Englacial layer mapping correlation and consistency techniques: an example from airborne ice penetrating radar profiles in West Antarctica

NASA Astrophysics Data System (ADS)

Sudunagunta, V.; Ballal, S.; Albach, R.; Muldoon, G.; Quartini, E.; Cavitte, M. G.; Young, D. A.; Blankenship, D. D.

2016-12-01

Ice sheets are important considerations in projections of sea level rise and studies of climate history. Satellite imagery, ice-penetrating radar, and ground penetrating radar are commonly used to understand the dynamics and health of ice sheets. We focus on how to accurately interpret ice-penetrating radar data by tracing isochrones dated by comparison to deep ice cores so that an extensive knowledge of the West Antarctic Ice Sheet's internal stratigraphy is obtained. The radar data shows englacial reflectors and isochrones are interpreted englacial reflectors. We analyze these features and attempt to understand their possible origins. Accurate interpretation of radar data is crucial because the data will be used to evaluate ice flow evolution and boundary conditions. It can also be used to validate simulated ice sheet models. However to do so, isochrones must be traced and connected correctly. Our approach accomplishes this and has the potential to be applied to other ice sheets on Earth and in extraterrestrial systems. We discuss the methodology utilized by our team to interpret data from the West Antarctic Ice Sheet collected using airborne ice-penetrating radar. The seismic reflection interpretation environment Landmark DecisionSpace was adapted to display and interpret the radar returns. When tracing isochrones, a group approach is used to maximize accuracy. In gridded surveys, loops are used to continuously check isochrones, in addition to retracing of isochrones by different group members to check for errors in interpretation. As loops are made, areas of possible scientific merit, such as isochrone drawdowns or Raymond bumps, are documented. A key aspect of this approach is the ability to work in a shared environment with a collaborative database like DecisionSpace. We will explore how we identified these features, their root causes, and subsequent implications for understanding ice sheet dynamics.

Pharmacogenomics Fact Sheet

MedlinePlus

... News & Meetings Science Education About NIGMS NIGMS Home > Science Education > Pharmacogenomics Pharmacogenomics Tagline (Optional) Middle/Main Content Area PDF Version (376 KB) Other Fact Sheets What is pharmacogenomics? Pharmacogenomics (sometimes called pharmacogenetics) ...

Checking Surface Contours

NASA Technical Reports Server (NTRS)

Velega, D.

1983-01-01

Rubber impressions viewed with optical comparator. Simple mold constructed from aluminum sheet or any other easily shaped material compatible with silicone rubber ingredients. Mold placed over surface to be measured. Newly-mixed silicone rubber compound poured in mold and allowed to cure.

Check out the Atmospheric Science User Forum

Atmospheric Science Data Center

2016-11-16

Check out the Atmospheric Science User Forum Tuesday, November 15, 2016 The ASDC would like to bring your attention to the Atmospheric Science User Forum. The purpose of this forum is to improve user service, quality, and efficiency of NASA atmospheric science data. The forum intends to provide a quick and easy way to facilitate ...

Trauma Fact Sheet

MedlinePlus

... News & Meetings Science Education About NIGMS NIGMS Home > Science Education > Physical Trauma Physical Trauma Tagline (Optional) Middle/Main Content Area PDF Version (420 KB) Other Fact Sheets What is physical trauma? Physical trauma is ...

A Test of Two Citation Checking Techniques for Evaluating Political Science Collections in University Libraries.

ERIC Educational Resources Information Center

Nisonger, Thomas E.

1983-01-01

Using random selection of citations from journal articles, two specific permutations of the citation checking approach to university library collection evaluation are tested on political science collections in five university libraries in the Washington, D.C. area. The history of the citation checking approach is reviewed. Forty-three references…

Sepsis Fact Sheet

MedlinePlus

... News & Meetings Science Education About NIGMS NIGMS Home > Science Education > Sepsis Sepsis Tagline (Optional) Middle/Main Content Area PDF Version (392 KB) En español Other Fact Sheets What is sepsis? Sepsis is a serious ...

Anesthesia Fact Sheet

MedlinePlus

... News & Meetings Science Education About NIGMS NIGMS Home > Science Education > Anesthesia Anesthesia Tagline (Optional) Middle/Main Content Area En español PDF Version (464 KB) Other Fact Sheets What is anesthesia? Anesthesia is a medical ...

Meeting highlights applications of Nek5000 simulation code | Argonne

Science.gov Websites

Photos Videos Fact Sheets, Brochures and Reports Summer Science Writing Internship Careers Education Photos Videos Fact Sheets, Brochures and Reports Summer Science Writing Internship Meeting highlights

Summer Roof Maintenance.

ERIC Educational Resources Information Center

Liscum, Curtis L.

1999-01-01

Presents the items to review in roofing maintenance to prepare for the impact of summer, including checking drainage, roof-field surface and membrane, flashings, sheet metal, and rooftop equipment, such as skylights and penthouses. A list of roofing facts facility managers should know are highlighted. (GR)

Antarctic Ice Sheet Discharge Driven by Atmosphere-Ocean Feedbacks Across the Last Glacial Termination

NASA Astrophysics Data System (ADS)

Fogwill, C. J.; Turney, C. S.; Golledge, N. R.; Etheridge, D. M.; Rubino, M.; Thornton, D.; Baker, A.; Weber, M. E.; Woodward, J.; van Ommen, T. D.; Moy, A. D.; Davies, S. M.; Bird, M. I.; Winter, K.; Munksgaard, N.; Menviel, L.; Rootes, C.; Vohra, J.; Rivera, A.; Cooper, A.

2016-12-01

Reconstructing the dynamic response of the Antarctic ice sheets to warming during the Last Glacial Termination (LGT; 18,000-11,650 yrs ago) allows us to identify ice-climate feedbacks that could improve future projections1,2. Whilst the sequence of events during this period are reasonably well-known, relatively poor chronological control has precluded precise alignment of ice, atmospheric and marine records2, making it difficult to assess relationships between Antarctic ice-sheet dynamics, climate change and sea-level rise3-5. Here we present results from a highly-resolved `horizontal ice core'6,7 from the Weddell Sea Embayment, which records millennial-scale ice-sheet dynamics across this extensive sector of Antarctica. Counterintuitively, we find ice-sheet surface drawdown of 600 m across the Antarctic Cold Reversal (ACR; 14,600-12,700 yrs ago)5, with stabilisation during the subsequent millennia of atmospheric warming. Earth system and ice-sheet modelling highlights that this response was likely sustained by strong ocean-ice feedbacks4,8; however, the drivers remain uncertain. Given the coincidence of the ice-sheet changes recorded with marked shifts in atmospheric circulation9,10,11we suggest that millennial-scale Antarctic ice-sheet behaviour was initiated and sustained by global atmospheric teleconnections across the LGT. This has important ramifications ice-sheet stability under contemporary climate change, with changing atmospheric and oceanic circulation patterns. 1 Collins, M. et al. in Climate Change 2013: The Physical Science Basis. 2 Weber, M. E. et al. Nature 510, 134-138, (2014). 3 Weaver, A. J., et al., Science 299, 1709-1713, (2003). 4 Golledge, N. R. et al. Nat Commun 5, (2014). 5 Pedro, J. B. et al. Nature Geosci9. 51-55 (2015). 6 Turney, C. S. M. et al. Journal of Quaternary Science 28, 697-704 (2013). 7 Winter, K. et al. Geophys. Res. Lett.43. 5. 2019-2026 (2016). 8 Menviel, L., A. et al., Quaternary Science Reviews 30, 1155-1172 (2011). 9 Hogg, A. et al. Scientific Reports 6(2016). 10 Hughen, K. A., et al., Radiocarbon 46, 1161-1187 (2004). 11 Anderson, R. F. et al. Science 323, 1443-1448, doi:10.1126/science.1167441 (2009).

Houston Cole Library Collection Assessment.

ERIC Educational Resources Information Center

Henderson, William Abbot, Ed.; McAbee, Sonja L., Ed.

This document reports on an assessment of the Jacksonville State University's Houston Cole Library collection that employed a variety of methodologies and tools, including list-checking, direct collection examination, shelflist measurement and analysis, WLN (Washington Library Network) conspectus sheets, analysis of OCLC/AMIGOS Collection Analysis…

50 CFR 660.113 - Trawl fishery-recordkeeping and reporting.

Code of Federal Regulations, 2012 CFR

2012-10-01

... materials as well as other information stored in or accessible through a computer or other information retrieval system; worksheets; weight slips; preliminary, interim, and final tally sheets; receipts; checks... compliance with all reporting requirements described in this paragraph. (i) Required information. All IFQ...

50 CFR 660.113 - Trawl fishery-recordkeeping and reporting.

Code of Federal Regulations, 2013 CFR

2013-10-01

... materials as well as other information stored in or accessible through a computer or other information retrieval system; worksheets; weight slips; preliminary, interim, and final tally sheets; receipts; checks... compliance with all reporting requirements described in this paragraph. (i) Required information. All IFQ...

50 CFR 660.113 - Trawl fishery-recordkeeping and reporting.

Code of Federal Regulations, 2014 CFR

2014-10-01

... materials as well as other information stored in or accessible through a computer or other information retrieval system; worksheets; weight slips; preliminary, interim, and final tally sheets; receipts; checks... compliance with all reporting requirements described in this paragraph. (i) Required information. All IFQ...

50 CFR 660.113 - Trawl fishery-recordkeeping and reporting.

Code of Federal Regulations, 2011 CFR

2011-10-01

... materials as well as other information stored in or accessible through a computer or other information retrieval system; worksheets; weight slips; preliminary, interim, and final tally sheets; receipts; checks... described in this paragraph. (i) Required information. All IFQ first receivers must provide the following...

Building Condition and Suitability Evaluation Manual.

ERIC Educational Resources Information Center

MGT of America, Inc., Tallahassee, FL.

This educational facility evaluation manual contains the overall building condition rating form and the supporting check sheets which have been field tested in several states and, where appropriate, modified for use in the Idaho School Facilities Needs Assessment. The exterior building condition form examines the foundation, structure, walls,…

47 CFR 61.54 - Composition of tariffs.

Code of Federal Regulations, 2010 CFR

2010-10-01

... currency, per chargeable unit of service for all communication services, together with a list of all points... order: A title page; check sheet; table of contents; list of concurring, connecting, and other... geographical application; and the type of facilities used to provide service. (3) Expiration date. Subject to...

Tips for Effective Management

ERIC Educational Resources Information Center

Supple, Kevin F.

2009-01-01

School business officials' days are filled with numbers and reports--audits, balance sheets, check registers, financial statements, journal entries, vouchers, and warrant reports, just to name a few. Those are all important tools that school business officers use to manage the financial resources of the district effectively. However, they are also…

Teaching Reading in Vocational Education.

ERIC Educational Resources Information Center

South Carolina State Dept. of Education, Columbia. Office of Vocational Education.

This handbook on teaching reading in vocational education is designed to provide vocational education teachers with a resource to use in helping students to develop sound reading skills. Provided in the handbook are information sheets, self-checks, practice activities, and suggestions for further reading dealing with the following topics:…

Improving Climate Literacy Using The Ice Sheet System Model (ISSM): A Prototype Virtual Ice Sheet Laboratory For Use In K-12 Classrooms

NASA Astrophysics Data System (ADS)

Halkides, D. J.; Larour, E. Y.; Perez, G.; Petrie, K.; Nguyen, L.

2013-12-01

Statistics indicate that most Americans learn what they will know about science within the confines of our public K-12 education system and the media. Next Generation Science Standards (NGSS) aim to remedy science illiteracy and provide guidelines to exceed the Common Core State Standards that most U.S. state governments have adopted, by integrating disciplinary cores with crosscutting ideas and real life practices. In this vein, we present a prototype ';Virtual Ice Sheet Laboratory' (I-Lab), geared to K-12 students, educators and interested members of the general public. I-Lab will allow users to perform experiments using a state-of-the-art dynamical ice sheet model and provide detailed downloadable lesson plans, which incorporate this model and are consistent with NGSS Physical Science criteria for different grade bands (K-2, 3-5, 6-8, and 9-12). The ultimate goal of this website is to improve public climate science literacy, especially in regards to the crucial role of the polar ice sheets in Earth's climate and sea level. The model used will be the Ice Sheet System Model (ISSM), an ice flow model developed at NASA's Jet Propulsion Laboratory and UC Irvine, that simulates the near-term evolution of polar ice sheets (Greenland and Antarctica) and includes high spatial resolution capabilities and data assimilation to produce realistic simulations of ice sheet dynamics at the continental scale. Open sourced since 2011, ISSM is used in cutting edge cryosphere research around the globe. Thru I-Lab, students will be able to access ISSM using a simple, online graphical interface that can be launched from a web browser on a computer, tablet or smart phone. The interface will allow users to select different climate conditions and watch how the polar ice sheets evolve in time under those conditions. Lesson contents will include links to background material and activities that teach observation recording, concept articulation, hypothesis formulation and testing, and critical problem solving appropriate to grade level.

NASA's Airborne Science DC-8 displays new colors in a check flight over the Dryden Flight Research Center

NASA Image and Video Library

2004-02-24

NASA's large Airborne Science research aircraft, a modified DC-8 airliner, displayed new colors in a check flight Feb. 24, 2004, over its home base, the NASA Dryden Flight Research Center at Edwards AFB, California.

New magnetism research brings high-temp superconductivity applications

Science.gov Websites

Contacts Social Media Photos Videos Fact Sheets, Brochures and Reports Summer Science Writing Internship Contacts Social Media Photos Videos Fact Sheets, Brochures and Reports Summer Science Writing Internship New magnetism research brings high-temp superconductivity applications closer By Angela Hardin * April

KEEPING THE BOOKS FOR ENVIRONMENTAL SYSTEMS: AN EMERGY ANALYSIS OF WEST VIRGINIA

EPA Science Inventory

Emergy provides a general accounting mechanism that allows us to view the economy and the environment on the same income statement and balance sheet. This allows an auditor to verify the economic picture by checking it against a more complete representation of the flows and stora...

AN EMERGY AUDIT OF WEST VIRGINIA: STRENGTHS AND VULNERABILITIES

EPA Science Inventory

Emergy provides a general accounting mechanism that allows us to view the economy of humanity and the economy of nature on the same income and balance sheets. In this manner we can verify the financial picture given by economic analysis by checking it against a similar represen...

Assessing Educational Processes Using Total-Quality-Management Measurement Tools.

ERIC Educational Resources Information Center

Macchia, Peter, Jr.

1993-01-01

Discussion of the use of Total Quality Management (TQM) assessment tools in educational settings highlights and gives examples of fishbone diagrams, or cause and effect charts; Pareto diagrams; control charts; histograms and check sheets; scatter diagrams; and flowcharts. Variation and quality are discussed in terms of continuous process…

Machine Shop. Student Learning Guide.

ERIC Educational Resources Information Center

Palm Beach County Board of Public Instruction, West Palm Beach, FL.

This student learning guide contains eight modules for completing a course in machine shop. It is designed especially for use in Palm Beach County, Florida. Each module covers one task, and consists of a purpose, performance objective, enabling objectives, learning activities and resources, information sheets, student self-check with answer key,…

Copper clusters capture and convert carbon dioxide to make fuel | Argonne

Science.gov Websites

Photos Videos Fact Sheets, Brochures and Reports Summer Science Writing Internship Careers Education Photos Videos Fact Sheets, Brochures and Reports Summer Science Writing Internship Copper clusters sites, the current method of reduction creates high-pressure conditions to facilitate stronger bonds

Argonne to lead 8 DOE Grid Modernization Projects | Argonne National

Science.gov Websites

Photos Videos Fact Sheets, Brochures and Reports Summer Science Writing Internship Careers Education Photos Videos Fact Sheets, Brochures and Reports Summer Science Writing Internship Argonne to lead 8 DOE Performance and Reliability of Combined Transmission-Distribution with High Solar Penetration Develop a

Science in 60 – The Hunt for Antarctic Meteorites

DOE Office of Scientific and Technical Information (OSTI.GOV)

Lanza, Nina

2015-12-08

She's the "coolest" thing in science, searching the ice sheets of Antarctica for meteorites from outer space. Los Alamos National Laboratory scientist Nina Lanza has signed up to spend nearly six weeks in a tent on the Antarctic ice sheet. Why would anyone do such a thing? For science, obviously! In the premiere episode of Los Alamos National Laboratory's "Science in 60" video series, Lanza gives us the low-down in 60 seconds on the why and how of hunting meteorites on the ice.

Science in 60 – The Hunt for Antarctic Meteorites

ScienceCinema

Lanza, Nina

2018-01-16

She's the "coolest" thing in science, searching the ice sheets of Antarctica for meteorites from outer space. Los Alamos National Laboratory scientist Nina Lanza has signed up to spend nearly six weeks in a tent on the Antarctic ice sheet. Why would anyone do such a thing? For science, obviously! In the premiere episode of Los Alamos National Laboratory's "Science in 60" video series, Lanza gives us the low-down in 60 seconds on the why and how of hunting meteorites on the ice.

THE APPLICATION OF RADIOISOTOPES IN SHIPBUILDING FOR NONDESTRUCTIVE MATERIAL TESTING

DOE Office of Scientific and Technical Information (OSTI.GOV)

Gerlach, H.

1962-02-01

S>Safety and reliability in shipbuilding require exact testing methods for all materials, such as plates, sheets, rods, cast pieces, welded joints, etc. Non-visible defects in parts exposed to great stress may cause great damages. Since both x-ray and gamma radiography can detect these defects, a choice has to be made between these radiation sources. ln general, for very thick pieces, gamma emitters such as Co/sup 60/ or Ta/sup 182/ are used; for medium thick pieces, gamma emitters, such as Ir/sup 192/ or Cs/sup 137/ are used; for very thin pieces weak gamma emitters, such as Eu/sup 155/ or x raysmore » are used. There is no competition between x rays and gamma rays in nondestructive testing because both methods supplement each other. The tcchnical and economical advantages and disadvantages of both methods are discussed. In shipbuilding, Ir/ sup 192/ has extremely good irradiation qualities for sheets from 6 to 50 mm thick and is superior to the x-ray method for checking welds of sheets of this thickness. However, for materials thicker than 50 mm x rays are useless, and defects in this material must be located with hard gamma emitters, such as Co/ sup 60/. Recently, mobile test stations with radioisotopes were established which are of great value for checking and quality control in shipbuilding at the shipyard. (OID)« less

Outreach/education interface for Cryosphere models using the Virtual Ice Sheet Laboratory

NASA Astrophysics Data System (ADS)

Larour, E. Y.; Halkides, D. J.; Romero, V.; Cheng, D. L.; Perez, G.

2014-12-01

In the past decade, great strides have been made in the development of models capable of projecting the future evolution of glaciers and the polar ice sheets in a changing climate. These models are now capable of replicating some of the trends apparent in satellite observations. However, because this field is just now maturing, very few efforts have been dedicated to adapting these capabilities to education. Technologies that have been used in outreach efforts in Atmospheric and Oceanic sciences still have not been extended to Cryospheric Science. We present a cutting-edge, technologically driven virtual laboratory, geared towards outreach and k-12 education, dedicated to the polar ice sheets on Antarctica and Greenland, and their role as major contributors to sea level rise in coming decades. VISL (Virtual Ice Sheet Laboratory) relies on state-of-the art Web GL rendering of polar ice sheets, Android/iPhone and web portability using Javascript, as well as C++ simulations (back-end) based on the Ice Sheet System Model, the NASA model for simulating the evolution of polar ice sheets. Using VISL, educators and students can have an immersive experience into the world of polar ice sheets, while at the same exercising the capabilities of a state-of-the-art climate model, all of it embedded into an education experience that follows the new STEM standards for education.This work was performed at the California Institute of Technology's Jet Propulsion Laboratory under a contract with the National Aeronautics and Space Administration's Cryosphere Science Program.

NASA's Airborne Science DC-8, displaying new colors in a check flight Feb. 24, 2004, over the Dryden Flight Research Center

NASA Image and Video Library

2004-02-24

NASA's large Airborne Science research aircraft, a modified DC-8 airliner, displayed new colors in a check flight Feb. 24, 2004, over its home base, the NASA Dryden Flight Research Center at Edwards AFB, California.

Fuels planning: science synthesis and integration; social issues fact sheet 04: Three critical topics to cover when talking about hazards

Treesearch

Rocky Mountain Research Station USDA Forest Service

2004-01-01

The amount of science applicable to the management of wildfire hazards is increasing daily. In addition, the attitudes of landowners and policymakers about fire and fuels management are changing. This fact sheet discusses three critical keys to communicating about wildfire hazards.

Argonne works with marine industry on new fuel | Argonne National

Science.gov Websites

Photos Videos Fact Sheets, Brochures and Reports Summer Science Writing Internship Careers Education Photos Videos Fact Sheets, Brochures and Reports Summer Science Writing Internship Argonne works with October 2, 2017 After-school energy rush September 28, 2017 Trash to treasure: The benefits of waste-to

Self-propagated combustion synthesis of few-layered graphene: an optical properties perspective.

PubMed

Mohandoss, Manonmani; Sen Gupta, Soujit; Kumar, Ramesh; Islam, Md Rabiul; Som, Anirban; Mohd, Azhardin Ganayee; Pradeep, T; Maliyekkal, Shihabudheen M

2018-04-26

This paper describes a labour efficient and cost-effective strategy to prepare few-layered of reduced graphene oxide like (RGOL) sheets from graphite. The self-propagated combustion route enables the bulk production of RGOL sheets. Microscopic and spectroscopic analyses confirmed the formation of few-layer graphene sheets of an average thickness of ∼3 nm and the presence of some oxygen functional groups with a C/O ratio of 8.74. A possible mechanistic pathway for the formation of RGOL sheets is proposed. The optical properties of the RGOL sample were studied in detail by means of Spectroscopic Ellipsometry (SE). The experimental abilities of SE in relating the optical properties with the number of oxygen functionalities present in the samples are explored. The data were analysed by a double-layered optical model along with the Drude-Lorentz oscillatory dispersion relation. The refractive index (n = 2.24), extinction coefficient (k = 2.03), and dielectric functions are obtained using point-by-point analysis and are also checked for Kramers-Kronig (KK) consistency.

Food Marketing: Cashier-Checker. Student Material. Competency Based Curriculum.

ERIC Educational Resources Information Center

Froelich, Larry; And Others

This curriculum for food marketing (cashier-checking) is designed to provide entry-level employment skills. It is organized into 13 units which contain one to ten competencies. A student competency sheet provided for each competency is organized into this format: unit and competency number and name, learning steps, learning activities, and…

40 CFR 63.822 - Definitions.

Code of Federal Regulations, 2013 CFR

2013-07-01

... roller that transfers material to a raised image (type or art) on a plate cylinder. The material is then transferred from the image on the plate cylinder to the web or sheet to be printed. A flexographic print... press means any press which prints only non-saleable items used to check the quality of image formation...

40 CFR 63.822 - Definitions.

Code of Federal Regulations, 2012 CFR

2012-07-01

... roller that transfers material to a raised image (type or art) on a plate cylinder. The material is then transferred from the image on the plate cylinder to the web or sheet to be printed. A flexographic print... press means any press which prints only non-saleable items used to check the quality of image formation...

40 CFR 63.822 - Definitions.

Code of Federal Regulations, 2014 CFR

2014-07-01

... roller that transfers material to a raised image (type or art) on a plate cylinder. The material is then transferred from the image on the plate cylinder to the web or sheet to be printed. A flexographic print... press means any press which prints only non-saleable items used to check the quality of image formation...

Design study of the geometry of the blanking tool to predict the burr formation of Zircaloy-4 sheet

NASA Astrophysics Data System (ADS)

Ha, Jisun; Lee, Hyungyil; Kim, Dongchul; Kim, Naksoo

2013-12-01

In this work, we investigated factors that influence burr formation for zircaloy-4 sheet used for spacer grids of nuclear fuel roads. Factors we considered are geometric factors of punch. We changed clearance and velocity in order to consider the failure parameters, and we changed shearing angle and corner radius of L-shaped punch in order to consider geometric factors of punch. First, we carried out blanking test with failure parameter of GTN model using L-shaped punch. The tendency of failure parameters and geometric factors that affect burr formation by analyzing sheared edges is investigated. Consequently, geometric factor's influencing on the burr formation is also high as failure parameters. Then, the sheared edges and burr formation with failure parameters and geometric factors is investigated using FE analysis model. As a result of analyzing sheared edges with the variables, we checked geometric factors more affect burr formation than failure parameters. To check the reliability of the FE model, the blanking force and the sheared edges obtained from experiments are compared with the computations considering heat transfer.

Positive lithiation potential on functionalized Graphene sheets

NASA Astrophysics Data System (ADS)

Chouhan, Rajiv Kumar; Raghani, Pushpa

2015-03-01

Designing lithium batteries with high capacities is major challenge in the field of energy storage. As an alternative to the conventional graphitic anode with a capacity of ~372 mAhg-1 , we look at the adsorption of lithium on 2D graphene oxide (GO) sheets. We have included van-der-waal's interaction in our calculation and compared with literature showing its importance in Li binding on Graphene sheets. In comparison to the negative lithiation potential in prestine graphene sheets, we were able to get positive lithiation potential by introducing functional groups such as epoxy(-O-) and hydroxyl(-OH) on graphene. Also the non-stoichiometic nature of GO provides better potential to increase the lithiation potential in compare to the defects induced graphene 2D sheet. Dramatic charge redistribution within the sheet due to presence of highly electronegative oxygen plays an important role in increasing the capacity. Financial support from Research Corporation's Cottrell College Science award and National Science Foundation's CAREER award (DMR-1255584). Computational facilities provided by HPC center of Idaho National Laboratory.

Mathematics and Science Test Gaps. Pell Institute Fact Sheet. Updated

ERIC Educational Resources Information Center

Pell Institute for the Study of Opportunity in Higher Education, 2011

2011-01-01

Data is reported as percentages in 4th, 8th, and 12th grades based on proficiency in the subject ("Below Basic," "At Basic," "At Proficient", or "At Advanced"). "Low-income" on this data sheet means students who qualify for the National School Lunch Program. Both math and science data are from 2009…

Are current sheets the boundary of fluxtubes in the solar wind? -- A study from multiple spacecraft observation

NASA Astrophysics Data System (ADS)

Li, G.; Arnold, L.; Miao, B.; Yan, Y.

2011-12-01

G. Li (1,2), L. Arnold (1), B. Miao (3) and Y. Yan (4) (1) Department of Physics, University of Alabama in Huntsville Huntsville, AL, 35899 (2) CSPAR, University of Alabama in Huntsville Huntsville, AL, 35899 (3) School of Earth and Space Sciences, University of Science and Technology of CHINA, Hefei, China (4) Key Laboratory of Solar Activity, National Astronomical Observatories, Chinese Academy of Science, Beijing 100012, China Current sheets is a common structure in the solar wind and is a significant source of solar wind MHD turbulence intermittency. The origin of these structure is presently unknown. Non-linear interactions of the solar wind MHD turbulence can spontaneously generate these structures. On the other hand, there are proposals that these structures may represent relic structures having solar origins. Using a technique developed in [1], we examine current sheets in the solar wind from multiple spacecraft. We identify the "single-peak" and "double-peak" events in the solar wind and discuss possible scenarios for these events and its implication of the origin of the current sheets. [1] Li, G., "Identify current-sheet-like structures in the solar wind", ApJL 672, L65, 2008.

THE RELATIONSHIPS OF INTEREST AND ATTENTION TO RETENTION AND ATTITUDE CHANGE.

ERIC Educational Resources Information Center

BECKER, SAMUEL L.

THE FOLLOWING QUESTIONS WERE EXPLORED IN THIS STUDY--(1) WHAT IS THE RELATIONSHIP AMONG RESPONSES OBTAINED WHEN SUBJECTS VIEW AN INSTRUCTIONAL TELEVISION PROGRAM AND NOTE THEIR INTEREST BY PRESSING OR RELEASING A BUTTON, BY CHECKING COLUMNS ON A SHEET OF PAPER, AND WHEN GALVANIC SKIN RESPONSES (GSR) ARE CHARTED, (2) WHAT IS THE RELATIONSHIP…

50 CFR 32.60 - South Carolina.

Code of Federal Regulations, 2013 CFR

2013-10-01

.... You may possess only approved nontoxic shot while hunting on the refuge (see §32.2(k)). 4. We prohibit..., possessing, or transporting more than one 3-quart plastic bag of sea shells per person per day from the... in daily at one of the small game check sheet drop boxes. 3. We prohibit discharge of weapons (see...

50 CFR 32.60 - South Carolina.

Code of Federal Regulations, 2010 CFR

2010-10-01

.... You may possess only approved nontoxic shot while hunting on the refuge (see §32.2(k)). 4. We prohibit..., possessing, or transporting more than one 3-quart plastic bag of sea shells per person per day from the... in daily at one of the small game check sheet drop boxes. 3. We prohibit discharge of weapons (see...

50 CFR 32.60 - South Carolina.

Code of Federal Regulations, 2011 CFR

2011-10-01

.... You may possess only approved nontoxic shot while hunting on the refuge (see §32.2(k)). 4. We prohibit..., possessing, or transporting more than one 3-quart plastic bag of sea shells per person per day from the... in daily at one of the small game check sheet drop boxes. 3. We prohibit discharge of weapons (see...

50 CFR 32.60 - South Carolina.

Code of Federal Regulations, 2012 CFR

2012-10-01

.... You may possess only approved nontoxic shot while hunting on the refuge (see §32.2(k)). 4. We prohibit..., possessing, or transporting more than one 3-quart plastic bag of sea shells per person per day from the... in daily at one of the small game check sheet drop boxes. 3. We prohibit discharge of weapons (see...

50 CFR 32.60 - South Carolina.

Code of Federal Regulations, 2014 CFR

2014-10-01

.... You may possess only approved nontoxic shot while hunting on the refuge (see §32.2(k)). 4. We prohibit..., possessing, or transporting more than one 3-quart plastic bag of sea shells per person per day from the... in daily at one of the small game check sheet drop boxes. 3. We prohibit discharge of weapons (see...

Exploring the Moon: A Teacher's Guide with Activities for Earth and Space Sciences.

ERIC Educational Resources Information Center

National Aeronautics and Space Administration, Washington, DC.

These materials have been designed for use with the upper elementary through high school levels especially, but not exclusively, with the Lunar Sample Disk. This book contains: information on the Lunar Sample Disk, a curriculum content matrix, a teacher's guide, Moon ABCs fact sheet, rock ABCs fact sheet, Progress in Lunar Science chart, 17…

Fuels planning: science synthesis and integration; environmental consequences fact sheet 05: prescriptions and fire effects

Treesearch

Melanie Miller

2004-01-01

Fuels planning: science synthesis and integration; environmental consequences fact sheet 5: prescriptions and fire effects. Miller, Melanie. 2004. Res. Note RMRS-RN-23-5-WWW. Fort Collins, CO: U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station. 2 p. While our understanding of the causes for variation in postfire effects is increasing, burn...

SU-D-BRD-01: An Automated Physics Weekly Chart Checking System Supporting ARIA

DOE Office of Scientific and Technical Information (OSTI.GOV)

Chang, X; Yang, D

Purpose: A software tool was developed in this study to perform automatic weekly physics chart check on the patient data in ARIA. The tool accesses the electronic patient data directly from ARIA server and checks the accuracy of treatment deliveries, and generates reports which summarize the delivery history and highlight the errors. Methods: The tool has four modules. 1) The database interface is designed to directly access treatment delivery data from the ARIA database before reorganizing the data into the patient chart tree (PCT). 2) PCT is a core data structure designed to store and organize the data in logicalmore » hierarchies, and to be passed among functions. 3) The treatment data check module analyzes the organized data in PCT and stores the checking results into PCT. 4) Report generation module generates reports containing the treatment delivery summary, chart checking results and plots of daily treatment setup parameters (couch table positions, shifts of image guidance). The errors that are found by the tool are highlighted with colors. Results: The weekly check tool has been implemented in MATLAB and clinically tested at two major cancer centers. Javascript, cascading style sheets (CSS) and dynamic HTML were employed to create the user-interactive reports. It takes 0.06 second to search the delivery records of one beam with PCT and compare the delivery records with beam plan. The reports, saved in the HTML files on shared network folder, can be accessed by web browser on computers and mobile devices. Conclusion: The presented weekly check tool is useful to check the electronic patient treatment data in Varian ARIA system. It could be more efficient and reliable than the manually check by physicists. The work was partially supported by a research grant from Varian Medical System.« less

Distributioin, orientation and scales of the field-aligned currents measured by Swarm

NASA Astrophysics Data System (ADS)

Yang, J.; Dunlop, M. W.

2016-12-01

We have statistically studied the R1, R2 and net field aligned currents using the FAC data of the Swarm satellites. We also have investigated the statistical, dual-spacecraft correlations of field-aligned current signatures between two Swarm spacecraft (A and C). For the first time we have inferred the orientations of the current sheets of FACs directly, using the maximum correlations, obtained from sliding data segments, which show clear trends in magnetic local time (MLT). To compare with this we also check the MVAB method. To explore the scale and variability of the current sheet supposition, we investigate the MLT dependence of the maximum correlations in different time shift or longitude shift bins.

47 CFR 61.52 - Form, size, type, legibility, etc.

Code of Federal Regulations, 2012 CFR

2012-10-01

...,” “Original page 1,” “Original page 2,” etc. (1) All such pages must show, in the upper left-hand corner the... designation directly below; in the lower left-hand corner the issued date; in the lower right-hand corner the... and check sheet only. (2) As an alternative, the issuing carrier may show in the upper left-hand...

47 CFR 61.52 - Form, size, type, legibility, etc.

Code of Federal Regulations, 2014 CFR

2014-10-01

...,” “Original page 1,” “Original page 2,” etc. (1) All such pages must show, in the upper left-hand corner the... designation directly below; in the lower left-hand corner the issued date; in the lower right-hand corner the... and check sheet only. (2) As an alternative, the issuing carrier may show in the upper left-hand...

47 CFR 61.52 - Form, size, type, legibility, etc.

Code of Federal Regulations, 2013 CFR

2013-10-01

...,” “Original page 1,” “Original page 2,” etc. (1) All such pages must show, in the upper left-hand corner the... designation directly below; in the lower left-hand corner the issued date; in the lower right-hand corner the... and check sheet only. (2) As an alternative, the issuing carrier may show in the upper left-hand...

The Systems Approach to Functional Job Analysis. Task Analysis of the Physician's Assistant: Volume I--Task Analysis Methodology and Techniques.

ERIC Educational Resources Information Center

Wake Forest Univ., Winston Salem, NC. Bowman Gray School of Medicine.

Utilizing a systematic sampling technique, the professional activities of small groups of pediatricians, family practitioners, surgeons, obstetricians, and internists were observed for 4 or 5 days by a medical student who checked a prearranged activity sheet every 30 seconds to: (1) identify those tasks and activities an assistant could be trained…

A System for Reflective Learning Using Handwriting Tablet Devices for Real-Time Event Bookmarking into Simultaneously Recorded Videos

ERIC Educational Resources Information Center

Nakajima, Taira

2012-01-01

The author demonstrates a new system useful for reflective learning. Our new system offers an environment that one can use handwriting tablet devices to bookmark symbolic and descriptive feedbacks into simultaneously recorded videos in the environment. If one uses video recording and feedback check sheets in reflective learning sessions, one can…

47 CFR 61.52 - Form, size, type, legibility, etc.

Code of Federal Regulations, 2011 CFR

2011-10-01

...,” “Original page 1,” “Original page 2,” etc. (1) All such pages must show, in the upper left-hand corner the... designation directly below; in the lower left-hand corner the issued date; in the lower right-hand corner the... and check sheet only. (2) As an alternative, the issuing carrier may show in the upper left-hand...

External audits of electron beams using mailed TLD dosimetry: preliminary results.

PubMed

Gomola, I; Van Dam, J; Isern-Verdum, J; Verstraete, J; Reymen, R; Dutreix, A; Davis, B; Huyskens, D

2001-02-01

A feasibility study has been performed to investigate the possibility of using mailed thermoluminescence dosimetry (TLD) for external audits of clinical electron beams in Europe. In the frame of the EC Network Project for Quality Assurance in Radiotherapy, instruction sheets and mailing procedures have been defined for mailed TLD dosimetry using the dedicated holder developed by a panel of experts of the International Atomic Energy Agency (IAEA). Three hundred and thirty electron beam set-ups have been checked in the reference centres and some local centres of the EC Network Project and in addition through the centres participating to the EORTC Radiotherapy Group trial 22922. The mean ratio of measured dose to stated dose is 0.2% and the standard deviation of measured dose to stated dose is 3.2%. In seven beam set-ups, deviations greater than 10% were observed (max. 66%), showing the usefulness of these checks. The results of this feasibility study (instruction sheets, mailing procedures, holder) are presently endorsed by the EQUAL-ESTRO structure in order to offer in the future to all ESTRO members the possibility to request external audits of clinical electron beams.

Interhemispheric ice-sheet synchronicity during the Last Glacial Maximum

NASA Astrophysics Data System (ADS)

Weber, M. E.; Clark, P. U.; Ricken, W.; Mitrovica, J. X.; Hostetler, S. W.; Kuhn, G.

2012-04-01

The timing of the last maximum extent of the Antarctic ice sheets relative to those in the Northern Hemisphere remains poorly understood because only a few findings with robust chronologies exist for Antarctic ice sheets. We developed a chronology for the Weddell Sea sector of the East Antarctic ice sheet that, combined with ages from other Antarctic ice-sheet sectors, indicates the advance to their maximum extent at 29 -28 ka, and retreat from their maximum extent at 19 ka was nearly synchronous with Northern Hemisphere ice sheets (Weber, M.E., Clark, P. U., Ricken, W., Mitrovica, J. X., Hostetler, S. W., and Kuhn, G. (2011): Interhemispheric ice-sheet synchronicity during the Last Glacial Maximum. - Science, 334, 1265-1269, doi: 10.1126:science.1209299). As for the deglaciation, modeling studies suggest a late ice-sheet retreat starting around 14 ka BP and ending around 7 ka BP with a large impact of an unstable West Antarctic Ice Sheet (WAIS) and a small impact of a stable East Antarctic Ice Sheet (EAIS). However, the Weddell Sea sites studied here, as well as sites from the Scotia Sea, provide evidence that specifically the EAIS responded much earlier, possibly provided a significant contribution to the last sea-level rise, and was much more dynamic than previously thought. Using the results of an atmospheric general circulation we conclude that surface climate forcing of Antarctic ice mass balance would likely cause an opposite response, whereby a warming climate would increase accumulation but not surface melting. Furthermore, our new data support teleconnections involving a sea-level fingerprint forced from Northern Hemisphere ice sheets as indicated by gravitational modeling. Also, changes in North Atlantic Deepwater formation and attendant heat flux to Antarctic grounding lines may have contributed to synchronizing the hemispheric ice sheets.

West Antarctic Ice Sheet Initiative. Volume 1: Science and Implementation Plan

NASA Technical Reports Server (NTRS)

Bindschadler, Robert A. (Editor)

1990-01-01

The Science and Implementation Plan of the West Antarctic Ice Sheet Initiative (WAIS) is described. The goal of this initiative is the prediction of the future behavior of this ice sheet and an assessment of its potential to collapse, rapidly raising global sea level. The multidisciplinary nature of WAIS reflects the complexity of the polar ice sheet environment. The project builds upon past and current polar studies in many fields and meshes with future programs of both the U.S. and other countries. Important tasks in each discipline are described and a coordinated schedule by which the majority of these tasks can be accomplished in 5 years is presented. The companion report (Volume 2) contains seven discipline review papers on the state of knowledge of Antarctica and opinions on how that knowledge must be increased to attain the WAIS goal.

Fuels planning: science synthesis and integration; social issues fact sheet 08: The "Golden Rule" and other lessons on communicating about hazards

Treesearch

Rocky Mountain Research Station USDA Forest Service

2004-01-01

Other fact sheets identified considerations for communicating about hazards, talked about the importance of working locally, and discussed the seven laws of effective hazard communication. This fact sheet introduces the "Golden Rule" of hazard communication and shares some final lessons from hazard educators.

Burns Fact Sheet

MedlinePlus

... Over Navigation Links National Institute of General Medical Sciences Site Map Staff Search My Order Search the ... NIGMS Website Research Funding Research Training News & Meetings Science Education About NIGMS NIGMS Home > Science Education > Burns ...

Mobile Attendance Checking System on Android Platform for Kazakhstani University

NASA Astrophysics Data System (ADS)

Saparkhojayev, N.; Shakhov, E.; Mailybayev, Y.

2016-04-01

In the 21st century-the century of Information Technology, it is difficult to imagine life without any gadgets: phones, tablets, computers, laptops, and so on. Today, smartphones and tablets are becoming popular, and thus their operating systems become popular too. Android is designed for low-power devices that run on battery power at full capacity, using all of its services, such as cameras, lights, GPS navigation, Wi-Fi, etc. In Kazakhstani universities, the process of checking students’ attendance is one of the important issues, because final grade evaluation of students is based on their total number of appearances and their grades during the whole semester. This raises the question of having some tool to control students’ attendance. There are many possible ways of controlling attendance: there are many examples when universities prefer to control attendance by the use of paper sheet, and some universities prefer to use two-stage way of controlling attendance: firstly, teachers and professors use paper sheet for checking students’ attendance and after this, they fill out these information into a system manually. However, this is not an efficient way since there will be spent much of time for calling students names and putting marks like “presence” or “absence” if the class is a lecture class, and in this class at least 5 groups are presented. Furthermore, some students may call his/her friend as “presence” nevertheless to the fact that this student is currently absent. After taking into consideration all these issues and the fact that many gadgets use Android platform, authors of the following research paper decided to create a mobile system that makes easier to check students’ attendance automatically, and this system is implemented in Almaty Management University, Kazakhstan. The system is based on Android platform, and in this paper, details of this system are presented.

Learning To Think, Learning To Learn: What the Science of Thinking and Learning Has To Offer Adult Education. NIFL Literacy Leader Fellowship, Program Reports, Volume IV, Number 1.

ERIC Educational Resources Information Center

Cromley, Jennifer

This book, developed for adult educators who teach or tutor reading in General Educational Development (GED) classrooms and for teacher trainers, contains 18 fact sheets on learning and thinking, each about 10 pages long. The following fact sheets are included: (1) Literature Is Not Science; (2) Making Connections; (3) Mental Models; (4) Thinking…

Cancer Causes: Popular Myths about the Causes of Cancer

MedlinePlus

... myths/antiperspirants-fact-sheet. Accessed Nov. 1, 2016. Science fact or science fiction? – 9 common cancer myths. Cancer.Net. http://www.cancer.net/blog/2015-03/science-fact-or-science-fiction-%E2%80%93-9-common- ...

15 CFR Appendix 2 to Part 960 - Fact Sheet Regarding the Memorandum of Understanding Concerning the Licensing of Private Remote...

Code of Federal Regulations, 2010 CFR

2010-01-01

... 15 Commerce and Foreign Trade 3 2010-01-01 2010-01-01 false Fact Sheet Regarding the Memorandum of... to Part 960—Fact Sheet Regarding the Memorandum of Understanding Concerning the Licensing of Private Remote Sensing Satellite Systems Dated February 2, 2000 The White House, Office of Science and Technology...

15 CFR Appendix 2 to Part 960 - Fact Sheet Regarding the Memorandum of Understanding Concerning the Licensing of Private Remote...

Code of Federal Regulations, 2011 CFR

2011-01-01

... 15 Commerce and Foreign Trade 3 2011-01-01 2011-01-01 false Fact Sheet Regarding the Memorandum of... to Part 960—Fact Sheet Regarding the Memorandum of Understanding Concerning the Licensing of Private Remote Sensing Satellite Systems Dated February 2, 2000 The White House, Office of Science and Technology...

15 CFR Appendix 2 to Part 960 - Fact Sheet Regarding the Memorandum of Understanding Concerning the Licensing of Private Remote...

Code of Federal Regulations, 2012 CFR

2012-01-01

... 15 Commerce and Foreign Trade 3 2012-01-01 2012-01-01 false Fact Sheet Regarding the Memorandum of... to Part 960—Fact Sheet Regarding the Memorandum of Understanding Concerning the Licensing of Private Remote Sensing Satellite Systems Dated February 2, 2000 The White House, Office of Science and Technology...

15 CFR Appendix 2 to Part 960 - Fact Sheet Regarding the Memorandum of Understanding Concerning the Licensing of Private Remote...

Code of Federal Regulations, 2013 CFR

2013-01-01

... 15 Commerce and Foreign Trade 3 2013-01-01 2013-01-01 false Fact Sheet Regarding the Memorandum of... to Part 960—Fact Sheet Regarding the Memorandum of Understanding Concerning the Licensing of Private Remote Sensing Satellite Systems Dated February 2, 2000 The White House, Office of Science and Technology...

15 CFR Appendix 2 to Part 960 - Fact Sheet Regarding the Memorandum of Understanding Concerning the Licensing of Private Remote...

Code of Federal Regulations, 2014 CFR

2014-01-01

... 15 Commerce and Foreign Trade 3 2014-01-01 2014-01-01 false Fact Sheet Regarding the Memorandum of... to Part 960—Fact Sheet Regarding the Memorandum of Understanding Concerning the Licensing of Private Remote Sensing Satellite Systems Dated February 2, 2000 The White House, Office of Science and Technology...

Elements of Sexism in a Selected Group of Picture Books Recommended for Kindergarten Use.

ERIC Educational Resources Information Center

Easley, Ann

A list of 100 books recommended for kindergarten use were reviewed and evaluated for elements of sexism and sex role stereotyping. Each book was carefully scanned and notations made on survey sheets. The story was checked to see if it was a boy or girl centered story, had an adult male or adult female character, male or female animal or inanimate…

75 FR 45632 - Animal Drug User Fee Rates and Payment Procedures for Fiscal Year 2011

Federal Register 2010, 2011, 2012, 2013, 2014

2010-08-03

... available to you after you submit a cover sheet. Click the ``Pay Now'' button.) On your check, bank draft... 2011, FDA is assuming that the number of applications that will pay fees in FY 2011 will equal the... applications subject to the criteria set forth is section 512(d)(4) of the act which pay half of the full fee...

Confused about Fusion? Weed Your Science Collection with a Pro.

ERIC Educational Resources Information Center

O'Dell, Charli

1998-01-01

Provides guidelines on weeding science collections in junior high/high school libraries. Highlights include checking copyright dates, online sources, 13 science subject areas that deserve special consideration (plate tectonics, fission, fusion, radioactive dating, weather/climate, astronomy/space science, elements, integrated science,…

Effectiveness of integrated science instructional material on pressure in daily life theme to improve digital age literacy of students

NASA Astrophysics Data System (ADS)

Asrizal; Amran, A.; Ananda, A.; Festiyed; Khairani, S.

2018-04-01

Integrated science learning and literacy skills are relevant issues in Indonesian’s education. However, the use of the integrated science learning and the integration of literacy in learning cannot be implemented well. An alternative solution of this problem is to develop integrated science instructional material on pressure in daily life theme by integrating digital age literacy. Purpose of research is to investigate the effectiveness of the use of integrated science instructional material on pressure in daily life theme to improve knowledge competence, attitudes competence and literacy skills of students. This research was a part of development research which has been conducted. In the product testing stage of this research and development was used before and after design of treatment for one sample group. Instruments to collect the data consist of learning outcomes test sheet, attitude observation sheet, and performance assessment sheet of students. Data analysis techniques include descriptive statistics analysis, normality test, homogeneity test, and paired comparison test. Therefore, the important result of research is the use of integrated science instructional material on pressure in daily life theme is effective in scientific approach to improve knowledge competence, attitudes competence, and digital age literacy skills of grade VIII students at 95% confidence level.

On the Application of Science Systems Engineering and Uncertainty Quantification for Ice Sheet Science and Sea Level Projections

NASA Astrophysics Data System (ADS)

Schlegel, Nicole-Jeanne; Boening, Carmen; Larour, Eric; Limonadi, Daniel; Schodlok, Michael; Seroussi, Helene; Watkins, Michael

2017-04-01

Research and development activities at the Jet Propulsion Laboratory (JPL) currently support the creation of a framework to formally evaluate the observational needs within earth system science. One of the pilot projects of this effort aims to quantify uncertainties in global mean sea level rise projections, due to contributions from the continental ice sheets. Here, we take advantage of established uncertainty quantification tools embedded within the JPL-University of California at Irvine Ice Sheet System Model (ISSM). We conduct sensitivity and Monte-Carlo style sampling experiments on forward simulations of the Greenland and Antarctic ice sheets. By varying internal parameters and boundary conditions of the system over both extreme and credible worst-case ranges, we assess the impact of the different parameter ranges on century-scale sea level rise projections. The results inform efforts to a) isolate the processes and inputs that are most responsible for determining ice sheet contribution to sea level; b) redefine uncertainty brackets for century-scale projections; and c) provide a prioritized list of measurements, along with quantitative information on spatial and temporal resolution, required for reducing uncertainty in future sea level rise projections. Results indicate that ice sheet mass loss is dependent on the spatial resolution of key boundary conditions - such as bedrock topography and melt rates at the ice-ocean interface. This work is performed at and supported by the California Institute of Technology's Jet Propulsion Laboratory. Supercomputing time is also supported through a contract with the National Aeronautics and Space Administration's Cryosphere program.

A generalized vortex theory of the screw propeller and its application

NASA Technical Reports Server (NTRS)

Reissner, Hans

1940-01-01

The vortex theory as presented by the author in earlier papers has been extended to permit the solution of the following problems: (1) the investigation of the relation between thrusts and torque distribution and energy loss as given by the induction of helical vortex sheets and by the parasite drag; (2) the checking of the theorem of Betz of the rigidly behaving helical vortex sheet of minimum induced energy loss; (3) the extension of the theory of the screw propeller of minimum energy loss for the inclusion of parasite-drag distribution along the blades. A simple system of diagrams has been developed to systematize the design of airplane propellers for a wide range of parasite-drag distribution along the blades.

Cryosphere Science Outreach using the Ice Sheet System Model and a Virtual Ice Sheet Laboratory

NASA Astrophysics Data System (ADS)

Cheng, D. L. C.; Halkides, D. J.; Larour, E. Y.

2015-12-01

Understanding the role of Cryosphere Science within the larger context of Sea Level Rise is both a technical and educational challenge that needs to be addressed if the public at large is to trulyunderstand the implications and consequences of Climate Change. Within this context, we propose a new approach in which scientific tools are used directly inside a mobile/website platform geared towards Education/Outreach. Here, we apply this approach by using the Ice Sheet System Model, a state of the art Cryosphere model developed at NASA, and integrated within a Virtual Ice Sheet Laboratory, with the goal is to outreach Cryospherescience to K-12 and College level students. The approach mixes laboratory experiments, interactive classes/lessons on a website, and a simplified interface to a full-fledged instance of ISSM to validate the classes/lessons. This novel approach leverages new insights from the Outreach/Educational community and the interest of new generations in web based technologies and simulation tools, all of it delivered in a seamlessly integrated web platform. This work was performed at the California Institute of Technology's Jet Propulsion Laboratory undera contract with the National Aeronautics and Space Administration's Cryosphere Science Program.

Schoolyard Science. Grades 2-4.

ERIC Educational Resources Information Center

Perdue, Peggy K.

This book includes 25 science activities in the fields of environmental science, soil science, life science, and physical science. The activities are designed to be used in outdoor settings. Each activity is composed of two parts--an explanatory section for the teacher and a student lab sheet. The teacher explanatory section begins with a brief…

Propagation of large amplitude Alfven waves in the solar wind neutral sheet

NASA Technical Reports Server (NTRS)

Malara, F.; Primavera, L.; Veltri, P.

1995-01-01

Analysis of solar wind fluctuation data show that the correlation between velocity and magnetic field fluctuations decreases when going farther away from the Sun. This decorrelation can be attributed either to the time evolution of the fluctuations, carried away by the solar wind, or to the interaction between the solar wind neutral sheet and Alfven waves. To check this second hypothesis we have numerically studied the propagation of Alfven waves in the solar wind neutral sheet. The initial conditions have been set up in order to guarantee B(exp 2) = const, so that the following numerical evolution is only due to the inhomogeneity in the background magnetic field. The analysis of the results shows that compressive structures are formed, mainly in the neutral sheet where they have been identified as pressure balanced structures, i.e., tangential discontinuities. Fast perturbations, which are also produced, have a tendency to leave the simulation domain, propagating also perpendicularly to the mean magnetic field. For this reason the level of fast perturbations is always smaller with respect to the previously cited plasma balanced structures, which are slow mode perturbations. A comparison between the numerical results and some particular observational issues is also presented.

Informal Science Experience, Attitudes, Future Interest in Science, and Gender of High-Ability Students: An Exploratory Study.

ERIC Educational Resources Information Center

Joyce, Beverly A.; Farenga, Stephen J.

1999-01-01

Examines specific science-related attitudes, informal science-related experiences, future interest in science, and gender of young high-ability students (n=111) who completed the Test of Science Related Attitudes (TOSRA), the Science Experience Survey (SES), and the Course Selection Sheet (CSS). Develops two regression models to predict the number…

Effects of random study checks and guided notes study cards on middle school special education students' notetaking accuracy and science vocabulary quiz scores

NASA Astrophysics Data System (ADS)

Wood, Charles L.

Federal legislation mandates that all students with disabilities have meaningful access to the general education curriculum and that students with and without disabilities be held equally accountable to the same academic standards (IDEIA, 2004; NCLB, 2001). Many students with disabilities, however, perform poorly in academic content courses, especially at the middle and secondary school levels. Previous research has reported increased notetaking accuracy and quiz scores over lecture content when students completed guided notes compared to taking their own notes. This study evaluated the effects of a pre-quiz review procedure and specially formatted guided notes on middle school special education students' learning of science vocabulary. This study compared the effects of three experimental conditions. (a) Own Notes (ON), (b) Own Notes+Random Study Checks (ON+RSC), and (c) Guided Notes Study Cards+Random Study Checks (GNSC+RSC) on each student's accuracy of notes, next-day quiz scores, and review quiz scores. Each session, the teacher presented 12 science vocabulary terms and definitions during a lecture and students took notes. The students were given 5 minutes to study their notes at the end of each session and were reminded to study their notes at home and in study hall period. In the ON condition students took notes on a sheet of paper with numbered lines from 1 to 12. Just before each next-day quiz in the ON+RSC condition students used write-on response cards to answer two teacher-posed questions over randomly selected vocabulary terms from the previous day's lecture. If the answer on a randomly selected student's response card was correct, that student earned a lottery ticket for inexpensive prizes and a quiz bonus point for herself and each classmate. In the GNSC+RSC condition students took notes on specially formatted guided notes that after the lecture they cut into a set of flashcards that could used for study. The students' mean notetaking accuracy was 75% during ON, 89% during ON+RSC, and 99.5% during GNSC+RSC. The class mean scores on next-day quizzes during ON, ON+RSC, and GNSC+RSC was 39%, 68%, and 90%, respectively. The class mean score on review quizzes following ON, ON+RSC, and GNSC+RSC was 2.1, 5.3, and 7.8 (maximum score, 10), respectively. Results for five of the seven students provide convincing evidence of functional relationships between ON+RSC and higher quiz scores compared to ON and between GNSC+RSC and higher quiz scores compared to ON+RSC. Students', teachers', and parents' opinions regarding the RSC and GNSC procedures were highly favorable.

Basic Skills--Identifying and Meeting Needs. Information for People Who Give Advice on Courses, Careers and Employment

ERIC Educational Resources Information Center

Basic Skills Agency, 2007

2007-01-01

There are very few jobs today that do not require basic literacy and numeracy skills. Even when the job itself is manual, employees need to read health and safety notices, fill in a job sheet and check their pay and overtime hours. Service industry jobs place even more demands on the workforce, with their emphasis on efficiently and rapidly…

Life sciences payload definition and integration study, task C and D. Volume 4: Preliminary equipment item specification catalog

NASA Technical Reports Server (NTRS)

1973-01-01

A specification catalog to define the equipment to be used for conducting life sciences experiments in a space laboratory is presented. The specification sheets list the purpose of the equipment item, and any specific technical requirements which can be identified. The status of similar hardware for ground use is stated with comments regarding modifications required to achieve spaceflight qualified hardware. Pertinent sketches, commercial catalog sheets, or drawings of the applicable equipment are included.

Seeking more Opportunities of Check Dams' harmony with nearby Circumstances via Design Thinking Process

NASA Astrophysics Data System (ADS)

Lin, Huan-Chun; Chen, Su-Chin; Tsai, Chen-Chen

2014-05-01

The contents of engineering design should indeed contain both science and art fields. However, the art aspect is too less discussed to cause an inharmonic impact with natural surroundings, and so are check dams. This study would like to seek more opportunities of check dams' harmony with nearby circumstances. According to literatures review of philosophy and cognition science fields, we suggest a thinking process of three phases to do check dams design work for reference. The first phase, conceptualization, is to list critical problems, such as the characteristics of erosion or deposition, and translate them into some goal situations. The second phase, transformation, is to use cognition methods such as analogy, association and metaphors to shape an image and prototypes. The third phase, formation, is to decide the details of the construction, such as stable safety analysis of shapes or materials. According to the previous descriptions, Taiwan's technological codes or papers about check dam design mostly emphasize the first and third phases, still quite a few lacks of the second phase. We emphases designers shouldn't ignore any phase of the framework especially the second one, or they may miss some chances to find more suitable solutions. Otherwise, this conceptual framework is simple to apply and we suppose it's a useful tool to design a more harmonic check dam with nearby natural landscape. Key Words: check dams, design thinking process, conceptualization, transformation, formation.

Checks and balances: the welcomed tension between philosophy and science.

PubMed

Watson, Jamie Carlin; Arp, Robert

2008-03-01

There is a tension between science and philosophy, but this tension need not engender enmity or derision. Scientists and philosophers can work together, and we argue that working together is beneficial to both, even if it is sometimes uncomfortable. We offer examples of how philosophy can autonomously and effectively inform scientific practice. Science and philosophy share certain methodological concerns and practices; therefore, scientists who disregard philosophy are vulnerable to critical conceptual mistakes. If our arguments are correct, and if it can also be shown that science informs philosophy, then, while it is possible for both disciplines to operate autonomously, each should welcome the checks and balances that each provides for one another in the investigation and explanation of reality.

Proof Checking the RSA (Rivest, Shamir and Adleman) Public Key Encryption Algorithm.

DTIC Science & Technology

1982-09-01

Pt- R136 626 PROOF CHECKING THE RSA (RIVEST SNAMIR AND ADLENRN) 1/i PUBLIC KEY ENCRYPTION.. (U) TEXAS UNIV AT AUSTIN INST FOR COMPUTING SCIENCE AND...Austin, Texas 78712 Ir t1 CONTROLLING OFFICE NAME AND ADDRESS 12. REPORT DATE - Software Systems Science Office of Naval Research September. 1982...properties are proved in [11. The third property is not proved; instead the authors of [li) argue that "all the obvious approaches to breaking our system are

ACS Science Data Buffer Check/Self-Tests for CS Buffer RAM and MIE RAM

NASA Astrophysics Data System (ADS)

Balzano, V.

2001-07-01

The ACS Science Buffer RAM is checked for bit flips during SAA passages. This is followed by a Control Section {CS} self-test consisting of writing/reading a specified bit pattern from each memory location in Buffer RAM and a similar test for MIE RAM. The MIE must be placed in BOOT mode for its self-test. The CS Buffer RAM self-test as well as the bit flip tests are all done with the CS in Operate.

COS Side 2 Science Data Buffer Check/Self-Tests for CS Buffer RAM and DIB RAM

NASA Astrophysics Data System (ADS)

Bacinski, John

2013-10-01

The COS Science Buffer RAM is checked for bit flips during SAA passages. This is followed by a Control Section {CS} self-test consisting of writing/reading a specified bit pattern from each memory location in Buffer RAM and a similar test for DIB RAM. The DIB must be placed in BOOT mode for its self-test. The CS Buffer RAM self-test as well as the bit flip tests are all done with the CS in Operate.

ACS Science Data Buffer Check/Self-Tests for CS Buffer RAM and MIE RAM

NASA Astrophysics Data System (ADS)

Welty, Alan

2005-07-01

The ACS Science Buffer RAM is checked for bit flips during SAA passages. Thisis followed by a Control Section {CS} self-test consisting of writing/reading a specified bit pattern from each memory location in Buffer RAM and a similar test for MIE RAM. The MIE must be placed in BOOT mode for its self-test. The CS Buffer RAM self-test as well as the bit flip tests are all done with the CS in Operate.

A new research project on the interaction of the solid Earth and the Antarctic Ice Sheet

NASA Astrophysics Data System (ADS)

Fukuda, Y.; Nishijima, J.; Kazama, T.; Nakamura, K.; Doi, K.; Suganuma, Y.; Okuno, J.; Araya, A.; Kaneda, H.; Aoyama, Y.

2017-12-01

A new research project of "Grant-in-Aid for Scientific Research on Innovative Areas" funded by JSPS (Japan Society for the Promotion of Science) has recently been launched. The title of the project is "Giant reservoirs of heat/water/material: Global environmental changes driven by Southern Ocean and Antarctic Ice Sheet", and as a five years project, is aiming to establish a new research area for Antarctic environmental system science. The project consists of 7 research topics, including Antarctic ice sheet and Southern ocean sciences, new observation methodology, modeling and other interdisciplinary topics, and we are involved in the topic A02-2, "Interaction of the solid Earth and the Antarctic Ice Sheet". The Antarctic ice sheet, which relates to the global climate changes through the sea level rise and ocean circulation, is an essential element of the Earth system for predicting the future environment changes. Thus many studies of the ice sheet changes have been conducted by means of geomorphological, geological, geodetic surveys, as well as satellite gravimetry and satellite altimetry. For these studies, one of the largest uncertainties is the effects of GIA. Therefore, GIA as a key to investigate the interaction between the solid Earth and the ice sheet changes, we plan to conduct geomorphological, geological and geodetic surveys in the inland mountain areas and the coastal areas including the surrounding areas of a Japanese station Syowa in East Antarctica, where the in-situ data for constraining GIA models are very few. Combining these new observations with other in-site data, various satellite data and numerical modeling, we aim to estimating a precise GIA model, constructing a reliable ice melting history after the last glacial maximum and obtaining the viscoelastic structure of the Earth's interior. In the presentation, we also show the five years research plans as well. This study was partially supported by JSPS KAKENHI Grant No. 17H06321.

Nanomodified Carbon/Carbon Composites for Intermediate Temperature

DTIC Science & Technology

2007-08-31

Carbon nanofibers (CNF) are manufactured by Applied Sciences Inc ./Pyrograf® Products by pyrolytic decomposition of methane in the presence of iron-based...Using PT-30 Resin," Carbon 41 (5), 893 (2003). 7. PT-15 technical data sheet, Lonza Inc ., Fair Lawn, NJ. 8. M. L. Ramirez, et al, Poly. Degrad. & Stab...technical data sheet, Carbon Nanotechnologies, Houston, TX. 32. Advanced SiC NanoPowder technical data sheet, Alpha Materials, Inc ., St. Paul, MN. 33

Fuels planning: science synthesis and integration; social issues fact sheet 03: Developing personal responsibility for fuels reduction: More ways to catch and hold people's attention

Treesearch

Rocky Mountain Research Station USDA Forest Service

2004-01-01

Other fact sheets discuss the different types of information that are useful in explaining to property owners the importance of taking personal responsibility for fuels management on their land. However, for some property owners, new information is not enough-they may need more information in order to understand that change is necessary. This fact sheet discusses ways...

Philosophy and the practice of Bayesian statistics

PubMed Central

Gelman, Andrew; Shalizi, Cosma Rohilla

2015-01-01

A substantial school in the philosophy of science identifies Bayesian inference with inductive inference and even rationality as such, and seems to be strengthened by the rise and practical success of Bayesian statistics. We argue that the most successful forms of Bayesian statistics do not actually support that particular philosophy but rather accord much better with sophisticated forms of hypothetico-deductivism. We examine the actual role played by prior distributions in Bayesian models, and the crucial aspects of model checking and model revision, which fall outside the scope of Bayesian confirmation theory. We draw on the literature on the consistency of Bayesian updating and also on our experience of applied work in social science. Clarity about these matters should benefit not just philosophy of science, but also statistical practice. At best, the inductivist view has encouraged researchers to fit and compare models without checking them; at worst, theorists have actively discouraged practitioners from performing model checking because it does not fit into their framework. PMID:22364575

Philosophy and the practice of Bayesian statistics.

PubMed

Gelman, Andrew; Shalizi, Cosma Rohilla

2013-02-01

A substantial school in the philosophy of science identifies Bayesian inference with inductive inference and even rationality as such, and seems to be strengthened by the rise and practical success of Bayesian statistics. We argue that the most successful forms of Bayesian statistics do not actually support that particular philosophy but rather accord much better with sophisticated forms of hypothetico-deductivism. We examine the actual role played by prior distributions in Bayesian models, and the crucial aspects of model checking and model revision, which fall outside the scope of Bayesian confirmation theory. We draw on the literature on the consistency of Bayesian updating and also on our experience of applied work in social science. Clarity about these matters should benefit not just philosophy of science, but also statistical practice. At best, the inductivist view has encouraged researchers to fit and compare models without checking them; at worst, theorists have actively discouraged practitioners from performing model checking because it does not fit into their framework. © 2012 The British Psychological Society.

A 19-year radar altimeter elevation change time-series of the East and West Antarctic ice sheets

NASA Astrophysics Data System (ADS)

Sundal, A. V.; Shepherd, A.; Wingham, D.; Muir, A.; Mcmillan, M.; Galin, N.

2012-12-01

We present 19 years of continuous radar altimeter observations of the East and West Antarctic ice sheets acquired by the ERS-1, ERS-2, and ENVISAT satellites between May 1992 and September 2010. Time-series of surface elevation change were developed at 39,375 crossing points of the satellite orbit ground tracks using the method of dual cycle crossovers (Zwally et al., 1989; Wingham et al., 1998). In total, 46.5 million individual measurements were included in the analysis, encompassing 74 and 76 % of the East and West Antarctic ice sheet, respectively. The satellites were cross-calibrated by calculating differences between elevation changes occurring during periods of mission overlap. We use the merged time-series to explore spatial and temporal patterns of elevation change and to characterise and quantify the signals of Antarctic ice sheet imbalance. References: Wingham, D., Ridout, A., Scharroo, R., Arthern, R. & Shum, C.K. (1998): Antarctic elevation change from 1992 to 1996. Science, 282, 456-458. Zwally, H. J., Brenner, A. C., Major, J. A., Bindschadler, R. A. & Marsh, J. G. (1989): Growth of Greenland ice-sheet - measurements. Science, 246, 1587-1589.

Fuels planning: science synthesis and integration; social issues fact sheet 09: Benefits of collaboration

Treesearch

Christine Esposito

2006-01-01

Wildland fire professionals at the Federal, State, and local levels have a long tradition of collaborating across agencies and jurisdictions to achieve goals that they could not achieve independently. This fact sheet discusses the reasons and resources for collaboration.Other...

A Model of Low Grazing Angle Sea Clutter for Coherent Radar Performance Analysis

DTIC Science & Technology

2013-06-01

Navy Communications & Information Warfare Doc. Data Sheet Director General Navy Certification and Safety Doc. Data Sheet Director General Submarine...Abstracts, US 1 Documents Librarian , The Center for Research Libraries, US 1 International Technology and Science Center (ITSC) Library 1 Spare Copies 4

Science Is an Action Word! Grades 1-3.

ERIC Educational Resources Information Center

Perdue, Peggy K.

This book includes 20 science activities in the fields of scientific method, earth science, life science, and physical science. Each activity is composed of two parts--an explanatory section for the teacher and a student lab sheet. The explanatory section begins with a brief introduction designed to give an overview of the activity's main concept.…

Replication and robustness in developmental research.

PubMed

Duncan, Greg J; Engel, Mimi; Claessens, Amy; Dowsett, Chantelle J

2014-11-01

Replications and robustness checks are key elements of the scientific method and a staple in many disciplines. However, leading journals in developmental psychology rarely include explicit replications of prior research conducted by different investigators, and few require authors to establish in their articles or online appendices that their key results are robust across estimation methods, data sets, and demographic subgroups. This article makes the case for prioritizing both explicit replications and, especially, within-study robustness checks in developmental psychology. It provides evidence on variation in effect sizes in developmental studies and documents strikingly different replication and robustness-checking practices in a sample of journals in developmental psychology and a sister behavioral science-applied economics. Our goal is not to show that any one behavioral science has a monopoly on best practices, but rather to show how journals from a related discipline address vital concerns of replication and generalizability shared by all social and behavioral sciences. We provide recommendations for promoting graduate training in replication and robustness-checking methods and for editorial policies that encourage these practices. Although some of our recommendations may shift the form and substance of developmental research articles, we argue that they would generate considerable scientific benefits for the field. (PsycINFO Database Record (c) 2014 APA, all rights reserved).

Gondola for High Altitude Planetary Science (GHAPS)

NASA Technical Reports Server (NTRS)

Hoffmann, Monica

2017-01-01

Description of the NASA Gondola for High Altitude Planetary Science (GHAPS) balloon project and its planetary science capabilities provided in a poster or fact sheet format as needed. The ability of GHAPS to provide a re-useable platform to collect planetary information is described.

Exploring the Moon: A teacher's guide with activities for Earth and space sciences

NASA Technical Reports Server (NTRS)

Taylor, G. Jeffrey; Martel, Linda M. V.; Bays, Brooks G., Jr.

1994-01-01

This guide contains educational materials designed for use in upper elementary through high schools with the Lunar Sample Disk. A set of thirty-six 35-mm slides complements the activities in this guidebook. The book contains: (1) information on the Lunar Sample Disk; (2) a curriculum content matrix; (3) a teacher's guide; (4) moon ABC's fact sheet; (5) rock ABC's fact sheet; (6) progress in Lunar Science chart; (7) seventeen activities; (8) a resource section for each unit; (9) a glossary; and (10) a list of NASA educational resources.

Advanced Technological Education Survey 2012 Fact Sheet

ERIC Educational Resources Information Center

Wingate, Lori; Smith, Corey; Westine, Carl; Gullickson, Arlen

2012-01-01

This fact sheet summarizes data gathered in the 2012 survey of National Science Foundation (NSF) Advanced Technological Education (ATE) grant recipients. Conducted by EvaluATE, the evaluation resource center for the ATE program located at The Evaluation Center at Western Michigan University, this was the thirteenth annual survey of ATE projects…

Fuels planning: science synthesis and integration; social issues fact sheet 10: Stages of collaboration

Treesearch

Christine Esposito

2006-01-01

Collaboration is a powerful tool for improving both the management of wildland fire and the overall health of forests and other elements of fire-dependent ecosystems. This fact sheet discusses seven stages that are typical of most collaborations.Other publications in this...

Fuels planning: science synthesis and integration; social issues fact sheet 12: Keys to successful collaboration

Treesearch

Christine Esposito

2006-01-01

Collaborating on fire and fuels management with a host of public and private partners may seem like an impossible undertaking, and presents many challenges. This fact sheet reviews tips for what to focus on as you embark on a collaborative fuels management project.Other...

Fuels planning: science synthesis and integration; forest structure and fire hazard fact sheet 02: fire hazard

Treesearch

Rocky Mountain Research Station USDA Forest Service

2004-01-01

Fire hazard reflects the potential fire behavior and magnitude of effects as a function of fuel conditions. This fact sheet discusses crown fuels, surface fuels, and ground fuels and their contribution and involvement in wildland fire.Other publications in this series...

Fuels planning: science synthesis and integration; social issues fact sheet 06: Important considerations for communicating about hazards

Treesearch

Rocky Mountain Research Station USDA Forest Service

2004-01-01

Effective public education and communication campaigns about wildland fire and fuels management should have clear objectives, and use the right techniques to achieve these objectives. This fact sheet lists seven important considerations for planning or implementing a hazard communication effort.

Fuels planning: science synthesis and integration; social issues fact sheet 16: Prescribed fire and visual quality

Treesearch

Christine Esposito

2006-01-01

Research shows that, while prescribed burning and other fuels treatments can lower visual quality in some situations, they can also improve it in others. This fact sheet reviews the visual aspects of different levels of prescribed burning.Other publications in this series...

Fuels planning: science synthesis and integration; economic uses fact sheet 01: mastication treatments and costs

Treesearch

Rocky Mountain Research Station USDA Forest Service

2004-01-01

Mastication, or mulching, is a mechanical fuel treatment that changes the structure and size of fuels in the stand. This fact sheet describes the kinds of equipment available, where mastication should be used, and treatment factors affecting cost.Other publications in this...

Advanced Technological Education Survey 2009 Fact Sheet

ERIC Educational Resources Information Center

Wingate, Lori; Gullickson, Arlen

2009-01-01

This fact sheet summarizes data gathered in the 2009 survey of National Science Foundation (NSF) Advanced Technological Education (ATE) grant recipients. Conducted by The Evaluation Center at Western Michigan University, this was the tenth annual survey of ATE projects and centers. Included here are statistics about the program's grantees and…

Advanced Technological Education Program Fact Sheet, June 2007

ERIC Educational Resources Information Center

Ritchie, Liesel A.; Gullickson, Arlen R.; Wygant, Barbara

2007-01-01

This fact sheet summarizes data gathered in the 2007 annual survey for the National Science Foundation's (NSF) Advanced Technological Education (ATE) program. This was the eighth annual survey of ATE projects and centers conducted by The Evaluation Center at Western Michigan University. Included here are statistics about the program's grantees and…

Advanced Technological Education Program 2008 Survey Fact Sheet

ERIC Educational Resources Information Center

Gullickson, Arlen R.; Wingate, Lori A.

2008-01-01

This fact sheet summarizes data gathered in the 2008 survey of National Science Foundation (NSF) Advanced Technological Education (ATE) grant recipients. Conducted by The Evaluation Center at Western Michigan University, this was the ninth annual survey of ATE projects and centers. Included here are statistics about the program's grantees and…

Advanced Technological Education Survey 2011 Fact Sheet

ERIC Educational Resources Information Center

Wingate, Lori; Westine, Carl; Gullickson, Arlen

2011-01-01

This fact sheet summarizes data gathered in the 2011 survey of National Science Foundation (NSF) Advanced Technological Education (ATE) grant recipients. Conducted by EvaluATE, the evaluation resource center for the ATE program located at The Evaluation Center at Western Michigan University, this was the twelfth annual survey of ATE projects and…

Advanced Technological Education Survey 2010 Fact Sheet

ERIC Educational Resources Information Center

Wingate, Lori; Westine, Carl; Gullickson, Arlen

2010-01-01

This fact sheet summarizes data gathered in the 2010 survey of National Science Foundation (NSF) Advanced Technological Education (ATE) grant recipients. Conducted by EvaluATE, the evaluation resource center for the ATE program located at The Evaluation Center at Western Michigan University, this was the eleventh annual survey of ATE projects and…

Glucosamine and Chondroitin for Osteoarthritis

MedlinePlus

... sheet Osteoarthritis and Complementary Health Approaches . What the Science Says About Glucosamine and Chondroitin for Osteoarthritis For ... months as those who received placebo. What the Science Says About Safety and Side Effects No serious ...

Supercritical fluid extraction of bi & multi-layer graphene sheets from graphite by using exfoliation technique

NASA Astrophysics Data System (ADS)

Xavier, Gauravi; Dave, Bhoomi; Khanna, Sakshum

2018-05-01

In recent times, researchers have turned to explore the possibility of using Supercritical Fluid (SCFs) system to penetrate into the inert-gaping of graphite and exfoliate it into a number of layer graphene sheets. The supercritical fluid holds excellent wetting surfaces with low interfacial tension and high diffusion coefficients. Although SCFs exfoliation approach looks promising to developed large scale & low-cost graphene sheet but has not received much attention. To arouse interest and reflection on this approach, this review is organized to summarize the recent progress in graphene production by SCF technology. Here we present the simplest route to obtained layers of graphene sheets by intercalating and exfoliating graphite using supercritical CO2 processing. The layers graphene nano-sheets were collected in dichloromethane (DCM) solution which prevents the restocking of sheets. The obtained graphene sheets show the desired characteristics and thus can be used in physical, chemical and biological sciences. Thus this method provides an effortless and eco-friendly approach for the synthesis of layers of graphene sheets.

The study of fix composite panel and steel plates on testing stand

NASA Astrophysics Data System (ADS)

Wróbel, A.; Płaczek, M.; Wachna, M.

2016-08-01

In this paper the practical possibilities of strength verification analysis of composite materials used in the manufacture of selected components of railway wagons are presented. Real laboratory stand for measurements in a scale controlled by PLC controller were made. The study of different types of connections of composite materials with sheet metal is presented. In one of the chapter of this paper principles construction of testing stand with pneumatic cylinder were presented. Mainly checking of displacements and stresses generated on the sheet as a result of pneumatic actuators load for composite boards was carried out. The use of the controller with operating panel allows to easy programming testing cycle. The user can define the force generated by the actuator by change of air pressure in cylinder. Additionally the location of acting cylinders and their jump can be changed by operator. The examination of the volume displacements was done by displacement sensor, and the tensile strain gauge. All parameters are written in CatmanEasy - data acquisition software. This article presents the study of stresses and displacements in the composite plates joined with sheet metal, in summary of this article, the authors compare the obtained results with the computer simulation results in the article: "Simulation of stresses in an innovative combination of composite with sheet".

COS Science Data Buffer Check/Self-Tests for CS Buffer RAM and DIB RAM

NASA Astrophysics Data System (ADS)

Welty, Alan

2009-07-01

The COS Science Buffer RAM is checked for bit flips during SAA passages. This is followed by a Control Section {CS} self-test consisting of writing/reading a specified bit pattern from each memory location in Buffer RAM and a similar test for DIB RAM. The DIB must be placed in BOOT mode for its self-test. The CS Buffer RAM self-test as well as the bit flip tests are all done with the CS in Operate.Supports Activity COS-03

Serials Management by Microcomputer: The Potential of DBMS.

ERIC Educational Resources Information Center

Vogel, J. Thomas; Burns, Lynn W.

1984-01-01

Describes serials management at Philadelphia College of Textiles and Science library via a microcomputer, a file manager called PFS, and a relational database management system called dBase II. Check-in procedures, programing with dBase II, "static" and "active" databases, and claim procedures are discussed. Check-in forms are…

Nature of science in instruction materials of science through the model of educational reconstruction

NASA Astrophysics Data System (ADS)

Azizah, Nur; Mudzakir, Ahmad

2016-02-01

The study was carried out to reconstruct the science teaching materials charged view of the nature of science (VNOS). This reconstruction process using the Model of Educational Reconstruction (MER), which is the framework for research and development of science education as well as a guide for planning the teaching of science in the schools is limited in two stages, namely: content structure analysis, and empirical studies of learners. The purpose of this study is to obtain a pre-conception of learners and prospective scientists to the topic of the nature of the material and utilization. The method used to descriptive with the instruments is guidelines for interviews for 15 students of class VIII, text analysis sheet, sheet analysis of the concept, and the validation sheet indicators and learning objectives NOS charged on cognitive and affective aspects. The results obtained in the form of pre-conceptions of learners who demonstrate almost 100% of students know the types of materials and some of its nature, the results of the scientist's perspective on the topic of the nature of the material and its use, as well as the results of the validation indicators and learning objectives charged NOS and competencies PISA 2015 cognitive and affective aspects with CVI value of 0.99 and 1.0 after being validated by five experts. This suggests that the indicators and the resulting learning objectives feasible and can proceed to the reconstruction of teaching materials on the topic of material properties and utilization.

77 FR 38273 - Science Advisory Board; Meeting

Federal Register 2010, 2011, 2012, 2013, 2014

2012-06-27

... Administration (NOAA) science programs are of the highest quality and provide optimal support to resource... Environmental Laboratory, 7600 Sand Point Way NE., Seattle, Washington 98115. Please check the SAB Web site http...

Fabrication of micro metallic valve and pump

NASA Astrophysics Data System (ADS)

Yang, Ming; Kabasawa, Yasunari; Ito, Kuniyoshi

2010-03-01

Fabrication of micro devices by using micro metal forming was proposed by the authors. We developed a desktop servo-press machine with precise tooling system. Precise press forming processes including micro forging and micro joining has been carried out in a progressive die. In this study, micro metallic valve and pump were fabricated by using the precise press forming. The components are made of sheet metals, and assembled in to a unit in the progressive die. A micro check-valve with a diameter of 3mm and a length of 3.2mm was fabricated, and the property of flow resistance was evaluated. The results show that the check valve has high property of leakage proof. Since the valve is a unit parts with dimensions of several millimeters, it has advantage to be adapted to various pump design. Here, two kinds of micro pumps with the check-valves were fabricated. One is diaphragm pump actuated by vibration of the diaphragm, and another is tube-shaped pump actuated by resonation. The flow quantities of the pumps were evaluated and the results show that both of the pumps have high pumping performance.

Low-cost and high-speed optical mark reader based on an intelligent line camera

NASA Astrophysics Data System (ADS)

Hussmann, Stephan; Chan, Leona; Fung, Celine; Albrecht, Martin

2003-08-01

Optical Mark Recognition (OMR) is thoroughly reliable and highly efficient provided that high standards are maintained at both the planning and implementation stages. It is necessary to ensure that OMR forms are designed with due attention to data integrity checks, the best use is made of features built into the OMR, used data integrity is checked before the data is processed and data is validated before it is processed. This paper describes the design and implementation of an OMR prototype system for marking multiple-choice tests automatically. Parameter testing is carried out before the platform and the multiple-choice answer sheet has been designed. Position recognition and position verification methods have been developed and implemented in an intelligent line scan camera. The position recognition process is implemented into a Field Programmable Gate Array (FPGA), whereas the verification process is implemented into a micro-controller. The verified results are then sent to the Graphical User Interface (GUI) for answers checking and statistical analysis. At the end of the paper the proposed OMR system will be compared with commercially available system on the market.

Ice, Ice, Baby: A Program for Sustained, Classroom-Based K-8 Teacher Professional Development

NASA Astrophysics Data System (ADS)

Hamilton, C.

2009-12-01

Ice, Ice, Baby is a K-8 science program created by the education team at the Center for the Remote Sensing of Ice Sheets (CReSIS), an NSF-funded science and technology center headquartered at the University of Kansas. The twenty-four hands-on activities, which constitute the Ice, Ice, Baby curriculum, were developed to help students understand the role of polar ice sheets in sea level rise. These activities, presented in classrooms by CReSIS' Educational Outreach Coordinator, demonstrate many of the scientific properties of ice, including displacement and density. Student journals are utilized with each lesson as a strategy for improving students' science process skills. Journals also help the instructor identify misconceptions, assess comprehension, and provide students with a year-long science reference log. Pre- and post- assessments are given to both teachers and students before and after the program, providing data for evaluation and improvement of the Ice, Ice, Baby program. While students are actively engaged in hands-on learning about the unusual topics of ice sheets, glaciers, icebergs and sea ice, the CReSIS' Educational Coordinator is able to model best practices in science education, such as questioning and inquiry-based methods of instruction. In this way, the Ice, Ice, Baby program also serves as ongoing, in-class, professional development for teachers. Teachers are also provided supplemental activities to do with their classes between CReSIS' visits to encourage additional science lessons, reinforce concepts taught in the Ice, Ice, Baby program, and to foster teachers' progression toward more reform-based science instruction.

CLOSSS: A Machine Readable Data Base of Social Science Serials, Progress Report, 1971-1972. Working Paper No. 8.

ERIC Educational Resources Information Center

Roberts, S. A.; Bradshaw, R. G.

Deisgn of Information Systems in the Social Sciences (DISISS) is a research project conducted to describe the main characteristics of the literature of the social sciences using bibliometric techniques. A comprehensive machine readable file of social science serials was developed which is called CLOSSS (Check List of Social Science Serials). Data…

National Program for Inspection of Non-Federal Dams. Site Number 1, Dead River Dam (NH 00473) Androscoggin River Basin, Berlin, New Hampshire. Phase I inspection Report.

DTIC Science & Technology

1979-07-01

DEPARTMENT OF AGRICULTURE SCS-522 R(V 5-58 SOIL CONSERVATION SERVICE S7ATE PROJECT . .p,STI AT ,L< A.lv F . ’ f D \\v, r.P, r/. S ’E l I’""" " Y ,TE ICHECKED ...AGRICULTURE SCS-522 REV 5-58 SOIL CONSERVATION SERVICE £Go 0. 01 - 19645 STATE VF-PROJECT DA UFr FAD _L. v ,. I - , " BY DATE iCHECKED BY DATE JOB NO. t... iCHECK ’D L3 ATE JOS NU. SUBJECTEi’ElA GENCY .5FILL WAY CX 7-,LOP6 VE L. SHEET OF C 1IT CALOUTLETC HANNEL 5 LO rI- _ ..f E B =/c k D F 7 -. ) "/ -O . 0

Principles of continuous quality improvement applied to intravenous therapy.

PubMed

Dunavin, M K; Lane, C; Parker, P E

1994-01-01

Documentation of the application of the principles of continuous quality improvement (CQI) to the health care setting is crucial for understanding the transition from traditional management models to CQI models. A CQI project was designed and implemented by the IV Therapy Department at Lawrence Memorial Hospital to test the application of these principles to intravenous therapy and as a learning tool for the entire organization. Through a prototype inventory project, significant savings in cost and time were demonstrated using check sheets, flow diagrams, control charts, and other statistical tools, as well as using the Plan-Do-Check-Act cycle. As a result, a primary goal, increased time for direct patient care, was achieved. Eight hours per week in nursing time was saved, relationships between two work areas were improved, and $6,000 in personnel costs, storage space, and inventory were saved.

Performance analysis of automobile radiator using carboxyl graphene nanofluids

NASA Astrophysics Data System (ADS)

Rao Ponangi, Babu; Sumanth, S.; Krishna, V.; Seetharam, T. R.; Seetharamu, K. N.

2018-04-01

A feasible solution to increase the effectiveness of the radiator will be the use of stabilized nanofluid. A mixture of small amount of solid particle, whose size is less than 100nm in the fluid phase, is termed as nanofluid. In current work, a small concentration of carboxyl-graphene nanostructure sheets/flakes are used as the solid medium, where conventional Ethylene glycol is used as the fluid medium. Visible checking method has been adopted, to check the stability of the nanofluid. The results showed the promising level of improvement in the values of Nusselt number and Effectiveness of the radiator, without changing the actual design of radiator. Examination of Pressure drop shows, a very small increase in its value even though the nanofluid has been used. About 19% improvement in the value of Effectiveness has been achieved at very small concentrations.

Agricultural Science I. Supplementary Units. Instructor Information.

ERIC Educational Resources Information Center

Martin, Donna; And Others

These supplementary units are designed to help students with special needs learn and apply agricultural skills in the areas of animal breeding, animal nutrition, leadership, and power tools. Specific competencies are listed as study questions at the beginning of each of the 10 self-paced and self-contained units. Skill sheets, activity sheets, and…

Fuels planning: science synthesis and integration; social issues fact sheet 07: The "laws" of effective public education about fire hazards

Treesearch

Rocky Mountain Research Station USDA Forest Service

2004-01-01

Within the past 10 years, breakthrough research has identified factors that are most important for effectively communicating about wildland fire hazards. This fact sheet discusses seven "Laws" of effective public communication that should be considered in any state-of-the-art education campaign.

Fuels planning: science synthesis and integration; economic uses fact sheet 07: markets and log prices

Treesearch

Rocky Mountain Research Station USDA Forest Service

2004-01-01

Markets and prices for logs vary widely across the West, fluctuating from place to place in response to regional variables and hauling costs. This fact sheet discusses those variables, locality of log markets, markets for low-value logs, and caveats to consider when using My Fuel Treatment Planner.

Effects of Environmental Stress on Individual Decision Making

DTIC Science & Technology

1987-12-15

disciplines including medicine, economics, education, political science , engineering, geography , marketing, management science and psychology. Research in...ORGANIZATION NAME(S) AND ADDRESS(ES) Uniformed Services University Of The Health Sciences Bethesda, MD 20814 8. PERFORMING ORGANIZATION REPORT NUMBER 9...UNIVERSITY OF THE HEALTH SCIENCES F. EDWARD HEBERT SCHOOL OF MEDICINE 4301 JONES BRIDGE ROAD BETHESDA, MARYLAND 20814-4799 APPROVAL SHEET

Variation of the conductance enhancement at BaSnO3/LaInxGa1-xO3 polar Interface

NASA Astrophysics Data System (ADS)

Kim, Young Mo; Shin, Juyeon; Kim, Youjung; Char, Kookrin

We have recently reported that La-doped BaSnO3 (BLSO) displayed conductance enhancement by more than 104 times when LaInO3 (LIO) layer was grown on top of the BLSO layer. The conductance enhancement implies the two-dimensional electron gas (2DEG) formation at the interface. To identify the origin of the conductance enhancement, we developed other heterostructures based on different overlayers. Since LaGaO3 is also a polar perovskite like the LIO with its band gap of 4.4 eV and its lattice constant of 3.9, we investigated the variation of the conductance enhancement at LaIn1-xGaxO3 (LIGO)/BLSO interface while varying the Ga ratio. We first checked the interfacial epitaxial growth of LIGO on BSO by x-ray diffraction measurement and transmission electron microscopy. The sheet conductances of BLSO layer before and after the deposition of LIGO layer were measured. Putting together the structural and electrical properties of the LIGO/BLSO interfaces with various Ga compositions, we will discuss the origin of the conductance enhancement in terms of the strain-induced polarization in the LIGO layer. Samsung Science and Technology Foundation.

Mentorship of College Women in Science

ERIC Educational Resources Information Center

Khan, Samia

2008-01-01

A professor at a college for women recently was named a recipient of the U.S. Presidential Award for Excellence in Science, Mathematics, and Engineering Mentoring. Her innovations in mentoring college women in science are the focus of this case study. Using data collected from faculty interviews, classroom observations, student feedback sheets,…

76 FR 77240 - Office of Biotechnology Activities, Office of Science Policy, Office of the Director; Notice of...

Federal Register 2010, 2011, 2012, 2013, 2014

2011-12-12

... Activities, Office of Science Policy, Office of the Director; Notice of Meeting Pursuant to section 10(d) of... the National Science Advisory Board for Biosecurity (NSABB). The meeting will be closed to the public... check this site for updates. Name of Committee: National Science Advisory Board for Biosecurity. Date...

Whillans Ice Stream Subglacial Access Research Drilling (WISSARD): Integrative Study of Marine Ice Sheet Stability and Subglacial Life Habitats (Invited)

NASA Astrophysics Data System (ADS)

Tulaczyk, S. M.; Anandakrishnan, S.; Behar, A. E.; Christner, B. C.; Fisher, A. T.; Fricker, H. A.; Holland, D. M.; Jacobel, R. W.; Mikucki, J.; Mitchell, A. C.; Powell, R. D.; Priscu, J. C.; Scherer, R. P.; Severinghaus, J. P.

2009-12-01

The WISSARD project is a large, NSF-funded, interdisciplinary initiative focused on scientific drilling, exploration, and investigation of Antarctic subglacial aquatic environments. The project consists of three interrelated components: (1) LISSARD - Lake and Ice Stream Subglacial Access Research Drilling, (2) RAGES - Robotic Access to Grounding-zones for Exploration and Science, and (3) GBASE - GeomicroBiology of Antarctic Subglacial Environments). A number of previous studies in West Antarctica highlighted the importance of understanding ice sheet interactions with water, either at the basal boundary where ice streams come in contact with active subglacial hydrologic and geological systems or at the marine margin where the ice sheet is exposed to forcing from the global ocean and sedimentation. Recent biological investigations of Antarctic subglacial environments show that they provide a significant habitat for life and source of bacterial carbon in a setting that was previously thought to be inhospitable. Subglacial microbial ecosystems also enhance biogeochemical weathering, mobilizing elements from long term geological storage. The overarching scientific objective of WISSARD is to examine the subglacial hydrological system of West Antarctica in glaciological, geological, microbiological, geochemical, and oceanographic contexts. Direct sampling will yield seminal information on these systems and test the overarching hypothesis that active hydrological systems connect various subglacial environments and exert major control on ice sheet dynamics, subglacial sediment transfer, geochemistry, metabolic and phylogenetic diversity, and biogeochemical transformations and geological records of ice sheet history. Technological advances during WISSARD will provide the US-science community with a capability to access and study sub-ice sheet environments. Developing this technological infrastructure will benefit the broader science community and it will be available for future use. Furthermore, these projects will pioneer an approach implementing recommendations from the National Research Council committee on Principles of Environmental Stewardship for the Exploration and Study of Subglacial Environments.

Payload specialist Ronald Parise checks on ASTRO-2 payload

NASA Technical Reports Server (NTRS)

1995-01-01

Payload specialist Ronald A. Parise, a senior scientist in the Space Observatories Department of Computer Sciences Corporation (CSC), checks on the ASTRO-2 payload (out of frame in the cargo bay of the Space Shuttle Endeavour). Parise is on the aft flight deck of the Earth orbiting Endeavour during STS-67.

Science and Public Policy since World War II.

ERIC Educational Resources Information Center

Rossiter, Margaret W.

1985-01-01

Discusses: material/personnel shortages and surpluses around 1950; federal aid to nonmilitary research; loyalty oaths and security checks; rise of the behavioral sciences; science education, from the Cold War to creationism; antinuclear protests and the limited test ban treaty, 1954-1963; Sputnik and the space program; and health, safety, and…

Making Science Misconceptions Work for Us

ERIC Educational Resources Information Center

Elliott, Katrina; Pillman, Anne

2016-01-01

This paper explores strategies for teachers to work with science conceptions, both those consistent and those inconsistent with western science understanding. It emphasises the value of teachers checking their own and their students' prior understanding of concepts to be learnt. A past approach of educators has been to replace old beliefs with new…

New directions in the science and technology of advanced sheet explosive formulations and the key energetic materials used in the processing of sheet explosives: Emerging trends.

PubMed

Talawar, M B; Jangid, S K; Nath, T; Sinha, R K; Asthana, S N

2015-12-30

This review presents the work carried out by the international community in the area of sheet explosive formulations and its applications in various systems. The sheet explosive is also named as PBXs and is a composite material in which solid explosive particles like RDX, HMX or PETN are dispersed in a polymeric matrix, forms a flexible material that can be rolled/cut into sheet form which can be applied to any complex contour. The designed sheet explosive must possess characteristic properties such as flexible, cuttable, water proof, easily initiable, and safe handling. The sheet explosives are being used for protecting tanks (ERA), light combat vehicle and futuristic infantry carrier vehicle from different attacking war heads etc. Besides, sheet explosives find wide applications in demolition of bridges, ships, cutting and metal cladding. This review also covers the aspects such as risks and hazard analysis during the processing of sheet explosive formulations, effect of ageing on sheet explosives, detection and analysis of sheet explosive ingredients and the R&D efforts of Indian researchers in the development of sheet explosive formulations. To the best of our knowledge, there has been no review article published in the literature in the area of sheet explosives. Copyright © 2015 Elsevier B.V. All rights reserved.

Ironbound Community Citizen Science Toolbox Fact Sheet

EPA Pesticide Factsheets

EPA is partnering with Newark’s Ironbound Community Corporation (ICC) to design, develop, and pilot a Citizen Science Toolbox that will enable communities to collect their own environmental data and increase their ability to understand local conditions.

A scanning radar altimeter for mapping continental topography

NASA Technical Reports Server (NTRS)

Dixon, T. H.

1986-01-01

Topographic information constitutes a fundamental data set for the Earth sciences. In the geological and geophysical sciences, topography combined with gravitational information provides an important constraint on the structure and rheologic properties of the crust and lithosphere. Detailed topography data can also be used to map offsets associated with faulting and to reveal the effects of tectonic deformation. In the polar regions, elevation data form a crucial but as yet largely unavailable resource for studying ice sheet mass balance and ice flow dynamics. The vast Antarctic ice sheet is the largest fresh water reservoir on Earth and is an important influence on ocean circulation and global climate. However, our knowledge of its stability is so limited that we cannot even specify whether the Antarctic ice sheet is growing or shrinking. It is clear that there is need for high quality global topography data. A summary of potential applications with their resolution requirements is shown.

Numerical simulation of polyester coextrusion: Influence of the thermal parameters and the die geometry on interfacial instabilities

NASA Astrophysics Data System (ADS)

Mahdaoui, O.; Agassant, J.-F.; Laure, P.; Valette, R.; Silva, L.

2007-04-01

The polymer coextrusion process is a new method of sheet metal lining. It allows to substitute lacquers for steel protection in food packaging industry. The coextrusion process may exhibit flow instabilities at the interface between the two polymer layers. The objective of this study is to check the influence of processing and rheology parameters on the instabilities. Finite elements numerical simulations of the coextrusion allow to investigate various stable and instable flow configurations.

Training for the Infantry Fighting Vehicle-M2: An Evaluation of the 11M10 Course

DTIC Science & Technology

1981-10-30

selected partially because of the evaluator’s familiarity with the procedure, but primarily because of the short lead time for the IFV evaluation. Only...right. Hence the majority of comments are negative and may give a distorted picture of a class. In almost all classes, more things were right th.~n wrong...format guide to assure all areas were covered rather than as a traditional rating sheet. Negative checks were used to generate notes and conmments which

Fuels planning: science synthesis and integration; economic uses fact sheet 03: economic impacts of fuel treatments

Treesearch

Rocky Mountain Research Station USDA Forest Service

2004-01-01

With increased interest in reducing hazardous fuels in dry inland forests of the American West, agencies and the public will want to know the economic impacts of fuel reduction treatments. This fact sheet discusses the economic impact tool, a component of My Fuel Treatment Planner, for evaluating economic impacts.

Fuels planning: science synthesis and integration; forest structure and fire hazard fact sheet 04: role of silviculture in fuel treatments

Treesearch

Rocky Mountain Research Station USDA Forest Service

2004-01-01

The principal goals of fuel treatments are to reduce fireline intensities, reduce the potential for crown fires, improve opportunities for successful fire suppression, and improve forest resilience to forest fires. This fact sheet discusses thinning, and surface fuel treatments, as well as challenges associated with those treatments.

Fuels planning: science synthesis and integration; environmental consequences fact sheet 08: Evaluating sedimentation risks associated with fuel management

Treesearch

William Elliot; Pete Robichaud

2005-01-01

This fact sheet describes the sources of sediment in upland forest watersheds in the context of fuel management activities. It presents the dominant forest soil erosion processes, and the principles behind the new sediment delivery interface developed to aid in erosion analysis of fuel management projects.

Fuels planning: science synthesis and integration; social issues fact sheet 18: Issues affecting social acceptability of fuels treatments

Treesearch

Christine Esposito

2006-01-01

Researchers have tried to understand how information about forest management can influence a person's landscape preferences and aesthetic appreciation. These findings are relevant for fuels management projects, since these projects are often characterized by conflicts between aesthetic and ecological objectives. This fact sheet discusses different aspects and ways...

Fuels planning: science synthesis and integration; social issues fact sheet 11: Challenges to collaboration

Treesearch

Christine Esposito

2006-01-01

Bringing the right people into a collaborative process can be difficult. Potential collaborators must all feel they have something to gain to justify investing resources, sharing knowledge, and perhaps compromising on goals and actions. This fact sheet discusses some of the common challenges that individuals, communities, and institutions face in collaboration.

Fuels planning: science synthesis and integration; economic uses fact sheet 06: selection criteria analysis

Treesearch

Rocky Mountain Research Station USDA Forest Service

2004-01-01

Confidence in decisionmaking can often come from knowing if others in similar circumstances would choose the same management strategy. Researchers at the USDA FS Pacific Northwest Research Station and the University of Saskatchewan have developed a Selection Criteria Analysis for answering this very question. This fact sheet discusses factors affecting the choice of...

CONFERENCES AND SYMPOSIA Commemoration of the 85th birthday of S I Syrovatskii(Scientific session of the Physical Sciences Division of the Russian Academy of Sciences, 26 May 2010)

NASA Astrophysics Data System (ADS)

2010-12-01

A scientific session of the Physical Sciences Division, Russian Academy of Sciences (RAS), was held on 26 May 2010 at the conference hall of the Lebedev Physical Institute, RAS. The session was devoted to the 85th birthday of S I Syrovatskii. The program announced on the web page of the RAS Physical Sciences Division (www.gpad.ac.ru) contained the following reports: (1) Zelenyi L M (Space Research Institute, RAS, Moscow) "Current sheets and reconnection in the geomagnetic tail"; (2) Frank A G (Prokhorov General Physics Institute, RAS, Moscow) "Dynamics of current sheets as the cause of flare events in magnetized plasmas"; (3) Kuznetsov V D (Pushkov Institute of Terrestrial Magnetism, the Ionosphere, and Radio Wave Propagation, RAS, Troitsk, Moscow region) "Space research on the Sun"; (4) Somov B V (Shternberg Astronomical Institute, Lomonosov Moscow State University, Moscow) "Strong shock waves and extreme plasma states"; (5) Zybin K P (Lebedev Physical Institute, RAS, Moscow) "Structure functions for developed turbulence"; (6) Ptuskin V S (Pushkov Institute of Terrestrial Magnetism, the Ionosphere, and Radio Wave Propagation, RAS, Troitsk, Moscow region) "The origin of cosmic rays." Papers based on reports 1-4 and 6 are published in what follows. • Metastability of current sheets, L M Zelenyi, A V Artemyev, Kh V Malova, A A Petrukovich, R Nakamura Physics-Uspekhi, 2010, Volume 53, Number 9, Pages 933-941 • Dynamics of current sheets underlying flare-type events in magnetized plasmas, A G Frank Physics-Uspekhi, 2010, Volume 53, Number 9, Pages 941-947 • Space research of the Sun, V D Kuznetsov Physics-Uspekhi, 2010, Volume 53, Number 9, Pages 947-954 • Magnetic reconnection in solar flares, B V Somov Physics-Uspekhi, 2010, Volume 53, Number 9, Pages 954-958 • The origin of cosmic rays, V S Ptuskin Physics-Uspekhi, 2010, Volume 53, Number 9, Pages 958-961

Wide Strip Casting Technology of Magnesium Alloys

NASA Astrophysics Data System (ADS)

Park, W.-J.; Kim, J. J.; Kim, I. J.; Choo, D.

Extensive investigations relating to the production of high performance and low cost magnesium sheet by strip casting have been performed for the application to automotive parts and electronic devices. Research on magnesium sheet production technology started in 2004 by Research Institute of Industrial Science and Technology (RIST) with support of Pohang Iron and Steel Company (POSCO). POSCO has completed the world's first plant to manufacture magnesium coil. Another big project in order to develop wide strip casting technology for the automotive applications of magnesium sheets was started in succession.

A physical mechanism producing suprathermal populations and initiating substorms in the Earth's magnetotail

NASA Astrophysics Data System (ADS)

Sarafopoulos, D. V.

2008-06-01

We suggest a candidate physical mechanism, combining there dimensional structure and temporal development, which is potentially able to produce suprathermal populations and cross-tail current disruptions in the Earth's plasma sheet. At the core of the proposed process is the "akis" structure; in a thin current sheet (TCS) the stretched (tail-like) magnetic field lines locally terminate into a sharp tip around the tail midplane. At this sharp tip of the TCS, ions become non-adiabatic, while a percentage of electrons are accumulated and trapped: The strong and transient electrostatic electric fields established along the magnetic field lines produce suprathermal populations. In parallel, the tip structure is associated with field aligned and mutually attracted parallel filamentary currents which progressively become more intense and inevitably the structure collapses, and so does the local TCS. The mechanism is observationally based on elementary, almost autonomous and spatiotemporal entities that correspond each to a local thinning/dipolarization pair having duration of ~1 min. Energetic proton and electron populations do not occur simultaneously, and we infer that they are separately accelerated at local thinnings and dipolarizations, respectively. In one example energetic particles are accelerated without any dB/dt variation and before the substorm expansion phase onset. A particular effort is undertaken demonstrating that the proposed acceleration mechanism may explain the plasma sheet ratio Ti/Te≍7. All our inferences are checked by the highest resolution datasets obtained by the Geotail Energetic Particles and Ion Composition (EPIC) instrument. The energetic particles are used as the best diagnostics for the accelerating source. Near Earth (X≍10 RE) selected events support our basic concept. The proposed mechanism seems to reveal a fundamental building block of the substorm phenomenon and may be the basic process/structure, which is now missing, that might help explain the persistent, outstanding deficiencies in our physical description of magnetospheric substorms. The mechanism is tested, checked, and found consistent with substorm associated observations performed ~30 and 60 RE away from Earth.

Study Skills of Arts and Science College Students

ERIC Educational Resources Information Center

Sekar, J. Master Arul; Rajendran, K. K.

2015-01-01

The main objective of this study is to find out the level of study skills of arts and science college students. Study Skills Check List developed and standardized by Virginia University, Australia (2006) is used to collect the relevant data. The sample consists of 216 Government arts and science college students of Tiruchirappalli district, Tamil…

[Preliminary textual research on Zhijintang Sanctum re-revised version of Jinling edition of Ben cao gang mu (Compendium of Materia Medica)].

PubMed

Zheng, Jinsheng

2014-03-01

The Zhijintang Sanctum version of the re-revised edition of Jinling edition of Ben cao gang mu (Compendium of Materia Medica)collected by Zhao Huiyuan of Baihe, Henan Province in 2008 was opted as one of the third batch of the National Directory of Rare Ancient Worksin 2010. On the second cover page (patent page), it is recorded as"Original Jiangxi version". However, it is investigated to find that most of its paper sheets were reprinted after the original Jinling version, only scores of paper sheets were supplemented block-printed, including the additional block-printed second preface and Li Jianyuan's submitted report of the Jiangxi version, the re-revised time of which should be after the Jiangxi edition, or 1603. The exact time can be determined only by checking it carefully against another Jinling re-revised version (the Sheyuantang Sanctum edition).

Extraction and Analysis of Display Data

NASA Technical Reports Server (NTRS)

Land, Chris; Moye, Kathryn

2008-01-01

The Display Audit Suite is an integrated package of software tools that partly automates the detection of Portable Computer System (PCS) Display errors. [PCS is a lap top computer used onboard the International Space Station (ISS).] The need for automation stems from the large quantity of PCS displays (6,000+, with 1,000,000+ lines of command and telemetry data). The Display Audit Suite includes data-extraction tools, automatic error detection tools, and database tools for generating analysis spread sheets. These spread sheets allow engineers to more easily identify many different kinds of possible errors. The Suite supports over 40 independent analyses, 16 NASA Tech Briefs, November 2008 and complements formal testing by being comprehensive (all displays can be checked) and by revealing errors that are difficult to detect via test. In addition, the Suite can be run early in the development cycle to find and correct errors in advance of testing.

Holocene deceleration of the Greenland Ice Sheet.

PubMed

MacGregor, Joseph A; Colgan, William T; Fahnestock, Mark A; Morlighem, Mathieu; Catania, Ginny A; Paden, John D; Gogineni, S Prasad

2016-02-05

Recent peripheral thinning of the Greenland Ice Sheet is partly offset by interior thickening and is overprinted on its poorly constrained Holocene evolution. On the basis of the ice sheet's radiostratigraphy, ice flow in its interior is slower now than the average speed over the past nine millennia. Generally higher Holocene accumulation rates relative to modern estimates can only partially explain this millennial-scale deceleration. The ice sheet's dynamic response to the decreasing proportion of softer ice from the last glacial period and the deglacial collapse of the ice bridge across Nares Strait also contributed to this pattern. Thus, recent interior thickening of the Greenland Ice Sheet is partly an ongoing dynamic response to the last deglaciation that is large enough to affect interpretation of its mass balance from altimetry. Copyright © 2016, American Association for the Advancement of Science.

A Shared Memory Algorithm and Proof for the Alternative Construct in CSP (Communicating Sequential Processes).

DTIC Science & Technology

1987-08-25

Department Of Computer Science University Of Utah Salt Lake City, UT 84112 August 25, 1987 C IO ,c Acessin Tor i Ifl G I . DTIC ?T3 0 ummouned 0C0 Juxtil t...generated for each instance of an alternative operation. One procedure merits special attention. CheckAndCommit(AltListr, g ): INTEGER is called by process P...in figure 2. CheckAndCommit uses a procedure CheckGuard(AltListr, g ): INTEGER that scans th, remote alternative list AltList7 looking for a matching

Ice Flows: A Game-based Learning approach to Science Communication

NASA Astrophysics Data System (ADS)

Le Brocq, Anne

2017-04-01

Game-based learning allows people to become immersed in an environment, and learn how the system functions and responds to change through playing a game. Science and gaming share a similar characteristic: they both involve learning and understanding the rules of the environment you are in, in order to achieve your objective. I will share experiences of developing and using the educational game "Ice Flows" for science communication. The game tasks the player with getting a penguin to its destination, through controlling the size of the ice sheet via ocean temperature and snowfall. Therefore, the game aims to educate the user about the environmental controls on the behaviour of the ice sheet, whilst they are enjoying playing a game with penguins. The game was funded by a NERC Large Grant entitled "Ice shelves in a warming world: Filchner Ice Shelf system, Antarctica", so uses data from the Weddell Sea sector of the West Antarctic Ice Sheet to generate unique levels. The game will be easily expandable to other regions of Antarctica and beyond, with the ultimate aim of giving a full understanding to the user of different ice flow regimes across the planet.

The effect of conceptual metaphors through guided inquiry on student's conceptual change

NASA Astrophysics Data System (ADS)

Menia, Meli; Mudzakir, Ahmad; Rochintaniawati, Diana

2017-05-01

The purpose of this study was to identify student's conceptual change of global warming after integrated science learning based guided inquiry through conceptual metaphors. This study used a quasi-experimental with a nonequivalent control group design. The subject was students of two classes of one of MTsN Salido. Data was collected using conceptual change test (pretest and posttest), observation sheet to observe the learning processes, questionnaire sheet to identify students responses, and interview to identifyteacher'srespons of science learning with conceptual metaphors. The results showed that science learning based guided inquiry with conceptual metaphors is better than science learning without conceptual metaphors. The average of posttest experimental class was 79,40 and control class was 66,09. The student's conceptual change for two classes changed significantly byusing mann whitney U testwith P= 0,003(P less than sig. value, P< 0,05). This means that there was differenceson student's conceptual changebeetwen integrated science learning based guided inquiry with conceptual metaphors class and integrated science learning without conceptual metaphors class. The study also showed that teachers and studentsgive positive responsesto implementation of integrated science learning based guided inquiry with conceptual metaphors.

Fuels planning: science synthesis and integration; economic uses fact sheet 05: NEPA and economics

Treesearch

Rocky Mountain Research Station USDA Forest Service

2004-01-01

The National Environmental Policy Act (NEPA) is the law that requires Federal agencies to consider the environmental impacts of their actions, involve the public in the decisionmaking process, and disclose information, starting at the initial stages of planning. This fact sheet discusses when you should consider economics in the NEPA process, when to do an analysis,...

Fuels planning: science synthesis and integration; social issues fact sheet 02: Developing personal responsibility for fuels reduction: Types of information to encourage proactive behavior

Treesearch

Rocky Mountain Research Station USDA Forest Service

2004-01-01

Fuels management responsibilities may include providing local property owners with the information for taking responsibility for reducing fuels on their land. This fact sheet discusses three different types of information that may be useful in programs to engage property owners in fuel reduction activities.

Fuels planning: science synthesis and integration; economic uses fact sheet 04: My Fuel Treatment Planner

Treesearch

Rocky Mountain Research Station USDA Forest Service

2004-01-01

In the face of rapidly changing public and political attitudes toward fire and fuel planning, one thing remains constant: the fuel planner is ultimately responsible for making decisions on the land. This fact sheet discusses the options for fuel treatments, and the need, development, and use of the MS Excel-based tool, My Fuel Treatment Planner.

Fuels planning: science synthesis and integration; social issues fact sheet 13: Strategies for managing fuels and visual quality

Treesearch

Christine Esposito

2006-01-01

The public's acceptance of forest management practices, including fuels reduction, is heavily based on how forests look. Fuels managers can improve their chances of success by considering aesthetics when making management decisions. This fact sheet reviews a three-part general strategy for managing fuels and visual quality: planning, implementation, and monitoring...

Fuels planning: science synthesis and integration; environmental consequences fact sheet 11: Smoke Impact Spreadsheet (SIS) model

Treesearch

Trent Wickman; Ann Acheson

2005-01-01

The Smoke Impact Spreadsheet (SIS) is a simple-to-use planning model for calculating particulate matter (PM) emissions and concentrations downwind of wildland fires. This fact sheet identifies the intended users and uses, required inputs, what the model does and does not do, and tells the user how to obtain the model.

Fuels planning: science synthesis and integration; economic uses fact sheet 02: log hauling cost

Treesearch

Rocky Mountain Research Station USDA Forest Service

2004-01-01

Knowing the cost of fuel reduction treatments and associated activities, such as hauling cut trees, is essential for fire and fuels planning. This fact sheet explores the main factors that determine the cost of hauling cut trees and points the user to an interactive tool that can help plan for those and other expenses.

Fuels planning: science synthesis and integration; forest structure and fire hazard fact sheet 03: visualizing forest structure and fuels

Treesearch

Rocky Mountain Research Station USDA Forest Service

2004-01-01

The software described in this fact sheet provides managers with tools for visualizing forest and fuels information. Computer-based landscape simulations can help visualize stand and landscape conditions and the effects of different management treatments and fuel changes over time. These visualizations can assist forest planning by considering a range of management...

Science support for the Earth radiation budget sensor on the Nimbus-7 spacecraft

NASA Technical Reports Server (NTRS)

Ingersoll, A. P.

1982-01-01

Experimental data supporting the Earth radiation budget sensor on the Nimbus 7 Satellite is given. The data deals with the empirical relations between radiative flux, cloudiness, and other meteorological parameters; response of a zonal climate ice sheet model to the orbital perturbations during the quaternary ice ages; and a simple parameterization for ice sheet ablation rate.

Fuels planning: science synthesis and integration; environmental consequences fact sheet 10: The Understory Response Model

Treesearch

Steve Sutherland; Melanie Miller

2005-01-01

The Understory Response Model is a species-specific computer model that qualitatively predicts change in total species biomass for grasses, forbs, and shrubs after thinning, prescribed fire, or wildfire. The model examines the effect of fuels management on plant survivorship and reproduction. This fact sheet identifies the intended users and uses, required inputs, what...

Wine tasting based on emotional responses: An expedite approach to distinguish between warm and cool climate dry red wine styles.

PubMed

Coste, Amaury; Sousa, Paulo; Malfeito-Ferreira, Manuel

2018-04-01

In this study, we improved an empirical tasting sheet including emotional responses and common sensory attributes. An Optimized Descriptive Profile (ODP) was run to characterize different red wines according to sensory descriptors used in the improved sheet. A total of 5 wines were evaluated by a Consumer Panel (CP) of 103 subjects (36 females, 67 males) using the improved sheet and a Check-All-That-Apply (CATA) list of 25 emotions. In the ODP, the panel identified the main discriminating sensory attributes as "Complexity", "Astringency" and "Duration of the wine fragrance". However, this analysis did not allow for differentiating very distinct dry red wine styles originating from warmer or cooler regions. On the contrary, Principal Component Analysis of emotional attributes demonstrated that these two wine styles could be easily distinguished. In particular, wine with a red-brick color, complex smell and aggressive mouthfeel consistent with those from cooler regions was less liked by the CP than a warm climate gold-awarded wine. Although receiving lower scores considering its color and smell, the former wine was regarded as the most "surprising" in the CATA. Copyright © 2017 Elsevier Ltd. All rights reserved.

Robust and reliable banknote authentification and print flaw detection with opto-acoustical sensor fusion methods

NASA Astrophysics Data System (ADS)

Lohweg, Volker; Schaede, Johannes; Türke, Thomas

2006-02-01

The authenticity checking and inspection of bank notes is a high labour intensive process where traditionally every note on every sheet is inspected manually. However with the advent of more and more sophisticated security features, both visible and invisible, and the requirement of cost reduction in the printing process, it is clear that automation is required. As more and more print techniques and new security features will be established, total quality security, authenticity and bank note printing must be assured. Therefore, this factor necessitates amplification of a sensorial concept in general. We propose a concept for both authenticity checking and inspection methods for pattern recognition and classification for securities and banknotes, which is based on the concept of sensor fusion and fuzzy interpretation of data measures. In the approach different methods of authenticity analysis and print flaw detection are combined, which can be used for vending or sorting machines, as well as for printing machines. Usually only the existence or appearance of colours and their textures are checked by cameras. Our method combines the visible camera images with IR-spectral sensitive sensors, acoustical and other measurements like temperature and pressure of printing machines.

Retrofitting coils

DOE Office of Scientific and Technical Information (OSTI.GOV)

Merrill, D.G.

1995-12-01

This article provides guidelines for maintaining efficiency by determining which coils require replacement and the selection of replacement coils to match the originals in terms of size, performance, materials, and material thickness. Coils in the Rio Hondo College have been in use 24 years. The author recently found an installation where the coils installed 20 years ago look like new, which is the result of a highly effective preventive maintenance program. But these exceptions are countered by some installations lasting considerably less time. Periodic coil inspections are the best way to find leaks and deterioration. Leaking coils have an unhappymore » way of announcing their presence through unwanted water on ceilings, walls, and machine room floors. Minuscule streams of water impinge on nonwater-tight housings or are picked up in the air stream to leak out of the ductwork. Coil return bends and headers seem to have the greater incidence of failure and should be checked first for pinhole or joint leaks. Also, check along the points where the tubes penetrate the tube sheets. The coil headers should be checked as should the tubes along the front and backside of the coil. The more rows the coil has, the more difficult this latter assignment becomes.« less

Enhanced and updated American Heart Association heart-check front-of-package symbol: efforts to help consumers identify healthier food choices

USDA-ARS?s Scientific Manuscript database

A variety of nutrition symbols and rating systems are in use on the front of food packages. They are intended to help consumers make healthier food choices. One system, the American Heart Association Heart (AHA) Heart-Check Program, has evolved over time to incorporate current science-based recommen...

Fast imaging of live organisms with sculpted light sheets

NASA Astrophysics Data System (ADS)

Chmielewski, Aleksander K.; Kyrsting, Anders; Mahou, Pierre; Wayland, Matthew T.; Muresan, Leila; Evers, Jan Felix; Kaminski, Clemens F.

2015-04-01

Light-sheet microscopy is an increasingly popular technique in the life sciences due to its fast 3D imaging capability of fluorescent samples with low photo toxicity compared to confocal methods. In this work we present a new, fast, flexible and simple to implement method to optimize the illumination light-sheet to the requirement at hand. A telescope composed of two electrically tuneable lenses enables us to define thickness and position of the light-sheet independently but accurately within milliseconds, and therefore optimize image quality of the features of interest interactively. We demonstrated the practical benefit of this technique by 1) assembling large field of views from tiled single exposure each with individually optimized illumination settings; 2) sculpting the light-sheet to trace complex sample shapes within single exposures. This technique proved compatible with confocal line scanning detection, further improving image contrast and resolution. Finally, we determined the effect of light-sheet optimization in the context of scattering tissue, devising procedures for balancing image quality, field of view and acquisition speed.

The Ice Sheet Mass Balance Inter-comparison Exercise

NASA Astrophysics Data System (ADS)

Shepherd, A.; Ivins, E. R.

2015-12-01

Fluctuations in the mass of ice stored in Antarctica and Greenland are of considerable societal importance. The Ice Sheet Mass Balance Inter-Comparison Exercise (IMBIE) is a joint-initiative of ESA and NASA aimed at producing a single estimate of the global sea level contribution to polar ice sheet losses. Within IMBIE, estimates of ice sheet mass balance are developed from a variety of satellite geodetic techniques using a common spatial and temporal reference frame and a common appreciation of the contributions due to external signals. The project brings together the laboratories and space agencies that have been instrumental in developing independent estimates of ice sheet mass balance to date. In its first phase, IMBIE involved 27 science teams, and delivered a first community assessment of ice sheet mass imbalance to replace 40 individual estimates. The project established that (i) there is good agreement between the three main satellite-based techniques for estimating ice sheet mass balance, (ii) combining satellite data sets leads to significant improvement in certainty, (iii) the polar ice sheets contributed 11 ± 4 mm to global sea levels between 1992 and 2012, and (iv) that combined ice losses from Antarctica and Greenland have increased over time, rising from 10% of the global trend in the early 1990's to 30% in the late 2000's. Demand for an updated assessment has grown, and there are now new satellite missions, new geophysical corrections, new techniques, and new teams producing data. The period of overlap between independent satellite techniques has increased from 5 to 12 years, and the full period of satellite data over which an assessment can be performed has increased from 19 to 40 years. It is also clear that multiple satellite techniques are required to confidently separate mass changes associated with snowfall and ice dynamical imbalance - information that is of critical importance for climate modelling. This presentation outlines the approach for the second phase of IMBIE, including the project organisation, the work programme and schedule, the main science goals, and its current status, and reviews the recent and historical contributions that the Antarctic and Greenland ice sheets have made to global sea level rise.

Evolution of supra-glacial lakes across the Greenland Ice Sheet

NASA Astrophysics Data System (ADS)

Sundal, A. V.; Shepherd, A.; Nienow, P.; Hanna, E.; Palmer, S.; Huybrechts, P.

2009-04-01

We have used 268 cloud-free Moderate-resolution Imaging Spectroradiometer (MODIS) images spanning the 2003 and 2005-2007 melt seasons to study the seasonal evolution of supra-glacial lakes in three different regions of the Greenland Ice Sheet. Lake area estimates were obtained by developing an automated classification method for their identification based on 250 m resolution MODIS surface reflectance observations. Widespread supra-glacial lake formation and drainage is observed across the ice sheet, with a 2-3 weeks delay in the evolution of total supra-glacial lake area in the northern areas compared to the south-west. The onset of lake growth varies by up to one month inter-annually, and lakes form and drain at progressively higher altitudes during the melt season. A correlation was found between the annual peak in total lake area and modelled annual runoff across all study areas. Our results indicate that, in a future warmer climate (Meehl et al., 2007), Greenland supra-glacial lakes can be expected to form at higher altitudes and over a longer time period than is presently the case, expanding the area and time period over which connections between the ice sheet surface and base may be established (Das et al., 2008) with potential consequences for ice sheet discharge (Zwally et al., 2002). Das, S., Joughin, M., Behn, M., Howat, I., King, M., Lizarralde, D., & Bhatia, M. (2008). Fracture propagation to the base of the Greenland Ice Sheet during supra-glacial lake drainage. Science, 5877, 778-781. Meehl, G.A., Stocker, T.F., Collins W.D., Friedlingstein, P., Gaye, A.T., Gregory, J.M., Kitoh, A., Knutti, R., Murphy, J.M., Noda, A., Raper, S.C.B., Watterson, I.G., Weaver, A.J. & Zhao, Z.C. (2007). Global Climate Projections. In: Climate Change 2007: The Physical Science Basis. Contribution of Working Group I to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change [Solomon, S., D. Qin, M. Manning, Z. Chen, M. Marquis, K.B. Averyt, M. Tignor and H.L. Miller (eds.)]. Cambridge University Press, Cambridge, United Kingdom and New York, NY, USA. Zwally, H.J., Abdalati, W., Herring, T., Larson, K., Saba, J. & Steffen, K. (2002). Surface Melt-Induced Acceleration of Greenland Ice-Sheet Flow. Science, 297, 218-221.

What is science?

USGS Publications Warehouse

Shrake, D.L.; Elfner, L.E.; Hummon, W.; Janson, R.W.; Free, M.

2006-01-01

In 2000 The Ohio Academy of Science published its definition of "Science." Response to this definition led the Academy to produce a position paper entitled What is Science? The Academy officially adopted the position paper version of What is Science?, http: //www.ohiosci.org/ Whatisscience.pdf, at the April 2004 Ohio Academy of Science Annual Meeting. Response to this fact sheet demonstrated a need to further expand this document. Thus, this expanded version builds on the April 2004 position paper, What is Science? This paper clarifies what is science, the scientific method, a scientific hypothesis, a scientific theory, the importance of science, and what is not science.

Roller Coaster Science.

ERIC Educational Resources Information Center

Sumners, Carolyn; Jones, Howard L.

1983-01-01

Discusses the science of roller coasters, relating gravity, potential/kinetic energy, inertia, and centripetal force to the various parts of the ride, providing tips on linking classroom discussions to field trips. Includes sample student activity sheet and source for additional units using amusement park rides/playground activities to teach…

Licorice Root

MedlinePlus

... How Medications and Supplements Can Interact Know the Science: The Facts About Health News Stories NCCIH Clearinghouse The NCCIH ... as Dietary Supplements: What You Need to Know ), fact sheets on a variety of specific supplement ingredients ... for liver diseases. Digestive Diseases and Sciences. 2005;50(10):1807-1812. Jalili J, Askeroglu ...

1967-68 CATALOG OF TEACHING MATERIALS.

ERIC Educational Resources Information Center

Illinois Univ., Urbana. Coll. of Agriculture.

MATERIALS LISTED INCLUDE (1) MAINTENANCE KITS, ELECTRICAL CODES, AND SAFETY CHARTS FOR AGRICULTURAL MECHANICS, (2) PROGRAMED INSTRUCTION MATERIALS FOR 33 UNITS IN AGRICULTURE, (3) SLIDEFILMS FOR ANIMAL SCIENCE, DAIRY SCIENCE, FARM MANAGEMENT AND ECONOMICS, AND AGRICULTURAL MECHANICS, (4) AGRONOMY FACT SHEETS, LAND-USE SELECTION CARDS,…

Learning Partners: Escribamos! Leamos! Juguemos a las Ciencias! Juguemos a las Matematicas! (Learning Partners: Let's Write! Let's Read! Let's Play Mathematics! Let's Play Science!)

ERIC Educational Resources Information Center

Office of Educational Research and Improvement (ED), Washington, DC.

This Spanish-language document consists of four single-sheet sets of guidelines developed by the Family Involvement Partnership for Learning to assist parents in facilitating their children's elementary school success. The front part of the sheets describes general ways parents can support their children, including modeling writing, reading aloud,…

Fuels planning: science synthesis and integration; environmental consequences fact sheet 13: Root Disease Analyzer-Armillaria Response Tool (ART)

Treesearch

Geral I. McDonald; Philip D. Tanimoto; Thomas M. Rice; David E. Hall; Jane E. Stewart; Paul J. Zambino; Jonalea R. Tonn; Ned B. Klopfenstein; Mee-Sook Kim

2005-01-01

The Root Disease Analyzer-Armillaria Response Tool (ART) is a Web-based tool that estimates Armillaria root disease risk in dry forests of the Western United States. This fact sheet identifies the intended users and uses, required inputs, what the model does and does not do, and tells the user how to obtain the model.

Fuels planning: science synthesis and integration; social issues fact sheet 14: Landscape preference in forested ecosystems

Treesearch

Christine Esposito

2006-01-01

It is important to understand what types of landscape settings most people prefer to be able to plan fuels treatment and other forest management activities that will be acceptable to the general public. This fact sheet considers the four common elements of visually preferred forest settings: large trees; herbacious, smooth groundcover; open midstory canopy; and vistas...

Fuels planning: science synthesis and integration; social issues fact sheet 15: Landscape change and aesthetics

Treesearch

Christine Esposito

2006-01-01

Fuels management produces changes in the landscape that can impact scenic beauty. If people do not consider a forest to be scenic, they may think that the low scenic quality is a result of poor management or ecological health. This fact sheet looks at the relevency of the effects of natural and human-caused landscape changes, when planning fuels management.

Fuels planning: science synthesis and integration; social issues fact sheet 17: Considering social acceptability of fuels treatments

Treesearch

Christine Esposito

2006-01-01

When making decisions about fuels treatments, forest managers need to assess not only the biological impacts of a treatment, but the social impacts as well. Social acceptability is based on value judgments by people-their notions of what is "good" and what is "better." This fact sheet discusses six questions that may be useful for framing initial...

Fuels planning: science synthesis and integration; social issues fact sheet 01: Developing personal responsibility for fuels reduction: Building a successful program to engage property owners

Treesearch

Rocky Mountain Research Station USDA Forest Service

2004-01-01

In the course of work as a land manager, you will no doubt be involved in developing programs to achieve various objectives, including the improvement of fuels management on private lands. This fact sheet describes six steps that will help you plan and conduct a successful program.

Fuels planning: science synthesis and integration; environmental consequences fact sheet 01: Fire Effects Information System (FEIS)

Treesearch

Steve Sutherland

2004-01-01

The Fire Effects Information System (FEIS) provides accessible, up-to-date fire effects summaries, taken from current English-language literature, for almost 900 plant species, about 100 animal species, and 16 Kuchler plant communities found on the North American continent. This fact sheet discusses the development of FEIS and what is contained in the species summary....

Coordinated Specialty Care Fact Sheet and Checklist

MedlinePlus

... Join A Study News & Events News & Events Home Science News Meetings and Events Multimedia Social Media Press Resources Newsletters NIMH News Feeds About Us About Us Home About the Director Advisory Boards and ... of Mental Health Office of Science Policy, Planning, and Communications 6001 Executive Boulevard, Room ...

Citizen Science Air Sensor Project with Clean Air Carolina and the Eastern Band of Cherokee Indians Fact Sheet

EPA Pesticide Factsheets

EPA scientists are partnering with Clean Air Carolina (CAC) in Charlotte, N.C., and the Eastern Band of Cherokee Indians (EBCI) in Cherokee, N.C., to conduct a citizen science air quality project in these regions.

Are Three Sheets Enough? Using Toilet Paper to Teach Science and Mathematics

ERIC Educational Resources Information Center

Woolverton, Christopher J.; Woolverton, Lyssa N.

2006-01-01

Toilet paper (TP) composition and physical characteristics were used to model scientific investigations that combined several "National Science Education Standards." Experiments with TP permitted the integration of TP history, societal change resulting from invention, mathematics (including geometry and statistics), germ theory, and personal…

DOE Office of Scientific and Technical Information (OSTI.GOV)

Jozsef, G

Purpose: To build a test device for HDR afterloaders capable of checking source positions, times at positions and estimate the activity of the source. Methods: A catheter is taped on a plastic scintillation sheet. When a source travels through the catheter, the scintillator sheet lights up around the source. The sheet is monitored with a video camera, and records the movement of the light spot. The center of the spot on each image on the video provides the source location, and the time stamps of the images can provide the dwell time the source spend in each location. Finally, themore » brightness of the light spot is related to the activity of the source. A code was developed for noise removal, calibrate the scale of the image to centimeters, eliminate the distortion caused by the oblique view angle, identifying the boundaries of the light spot, transforming the image into binary and detect and calculate the source motion, positions and times. The images are much less noisy if the camera is shielded. That requires that the light spot is monitored in a mirror, rather than directly. The whole assembly is covered from external light and has a size of approximately 17×35×25cm (H×L×W) Results: A cheap camera in BW mode proved to be sufficient with a plastic scintillator sheet. The best images were resulted by a 3mm thick sheet with ZnS:Ag surface coating. The shielding of the camera decreased the noise, but could not eliminate it. A test run even in noisy condition resulted in approximately 1 mm and 1 sec difference from the planned positions and dwell times. Activity tests are in progress. Conclusion: The proposed method is feasible. It might simplify the monthly QA process of HDR Brachytherapy units.« less

Bryological exploration: field-trip based learning to develop competencies of science teacher candidate

NASA Astrophysics Data System (ADS)

Wisanti; Astriani, D.

2018-04-01

The purpose of this study was analyze the competencies of science teacher candidate after the bryological exploration. The intended competence of science teacher candidate was the ability to apply the concept and science ability to explore plant diversity that could be found around the environment.This field trip was conducted by exploring liverworts, hornworts, and mosses as well. This descriptive research was conducted during March until April 2017 at Universitas Negeri Surabaya (UNESA) and Sumber Brantas Arboretum in Malang, as the location of exploration. The subjects of this study were 76 candidate of teachers from science educations department, which is divided into three classes. The competences observed on this study were describing, identifying, collecting specimens, furthermore. The research instruments were observation sheets, product assessment sheets, and response questionnaire. The data were analyzed descriptive-quantitatively, in percentage and then categorized. The results of this study indicated that: the describing skill was categorized as ‘good’ identifying skill and collecting bryophytes was categorized as ‘very good’ and communicating skills was categorized ‘good’. In addition, the teacher candidates gave a very good response to field-trip-based learning. It can be concluded that the bryological exploration can develop the competences of science teacher candidates of Science Education Department of UNESA.

The GLAS Science Algorithm Software (GSAS) User's Guide Version 7

NASA Technical Reports Server (NTRS)

Lee, Jeffrey E.

2013-01-01

The Geoscience Laser Altimeter System (GLAS) is the primary instrument for the ICESat (Ice, Cloud and Land Elevation Satellite) laser altimetry mission. ICESat was the benchmark Earth Observing System (EOS) mission for measuring ice sheet mass balance, cloud and aerosol heights, as well as land topography and vegetation characteristics. From 2003 to 2009, the ICESat mission provided multi-year elevation data needed to determine ice sheet mass balance as well as cloud property information, especially for stratospheric clouds common over polar areas. It also provided topography and vegetation data around the globe, in addition to the polar-specific coverage over the Greenland and Antarctic ice sheets.This document is the final version of the GLAS Science Algorithm Software Users Guide document. It contains the instructions to install the GLAS Science Algorithm Software (GSAS) in the production environment that was used to create the standard data products. It also describes the usage of each GSAS program in that environment with their required inputs and outputs. Included are a number of utility programs that are used to create ancillary data files that are used in the processing but generally are not distributed to the public as data products. Of importance is the values for the large number of constants used in the GSAS algorithm during processing are provided in an appendix.

Effectiveness of Adaptive Contextual Learning Model of Integrated Science by Integrating Digital Age Literacy on Grade VIII Students

NASA Astrophysics Data System (ADS)

Asrizal, A.; Amran, A.; Ananda, A.; Festiyed, F.

2018-04-01

Educational graduates should have good competencies to compete in the 21st century. Integrated learning is a good way to develop competence of students in this century. Besides that, literacy skills are very important for students to get success in their learning and daily life. For this reason, integrated science learning and literacy skills are important in 2013 curriculum. However, integrated science learning and integration of literacy in learning can’t be implemented well. Solution of this problem is to develop adaptive contextual learning model by integrating digital age literacy. The purpose of the research is to determine the effectiveness of adaptive contextual learning model to improve competence of grade VIII students in junior high school. This research is a part of the research and development or R&D. Research design which used in limited field testing was before and after treatment. The research instruments consist of three parts namely test sheet of learning outcome for assessing knowledge competence, observation sheet for assessing attitudes, and performance sheet for assessing skills of students. Data of student’s competence were analyzed by three kinds of analysis, namely descriptive statistics, normality test and homogeneity test, and paired comparison test. From the data analysis result, it can be stated that the implementation of adaptive contextual learning model of integrated science by integrating digital age literacy is effective to improve the knowledge, attitude, and literacy skills competences of grade VIII students in junior high school at 95% confidence level.

biologically relevant effects of dipentyl phthalate

EPA Pesticide Factsheets

metadata sheet, data sheet for each table and figure in the published manuscriptThis dataset is associated with the following publication:Gray , E., J. Furr , K. Tatum-Gibbs, C. Lambright , H. Sampson, B. Hannas, V. Wilson , A. Hotchkiss , and P. Foster. Establishing the Biological Relevance of Dipentyl Phthalate Reductions in Fetal Rat Testosterone Production and Plasma and Testis Testosterone Levels. TOXICOLOGICAL SCIENCES. Society of Toxicology, 149(1): 178-91, (2016).

Fuels planning: science synthesis and integration; environmental consequences fact sheet 09: Fire and Fuels Extension to the Forest Vegetation Simulator (FFE-FVS)

Treesearch

Elizabeth Reinhardt

2005-01-01

FFE-FVS is a model linking stand development, fuel dynamics, fire behavior and fire effects. It allows comparison of mid- to long-term effects of management alternatives including harvest, mechanical fuel treatment, prescribed fire, salvage, and no action. This fact sheet identifies the intended users and uses, required inputs, what the model does, and tells the user...

Fuels planning: science synthesis and integration; social issues fact sheet 05: The importance of working locally

Treesearch

Rocky Mountain Research Station USDA Forest Service

2004-01-01

People who evaluate their actions in terms of what others think are often said to be guided by community norms. With respect to fuels management, this means that when you are "selling" a property owner on taking steps to reduce fuels, you are not just "selling" to one person, but to a network of people. This fact sheet discusses three tools to help...

Fuels planning: science synthesis and integration; environmental consequences fact sheet 03: structure fires in the wildland-urban interface

Treesearch

Steve Sutherland

2004-01-01

National Fire Protection Association (NFPA) data indicate that wildfires destroyed approximately 9,000 homes between 1985 and 1994 in the United States. The loss of homes to wildfire has had a significant impact on Federal fire policy. This fact sheet discusses the causes of home ignitions in the wildland-urban interface, home ignition zones, how to reduce home...

Fuels planning: science synthesis and integration; forest structure and fire hazard fact sheet 01: forest structure and fire hazard overview

Treesearch

Rocky Mountain Research Station USDA Forest Service

2004-01-01

Many managers and policymakers guided by the National Environmental Policy Act process want to understand the scientific principles on which they can base fuel treatments for reducing the size and severity of wildfires. These Forest Structure and Fire Hazard fact sheets discuss how to estimate fire hazard, how to visualize fuel treatments, and how the role of...

Free Teaching Materials: Classroom and Curriculum Aids for Elementary School Science.

ERIC Educational Resources Information Center

Raimist, Roger J.; Mester, Rose A.

Free teaching materials suitable for elementary school science available from 168 agencies and companies are listed. Materials include booklets, teacher's source books and guides, charts and posters, and concrete materials such as mineral samples. Suggestions and materials for student activities range from experiments to song sheets. Topics…

New Mexico State Secondary School Science-Based Nutrition Curriculum.

ERIC Educational Resources Information Center

Ecklund, Susan, Ed.; Smalley, Katherine, Ed.

This curriculum guide provides instructional materials for a 10-unit secondary-level science-based nutrition course. Each unit contains some or all of the following components: a summary sheet for each function, including generalizations with corresponding objectives, additional learning activities, and additional resources; unit outline; pretest;…

Fermilab | Science | Inquiring Minds

Science.gov Websites

Book Newsroom Newsroom News and features Press releases Photo gallery Fact sheets and brochures Media media Video of shutdown event Guest book Tevatron Impact June 11, 2012 About the symposium Symposium Office of Science Security, Privacy, Legal Use of Cookies Quick Links Home Contact Phone Book Fermilab at

Incorporating Writing into the Science Curriculum: A Sample Activity.

ERIC Educational Resources Information Center

Totten, Samuel; Tinnin, Claire

1988-01-01

Presents a lesson on introducing writing into the science curriculum by using an experiment to illustrate the detrimental effect of tobacco smoke on human lungs. Outlines the materials, procedures, a summary of the project, extension activities, and additional information about the writing process. Two handout sheets are included. (RT)

Diarrhea and Swimming

MedlinePlus

... Health International Recreational Water RWIs, Swimmer Hygiene, & Behavioral Science Historical CDC Manuals Health Promotion Materials Brochures Buttons & Banners Fact Sheets Infographics Clean It Up, Swimmers Make a ...

Proceedings of the 25th Project Integration Meeting

NASA Technical Reports Server (NTRS)

Phillips, M.

1985-01-01

Topics addressed include: silicon sheet growth and characterization, silicon material, process development, high-efficiency cells, environmental isolation, engineering sciences, and reliability physics.

Ice streaming in western Scotland and the deglaciation of the Hebrides Shelf and Firth of Lorn

NASA Astrophysics Data System (ADS)

Arosio, Riccardo; Howe, John; O'Cofaigh, Colm; Crocket, Kirsty

2014-05-01

Previously, numerous studies have been undertaken both onshore and offshore to decipher the morphological and sedimentological record in order to better constrain the limits and duration of the British-Irish Ice Sheet (BIIS) (Ballantyne et al. 2009, Bradwell et al. 2008b, Clark et al. 2011, Dunlop et al. 2010, Howe et al. 2012, O'Cofaigh et al., 2012). Late glacial ice sheet dynamics have been revealed to be far more rapid and responsive to climatic amelioration than had previously been considered. Notable in this debate has been the evidence that has been obtained in the inshore and, to a lesser extent, offshore on the UK continental shelf. Here new geomorphological data, principally multibeam echo sounder (MBES) data has provided imagery of previously unseen features interpreted as being glacial in origin. In the wake of these new discoveries this projects aims to investigate the extent, timing, growth and final disintegration of the BIIS across Western Scotland. This area of particular interest for the development of the glaciated North Atlantic margin has been generally neglected in past studies, especially across the mid-outer shelf, which constitutes a missing part in the jigsaw of the reconstructed BIIS during the last ~20.000yrs. We aim to mainly focus on geomorphological analyses of MBES data collected in the Firth of Lorn and Sea of Hebrides; a study of features as moraines, glacial lineations and drumlins will provide important clues on the dynamics and maximum extension of the sheet. Subsequently we will examine the geometry and composition of the shelf sediment infill, aiming to constrain the influence of ice retreat on depositional environments using multi-element geochemical (Pb-isotopes ratios, 14C and OSL dating) and sedimentological techniques. Such an investigation will also give retrospective information on the sources for these sediments, hence more indications on ice configuration. Ultimately we aim to provide a model of deglaciation for the western sector of the BIIS. Keywords: British-Irish Ice Sheet, NW Scotland, glacial bedforms, geochronology References Ballantyne, C.K., Schnabel, C. & Xu, S. 2009. Readvance of the last British Ice Sheet during Greenland Interstade (GI-1): the Wester Ross Readvance, NW Scotland. Quaternary Science Reviews, 28, 783-789 Bradwell, T., Fabel, D., Stoker, M., Mathers, H., McHargue, L., Howe, J., 2008b. Ice caps existed throughout the Late glacial interstadial in northern Scotland. Journal of Quaternary Science 23, 401-407. Clark, C.D., Hughes, A.L.C., Greenwood, S.L., Jordan, C., Sejrup, H.P. 2012. Pattern and timing of retreat of the last British-Irish Ice Sheet. Quaternary Science Reviews. Dunlop, P., Shannon, R., McCabe, M., Quinn, R., Doyle, E. 2010. Marine geophysical evidence for ice sheet extension and recession on the Malin Shelf: New evidence for the western limits of the British-Irish Ice Sheet. Marine Geology, 276: 86-99. Howe, J. A., Dove, D., Bradwell, T. & Gaferia, J. 2012. Submarine geomorphology and glacial history of the Sea of the Hebrides, UK. Marine Geology 315-318, 64-78 O' Cofaigh, C., Dunlop, P. Benetti, S., 2012. Marine geophysical evidence for Late Pleistocene ice sheet extent and recession off northwest Ireland, Quaternary Science Reviews. In press.

I. The design, synthesis, and structure of antiparallel beta-sheet and beta-strand mimics. II. The design of a scripted chemistry outreach program to high schools

NASA Astrophysics Data System (ADS)

Waldman, Amy Sue

I. Protein structure is not easily predicted from the linear sequence of amino acids. An increased ability to create protein structures would allow researchers to develop new peptide-based therapeutics and materials, and would provide insights into the mechanisms of protein folding. Toward this end, we have designed and synthesized two-stranded antiparallel beta-sheet mimics containing conformationally biased scaffolds and semicarbazide, urea, and hydrazide linker groups that attach peptide chains to the scaffold. The mimics exhibited populations of intramolecularly hydrogen-bonded beta-sheet-like conformers as determined by spectroscopic techniques such as FTIR, sp1H NMR, and ROESY studies. During our studies, we determined that a urea-hydrazide beta-strand mimic was able to tightly hydrogen bond to peptides in an antiparallel beta-sheet-like configuration. Several derivatives of the urea-hydrazide beta-strand mimic were synthesized. Preliminary data by electron microscopy indicate that the beta-strand mimics have an effect on the folding of Alzheimer's Abeta peptide. These data suggest that the urea-hydrazide beta-strand mimics and related compounds may be developed into therapeutics which effect the folding of the Abeta peptide into neurotoxic aggregates. II. In recent years, there has been concern about the low level of science literacy and science interest among Americans. A declining interest in science impacts the abilities of people to make informed decisions about technology. To increase the interest in science among secondary students, we have developed the UCI Chemistry Outreach Program to High Schools. The Program features demonstration shows and discussions about chemistry in everyday life. The development and use of show scripts has enabled large numbers of graduate and undergraduate student volunteers to demonstrate chemistry to more than 12,000 local high school students. Teachers, students, and volunteers have expressed their enjoyment of The UCI Chemistry Outreach Program to High Schools.

The Mars Science Laboratory Organic Check Material

NASA Astrophysics Data System (ADS)

Conrad, Pamela G.; Eigenbrode, Jennifer L.; Von der Heydt, Max O.; Mogensen, Claus T.; Canham, John; Harpold, Dan N.; Johnson, Joel; Errigo, Therese; Glavin, Daniel P.; Mahaffy, Paul R.

2012-09-01

Mars Science Laboratory's Curiosity rover carries a set of five external verification standards in hermetically sealed containers that can be sampled as would be a Martian rock, by drilling and then portioning into the solid sample inlet of the Sample Analysis at Mars (SAM) suite. Each organic check material (OCM) canister contains a porous ceramic solid, which has been doped with a fluorinated hydrocarbon marker that can be detected by SAM. The purpose of the OCM is to serve as a verification tool for the organic cleanliness of those parts of the sample chain that cannot be cleaned other than by dilution, i.e., repeated sampling of Martian rock. SAM possesses internal calibrants for verification of both its performance and its internal cleanliness, and the OCM is not used for that purpose. Each OCM unit is designed for one use only, and the choice to do so will be made by the project science group (PSG).

Joint Science Education Project: Learning about polar science in Greenland

NASA Astrophysics Data System (ADS)

Foshee Reed, Lynn

2014-05-01

The Joint Science Education Project (JSEP) is a successful summer science and culture opportunity in which students and teachers from the United States, Denmark, and Greenland come together to learn about the research conducted in Greenland and the logistics involved in supporting the research. They conduct experiments first-hand and participate in inquiry-based educational activities alongside scientists and graduate students at a variety of locations in and around Kangerlussuaq, Greenland, and on the top of the ice sheet at Summit Station. The Joint Committee, a high-level forum involving the Greenlandic, Danish and U.S. governments, established the Joint Science Education Project in 2007, as a collaborative diplomatic effort during the International Polar Year to: • Educate and inspire the next generation of polar scientists; • Build strong networks of students and teachers among the three countries; and • Provide an opportunity to practice language and communication skills Since its inception, JSEP has had 82 student and 22 teacher participants and has involved numerous scientists and field researchers. The JSEP format has evolved over the years into its current state, which consists of two field-based subprograms on site in Greenland: the Greenland-led Kangerlussuaq Science Field School and the U.S.-led Arctic Science Education Week. All travel, transportation, accommodations, and meals are provided to the participants at no cost. During the 2013 Kangerlussuaq Science Field School, students and teachers gathered data in a biodiversity study, created and set geo- and EarthCaches, calculated glacial discharge at a melt-water stream and river, examined microbes and tested for chemical differences in a variety of lakes, measured ablation at the edge of the Greenland Ice Sheet, and learned about fossils, plants, animals, minerals and rocks of Greenland. In addition, the students planned and led cultural nights, sharing food, games, stories, and traditions of their states, regions, and countries with one another. A subset of the Field School students continue their polar science exploration by traveling to and experiencing science at the top of the Greenlandic ice sheet, as participants in Arctic Science Education Week. They launched weather balloons, took measurements of reflectivity to learn more about albedo, studied glaciers and ice sheets and created hands-on models to study their flow, shadowed the Summit science technicians on their rounds, practiced taking clean snow samples, examined a back-lit snow pit to observe the differences between seasonal snows and ice formation, and assisted researchers by taking samples from the snow pit for isotope analysis. Lastly, I will share one group multi- and interdisciplinary activity used at JSEP which illustrates how to combine mathematics and science with global studies. As noted in the Mathematics of Planet Earth 2013 initiative: "The challenges facing our planet and our civilization are multidisciplinary and multifaceted, and the mathematical sciences play a central role in the scientific effort to understand and to deal with these challenges." In particular, this group activity uses mathematical modeling and data representation to spark a discussion of civic engagement and to raise awareness that the polar regions are critically important to the global system.

E12 sheet plastination: Techniques and applications.

PubMed

Ottone, Nicolas Ernesto; Baptista, Carlos A C; Latorre, Rafael; Bianchi, Homero Felipe; Del Sol, Mariano; Fuentes, Ramon

2017-10-30

Plastination is an anatomical technique that consists of replacing the liquids and fat of specimens by reactive polymers through forced impregnation in a vacuum. These are then polymerized to achieve the final result. E12 sheet plastination involves epoxy resin impregnation of thin (2-4 mm) and ultra-thin (<2 mm) tissue sheets, producing dry, transparent, odorless, non-toxic and long-lasting sheets. E12 sheet plastination techniques were reviewed using MEDLINE, EMBASE and SciELO databases, and manual searches. After searching, 616 records were found using the online and manual searches (MEDLINE, n: 207; EMBASE, n: 346; SciELO, n: 44; Manual search: 23). Finally, 96 records were included in this review (after duplicates and articles unrelated to the subject were excluded). The aim of this work was to review the E12 sheet plastination technique, searching for articles concerning views of it, identifying the different variants implemented by researchers since its creation by Gunther von Hagens, and to identify its applications from teaching and research in anatomy to morphological sciences. Clin. Anat., 2017. © 2017 Wiley Periodicals, Inc. © 2017 Wiley Periodicals, Inc.

45 CFR 1703.404 - Copying and transcription charges.

Code of Federal Regulations, 2010 CFR

2010-10-01

... LIBRARIES AND INFORMATION SCIENCE GOVERNMENT IN THE SUNSHINE ACT Maintenance of Meeting Records § 1703.404.... Requested information will not be released until the deposit is received. Fees shall be paid by check or money order made payable to the National Commission on Libraries and Information Science. (b) The...

45 CFR 1703.404 - Copying and transcription charges.

Code of Federal Regulations, 2014 CFR

2014-10-01

... LIBRARIES AND INFORMATION SCIENCE GOVERNMENT IN THE SUNSHINE ACT Maintenance of Meeting Records § 1703.404.... Requested information will not be released until the deposit is received. Fees shall be paid by check or money order made payable to the National Commission on Libraries and Information Science. (b) The...

LADEE Mission Update 2 (Beginning of Science Operations) Reporter Package

NASA Image and Video Library

2013-11-19

NASA's Lunar Atmosphere and Dust Environment Explorer, or LADEE, spacecraft has completed the check-out phase of its mission and has begun science operations around the moon. All the science instruments on-board have been examined by the LADEE team and have been cleared to begin collecting and analyzing the dust in the exosphere, or very thin atmosphere, that surrounds the moon.

[1980-1991 evaluation of naturopathy practitioners in the Detmold presidential administration--inventory and analysis].

PubMed

Lubbe, R

1993-05-01

In Germany two professional groups may apply medical science to human beings: physicians and "Heilpraktiker" (naturopaths). However, no regulations exist regarding training, examination and continuation of studies of "Heilpraktiker". They only have to be checked on the basis of the Heilpraktiker low intended to exclude a danger to health of the people. In North Rhine Westphalia each of the 54 public health offices effects this checking on its own responsibility. The present analysis shows that in the Detmold administration district the checking by the individual public health offices differs greatly from one another. There are offices where most applicants fail and others where nearly all of the applicants pass. In addition the passing rate shows considerable regional and temporal differences. It can also be taken from the data that public health offices with a high passing rate not only carry out many checking cases but that they receive applicants residing outside the area of responsibility of the checking public health office ("checking tourism"). Rapid implementation of the "Federal Guide on the Checking of Heilpraktiker Applicants" is recommended for the Land of North Rhine Westphalia as this procedure would be fairer for the applicant and less expensive for the citizens.

Quality Control System using Simple Implementation of Seven Tools for Batik Textile Manufacturing

NASA Astrophysics Data System (ADS)

Ragil Suryoputro, Muhammad; Sugarindra, Muchamad; Erfaisalsyah, Hendy

2017-06-01

In order to produce better products and mitigate defect in products, every company must implement a quality control system. Company will find means to implement a quality control system that is capable and reliable. One of the methods is using the simple implementation of the seven tools in quality control defects. The case studied in this research was the level of disability xyz grey fabric on a shuttle loom 2 on the Batik manufacturing company. The seven tools that include: flowchart, check sheet, histogram, scatter diagram combined with control charts, Pareto diagrams and fishbone diagrams (causal diagram). Check sheet results obtained types of defects in the grey fabric was woven xyz is warp, double warp, the warp break, double warp, empty warp, warp tenuous, ugly edges, thick warp, and rust. Based on the analysis of control chart indicates that the process is out of control. This can be seen in the graph control where there is still a lot of outlier data. Based on a scatter diagram shows a positive correlation between the percentage of disability and the number of production. Based on Pareto diagram, repair needs priority is for the dominant type of defect is warp (44%) and based on double warp value histogram is also the highest with a value of 23635.11 m. In addition, based on the analysis of the factors causing defect by fishbone diagram double warp or other types of defects originating from the materials, methods, machines, measurements, man and environment. Thus the company can take to minimize the prevention and repair of defects and improve product quality.

On a magnetic reconnection in the Venusian wake. The experimental evidences.

NASA Astrophysics Data System (ADS)

Fedorov, Andrei; Jarvinen, Riku; Volwerk, Martin; Barabash, Stas; Zhang, Tielong; Sauvaud, Jean-Andre

2010-05-01

The Venusian magnetotail is formed by solar wind magnetic flux tubes draping around the planet and stretched antisunward. The magnetotail topology represents two magnetic lobes separated by a thin current sheet. Such a configuration is a free energy reservoir. The accumulated energy is generally released by antisunward acceleration of the planetary ions. But in the case of a magnetic reconnection, hypothetically appeared somewhere in the equatorial current sheet, some part of the planetary ions filling the tail, should be accelerated toward the planet. To check this hypothesis we have performed statistical and case studies based on the data from the IMA mass-spectrometer and the magnetometer onboard ESA Venus Express mission. We found that the distribution function of the planetary ions in the equatorial plane of the wake, near the midnight, and at the distances less than 1.7Rv from the center of the planet contains the significant part moving toward the planet. At the same time the magnetic field statistics and the numerical simulation show the magnetic field minimum similar to an X-line in the current sheet at the distance about 1.7 Rv from the planet center. This could be an evidence for a quasi-permanent reconnection in the Venusian wake.

Fuels planning: science synthesis and integration; forest structure and fire hazard fact sheet 06: Guide to fuel treatments in dry forests of the Western United States: assessing forest structure and fire hazard

Treesearch

Rocky Mountain Research Station USDA Forest Service

2005-01-01

The Guide to Fuel Treatments analyzes a range of potential silvicultural thinnings and surface fuel treatments for 25 representative dry-forest stands in the Western United States. The guide provides quantitative guidelines and visualization for treatment based on scientific principles identified for reducing potential crown fires. This fact sheet identifies the...

Fuels planning: science synthesis and integration; environmental consequences fact sheet 12: Water Erosion Prediction Project (WEPP) Fuel Management (FuMe) tool

Treesearch

William Elliot; David Hall

2005-01-01

The Water Erosion Prediction Project (WEPP) Fuel Management (FuMe) tool was developed to estimate sediment generated by fuel management activities. WEPP FuMe estimates sediment generated for 12 fuel-related conditions from a single input. This fact sheet identifies the intended users and uses, required inputs, what the model does, and tells the user how to obtain the...

Generation and characterization of ultrathin free-flowing liquid sheets

DOE Office of Scientific and Technical Information (OSTI.GOV)

Koralek, Jake D.; Kim, Jongjin B.; Bruza, Petr

The physics and chemistry of liquid solutions play a central role in science, and our understanding of life on Earth. Unfortunately, key tools for interrogating aqueous systems, such as infrared and soft X-ray spectroscopy, cannot readily be applied because of strong absorption in water. Here we use gas-dynamic forces to generate free-flowing, sub-micron, liquid sheets which are two orders of magnitude thinner than anything previously reported. Optical, infrared, and X-ray spectroscopies are used to characterize the sheets, which are found to be tunable in thickness from over 1 μm down to less than 20 nm, which corresponds to fewer thanmore » 100 water molecules thick. At this thickness, aqueous sheets can readily transmit photons across the spectrum, leading to potentially transformative applications in infrared, X-ray, electron spectroscopies and beyond. Lastly, the ultrathin sheets are stable for days in vacuum, and we demonstrate their use at free-electron laser and synchrotron light sources.« less

Generation and characterization of ultrathin free-flowing liquid sheets

DOE PAGES

Koralek, Jake D.; Kim, Jongjin B.; Bruza, Petr; ...

2018-04-10

The physics and chemistry of liquid solutions play a central role in science, and our understanding of life on Earth. Unfortunately, key tools for interrogating aqueous systems, such as infrared and soft X-ray spectroscopy, cannot readily be applied because of strong absorption in water. Here we use gas-dynamic forces to generate free-flowing, sub-micron, liquid sheets which are two orders of magnitude thinner than anything previously reported. Optical, infrared, and X-ray spectroscopies are used to characterize the sheets, which are found to be tunable in thickness from over 1 μm down to less than 20 nm, which corresponds to fewer thanmore » 100 water molecules thick. At this thickness, aqueous sheets can readily transmit photons across the spectrum, leading to potentially transformative applications in infrared, X-ray, electron spectroscopies and beyond. Lastly, the ultrathin sheets are stable for days in vacuum, and we demonstrate their use at free-electron laser and synchrotron light sources.« less

The Effects of a Computerized Study Program on the Acquisition of Science Vocabulary

ERIC Educational Resources Information Center

Rollins, Karen F.

2012-01-01

The following study examined the difference in science vocabulary acquisition comparing computer-assisted learning and a traditional study review sheet. Fourth and fifth grade students from a suburban school in central Texas were randomly selected and randomly assigned to either experimental group or control group. Both groups were given a…

Fermilab | Science | Particle Accelerators | LHC and Future Accelerators

Science.gov Websites

Book Newsroom Newsroom News and features Press releases Photo gallery Fact sheets and brochures Media media Video of shutdown event Guest book Tevatron Impact June 11, 2012 About the symposium Symposium Office of Science Security, Privacy, Legal Use of Cookies Quick Links Home Contact Phone Book Fermilab at

Fermilab | Science | Particle Accelerators | Fermilab's Accelerator Complex

Science.gov Websites

Book Newsroom Newsroom News and features Press releases Photo gallery Fact sheets and brochures Media media Video of shutdown event Guest book Tevatron Impact June 11, 2012 About the symposium Symposium Science Security, Privacy, Legal Use of Cookies Quick Links Home Contact Phone Book Fermilab at Work For

Fermilab | Science | Inquiring Minds | Questions About Physics

Science.gov Websites

Book Newsroom Newsroom News and features Press releases Photo gallery Fact sheets and brochures Media media Video of shutdown event Guest book Tevatron Impact June 11, 2012 About the symposium Symposium Science Security, Privacy, Legal Use of Cookies Quick Links Home Contact Phone Book Fermilab at Work For

Fermilab | Science | Questions for the Universe

Science.gov Websites

Book Newsroom Newsroom News and features Press releases Photo gallery Fact sheets and brochures Media media Video of shutdown event Guest book Tevatron Impact June 11, 2012 About the symposium Symposium Science Security, Privacy, Legal Use of Cookies Quick Links Home Contact Phone Book Fermilab at Work For

Shelving plans, elevations, and sections. San Bernardino Valley Union Junior ...

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

Shelving plans, elevations, and sections. San Bernardino Valley Union Junior College, Science Building. Howard E. Jones, Architect, San Bernardino, California. Sheet 9, job no. 311. Scale 1.2 inch to the foot. February 15, 1927. - San Bernardino Valley College, Life Science Building, 701 South Mount Vernon Avenue, San Bernardino, San Bernardino County, CA

The Mars Science Laboratory Organic Check Material

NASA Technical Reports Server (NTRS)

Conrad, Pamela G.; Eigenbrode, J. E.; Mogensen, C. T.; VonderHeydt, M. O.; Glavin, D. P.; Mahaffy, P. M.; Johnson, J. A.

2011-01-01

The Organic Check Material (OCM) has been developed for use on the Mars Science Laboratory mission to serve as a sample standard for verification of organic cleanliness and characterization of potential sample alteration as a function of the sample acquisition and portioning process on the Curiosity rover. OCM samples will be acquired using the same procedures for drilling, portioning and delivery as are used to study martian samples with The Sample Analysis at Mars (SAM) instrument suite during MSL surface operations. Because the SAM suite is highly sensitive to organic molecules, the mission can better verify the cleanliness of Curiosity's sample acquisition hardware if a known material can be processed through SAM and compared with the results obtained from martian samples.

JPRS Report, Science & Technology, Japan, Key Tech Center Advanced Communications Research

DTIC Science & Technology

1990-02-26

networks. 27 b. Fuzzy access Even when correct information regarding the connection destination is not available, this makes it possible to establish...a connection based on the stored fuzzy information. c. Logical accessing Makes it possible to effect a connection based on the logical name (indivi...understand fuzzy indications from the user. (b) Normality check tests The following tests should be conducted to check the normality of user- defined services

Check Calibration of the NASA Glenn 10- by 10-Foot Supersonic Wind Tunnel (2014 Test Entry)

NASA Technical Reports Server (NTRS)

Johnson, Aaron; Pastor-Barsi, Christine; Arrington, E. Allen

2016-01-01

A check calibration of the 10- by 10-Foot Supersonic Wind Tunnel (SWT) was conducted in May/June 2014 using an array of five supersonic wedge probes to verify the 1999 Calibration. This check calibration was necessary following a control systems upgrade and an integrated systems test (IST). This check calibration was required to verify the tunnel flow quality was unchanged by the control systems upgrade prior to the next test customer beginning their test entry. The previous check calibration of the tunnel occurred in 2007, prior to the Mars Science Laboratory test program. Secondary objectives of this test entry included the validation of the new Cobra data acquisition system (DAS) against the current Escort DAS and the creation of statistical process control (SPC) charts through the collection of series of repeated test points at certain predetermined tunnel parameters. The SPC charts secondary objective was not completed due to schedule constraints. It is hoped that this effort will be readdressed and completed in the near future.

SELF-MANAGEMENT COUNSELING IN PATIENTS WITH HEART FAILURE: PRIMARY RESULTS FROM THE HEART FAILURE ADHERENCE AND RETENTION TRIAL (HART)

PubMed Central

Powell, Lynda H.; Calvin, James E.; Richardson, Dejuran; Janssen, Imke; Mendes de Leon, Carlos F.; Flynn, Kristin J.; Grady, Kathleen L.; Rucker-Whitaker, Cheryl S.; Eaton, Claudia; Avery, Elizabeth

2013-01-01

Context Activating patients with heart failure (HF) to adhere to physician advice has not translated into clinical benefit, but past trials have had methodologic limitations. Objective To determine the value of self-management counseling plus HF education, over HF education alone, on the primary endpoint of death or HF hospitalization. Design, Setting, and Patients A single center behavioral efficacy trial in 902 patients with mild to moderate systolic or diastolic dysfunction, randomized between 2001–2004. Interventions All patients were offered 18 contacts and 18 HF educational tip sheets over the course of 1 year. Patients randomized to education received tip sheets in the mail and phone calls to check comprehension. Patients randomized to self-management received tip sheets in groups and were taught self-management skills to implement the advice. Main Outcome Measure Death or HF hospitalization, blindly adjudicated by cardiologists. Intent-to-treat results were analyzed as time-to-event and accelerated failure time models were used for non-proportional hazards. Results Patients were an average of 63.6 years, 47% female, 40% minority, 52% with family income <$30,000/year, and 23% with diastolic dysfunction. The self-management arm was no different from the education arm on the primary endpoint (Wilcoxon p=0.58). Post-hoc analyses on pre-specified subgroups revealed a significant income x treatment interaction (log-logistic estimate=0.64, p=0.02). Patients with income <$30,000 in self-management had a slower time to event than those in education (p=0.05) and were no different than higher income patients in either treatment arm. Conclusions The addition of self-management counseling to HF education does not reduce death or HF hospitalizations in patients with mild to moderate HF. Future trials should evaluate tailored outpatient HF management featuring ongoing education and comprehension checks for all, augmented by group-based skill development for those more economically disadvantaged. Such an approach may be a cost-effective, timely, and simple option for reducing HF costs. PMID:20858878

Science under Scrutiny

ERIC Educational Resources Information Center

Wright, Lynne

2003-01-01

Increasingly, coordinators are undertaking a scrutiny of work in order to check standards in their subjects. This is done frequently for English and mathematics, where annual targets for attainment in year 6 have to be set, but less so for science. Carrying out a scrutiny of work can be a daunting and time-consuming process. Faced with a pile of…

Conceptual Integration of Chemical Equilibrium by Prospective Physical Sciences Teachers

ERIC Educational Resources Information Center

Ganaras, Kostas; Dumon, Alain; Larcher, Claudine

2008-01-01

This article describes an empirical study concerning the mastering of the chemical equilibrium concept by prospective physical sciences teachers. The main objective was to check whether the concept of chemical equilibrium had become an integrating and unifying concept for them, that is to say an operational and functional knowledge to explain and…

Frequently Asked Questions about Pharmacogenomics

MedlinePlus

... the NHGRI's Talking Glossary of Genetic Terms Pharmacogenomics Fact Sheet [nigms.nih.gov] From the National Institute of General Medical Sciences What is pharmacogenomics? [ghr.nlm.nih.gov] From ...

Detecting and (not) dealing with plagiarism in an engineering paper: beyond CrossCheck-a case study.

PubMed

Zhang, Xin-xin; Huo, Zhao-lin; Zhang, Yue-hong

2014-06-01

In papers in areas such as engineering and the physical sciences, figures, tables and formulae are the basic elements to communicate the authors' core ideas, workings and results. As a computational text-matching tool, CrossCheck cannot work on these non-textual elements to detect plagiarism. Consequently, when comparing engineering or physical sciences papers, CrossCheck may return a low similarity index even when plagiarism has in fact taken place. A case of demonstrated plagiarism involving engineering papers with a low similarity index is discussed, and editor's experiences and suggestions are given on how to tackle this problem. The case shows a lack of understanding of plagiarism by some authors or editors, and illustrates the difficulty of getting some editors and publishers to take appropriate action. Consequently, authors, journal editors, and reviewers, as well as research institutions all are duty-bound not only to recognize the differences between ethical and unethical behavior in order to protect a healthy research environment, and also to maintain consistent ethical publishing standards.

Femtosecond laser ablated durable superhydrophobic PTFE sheet for oil/water separation

NASA Astrophysics Data System (ADS)

Li, Wentao; Yang, Qing; Chen, Feng; Yong, Jiale; Fang, Yao; Huo, Jinglan

2017-02-01

Femtosecond laser microfabrication has been attracting increasing interest of researchers in recent years, and been applied on interface science to control the wettability of solid surfaces. Herein, we fabricate a kind of rough microstructures on polytetrafluoroethylene (PTFE) sheet by femtosecond laser. The femtosecond laser ablated surfaces show durable superhydrophobicity and ultralow water adhesion even after storing in a harsh environment for a long time, including strong acid, strong alkali, and high temperature. A penetrating microholes array was further generated on the rough superhydrophobic PTFE sheet by a subsequent mechanical drilling process. The as-prepared material was successfully applied in the field of oil/water separation due to the inverse superhydrophobicity and superoleophilicity.

Does Saturn have rings outside 10 R(s)?

NASA Technical Reports Server (NTRS)

Cheng, A. F.; Lanzerotti, L. J.; Maclennan, C. G.

1985-01-01

Voyager ion and electron data in the energy range 30-1000 keV as measured by the Low Energy Charged Particle experiment are reviewed to check suggestions based on star occultation data that there are additional tenuous rings of Saturn beyond 10 Saturn radii from that planet. In the Voyager data, there is no convincing evidence for such ring matter. Features in the charged particle fluxes in the regions in question are more readily explained by temporal variations and/or spatial structure unrelated to ring matter, such as the mantle on the dayside and/or detached plasma sheets.

The First Annual West Antarctic Ice Sheet (WAIS) Science Workshop

NASA Technical Reports Server (NTRS)

Bindschadler, Robert A. (Editor)

1993-01-01

A compilation of abstracts presented at the workshop are presented. The goal was to answer the question, what is the future behavior and potential for rapid collapse of the West Antarctic Ice Sheet (WAIS)? The workshop was organized into four sessions corresponding to the four objectives identified as necessary to reach the WAIS workshop goal: history, current behavior, internal dynamics, and environmental interactions. Presentations were organized by their relevance to each objective, rather than by discipline.

Tearing Instability of a Current Sheet Forming by Sheared Incompressible Flow

NASA Astrophysics Data System (ADS)

Tolman, Elizabeth; Loureiro, Nuno; Uzdensky, Dmitri

2017-10-01

Sweet-Parker current sheets are unstable to the tearing mode, suggesting they will not form in physical systems. Understanding magnetic reconnection thus requires study of the stability of a current sheet as it forms. Such formation can occur as a result of sheared, sub-Alfvénic incompressible flows into and along the sheet. This work presents an analysis of how tearing perturbations behave in a current sheet forming under the influence of such flows, beginning with a phase when the growth rate of the tearing mode is small and the behavior of perturbations is primarily governed by ideal MHD. Later, after the tearing growth rate becomes significant relative to the time scale of the driving flows, the flows cause a slight reduction in the tearing growth rate and wave vector of the dominant mode. Once the tearing mode enters the nonlinear regime, the flows accelerate the tearing growth slightly; during X-point collapse, the flows have negligible effect on the system behavior. This analysis allows greater understanding of reconnection in evolving systems and increases confidence in the application of tools developed in time-independent current sheets to changing current sheets. This material is based upon work supported by the National Science Foundation Graduate Research Fellowship.

National Center for Environmental Health

MedlinePlus

... Environmental Hazards and Health Effects Division of Laboratory Sciences Publications & Products Books/Booklets Healthy Housing Reference Manual Healthy Housing Inspection Manual Fact Sheets Training File Formats Help: How do I ...

ICESat's First Year of Measurements Over the Polar Ice Sheets

NASA Astrophysics Data System (ADS)

Shuman, C. A.

2004-05-01

NASA's Ice, Cloud and Land Elevation Satellite (ICESat) mission was developed to measure changes in elevation of the Greenland and Antarctic ice sheets. Its primary mission goal is to significantly refine estimates of polar ice sheet mass balance. Obtaining precise, spatially dense, ice sheet elevations through time is the first step towards this goal. ICESat data will then enable study of associations between observed ice changes and dynamic or climatic forcing factors, and thus enable improved estimation of the present and future contributions of the ice sheets to global sea level rise. ICESat was launched on January 12, 2003 and acquired science data from February 20th to March 29th with the first of the three lasers of the Geoscience Laser Altimeter System (GLAS). Data acquisition with the second laser began on September 25th and continued until November 18th, 2003. For one-year change detection, the second laser is scheduled for operation from approximately February 17th to March 20th, 2004. Additional operational periods will be selected to 1) enable periodic measurements through the year, and 2) to support of other NASA Earth Science Enterprise missions and activities. To obtain these precise ice sheet elevations, GLAS has a 1064 nm wavelength laser operating at 40 Hz with a designed range precision of about 10 cm. The laser footprints are about 70 m in diameter on the Earth's surface and are spaced every 172 m along-track. The on-board GPS receiver enables radial orbit determinations to an accuracy better than 5 cm. The star-tracking attitude-determination system will enable laser footprints to be located to 6 m horizontally when attitude calibration is completed. The orbital altitude averages 600 km at an inclination of 94 degrees with coverage extending from 86 degrees N and S latitude. The spacecraft attitude can be controlled to point the laser beam to within 50 m of surface reference tracks over the ice sheets and to point off-nadir up to 5 degrees to targets of interest. ICESat was designed to operate for 3 to 5 years but laser lifetime is uncertain and may not achieve this goal based on a detailed review following the failure of Laser 1. However, the results from the first full year of ICESat operations demonstrate that the GLAS instrument can measure ice sheet elevations with unprecedented accuracy. This presentation will show ice sheet results using crossover and exact repeat track analyses. Additional data using the remaining lasers will further demonstrate the capability to measure ice sheet elevation changes and improve mass balance assessments of the great polar ice sheets.

SEA-LEVEL RISE. Sea-level rise due to polar ice-sheet mass loss during past warm periods.

PubMed

Dutton, A; Carlson, A E; Long, A J; Milne, G A; Clark, P U; DeConto, R; Horton, B P; Rahmstorf, S; Raymo, M E

2015-07-10

Interdisciplinary studies of geologic archives have ushered in a new era of deciphering magnitudes, rates, and sources of sea-level rise from polar ice-sheet loss during past warm periods. Accounting for glacial isostatic processes helps to reconcile spatial variability in peak sea level during marine isotope stages 5e and 11, when the global mean reached 6 to 9 meters and 6 to 13 meters higher than present, respectively. Dynamic topography introduces large uncertainties on longer time scales, precluding robust sea-level estimates for intervals such as the Pliocene. Present climate is warming to a level associated with significant polar ice-sheet loss in the past. Here, we outline advances and challenges involved in constraining ice-sheet sensitivity to climate change with use of paleo-sea level records. Copyright © 2015, American Association for the Advancement of Science.

The Glacier and Land Ice Surface Topography Interferometer (GLISTIN): A Novel Ka-band Digitally Beamformed Interferometer

NASA Technical Reports Server (NTRS)

Moller, Delwyn K.; Heavey, Brandon; Hodges, Richard; Rengarajan, Sembiam; Rignot, Eric; Rogez, Francois; Sadowy, Gregory; Simard, Marc; Zawadzki, Mark

2006-01-01

The estimation of the mass balance of ice sheets and glaciers on Earth is a problem of considerable scientific and societal importance. A key measurement to understanding, monitoring and forecasting these changes is ice-surface topography, both for ice-sheet and glacial regions. As such NASA identified 'ice topographic mapping instruments capable of providing precise elevation and detailed imagery data for measurements on glacial scales for detailed monitoring of ice sheet, and glacier changes' as a science priority for the most recent Instrument Incubator Program (IIP) opportunities. Funded under this opportunity is the technological development for a Ka-Band (35GHz) single-pass digitally beamformed interferometric synthetic aperture radar (InSAR). Unique to this concept is the ability to map a significant swath impervious of cloud cover with measurement accuracies comparable to laser altimeters but with variable resolution as appropriate to the differing scales-of-interest over ice-sheets and glaciers.

USEEIO Satellite Tables

EPA Pesticide Factsheets

These files contain the environmental data as particular emissions or resources associated with a BEA sectors that are used in the USEEIO model. They are organized by the emission or resources type, as described in the manuscript. The main files (without SI) show the final satellite tables in the 'Exchanges' sheet which have emissions or resource use per USD for 2013. The other sheets in these files provide meta data for the create of the tables, including general information, sources, etc. The 'export' sheet is used for saving the satellite table for csv export. The data dictionary describes the fields in this sheet. The supporting files provide all the details data transformation and organization for the development of the satellite tables.This dataset is associated with the following publication:Yang, Y., W. Ingwersen, T. Hawkins, and D. Meyer. USEEIO: a New and Transparent United States Environmentally Extended Input-Output Model. JOURNAL OF CLEANER PRODUCTION. Elsevier Science Ltd, New York, NY, USA,

Beating the Heat: Fast Scanning Melts Beta Sheet Crystals

NASA Astrophysics Data System (ADS)

Cebe, Peggy; Hu, Xiao; Kaplan, David; Zhuravlev, Evgeny; Wurm, Andreas; Arbeiter, Daniella; Schick, Christoph

2014-03-01

Beta-pleated-sheet crystals are among the most stable of protein secondary structures, and are responsible for the remarkable physical properties of many fibrous proteins, such as silk. Previous thinking was that beta-pleated-sheet crystals in the dry solid state would not melt upon input of heat energy alone. Indeed, at conventional heating rates (~1-50 °C/min), silk exhibits its glass transition (~175 °C), followed by cold crystallization, and then by immediate thermal degradation beginning at about 225 °C. Here we demonstrate that beta-pleated-sheet crystals can melt directly from the solid state to become random coils, helices, and turns. We use fast scanning chip calorimetry at 2,000 K/s to avoid thermal degradation, and report the first reversible thermal melting of protein beta-pleated-sheet crystals, exemplified by silk fibroin. The similarity between thermal melting behavior of lamellar crystals of synthetic polymers and beta-pleated-sheet crystals is confirmed. The authors acknowledge support from the National Science Foundation and German Academic Exchange Service DAAD; EZ acknowledges a European Union funded Marie Curie EST fellowship (ADVATEC); XH and DK acknowledge NIH P41 Tissue Engineering Resource Center.

Using the Genetics Home Reference Website

MedlinePlus

... and gene therapy. ( medlineplus.gov/genesandgenetherapy.html ) The fact sheet Gene Therapy from the U.S. Department of Energy Office of Science offers an overview of this topic. ( http://genomics. ...

Ice Bridge Antarctic Sea Ice

NASA Image and Video Library

2009-10-21

Sea ice is seen out the window of NASA's DC-8 research aircraft as it flies 2,000 feet above the Bellingshausen Sea in West Antarctica on Wednesday, Oct., 21, 2009. This was the fourth science flight of NASA’s Operation Ice Bridge airborne Earth science mission to study Antarctic ice sheets, sea ice, and ice shelves. Photo Credit: (NASA/Jane Peterson)

Fermilab | Science | Inquiring Minds | The science of matter, space and

Science.gov Websites

Contact Phone Book Newsroom Newsroom News and features Press releases Photo gallery Fact sheets and process For the media Video of shutdown event Guest book Tevatron Impact June 11, 2012 About the symposium Security, Privacy, Legal Use of Cookies Quick Links Home Contact Phone Book Fermilab at Work For Industry

Fuels planning: science synthesis and integration; fact sheet: The Fuels Synthesis Project overview

Treesearch

Rocky Mountain Research Station USDA Forest Service

2004-01-01

The geographic focus of the "Fuels Planning: Science Synthesis and Integration" project #known as the Fuels Synthesis Project# is on the dry forests of the Western United States. Target audiences include fuels management specialists, resource specialists, National Environmental Policy Act #NEPA# planning team leaders, line officers in the USDA Forest Service...

Energy Storage. Teachers Guide. Science Activities in Energy.

ERIC Educational Resources Information Center

Jacobs, Mary Lynn, Ed.

Included in this science activities energy package for students in grades 4-10 are 12 activities related to energy storage. Each activity is outlined on the front and back of a single sheet and is introduced by a key question. Most of the activities can be completed in the classroom with materials readily available in any community. Among the…

The Student Actions Coding Sheet (SACS): An Instrument for Illuminating the Shifts toward Student-Centered Science Classrooms

ERIC Educational Resources Information Center

Erdogan, Ibrahim; Campbell, Todd; Abd-Hamid, Nor Hashidah

2011-01-01

This study describes the development of an instrument to investigate the extent to which student-centered actions are occurring in science classrooms. The instrument was developed through the following five stages: (1) student action identification, (2) use of both national and international content experts to establish content validity, (3)…

Acquired Cystic Kidney Disease

MedlinePlus

... Catherine Kelleher, M.D., University of Colorado Health Sciences Center, Denver. About the Kidney Failure Series The NIDDK Kidney Failure Series includes booklets and fact sheets that can help you learn more about ...

Air Pollution Monitoring for Communities Fact Sheet

EPA Pesticide Factsheets

EPA through its Science to Achieve Results (STAR) grants program is providing funding to six institutions that will advance air monitoring technology while helping communities address unique air quality challenges.

78 FR 43909 - Proposed Flood Hazard Determinations

Federal Register 2010, 2011, 2012, 2013, 2014

2013-07-22

..., and other pertinent sciences established to review conflicting scientific and technical data and... http://floodsrp.org/pdfs/srp_fact_sheet.pdf . The watersheds and/or communities affected are listed in...

78 FR 43910 - Proposed Flood Hazard Determinations

Federal Register 2010, 2011, 2012, 2013, 2014

2013-07-22

..., and other pertinent sciences established to review conflicting scientific and technical data and... http://floodsrp.org/pdfs/srp_fact_sheet.pdf . The watersheds and/or communities affected are listed in...

78 FR 43906 - Proposed Flood Hazard Determinations

Federal Register 2010, 2011, 2012, 2013, 2014

2013-07-22

... sciences established to review conflicting scientific and technical data and provide recommendations for....org/pdfs/srp_fact_sheet.pdf . The watersheds and/or communities affected are listed in the tables...

Sustainability

Science.gov Websites

Book Newsroom Newsroom News and features Press releases Photo gallery Fact sheets and brochures Media Science Security, Privacy, Legal Use of Cookies Quick Links Home Contact Phone Book Fermilab at Work For

Evaluating Educational Groups' Function of High Schools in Tehran on the Basis of Krek Patrick

ERIC Educational Resources Information Center

Banoofatemeh, Mohadeseh Sadat; Bijandi, Mohammad Sadegh; Parasteh, Fatemeh

2017-01-01

Nowadays, checking human sciences situation in valuation educational system in Iran is very important. They who educated in Iran's educational system, then tested higher education one of the most sophisticated countries, find well that one of the most important distinctions between two systems is difference of situation and human science value.…

77 FR 64494 - Environmental Management Site-Specific Advisory Board, Oak Ridge Reservation

Federal Register 2010, 2011, 2012, 2013, 2014

2012-10-22

...: Department of Energy Information Center, Office of Science and Technical Information, 1 Science.gov Way, Oak...-3315; Fax (865) 576-0956 or email: [email protected]gov or check the Web site at www.oakridge.doe.gov/em... following Web site: http://www.oakridge.doe.gov/em/ssab/minutes.htm . [[Page 64495

78 FR 23241 - Environmental Management Site-Specific Advisory Board, Oak Ridge Reservation

Federal Register 2010, 2011, 2012, 2013, 2014

2013-04-18

... of Energy Information Center, Office of Science and Technical Information, 1 Science.gov Way, Oak...-3315; Fax (865) 576-0956 or email: [email protected]gov or check the Web site at www.oakridge.doe.gov/em... also be available at the following Web site: http://www.oakridge.doe.gov/em/ssab/minutes.htm . Issued...

77 FR 49442 - Environmental Management Site-Specific Advisory Board, Oak Ridge Reservation

Federal Register 2010, 2011, 2012, 2013, 2014

2012-08-16

...: Department of Energy Information Center, Office of Science and Technical Information, 1 Science.gov Way, Oak...-3315; Fax (865) 576-0956 or email: [email protected]gov or check the Web site at www.oakridge.doe.gov/em... following Web site: http://www.oakridge.doe.gov/em/ssab/minutes.htm . [[Page 49443

Scripting to Enhance University Students' Critical Thinking in Flipped Learning: Implications of the Delayed Effect on Science Reading Literacy

ERIC Educational Resources Information Center

Lee, Yuan-Hsuan

2018-01-01

Premised on Web 2.0 technology, the current study investigated the effect of facilitating critical thinking using the Collaborative Questioning, Reading, Answering, and Checking (C-QRAC) collaboration script on university students' science reading literacy in flipped learning conditions. Participants were 85 Taiwanese university students recruited…

Operations Manager Tim Miller checks out software for the Airborne Synthetic Aperature Radar (AIRSAR

NASA Technical Reports Server (NTRS)

1998-01-01

Tim Miller checks out software for the Airborne Synthetic Aperture Radar (AIRSAR). He was the AIRSAR operations manager for NASA's Jet Propulsion Laboratory. The AIRSAR produces imaging data for a range of studies conducted by the DC-8. NASA is using a DC-8 aircraft as a flying science laboratory. The platform aircraft, based at NASA's Dryden Flight Research Center, Edwards, Calif., collects data for many experiments in support of scientific projects serving the world scientific community. Included in this community are NASA, federal, state, academic and foreign investigators. Data gathered by the DC-8 at flight altitude and by remote sensing have been used for scientific studies in archeology, ecology, geography, hydrology, meteorology, oceanography, volcanology, atmospheric chemistry, soil science and biology.

Superplastic Behavior of Ti-6Al-4V-0.1B Alloy (Preprint)

DTIC Science & Technology

2011-10-01

Scott (UES, Inc.) for help with running the high temperature tension tests. The Ti-6Al-4V-0.1B sheets used in this study were fabricated in...collaboration with Scott Reed (Flowserve) and Oscar Yu (RTI) under EMTEC Project CT-86. 6 Approved for public release; distribution unlimited. References...Sun, M. Bennett, and J.M. Scott , “Production of Plates and Sheets from As-Cast Ti-6Al-4V via Boron Modification”, in: Ti-2007 Science and Technology

VISL: A Virtual Ice Sheet Laboratory For Outreach and K-12 Education

NASA Astrophysics Data System (ADS)

Halkides, D. J.; Larour, E. Y.; Cheng, D. L.; Perez, G.; Romero, V.; Saks, O.

2014-12-01

We present a prototype Virtual Ice Sheet Laboratory (VISL) geared to K-12 classrooms and the general public, with the goal of improving climate literacy, especially in regards to the crucial role of the polar ice sheets in Earth's climate and sea level. VISL will allow users to perform guided experiments using the Ice Sheet System Model (ISSM), a state-of-the-art ice flow model developed at NASA's Jet Propulsion Laboratory and UC Irvine that simulates the near-term evolution of the ice sheets on Greenland and Antarctica. VISL users will access ISSM via a graphical interface that can be launched from a web browser on a computer, tablet or smart phone. Users select climate conditions and run time by moving graphic sliders then watch how a given region evolves in time under those conditions. Lesson plans will include conceptual background, instructions for table top experiments related to the concepts addressed in a given lesson, and a guide for performing model experiments and interpreting their results. Activities with different degrees of complexity will aim for consistency with NGSS Physical Science criteria for different grade bands (K-2, 3-5, 6-8, and 9-12), although they will not be labeled as such to encourage a broad user base. Activities will emphasize the development of physical intuition and critical thinking skills, understanding conceptual and computational models, as well as observation recording, concept articulation, hypothesis formulation and testing, and mathematical analysis. At our present phase of development, we seek input from the greater science education and outreach communities regarding VISL's planned content, as well as additional features and topic areas that educators and students would find useful.

VISL: A Virtual Ice Sheet Laboratory For Outreach and K-12 Education

NASA Astrophysics Data System (ADS)

Cheng, D. L. C.; Halkides, D. J.; Larour, E. Y.; Moore, J.; Dunn, S.; Perez, G.

2015-12-01

We present an update on our developing Virtual Ice Sheet Laboratory (VISL). Geared to K-12 classrooms and the general public, VISL's main goal is to improve climate literacy, especially in regards to the crucial role of the polar ice sheets in Earth's climate and sea level. VISL will allow users to perform guided experiments using the Ice Sheet System Model (ISSM), a state-of-the-art ice flow model developed at NASA's Jet Propulsion Laboratory and UC Irvine that simulates the near-term evolution of the ice sheets on Greenland and Antarctica. VISL users will access ISSM via a graphical interface that can be launched from a web browser on a computer, tablet or smart phone. Users select climate conditions and run time by moving graphic sliders then watch how a given region evolves in time under those conditions. Lesson plans will include conceptual background, instructions for table top experiments related to the concepts addressed in a given lesson, and a guide for performing model experiments and interpreting their results. Activities with different degrees of complexity will aim for consistency with NGSS Physical Science criteria for different grade bands (K-2, 3-5, 6-8, and 9-12), although they will not be labeled as such to encourage a broad user base. Activities will emphasize the development of physical intuition and critical thinking skills, understanding conceptual and computational models, as well as observation recording, concept articulation, hypothesis formulation and testing, and mathematical analysis. At our present phase of development, we seek input from the greater science education and outreach communities regarding VISL's planned content, as well as additional features and topic areas that educators and students would find useful.

78 FR 43908 - Proposed Flood Hazard Determinations

Federal Register 2010, 2011, 2012, 2013, 2014

2013-07-22

... other pertinent sciences established to review conflicting scientific and technical data and provide...://floodsrp.org/pdfs/srp_fact_sheet.pdf . The watersheds and/or communities affected are listed in the tables...

78 FR 20939 - Proposed Flood Hazard Determinations

Federal Register 2010, 2011, 2012, 2013, 2014

2013-04-08

... panels of experts in hydrology, hydraulics, and other pertinent sciences established to review... regarding the SRP process can be found online at http://floodsrp.org/pdfs/srp_fact_sheet.pdf . The...

HealthLines: Heart-Safe Exercise

MedlinePlus

... funded by the National Institute of Environmental Health Sciences and the National Institute of Allergy and Infectious Diseases. Check Out Health-Helpful Web Sites MedlinePlus.gov and other NIH Web sites ...

West elevation. San Bernardino Valley Union Junior College, Science Building. ...

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

West elevation. San Bernardino Valley Union Junior College, Science Building. Also includes plan of entrance, section EE showing tiling and typical transom design, and a full size detail of a door jamb for inside concrete walls. Howard E. Jones, Architect, San Bernardino, California. Sheet 7, job no. 311. Scale 1.2 inch to the foot. February 15, 1927. - San Bernardino Valley College, Life Science Building, 701 South Mount Vernon Avenue, San Bernardino, San Bernardino County, CA

Survey of the plasma electron environment of Jupiter: A view from Voyager

NASA Technical Reports Server (NTRS)

Scudder, J. D.; Sittler, E. C., Jr.; Bridge, H. S.

1980-01-01

The plasma environment within Jupiter's bow shock is considered in terms of the in situ, calibrated electron plasma measurements made between 10 eV and 5.95 keV by the Voyager plasma science experiment (PLS). Measurements were analyzed and corrected for spacecraft potential variations; the data were reduced to nearly model independent macroscopic parameters of the local electron density and temperature. It is tentatively concluded that the radial temperature profile within the plasma sheet is caused by the intermixing of two different electron populations that probably have different temporal histories and spatial paths to their local observation. The cool plasma source of the plasma sheet and spikes is probably the Io plasma torus and arrives in the plasma sheet as a result of flux tube interchange motions or other generalized transport which can be accomplished without diverting the plasma from the centrifugal equator. The hot suprathermal populations in the plasma sheet have most recently come from the sparse, hot mid-latitude "bath" of electrons which were directly observed juxtaposed to the plasma sheet.

Expedition Seven Lu with EMU in Quest airlock

NASA Image and Video Library

2003-09-05

ISS007-E-14470 (5 September 2003) --- Astronaut Edward T. Lu, Expedition 7 NASA ISS science officer and flight engineer, performs routine maintenance on an Extravehicular Mobility Unit (EMU) space suit in the Quest airlock on the International Space Station (ISS). The work represents a mid-term checkout and included emptying and refilling the suit’s water tank and loops, cycling relief valves, checking sensors and collecting data, a leak check and running the suit’s fan for two hours to lubricate it.

Expedition Seven Lu with EMU in Quest airlock

NASA Image and Video Library

2003-09-05

ISS007-E-14473 (5 September 2003) --- Astronaut Edward T. Lu, Expedition 7 NASA ISS science officer and flight engineer, performs routine maintenance on an Extravehicular Mobility Unit (EMU) space suit in the Quest airlock on the International Space Station (ISS). The work represents a mid-term checkout and included emptying and refilling the suit’s water tank and loops, cycling relief valves, checking sensors and collecting data, a leak check and running the suit’s fan for two hours to lubricate it.

Expedition Seven Lu with EMU in Quest airlock

NASA Image and Video Library

2003-09-05

ISS007-E-14469 (5 September 2003) --- Astronaut Edward T. Lu, Expedition 7 NASA ISS science officer and flight engineer, performs routine maintenance on an Extravehicular Mobility Unit (EMU) space suit in the Quest airlock on the International Space Station (ISS). The work represents a mid-term checkout and included emptying and refilling the suit’s water tank and loops, cycling relief valves, checking sensors and collecting data, a leak check and running the suit’s fan for two hours to lubricate it.

Expedition Seven Lu with EMU in Quest airlock

NASA Image and Video Library

2003-09-05

ISS007-E-14472 (5 September 2003) --- Astronaut Edward T. Lu, Expedition 7 NASA ISS science officer and flight engineer, performs routine maintenance on an Extravehicular Mobility Unit (EMU) space suit in the Quest airlock on the International Space Station (ISS). The work represents a mid-term checkout and included emptying and refilling the suit’s water tank and loops, cycling relief valves, checking sensors and collecting data, a leak check and running the suit’s fan for two hours to lubricate it.

Mechanical verification of a schematic Byzantine clock synchronization algorithm

NASA Technical Reports Server (NTRS)

Shankar, Natarajan

1991-01-01

Schneider generalizes a number of protocols for Byzantine fault tolerant clock synchronization and presents a uniform proof for their correctness. The authors present a machine checked proof of this schematic protocol that revises some of the details in Schneider's original analysis. The verification was carried out with the EHDM system developed at the SRI Computer Science Laboratory. The mechanically checked proofs include the verification that the egocentric mean function used in Lamport and Melliar-Smith's Interactive Convergence Algorithm satisfies the requirements of Schneider's protocol.

Fermilab Education Office - Physicists

Science.gov Websites

groups: Science Adventures Group Teacher Resource Center Group Twitter Fermilab Education Office For more Fermilab news, follow Fermilab on Facebook and Twitter. Check out Teacher Workshops Get FermiGear! Tweets

Ice Bridge Antarctic Sea Ice

NASA Image and Video Library

2009-10-21

An iceberg is seen out the window of NASA's DC-8 research aircraft as it flies 2,000 feet above the Amundsen Sea in West Antarctica on Wednesday, Oct., 21, 2009. This was the fourth science flight of NASA’s Operation Ice Bridge airborne Earth science mission to study Antarctic ice sheets, sea ice, and ice shelves. Photo Credit: (NASA/Jane Peterson)

Microgravity science and applications: Apparatus and facilities

NASA Technical Reports Server (NTRS)

1989-01-01

NASA support apparatus and facilities for microgravity research are summarized in fact sheets. The facilities are ground-based simulation environments for short-term experiments, and the shuttle orbiter environment for long duration experiments. The 17 items of the microgravitational experimental apparatus are described. Electronic materials, alloys, biotechnology, fluid dynamics and transport phenomena, glasses and ceramics, and combustion science are among the topics covered.

South elevation and main floor plan. San Bernardino Valley Union ...

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

South elevation and main floor plan. San Bernardino Valley Union Junior College, Science Building. Includes chemistry and botany departments. Howard E. Jones, Architect, San Bernardino, California. Sheet 2, job no. 311. Scale 1/8 inch to the foot. February 15, 1927. - San Bernardino Valley College, Life Science Building, 701 South Mount Vernon Avenue, San Bernardino, San Bernardino County, CA

Keys to a successful project: Associated data and planning: Data standards. Chapter 5 in Measuring and monitoring biological diversity: Standard methods for amphibians

USGS Publications Warehouse

McDiarmid, Roy W.; Heyer, W. Ronald; Donnelly, Maureen A.; McDiarmid, Roy W.; Hayek, Lee-Ann C.; Foster, Mercedes S.

1994-01-01

The many individual salamanders, frogs, caecilians, and their larvae encountered during the course of an inventory or monitoring project will have to be identified to species. Depending on the goals and sampling method(s) used, some individuals will be identified from a distance by their calls, others will be handled. At the same time, some will be marked for recapture, and others will be sampled as vouchers. For each, certain minimum data should be recorded. In this section, data pertaining to locality and sampling methodology are considered, information on microhabitats and specimen vouchers is covered in sections that follow. I feel strongly that the data outlined here should be the minimum for any project. Investigators with specific goals may require additional types of data as well.Standardized, printed sheets containing the required data categories provide a convenient, inexpensive, and effective way to ensure that all the desired information is recorded in a consistent format, Data sheets should be well organized, printed on good-quality paper (75%-100% cotton content) and include extra space (e.g., other side of sheet) for notes that do not fit preestablished categoriesData should be recorded in the field with permanent (waterproof) ink as simply and directly as possible. I strongly recommend against the use of data codes in the field; it is too easy to forget codes or to enter the wrong code. Original data sheets can be photocopied for security, but they should not be copied by hand. If data are to be coded for computer analysis, the original or photocopied sheets should be used for data entry to minimize transcription errors. Some workers prefer recording information on small tape recorders; this also works well if a list of the standard data categories is checked during taping to ensure that all required information is recorded. Information recorded on tapes should be transcribed to data sheets or into a computer within 24 hours of the sample.

Failure prediction of thin beryllium sheets used in spacecraft structures

NASA Technical Reports Server (NTRS)

Roschke, Paul N.; Mascorro, Edward; Papados, Photios; Serna, Oscar R.

1991-01-01

The primary objective of this study is to develop a method for prediction of failure of thin beryllium sheets that undergo complex states of stress. Major components of the research include experimental evaluation of strength parameters for cross-rolled beryllium sheet, application of the Tsai-Wu failure criterion to plate bending problems, development of a high order failure criterion, application of the new criterion to a variety of structures, and incorporation of both failure criteria into a finite element code. A Tsai-Wu failure model for SR-200 sheet material is developed from available tensile data, experiments carried out by NASA on two circular plates, and compression and off-axis experiments performed in this study. The failure surface obtained from the resulting criterion forms an ellipsoid. By supplementing experimental data used in the the two-dimensional criterion and modifying previously suggested failure criteria, a multi-dimensional failure surface is proposed for thin beryllium structures. The new criterion for orthotropic material is represented by a failure surface in six-dimensional stress space. In order to determine coefficients of the governing equation, a number of uniaxial, biaxial, and triaxial experiments are required. Details of these experiments and a complementary ultrasonic investigation are described in detail. Finally, validity of the criterion and newly determined mechanical properties is established through experiments on structures composed of SR200 sheet material. These experiments include a plate-plug arrangement under a complex state of stress and a series of plates with an out-of-plane central point load. Both criteria have been incorporated into a general purpose finite element analysis code. Numerical simulation incrementally applied loads to a structural component that is being designed and checks each nodal point in the model for exceedance of a failure criterion. If stresses at all locations do not exceed the failure criterion, the load is increased and the process is repeated. Failure results for the plate-plug and clamped plate tests are accurate to within 2 percent.

Balance of the West Antarctic Ice Sheet

NASA Technical Reports Server (NTRS)

2002-01-01

For several decades, measurements of the West Antarctic Ice Sheet showed it to be retreating rapidly. But new data derived from satellite-borne radar sensors show the ice sheet to be growing. Changing Antarctic ice sheets remains an area of high scientific interest, particularly in light of recent global warming concerns. These new findings are significant because scientists estimate that sea level would rise 5-6 meters (16-20 feet) if the ice sheet collapsed into the sea. Do these new measurements signal the end of the ice sheet's 10,000-year retreat? Or, are these new satellite data simply much more accurate than the sparse ice core and surface measurements that produced the previous estimates? Another possibility is that the ice accumulation may simply indicate that the ice sheet naturally expands and retreats in regular cycles. Cryologists will grapple with these questions, and many others, as they examine the new data. The image above depicts the region of West Antarctica where scientists measured ice speed. The fast-moving central ice streams are shown in red. Slower tributaries feeding the ice streams are shown in blue. Green areas depict slow-moving, stable areas. Thick black lines depict the areas that collect snowfall to feed their respective ice streams. Reference: Ian Joughin and Slawek Tulaczyk Science Jan 18 2002: 476-480. Image courtesy RADARSAT Antarctic Mapping Project

The GLAS Science Algorithm Software (GSAS) Detailed Design Document Version 6. Volume 16

NASA Technical Reports Server (NTRS)

Lee, Jeffrey E.

2013-01-01

The Geoscience Laser Altimeter System (GLAS) is the primary instrument for the ICESat (Ice, Cloud and Land Elevation Satellite) laser altimetry mission. ICESat was the benchmark Earth Observing System (EOS) mission for measuring ice sheet mass balance, cloud and aerosol heights, as well as land topography and vegetation characteristics. From 2003 to 2009, the ICESat mission provided multi-year elevation data needed to determine ice sheet mass balance as well as cloud property information, especially for stratospheric clouds common over polar areas. It also provided topography and vegetation data around the globe, in addition to the polar-specific coverage over the Greenland and Antarctic ice sheets.This document describes the detailed design of GLAS Science Algorithm Software (GSAS). The GSAS is used to create the ICESat GLAS standard data products. The National Snow and Ice Data Center (NSDIC) distribute these products. The document contains descriptions, flow charts, data flow diagrams, and structure charts for each major component of the GSAS. The purpose of this document is to present the detailed design of the GSAS. It is intended as a reference source to assist the maintenance programmer in making changes that fix or enhance the documented software.

Correct calibration procedure for the Q-switched ruby laser and checking the treatment irradiation pattern

PubMed Central

Ohshiro, Takafumi; Sasaki, Katsumi; Takenouchi, Kiyofumi; Kozuma, Mituaki; Ohshiro, Naoyuki; Kageyama, Yuichi

2013-01-01

Background and aims: There are many Q-switched lasers. The Q-switched ruby laser is the one most popularly used in dermatology, aesthetic surgery and plastic surgery, to remove pigmented lesions or tattoos. Correct and regular calibration of such a system is essential. However, some clinics fail to perform this with the excuse of having no measuring instrument (MI) in their offices or treatment rooms in some of their hospitals or clinics, or even the case of well-known medical universities in Japan. The present article explains the precise calibration procedure and beam pattern checking for the Q-switched ruby systems in the first author's clinic. Rationale: In the case of treatment with a medical laser, the calibration and the irradiated pattern (IP) check of the laser being used for treatment are the most important factors for treatment efficacy and safety. If these factors change, the treatment result could be different from that expected. Such kind of data are not acceptable as scientific information for a presentation or published paper. With such unreliable results and incorrect beam pattern, replicating such a study would be impossible Regular calibration check: In our clinic, we have 2 Q-switched ruby laser systems. On a daily basis, the beam patterns, both the optical axis of the beam and its treatment footprint, are checked on dedicated printed sheets and footprint paper, respectively, at the beginning of the day and after the last procedure. Every two weeks we calibrate our systems in-house using a precise MI. Every six months we calibrate the systems in-house with the MI, and then we send the systems back to the manufacturers for calibration. Once every year, we have our MI calibrated by an accredited facility in Japan. In this way, we are not only ensuring accurate and safe treatment for our patients, but we are also producing accurate system and treatment data which can be replicated by others, the basis of evidence-based medicine. PMID:24204090

IDEAS.

ERIC Educational Resources Information Center

Young, Sharon L., Ed.

1990-01-01

Included are five activities which focus on using and interpreting data about popcorn. The integration of mathematics with science, health and social studies is stressed. Each activity includes procedures, a reproducible activity sheet, and several suggestions for extension activities. (CW)

76 FR 39072 - Proposed Information Collection; Comment Request; Pacific Albacore Logbook

Federal Register 2010, 2011, 2012, 2013, 2014

2011-07-05

... and Atmospheric Administrations, Southwest Fisheries Science Center operates a Pacific Albacore Data... of a front page form that collects vessel characteristics and a log sheet form that collects daily...

Human Health Risk Assessment Research Overview Fact Sheet

EPA Pesticide Factsheets

HHRA products include peer reviewed human health assessments for individual chemicals and chemical mixtures; integrated science assessments for criteria air pollutants; rapid risk assessments, and technical support to meet partner and stakeholder needs.

Facilities Engineering Services Section

Science.gov Websites

Book Newsroom Newsroom News and features Press releases Photo gallery Fact sheets and brochures Media Science Security, Privacy, Legal Use of Cookies Quick Links Home Contact Phone Book Fermilab at Work For

Tractor/Lawn Mower | News

Science.gov Websites

Book Newsroom Newsroom News and features Press releases Photo gallery Fact sheets and brochures Media Science Security, Privacy, Legal Use of Cookies Quick Links Home Contact Phone Book Fermilab at Work For

Bioculture System

NASA Technical Reports Server (NTRS)

Figliozzi, Gianine; Sato, Kevin Y.; Sun. Sidney

2013-01-01

The document is a 2 page fact sheet that describes the Bioculture system, how it may be used by researchers for life science research, how and when it will be installed and validated aboard the international space station.

78 FR 63171 - Environmental Management Site-Specific Advisory Board, Oak Ridge Reservation; Meeting

Federal Register 2010, 2011, 2012, 2013, 2014

2013-10-23

...: Department of Energy Information Center, Office of Science and Technical Information, 1 Science.gov Way, Oak...-3315; Fax (865) 576-0956 or email: [email protected]gov or check the Web site at www.oakridge.doe.gov/em... above. Minutes will also be available at the following Web site: http://www.oakridge.doe.gov/em/ssab...

78 FR 49738 - Environmental Management Site-Specific Advisory Board, Oak Ridge Reservation

Federal Register 2010, 2011, 2012, 2013, 2014

2013-08-15

...: Department of Energy Information Center, Office of Science and Technical Information, 1 Science.gov Way, Oak...-3315; Fax (865) 576-0956 or email: n[email protected]gov or check the Web site at www.oakridge.doe.gov/em... following Web site: http://www.oakridge.doe.gov/em/ssab/board-minutes.html . Issued at Washington, DC, on...

78 FR 58292 - Environmental Management Site-Specific Advisory Board, Oak Ridge Reservation

Federal Register 2010, 2011, 2012, 2013, 2014

2013-09-23

...: Department of Energy Information Center, Office of Science and Technical Information, 1 Science.gov Way, Oak...-3315; Fax (865) 576-0956 or email: [email protected]gov or check the Web site at www.oakridge.doe.gov/em... above. Minutes will also be available at the following Web site: http://www.oakridge.doe.gov/em/ssab...

77 FR 58364 - Environmental Management Site-Specific Advisory Board, Oak Ridge Reservation

Federal Register 2010, 2011, 2012, 2013, 2014

2012-09-20

...: Department of Energy Information Center, Office of Science and Technical Information, 1 Science.gov Way, Oak...-3315; Fax (865) 576-0956 or email: [email protected]gov or check the Web site at www.oakridge.doe.gov/em... following Web site: http://www.oakridge.doe.gov/em/ssab/minutes.htm . Issued at Washington, DC, on September...

78 FR 17648 - Environmental Management Site-Specific Advisory Board, Oak Ridge Reservation

Federal Register 2010, 2011, 2012, 2013, 2014

2013-03-22

...: Department of Energy Information Center, Office of Science and Technical Information, 1 Science.gov Way, Oak...-3315; Fax (865) 576-0956 or email: [email protected]gov or check the Web site at www.oakridge.doe.gov/em... following Web site: http://www.oakridge.doe.gov/em/ssab/minutes.htm . Issued at Washington, DC, on March 15...

78 FR 3890 - Environmental Management Site-Specific Advisory Board, Oak Ridge Reservation

Federal Register 2010, 2011, 2012, 2013, 2014

2013-01-17

...: Department of Energy Information Center, Office of Science and Technical Information, 1 Science.gov Way, Oak...-3315; Fax (865) 576-0956 or email: [email protected]gov or check the Web site at www.oakridge.doe.gov/em... following Web site: http://www.oakridge.doe.gov/em/ssab/minutes.htm . Issued at Washington, DC on January 11...

78 FR 12746 - Environmental Management Site-Specific Advisory Board, Oak Ridge Reservation

Federal Register 2010, 2011, 2012, 2013, 2014

2013-02-25

...: Department of Energy Information Center, Office of Science and Technical Information, 1 Science.gov Way, Oak...-3315; Fax (865) 576-0956 or email: [email protected]gov or check the Web site at www.oakridge.doe.gov/em... above. Minutes will also be available at the following Web site: http://www.oakridge.doe.gov/em/ssab...

77 FR 74836 - Environmental Management Site-Specific Advisory Board, Oak Ridge Reservation

Federal Register 2010, 2011, 2012, 2013, 2014

2012-12-18

...: Department of Energy Information Center, Office of Science and Technical Information, 1 Science.gov Way, Oak...-3315; Fax (865) 576-0956 or email: [email protected]gov or check the Web site at www.oakridge.doe.gov/em... above. Minutes will also be available at the following Web site: http://www.oakridge.doe.gov/em/ssab...

78 FR 30911 - Environmental Management Site-Specific Advisory Board, Oak Ridge Reservation

Federal Register 2010, 2011, 2012, 2013, 2014

2013-05-23

...: Department of Energy Information Center, Office of Science and Technical Information, 1 Science.gov Way, Oak...-3315; Fax (865) 576-0956 or email: [email protected]gov or check the Web site at www.oakridge.doe.gov/em... following Web site: http://www.oakridge.doe.gov/em/ssab/board-minutes.html . Issued at Washington, DC, on...

Society for College Science Teachers: Putting Inquiry Teaching to the Test--Enhancing Learning in College Botany

ERIC Educational Resources Information Center

Lord, Thomas; Shelly, Chad; Zimmerman, Rachel

2007-01-01

Can you imagine a class where students cover the content with each other rather than simply listening to the professor's lecture? Can you envision students developing their own laboratory investigations and quizzing each other weekly to check for understanding? Well, that's pretty much how the major science organizations across the nation are…

Alpha-1 Antitrypsin Deficiency

MedlinePlus

... Activities Obesity, Nutrition, and Physical Activity Population and Epidemiology Studies Women’s Health All Science A-Z Grants ... you may inhale. Check your living and working spaces for things that may irritate your lungs. Examples ...

3. "TEST STAND NO. 13, EXCAVATION PLAN & SECTIONS." Specifications ...

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

3. "TEST STAND NO. 1-3, EXCAVATION PLAN & SECTIONS." Specifications No. ENG 04-353-50-10; Drawing No. 60-0906; no sheet number within title block; D.O. SERIES 1109/10. Stamped: AS BUILT. No revisions or revision dates. Last work date on this drawing "Checked by EAG, 1/31/49." Though this drawing is specific to Test Stand 1-3, it also illustrates the general methods used for excavation design and retaining wall construction at Test Stand 1-5. - Edwards Air Force Base, Air Force Rocket Propulsion Laboratory, Test Stand 1-3, Test Area 1-115, northwest end of Saturn Boulevard, Boron, Kern County, CA

Hydrogen recombiner catalyst test supporting data

DOE Office of Scientific and Technical Information (OSTI.GOV)

Britton, M.D.

1995-01-19

This is a data package supporting the Hydrogen Recombiner Catalyst Performance and Carbon Monoxide Sorption Capacity Test Report, WHC-SD-WM-TRP-211, Rev 0. This report contains 10 appendices which consist of the following: Mass spectrometer analysis reports: HRC samples 93-001 through 93-157; Gas spectrometry analysis reports: HRC samples 93-141 through 93-658; Mass spectrometer procedure PNL-MA-299 ALO-284; Alternate analytical method for ammonia and water vapor; Sample log sheets; Job Safety analysis; Certificate of mixture analysis for feed gases; Flow controller calibration check; Westinghouse Standards Laboratory report on Bois flow calibrator; and Sorption capacity test data, tables, and graphs.

Application of machine learning and expert systems to Statistical Process Control (SPC) chart interpretation

NASA Technical Reports Server (NTRS)

Shewhart, Mark

1991-01-01

Statistical Process Control (SPC) charts are one of several tools used in quality control. Other tools include flow charts, histograms, cause and effect diagrams, check sheets, Pareto diagrams, graphs, and scatter diagrams. A control chart is simply a graph which indicates process variation over time. The purpose of drawing a control chart is to detect any changes in the process signalled by abnormal points or patterns on the graph. The Artificial Intelligence Support Center (AISC) of the Acquisition Logistics Division has developed a hybrid machine learning expert system prototype which automates the process of constructing and interpreting control charts.

Energy requirement for the production of silicon solar arrays

NASA Technical Reports Server (NTRS)

Lindmayer, J.; Wihl, M.; Scheinine, A.; Rosenfield, T.; Wrigley, C. Y.; Morrison, A.; Anderson, J.; Clifford, A.; Lafky, W.

1977-01-01

The results of a study to investigate the feasibility of manufacturing photovoltaic solar array modules by the use of energy obtained from similar or identical photovoltaic sources are presented. The primary objective of this investigation was the characterization of the energy requirements of current and developing technologies which comprise the photovoltaic field. For cross-checking the energies of prevailing technologies data were also used and the wide-range assessment of alternative technologies included different refinement methods, various ways of producing light sheets, semicrystalline cells, etc. Energy data are utilized to model the behavior of a future solar breeder plant under various operational conditions.

KSC-08pd3049

NASA Image and Video Library

2008-10-07

CAPE CANAVERAL, Fla. – In the Space Station Processing Facility at NASA's Kennedy Space Center in Florida, workers check data sheets associated with stowing supply packages in the Multi-Purpose Logistics Module Leonardo for the STS-126 mission to the International Space Station. The 15-day flight will deliver equipment and supplies to the International Space Station in preparation for expansion from a three- to six-person resident crew aboard the complex. The mission also will include four spacewalks to service the station Solar Alpha Rotary Joints. Leonardo holds supplies and equipment, including equipment for the regenerative life support system, additional crew quarters and exercise equipment and spare hardware. Photo credit: NASA/Kim Shiflett

Side Effects of HIV Medicines: HIV and Rash

MedlinePlus

... swallowing, dizziness or lightheadedness, and kidney damage. Stevens-Johnson syndrome (SJS) (also called erythema multiforme major) is ... National Center for Advancing Translational Sciences (NCATS): Stevens-Johnson syndrome Print This Fact Sheet Entire Series Related ...

Superfund and Technology Liaison Program Fact Sheet

EPA Pesticide Factsheets

The Superfund and Technology Liaison (STL) Program was established to facilitate regional access to ORD laboratories, provide technical support, and assist with the integration of science and technology into decision-making for hazardous waste programs.

South entrance, plan, section, & detail. San Bernardino Valley Union ...

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

South entrance, plan, section, & detail. San Bernardino Valley Union Junior College, Science Building. Detailed drawings of tile work, wrought iron, and art stone, Howard E. Jones, Architect, San Bernardino, California. Sheet 6, job no. 311. Scale 1.2 inch to the foot. February 15, 1927. - San Bernardino Valley College, Life Science Building, 701 South Mount Vernon Avenue, San Bernardino, San Bernardino County, CA

Colored shaded-relief bathymetry, acoustic backscatter, and selected perspective views of the Inner Continental Borderland, southern California

USGS Publications Warehouse

Dartnell, Peter; Driscoll, Neal W.; Brothers, Daniel S.; Conrad, James E.; Kluesner, Jared; Kent, Graham; Andrews, Brian D.

2015-01-01

In late 2013, Scripps Institution of Oceanography collected multibeam bathymetry and acoustic-backscatter data of the Inner Continental Borderland Region, Southern California. The U.S. Geological Survey Pacific Coastal and Marine Science Center processed these data, and this report provides the data in a number of different formats in addition to a set of map sheets. The data catalog provides the new bathymetry and acoustic-backscatter data, collected mainly in the Gulf of Santa Catalina and San Diego Trough, as well as this new bathymetry data merged with other publically available bathymetry data from the region. Sheet 1 displays a colored shaded-relief bathymetry map of the Inner Continental Borderland generated from the merged bathymetry data. Sheet 2 displays the new acoustic-backscatter data along with other available backscatter data in the region. Sheet 3 displays selected perspective views of the bathymetry data highlighting submarine canyon and channel systems, knolls, and tectonic features.

Post‐Graphene 2D Chemistry: The Emerging Field of Molybdenum Disulfide and Black Phosphorus Functionalization

PubMed Central

Hauke, Frank

2018-01-01

Abstract The current state of the chemical functionalization of three types of single sheet 2D materials, namely, graphene, molybdenum disulfide (MoS2), and black phosphorus (BP) is summarized. Such 2D sheet polymers are currently an emerging field at the interface of synthetic chemistry, physics, and materials science. Both covalent and non‐covalent functionalization of sheet architectures allows a systematic modification of their properties, that is, an improvement of solubility and processability, the prevention of re‐aggregation, or band‐gap tuning. Next to successful functionalization concepts, fundamental challenges are also addressed. These include the insolubility and polydispersity of most 2D sheet polymers, the development of suitable characterization tools, the identification of effective binding strategies, the chemical activation of the usually rather unreactive basal planes for covalent addend binding, and the regioselectivity of plane addition reactions. Although a number of these questions remain elusive in this Review, the first promising concepts to overcome such hurdles are presented. PMID:29024321

Space Station needs, attributes and architectural options. Volume 2, book 1, part 4: Payload element mission data sheets

NASA Technical Reports Server (NTRS)

1984-01-01

Data sheets are presented for 11 internal payloads, 30 externally mounted payloads, and 46 free flyers. The importance of the space station to each payload element is rated on a scale of 1 to 10. The type of experiment noncommercial science and applications, commercial, technological, and operational is indicated and the payload and its objectives are described. Space is provided for noting requirements for power; data/communication; thermal environment; equipment physical characteristics; crew size; and service and maintenance.

APPLIED ORIGAMI. Origami of thick panels.

PubMed

Chen, Yan; Peng, Rui; You, Zhong

2015-07-24

Origami patterns, including the rigid origami patterns in which flat inflexible sheets are joined by creases, are primarily created for zero-thickness sheets. In order to apply them to fold structures such as roofs, solar panels, and space mirrors, for which thickness cannot be disregarded, various methods have been suggested. However, they generally involve adding materials to or offsetting panels away from the idealized sheet without altering the kinematic model used to simulate folding. We develop a comprehensive kinematic synthesis for rigid origami of thick panels that differs from the existing kinematic model but is capable of reproducing motions identical to that of zero-thickness origami. The approach, proven to be effective for typical origami, can be readily applied to fold real engineering structures. Copyright © 2015, American Association for the Advancement of Science.

Atomically thin two-dimensional organic-inorganic hybrid perovskites.

PubMed

Dou, Letian; Wong, Andrew B; Yu, Yi; Lai, Minliang; Kornienko, Nikolay; Eaton, Samuel W; Fu, Anthony; Bischak, Connor G; Ma, Jie; Ding, Tina; Ginsberg, Naomi S; Wang, Lin-Wang; Alivisatos, A Paul; Yang, Peidong

2015-09-25

Organic-inorganic hybrid perovskites, which have proved to be promising semiconductor materials for photovoltaic applications, have been made into atomically thin two-dimensional (2D) sheets. We report the solution-phase growth of single- and few-unit-cell-thick single-crystalline 2D hybrid perovskites of (C4H9NH3)2PbBr4 with well-defined square shape and large size. In contrast to other 2D materials, the hybrid perovskite sheets exhibit an unusual structural relaxation, and this structural change leads to a band gap shift as compared to the bulk crystal. The high-quality 2D crystals exhibit efficient photoluminescence, and color tuning could be achieved by changing sheet thickness as well as composition via the synthesis of related materials. Copyright © 2015, American Association for the Advancement of Science.

Camera Test on Curiosity During Flight to Mars

NASA Image and Video Library

2012-05-07

An in-flight camera check produced this out-of-focus image when NASA Mars Science Laboratory spacecraft turned on illumination sources that are part of the Curiosity rover Mars Hand Lens Imager MAHLI instrument.

A Report from the Higher Education Review Board (HERB): Assessment of Undergraduate Student Learning Outcomes in Food Science

ERIC Educational Resources Information Center

Hartel, R. W.; Iwaoka, W. T.

2016-01-01

For the past 15 years, Institute of Food Technologists (IFT) has mandated assessment of undergraduate student learning outcomes as the basis for approving food science (FS) programs. No longer is a check-off course system sufficient to be an IFT-approved program. The 4 steps to gaining IFT approval include developing learning outcomes for all…

Virtual test: A student-centered software to measure student's critical thinking on human disease

NASA Astrophysics Data System (ADS)

Rusyati, Lilit; Firman, Harry

2016-02-01

The study "Virtual Test: A Student-Centered Software to Measure Student's Critical Thinking on Human Disease" is descriptive research. The background is importance of computer-based test that use element and sub element of critical thinking. Aim of this study is development of multiple choices to measure critical thinking that made by student-centered software. Instruments to collect data are (1) construct validity sheet by expert judge (lecturer and medical doctor) and professional judge (science teacher); and (2) test legibility sheet by science teacher and junior high school student. Participants consisted of science teacher, lecturer, and medical doctor as validator; and the students as respondent. Result of this study are describe about characteristic of virtual test that use to measure student's critical thinking on human disease, analyze result of legibility test by students and science teachers, analyze result of expert judgment by science teachers and medical doctor, and analyze result of trial test of virtual test at junior high school. Generally, result analysis shown characteristic of multiple choices to measure critical thinking was made by eight elements and 26 sub elements that developed by Inch et al.; complete by relevant information; and have validity and reliability more than "enough". Furthermore, specific characteristic of multiple choices to measure critical thinking are information in form science comic, table, figure, article, and video; correct structure of language; add source of citation; and question can guide student to critical thinking logically.

JSC technician checks STS-44 DSO 316 bioreactor and rotating wall vessel hdwr

NASA Technical Reports Server (NTRS)

1991-01-01

JSC technician Tacey Prewitt checks the progress on a bioreactor experiment in JSC's Life Sciences Laboratory Bldg 37 biotechnology laboratory. Similar hardware is scheduled for testing aboard Atlantis, Orbiter Vehicle (OV) 104, during STS-44. Detailed Supplementary Objective (DSO) 316 Bioreactor/Flow and Particle Trajectory in Microgravity will checkout the rotating wall vessel hardware and hopefully will confirm researchers' theories and calculations about how flow fields work in space. Plastic beads of various sizes rather than cell cultures are being flown in the vessel for the STS-44 test.

Materials science: How to suck like an octopus

NASA Astrophysics Data System (ADS)

Wilker, Jonathan J.

2017-06-01

Rubber sheets that reversibly bind and release substrates have been made by copying a subtlety in the shape of octopus suckers. The findings reveal how macro-scale biological structures can influence function. See Letter p.396

76 FR 9774 - Agency Information Collection Activities; Submission to OMB for Review and Approval; Comment...

Federal Register 2010, 2011, 2012, 2013, 2014

2011-02-22

... Samantha Fontenelle, Standards and Health Protection Division, Office of Science and Technology, (4305T... distribution of biennial fish advisory fact sheets. The responses to the survey are voluntary and the...

Community Public Health Fact Sheet

EPA Pesticide Factsheets

EPA’s Community Public Health (CPH) project in the Office of Research and Development (ORD) produces high quality science and tools to understand and assess environmental risks and ecosystem goods and services (EGS) to decision-makers at all levels.

Tribal-Focused Environmental Risk and Sustainability Tool (Tribal-FERST) Fact Sheet

EPA Pesticide Factsheets

The Tribal-Focused Environmental Risk and Sustainability Tool (Tribal- FERST) is a web-based geospatial decision support tool that will provide tribes with easy access to the best available human health and ecological science.

Smoke Sense Study Supported by Citizen Scientists Fact Sheet

EPA Pesticide Factsheets

EPA researchers are conducting a citizen science study called Smoke Sense to determine the extent to which exposure to wildland fire smoke affects health and productivity, and develop health risk communication strategies that protect public health.

Planetary science: Pluto's polygons explained

NASA Astrophysics Data System (ADS)

Dombard, Andrew J.; O'Hara, Sean

2016-06-01

The Sputnik Planum basin of Pluto contains a sheet of nitrogen ice, the surface of which is divided into irregular polygons tens of kilometres across. Two studies reveal that vigorous convection causes these polygons. See Letters p.79 & 82

Mental Health Providers: Credentials, Services Offered and What to Expect

MedlinePlus

... Prescribe medication Psychologist A psychologist is trained in psychology — a science that deals with thoughts, emotions and ... Psychological Association or the Association for Behavioral and Cognitive Therapies. Check phone book listings or search the ...

Hurricane Sandy science plan: coastal topographic and bathymetric data to support hurricane impact assessment and response

USGS Publications Warehouse

Stronko, Jakob M.

2013-01-01

Hurricane Sandy devastated some of the most heavily populated eastern coastal areas of the Nation. With a storm surge peaking at more than 19 feet, the powerful landscape-altering destruction of Hurricane Sandy is a stark reminder of why the Nation must become more resilient to coastal hazards. In response to this natural disaster, the U.S. Geological Survey (USGS) received a total of $41.2 million in supplemental appropriations from the Department of the Interior (DOI) to support response, recovery, and rebuilding efforts. These funds support a science plan that will provide critical scientific information necessary to inform management decisions for recovery of coastal communities, and aid in preparation for future natural hazards. This science plan is designed to coordinate continuing USGS activities with stakeholders and other agencies to improve data collection and analysis that will guide recovery and restoration efforts. The science plan is split into five distinct themes: • Coastal topography and bathymetry • Impacts to coastal beaches and barriers • Impacts of storm surge, including disturbed estuarine and bay hydrology • Impacts on environmental quality and persisting contaminant exposures • Impacts to coastal ecosystems, habitats, and fish and wildlife This fact sheet focuses on coastal topography and bathymetry. This fact sheet focuses on coastal topography and bathymetry.

Skylab reuse study, reference data. Part 2: Appendixes

NASA Technical Reports Server (NTRS)

1978-01-01

Contents: (1) evaluations of the dysbarism risk associated with a Skylab revisit by shuttle; (2) mission model/payload data sheets; (3) life sciences utilization of on-board Skylab medical facilities; (4) airlock module description; and (5) orbital workshop description.

Next Generation Source Measuments: CRADA partner communication sheet

EPA Science Inventory

Partnerships to Advance Next Gen. Source MeasurementsA growing number of government, academic, and industry groups are recognizing the revolution in air pollution and greenhouse gas source measurement science enabled by the rapid advances in sensors, communications, data integrat...

ColDICE: A parallel Vlasov–Poisson solver using moving adaptive simplicial tessellation

DOE Office of Scientific and Technical Information (OSTI.GOV)

Sousbie, Thierry, E-mail: tsousbie@gmail.com; Department of Physics, The University of Tokyo, Tokyo 113-0033; Research Center for the Early Universe, School of Science, The University of Tokyo, Tokyo 113-0033

2016-09-15

Resolving numerically Vlasov–Poisson equations for initially cold systems can be reduced to following the evolution of a three-dimensional sheet evolving in six-dimensional phase-space. We describe a public parallel numerical algorithm consisting in representing the phase-space sheet with a conforming, self-adaptive simplicial tessellation of which the vertices follow the Lagrangian equations of motion. The algorithm is implemented both in six- and four-dimensional phase-space. Refinement of the tessellation mesh is performed using the bisection method and a local representation of the phase-space sheet at second order relying on additional tracers created when needed at runtime. In order to preserve in the bestmore » way the Hamiltonian nature of the system, refinement is anisotropic and constrained by measurements of local Poincaré invariants. Resolution of Poisson equation is performed using the fast Fourier method on a regular rectangular grid, similarly to particle in cells codes. To compute the density projected onto this grid, the intersection of the tessellation and the grid is calculated using the method of Franklin and Kankanhalli [65–67] generalised to linear order. As preliminary tests of the code, we study in four dimensional phase-space the evolution of an initially small patch in a chaotic potential and the cosmological collapse of a fluctuation composed of two sinusoidal waves. We also perform a “warm” dark matter simulation in six-dimensional phase-space that we use to check the parallel scaling of the code.« less

U.S. Geological Survey (USGS) Western Region: Alaska Coastal and Ocean Science

USGS Publications Warehouse

Holland-Bartels, Leslie

2009-01-01

The U.S. Geological Survey (USGS), a bureau of the Department of the Interior (DOI), is the Nation's largest water, earth, and biological science and mapping agency. The bureau's science strategy 'Facing Tomorrow's Challenges - U.S. Geological Survey Science in the Decade 2007-2017' describes the USGS vision for its science in six integrated areas of societal concern: Understanding Ecosystems and Predicting Ecosystem Change; Climate Variability and Change; Energy and Minerals; Hazards, Risk, and Resilience; Environment and Wildlife in Human Health; and Water Census of the United States. USGS has three Regions that encompass nine geographic Areas. This fact sheet describes examples of USGS science conducted in coastal, nearshore terrestrial, and ocean environments in the Alaska Area.

Highly stretchable electroluminescent skin for optical signaling and tactile sensing.

PubMed

Larson, C; Peele, B; Li, S; Robinson, S; Totaro, M; Beccai, L; Mazzolai, B; Shepherd, R

2016-03-04

Cephalopods such as octopuses have a combination of a stretchable skin and color-tuning organs to control both posture and color for visual communication and disguise. We present an electroluminescent material that is capable of large uniaxial stretching and surface area changes while actively emitting light. Layers of transparent hydrogel electrodes sandwich a ZnS phosphor-doped dielectric elastomer layer, creating thin rubber sheets that change illuminance and capacitance under deformation. Arrays of individually controllable pixels in thin rubber sheets were fabricated using replica molding and were subjected to stretching, folding, and rolling to demonstrate their use as stretchable displays. These sheets were then integrated into the skin of a soft robot, providing it with dynamic coloration and sensory feedback from external and internal stimuli. Copyright © 2016, American Association for the Advancement of Science.

Surface water hydrology and the Greenland Ice Sheet

NASA Astrophysics Data System (ADS)

Smith, L. C.; Yang, K.; Pitcher, L. H.; Overstreet, B. T.; Chu, V. W.; Rennermalm, A. K.; Cooper, M. G.; Gleason, C. J.; Ryan, J.; Hubbard, A.; Tedesco, M.; Behar, A.

2016-12-01

Mass loss from the Greenland Ice Sheet now exceeds 260 Gt/year, raising global sea level by >0.7 mm annually. Approximately two-thirds of this total mass loss is now driven by negative ice sheet surface mass balance (SMB), attributed mainly to production and runoff of meltwater from the ice sheet surface. This new dominance of runoff as a driver of GrIS total mass loss will likely persist owing to anticipated further increases in surface melting, reduced meltwater storage in firn, and the waning importance of dynamical mass losses (ice calving) as the ice sheets retreat from their marine-terminating margins. It also creates the need and opportunity for integrative research pairing traditional surface water hydrology approaches with glaciology. As one example, we present a way to measure supraglacial "runoff" (i.e. specific discharge) at the supraglacial catchment scale ( 101-102 km2), using in situ measurements of supraglacial river discharge and high-resolution satellite/drone mapping of upstream catchment area. This approach, which is standard in terrestrial hydrology but novel for ice sheet science, enables independent verification and improvement of modeled SMB runoff estimates used to project sea level rise. Furthermore, because current SMB models do not consider the role of fluvial watershed processes operating on the ice surface, inclusion of even a simple surface routing model materially improves simulations of runoff delivered to moulins, the critical pathways for meltwater entry into the ice sheet. Incorporating principles of surface water hydrology and fluvial geomorphology and into glaciological models will thus aid estimates of Greenland meltwater runoff to the global ocean as well as connections to subglacial hydrology and ice sheet dynamics.

CM-1 - MS Thomas and PS Linteris in Spacelab

NASA Image and Video Library

2012-09-18

STS083-302-005 (4-8 April 1997) --- Payload specialist Gregory T. Linteris enters data on the progress of a Microgravity Sciences Laboratory (MSL-1) experiment on a lap top computer aboard the Spacelab Science Module while astronaut Donald A. Thomas, mission specialist, checks an experiment in the background. Linteris and Thomas, along with four other NASA astronauts and a second payload specialist supporting the Microgravity Sciences Laboratory (MSL-1) mission were less than a fourth of the way through a scheduled 16-day flight when a power problem cut short their planned stay.

SIMPL/AVIRIS-NG Greenland 2015: Flight Report

NASA Technical Reports Server (NTRS)

Brunt, Kelly M.; Neumann, Thomas A.; Markus, Thorsten

2015-01-01

In August 2015, NASA conducted a two-­aircraft, coordinated campaign based out of Thule Air Base, Greenland, in support of Ice, Cloud, and land Elevation Satellite-2 (ICESat-2) algorithm development. The survey targeted the Greenland Ice Sheet and sea ice in the Arctic Ocean during the summer melt season. The survey was conducted with a photon-counting laser altimeter in one aircraft and an imaging spectrometer in the second aircraft. Ultimately, the mission, SIMPL/AVIRIS-NG Greenland 2015, conducted nine coordinated science flights, for a total of 37 flight hours over the ice sheet and sea ice.

Conductance fluctuations in high mobility monolayer graphene: Nonergodicity, lack of determinism and chaotic behavior

PubMed Central

da Cunha, C. R.; Mineharu, M.; Matsunaga, M.; Matsumoto, N.; Chuang, C.; Ochiai, Y.; Kim, G.-H.; Watanabe, K.; Taniguchi, T.; Ferry, D. K.; Aoki, N.

2016-01-01

We have fabricated a high mobility device, composed of a monolayer graphene flake sandwiched between two sheets of hexagonal boron nitride. Conductance fluctuations as functions of a back gate voltage and magnetic field were obtained to check for ergodicity. Non-linear dynamics concepts were used to study the nature of these fluctuations. The distribution of eigenvalues was estimated from the conductance fluctuations with Gaussian kernels and it indicates that the carrier motion is chaotic at low temperatures. We argue that a two-phase dynamical fluid model best describes the transport in this system and can be used to explain the violation of the so-called ergodic hypothesis found in graphene. PMID:27609184

Conductance fluctuations in high mobility monolayer graphene: Nonergodicity, lack of determinism and chaotic behavior.

PubMed

da Cunha, C R; Mineharu, M; Matsunaga, M; Matsumoto, N; Chuang, C; Ochiai, Y; Kim, G-H; Watanabe, K; Taniguchi, T; Ferry, D K; Aoki, N

2016-09-09

We have fabricated a high mobility device, composed of a monolayer graphene flake sandwiched between two sheets of hexagonal boron nitride. Conductance fluctuations as functions of a back gate voltage and magnetic field were obtained to check for ergodicity. Non-linear dynamics concepts were used to study the nature of these fluctuations. The distribution of eigenvalues was estimated from the conductance fluctuations with Gaussian kernels and it indicates that the carrier motion is chaotic at low temperatures. We argue that a two-phase dynamical fluid model best describes the transport in this system and can be used to explain the violation of the so-called ergodic hypothesis found in graphene.

Fact Sheet on EPA's Science, Technology, Engineering & Math (STEM) Outreach Program in Research Triangle Park

EPA Pesticide Factsheets

Employees from EPA’s Research Triangle Park (RTP) campus serve as guest speakers at local schools and in the community. Hands-on activities and interactive discussions supplement classroom instruction and promote environmental awareness

Arsenic in Ground Water of the United States

MedlinePlus

... a hard problem : Geotimes Newsmagazine of the Earth Sciences, v.46 no.11, p.34-36. (2001) DATA Arsenic in ground-water resources of the United States : U.S. Geological Survey Fact Sheet 063-00. (2000) A retrospective analysis on ...

Space science

NASA Technical Reports Server (NTRS)

1975-01-01

A fact sheet on the NASA space science program is presented. Some of the subjects considered include the following: (1) the Orbiting Astronomical Observatory, (2) the Orbiting Solar Observatory, (3) the Small Astronomy Satellite, (4) lunar programs, (5) planetary programs using the Mariner, Pioneer 10, and Viking space probes, and (6) the Scout, Thor-Delta, and Atlas-Centaur launch vehicles. For each program there is a description of the effort, the schedule, management, program officials, and funding aspects in outline form.

North elevation and second floor plan. San Bernardino Valley Union ...

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

North elevation and second floor plan. San Bernardino Valley Union Junior College, Science Building. Includes physics, geology, and zoology departments shelving. Howard E. Jones, Architect, San Bernardino, California. Sheet 4, job no. 311. Scales 1/8 inch to the foot (elevations) and 1/2 inch to the foot (shelving). February 15, 1927. - San Bernardino Valley College, Life Science Building, 701 South Mount Vernon Avenue, San Bernardino, San Bernardino County, CA

East and west elevations. San Berardino Valley Union Junior College, ...

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

East and west elevations. San Berardino Valley Union Junior College, Science Building. Also includes elevations and sections of chemistry department shelving. Howard E. Jones, Architect, San Bernardino, California. Sheet 4, Job no. 311. Scales 1/8 inch to the foot (elevations) and 1/2 inch t other foot (shelving). February 15, 1927. - San Bernardino Valley College, Life Science Building, 701 South Mount Vernon Avenue, San Bernardino, San Bernardino County, CA

Spatiotemporal Variability of Meltwater Refreezing in Southwest Greenland Ice Sheet Firn

NASA Astrophysics Data System (ADS)

Rennermalm, A. K.; Hock, R.; Tedesco, M.; Corti, G.; Covi, F.; Miège, C.; Kingslake, J.; Leidman, S. Z.; Munsell, S.

2017-12-01

A substantial fraction of the summer meltwater formed on the surface of the Greenland ice sheet is retained in firn, while the remaining portion runs to the ocean through surface and subsurface channels. Refreezing of meltwater in firn can create impenetrable ice lenses, hence being a crucial process in the redistribution of surface runoff. To quantify the impact of refreezing on runoff and current and future Greenland surface mass balance, a three year National Science Foundation funded project titled "Refreezing in the firn of the Greenland ice sheet: Spatiotemporal variability and implications for ice sheet mass balance" started this past year. Here we present an overview of the project and some initial results from the first field season in May 2017 conducted in proximity of the DYE-2 site in the percolation zone of the Southwest Greenland ice sheet at elevations between 1963 and 2355 m a.s.l.. During this fieldwork two automatic weather stations were deployed, outfitted with surface energy balance sensors and 16 m long thermistor strings, over 300 km of ground penetrating radar data were collected, and five 20-26 m deep firn cores were extracted and analyzed for density and stratigraphy. Winter snow accumulation was measured along the radar tracks. Preliminary work on the firn-core data reveals increasing frequency and thickness of ice lenses at lower ice-sheet elevations, in agreement with other recent work in the area. Data collected within this project will facilitate advances in our understanding of the spatiotemporal variability of firn refreezing and its role in the hydrology and surface mass balance of the Greenland Ice Sheet.

JSC technician checks STS-44 DSO 316 bioreactor and rotating wall vessel hdwr

NASA Image and Video Library

1991-06-27

S91-40049 (27 June 1991) --- JSC technician Tacey Prewitt checks the progress on a bioreactor experiment in JSC's Life Sciences Laboratory Bldg 37 biotechnology laboratory. Similar hardware is scheduled for testing aboard Atlantis, Orbiter Vehicle (OV) 104, during STS-44. Detailed Supplementary Objective (DSO) 316 Bioreactor/Flow and Particle Trajectory in Microgravity will checkout the rotating wall vessel hardware and hopefully will confirm researchers' theories and calculations about how flow fields work in space. Plastic beads of various sizes rather than cell cultures are being flown in the vessel for the STS-44 test.

Gut Check: The evolution of an educational board game.

PubMed

Coil, David A; Ettinger, Cassandra L; Eisen, Jonathan A

2017-04-01

The "gamification" of science has gained a lot of traction in recent years, and games that convey scientific concepts or themes are increasingly popular. While a number of existing games touch on microbiology, very few consider the beneficial (as opposed to the detrimental) aspects of microbes. We designed a board game called "Gut Check: The Microbiome Game" to fill this gap. The game is meant to be both educational as well as challenging and fun. Here we discuss the development of the game, some of the logistics of game development in this context, and offer suggestions for others thinking of similar projects.

Astronaut Donald McMonagle checks drainage hose on his life raft in training

NASA Image and Video Library

1994-06-28

S94-37521 (28 June 1994) --- Astronaut Donald R. McMonagle, mission commander, checks the drainage hose on his rapidly fashioned life raft during an emergency bailout training exercise in the Johnson Space Center's (JSC) Weightless Environment Training Facility (WET-F). Making his third flight in space covering 343 hours, McMonagle will be joined by four other NASA astronauts and a European mission specialist for a week and a half in space aboard the Space Shuttle Atlantis. The flight will support the Atmospheric Laboratory for Applications and Science (ATLAS-3) mission.

Astronaut Joseph Tanner checks gloves during during launch/entry training

NASA Image and Video Library

1994-06-23

S94-40082 (23 June 1994) --- Astronaut Joseph R. Tanner, mission specialist, checks his glove during a rehearsal for launch and entry phases of the scheduled November flight of STS-66. This rehearsal, held in the Crew Compartment Trainer (CCT) of the Johnson Space Center's (JSC) Shuttle Mockup and Integration Laboratory, was followed by a training session on emergency egress procedures. In November, Tanner will join four other NASA astronauts and a European mission specialist for a week and a half aboard the Space Shuttle Atlantis in Earth-orbit in support of the Atmospheric Laboratory for Applications and Science (ATLAS-3).

Tuning the p-type Schottky barrier in 2D metal/semiconductor interface:boron-sheet on MoSe2, and WSe2

NASA Astrophysics Data System (ADS)

Couto, W. R. M.; Miwa, R. H.; Fazzio, A.

2017-10-01

Van der Waals (vdW) metal/semiconductor heterostructures have been investigated through first-principles calculations. We have considered the recently synthesized borophene (Mannix et al 2015 Science 350 1513), and the planar boron sheets (S1 and S2) (Feng et al 2016 Nat. Chem. 8 563) as the 2D metal layer, and the transition metal dichalcogenides (TMDCs) MoSe2, and WSe2 as the semiconductor monolayer. We find that the energetic stability of those 2D metal/semiconductor heterojunctions is mostly ruled by the vdW interactions; however, chemical interactions also take place in borophene/TMDC. The electronic charge transfer at the metal/semiconductor interface has been mapped, where we find a a net charge transfer from the TMDCs to the boron sheets. Further electronic structure calculations reveal that the metal/semiconductor interfaces, composed by planar boron sheets S1 and S2, present a p-type Schottky barrier which can be tuned to a p-type ohmic contact by an external electric field.

Whoooo Knew?

ERIC Educational Resources Information Center

Schiller, Ellen; Melin, Jacque

2011-01-01

Classroom assessment practices have shifted from a focus on checking for students' understanding of memorized material to examining their conceptual understanding as they engage in activities that involve scientific reasoning, inquiry skills, performances, and products. Inquiry-based science has shifted instruction away from teacher-centered,…

Formal methods in computer system design

NASA Astrophysics Data System (ADS)

Hoare, C. A. R.

1989-12-01

This note expounds a philosophy of engineering design which is stimulated, guided and checked by mathematical calculations and proofs. Its application to software engineering promises the same benifits as those derived from the use of mathematics in all other branches of modern science.

Validation of science virtual test to assess 8th grade students' critical thinking on living things and environmental sustainability theme

NASA Astrophysics Data System (ADS)

Rusyati, Lilit; Firman, Harry

2017-05-01

This research was motivated by the importance of multiple-choice questions that indicate the elements and sub-elements of critical thinking and implementation of computer-based test. The method used in this research was descriptive research for profiling the validation of science virtual test to measure students' critical thinking in junior high school. The participant is junior high school students of 8th grade (14 years old) while science teacher and expert as the validators. The instrument that used as a tool to capture the necessary data are sheet of an expert judgment, sheet of legibility test, and science virtual test package in multiple choice form with four possible answers. There are four steps to validate science virtual test to measure students' critical thinking on the theme of "Living Things and Environmental Sustainability" in 7th grade Junior High School. These steps are analysis of core competence and basic competence based on curriculum 2013, expert judgment, legibility test and trial test (limited and large trial test). The test item criterion based on trial test are accepted, accepted but need revision, and rejected. The reliability of the test is α = 0.747 that categorized as `high'. It means the test instruments used is reliable and high consistency. The validity of Rxy = 0.63 means that the validity of the instrument was categorized as `high' according to interpretation value of Rxy (correlation).

The Effect of Solar Forcing on the Greenland Ice Sheet during the Holocene - A Model Study

NASA Astrophysics Data System (ADS)

Bügelmayer, Marianne; Roche, Didier; Renssen, Hans

2014-05-01

Abrupt climate changes did not only happen during glacials but also during interglacials such as the Holocene. Marine sediments provide evidence for the periodic occurrence of centennial-scale events with enhanced iceberg discharge during the past 11.000 years (Bond et al., 2001). These events were chronologically linked to reduced solar activity as reconstructed using cosmogenic isotopes (Bond et al., 2001), indicating that even an external forcing that is considered to be small, has a potential impact on climate due to several feedback mechanisms (Renssen et al., 2006). The interactions between climate and solar irradiance have been investigated using numerical models (e.g. Haigh, 1996; Renssen et al, 2006), but so far without dynamically computing the Greenland ice sheet and iceberg calving. Thus, the impact of solar variations on iceberg discharge and the underlying mechanisms have not been analysed so far. To analyse the effect of variations in solar activity on the Greenland ice sheet (GIS) and the iceberg calving, as well as possible feedback mechanisms that enhance the impact of the total solar irradiance, we use the earth system model of intermediate complexity (iLOVECLIM, Roche et al., 2013), coupled to the ice sheet/ice shelf model GRISLI (Ritz et al., 2001) and to a dynamic-thermodynamic iceberg module (Jongma et al., 2009, Bügelmayer et al., 2014) to perform transient experiments of the last 6000 years. The experiments are conducted applying reconstructed atmospheric greenhouse gas concentrations, volcanic aerosol loads, orbital parameters and variations in the total solar irradiance. We present the response of the coupled model to different solar irradiance scenarios to evaluate modeled GIS sensitivity to relatively modest variations in radiative forcing. Moreover, we investigate the dependence of the model results on the chosen model sensitivity. References: Bond, G., Kromer, B., Beer, J., Muscheler, R., Evans, M. N., Showers, W., … Bonani, G. (2001): Persistent solar influence on North Atlantic climate during the Holocene. Science (New York, N.Y.), 294(5549), 2130-6. doi:10.1126/science.1065680 Bügelmayer, M., Roche, D.M., Renssen, H. (2014): How do icebergs affect the Greenland ice sheet under pre-industrial conditions? - A model study with a fully coupled ice sheet-climate model. The Cryosphere Discussions 8, 187-228. Haigh, J. D. (1996): The Impact of Solar Variability on Climate. Science, 272, 981-984. Jongma, J.I., Driesschaert, E., Fichefet, T., Goosse, H., Renssen, H., (2009): The effect of dynamic-thermodynamic icebergs on the Southern Ocean climate in a three-dimensional model. Ocean Modelling 26, 104-113. Renssen, H., Goosse, H., Muscheler, R., & Branch, R. (2006): Coupled climate model simulation of Holocene cooling events: oceanic feedback amplifies solar forcing. Climate of the Past, 2, 79-90. Ritz, C., Rommelaere, V. and Dumas, C.(2001): Modeling the evolution of Antarctic ice sheet over the last 420,000 years: Implications for altitude changes in the Vostok region, Journal of Geophysical Research, 106, 31943-31964, doi:10.1029/2001JD900232. Roche, D.M., Dumas, C., Bügelmayer, M., Charbit, S., Ritz, C. (2013): Adding a dynamical cryosphere into iLOVECLIM (version 1.0) - Part 1: Coupling with the GRISLI ice-sheet model, Geoscientific Model Development Discussion, 6, 5215-5249.

Enabling Climate Science Investigations by Students Using Cryosphere Climate Data Records (CDRs)

NASA Astrophysics Data System (ADS)

Ledley, T. S.; Youngman, B.; Meier, W.; Bardar, E.

2010-12-01

The polar regions are particularly sensitive to changes in the climate system, and as such changes can be recognized there first. Scientists make use of this to help them develop and execute research programs that will deepen and expand our understanding of the climate system. However, the same cryosphere CDRs collected by scientists are a useful and reliable resource for helping students investigate and discover the manifestations and implications of global climate change. We have developed a number of avenues to facilitate the use of cryosphere CDRs in educational contexts. These include the Earth Exploration Toolbook (EET, http://serc.carleton.edu/eet), DataSheets (http://serc.carleton.edu/usingdata/browse_sheets.html), and Cryosphere-EarthLabs (http://serc.carleton.edu/dev/earthlabs/cryosphere). The EET is an online resource comprised of “chapters”, each of which focuses on a specific Earth science dataset and data analysis tool. Chapters provide step-by-step instructions for accessing the dataset and analysis tool, putting the data into the tool, and conducting an analysis around a specific scientific concept or issue. There are a number of EET chapters that utilize cryosphere CDRs. The EET chapter “Whither Arctic Sea Ice?” uses ~30 years of Arctic sea ice extent images and image processing software to study changes in sea ice extent. “Is Greenland Melting?” uses ice thickness data, ice melting extents and weather station data to examine the changes in the Greenland Ice Sheet. Other EET chapters that utilize cryosphere CDRs include “Using NASA NEO and ImageJ to Explore the Role of Snow Cover in Shaping Climate” and “Envisioning Climate Change Using a Global Climate Model.” In addition to creating these activities to facilitate the use of cryosphere CDRs we have also created DataSheets for these CDRs. DataSheets are educationally relevant human readable metadata about a dataset that provide both the scientific background information about the dataset as well as the topics and skills that can be taught using the dataset. DataSheets enable an educator to make effective use of a dataset outside the context of an educational activity. A DataSheet created for the sea ice index used in the “Whither Arctic Sea Ice? EET chapter is “Exploring Sea Ice Data From Satellites.” An EarthLabs module is a suite of 7-9 labs intended to be the laboratory component of a high-school capstone Earth and Space Science course. The Cryosphere-EarthLabs module focuses on sea ice to help students deepen their understanding of change over time in the climate system on multiple and embedded time scales. The module contains hands-on activities and investigations using online cryosphere CDRs to help students understand the how sea ice forms and varies, how the cryosphere changes, and the causes of those changes on time scales ranging from the seasonal to ice age time scales. In this presentation we will examine the EET and EarthLabs resources that help educators and students explore climate change using cryosphere CDRs; examine the DataSheets for these datasets; and describe how your cryosphere CDRs can be made available through these resources.

SU-F-T-61: Treatment Planning Observations for the CivaSheet Directional Brachytherapy Device Using VariSeed 9.0

DOE Office of Scientific and Technical Information (OSTI.GOV)

Rivard, MJ; Rothley, DJ

2016-06-15

Purpose: The VariSeed 9.0 brachytherapy TPS is recently available and has new features such as ability to rotate a brachytherapy source away from normal to the imaging plane. Consequently, a dosimetric analysis was performed for a directional brachytherapy source (CivaSheet) with tests of this functionality and experiences from clinical treatment planning were documented. These observations contribute to safe, practical, and accurate use of such new software features. Methods: Several tests were established to evaluate the new rotational feature, specific to the CivaSheet for the first patients treated using this new brachytherapy device. These included suitability of imaging slice-thickness and in-planemore » resolution, window/level adjustments for brachytherapy source visualization, commissioning the source physical length for performing rotations, and using different planar and 3D window views to identify source orientation. Additional CivaSheet-specific tests were performed to determine the dosimetric influence on target coverage: changing the source tilt angle, source positioning in the treatment plan based on the CivaSheet rectangular array of CivaDots, and influence of prescription depth on the necessary treatment margin for adequate target coverage. Results: Higher imaging-resolution produced better accuracy for source orientation and positioning, with sub-millimeter CT slice-thickness and in-plane resolution preferred. Source rotation was possible only in sagittal or coronal views. The process for validating source orientation required iteratively altering rotations then checking them in the 3D view, which was cumbersome given the absence of quantitative plan documentation to indicate orientation. Given the small Pd-103 source size, influence of source tilt within 30° was negligible for <1.0 cm. Influence of source position was important when the source was positioned in/out of the adjacent source plane, causing changes of 15%, 7%, and 3% at depths of 0.5, 0.7, and 1.0 cm. Conclusion: The new TPS rotational feature worked well, but several issues were identified to improve the treatment planning process. Research supported in part by CivaTech Oncology, Inc. for Dr. Rivard.« less

Design and performance of daily quality assurance system for carbon ion therapy at NIRS

NASA Astrophysics Data System (ADS)

Saotome, N.; Furukawa, T.; Hara, Y.; Mizushima, K.; Tansho, R.; Saraya, Y.; Shirai, T.; Noda, K.

2017-09-01

At National Institute of Radiological Sciences (NIRS), we have been commissioning a rotating-gantry system for carbon-ion radiotherapy. This rotating gantry can transport heavy ions at 430 MeV/u to an isocenter with irradiation angles of ±180° that can rotate around the patient so that the tumor can be irradiated from any direction. A three-dimensional pencil-beam scanning irradiation system equipped with the rotating gantry enables the optimal use of physical characteristics of carbon ions to provide accurate treatment. To ensure the treatment quality using such a complex system, the calibration of the primary dose monitor, output check, range check, dose rate check, machine safety check, and some mechanical tests should be performed efficiently. For this purpose, we have developed a measurement system dedicated for quality assurance (QA) of this gantry system: the Daily QA system. The system consists of an ionization chamber system and a scintillator system. The ionization chamber system is used for the calibration of the primary dose monitor, output check, and dose rate check, and the scintillator system is used for the range check, isocenter, and gantry angle. The performance of the Daily QA system was verified by a beam test. The stability of the output was within 0.5%, and the range was within 0.5 mm. The coincidence of the coordinates between the patient-positioning system and the irradiation system was verified using the Daily QA system. Our present findings verified that the new Daily QA system for a rotating gantry is capable of verifying the irradiation system with sufficient accuracy.

A Microbial Murder Mystery.

ERIC Educational Resources Information Center

Mitchell, Melissa A.; Mitchell, James K.

2002-01-01

Proposes a microbial mystery activity to test students' knowledge of human anatomy and their ability to identify microbes. Provides an opportunity for students to develop logical deductive reasoning. Includes national science education standards related to this activity, activity sheets with whole procedures, and Internet resources. (KHR)

U.S. DOE Office of Science Success Stories (2011)

Science.gov Websites

; Gibson, Kerry; ACC0400 2011-04-01; Thin Sheet of Diamond Has Worlds of Uses; Sagoff, Jared; ACC0399 Top -03-28; Firm Uses DOE's Fastest Supercomputer to Streamline Long-Haul Trucks; ACC0391 2011-03-28

Rainfall and sheet power model for interrill erosion in steep slope

NASA Astrophysics Data System (ADS)

Shin, Seung Sook; Deog Park, Sand; Nam, Myeong Jun

2015-04-01

The two-phase process of interrill erosion consist of the splash and detachment of individual particles from soil mass by impact of raindrops and the transport by erosive running water. Most experimental results showed that the effect of interaction between rainfall impact and surface runoff increases soil erosion in low or gentle slope. Especially, the combination of rain splash and sheet flow is the dominant runoff and erosion mechanism occurring on most steep hillslopes. In this study, a rainfall simulation was conducted to evaluate interrill erosion in steep slope with cover or non-cover. The kinetic energy of raindrops of rainfall simulator was measured by disdrometer used to measure the drop size distribution and velocity of falling raindrops and showed about 0.563 rate of that calculated from empirical equation between rainfall kinetic energy and rainfall intensity. Surface and subsurface runoff and sediment yield depended on rainfall intensity, gradient of slope, and existence of cover. Sediment from steep plots under rainfall simulator is greatly reduced by existence of the strip cover that the kinetic energy of raindrop approximates to zero. Soil erosion in steep slope with non-cover was nearly 4.93 times of that measured in plots with strip cover although runoff was only 1.82 times. The equation of a rainfall and sheet power was used to evaluate sediment yields in steep slope with cover or non-cover. The power model successfully explained physical processes for interrill erosion that combination of raindrop impact and sheet flow increases greatly soil erosion in steep slope. This research was supported by Basic Science Research Program through the National Research Foundation of Korea(NRF) funded by the Ministry of Education, Science and Technology(No. 2013R1A1A3011962).

Wearable, Flexible, and Multifunctional Healthcare Device with an ISFET Chemical Sensor for Simultaneous Sweat pH and Skin Temperature Monitoring.

PubMed

Nakata, Shogo; Arie, Takayuki; Akita, Seiji; Takei, Kuniharu

2017-03-24

Real-time daily healthcare monitoring may increase the chances of predicting and diagnosing diseases in their early stages which, currently, occurs most frequently during medical check-ups. Next-generation noninvasive healthcare devices, such as flexible multifunctional sensor sheets designed to be worn on skin, are considered to be highly suitable candidates for continuous real-time health monitoring. For healthcare applications, acquiring data on the chemical state of the body, alongside physical characteristics such as body temperature and activity, are extremely important for predicting and identifying potential health conditions. To record these data, in this study, we developed a wearable, flexible sweat chemical sensor sheet for pH measurement, consisting of an ion-sensitive field-effect transistor (ISFET) integrated with a flexible temperature sensor: we intend to use this device as the foundation of a fully integrated, wearable healthcare patch in the future. After characterizing the performance, mechanical flexibility, and stability of the sensor, real-time measurements of sweat pH and skin temperature are successfully conducted through skin contact. This flexible integrated device has the potential to be developed into a chemical sensor for sweat for applications in healthcare and sports.

NDA Batch 2002-13

DOE Office of Scientific and Technical Information (OSTI.GOV)

Hollister, R

QC sample results (daily background check drum and 100-gram SGS check drum) were within acceptance criteria established by WIPP's Quality Assurance Objectives for TRU Waste Characterization. Replicate runs were performed on drum LL85501243TRU. Replicate measurement results are identical at the 95% confidence level as established by WIPP criteria. HWM NCAR No. 02-1000168 issued on 17-Oct-2002 regarding a partially dislodged Cd sheet filter on the HPGe coaxial detector. This physical geometry occurred on 01-Oct-2002 and was not corrected until 10-Oct-2002, during which period is inclusive of the present batch run of drums. Per discussions among the Independent Technical Reviewer, Expert Reviewermore » and the Technical QA Supervisor, as well as in consultation with John Fleissner, Technical Point of Contact from Canberra, the analytical results are technically reliable. All QC standard runs during this period were in control. Data packet for SGS Batch 2002-13 generated using passive gamma-ray spectroscopy with the Pu Facility SGS unit is technically reasonable. All QC samples are in compliance with establiShed control limits. The batch data packet has been reviewed for correctness, completeness, consistency and compliance with WIPP's Quality Assurance Objectives and determined to be acceptable.« less

Global ice sheet/RSL simulations using the higher-order Ice Sheet System Model.

NASA Astrophysics Data System (ADS)

Larour, E. Y.; Ivins, E. R.; Adhikari, S.; Schlegel, N.; Seroussi, H. L.; Morlighem, M.

2017-12-01

Relative sea-level rise is driven by processes that are intimately linked to the evolution ofglacial areas and ice sheets in particular. So far, most Earth System models capable of projecting theevolution of RSL on decadal to centennial time scales have relied on offline interactions between RSL andice sheets. In particular, grounding line and calving front dynamics have not been modeled in a way that istightly coupled with Elasto-Static Adjustment (ESA) and/or Glacial-Isostatic Adjustment (GIA). Here, we presenta new simulation of the entire Earth System in which both Greenland and Antarctica ice sheets are tightly coupledto an RSL model that includes both ESA and GIA at resolutions and time scales compatible with processes suchas grounding line dynamics for Antarctica ice shelves and calving front dynamics for Greenland marine-terminatingglaciers. The simulations rely on the Ice Sheet System Model (ISSM) and show the impact of higher-orderice flow dynamics and coupling feedbacks between ice flow and RSL. We quantify the exact impact of ESA andGIA inclusion on grounding line evolution for large ice shelves such as the Ronne and Ross ice shelves, as well asthe Agasea Embayment ice streams, and demonstate how offline vs online RSL simulations diverge in the long run,and the consequences for predictions of sea-level rise.This work was performed at the California Institute of Technology's Jet Propulsion Laboratory undera contract with the National Aeronautics and Space Administration's Cryosphere Science Program.

75 FR 57298 - Notice of Permit Applications Received Under the Antarctic Conservation Act of 1978 (Pub. L. 95-541)

Federal Register 2010, 2011, 2012, 2013, 2014

2010-09-20

... Antarctic Conservation Act of 1978 (Pub. L. 95-541), as amended by the Antarctic Science, Tourism and... chick carcass counts, and assessment of check health.) Leopard seal research assesses the impact of...

An Analogy-Based Computer Tutor for Remediating Physics Misconceptions.

ERIC Educational Resources Information Center

Murray, Tom; And Others

1990-01-01

Describes an intelligent tutoring system designed to help students remedy misconceptions of physics concepts based on a teaching strategy called bridging analogies. Highlights include tutoring strategies; misconceptions in science education; the example situation network; confidence checking; formative evaluation with college students, including…

32 CFR 242.5 - Admission procedures.

Code of Federal Regulations, 2012 CFR

2012-07-01

... HEALTH SCIENCES § 242.5 Admission procedures. (a) Application—(1) Civilians. Civilians seeking admission..., physical examinations, and National Agency Checks, as required, consistent with § 242.4(a)(5)) to determine whether or not the selected candidates are acceptable for commissioning. (Physical examinations for...

32 CFR 242.5 - Admission procedures.

Code of Federal Regulations, 2011 CFR

2011-07-01

... HEALTH SCIENCES § 242.5 Admission procedures. (a) Application—(1) Civilians. Civilians seeking admission..., physical examinations, and National Agency Checks, as required, consistent with § 242.4(a)(5)) to determine whether or not the selected candidates are acceptable for commissioning. (Physical examinations for...

32 CFR 242.5 - Admission procedures.

Code of Federal Regulations, 2014 CFR

2014-07-01

... HEALTH SCIENCES § 242.5 Admission procedures. (a) Application—(1) Civilians. Civilians seeking admission..., physical examinations, and National Agency Checks, as required, consistent with § 242.4(a)(5)) to determine whether or not the selected candidates are acceptable for commissioning. (Physical examinations for...

32 CFR 242.5 - Admission procedures.

Code of Federal Regulations, 2013 CFR

2013-07-01

... HEALTH SCIENCES § 242.5 Admission procedures. (a) Application—(1) Civilians. Civilians seeking admission..., physical examinations, and National Agency Checks, as required, consistent with § 242.4(a)(5)) to determine whether or not the selected candidates are acceptable for commissioning. (Physical examinations for...

Proceedings of the International Laser Science Conference (4th) Held in Atlanta, Georgia on 2-7 October 1988 (Advances in Laser Science-4)

DTIC Science & Technology

1988-10-07

the farther a gain sheet is from the end of the cell the smaller the solid angle into which ASK photons are radiated in the near on -axis region. ASE...versus z the propagation distance the temporal reshaping of the pump energy in graph a and’ the Stokes energy in graph b. From graph a , one can follow...interest from

Video- Soldering Iron Inserted Through a Film of Water Onboard the International Space Station (ISS)

NASA Technical Reports Server (NTRS)

2003-01-01

Saturday Morning Science, the science of opportunity series of applied experiments and demonstrations, performed aboard the International Space Station (ISS) by Expedition 6 astronaut Dr. Don Pettit, revealed some remarkable findings. In this video, Dr. Pettit demonstrates the result of inserting a soldering iron into a thin film or sheet of water in space. Dr. Pettit makes comparative comments about the differences and similarities of boiling processes in space and on Earth.

Section AA through main entrance gates & west stairs. San ...

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

Section AA through main entrance gates & west stairs. San Bernardino Valley Union Junior College, Science Building. Also includes plans and sections of boys' and girls' toilets. Howard E. Jones, Architect, San Bernardino, California. Sheet 5, job no. 311. Scales 1/4 inch to the foot (section AA) and 1/2 inch to the foot (toilet rooms). February 15, 1927. - San Bernardino Valley College, Life Science Building, 701 South Mount Vernon Avenue, San Bernardino, San Bernardino County, CA

Selected applications of hydrologic science and research in Maryland, Delaware, and Washington, D.C., 2001-2003

USGS Publications Warehouse

Olsen, Lisa D.

2003-01-01

One of the roles of the U.S. Geological Survey (USGS) is to provide reliable water data and unbiased water science needed to describe and understand the Nation?s water resources. This fact sheet describes selected techniques that were used by the USGS to collect, transmit, evaluate, or interpret data, in support of investigations that describe the quantity and quality of water resources in Maryland (MD), Delaware (DE), and the District of Columbia (D.C.). These hydrologic investigations generally were performed in cooperation with universities, research centers, and other Federal, State, and local Government agencies. The applications of hydrologic science and research that were selected for this fact sheet were used or tested in the MD-DE-DC District from 2001 through 2003, and include established methods, new approaches, and preliminary research. The USGS usually relies on standard methods or protocols when conducting water-resources research. Occasionally, traditional methods must be modified to address difficult environmental questions or challenging sampling conditions. Technologies developed for other purposes can sometimes be successfully applied to the collection or dissemination of water-resources data. The USGS is continually exploring new ways to collect, transmit, evaluate, and interpret data. The following applications of hydrologic science and research illustrate a few of the recent advances made by scientists working for and with the USGS.

100th anniversary of the birth of E M Lifshitz (Scientific session of the Physical Sciences Division of the Russian Academy of Sciences, 26 March 2015)

NASA Astrophysics Data System (ADS)

2015-09-01

A scientific session of the Physical Sciences Division of the Russian Academy of Sciences dedicated to the 100th anniversary of the birth of Academician E M Lifshitz was held in the conference hall of the institute of Physical Problems, RAS, on 26 March 2015. The agenda of the session announced on the website www.gpad.ac.ru of the PSD RAS contains the reports: (1) Khalatnikov I M (Landau Institute for Theoretical Physics, RAS, Moscow) "Problem of singularity in cosmology"; (2) Kats E I (Landau Institute for Theoretical Physics, RAS, Moscow) "Van der Waals, Casimir, and Lifshitz forces in soft matter"; (3) Volovik G E (Landau Institute for Theoretical Physics, RAS, Moscow) "Superfluids in rotation: Onsager-Feynman vortices and Landau-Lifshitz vortex sheets." Papers written on the basis of oral presentations 1-3 are published below. • Stochastic cosmology, perturbation theories, and Lifshitz gravity, I M Khalatnikov, A Yu Kamenshchik Physics-Uspekhi, 2015, Volume 58, Number 9, Pages 878-891 • Van der Waals, Casimir, and Lifshitz forces in soft matter, E I Kats Physics-Uspekhi, 2015, Volume 58, Number 9, Pages 892-896 • Superfluids in rotation: Landau-Lifshitz vortex sheets vs Onsager-Feynman vortices, G E Volovik Physics-Uspekhi, 2015, Volume 58, Number 9, Pages 897-905

Unravelling source regions of ice rafted debris within three NE Atlantic marine sediment cores during the deglacial interval: a multi-proxy approach

NASA Astrophysics Data System (ADS)

Small, David; Hibbert, Fiona; Austin, Bill

2010-05-01

Ice-rafted debris (IRD) within marine sediments of the North Atlantic provide an important archive of glacial activity on adjacent landmasses and attest to the activity of multiple calving ice margins during the last glacial cycle. IRD records therefore provide a means to reconstruct ice sheet dynamics and their interaction with the climate system, providing evidence of both the source of the ice and the location of melting (e.g. Ruddiman, 1977; Bond and Lotti, 1995). The complex interaction of the circum-Atlantic ice sheets and limitations of individual techniques often hinders firm source designations (i.e. IRD may be derived from multiple sources which cannot be differentiated by, for example, visual characterisation). Initial work identified diagnostic grain types that could be attributed to source areas of palaeo ice-sheets (eg: Bond & Lotti 1995) however, for the BIS, "diagnostic" basalt may be derived from sources to the east and west of the cores (Hibbert et al 2009, Scourse et al 2009). We therefore, utilise a multi-proxy approach to investigate the deglacial dynamics of the last British Ice Sheet (BIS) using inter alia lithic characterisation, fluxes of IRD to the core sites, magnetic susceptibility and a magnetic un-mixing model. A novel application of major element geochemistry of garnets contained within ice-rafted debris of the three high resolution marine sediment cores is presented. Garnets can be used to infer provenance (e.g. Oliver 2001) as major element composition may be assigned to specific metamorphic terranes. The IRD present within these cores is believed to be predominantly sourced from the BIS (cf: Knutz et al 2001, Hibbert et al 2009). This assertion is tested through multiple analytical techniques used and replication of records across the Hebridean shelf into the deep ocean. References • Bond, G.C. & Lotti, R., 1995. Iceberg discharges into the North Atlantic on millennial timescales during the last glaciation. Science 267. pp. 1005-1010. • Hibbert, F.D., Austin, W.E.N., Leng, M.J. and Gatliff, R.W., 2009. British Ice Sheet Dynamics inferred from North Atlantice ice-rafted debris records spanning the last 175,000 years. Journal of Quaternary Science. ISSN 0267-8179. • Knutz, P.C., Austin, W.E.N. and Jones, E.J.W., 2001. Millenial-scale depositional cycles related to British Ice Sheet variability and North Atlantic paleocirculation since 45kyr B.P., Barra Fan, U.K. margin. Paleoceanography 16. pp.53-64. • Oliver, G.J.H., 2001. Reconstruction of the Grampian episode in Scotland: it's place in the Caledonian Orogeny. Tectonphysics 332. pp.23-49. • Ruddiman, W.F., 1977. Late Quaternary deposition of ice-rafted sand in the sub-polar North Atlantic (lat 40° to 65°). Geological Society of America Bulletin 88. pp.1813-1821. • Scourse, J.D., Haapaniemi, A.I., Colmenero-Hidalgo, E., Peck, V.L., Hall, I.R., Austin, W.E.N., Knutz, P.C. and Zahn, R., 2009. Growth, dynamics and deglaciation of the last British-Irish Ice Sheet: the deep-sea ice-rafted detritus record. Quaternary Science Reviews 28. pp.3066-3084.

Development of an expert planning system for OSSA

NASA Technical Reports Server (NTRS)

Groundwater, B.; Lembeck, M. F.; Sarsfield, L.; Diaz, Alphonso

1988-01-01

This paper presents concepts related to preliminary work for the development of an expert planning system for NASA's Office for Space Science and Applications (OSSA). The expert system will function as a planner's decision aid in preparing mission plans encompassing sets of proposed OSSA space science initiatives. These plans in turn will be checked against budgetary and technical constraints and tested for constraint violations. Appropriate advice will be generated by the system for making modifications to the plans to bring them in line with the constraints. The OSSA Planning Expert System (OPES) has been designed to function as an integral part of the OSSA mission planning process. It will be able to suggest a best plan, be able to accept and check a user-suggested strawman plan, and should provide a quick response to user request and actions. OPES will be written in the C programming language and have a transparent user interface running under Windows 386 on a Compaq 386/20 machine. The system's sorted knowledge and inference procedures will model the expertise of human planners familiar with the OSSA planning domain. Given mission priorities and budget guidelines, the system first sets the launch dates for each mission. It will check to make sure that planetary launch windows and precursor mission relationships are not violated. Additional levels of constraints will then be considered, checking such things as the availability of a suitable launch vehicle, total mission launch mass required vs. the identified launch mass capability, and the total power required by the payload at its destination vs. the actual power available. System output will be in the form of Gantt charts, spreadsheet hardcopy, and other presentation quality materials detailing the resulting OSSA mission plan.

Reliability and utility of citizen science reef monitoring data collected by Reef Check Australia, 2002-2015.

PubMed

Done, Terence; Roelfsema, Chris; Harvey, Andrew; Schuller, Laura; Hill, Jocelyn; Schläppy, Marie-Lise; Lea, Alexandra; Bauer-Civiello, Anne; Loder, Jennifer

2017-04-15

Reef Check Australia (RCA) has collected data on benthic composition and cover at >70 sites along >1000km of Australia's Queensland coast from 2002 to 2015. This paper quantifies the accuracy, precision and power of RCA benthic composition data, to guide its application and interpretation. A simulation study established that the inherent accuracy of the Reef Check point sampling protocol is high (<±7% error absolute), in the range of estimates of benthic cover from 1% to 50%. A field study at three reef sites indicated that, despite minor observer- and deployment-related biases, the protocol does reliably document moderate ecological changes in coral communities. The error analyses were then used to guide the interpretation of inter-annual variability and long term trends at three study sites in RCA's major 2002-2015 data series for the Queensland coast. Copyright © 2017 Elsevier Ltd. All rights reserved.

ScienceCast 145: No Turning Back: West Antarctic Glaciers in Irreversible Decline

NASA Image and Video Library

2014-05-12

A new study led by NASA researchers shows that half-a-dozen key glaciers in the West Antarctic Ice Sheet are in irreversible decline. The melting of these sprawling icy giants will affect global sea levels in the centuries ahead.

Fermilab | Science

Science.gov Websites

Book Newsroom Newsroom News and features Press releases Photo gallery Fact sheets and brochures Media Tevatron experiments Tevatron operation Shutdown process For the media Video of shutdown event Guest book Quick Links Home Contact Phone Book Fermilab at Work For Industry Jobs Interact Facebook Twitter

Climate Science in Social Media: What's Worked, and What Hasn't

NASA Astrophysics Data System (ADS)

Sinclair, P.

2015-12-01

A common conception of social media is that the definition of success is a huge number of viewers and followers. While these outcomes not undesirable, they are not the only signs of success. More important than the size of the audience, is how well that audience follows and in turn, propagates the desired message. Dark Snow project has been successful in driving a global conversation about the Greenland ice sheet, not by creating huge numbers of viewers and followers, but due to a significant, and highly motivated, following among media gatekeepers, academic messengers, and social media activists. It's very important that, from the start, the Dark Snow story - that changes in ice sheet albedo may be driving increased melt, was effectively encoded, or "branded", in the project's name - "Dark Snow" - a vivid and easily illustrated visual image. A simple concept that is easy to describe and understand, but profound in implication, has allowed for wide discussion among professionals in science and media, as well as the general public.

ExoMars 2016 Trace Gas Orbiter and Mars Express Coordinated Science Operations Planning

NASA Astrophysics Data System (ADS)

Cardesin Moinelo, Alejandro; Geiger, Bernhard; Costa, Marc; Breitfellner, Michel; Castillo, Manuel; Marin Yaseli de la Parra, Julia; Martin, Patrick; Merritt, Donald R.; Grotheer, Emmanuel; Aberasturi Vega, Miriam; Ashman, Mike; Frew, David; Garcia Beteta, Juan Jose; Metcalfe, Leo; Muñoz, Claudio; Muñoz, Michela; Titov, Dimitri; Svedhem, Hakan

2018-05-01

In this contribution we focus on the science opportunity analysis between the Mars Express and the ExoMars 2016 Trace Gas Orbiter missions and the observations that can be combined to improve the scientific outcome of both missions. In particular we will describe the long term analysis of geometrical conditions that allow for coordinated science observations for solar occultation and nadir pointing. We will provide details on the calculations and results for simultaneous and quasi-simultaneous opportunities, taking into account the observation requirements of the instruments and the operational requirements for feasibility checks.

U.S. Geological Survey (USGS) Western Region: Coastal and Ocean Science

USGS Publications Warehouse

Kinsinger, Anne E.

2009-01-01

USGS Western Region Coastal and Ocean Science is interdisciplinary, collaborative, and integrates expertise from all USGS Disciplines, and ten of its major Science Centers, in Alaska, Hawai'i, California, Washington, and Oregon. The scientific talent, laboratories, and research vessels in the Western Region and across the Nation, strategically position the USGS to address broad geographic and oceanographic research topics. USGS information products inform resource managers and policy makers who must balance conservation mandates with increasing demands for resources that sustain the Nation's economy. This fact sheet describes but a few examples of the breadth of USGS science conducted in coastal, nearshore, and ocean environments along our Nation's West Coast and Pacific Islands.

Stop the Spam! Conference Ethics and Decoding the Subtext in Post-Truth Science. What Would Denis Diderot Say?

PubMed

Özdemir, Vural; Dandara, Collet; Hekim, Nezih; Birch, Kean; Springer, Simon; Kunej, Tanja; Endrenyi, Laszlo

2017-11-01

Science and its practice always had a subtext, subject to influence by scientists', funders', and other innovation actors' values and assumptions. The recent emergence of post-truth, authoritarian and populist penchants, in both developed and developing countries, has further blurred the already fluid boundaries between material scientific facts and their social construction/shaping by scientific subtext, human values, powers, and hegemony. While there are certain checks, balances, and oversight mechanisms for publication ethics, other pillars of science communication, most notably, scientific conferences and their governance, are ill prepared for post-truth science. Worrisomely, the proliferation of spam conferences is a major cause for concern for integrative biology and postgenomic science. The current gaps in conference ethics are important beyond science communication because conferences help build legitimacy of emerging technologies and frontiers of science and, thus, bestows upon the organizers, funders, enlisted scientific advisors, speakers, among others, power, which in turn needs to be checked. Denis Diderot (1713-1784), a prominent intellectual during the Enlightenment period, has aptly observed that the very act of organizing brings about power, influence, and control. If the subtext of conference practices is left unchecked, it can pave the way for hegemony, and yet more volatile and violent authoritarian governance systems in science and society. This begs for innovative solutions to increase accountability, resilience, and capacity of technology experts and scientists to discern and decode the subtext in science and its communication in the current post-truth world. We propose that the existing undergraduate and graduate programs in life and physical sciences and medicine could be redesigned to include a rotation for exposure to and training in political science. Such innovative PhD+ programs straddling technical and political science scholarship would best equip future students and citizens to grasp and respond to subtext and embedded opaque value and power systems in scientific practices in an increasingly post-truth world. Political science scholarship unpacks the inner workings, subtext, and power dynamics in science and society. Thus, knowledge of political science competency is akin to molecular biology in life sciences. Both make the invisible (e.g., cell biology versus subtext of knowledge) visible. The ability to read subtext in science and claims of post-truth knowledge is a new and essential form of societal literacy in 21 st century science and integrative biology.

Multilevel modeling and panel data analysis in educational research (Case study: National examination data senior high school in West Java)

NASA Astrophysics Data System (ADS)

Zulvia, Pepi; Kurnia, Anang; Soleh, Agus M.

2017-03-01

Individual and environment are a hierarchical structure consist of units grouped at different levels. Hierarchical data structures are analyzed based on several levels, with the lowest level nested in the highest level. This modeling is commonly call multilevel modeling. Multilevel modeling is widely used in education research, for example, the average score of National Examination (UN). While in Indonesia UN for high school student is divided into natural science and social science. The purpose of this research is to develop multilevel and panel data modeling using linear mixed model on educational data. The first step is data exploration and identification relationships between independent and dependent variable by checking correlation coefficient and variance inflation factor (VIF). Furthermore, we use a simple model approach with highest level of the hierarchy (level-2) is regency/city while school is the lowest of hierarchy (level-1). The best model was determined by comparing goodness-of-fit and checking assumption from residual plots and predictions for each model. Our finding that for natural science and social science, the regression with random effects of regency/city and fixed effects of the time i.e multilevel model has better performance than the linear mixed model in explaining the variability of the dependent variable, which is the average scores of UN.

The effects of Roundhouse diagram construction and use on meaningful science learning in the middle school classroom

NASA Astrophysics Data System (ADS)

Ward, Robin Eichel

This research explored the effects of Roundhouse diagram construction and use on meaningful learning of science concepts in a 6th-grade science classroom. This investigation examined the transformation of students' science concepts as they became more proficient in constructing Roundhouse diagrams, what problems students encountered while constructing Roundhouse diagrams, and how choices of iconic images affected their progress in meaningfully learning science concepts as they constructed a series of Roundhouse diagrams. The process of constructing a Roundhouse diagram involved recognizing the learner's relevant existing concepts, evaluating the central concepts for a science lesson and breaking them down into their component parts, reconstructing the learner's conceptual framework by reducing the amount of detail efficiently, reviewing the reconstruction process, and linking each key concept to an iconic image. The researcher collected and analyzed qualitative and quantitative data to determine the effectiveness of the Roundhouse diagram. Data included field notes, observations, students' responses to Roundhouse diagram worksheets, students' perceptions from evaluation sheets, students' mastery of technique sheets, tapes and transcripts of students' interviews, student-constructed Roundhouse diagrams, and documentation of science grades both pre- and post-Roundhouse diagramming. This multiple case study focused on six students although the whole class was used for statistical purposes. Stratified purposeful sampling was used to facilitate comparisons as well as week-by-week comparisons of students' science grades and Roundhouse diagram scores to gain additional insight into the effectiveness of the Roundhouse diagramming method. Through participation in constructing a series of Roundhouse diagrams, middle school students gained a greater understanding of science concepts. Roundhouse diagram scores improved over time during the 10-week Roundhouse diagramming session. Students' science scores improved as they became more proficient in constructing the Roundhouse diagrams. The major problems associated with constructing Roundhouse diagrams were extracting the main ideas from the textbook, understanding science concepts in terms of whole/part relationships, paraphrasing sentences effectively, and sequencing events in an accurate order. A positive relationship existed for the case study group based on students' choices and drawings of iconic images and the meaningful learning of science concepts.

Towards Greenland Glaciation: Cumulative or Abrupt Transition?

NASA Astrophysics Data System (ADS)

Tan, N.; Ramstein, G.; Contoux, C.; Ladant, J. B.; Dumas, C.; Donnadieu, Y.

2014-12-01

The insolation evolution [Laskar 2004] from 4 to 2.5 Ma depicts a series of three summer solstice insolation minima between 2.7 and 2.6 Ma, but there are other more important summer solstice minima notably around 3.82 and 3.05 Ma. On such a time span of more than 1 Ma, data shows that there are variations in the evolution of atmospheric CO2 concentration with a local maximum around 3 Ma [Seki et al.2010; Bartoli et al. 2011], before a decrease between 3 and 2.6 Ma. The latter, suggesting an abrupt ice sheet inception around 2.7 Ma, has been shown to be a major culprit for the full Greenland Glaciation [Lunt et al. 2008]. However, a recent study [Contoux et al. 2014, in review] suggests that a lowering of CO2 is not sufficient to initiate a glaciation on Greenland and must be combined to low summer insolation, with surviving ice during insolation maximum, suggesting a cumulative process in the first place, which could further lead to full glaciation at 2.7 Ma. Through a new tri-dimensional interpolation method implemented within the asynchronous coupling between an atmosphere ocean general circulation model (IPSL-CM5A) and an ice sheet model (GRISLI), we investigate the transient evolution of Greenland ice sheet during the Pliocene to diagnose whether the ice sheet inception is an abrupt event or rather a cumulative process, involving waxing and waning of the ice sheet during several orbital cycles. ReferencesBartoli, G., Hönisch, B., & Zeebe, R. E. (2011). Atmospheric CO2 decline during the Pliocene intensification of Northern Hemisphere glaciations. Paleoceanography, 26(4). Contoux C, Dumas C, Ramstein G, Jost A, Dolan A. M. (2014) Modelling Greenland Ice sheet inception and sustainability during the late Pliocene. (in review for Earth and Planetary Science Letters.).Laskar, J., Robutel, P., Joutel, F., Gastineau, M., Correia, A. C. M., & Levrard, B. (2004). A long-term numerical solution for the insolation quantities of the Earth. Astronomy & Astrophysics, 428(1), 261-285. Lunt, D. J., Foster, G. L., Haywood, A. M., & Stone, E. J. (2008). Late Pliocene Greenland glaciation controlled by a decline in atmospheric CO2 levels. Nature, 454(7208), 1102-1105. Seki, O., Foster, G. L., Schmidt, D. N., Mackensen et al. (2010). Alkenone and boron-based Pliocene pCO 2 records. Earth and Planetary Science Letters, 292(1), 201-211.

Hand-Drawn 'Weekly Information Sheets' Focus Teaching, Engage Students, and Improve Communication

NASA Astrophysics Data System (ADS)

Pound, K. S.

2016-12-01

Hand-drawn and lettered `Weekly Information Sheets' (WIS) were created on a weekly basis for an upper-level Sedimentology & Stratigraphy class. Use of these sheets resulted in improved work quality, attention to detail, communication skills, and overall engagement. The sheets were modeled on the work of Lynda Barry (https://www.drawnandquarterly.com/syllabus), and included a series of repeated elements: goofy/absurd newspaper clippings, marginally pertinent cartoon(s), a summary of the weeks activities / goals and lectures, as well as cartoon cat, mouse and penguin drawings with innane comments, quotes and general class reminders. The pedagogical aims for these weekly sheets were multifold. First, they were designed so that students could see the time and care I put in to the sheet - my hope was that this would show the time and care I expected them to put in to their work. Second, I wanted to create something students would take the time to read - despite this being a 400-level class, students are rarely diligent about reading a typewritten handout. Third, I wanted to have a vehicle for engaging them in the larger world, including ethical or moral dilemmas. Fourth, I wanted the students to reflectively consider the nature of communication in science. Finally, I wanted a mechanism to focus my thoughts on the teaching and learning for the upcoming week that went beyond simply reviewing my notes and activities. Student response to the WIS was positive; they read them, used them for organizing their class notes and exam review. Students arrived early for class on Mondays for the WIS - although I needed to give them time to read the sheet. Comparison with previous course offerings shows improvements in student communication skills (written reports, poster presentation) and overall achievement.

NASA: First Map Of Thawed Areas Under Greenland Ice Sheet

NASA Image and Video Library

2017-12-08

NASA researchers have helped produce the first map showing what parts of the bottom of the massive Greenland Ice Sheet are thawed – key information in better predicting how the ice sheet will react to a warming climate. Greenland’s thick ice sheet insulates the bedrock below from the cold temperatures at the surface, so the bottom of the ice is often tens of degrees warmer than at the top, because the ice bottom is slowly warmed by heat coming from the Earth’s depths. Knowing whether Greenland’s ice lies on wet, slippery ground or is anchored to dry, frozen bedrock is essential for predicting how this ice will flow in the future, But scientists have very few direct observations of the thermal conditions beneath the ice sheet, obtained through fewer than two dozen boreholes that have reached the bottom. Now, a new study synthesizes several methods to infer the Greenland Ice Sheet’s basal thermal state –whether the bottom of the ice is melted or not– leading to the first map that identifies frozen and thawed areas across the whole ice sheet. Map caption: This first-of-a-kind map, showing which parts of the bottom of the Greenland Ice Sheet are likely thawed (red), frozen (blue) or still uncertain (gray), will help scientists better predict how the ice will flow in a warming climate. Credit: NASA Earth Observatory/Jesse Allen Read more: go.nasa.gov/2avKgl2 NASA image use policy. NASA Goddard Space Flight Center enables NASA’s mission through four scientific endeavors: Earth Science, Heliophysics, Solar System Exploration, and Astrophysics. Goddard plays a leading role in NASA’s accomplishments by contributing compelling scientific knowledge to advance the Agency’s mission. Follow us on Twitter Like us on Facebook Find us on Instagram

Magnetospheric Substorm Evolution in the Magnetotail: Challenge to Global MHD Modeling.

NASA Astrophysics Data System (ADS)

Kuznetsova, M. M.; Hesse, M.; Dorelli, J.; Rastaetter, L.

2003-12-01

Testing the ability of global MHD models to describe magnetotail evolution during substroms is one of the elements of science based validation efforts at CCMC. We perform simulations of magnetotail dynamics using global MHD models residing at CCMC. We select solar wind conditions which drive the accumulation of magnetic field in the tail lobes and subsequent magnetic reconnection and energy release. We will analyze the effects of spatial resolution in the plasma sheet on modeled expansion phase evolution, maximum energy stored in the tail, and details of magnetotail reconnection. We will pay special attention to current sheet thinning and multiple plasmoid formation.

DFACS - DATABASE, FORMS AND APPLICATIONS FOR CABLING AND SYSTEMS, VERSION 3.30

NASA Technical Reports Server (NTRS)

Billitti, J. W.

1994-01-01

DFACS is an interactive multi-user computer-aided engineering tool for system level electrical integration and cabling engineering. The purpose of the program is to provide the engineering community with a centralized database for entering and accessing system functional definitions, subsystem and instrument-end circuit pinout details, and harnessing data. The primary objective is to provide an instantaneous single point of information interchange, thus avoiding error-prone, time-consuming, and costly multiple-path data shuttling. The DFACS program, which is centered around a single database, has built-in menus that provide easy data input and access for all involved system, subsystem, and cabling personnel. The DFACS program allows parallel design of circuit data sheets and harness drawings. It also recombines raw information to automatically generate various project documents and drawings including the Circuit Data Sheet Index, the Electrical Interface Circuits List, Assembly and Equipment Lists, Electrical Ground Tree, Connector List, Cable Tree, Cabling Electrical Interface and Harness Drawings, Circuit Data Sheets, and ECR List of Affected Interfaces/Assemblies. Real time automatic production of harness drawings and circuit data sheets from the same data reservoir ensures instant system and cabling engineering design harmony. DFACS also contains automatic wire routing procedures and extensive error checking routines designed to minimize the possibility of engineering error. DFACS is designed to run on DEC VAX series computers under VMS using Version 6.3/01 of INGRES QUEL/OSL, a relational database system which is available through Relational Technology, Inc. The program is available in VAX BACKUP format on a 1600 BPI 9-track magnetic tape (standard media) or a TK50 tape cartridge. DFACS was developed in 1987 and last updated in 1990. DFACS is a copyrighted work with all copyright vested in NASA. DEC, VAX and VMS are trademarks of Digital Equipment Corporation. INGRES QUEL/OSL is a trademark of Relational Technology, Inc.

Homework and Science Learning in Secondary Schools.

ERIC Educational Resources Information Center

Tamir, Pinchas

1985-01-01

Offers a conceptual framework for studying and analyzing potential benefits/disadvantages of homework. Also describes studies (measurement of conditions, practices, and attitudes toward homework). Findings show that students value homework, that few teachers regularly check homework, and that there are sex differences between Arab and Jewish…

Anxiety and the School Experience.

ERIC Educational Resources Information Center

Docking, Russell A.; Thornton, Jennifer A.

The Zuckerman Affect Adjective Check List (AACL) is used to measure trait anxiety and situation-specific trait anxiety relating to peer interaction, vocational aspiration, and the learning of English, mathematics, science and social studies. The subjects were 262 grade 10 students attending an Australian metropolitan high school. Additional…

Iodomethane phytotoxicity: potential role of plant nutrient uptake

USDA-ARS?s Scientific Manuscript database

In the spring of 2006 multi-year studies were initiated to evaluate the efficacy of Midas™ (iodomethane:chloropicrin 50:50, Arysta LifeScience Corp., Cary, NC) for production of ornamental cockscomb (Celosia argentea var. cristata) in Martin County, Florida. Treatments were untreated check, Midas™ a...

Climate Change Science Activities of the U.S. Geological Survey in New England

USGS Publications Warehouse

Lent, Robert M.

2016-03-23

This fact sheet presents recent climate change investigations of the USGS in New England using selected recent publications. These publications highlight the broad spectrum of expertise and commitment to understanding the relations of climate change and water resources in New England.

Gut Check: The evolution of an educational board game

PubMed Central

Ettinger, Cassandra L.; Eisen, Jonathan A.

2017-01-01

The “gamification” of science has gained a lot of traction in recent years, and games that convey scientific concepts or themes are increasingly popular. While a number of existing games touch on microbiology, very few consider the beneficial (as opposed to the detrimental) aspects of microbes. We designed a board game called “Gut Check: The Microbiome Game” to fill this gap. The game is meant to be both educational as well as challenging and fun. Here we discuss the development of the game, some of the logistics of game development in this context, and offer suggestions for others thinking of similar projects. PMID:28453514

Earth and environmental science in the 1980's: Part 1: Environmental data systems, supercomputer facilities and networks

NASA Technical Reports Server (NTRS)

1986-01-01

Overview descriptions of on-line environmental data systems, supercomputer facilities, and networks are presented. Each description addresses the concepts of content, capability, and user access relevant to the point of view of potential utilization by the Earth and environmental science community. The information on similar systems or facilities is presented in parallel fashion to encourage and facilitate intercomparison. In addition, summary sheets are given for each description, and a summary table precedes each section.

Wideband Instrument for Snow Measurements (WISM)

NASA Technical Reports Server (NTRS)

Miranda, Felix A.

2015-01-01

This presentation provides a brief summary of the utility of a wideband active and passive (radar and radiometer, respectively) instrument (8-40 GHz) to support the snow science community. The effort seeks to improve snow measurements through advanced calibration and expanded frequency of active and passive sensors and to demonstrate their science utility through airborne retrievals of snow water equivalent (SWE). In addition the effort seeks to advance the technology readiness of broadband current sheet array (CSA) antenna technology for spaceflight applications.

Wideband Instrument for Snow Measurements (WISM)

NASA Technical Reports Server (NTRS)

Miranda, Felix A.; Lambert, Kevin M.; Romanofsky, Robert R.; Durham, Tim; Speed, Kerry; Lange, Robert; Olsen, Art; Smith, Brett; Taylor, Robert; Schmidt, Mark;

Advance modern medicine with clinical case reports.

PubMed

Wáng, Yì-Xiáng J

2014-12-01

Randomized clinical trial (RCT) can fail to demonstrate the richness of individual patient characteristics. Given the unpredictable nature of medicine, a patient may present in an unusual way, have a strange new pathology, or react to a medical intervention in a manner not seen before. The publication of these novelties as case reports is a fundamental way of conveying medical knowledge. Throughout history there have been famous case studies that shaped the way we view health and disease. Case reports can have the following functions: (I) descriptions of new diseases; (II) study of mechanisms; (III) discovery new therapies; (IV) recognition of side effects; and (V) education. Before submitting a case report, it is worthwhile to refer to the Case Report Check Sheet described by Green and Johnson [2006].

Force testing manual for the Langley 20-inch Mach 6 tunnel

NASA Technical Reports Server (NTRS)

Keyes, J. W.

1977-01-01

Data reduction and procedures for conducting force tests in a 20 inch Mach 6 tunnel are described. A discussion of pretest and testing phases are included. Items that are to be checked during model design and construction are outlined as well as safety requirements, starting loads tests, instructions for data acquisition and model installation. Measurement of balance and model misalignment and instructions for calibrating the angle of attack screen are covered. Procedures for making reference pressure, attitude tare, and data runs are included. The 20 inch tunnel force program is examined, and a description of data recording system input and load contrast sheets is given. An appendix presents a description, operating characteristics, and Mach number calibration of the tunnel, as well as tunnel characteristics.

New flange correction formula applied to interfacial resistance measurements of ohmic contacts to GaAs

NASA Technical Reports Server (NTRS)

Lieneweg, Udo; Hannaman, David J.

1987-01-01

A quasi-two-dimensional analytical model is developed to account for vertical and horizontal current flow in and adjacent to a square ohmic contact between a metal and a thin semiconducting strip which is wider than the contact. The model includes side taps to the contact area for voltage probing and relates the 'apparent' interfacial resistivity to the (true) interfacial resistivity, the sheet resistance of the semiconducting layer, the contact size, and the width of the 'flange' around the contact. This relation is checked against numerical simulations. With the help of the model, interfacial resistivities of ohmic contacts to GaAs were extracted and found independent of contact size in the range of 1.5-10 microns.

20. 'Erection Plan, Renewal of Bridge 210 C over Sacramento ...

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

20. 'Erection Plan, Renewal of Bridge 210 C over Sacramento River near Tehama, Calif., 3 140'-0' S. T. Riveted Thru Truss Spans, 17'-9' C. to C. Trusses, 31'-0' C. To C. Chords. U.S.S. P. Co. Pacific Coast Dept., Order No. SF 604, Southern Pacific Co., Order No. 51168-P-38428, 1925 Specifications, Scale in. ft., American Bridge Co., Ambridge Plant, Dwgs. made at Ambridge No. 5 in charge of Reehl, Detailed by W.F.R., Date, Checked by L.A.E., Date 1/5/29, Fld. conn. chk. by ENN, Date 3/9/29, Order No. F5659, Sheet No. E3.' - Southern Pacific Railroad Shasta Route, Bridge No. 210.52, Milepost 210.52, Tehama, Tehama County, CA

Guidelines and Recommendations for New Hampshire Public Elementary Schools, Kindergarten--Grade 6.

ERIC Educational Resources Information Center

New Hampshire State Dept. of Education, Concord.

Sections concerned with facilities deal with library services, equipment and facilities for science and physical education, and the school building. Recommendations for library service include check lists and standards pertaining to objectives, basic equipment and supplies, individual classroom collections, audio visual collections, library…

Laboratory Safety and Management

ERIC Educational Resources Information Center

Goodenough, T. J.

1976-01-01

Explains a scientific approach to accident prevention and outlines the safety aspects associated with the handling of chemicals in the secondary school. Provides a check list of unsafe acts and conditions, outlines features of good laboratory management, and gives hints for combating the effects of inflation on science budgets. (GS)

KSC-00pp1842

NASA Image and Video Library

2000-12-05

KENNEDY SPACE CENTER, Fla. -- STS-107 crew members take part in In-Flight Maintenance training for their mission. Under the watchful eyes of SPACEHAB trainer David Butler (left), Payload Specialist Ilan Ramon of Israel (center) and Mission Specialist David M. Brown (right) check equipment and paperwork inside the SPACEHAB Double Module. Research mission STS-107, scheduled to launch July 19, 2001, will carry the SPACEHAB Double Module in its first flight into space and a broad collection of experiments ranging from material science to life science

KSC00pp1842

NASA Image and Video Library

2000-12-05

KENNEDY SPACE CENTER, Fla. -- STS-107 crew members take part in In-Flight Maintenance training for their mission. Under the watchful eyes of SPACEHAB trainer David Butler (left), Payload Specialist Ilan Ramon of Israel (center) and Mission Specialist David M. Brown (right) check equipment and paperwork inside the SPACEHAB Double Module. Research mission STS-107, scheduled to launch July 19, 2001, will carry the SPACEHAB Double Module in its first flight into space and a broad collection of experiments ranging from material science to life science

KSC01PD1861

NASA Image and Video Library

2001-12-10

KENNEDY SPACE CENTER, FLA. -- At SPACEHAB in Cape Canaveral, Fla., STS-107 Mission Specialists Ilan Ramon of Israel and Laurel Clark check out the equipment for the mission. STS-107 is a research mission, and the primary payload is the first flight of the SHI Research Double Module (SHI/RDM). The experiments range from material sciences to life sciences (many rats). Among the experiments is a Hitchhiker carrier system, modular and expandable in accordance with payload requirements. STS-107 is scheduled to launch in June 2002

Direct Laser Writing of Single-Material Sheets with Programmable Self-Rolling Capability

NASA Astrophysics Data System (ADS)

Bauhofer, Anton; KröDel, Sebastian; Bilal, Osama; Daraio, Chiara; Constantinescu, Andrei

Direct laser writing, a sub-class of two-photon polymerization, facilitates 3D-printing of single-material microstructures with inherent residual stresses. Here we show that controlled distribution of these stresses allows for fast and cost-effective fabrication of structures with programmable self-rolling capability. We investigate 2D sheets that evolve into versatile 3D structures. Precise control over the shape morphing potential is acquired through variations in geometry and writing parameters. Effects of capillary action and gravity were shown to be relevant for very thin sheets (thickness <1.5um) and have been analytically and experimentally quantified. In contrast to that, the deformations of sheets with larger thickness (>1.5um) are dominated by residual stresses and adhesion forces. The presented structures create local tensions up to 180MPa, causing rolling curvatures of 25E3m-1. A comprehensive analytical model that captures the relevant influence factors was developed based on laminate plate theory. The predicted curvature and directionality correspond well with the experimentally obtained data. Potential applications are found in drug encapsulation and particle traps for emulsions with differing surface energies. This work was supported by the Swiss National Science Foundation.

Unraveling metamaterial properties in zigzag-base folded sheets.

PubMed

Eidini, Maryam; Paulino, Glaucio H

2015-09-01

Creating complex spatial objects from a flat sheet of material using origami folding techniques has attracted attention in science and engineering. In the present work, we use the geometric properties of partially folded zigzag strips to better describe the kinematics of known zigzag/herringbone-base folded sheet metamaterials such as Miura-ori. Inspired by the kinematics of a one-degree of freedom zigzag strip, we introduce a class of cellular folded mechanical metamaterials comprising different scales of zigzag strips. This class of patterns combines origami folding techniques with kirigami. Using analytical and numerical models, we study the key mechanical properties of the folded materials. We show that our class of patterns, by expanding on the design space of Miura-ori, is appropriate for a wide range of applications from mechanical metamaterials to deployable structures at small and large scales. We further show that, depending on the geometry, these materials exhibit either negative or positive in-plane Poisson's ratios. By introducing a class of zigzag-base materials in the current study, we unify the concept of in-plane Poisson's ratio for similar materials in the literature and extend it to the class of zigzag-base folded sheet materials.

Getting Mercury out of Schools.

ERIC Educational Resources Information Center

1999

This guide was prepared while working with many Massachusetts schools to remove items that contain mercury and to find suitable alternatives. It contains fact sheets on: mercury in science laboratories and classrooms, mercury in school buildings and maintenance areas, mercury in the medical office and in medical technology classrooms in vocational…

Divisions of geologic time (Bookmark)

USGS Publications Warehouse

,

2012-05-03

DescriptionThis bookmark, designed for use with U.S. Geological Survey activities at the second USA Science and Engineering Festival (April 26–29, 2012), is adapted from the more detailed Fact Sheet 2010–3059 "Divisions of Geologic Time." The information that it presents is widely sought by educators and students.

Unit Charge, First Trial Materials, Inspection Set.

ERIC Educational Resources Information Center

Australian Science Education Project, Toorak, Victoria.

The first trial edition of the Australian Science Education Project unit introducing the concepts of electrical charge consists of a student workbook, question booklet and a response sheet, and a booklet containing answers to the questions in the workbook and question booklet. The teacher's guide outlines the unit, lists suggested teaching…

Land management practices to become important as biofuels use grows |

Science.gov Websites

Media Photos Videos Fact Sheets, Brochures and Reports Summer Science Writing Internship Land management , making land management practices increasingly important, especially under a scenario where cellulosic impact of agricultural land use and management on U.S. carbon budgets," recently published in the

Energy from the Atom.

ERIC Educational Resources Information Center

Smith, Patricia L.

This curriculum guide was written to supplement fifth and sixth grade science units on matter and energy. It was designed to provide more in-depth material on the atom. The first part, "Teacher Guide," contains background information, biographical sketches of persons in the history of nuclear energy, vocabulary, answer sheets, management sheets…

A National Study of Mathematics Requirements for Scientists and Engineers. Final Report.

ERIC Educational Resources Information Center

Miller, G. H.

The National Study of Mathematics Requirements for Scientists and Engineers is concerned with establishing the mathematics experiences desired for the many specializations in science and engineering, such as microbiology, organic chemistry, electrical engineering, and molecular physics. An instruction and course content sheet and a course…

Paper

ERIC Educational Resources Information Center

Kamata, Masahiro; Yajima, Seiko

2013-01-01

An educational experiment illustrates the electrolysis of water and copper chloride to middle school science students. The electrolysis cell is composed of filter paper soaked with Na[subscript 2]SO[subscript 4] or CuCl[subscript 2] aqueous solution sandwiched, along with a sheet of platinum foil, between two coin-type lithium batteries. When the…

Engineering Research Centers: A Partnership for Competitiveness.

ERIC Educational Resources Information Center

National Science Foundation, Arlington, VA.

This publication consists of colorful data sheets on the National Science Foundation's Engineering Research Centers (ERC) Program, a program designed to strengthen the competitiveness of U.S. industries by bringing new approaches and goals to academic engineering research and education. The main elements of the ERC mission are cross-disciplinary…

Four Argonne National Laboratory scientists receive Early Career Research

Science.gov Websites

Media Contacts Social Media Photos Videos Fact Sheets, Brochures and Reports Summer Science Writing Writing Internship Four Argonne National Laboratory scientists receive Early Career Research Program economic impact of cascading shortages. He will also seek to enable scaling on high-performance computing

Fermilab | Science at Fermilab | Computing

Science.gov Websites

Book Newsroom Newsroom News and features Press releases Photo gallery Fact sheets and brochures Media media Video of shutdown event Guest book Tevatron Impact June 11, 2012 About the symposium Symposium , Legal Use of Cookies Quick Links Home Contact Phone Book Fermilab at Work For Industry Jobs Interact

Fermilab | Tritium at Fermilab

Science.gov Websites

Book Newsroom Newsroom News and features Press releases Photo gallery Fact sheets and brochures Media media Video of shutdown event Guest book Tevatron Impact June 11, 2012 About the symposium Symposium Energy Office of Science Security, Privacy, Legal Use of Cookies Quick Links Home Contact Phone Book

Fermilab | Science at Fermilab | Computing | Grid Computing

Science.gov Websites

Book Newsroom Newsroom News and features Press releases Photo gallery Fact sheets and brochures Media media Video of shutdown event Guest book Tevatron Impact June 11, 2012 About the symposium Symposium Book Fermilab at Work For Industry Jobs Interact Facebook Twitter Instagram Google+ YouTube Flickr

Fermilab | Science at Fermilab | Computing | Networking

Science.gov Websites

Book Newsroom Newsroom News and features Press releases Photo gallery Fact sheets and brochures Media media Video of shutdown event Guest book Tevatron Impact June 11, 2012 About the symposium Symposium Links Home Contact Phone Book Fermilab at Work For Industry Jobs Interact Facebook Twitter Instagram

Fermilab | Resources for

Science.gov Websites

Book Newsroom Newsroom News and features Press releases Photo gallery Fact sheets and brochures Media Tevatron experiments Tevatron operation Shutdown process For the media Video of shutdown event Guest book Science Security, Privacy, Legal Use of Cookies Quick Links Home Contact Phone Book Fermilab at Work For

Fermilab | Tevatron | Tevatron Symposium

Science.gov Websites

Book Newsroom Newsroom News and features Press releases Photo gallery Fact sheets and brochures Media media Video of shutdown event Guest book Tevatron Impact June 11, 2012 About the symposium Symposium Energy Office of Science Security, Privacy, Legal Use of Cookies Quick Links Home Contact Phone Book

Fermilab | Tevatron | Shutdown Process

Science.gov Websites

Book Newsroom Newsroom News and features Press releases Photo gallery Fact sheets and brochures Media media Video of shutdown event Guest book Tevatron Impact June 11, 2012 About the symposium Symposium Science Security, Privacy, Legal Use of Cookies Quick Links Home Contact Phone Book Fermilab at Work For

Fermilab | Science | Particle Physics

Science.gov Websites

Book Newsroom Newsroom News and features Press releases Photo gallery Fact sheets and brochures Media media Video of shutdown event Guest book Tevatron Impact June 11, 2012 About the symposium Symposium Quick Links Home Contact Phone Book Fermilab at Work For Industry Jobs Interact Facebook Twitter

Soil, Plant, and Crop Science. Teacher Edition.

ERIC Educational Resources Information Center

Oklahoma State Dept. of Vocational and Technical Education, Stillwater. Curriculum and Instructional Materials Center.

This package contains an instructor's manual, an instructor's resource package, and a student workbook for a course in agricultural production and management as it relates to crop production. The module contains 17 units of instruction, each of which contains some or all of the following components: objective sheet, instructor's guide, information…

Proceedings of the 24th Project Integration Meeting

NASA Technical Reports Server (NTRS)

Tustin, D.

1984-01-01

Progress made by the Flat-Plate Solar Array Project is described. Reports on silicon sheet growth and characterization, silicon material, process development, high-efficiency cells, environmental isolation, engineering sciences, and reliability physics are presented along with copies of visual presentations made at the 24th Project Integration Meeting.

Solar system lithograph set for earth and space science

NASA Technical Reports Server (NTRS)

1995-01-01

A color lithographs of many of the celestial bodies within our solar system are contained in this educational set of materials. Printed on the back of each lithograph is information regarding the particular celestial body. A sheet with information listing NASA resources and electronic resources for education is included.

English Learners' (ELs') Trends from the Nation's Report Card. Fast Facts

ERIC Educational Resources Information Center

Office of English Language Acquisition, US Department of Education, 2016

2016-01-01

The National Assessment of Educational Progress (NAEP), also known as the Nation's Report Card, is the largest continuing and nationally representative assessment of what students know about mathematics, reading, science, writing, the arts, civics, economics, geography, U.S. history, and technology and engineering literacy. This fact sheet reports…

The Development and Validation of the Inquiry Science Observation Coding Sheet

ERIC Educational Resources Information Center

Brandon, P. R.; Taum, A. K. H.; Young, D. B.; Pottenger, F. M., III

2008-01-01

Evaluation reports increasingly document the degree of program implementation, particularly the extent to which programs adhere to prescribed steps and procedures. Many reports are cursory, however, and few, if any, fully portray the long and winding path taken when developing evaluation instruments, particularly observation instruments. In this…

Gender, mathematics, reading comprehension and science reasoning as predictors of science achievement among African-American students at a historical black college or university

NASA Astrophysics Data System (ADS)

Davis, Consuella Artiemese

This study investigated predictors that influence the science achievement of African-American non-science majors in a Physical Science class. The population consisted of male and female college students enrolled in Physical Science courses at a historical black college or university (HBCU) located in the southeastern portion of the United States. A personal data information sheet was administered to 120 participants during the Fall of 2008. The personal data information sheet consisted of questions pertaining to the high school courses, students took in math, language arts and science. It also consisted of basic background information. Students also gave written consent for their midterm and final grades earned in Physical Science to be used in the study as part of the analyses. A t-Test including chi-square tests revealed that there was not a significant difference in the raw scores of African-American females and African American males on the American College Test. A significant difference was not observed between the females and males on the ACT math subtest, t (118) = -.78, p = .43; reading comprehension subtest, t (118) = -1.44, .15 or on the science reasoning subtest, t (118) = -1.46, p = .15. A significant difference was not found between the final grades of African American females and the final grades of African American males. Chi-square tests were conducted to determine goodness of fit, X2 = 6.11, df = 1, p = .191. Although the grades of females were higher than males, results were not significant. The correlation between math ACT and final grades were not significant, r = .131, N = 120, p = .155, reading comprehension ACT and final grades were not significant, r = .072, N = 120, p = .434 and science reasoning ACT and final grades were found not to be significant, r = .109, N = 120, p = .237. Being that the majority of students who participated in the study were from one state, had similar high school backgrounds, had similar majors and were similar in age the sample had more homogeneity than difference. This may be the most plausible explanation for the results found in this study.

Characterizing Active Ingredients of eHealth Interventions Targeting Persons With Poorly Controlled Type 2 Diabetes Mellitus Using the Behavior Change Techniques Taxonomy: Scoping Review

PubMed Central

Liedtke, Tatjana P; Möllers, Tobias; Pischke, Claudia R

2017-01-01

Background The behavior change technique taxonomy v1 (BCTTv1; Michie and colleagues, 2013) is a comprehensive tool to characterize active ingredients of interventions and includes 93 labels that are hierarchically clustered into 16 hierarchical clusters. Objective The aim of this study was to identify the active ingredients in electronic health (eHealth) interventions targeting patients with poorly controlled type 2 diabetes mellitus (T2DM) and relevant outcomes. Methods We conducted a scoping review using the BCTTv1. Randomized controlled trials (RCTs), studies with or pre-post-test designs, and quasi-experimental studies examining efficacy and effectiveness of eHealth interventions for disease management or the promotion of relevant health behaviors were identified by searching PubMed, Web of Science, and PsycINFO. Reviewers independently screened titles and abstracts for eligibility using predetermined eligibility criteria. Data were extracted following a data extraction sheet. The BCTTv1 was used to characterize active ingredients of the interventions reported in the included studies. Results Of the 1404 unique records screened, 32 studies fulfilled the inclusion criteria and reported results on the efficacy and or or effectiveness of interventions. Of the included 32 studies, 18 (56%) were Web-based interventions delivered via personal digital assistant (PDA), tablet, computer, and/or mobile phones; 7 (22%) were telehealth interventions delivered via landline; 6 (19%) made use of text messaging (short service message, SMS); and 1 employed videoconferencing (3%). Of the 16 hierarchical clusters of the BCTTv1, 11 were identified in interventions included in this review. Of the 93 individual behavior change techniques (BCTs), 31 were identified as active ingredients of the interventions. The most common BCTs identified were instruction on how to perform behavior, adding objects to the environment, information about health consequences, self-monitoring of the outcomes and/or and prefers to be explicit to avoid ambiguity. Response: Checked and avoided of a certain behavior Author: Please note that the journal discourages the use of parenthesis to denote either and/or and prefers to be explicit to avoid ambiguity. Response: Checked and avoided “and/or” and prefers to be explicit to avoid ambiguity. Response: Checked and avoided, and feedback on outcomes of behavior. Conclusions Our results suggest that the majority of BCTs employed in interventions targeting persons with T2DM revolve around the promotion of self-regulatory behavior to manage the disease or to assist patients in performing health behaviors necessary to prevent further complications of the disease. Detailed reporting of the BCTs included in interventions targeting this population may facilitate the replication and further investigation of such interventions. PMID:29025693

KSC-2012-5328

NASA Image and Video Library

2012-09-13

VANDENBERG AFB, Calif. – Technicians perform a fit check on an Orbital Sciences Pegasus rocket as the launcher is processed for the Interface Region Imaging Spectrograph mission known as IRIS. The technicians are attaching the portion of the Pegasus that joins the wing to the fuselage, a piece called a fillet. Photo credit: VAFB/Randy Beaudoin

KSC-2012-5326

NASA Image and Video Library

2012-09-13

VANDENBERG AFB, Calif. – Technicians perform a fit check on an Orbital Sciences Pegasus rocket as the launcher is processed for the Interface Region Imaging Spectrograph mission known as IRIS. The technicians are attaching the portion of the Pegasus that joins the wing to the fuselage, a piece called a fillet. Photo credit: VAFB/Randy Beaudoin

KSC-2012-5327

NASA Image and Video Library

2012-09-13

VANDENBERG AFB, Calif. – Technicians perform a fit check on an Orbital Sciences Pegasus rocket as the launcher is processed for the Interface Region Imaging Spectrograph mission known as IRIS. The technicians are attaching the portion of the Pegasus that joins the wing to the fuselage, a piece called a fillet. Photo credit: VAFB/Randy Beaudoin

KSC-2012-5325

NASA Image and Video Library

2012-09-13

VANDENBERG AFB, Calif. – Technicians perform a fit check on an Orbital Sciences Pegasus rocket as the launcher is processed for the Interface Region Imaging Spectrograph mission known as IRIS. The technicians are attaching the portion of the Pegasus that joins the wing to the fuselage, a piece called a fillet. Photo credit: VAFB/Randy Beaudoin

Plagiarism in Grant Proposals

ERIC Educational Resources Information Center

Markin, Karen M.

2012-01-01

It is not news that software exists to check undergraduate papers for plagiarism. What is less well known is that some federal grant agencies are using technology to detect plagiarism in grant proposals. That variety of research misconduct is a growing problem, according to federal experts. The National Science Foundation, in its most recent…

Decoding tree DNA

Treesearch

M. Thompson Conkle

1986-01-01

Check the laboratory reports after your next physical. You'll find information on a number of biochemical processes. Procedures like those used in the medical sciences are yielding valuable information about genetic differences among trees and tree pests. New procedures that provide ways to isolate and move genes are advancing progress in tree improvement. These...

Checks and Balances: Keeping the Science in Our Profession.

ERIC Educational Resources Information Center

Apel, Kenn

1999-01-01

Discusses five major discrepancies in speech and language pathology practices and offers suggestions for reconciling them. Discrepancies include the separation of clinicians and scientists, the definition of language, the role of theory in intervention, the approach as it relates to product for language intervention, and the meaning of best…

Importance of Survey Design for Studying the Epidemiology of Emerging Tobacco Product Use Among Youth.

PubMed

Delnevo, Cristine D; Gundersen, Daniel A; Manderski, Michelle T B; Giovenco, Daniel P; Giovino, Gary A

2017-08-15

Accurate surveillance is critical for monitoring the epidemiology of emerging tobacco products in the United States, and survey science suggests that survey response format can impact prevalence estimates. We utilized data from the 2014 New Jersey Youth Tobacco Survey (n = 3,909) to compare estimates of the prevalence of 4 behaviors (ever hookah use, current hookah use, ever e-cigarette use, and current e-cigarette use) among New Jersey high school students, as assessed using "check-all-that-apply" questions, with estimates measured by means of "forced-choice" questions. Measurement discrepancies were apparent for all 4 outcomes, with the forced-choice questions yielding prevalence estimates approximately twice those of the check-all-that-apply questions, and agreement was fair to moderate. The sensitivity of the check-all-that-apply questions, treating the forced-choice format as the "gold standard," ranged from 38.1% (current hookah use) to 58.3% (ever e-cigarette use), indicating substantial false-negative rates. These findings highlight the impact of question response format on prevalence estimates of emerging tobacco products among youth and suggest that estimates generated by means of check-all-that-apply questions may be biased downward. Alternative survey designs should be considered to avoid check-all-that-apply response formats, and researchers should use caution when interpreting tobacco use data obtained from check-all-that-apply formats. © The Author(s) 2017. Published by Oxford University Press on behalf of the Johns Hopkins Bloomberg School of Public Health. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.

Spitzer Science operations: the good, the bad, and the ugly

NASA Astrophysics Data System (ADS)

Levine, Deborah A.

2008-07-01

We review the Spitzer Space Telescope Science Center operations teams and processes and their interfaces with other Project elements -- what we planned early in the development of the science center, what we had at a launch and what we have now and why. We also explore the checks and balances behind building an organizational structure that supports constructive airing of conflicts and a timely resolution that balances the inputs and provides for very efficient on-orbit operations. For example, what organizational roles are involved in reviewing observing schedules, what constituency do they represent and who has authority to approve or disapprove the schedule.

KSC-02pd0753

NASA Image and Video Library

2002-05-24

KENNEDY SPACE CENTER, FLA. - STS-107 Payload Specialist Ilan Ramon (left), with the Israeli Space Agency, and Payload Commander Michael Anderson pause during a payload check in the Orbiter Processing Facility. A research mission, STS-107 will carry as the primary payload the first flight of the SHI Research Double Module (SHI/RDM), also known as SPACEHAB. The experiments range from material sciences to life sciences. Another payload is FREESTAR (Fast Reaction Experiments Enabling Science, Technology, Applications and Research) comprising Mediterranean Israeli Dust, Solar Constant, Shuttle Ozone Limb Sounding, Critical Viscosity of Xenon, Low Power, and Space Experimental Module experiments. STS-107 is scheduled to launch July 11, 2002

Synthesis of borophenes: Anisotropic, two-dimensional boron polymorphs.

PubMed

Mannix, Andrew J; Zhou, Xiang-Feng; Kiraly, Brian; Wood, Joshua D; Alducin, Diego; Myers, Benjamin D; Liu, Xiaolong; Fisher, Brandon L; Santiago, Ulises; Guest, Jeffrey R; Yacaman, Miguel Jose; Ponce, Arturo; Oganov, Artem R; Hersam, Mark C; Guisinger, Nathan P

2015-12-18

At the atomic-cluster scale, pure boron is markedly similar to carbon, forming simple planar molecules and cage-like fullerenes. Theoretical studies predict that two-dimensional (2D) boron sheets will adopt an atomic configuration similar to that of boron atomic clusters. We synthesized atomically thin, crystalline 2D boron sheets (i.e., borophene) on silver surfaces under ultrahigh-vacuum conditions. Atomic-scale characterization, supported by theoretical calculations, revealed structures reminiscent of fused boron clusters with multiple scales of anisotropic, out-of-plane buckling. Unlike bulk boron allotropes, borophene shows metallic characteristics that are consistent with predictions of a highly anisotropic, 2D metal. Copyright © 2015, American Association for the Advancement of Science.

The Joint Fire Science Program Fire Exchange Network: Facilitating Knowledge Exchange About Wildland Fire Science Across the U.S.

NASA Astrophysics Data System (ADS)

York, A.; Blocksome, C.; Cheng, T.; Creighton, J.; Edwards, G.; Frederick, S.; Giardina, C. P.; Goebel, P. C.; Gucker, C.; Kobziar, L.; Lane, E.; Leis, S.; Long, A.; Maier, C.; Marschall, J.; McGowan-Stinski, J.; Mohr, H.; MontBlanc, E.; Pellant, M.; Pickett, E.; Seesholtz, D.; Skowronski, N.; Stambaugh, M. C.; Stephens, S.; Thode, A.; Trainor, S. F.; Waldrop, T.; Wolfson, B.; Wright, V.; Zedler, P.

2014-12-01

The Joint Fire Science Program's (JFSP) Fire Exchange Network is actively working to accelerate the awareness, understanding, and adoption of wildland fire science information by federal, tribal, state, local, and private stakeholders within ecologically similar regions. Our network of 15 regional exchanges provides timely, accurate, and regionally relevant science-based information to assist with fire management challenges. Regional activities, through which we engage fire and resource managers, scientists, and private landowners, include online newsletters and announcements, social media, regionally focused web-based clearinghouses of relevant science, field trips and demonstration sites, workshops and conferences, webinars and online training, and syntheses and fact sheets. Exchanges also help investigators design research that is relevant to regional management needs and assist with technology transfer to management audiences. This poster provides an introduction to and map of the regional exchanges.

Recent Observations of Increased Thinning of the Greenland Ice Sheet Measured by Aircraft GPS and Laser Altimetry

NASA Technical Reports Server (NTRS)

Krabill, William B.

2004-01-01

The Arctic Ice Mapping group (Project AIM) at the NASA Goddard Space Flight Center Wallops Flight Facility has been conducting systematic topographic surveys of the Greenland Ice Sheet (GIs) since 1993, using scanning airborne laser altimeters combined with Global Positioning System (GPS) technology onboard NASA's P-3 aircraft. Flight lines have covered all major ice drainage basins, with repeating surveys after a 5-year interval during the decade of the 90's. Analysis of this data documented significant thinning in many areas near the ice sheet margins and an overall negative mass balance of the GIS (Science, 2000). In 2001, 2002, and 2003 many of these flight lines were re-surveyed, providing evidence of continued or accelerated thinning in all observed areas around the margin of the GIs. Additionally, however, a highly-anomalous snowfall was observed between 2002 and 2003 in SE Greenland - perhaps an indicator of a shift in the regional climate?

Wrapping with a splash: High-speed encapsulation with ultrathin sheets.

PubMed

Kumar, Deepak; Paulsen, Joseph D; Russell, Thomas P; Menon, Narayanan

2018-02-16

Many complex fluids rely on surfactants to contain, protect, or isolate liquid drops in an immiscible continuous phase. Thin elastic sheets can wrap liquid drops in a spontaneous process driven by capillary forces. For encapsulation by sheets to be practically viable, a rapid, continuous, and scalable process is essential. We exploit the fast dynamics of droplet impact to achieve wrapping of oil droplets by ultrathin polymer films in a water phase. Despite the violence of splashing events, the process robustly yields wrappings that are optimally shaped to maximize the enclosed fluid volume and have near-perfect seams. We achieve wrappings of targeted three-dimensional (3D) shapes by tailoring the 2D boundary of the films and show the generality of the technique by producing both oil-in-water and water-in-oil wrappings. Copyright © 2018 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works.

Magnetic flux pile-up and ion heating in a current sheet formed by colliding magnetized plasma flows

NASA Astrophysics Data System (ADS)

Suttle, L.; Hare, J.; Lebedev, S.; Ciardi, A.; Loureiro, N.; Niasse, N.; Burdiak, G.; Clayson, T.; Lane, T.; Robinson, T.; Smith, R.; Stuart, N.; Suzuki-Vidal, F.

2017-10-01

We present data from experiments carried out at the Magpie pulsed power facility, which show the detailed structure of the interaction of counter-streaming magnetized plasma flows. In our quasi-2D setup, continuous supersonic flows are produced with strong embedded magnetic fields of opposing directions. Their interaction leads to the formation of a dense and long-lasting current sheet, where we observe the pile-up of the magnetic flux at the sheet boundary, as well as the annihilation of field inside, accompanied by an increase in plasma temperature. Spatially resolved measurements with Faraday rotation polarimetry, B-dot probes, XUV imaging, Thomson scattering and laser interferometry diagnostics show the detailed distribution of the magnetic field and other plasma parameters throughout the system. This work was supported in part by the Engineering and Physical Sciences Research Council (EPSRC) Grant No. EP/G001324/1, and by the U.S. Department of Energy (DOE) Awards No. DE-F03-02NA00057 and No. DE-SC-0001063.

Greenland Ice Sheet in 3D Cutaway

NASA Image and Video Library

2017-12-08

Peering into the thousands of frozen layers inside Greenland’s ice sheet is like looking back in time. Each layer provides a record of what Earth’s climate was like at the dawn of civilization, or during the last ice age, or during an ancient period of warmth similar to the one we experience today. Scientists using ice-penetrating radar data collected by NASA’s Operation IceBridge and earlier airborne campaigns have built the first-ever comprehensive map of layers deep inside the Greenland Ice Sheet. View the full video: youtu.be/u0VbPE0TOtQ Credit: NASA’s Goddard Space Flight Center NASA image use policy. NASA Goddard Space Flight Center enables NASA’s mission through four scientific endeavors: Earth Science, Heliophysics, Solar System Exploration, and Astrophysics. Goddard plays a leading role in NASA’s accomplishments by contributing compelling scientific knowledge to advance the Agency’s mission. Follow us on Twitter Like us on Facebook Find us on Instagram

Understanding our Changing Planet: NASA's Earth Science Enterprise

NASA Technical Reports Server (NTRS)

Forehand, Lon; Griner, Charlotte (Editor); Greenstone, Renny (Editor)

1999-01-01

NASA has been studying the Earth and its changing environment by observing the atmosphere, oceans, land, ice, and snow and their influence on climate and weather since the agency's creation. This study has lead to a new approach to understanding the interaction of the Earth's systems, Earth System Science. The Earth Science Enterprise, NASA's comprehensive program for Earth System Science, uses satellites and other tools to intensively study the Earth. The Earth Science Enterprise has three main components: (1) a series of Earth-observing satellites, (2) an advanced data system and (3) teams of scientist who study the data. Key areas of study include: (1) clouds, (2) water and energy cycles, (3) oceans, (4) chemistry of the atmosphere, (5) land surface, water and ecosystems processes; (6) glaciers and polar ice sheets, and (7) the solid earth.

Preparing for ICESat-2: Simulated Geolocated Photon Data for Cryospheric Data Products

NASA Astrophysics Data System (ADS)

Harbeck, K.; Neumann, T.; Lee, J.; Hancock, D.; Brenner, A. C.; Markus, T.

2017-12-01

ICESat-2 will carry NASA's next-generation laser altimeter, ATLAS (Advanced Topographic Laser Altimeter System), which is designed to measure changes in ice sheet height, sea ice freeboard, and vegetation canopy height. There is a critical need for data that simulate what certain ICESat-2 science data products will "look like" post-launch in order to aid the data product development process. There are several sources for simulated photon-counting lidar data, including data from NASA's MABEL (Multiple Altimeter Beam Experimental Lidar) instrument, and M-ATLAS (MABEL data that has been scaled geometrically and radiometrically to be more similar to that expected from ATLAS). From these sources, we are able to develop simulated granules of the geolocated photon cloud product; also referred to as ATL03. These simulated ATL03 granules can be further processed into the upper-level data products that report ice sheet height, sea ice freeboard, and vegetation canopy height. For ice sheet height (ATL06) and sea ice height (ATL07) simulations, both MABEL and M-ATLAS data products are used. M-ATLAS data use ATLAS engineering design cases for signal and background noise rates over certain surface types, and also provides large vertical windows of data for more accurate calculations of atmospheric background rates. MABEL data give a more accurate representation of background noise rates over areas of water (i.e., melt ponds, crevasses or sea ice leads) versus land or solid ice. Through a variety of data manipulation procedures, we provide a product that mimics the appearance and parameter characterization of ATL03 data granules. There are three primary goals for generating this simulated ATL03 dataset: (1) allowing end users to become familiar with using the large photon cloud datasets that will be the primary science data product from ICESat-2, (2) the process ensures that ATL03 data can flow seamlessly through upper-level science data product algorithms, and (3) the process ensures parameter traceability through ATL03 and upper-level data products. We will present a summary of how simulated data products are generated, the cryospheric data product applications for this simulated data (specifically ice sheet height and sea ice freeboard), and where these simulated datasets are available to the ICESat-2 data user community.

Construction materials as a waste management solution for cellulose sludge

DOE Office of Scientific and Technical Information (OSTI.GOV)

Modolo, R., E-mail: regina.modolo@ua.pt; Ferreira, V.M.; Machado, L.M.

2011-02-15

Sustainable waste management system for effluents treatment sludge has been a pressing issue for pulp and paper sector. Recycling is always recommended in terms of environmental sustainability. Following an approach of waste valorisation, this work aims to demonstrate the technical viability of producing fiber-cement roof sheets incorporating cellulose primary sludge generated on paper and pulp mills. From the results obtained with preliminary studies it was possible to verify the possibility of producing fiber-cement sheets by replacing 25% of the conventional used virgin long fiber by primary effluent treatment cellulose sludge. This amount of incorporation was tested on an industrial scale.more » Environmental parameters related to water and waste, as well as tests for checking the quality of the final product was performed. These control parameters involved total solids in suspension, dissolved salts, chlorides, sulphates, COD, metals content. In the product, parameters like moisture, density and strength were controlled. The results showed that it is possible to replace the virgin long fibers pulp by primary sludge without impacts in final product characteristics and on the environment. This work ensures the elimination of significant waste amounts, which are nowadays sent to landfill, as well as reduces costs associated with the standard raw materials use in the fiber-cement industrial sector.« less

Resistive switching near electrode interfaces: Estimations by a current model

NASA Astrophysics Data System (ADS)

Schroeder, Herbert; Zurhelle, Alexander; Stemmer, Stefanie; Marchewka, Astrid; Waser, Rainer

2013-02-01

The growing resistive switching database is accompanied by many detailed mechanisms which often are pure hypotheses. Some of these suggested models can be verified by checking their predictions with the benchmarks of future memory cells. The valence change memory model assumes that the different resistances in ON and OFF states are made by changing the defect density profiles in a sheet near one working electrode during switching. The resulting different READ current densities in ON and OFF states were calculated by using an appropriate simulation model with variation of several important defect and material parameters of the metal/insulator (oxide)/metal thin film stack such as defect density and its profile change in density and thickness, height of the interface barrier, dielectric permittivity, applied voltage. The results were compared to the benchmarks and some memory windows of the varied parameters can be defined: The required ON state READ current density of 105 A/cm2 can only be achieved for barriers smaller than 0.7 eV and defect densities larger than 3 × 1020 cm-3. The required current ratio between ON and OFF states of at least 10 requests defect density reduction of approximately an order of magnitude in a sheet of several nanometers near the working electrode.

Do Facilitate, Don’t Demonstrate: Meaningful Engagement for Science Outreach

NASA Astrophysics Data System (ADS)

Gelderman, Richard

2017-01-01

We are encouraged to hand over the learning experience to the students who must do the learning. After the 1957 launch of Sputnik it seemed that learning by discovery would replace lectures and other forms of learning by rote. The innovative Physical Science Study Committee (PSSC), Chemical Education Materials Study (ChEMS), and Biological Sciences Curriculum Study (BSCS) provided teachers with hands-on, activity-based curriculum materials emphasizing problem solving, process skills, and creativity. Our current reforms, based on the Next Generation Science Standards, stress that learner-centered strategies need to become commonplace throughout the classrooms of our formal education system. In this presentation, we share tips on how to double check your style of interactions for science outreach, to ensure the audience is working with a facilitator rather than simply enjoying an expert’s entertaining demonstration.

Flat Plate Solar Array Project: Proceedings of the 20th Project Integration Meeting

NASA Technical Reports Server (NTRS)

Mcdonald, R. R.

1982-01-01

Progress made by the Flat-Plate Solar Array Project during the period November 1981 to April 1982 is reported. Project analysis and integration, technology research in silicon material, large-area silicon sheet and environmental isolation, cell and module formation, engineering sciences, and module performance and failure analysis are covered.

Malaysian Education Index (MEI): An Online Indexing and Repository System

ERIC Educational Resources Information Center

Kabilan, Muhammad Kamarul; Ismail, Hairul Nizam; Yaakub, Rohizani; Yusof, Najeemah Mohd; Idros, Sharifah Noraidah Syed; Umar, Irfan Naufal; Arshad, Muhammad Rafie Mohd.; Idrus, Rosnah; Rahman, Habsah Abdul

2010-01-01

This "Project Sheet" describes an on-going project that is being carried out by a group of educational researchers, computer science researchers and librarians from Universiti Sains Malaysia, Penang. The Malaysian Education Index (MEI) has two main functions--(1) Online Indexing System, and (2) Online Repository System. In this brief…

Independent Curriculum Enrichment Studies: Learning Packages for the Gifted. Table of Contents; Teachers' Sheets.

ERIC Educational Resources Information Center

Lafayette School District, CA.

The looseleaf binder contains a series of 268 learning packages for gifted and talented elementary school students, divided into 13 subject area sections, including art, chess, general, health, language arts, literature, mathematics, perception, reading, science, social studies, study skills, and thinking skills. Two additional sections include…

Soil Erosion. LC Science Tracer Bullet.

ERIC Educational Resources Information Center

Buydos, John F., Comp.

Soil erosion is the detachment and movement of topsoil or soil material from the upper part of the soil profile. It may occur in the form of rill, gully, sheet, or wind erosion. Agents of erosion may be water, wind, glacial ice, agricultural implements, machinery, and animals. Soil conservation measures require a thorough understanding of the…

76 FR 51060 - Guidelines for Ensuring and Maximizing the Quality, Objectivity, Utility, and Integrity of...

Federal Register 2010, 2011, 2012, 2013, 2014

2011-08-17

... Science Foundation specify that the agency ``may reject claims made in bad faith, or without justification... communication or representation of facts or data in any medium or form including textual, numerical... individuals or persons. Press releases, fact sheets, press conferences, or similar communications in any...

Fermilab | Science | Fermilab and the Higgs Boson

Science.gov Websites

Book Newsroom Newsroom News and features Press releases Photo gallery Fact sheets and brochures Media media Video of shutdown event Guest book Tevatron Impact June 11, 2012 About the symposium Symposium Security, Privacy, Legal Use of Cookies Quick Links Home Contact Phone Book Fermilab at Work For Industry

Fermilab | Tritium at Fermilab | Kress Creek Results

Science.gov Websites

Book Newsroom Newsroom News and features Press releases Photo gallery Fact sheets and brochures Media media Video of shutdown event Guest book Tevatron Impact June 11, 2012 About the symposium Symposium Science Security, Privacy, Legal Use of Cookies Quick Links Home Contact Phone Book Fermilab at Work For

Fermilab | Tevatron | Tevatron Symposium | Travel and Lodging

Science.gov Websites

Book Newsroom Newsroom News and features Press releases Photo gallery Fact sheets and brochures Media media Video of shutdown event Guest book Tevatron Impact June 11, 2012 About the symposium Symposium Office of Science Security, Privacy, Legal Use of Cookies Quick Links Home Contact Phone Book Fermilab at

Fermilab | Tritium at Fermilab | Indian Creek Aerial View

Science.gov Websites

Book Newsroom Newsroom News and features Press releases Photo gallery Fact sheets and brochures Media media Video of shutdown event Guest book Tevatron Impact June 11, 2012 About the symposium Symposium Office of Science Security, Privacy, Legal Use of Cookies Quick Links Home Contact Phone Book Fermilab at

Fermilab | Science | Particle Physics | Benefits of Particle Physics

Science.gov Websites

Book Newsroom Newsroom News and features Press releases Photo gallery Fact sheets and brochures Media media Video of shutdown event Guest book Tevatron Impact June 11, 2012 About the symposium Symposium Home Contact Phone Book Fermilab at Work For Industry Jobs Interact Facebook Twitter Instagram Google

Fermilab | Science at Fermilab | Computing | Mass Storage

Science.gov Websites

Book Newsroom Newsroom News and features Press releases Photo gallery Fact sheets and brochures Media media Video of shutdown event Guest book Tevatron Impact June 11, 2012 About the symposium Symposium Cookies Quick Links Home Contact Phone Book Fermilab at Work For Industry Jobs Interact Facebook Twitter

Biotechnology in Agriculture. Teacher Edition.

ERIC Educational Resources Information Center

Peterson, Dennis R.; Rehberger, Thomas

This curriculum guide is designed to help teachers to present a course that emphasizes the interrelationship of science and technology and the impact of this technology on agriculture and agricultural products. The guide contains six units that each contain some or all of the following basic components of a unit of instruction: objective sheet,…

OAS :: Press Releases

Science.gov Websites

General Assembly Governance H Human Development Human Rights I Indigenous Peoples Integral Development Scholarships School of Governance Science and Technology Social Development Summits of the Americas Sustainable : 1 2 Next » S-022/18 May 25, 2018 FACT SHEET: OAS School of Governance S-021/18 May 24, 2018 FACT

Fuels planning: science synthesis and integration; environmental consequences fact sheet 15: The Wildlife Habitat Response Model

Treesearch

David Pilliod

2005-01-01

The Wildlife Habitat Response Model (WHRM) is a Web-based computer tool for evaluating the potential effects of fuel-reduction projects on terrestrial wildlife habitats. It uses species-habitat associations in ponderosa pine (Pinus ponderosa), dry-type Douglas-fir (Pseudotsuga menziesii), lodgepole pine (Pinus...

Laser Transmitter Design and Performance for the Slope Imaging Multi-Polarization Photon-Counting Lidar (SIMPL) Instrument

NASA Technical Reports Server (NTRS)

Yu, Anthony W.; Harding, David J.; Dabney, Philip W.

2016-01-01

The Slope Imaging Multi-polarization Photon-counting Lidar (SIMPL) instrument is a polarimetric, two-color, multibeam push broom laser altimeter developed through the NASA Earth Science Technology Office Instrument Incubator Program and has been flown successfully on multiple airborne platforms since 2008. In this talk we will discuss the laser transmitter performance and present recent science data collected over the Greenland ice sheet and sea ice in support of the NASA Ice Cloud and land Elevation Satellite 2 (ICESat-2) mission to be launched in 2017.

[Primary antisera before and after the expiration date. Comparative immunohistochemical observations and analysis of data sheets and labels].

PubMed

Vigliani, R; Babache, N

2002-06-01

By means of positive and negative controls, the immunostaining properties of a series (B) of 78 primary antibodies (PAB) that had expired 7-77 months previously (mean, 26.3 months) were evaluated in comparison those of the same non expired (functioning) PAB. Qualitatively, no significative difference was observed in the specificity and sensitivity. Among all of the PAB (with the exception of one), no immunonegativity was observed. With special reference to immunohistochemical methods, dilution and retrieval procedures, as suggested on data sheets, were additionally considered. Moreover the residual availability of the reagents was checked. In fact 58 PAB were still available for further examination with probable prolongation of the duration of validity. Other observations are analytically reported as far as polyclonal, monoclonal, concentrated and predilluted expired PAB are concerned. In the same way, duration of available validity before the expiration date was examined for the expired PAB and for an additional series of 90 nonexpired PAB. Finally textual information (including intended use) reported on data sheets and labels has been scrutinized in detail. In conclusion, for the diagnostically applied immunohistochemistry on the basis of these findings and the recent American and European rules, the following propositions should be considered: (1) surveillance on methodological technical approach and diagnostic evaluation, with emphasis on accurate standardization and primary responsibility of the pathologist; (2) opportunity of a continuous feed-back between laboratories-customers and producers-traders, in order to render more uniform the information and establish more realistic parameters of utilization; and (3) possibility of cost reduction according to limited financial support from the health care administration.

eduSPIM: Light Sheet Microscopy in the Museum

PubMed Central

Schmid, Benjamin; Weber, Michael; Huisken, Jan

2016-01-01

Light Sheet Microscopy in the Museum Light sheet microscopy (or selective plane illumination microscopy) is an important imaging technique in the life sciences. At the same time, this technique is also ideally suited for community outreach projects, because it produces visually appealing, highly dynamic images of living organisms and its working principle can be understood with basic optics knowledge. Still, the underlying concepts are widely unknown to the non-scientific public. On the occasion of the UNESCO International Year of Light, a technical museum in Dresden, Germany, launched a special, interactive exhibition. We built a fully functional, educational selective plane illumination microscope (eduSPIM) to demonstrate how developments in microscopy promote discoveries in biology. Design Principles of an Educational Light Sheet Microscope To maximize educational impact, we radically reduced a standard light sheet microscope to its essential components without compromising functionality and incorporated stringent safety concepts beyond those needed in the lab. Our eduSPIM system features one illumination and one detection path and a sealed sample chamber. We image fixed zebrafish embryos with fluorescent vasculature, because the structure is meaningful to laymen and visualises the optical principles of light sheet microscopy. Via a simplified interface, visitors acquire fluorescence and transmission data simultaneously. The eduSPIM Design Is Tailored Easily to Fit Numerous Applications The universal concepts presented here may also apply to other scientific approaches that are communicated to laymen in interactive settings. The specific eduSPIM design is adapted easily for various outreach and teaching activities. eduSPIM may even prove useful for labs needing a simple SPIM. A detailed parts list and schematics to rebuild eduSPIM are provided. PMID:27560188

Uncertainty Quantification for Ice Sheet Science and Sea Level Projections

NASA Astrophysics Data System (ADS)

Boening, C.; Schlegel, N.; Limonadi, D.; Schodlok, M.; Seroussi, H. L.; Larour, E. Y.; Watkins, M. M.

2017-12-01

In order to better quantify uncertainties in global mean sea level rise projections and in particular upper bounds, we aim at systematically evaluating the contributions from ice sheets and potential for extreme sea level rise due to sudden ice mass loss. Here, we take advantage of established uncertainty quantification tools embedded within the Ice Sheet System Model (ISSM) as well as sensitivities to ice/ocean interactions using melt rates and melt potential derived from MITgcm/ECCO2. With the use of these tools, we conduct Monte-Carlo style sampling experiments on forward simulations of the Antarctic ice sheet, by varying internal parameters and boundary conditions of the system over both extreme and credible worst-case ranges. Uncertainty bounds for climate forcing are informed by CMIP5 ensemble precipitation and ice melt estimates for year 2100, and uncertainty bounds for ocean melt rates are derived from a suite of regional sensitivity experiments using MITgcm. Resulting statistics allow us to assess how regional uncertainty in various parameters affect model estimates of century-scale sea level rise projections. The results inform efforts to a) isolate the processes and inputs that are most responsible for determining ice sheet contribution to sea level; b) redefine uncertainty brackets for century-scale projections; and c) provide a prioritized list of measurements, along with quantitative information on spatial and temporal resolution, required for reducing uncertainty in future sea level rise projections. Results indicate that ice sheet mass loss is dependent on the spatial resolution of key boundary conditions - such as bedrock topography and melt rates at the ice-ocean interface. This work is performed at and supported by the California Institute of Technology's Jet Propulsion Laboratory. Supercomputing time is also supported through a contract with the National Aeronautics and Space Administration's Cryosphere program.

The ICESat-2 Mission: Concept, pre-launch activities, and opportunities

NASA Astrophysics Data System (ADS)

Markus, T.; Neumann, T.; Csatho, B. M.

2011-12-01

Ice sheet and sea level changes have been explicitly identified as a priority in the President's Climate Change Science Program, the Arctic Climate Impact Assessment, the 4th Assessment Report of the IPCC and other national and international policy documents. Following recommendations from the National Research Council for an ICESat follow-on mission, the ICESat-2 mission is now under development for launch in early 2016. The primary aims of the ICESat-2 mission are to continue measurements of sea-ice thickness change, and ice sheet elevation changes at scales from outlet glaciers to the entire ice sheet as established by ICESat. In contrast to ICESat, ICESat-2 will employ a 6-beam micro-pulse laser photon-counting approach. The current concept uses a high repetition rate (10 kHz; equivalent to 70 cm on the ground) low-power laser in conjunction with single-photon sensitive detectors to measure range using ~532nm (green) light. The concept will enable the generation of seasonal maps of ice sheet elevation of Greenland and Antarctica, monthly maps of sea ice thickness of the polar ocean, a dense map of land elevation (2 km track spacing at the equator after two years) enabling the determination of canopy height, as well as ocean heights. While the mission has been optimized for cryospheric science and vast amount of high precision elevation measurements taken over land and over the ocean as well as of the atmosphere will provide scientists with a wealth of opportunities to explore the utility of ICESat-2. Those will range from the retrieval of cloud properties, to river stages, to snow cover, to land use changes and more. The presentation will review the measurement concept and physical principles of ICESat-2, current and planned activities to assess instrument performance and develop geophysical algorithms, as well as potential opportunities outside the main objectives of ICESat-2.

The ICESat-2 Mission: Concept, Pre-Launch Activities, and Opportunities

NASA Technical Reports Server (NTRS)

Markus, Thorsten; Neumann, Tom; Csatho, Beata M.

2011-01-01

Ice sheet and sea level changes have been explicitly identified as a priority in the President's Climate Change Science Program, the Arctic Climate Impact Assessment, the 4th Assessment Report of the IPee and other national and international policy documents. Following recommendations from the National Research Council for an ICESat follow-on mission, the ICESat-2 mission is now under development for launch in early 2016. The primary aims of the ICESat-2 mission are to continue measurements of sea-ice thickness change, and ice sheet elevation changes at scales from outlet glaciers to the entire ice sheet as established by ICES at. In contrast to ICES at, ICESat-2 will employ a 6-beam micro-pulse laser photon-counting approach. The current concept uses a high repetition rate (10 kHz; equivalent to 70 cm on the ground) low-power laser in conjunction with single-photon sensitive detectors to measure range using approximately 532nm (green) light. The concept will enable the generation of seasonal maps of ice sheet elevation of Greenland and Antarctica, monthly maps of sea ice thickness of the polar ocean, a dense map of land elevation (2 km track spacing at the equator after two years) enabling the determination of canopy height, as well as ocean heights. While the mission has been optimized for cryospheric science and vast amount of high precision elevation measurements taken over land and over the ocean as well as of the atmosphere will provide scientists with a wealth of opportunities to explore the utility of ICESat-2. Those will range from the retrieval of cloud properties, to river stages, to snow cover, to land use changes and more. The presentation will review the measurement concept and physical principles of ICESat-2, current and planned activities to assess instrument performance and develop geophysical algorithms, as well as potential opportunities outside the main objectives of ICESat-2.

A new scanning system for alpha decay events as calibration sources for range-energy relation in nuclear emulsion

NASA Astrophysics Data System (ADS)

Yoshida, J.; Kinbara, S.; Mishina, A.; Nakazawa, K.; Soe, M. K.; Theint, A. M. M.; Tint, K. T.

2017-03-01

A new scanning system named "Vertex picker" has been developed to rapid collect alpha decay events, which are calibration sources for the range-energy relation in nuclear emulsion. A computer-controlled optical microscope scans emulsion layers exhaustively, and a high-speed and high-resolution camera takes their micrographs. A dedicated image processing picks out vertex-like shapes. Practical operations of alpha decay search were demonstrated by emulsion sheets of the KEK-PS E373 experiment. Alpha decays of nearly 28 events were detected in eye-check work on a PC monitor per hour. This yield is nearly 20 times more effective than that by the conventional eye-scan method. The speed and quality is acceptable for the coming new experiment, J-PARC E07.

SCUT: clinical data organization for physicians using pen computers.

PubMed Central

Wormuth, D. W.

1992-01-01

The role of computers in assisting physicians with patient care is rapidly advancing. One of the significant obstacles to efficient use of computers in patient care has been the unavailability of reasonably configured portable computers. Lightweight portable computers are becoming more attractive as physician data-management devices, but still pose a significant problem with bedside use. The advent of computers designed to accept input from a pen and having no keyboard present a usable computer platform to enable physicians to perform clinical computing at the bedside. This paper describes a prototype system to maintain an electronic "scut" sheet. SCUT makes use of pen-input and background rule checking to enhance patient care. GO Corporation's PenPoint Operating System is used to implement the SCUT project. PMID:1483012

Weichselian periglacial environments in the northeastern extremety of Europe

NASA Astrophysics Data System (ADS)

Astakhov, V.; Svendsen, J. I.

2009-04-01

Traditional reconstructions of Weichselian environments saw the Peri-Uralian plains as arena either of Late Weichselian glaciation or of predominant aqueous activity which is incompatible with the latest finds of Upper Palaeolithic human activity in the Peri-Uralian Arctic and Subarctic. Now it is proven that the last ice sheet disintegrated before 50 ka BP (Svendsen et al., 2004) and early humans arrived in the Arctic as early as ca 40 ka BP (Svendsen and Pavlov, 2003). Therefore, to understand the natural setting of early human invasions into northeastern European Russia a re-evaluation of periglacial evidences is necessary. Spatially diverse data obtained from sedimentological studies, photogeological interpretation and dating results from various sedimentary formations appear instrumental for assessing the palaeo-environment. Weichselian periglacial events are dated back to ca 80-90 luminescence ka BP when the huge ice-dammed water body called Lake Komi inundated all lowlands below 100 m isohypse in front of an arctic ice sheet (Mangerud et al., 2004). Some 70 ka BP the lake was replaced by a fluvial network that drained the stagnant ice fields recognized as the "Third Terrace" above the present floodplain. Judging from sediment sections in the Yamal Peninsula, wind-blown sand covers started to develop already during MIS 4. A Mid-Weichselian climatic amelioration around 50-30 ka BP can be traced by the "Second Terrace" and from the many gullies with finds of bones of mammals. Pollen record and relict permafrost features indicate that treeless, permafrozen landscapes predominated in the present zone of boreal forest. Nevertheless, a general humidification at around this time is evident from fluvial gravels and diamictic solifluction sheets. Quite different features emerged in the northeast of the Russian Plain during MIS 2. Fluvial sediments are almost absent except for some thin (1-2 m) sand and gravel accumulations caused by local low-energy streams. The discontinuous sedimentary mantle from this period consists largely of various aeolian sands and loess-like silts (Astakhov et al., 1999; Mangerud et al., 1999) with rare wisps of soliflucted diamicts. Dune sands, up to 20 m thick, occur mostly along the Barents Sea coastline, whereas loess-like silts gravitate to the Uralian piedmonts. Most widespread upon all arctic landscape elements are thin (1-3 m) sheets of laminated cover-sand similar to niveo-aeolian deposits described in the Netherlands and elsewhere. Typically the aeolian sands are accompanied by conical residual hillocks with armored deflation summits. Finds of organic remains in surficial sediments younger than 27 and older than 14 radiocarbon ka BP are rare. The aeolian sands and silts have yielded a number of luminescence dates in the range of 33 to 13 calendar ka BP (Mangerud et al., 2002). Macrofauna and a sparse shrub vegetation reappeared after 14 radiocarbon ka BP (Mangerud et al.1999). Another indication of a cold and continental climate is remnants of fossil glacier ice which have survived within arctic diamict sheets for at least 50 ka (Astakhov and Svendsen, 2002). We conclude that most of the Weichselian time the northeastern European Russia was a treeless, landscape with permafrost. An especially dry, frosty and generally inhospitable environment appeared during MIS 2 when the Barents Sea Ice Sheet produced strong katabatic winds across the polar desert. The only period suitable for human invasion from the south was during the MIS 3 when a higher precipitation rate could support meager arboreal vegetation along river valleys. A minor climatic amelioration after 15 radiocarbon ka BP led to formation of the "First Terrace" along the rivers and numerous thermokarst lakes surrounded by shrub land. Only sparse mammal bones, but no traces of human activity are known from the final Pleistocene until the Neolithic times. References - Astakhov V.I., Svendsen J.I., Mangerud J. et al. 1999: Marginal formations of the last Kara and Barents ice sheets in northern European Russia. Boreas 28(1), 23-45. - Astakhov V.I. and Svendsen J.I. 2002: Age of remnants of a Pleistocene glacier in Bol`shezemel`skaya Tundra. Doklady Earth Sciences 384(4), 468-472. - Mangerud, J., Svendsen, J.I. and Astakhov, V.I. 1999: Age and extent of the Barents and Kara Sea ice sheets in Northern Russia. Boreas 28 (1), 46-80. - Mangerud, J., Astakhov, V. and Svendsen, J-I. 2002: The extent of the Barents-Kara Ice Sheet during the Last Glacial Maximum. Quaternary Science Reviews 21 (1-3), 111-119. - Mangerud, J., Jakobsson, M., Alexanderson et al. 2004: Ice-dammed lakes and rerouting of the drainage of northern Eurasia during the Last Glaciation. Quaternary Science Reviews 23(11-13), 1313-1332. - Svendsen, J. I., Alexanderson, H., Astakhov V. et al. 2004: Late Quaternary ice sheet history of Northern Eurasia. Quaternary Science Reviews 23(11-13), 1229-1271. - Svendsen, J.I. and Pavlov, P. 2003: Mamontovaya Kuya: an enigmatic, nearly 40000 years old Paleolithic site in the Russian Arctic. Trabalhos de Arqueologia 33. Lisboa, Instituto Português de Arqueologia, 109-120.

More Than the Rules of Precedence

ERIC Educational Resources Information Center

Liang, Yawei

2005-01-01

In a fundamental computer-programming course, such as CSE101, questions about how to evaluate an arithmetic expression are frequently used to check if our students know the rules of precedence. The author uses two of our final examination questions to show that more knowledge of computer science is needed to answer them correctly. Furthermore,…

Misconceptions in Optics: Their Persistence at University Level.

ERIC Educational Resources Information Center

Gil Llinas, J.; Suero Lopez, M. I.; Perez Rodriguez, A. L.; Solano Macias, F.

2003-01-01

Presents a study on misconceptions in optics with the objective of checking their persistence over time in spite of the continued academic instruction of students. Involves (n=4000) students of all levels of the Spanish educational system as well as with those at a Spanish university with degrees in medicine, chemical sciences, technical…

How Gender Differences Shape Student Success in Honors

ERIC Educational Resources Information Center

Dinan, Susan E.

2016-01-01

In 2014, Jonathan Zimmerman published an op-ed in the "Christian Science Monitor" in which he wrote, "The last time I checked, [men] held most of the important positions of power and influence in American society. And yet, college admissions offices lower the standard for young men--effectively raising it for women--simply to make…