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1

Correlation between Marks Obtained By Students in Assignments and Final Examination of Master of Education Conducted by Allama Iqbal Open University  

ERIC Educational Resources Information Center

The main objective of the research was to find out the correlation between the marks obtained by the students of Allama Iqbal Open University in assignments and final examination of M.A (Education) M.Ed in Autumn 2006. For this purpose, the result gazette of M.A (Education) M.Ed was obtained from the regional campus of Allama Iqbal Open

Aslam, Muhammed; Ahmed, Aijaz; Malik, Ashraf, Muhammad

2007-01-01

2

Key Factors for Determining Student Satisfaction in Distance Learning Courses: A Study of Allama Iqbal Open University (AIOU) Islamabad, Pakistan  

ERIC Educational Resources Information Center

In this paper, the primary objective of the research team was to find out the relationship between student satisfaction and the following variables of the distance learning environment: instructors' performance, course evaluation and student-instructor interaction. The sample consisted of 245 students of Allama Iqbal Open University of Pakistan.…

Ali, Afzaal; Ramay, Muhammad I.; Shahzad, Mudasar

2011-01-01

3

Use of Libraries in Open and Distance Learning System: Barriers to the Use of AIOU Libraries by Tutors and Students  

ERIC Educational Resources Information Center

This study explores the library needs of students and tutors of Allama Iqbal Open University (AIOU), utilization level of the library facilities and resources, the problems in the use of library, and suggestions for improvement of library facilities for students and tutors. Data collected from 4080 students and 526 tutors belonging to 15 different…

Bhatti, Abdul Jabbar; Jumani, Nabi Bux

2012-01-01

4

Information Seeking Behaviour of AIOU Administrators  

ERIC Educational Resources Information Center

The main purpose of this research study is to investigate the information-seeking behavior of Allama Iqbal Open University (AIOU) administrators in Pakistan. Information is obtained by using a wide variety of informal and formal sources, human sources, Internet as well as print media. The present study found that AIOU administrators are more…

Mahmood, Malik Tariq

2005-01-01

5

Development of Reflective Thinking through Distance Teacher Education Programs at AIOU Pakistan  

ERIC Educational Resources Information Center

The current study aims to investigate the possibilities of developing reflective thinking among learners through distance education programs. The case of Allama Iqbal Open University (AIOU) Islamabad, Pakistan is examined to achieve this task. The study is based on Mezirow's theory of reflective thinking, which divides thinking in four…

Buzdar, Muhammad Ayub; Ali, Akhtar

2013-01-01

6

Pakistan [Population education in countries of the region].  

PubMed

The scope of formal population education in Pakistan covers the entire academic system, beginning from the primary level to the university and professional colleges. The government initiated action in 1980 to integrate population education in the formal and nonformal education sectors. General as well as specific behavioral objectives for population education were developed by the National Committee on Population Education. These objectives were further broken down for primary, middle, and lower and higher secondary school levels. The National Committee on Population Education prepared a curriculum for the training of primary, middle, and lower secondary school teachers which was used in training the master trainers. Textbooks in Pakistan were written in 1975 following the concepts and guidelines provided in the new curricula. Curriculum development specialists prepared model lessons on the integration of population education with social studies, Pakistan studies, Urdu, health and physical education, and nursing and general science for the guidance of textbook writers and teachers. The Allama Iqbal Open University has developed a 24-unit course to orientate primary school teachers in the philosophy and content of new curricula provided for in the new education policy of Pakistan. The Population Planning Division of Pakistan and the Family Planning Association of Pakistan periodically develop materials which serve as supplementary readers; an orientation program for teachers began on a limited scale following the inception of population education in Pakistan. Some research and evaluation projects have been undertaken periodically to study the effectiveness of some of the family planning programs. To ensure systematic and comprehensive coverage of population education through the existing formal and nonformal education programs the government is planning to undertake in collaboration with the UN Fund for Population Activities (UNFPA) and other bilateral and multilateral funding agencies. The broad strategies for implementation cover the following areas: identification of the target group; instructional strategies; and federal and provincial implementation strategies. Problems have included perception as another name for family planning, lack of systematic and consistent planning for integrating population education, and a lack of funds. PMID:12265645

1982-06-01

7

Open Content in Open Context  

ERIC Educational Resources Information Center

This article presents the challenges and rewards of sharing research content through a discussion of Open Context, a new open access data publication system for field sciences and museum collections. Open Context is the first data repository of its kind, allowing self-publication of research data, community commentary through tagging, and clear…

Kansa, Sarah Whitcher; Kansa, Eric C.

2007-01-01

8

Open Access  

ERIC Educational Resources Information Center

The Internet lets us share perfect copies of our work with a worldwide audience at virtually no cost. We take advantage of this revolutionary opportunity when we make our work "open access": digital, online, free of charge, and free of most copyright and licensing restrictions. Open access is made possible by the Internet and copyright-holder…

Suber, Peter

2012-01-01

9

Open City  

NSDL National Science Digital Library

Are you interested in improving civic culture and knowledge with apps? If so, you will be delighted to learn about the Open City site. The Open City folks are a group of programmers, citizen activists, and policy types that create apps with open data in order "to improve transparency and understanding of our government." Chicagoans can stop by the Merchandise Mart to meet up and work with Open City in person. Everyone else can check out the Projects page to view apps like "Chicago Councilmatic," "How's Business?" and "Crime in Chicago." Each of these apps takes open source data from the city of Chicago and other organizations to create tools designed to help decision makers, journalists, and scholars with their various projects. The site also contains information about the people behind the organization and press releases about their work.

10

Drain opener poisoning  

MedlinePLUS

Drain opening agents ... Drain cleaners or openers Note: This list may not include all sources of drain opening agents. ... Lungs and airways Breathing difficulty (from breathing in drain opening agent) Throat swelling (may also cause breathing ...

11

Open Systems (Architecture) Engineering.  

National Technical Information Service (NTIS)

Overview of this document: discussion of key open system concepts and definitions, conformance and compatibility management, open system engineering approach, open system policy, today's transition environment and open system transition process.

N. W. Kowalski

1996-01-01

12

OpenER, a Dutch Initiative in Open Educational Resources  

ERIC Educational Resources Information Center

Over the period 2006-2008, the Dutch Open Universiteit Nederland conducted an experiment in which Open Educational Resources (OER) were offered in an effort to bridge the gap between informal and formal learning and to establish a new style of entry portal to higher education with no barriers at all. OpenER received considerable attention both in…

Schuwer, Robert; Mulder, Fred

2009-01-01

13

Opening remarks  

SciTech Connect

Included in this paper are the opening remarks of S.G. Hildebrand, from Environmental Science Division, ORNL, to a conference on water resources and water resource issues. Wetlands are the focus of this talk, with an emphasis on conservation and land use to conserve wetland functions and values.

Hildebrand, S.G.

1994-09-01

14

The Opening \\  

Microsoft Academic Search

Previous research indicated that task conflict benefits knowledge sharing within organization, whereas relationship conflict damages it. However, little is known about the underlying psychological process by which task and relationship conflicts have distinct effects on knowledge sharing. In this study, we aim to open the \\

Xi Zhang; Zhenjiao Chen; Chuanjie Guo

2009-01-01

15

OPEN Study  

Cancer.gov

Over the course of the study, OPEN participants completed 2 Food Frequency Questionnaires (FFQ), 2 24-recall interviews, and filled out several other health-related questionnaires. They were dosed with doubly labeled water (a biomarker used for measuring energy expenditure), provided several spot urine samples to complete the doubly labeled water assessment, completed two 24-hour urine collections and had their height and weight measured.

16

Open University  

ScienceCinema

Michel Pentz est née en Afrique du Sud et venu au Cern en 1957 comme physicien et président de l'associaion du personnel. Il est également fondateur du mouvement Antiapartheid de Genève et a participé à la fondation de l'Open University en Grande-Bretagne. Il nous parle des contextes pédagogiques, culturels et nationaux dans lesquels la méthode peut s'appliquer.

None

2011-04-25

17

Open Studio  

NSDL National Science Digital Library

The Open Studio Project was conceived by Los Angeles artist Mark Bradford, and is the inaugural effort of the Getty Artists Program, an extension of the Museum's education department. The Open Studio Project makes it possible for more schools to have an artist-in-residence, virtually. Any K-12 art classroom with an Internet connection can bring in art-making activities created by a roster of international artists. For example, students can work with Australian photographer Jon Cattapan to create a "Personal diorama", or explore color with painter Amy Sillman, who suggests going on a color tour of your town. Mark Bradford's three-part assignment on "recreating the familiar" is designed to "help you to see more clearly how you feel and relate to the immediate world you live in." Students work with text, rearranging the lyrics of a familiar song that they get to choose, draw a map of the school lunchroom, and create self-portraits with their eyes closed.

Bradsford, Mark

18

Lumbar (Open) Microscopic Discectomy  

MedlinePLUS

Open Discectomy Open discectomy is the most common surgical treatment for ruptured or herniated discs of the lumbar spine. When the outer wall ... area and into one or both legs. Open discectomy uses surgery to remove part of the damaged ...

19

75 FR 38835 - Solicitation of Nominations for the United States Department of Labor's Iqbal Masih Award for the...  

Federal Register 2010, 2011, 2012, 2013

...age of 13 in his native Pakistan. In view of inspiring and motivating those who are working to eliminate the worst forms of child...without further action as having been applied and affixed by an employee of the U.S. Postal Service on the date of mailing....

2010-07-06

20

76 FR 48902 - Solicitation of Nominations for the United States Department of Labor's Iqbal Masih Award for the...  

Federal Register 2010, 2011, 2012, 2013

...age of 13 in his native Pakistan. In view of inspiring and motivating those who are working to eliminate the worst forms of child...without further action as having been applied and affixed by an employee of the U.S. Postal Service on the date of mailing....

2011-08-09

21

Open Source, Openness, and Higher Education  

ERIC Educational Resources Information Center

In this article David Wiley provides an overview of how the general expansion of open source software has affected the world of education in particular. In doing so, Wiley not only addresses the development of open source software applications for teachers and administrators, he also discusses how the fundamental philosophy of the open source…

Wiley, David

2006-01-01

22

Open for Business  

ERIC Educational Resources Information Center

People know about the Sakai Project (open source course management system); they may even know about Kuali (open source financials). So, what is the next wave in open source software? This article discusses business intelligence (BI) systems. Though open source BI may still be only a rumor in most campus IT departments, some brave early adopters…

Voyles, Bennett

2007-01-01

23

Openness, Web 2.0 Technology, and Open Science  

ERIC Educational Resources Information Center

Open science is a term that is being used in the literature to designate a form of science based on open source models or that utilizes principles of open access, open archiving and open publishing to promote scientific communication. Open science increasingly also refers to open governance and more democratized engagement and control of science…

Peters, Michael A.

2010-01-01

24

Open Office Tutorial Page  

NSDL National Science Digital Library

Links to tutorials using Open Office. Using Open Office Tutorials - You may want to use a pair of headphones so you can listen as well as watch. Open Office Tutorial - Formating your Page - format margins, indents, double spacing, and work cited on its own page. Open Office Tutorial - Works Cited Page - shows how to do the hanging indent Open Office Tutorial - Headers, page numbering, and saving - shows how to insert ...

Schultz, Ms.

2013-09-11

25

Looking south at the open hearth steelmaking plant; open hearth ...  

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

Looking south at the open hearth steelmaking plant; open hearth stockhouse in foreground and open hearth furnace building in background - U.S. Steel Edgar Thomson Works, Open Hearth Steelmaking Plant, Along Monongahela River, Braddock, Allegheny County, PA

26

Open Space Plan.  

National Technical Information Service (NTIS)

The report defines urban open space, both publicly and privately owned. It sets forth objectives, policies and programs for the acquisition, preservation and use of open space for maximum benefit. It also contains an extensive standards and criteria secti...

1973-01-01

27

Openness in Adoption  

MedlinePLUS

... Openness in Adoption: Building Relationships Between Adoptive and Birth Families Email Order (Free) Print (PDF 357 KB) Share Rate This ... Openness in adoption: Building relationships between adoptive and birth families. Washington, DC: U.S. ... Share A service ...

28

The Open Future: Openness as Catalyst for an Educational Reformation  

ERIC Educational Resources Information Center

The word "open" is receiving a lot of attention in education circles. For over a decade, "open" has been used as an adjective to modify a variety of nouns that describe teaching and learning materials. For example, open content, open educational resources, open courseware, and open textbooks are all part of the current higher education discourse.…

Wiley, David

2010-01-01

29

Open value creation  

Microsoft Academic Search

Open Value Creation extends Chesbrough's R&D concept of Open Innovation to all value creating processes within organizations. It encompasses all forms of organizational value creation that are enabled or enhanced by the inclusion of external knowledge. I am specifically interested in how organizations can benefit from end-consumer knowledge by opening information resources. Accordingly, the framing research question of the thesis

2010-01-01

30

Children of Open Adoption.  

ERIC Educational Resources Information Center

Since the early 1980s, open adoption has been rapidly gaining ground, replacing the sealed records and the secrecy and shame that were attached to the subject. This book considers the long-term effects of open adoption on the children involved and presents case histories and letters from adoptees. Chapter 1, "Open Adoption: Definition, Evolution,…

Silber, Kathleen; Dorner, Patricia Martinez

31

In Brief: Open government  

NASA Astrophysics Data System (ADS)

U.S. President Barack Obama's Memorandum on Transparency and Open Government requires federal agencies to take steps toward increased transparency, public participation, and collaboration. Agencies are accepting suggestions until 19 March 2010. For more information, visit http://www.whitehouse.gov/open and http://www.usa.gov/webcontent/open/tool_poc.shtml.

Showstack, Randy

2010-03-01

32

Values in Open Education  

ERIC Educational Resources Information Center

The article presents some principles which constitute a rationale for open education and that clarify some of the procedures in the open setting that can best bring about effective learning. Respect for individuality, cooperation, openness in diagnosis, pupils' active firsthand explorations, quality of thought, and teacher intervention are…

Tamburrini, Joan

1976-01-01

33

OpenLDAP Project  

NSDL National Science Digital Library

This site, provided by the nonprofit OpenLDAP Foundation and its corporate sponsor, Net Boolean, Inc., hosts information and source code for OpenLDAP, an "open source" implementation of the Lightweight Directory Access Protocol (LDAP). The OpenLDAP project aims to provide a commercial-grade, full-featured suite of LDAP applications and development tools using the open source model. That is, the project relies on volunteers to provide code and documentation. The site contains the downloadable source code for version 1.0.1 of OpenLDAP, which is based on code from the University of Michigan and runs on a number of Unix platforms; information on how to participate in the project; links to general LDAP information; and instructions on how to subscribe to various mailing lists about the project.

34

Open Source Physics  

NSDL National Science Digital Library

The Open Source Physics Project creates and distributes curricular material for physics education and computational physics. Compiled programs, curricular materials, a modeling environment, Java code libraries, and data analysis tools are included. The learning resources include interactive explorations, conceptual and analytic exercises, and tutorials. Open Source Physics projects include curriculum for computational physics and statistical physics, video analysis software, and upper division physics courses. Open Source Physics is supported by the National Science Foundation.

2006-03-03

35

OpenVera  

NSDL National Science Digital Library

OpenVera is a hardware verification language intended to make modeling and testing of complex systems more efficient. It is part of an open source initiative, headed by the integrated circuit design company Synopsys, that will benefit many industries where time to market is a critical factor. This is the home page for OpenVera, and it contains a wealth of information about the standard and its development. Many technical papers are offered, but a brief, free registration is required to access the specification and language reference manual. The latest version of OpenVera was released in April 2002.

2001-01-01

36

Open Babel: An open chemical toolbox  

PubMed Central

Background A frequent problem in computational modeling is the interconversion of chemical structures between different formats. While standard interchange formats exist (for example, Chemical Markup Language) and de facto standards have arisen (for example, SMILES format), the need to interconvert formats is a continuing problem due to the multitude of different application areas for chemistry data, differences in the data stored by different formats (0D versus 3D, for example), and competition between software along with a lack of vendor-neutral formats. Results We discuss, for the first time, Open Babel, an open-source chemical toolbox that speaks the many languages of chemical data. Open Babel version 2.3 interconverts over 110 formats. The need to represent such a wide variety of chemical and molecular data requires a library that implements a wide range of cheminformatics algorithms, from partial charge assignment and aromaticity detection, to bond order perception and canonicalization. We detail the implementation of Open Babel, describe key advances in the 2.3 release, and outline a variety of uses both in terms of software products and scientific research, including applications far beyond simple format interconversion. Conclusions Open Babel presents a solution to the proliferation of multiple chemical file formats. In addition, it provides a variety of useful utilities from conformer searching and 2D depiction, to filtering, batch conversion, and substructure and similarity searching. For developers, it can be used as a programming library to handle chemical data in areas such as organic chemistry, drug design, materials science, and computational chemistry. It is freely available under an open-source license from http://openbabel.org.

2011-01-01

37

Open Government Plan.  

National Technical Information Service (NTIS)

The Department of State is pleased to issue this Open Government Plan. The plan reflects the personal commitment of the Secretary of State as well as that of the entire Department to the principles and practices of Open Government. The plan focuses on the...

2010-01-01

38

Open Rotor Aeroacoustic Modelling  

NASA Technical Reports Server (NTRS)

Owing to their inherent fuel efficiency, there is renewed interest in developing open rotor propulsion systems that are both efficient and quiet. The major contributor to the overall noise of an open rotor system is the propulsor noise, which is produced as a result of the interaction of the airstream with the counter-rotating blades. As such, robust aeroacoustic prediction methods are an essential ingredient in any approach to designing low-noise open rotor systems. To that end, an effort has been underway at NASA to assess current open rotor noise prediction tools and develop new capabilities. Under this effort, high-fidelity aerodynamic simulations of a benchmark open rotor blade set were carried out and used to make noise predictions via existing NASA open rotor noise prediction codes. The results have been compared with the aerodynamic and acoustic data that were acquired for this benchmark open rotor blade set. The emphasis of this paper is on providing a summary of recent results from a NASA Glenn effort to validate an in-house open noise prediction code called LINPROP which is based on a high-blade-count asymptotic approximation to the Ffowcs-Williams Hawkings Equation. The results suggest that while predicting the absolute levels may be difficult, the noise trends are reasonably well predicted by this approach.

Envia, Edmane

2012-01-01

39

The Open Systems University.  

ERIC Educational Resources Information Center

The purpose of this paper is focused toward a systems understanding of the contemporary university, the American University being the data base. A general systems conceptualization called the open systems university is presented. Comprehensive and generic in character, it is hoped that the theory of the open university will be viable enough to…

Counelis, James Steve

40

Demystifying Open Access  

SciTech Connect

The tenets of Open Access are to grant anyone, anywhere and anytime free access to the results of scientific research. HEP spearheaded the Open Access dissemination of scientific results with the mass mailing of preprints in the pre-WWW era and with the launch of the arXiv preprint system at the dawn of the '90s. The HEP community is now ready for a further push to Open Access while retaining all the advantages of the peer-review system and, at the same time, bring the spiralling cost of journal subscriptions under control. I will present a possible plan for the conversion to Open Access of HEP peer-reviewed journals, through a consortium of HEP funding agencies, laboratories and libraries: SCOAP3 (Sponsoring Consortium for Open Access Publishing in Particle Physics). SCOAP3 will engage with scientific publishers towards building a sustainable model for Open Access publishing, which is as transparent as possible for HEP authors. The current system in which journals income comes from subscription fees is replaced with a scheme where SCOAP3 compensates publishers for the costs incurred to organise the peer-review service and give Open Access to the final version of articles. SCOAP3 will be funded by all countries active in HEP under a "fair share" scenario, according to their production of HEP articles. In this talk I will present a short overview of the history of Open Access in HEP, the details of the SCOAP3 model and the outlook for its implementation.

Salvatore Mele

2007-05-14

41

Opening a New Door  

ERIC Educational Resources Information Center

A growing number of K-12 districts are taking the open source plunge, both to cope with tight budgets and to escape proprietary vendor lock-in and expensive upgrade cycles. With the potential for cost savings and a growing number of educational applications, open source software is proving to be an effective alternative for schools willing to make…

Waters, John K.

2007-01-01

42

Open Bioinformatics Foundation  

NSDL National Science Digital Library

Researchers can share their open source code software on websites such as this one from the Open Bioinformatics Foundation. Here, visitors can find information about the Foundation's projects (including BioJava, BioPerl, and BioRuby), board of directors, applications for membership, and bioinformatics newsletters.

2007-12-28

43

Open Rotor Aeroacoustic Modeling  

NASA Technical Reports Server (NTRS)

Owing to their inherent fuel efficiency, there is renewed interest in developing open rotor propulsion systems that are both efficient and quiet. The major contributor to the overall noise of an open rotor system is the propulsor noise, which is produced as a result of the interaction of the airstream with the counter-rotating blades. As such, robust aeroacoustic prediction methods are an essential ingredient in any approach to designing low-noise open rotor systems. To that end, an effort has been underway at NASA to assess current open rotor noise prediction tools and develop new capabilities. Under this effort, high-fidelity aerodynamic simulations of a benchmark open rotor blade set were carried out and used to make noise predictions via existing NASA open rotor noise prediction codes. The results have been compared with the aerodynamic and acoustic data that were acquired for this benchmark open rotor blade set. The emphasis of this paper is on providing a summary of recent results from a NASA Glenn effort to validate an in-house open noise prediction code called LINPROP which is based on a high-blade-count asymptotic approximation to the Ffowcs-Williams Hawkings Equation. The results suggest that while predicting the absolute levels may be difficult, the noise trends are reasonably well predicted by this approach.

Envia, Edmane

2012-01-01

44

Opening up Education: The Collective Advancement of Education through Open Technology, Open Content, and Open Knowledge  

ERIC Educational Resources Information Center

Given the abundance of open education initiatives that aim to make educational assets freely available online, the time seems ripe to explore the potential of open education to transform the economics and ecology of education. Despite the diversity of tools and resources already available--from well-packaged course materials to simple games, for…

Iiyoshi, Toru, Ed.; Kumar, M. S. Vijay, Ed.

2008-01-01

45

Demystifying Open Access  

ScienceCinema

The tenets of Open Access are to grant anyone, anywhere and anytime free access to the results of scientific research. HEP spearheaded the Open Access dissemination of scientific results with the mass mailing of preprints in the pre-WWW era and with the launch of the arXiv preprint system at the dawn of the '90s. The HEP community is now ready for a further push to Open Access while retaining all the advantages of the peer-review system and, at the same time, bring the spiralling cost of journal subscriptions under control. I will present a possible plan for the conversion to Open Access of HEP peer-reviewed journals, through a consortium of HEP funding agencies, laboratories and libraries: SCOAP3 (Sponsoring Consortium for Open Access Publishing in Particle Physics). SCOAP3 will engage with scientific publishers towards building a sustainable model for Open Access publishing, which is as transparent as possible for HEP authors. The current system in which journals income comes from subscription fees is replaced with a scheme where SCOAP3 compensates publishers for the costs incurred to organise the peer-review service and give Open Access to the final version of articles. SCOAP3 will be funded by all countries active in HEP under a "fair share" scenario, according to their production of HEP articles. In this talk I will present a short overview of the history of Open Access in HEP, the details of the SCOAP3 model and the outlook for its implementation.

46

Demystifying Open Access  

ScienceCinema

The tenets of Open Access are to grant anyone, anywhere and anytime free access to the results of scientific research. HEP spearheaded the Open Access dissemination of scientific results with the mass mailing of preprints in the pre-WWW era and with the launch of the arXiv preprint system at the dawn of the '90s. The HEP community is now ready for a further push to Open Access while retaining all the advantages of the peer-review system and, at the same time, bring the spiralling cost of journal subscriptions under control. I will present a possible plan for the conversion to Open Access of HEP peer-reviewed journals, through a consortium of HEP funding agencies, laboratories and libraries: SCOAP3 (Sponsoring Consortium for Open Access Publishing in Particle Physics). SCOAP3 will engage with scientific publishers towards building a sustainable model for Open Access publishing, which is as transparent as possible for HEP authors. The current system in which journals income comes from subscription fees is replaced with a scheme where SCOAP3 compensates publishers for the costs incurred to organise the peer-review service and give Open Access to the final version of articles. SCOAP3 will be funded by all countries active in HEP under a 'fair share' scenario, according to their production of HEP articles. In this talk I will present a short overview of the history of Open Access in HEP, the details of the SCOAP3 model and the outlook for its implementation.

47

Creating Open Source Conversation  

ERIC Educational Resources Information Center

Darien Library, where the author serves as head of knowledge and learning services, launched a new website on September 1, 2008. The website is built with Drupal, an open source content management system (CMS). In this article, the author describes how she and her colleagues overhauled the library's website to provide an open source content…

Sheehan, Kate

2009-01-01

48

Triggered plasma opening switch  

DOEpatents

A triggerable opening switch for a very high voltage and current pulse includes a transmission line extending from a source to a load and having an intermediate switch section including a plasma for conducting electrons between transmission line conductors and a magnetic field for breaking the plasma conduction path and magnetically insulating the electrons when it is desired to open the switch.

Mendel, Clifford W. (Albuquerque, NM)

1988-01-01

49

Business as Usual: Immigration and the National Security Exception  

Microsoft Academic Search

Javaid Iqbal is a native and citizen of Pakistan and a Muslim. After moving to the United States, Iqbal worked as a cable television installer on Long Island. Iqbal was one among hundreds of men apprehended and detained by the United States Department of Justice in the weeks that followed the September 11, 2001 attacks. Iqbal was held in a

Shoba S Wadhia

2010-01-01

50

Stability of open pathways  

PubMed Central

We consider the steady state of an open biochemical pathway, with controlled flow. Previously we have shown that the steady state of open enzyme catalysed reactions may be unstable, which discourages the application of the quasi-steady-state approximation (QSSA) (IEE Proc. Syst. Biol. 153 (2006) 187). Here we examine basic open biochemical pathway structures, to see the stability of their steady states. Following De Leenheer et al. (J. Math. Chem. 41 (2007) 295), we employ the Gershgorin circle theorem, which elegantly assesses stability. This is the key tool for our analysis. Once we have the linear stability matrix laid out in a suitable form, the application of the method is straightforward. We find that in open biochemical pathways, simple chains, branches and loops always have stable steady states. We conclude that simple open pathways are stable.

Flach, Edward H.; Schnell, Santiago

2010-01-01

51

Opening Up Access to Open Access  

ERIC Educational Resources Information Center

As the corpus of gray literature grows and the price of serials rises, it becomes increasingly important to explore ways to integrate the free and open Web seamlessly into one's collections. Users, after all, are discovering these materials all the time via sites such as Google Scholar and Scirus or by searching arXiv.org or CiteSeer directly.…

Singer, Ross

2008-01-01

52

Re?invigorating openness at The Open University: the role of Open Educational Resources  

Microsoft Academic Search

This paper describes the internal motivations and external drivers that led The Open University UK to enter the field of Open Educational Resources through its institution?wide OpenLearn initiative (www.open.ac.uk\\/openlearn). It also describes some of the emerging evidence of the impacts inside and outside the university. Through the rapid implementation and operation of the OpenLearn website, The Open University UK has

Brenda Gourley

2009-01-01

53

Demystifying Open Access  

SciTech Connect

The tenets of Open Access are to grant anyone, anywhere and anytime free access to the results of scientific research. HEP spearheaded the Open Access dissemination of scientific results with the mass mailing of preprints in the pre-WWW era and with the launch of the arXiv preprint system at the dawn of the '90s. The HEP community is now ready for a further push to Open Access which retains all the advantages of the peer-review system and, at the same time, brings the spiraling cost of journal subscriptions under control. I will present a possible plan for the conversion to Open Access of HEP peer-reviewed journals, through a consortium of HEP funding agencies, laboratories and libraries: SCOAP3 (Sponsoring Consortium for Open Access Publishing in Particle Physics). SCOAP3 will engage with scientific publishers towards building a sustainable model for Open Access publishing, which is as transparent as possible for HEP authors. In this talk I will present a short overview of the history of Open Access in HEP, the details of the SCOAP3 model and the outlook for its implementation.

Mele, Salvatore (CERN) [CERN

2007-05-30

54

Demystifying Open Access  

ScienceCinema

The tenets of Open Access are to grant anyone, anywhere and anytime free access to the results of scientific research. HEP spearheaded the Open Access dissemination of scientific results with the mass mailing of preprints in the pre-WWW era and with the launch of the arXiv preprint system at the dawn of the '90s. The HEP community is now ready for a further push to Open Access which retains all the advantages of the peer-review system and, at the same time, brings the spiraling cost of journal subscriptions under control. I will present a possible plan for the conversion to Open Access of HEP peer-reviewed journals, through a consortium of HEP funding agencies, laboratories and libraries: SCOAP3 (Sponsoring Consortium for Open Access Publishing in Particle Physics). SCOAP3 will engage with scientific publishers towards building a sustainable model for Open Access publishing, which is as transparent as possible for HEP authors. In this talk I will present a short overview of the history of Open Access in HEP, the details of the SCOAP3 model and the outlook for its implementation.

55

Open Energy Info (OpenEI) (Fact Sheet)  

SciTech Connect

The Open Energy Information (OpenEI.org) initiative is a free, open-source, knowledge-sharing platform. OpenEI was created to provide access to data, models, tools, and information that accelerate the transition to clean energy systems through informed decisions.

Not Available

2010-12-01

56

In Praise of Openness  

NASA Astrophysics Data System (ADS)

Open access brings greater visibility and impact to the work of scientists as is evidenced in the examples discussed in this paper. Researchers are often reluctant and afraid to deposit their works in Institutional Repositories. However, as is shown here, once they do so, they do not regret it. Open access will shortly become the norm and will be accepted by the vast majority of scientists. Seen through the lens of the philosophy of Bertrand Russell, the moral, economic and philosophical imperatives for open access are indeed strong.

Arunachalam, S.

2010-10-01

57

Open Education: Critique and Assessment.  

ERIC Educational Resources Information Center

This publication is a collection of eight articles concerned with the open education movement in the United States. The articles include "The Concept of Openness: An Introduction," by Vincent Rogers and Bud Church; "Open Education and American Values: A Tentative Exploration," by Bud Church; "A British View of Open Education in the U.S.," by…

Rogers, Vincent R., Ed.; Church, Bud, Ed.

58

Opening the Language Lab.  

ERIC Educational Resources Information Center

Describes a laboratory structure based on the open classroom model, consisting of various "skill stations," such as the "listening comprehension and pronunciation station," and designed to allow for flexibility, stimulation, variety, and contact between teacher and student. (AM)

Chadwell, Courtenay S.

1978-01-01

59

Defining Open Education  

ERIC Educational Resources Information Center

Authors believed that sharper definitions of open education can keep the current movement authentic to its early consensus ideals while avoiding dogma, orthodoxy, discipleships: charisma, and latter-day carpetbagging. (Author/RK)

Walberg, Herbert J.; Thomas, Susan Christie

1974-01-01

60

Open Rotor Spin Test  

NASA Video Gallery

An open rotor, also known as a high-speed propeller, is tested in a wind tunnel. The propeller moves much more quickly than a standard propeller, and the blades of the propeller are shaped differen...

61

Open Science Directory  

NSDL National Science Digital Library

Readers may have heard of the "digital divide", but what about the scientific "digital divide"? The Open Science Directory is attempting to bridge this gap by providing access to a wide range of journals to researchers in both developing and developed countries. Working with the support of EBSCO Information Services and Hasselt University Library, the Open Science Directory provides access to approximately 13000 scientific journals. The Directory includes collections of open access journals and also draws on a variety of other resources, including BioMed Central and PubMed Central. By clicking on the "Open Science Directory" tab, visitors will be redirected to the site's sophisticated search engine. Visitors can browse the list of titles alphabetically, topically, or also create their own detailed search across a number of fields.

62

Cholecystectomy - Open and Laparoscopic  

MedlinePLUS

Cholecystectomy - Open and Laparoscopic Introduction Gallstones are a relatively common condition that causes severe pain in the abdomen. Sometimes, even though ... cystic duct to the common bile duct. Symptoms and their Causes Stones can form in the gallbladder. ...

63

The Open AUC Project  

Microsoft Academic Search

Progress in analytical ultracentrifugation (AUC) has been hindered by obstructions to hardware innovation and by software\\u000a incompatibility. In this paper, we announce and outline the Open AUC Project. The goals of the Open AUC Project are to stimulate\\u000a AUC innovation by improving instrumentation, detectors, acquisition and analysis software, and collaborative tools. These\\u000a improvements are needed for the next generation of

Helmut Cölfen; Thomas M. Laue; Wendel Wohlleben; Kristian Schilling; Engin Karabudak; Bradley W. Langhorst; Emre Brookes; Bruce Dubbs; Dan Zollars; Mattia Rocco; Borries Demeler

2010-01-01

64

OpenTopography  

NASA Astrophysics Data System (ADS)

OpenTopography is a cyberinfrastructure-based facility for online access to high-resolution topography and tools. The project is an outcome of the Geosciences Network (GEON) project, which was a research project funded several years ago in the US to investigate the use of cyberinfrastructure to support research and education in the geosciences. OpenTopography provides online access to large LiDAR point cloud datasets along with services for processing these data. Users are able to generate custom DEMs by invoking DEM services provided by OpenTopography with custom parameter values. Users can track the progress of their jobs, and a private myOpenTopo area retains job information and job outputs. Data available at OpenTopography are provided by a variety of data acquisition groups under joint agreements and memoranda of understanding (MoU). These include national facilities such as the National Center for Airborne Lidar Mapping, as well as local, state, and federal agencies. OpenTopography is also being designed as a hub for high-resolution topography resources. Datasets and services available at other locations can also be registered here, providing a "one-stop shop" for such information. We will describe the OpenTopography system architecture and its current set of features, including the service-oriented architecture, a job-tracking database, and social networking features. We will also describe several design and development activities underway to archive and publish datasets using digital object identifiers (DOIs); create a more flexible and scalable high-performance environment for processing of large datasets; extend support for satellite-based and terrestrial lidar as well as synthetic aperture radar (SAR) data; and create a "pluggable" infrastructure for third-party services. OpenTopography has successfully created a facility for sharing lidar data. In the next phase, we are developing a facility that will also enable equally easy and successful sharing of services related to these data.

Baru, C.; Arrowsmith, R.; Crosby, C.; Nandigam, V.; Phan, M.; Cowart, C.

2012-04-01

65

Re-Invigorating Openness at The Open University: The Role of Open Educational Resources  

ERIC Educational Resources Information Center

This paper describes the internal motivations and external drivers that led The Open University UK to enter the field of Open Educational Resources through its institution-wide OpenLearn initiative (www.open.ac.uk/openlearn). It also describes some of the emerging evidence of the impacts inside and outside the university. Through the rapid…

Gourley, Brenda; Lane, Andy

2009-01-01

66

DMOZ Open Directory Project  

NSDL National Science Digital Library

NewHoo!, a community-maintained search engine started in June 1998, has just been purchased by Netscape and is now dubbed the DMOZ Open Directory Project. While Web surfers already have an abundance of search engine options, Open Directory distinguishes itself through its method more than its content. That is, sites are selected, categorized, and annotated by over 4,500 "volunteer editors." NewHoo! contained over 100,000 categorized Websites when acquired by Netscape, and content will surely grow. The site also offers information on volunteering as an editor and using copies of the directory. "Netscape will offer a special license, similar to the mozilla.org open source code development license, to allow individuals and organizations to take advantage of and use copies of the directory that they can crawl, archive and reuse on their machines."

1998-01-01

67

SFMOMA: Open Space  

NSDL National Science Digital Library

There are thousands of museums in the United States and many provide an interesting and useful blog on their website, including Open Space, from the San Francisco Museum of Modern Art (SFMOMA). This blog is notable because it invites participation from the local San Francisco arts community. The staff at Open Space is using blogging because of its "somewhat rowdy virtual halls and environments" where it's possible to "connect what happens inside the museum to the life and vitality of the city and the art-loving public outside and around SFMOMA." Open Space is named after a Bay Area poetry magazine that appeared in 1965, which published only local writers' and artists' work exactly as submitted, without censorship. Columnists change periodically on the blog and current columnists include art journalist and web-media producer Joseph del Pesco; visual artist Duane Deterville; poet Cedar Sigo; artist Stephanie Syjuco; and author Michelle Tea.

68

[Anterior open bite].  

PubMed

In almost 50% of the Dutch population, the mandibular incisors do not contact the maxillary ones. An open bite is usually based on an interposition of the tongue and can be combined with other functional disturbances as digit sucking. A large open bite with an excessive facial deformity can be treated adequately, after facial growth is completed, by a combined orthodontic-surgical approach, in which a good cooperation between the orthodontist and the oral surgeon is essential. The correction of the facial deformity is of a permanent nature. That does not always apply to the open bite due to interposition of the tongue. Often it is not possible to arrive at complete contact by orthodontic or surgical means. The improvement realized can fade away partly in the years following. PMID:11820016

Hoppenreijs, T J; van der Linden, F P

1992-11-01

69

OpenHRP: Open Architecture Humanoid Robotics Platform  

Microsoft Academic Search

This paper presents the open architecture humanoid robotics platform (OpenHRP) which consists of a simulator and motion control library of humanoid robots. The binary software developed on OpenHRP can be applied to the real counterpart as is, thank to the proposed hardware abstraction and synchronization mechanism. The compatibility between the simulation and corresponding experiment has been successfully examined. OpenHRP is

Fumio Kanehiro; Hirohisa Hirukawa; Shuuji Kajita

2004-01-01

70

Open system environment procurement  

NASA Technical Reports Server (NTRS)

Relationships between the request for procurement (RFP) process and open system environment (OSE) standards are described. A guide was prepared to help Federal agency personnel overcome problems in writing an adequate statement of work and developing realistic evaluation criteria when transitioning to an OSE. The guide contains appropriate decision points and transition strategies for developing applications that are affordable, scalable and interoperable across a broad range of computing environments. While useful, the guide does not eliminate the requirement that agencies posses in-depth expertise in software development, communications, and database technology in order to evaluate open systems.

Fisher, Gary

1994-01-01

71

The Open Learning Object Model to Promote Open Educational Resources  

ERIC Educational Resources Information Center

In this paper we present the results of research work, that forms part of the activities of the EU-funded project SLOOP: Sharing Learning Objects in an Open Perspective, aimed at encouraging the definition, development and management of Open Educational Resources based on the Learning Object paradigm (Wiley, 2000). We present a model of Open

Fulantelli, Giovanni; Gentile, Manuel; Taibi, Davide; Allegra, Mario

2008-01-01

72

Limits to Open Class Performance?  

NASA Technical Reports Server (NTRS)

This viewgraph presentation describes the limits to open class performance. The contents include: 1) Standard Class; 2) 15m/Racing Class; 3) Open Class; and 4) Design Solutions associated with assumptions, limiting parameters, airfoil performance, current trends, and analysis.

Bowers, Albion H.

2007-01-01

73

Against the Odds Exhibition Opens  

MedlinePLUS

... Issue Past Issues Special Section Against the Odds Exhibition Opens Past Issues / Spring 2008 Table of Contents / ... April 17, Dr. Donald Lindberg officially opened the exhibition, "Against the Odds: Making a Difference in Global ...

74

Open-Door Policy  

ERIC Educational Resources Information Center

This article discusses an open-door policy and innovative program of Thorncliffe Park Public School, located in the heart of the diverse immigrant community in Toronto, that greatly expands community use of public schools. Community use of schools is hardly a new concept in Canada or in the United States, where schools have traditionally been the…

Sack, Joetta L.

2004-01-01

75

Open Data in Science  

Microsoft Academic Search

Open Data (OD) is an emerging term in the process of defining how scientific data may be published and re-used without price or permission barriers. Scientists generally see published data as belonging to the scientific community, but many publishers claim copyright over data and will not allow its re-use without permission. This is a major impediment to the progress of

Peter Murray-Rust

2008-01-01

76

Open-Heart Surgery  

Microsoft Academic Search

Heart disease is a debilitating illness accounting for almost half of the deaths in the United States and its pathophysiology has been intensively investigated (Kerson & Kerson, 1985). Consequences of heart disease for the family system, particularly for spouses, are less well understood. The purpose of this study was to assess stressors and needs of spouses of patients undergoing open-heart

D. J. Monahan; L. Kohman; M. Coleman

1996-01-01

77

Open Mind Conference  

NASA Technical Reports Server (NTRS)

Open Mind, The Association for the achievement of diversity in higher education, met in conference in Albuquerque, New Mexico, between October 16 and 18, 1992. A number of workgroups met to discuss the goals, structure, and generally evaluate the Association and its achievements. A summary of the workgroup sessions and their minutes are included.

King, Alexander H.

1995-01-01

78

Open Access and beyond.  

PubMed

Uncensored exchange of scientific results hastens progress. Open Access does not stop at the removal of price and permission barriers; still, censorship and reading disabilities, to name a few, hamper access to information. Here, we invite the scientific community and the public to discuss new methods to distribute, store and manage literature in order to achieve unfettered access to literature. PMID:16956402

Mathur, Shawn; Schmidt, Christian; Das, Chhaya; Tucker, Philip W

2006-01-01

79

Presto: Open Inquiry!  

ERIC Educational Resources Information Center

Although inquiry-based science teaching has been around since the 1960s, many teachers are slow to incorporate inquiry principles into their science lessons. The authors address this issue by using an analogy between a magician's card trick and open inquiry. This analogy was chosen to portray a difference of perspective and demonstrate how the…

Hermann, Ronald S.; Miranda, Rommel J.

2010-01-01

80

The Open Storage Dilemma  

ERIC Educational Resources Information Center

Over the past three decades, open storage facilities have been established at four major museums in order to address the long-standing problem of lack of gallery space for putting collections on view. While making tens of thousands of objects available to visitors represents a great leap forward in accessibility, it raises inherent questions about…

Orcutt, Kimberly

2011-01-01

81

Openers for Biology Classes.  

ERIC Educational Resources Information Center

This teaching guide contains 200 activities that are suitable for openers and demonstrations in biology classes. Details are provided regarding the use of these activities. Some of the broad topics under which the activities are organized include algae, amphibians, bacteria, biologists, crustaceans, dinosaurs, ecology, evolution, flowering plants,…

Gridley, C. Robert R.

82

Open sea skimmer barge  

SciTech Connect

An open sea skimmer barge for use as a dredge comprising a hull having a bow, bottom, side walls, stern having a substantially horizontal elongate slot extending across a portion thereof and a deck, a spill suction tunnel, a collection tank, secondary oil separation means and tertiary oil separation means.

Ayers, W.M.

1983-04-05

83

Open sea skimmer barge  

SciTech Connect

An open sea skimmer barge comprising a hull having a bow, bottom, side walls, stern having a substantially horizontal elongate slot extending across a portion thereof and a deck, a spill suction tunnel, a collection tank, secondary oil separation means and tertiary oil separation means.

Ayers, W.M.; Maheshwary, A.K.; Young, P.J.

1984-10-16

84

Open sea skimmer barge  

SciTech Connect

An open sea skimmer barge is disclosed comprising a hull having a bow, bottom, side walls, stern having a substantially horizontal elongate slot extending across a portion thereof and a deck, a suction tunnel, a collection tank, secondary oil separation means and tertiary oil separation means.

Ayers, W.M.

1983-08-16

85

OpenMP  

NSDL National Science Digital Library

major features of OpenMP, including its various constructs and directives for specifying parallel regions, work sharing, synchronization and data environment. Runtime library functions and environment variables are also covered. This tutorial includes both C and Fortran example codes and a lab exercise.

86

Minnesota's Open Enrollment Option.  

ERIC Educational Resources Information Center

This document examines the implementation and early effects of Minnesota's open-enrollment option, which allows families to apply to enroll their children in a public school in any nonresident school district in the state. During 1989-90, surveys were mailed to 2,663 participating families, 1,966 secondary school students, and all 432 district…

Rubenstein, Michael C.; And Others

87

Free open source software  

NSDL National Science Digital Library

This site offers open source software for the fields of civil and environmental engineering. Their mission statement is "to provide an online web directory for civil & environmental engineering." Nicely organized, the site is a valuable asset for anyone interested in this subject area.

2008-10-15

88

The Open Education Advisor.  

ERIC Educational Resources Information Center

This bulletin describes the work of the City College Advisory Service to Open Corridors, a program committed to changing schools in ways that will better supPort children's own spontaneous patterns of learning. In Part 1, advisors describe in their own words how they proceed to educate themselves for the advisory role they undertake and how they…

Alberty, Beth, Ed.; Dropkin, Ruth, Ed.

89

Opening AP to All  

ERIC Educational Resources Information Center

This article reports on a school's effort to open Advanced Placement (AP) to all by challenging its students to take the leap into AP courses. Samuel W. Wolfson High School, on the south side of Jacksonville, Florida, is one of 27 schools in five cities across the country that chose to participate in a College Board initiative called EXCELerator.…

Gewertz, Catherine

2008-01-01

90

Open Source in Education  

ERIC Educational Resources Information Center

Educational institutions have rushed to put their academic resources and services online, beginning the global community onto a common platform and awakening the interest of investors. Despite continuing technical challenges, online education shows great promise. Open source software offers one approach to addressing the technical problems in…

Lakhan, Shaheen E.; Jhunjhunwala, Kavita

2008-01-01

91

Open-Source Colorimeter  

PubMed Central

The high cost of what have historically been sophisticated research-related sensors and tools has limited their adoption to a relatively small group of well-funded researchers. This paper provides a methodology for applying an open-source approach to design and development of a colorimeter. A 3-D printable, open-source colorimeter utilizing only open-source hardware and software solutions and readily available discrete components is discussed and its performance compared to a commercial portable colorimeter. Performance is evaluated with commercial vials prepared for the closed reflux chemical oxygen demand (COD) method. This approach reduced the cost of reliable closed reflux COD by two orders of magnitude making it an economic alternative for the vast majority of potential users. The open-source colorimeter demonstrated good reproducibility and serves as a platform for further development and derivation of the design for other, similar purposes such as nephelometry. This approach promises unprecedented access to sophisticated instrumentation based on low-cost sensors by those most in need of it, under-developed and developing world laboratories.

Anzalone, Gerald C.; Glover, Alexandra G.; Pearce, Joshua M.

2013-01-01

92

Evaluating Open Source Software.  

National Technical Information Service (NTIS)

There is an overwhelming amount of open source software (OSS) available today that can be used throughout the software development life cycle. Nowadays, it is generally not a matter of whether one should use OSS, but rather, where one should use it. If on...

M. Kennedy

2010-01-01

93

Open Outcry Market  

NSDL National Science Digital Library

This example is an in-class market simulation conducted with paper cards assigning each student a buyer or seller role and a reservation price. This example is appropriate for both upper and lower division courses. Open Outcry Market was developed by Barry P. Keating at the University of Notre Dame.

Blecha, Betty J.

94

Open Fires. Volume I.  

National Technical Information Service (NTIS)

The research program has comprised the experimental and theoretical study of some basic laws of open fires. This study has been carried out by utilizing the pool fire technique, which consists in burning liquid fuels in cylindrical vessels, and in measuri...

P. P. del Notario

1967-01-01

95

Open Architecture Motion Controller.  

National Technical Information Service (NTIS)

Nomad, an open architecture motion controller, is described. It is formed by a combination of TMOS, C-WORKS, and other utilities. Nomad software runs in a UNIX environment and provides for sensor-controlled robotic motions, with user replaceable kinematic...

L. Rossol

1994-01-01

96

Guest Editorial: Open Educational Resources  

Microsoft Academic Search

THE term “open educational resources” (OER) was first proposed at UNESCO’s 2002 Forum on the Impact of Open Courseware for Higher Education in Developing Countries. Open educational resources are learning content or tools that are offered free of charge under a copyright license granting permissions for users to engage in the “4R” activities: reuse, revise, remix, and redistribute. In essence,

Erik Duval; David Wiley

2010-01-01

97

Detecting and diagnosing open defects  

Microsoft Academic Search

One of the common failures found in manufactured ICs are interconnect opens. While stuck-at and transition fault automatic test pattern generation (ATPG) patterns can detect open defects, these fault models do not catch all of them. This poster describes a project and research with a new open fault model to supplement the others. The project consists of many parts that

Dat Tran; LeRoy Winemberg; Darrell Carder; Xijiang Lin; Joe LeBritton; Bruce Swanson

2010-01-01

98

Educators Assess "Open Content" Movement  

ERIC Educational Resources Information Center

This article discusses the open-content movement in education. A small but growing movement of K-12 educators is latching on to educational resources that are "open," or free for others to use, change, and republish on web sites that promote sharing. The open-content movement is fueled partly by digital creation tools that make it easy to create…

Trotter, Andrew

2009-01-01

99

Open Educational Resources and Practices  

ERIC Educational Resources Information Center

This article looks at what constitutes an open educational resource and considers the issues and benefits to an educational institution that is moving to participate in open educational resource development and to adopt more open educational practices. It describes the initial steps in these directions being made by the Educational Development…

Blackall, Leigh

2008-01-01

100

Open Architecture Humanoid Robotics Platform  

Microsoft Academic Search

This paper introduces an open architecture hu- manoid robotics platform (OpenHRP for short) on which various building blocks of humanoid robotics can be investigated. OpenHRP is a virtual humanoid robot platform with a compatible humanoid robot, and con- sists of a simulator of humanoid robots and motion control library for them which can also be applied to a compatible humanoid

Funiio KANEHIRO; Kiyoshi Fujiwara; Shuuji Kajita; Kazuhito Yokoi; Kenji Kaneko; Hirohisa Hirukawa; Yoshihiko Nakamura; Katsu Yamane

2002-01-01

101

How Is Open Source Special?  

ERIC Educational Resources Information Center

Open source software projects involve the production of goods, but in software projects, the "goods" consist of information. The open source model is an alternative to the conventional centralized, command-and-control way in which things are usually made. In contrast, open source projects are genuinely decentralized and transparent. Transparent…

Kapor, Mitchell

2005-01-01

102

Bibliography of Open Classroom Articles.  

ERIC Educational Resources Information Center

Selected periodicals dealing with the open classroom concept are reviewed and evaluated in this annotated bibliography, which is intended as an introduction to open education for parents and concerned citizens. Technical journals are avoided. Some articles are singled out and rated as good, very good, or excellent. The majority deal with the open

Sibly, Nancy, Comp.

103

Open Data, Open Source and Open Standards in chemistry: The Blue Obelisk five years on  

PubMed Central

Background The Blue Obelisk movement was established in 2005 as a response to the lack of Open Data, Open Standards and Open Source (ODOSOS) in chemistry. It aims to make it easier to carry out chemistry research by promoting interoperability between chemistry software, encouraging cooperation between Open Source developers, and developing community resources and Open Standards. Results This contribution looks back on the work carried out by the Blue Obelisk in the past 5 years and surveys progress and remaining challenges in the areas of Open Data, Open Standards, and Open Source in chemistry. Conclusions We show that the Blue Obelisk has been very successful in bringing together researchers and developers with common interests in ODOSOS, leading to development of many useful resources freely available to the chemistry community.

2011-01-01

104

Groklaw: Understanding Open Source Software  

NSDL National Science Digital Library

Mark Webbink, Red Hat's general counsel, wrote this article for attorneys wanting to know the basic issues regarding free and open source software. Aside from listing best practices for law offices, he provides a general overview of various open source licenses, explains US copyright law, defines derivative works, and touches on the indemnification issue and the difference between open source and shared source. Webbink also highlights some of the common myths and misconceptions about the General Public License (GPL) and open source and provides links to other sites with more information on open source software. Readers' comments and responses to the article are also posted in a threaded discussion format.

105

Open scientific communication urged  

NASA Astrophysics Data System (ADS)

In a report released last week the National Academy of Sciences' Panel on Scientific Communication and National Security concluded that the ‘limited and uncertain benefits’ of controls on the dissemination of scientific and technological research are ‘outweighed by the importance of scientific progress, which open communication accelerates, to the overall welfare of the nation.’ The 18-member panel, chaired by Dale R. Corson, president emeritus of Cornell University, was created last spring (Eos, April 20, 1982, p. 241) to examine the delicate balance between open dissemination of scientific and technical information and the U.S. government's desire to protect scientific and technological achievements from being translated into military advantages for our political adversaries.The panel dealt almost exclusively with the relationship between the United States and the Soviet Union but noted that there are ‘clear problems in scientific communication and national security involving Third World countries.’ Further study of this matter is necessary.

Richman, Barbara T.

106

Plasma opening switch  

DOEpatents

A command triggered plasma opening switch assembly using an amplification stage. The assembly surrounds a coaxial transmission line and has a main plasma opening switch (POS) close to the load and a trigger POS upstream from the main POS. The trigger POS establishes two different current pathways through the assembly depended on whether it has received a trigger current pulse. The initial pathway has both POS's with plasma between their anodes and cathodes to form a short across the transmission line and isolating the load. The final current pathway is formed when the trigger POS receives a trigger current pulse which energizes its fast coil to push the conductive plasma out from between its anode and cathode, allowing the main transmission line current to pass to the fast coil of the main POS, thus pushing its plasma out the way so as to establish a direct current pathway to the load.

Savage, Mark E. (Albuquerque, NM); Mendel, Jr., Clifford W. (Albuquerque, NM)

2001-01-01

107

Open Textbooks: Computer Science  

NSDL National Science Digital Library

The open textbook movement is in full flower, and curious parties can find topics covering horticulture, engineering, and philosophy scattered across the Internet. This particular website brings together over three dozen college level textbooks from the field of computer science. The site includes computer science textbooks from the Open University in the United Kingdom, the University of Oregon, and a number of other universities. The titles are arranged alphabetically, and they run the gamut from "Accessibility of eLearning" to "XML-Managing Data Exchange". Visitors will note that while not all of the textbooks have been vetted by professional reviewers, those that have been reviewed have a "*" symbol next to their name.

108

OpenNet Initiative  

NSDL National Science Digital Library

How can the open spirit and free exchange of ideas be kept alive on the Internet? Can any organization combat Internet filtering and surveillance practices? The OpenNet Initiative works to do just that. The Initiative consists of a partnership between four academic institutions, including the University of Toronto and Harvard University. Their work is focused on exposing and analyzing practices such as Internet filtering, with the ultimate goal of helping "inform better public policy and advocacy work in this area." To get a good idea of who's filtering what, scroll down their homepage to the "Global Internet Filtering" section. Here visitors can view reports on countries' Internet filtering practices. Visitors can also read documents that include "China's Green Dam: The Implications of Government Control Encroaching on the Home PC". To get an overview of what exactly "filtering" means, users should definitely peruse the very well-written "About Filtering" piece.

109

Open Humanities Press  

NSDL National Science Digital Library

As more and more journals elect to move to an open-source model, it is delightful to learn about the existence of the Open Humanities Press (OHP). Their mission is "to make leading works of contemporary critical thought freely available worldwide." First-time visitors will want to look over the "About OHP" section before delving into the rest of the site. Afterwards, they should feel free to look through one of their seven journals, which include "Cosmos and History", "Culture Machine", "Film-Philosophy", and "Fibreculture". While all of the journals are worth a look, the "Film-Philosophy" journal is particularly compelling, and visitors can browse through issues back to 1997. Finally, visitors can also learn about submitting their work for consideration and also take in a few essays about the guiding principles and history of the OHP.

110

Open VA: Video Archive  

NSDL National Science Digital Library

The Open and Digital Learning Resources Conference is a collaborative initiative between the Office of Governor of the Commonwealth of Virginia, the State Council of Higher Education for Virginia, the Virginia Community College System, and fourteen institutions of higher education. This corner of its website brings together an archive of videos from the first annual OpenVA conference. Users can make their way through six different videos, including "A Future With Only Ten Universities" and "Staying Relevant in the Future of Education" by David Wiley. Taken as a whole, these vignettes offer a portrait of how higher education will change in the coming decades and is a resource most valuable to policymakers and education specialists.

111

Open Architecture Network  

NSDL National Science Digital Library

The Open Architecture Network site starts things off with a bold and passionate statement: "Le Corbusier had it all wrong". It's definitely a good way to get visitors" attention upon entering the site. The Network is an online, open source community which seeks to improve living conditions through innovative and sustainable design. On the site, visitors can share their design ideas and plans, review and comment on posted designs, and also collaborate with each other. Visitors will no doubt get exited about the "Projects" section, which is both intellectually stimulating and well-designed. Visitors can search the projects by status, region, location, or theme, or they can also perform a keyword search as well. There are some wonderful finds here, including a childcare school in Sri Lanka, a day laborer shelter, and a "Doc-in-a-Box", which is meant to serve as a mobile health care center.

112

Open Door Website: Measurements  

NSDL National Science Digital Library

This resource, part of the Open Door website, provides basic information on the role of measurement in experimentation. It explores methods for measuring very small distances, graphing experimental results, "best-fit" line, and explores the role of uncertainty in measurement. For the teacher who expects students to do experimental or quasi-experimental lab work, this resource provides support in graphing results, writing an experimental report, and how uncertainty in measurement affects the final results.

Door, Knock O.

2005-12-14

113

Laparoscopic Versus Open Appendectomy  

PubMed Central

Summary Background Data: The value of laparoscopy in appendicitis is not established. Studies suffer from multiple limitations. Our aim is to compare the safety and benefits of laparoscopic versus open appendectomy in a prospective randomized double blind study. Methods: Two hundred forty-seven patients were analyzed following either laparoscopic or open appendectomy. A standardized wound dressing was applied blinding both patients and independent data collectors. Surgical technique was standardized among 4 surgeons. The main outcome measures were postoperative complications. Secondary outcome measures included evaluation of pain and activity scores at base line preoperatively and on every postoperative day, as well as resumption of diet and length of stay. Activity scores and quality of life were assessed on short-term follow-up. Results: There was no mortality. The overall complication rate was similar in both groups (18.5% versus 17% in the laparoscopic and open groups respectively), but some early complications in the laparoscopic group required a reoperation. Operating time was significantly longer in the laparoscopic group (80 minutes versus 60 minutes; P = 0.000) while there was no difference in the pain scores and medications, resumption of diet, length of stay, or activity scores. At 2 weeks, there was no difference in the activity or pain scores, but physical health and general scores on the short-form 36 (SF36) quality of life assessment forms were significantly better in the laparoscopic group. Appendectomy for acute or complicated (perforated and gangrenous) appendicitis had similar complication rates, regardless of the technique (P = 0.181). Conclusions: Unlike other minimally invasive procedures, laparoscopic appendectomy did not offer a significant advantage over open appendectomy in all studied parameters except quality of life scores at 2 weeks. It also took longer to perform. The choice of the procedure should be based on surgeon or patient preference.

Katkhouda, Namir; Mason, Rodney J.; Towfigh, Shirin; Gevorgyan, Anna; Essani, Rahila

2005-01-01

114

Bispectrum from open inflation  

NASA Astrophysics Data System (ADS)

We calculate the bispectrum of primordial curvature perturbations, ?, generated during ``open inflation.'' Inflation occurs inside a bubble nucleated via quantum tunneling from the background false vacuum state. Our universe lives inside the bubble, which can be described as a Friedmann-Lema?tre-Robertson-Walker (FLRW) universe with negative spatial curvature, undergoing slow-roll inflation. We pay special attention to the issue of an initial state for quantum fluctuations. A ``vacuum state'' defined by a positive-frequency mode in de Sitter space charted by open coordinates is different from the Euclidean vacuum (which is equivalent to the so-called ``Bunch-Davies vacuum'' defined by a positive-frequency mode in de Sitter space charted by flat coordinates). Quantum tunneling (bubble nucleation) then modifies the initial state away from the original Euclidean vacuum. While most of the previous study on modifications of the initial quantum state introduces, by hand, an initial time at which the quantum state is modified as well as the form of the modification, an effective initial time naturally emerges and the form is fixed by quantum tunneling in open inflation models. Therefore, open inflation enables a self-consistent computation of the effect of a modified initial state on the bispectrum. We find a term which goes as langle?k1?k2?k3ranglepropto1/k12k34 in the so-called squeezed configurations, k3 << k1 ? k2, in agreement with the previous study on modifications of the initial state. The bispectrum in the exact folded limit, e.g., k1 = k2+k3, is also enhanced and remains finite. However, these terms are exponentially suppressed when the wavelength of ? is smaller than the curvature radius of the universe. The leading-order bispectrum is equal to the usual one from single-field slow-roll inflation; the terms specific for open inflation arise only in the sub-leading order when the wavelength of ? is smaller than the curvature radius.

Sugimura, Kazuyuki; Komatsu, Eiichiro

2013-11-01

115

Open Courseware Vs. Open Source Software - A Critical Comparison  

Microsoft Academic Search

The Massachusetts Institute of Technology (MIT) recently announced its OpenCourseWare project, which will make all its courseware available on the Internet free of charge. This paper compares the OpenCourseWare project to the open source approach of software development. It contrasts and evaluates the nature of the products, the motives of the producers and users, the consequences on the market environment

Stefan Baldi; Hauke Heier; Fabian Stanzick

2002-01-01

116

openBEB: open biological experiment browser for correlative measurements  

PubMed Central

Background New experimental methods must be developed to study interaction networks in systems biology. To reduce biological noise, individual subjects, such as single cells, should be analyzed using high throughput approaches. The measurement of several correlative physical properties would further improve data consistency. Accordingly, a considerable quantity of data must be acquired, correlated, catalogued and stored in a database for subsequent analysis. Results We have developed openBEB (open Biological Experiment Browser), a software framework for data acquisition, coordination, annotation and synchronization with database solutions such as openBIS. OpenBEB consists of two main parts: A core program and a plug-in manager. Whereas the data-type independent core of openBEB maintains a local container of raw-data and metadata and provides annotation and data management tools, all data-specific tasks are performed by plug-ins. The open architecture of openBEB enables the fast integration of plug-ins, e.g., for data acquisition or visualization. A macro-interpreter allows the automation and coordination of the different modules. An update and deployment mechanism keeps the core program, the plug-ins and the metadata definition files in sync with a central repository. Conclusions The versatility, the simple deployment and update mechanism, and the scalability in terms of module integration offered by openBEB make this software interesting for a large scientific community. OpenBEB targets three types of researcher, ideally working closely together: (i) Engineers and scientists developing new methods and instruments, e.g., for systems-biology, (ii) scientists performing biological experiments, (iii) theoreticians and mathematicians analyzing data. The design of openBEB enables the rapid development of plug-ins, which will inherently benefit from the “house keeping” abilities of the core program. We report the use of openBEB to combine live cell microscopy, microfluidic control and visual proteomics. In this example, measurements from diverse complementary techniques are combined and correlated.

2014-01-01

117

OpenMDAO Framework Status  

NASA Technical Reports Server (NTRS)

Advancing and exploring the science of Multidisciplinary Analysis & Optimization (MDAO) capabilities are high-level goals in the Fundamental Aeronautics Program s Subsonic Fixed Wing (SFW) project. The OpenMDAO team has made significant progress toward completing the Alpha OpenMDAO deliverable due in September 2010. Included in the presentation are: details of progress on developing the OpenMDAO framework, example usage of OpenMDAO, technology transfer plans, near term plans, progress toward establishing partnerships with external parties, and discussion of additional potential collaborations.

Naiman, Cynthia Gutierrez

2010-01-01

118

A multilanguage platform for Open Source Intelligence  

Microsoft Academic Search

Open Source Intelligence (OSINT) is an intelligence gathering discipline that involves collecting information from open sources and analyzing it to produce usable intelligence. The revolution in information technology is making open sources more accessible, ubiquitous, and valuable, making open intelligence at less cost than ever before. The explosion in OSINT is transforming the intelligence world with the emergence of open

N. Baldini; F. Neri; M. Pettoni; STATO MAGGIORE DIFESA

2007-01-01

119

Reusable fast opening switch  

DOEpatents

A reusable fast opening switch for transferring energy, in the form of a high power pulse, from an electromagnetic storage device such as an inductor into a load. The switch is efficient, compact, fast and reusable. The switch comprises a ferromagnetic semiconductor which undergoes a fast transition between conductive and insulating states at a critical temperature and which undergoes the transition without a phase change in its crystal structure. A semiconductor such as europium rich europhous oxide, which undergoes a conductor to insulator transition when it is joule heated from its conductor state, can be used to form the switch.

Van Devender, John P. (Albuquerque, NM); Emin, David (Albuquerque, NM)

1986-01-01

120

Reusable fast opening switch  

DOEpatents

A reusable fast opening switch for transferring energy, in the form of a high power pulse, from an electromagnetic storage device such as an inductor into a load. The switch is efficient, compact, fast and reusable. The switch comprises a ferromagnetic semiconductor which undergoes a fast transition between conductive and metallic states at a critical temperature and which undergoes the transition without a phase change in its crystal structure. A semiconductor such as europium rich europhous oxide, which undergoes a conductor to insulator transition when it is joule heated from its conductor state, can be used to form the switch.

Van Devender, J.P.; Emin, D.

1983-12-21

121

US Open 2000  

NSDL National Science Digital Library

Tennis fans can follow all the action at this year's US Open at the official site, crafted by IBM. In addition to the latest results and live match scores, the site offers completed match results, a schedule of play, photos and interviews by day, a video gallery (under construction), and biographies and other information for all the players. Other resources include a virtual tour, Web cams (including an interactive live "Slam Cam"), a daily update email list, wall paper, and fan cards that users can send to their friends.

122

Open Rotor Test Status  

NASA Technical Reports Server (NTRS)

Testing of low noise, counter-rotating open rotor propulsion concepts has been ongoing at Glenn Research Center in collaboration with General Electric Company. The presentation is an overview of the testing that has been completed to date and previews the upcoming test entries. The NASA Environmentally Responsible Aviation Project Diagnostics entry is the most recent to finish. That test entry included acoustic phased array, pressure sensitive paint, particle image velocimetry, pylon installed measurements and acoustic shielding measurements. A preview of the data to be acquired in the 8x6 high-speed wind tunnel is also included.

VanZante, Dale E.

2010-01-01

123

Open Directory Project: Science  

NSDL National Science Digital Library

The Open Directory Project is a volunteer-edited directory of the Web. This section of the site enables the user to browse the Directory's Science pages. The links are organized alphabetically by type (academic departments, chat rooms and forums, educational resources, news and media, and so forth) and by topic (agriculture, astronomy, biology, chemistry, computer science, Earth sciences, and so forth). From this page users can also search either the entire Directory, the Science section, or a topical subsection of Science. The page also offers browsing of similarly organized Science links in a choice of 74 languages, including Arabic, Chinese, Dutch, French, German, Hebrew, Hindi, Italian, Japanese, Korean, Portuguese, Russian, and Spanish.

2001-02-17

124

Darwin: Open Source  

NSDL National Science Digital Library

On March 16th, 1999, Apple computer made two announcements that indicate radical changes in the direction of its OS. One of these announcements was that Apple is releasing the source code to portions of Mac OS X server. The project, called Darwin, has not only released the foundation layers of the operating system, but established a system of user-contributed modifications to the source. Modeled after Linux and Apache, this new direction by Apple has been embraced by Eric Raymond, President of the Open Source Initiative.

125

Open airscrew VTOL concepts  

NASA Technical Reports Server (NTRS)

The following concepts, based on using open airscrew(s) for VTOL maneuvers, are re-examined in light of current technology: (1) tip-driven helicopters, (2) compound helicopters; and (3) high-speed VTOL aircraft, represented by tiltrotors, tiltwings, retractoplanes and stoppable rotors. Criteria, permitting one to compare performance of aircraft using diverse lifting and propelling methods are established. Determination of currently possible performance, indication of near-future potentials, and comparison of those items with the baseline levels (as represented by contemporary shaft-driven helicopters, first generation tiltrotors, and commercial turboprop fixed-wind aircraft) constitutes bulk of this report.

Stepniewski, W. Z.; Tarczynski, T.

1992-01-01

126

Open Educational Resources  

NSDL National Science Digital Library

Many faculty members of Penn State's College of Earth and Mineral Sciences have created digital educational resources for their students. In the interest of sharing these excellent resources, the Open Educational Resources site presents digital video, texts, simulations, animations and illustrations crafted by these learned individuals. First-time users can get started by looking over the Featured Content area, which brings together everything from a hands-on, Flash-based application that helps students learn about energy consumption to a lesson on seismic hazards. Additionally, visitors can also sign up to receive updates about new additions to the site and also learn more about contributing their own work.

127

Science Medal nominations open  

NASA Astrophysics Data System (ADS)

Nominations are now open for the National Medal of Technology, which is awarded periodically by the president of the United States to recognize individuals and companies who have made outstanding contributions in the promotion of U.S. technology or technological manpower.Any U.S. citizen or company with U.S. ownership is eligible. Persons connected with administration or selection procedures for the medal will not be eligible during the period of their service or for 5 years thereafter. The number of recipients will depend on the number of deserving nominees. It is anticipated that no more than 12 medals will be awarded on any one occasion.

128

Dispersion Model Development for Open Burn/Open Detonation Sources.  

National Technical Information Service (NTIS)

The disposal of obsolete munitions, propellants, and manufacturing wastes is conducted at DoD and DOE facilities. The most common disposal method is open burning and open detonation of the material, which occurs in an earthen pit or bermed area. At presen...

J. C. Weil B. Templeman R. Banta R. Weber W. Mitchell

1996-01-01

129

Equipping the Open-Plan School, Equipping for Open Education.  

ERIC Educational Resources Information Center

The performance specifications of furniture and equipment for open education and open-plan schools differ from conventional classroom furniture in that it must be easily moved, have a range of dimensions, contain multipurpose interchangeable components, and be designed to accommodate a variety of student/teacher uses. The author suggests some…

Lassiter, Frank

130

Open Lung Biopsy  

PubMed Central

Steady improvement in the diagnostic appraisal of obscure pulmonary and mediastinal disease has permitted more intelligent treatment, better prognosis, and where necessary more accurate assessment of compensability. Open lung biopsy is designed to obtain material for pathological study when there is no pleural, mediastinal, or airway lesion on which to base a working diagnosis. A study of 54 patients in whom lung biopsy was performed at the Toronto General Hospital and Weston Sanatorium is reported. A positive tissue diagnosis was obtained in approximately 75%. The procedure is considered relatively innocuous if sensible selection is exercised to exclude patients with terminal disease, particularly that associated with severe cardiorespiratory insufficiency. No major complications occurred in this series. It is concluded that open lung biopsy might reasonably receive much wider application than in the past in cases in which a definite diagnosis cannot otherwise be made. ImagesFig. 1Fig. 2Fig. 3aFig. 3bFig. 4Fig. 5Fig. 6Fig. 7Fig. 8Fig. 9Fig. 10Fig. 11

Delarue, Norman C.; Strangway, Donald W.

1964-01-01

131

Open Budget Index  

NSDL National Science Digital Library

Around the world different governments provide different levels of information about their national budgets, and for some parties, this is a real area of concern. For those interested in this timely subject, the Center of Budget and Policy Priorities has created the Open Budget Index. Released in October 2006, this index rates countries on how open their budget books are to their citizens. As the site notes, this information can help a variety of groups "identify meaningful budget reforms needed in specific countries to combat corruption and strengthen basic services to improve people's lives." A great way to start on the site is by looking through country profiles from Uganda, Mexico, and India that will let concerned parties know specifically how budget transparency improves people's lives. After that, visitors can scroll down through a complete list of country summaries and questionnaires from Albania to Zambia. Visitors should also be aware that many of the materials on the site are available in a number of languages, including Arabic, French, Russian, and Spanish.

132

Abdominal aortic aneurysm repair - open - discharge  

MedlinePLUS

AAA - open - discharge; Repair - aortic aneurysm - open - discharge ... You had open aortic aneurysm surgery to repair an aneurysm (a widened part) in your aorta, the large artery that carries blood to your ...

133

Open Problems in Computer Virology  

Microsoft Academic Search

In this article, we briefly review some of the most important open problems in computer virology, in three dierent areas: theoretical computer virology, virus propagation modeling and antiviral techniques. For each area, we briefly describe the open problems, we review the state of the art, and propose promising research directions.

Eric Filiol; Marko Helenius; Stefano Zanero

2006-01-01

134

Federal Open Agent System Platform  

Microsoft Academic Search

Open Agent System platform based on High Level Architecture is firstly proposed to support the application involving heterogeneous agents. The basic idea is to develop different wrappers for different agent systems, which are wrapped as federates to join a federation. The platform is based on High Level Architecture and the advantages for this open standard are naturally inherited, such as

Hong-Bing Wang; Zhi-Hua Fan; Chun-Dong She

2006-01-01

135

Managing Copyright in Open Networks  

Microsoft Academic Search

The need for an electronic copyright management system (ECMS) that protects intellectual property rights (IPR) in open network environments continues to grow. Network security issues are classically handled through cryptography; however, cryptography ensures confidentiality, authenticity, and integrity only when a message is transmitted through a public channel, such as an open network. It does not protect against unauthorized copying after

Alessandro Piva; Franco Bartolini; Mauro Barni

2002-01-01

136

Digital Scholarship and Open Access  

ERIC Educational Resources Information Center

Open access publications provide scholars with unrestricted access to the "conversation" that is the basis for the advancement of knowledge. The large number of open access journals, archives, and depositories already in existence demonstrates the technical and economic viability of providing unrestricted access to the literature that is the…

Losoff, Barbara; Pence, Harry E.

2010-01-01

137

Towards New Open Economy Macroeconometrics  

Microsoft Academic Search

I estimate the structural parameters of a small open economy model using data from Canada and the United States. The model improves upon the recent literature in open economy macroeconomics from an empirical perspective. I estimate parameters by using non-linear least squares at the single-equation level. Estimates of most parameters are characterized by small standard errors and are in line

Fabio Pietro Ghironi

2000-01-01

138

When Educational Resources Are Open  

ERIC Educational Resources Information Center

This article is a partial look at what the future of education might be if educational resources become open online. Intertwingularity is discussed as a general term for what OER will do online. Predictions about an open education future are based on nine quotations from books by popular writers about our networked age. When the network mechanisms…

Breck, Judy

2007-01-01

139

Next Stop: OpenSim!  

ERIC Educational Resources Information Center

Unhappy with conditions in Second Life, educators are migrating to a developing virtual world that offers them greater autonomy and a safer platform for their students at far less a cost. OpenSimulator is an open source virtual world platform that schools can run for free on their own servers or can get cheaply and quickly--the space can be up and…

Korolov, Maria

2011-01-01

140

Community Open Source Strategic Plan.  

National Technical Information Service (NTIS)

The Strategic Plan describes the goals and objectives of the Community Open Source Program for the next seven years. It builds on the half-century-plus heritage of Open Source Information providers and users in the Intelligence Community. The Plan project...

1995-01-01

141

An open architecture motion controller  

NASA Technical Reports Server (NTRS)

Nomad, an open architecture motion controller, is described. It is formed by a combination of TMOS, C-WORKS, and other utilities. Nomad software runs in a UNIX environment and provides for sensor-controlled robotic motions, with user replaceable kinematics. It can also be tailored for highly specialized applications. Open controllers such as Nomad should have a major impact on the robotics industry.

Rossol, Lothar

1994-01-01

142

[Severe limitation of mouth opening].  

PubMed

Limitation of mouth opening is a common source of referral to an orofacial pain clinic with a proposed diagnosis of Temporomandibular Joint Dysfunction (TMD). The word "trismus" is defined by the American academy of orofacial pain as: "Myospasm of masticatory muscles specifically causing limited jaw opening; early symptom of tetanus". Therefore, once trismus is suspected, TMD should be ruled out. However, it is not uncommon to find the usage of this term to describe severe limitation of opening by causes other than myospasm, therefore posing the risk of misdiagnosis. The purpose of this article is to describe the differential diagnosis of hard end limitation of opening with emphasis on the clinical tools used to differentiate between muscle source of hard end limitation and other sources of hard end limitation. Several cases of hard end limitation of mouth opening are presented and through them major principles of orofacial diagnosis are discussed. PMID:15672641

Reiter, S; Winocur, E; Gavish, A; Eli, I

2004-10-01

143

The Open Science Grid  

SciTech Connect

The Open Science Grid (OSG) provides a distributed facility where the Consortium members provide guaranteed and opportunistic access to shared computing and storage resources. OSG provides support for and evolution of the infrastructure through activities that cover operations, security, software, troubleshooting, addition of new capabilities, and support for existing and engagement with new communities. The OSG SciDAC-2 project provides specific activities to manage and evolve the distributed infrastructure and support its use. The innovative aspects of the project are the maintenance and performance of a collaborative (shared & common) petascale national facility over tens of autonomous computing sites, for many hundreds of users, transferring terabytes of data a day, executing tens of thousands of jobs a day, and providing robust and usable resources for scientific groups of all types and sizes. More information can be found at the OSG web site: www.opensciencegrid.org.

Pordes, Ruth; /Fermilab; Kramer, Bill; Olson, Doug; / /LBL, Berkeley; Livny, Miron; Roy, Alain; /Wisconsin U., Madison; Avery, Paul; /Florida U.; Blackburn, Kent; /Caltech; Wenaus, Torre; /Brookhaven; Wurthwein, Frank; /UC, San Diego; Gardner, Rob; Wilde, Mike; /Chicago U. /Indiana U.

2007-06-01

144

Opening up optical fibres.  

PubMed

A unique optical fibre design is presented in this work: a laterally accessible microstructured optical fibre, in which one of the cladding holes is open to the surrounding environment and the waveguide core exposed over long lengths of fibre. Such a fibre offers the opportunity of real-time chemical sensing and biosensing not previously possible with conventional microstructured optical fibres, as well as the ability to functionalize the core of the fibre without interference from the cladding. The fabrication of such a fibre using PMMA is presented, as well as experimental results demonstrating the use of the fibre as a evanescent wave absorption spectroscopy pH sensor using the indicator Bromothymol Blue. PMID:19547546

Cox, Felicity M; Lwin, Richard; Large, Maryanne C J; Cordeiro, Cristiano M B

2007-09-17

145

Astroseismology in open clusters  

NASA Astrophysics Data System (ADS)

The surface oscillations of solar-like stars provide precious informations on their global characteristics (mass, composition) and structure. The open-clusters reveal particularly interesting in this respect. We have built stellar models of Hyades stars for different masses and plausible ages and compositions of this cluster. Several seismic quantities were subsequently evaluated. I will address the question of performances necessary to complete precise seismic observations for solar-like Hyades. Then I will present our prospective work in asteroseismology and I will show how the analysis of the collective seismic effects can improve our knowledge on these stars. For instance the relation between the acoustic radius of the inner radiative core and the effective temperature reveals extremely sensitive to the convective efficiency in the superadiabatic layers. This relation should allow to set constraints on convective efficiency and therefore on the hydrodynamical simulations of convection.

Piau, Laurent; Ballot, Jerome; Turck-Chieze, Sylvaine

2004-12-01

146

Virtual Open Heart Surgery  

NSDL National Science Digital Library

How does open heart surgery work? Without taking the time to get a formal medical degree, it can be quite hard to find out first-hand. Fortunately, this site from the Australian Broadcasting Company (ABC) takes you inside a virtual operating room to try your hand at performing this procedure. Visitors can look over the interactive Menu to first learn about the anatomy of this region of the body. It's a good place to start and users can proceed to look through the ten (simplified) steps to performing such a complicated operation. Along the way, visitors are given the opportunity to learn about the science behind each step and it's all quite fascinating. It's a great resource for budding scientists, medical professionals, and those who are generally curious about the human body.

147

An opening electromagnetic transducer  

NASA Astrophysics Data System (ADS)

Tubular solenoids have been widely used without any change since an electrical wire was discovered to create magnetic fields by Hans Christian Oersted in 1820 and thereby the wire was first coiled as a helix into a solenoid coil by William Sturgeon in 1823 and was improved by Joseph Henry in 1829 [see http://www.myetymology.com/encyclopedia/History_of_the_electricity.html; J. M. D. Coey, Magnetism and Magnetic Materials (Cambridge University Press, New York, 2010); and F. Winterberg, Plasma Phys. 8, 541553 (1996)]. A magnetic control method of C-shaped carrying-current wire is proposed, and thereby a new opening electromagnetic transducer evidently differing from the traditional tubular solenoid is created, capable of directly encircling and centering the acted objects in it, bringing about convenient and innovative electromagnetic energy conversion for electromagnetic heating, electromagnetic excitation, physical information capture, and electro-mechanical motion used in science research, industry, and even biomedical activities.

Sun, Yanhua; Kang, Yihua

2013-12-01

148

OpenStudio: An Open Source Integrated Analysis Platform; Preprint  

SciTech Connect

High-performance buildings require an integrated design approach for all systems to work together optimally; systems integration needs to be incorporated in the earliest stages of design for efforts to be cost and energy-use effective. Building designers need a full-featured software framework to support rigorous, multidisciplinary building simulation. An open source framework - the OpenStudio Software Development Kit (SDK) - is being developed to address this need. In this paper, we discuss the needs that drive OpenStudio's system architecture and goals, provide a development status report (the SDK is currently in alpha release), and present a brief case study that illustrates its utility and flexibility.

Guglielmetti, R.; Macumber, D.; Long, N.

2011-12-01

149

NASA Open Rotor Noise Research  

NASA Technical Reports Server (NTRS)

Owing to their inherent fuel burn efficiency advantage compared with the current generation high bypass ratio turbofan engines, there is resurgent interest in developing open rotor propulsion systems for powering the next generation commercial aircraft. However, to make open rotor systems truly competitive, they must be made to be acoustically acceptable too. To address this challenge, NASA in collaboration with industry is exploring the design space for low-noise open rotor propulsion systems. The focus is on the system level assessment of the open rotors compared with other candidate concepts like the ultra high bypass ratio cycle engines. To that end there is an extensive research effort at NASA focused on component testing and diagnostics of the open rotor acoustic performance as well as assessment and improvement of open rotor noise prediction tools. In this presentation and overview of the current NASA research on open rotor noise will be provided. Two NASA projects, the Environmentally Responsible Aviation Project and the Subsonic Fixed Wing Project, have been funding this research effort.

Envia, Ed

2010-01-01

150

MIT OpenCourseWare  

NSDL National Science Digital Library

With MIT OpenCourseWare, the Massachusetts Institute of Technology plans to make course materials for nearly all its undergraduate and graduate subjects available online, free of charge to anyone who cares to use them. An ambitious project created as part of the university's mission "to advance knowledge and education to best serve the nation and the world." MIT OpenCourseWare currently offers course materials for a wide range of subjects. Users should bear in mind that MIT OpenCourseWare is an informal learning venue only, not a degree or certificate-granting program.

2008-07-21

151

Open architecture controller activities in TEAM  

SciTech Connect

As part of its manufacturing initiative, TEAM is actively involved in open architecture controller activities. Within the TEAM community of members, TEAM is developing an open architecture controller requirements document and an open architecture controller application programming interface document. In addition, TEAM is also evaluating early open architecture controllers in a shop floor environment.

McCue, H.K.

1996-02-04

152

Open Session 353rd Meeting  

NSF Publications Database

... 1999 Meetings The Board APPROVED the Open Session minutes of the February 1999 and the March 1999 ... Items for July 1999 The Board APPROVED the Closed Session items for the July 1999 Board Meeting ...

153

Open Architecture SDR for Space.  

National Technical Information Service (NTIS)

This paper describes an open-architecture SDR (software defined radio) infrastructure that is suitable for space-based operations (Space-SDR). SDR technologies will endow space and planetary exploration systems with dramatically increased capability, redu...

2004-01-01

154

Microwave Open Resonators for Gyrotrons.  

National Technical Information Service (NTIS)

Weakly irregular waveguides which, under appropriate conditions, can be considered as open resonators are studied. Through the analysis of a variety of resonators, the influence of the cavity geometry on the longitudinal electric field distribution is dis...

J. J. Barroso, A. Montes

1986-01-01

155

Open Systems Approach to Supportability.  

National Technical Information Service (NTIS)

The open systems approach is both a technical approach to weapons systems engineering and a preferred business strategy that is becoming widely applied by manufacturers of large complex systems. Today, legacy systems continue to be developed with their ow...

A. G. Larson C. K. Banning J. F. Leonard

2002-01-01

156

Health Education by Open Broadcast.  

National Technical Information Service (NTIS)

This issue focuses on uses and techniques of radio for educational purposes in developing nations. Two health education projects are described which are utilizing open broadcasting to attract a mass audience of listeners not committed to a structured radi...

1976-01-01

157

OpenADR Open Source Toolkit: Developing Open Source Software for the Smart Grid  

SciTech Connect

Demand response (DR) is becoming an increasingly important part of power grid planning and operation. The advent of the Smart Grid, which mandates its use, further motivates selection and development of suitable software protocols to enable DR functionality. The OpenADR protocol has been developed and is being standardized to serve this goal. We believe that the development of a distributable, open source implementation of OpenADR will benefit this effort and motivate critical evaluation of its capabilities, by the wider community, for providing wide-scale DR services

McParland, Charles

2011-02-01

158

OpenMx: An Open Source Extended Structural Equation Modeling Framework  

ERIC Educational Resources Information Center

OpenMx is free, full-featured, open source, structural equation modeling (SEM) software. OpenMx runs within the "R" statistical programming environment on Windows, Mac OS-X, and Linux computers. The rationale for developing OpenMx is discussed along with the philosophy behind the user interface. The OpenMx data structures are introduced--these…

Boker, Steven; Neale, Michael; Maes, Hermine; Wilde, Michael; Spiegel, Michael; Brick, Timothy; Spies, Jeffrey; Estabrook, Ryne; Kenny, Sarah; Bates, Timothy; Mehta, Paras; Fox, John

2011-01-01

159

Open mushrooms: stickiness revisited  

NASA Astrophysics Data System (ADS)

We investigate mushroom billiards, a class of dynamical systems with sharply divided phase space. For typical values of the control parameter of the system ?, an infinite number of marginally unstable periodic orbits (MUPOs) exist making the system sticky in the sense that unstable orbits approach regular regions in phase space and thus exhibit quasi-regular behaviour for long periods of time. The problem of finding these MUPOs is expressed as the well-known problem of finding optimal rational approximations of a real number, subject to some system-specific constraints. By introducing a generalized mushroom and using properties of continued fractions, we describe for the first time a zero measure set of control parameter values ? in (0, 1) for which all MUPOs are destroyed and therefore the system is less sticky, leading to a different power law exponent for the Poincaré recurrence time distribution statistics. The open mushroom (billiard with a hole) is then considered in order to quantify the stickiness exhibited due to MUPOs and exact leading order expressions for the algebraic decay of the survival probability function P(t)\\sim {C}/t are calculated for mushrooms with triangular and rectangular stems. Numerical simulations are also performed which confirm our predictions for both sticky and less sticky mushrooms.

Dettmann, Carl P.; Georgiou, Orestis

2011-05-01

160

Opening the door to innovation.  

PubMed

Open innovation is the new buzz, with initiatives popping up left and right. Here, we give a personal perspective on a very successful, knowledge-driven innovation initiated in an academia- industry alliance, which culminated in technology platforms that enable the generation of therapeutic antibodies with novel properties. To start, we provide a general background on open innovation in the drug development field. PMID:24784437

Schuurman, Janine; Graus, Yvo F; Labrijn, Aran F; Ruuls, Sigrid; Parren, Paul Whi

2014-07-01

161

Broadband Internet: Net Neutrality versus Open Access  

Microsoft Academic Search

“Network neutrality” and “open access” are two policies designed to preserve openness on the Internet. Open access mandates openness of conduits (e.g. television cable and DSL) to service providers (e.g. America Online), while network neutrality mandates openness to advanced content (streaming video, interactive e-commerce, etc.). We develop a systems model with free entry and competition in all three industry segments

Christiaan Hogendorn

2006-01-01

162

Broadband Internet: net neutrality versus open access  

Microsoft Academic Search

“Network neutrality” and “open access” are two policies designed to preserve openness on the Internet. Open access mandates\\u000a openness of conduits (e.g. television cable and DSL) to intermediaries (e.g. America Online), while network neutrality mandates\\u000a openness to advanced content (streaming video, interactive e-commerce, etc.). We develop a systems model with free entry and\\u000a competition in all three industry segments (conduits,

Christiaan Hogendorn

2007-01-01

163

Concepts for Effective Facilitation of Open Groups  

Microsoft Academic Search

Despite a lack of literature on open groups, groups with open and changing membership certainly take place in practice. Some practices with open-ended and single-session groups, detailed in the literature, have relevance for open groups. Four concepts that can help workers address the unpredictable dynamics and diverse membership characteristic of open groups are planning and preparation, worker self-awareness, worker flexibility,

Hope Turner

2011-01-01

164

An Open Source Simulation System  

NASA Technical Reports Server (NTRS)

An investigation into the current state of the art of open source real time programming practices. This document includes what technologies are available, how easy is it to obtain, configure, and use them, and some performance measures done on the different systems. A matrix of vendors and their products is included as part of this investigation, but this is not an exhaustive list, and represents only a snapshot of time in a field that is changing rapidly. Specifically, there are three approaches investigated: 1. Completely open source on generic hardware, downloaded from the net. 2. Open source packaged by a vender and provided as free evaluation copy. 3. Proprietary hardware with pre-loaded proprietary source available software provided by the vender as for our evaluation.

Slack, Thomas

2005-01-01

165

Flow through openings in width constrictions  

USGS Publications Warehouse

A highway embankment across a stream channel may have one or several bridge openings. In 1953, the pattern of flow through a single opening was quantitatively described by C. E. Kindsvater, R. W. Carter, and H. J. Tracy. The present investigation of the flow pattern at constrictions with two to seven openings is a continuation of the earlier study. Laboratory experiments and the analysis were directed toward the development of methods for (a) computing discharge through multiple-opening constrictions, (b) apportioning a given total discharge among the several openings, and (c) predicting the backwater caused by the constriction. The division of flow among the openings was related to the relative area of each opening, and the relative velocity in the channel immediately upstream from each opening. On the basis of this relationship, the boundaries of the flow channel approaching each opening were established. The head-discharge and backwater characteristics of each opening were then analyzed separately. It is shown that the relations developed for the constriction with a single opening are applicable to each opening of a multiple-opening constriction once the boundaries of the separate flow channels have been established.

Davidian, Jacob; Carrigan, P. H., Jr.; Shen, John

1962-01-01

166

OpenEpi - Epidemiologic Calculators  

NSDL National Science Digital Library

This site, created by Andrew G. Dean, Roger A. Mir and Kevin Sullivan of Open Epidemiology.com, contains calculators for use in epidemiological calculations. There are modules that can be used online and open source modules that can be downloaded and altered. Some modules include 2x2 tables, an R by C table, proportions, dose-response and trend calculator, sample size, and generation of random numbers. This is a great resource for those interested in general statistics, social statistics, public health, or more specifically, epidemiology.

Dean, Andrew G.; Mir, Roger A.; Sullivan, Kevin

2009-02-09

167

Open Directory Project: Structural Engineering  

NSDL National Science Digital Library

The Structural Engineering website is part of the Netscape Communication Corporation Open Directory Project, which is helping to build "the largest human-edited directory on the web." Structural Engineering posts links to other websites about bridges that have been "selected by humans." The entries can be ordered by alphabet, by topic, or by popularity. A link at the bottom of the page takes you to a form for submitting a site and provides additional information on the Open Directory Project and how to become a volunteer editor.

168

OpenMP for Accelerators  

SciTech Connect

OpenMP [13] is the dominant programming model for shared-memory parallelism in C, C++ and Fortran due to its easy-to-use directive-based style, portability and broad support by compiler vendors. Similar characteristics are needed for a programming model for devices such as GPUs and DSPs that are gaining popularity to accelerate compute-intensive application regions. This paper presents extensions to OpenMP that provide that programming model. Our results demonstrate that a high-level programming model can provide accelerated performance comparable to hand-coded implementations in CUDA.

Beyer, J C; Stotzer, E J; Hart, A; de Supinski, B R

2011-03-15

169

Open Learning Initiative: Anatomy & Physiology  

NSDL National Science Digital Library

Do you fully comprehend how the human body functions? Unless one has a great deal of formal training, such comprehension can be quite difficult. This site from Carnegie Mellon University's Open Learning Initiative opens up new ways of looking at anatomy and physiology for lay people. This particular course focuses on several themes including the structure and function of the body, the levels of organization within the body, and homeostasis. There are fifteen units within this course and visitors can create a free account to keep track of their progress through each of these different areas.

2012-12-01

170

OOI's Cyberinfrastructure: An Opening  

NASA Astrophysics Data System (ADS)

The Ocean Observatories Initiative is a long-term, NSF-funded program to provide 25-30 years of sustained ocean measurements to study climate variability, ocean circulation and ecosystem dynamics, air-sea exchange, seafloor processes, and plate-scale geodynamics. The OOI will enable powerful new scientific approaches for exploring the complexities of Earth-ocean-atmosphere interactions, thereby accelerating progress toward the goal of understanding, predicting, and managing our ocean environment. The OOI can foster new discoveries that, in turn, move research in unforeseen directions. The OOI Cyberinfrastructure will connect and coordinate the operations of OOI marine components and data processes, to meet the objectives of the oceanographic research and education communities. The CI will let all users easily interact with deployed resources, access collected data, and apply those data to their specific research and educational needs. The CI is a free and open product that adopts innovative and flexible strategies to bring the oceans to users, any time, any place, on any suitable device. The OOI CI is dedicated to "using the latest computing technologies to solve the interoperability problem among vast amounts of heterogeneous geospatial data from various sources." OOI CI's charge is to be transformative, and its technologies and goals are just that (see URL). The Cyberinfrastructure integrates state-of-the-art and best-practice approaches to provide fully interoperable access to the widest possible collection of geospatial data. From the system-of-systems model of the planned observatories and the ingestion of data, models, and services; to the configurable, automated workflows producing real-time products, data curation and quality management strategies are supported to the fullest possible extent. How do we build a system to efficiently support 750 core instruments across numerous platform types, add as-yet unknown instruments during the operations phase, and support any number of processes and external data in the system throughout its 25+ years of operation? What key strategies must be adopted, architectural approaches applied, and technologies integrated to provide complete discovery, access, and use of the system and its data? What defines the critical characteristics expected of the core system, the complete system, and the transformative system? And how can this system be leveraged by multiple science users, programs, and organizations beyond its initial target functionality? We will present the CI team's best responses to these questions. The project is completing Release 2, two-thirds of the way to a fully public release, and halfway to the final system. The engagement of OOI marine operations and marine science teams prepares us to support marine operations, and the software will be applied to "real operations" very soon. Most of the fundamental marine and operational scenarios are in place at a basic level, and the capabilities have been laid out for a full suite of mature operations and science activities. From these beginnings, we offer technical, social, and strategic perspectives on the challenges and solutions in geoinformatics data systems, and ask "Where to from here?" Funding for OOI is provided by the National Science Foundation through a Cooperative Agreement with the Consortium for Ocean Leadership, which in turn funds the CI project.

Graybeal, J.; Ampe, T.; Arrott, M.; Chave, A. D.; Cressey, R.; Jul, S.; McPhail, T.; Meisinger, M.; Orcutt, J. A.; Peach, C. L.; Schofield, O.; Stocks, K.; Thomas, J.; Vernon, F.

2012-12-01

171

Open-Pit Metal Mining Grounding Systems.  

National Technical Information Service (NTIS)

The performance of electrical grounding systems in open pit metal mines is evaluated using techniques that are described thoroughly. The normal electrical distribution and grounding practices used in metallic open pit mines are reviewed and compared with ...

L. A. Morley A. M. Christman

1976-01-01

172

Open Rotor: New Option for Jet Engines  

NASA Video Gallery

NASA's Dale Van Zante describes how the open rotor propulsion system will be tested in a wind tunnel at NASA's Glenn Research Center. Open rotor aircraft engines use high-speed propellers and are c...

173

Open Source Intelligence (OSINT): Issues for Congress.  

National Technical Information Service (NTIS)

Open source information (OSINT) is derived from newspapers, journals, radio and television, and the Internet. Intelligence analysts have long used such information to supplement classified data, but systematically collecting open source information has no...

A. Cumming J. R. Best

2007-01-01

174

Open Source Intelligence 'OSINT': Issues for Congress.  

National Technical Information Service (NTIS)

Open source information (OSINT) is derived from newspapers, journals, radio and television, and the Internet. Intelligence analysts have long used such information to supplement classified data, but systematically collecting open source information has no...

A. Cumming R. Best

2008-01-01

175

Designing the OpenDoc human interface  

Microsoft Academic Search

This paper tells the story of the development of the human interface for OpenDoc, a large-scale, complex, cross- platform commercial development project at Apple Computer. OpenDoc was an ambitious four year design and development effort by Apple with IBM and other partners. The OpenDoc HI is a departure from traditional applications. This historical review highlights how we designed OpenDoc and

Dave Curbow; Elizabeth Dykstra-Erickson

1997-01-01

176

Open Source Software Development Process Modeling  

Microsoft Academic Search

This chapter draws attention to software process modeling for open source software development. It proposes a three-layered open source software development process model. Its ‘definitional’ and ‘generic’ levels specify the common features of all fully-fledged open source projects. Its’ specific’ level allows to describe fine-grained process model fragments characteristics of different open source projects. In this chapter, the specific level

Jacques Lonchamp

177

An Open Source Parametric Propeller Design Tool  

Microsoft Academic Search

An open source computational propeller\\/turbine design tool, the user-friendly open source MIT Propeller Vortex Lattice Lifting Line Program (OpenProp), is presented in this paper. This code has applications in propeller design for AUV and ROV thrusters as well as conventional propellers. The code is also being utilized for tidal turbine design. OpenProp is designed to be a fast parametric design

K. P. D'Epagnier; Hsin-Lung Chung; M. J. Stairway; R. W. Kimball

2007-01-01

178

The Four "R"s of Openness and ALMS Analysis: Frameworks for Open Educational Resources  

ERIC Educational Resources Information Center

A significant movement in education concerns the use of open educational resources. By "open" it is generally meant that the resource is available at no cost to others for adaptation and reuse in different contexts. However, "open" is not a simple dichotomy; rather, there is a continuum of openness. We discuss four separate aspects of reuse and…

Hilton, John, III; Wiley, David; Stein, Jared; Johnson, Aaron

2010-01-01

179

Opening our science: Open science and cyanobacterial research at the US EPA  

EPA Science Inventory

In this blog post we introduce the idea of Open Science and discuss multiple ways we are implementing these concepts in our cyanobacteria research. We give examples of our open access publications, open source code that support our research, and provide open access to our resear...

180

Newmarket Open Space Conservation Plan.  

National Technical Information Service (NTIS)

Although the term 'open space' evokes varied and different images for different people, this plan is an attempt to bring the diverse evocations together in one source for the purpose of directing nwnerous efforts within the political boundaries of the Tow...

2002-01-01

181

Open System Architecture for Drives  

Microsoft Academic Search

To meet the increasing demands of drive control in machine tools it is necessary to develop new and future-oriented drive control devices. In this paper we present a new platform for an Open System Architecture for Drives. This includes the specification of necessary hard- and software interfaces for the integration of new process & drive control, monitoring, diagnosis, and service

G. Pritschow; C. Kramer

2005-01-01

182

Project Open Door. Final Report.  

ERIC Educational Resources Information Center

The major purpose of Project Open Door was to design, develop, test, and disseminate a portable module for vocational educators and others to use with junior high school students in pre-vocational exploration free of sex stereotyping. The module produced contained a slide presentation with accompanying cassette tape and a leader's guide. An…

Verheyden-Hilliard, Mary Ellen

183

Open cycle traveling wave thermoacoustics  

Microsoft Academic Search

The concepts and basic operation of open cycle traveling wave thermoacoustic devices are discussed for the case of a simple thermoacoustic engine, where a steady flow of hot gas replaces the hot heat exchanger as the means for supplying heat to the engine. It has been determined that a large mean temperature difference must exist where the mean flow first

Nathan T. Weiland; Ben T. Zinn

2003-01-01

184

Opening up Library Automation Software  

ERIC Educational Resources Information Center

Throughout the history of library automation, the author has seen a steady advancement toward more open systems. In the early days of library automation, when proprietary systems dominated, the need for standards was paramount since other means of inter-operability and data exchange weren't possible. Today's focus on Application Programming…

Breeding, Marshall

2009-01-01

185

Understanding massively open online courses.  

PubMed

Massively open online courses (MOOCs) are an innovative delivery system for educational offerings. MOOCs have been hailed with optimism for making education accessible to many, but at the same time, they have been criticized for poor participant completion rates. Nurse educators are considering whether and how to use MOOCs; this column explains MOOCs and their advantages and disadvantages for nurse educators. PMID:24494660

Billings, Diane M

2014-02-01

186

Can Alastair Open Closed Doors?  

Microsoft Academic Search

In answering a cry for help from the Foreign Correspondents' Club of Japan I found myself in the unexpected position of becoming a temporary spin-doctor for Alastair Campbell. My task was to publicise the action of the British government in granting overseas journalists access to the political correspondents' lobby at Westminster. News of Campbell's unilateral decision to open up Downing

Nicholas Jones

2003-01-01

187

"Closed-open" arterial embolectomy.  

PubMed

Peroperative evaluation of the success of thromboembolectomy is achieved with a technique that employs interrupted horizontal mattress sutures. Angled traction on the sutures functionally closes the transverse arteriotomy while restoration of circulation is assessed. The arteriotomy may be opened for repassing embolectomy catheters by relieving the traction; if circulation is satisfactory the sutures are tied. PMID:3510476

Andros, G; Harris, R W; Dulawa, L B; Oblath, R W

1986-01-01

188

Open surgery for hip impingement.  

PubMed

Mechanical impingement of the proximal femur against the acetabular rim is now recognized as a common cause of labral tears and degenerative changes in the hip. Open surgery is successful in treating this condition if damage to the articular cartilage surface is minimal. PMID:19229147

Norton, Mark; Fern, Edwin D; Williams, Mark

2009-02-01

189

Towards an Interoperable Open GIS  

Microsoft Academic Search

The number of geo-science applications has been ever increasing over the last decades. Most of them, however, do not provide required level of data and systems integration and tend to be architecturally closed, monolithic, and costly environments. In this paper we present our approach to design and development of an open component-based Geographical Information System (GIS) architecture. The overall goal

Andreas Bergmann; Martin Breunig; Armin B. Cremers; Serge Shumilov

2000-01-01

190

The Open University in America.  

ERIC Educational Resources Information Center

This catalog describes audiovisual format courses produced by the Open University of Great Britain and presently available in the United States. The courses are: (1) Art and Environment; (2) Environmental Control and Public Health; (3) History of Architecture and Design 1890-1939; (4) History of Mathematics; (5) International Politics and Foreign…

Nebraska Univ., Lincoln. Great Plains National Instructional Television Library.

191

Dossier: Open and Distance Learning.  

ERIC Educational Resources Information Center

This magazine addresses diverse educational issues in different parts of the world. Articles in this issue are: "Education for All: Governments Must Do Much More to Make Schooling Accessible for All Children" (G. Machel and N. Mandela); "Afghanistan: Education Opens Up New Perspective"; "South Korea: Behind the Facade" (W. van der Schaaf);…

van Leeuwen, Fred, Ed.

2002-01-01

192

Perspectives on Open Source Software.  

National Technical Information Service (NTIS)

Open source software (OSS) is emerging as the software community's next 'silver bullet' and appears to be playing a significant role in the acquisition and development plans of the Department of Defense (DoD) and industry. Yet, as with all previous silver...

S. Hissam C. B. Weinstock D. Plakosh J. Asundi

2001-01-01

193

Open issues in RFID security  

Microsoft Academic Search

RFID security is a relatively new research area. Within less than a decade, a large number of research papers dealing with security issues of RFID technology have appeared. In this paper we attempt to summarize current research works in the field of RFID security and discuss some of their open issues. Firstly, we outline the security threats to RFID, then

Dang Nguyen Duc; Hyunrok Lee; Divyan M. Konidala; Kwangjo Kim

2009-01-01

194

Open File: Professionalism in Teaching.  

ERIC Educational Resources Information Center

This theme issue focuses on professionalism in teaching. It begins with an article in Viewpoints/Controversies titled "A Renewed Sense for the Purposes of Schooling: The Challenges of Education and Social Cohesion in Asia, Africa, Latin America, Europe, and Central Asia" (Stephen P. Heyneman; Sanja Todoric-Bebic). In Open File: Professionalism in…

Hargreaves, Andy, Ed.; Lo, Leslie N. K., Ed.

2000-01-01

195

The minimally invasive open pyeloplasty  

Microsoft Academic Search

BackgroundThe dismembered pyeloplasty is the operation of choice for ureteropelvic junction obstruction (UPJO). Recently, with the advent of improved minimally invasive techniques and equipment, laparoscopic dismembered pyeloplasty has gained popularity. We present our experience with a minimally invasive open pyeloplasty.

Job K. Chacko; Martin A. Koyle; Gerald C. Mingin; Peter D. Furness

2006-01-01

196

SPORE Award: Open Source Physics  

NSDL National Science Digital Library

Science essay describing the work of the Open Source Physics Project published in conjunction with the AAAS awarding the OSP Project a Science Prize for Online Resources in Education (SPORE) for its development of online tools that bring interactive computer-based modeling to students at many levels.

Christian, Wolfgang; Franciscouembre; Barbato, Lyle

2011-12-09

197

Health Education by Open Broadcast.  

ERIC Educational Resources Information Center

This issue focuses on uses and techniques of radio for educational purposes in developing nations. Two health education projects are described which are utilizing open broadcasting to attract a mass audience of listeners not committed to a structured radio education program. Kenya's Swahili language radio serial, "Giving Birth and Caring for your…

ICIT Report, 1976

1976-01-01

198

Jealousy in sexually open marriages  

Microsoft Academic Search

One hundred twenty-five men and 125 women, all Dutch and mostly liberal middle-class, responded to a series of scales measuring present, past, and anticipated jealousy as well as a variety of variables thought to be correlated with jealousy. All respondents were or had been in a sexually open marriage in which one or both partners had had an extramarital involvement.

Bram Buunk

1981-01-01

199

Diffraction of water waves (opening)  

NSDL National Science Digital Library

This simulation allows the user to investigate the diffraction pattern due to opening in a ripple tank. The user can change the wavelength of the waves, and the slit width. This is a part of the "Learn Physics using Java" library of simulations.

Ng, Chiu-King

2010-04-25

200

Open Learning in Higher Education.  

ERIC Educational Resources Information Center

Reports on projects in British Universities which have focused on open learning. Establishes the main features of the learning environments created; results of the case study innovations; and management of change issues and how these may be addressed. A table presents details of the studies. (AEF)

Lewis, Roger

1997-01-01

201

Open-celled polyurethane foam  

NASA Technical Reports Server (NTRS)

Open-celled polyurethane foam has a density of 8.3 pounds per cubic foot and a compressive strength of 295 to 325 psi. It is useful as a porous spacer in layered insulation and as an insulation material in vacuum tight systems.

Russell, L. W.

1970-01-01

202

Technical architecture for RF open system realization  

Microsoft Academic Search

RF functions can be effectively realized as open systems. Application of open system architecture (OSA) principles must be done at the function level, encompassing both software and hardware. Building upon the generic open architecture foundation, the additional layers necessary for RF function realization have been defined. The RF technical architecture is described with reference model that identifies the functional partitioning

C. E. Milton; C. D. Russell; J. Schroeder

1999-01-01

203

Community College Consortium for Open Educational Resources  

NSDL National Science Digital Library

The Community College Consortium for Open Educational Resources (CCCOER) is a joint effort by the Foothill-De Anza Community College District, the League for Innovation in the Community College and many other community colleges and university partners to develop and use open educational resources (OER) and especially open textbooks in community college courses.

2009-11-17

204

Periodicals Price Survey 2008: Embracing Openness  

ERIC Educational Resources Information Center

Evidence for open access as an emergent, global state of mind is everywhere. The "New York Times" went "open" last September, and the "Wall Street Journal" is slated to follow. Increasingly, scholarly communities are breaking with tradition and calling for the open sharing of research, software, and data. Amongst these global initiatives is the…

Van Orsdel, Lee C.; Born, Kathleen

2008-01-01

205

Open Learning. CET Information Sheet No. 5.  

ERIC Educational Resources Information Center

Beginning with a definition of open learning as flexible learning systems in which people study how, when, and where it suits them, this summary reports on activities of the Council of Educational Technology (CET) that are designed to promote open learning systems; explains different forms of open learning systems, such as flexistudy, learning by…

Council for Educational Technology, London (England).

206

Mining from open answers in questionnaire data  

Microsoft Academic Search

Surveys are an important part of marketing and customer relationship management, and open answers (i.e., answers to open questions) in particular may contain valuable information and provide an important basis for making business decisions. We have developed a text mining system that provides a new way for analyzing open answers in questionnaire data. The product is able to perform the

Hang Li; Kenji Yamanishi

2001-01-01

207

Tachyon effective actions in open string theory  

Microsoft Academic Search

We argue that the Dirac–Born–Infeld (DBI) action coupled to a tachyon, that is known to reproduce some aspects of open string dynamics, can be obtained from open string theory in a certain limit, which generalizes the limit leading to the usual DBI action. This helps clarify which aspects of the full open string theory are captured by this action.

David Kutasov; Vasilis Niarchos

2003-01-01

208

Managing Open Learning. Management in Colleges Series.  

ERIC Educational Resources Information Center

This guide, which is aimed primarily at those responsible for providing learning opportunities within further education in England and Wales, deals with managing open learning. Addressed in the individual chapters of the guide are the following topics: the nature of open learning; the production of learning materials; the impact of open learning…

Birch, Derek W.; Latcham, Jack

209

Permission granted: open licensing for educational resources  

Microsoft Academic Search

Open licences are critical for defining Open Educational Resources. The goal of this article is to explain the logic of open licensing to teachers, funders, and educational policy?makers – to explain the relatively simple but vital considerations that are necessary to build this global educational commons of free learning material. In particular, we will stress the importance of ensuring that

Ahrash N. Bissell

2009-01-01

210

The Butterfly Effect of Small Open Economies  

Microsoft Academic Search

The rational expectations equilibrium of a small open economy can be subject to indeterminacy if foreign monetary policy does not satisfy the Taylor principle. We study the implications of foreign-induced indeterminacy for the conduct of monetary policy in a small open economy. In the canonical sticky-price small open economy model, we find that indeterminacy arising in the large economy can

Jarkko Jääskelä; Mariano Kulish

2007-01-01

211

Sunday Opening in UK Public Libraries  

ERIC Educational Resources Information Center

This paper presents a summary of the first survey of public library authorities in the UK to explore Sunday opening, undertaken in 2007 as part of the Clore Leadership Programme. It provides a snapshot of Sunday opening practice, set against a context of societal, economic, and policy developments, and examines whether Sunday opening furthers the…

Moore, Chris; Creaser, Claire

2010-01-01

212

Openness and Inflation: Theory and Evidence  

Microsoft Academic Search

Because unanticipated monetary expansion leads to real exchange rate depreciation and because the harms of real depreciation are greater in more open economies, the benefits of unanticipated expansion are decreasing in the degree of openness. Models in which the absence of precommitment in monetary policy leads to excessive inflation, therefore, predict lower average inflation in more open economies. This paper

David Romer

1993-01-01

213

Permission Granted: Open Licensing for Educational Resources  

ERIC Educational Resources Information Center

Open licences are critical for defining Open Educational Resources. The goal of this article is to explain the logic of open licensing to teachers, funders, and educational policy-makers--to explain the relatively simple but vital considerations that are necessary to build this global educational commons of free learning material. In particular,…

Bissell, Ahrash N.

2009-01-01

214

Open Geodata Initiative for Romania  

NASA Astrophysics Data System (ADS)

The concept of open data access is a very important topic nowadays. The concept assumes that all data collected or generated by public sector bodies (excepting personal data and data protected under existing privacy protection or accessibility rules) is made publicly accessible in commonly-used, machine-readable formats and can be re-used for any purpose, commercial or non-commercial. Governmental agencies are considered to be the most significant data owners and providers in modern societies. The sheer volume and wealth of this data makes apparent the potential benefits of reusing, combining, and processing governmental data. Even though metadata (information about the data) is sometimes published, administrations typically express reluctance to making their data available, for various reasons, cultural, political, legal, institutional and technical. The governmental spatial information (also called geospatial data, georeferenced data or geodata) producers in Romania are no exception -with the additional situation that even metadata is not usually available. Starting from 2013 a joint program between a Swiss partner (The Swiss Federal Institute of Technology ETH- Zurich - Institute of Cartography and Geoinformation) and a Romanian partner (Technical University of Civil Engineering - UTCB) is developed in order to establish a new approach on the open geodata topic. The main objective of the project GEOIDEA.RO (GEodata Openness Initiative for Development and Economic Advancement in ROmania) is to improve the scientific basis for open geodata model adoption in Romania. Is our believe that publishing government geodata in Romania over the Internet,under an open license and in a reusable format can strengthen citizen engagement and yield new innovative businesses, bringing substantial social and economic gains.

Craciunescu, Vasile; Iosifescu, Ionut; Ilie, Codrina Maria; Gaitanaru, Dragos; Radu Gogu, Constantin; Hurni, Lorenz

2013-04-01

215

The Open Course: Through the Open Door--Open Courses as Research, Learning, and Engagement  

ERIC Educational Resources Information Center

Over the last decade, as educators have increasingly experimented with social technologies and interactive pedagogies, the concept of a "course" has been significantly challenged. In particular, questions have arisen as to the key value of the course in the educational system. The numerous high-profile open courseware initiatives from elite…

Cormier, Dave; Siemens, George

2010-01-01

216

Open access: changing global science publishing  

PubMed Central

The article reflects on open access as a strategy of changing the quality of science communication globally. Successful examples of open-access journals are presented to highlight implications of archiving in open digital repositories for the quality and citability of research output. Advantages and downsides of gold, green, and hybrid models of open access operating in diverse scientific environments are described. It is assumed that open access is a global trend which influences the workflow in scholarly journals, changing their quality, credibility, and indexability.

Gasparyan, Armen Yuri; Ayvazyan, Lilit; Kitas, George D.

2013-01-01

217

"Open" minimally invasive surgery in pediatric urology.  

PubMed

Minimally invasive surgery (MIS) offers alternative operative approaches to standard open surgical techniques. However, MIS has been defined primarily as substituting laparoendoscopic alternatives for the traditional open surgical approach. The concept of MIS methodology may also be applied to open surgery in an effort to decrease incision size, potentially reduce morbidity and enhance convalescence, without compromising 'gold standard' outcomes. Pediatric urological applications of open MIS include pediatric renal surgery, ureteral reimplantation, ureteral surgery, inguinal-scrotal and genital surgery. A thorough review of the pediatric urology literature was performed and studies were identified describing open MIS, including outcomes and complications. PMID:19297251

Hidalgo-Tamola, Josephine; Shnorhavorian, Margarett; Koyle, Martin A

2009-06-01

218

Previous Open Rotor Research in the US  

NASA Technical Reports Server (NTRS)

Previous Open Rotor noise experience in the United States, current Open Rotor noise research in the United States and current NASA prediction methods activities were presented at a European Union (EU) X-Noise seminar. The invited attendees from EU industries, research establishments and universities discussed prospects for reducing Open Rotor noise and reviewed all technology programs, past and present, dedicated to Open Rotor engine concepts. This workshop was particularly timely because the Committee on Aviation Environmental Protection (CAEP) plans to involve Independent Experts in late 2011 in assessing the noise of future low-carbon technologies including the open rotor.

VanZante, Dale

2011-01-01

219

Open Source, Open Standards, and Health Care Information Systems  

PubMed Central

Recognition of the improvements in patient safety, quality of patient care, and efficiency that health care information systems have the potential to bring has led to significant investment. Globally the sale of health care information systems now represents a multibillion dollar industry. As policy makers, health care professionals, and patients, we have a responsibility to maximize the return on this investment. To this end we analyze alternative licensing and software development models, as well as the role of standards. We describe how licensing affects development. We argue for the superiority of open source licensing to promote safer, more effective health care information systems. We claim that open source licensing in health care information systems is essential to rational procurement strategy.

2011-01-01

220

Open Source and Open Access Resources for Quantum Physics Education  

NSDL National Science Digital Library

Quantum mechanics is both a topic of great importance to modern science, engineering, and technology, and a topic with many inherent barriers to learning and understanding. Computational resources are vital tools for developing deep conceptual understanding of quantum systems for students new to the subject. This article outlines two projects that are taking an open source/open access approach to create and share teaching and learning resources for quantum physics. The Open Source Physics project provides program libraries, programming tools, example simulations, and pedagogical resources for instructors wishing to give a rich experience to their students. These simulations and student activities are, in turn, being integrated into a world-wide collection of teaching and learning resources available through the Quantum Exchange, a part of the ComPADRE Portal to the National Science Digital Library. Both of these projects use technologies that encourage community development and collaboration. Using these tools, faculty can create learning experiences, share and discuss their content with others, and combine resources in new ways. Examples of the available content and tools are given, along with an introduction to accessing and using these resources.

Belloni, Mario; Christian, Wolfgang; Mason, Bruce

2010-10-14

221

Open Source and Open Access Resources for Quantum Physics Education  

NSDL National Science Digital Library

Quantum mechanics is both a topic of great importance to modern science, engineering, and technology, and a topic with many inherent barriers to learning and understanding. Computational resources are vital tools for developing deep conceptual understanding of quantum systems for students new to the subject. This article outlines two projects that are taking an open source/open access approach to create and share teaching and learning resources for quantum physics. The Open Source Physics project provides program libraries, programming tools, example simulations, and pedagogical resources for instructors wishing to give a rich experience to their students. These simulations and student activities are, in turn, being integrated into a world?wide collection of teaching and learning resources available through the Quantum Exchange, a part of the ComPADRE Portal to the National Science Digital Library. Both of these projects use technologies that encourage community development and collaboration. Using these tools, faculty can create learning experiences, share and discuss their content with others, and combine resources in new ways. Examples of the available content and tools are given, along with an introduction to accessing and using these resources.

Belloni, Mario; Christian, Wolfgang; Mason, Bruce

2008-04-28

222

The Seattle Open Housing Campaign  

NSDL National Science Digital Library

Many cities struggled with the issue of open housing in the 1950s and 1960s, and Seattle was a contested site in the struggle for civil rights. Until 1968, it was legal to discriminate against minorities in Seattle when renting apartments or selling real estate. This fine website created by the Seattle Municipal Archives explores the history of the open housing campaign through a range of primary documents, including photographs, legal documents, and so on. The Table of Contents provides a nice introduction to the subject, along with thematic areas such as Restrictive Covenants and Years of Ferment: 1964-1967. Visitors would do well to start with the Restrictive Covenants section, as it explains the role of these clauses in keeping minorities out of certain neighborhoods.

2012-05-11

223

Nonequilibrium thermodynamics for open systems  

NASA Astrophysics Data System (ADS)

We develop the general equation for the nonequilibrium reversible-irreversible coupling (GENERIC) framework of nonequilibrium thermodynamics for open systems. A clear distinction between bulk and boundary contributions to the Poisson and dissipative brackets employed to generate reversible and irreversible contributions to time evolution from energy and entropy allows us to formulate the bulk equations as well as the exchange and interaction with the environment directly. The full brackets keep all the structure and hence the predictive power of the original GENERIC for isolated systems. The straightforward procedure is illustrated for hydrodynamics of open systems. Boltzmann’s kinetic equation is discussed as a further example. In the Appendix, the thermodynamic treatment of surface excess variables at walls and their role in boundary conditions for the bulk variables is exemplified for a diffusion cell.

Öttinger, Hans Christian

2006-03-01

224

Open Studio: The Arts Online  

NSDL National Science Digital Library

Open Studio: The Arts Online, an extensive network of technology training resources, provides artists and nonprofit arts organizations with Web-based tools and models to enhance online publication, communication, and creative expression. Recently relaunched by the Benton Foundation and the National Endowment for the Arts (NEA), the Open Studio Website features a directory of connections to regional training and public access sites nationwide. In addition, the Website includes a Toolkit, Digital Canvas, and moderated discussion lists. The Toolkit offers a collection of online training curricula, tutorials, and materials. Digital Canvas is a new electronic magazine devoted to communication technology and the arts. And in the Join the Discussion section, several public fora permit participants to share "lessons learned and best practices" related to the use of the Internet in an artistic, educational environment. Note: users must establish a free user ID and password to participate in the discussions.

1999-01-01

225

Evaporation from open microchannel grooves.  

PubMed

The evaporation of water from open u-shaped microchannel grooves was investigated with particular emphasis on the roles of channel width and air flow conditions. Given the small dimensions of the microchannels, all measurements were conducted in a range where convection and diffusion are of equal importance and known correlations for the calculation of mass transfer coefficients cannot be applied. The evaporation rates were measured using a new optical method and a gravimetric method. Both measurement methods yielded mass transfer coefficients that are in agreement with each other. The observed relation between mass transfer coefficient, air velocity and channel width vastly differs from the predictions obtained from macroscopic structures. With respect to diagnostic devices we conclude that analyte concentration in an open microchannel groove strongly increases even within short times due to the evaporation process and we show that wider channels are more favourable in terms of minimizing the relative evaporation rate. PMID:24345870

Kachel, Sibylle; Zhou, Ying; Scharfer, Philip; Vran?i?, Christian; Petrich, Wolfgang; Schabel, Wilhelm

2014-02-21

226

NCI Shady Grove Now Open  

Cancer.gov

NCI’s new location, NCI Shady Grove, is open at 9609 Medical Center Drive in Rockville, MD. While NCI's clinical program remains on the NIH campus in Bethesda, NCI Shady Grove will accommodate approximately 2,450 administrative and program staff who previously occupied Executive Plaza and Helgerman Court buildings in Rockville. Offices at NCI started moving into the new building in December 2012 and the move will be completed within six months.

227

Open Source and Viral Marketing  

Microsoft Academic Search

ABSTRACT Global competition on the Internet marketplace requires thorough planning and careful investment of capital. Start-up companies,with a limited budget need to reduce cost wherever feasible. Eliminating license costs by using Open Source Software is a big saving for a company,and viral marketing has become,the number,one option to dynamically create brand awareness. The power of online influence, namely, „word of

John-robert Skrob

228

Open globe injuries in children  

Microsoft Academic Search

Background: Eye injuries are the leading cause of monocular blindness in children. At present, however, only limited follow-up studies\\u000a exist. Methods: The files of 38 consecutive patients aged 16 years or younger who had been treated for open globe injuries were examined.\\u000a The type of injury was classified and the severity of injury was categorized in four grades.??Results: Our series

Claudia Jandeck; Ulrich Kellner; Norbert Bornfeld; Michael H. Foerster

2000-01-01

229

Open-Ended Math Problems  

NSDL National Science Digital Library

An eight-month slate of open-ended problems for middle school students to solve in preparation for standardized testing. The authors have composed and selected problems that lend themselves to multiple solution paths, and then organized them into three levels of difficulty and the five strands from the Philadelphia math standards: number theory; measurement; geometry; patterns, algebra, and functions; data, statistics, and probability. Possible answers and rubrics for assessment available.

Forum, Math; Gwenn Holtz And Mary Lee Malen, Levering S.

2000-01-01

230

NEW Opening of Term Event  

Microsoft Academic Search

The opening of term dinner has been replaced by a new event which features food and beverage stations. Join colleagues for a casual marche-style event to celebrate the start of a new academic year and welcome the new members of our Brock community. The event takes place on Wednesday, Aug. 31, from 4 to 6:30 p.m. in the Lowenberger Residence

Kevin Kee; Tom Goldspink

231

Open-Economy Inflation Targeting  

Microsoft Academic Search

The paper examines inflation targeting in a small open economy with forward-looking aggregate supply and demand with microfoundations, and with stylised realistic lags in the different monetary-policy transmission channels. The paper compares strict and flexible targeting of CPI and domestic inflation and inflation-targeting reaction functions and the Taylor rule. Flexible CPI-inflation targeting does not only limit the variability of CPI

Lars E. O. Svensson

1998-01-01

232

Open-economy inflation targeting  

Microsoft Academic Search

The paper examines inflation targeting in a small open economy with forward-looking aggregate supply and demand with microfoundations, and with stylized realistic lags in the different monetary-policy transmission channels. The paper compares strict and flexible targeting of CPI and domestic inflation, and inflation-targeting reaction functions and the Taylor rule. Flexible CPI-inflation targeting does not limit the variability of CPI inflation

Lars E. O. Svensson

2000-01-01

233

ORC-OpenMP: An OpenMP Compiler Based on ORC  

Microsoft Academic Search

\\u000a This paper introduces a translation and optimization framework for OpenMP, based on the classification of OpenMP translation\\u000a types. And an open source OpenMP compiler, which implements this framework is also introduced as a high performance research\\u000a platform for Linux\\/IA-64. Different from other open source OpenMP compilation system, this compiler has the following characteristics:\\u000a First, it’s integrated into the backend optimization

Yongjian Chen; Jianjiang Li; Shengyuan Wang; Dingxing Wang

2004-01-01

234

Perilous terra incognita-open-access journals.  

PubMed

The author focuses on a new rapidly spreading practice of publication in open-access journals. The pros and cons of open-access journals are discussed. Publishing in these journals may be cost prohibitive for educators and junior faculty members. Some authors may be lured by the ease of publishing in open-access journals (and their, at times, inflated self-description, e.g., "international", "scientific"), and their possibly valuable contributions will escape the attention of Academic Psychiatry readership in the vast sea of open-access journals. The readership may be flooded with a large number of low-quality articles (maybe not even properly peer-reviewed) from open-access journals. It may take some time to sort out what is and what is not relevant and useful. Open-access publishing represents a problematic and controversial practice and may be associated with a conflict of interest for the editors and publishers of these journals. PMID:24519801

Balon, Richard

2014-04-01

235

Free for All: Open Source Software  

ERIC Educational Resources Information Center

Open source software has become a catchword in libraryland. Yet many remain unclear about open source's benefits--or even what it is. So what is open source software (OSS)? It's software that is free in every sense of the word: free to download, free to use, and free to view or modify. Most OSS is distributed on the Web and one doesn't need to…

Schneider, Karen

2008-01-01

236

Surgical Navigation in the Open MRI  

Microsoft Academic Search

\\u000a The introduction of MRI into neurosurgery has opened multiple avenues, but also introduced new challenges.\\u000a \\u000a The open-configuration intraoperative MRI installed at the Brigham and Women’s Hospital in 1996 has been used for more than\\u000a 500 open craniotomies and beyond 100 biopsies. Furthermore the versatile applicability, employing the same principles, is\\u000a evident by its frequent use in other areas of the

A. Nabavi; D. T. Gering; D. F. Kacher; I. F. Talos; W. M. Wells; R. Kikinis; P. Mc L. Black; F. A. Jolesz

237

Automatic Multilevel Parallelization Using OpenMP  

NASA Technical Reports Server (NTRS)

In this paper we describe the extension of the CAPO (CAPtools (Computer Aided Parallelization Toolkit) OpenMP) parallelization support tool to support multilevel parallelism based on OpenMP directives. CAPO generates OpenMP directives with extensions supported by the NanosCompiler to allow for directive nesting and definition of thread groups. We report some results for several benchmark codes and one full application that have been parallelized using our system.

Jin, Hao-Qiang; Jost, Gabriele; Yan, Jerry; Ayguade, Eduard; Gonzalez, Marc; Martorell, Xavier; Biegel, Bryan (Technical Monitor)

2002-01-01

238

OpenEI: Datasets in the OpenEnergyInfo Data Repository  

DOE Data Explorer

The Open Energy Information initiative (OpenEI) is a platform to connect the world's energy data. It is a linked open data platform bringing together energy information to provide improved analyses, unique visualizations, and real-time access to data. OpenEI follows guidelines set by the White House Open Government Initiative , which is focused on transparency, collaboration, and participation. OpenEI strives to provide open access to this energy information, with the ultimate goal of spurring creativity and driving innovation in the energy sector.[Copied from the OpenEI Wiki main page]. It features a wiki, a blog, a list of information gateways, and a browsing list of deposited data sets.

239

The OpenMP Memory Model  

SciTech Connect

The memory model of OpenMP has been widely misunderstood since the first OpenMP specification was published in 1997 (Fortran 1.0). The proposed OpenMP specification (version 2.5) includes a memory model section to address this issue. This section unifies and clarifies the text about the use of memory in all previous specifications, and relates the model to well-known memory consistency semantics. In this paper, we discuss the memory model and show its implications for future distributed shared memory implementations of OpenMP.

Hoeflinger, J P; de Supinski, B R

2005-06-01

240

Pulsed power compression by plasma opening switch  

NASA Astrophysics Data System (ADS)

Inductive-energy-storage pulsed experiments using plasma opening switches have been carried out on a pulsed power generator (REIDEN IV-H). The plasma opening switch is an opening switch which operates on a nanosecond timescale. The experimental data show that the impedance of the switch increased up to 200 omega, a high voltage (6.4MV) and short pulse width (10nsec) output are obtained. The comparison between experimental data and analytic calculations indicates that the faster opening of the switch operation is obtained by increasing the plasma injection velocity and the self magnetic pressure effect mainly affects the final stage of the switch operation.

Yugami, N.; Miyamoto, S.; Fujita, H.; Ozaki, T.; Akiba, T.; Imasaki, K.; Nakai, S.; Yamanaka, C.

1985-10-01

241

Monitoring of Open Star Clusters  

NASA Astrophysics Data System (ADS)

Star clusters especially a compact ones (with diameter of few to ten arcmin) are suitable targets to search of light variability for orchestera of stars by means of ordinary Casegrain telescope plus CCD system. A special patroling with short time-fixed exposures and mmag accuracy could be used also to study of stellar variability for group of stars simultaneously. The extra-solar planet transit events detection might be as a by-product of a long-term monitoring of compact open clusters as well. We present the program of open star clusters monitoring with Zeiss 1 meter RCC telescope of Maidanak observatory(Uzbekistan) has been automated recently. In combination with quite good seeing at this observatory (see, e.g., Sarazin, M. 1999, URL http://www.eso.org/gen-fac/pubs/astclim/) the automatic telescope equipped with large-format (2KX2K) CCD camera AP-10 available will allow to collect homogenious time-series for analysis. We already started this program in 2001 and had a set of patrol observations with Zeiss 0.6 meter telescope and AP-10 camera in 2003. 7 compact open clusters in the Milky Way (NGC 7801, King1, King 13, King18, King20, Berkeley 55, IC 4996) have been monitored for stellar variability and some results of photometry will be presented. A few interesting variables were discovered and dozens were suspected for variability to the moment in these clusters for the first time. Some of them show the periodic variability and probably might be the eclipsing binaries. It is also shown how observations like these could feasibly be used to look for exo-planet search.

Hojaev, A. S.; Semakov, D. G.

2007-08-01

242

OpenOrb: Open-source asteroid orbit computation software including statistical ranging  

Microsoft Academic Search

We are making an open-source asteroid orbit computation software package called OpenOrb publicly available. OpenOrb is built on a well-established Bayesian inversion theory, which means that it is to a large part complementary to orbit-computation packages currently available. In particular, OpenOrb is the first package that contains tools for rigorously estimating the uncertainties resulting from the inverse problem of computing

Mikael Granvik; Jenni Virtanen; Dagmara Oszkiewicz; Karri Muinonen

2009-01-01

243

Analysis of Activity in the Open Source Software Development Community  

Microsoft Academic Search

Open Source Software is computer software for which the source code is publicly open for inspection, modifica- tion, and redistribution. While research of a few, large, successful projects have provided insights into the nature and practices of the open source software community; it still leaves open the question about the thousands of other open source projects which are neither large

Scott Christley; Greg Madey

2007-01-01

244

Management of the open abdomen.  

PubMed

The open abdomen has become the standard of care in damage-control procedures, the management of intra-abdominal hypertension, and in severe intra-abdominal sepsis. This approach has saved many lives but has also created new problems, such as severe fluid and protein loss, nutritional problems, enteroatmospheric fistulas, fascial retraction with loss of abdominal domain, and development of massive incisional hernias. Early definitive closure is the basis of preventing or reducing the risk of these complications. The introduction of new techniques and materials for temporary and subsequent definitive abdominal closure has improved outcomes in this group of patients. PMID:24267502

Demetriades, Demetrios; Salim, Ali

2014-02-01

245

Macroeconomics in an open economy.  

PubMed

The customary treatment of national economies as closed and self-contained must be substantially modified to allow for those economies that typically trade goods, services, and securities with other countries in increasing volume. Open economy macroeconomics is essential to understanding the major events of the U.S. economy over the past half dozen years. Both the sharp rise in the dollar and the unprecedentedly large U.S. trade deficit are linked to the U.S. budget deficit, as is the drop in the rate of inflation. PMID:17756868

Cooper, R N

1986-09-12

246

Laser acceleration with open waveguides  

SciTech Connect

A unified framework based on solid-state open waveguides is developed to overcome all three major limitations on acceleration distance and hence on the feasibility of two classes of laser acceleration. The three limitations are due to laser diffraction, acceleration phase slippage, and damage of waveguide structure by high power laser. The two classes of laser acceleration are direct-field acceleration and ponderomotive-driven acceleration. Thus the solutions provided here encompass all mainstream approaches for laser acceleration, either in vacuum, gases or plasmas.

Xie, Ming

1999-03-01

247

Professional usability in open source projects: GNOME, OpenOffice.org, NetBeans  

Microsoft Academic Search

Working as a usability professional in the open source arena is a challenging task. The decentralized and engineering-driven approach of open source projects can be at odds with corporate processes and usability engineering methodologies. Nonetheless, there is great potential for large corporations to contribute to open source projects. Providing usability know-how that leads to usable and useful products is a

Calum Benson; Matthias Muller-Prove; Jiri Mzourek

2004-01-01

248

75 FR 56920 - Express Mail Open and Distribute and Priority Mail Open and Distribute  

Federal Register 2010, 2011, 2012, 2013

...POSTAL SERVICE 39 CFR Part 111 Express Mail Open and Distribute and Priority...257, Tag 267, or Label 257S, on all Express Mail[supreg] Open and Distribute containers...proposes to revise the service commitment for Express Mail Open and Distribute as a...

2010-09-17

249

75 FR 72686 - Express Mail Open and Distribute and Priority Mail Open and Distribute  

Federal Register 2010, 2011, 2012, 2013

...POSTAL SERVICE 39 CFR Part 111 Express Mail Open and Distribute and Priority...257, Tag 267, or Label 257S, on all Express Mail[supreg] Open and Distribute containers...also revising the service commitment for Express Mail Open and Distribute as a...

2010-11-26

250

Open Mind Animals: Insuring the quality of data openly contributed over the World Wide Web  

Microsoft Academic Search

We describe the Open Mind Initiative, a frame- work for building intelligent systems collabora- tively over the internet, and focus on one of its simpler component projects, Open Mind Animals. The Initiative extends traditional open source de- velopment methods by allowing non-expert neti- zens to contribute informal data over the inter- net. Such data is used to train classifiers or

David G. Stork; Chuck P. Lam

251

Differential Open Photoacoustic Helmholtz Cell  

NASA Astrophysics Data System (ADS)

There are very few designs of the open photoacoustic Helmholtz cells, and most of them exhibit very strong penetration of the external acoustic noise inside the cell. So far the best values of external acoustic noise suppression obtained in such cells were reported at the level of about 40 dB to 50 dB. This paper presents an open photoacoustic Helmholtz cell design with a differential signal detection. Both Helmholtz resonator cavities are equipped with microphones and connected with the exterior via duct-buffer-duct structures. The length and diameter of the ducts as well as volume of the acoustic buffers are selected in such a way that the acoustic impedance of the duct-buffer-duct structure at the frequency of light modulation is relatively high. As a result, the resonance of the cell is not damped, while penetration of the external acoustic noise inside the cell is strongly reduced. Preliminary analysis predicts attenuation of the external acoustic noise at the resonance frequency of the cell with a single microphone to be at the level of at least 60 dB. Additional rejection of the external acoustic noise can be obtained with differential detection, which simultaneously doubles the photoacoustic signal component; as in the Helmholtz resonator, pressure changes in the cavities are in counterphase.

Starecki, Tomasz; Geras, Antonina

2014-02-01

252

Open rotor broadband interaction noise  

NASA Astrophysics Data System (ADS)

A theoretical model is presented for calculating the broadband noise produced by the interaction of an open rotor with the wake from either an upstream contra-rotating rotor or a stationary pylon. The model is used to investigate the dependence of the radiated noise on parameters such as pylon-rotor gap and the polar and azimuthal directivity of the noise field. A simple model is also presented which assumes that the unsteady loading on adjacent blades is uncorrelated. It is shown that the simple model can be used to calculate broadband interaction noise for most practical open rotor geometries. The errors in Ref. [3] are listed in this footnote. (1) The effect of wake skew on the 'mean wake profile' was not properly accounted for (see Eqs. (38 and 39) of this paper). (2) The final formulation contained an extra factor of 2? due to an inconsistent Fourier transform convention. (3) There was an error in the wavenumber contained in the blade response function g (see Appendix 1 of this paper). (4) There were a number of errors in the 'acoustically weighted lift function', ?L, which is defined in Appendix 1 of this paper.

Kingan, Michael J.

2013-08-01

253

Solenoid hammer valve developed for quick-opening requirements  

NASA Technical Reports Server (NTRS)

Quick-opening lightweight solenoid hammer valve requires a low amount of electrical energy to open, and closes by the restoring action of the mechanical springs. This design should be applicable to many quick-opening requirements in fluid systems.

Wrench, E. H.

1967-01-01

254

The Development of a Measure of Perceived Communication Openness.  

ERIC Educational Resources Information Center

Describes the development of a Communication Openness Measure (COM) based on an empirically supported model of the communication openness construct and suggests a number of speculative conclusions about the nature of communication openness. (JC)

Rogers, Donald P.

1987-01-01

255

49 CFR 178.337-8 - Openings, inlets, and outlets.  

Code of Federal Regulations, 2013 CFR

...tank used for the transportation of liquefied materials to permit complete drainage. (2) Except for gauging devices, thermometer wells, pressure relief valves, manhole openings, product inlet openings, and product discharge openings, each...

2013-10-01

256

50 CFR 660.311 - Open access fishery-definitions.  

Code of Federal Regulations, 2013 CFR

...2013-10-01 false Open access fishery-definitions. 660.311 Section 660.311 Wildlife and Fisheries FISHERY CONSERVATION... West Coast Groundfish-Open Access Fisheries § 660.311 Open access fisheryâdefinitions....

2013-10-01

257

Potto Project - Open Textbooks in Engineering  

NSDL National Science Digital Library

The Potto Project, which is a community collaborative effort to write quality textbooks for colleges, operates in the spirit of the open-content movement. The open textbooks that are available through the Potto Project include: -Basics of Fluid Mechanics -Gas Dynamics Calculator and -Fundamentals of Compressible Flow Mechanics.

Bar-Meir, Dr. G.

2012-12-10

258

Accelerated IDL using OpenCL  

NASA Astrophysics Data System (ADS)

The Interactive Data Language (IDL) is also widely used in this community for data analysis and visualization. Previously, we have developed GPULib, a library of routines in IDL for accelerating common scientific operations including arithmetic, FFTs, interpolation, and other computations using using CUDA-enabled GPUs from NVIDIA. We have now ported portions of this library to OpenCL, making GPU accelerated IDL available on any modern GPU or CPU. Currently, our OpenCL library supports basic array operations and the ability to execute user-defined OpenCL kernels. Use of the open standard OpenCL implemented by several hardware vendors from within GPULib is an exciting prospect with several advantages: 1) OpenCL is an open standard and runs on multiple vendor hardware implementations including for both CPU and GPU hardware, and 2) OpenCL uses runtime compilation of kernels allowing easy construction of custom kernels at runtime (useful for creating user-defined fitting functions) In addition, we have a library of GPU accelerated routines (using CUDA) to perform Levenberg-Marquardt curve fitting. In addition, GPU accelerated LAPACK routines provided by MAGMA and simple ways to access user-written CUDA kernels have also been added to support this library.

Galloy, M. D.; Fillmore, D. W.; Rood, J.

2013-12-01

259

Emerging Leaders: AED's Open World Program.  

ERIC Educational Resources Information Center

Describes the Open World Program, funded and administered by the Library of Congress, with support from private organizations such as the Academy for Educational Development (AED). Open World Program allows community colleges to participate by hosting delegations from other countries. Some themes include: environment, women as leaders, economic…

McDonald, Sandra

2003-01-01

260

Equivalent Capacitances of Microstrip Open Circuits  

Microsoft Academic Search

The integral equations that describe the charge distribution near an open-circuited microstrip end are formulated and subsequently solved by a projective method. The solution hinges on development of computationally efficient techniques for dealing with the singularities that occur by special quadrature formulas. The necessary formulas are described and tabulated. These techniques are then used to find open-circuit capacitance values for

P. Silvester; PETER BENEDEK

1972-01-01

261

Opening and transforming South African education  

Microsoft Academic Search

This article examines the challenge of opening and transforming South African education. ‘Openness’ and ‘transformation’ of any education programme in any society are ethicopolitical processes. In the case of South Africa, the transition from an autocratic education system serving the interests of a minority to a more modern and democratic educational dispensation demands a critical rethinking of the meaning of

Maurice Taonezvi Vambe

2005-01-01

262

Four Strategies for Teaching Open-Mindedness  

ERIC Educational Resources Information Center

An open mind--the willingness to consider experiences, beliefs, values, perspectives, etc. that differ from one's own--allows the learner to explore how diverse people across the world think and act. Open-mindedness creates opportunities to rethink assumptions, identify misinformation, and consider alternative ways to make decisions.…

Merryfield, Merry M.

2012-01-01

263

Open Access and Civic Scientific Information Literacy  

ERIC Educational Resources Information Center

Introduction: We examine how residents and citizens of The Netherlands perceive open access to acquire preliminary insight into the role it might play in cultivating civic scientific literacy. Open access refers to scientific or scholarly research literature available on the Web to scholars and the general public in free online journals and…

Zuccala, Alesia

2010-01-01

264

CCD BV survey of 42 open clusters  

Microsoft Academic Search

Aims:We present results of a photometric survey whose aim was to derive structural and astrophysical parameters for 42 open clusters. While our sample is definitively not representative of the total open cluster sample in the Galaxy, it does cover a wide range of cluster parameters and is uniform enough to allow for simple statistical considerations. Methods: BV wide-field CCD photometry

G. Maciejewski; A. Niedzielski

2007-01-01

265

Open-Access Electronic Textbooks: An Overview  

ERIC Educational Resources Information Center

Given the challenging economic climate in the United States, many academics are looking to open-access electronic textbooks as a way to provide students with traditional textbook content at a more financially advantageous price. Open access refers to "the free and widely available information throughout the World Wide Web. Once an article's author…

Ovadia, Steven

2011-01-01

266

A Method for Measuring International Openness  

ERIC Educational Resources Information Center

The author illustrates a method for measuring international openness by bringing forward some examples. The index proposed measures the capacity of countries for a given phenomenon, adjusted for their weight in the phenomena concerned. In this study, the Index is applied to measure the degree of openness to international migration in a number of…

Ferrieri, Gaetano

2006-01-01

267

7 Questions to Ask Open Source Vendors  

ERIC Educational Resources Information Center

With their budgets under increasing pressure, many campus IT directors are considering open source projects for the first time. On the face of it, the savings can be significant. Commercial emergency-planning software can cost upward of six figures, for example, whereas the open source Kuali Ready might run as little as $15,000 per year when…

Raths, David

2012-01-01

268

Membrane geometry of “open” prolamellar bodies  

Microsoft Academic Search

Summary The “open” type of prolamellar body in etiplasts was examined by electron microscopy to characterise its three-dimensional organisation. As in more compact forms of prolamellar body, its basic geometric unit is a tetrahedrally branched tubule. In the “open” type, these lie smoothly confluent with one another at the vertices of 5- and 6-membered rings which circumscribe the faces of

B. E. S. Gunning

2001-01-01

269

Teacher Adaptation to Open Learning Spaces  

ERIC Educational Resources Information Center

The "open classroom" emerged as a reaction against the industrial-era enclosed and authoritarian classroom. Although contemporary school architecture continues to incorporate and express ideas of openness, more research is needed about how teachers adapt to new and different built contexts. Our purpose is to identify teacher reaction to…

Alterator, Scott; Deed, Craig

2013-01-01

270

Automated dependency resolution for open source software  

Microsoft Academic Search

Opportunities for software reuse are plentiful, thanks in large part to the widespread adoption of open source processes and the availability of search engines for locating relevant artifacts. One challenge presented by open source software reuse is simply getting a newly downloaded artifact to build\\/run in the first place. The artifact itself likely reuses other artifacts, and so depends on

Joel Ossher; Sushil Krishna Bajracharya; Cristina Videira Lopes

2010-01-01

271

Britain's Open University, User of Mass Media.  

ERIC Educational Resources Information Center

The way that the Open University system in Great Britain operates and the use of the mass media are discussed in detail. A number of problems the adult student is likely to face are identified, along with basic differences between U.S. and British societies that influence the application of an open university approach. Attention is directed to:…

Stephenson, William

272

CONNECTICUT MUNICIPAL AND PRIVATE OPEN SPACE  

EPA Science Inventory

This is a 1:24,000-scale datalayer of property owned by Connecticut municipalities and private organizations for the purpose of preserving open space. It is a polygon Shapefile that primarily includes land conservation trust property, town open space, parks, school playgrounds, ...

273

Open Access Data Takes Center Stage  

Cancer.gov

Posted on February 08, 2012 NCI’s Cancer Bulletin highlight a recent conversation with Drs. Henry Rodriguez and Christopher Kinsinger of OCCPR focusing on Open Data Access in Proteomics. Click here to link to the article. Print This Page Open Access

274

Wireless measurement of open loop micro coils  

Microsoft Academic Search

This paper reports for the first time wireless mea- surement of open loop micro coils inductance, inter winding ca- pacitance and parasitic resistance. Wireless read out is performed using an inductively coupled passive system which consists of an electrically small magnetic loop antenna as a sensing coil and an open loop test micro coil. Further an equivalent circuit model is

A. Yousaf; T. Jaeger; L. Reindl; Winfried Czech

2011-01-01

275

Modeling Indirect Interaction in Open Computational Systems  

Microsoft Academic Search

Open systems are part of a paradigm shift from algorithmic to interactive computation. Multiagent systems in nature that exhibit emergent behavior and stigmergy offer inspiration for research in open systems and enabling technologies for collaboration. This contribution distinguishes two types of interaction, directly via messages, and indirectly via persistent observable state changes. Models of collaboration are incomplete if they fail

David Keil; Dina Q. Goldin

2003-01-01

276

Geotechnical applications in open pit mining  

Microsoft Academic Search

Detailed geotechnical data is often a major unknown factor in open pit design and mining, the lack of which constitutes a significant risk in any mining venture. As geotechnical data is accumulated so the risk of unforeseen conditions reduces, and so safety and productivity can be increased. Previously, most geotechnical work undertaken at open pit mines has focused on the

A. R. Bye; F. G. Bell

2001-01-01

277

Modelling open pit dynamics using discrete simulation  

Microsoft Academic Search

The objective in any mining operation is to exploit ore at the lowest possible cost with the prospect of maximizing profits. The planning of an open pit mine is an economic exercise, constrained by certain geological, operating, technological and local field factors. Heuristic methods, economic parametric analysis, operations research and genetic algorithms have been used to formulate periodic open pit

H. Askari-Nasab; S. Frimpong; J. Szymanski

2007-01-01

278

Open Loop Gust Alleviation System: Olga.  

National Technical Information Service (NTIS)

The application of a gust alleviation system on low wing loading aircraft, the open loop gust alleviation (OLGA) was examined. In the open loop principle the gust angle is calculated from the sensor signals and fed to the actuators which control the symme...

H. Boehret U. Nortmann M. Vonsarnowski W. Wagner H. Wuennenberg

1982-01-01

279

CAPE-OPEN WITH .NET TRAINING COURSE  

EPA Science Inventory

On March 7, 2007 in Heidelberg, Germany, the CAPE-OPEN Laboratories Network (CO-LaN) is offering a one-day training seminar on implementing CAPE-OPEN compliant process modeling components (PMCs) using .NET-based development tools. This seminar will be geared to component develope...

280

Dynamic, open inquiry in biology learning  

Microsoft Academic Search

In the new biology-learning curriculum for Israeli high schools, known as Biomind, students experience open-inquiry.'' This paper describes a qualitative action research project that was performed in order to investigate the characteristics of the open inquiry learning process. Specifically, the research investigates this process in terms of the concepts of evidence, affective aspects, and other aspects that may emerge by

M. Zion; M. Slezak; D. Shapira; E. Link; N. Bashan; M. Brumer; T. Orian; R. Nussinowitz; D. Court; B. Agrest; R. Mendelovici; N. Valanides

2004-01-01

281

Open Higher Education: The Management Challenge.  

ERIC Educational Resources Information Center

Management principles and trends are examined with attention to open higher education. Administrative activity includes policy-making, technical tasks, and institutional direction. Open higher education includes programs to prepare both professional and semi-skilled workers, as well as programs that meet personal and social aims. Participation in…

McCleary, Lloyd E.

282

Materials Production in Open and Distance Learning.  

ERIC Educational Resources Information Center

This book contains 19 papers grouped in three sections that lead the reader through the process of planning, producing, and presenting materials in open and distance learning, based on experience in Great Britain. Following an overview by Roger Lewis, the Planning section contains the following six papers: "Resources and Constraints in Open and…

Lockwood, Fred, Ed.

283

On the Relevance of Open Market Operations  

Microsoft Academic Search

This paper reexamines the role of open market operations for short-run effects of monetary policy. Money demand is induced by a cash constraint, while the central bank supplies money exclusively in exchange for securities, discounted with a short-run nominal interest rate. We consider a legal restriction for open market operations by which only government bonds are eligible, whereas private debt

Andreas Schabert

2004-01-01

284

Can Teacher Questions Be "Too" Open?  

ERIC Educational Resources Information Center

Many educators recommend using open-ended questions to encourage students to share their thinking. However, inexplicit open-ended questions can make it difficult for students to determine the teacher's intentions and to participate confidently in mathematical conversations. This article describes strategies teachers can use to make the language of…

Parks, Amy Noelle

2009-01-01

285

Open File: School Autonomy and Evaluation.  

ERIC Educational Resources Information Center

The editorial, "Some Aspects of the Educational Change Dynamic: Setting School Autonomy and Evaluation in Context" (Cecilia Braslavsky), explains the focus of this issue. This "Open File: School Autonomy and Evaluation" section contains: "Introduction to the Open File" (Norberto Bottani; Bernard Favre); "IPES The System of Indicators for Secondary…

Bottani, Norberto, Ed.; Favre, Bernard, Ed.

2001-01-01

286

Open Educational Resources: Staff Attitudes and Awareness  

ERIC Educational Resources Information Center

Attitudes are changing in education globally to promote the open sharing of educational courses and resources. The aim of this study was to explore staff awareness and attitudes towards "open educational resources" (OER) as a benchmark for monitoring future progress. Faculty staff (n = 6) were invited to participate in semi-structured interviews…

Rolfe, Vivien

2012-01-01

287

Defining an Open Source Strategy for NASA  

NASA Astrophysics Data System (ADS)

Over the course of the past year, we have worked to help frame a strategy for NASA and open source software. This includes defining information processes to understand open source licensing, attribution, commerciality, redistribution, communities, architectures, and interactions within the agency. Specifically we held a training session at the NASA Earth Science Data Systems Working Group meeting in Open Source software as it relates to the NASA Earth Science data systems enterprise, including EOSDIS, the Distributed Active Archive Centers (DAACs), ACCESS proposals, and the MEASURES communities, and efforts to understand how open source software can be both consumed and produced within that ecosystem. In addition, we presented at the 1st NASA Open Source Summit (OSS) and helped to define an agency-level strategy, a set of recommendations and paths forward for how to identify healthy open source communities, how to deal with issues such as contributions originating from other agencies, and how to search out talent with the right skills to develop software for NASA in the modern age. This talk will review our current recommendations for open source at NASA, and will cover the set of thirteen recommendations output from the NASA Open Source Summit and discuss some of their implications for the agency.

Mattmann, C. A.; Crichton, D. J.; Lindsay, F.; Berrick, S. W.; Marshall, J. J.; Downs, R. R.

2011-12-01

288

Hybrid open hash tables for network processors  

Microsoft Academic Search

Packet classification by analyzing the traffic header information is an essential task of network processors. To efficiently store, retrieve and update information, key-based data accessing algorithms such as hashing are usually used to improve the processing performance. In this paper, we propose the hybrid open hash, a composite algorithm that combines open addressing hash tables with the temporal responsiveness of

Qing Ye; Dale Parson; Liang Cheng

2005-01-01

289

A proposal of an open PET geometry  

Microsoft Academic Search

The long patient port of a PET scanner tends to put stress on patients, especially patients with claustrophobia. It also prevents doctors and technicians from taking care of patients during scanning. In this paper, we proposed an ‘open PET’ geometry, which consists of two axially separated detector rings. A long and continuous field-of-view (FOV) including a 360 opened gap between

Taiga Yamaya; Taku Inaniwa; Shinichi Minohara; Eiji Yoshida; Naoko Inadama; Fumihiko Nishikido; Kengo Shibuya; Chih Fung Lam; Hideo Murayama

2008-01-01

290

A Brief Overview of Open Classroom Education.  

ERIC Educational Resources Information Center

This paper presents a brief overview of the 1972 image of open classroom education, suggesting movement beyond the awareness level of the educational, psychological, and philosophical foundations. Seventeen essential components, composing the operationally successful classroom, are presented. The roles of the teacher in an open classroom include a…

Newman, Sally

291

The butterfly effect of small open economies  

Microsoft Academic Search

The rational expectations equilibrium of a small open economy can be subject to indeterminacy if foreign monetary policy does not satisfy the Taylor principle. We study the implications of foreign induced indeterminacy in the two-country version of the sticky-price small open economy model. Our main finding is that ‘smallness’ is a property of the unique rational expectations equilibrium of the

Jarkko P. Jääskelä; Mariano Kulish

2010-01-01

292

Community Open Source Strategic Plan, February 1995.  

National Technical Information Service (NTIS)

This Strategic Plan describes the goals and objectives of the Community Open Source Program for the next seven years. It builds on the half-century-plus heritage of Open Source Information providers and users in the Intelligence Community. The Plan projec...

1995-01-01

293

Schools and Teachers Supporting Student Open Investigations  

ERIC Educational Resources Information Center

This paper draws on a study of the BHP Billiton Science Awards to explore the ways in which open investigation work occurs in schools. The research used interviews with teachers and students and state organisers to develop a picture of what happens on the ground in running student open investigations, and to trace how schools have built a culture…

Symington, David; Tytler, Russell

2011-01-01

294

39 CFR 7.2 - Open meetings.  

Code of Federal Regulations, 2010 CFR

...2009-07-01 2009-07-01 false Open meetings. 7.2 Section 7.2 Postal Service UNITED STATES POSTAL SERVICE THE...POSTAL SERVICE PUBLIC OBSERVATION (ARTICLE VII) § 7.2 Open meetings. (a) It is the policy of the...

2009-07-01

295

39 CFR 7.2 - Open meetings.  

Code of Federal Regulations, 2010 CFR

...2010-07-01 2010-07-01 false Open meetings. 7.2 Section 7.2 Postal Service UNITED STATES POSTAL SERVICE THE...POSTAL SERVICE PUBLIC OBSERVATION (ARTICLE VII) § 7.2 Open meetings. (a) It is the policy of the...

2010-07-01

296

Measured opening characteristics of an electromagnetically opened diaphragm for the Langley expansion tunnel  

NASA Technical Reports Server (NTRS)

Results from an experimental study of the opening characteristics of an electromagnetically opened, 15.24 cm diameter diaphragm are presented. This diaphragm consists of a polyester film bonded to a preformed wire and is opened by passing a current pulse (capacitor discharge) through the wire. The diaphragm separates the acceleration section of the expansion tunnel from the nozzle so that the nozzle may be at a lower pressure than the acceleration section prior to a test. Opening times and cleanness of the opened area were examined for dependence on diaphragm thickness, on wire diameter, on technique of bonding the wire to the diaphragm, and on voltage and energy level of the energy source. Time histories of the pitot pressure measured at the expansion-tunnel nozzle entrance location are presented for (1) no diaphragm, (2) a flow-opened diaphragm, and (3) an electromagnetically opened diaphragm.

Moore, J. A.

1976-01-01

297

Open Rotor - Analysis of Diagnostic Data  

NASA Technical Reports Server (NTRS)

NASA is researching open rotor propulsion as part of its technology research and development plan for addressing the subsonic transport aircraft noise, emission and fuel burn goals. The low-speed wind tunnel test for investigating the aerodynamic and acoustic performance of a benchmark blade set at the approach and takeoff conditions has recently concluded. A high-speed wind tunnel diagnostic test campaign has begun to investigate the performance of this benchmark open rotor blade set at the cruise condition. Databases from both speed regimes will comprise a comprehensive collection of benchmark open rotor data for use in assessing/validating aerodynamic and noise prediction tools (component & system level) as well as providing insights into the physics of open rotors to help guide the development of quieter open rotors.

Envia, Edmane

2011-01-01

298

The HYPE Open Source Community  

NASA Astrophysics Data System (ADS)

The Hydrological Predictions for the Environment (HYPE) model is a dynamic, semi-distributed, process-based, integrated catchment model (Lindström et al., 2010). It uses well-known hydrological and nutrient transport concepts and can be applied for both small and large scale assessments of water resources and status. In the model, the landscape is divided into classes according to soil type, vegetation and altitude. The soil representation is stratified and can be divided in up to three layers. Water and substances are routed through the same flow paths and storages (snow, soil, groundwater, streams, rivers, lakes) considering turn-over and transformation on the way towards the sea. In Sweden, the model is used by water authorities to fulfil the Water Framework Directive and the Marine Strategy Framework Directive. It is used for characterization, forecasts, and scenario analyses. Model data can be downloaded for free from three different HYPE applications: Europe (www.smhi.se/e-hype), Baltic Sea basin (www.smhi.se/balt-hype), and Sweden (vattenweb.smhi.se) The HYPE OSC (hype.sourceforge.net) is an open source initiative under the Lesser GNU Public License taken by SMHI to strengthen international collaboration in hydrological modelling and hydrological data production. The hypothesis is that more brains and more testing will result in better models and better code. The code is transparent and can be changed and learnt from. New versions of the main code will be delivered frequently. The main objective of the HYPE OSC is to provide public access to a state-of-the-art operational hydrological model and to encourage hydrologic expertise from different parts of the world to contribute to model improvement. HYPE OSC is open to everyone interested in hydrology, hydrological modelling and code development - e.g. scientists, authorities, and consultancies. The HYPE Open Source Community was initiated in November 2011 by a kick-off and workshop with 50 eager participants from twelve different countries. In beginning of 2013 we will release a new version of the code featuring new and better modularization, corresponding to hydrological processes which will make the code easier to understand and further develop. During 2013 we also plan a new workshop and HYPE course for everyone interested in the community. Lindström, G., Pers, C.P., Rosberg, R., Strömqvist, J., Arheimer, B. 2010. Development and test of the HYPE (Hydrological Predictions for the Environment) model - A water quality model for different spatial scales. Hydrology Research 41.3-4:295-319

Strömbäck, Lena; Arheimer, Berit; Pers, Charlotta; Isberg, Kristina

2013-04-01

299

Open access intrapartum CTG database  

PubMed Central

Background Cardiotocography (CTG) is a monitoring of fetal heart rate and uterine contractions. Since 1960 it is routinely used by obstetricians to assess fetal well-being. Many attempts to introduce methods of automatic signal processing and evaluation have appeared during the last 20 years, however still no significant progress similar to that in the domain of adult heart rate variability, where open access databases are available (e.g. MIT-BIH), is visible. Based on a thorough review of the relevant publications, presented in this paper, the shortcomings of the current state are obvious. A lack of common ground for clinicians and technicians in the field hinders clinically usable progress. Our open access database of digital intrapartum cardiotocographic recordings aims to change that. Description The intrapartum CTG database consists in total of 552 intrapartum recordings, which were acquired between April 2010 and August 2012 at the obstetrics ward of the University Hospital in Brno, Czech Republic. All recordings were stored in electronic form in the OB TraceVue®;system. The recordings were selected from 9164 intrapartum recordings with clinical as well as technical considerations in mind. All recordings are at most 90 minutes long and start a maximum of 90 minutes before delivery. The time relation of CTG to delivery is known as well as the length of the second stage of labor which does not exceed 30 minutes. The majority of recordings (all but 46 cesarean sections) is – on purpose – from vaginal deliveries. All recordings have available biochemical markers as well as some more general clinical features. Full description of the database and reasoning behind selection of the parameters is presented in the paper. Conclusion A new open-access CTG database is introduced which should give the research community common ground for comparison of results on reasonably large database. We anticipate that after reading the paper, the reader will understand the context of the field from clinical and technical perspectives which will enable him/her to use the database and also understand its limitations.

2014-01-01

300

Gallery of the Open Frontier  

NSDL National Science Digital Library

The Gallery of the Open Frontier is a digital image library of photos, paintings, and drawings that pertain to the history of the American West. This online resource, drawn initially from the primary collections of the National Archives, is being designed by the University of Nebraska Press to serve four essential functions: 1) Allow researchers to easily view portions of the holdings of the National Archives from anywhere in the US with an Internet connection; 2) Establish a testbed for developing similar digital image libraries from the nonprofit and public sector image archives; 3) Provide a service to the educational community by making thousands of images easily accessible worldwide for educational use and historical analysis; 4) Provide the raw materials for the creation of teacher- and scholar-created "tours," educational units, and teaching aids about the history of the American expansion into the West, both online and on CD-ROM.

301

Summing Planar Bosonic Open Strings  

SciTech Connect

In earlier work, planar graphs of massless {phi}{sup 3} theory were summed with the help of the light cone world sheet picture and the mean field approximation. In the present article, the same methods are applied to the problem of summing planar bosonic open strings. They find that in the ground state of the system, string boundaries form a condensate on the world sheet, and a new string emerges from this summation. Its slope is always greater than the initial slope, and it remains non-zero even when the initial slope is set equal to zero. If they assume the initial string tends to a field a theory in the zero slope limit, this result provides evidence for string formation in field theory.

Bardakci, Korkut

2006-02-16

302

The open cluster NGC 6716  

NASA Astrophysics Data System (ADS)

NGC 6716 is a young open star cluster in Sagittarius. Lindoff (1971) obtained photoelectric photometry for 12 stars and photographic UBV photometry for 115 stars in the cluster field down to V = 13.8. This work has been expanded to include more photoelectric standards and iris photometry for 332 stars in the cluster field down to V = 16. A reddening E(B-V) = 0.17 mag, a distance modulus of 8.69 + or - 0.15 mag (d = 547 pc), and an age of around 100 million years for the cluster are derived. Of the stars studied, 75 were judged as likely cluster members, 63 as possible members, and 194 as probable nonmembers.

Grice, Noreen A.; Dawson, Dennis W.

1990-08-01

303

Digital Circuits Open Source Textbook  

NSDL National Science Digital Library

This open source book on WikiBooks will serve as an introduction to Digital Circuits. This book relies heavily on the concepts of Discrete Math, but will not require any previous knowledge of the subject because all necessary math concepts will be developed in the text. This book does assume a knowledge of basic electrical principles such as current, voltage, and resistance, so the reader may want to brush up on their Circuit Theory. The strength of digital technology in any context is fast, easy duplication with no loss of fidelity. In many media, this serves mainly to streamline distribution. While that aspect cannot be completely overlooked, some artistic endeavors, such as animation, are centered on a process of repeated duplication with systematic changes, so that digital tools often become a central part of the creative process.

2011-01-17

304

Open Architecture SDR for Space  

NASA Technical Reports Server (NTRS)

This paper describes an open-architecture SDR (software defined radio) infrastructure that is suitable for space-based operations (Space-SDR). SDR technologies will endow space and planetary exploration systems with dramatically increased capability, reduced power consumption, and significantly less mass than conventional systems, at costs reduced by vigorous competition, hardware commonality, dense integration, reduced obsolescence, interoperability, and software re-use. Significant progress has been recorded on developments like the Joint Tactical Radio System (JSTRS) Software Communication Architecture (SCA), which is oriented toward reconfigurable radios for defense forces operating in multiple theaters of engagement. The JTRS-SCA presents a consistent software interface for waveform development, and facilitates interoperability, waveform portability, software re-use, and technology evolution.

Smith, Carl; Long, Chris; Liebetreu, John; Reinhart, Richard C.

2005-01-01

305

Open issues in MPI implementation.  

SciTech Connect

MPI (the Message Passing Interface) continues to be the dominant programming model for parallel machines of all sizes, from small Linux clusters to the largest parallel supercomputers such as IBM Blue Gene/L and Cray XT3. Although the MPI standard was released more than 10 years ago and a number of implementations of MPI are available from both vendors and research groups, MPI implementations still need improvement in many areas. In this paper, we discuss several such areas, including performance, scalability, fault tolerance, support for debugging and verification, topology awareness, collective communication, derived datatypes, and parallel I/O. We also present results from experiments with several MPI implementations (MPICH2, Open MPI, Sun, IBM) on a number of platforms (Linux clusters, Sun and IBM SMPs) that demonstrate the need for performance improvement in one-sided communication and support for multithreaded programs.

Thakur, R.; Gropp, W.; Mathematics and Computer Science

2007-01-01

306

Bandgap Opening by Patterning Graphene  

PubMed Central

Owing to its remarkable electronic and transport properties, graphene has great potential of replacing silicon for next-generation electronics and optoelectronics; but its zero bandgap associated with Dirac fermions prevents such applications. Among numerous attempts to create semiconducting graphene, periodic patterning using defects, passivation, doping, nanoscale perforation, etc., is particularly promising and has been realized experimentally. However, despite extensive theoretical investigations, the precise role of periodic modulations on electronic structures of graphene remains elusive. Here we employ both the tight-binding modeling and first-principles electronic structure calculations to show that the appearance of bandgap in patterned graphene has a geometric symmetry origin. Thus the analytic rule of gap-opening by patterning graphene is derived, which indicates that if a modified graphene is a semiconductor, its two corresponding carbon nanotubes, whose chiral vectors equal graphene's supercell lattice vectors, are both semimetals.

Dvorak, Marc; Oswald, William; Wu, Zhigang

2013-01-01

307

DISCONNECTING OPEN SOLAR MAGNETIC FLUX  

SciTech Connect

Disconnection of open magnetic flux by reconnection is required to balance the injection of open flux by coronal mass ejections and other eruptive events. Making use of recent advances in heliospheric background subtraction, we have imaged many abrupt disconnection events. These events produce dense plasma clouds whose distinctive shape can now be traced from the corona across the inner solar system via heliospheric imaging. The morphology of each initial event is characteristic of magnetic reconnection across a current sheet, and the newly disconnected flux takes the form of a 'U-'shaped loop that moves outward, accreting coronal and solar wind material. We analyzed one such event on 2008 December 18 as it formed and accelerated at 20 m s{sup -2} to 320 km s{sup -1}, thereafter expanding self-similarly until it exited our field of view 1.2 AU from the Sun. From acceleration and photometric mass estimates we derive the coronal magnetic field strength to be 8 {mu}T, 6 R{sub Sun} above the photosphere, and the entrained flux to be 1.6 Multiplication-Sign 10{sup 11} Wb (1.6 Multiplication-Sign 10{sup 19} Mx). We model the feature's propagation by balancing inferred magnetic tension force against accretion drag. This model is consistent with the feature's behavior and accepted solar wind parameters. By counting events over a 36 day window, we estimate a global event rate of 1 day{sup -1} and a global solar minimum unsigned flux disconnection rate of 6 Multiplication-Sign 10{sup 13} Wb yr{sup -1} (6 Multiplication-Sign 10{sup 21} Mx yr{sup -1}) by this mechanism. That rate corresponds to {approx} - 0.2 nT yr{sup -1} change in the radial heliospheric field at 1 AU, indicating that the mechanism is important to the heliospheric flux balance.

DeForest, C. E.; Howard, T. A.; McComas, D. J. [Southwest Research Institute, 1050 Walnut Street Suite 300, Boulder, CO 80302 (United States)

2012-01-20

308

A proposal of an open PET geometry.  

PubMed

The long patient port of a PET scanner tends to put stress on patients, especially patients with claustrophobia. It also prevents doctors and technicians from taking care of patients during scanning. In this paper, we proposed an 'open PET' geometry, which consists of two axially separated detector rings. A long and continuous field-of-view (FOV) including a 360 degrees opened gap between two detector rings can be imaged enabling a fully 3D image reconstruction of all the possible lines-of-response. The open PET will become practical if iterative image reconstruction methods are applied even though image reconstruction of the open PET is analytically an incomplete problem. First we implemented a 'masked' 3D ordered subset expectation maximization (OS-EM) in which the system matrix was obtained from a long 'gapless' scanner by applying a mask to detectors corresponding to the open space. Next, in order to evaluate imaging performance of the proposed open PET geometry, we simulated a dual HR+ scanner (ring diameter of D = 827 mm, axial length of W = 154 mm x 2) separated by a variable gap. The gap W was the maximum limit to have axially continuous FOV of 3W though the maximum diameter of FOV at the central slice was limited to D/2. Artifacts, observed on both sides of the open space when the gap exceeded W, were effectively reduced by inserting detectors partially into unnecessary open spaces. We also tested the open PET geometry using experimental data obtained by the jPET-D4. The jPET-D4 is a prototype brain scanner, which has 5 rings of 24 detector blocks. We simulated the open jPET-D4 with a gap of 66 mm by eliminating 1 block-ring from experimental data. Although some artifacts were seen at both ends of the opened gap, very similar images were obtained with and without the gap. The proposed open PET geometry is expected to lead to realization of in-beam PET, which is a method for an in situ monitoring of charged particle therapy, by letting the beams pass through the gap. The proposed open PET geometry will also allow simultaneous PET/CT measurements of the same PET FOV as the CT FOV, in contrast to the conventional PET/CT where each FOV is separated by several tens of centimeters. PMID:18199913

Yamaya, Taiga; Inaniwa, Taku; Minohara, Shinichi; Yoshida, Eiji; Inadama, Naoko; Nishikido, Fumihiko; Shibuya, Kengo; Lam, Chih Fung; Murayama, Hideo

2008-02-01

309

Benefits of Openness for US Security  

NASA Astrophysics Data System (ADS)

The US has been very successful in applying science and engineering to defense and space. The US has also run the most open defense research and development establishment in the world. The openness is connected with the success by making possible open criticism of mistakes and failures, access of foreign-born citizens, and participation of cleared scientists and engineers in open science around the world. This open system is at risk today, when it is more badly needed than ever. The right strategy is first, to draw a clear line around the information that should be kept secret, with some margin so that this information would not be partially given away by its boundary, and to continue with the open system elsewhere. The US, because it invests more, usually profits more from common knowledge. Second, spies are caught through good line leadership and good security work. The constraints now being discussed on unclassified information or on foreign visitors would not have helped catch them. Third, new guidance is needed for exports control. The US must cooperate with countries that are partners in trade and in international initiatives of the first importance, but which may also be political, economic and military rivals. Guidelines to protect what is key to our current military edge while retaining the open system are suggested.

May, Michael M.

2000-04-01

310

VOLT: the Victoria Open Loop Testbed  

NASA Astrophysics Data System (ADS)

The Victoria Open Loop Testbed (VOLT) serves as a demonstration of open loop control both on-sky (at the Dominion Astrophysical Observatory's 1.2m telescope) and in the lab in order to facilitate the future development of Multi-Object Adaptive Optics (MOAO). MOAO, when combined with multiple deployable integral field units, is a concept which promises to deliver near diffraction-limited images over a large field of view. Astronomers will be able to use the multiplex advantage of MOAO instruments to mount large, detailed surveys of galaxies and star formation regions. However, several challenges await MOAO instrument designers. The greatest of these is implementing open loop control in an astronomical adaptive optics (AO) system. Almost all astronomical AO systems to date have used some form of closed loop control, in which the wavefront sensors (WFSs) measure a residual wavefront error after the deformable mirror (DM) has taken on its commanded shape. WFSs in an open loop system can be spatially separated from the DM, but doing so creates new challenges, some known and some unknown. Uncertainties springing from open loop control pose the greatest risk to the design of a MOAO instrument. To mitigate this risk, we have designed and built VOLT, a simple on-axis open loop adaptive optics system. We describe several sources of open loop error, and our measurements of their expected contribution to the VOLT performance. Finally we present observations of a bright star, showing that VOLT, operating in open loop, was able to significantly improve the image quality from 2.5 arcseconds to 0.5 arcseconds in I-band, consistent with our estimates of the wavefront errors. We also present the open loop rejection transfer function for VOLT based on both on-sky and lab measurements.

Andersen, David R.; Fischer, Michael; Conan, Rodolphe; Fletcher, Murray; Véran, Jean-Pierre

2008-07-01

311

Minimal incision laparoscopy assisted open pediatric pyeloplasty.  

PubMed

Minimal incision laparoscopy-assisted open pyeloplasty (MILAP) incorporates elements of open pyeloplasty (OP) and single incision laparoscopy to improve technical ease and cosmetic outcomes. Six MILAP procedures were performed using a single transumbilical incision through which the ureteropelvic junction (UPJ) is mobilized with standard laparoscopic instrumentation. The UPJ is brought extracorporeally through a 1-cm flank incision, and a traditional Anderson-Hynes open pyeloplasty is performed. Compared with OP, perioperative outcomes were similar. Follow-up renal scans all showed improvement of obstruction. A 1-cm flank incision is the only obvious scar. PMID:23958175

Woo, Jason R; Marietti, Sarah; Masterson, James; Chiang, George

2014-04-01

312

Perturbative approach to Markovian open quantum systems.  

PubMed

The exact treatment of Markovian open quantum systems, when based on numerical diagonalization of the Liouville super-operator or averaging over quantum trajectories, is severely limited by Hilbert space size. Perturbation theory, standard in the investigation of closed quantum systems, has remained much less developed for open quantum systems where a direct application to the Lindblad master equation is desirable. We present such a perturbative treatment which will be useful for an analytical understanding of open quantum systems and for numerical calculation of system observables which would otherwise be impractical. PMID:24811607

Li, Andy C Y; Petruccione, F; Koch, Jens

2014-01-01

313

Perturbative approach to Markovian open quantum systems  

NASA Astrophysics Data System (ADS)

The exact treatment of Markovian open quantum systems, when based on numerical diagonalization of the Liouville super-operator or averaging over quantum trajectories, is severely limited by Hilbert space size. Perturbation theory, standard in the investigation of closed quantum systems, has remained much less developed for open quantum systems where a direct application to the Lindblad master equation is desirable. We present such a perturbative treatment which will be useful for an analytical understanding of open quantum systems and for numerical calculation of system observables which would otherwise be impractical.

Li, Andy C. Y.; Petruccione, F.; Koch, Jens

2014-05-01

314

Heated Debates Over Open Source Software  

NSDL National Science Digital Library

Open source code has allowed for the proliferation of open source software that competes with the big guns of software development, like Microsoft. Tempers run high, with the key issues focused on differing philosophies on the best business model to use and disputes over copyright, leading to lawsuits and heated online discussions. This issue of Topic in Depth provides an overview of open source software, and a selection of websites that discuss some of the pros and cons to the different approaches to software development.Some argue that open source is the best way to improve software, because developers can share the code and discuss issues. This article from _Nature_ reviews some of those arguments (1). Slashdot.com posts this article, which offers a counter argument (2) by raising concerns about security. Security has been a key issue for Microsoft -- along with copyright -- and it posts this statement on the company website regarding its "Approach to Source Code Sharing Balances Accessibility with Responsibility" (3).More information on copyright issues can be found on the GNU Project website (4 ). The GNU project was initiated by Richard Stallman and sponsored by the Free Software Foundation, which "supports the freedoms of speech, press, and association on the Internet, the right to use encryption software for private communication, and the right to write software unimpeded by private monopolies." The Open Source Initiative (OSI) emphasizes the management and promotion of the Open Source Definition "for the good of the community" and provides some basic information on open source software (5 ). Another online news source on open source software -- Daemon News(6 )-- posts an article that argues for other ways open source can be a learning tool in "Teaching Kids to Think for Themselves." This website provides a brief history of open source software (7), tracing the initiation of open source software to Stallman and his colleagues during "the 'hacker' culture of U.S. computer science laboratories." For more on the extent of open source software now available, see O'Reilly's list of resources (8 ).

315

Cataclysmic Variables in Open Clusters: EU Cnc  

NASA Astrophysics Data System (ADS)

We present a photometric study of the magnetic cataclysmic variable (MCV) EU Cnc, which is a member of the solar-age/solar-metalicity open cluster M67. A comparison with field and globular cluster MCVs reveals that, although the amplitude of the orbital light curve of EU Cnc corresponds to that of a high polar, the cluster membership (absolute magnitude) of the system implies a low M-dot system. Considering that EU Cnc is the only MCV known in an open cluster, our result suggests that open cluster MCVs may differ from their field and globular cluster counterparts.

Nair, P. H.; Kafka, S.; Honeycutt, R. K.; Gilliland, Ronald L.

2005-01-01

316

Perturbative approach to Markovian open quantum systems  

PubMed Central

The exact treatment of Markovian open quantum systems, when based on numerical diagonalization of the Liouville super-operator or averaging over quantum trajectories, is severely limited by Hilbert space size. Perturbation theory, standard in the investigation of closed quantum systems, has remained much less developed for open quantum systems where a direct application to the Lindblad master equation is desirable. We present such a perturbative treatment which will be useful for an analytical understanding of open quantum systems and for numerical calculation of system observables which would otherwise be impractical.

Li, Andy C. Y.; Petruccione, F.; Koch, Jens

2014-01-01

317

Oligomerized Pool ENgineering (OPEN): An "Open-Source" Protocol for Making Customized Zinc Finger Arrays  

PubMed Central

Engineered zinc finger nucleases (ZFNs) form the basis of a broadly applicable method for targeted, efficient modification of eukaryotic genomes. In recent work, we described OPEN (Oligomerized Pool ENgineering), an “open-source,” combinatorial selection-based method for engineering zinc finger arrays that function well as ZFNs. We have also shown in direct comparisons that the OPEN method has a higher success rate than previously described “modular assembly” methods for engineering ZFNs. OPEN selections are performed in E. coli using a bacterial two-hybrid system and do not require specialized equipment. Here we provide a detailed protocol for performing OPEN to engineer zinc finger arrays that have a high probability of functioning as ZFNs. Using OPEN, researchers can generate multiple customized ZFNs in approximately 8 weeks.

Maeder, Morgan L.; Thibodeau-Beganny, Stacey; Sander, Jeffry D.; Voytas, Daniel F.; Joung, J. Keith

2009-01-01

318

The Emergence of Open-Source Software in China  

ERIC Educational Resources Information Center

The open-source software movement is gaining increasing momentum in China. Of the limited numbers of open-source software in China, "Red Flag Linux" stands out most strikingly, commanding 30 percent share of Chinese software market. Unlike the spontaneity of open-source movement in North America, open-source software development in China, such as…

Pan, Guohua; Bonk, Curtis J.

2007-01-01

319

Subsurface safety valve with lock-open system  

Microsoft Academic Search

A well safety valve is described comprising: a housing having a bore therethrough; a valve mounted in the housing to open and close to control the flow through the bore; an operator tube in the housing for opening the valve; means in the housing for moving the operator tube in a first direction to open and hold the valve open;

R. L. Dickson; R. R. Smith

1986-01-01

320

Publishing in Open Access Education Journals: The Authors' Perspectives  

ERIC Educational Resources Information Center

Open access publishing is now an accepted method of scholarly communication. However, the greatest traction for open access publishing thus far has been in the sciences. Penetration of open access publishing has been much slower among the social sciences. This study surveys 309 authors from recent issues of open access journals in education to…

Coonin, Bryna; Younce, Leigh M.

2010-01-01

321

Compositional Modeling of Reactive Systems Using Open Nets  

Microsoft Academic Search

In order to model the behaviour of open concurrent systems by means of Petri nets, we introduce open Petri nets, a generalization of the ordinary model where some places, designated as open, represent an interface of the system towards the environment. Besides generalizing the token game to reflect this extension, we define a truly concurrent semantics for open nets by

Paolo Baldan; Andrea Corradini; Hartmut Ehrig; Reiko Heckel

2001-01-01

322

The effect of wavelength of light on stomatal opening  

Microsoft Academic Search

The effect of broad band green, blue and red light on stomatal opening of Vicia faba L. (broad bean) leaves was examined. In air, blue light caused greater stomatal opening than red light. In air with green light stomata were only slightly opened. In a nitrogen atmosphere red light caused greater opening than blue light, and green light caused only

Susan Lurie

1978-01-01

323

Open statistical issues in particle physics  

Microsoft Academic Search

Many statistical issues arise in the analysis of Particle Physics experiments. We give a brief introduction to Particle Physics, before describing the techniques used by Particle Physicists for dealing with statistical problems, and also some of the open statistical questions.

Louis Lyons

2008-01-01

324

What Do You Have for Openers?  

ERIC Educational Resources Information Center

Describes some "openers" to use in science class to attract attention, create interest or maintain interest. Some examples of materials that can be used are a radiometer, a drinking bird, Geiger-Muller Counter and a human skeleton. (BR)

Llewellyn, Gerald C.

1975-01-01

325

Software Training Classes Now Open | Poster  

Cancer.gov

Data Management Services, Inc. (DMS), has announced the opening of its spring session of software training classes, available to all employees at NCI at Frederick. Classes begin on March 31 and run through June 30.

326

NCI at Frederick: ATRF Community Open House  

Cancer.gov

Come see the new Advanced Technology Research Facility (ATRF) at a community open house hosted by the Frederick National Laboratory for Cancer Research, operated by SAIC-Frederick on behalf of the National Cancer Institute.

327

Tucker Wireline Open Hole Wireline Logging  

SciTech Connect

The Tucker Wireline unit ran a suite of open hole logs right behind the RMOTC logging contractor for comparison purposes. The tools included Dual Laterolog, Phased Induction, BHC Sonic, and Density-Porosity.

Milliken, M.

2002-05-23

328

Open Cell Fire-Resistant Foam.  

National Technical Information Service (NTIS)

Candidate polyphosphazene polymers were investigated to develop a fire-resistant, thermally stable and flexible open cell foam. The copolymers were prepared in several mole ratios of the substituent side chains and a (nominal) 40:60 derivative was selecte...

J. E. Thompson J. W. Wittman K. A. Reynard

1976-01-01

329

Open Heart Surgery Services, State of Maine.  

National Technical Information Service (NTIS)

The major issues concerning open heart surgery and particularly the coronary artery bypass graft (CABG) operation are examined in this discussion paper. The paper was prepared for use by the members of the Maine Health Systems Agency's Acute Care Subcommi...

1979-01-01

330

Openness versus secrecy? Historical and historiographical remarks.  

PubMed

Traditional historiography of science has constructed secrecy in opposition to openness. In the first part of the paper, I will challenge this opposition. Openness and secrecy are often interlocked, impossible to take apart, and they might even reinforce each other. They should be understood as positive (instead of privative) categories that do not necessarily stand in opposition to each other. In the second part of this paper, I call for a historicization of the concepts of 'openness' and 'secrecy'. Focusing on the early modern period, I briefly introduce three kinds of secrecy that are difficult to analyse with a simple oppositional understanding of openness and secrecy. In particular, I focus on secrecy in relation to esoteric traditions, theatricality and allegory. PMID:23050366

Vermeir, Koen

2012-06-01

331

Laser Trabeculoplasty for Open-Angle Glaucoma.  

National Technical Information Service (NTIS)

In the hands of ophthalmologists experienced in this technology, argon laser trabeculoplasty is an appropriate treatment for open-angle glaucoma which remains uncontrolled despite maximal tolerated medical treatment. In view of its relatively low level of...

E. Feigenbaum

1984-01-01

332

28 CFR 16.202 - Open meetings.  

Code of Federal Regulations, 2013 CFR

...shall be responsible for arranging a suitable site for each open Commission meeting so that ample seating, visibility, and acoustics are provided to the public and ample security measures are employed for the protection of Commissioners and Staff. The...

2013-07-01

333

The Complex Nature of Opening Reference Questions  

ERIC Educational Resources Information Center

The purpose of this study is to review communication theory models and some of the literature from philosophy and linguistics in an attempt to supply a rational explanation for the generality of opening reference questions. (Author)

Eichman, Thomas Lee

1978-01-01

334

Developments in Open Tubular Liquid Chromatography.  

National Technical Information Service (NTIS)

In this report the band broadening introduced by detection flow cell use in open tubular liquid chromatography (OTLC) was thoroughly examined. Serious loss of chromatographic efficiency and resolution can occur if the flow cell size is not properly matche...

J. D. Vargo M. P. Maskarinec M. J. Sepaniak

1984-01-01

335

76 FR 62082 - Notice of Open Meeting  

Federal Register 2010, 2011, 2012, 2013

...PRO) of symptomatic LUTD. C. Discuss the validation and qualification process of new measurement tools, and patient phenotyping. D. Align the new LUTD symptom measurement tool among involved parties. This workshop is free and open to the...

2011-10-06

336

Open Plan Furniture: An Investigation and Analysis  

ERIC Educational Resources Information Center

In attempting to select an open plan furniture system for a client, architects compiled data on available systems, then set up a test area where the systems could be used and evaluated by the personnel. (Author)

Keiser, Hugh M.

1974-01-01

337

A New Look at Parachute Opening Dynamics.  

National Technical Information Service (NTIS)

There is some evidence to indicate that injuries associated with parachute opening shock are much less frequent than injuries associated with the acceleration loads imposed by ejection seats, even though the stresses presumed to be induced in the human bo...

P. R. Payne

1972-01-01

338

Local hyperalimentation of open wounds.  

PubMed

After débridement of necrotized and devitalized tissue in deep burns and large traumatic soft tissue defects, the raw surfaces were covered with separate sheets of viscose cellulose sponge (VCS), each moistened by continuous slow infusion of one of the following solutions: (a) 0-9 per cent NaCl; (b) 10 per cent glucose; (c) Rheomacrodex (dextrane hydrolysate in 0-9 per cent NaCl); (d) 7 per cent Levamin (a mixture of essential amino acids and glycin in 5 per cent sorbitol; (e) a combination of two solutions containing amino acids (Le-7402 A) and glucose, electrolytes and vitamins (Le-7402 B). The cellulose sponges were removed or changed 3-7 days later. Macroscopically, histologically and enzyme histochemically, the most active granulation tissue formation was found under the VCS moistened with amino acid solutions, especially when accompanied by glucose and vitamin supplementation. The results strongly suggest that local cellular hyperalimentation of open raw wound surfaces is possible, permitting a new kind of nutritional support in these patients. PMID:132216

Viljanto, J; Raekallio, J

1976-06-01

339

Open Clients for Distributed Databases  

NASA Astrophysics Data System (ADS)

We are actively developing a collection of open source example clients that demonstrate use of our "back end" data management infrastructure. The data management system is reported elsewhere at this meeting (Arko and Chayes: A Scaleable Database Infrastructure). In addition to their primary goal of being examples for others to build upon, some of these clients may have limited utility in them selves. More information about the clients and the data infrastructure is available on line at http://data.ldeo.columbia.edu. The available examples to be demonstrated include several web-based clients including those developed for the Community Review System of the Digital Library for Earth System Education, a real-time watch standers log book, an offline interface to use log book entries, a simple client to search on multibeam metadata and others are Internet enabled and generally web-based front ends that support searches against one or more relational databases using industry standard SQL queries. In addition to the web based clients, simple SQL searches from within Excel and similar applications will be demonstrated. By defining, documenting and publishing a clear interface to the fully searchable databases, it becomes relatively easy to construct client interfaces that are optimized for specific applications in comparison to building a monolithic data and user interface system.

Chayes, D. N.; Arko, R. A.

2001-12-01

340

Opening up on ELMO regulation  

PubMed Central

GTPases are central hubs for directing cytoskeletal reorganization and cell migration. The DOCK family enforces positive regulation of certain GTPases, leading to their activation in discrete areas of the cell. ELMO, a well-known DOCK180 binding partner, has been cast with the role of potentiating DOCK180-mediated Rac activation. Exactly how ELMO contributes to Rac signaling is only beginning to be understood. Here, we discuss our most recent research investigating ELMO regulation of the DOCK180/Rac pathway. Interestingly, we found that ELMO is autoinhibited via intramolecular contacts at basal levels and we explore the novel domains that we identified at the heart of the auto-regulatory switch. We propose that the closed ELMO molecule masks protein-protein interfaces or domains with novel uncharacterized function; cell stimulation and GTPase binding to ELMO is proposed to activate (open) the protein and/or target the ELMO/DOCK180 complex to the cell membrane. In this manner, promiscuous signaling/activity downstream of ELMO/DOCK180 can be controlled for both spatially and temporally. Additionally, we report new data highlighting that DOCK proteins can form heterodimers, and we discuss possible mechanisms that could be implicated in controlling the ELMO activation state.

Patel, Manishha; Pelletier, Ariane

2011-01-01

341

Open cycle - OTEC turbine design  

NASA Astrophysics Data System (ADS)

The design of a low-pressure, open cycle ocean thermal energy conversion system (OTEC) is described. Near-surface ocean water at 80 F is allowed to expand in a one-half psi evaporator for passage through a turbine; cold water (40 F), pumped upward from a 3,000 ft depth, is used to recondense the steam. Plans for a 2.5-3 MWe prototype plant, as a proof-of-principle project for a 100 MWe plant, include seawater pumps driven off the generator shaft, potable water as a by-product of the condensor, ease of access for O and M, and an integrated, gear-driven deaerator system with reinjection into the warm seawater discharge. An inlet flow of 3,000,000 cu ft/sec, a single stage vertical turbine with 40 ft fiber reinforced composite blades, 200 rpm operation on a 65 ft diameter disk, and an overall efficiency of 3% are features of the 100 MWe plant. A flowfield analysis, a velocity triangle analysis, and a structural dynamics analysis are outlined, along with materials applications and manufacturing process considerations in blade design. The 3MWe OTEC will be one-sixth the size of a 100MWe OTEC.

Coleman, W. H.; Rogers, J. D.; Thompson, D. F.; Young, M. I.

1981-12-01

342

NGC 2112 - A forgotten old open cluster  

NASA Astrophysics Data System (ADS)

A first color-magnitude diagram of the open cluster NGC 2112 is presented. Although the photometry does not reach the main sequence and thus no firm conclusion concerning the age is possible, it turns out that the cluster has to be placed among the oldest open clusters known. Preliminary values for distance and reddening are 800 pc and 0m.5, respectively. Strömgren data of a few stars indicate a metallicity about -1 dex.

Richtler, T.

1985-03-01

343

Fuse and Goasap: Open Source Animation Tools  

Microsoft Academic Search

Since ActionScript 1.0, animation has consistently been one of the most exciting areas of the open source Flash community.\\u000a This chapter looks at two open source libraries I’ve released for coding animation, one for ActionScript 2 and the other for\\u000a ActionScript 3. Each addresses a wide audience and works as a unifying force in different ways. I started with a

Moses Gunesch

344

NGC 2180: A disrupting open cluster?  

Microsoft Academic Search

The spatial dependence of luminosity and mass functions of evolved open clusters is discussed in this work using J and H 2MASS photometry, which allows a wide spatial coverage and proper background determination. The target objects are the intermediate-age open cluster NGC 3680 (l=286.76o and b=16.92o), which has been reported as being in an advanced state of dissolution, and NGC

C. Bonatto; E. Bica; D. B. Pavani

2004-01-01

345

Automatic Multilevel Parallelization Using OpenMP  

NASA Technical Reports Server (NTRS)

In this paper we describe the extension of the CAPO parallelization support tool to support multilevel parallelism based on OpenMP directives. CAPO generates OpenMP directives with extensions supported by the NanosCompiler to allow for directive nesting and definition of thread groups. We report first results for several benchmark codes and one full application that have been parallelized using our system.

Jin, Hao-Qiang; Jost, Gabriele; Yan, Jerry; Ayguade, Eduard; Gonzalez, Marc; Martorell, Xavier; Biegel, Bryan (Technical Monitor)

2002-01-01

346

Metrics and Evolution in Open Source Software  

Microsoft Academic Search

This paper presents an analysis of the evolution of an open source software system, JFreeChart, which is an open source charting library [1], based on its size, fan-in\\/out coupling, and cohesion metrics. We developed JamTool, a Java automated measurement tool [4] to obtain the metrics and to observe the quality change along the evolution of the twenty-two released versions of

Young Lee; Jeong Yang; Kai H. Chang

2007-01-01

347

The open pore conformation of potassium channels  

Microsoft Academic Search

Living cells regulate the activity of their ion channels through a process known as gating. To open the pore, protein conformational changes must occur within a channel's membrane-spanning ion pathway. KcsA and MthK, closed and opened K+ channels, respectively, reveal how such gating transitions occur. Pore-lining `inner' helices contain a `gating hinge' that bends by approximately 30°. In a straight

Youxing Jiang; Alice Lee; Jiayun Chen; Martine Cadene; Brian T. Chait; Roderick MacKinnon

2002-01-01

348

Understanding Requirements for Open Source Software  

Microsoft Academic Search

This study presents findings from an empirical study directed at understanding the roles, forms, and consequences arising\\u000a in requirements for open source software (OSS) development efforts. Five open source software development communities are\\u000a described, examined, and compared to help discover what differences may be observed. At least two dozen kinds of software\\u000a informalisms are found to play a critical role

Walt Scacchi; Thomas Alspaugh

2009-01-01

349

Open architecture controllers for advanced manufacturing  

SciTech Connect

The application of intelligent control systems to the real world of machining and manufacturing will benefit form the presence of open architecture control systems on the machines or the processes. The ability to modify the control system as the process or product changes can be essential to the success of the application of neural net or fuzzy logic controllers. The effort at Los Alamos to obtain a commercially available open architecture machine tool controller is described.

Gore, R.A.

1994-03-01

350

Current Pulse Sharpening by Ferromagnetic Opening Switch  

NASA Astrophysics Data System (ADS)

A controlled system for megampere current pulse sharpening using a ferromagnetic opening switch (FOS) is developed. Control is achieved by an orthogonal magnetic field that is produced by an external source. The system is non-destructive and is especially effective for low inductance solenoids. It produces sharpening multiplicity of 5 - 10 times. FOS can also be used in combination with an electro-explosive opening switch.

Shneerson, G. A.; Efimov, I. P.; Krivosheev, S. I.; Botcharov, Yu. N.

2004-11-01

351

Open-orbit magnetoresistance spectra of potassium  

Microsoft Academic Search

A theory of the open-orbit magnetoresistance of potassium, discovered by Coulter and Datars, is developed. The open orbits caused by the multiple periodicities of a charge-density-wave (CDW) state are derived. Since a single crystal consists of domains, each having its CDW wave vector along one of 24 preferred axes, we employ effective-medium theory to calculate the magnetoresistance rotation pattern. The

M. Huberman; A. W. Overhauser

1982-01-01

352

Open Collaborative Development: Trends, Tools, and Tactics  

Microsoft Academic Search

Following the successful trend of open source, companies can be observed to open their innovation and development processes\\u000a towards interested and capable partners inside and outside the organization. Previous research has neglected the need to integrate\\u000a these different innovators. In this paper, we start to explore how this integration can be facilitated by social software,\\u000a a class of applications that

Kathrin M. Moeslein; Angelika C. Bullinger; Jens Soeldner

2009-01-01

353

Open source drug discovery - a limited tutorial.  

PubMed

Open science is a new concept for the practice of experimental laboratory-based research, such as drug discovery. The authors have recently gained experience in how to run such projects and here describe some straightforward steps others may wish to take towards more openness in their own research programmes. Existing and inexpensive online tools can solve many challenges, while some psychological barriers to the free sharing of all data and ideas are more substantial. PMID:23985301

Robertson, Murray N; Ylioja, Paul M; Williamson, Alice E; Woelfle, Michael; Robins, Michael; Badiola, Katrina A; Willis, Paul; Olliaro, Piero; Wells, Timothy N C; Todd, Matthew H

2014-01-01

354

Tachyon Dynamics in Open String Theory1  

Microsoft Academic Search

In this review we describe our current understanding of the properties of open string tachyons on an unstable D-brane or brane-antibrane system in string theory. The various string theoretic methods used for this study include techniques of two dimensional confor- mal field theory, open string field theory, boundary string field theory, non-commutative solitons etc. We also describe various attempts to

Ashoke Sen

2004-01-01

355

Tachyon Dynamics in Open String Theory  

Microsoft Academic Search

In this review we describe our current understanding of the properties of open string tachyons on an unstable D-brane or brane-antibrane system in string theory. The various string theoretic methods used for this study include techniques of two-dimensional conformal field theory, open string field theory, boundary string field theory, noncommutative solitons, etc. We also describe various attempts to understand these

Ashoke Sen

2005-01-01

356

Open septorhinoplasty: operative technique and grafts.  

PubMed

In this case series, the senior author details his series of patients who had undergone open septorhinoplasty for functional and/or aesthetic purposes in the Otorhinolaryngology Department at the Hospital Universiti Kebangsaan Malaysia (HUKM), Kuala Lumpur between January 2003 and September 2005. There were 23 patients, consisting of 15 men and 8 women from different Malaysian ethnic groups. Discussion on open septorhinoplasty with regards to operative technique, grafts and implants is presented from an otorhinolaryngologist's point of view. PMID:17682563

Gendeh, B S; Tan, Vincent E S

2007-03-01

357

Free and Open Source Software for Development  

Microsoft Academic Search

Development organizations and International Non-Governmental Organizations\\u000ahave been emphasizing the high potential of Free and Open Source Software for\\u000athe Less Developed Countries. Cost reduction, less vendor dependency and\\u000aincreased potential for local capacity development have been their main\\u000aarguments. In spite of its advantages, Free and Open Source Software is not\\u000awidely adopted at the African continent. In this

Victor Van Reijswoud; Arjan De Jager

2008-01-01

358

Laparoscopic vs open approach for Nissen fundoplication  

Microsoft Academic Search

  Background: Several studies, most of them nonrandomized, have shown similar functional results for both laparoscopic and open\\u000a Nissen fundoplication, the operation of choice for the treatment of gastroesophageal reflux disease (GERD). Methods: A total\\u000a of 106 patients with documented GERD were randomized to receive either a laparoscopic or an open Nissen fundoplication. Preoperative\\u000a and postoperative investigations included clinical assessment, esophagogram,

E. Chrysos; J. Tsiaoussis; E. Athanasakis; O. Zoras; J. S. Vassilakis; E. Xynos

2002-01-01

359

Studies of Degraded Smelt Spout Opening Tubes  

SciTech Connect

Co-extruded type 304L stainless steel/SA210 carbon steel tubes have been used on the floors and lower walls of many black liquor recovery boilers to address the wall thinning problem that had been an issue for boiler owners and operators. Use of these tubes greatly reduced the corrosion issue, but corrosion was still sometimes observed and cracking was discovered in some tubes, particularly those that are bent to form the openings for smelt spouts. Because cracks in the opening tubes were sometimes observed to extend a significant distance into the tube wall and because these cracks were found fairly frequently, tubes made from a number of alternate cladding materials were tried in place of the 304L clad opening tubes. This paper describes the results of examinations of spout opening tubes of the standard 304L/carbon steel and of several of the alternate materials that have been tried. In addition to the corrosion and cracking seen in the spout opening tubes, another issue associated with these tubes has been observed. Preferential corrosion of the cap welds is sometimes seen on butt welds attaching the spout opening tubes made with alternate cladding materials to the standard 304L/carbon steel co-extruded wall tubes. Some information on the observations of this corrosion is also included in this paper.

Keiser, James R [ORNL; Kish, Joseph R. [Paprican; Willoughby, Adam W [ORNL; Longmire, Hu Foster [ORNL; Singbeil, Douglas [Paprican

2007-01-01

360

Dragon: A Static and Dynamic Tool for OpenMP  

Microsoft Academic Search

A program analysis tool can play an important role in helping users understand and improve OpenMP codes. Dragon is a robust interactive program analysis tool based on the Open64 compiler, an open source OpenMP, C\\/C++\\/Fortran77\\/90 compiler for Intel Itanium systems. We developed the Dragon tool on top of Open64 to exploit its powerful analyses in order to pro- vide static

Oscar Hernandez; Chunhua Liao; Barbara M. Chapman

2004-01-01

361

Publishing in open access era: focus on respiratory journals  

PubMed Central

We have entered an open access publishing era. The impact and significance of open access is still under debate after two decades of evolution. Open access journals benefit researchers and the general public by promoting visibility, sharing and communicating. Non-mainstream journals should turn the challenge of open access into opportunity of presenting best research articles to the global readership. Open access journals need to optimize their business models to promote the healthy and continuous development.

Xu, Dingyao; Zhong, Xiyao; Li, Li; Ling, Qibo; Bu, Zhaode

2014-01-01

362

Publishing in open access era: focus on respiratory journals.  

PubMed

We have entered an open access publishing era. The impact and significance of open access is still under debate after two decades of evolution. Open access journals benefit researchers and the general public by promoting visibility, sharing and communicating. Non-mainstream journals should turn the challenge of open access into opportunity of presenting best research articles to the global readership. Open access journals need to optimize their business models to promote the healthy and continuous development. PMID:24822120

Dai, Ni; Xu, Dingyao; Zhong, Xiyao; Li, Li; Ling, Qibo; Bu, Zhaode

2014-05-01

363

Exchange flow through an opening Echange de fluide à travers une ouverture  

Microsoft Academic Search

This paper presents a theoretical and experimental study of the exchange of fluids of different densities through an opening. Three types of openings are examined: a bottom opening (the opening is at the bottom of a gate), a middle opening (in the middle) and a window opening (the opening is in the middle but does not extend across the width).

DAVID Z. ZHU; HESHAM FOULI; YAW A. OKYERE

2002-01-01

364

Open Governance in Higher Education: Extending the Past to the Future  

ERIC Educational Resources Information Center

Open educational resources, open content, open access, open research, open courseware--all of these open initiatives share, and benefit from, a vision of access and a collaborative framework that often result in improved outcomes. Many of these open initiatives have gained adoption within higher education and are now serving in mission-critical…

Masson, Patrick

2011-01-01

365

Defining Openness: Updating the Concept of "Open" for a Connected World  

ERIC Educational Resources Information Center

The release of free resources by the education sector has led to reconsideration of how the open approach implied by Open Educational Resources (OER) impacts on the educator and the learner. However this work has tended to consider the replication of standard campus based approaches and the characteristics of content that will encourage other…

McAndrew, Patrick

2010-01-01

366

Open Schooling: Why Open Schools Are Re-Emerging as a New Model  

ERIC Educational Resources Information Center

Open schools are not just concerned with increasing access to secondary schooling, but also with equalising educational opportunities for citizens regardless of their geographic location or socio-economic background. Through a well-articulated policy, broad consensus on the most appropriate direction for the future development of open schooling…

Commonwealth of Learning, 2010

2010-01-01

367

The Need for Participation in Open and Distance Education: The Open University Malaysia Experience  

ERIC Educational Resources Information Center

This paper provides an overview of adult learner participation in open and distance education by focusing participation needs based on selected socio-demographic variables such as age, years of working experience and monthly income. The related study involved a sample of 454 Open University Malaysia students from a number of learning centres…

Raghavan, Santhi; Kumar, P. Rajesh

2007-01-01

368

Open Classroom: Distance Learning In and Out of Schools. Open and Distance Learning Series.  

ERIC Educational Resources Information Center

This collection of essays, which is separated into 4 sections, concerns open and distance learning at school level, or grades K-12. The first section, "The Knowledge Society," includes the following chapters: "Classroom Open Learning: A Case of Old Wine in New Bottles?" (Jenkins); "Living and Learning in the Information Age: From the School to…

Bradley, Jo, Ed.

369

The OpenCourseWare Model: High-Impact Open Educational Content  

ERIC Educational Resources Information Center

OpenCourseWare (OCW) is one among several models for offering open educational resources (OER). This article explains the OCW model and its position within the broader OER context. OCW primarily represents publication of existing course materials already in use for teaching purposes. OCW projects are most often institutional, carrying the…

Carson, Stephen

2007-01-01

370

Baloon-lofted pollutant sampling of open burning and open detonation: abstract  

EPA Science Inventory

The U.S. EPA has developed a balloon-lofted, ~10 kg instrument pack for sampling open burning (OB) and open detonation (OD) events for pollutants. The instrument pack, termed the ?Flyer,? and its accompanying maneuverable balloon system, are intended to sample OB/OD plumes to de...

371

OpenDA: Open Source Generic Data Assimilation Environment and its Application in Geophysical Process Models  

NASA Astrophysics Data System (ADS)

Data Assimilation techniques are essential elements in state-of-the-art development of models and their use in operational forecasting and real-time control in the fields of groundwater, surface water and soil systems. In meteorological and atmospheric sciences, steady improvements in numerical weather forecasting and climate prediction over the last couple of decades have been enabled to a large degree by the development of community-based models and data assimilation systems. The hydrologic community should learn from the experiences of the meteorological and atmospheric communities by accelerating the transition of hydrologic DA research into operations and developing community-supported, open-source modeling and forecasting systems and data assimilation tools. In 2010, a community based open source initiative named OpenDA was started. The openDA initiative bears similarities with the well-known openMI initiative. OpenDA makes use of a set of interfaces that describe the interaction between models, observations and data assimilation algorithms. It focuses on flexible applications in portable systems for modeling geophysical processes. It provides a generic interfacing protocol that allows combination of the implemented data assimilation techniques with, in principle, any time-stepping model describing a process (atmospheric processes, 3D circulation, 2D water flow, rainfall-runoff, unsaturated flow, groundwater flow, etc.). Presently, openDA features filtering techniques and calibration techniques. The presentation will give an overview of openDA and the results of some of its practical applications.

Weerts, A.; van Velzen, N.; Verlaan, M.; Sumihar, J.; Hummel, S.; El Serafy, G.; Dhondia, J.; Gerritsen, H.; Vermeer-Ooms, S.; Loots, E.; Markus, A.; Kockx, A.

2011-12-01

372

Scalable open architecture project (SOAP) avionics evolution from Federated to Open Systems  

Microsoft Academic Search

The Scalable Open Architecture Project (SOAP) of NAVAIR's Maritime Avionics Subsystems and Technologies (MAST) Program was established in 1996 to demonstrate how to evolve existing aircraft from federated to advanced scalable open systems through incremental system upgrades making maximum use of COTS technology. This project is a multiyear effort with a series of laboratory demonstrations that transform existing federated avionics

J. Ozols

1997-01-01

373

Opening up down under: The Role of Open Educational Resources in Promoting Social Inclusion in Australia  

ERIC Educational Resources Information Center

This article discusses the role of open and distance learning to widen participation and promote social inclusion within Australian higher education, as well as the benefits that open educational resources (OER) could bring to that context. It also explores some of the most relevant social inclusion policies and related initiatives developed in…

Bossu, Carina; Bull, David; Brown, Mark

2012-01-01

374

Course Evaluation in Open and Distance Learning: A Case Study from Indira Gandhi National Open University  

ERIC Educational Resources Information Center

The success of any open and distance learning course depends on how well it is designed, executed, and evaluated. Evaluation of a course not only demonstrates its strengths, but also points out any inherent shortcomings in the course. This is why course evaluation constitutes an important function in an open and distance learning system. The…

Gaba, Ashok K.; Dash, Nirod K.

2004-01-01

375

Open Set face recognition using transduction.  

PubMed

This paper motivates and describes a novel realization of transductive inference that can address the Open Set face recognition task. Open Set operates under the assumption that not all the test probes have mates in the gallery. It either detects the presence of some biometric signature within the gallery and finds its identity or rejects it, i.e., it provides for the "none of the above" answer. The main contribution of the paper is Open Set TCM-kNN (Transduction Confidence Machine-k Nearest Neighbors), which is suitable for multiclass authentication operational scenarios that have to include a rejection option for classes never enrolled in the gallery. Open Set TCM-kNN, driven by the relation between transduction and Kolmogorov complexity, provides a local estimation of the likelihood ratio needed for detection tasks. We provide extensive experimental data to show the feasibility, robustness, and comparative advantages of Open Set TCM-kNN on Open Set identification and watch list (surveillance) tasks using challenging FERET data. Last, we analyze the error structure driven by the fact that most of the errors in identification are due to a relatively small number of face patterns. Open Set TCM-kNN is shown to be suitable for PSEI (pattern specific error inhomogeneities) error analysis in order to identify difficult to recognize faces. PSEI analysis improves biometric performance by removing a small number of those difficult to recognize faces responsible for much of the original error in performance and/or by using data fusion. PMID:16285369

Li, Fayin; Wechsler, Harry

2005-11-01

376

Web Server Security on Open Source Environments  

NASA Astrophysics Data System (ADS)

Administering critical resources has never been more difficult that it is today. In a changing world of software innovation where major changes occur on a daily basis, it is crucial for the webmasters and server administrators to shield their data against an unknown arsenal of attacks in the hands of their attackers. Up until now this kind of defense was a privilege of the few, out-budgeted and low cost solutions let the defender vulnerable to the uprising of innovating attacking methods. Luckily, the digital revolution of the past decade left its mark, changing the way we face security forever: open source infrastructure today covers all the prerequisites for a secure web environment in a way we could never imagine fifteen years ago. Online security of large corporations, military and government bodies is more and more handled by open source application thus driving the technological trend of the 21st century in adopting open solutions to E-Commerce and privacy issues. This paper describes substantial security precautions in facing privacy and authentication issues in a totally open source web environment. Our goal is to state and face the most known problems in data handling and consequently propose the most appealing techniques to face these challenges through an open solution.

Gkoutzelis, Dimitrios X.; Sardis, Manolis S.

377

Relaxation of spheromak configurations with open flux  

SciTech Connect

The relaxation of several kink unstable equilibria with open flux representative of spheromaks sustained by dc helicity injection is studied by means of three-dimensional, resistive magnetohydrodynamic simulations. No external driving is applied, but the initial conditions are chosen to reproduce the current profiles existing in a gun driven spheromak, which has a high current density in the open flux region and a low current density in the closed flux region. The growth and nonlinear saturation of various unstable modes, the dynamo action which converts toroidal flux into poloidal flux, and the evolution of the {lambda} profile ({lambda}={mu}{sub 0}J{center_dot}B/B{sup 2}) are studied. An initial condition is found which results in a dynamo that produces enough poloidal flux to compensate the resistive losses occurred during a characteristic time of the instability. The flux amplification factor around which this case oscillates is consistent with existing experimental data. During the relaxation, the central open flux tube develops a helical distortion and the closed flux surfaces are destroyed. After the relaxation event, close flux surfaces form again but the final profiles are not fully relaxed and the central open flux tube remains distorted. The effect of the Lundquist number on the evolution and its impact on the required level of fluctuations are evaluated. Finally, the dynamics of the system for different current levels in the open flux region is studied.

Garcia-Martinez, Pablo Luis; Farengo, Ricardo [Centro Atomico Bariloche (CNEA) and Instituto Balseiro (UNCuyo-CNEA), Bariloche, Rio Negro 8400 (Argentina)

2009-11-15

378

OpenFLUID: an open-source software environment for modelling fluxes in landscapes  

NASA Astrophysics Data System (ADS)

Integrative landscape functioning has become a common concept in environmental management. Landscapes are complex systems where many processes interact in time and space. In agro-ecosystems, these processes are mainly physical processes, including hydrological-processes, biological processes and human activities. Modelling such systems requires an interdisciplinary approach, coupling models coming from different disciplines, developed by different teams. In order to support collaborative works, involving many models coupled in time and space for integrative simulations, an open software modelling platform is a relevant answer. OpenFLUID is an open source software platform for modelling landscape functioning, mainly focused on spatial fluxes. It provides an advanced object-oriented architecture allowing to i) couple models developed de novo or from existing source code, and which are dynamically plugged to the platform, ii) represent landscapes as hierarchical graphs, taking into account multi-scale, spatial heterogeneities and landscape objects connectivity, iii) run and explore simulations in many ways : using the OpenFLUID software interfaces for users (command line interface, graphical user interface), or using external applications such as GNU R through the provided ROpenFLUID package. OpenFLUID is developed in C++ and relies on open source libraries only (Boost, libXML2, GLib/GTK, OGR/GDAL, …). For modelers and developers, OpenFLUID provides a dedicated environment for model development, which is based on an open source toolchain, including the Eclipse editor, the GCC compiler and the CMake build system. OpenFLUID is distributed under the GPLv3 open source license, with a special exception allowing to plug existing models licensed under any license. It is clearly in the spirit of sharing knowledge and favouring collaboration in a community of modelers. OpenFLUID has been involved in many research applications, such as modelling of hydrological network transfer, diagnosis and prediction of water quality taking into account human activities, study of the effect of spatial organization on hydrological fluxes, modelling of surface-subsurface water exchanges, … At LISAH research unit, OpenFLUID is the supporting development platform of the MHYDAS model, which is a distributed model for agrosystems (Moussa et al., 2002, Hydrological Processes, 16, 393-412). OpenFLUID web site : http://www.openfluid-project.org

Fabre, Jean-Christophe; Rabotin, Michaël; Crevoisier, David; Libres, Aline; Dagès, Cécile; Moussa, Roger; Lagacherie, Philippe; Raclot, Damien; Voltz, Marc

2013-04-01

379

Geometric phases in open tripod systems  

SciTech Connect

We first consider stimulated Raman adiabatic passages in a closed four-level tripod system. In this case, the adiabatic eigenstates of the system acquire real geometric phases. When the system is open and subject to decoherence they acquire complex geometric phases that we determine by a Monte Carlo wave function approach. We calculate the geometric phases and the state evolution in the closed as well as in the open system cases and describe the deviation between these in terms of the phases acquired. When the system is closed, the adiabatic evolution implements a Hadamard gate. The open system implements an imperfect gate and hence has a fidelity below unity. We express this fidelity in terms of the acquired geometric phases.

Moeller, Ditte; Madsen, Lars Bojer; Moelmer, Klaus [Lundbeck Foundation Theoretical Center for Quantum System Research, Department of Physics and Astronomy, University of Aarhus, DK-8000 (Denmark)

2008-02-15

380

Open optical links in data transmission  

NASA Astrophysics Data System (ADS)

Wireless optical fiber links are the basic means of data transmission between movable objects. Radio links dominate in remote transmission. By means of open optical fiber links, it is possible to transmit data over short distances between objects. Depending on the technology used, it is possible to connect transmitting-receiving systems distant from one another by approximately twenty cm to twenty meters. Basic problems accompanying transmission to open optical links include the need for direct or indirect sensing of optical radiation from the emitter by the detector and the inherent propensity for interference. Among its advantages are: the possibility of obtaining greater data transmission speeds and an ease in changing direction, the difficulty posed to unwanted remote "viewing", and the miniaturization of links. This paper presents basic open configurations of optical links used in data transmission with selected time-varying signals. Using remote transmission of data between a computer and mobile minirobot is shown.

Wiczynski, Grzegorz

2003-09-01

381

Hydraulically controlled discrete sampling from open boreholes.  

PubMed

Groundwater sampling from open boreholes in fractured-rock aquifers is particularly challenging because of mixing and dilution of fluid within the borehole from multiple fractures. This note presents an alternative to traditional sampling in open boreholes with packer assemblies. The alternative system called ZONFLO (zonal flow) is based on hydraulic control of borehole flow conditions. Fluid from discrete fractures zones are hydraulically isolated allowing for the collection of representative samples. In rough-faced open boreholes and formations with less competent rock, hydraulic containment may offer an attractive alternative to physical containment with packers. Preliminary test results indicate a discrete zone can be effectively hydraulically isolated from other zones within a borehole for the purpose of groundwater sampling using this new method. PMID:24107011

Harte, Philip T

2013-01-01

382

Geometric phases in open tripod systems  

NASA Astrophysics Data System (ADS)

We first consider stimulated Raman adiabatic passages in a closed four-level tripod system. In this case, the adiabatic eigenstates of the system acquire real geometric phases. When the system is open and subject to decoherence they acquire complex geometric phases that we determine by a Monte Carlo wave function approach. We calculate the geometric phases and the state evolution in the closed as well as in the open system cases and describe the deviation between these in terms of the phases acquired. When the system is closed, the adiabatic evolution implements a Hadamard gate. The open system implements an imperfect gate and hence has a fidelity below unity. We express this fidelity in terms of the acquired geometric phases.

Møller, Ditte; Madsen, Lars Bojer; Mølmer, Klaus

2008-02-01

383

Method for making generally cylindrical underground openings  

DOEpatents

A rapid, economical and safe method for making a generally cylindrical underground opening such as a shaft or a tunnel is described. A borehole is formed along the approximate center line of where it is desired to make the underground opening. The borehole is loaded with an explodable material and the explodable material is detonated. An enlarged cavity is formed by the explosive action of the detonated explodable material forcing outward and compacting the original walls of the borehole. The enlarged cavity may be increased in size by loading it with a second explodable material, and detonating the second explodable material. The process may be repeated as required until the desired underground opening is made. The explodable material used in the method may be free-flowing, and it may be contained in a pipe.

Routh, J.W.

1983-05-26

384

Mapping DICOM to OpenDocument format  

NASA Astrophysics Data System (ADS)

In order to enhance the readability, extensibility and sharing of DICOM files, we have introduced XML into DICOM file system (SPIE Volume 5748)[1] and the multilayer tree structure into DICOM (SPIE Volume 6145)[2]. In this paper, we proposed mapping DICOM to ODF(OpenDocument Format), for it is also based on XML. As a result, the new format realizes the separation of content(including text content and image) and display style. Meanwhile, since OpenDocument files take the format of a ZIP compressed archive, the new kind of DICOM files can benefit from ZIP's lossless compression to reduce file size. Moreover, this open format can also guarantee long-term access to data without legal or technical barriers, making medical images accessible to various fields.

Yu, Cong; Yao, Zhihong

2009-02-01

385

Physicochemical insight into gap openings in graphene  

PubMed Central

Based on a newly developed size-dependent cohesive energy formula for two-dimensional materials, a unified theoretical model was established to illustrate the gap openings in disordered graphene flakes, involving quantum dots, nanoribbons and nanoporous sheets. It tells us that the openings are essentially dominated by the variation in cohesive energy of C atoms, associated to the edge physicochemical nature regarding the coordination imperfection or the chemical bonding. In contrast to those ideal flakes, consequently, the gaps can be opened monotonously for disordered flakes on changing their sizes, affected by the dimension, geometric shape and the edge saturation. Using the density functional theory, accordingly, the electronic structures of disordered flakes differ to the ideal case because of the edge disorder. Our theoretical predictions have been validated by available experimental results, and provide us a distinct way for the quantitative modulation of bandgap in graphene for nanoelectronics.

Zhu, Y. F.; Dai, Q. Q.; Zhao, M.; Jiang, Q.

2013-01-01

386

Peripheral arterial aneurysms: open or endovascular surgery?  

PubMed

Peripheral arterial aneurysms are uncommon; for some aneurysm types, data are limited to case reports and small case series. There is no Level A evidence in most cases to determine the choice between open or endovascular intervention. The evolution of endovascular technology has vastly improved the armamentarium available to the vascular surgeon and interventionalists in the management of these rare and unusual aneurysms. The choice of operative approach will ultimately be determined on an individual basis, dependent on the patient risk factors, and aneurysm anatomy. After consideration, some aneurysms (femoral, subclavian, carotid and ECAA) fare better with an open first approach; renal, splenic and some visceral artery aneurysms do better with an endovascular first approach. In our practice PAAs are treated with an endovascular first approach. For these rare conditions, both open and endovascular therapy will continue to work in harmony to enhance and extend the capabilities of modern surgical management. PMID:23993237

Mohan, Irwin V; Stephen, Michael S

2013-01-01

387

Advanced emergency openings for commercial aircraft  

NASA Technical Reports Server (NTRS)

Explosively actuated openings in composite panels are proposed to enhance passenger survivability within commercial aircraft by providing improvements in emergency openings, fuselage venting, and fuel dump. The concept is to embed a tiny, highly stable explosive cord in the periphery of a load-carrying composite panel; on initiation of the cord, the panel is fractured to create a well-defined opening. The panel would be installed in the sides of the fuselage for passenger egress, in the top of the fuselage for smoke venting, and in the bottoms of the fuel cells for fuel dump. Described are the concerns with the use of explosive systems, safety improvements, advantages, experimental results, and recommended approach to gain acceptance and develop this concept.

Bement, L. J.; Schimmel, M. L.

1985-01-01

388

Physicochemical insight into gap openings in graphene.  

PubMed

Based on a newly developed size-dependent cohesive energy formula for two-dimensional materials, a unified theoretical model was established to illustrate the gap openings in disordered graphene flakes, involving quantum dots, nanoribbons and nanoporous sheets. It tells us that the openings are essentially dominated by the variation in cohesive energy of C atoms, associated to the edge physicochemical nature regarding the coordination imperfection or the chemical bonding. In contrast to those ideal flakes, consequently, the gaps can be opened monotonously for disordered flakes on changing their sizes, affected by the dimension, geometric shape and the edge saturation. Using the density functional theory, accordingly, the electronic structures of disordered flakes differ to the ideal case because of the edge disorder. Our theoretical predictions have been validated by available experimental results, and provide us a distinct way for the quantitative modulation of bandgap in graphene for nanoelectronics. PMID:23524635

Zhu, Y F; Dai, Q Q; Zhao, M; Jiang, Q

2013-01-01

389

Evaluation of OPEN PLAN software: Final report  

SciTech Connect

In fulfilling the objectives of the contract to evaluate the suitability of the OPEN PLAN software system to process existing Environmental Restoration (ER) data, Jacobs Engineering Group (JEG) divided the effort into seven discrete tasks. Overall results of the tasks performed demonstrated that OPEN PLAN could be used in conjunction with the currently used TIMELINE to provide resource leveling and meet all reporting requirements. The OPEN PLAN report generator could automatically produce reports which were equivalent to existing ER cost reports being produced manually or by spreadsheet. User documentation was provided and on-site training was performed. The result of the cost and schedule tracking support was the creation of new spreadsheet based reports using TIMELINE and LOTUS 1-2-3. Some additional modifications may need to be made to incorporate installation specific needs as well as any changes in reporting requirements.

Not Available

1991-03-05

390

Opening the Shaker K+ channel with hanatoxin  

PubMed Central

Voltage-activated ion channels open and close in response to changes in membrane voltage, a property that is fundamental to the roles of these channels in electrical signaling. Protein toxins from venomous organisms commonly target the S1–S4 voltage-sensing domains in these channels and modify their gating properties. Studies on the interaction of hanatoxin with the Kv2.1 channel show that this tarantula toxin interacts with the S1–S4 domain and inhibits opening by stabilizing a closed state. Here we investigated the interaction of hanatoxin with the Shaker Kv channel, a voltage-activated channel that has been extensively studied with biophysical approaches. In contrast to what is observed in the Kv2.1 channel, we find that hanatoxin shifts the conductance–voltage relation to negative voltages, making it easier to open the channel with membrane depolarization. Although these actions of the toxin are subtle in the wild-type channel, strengthening the toxin–channel interaction with mutations in the S3b helix of the S1-S4 domain enhances toxin affinity and causes large shifts in the conductance–voltage relationship. Using a range of previously characterized mutants of the Shaker Kv channel, we find that hanatoxin stabilizes an activated conformation of the voltage sensors, in addition to promoting opening through an effect on the final opening transition. Chimeras in which S3b–S4 paddle motifs are transferred between Kv2.1 and Shaker Kv channels, as well as experiments with the related tarantula toxin GxTx-1E, lead us to conclude that the actions of tarantula toxins are not simply a product of where they bind to the channel, but that fine structural details of the toxin–channel interface determine whether a toxin is an inhibitor or opener.

Milescu, Mirela; Lee, Hwa C.; Bae, Chan Hyung; Kim, Jae Il

2013-01-01

391

Open cellular structure in marine stratocumulus sheets  

SciTech Connect

Geostationary and sunsynchronous satellite data and in-situ observations from ship cruises are used to investigate the formation of open cellular structure in marine stratocumulus clouds over the Southeast Pacific (SEP). Open cellular convection either forms spontaneously as pockets of open cells (POCs) within overcast stratocumulus, or is advected into the region from midlatitude regions. POC formation occurs most frequently during the latter part of the night demonstrating that this transition is not caused by solar absorption-driven decoupling. The transition preferentially occurs in clouds with low 11-3.7 microns nighttime brightness temperature difference (BTD) which is found to be well correlated with both in-situ measured accumulation mode aerosol concentration and cloud droplet concentration estimates derived from MODIS. Besides indicating that night time BTD is an excellent proxy for stratocumulus cloud droplet concentration Nd, this also suggests that low aerosol concentrations favor POC formation. Indeed, extremely low accumulation mode aerosol concentrations are found during the passage of open cell events over the ship. Free-tropospheric moisture is not found to be an important factor in POC formation. Significant subseasonal variability occurs in the fractional coverage of open cellular convection over the broader SEP. This coverage is well correlated with a MODIS-derived drizzle proxy (MDP) proportional to the ratio of liquid water path (LWP) to Nd for predominantly overcast regions. Both LWP and Nd variability influences the MDP. Periods of low MDP have significant positive large scale Nd anomalies and are preceded byoffshore winds at 850 hPa, which suggests a potential continental influence upon open cell formation over the SEP. Together, the results suggest important two-way interactions between aerosols and drizzle in marine stratocumulus and a role for drizzle in modulating the large scale albedo of these cloud systems.

Wood, Robert; Comstock, K. K.; Bretherton, Christopher S.; Cornish, C.; Tomlinson, Jason M.; Collins, Donald R.; Fairall, C.

2008-06-25

392

OSIRIX: open source multimodality image navigation software  

NASA Astrophysics Data System (ADS)

The goal of our project is to develop a completely new software platform that will allow users to efficiently and conveniently navigate through large sets of multidimensional data without the need of high-end expensive hardware or software. We also elected to develop our system on new open source software libraries allowing other institutions and developers to contribute to this project. OsiriX is a free and open-source imaging software designed manipulate and visualize large sets of medical images: http://homepage.mac.com/rossetantoine/osirix/

Rosset, Antoine; Pysher, Lance; Spadola, Luca; Ratib, Osman

2005-04-01

393

[Open septum rhinoplasty; results in 80 patients].  

PubMed

Corrective rhinoplasty may be performed in two ways. With the traditional endonasal approach the incisions are made on the inside of the nose. The open technique uses an incision made on the outside of the nose, in the columella. This affords better insight into the surgical anatomy than the endonasal approach. It is concluded from the literature and from experiences in 80 patients that the advantages of the open technique more than compensate for the (avoidable) risks such as impaired wound healing and an ugly scar. PMID:2374616

Zijlker, T D; Vuyk, H D

1990-07-01

394

Connexin-43 hemichannels opened by metabolic inhibition.  

PubMed

The cause of altered ionic homeostasis leading to cell death during ischemia and metabolic inhibition is unclear. Hemichannels, which are precursors to gap junctions, are nonselective ion channels that are permeable to molecules of less than Mr 1000. We show that hemichannels open upon exposure to calcium-free solutions when they are either heterologously overexpressed in HEK293 cells or endogenously expressed in cardiac ventricular myocytes. In the presence of normal extracellular calcium, hemichannels open during metabolic inhibition. During ischemia and other forms of metabolic inhibition, activation of relatively few hemichannels will seriously compromise the cell's ability to maintain ionic homeostasis, which is an essential step promoting cell death. PMID:9867835

John, S A; Kondo, R; Wang, S Y; Goldhaber, J I; Weiss, J N

1999-01-01

395

Open Hardware for CERN's accelerator control systems  

NASA Astrophysics Data System (ADS)

The accelerator control systems at CERN will be upgraded and many electronics modules such as analog and digital I/O, level converters and repeaters, serial links and timing modules are being redesigned. The new developments are based on the FPGA Mezzanine Card, PCI Express and VME64x standards while the Wishbone specification is used as a system on a chip bus. To attract partners, the projects are developed in an `Open' fashion. Within this Open Hardware project new ways of working with industry are being evaluated and it has been proven that industry can be involved at all stages, from design to production and support.

van der Bij, E.; Serrano, J.; Wlostowski, T.; Cattin, M.; Gousiou, E.; Alvarez Sanchez, P.; Boccardi, A.; Voumard, N.; Penacoba, G.

2012-01-01

396

Open Educational Resources Commons: Mathematics and Statistics  

NSDL National Science Digital Library

Open Educational Resources (OER) Commons is an open network of course materials and other educational resources, for all levels, that are freely available online for the use of educators, students, and self-learners. Materials include full courses, course modules, syllabi, lectures, homework assignments, quizzes, lab and classroom activities, pedagogical materials, games, simulations, and many other items. The mathematics and statistics section of OER Commons provides access to thousands of resources in all areas of math and statistics. Each resource is accompanied by metadata, including type, subject, grade level, a rating, and other types of information. Users are also invited to submit resources for others to share.

397

Open Access: From Myth to Paradox  

ScienceCinema

True open access to scientific publications not only gives readers the possibility to read articles without paying subscription, but also makes the material available for automated ingestion and harvesting by 3rd parties. Once articles and associated data become universally treatable as computable objects, openly available to 3rd party aggregators and value-added services, what new services can we expect, and how will they change the way that researchers interact with their scholarly communications infrastructure? I will discuss straightforward applications of existing ideas and services, including citation analysis, collaborative filtering, external database linkages, interoperability, and other forms of automated markup, and speculate on the sociology of the next generation of users.

Paul Ginsparg

2010-01-08

398

Open descendants of non-diagonal invariants  

NASA Astrophysics Data System (ADS)

The open descendants of simple current automorphism invariants are constructed. We consider the case where the order of the current is two or odd. We prove that our solutions satisfy the completeness conditions, positivity and integrality of the open and closed sectors and the Klein bottle constraint (apart from an interesting exception). In order to do this, we derive some new relations between the tensor Y and the fixed point conformal field theory. Some non-standard Klein bottle projections are considered as well.

Huiszoon, L. R.; Schellekens, A. N.; Sousa, N.

2000-05-01

399

Semiclassical wave functions for open quantum billiards.  

PubMed

We present a semiclassical approximation to the scattering wave function ?(r,k) for an open quantum billiard, which is based on the reconstruction of the Feynman path integral. We demonstrate its remarkable numerical accuracy for the open rectangular billiard and show that the convergence of the semiclassical wave function to the full quantum state is controlled by the mean path length or equivalently the dwell time for a given scattering state. In the numerical implementation a cutoff length in the maximum path length or, equivalently, a maximum dwell time ?(max) included implies a finite energy resolution ?E~?(max)(-1). Possible applications include leaky billiards and systems with decoherence present. PMID:24032910

Lackner, Fabian; B?ezinová, Iva; Burgdörfer, Joachim; Libisch, Florian

2013-08-01

400

Open Educational Resources Commons: Science and Technology  

NSDL National Science Digital Library

Open Educational Resources (OER) Commons is an open network of course materials and other educational resources, for all levels, that are freely available online for the use of educators, students, and self-learners. Materials include full courses, course modules, syllabi, lectures, homework assignments, quizzes, lab and classroom activities, pedagogical materials, games, simulations, and many other items. The science and technology section of OER Commons provides access to thousands of resources in all areas of science and technology. Each resource is accompanied by metadata, including type, subject, grade level, a rating, and other kinds of information. Users are also invited to submit resources for others to share.

401

Popliteal artery aneurysm: when open, when endo?  

PubMed

The purpose of this article was to obtain a more clear view in the management of popliteal artery aneurysms (PAAs). When do we need to treat it and how is it best treated? After going through multiple review articles and case reports concerning this matter, we came to the following conclusions. Repair of a PAA is indicated when it reaches a postero-anterior diameter of 3 cm (at higher risk for thrombosis) or becomes symptomatic (mild claudication or severe ischemic symptoms). Whether the repair is then performed in an endovascular (Endovascular repair) or open way (Open repair), depends on the personal experience and clinical evaluation of the surgeon. PMID:24796918

Gallala, S; Verbist, J; Van Den Eynde, W; Peeters, P

2014-04-01

402

Whispering gallery modes in open quantum billiards.  

PubMed

The poles of the S matrix and the wave functions of open two-dimensional quantum billiards with convex boundary of different shape are calculated by using the method of complex scaling. Two leads are attached to the cavities. The conductance of the cavities is calculated at energies with one, two, and three open channels in each lead. Bands of overlapping resonance states appear that are localized along the convex boundary of the cavities and contribute coherently to the conductance. These bands correspond to the whispering gallery modes known from classical calculations. PMID:11736061

Nazmitdinov, R G; Pichugin, K N; Rotter, I; Seba, P

2001-11-01

403

Open Access: From Myth to Paradox  

SciTech Connect

True open access to scientific publications not only gives readers the possibility to read articles without paying subscription, but also makes the material available for automated ingestion and harvesting by 3rd parties. Once articles and associated data become universally treatable as computable objects, openly available to 3rd party aggregators and value-added services, what new services can we expect, and how will they change the way that researchers interact with their scholarly communications infrastructure? I will discuss straightforward applications of existing ideas and services, including citation analysis, collaborative filtering, external database linkages, interoperability, and other forms of automated markup, and speculate on the sociology of the next generation of users.

Ginsparg, Paul (Cornell University) [Cornell University

2009-05-06

404

The principles of managing open fractures.  

PubMed

Any fracture of a bone which communicates with the outside environment via a wound in the skin is classified as an open fracture. This may be from penetration by sharp objects from the exterior, laceration caused by the fracture fragments, or shearing forces that tear or de-glove soft tissue from a limb. These injuries vary in mechanism and severity, ranging from a broken finger caught in a bulkhead door to a catastrophic lower limb fracture suffered from an improvised explosive device (IED). We address the management principles that can be applied to all open fractures regardless of cause. PMID:24881422

Walker, R; Middleton, S; Stapley, S A

2014-01-01

405

Semiclassical wave functions for open quantum billiards  

NASA Astrophysics Data System (ADS)

We present a semiclassical approximation to the scattering wave function ?(r,k) for an open quantum billiard, which is based on the reconstruction of the Feynman path integral. We demonstrate its remarkable numerical accuracy for the open rectangular billiard and show that the convergence of the semiclassical wave function to the full quantum state is controlled by the mean path length or equivalently the dwell time for a given scattering state. In the numerical implementation a cutoff length in the maximum path length or, equivalently, a maximum dwell time ?max included implies a finite energy resolution ?E˜?max-1. Possible applications include leaky billiards and systems with decoherence present.

Lackner, Fabian; B?ezinová, Iva; Burgdörfer, Joachim; Libisch, Florian

2013-08-01

406

15 CFR 2003.5 - Information open to public inspection.  

Code of Federal Regulations, 2010 CFR

...2010-01-01 false Information open to public inspection. 2003...Trade Agreements OFFICE OF THE UNITED STATES TRADE REPRESENTATIVE REGULATIONS OF TRADE POLICY STAFF COMMITTEE § 2003.5 Information open to public inspection....

2010-01-01

407

15 CFR 2003.5 - Information open to public inspection.  

Code of Federal Regulations, 2010 CFR

...2009-01-01 false Information open to public inspection. 2003...Trade Agreements OFFICE OF THE UNITED STATES TRADE REPRESENTATIVE REGULATIONS OF TRADE POLICY STAFF COMMITTEE § 2003.5 Information open to public inspection....

2009-01-01

408

Naval Open Architecture Contract Guidebook for Program Managers.  

National Technical Information Service (NTIS)

Purpose: The Naval Open Architecture Contract Guidebook for Program Managers is to be used by Program Managers (PMs) who are incorporating Naval Open Architecture (NOA) principles (see NOA Requirements Letter, available on the NOA website at https://acc.d...

2010-01-01

409

15 CFR 2016.4 - Information open to public inspection.  

Code of Federal Regulations, 2010 CFR

... false Information open to public inspection. 2016.4 Section 2016.4 Commerce and Foreign Trade Regulations Relating...ANDEAN TRADE PREFERENCE ACT (ATPA), AS AMENDED § 2016.4 Information open to public inspection....

2010-01-01

410

15 CFR 2016.4 - Information open to public inspection.  

Code of Federal Regulations, 2010 CFR

... false Information open to public inspection. 2016.4 Section 2016.4 Commerce and Foreign Trade Regulations Relating...ANDEAN TRADE PREFERENCE ACT (ATPA), AS AMENDED § 2016.4 Information open to public inspection....

2009-01-01

411

Incorporating Modern OpenGL into Computer Graphics Education.  

PubMed

University of Stuttgart educators have updated three computer science courses to incorporate forward-compatible OpenGL. To help students, they developed an educational framework that abstracts some of modern OpenGL's difficult aspects. PMID:25051566

Reina, Guido; Muller, Thomas; Ertl, Thomas

2014-01-01

412

5. EXTERIOR VIEW OF ELECTROSTATIC PRECIPITATORS FOR OPEN HEARTH NO. ...  

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

5. EXTERIOR VIEW OF ELECTROSTATIC PRECIPITATORS FOR OPEN HEARTH NO. 5 (Martin Stupich) - U.S. Steel Homestead Works, Open Hearth Steelmaking Plant, Along Monongahela River, Homestead, Allegheny County, PA

413

4. EXTERIOR VIEW OF ELECTROSTATIC PRECIPITATORS FOR OPEN HEARTH NO. ...  

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

4. EXTERIOR VIEW OF ELECTROSTATIC PRECIPITATORS FOR OPEN HEARTH NO. 5 (Martin Stupich) - U.S. Steel Homestead Works, Open Hearth Steelmaking Plant, Along Monongahela River, Homestead, Allegheny County, PA

414

Northwest Open Automated Demand Response Technology Demonstration Project.  

National Technical Information Service (NTIS)

The Lawrence Berkeley National Laboratory (LBNL) Demand Response Research Center (DRRC) demonstrated and evaluated open automated demand response (OpenADR) communication infrastructure to reduce winter morning and summer afternoon peak electricity demand ...

J. Dudley M. A. Piette S. Kiliccote

2010-01-01

415

46 CFR 178.440 - Drainage of open boats.  

Code of Federal Regulations, 2013 CFR

...SECURITY (CONTINUED) SMALL PASSENGER VESSELS (UNDER 100 GROSS TONS) INTACT STABILITY AND SEAWORTHINESS Drainage of Weather Decks § 178.440 Drainage of open boats. The deck within the hull of an open boat must drain to the bilge....

2013-10-01

416

46 CFR 171.155 - Drainage of an open boat.  

Code of Federal Regulations, 2013 CFR

...HOMELAND SECURITY (CONTINUED) SUBDIVISION AND STABILITY SPECIAL RULES PERTAINING TO VESSELS CARRYING PASSENGERS Drainage of Weather Decks § 171.155 Drainage of an open boat. The deck within the hull of an open boat must drain to the bilge....

2013-10-01

417

Light-Activated Solid-State Opening Switch.  

National Technical Information Service (NTIS)

Light-activated solid-state opening switches are shown to be a viable approach for switching inductive circuits. Measured photoswitch performance indicates that light-activated opening switches have the power density ratings needed to develop compact indu...

G. I. Kachen J. P. Reilly M. W. Heyse R. A. Petr R. B. Schaefer

1993-01-01

418

48 CFR 814.402 - Opening of bids.  

Code of Federal Regulations, 2013 CFR

...opening officer, and must also designate a recorder. (b) If a bid bond is required, the bid opening officer must read aloud the form and amount of bid security and the name of the surety. The recorder must record this...

2013-10-01

419

12. CAPSTANS OF FRONT DECK. MIDDLE DOOR IS OPEN. ALL ...  

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

12. CAPSTANS OF FRONT DECK. MIDDLE DOOR IS OPEN. ALL DOORS COULD OPEN, TO GIVE OPERATOR AN UNIMPEDED VIEW. - Dredge CINCINNATI, Docked on Ohio River at foot of Lighthill Street, Pittsburgh, Allegheny County, PA

420

46 CFR 178.440 - Drainage of open boats.  

Code of Federal Regulations, 2010 CFR

...DEPARTMENT OF HOMELAND SECURITY (CONTINUED) SMALL PASSENGER VESSELS (UNDER 100 GROSS TONS) INTACT STABILITY AND SEAWORTHINESS Drainage of Weather Decks § 178.440 Drainage of open boats. The deck within the hull of an open boat must...

2010-10-01

421

Proceedings of the Open Source Software Development Workshop.  

National Technical Information Service (NTIS)

This is the second in a series of workshops to be supported by the Dependability Interdisciplinary Research Collaboration (DIRC). The focus of the Open Source Software Development workshop is on dependability and open source software development. Dependab...

C. Gacek B. Arief

2003-01-01

422

Looking southeast at bottom house with open hearth building attached ...  

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

Looking southeast at bottom house with open hearth building attached to the right. - U.S. Steel National Tube Works, Open Hearth Steelmaking Plant, Along Monongahela River, McKeesport, Allegheny County, PA

423

3. EXTERIOR VIEW INTO PART OF OPEN HEARTH NO. 5 ...  

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

3. EXTERIOR VIEW INTO PART OF OPEN HEARTH NO. 5 WITH RAILROAD TRESTLE IN FOREGROUND. (Jet Lowe) - U.S. Steel Homestead Works, Open Hearth Steelmaking Plant, Along Monongahela River, Homestead, Allegheny County, PA

424

75 FR 64719 - National Coal Council; Notice of Open Meeting  

Federal Register 2010, 2011, 2012, 2013

...DEPARTMENT OF ENERGY National Coal Council; Notice of Open...AGENCY: Department of Energy. ACTION: Notice of open...Steven Chu, Department of Energy. Presentation by Mr...Executive Director of the Coal Utilization Research...

2010-10-20

425

Openness: The Way to do Business. Press Conference Fact Sheets.  

National Technical Information Service (NTIS)

Three years after announcing the first Openness Initiative, the Department of Energy is announcing new measures to ensure that openness is the way to do business in the future. In addition, the Department is releasing today more newly declassified materia...

1997-01-01

426

Open Cell Isocyanurate Foams for Vacuum Insulation Panels  

Microsoft Academic Search

This paper describes the preparation, processing, properties and applications of open cell rigid isocyanurate foams. A mechanism for the formation of open cell rigid foams is discussed. The open cell foams were blown by using a blend of methylene chloride and n-pentane at specific ratios between 95\\/5 and 50\\/50 by weight. The resulting foams had open cell contents of about

Kaneyoshi Ashida; Josho Kashiwame

1995-01-01

427

OpenGL-assisted Visibility Queries of Large Polygonal Models  

Microsoft Academic Search

We present an OpenGL-assisted visibility culling algorithm to im- prove the rendering performance of large polygonal models. Us- ing a combination of OpenGL-assisted frustum culling, hierarchi- cal model-space partitioning, and OpenGL based occlusion culling, we achieve a significant better performance on general polygonal models than previous approaches. In contrast to these approaches, we only exploit common OpenGL features and therefore,

Tobias Huttner; Michael Meißner; Dirk Bartz

1998-01-01

428

Open Automated Demand Response Communications Specification (Version 1.0)  

Microsoft Academic Search

The development of the Open Automated Demand Response Communications Specification, also known as OpenADR or Open Auto-DR, began in 2002 following the California electricity crisis. The work has been carried out by the Demand Response Research Center (DRRC), which is managed by Lawrence Berkeley National Laboratory. This specification describes an open standards-based communications data model designed to facilitate sending and

Mary Ann Piette; Girish Ghatikar; Sila Kiliccote; Ed Koch; Dan Hennage; Peter Palensky; Charles McParland

2009-01-01

429

OpenRAVE: A Planning Architecture for Autonomous Robotics  

Microsoft Academic Search

Abstract One of the challenges in developing real-world autonomous,robots is the need for integrating and rigorously test- ing high-level scripting, motion planning, perception, and control algorithms. For this purpose, we introduce an open-source cross-platform software architecture called OpenRAVE, the Open Robotics and Animation Virtual Envi- ronment. OpenRAVE is targeted for real-world autonomous robot applications, and includes a seamless integration of

Rosen Diankov; James Kuffner

2008-01-01

430

A Performance Comparison of CUDA and OpenCL  

Microsoft Academic Search

CUDA and OpenCL offer two different interfaces for programming GPUs. OpenCL\\u000ais an open standard that can be used to program CPUs, GPUs, and other devices\\u000afrom different vendors, while CUDA is specific to NVIDIA GPUs. Although OpenCL\\u000apromises a portable language for GPU programming, its generality may entail a\\u000aperformance penalty. In this paper, we compare the performance of

Kamran Karimi; Neil G. Dickson; Firas Hamze

2010-01-01

431

Open end protection for solid oxide fuel cells  

DOEpatents

A solid oxide fuel cell (40) having a closed end (44) and an open end (42) operates in a fuel cell generator (10) where the fuel cell open end (42) of each fuel cell contains a sleeve (60, 64) fitted over the open end (42), where the sleeve (60, 64) extends beyond the open end (42) of the fuel cell (40) to prevent degradation of the interior air electrode of the fuel cell by fuel gas during operation of the generator (10).

Zafred, Paolo R. (Murrysville, PA); Dederer, Jeffrey T. (Valencia, PA); Tomlins, Gregory W. (Pittsburgh, PA); Toms, James M. (Irwin, PA); Folser, George R. (Lower Burrell, PA); Schmidt, Douglas S. (Pittsburgh, PA); Singh, Prabhakar (Export, PA); Hager, Charles A. (Zelienople, PA)

2001-01-01

432

Exploiting Open-source Projects to Study Software Design  

Microsoft Academic Search

This article presents an approach to using open-source tools and open-source projects to add realistic and practical examples to a course on software design in a professional master's pro- gram of software engineering. Students are encouraged to use object-oriented, open-source soft- ware projects available on the Internet, and to analyze their design attributes using open-source tools, to hopefully improve their

Christopher P. Fuhrman

2007-01-01

433

Open admissions, orality,aand literacy  

Microsoft Academic Search

Open admissions students tend to be highly oral. Their modes of thinking are different from the modes of thinking demanded in the highly literate (i.e., detached, objective, and scientific) world of college. They can learn the more literate modes of thinking, however, but this requires special awareness and effort on the part of their teachers. Some assumptions and instructional approaches

Thomas J. Farrell

1974-01-01

434

Open File: New Modalities for Educational Aid.  

ERIC Educational Resources Information Center

This journal focuses on comparative education and has four major sections. The "Viewpoint/Controversy" section contains one article: "Is the Globalization of the Economy Creating Values for a New Civilization?" (Koichiro Matsuura). The "Open File: Rethinking Educational Aid" section contains the following articles: "From Project to Programme to…

Buchert, Lene, Ed.; Epskamp, Kees, Ed.

2000-01-01

435

Open systems architecture for integrated RF electronics  

Microsoft Academic Search

The Integrated Sensor System (ISS) program is defining an Open System Architecture (OSA) for Radio Frequency (RF) electronics, which represent the largest portion of an advanced aircraft's avionics flyaway cost. An integrated architecture is used to reduce costs in a number of ways, including time-sharing, centralization of resources, and reduction of the number of unique module types. The OSA approach

D. C. Hooks; B. A. Rich

1999-01-01

436

Open systems architecture for integrated RF electronics  

Microsoft Academic Search

The Integrated Sensor System (ISS) program is defining an Open System Architecture (OSA) for Radio Frequency (RF) electronics, which represent the largest portion of an advanced aircraft's avionics fly away cost. An integrated architecture is used to reduce costs in a number of ways, including time-sharing, centralization of resources, and reduction of the number of unique module types. The OSA

D. C. Hooks; B. A. Rich

1997-01-01

437

Open high speed bus for microcomputer system  

US Patent & Trademark Office Database

An open high-speed local system bus for a microcomputer system which is decoupled from I/O and provides a consistent interface to the CPU subsystem, memory subsystem, graphics subsystem and peripheral subsystem. The local system bus supports discrete and burst transactions, pipelining in both the transactions, multiple microprocessor and distributed interrupts.

1996-05-14

438

DBMS Architecture - Still an Open Problem  

Microsoft Academic Search

More than two decades ago, DB researchers faced up to the question of how to design a data-independent database management system (DBMS), that is, a DBMS which offers an appropriate application programming interface (API) to the user and whose architecture is open for permanent evolution. For this purpose, an ar- chitectural model based on successive data abstraction steps of record-oriented

Theo Härder

2005-01-01

439

Open systems benefit energy control center  

Microsoft Academic Search

The ability to migrate applications among computers of different vendors and different sizes (from PCs to supercomputers), as operating needs change and grow, is described. Utility users want a basis for defining a strategy to update their energy management system (EMS) to be open and for continuous migration of their EMS to meet changing and expanding system operational needs. The

T. A. Green; A. Bose

1992-01-01

440

Plastic debris in the open ocean.  

PubMed

There is a rising concern regarding the accumulation of floating plastic debris in the open ocean. However, the magnitude and the fate of this pollution are still open questions. Using data from the Malaspina 2010 circumnavigation, regional surveys, and previously published reports, we show a worldwide distribution of plastic on the surface of the open ocean, mostly accumulating in the convergence zones of each of the five subtropical gyres with comparable density. However, the global load of plastic on the open ocean surface was estimated to be on the order of tens of thousands of tons, far less than expected. Our observations of the size distribution of floating plastic debris point at important size-selective sinks removing millimeter-sized fragments of floating plastic on a large scale. This sink may involve a combination of fast nano-fragmentation of the microplastic into particles of microns or smaller, their transference to the ocean interior by food webs and ballasting processes, and processes yet to be discovered. Resolving the fate of the missing plastic debris is of fundamental importance to determine the nature and significance of the impacts of plastic pollution in the ocean. PMID:24982135

Cózar, Andrés; Echevarría, Fidel; González-Gordillo, J Ignacio; Irigoien, Xabier; Ubeda, Bárbara; Hernández-León, Santiago; Palma, Alvaro T; Navarro, Sandra; García-de-Lomas, Juan; Ruiz, Andrea; Fernández-de-Puelles, María L; Duarte, Carlos M

2014-07-15

441

Microsystems testing: an approach and open problems  

Microsoft Academic Search

In this work a Computer-Aided Testing (CAT) tool is proposed that brings a systematic way of dealing with testing problems in emerging microsystems. Experiments with case-studies illustrate the techniques and tools embedded in the CAT environment. Some of the many open problems that shall be addressed in the near future as an extension to this work are also discussed.

Marcelo Lubaszewski; E. F. Cota; Bernard Courtois

1998-01-01

442

Citation Advantage of Open Access Articles  

Microsoft Academic Search

Open access (OA) to the research literature has the potential to accelerate recognition and dissemination of research findings, but its actual effects are controversial. This was a longitudinal bibliometric analysis of a cohort of OA and non-OA articles published between June 8, 2004, and December 20, 2004, in the same journal (PNAS: Proceedings of the National Academy of Sciences). Article

Gunther Eysenbach

2006-01-01

443

Open-Ended Test Items Pose Challenges  

ERIC Educational Resources Information Center

Most experts in the testing community have presumed that the $350 million promised by the U.S. Department of Education to support common assessments would promote those that made greater use of open-ended items capable of measuring higher-order critical-thinking skills. But as measurement experts consider the multitude of possibilities for an…

Sawchuk, Stephen

2010-01-01

444

Open Educational Resources in India's National Development  

ERIC Educational Resources Information Center

As India marches rapidly towards an ambitious agenda of economic and social advancement, one of the greatest challenges it faces is to provide extensive access to quality higher education opportunities. An evident and expanding Open Education Resources movement offers great promise for meeting this challenge through initiatives that make quality…

Kumar, M. S. Vijay

2009-01-01

445

Implementing Rakim: Open Source Chat Reference Software  

ERIC Educational Resources Information Center

This article describes the conception, implementation, and current status of Rakim open source software at Midlands Technical college in Columbia, SC. Midlands Technical College (MTC) is a 2-year school in Columbia, S.C. It has two large campuses and three smaller campuses. Although the library functions as a single unit, there are separate…

Caraway, Shawn; Payne, Susan

2005-01-01

446

Private Yet Abuse Resistant Open Publishing  

Microsoft Academic Search

We present the problem of abusive, o-topic or repetitive postings on open publishing websites, and the diculties associated with ltering them out. We propose a scheme that extracts enough information to allow for ltering, based on users being embedded in a social network. Our system maintains the privacy of the poster, and does not require full identication to work well.

Ben Laurie

2006-01-01

447

Opening Minds: Using Language to Change Lives  

ERIC Educational Resources Information Center

Sometimes a single word changes everything. In his groundbreaking book "Choice Words", Peter Johnston demonstrated how the things teachers say (and don't say) have surprising consequences for the literate lives of students. Now, in "Opening Minds: Using Language to Change Lives", Peter shows how the words teachers choose affect the worlds students…

Johnston, Peter H.

2012-01-01

448

The new open economy macroeconomics: a survey  

Microsoft Academic Search

Since the 1995 publication of Obsteld and Rogoff’s Redux model, there has been an outpouring of research on open-economy dynamic general equilibrium models that incorporate imperfect competition and nominal rigidities. This paper offers an interim survey of this recent literature.

2001-01-01

449

The New Open Economy Macroeconomics: a Survey  

Microsoft Academic Search

Since the 1995 publication of Obsteld and Rogoff's Redux model, there has been an outpouring of research on open-economy dynamic general equilibrium models that incorporate imperfect competition and nominal rigidities. This paper offers an interim survey of this recent literature.

1999-01-01

450

An Open Learner Model for Trainee Pilots  

ERIC Educational Resources Information Center

This paper investigates the potential for simple open learner models for highly motivated, independent learners, using the example of trainee pilots. In particular we consider whether such users access their learner model to help them identify their current knowledge level, areas of difficulty and specific misconceptions, to help them plan their…

Gakhal, Inderdip; Bull, Susan

2008-01-01

451

Teaching Software Evolution in Open Source  

Microsoft Academic Search

Most software engineering courses require students to develop small programs from scratch, but professional engineers typically work on the evolution of large software systems. Using open source software and a software change process model can narrow this gap without imposing excessive demands on students or instructors.

Maksym Petrenko; Denys Poshyvanyk; Václav Rajlich; Joseph Buchta

2007-01-01

452

Gauge invariance and constraints. Open gauge algebras.  

National Technical Information Service (NTIS)

For a wide class of gauge invariant systems with open gauge algebras the Hamiltonian description is constructed and the Poisson brackets of the constraints are calculated. It is shown that in the case under consideration there arise only first class const...

K. Nirov P. N. Pyatov A. V. Razumov

1991-01-01

453

Earnings management around UK open offers  

Microsoft Academic Search

We examine the long run operating and stock price performance of UK open offer firms in the context of the earnings management hypothesis. We find that in the pre-offer period offer firms report significant improvements in their operating performance unrelated to cash flow performance. Results on return performance show that offer firms outperform various benchmarks in the pre-offer year but

Abdullah Iqbal; Susanne Espenlaub; Norman Strong

2009-01-01

454

Advanced digital forensics with Open Source tools  

Microsoft Academic Search

Often advanced topics require high cost tools which may put them out of reach for many programs but several advanced topics in digital forensics may be presented using readily available Open Source tools. This exposes students to developing areas in digital forensics and may also suggest fruitful areas for their own research. This tutorial will present live memory collection and

Richard Austin

2011-01-01

455

Astrophysical parameters of Galactic open clusters  

Microsoft Academic Search

We present a catalogue of astrophysical data for 520 Galactic open clusters. These are the clusters for which at least three most probable members (18 on average) could be identified in the ASCC-2.5, a catalogue of stars based on the Tycho-2 observations from the Hipparcos mission. We applied homogeneous methods and algorithms to determine angular sizes of cluster cores and

N. V. Kharchenko; A. E. Piskunov; S. Röser; E. Schilbach; R.-D. Scholz

2005-01-01

456

Class Overbored: Abandoning "The Open Boat."  

ERIC Educational Resources Information Center

Discusses possible reasons why Stephen Crane's short story "The Open Boat" does not go over well with students or the author's colleagues: (1) students cannot identify with the scenario of the story; (2) the story is a "guy" thing; (3) the teacher's enthusiasm kills the story; and (4) the story is intrinsically unteachable and dull. (RS)

Reinsmith, William A.

2000-01-01

457

Effect of Capacity in Open Pit Optimization.  

National Technical Information Service (NTIS)

Capacity affects the economy of a mine. The effect on the life time of the mine is evident, but capacity also influences ore reserves, costs, equipment and mining schedule. The effect of capacity on the total value (NPV) and size of an open pit mine has b...

P. Pitkaenen

2000-01-01

458

The Namuru Open GNSS Research Receiver  

Microsoft Academic Search

Namuru is the name given to the open GNSS receiver research platform developed at the University of New South Wales, Australia. This paper presents the latest design details, results and achievements from the Namuru project team. The platform includes three aspects; 1) a custom circuit board, 2) baseband processor (correlator block) logic design and 3) application firmware. Both the circuit

Peter J Mumford; Kevin Parkinson; Andrew G Dempster

459

Mathematics Instruction through the Open University.  

ERIC Educational Resources Information Center

After a brief review of the literature and definition of educational technology, this paper describes the process of mathematics instruction at the Open University of Sri Lanka (OUSL). It is noted that the unique situation at OUSL and the abstract nature of mathematics make it necessary to modify the system of distance education because it is…

Somadasa, H.

460

Social Networking: A Collaborative Open Educational Resource  

ERIC Educational Resources Information Center

Studies undertaken since the introduction of Web 2.0 have focussed mainly on open educational resources (OERs) such as email, blogging and virtual learning environments. No consistent efforts have been undertaken to study the use of social networking sites as a tool for learning in the second language classroom. This study examined the use of…

Toetenel, Lisette

2014-01-01

461

Emerging Open Online Distance Education Environment  

ERIC Educational Resources Information Center

A revolution of sorts is underway in providing open access to rich resources, actual courses, and even entire degrees online. This revolution is fueled by the combination of a bubble in tuition rates, lingering effects of the recession, monumental student debt exceeding one trillion dollars in the United States, development of increasingly…

Schroeder, Raymond

2012-01-01

462

Energy Requirements for Opening the Solar Corona  

Microsoft Academic Search

Eruptive solar events like flares and coronal mass ejections are thought to involve the release of energy stored in nonpotential magnetic fields. If this is the case, then the magnetic field configuration must change as the eruptive event occurs. One possible change is the opening of field lines that were originally closed a change that is observed in many coronagraph

Richard Wolfson

1993-01-01

463

Epoxy Modified Open-graded Porous Asphalt  

Microsoft Academic Search

Investigations into the cohesive properties and oxidation resistance of an acid cured, epoxy modified, Open-Graded Porous Asphalt (epoxy OGPA) were undertaken together with a limited accelerated loading test carried out at Transit New Zealand's CAPTIF facility. Results indicated that the early life cohesive properties of cured epoxy OGPA should be comparable to that of standard OGPA at 25 °C and

Philip Herrington; David Alabaster

2008-01-01

464

Open Source, Meet "User-Generated Science"  

ERIC Educational Resources Information Center

This article discusses Research Blogging, a community-run nonprofit organization that is promoting a suite of blogging software to scholars. Research Blogging itself does two things. First, it extends an invitation to a community, and it is open to anyone. Second, it requires its users to follow guidelines. The combination of rigorous guidelines…

Huwe, Terence K.

2009-01-01

465

Open Shelf-Life Dating of Food.  

National Technical Information Service (NTIS)

In their concern over the freshness of food, consumers have increasingly advocated open shelf-life dating--the use of dates on a can or package of food that gives the consumer some idea of when a product was packed or should be sold or used. Although such...

1979-01-01

466

The OpenGL Shading Language  

Microsoft Academic Search

The introduction of programmable graphics hardware opened a door to a new era of real-time rendering. The manifold uses of vertex an d fragment shaders enable developers and art- ists to achieve many visuals effects at high frame rates on consumer level hardware, which has been formerly rendered offline. The increasing effo rt of writing efficient and effective shaders leads

Stephan Brumme

467

Oil boom for open sea skimmer barge  

SciTech Connect

Oil boom for an open sea skimmer barge comprising a hull having a bow, bottom, side walls, stern having a substantially elongate slot extending across a portion thereof and a deck, a spill suction tunnel, a collection tank, secondary oil separation means and tertiary oil separation means.

Ayers, W.M.; Maheshwary, A.K.

1982-07-20

468

Plasma opening switch research for DECADE  

Microsoft Academic Search

Plasma opening switch (POS) research for the DECADE radiation effects test facility is reviewed. This research was first performed on a half-scale generator, DECADE Prototype Module 1, and indicated the importance of the POS electrode geometry to obtain the required impedance at appropriate conduction times. It also was demonstrated that the conduction time jitter was suitable for a multimodule system.

John R. Goyer; David Kortbawi; F. K. Childers; Peter S. Sincerny; Bruce V. Weber; P. F. Ottinger; Robert J. Commisso; John R. Thompson; M. A. Babineau

1997-01-01

469

Who Succeeds in an Independent, Open Laboratory?  

ERIC Educational Resources Information Center

This paper reports a study which investigated student characteristics for predicting success in an independent, open laboratory. Data were gathered from introductory biology students (N=98) enrolled in a public, two-year college near Atlanta, Georgia. Stepwise multiple regression analysis was used to determine the effects of age, sex, laboratory…

Halyard, Rebecca A.; And Others

470

The Bangladesh Open University: Mission and Promise.  

ERIC Educational Resources Information Center

Describes the establishment of the Bangladesh Open University (BOU), a university offering tertiary level qualifications and non-formal and secondary-school equivalency programs. Examines academic programs, program development, target population, delivery media (print, radio, audio, human contact), credibility, and sustainability. Argues that BOU…

Ali, M. Shamsher; And Others

1997-01-01

471

Scientific Utopia: I. Opening Scientific Communication  

Microsoft Academic Search

Existing norms for scientific communication are rooted in anachronistic practices of bygone eras making them needlessly inefficient. We outline a path that moves away from the existing model of scientific communication to improve the efficiency in meeting the purpose of public science—knowledge accumulation. We call for six changes: (a) full embrace of digital communication; (b) open access to all published

Brian A. Nosek; Yoav Bar-Anan

2012-01-01

472

OPEN PROBLEM: KAM tori: persistence and smoothness  

NASA Astrophysics Data System (ADS)

Ten open problems in Kolmogorov-Arnold-Moser theory for finite-dimensional dynamical systems are presented and discussed. These problems concern the preservation of frequencies and Floquet exponents of invariant tori of partially integrable systems under small perturbations in the presence of external parameters.

Sevryuk, Mikhail B.

2008-10-01

473

OPEN SERVICE RESIDENTIAL GATEWAY FOR SMART HOMES  

Microsoft Academic Search

This paper presents a resident ial gateway (RG) based, service-oriented system infrastructure for smart homes. The RG is designed to enable the interconnection of various home networks and appliances to Internet, and at the same time serves as a service execution platform. The Open Service Gateway Initiative (OSGi) and device access protocols such as UPnP have been incorporated in the

D. Zhang; H. Lee; X. Ni; S. Zheng

2003-01-01

474

Open access to the scientific journal literature  

Microsoft Academic Search

ABSTRACT: None of the advantages of traditional scientific journals need be sacrificed in order to provide free online access to scientific journal articles. Objections that open access to scientific journal literature requires the sacrifice of peer-review, revenue, copyright protection, or other strengths of traditional journals, are based on misunderstandings.

Peter Suber

2002-01-01

475

Of Birkenstocks and Wingtips: Open Source Licenses  

ERIC Educational Resources Information Center

The notion of collaborating to create open source applications for higher education is rapidly gaining momentum. From course management systems to ERP financial systems, higher education institutions are working together to explore whether they can in fact build a better mousetrap. As Lois Brooks, of Stanford University, recently observed, the…

Gandel, Paul B.; Wheeler, Brad

2005-01-01

476

A Turf War over Open Meetings.  

ERIC Educational Resources Information Center

In "Wood," a dismissed employee sued the school district, the board, and three board members for violating Washington's Open Public Meetings Act (OPMA). The Court of Appeals ruled that e-mail exchanges between board members discussing board business are "meetings" governed by OPMA. Board members should review state law with their board attorney…

Dowling-Sendor, Benjamin

2002-01-01

477

Open source OCR framework using mobile devices  

NASA Astrophysics Data System (ADS)

Mobile phones have evolved from passive one-to-one communication device to powerful handheld computing device. Today most new mobile phones are capable of capturing images, recording video, and browsing internet and do much more. Exciting new social applications are emerging on mobile landscape, like, business card readers, sing detectors and translators. These applications help people quickly gather the information in digital format and interpret them without the need of carrying laptops or tablet PCs. However with all these advancements we find very few open source software available for mobile phones. For instance currently there are many open source OCR engines for desktop platform but, to our knowledge, none are available on mobile platform. Keeping this in perspective we propose a complete text detection and recognition system with speech synthesis ability, using existing desktop technology. In this work we developed a complete OCR framework with subsystems from open source desktop community. This includes a popular open source OCR engine named Tesseract for text detection & recognition and Flite speech synthesis module, for adding text-to-speech ability.

Zhou, Steven Zhiying; Gilani, Syed Omer; Winkler, Stefan

2008-03-01

478

Primary open-angle glaucoma genes  

Microsoft Academic Search

A substantial fraction of glaucoma has a genetic basis. About 5% of primary open angle glaucoma (POAG) is currently attributed to single-gene or Mendelian forms of glaucoma (ie glaucoma caused by mutations in myocilinor optineurin). Mutations in these genes have a high likelihood of leading to glaucoma and are rarely seen in normal subjects. Other cases of POAG have a

J H Fingert

2011-01-01

479

ROLF--An Open Learning Delivery System.  

ERIC Educational Resources Information Center

Discusses the Resourced Open Learning Facility (ROLF), which was developed by the U.K. Skills Training Agency (STA) as a means of delivering off-the-job skill training for the unemployed. Employment training is discussed and an evaluation of ROLF is described, including management issues and types of trainees. (Author/LRW)

Twining, John; And Others

1989-01-01

480

Economic openness and rural communities in Guatemala  

Microsoft Academic Search

Purpose – The purpose of this paper is to describe some effects of the economic policies implemented by the Guatemalan government on rural communities. Design\\/methodology\\/approach – A comparison of the trends in corn prices over time between Guatemala and the USA was used to determine which year the impact of economic openness policies began. Then, changes in the area harvested

José Nicolás Cabrera-Schneider

2009-01-01

481

Open-Loop Analysis of Cascode Compensation  

Microsoft Academic Search

This paper presents a new open-loop analysis for cascode compensation scheme which is often used in high speed two-stage CMOS operational amplifiers (opamps). In the proposed analysis, the effect of zeros in the transfer function is also considered. Analytical approaches in this paper show that cascode compensation is more power efficient than conventional Miller compensation especially for large capacitive loads.

Hamed Aminzadeh; Reza Lotfi

2006-01-01

482

Vacuum interrupters and thyratrons as opening switches  

SciTech Connect

The clear advantages of inductive storage for large scale energy storage applications are creating an increasing interest in the research and development of the opening switches required. Opening switches for single-shot inductive transfers have received considerable attention and are fairly well advanced. The problem addressed by this workshop of high power opening switches for high repetition rate applications is much more severe, however, and may well require a major research and development effort. Two candidates for such an opening switch, the triggered vacuum interrupter and the magnetically quenched thyratron, are discussed. By electrically retriggering the discharge in the vacuum interrupter between pulses, the dependence on mechanical motion is eliminated. This should enable repetition rate operation at 10 to 15 kHz while still maintaining the vacuum interrupter's proven interrupting performance of tens of kiloamps at tens of kilovolts. The magnetically quenched thyratron, on the other hand, uses a cross magnetic field to raise the switch impedance by decreasing the electron mobility and driving the discharge into an arc chute wall where it is quenched. Successful interruptions of 1 kA at 15 kV and 100 A at 50 kV after conduction for 10 ..mu..s have been demonstrated by previous researchers. Work at Los Alamos is directed toward understanding the basic mechanisms involved and increasing the switch ratings, particularly the conduction time.

Honig, E.M.

1981-01-01

483

Plastic debris in the open ocean  

PubMed Central

There is a rising concern regarding the accumulation of floating plastic debris in the open ocean. However, the magnitude and the fate of this pollution are still open questions. Using data from the Malaspina 2010 circumnavigation, regional surveys, and previously published reports, we show a worldwide distribution of plastic on the surface of the open ocean, mostly accumulating in the convergence zones of each of the five subtropical gyres with comparable density. However, the global load of plastic on the open ocean surface was estimated to be on the order of tens of thousands of tons, far less than expected. Our observations of the size distribution of floating plastic debris point at important size-selective sinks removing millimeter-sized fragments of floating plastic on a large scale. This sink may involve a combination of fast nano-fragmentation of the microplastic into particles of microns or smaller, their transference to the ocean interior by food webs and ballasting processes, and processes yet to be discovered. Resolving the fate of the missing plastic debris is of fundamental importance to determine the nature and significance of the impacts of plastic pollution in the ocean.

Cozar, Andres; Echevarria, Fidel; Gonzalez-Gordillo, J. Ignacio; Irigoien, Xabier; Ubeda, Barbara; Hernandez-Leon, Santiago; Palma, Alvaro T.; Navarro, Sandra; Garcia-de-Lomas, Juan; Ruiz, Andrea; Fernandez-de-Puelles, Maria L.; Duarte, Carlos M.

2014-01-01

484

Open boundary conditions for dissipative MHD  

NASA Astrophysics Data System (ADS)

In modeling magnetic confinement, astrophysics, and plasma propulsion, representing the entire physical domain is often difficult or impossible, and artificial, or ``open'' boundaries are appropriate. A novel open boundary condition (BC) for dissipative MHD, called Lacuna-based open BC (LOBC), is presented. LOBC, based on the idea of lacuna-based truncation originally presented by V.S. Ryaben'kii and S.V. Tsynkov [1], provide truncation with low numerical noise and minimal reflections. For hyperbolic systems, characteristic-based BC (CBC) exist for separating the solution into outgoing and incoming parts. In the hyperbolic-parabolic dissipative MHD system, such separation is not possible, and CBC are numerically unstable. LOBC are applied in dissipative MHD test problems including a translating FRC, and coaxial-electrode plasma acceleration. Solution quality is compared to solutions using CBC and zero-normal derivative BC. LOBC are a promising new open BC option for dissipative MHD. [4pt] [1] V.S. Ryabenkii et al., J. Comput. Phys., 174 (2001) 712

Meier, Eric; Glasser, Alan; Lukin, Vyacheslav; Shumlak, Uri

2011-11-01

485

Web Mining for Open Source Intelligence  

Microsoft Academic Search

Web mining for open source intelligence is the retrieval, extraction and analysis of information from on-line Internet sites. There are two separate applications areas this paper will review, namely live news-monitoring and targeted topic based data mining. Most newspapers and news agencies have Web sites with live updates on unfolding events, opinions and perspectives on world events. Most governments monitor

Clive Best

2008-01-01

486

Open-Ended Laboratory Investigations with Drosophila.  

ERIC Educational Resources Information Center

Background information, laboratory procedures (including matings performed), and results are presented for an open-ended investigation using the fruitfly Drosophila melanogaster. Once data are collected, students develop hypotheses to explain results as well as devise additional experiments to test their hypotheses. Calculation of chi-square for…

Mertens, Thomas R.

1983-01-01

487

Open Systems Ada Technology (OSAT) Program.  

National Technical Information Service (NTIS)

Project objectives were to: convert the mission computer of an AV-8B to a COTS, open standards-based platform, develop/demonstrate an HOL OFP, compare the observed CEP from this demonstration with the AV-8B Fleet OFP CEP , integrate the data fusion integr...

D. Winter

2002-01-01

488

Openness, Intelligence, and Self-Report Intelligence  

ERIC Educational Resources Information Center

Past studies that have examined the relationship between Openness and crystallized ability have failed to account statistically for the fact that subtests commonly regarded as measures of crystallized intelligence (e.g., Vocabulary) are contaminated substantially by general intelligence. A method using residuals derived from a regression is…

Gignac, Gilles E.; Stough, Con; Loukomitis, Sue

2004-01-01

489

Gene mapping for primary open angle glaucoma  

Microsoft Academic Search

Primary open angle glaucoma (POAG) is a leading cause of visual impairment and blindness worldwide. To date, at least 20 genetic loci for POAG have been reported. Only 3 causative genes are identified from these loci: myocilin (MYOC), optineurin (OPTN) and WD repeat domain 36 (WDR36), which together account for less than 10% of POAG. Only a portion of POAG

Bao Jian Fan; Dan Yi Wang; Dennis Shun Chiu Lam; Chi Pui Pang

2006-01-01

490

Abdominal Compartment Syndrome in the Open Abdomen  

Microsoft Academic Search

Background: Multiple methods exist to manage in the intensive care unit the patient with an open abdomen. An increasingly common method is the vacuum packed technique. This method accommodates considerable ex- pansion of intra-abdominal contents and should obvi- ate the potential development of the abdominal com- partment syndrome (ACS). Despite this, some patients with these temporary abdominal dressings will go

Vicente H. Gracias; Benjamin Braslow; Jon Johnson; John Pryor; Rajan Gupta; Patrick Reilly; C. William Schwab

2002-01-01

491

The SAMI2 Open Source Project  

NASA Astrophysics Data System (ADS)

In the past decade, the Open Source Model for software development has gained popularity and has had numerous major achievements: emacs, Linux, the Gimp, and Python, to name a few. The basic idea is to provide the source code of the model or application, a tutorial on its use, and a feedback mechanism with the community so that the model can be tested, improved, and archived. Given the success of the Open Source Model, we believe it may prove valuable in the development of scientific research codes. With this in mind, we are `Open Sourcing' the low to mid-latitude ionospheric model that has recently been developed at the Naval Research Laboratory: SAMI2 (Sami2 is Another Model of the Ionosphere). The model is comprehensive and uses modern numerical techniques. The structure and design of SAMI2 make it relatively easy to understand and modify: the numerical algorithms are simple and direct, and the code is reasonably well-written. Furthermore, SAMI2 is designed to run on personal computers; prohibitive computational resources are not necessary, thereby making the model accessible and usable by virtually all researchers. For these reasons, SAMI2 is an excellent candidate to explore and test the open source modeling paradigm in space physics research. We will discuss various topics associated with this project. Research supported by the Office of Naval Research.

Huba, J. D.; Joyce, G.

2001-05-01

492

Surgical navigation in the open MRI.  

PubMed

The introduction of MRI into neurosurgery has opened multiple avenues, but also introduced new challenges. The open-configuration intraoperative MRI installed at the Brigham and Women's Hospital in 1996 has been used for more than 500 open craniotomies and beyond 100 biopsies. Furthermore the versatile applicability, employing the same principles, is evident by its frequent use in other areas of the body. However, while intraoperative scanning in the SignaSP yielded unprecedented imaging during neurosurgical procedures their usage for navigation proved bulky and unhandy. To be fully integrated into the procedure, acquisition and display of intraoperative data have to be dynamic and primarily driven by the surgeon performing the procedure. To use the benefits of computer-assisted navigation systems together with immediate availability of intraoperative imaging we developed a software package. This "3D Slicer" has been used routinely for biopsies and open craniotomies. The system is stable and reliable. Pre- and intraoperative data can be visualized to plan and perform surgery, as well as to accommodate for intraoperative deformations, "brain shift", by providing online data acquisition. PMID:12570147

Nabavi, A; Gering, D T; Kacher, D F; Talos, I F; Wells, W M; Kikinis, R; Black, P McL; Jolesz, F A

2003-01-01

493

Open source communities: an integrally informed approach  

Microsoft Academic Search

Purpose – To reframe analysis of the open source software (OSS) phenomenon from an AQAL perspective Design\\/methodology\\/approach – The approach is a review of current research thinking and application of the AQAL framework to suggest resolution of polarizations. Findings – The authors find that AQAL is valuable as an integrating framework allowing a more holistic understanding of the complex economic,

Carla C. J. M. Millar; Chong Ju Choi; Edward T. Russell; Jai-Boem Kim

2005-01-01

494

Linguistic Recycling and the Open Community.  

ERIC Educational Resources Information Center

Examines linguistic recycling in the context of domestic Esperanto use. Argues that word-meaning recycling reflects the same fundamental principles as sentential recursion, and that a linguistics theoretically sensitive to these principles strengthens practical efforts towards the social goal of an open speech community. (Author/VWL)

Dasgupta, Probal

2001-01-01

495

SS Lac in Open Cluster NGC 7209  

Microsoft Academic Search

We present IUE observations in far ultraviolet region for SS Lac in open cluster NGC 7209. The IUE short wavelength spectrum and long wavelength spectrum were merged to produce an energy distribution curve between 1200A and 3200A. The curve has been unreddened to take out reddening effect. Then the surface temperature, gravity and abundance of SS Lac were determined based

Young Woon Kang

1997-01-01

496

Marcy Open School Community Day Program Report.  

ERIC Educational Resources Information Center

The Community Day Program was adopted at Marcy Open School after strong parental support was demonstrated. A central focus of the program was to integrate community experience into the school curriculum and a large staff of volunteers was considered necessary for this task. Specific goals of the community plan were to provide activities,…

Hoppe, Sydney A.

497

A Brief Overview of Open Classroom Education.  

ERIC Educational Resources Information Center

This brief overview is intended for educators concerned with the realities of implementation and techniques for operational success in open classroom education. Presented are enumerations of statements on 1) essential environmental components that exist in a successful classroom in which the childs' needs, intellectual, and social abilities are…

Newman, Sally

498

Plasma Erosion Opening Switch Research at NRL  

Microsoft Academic Search

This paper is a review of plasma erosion opening switch (PEOS) research performed at the Naval Research Laboratory (NRL). Several experimental and theoretical results are described to illustrate the present level of understanding and the best switching results obtained to date. Significant power multiplication has been achieved on the Gamble II generator, producing 3.5 TW with less than 10-ns rise

B. V. Weber; R. J. Commisso; G. Cooperstein; J. M. Grossmann; D. D. Hinshelwood; D. Mosher; J. M. Neri; P. F. Ottinger; S. J. Stephanakis

1987-01-01

499

Wide Open Spaces: Wikis Ready or Not  

ERIC Educational Resources Information Center

Remember when the Internet was about opening up access to information and breaking down the barriers between content creators and content consumers? Think back to when spam was just a meatlike substance. To those heady days when Timothy Leary was predicting that the PC would be the LSD of the nineties. Before the DMCA. Before eBay. Back when the…

Lamb, Brian

2004-01-01

500

Evaluating open-source cloud computing solutions  

Microsoft Academic Search

Cloud computing is becoming a mainstream technology in enterprise environment, promising more efficient use of hardware resources through virtualization, elastic computing facilities and secure management of user applications. Various cloud computing architectures are emerging and several commercial and open source products on the market advertise a rich feature-set. While commercial vendors try to give potential users the (not necessarily unbiased)

I. Voras; B. Mihaljevic; M. Orlic; M. Pletikosa; M. Zagar; T. Pavic; K. Zimmer; I. Cavrak; V. Paunovic; I. Bosnic; S. Tomic

2011-01-01