31 CFR 542.206 - Exempt transactions.

Code of Federal Regulations, 2013 CFR

2013-07-01

... country and the exportation to any country of information or informational materials, as defined in § 542... regulation or authorize transactions incident to the exportation of software subject to the Export Administration Regulations, 15 CFR parts 730 through 799, or to the exportation of goods, technology or software...

31 CFR 541.206 - Exempt transactions.

Code of Federal Regulations, 2013 CFR

2013-07-01

... country and the exportation to any country of information or informational materials, as defined in § 541... regulation or authorize transactions incident to the exportation of software subject to the Export Administration Regulations, 15 CFR parts 730-774, or to the exportation of goods, technology or software, or to...

31 CFR 548.206 - Exempt transactions.

Code of Federal Regulations, 2010 CFR

2010-07-01

... country and the exportation to any country of any information or informational materials, as defined in... authorize transactions incident to the exportation of software subject to the Export Administration Regulations, 15 CFR parts 730-774, or to the exportation of goods, technology, or software for use in the...

31 CFR 549.206 - Exempt transactions.

Code of Federal Regulations, 2014 CFR

2014-07-01

... country and the exportation to any country of any information or informational materials, as defined in... authorize transactions incident to the exportation of software subject to the Export Administration Regulations, 15 CFR parts 730 through 774, or to the exportation of goods, technology, or software for use in...

31 CFR 549.206 - Exempt transactions.

Code of Federal Regulations, 2011 CFR

2011-07-01

... country and the exportation to any country of any information or informational materials, as defined in... authorize transactions incident to the exportation of software subject to the Export Administration Regulations, 15 CFR parts 730 through 774, or to the exportation of goods, technology, or software for use in...

31 CFR 548.206 - Exempt transactions.

Code of Federal Regulations, 2012 CFR

2012-07-01

... country and the exportation to any country of any information or informational materials, as defined in... authorize transactions incident to the exportation of software subject to the Export Administration Regulations, 15 CFR parts 730-774, or to the exportation of goods, technology, or software for use in the...

31 CFR 548.206 - Exempt transactions.

Code of Federal Regulations, 2013 CFR

2013-07-01

... country and the exportation to any country of any information or informational materials, as defined in... authorize transactions incident to the exportation of software subject to the Export Administration Regulations, 15 CFR parts 730-774, or to the exportation of goods, technology, or software for use in the...

31 CFR 542.206 - Exempt transactions.

Code of Federal Regulations, 2010 CFR

2010-07-01

... country and the exportation to any country of information or informational materials, as defined in § 542... regulation or authorize transactions incident to the exportation of software subject to the Export Administration Regulations, 15 CFR parts 730 through 799, or to the exportation of goods, technology or software...

Electronic Business Transaction Infrastructure Analysis Using Petri Nets and Simulation

ERIC Educational Resources Information Center

Feller, Andrew Lee

2010-01-01

Rapid growth in eBusiness has made industry and commerce increasingly dependent on the hardware and software infrastructure that enables high-volume transaction processing across the Internet. Large transaction volumes at major industrial-firm data centers rely on robust transaction protocols and adequately provisioned hardware capacity to ensure…

31 CFR 576.209 - Exempt transactions.

Code of Federal Regulations, 2012 CFR

2012-07-01

..., as defined in § 576.306, whether commercial or otherwise, regardless of format or medium of... does not exempt or authorize transactions incident to the exportation of software subject to the Export Administration Regulations, 15 CFR parts 730-774, or to the exportation of goods, technology, or software for use...

31 CFR 576.209 - Exempt transactions.

Code of Federal Regulations, 2011 CFR

2011-07-01

..., as defined in § 576.306, whether commercial or otherwise, regardless of format or medium of... does not exempt or authorize transactions incident to the exportation of software subject to the Export Administration Regulations, 15 CFR parts 730-774, or to the exportation of goods, technology, or software for use...

31 CFR 576.209 - Exempt transactions.

Code of Federal Regulations, 2013 CFR

2013-07-01

..., as defined in § 576.306, whether commercial or otherwise, regardless of format or medium of... does not exempt or authorize transactions incident to the exportation of software subject to the Export Administration Regulations, 15 CFR parts 730-774, or to the exportation of goods, technology, or software for use...

High-throughput state-machine replication using software transactional memory.

PubMed

Zhao, Wenbing; Yang, William; Zhang, Honglei; Yang, Jack; Luo, Xiong; Zhu, Yueqin; Yang, Mary; Luo, Chaomin

2016-11-01

State-machine replication is a common way of constructing general purpose fault tolerance systems. To ensure replica consistency, requests must be executed sequentially according to some total order at all non-faulty replicas. Unfortunately, this could severely limit the system throughput. This issue has been partially addressed by identifying non-conflicting requests based on application semantics and executing these requests concurrently. However, identifying and tracking non-conflicting requests require intimate knowledge of application design and implementation, and a custom fault tolerance solution developed for one application cannot be easily adopted by other applications. Software transactional memory offers a new way of constructing concurrent programs. In this article, we present the mechanisms needed to retrofit existing concurrency control algorithms designed for software transactional memory for state-machine replication. The main benefit for using software transactional memory in state-machine replication is that general purpose concurrency control mechanisms can be designed without deep knowledge of application semantics. As such, new fault tolerance systems based on state-machine replications with excellent throughput can be easily designed and maintained. In this article, we introduce three different concurrency control mechanisms for state-machine replication using software transactional memory, namely, ordered strong strict two-phase locking, conventional timestamp-based multiversion concurrency control, and speculative timestamp-based multiversion concurrency control. Our experiments show that speculative timestamp-based multiversion concurrency control mechanism has the best performance in all types of workload, the conventional timestamp-based multiversion concurrency control offers the worst performance due to high abort rate in the presence of even moderate contention between transactions. The ordered strong strict two-phase locking mechanism offers the simplest solution with excellent performance in low contention workload, and fairly good performance in high contention workload.

High-throughput state-machine replication using software transactional memory

PubMed Central

Yang, William; Zhang, Honglei; Yang, Jack; Luo, Xiong; Zhu, Yueqin; Yang, Mary; Luo, Chaomin

2017-01-01

State-machine replication is a common way of constructing general purpose fault tolerance systems. To ensure replica consistency, requests must be executed sequentially according to some total order at all non-faulty replicas. Unfortunately, this could severely limit the system throughput. This issue has been partially addressed by identifying non-conflicting requests based on application semantics and executing these requests concurrently. However, identifying and tracking non-conflicting requests require intimate knowledge of application design and implementation, and a custom fault tolerance solution developed for one application cannot be easily adopted by other applications. Software transactional memory offers a new way of constructing concurrent programs. In this article, we present the mechanisms needed to retrofit existing concurrency control algorithms designed for software transactional memory for state-machine replication. The main benefit for using software transactional memory in state-machine replication is that general purpose concurrency control mechanisms can be designed without deep knowledge of application semantics. As such, new fault tolerance systems based on state-machine replications with excellent throughput can be easily designed and maintained. In this article, we introduce three different concurrency control mechanisms for state-machine replication using software transactional memory, namely, ordered strong strict two-phase locking, conventional timestamp-based multiversion concurrency control, and speculative timestamp-based multiversion concurrency control. Our experiments show that speculative timestamp-based multiversion concurrency control mechanism has the best performance in all types of workload, the conventional timestamp-based multiversion concurrency control offers the worst performance due to high abort rate in the presence of even moderate contention between transactions. The ordered strong strict two-phase locking mechanism offers the simplest solution with excellent performance in low contention workload, and fairly good performance in high contention workload. PMID:29075049

Integrated Information Support System (IISS). Volume 5. Common Data Model Subsystem. Part 27. Distributed Request Supervisor Product Specification.

DTIC Science & Technology

1985-11-01

McAuto) Transaction Manager Subsystem during 1984/1985 period. On-Line Software Responsible for programming the International (OSI) Communications...Network Transaction Manager (NTM) in 1981/1984 period. Software Performance Responsible for directing the Engineering (SPE) work on performance...computer software Contained herein are theoretical and/or SCAN Project 1prierity sao referenoes that In so way reflect Air Forceowmed or -developed $62 LO

The Relationship between Transformational and Transactional Leadership Styles and Innovation Commitment and Output at Commercial Software Companies

ERIC Educational Resources Information Center

Golla, Eric James

2012-01-01

The purpose of this quantitative study was to discover whether relationships exist between leadership styles and innovation commitment and innovation output at commercial software companies. The leadership styles included transformational and transactional, and the innovation variables included (a) the percentage of expenses allocated to…

Impact of Recent Hardware and Software Trends on High Performance Transaction Processing and Analytics

NASA Astrophysics Data System (ADS)

Mohan, C.

In this paper, I survey briefly some of the recent and emerging trends in hardware and software features which impact high performance transaction processing and data analytics applications. These features include multicore processor chips, ultra large main memories, flash storage, storage class memories, database appliances, field programmable gate arrays, transactional memory, key-value stores, and cloud computing. While some applications, e.g., Web 2.0 ones, were initially built without traditional transaction processing functionality in mind, slowly system architects and designers are beginning to address such previously ignored issues. The availability, analytics and response time requirements of these applications were initially given more importance than ACID transaction semantics and resource consumption characteristics. A project at IBM Almaden is studying the implications of phase change memory on transaction processing, in the context of a key-value store. Bitemporal data management has also become an important requirement, especially for financial applications. Power consumption and heat dissipation properties are also major considerations in the emergence of modern software and hardware architectural features. Considerations relating to ease of configuration, installation, maintenance and monitoring, and improvement of total cost of ownership have resulted in database appliances becoming very popular. The MapReduce paradigm is now quite popular for large scale data analysis, in spite of the major inefficiencies associated with it.

"Making Do": Adapting Transaction Systems to Organizational Needs.

ERIC Educational Resources Information Center

Barreau, Deborah K.

2001-01-01

Discusses transaction systems that are designed for rapid data entry and task completion, and describes a study of three organizations that use commercial off-the-shelf software (COTS) products for providing customer service as well as for processing transactions. Concludes that organizations made do with systems designed for one application to…

The Fight Against UCITA.

ERIC Educational Resources Information Center

Neal, James G.

2000-01-01

Discusses objections in the library community to the Uniform Computer Information Transactions Act (UCITA), a legal framework being considered by state governments regarding computer information, transactions, and software. Topics include copyright issues; user needs for access to information; license agreements; and costs that may prevent…

Transaction Logging.

ERIC Educational Resources Information Center

Jones, S.; And Others

1997-01-01

Discusses the use of transaction logging in Okapi-related projects to allow search algorithms and user interfaces to be investigated, evaluated, and compared. A series of examples is presented, illustrating logging software for character-based and graphical user interface systems, and demonstrating the usefulness of relational database management…

Identifying Bitcoin users by transaction behavior

NASA Astrophysics Data System (ADS)

Monaco, John V.

2015-05-01

Digital currencies, such as Bitcoin, offer convenience and security to criminals operating in the black marketplace. Some Bitcoin marketplaces, such as Silk Road, even claim anonymity. This claim contradicts the findings in this work, where long term transactional behavior is used to identify and verify account holders. Transaction timestamps and network properties observed over time contribute to this finding. The timestamp of each transaction is the result of many factors: the desire purchase an item, daily schedule and activities, as well as hardware and network latency. Dynamic network properties of the transaction, such as coin flow and the number of edge outputs and inputs, contribute further to reveal account identity. In this paper, we propose a novel methodology for identifying and verifying Bitcoin users based on the observation of Bitcoin transactions over time. The behavior we attempt to quantify roughly occurs in the social band of Newell's time scale. A subset of the Blockchain 230686 is taken, selecting users that initiated between 100 and 1000 unique transactions per month for at least 6 different months. This dataset shows evidence of being nonrandom and nonlinear, thus a dynamical systems approach is taken. Classification and authentication accuracies are obtained under various representations of the monthly Bitcoin samples: outgoing transactions, as well as both outgoing and incoming transactions are considered, along with the timing and dynamic network properties of transaction sequences. The most appropriate representations of monthly Bitcoin samples are proposed. Results show an inherent lack of anonymity by exploiting patterns in long-term transactional behavior.

31 CFR 800.301 - Transactions that are covered transactions.

Code of Federal Regulations, 2010 CFR

2010-07-01

..., and maintained relationships with its prior customers, all of which were transferred to Corporation A..., customer list, equipment, and inventory management software used to operate the facility. Under these facts... physical facility, and would not include customer lists, intellectual property, or other proprietary...

31 CFR 800.301 - Transactions that are covered transactions.

Code of Federal Regulations, 2014 CFR

2014-07-01

..., and maintained relationships with its prior customers, all of which were transferred to Corporation A..., customer list, equipment, and inventory management software used to operate the facility. Under these facts... physical facility, and would not include customer lists, intellectual property, or other proprietary...

31 CFR 800.301 - Transactions that are covered transactions.

Code of Federal Regulations, 2012 CFR

2012-07-01

..., and maintained relationships with its prior customers, all of which were transferred to Corporation A..., customer list, equipment, and inventory management software used to operate the facility. Under these facts... physical facility, and would not include customer lists, intellectual property, or other proprietary...

31 CFR 800.301 - Transactions that are covered transactions.

Code of Federal Regulations, 2013 CFR

2013-07-01

..., and maintained relationships with its prior customers, all of which were transferred to Corporation A..., customer list, equipment, and inventory management software used to operate the facility. Under these facts... physical facility, and would not include customer lists, intellectual property, or other proprietary...

31 CFR 800.301 - Transactions that are covered transactions.

Code of Federal Regulations, 2011 CFR

2011-07-01

..., and maintained relationships with its prior customers, all of which were transferred to Corporation A..., customer list, equipment, and inventory management software used to operate the facility. Under these facts... physical facility, and would not include customer lists, intellectual property, or other proprietary...

Using Utility Functions to Control a Distributed Storage System

DTIC Science & Technology

2008-05-01

Pinheiro et al. [2007] suggest this is not an accurate assumption. Nicola and Goyal [1990] examined correlated failures across multiversion software...F. and Goyal, A. (1990). Modeling of correlated failures and community error recovery in multiversion software. IEEE Transactions on Software

Complexity Measure for the Prototype System Description Language (PSDL)

DTIC Science & Technology

2002-06-01

Albrecht, A. and Gaffney , J., Software Function Source Lines of Code and Development Effort Prediction, IEEE Transactions on Software Engineering...Through Meausrement”; Proceedings of the IEEE, Vol. 77, No. 4, April 89. Schach, Stephen, R., Software Engineering, Second Edition, IRWIN, Burr Ridge

Using Colored Stochastic Petri Net (CS-PN) software for protocol specification, validation, and evaluation

NASA Technical Reports Server (NTRS)

Zenie, Alexandre; Luguern, Jean-Pierre

1987-01-01

The specification, verification, validation, and evaluation, which make up the different steps of the CS-PN software are outlined. The colored stochastic Petri net software is applied to a Wound/Wait protocol decomposable into two principal modules: request or couple (transaction, granule) treatment module and wound treatment module. Each module is specified, verified, validated, and then evaluated separately, to deduce a verification, validation and evaluation of the complete protocol. The colored stochastic Petri nets tool is shown to be a natural extension of the stochastic tool, adapted to distributed systems and protocols, because the color conveniently takes into account the numerous sites, transactions, granules and messages.

CICS Region Virtualization for Cost Effective Application Development

ERIC Educational Resources Information Center

Khan, Kamal Waris

2012-01-01

Mainframe is used for hosting large commercial databases, transaction servers and applications that require a greater degree of reliability, scalability and security. Customer Information Control System (CICS) is a mainframe software framework for implementing transaction services. It is designed for rapid, high-volume online processing. In order…

31 CFR 560.538 - Authorized transactions necessary and ordinarily incident to publishing.

Code of Federal Regulations, 2012 CFR

2012-07-01

... publication in electronic format, the addition of embedded software necessary for reading, browsing, navigating, or searching the written publication; (ii) Exporting embedded software necessary for reading, browsing, navigating, or searching a written publication in electronic format, provided that the software...

31 CFR 560.538 - Authorized transactions necessary and ordinarily incident to publishing.

Code of Federal Regulations, 2011 CFR

2011-07-01

... publication in electronic format, the addition of embedded software necessary for reading, browsing, navigating, or searching the written publication; (ii) Exporting embedded software necessary for reading, browsing, navigating, or searching a written publication in electronic format, provided that the software...

31 CFR 560.538 - Authorized transactions necessary and ordinarily incident to publishing.

Code of Federal Regulations, 2014 CFR

2014-07-01

... written publication in electronic format, the addition of embedded software necessary for reading, browsing, navigating, or searching the written publication; and (ii) Exporting embedded software necessary... that the software is designated as “EAR99” under the Export Administration Regulations, 15 CFR parts...

31 CFR 538.529 - Authorized transactions necessary and ordinarily incident to publishing.

Code of Federal Regulations, 2014 CFR

2014-07-01

... written publication in electronic format, the addition of embedded software necessary for reading, browsing, navigating, or searching the written publication; (ii) Exporting embedded software necessary for... software is classified as “EAR 99” under the Export Administration Regulations, 15 CFR parts 730-774 (the...

31 CFR 560.538 - Authorized transactions necessary and ordinarily incident to publishing.

Code of Federal Regulations, 2013 CFR

2013-07-01

... written publication in electronic format, the addition of embedded software necessary for reading, browsing, navigating, or searching the written publication; and (ii) Exporting embedded software necessary... that the software is designated as “EAR99” under the Export Administration Regulations, 15 CFR parts...

31 CFR 538.529 - Authorized transactions necessary and ordinarily incident to publishing.

Code of Federal Regulations, 2013 CFR

2013-07-01

... written publication in electronic format, the addition of embedded software necessary for reading, browsing, navigating, or searching the written publication; (ii) Exporting embedded software necessary for... software is classified as “EAR 99” under the Export Administration Regulations, 15 CFR parts 730-774 (the...

31 CFR 538.529 - Authorized transactions necessary and ordinarily incident to publishing.

Code of Federal Regulations, 2011 CFR

2011-07-01

... written publication in electronic format, the addition of embedded software necessary for reading, browsing, navigating, or searching the written publication; (ii) Exporting embedded software necessary for... software is classified as “EAR 99” under the Export Administration Regulations, 15 CFR parts 730-774 (the...

31 CFR 538.529 - Authorized transactions necessary and ordinarily incident to publishing.

Code of Federal Regulations, 2012 CFR

2012-07-01

... written publication in electronic format, the addition of embedded software necessary for reading, browsing, navigating, or searching the written publication; (ii) Exporting embedded software necessary for... software is classified as “EAR 99” under the Export Administration Regulations, 15 CFR parts 730-774 (the...

31 CFR 545.408 - Offshore transactions.

Code of Federal Regulations, 2010 CFR

2010-07-01

...) With respect to goods, software, technology, or services which the U.S. person knows, or has reason to... States of goods, software, technology or services owned or controlled by the Taliban or persons whose... dealing in such blocked goods, software, technology, or services. (c) Example. A U.S. person may not...

MADGE: scalable distributed data management software for cDNA microarrays.

PubMed

McIndoe, Richard A; Lanzen, Aaron; Hurtz, Kimberly

2003-01-01

The human genome project and the development of new high-throughput technologies have created unparalleled opportunities to study the mechanism of diseases, monitor the disease progression and evaluate effective therapies. Gene expression profiling is a critical tool to accomplish these goals. The use of nucleic acid microarrays to assess the gene expression of thousands of genes simultaneously has seen phenomenal growth over the past five years. Although commercial sources of microarrays exist, investigators wanting more flexibility in the genes represented on the array will turn to in-house production. The creation and use of cDNA microarrays is a complicated process that generates an enormous amount of information. Effective data management of this information is essential to efficiently access, analyze, troubleshoot and evaluate the microarray experiments. We have developed a distributable software package designed to track and store the various pieces of data generated by a cDNA microarray facility. This includes the clone collection storage data, annotation data, workflow queues, microarray data, data repositories, sample submission information, and project/investigator information. This application was designed using a 3-tier client server model. The data access layer (1st tier) contains the relational database system tuned to support a large number of transactions. The data services layer (2nd tier) is a distributed COM server with full database transaction support. The application layer (3rd tier) is an internet based user interface that contains both client and server side code for dynamic interactions with the user. This software is freely available to academic institutions and non-profit organizations at http://www.genomics.mcg.edu/niddkbtc.

31 CFR 560.418 - Release of technology or software in the United States or a third country.

Code of Federal Regulations, 2014 CFR

2014-07-01

... 31 Money and Finance:Treasury 3 2014-07-01 2014-07-01 false Release of technology or software in... IRANIAN TRANSACTIONS AND SANCTIONS REGULATIONS Interpretations § 560.418 Release of technology or software in the United States or a third country. The release of technology or software in the United States...

31 CFR 560.418 - Release of technology or software in the United States or a third country.

Code of Federal Regulations, 2011 CFR

2011-07-01

... 31 Money and Finance:Treasury 3 2011-07-01 2011-07-01 false Release of technology or software in... IRANIAN TRANSACTIONS REGULATIONS Interpretations § 560.418 Release of technology or software in the United States or a third country. The release of technology or software in the United States, or by a United...

31 CFR 560.418 - Release of technology or software in the United States or a third country.

Code of Federal Regulations, 2012 CFR

2012-07-01

... 31 Money and Finance:Treasury 3 2012-07-01 2012-07-01 false Release of technology or software in... IRANIAN TRANSACTIONS REGULATIONS Interpretations § 560.418 Release of technology or software in the United States or a third country. The release of technology or software in the United States, or by a United...

31 CFR 560.418 - Release of technology or software in the United States or a third country.

Code of Federal Regulations, 2010 CFR

2010-07-01

... 31 Money and Finance: Treasury 3 2010-07-01 2010-07-01 false Release of technology or software in... IRANIAN TRANSACTIONS REGULATIONS Interpretations § 560.418 Release of technology or software in the United States or a third country. The release of technology or software in the United States, or by a United...

31 CFR 560.418 - Release of technology or software in the United States or a third country.

Code of Federal Regulations, 2013 CFR

2013-07-01

... 31 Money and Finance:Treasury 3 2013-07-01 2013-07-01 false Release of technology or software in... IRANIAN TRANSACTIONS AND SANCTIONS REGULATIONS Interpretations § 560.418 Release of technology or software in the United States or a third country. The release of technology or software in the United States...

Paradigm of Legal Protection of Computer Software Contracts in the United States: Brief Overview of “Principles of the Law of Software Contracts”

NASA Astrophysics Data System (ADS)

Furuya, Haruhisa; Hiratsuka, Mitsuyoshi

This article overviews the historical transition of legal protection of Computer software contracts in the Unite States and presents how it should function under Uniform Commercial Code and its amended Article 2B, Uniform Computer Information Transactions Act, and also recently-approved “Principles of the Law of Software Contracts”.

A Review of the Suitability of Available Computer Aided Software Engineering (CASE) Tools for the Small Software Development Environment

DTIC Science & Technology

1989-07-11

LITERATURE CITED [Boeh73] Boehm, Barry W., "Software and its Impact: A Quantitative Assessment," Datamation, 19, 5, (May 1973), pp 48-59. [Boeh76...Boehm, Barry W., "Software Engineering," IEEE Transactions on Computers, C-25, 12, (December 1976), pp 1226-1241. [Boeh81a] Boehm, Barry W., Software...Engineering Economics, Prentice-Hall, Inc., Englewood Cliffs, NJ, (1981). [Boeh8lb] Boehm, Barry W., "An Experiment in Small Scale Application Software

ProcessGene-Connect: SOA Integration between Business Process Models and Enactment Transactions of Enterprise Software Systems

NASA Astrophysics Data System (ADS)

Wasser, Avi; Lincoln, Maya

In recent years, both practitioners and applied researchers have become increasingly interested in methods for integrating business process models and enterprise software systems through the deployment of enabling middleware. Integrative BPM research has been mainly focusing on the conversion of workflow notations into enacted application procedures, and less effort has been invested in enhancing the connectivity between design level, non-workflow business process models and related enactment systems such as: ERP, SCM and CRM. This type of integration is useful at several stages of an IT system lifecycle, from design and implementation through change management, upgrades and rollout. The paper presents an integration method that utilizes SOA for connecting business process models with corresponding enterprise software systems. The method is then demonstrated through an Oracle E-Business Suite procurement process and its ERP transactions.

The Effects of Embedding Generative Cognitive Strategies in Science Software.

ERIC Educational Resources Information Center

Barba, Robertta H.; Merchant, Linda J.

1990-01-01

Discussed is whether embedding generative cognitive strategies in microcomputer courseware improves student performance on cognitive assessment measures and on insect classification tasks. The effects of transactional software on students' knowledge of insect anatomy and principles of insect classification were also investigated. (KR)

Read Code Quality Assurance

PubMed Central

Schulz, Erich; Barrett, James W.; Price, Colin

1998-01-01

As controlled clinical vocabularies assume an increasing role in modern clinical information systems, so the issue of their quality demands greater attention. In order to meet the resulting stringent criteria for completeness and correctness, a quality assurance system comprising a database of more than 500 rules is being developed and applied to the Read Thesaurus. The authors discuss the requirement to apply quality assurance processes to their dynamic editing database in order to ensure the quality of exported products. Sources of errors include human, hardware, and software factors as well as new rules and transactions. The overall quality strategy includes prevention, detection, and correction of errors. The quality assurance process encompasses simple data specification, internal consistency, inspection procedures and, eventually, field testing. The quality assurance system is driven by a small number of tables and UNIX scripts, with “business rules” declared explicitly as Structured Query Language (SQL) statements. Concurrent authorship, client-server technology, and an initial failure to implement robust transaction control have all provided valuable lessons. The feedback loop for error management needs to be short. PMID:9670131

Read Code quality assurance: from simple syntax to semantic stability.

PubMed

Schulz, E B; Barrett, J W; Price, C

1998-01-01

As controlled clinical vocabularies assume an increasing role in modern clinical information systems, so the issue of their quality demands greater attention. In order to meet the resulting stringent criteria for completeness and correctness, a quality assurance system comprising a database of more than 500 rules is being developed and applied to the Read Thesaurus. The authors discuss the requirement to apply quality assurance processes to their dynamic editing database in order to ensure the quality of exported products. Sources of errors include human, hardware, and software factors as well as new rules and transactions. The overall quality strategy includes prevention, detection, and correction of errors. The quality assurance process encompasses simple data specification, internal consistency, inspection procedures and, eventually, field testing. The quality assurance system is driven by a small number of tables and UNIX scripts, with "business rules" declared explicitly as Structured Query Language (SQL) statements. Concurrent authorship, client-server technology, and an initial failure to implement robust transaction control have all provided valuable lessons. The feedback loop for error management needs to be short.

Method and apparatus for managing transactions with connected computers

DOEpatents

Goldsmith, Steven Y.; Phillips, Laurence R.; Spires, Shannon V.

2003-01-01

The present invention provides a method and apparatus that make use of existing computer and communication resources and that reduce the errors and delays common to complex transactions such as international shipping. The present invention comprises an agent-based collaborative work environment that assists geographically distributed commercial and government users in the management of complex transactions such as the transshipment of goods across the U.S.-Mexico border. Software agents can mediate the creation, validation and secure sharing of shipment information and regulatory documentation over the Internet, using the World-Wide Web to interface with human users.

31 CFR 500.533 - Exportations, reexportations, and incidental transactions.

Code of Federal Regulations, 2010 CFR

2010-07-01

... CONTROL REGULATIONS Licenses, Authorizations and Statements of Licensing Policy § 500.533 Exportations..., software, or technology (including technical data) from the United States or reexportation of U.S.-origin goods, software, or technology from a foreign country to any person in a designated foreign country or...

Price Based Local Power Distribution Management System (Local Power Distribution Manager) v1.0

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

BROWN, RICHARD E.; CZARNECKI, STEPHEN; SPEARS, MICHAEL

2016-11-28

A trans-active energy micro-grid controller is implemented in the VOLTTRON distributed control platform. The system uses the price of electricity as the mechanism for conducting transactions that are used to manage energy use and to balance supply and demand. In order to allow testing and analysis of the control system, the implementation is designed to run completely as a software simulation, while allowing the inclusion of selected hardware that physically manages power. Equipment to be integrated with the micro-grid controller must have an IP (Internet Protocol)-based network connection and a software "driver" must exist to translate data communications between themore » device and the controller.« less

Designing the Undesignable: Social Software and Control

ERIC Educational Resources Information Center

Dron, Jon

2007-01-01

Social software, such as blogs, wikis, tagging systems and collaborative filters, treats the group as a first-class object within the system. Drawing from theories of transactional distance and control, this paper proposes a model of e-learning that extends traditional concepts of learner-teacher-content interactions to include these emergent…

Discovering and Mitigating Software Vulnerabilities through Large-Scale Collaboration

ERIC Educational Resources Information Center

Zhao, Mingyi

2016-01-01

In today's rapidly digitizing society, people place their trust in a wide range of digital services and systems that deliver latest news, process financial transactions, store sensitive information, etc. However, this trust does not have a solid foundation, because software code that supports this digital world has security vulnerabilities. These…

Naming in a Programming Support Environment.

DTIC Science & Technology

1984-02-01

and Control, 1974. 10. T. E. Cheatham. An Overview of the Harvard Program Development System. I; Software Engineering Environments, H. Hunke, Ed.. North...Holland Publishing Compary, 1981, pp. 253-266. 11. T. E. Cheatham. Comparing Programming Support Environments. In Software Engineering Environments...Company. 1981. Third Edition 16. F. DeRemer and H Kron Programming -inthe Large Versus Programming -in-theSmall. IEEE Transactions on Software Engineering

Making the most of a translator.

PubMed

Dannenfeldt, D

1994-01-01

Anaheim Memorial Hospital in California is a trailblazer. It's one of the first hospitals in the nation to use translation software for both supply procurement and claims-related transactions. Initially, it acquired the software to streamline the ordering of supplies by shifting to standard electronic formats. Today, the hospital is using the software to receive electronic remittance advice, and it has plans for other labor-saving applications.

Collaboration rules.

PubMed

Evans, Philip; Wolf, Bob

2005-01-01

Corporate leaders seeking to boost growth, learning, and innovation may find the answer in a surprising place: the Linux open-source software community. Linux is developed by an essentially volunteer, self-organizing community of thousands of programmers. Most leaders would sell their grandmothers for workforces that collaborate as efficiently, frictionlessly, and creatively as the self-styled Linux hackers. But Linux is software, and software is hardly a model for mainstream business. The authors have, nonetheless, found surprising parallels between the anarchistic, caffeinated, hirsute world of Linux hackers and the disciplined, tea-sipping, clean-cut world of Toyota engineering. Specifically, Toyota and Linux operate by rules that blend the self-organizing advantages of markets with the low transaction costs of hierarchies. In place of markets' cash and contracts and hierarchies' authority are rules about how individuals and groups work together (with rigorous discipline); how they communicate (widely and with granularity); and how leaders guide them toward a common goal (through example). Those rules, augmented by simple communication technologies and a lack of legal barriers to sharing information, create rich common knowledge, the ability to organize teams modularly, extraordinary motivation, and high levels of trust, which radically lowers transaction costs. Low transaction costs, in turn, make it profitable for organizations to perform more and smaller transactions--and so increase the pace and flexibility typical of high-performance organizations. Once the system achieves critical mass, it feeds on itself. The larger the system, the more broadly shared the knowledge, language, and work style. The greater individuals' reputational capital, the louder the applause and the stronger the motivation. The success of Linux is evidence of the power of that virtuous circle. Toyota's success is evidence that it is also powerful in conventional companies.

Playing Detective: Reconstructing Software Architecture from Available Evidence

DTIC Science & Technology

1997-10-01

information • PostgreSQL (based on POSTGRES [Stonebraker 90]) for model storage • IAPR [Kazman 96c], RMTool [Murphy 95], and Perl for analysis and...720-741. Stonebraker, M.; Rowe, L; & Hirohama, M. ’The Implementation of POSTGRES ." IEEE Transactions on Knowledge and Data Engineering 2,1 (March...Engineering 19,7 (July 1993): 720-741. Stonebraker, M.; Rowe, L; & Hirohama, M. "The Implementation of POSTGRES ." IEEE Transactions on Knowledge and

North American oriented strand board markets, arbitrage activity, and market price dynamics: A smooth transition approach

Treesearch

Barry Goodwin; Matthew Holt; Jeffrey P. Prestemon

2011-01-01

Price dynamics for North American oriented strand board markets are examined. The role of transactions costs are explored vis-à-vis the law of one price. Nonlinearities induced by unobservable transactions costs are modeled by estimating time-varying smooth transition autoregressions (TV-STARs). Results indicate that nonlinearity and structural change are important...

Modelling opinion formation driven communities in social networks

NASA Astrophysics Data System (ADS)

Iñiguez, Gerardo; Barrio, Rafael A.; Kertész, János; Kaski, Kimmo K.

2011-09-01

In a previous paper we proposed a model to study the dynamics of opinion formation in human societies by a co-evolution process involving two distinct time scales of fast transaction and slower network evolution dynamics. In the transaction dynamics we take into account short range interactions as discussions between individuals and long range interactions to describe the attitude to the overall mood of society. The latter is handled by a uniformly distributed parameter α, assigned randomly to each individual, as quenched personal bias. The network evolution dynamics is realised by rewiring the societal network due to state variable changes as a result of transaction dynamics. The main consequence of this complex dynamics is that communities emerge in the social network for a range of values in the ratio between time scales. In this paper we focus our attention on the attitude parameter α and its influence on the conformation of opinion and the size of the resulting communities. We present numerical studies and extract interesting features of the model that can be interpreted in terms of social behaviour.

High-energy physics software parallelization using database techniques

NASA Astrophysics Data System (ADS)

Argante, E.; van der Stok, P. D. V.; Willers, I.

1997-02-01

A programming model for software parallelization, called CoCa, is introduced that copes with problems caused by typical features of high-energy physics software. By basing CoCa on the database transaction paradimg, the complexity induced by the parallelization is for a large part transparent to the programmer, resulting in a higher level of abstraction than the native message passing software. CoCa is implemented on a Meiko CS-2 and on a SUN SPARCcenter 2000 parallel computer. On the CS-2, the performance is comparable with the performance of native PVM and MPI.

Impact of stock market structure on intertrade time and price dynamics.

PubMed

Ivanov, Plamen Ch; Yuen, Ainslie; Perakakis, Pandelis

2014-01-01

We analyse times between consecutive transactions for a diverse group of stocks registered on the NYSE and NASDAQ markets, and we relate the dynamical properties of the intertrade times with those of the corresponding price fluctuations. We report that market structure strongly impacts the scale-invariant temporal organisation in the transaction timing of stocks, which we have observed to have long-range power-law correlations. Specifically, we find that, compared to NYSE stocks, stocks registered on the NASDAQ exhibit significantly stronger correlations in their transaction timing on scales within a trading day. Further, we find that companies that transfer from the NASDAQ to the NYSE show a reduction in the correlation strength of transaction timing on scales within a trading day, indicating influences of market structure. We also report a persistent decrease in correlation strength of intertrade times with increasing average intertrade time and with corresponding decrease in companies' market capitalization-a trend which is less pronounced for NASDAQ stocks. Surprisingly, we observe that stronger power-law correlations in intertrade times are coupled with stronger power-law correlations in absolute price returns and higher price volatility, suggesting a strong link between the dynamical properties of intertrade times and the corresponding price fluctuations over a broad range of time scales. Comparing the NYSE and NASDAQ markets, we demonstrate that the stronger correlations we find in intertrade times for NASDAQ stocks are associated with stronger correlations in absolute price returns and with higher volatility, suggesting that market structure may affect price behavior through information contained in transaction timing. These findings do not support the hypothesis of universal scaling behavior in stock dynamics that is independent of company characteristics and stock market structure. Further, our results have implications for utilising transaction timing patterns in price prediction and risk management optimization on different stock markets.

Impact of Stock Market Structure on Intertrade Time and Price Dynamics

PubMed Central

Ivanov, Plamen Ch.; Yuen, Ainslie; Perakakis, Pandelis

2014-01-01

We analyse times between consecutive transactions for a diverse group of stocks registered on the NYSE and NASDAQ markets, and we relate the dynamical properties of the intertrade times with those of the corresponding price fluctuations. We report that market structure strongly impacts the scale-invariant temporal organisation in the transaction timing of stocks, which we have observed to have long-range power-law correlations. Specifically, we find that, compared to NYSE stocks, stocks registered on the NASDAQ exhibit significantly stronger correlations in their transaction timing on scales within a trading day. Further, we find that companies that transfer from the NASDAQ to the NYSE show a reduction in the correlation strength of transaction timing on scales within a trading day, indicating influences of market structure. We also report a persistent decrease in correlation strength of intertrade times with increasing average intertrade time and with corresponding decrease in companies' market capitalization–a trend which is less pronounced for NASDAQ stocks. Surprisingly, we observe that stronger power-law correlations in intertrade times are coupled with stronger power-law correlations in absolute price returns and higher price volatility, suggesting a strong link between the dynamical properties of intertrade times and the corresponding price fluctuations over a broad range of time scales. Comparing the NYSE and NASDAQ markets, we demonstrate that the stronger correlations we find in intertrade times for NASDAQ stocks are associated with stronger correlations in absolute price returns and with higher volatility, suggesting that market structure may affect price behavior through information contained in transaction timing. These findings do not support the hypothesis of universal scaling behavior in stock dynamics that is independent of company characteristics and stock market structure. Further, our results have implications for utilising transaction timing patterns in price prediction and risk management optimization on different stock markets. PMID:24699376

Visualizing Dynamic Bitcoin Transaction Patterns.

PubMed

McGinn, Dan; Birch, David; Akroyd, David; Molina-Solana, Miguel; Guo, Yike; Knottenbelt, William J

2016-06-01

This work presents a systemic top-down visualization of Bitcoin transaction activity to explore dynamically generated patterns of algorithmic behavior. Bitcoin dominates the cryptocurrency markets and presents researchers with a rich source of real-time transactional data. The pseudonymous yet public nature of the data presents opportunities for the discovery of human and algorithmic behavioral patterns of interest to many parties such as financial regulators, protocol designers, and security analysts. However, retaining visual fidelity to the underlying data to retain a fuller understanding of activity within the network remains challenging, particularly in real time. We expose an effective force-directed graph visualization employed in our large-scale data observation facility to accelerate this data exploration and derive useful insight among domain experts and the general public alike. The high-fidelity visualizations demonstrated in this article allowed for collaborative discovery of unexpected high frequency transaction patterns, including automated laundering operations, and the evolution of multiple distinct algorithmic denial of service attacks on the Bitcoin network.

Visualizing Dynamic Bitcoin Transaction Patterns

PubMed Central

McGinn, Dan; Birch, David; Akroyd, David; Molina-Solana, Miguel; Guo, Yike; Knottenbelt, William J.

2016-01-01

Abstract This work presents a systemic top-down visualization of Bitcoin transaction activity to explore dynamically generated patterns of algorithmic behavior. Bitcoin dominates the cryptocurrency markets and presents researchers with a rich source of real-time transactional data. The pseudonymous yet public nature of the data presents opportunities for the discovery of human and algorithmic behavioral patterns of interest to many parties such as financial regulators, protocol designers, and security analysts. However, retaining visual fidelity to the underlying data to retain a fuller understanding of activity within the network remains challenging, particularly in real time. We expose an effective force-directed graph visualization employed in our large-scale data observation facility to accelerate this data exploration and derive useful insight among domain experts and the general public alike. The high-fidelity visualizations demonstrated in this article allowed for collaborative discovery of unexpected high frequency transaction patterns, including automated laundering operations, and the evolution of multiple distinct algorithmic denial of service attacks on the Bitcoin network. PMID:27441715

Performance modeling for large database systems

NASA Astrophysics Data System (ADS)

Schaar, Stephen; Hum, Frank; Romano, Joe

1997-02-01

One of the unique approaches Science Applications International Corporation took to meet performance requirements was to start the modeling effort during the proposal phase of the Interstate Identification Index/Federal Bureau of Investigations (III/FBI) project. The III/FBI Performance Model uses analytical modeling techniques to represent the III/FBI system. Inputs to the model include workloads for each transaction type, record size for each record type, number of records for each file, hardware envelope characteristics, engineering margins and estimates for software instructions, memory, and I/O for each transaction type. The model uses queuing theory to calculate the average transaction queue length. The model calculates a response time and the resources needed for each transaction type. Outputs of the model include the total resources needed for the system, a hardware configuration, and projected inherent and operational availability. The III/FBI Performance Model is used to evaluate what-if scenarios and allows a rapid response to engineering change proposals and technical enhancements.

Information systems analysis approach in hospitals: a national survey.

PubMed

Wong, B K; Sellaro, C L; Monaco, J A

1995-03-01

A survey of 216 hospitals reveals that some hospitals do not conduct cost-benefit analyses or analyze possible adverse effects in feasibility studies. In determining and analyzing system requirements, external factors that initiate the transaction are not examined, and computer-aided software engineering (CASE) tools are seldom used. Some hospitals do not investigate the advantages and disadvantages of using in-house-developed software versus purchased software packages in the evaluation of alternatives. The survey finds that, overall, most hospitals follow the traditional systems development life cycle (SDLC) approach in analyzing information systems.

Transactional Relationships among Cognitive Vulnerabilities, Stressors, and Depressive Symptoms in Adolescence

ERIC Educational Resources Information Center

Calvete, Esther; Orue, Izaskun; Hankin, Benjamin L.

2013-01-01

The transactional cognitive vulnerability to stress model Hankin & Abramson ('Psychological Bulletin," 127:773-796, 2001) extends the traditional diathesis-stress model by proposing that the relationships among cognitions, depressive symptoms, and stressors are dynamic and bidirectional. In this study three different pathways among these variables…

25 CFR 543.7 - What are the minimum internal control standards for bingo?

Code of Federal Regulations, 2010 CFR

2010-04-01

... information technology security standards can be found in § 543.16 of this part.) (2) The game software... applicable voucher system, player interface or other transaction history records to verify the validity of...

Investigating Advances in the Acquisition of Systems Based on Open Architecture and Open Source Software

DTIC Science & Technology

2011-08-01

dominates the global mobile application market and mobile computing software ecosystems. But overall, OA systems are not necessarily excluded from...License 3.0 (OSL)  Corel Transactional License ( CTL ) The licenses were chosen to represent a variety of kinds of licenses, and include one...proprietary ( CTL ), three academic (Apache, BSD, MIT), and six reciprocal licenses (CPL, EPL, GPL, LGPL, MPL, OSL) that take varying approaches in

SIMOGEN - An Object-Oriented Language for Simulation

DTIC Science & Technology

1989-03-01

program generator must also be written in the same prcgramming languaje . In this case, the C language was chosen, for the following main reasons...3), March 88. 4. PRESTO: A System for Object-Oriented Parallel Programing B N Bershad, E D Lazowska & H M Levy Software Practice and Experience, Vol...U.S. Depare nt of Defence ANSI/ML-STD 1815A. 7. Object-oriented Development Grady Booch Transactions on Software Engineering , February 86. 8. A

Assertion Mechanisms in Programming Languages.

DTIC Science & Technology

1979-11-01

the Construction and Verific3tion of ALPHAPD Programs ", IEEE Transactions on Software Engineering , voL. 2, no. 4, p. 253-265, 1 1-7t [Zelkooitz a...be true at a point in program execut ion. The languaje designer has several options when considering the semantics of an assertion mechanism... Software Engineering , vol. SE-i, no. 2, p. 156-173, June 1975. [Hansen] G. J. Hansen, G. A. Shoults and J. D. Coinmeat, "Construction of a Transportaole

Asset Prices and Trading Volume under Fixed Transactions Costs.

ERIC Educational Resources Information Center

Lo, Andrew W.; Mamaysky, Harry; Wang, Jiang

2004-01-01

We propose a dynamic equilibrium model of asset prices and trading volume when agents face fixed transactions costs. We show that even small fixed costs can give rise to large "no-trade" regions for each agent's optimal trading policy. The inability to trade more frequently reduces the agents' asset demand and in equilibrium gives rise to a…

Impact of Stock Market Structure on Intertrade Time and Price Dynamics

NASA Astrophysics Data System (ADS)

Yuen, Ainslie; Ivanov, Plamen Ch.

2005-08-01

The NYSE and NASDAQ stock markets have very different structures and there is continuing controversy over whether differences in stock price behaviour are due to market structure or company characteristics. As the influence of market structure on stock prices may be obscured by exogenous factors such as demand and supply, we hypothesize that modulation of the flow of transactions due to market operations may carry a stronger imprint of the internal market mechanism. We analyse times between consecutive transactions (ITT) for NYSE and NASDAQ stocks, and we relate the dynamical properties of the ITT with those of the corresponding price fluctuations. We find a robust scale-invariant temporal organisation in the ITT of stocks which is independent of individual company characteristics and industry sector, but which depends on market structure. We find that stocks registered on the NASDAQ exhibit stronger correlations in their transaction timing within a trading day, compared with NYSE stocks. Further, we find that companies that transfer from the NASDAQ to the NYSE show a reduction in the correlation strength of transaction timing within a trading day, after the move, suggesting influences of market structure. Surprisingly, we also observe that stronger power-law correlations in the ITT are coupled with stronger power-law correlations in absolute price returns and higher price volatility, suggesting a strong link between the dynamical properties of ITT and the corresponding price fluctuations over a broad range of time scales. Comparing the NYSE and NASDAQ, we demonstrate that the higher correlations we find in ITT for NASDAQ stocks are matched by higher correlations in absolute price returns and by higher volatility, suggesting that market structure may affect price behaviour through information contained in transaction timing.

Real Time Business Analytics for Buying or Selling Transaction on Commodity Warehouse Receipt System

NASA Astrophysics Data System (ADS)

Djatna, Taufik; Teniwut, Wellem A.; Hairiyah, Nina; Marimin

2017-10-01

The requirement for smooth information such as buying and selling is essential for commodity warehouse receipt system such as dried seaweed and their stakeholders to transact for an operational transaction. Transactions of buying or selling a commodity warehouse receipt system are a risky process due to the fluctuations in dynamic commodity prices. An integrated system to determine the condition of the real time was needed to make a decision-making transaction by the owner or prospective buyer. The primary motivation of this study is to propose computational methods to trace market tendency for either buying or selling processes. The empirical results reveal that feature selection gain ratio and k-NN outperforms other forecasting models, implying that the proposed approach is a promising alternative to the stock market tendency of warehouse receipt document exploration with accurate level rate is 95.03%.

Volttron version 5.0

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

VOLTTRON is an agent execution platform providing services to its agents that allow them to easily communicate with physical devices and other resources. VOLTTRON delivers an innovative distributed control and sensing software platform that supports modern control strategies, including agent-based and transaction-based controls. It enables mobile and stationary software agents to perform information gathering, processing, and control actions. VOLTTRON can independently manage a wide range of applications, such as HVAC systems, electric vehicles, distributed energy or entire building loads, leading to improved operational efficiency.

WEB Services Networks and Technological Hybrids — The Integration Challenges of WAN Distributed Computing for ASP Providers

NASA Astrophysics Data System (ADS)

Mroczkiewicz, Pawel

A necessity of integration of both information systems and office software existing in organizations has had a long history. The beginning of this kind of solutions reaches back to the old generation of network protocols called EDI (Electronic Data Interchange) and EDIFACT standard, which was initiated in 1988 and has dynamically evolved ever since (S. Michalski, M. Suskiewicz, 1995). The mentioned protocol was usually used for converting documents into natural formats processed by applications. It caused problems with binary files and, furthermore, the communication mechanisms had to be modified each time new documents or applications were added. When we compare EDI with the previously used communication mechanisms, EDI was a great step forward as it was the first, big scale attempt to define standards of data interchange between the applications in business transactions (V. Leyland, 1995, p. 47).

'They have embraced a different behaviour': transactional sex and family dynamics in eastern Congo's conflict.

PubMed

Maclin, Beth; Kelly, Jocelyn; Kabanga, Justin; VanRooyen, Michael

2015-01-01

The decades-long conflict in eastern Democratic Republic of the Congo (DRC) has resulted in major changes to local economies, strained social networks and insecurity. This environment forces many to pursue unconventional and, at times, socially stigmatised avenues for income. This paper explores the ways in which individuals in eastern DRC engage in, and are affected by, the commoditisation of sex within the context of decades of violent conflict. Focus group discussions conducted with men and women in 2009-2010 highlight how the war in the region has placed individuals, particularly women, in dire economic circumstances, while also changing their roles within families. In the face of severe poverty, women and girls may choose to engage in transactional sex in order to support themselves and their families. Discussants detailed how engaging in transactional sex due to an economic imperative has nonetheless damaged women's relationships with family members between spouses as well as parents and their children through breach of trust and failure to provide. These focus group discussions elucidate how transactional sex is both a symptom of, and a catalyst for, changes within family dynamics in eastern DRC.

Organizing Equity Exchanges

NASA Astrophysics Data System (ADS)

Schaper, Torsten

In the last years equity exchanges have diversified their operations into business areas such as derivatives trading, post-trading services, and software sales. Securities trading and post-trading are subject to economies of scale and scope. The integration of these functions into one institution ensures efficiency by economizing on transactions costs.

Right Filter for the Wrong Addresses: Regulating Net Access.

ERIC Educational Resources Information Center

Simpson, Carol

1996-01-01

Guides librarians in evaluating "filtering" software which schools may purchase for restricting access to potentially inappropriate Internet sites. This article discusses the workings of filtering programs and practical and ethical questions such as: how sites are restricted, who decides, and whether transactions are monitored.…

Space Station Information System - Concepts and international issues

NASA Technical Reports Server (NTRS)

Williams, R. B.; Pruett, David; Hall, Dana L.

1987-01-01

The Space Station Information System (SSIS) is outlined in terms of its functions and probable physical facilities. The SSIS includes flight element systems as well as existing and planned institutional systems such as the NASA Communications System, the Tracking and Data Relay Satellite System, and the data and communications networks of the international partners. The SSIS strives to provide both a 'user friendly' environment and a software environment which will allow for software transportability and interoperability across the SSIS. International considerations are discussed as well as project management, software commonality, data communications standards, data security, documentation commonality, transaction management, data flow cross support, and key technologies.

Program Developments: Formal Explanations of Implementations.

DTIC Science & Technology

1982-08-01

January 1982. [Cheatham 791 Cheatham, T. E., G. H. Holloway, and J. A. Townley . "Symbolic evaluation and the analysis of programs," IEEE Transactions on...Software Engineering 5, (4), July 1979, 402-417. [Cheatham 81] Cheatham, T. E., G. H. Holloway, and J. A. Townley , "Program refinement by

A Software Tool for the Rapid Analysis of the Sintering Behavior of Particulate Bodies

DTIC Science & Technology

2017-11-01

bounded by a region that the user selects via cross hairs . Future plot analysis features, such as more complicated curve fitting and modeling functions...German RM. Grain growth behavior of tungsten heavy alloys based on the master sintering curve concept. Metallurgical and Materials Transactions A

A Transactional Approach to Person-Environment Fit: Reciprocal Relations between Personality Development and Career Role Growth across Young to Middle Adulthood

ERIC Educational Resources Information Center

Wille, Bart; Beyers, Wim; De Fruyt, Filip

2012-01-01

In order to enhance our understanding of person-environment transactions, the present longitudinal cohort study examined the dynamic interactions between career role development and personality development over a time interval of 15 years. A sample of college alumni (N = 260) provided self-reports on Big five traits three months prior to…

The commodity terms of trade, unit roots, and nonlinear alternatives: a smooth transition approach

Treesearch

Barry K. Goodwin; Matthew T. Holt; Jeffrey P. Prestemon

2008-01-01

Market price dynamics for North American oriented strand board markets are examined.  Specifically, the role of transactions costs are examined vis-a-vis the law of one price. Weekly data for the January 3rd, 1995 through April 14th, 2006 period are used in the analysis. Nonlinearities induced by unobservable transactions costs are modelled by estimating smooth...

Do the rich get richer? An empirical analysis of the Bitcoin transaction network.

PubMed

Kondor, Dániel; Pósfai, Márton; Csabai, István; Vattay, Gábor

2014-01-01

The possibility to analyze everyday monetary transactions is limited by the scarcity of available data, as this kind of information is usually considered highly sensitive. Present econophysics models are usually employed on presumed random networks of interacting agents, and only some macroscopic properties (e.g. the resulting wealth distribution) are compared to real-world data. In this paper, we analyze Bitcoin, which is a novel digital currency system, where the complete list of transactions is publicly available. Using this dataset, we reconstruct the network of transactions and extract the time and amount of each payment. We analyze the structure of the transaction network by measuring network characteristics over time, such as the degree distribution, degree correlations and clustering. We find that linear preferential attachment drives the growth of the network. We also study the dynamics taking place on the transaction network, i.e. the flow of money. We measure temporal patterns and the wealth accumulation. Investigating the microscopic statistics of money movement, we find that sublinear preferential attachment governs the evolution of the wealth distribution. We report a scaling law between the degree and wealth associated to individual nodes.

Do the Rich Get Richer? An Empirical Analysis of the Bitcoin Transaction Network

PubMed Central

Kondor, Dániel; Pósfai, Márton; Csabai, István; Vattay, Gábor

2014-01-01

The possibility to analyze everyday monetary transactions is limited by the scarcity of available data, as this kind of information is usually considered highly sensitive. Present econophysics models are usually employed on presumed random networks of interacting agents, and only some macroscopic properties (e.g. the resulting wealth distribution) are compared to real-world data. In this paper, we analyze Bitcoin, which is a novel digital currency system, where the complete list of transactions is publicly available. Using this dataset, we reconstruct the network of transactions and extract the time and amount of each payment. We analyze the structure of the transaction network by measuring network characteristics over time, such as the degree distribution, degree correlations and clustering. We find that linear preferential attachment drives the growth of the network. We also study the dynamics taking place on the transaction network, i.e. the flow of money. We measure temporal patterns and the wealth accumulation. Investigating the microscopic statistics of money movement, we find that sublinear preferential attachment governs the evolution of the wealth distribution. We report a scaling law between the degree and wealth associated to individual nodes. PMID:24505257

Identifying Image Manipulation Software from Image Features

DTIC Science & Technology

2015-03-26

obp/ui/#iso:std:iso:ts:22028:-3:ed-2: v1:en. 24. Popescu, Alin and Hany Farid. “Exposing digital forgeries by detecting traces of resampling”. Signal...Processing, IEEE Transactions on, 53(2):758–767, 2005. 25. Popescu, Alin and Hany Farid. “Statistical tools for digital forensics”. Informa- tion

Hardware for Accelerating N-Modular Redundant Systems for High-Reliability Computing

NASA Technical Reports Server (NTRS)

Dobbs, Carl, Sr.

2012-01-01

A hardware unit has been designed that reduces the cost, in terms of performance and power consumption, for implementing N-modular redundancy (NMR) in a multiprocessor device. The innovation monitors transactions to memory, and calculates a form of sumcheck on-the-fly, thereby relieving the processors of calculating the sumcheck in software

31 CFR 515.577 - Authorized transactions necessary and ordinarily incident to publishing.

Code of Federal Regulations, 2012 CFR

2012-07-01

... thereof, including the Central Bank of Cuba; prohibited officials of the Government of Cuba, as defined in § 515.337 of this part; prohibited members of the Cuban Communist Party, as defined in § 515.338 of this... in electronic format, the addition of embedded software necessary for reading, browsing, navigating...

31 CFR 515.577 - Authorized transactions necessary and ordinarily incident to publishing.

Code of Federal Regulations, 2011 CFR

2011-07-01

... thereof, including the Central Bank of Cuba; prohibited officials of the Government of Cuba, as defined in § 515.337 of this part; prohibited members of the Cuban Communist Party, as defined in § 515.338 of this... in electronic format, the addition of embedded software necessary for reading, browsing, navigating...

31 CFR 515.577 - Authorized transactions necessary and ordinarily incident to publishing.

Code of Federal Regulations, 2014 CFR

2014-07-01

... thereof, including the Central Bank of Cuba; prohibited officials of the Government of Cuba, as defined in § 515.337 of this part; prohibited members of the Cuban Communist Party, as defined in § 515.338 of this... in electronic format, the addition of embedded software necessary for reading, browsing, navigating...

31 CFR 515.577 - Authorized transactions necessary and ordinarily incident to publishing.

Code of Federal Regulations, 2013 CFR

2013-07-01

... thereof, including the Central Bank of Cuba; prohibited officials of the Government of Cuba, as defined in § 515.337 of this part; prohibited members of the Cuban Communist Party, as defined in § 515.338 of this... in electronic format, the addition of embedded software necessary for reading, browsing, navigating...

The Role of Interest and Images in Slideware Presentations

ERIC Educational Resources Information Center

Tangen, Jason M.; Constable, Merryn D.; Durrant, Eric; Teeter, Chris; Beston, Brett R.; Kim, Joseph A.

2011-01-01

With the advent of technologies that allow lecturers to develop presentations using software such as Microsoft PowerPoint, Apple Keynote, and OpenOffice Impress (referred to generically here as "slideware"), lectures and meetings are beginning to resemble cinematic experiences rather than the text filled transactions that have been the norm for…

Software handlers for process interfaces

NASA Technical Reports Server (NTRS)

Bercaw, R. W.

1976-01-01

The principles involved in the development of software handlers for custom interfacing problems are discussed. Handlers for the CAMAC standard are examined in detail. The types of transactions that must be supported have been established by standards groups, eliminating conflicting requirements arising out of different design philosophies and applications. Implementation of the standard handlers has been facilititated by standardization of hardware. The necessary local processors can be placed in the handler when it is written or at run time by means of input/output directives, or they can be built into a high-performance input/output processor. The full benefits of these process interfaces will only be realized when software requirements are incorporated uniformly into the hardware.

Transactional sex and sexual harassment between professors and students at an urban university in Benin.

PubMed

Eller, Amanda

2016-07-01

This paper adds to discussion of transactional sex relationships in Africa by examining the distinction between transactional sex and sexual harassment in the context of professor-student relationships and their inherent power dynamics. By exploring the ways in which female university students in urban Benin toe the line between empowered agent and victim, I show how the power differential between professor and student obstructs the professor's ability to objectively determine consent, and examine why, in spite of this differential, male professors are frequently perceived as the victims of these relationships. Ethnographic data were gathered through participant observation on a public university campus in Benin and in-depth interviews and focus groups with 34 students and 5 professors from that university. Findings suggest that the problem of sexual harassment on campus will be difficult to address so long as transactional sex relationships between professors and students are permitted to continue.

An empirical application of transaction-costs theory to organizational design characteristics.

PubMed

Williams, S

2000-01-01

The environmental uncertainty component of transaction-costs theory was used to predict the organizational structural characteristics of size (number of employees) and horizontal differentiation (number of vice presidents) using financial and management information from the COMPACT DISCLOSURE data base (which contains the most recent annual and periodic reports for more than 12,000 public companies). Organizations were categorized as low- or high-uncertainty industries according to Dess and Beard's (1984) Dynamism Scale, and net sales volume was controlled. As predicted, high-uncertainty companies had significantly higher horizontal differentiation than low-uncertainty firms, a finding that supports the transaction-costs expectation that organizations may require more departments or personnel to cope with increasing uncertainty. Surprisingly, low-uncertainty firms were found to have significantly more employees than high-uncertainty organizations, which is the opposite of what transaction-costs theory predicts. Possible explanations for this unexpected finding and further potential limitations are discussed.

The comparison of the effect of Transactional Model-based Teaching and Ordinary Education Curriculum- based Teaching programs on stress management among teachers.

PubMed

Mazloomy Mahmoodabad, Seyed Saeed; Mohammadi, Maryam; Zadeh, Davood Shojaei; Barkhordari, Abolfazl; Hosaini, Fatemeh; Kaveh, Mohammad Hossain; Malehi, Amal Saki; Rahiminegad, Mohammadkazem

2014-04-09

Regarding the effect of teachers' stress on teaching and learning processes, the researchers decided to provide a stress management program based on Transactional Model to solve this teachers' problems. Thus, this study is going to investigate the effect of Transactional Model- based Teaching and the Ordinary Education Curriculum- based Teaching programs on Yazd teachers. The study was a semi- experimental one. The sample population (200 people) was selected using categorized method. The data were collected via PSS Questionnaire and a questionnaire which its validity and reliability had been proved. Eight teaching sessions were hold for 60-90 min. Evaluation was performed in three steps. The data were described and analyzed using SPSS software version 15. Value of P<0.05 was considered as significant. The participants were 200 people of Yazd teachers of primary schools. Mean age of group 1 and 2 was 42.05±5.69 and 41.25±5.89 respectively. Independent T- Test indicated a significant mean score (p=0.000) due to perceived stress of interference groups in post interference step and follow-up one respectively. Results showed a decreasing effect of both programs, but the Transactional Model- based interference indicated to decrease stress more than the other.

Transactional sex amongst young people in rural northern Tanzania: an ethnography of young women's motivations and negotiation

PubMed Central

2010-01-01

Background Material exchange for sex (transactional sex) may be important to sexual relationships and health in certain cultures, yet the motivations for transactional sex, its scale and consequences are still little understood. The aim of this paper is to examine young women's motivations to exchange sex for gifts or money, the way in which they negotiate transactional sex throughout their relationships, and the implications of these negotiations for the HIV epidemic. Method An ethnographic research design was used, with information collected primarily using participant observation and in-depth interviews in a rural community in North Western Tanzania. The qualitative approach was complemented by an innovative assisted self-completion questionnaire. Findings Transactional sex underlay most non-marital relationships and was not, per se, perceived as immoral. However, women's motivations varied, for instance: escaping intense poverty, seeking beauty products or accumulating business capital. There was also strong pressure from peers to engage in transactional sex, in particular to consume like others and avoid ridicule for inadequate remuneration. Macro-level factors shaping transactional sex (e.g. economic, kinship and normative factors) overwhelmingly benefited men, but at a micro-level there were different dimensions of power, stemming from individual attributes and immediate circumstances, some of which benefited women. Young women actively used their sexuality as an economic resource, often entering into relationships primarily for economic gain. Conclusion Transactional sex is likely to increase the risk of HIV by providing a dynamic for partner change, making more affluent, higher risk men more desirable, and creating further barriers to condom use. Behavioural interventions should directly address how embedded transactional sex is in sexual culture. PMID:20429913

The Impact of Communication Mode and Task Complexity on Small Group Performance and Member Satisfaction.

ERIC Educational Resources Information Center

Carey, Jane M.; Kacmar, Charles, J.

1997-01-01

It is often presumed that software technology will increase group productivity, but this may not be the case. Examines the impact of technology on time-to-complete-task, member satisfaction, perceived information load, number of contributing transactions, and task complexity. Three appendices provide examples of complex and simple tasks and the…

The IMS Software Integration Platform

DTIC Science & Technology

1993-04-12

products to incorporate all data shared by the IMS applications. Some entities (time-series, images, a algorithm -specific parameters) must be managed...dbwhoanii, dbcancel Transaction Management: dbcommit, dbrollback Key Counter Assignment: dbgetcounter String Handling: cstr ~to~pad, pad-to- cstr Error...increment *value; String Maniputation: int cstr topad (array, string, arraylength) char *array, *string; int arrayjlength; int pad tocstr (string

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

Katipamula, Srinivas; Gowri, Krishnan; Hernandez, George

This paper describes one such reference process that can be deployed to provide continuous automated conditioned-based maintenance management for buildings that have BIM, a building automation system (BAS) and a computerized maintenance management software (CMMS) systems. The process can be deployed using an open source transactional network platform, VOLTTRON™, designed for distributed sensing and controls and supports both energy efficiency and grid services.

Expert Systems for Libraries at SCIL [Small Computers in Libraries]'88.

ERIC Educational Resources Information Center

Kochtanek, Thomas R.; And Others

1988-01-01

Six brief papers on expert systems for libraries cover (1) a knowledge-based approach to database design; (2) getting started in expert systems; (3) using public domain software to develop a business reference system; (4) a music cataloging inquiry system; (5) linguistic analysis of reference transactions; and (6) a model of a reference librarian.…

Business Simulation Training in Information Technology Education: Guidelines for New Approaches in IT Training

ERIC Educational Resources Information Center

Leger, Pierre-Majorique; Charland, Patrick; Feldstein, Harvey D.; Robert, Jacques; Babin, Gilbert; Lyle, Derick

2011-01-01

Enterprise Resource Planning (ERP) systems are commercial software packages that enable the integration of transactions-oriented data and business processes throughout an organization. Most of the world's largest organizations have already adopted an ERP system, and many mid-size organizations are turning to them as well. The implementation of an…

Information as Property and as a Public Good: Perspectives from the Economic Theory of Property Rights.

ERIC Educational Resources Information Center

McCain, Roger A.

1988-01-01

Reviews the economic theory of property rights and explores four applications of the transaction cost theory of property rights and free distribution in the economics of information: (1) copying technology; (2) computer software and copy protection; (3) satellite television and encryption; and (4) public libraries. (56 references) (MES)

Special Features of the Advanced Loans Module of the ABCD Integrated Library System

ERIC Educational Resources Information Center

de Smet, Egbert

2011-01-01

Purpose: The "advanced loans" module of the relatively new library software, ABCD, is an addition to the normal loans module and it offers a "generic transaction decision-making engine" functionality. The module requires extra installation effort and parameterisation, so this article aims to explain to the many potentially interested libraries,…

Maternal Depressive Symptomatology and Child Behavior: Transactional Relationship with Simultaneous Bidirectional Coupling

PubMed Central

Nicholson, Jody S.; Deboeck, Pascal; Farris, Jaelyn R.; Boker, Steven M.; Borkowski, John G.

2011-01-01

The present study investigated reciprocal relationships between adolescent mothers and their children’s well-being through an analysis of the coupling relationship of mothers’ depressive symptomatology and children’s internalizing and externalizing behaviors. Unlike studies using discrete time analyses, the present study used dynamical systems to model time continuously, which allowed for the study of dynamic, transactional effects between members of each dyad. Findings provided evidence of coupling between maternal depressive symptoms and children’s behaviors. The most robust finding was that as maternal depressive symptoms became more or less severe, children’s behavior problems increased or decreased in a reciprocal manner. Results from this study extended upon theoretical contributions of authors such as Richters (1997) and Granic and Hollenstein (2003), providing empirical validation from a longitudinal study for understanding the ongoing, dynamic relationships between at-risk mothers and their children. PMID:21639624

Pre Service Teachers' Usage of Dynamic Mathematics Software

ERIC Educational Resources Information Center

Bulut, Mehmet; Bulut, Neslihan

2011-01-01

Aim of this study is about mathematics education and dynamic mathematics software. Dynamic mathematics software provides new opportunities for using both computer algebra system and dynamic geometry software. GeoGebra selected as dynamic mathematics software in this research. In this study, it is investigated that what is the usage of pre service…

Distributed Energy Systems Integration and Demand Optimization for Autonomous Operations and Electric Grid Transactions

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

Ghatikar, Girish; Mashayekh, Salman; Stadler, Michael

Distributed power systems in the U.S. and globally are evolving to provide reliable and clean energy to consumers. In California, existing regulations require significant increases in renewable generation, as well as identification of customer-side distributed energy resources (DER) controls, communication technologies, and standards for interconnection with the electric grid systems. As DER deployment expands, customer-side DER control and optimization will be critical for system flexibility and demand response (DR) participation, which improves the economic viability of DER systems. Current DER systems integration and communication challenges include leveraging the existing DER and DR technology and systems infrastructure, and enabling optimized cost,more » energy and carbon choices for customers to deploy interoperable grid transactions and renewable energy systems at scale. Our paper presents a cost-effective solution to these challenges by exploring communication technologies and information models for DER system integration and interoperability. This system uses open standards and optimization models for resource planning based on dynamic-pricing notifications and autonomous operations within various domains of the smart grid energy system. It identifies architectures and customer engagement strategies in dynamic DR pricing transactions to generate feedback information models for load flexibility, load profiles, and participation schedules. The models are tested at a real site in California—Fort Hunter Liggett (FHL). Furthermore, our results for FHL show that the model fits within the existing and new DR business models and networked systems for transactive energy concepts. Integrated energy systems, communication networks, and modeling tools that coordinate supply-side networks and DER will enable electric grid system operators to use DER for grid transactions in an integrated system.« less

Single stock dynamics on high-frequency data: from a compressed coding perspective.

PubMed

Fushing, Hsieh; Chen, Shu-Chun; Hwang, Chii-Ruey

2014-01-01

High-frequency return, trading volume and transaction number are digitally coded via a nonparametric computing algorithm, called hierarchical factor segmentation (HFS), and then are coupled together to reveal a single stock dynamics without global state-space structural assumptions. The base-8 digital coding sequence, which is capable of revealing contrasting aggregation against sparsity of extreme events, is further compressed into a shortened sequence of state transitions. This compressed digital code sequence vividly demonstrates that the aggregation of large absolute returns is the primary driving force for stimulating both the aggregations of large trading volumes and transaction numbers. The state of system-wise synchrony is manifested with very frequent recurrence in the stock dynamics. And this data-driven dynamic mechanism is seen to correspondingly vary as the global market transiting in and out of contraction-expansion cycles. These results not only elaborate the stock dynamics of interest to a fuller extent, but also contradict some classical theories in finance. Overall this version of stock dynamics is potentially more coherent and realistic, especially when the current financial market is increasingly powered by high-frequency trading via computer algorithms, rather than by individual investors.

Single Stock Dynamics on High-Frequency Data: From a Compressed Coding Perspective

PubMed Central

Fushing, Hsieh; Chen, Shu-Chun; Hwang, Chii-Ruey

2014-01-01

High-frequency return, trading volume and transaction number are digitally coded via a nonparametric computing algorithm, called hierarchical factor segmentation (HFS), and then are coupled together to reveal a single stock dynamics without global state-space structural assumptions. The base-8 digital coding sequence, which is capable of revealing contrasting aggregation against sparsity of extreme events, is further compressed into a shortened sequence of state transitions. This compressed digital code sequence vividly demonstrates that the aggregation of large absolute returns is the primary driving force for stimulating both the aggregations of large trading volumes and transaction numbers. The state of system-wise synchrony is manifested with very frequent recurrence in the stock dynamics. And this data-driven dynamic mechanism is seen to correspondingly vary as the global market transiting in and out of contraction-expansion cycles. These results not only elaborate the stock dynamics of interest to a fuller extent, but also contradict some classical theories in finance. Overall this version of stock dynamics is potentially more coherent and realistic, especially when the current financial market is increasingly powered by high-frequency trading via computer algorithms, rather than by individual investors. PMID:24586235

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

Akyol, Bora A.; Allwardt, Craig H.; Beech, Zachary W.

VOLTTRON is a flexible, reliable, and scalable platform for distributed control and sensing. VOLTTRON serves in four primary roles: •A reference platform for researchers to quickly develop control applications for transactive energy. •A reference platform with flexible data store support for energy analytics applications either in academia or in commercial enterprise. •A platform from which commercial enterprise can develop products without license issues and easily integrate into their product line. •An accelerator to drive industry adoption of transactive energy and advanced building energy analytics. Pacific Northwest National Laboratory, with funding from the U.S. Department of Energy’s Building Technologies Office, developedmore » and maintains VOLTTRON as an open-source community project. VOLTTRON source code includes agent execution software; agents that perform critical services that enable and enhance VOLTTRON functionality; and numerous agents that utilize the platform to perform a specific function (fault detection, demand response, etc.). The platform supports energy, operational, and financial transactions between networked entities (equipment, organizations, buildings, grid, etc.) and enhance the control infrastructure of existing buildings through the use of open-source device communication, control protocols, and integrated analytics.« less

Automating Security Protocol Analysis

DTIC Science & Technology

2004-03-01

language that allows easy representation of pattern interaction. Using CSP, Lowe tests whether a protocol achieves authentication. In the case of...only to correctly code whatever protocol they intend to evaluate. The tool, OCaml 3.04 [1], translates the protocol into Horn clauses and then...model protocol transactions. One example of automated modeling software is Maude [19]. Maude was the intended language for this research, but Java

15 CFR Supplement No. 1 to Part 730 - Information Collection Requirements Under the Paperwork Reduction Act: OMB Control Numbers

Code of Federal Regulations, 2011 CFR

2011-01-01

... Triangular Transactions Involving Commodities Covered by a U.S. Import Certificate § 748.10(e). 0694-0012... Delivery Verification Certificate §§ 748.13 and 762.2(b). 0694-0017 International Import Certificate § 748... Assurance Requirement of License Exception TSR (Technology and Software Under Restriction) §§ 740.3(d) and...

The StarLite Project Prototyping Real-Time Software

DTIC Science & Technology

1991-10-01

multiversion data objects using the prototyping environment. Section 5 concludes the paper. 2. Message-Based Simulation When prototyping distributed...phase locking and priority-based synchronization algorithms, and between a multiversion database and its corresponding single-version database, through...its deadline, since the transaction is only aborted in the validation phase. 4.5. A Multiversion Database System To illustrate the effctivcness of the

The Effect of Social Network Diagrams on a Virtual Network of Practice: A Korean Case

ERIC Educational Resources Information Center

Jo, Il-Hyun

2009-01-01

This study investigates the effect of the presentation of social network diagrams on virtual team members' interaction behavior via e-mail. E-mail transaction data from 22 software developers in a Korean IT company was analyzed and depicted as diagrams by social network analysis (SNA), and presented to the members as an intervention. Results…

Language Abstractions for Software-Defined Networks

DTIC Science & Technology

2012-01-01

Academy Christopher Monsanto Princeton University Mark Reitblatt Cornell University Jennifer Rexford Princeton University Alec Story Cornell...Transactions on Networking, 17(4), August 2009. [3] Nate Foster, Rob Harrison, Michael J. Freedman, Christopher Monsanto , Jennifer Rexford, Alec Story...networks. SIGCOMM CCR, 38(2):69–74, 2008. [7] Christopher Monsanto , Nate Foster, Rob Harrison, and David Walker. A compiler and run-time system for

'Something for something': the importance of talking about transactional sex with youth in South Africa using a resilience-based approach.

PubMed

van der Heijden, Ingrid; Swartz, Sharlene

2014-01-01

Transactional sex is a common feature of sexual relationships in South Africa but has severe health implications for those who engage in it. This paper presents perspectives on transactional sex based on interviews and focus group discussions with young people in Gauteng and Limpopo, South Africa. The discussions were part of an evaluation of a peer education programme promoting HIV prevention called Vhutshilo, aimed at 14-16 year olds. The session on transactional sex entitled 'Something for Something' evoked strong responses from youth. Youth recognised transactional sex as a common phenomenon in their communities and associated it with many risks. However, when comparing young people's qualitative responses to the impact of the session as measured by the quantitative impact survey, no significant differences were discernible between youth in the programme and those in a control group who were not exposed to the session. Further analysis showed that the content of the session was limited to the negative consequences and health risks of transactional sex and focused mostly on the adverse contexts in South Africa that force youth into such relationships. The session did little to situate transactional relationships within the everyday realities of sexual decision making and youth values of peer status and consumerism. We argue that the session's findings reveal a narrow understanding of the dynamic contexts under which transactional sex occurs and fails to take into account the resilience of youth to make choices of whether or not to engage in such relationships, and how they can engage in these types of relationships safely. We conclude that HIV prevention curriculums need to leverage youth resilience and protective skills within the confines of difficult economic and social circumstances to allow them to successfully navigate safer sexual relationships.

NAVAIR Information Technology Case Study

DTIC Science & Technology

2010-09-01

straightforward procedure in which an authorized government credit card buyer can make the purchase. Since this price category covers a wide range of items...that employs approximately 35,000 people, with products such as iPod (portable music player), MAC computer, iTunes (music program), and MAC OS...for approval. After approval, the software can be purchased with a company credit card . To complete the transaction, a reimbursement is submitted

The Starlite Project - Prototyping Real-Time Software.

DTIC Science & Technology

1992-11-01

by ONR under contract ledge of transactions and a temporal data model. A N00014-91-J-l 102, by DOE, and by NOSC. multiversion data object is one...environment. Section 4 presents experimentations of priority-based synchronization algorithms and multiversion data objects using the prototyping environment...priority-based .yn- chronization algorithms and between a multiversion database and its corresponding single- version database, through the sensitivity

Modeling SMAP Spacecraft Attitude Control Estimation Error Using Signal Generation Model

NASA Technical Reports Server (NTRS)

Rizvi, Farheen

2016-01-01

Two ground simulation software are used to model the SMAP spacecraft dynamics. The CAST software uses a higher fidelity model than the ADAMS software. The ADAMS software models the spacecraft plant, controller and actuator models, and assumes a perfect sensor and estimator model. In this simulation study, the spacecraft dynamics results from the ADAMS software are used as CAST software is unavailable. The main source of spacecraft dynamics error in the higher fidelity CAST software is due to the estimation error. A signal generation model is developed to capture the effect of this estimation error in the overall spacecraft dynamics. Then, this signal generation model is included in the ADAMS software spacecraft dynamics estimate such that the results are similar to CAST. This signal generation model has similar characteristics mean, variance and power spectral density as the true CAST estimation error. In this way, ADAMS software can still be used while capturing the higher fidelity spacecraft dynamics modeling from CAST software.

Transactional sex and HIV: understanding the gendered structural drivers of HIV in fishing communities in Southern Malawi

PubMed Central

MacPherson, Eleanor E; Sadalaki, John; Njoloma, Macdonald; Nyongopa, Victoria; Nkhwazi, Lawrence; Mwapasa, Victor; Lalloo, David G; Desmond, Nicola; Seeley, Janet; Theobald, Sally

2012-01-01

Background In Southern Malawi, the fishing industry is highly gendered, with men carrying out the fishing and women processing, drying and selling the fish. Research has shown that individuals living in fishing communities in low-income countries are particularly vulnerable to HIV infection. One of the key drivers of HIV in fishing communities is transactional sex. In the fishing industry this takes the form of “fish-for-sex” networks where female fish traders exchange sex with fishermen for access to or more favourable prices of fish. By controlling the means of production, the power dynamics in these exchanges favour men and can make it more difficult for women to negotiate safe sex. Methods Qualitative methods were used to collect data on gendered drivers of transactional sex in the fishing community and how different groups perceive HIV risk in these transactions. Observation, focus group discussions and semi-structured interviews were undertaken with members of the fishing communities, including men and women directly and indirectly involved in fishing. Results In fishing communities transactional sex was prevalent across a spectrum ranging from gift giving within relationships, to sex for fish exchanges, to sex worker encounters. Power differences between couples in transactional sexual encounters shape individual’s abilities to negotiate condom use (with women being at a particularly disadvantaged negotiating position). The context and motivations for transactional sex varied and was mediated by economic need and social position both of men and women. Female fish traders new to the industry and boat crew members who travelled for work and experienced difficult living conditions often engaged in transactional sex. Conclusions Transactional sex is common in Malawian fishing communities, with women particularly vulnerable in negotiations because of existing gendered power structures. Although knowledge and understanding of the HIV risk associated with transactional sex was common, this did not appear to result in the adoption of risk reduction strategies. This suggests that specially targeted strategies to increase women’s economic empowerment and tackle the structural drivers of women’s HIV risk could be important in fishing communities. PMID:22713352

Dynamic Adaptation in Child-Adult Language Interaction

ERIC Educational Resources Information Center

van Dijk, Marijn; van Geert, Paul; Korecky-Kröll, Katharina; Maillochon, Isabelle; Laaha, Sabine; Dressler, Wolfgang U.; Bassano, Dominique

2013-01-01

When speaking to young children, adults adapt their language to that of the child. In this article, we suggest that this child-directed speech (CDS) is the result of a transactional process of dynamic adaptation between the child and the adult. The study compares developmental trajectories of three children to those of the CDS of their caregivers.…

Dynamics of Identity Development and Separation-Individuation in Parent-Child Relationships during Adolescence and Emerging Adulthood--A Conceptual Integration

ERIC Educational Resources Information Center

Koepke, Sabrina; Denissen, Jaap J. A.

2012-01-01

Identity development and separation-individuation in parent-child relationships are widely perceived as related tasks of psychosocial maturation. However, a dynamic, developmental perspective that explains how intra-personal change in identity evolves from transactions between parents and children is not sufficiently represented in the literature.…

ATIP Report: Cyber Security Research in China

DTIC Science & Technology

2015-06-05

vulnerabilities. ATIP Document ID: 150605AR CYBER SECURITY RESEARCH IN CHINA 17 Le GUAN et al. at SKLOIS of IIE, CAS proposed a solution named “ Mimosa ...that protects RSA private keys against the above software-based and physical memory attacks. When the Mimosa service is in idle, private keys are...encrypted and reside in memory as ciphertext. During the cryptographic computing, Mimosa uses hardware transactional memory (HTM) to ensure that (a

Bank Record Processing

NASA Technical Reports Server (NTRS)

1982-01-01

Barnett Banks of Florida, Inc. operates 150 banking offices in 80 Florida cities. Banking offices have computerized systems for processing deposits or withdrawals in checking/savings accounts, and for handling commercial and installment loan transactions. In developing a network engineering design for the terminals used in record processing, an affiliate, Barnett Computing Company, used COSMIC's STATCOM program. This program provided a reliable network design tool and avoided the cost of developing new software.

YIP Formal Synthesis of Software-Based Control Protocols for Fractionated,Composable Autonomous Systems

DTIC Science & Technology

2016-07-08

Systems Using Automata Theory and Barrier Certifi- cates We developed a sound but incomplete method for the computational verification of specifications...method merges ideas from automata -based model checking with those from control theory including so-called barrier certificates and optimization-based... Automata theory meets barrier certificates: Temporal logic verification of nonlinear systems,” IEEE Transactions on Automatic Control, 2015. [J2] R

Multilingual Speech and Language Processing

DTIC Science & Technology

2003-04-01

client software handles the user end of the transaction. Historically, four clients were provided: e-mail, web, FrameMaker , and command line. By...command-line client and an API. The API allows integration of CyberTrans into a number of processes including word processing packages ( FrameMaker ...preservation and logging, and others. The available clients remain e-mail, Web and FrameMaker . Platforms include both Unix and PC for clients, with

COED Transactions, Vol. IX, No. 10 & No. 11, October/November 1977. Teaching Professional Use of the Computer While Teaching the Major. Computer Applications in Design Instruction.

ERIC Educational Resources Information Center

Marcovitz, Alan B., Ed.

Presented are two papers on computer applications in engineering education coursework. The first paper suggests that since most engineering graduates use only "canned programs" and rarely write their own programs, educational emphasis should include model building and the use of existing software as well as program writing. The second paper deals…

ACM TOMS replicated computational results initiative

DOE PAGES

Heroux, Michael Allen

2015-06-03

In this study, the scientific community relies on the peer review process for assuring the quality of published material, the goal of which is to build a body of work we can trust. Computational journals such as The ACM Transactions on Mathematical Software (TOMS) use this process for rigorously promoting the clarity and completeness of content, and citation of prior work. At the same time, it is unusual to independently confirm computational results.

Lysophosphatidylcholine up-regulates human endothelial nitric oxide synthase gene transactivity by c-Jun N-terminal kinase signalling pathway

PubMed Central

Xing, Feiyue; Liu, Jing; Mo, Yongyan; Liu, Zhifeng; Qin, Qinghe; Wang, Jingzhen; Fan, Zhenhua; Long, Yutian; Liu, Na; Zhao, Kesen; Jiang, Yong

2009-01-01

Human endothelial nitric oxide synthase (eNOS) plays a pivotal role in maintaining blood pressure homeostasis and vascular integrity. It has recently been reported that mitogen-activated protein kinases (MAPKs) are intimately implicated in expression of eNOS. However detailed mechanism mediated by them remains to be clarified. In this study, eNOS gene transactivity in human umbilical vein endothelial cells was up-regulated by stimulation of lysophosphatidylcholine (LPC). The stimulation of LPC highly activated both extracellular signal-regulated kinase 1/2 (ERK1/2) and c-Jun N-terminal kinase (JNK), with differences in the dynamic processes of activation between them. Unexpectedly, p38 MAPK could not be activated by the stimulation of LPC. The activation of JNK signalling pathway by overexpression of JNK or its upstream kinase active mutant up-regulated the transactivity of eNOS significantly, but the activation of p38 signalling pathway down-regulated it largely. The inhibition of either ERK1/2 or JNK signalling pathway by kinase-selective inhibitors could markedly block the induction of the transactivity by LPC. It was observed by electrophoretic mobility shift assay that LPC stimulated both SP1 and AP1 DNA binding activity to go up. Additionally using decoy oligonucleotides proved that SP1 was necessary for maintaining the basal or stimulated transactivity, whereas AP1 contributed mainly to the increase of the stimulated transactivity. These findings indicate that the up-regulation of the eNOS gene transactivity by LPC involves the enhancement of SP1 transcription factor by the activation of JNK and ERK1/2 signalling pathways and AP1 transcription factor by the activation of JNK signalling pathway. PMID:18624763

Computerized controlled-substance surveillance: application involving automated storage and distribution cabinets.

PubMed

Wellman, G S; Hammond, R L; Talmage, R

2001-10-01

A secondary data-reporting system used to scan the archives of a hospital's automated storage and distribution cabinets (ASDCs) for indications of controlled-substance diversion is described. ASDCs, which allow access to multiple doses of the same medication at one time, use drug count verification to ensure complete audits and disposition tracking. Because an ASDC may interpret inappropriate removal of a medication as a normal transaction, users of ASDCs should have a comprehensive plan for detecting and investigating controlled-substance diversion. Monitoring for and detecting diversion can be difficult and time-consuming, given the limited report-generating features of many ASDCs. Managers at an 800-bed hospital used report-writing software to address these problems. This application interfaces with the hospital's computer system and generates customized reports. The monthly activity recapitulation report lists each user of the ASDCs and gives a summary of all the controlled-substance transactions for those users for the time period specified. The monthly summary report provides the backbone of the surveillance system and identifies situations that require further audit and review. This report provides a summary of each user's activity for a specific medication for the time period specified. The detailed summary report allows for efficient review of specific transactions before there is a decision to conduct a chart review. This report identifies all ASDC controlled-substance transactions associated with a user. A computerized report-generating system identifies instances of inappropriate removal of controlled substances from a hospital's ASDCs.

Parallel Fortran-MPI software for numerical inversion of the Laplace transform and its application to oscillatory water levels in groundwater environments

USGS Publications Warehouse

Zhan, X.

2005-01-01

A parallel Fortran-MPI (Message Passing Interface) software for numerical inversion of the Laplace transform based on a Fourier series method is developed to meet the need of solving intensive computational problems involving oscillatory water level's response to hydraulic tests in a groundwater environment. The software is a parallel version of ACM (The Association for Computing Machinery) Transactions on Mathematical Software (TOMS) Algorithm 796. Running 38 test examples indicated that implementation of MPI techniques with distributed memory architecture speedups the processing and improves the efficiency. Applications to oscillatory water levels in a well during aquifer tests are presented to illustrate how this package can be applied to solve complicated environmental problems involved in differential and integral equations. The package is free and is easy to use for people with little or no previous experience in using MPI but who wish to get off to a quick start in parallel computing. ?? 2004 Elsevier Ltd. All rights reserved.

A dynamic simulation model for analyzing the importance of forest resources in Alaska.

Treesearch

Wilbur R. Maki; Douglas Olson; Con H. Schallau

1985-01-01

A dynamic simulation model has been adapted for use in Alaska. It provides a flexible tool for examining the economic consequences of alternative forest resource management policies. The model could be adapted for use elsewhere if an interindustry transaction table is available or can be developed. To demonstrate the model's usefulness, the contribution of the...

Software-Engineering Process Simulation (SEPS) model

NASA Technical Reports Server (NTRS)

Lin, C. Y.; Abdel-Hamid, T.; Sherif, J. S.

1992-01-01

The Software Engineering Process Simulation (SEPS) model is described which was developed at JPL. SEPS is a dynamic simulation model of the software project development process. It uses the feedback principles of system dynamics to simulate the dynamic interactions among various software life cycle development activities and management decision making processes. The model is designed to be a planning tool to examine tradeoffs of cost, schedule, and functionality, and to test the implications of different managerial policies on a project's outcome. Furthermore, SEPS will enable software managers to gain a better understanding of the dynamics of software project development and perform postmodern assessments.

Cost analysis of an electricity supply chain using modification of price based dynamic economic dispatch in wheeling transaction scheme

NASA Astrophysics Data System (ADS)

Wahyuda; Santosa, Budi; Rusdiansyah, Ahmad

2018-04-01

Deregulation of the electricity market requires coordination between parties to synchronize the optimization on the production side (power station) and the transport side (transmission). Electricity supply chain presented in this article is designed to facilitate the coordination between the parties. Generally, the production side is optimized with price based dynamic economic dispatch (PBDED) model, while the transmission side is optimized with Multi-echelon distribution model. Both sides optimization are done separately. This article proposes a joint model of PBDED and multi-echelon distribution for the combined optimization of production and transmission. This combined optimization is important because changes in electricity demand on the customer side will cause changes to the production side that automatically also alter the transmission path. The transmission will cause two cost components. First, the cost of losses. Second, the cost of using the transmission network (wheeling transaction). Costs due to losses are calculated based on ohmic losses, while the cost of using transmission lines using the MW - mile method. As a result, this method is able to provide best allocation analysis for electrical transactions, as well as emission levels in power generation and cost analysis. As for the calculation of transmission costs, the Reverse MW-mile method produces a cheaper cost than the Absolute MW-mile method

Transactional processes in child disruptive behavior and maternal depression: A longitudinal study from early childhood to adolescence

PubMed Central

GROSS, HEATHER E.; SHAW, DANIEL S.; BURWELL, REBECCA A.; NAGIN, DANIEL S.

2009-01-01

Although much has been written about the utility of applying Sameroff and Chandler's transactional perspective to the study of child psychopathology, relatively few researchers have used such an approach to trace the emergence of child problem behavior from infancy to adolescence. Using a sample of 289 male toddlers from predominantly low-income families, the current study examined associations between various forms of early child disruptive behavior, subsequent trajectories of maternal depressive symptoms over the course of 8 years, and adolescent problem behavior. Results indicated that early child noncompliance was the most robust predictor of more chronic and elevated trajectories of maternal depression, which in turn discriminated teacher and youth reports of adolescent antisocial behavior but not internalizing symptoms. The findings were consistent with transactional perspectives of developmental psychopathology that have emphasized the dynamic interplay between child and parent characteristics. PMID:19144227

Valuation of Transactive Systems

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

Hammerstrom, Donald J.; Corbin, Charles D.; Fernandez, Nicholas

2016-05-12

This is a final report from a project funded by the U.S. Department of Energy to formulate and test a methodology for valuation of systems where transaction-based mechanisms coordinate the exchange of value between the system’s actors. Today, the principal commodity being exchanged is electrical energy, and such mechanisms are called transactive energy systems. The authors strove to lay a foundation for meaningful valuations of transactive systems in general, and transactive energy systems as a special case. The word valuation is used in many different ways. This report proposes a valuation methodology that is inclusive of many types of valuations.more » Many will be familiar with cost-benefit valuations, in which both costs and benefits are assessed to determine whether the assets are worth their cost. Another set of valuation methods attempt to optimize an outcome using available resources, as is the case with integrated resource planning. In the end, this report’s methodology was most influenced by and most resembles the integrated-resource-planning approach. Regardless, we wish to enforce the premise that all valuations are comparative and should clearly specify a baseline scenario. A long, annotated list of prior valuation studies and valuation methodologies that influenced this report has been appended to this report. Much research is being conducted today concerning transactive systems, but only a handful of transactive system mechanisms have been formulated and field tested. They are found to be quite diverse, and the documentation of the various mechanisms is uneven in breadth and quality. It is therefore not adequate to simply assert that a valuation scenario includes a transactive system; certain characteristics and qualities of the chosen transactive system mechanism must be defined and stated. The report lists and discusses most of the known transactive system mechanisms. It offers a set of questions that may be used to help specify important characteristics of the transactive system mechanisms, which should be conveyed along with other valuation results. A valuation methodology is proposed. Some abstraction is necessarily retained so that the methodology may be applied for the many purposes of today’s valuations and across grid, building, societal, and other domains. The report’s methodology advocates separation of operational timescales from long-term growth timescales. Operational models are defined as the models that inform impacts within the relatively short, often yearlong, operational time periods. Growth models define how the scenarios evolve from one operational period to the next (e.g., from year to year). We believe the recommended methodology is a critical step toward collaborative community platforms, where analysts and decision makers alike could contribute and borrow content within their expertise. The report then asks, what is unique about valuations when systems become coordinated by transactive systems? In answer, accurate valuations of transactive systems require careful adherence to the dynamic interaction between a system’s responsive elements and the system’s operational objectives. In every transactive system mechanism, elements respond to incentives that become revealed to them, and certain operational objectives become explicitly incentivized by the transactive system mechanism. The transactive system mechanisms define the important coupling between the responsive elements and the system’s objectives.« less

Planning for advanced EDI operations in materiel management--a case study.

PubMed

Hanon, C

1994-01-01

Florida Hospital, a 1,462-bed organization in five locations in the central Florida area, wanted to implement an EDI system that would take redundancies, paper and FTEs out of their system. They hired a consultant to educate them about EDI and help them put together an EDI business plan. They decided to implement three initial transaction sets for a price catalog, purchase orders, and PO acknowledgments. Requesting departments will be able to order routine items directly from vendors via EDI. Future transaction sets will include advance ship notice with price (857) that will generate a receipt off of which the hospital will pay, and electronic funds transfer. Translation and communication software for their mainframe system was chosen to accommodate both the most and least electronically sophisticated trading partners, and negotiations/education on doing business with the hospital via EDI are ongoing.

The "Darknet": The new street for street drugs.

PubMed

Pergolizzi, J V; LeQuang, J A; Taylor, R; Raffa, R B

2017-12-01

The "Darknet" ("dark web") has emerged as a means by which illegal drug buys and deliveries can be arranged with apparent anonymity and impunity. Healthcare providers should be aware of this growing source of illicit drugs. The "Darknet" refers to networks isolated from the Internet that cannot be accessed via conventional search engines. They require special software that is protected by special encryption. The initial legitimate use of a "Darknet" to conceal personal information against misuse or political reprisal is being exploited to conceal the identity of buyers and sellers in illegal drug transactions. Instructions on how to obtain access to the "Darknet" are readily available on conventional Internet web pages. The "Darknet" has changed the paradigm of illegal drug importation and distribution by providing a difficult-to-trace transaction, and delivery via legitimate couriers directly to the home. © 2017 John Wiley & Sons Ltd.

Software Design Document MCC CSCI (1). Volume 2, Sections 2.18.1 - 2.22

DTIC Science & Technology

1991-06-01

tparam pointer to long mnt +Standard C type. _____________________ Internal Variables _____________ Variable Type Where Typedef Declared td ...ist points to the last transaction pointer on the TimeList. The function call is AssocAddToStart~ffimieList( td , startTimeList, endTimeList). Table 2.20...42 describes the parameters used by this function. Parameters Parameter Type______ Where Typedef Declared td pointer to /simnetllibsrc/libassoc/assoc

Man-Machine Interface (MMI) Requirements Definition and Design Guidelines

DTIC Science & Technology

1981-02-01

be provided to interrogate the user to resolve any input ambiguities resulting from hardware limitations; see Smith and Goodwin, 1971 . Reference...Smith, S. L. and Goodwin, N. C’. Alphabetic data v entry via the Touch-Tone pad: A comment. Human Factors, 1971 , 13(2), 189-190. 41 All~ 1.0 General (con...software designer. Reference: Miller, R. B. Response time in man-computer conversational transactions. In Proceedings of the AFIPS kall Joint Computer

Sirocco Storage Server v. pre-alpha 0.1

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

Curry, Matthew L.; Danielson, Geoffrey; Ward, H. Lee

Sirocco is a parallel storage system under development, designed for write-intensive workloads on large-scale HPC platforms. It implements a keyvalue object store on top of a set of loosely federated storage servers that cooperate to ensure data integrity and performance. It includes support for a range of different types of storage transactions. This software release constitutes a conformant storage server, along with the client-side libraries to access the storage over a network.

Transactional sex among young women in rural South Africa: prevalence, mediators and association with HIV infection

PubMed Central

Ranganathan, Meghna; Heise, Lori; Pettifor, Audrey; Silverwood, Richard J; Selin, Amanda; MacPhail, Catherine; Delany-Moretlwe, Sinead; Kahn, Kathleen; Gómez-Olivé, F Xavier; Hughes, James P; Piwowar-Manning, Estelle; Laeyendecker, Oliver; Watts, Charlotte

2016-01-01

Introduction Young adolescent women in sub-Saharan Africa are three to four times more likely to be HIV-positive than boys or men. One of the relationship dynamics that is likely to be associated with young women's increased vulnerability to HIV is transactional sex. There are a range of HIV-related risk behaviours that may drive this vulnerability. However, to date, limited epidemiological data exist on the role of transactional sex in increasing HIV acquisition, especially among young women in sub-Saharan Africa. Our paper presents data on the prevalence of self-reported engagement in transactional sex and explores whether transactional sex is associated with increased risk of HIV infection among a cohort of young, rural, sexually active South African women. We also explore whether this relationship is mediated through certain HIV-related risk behaviours. Methods We analyzed baseline data from a phase III trial of conditional cash transfers for HIV prevention of 693 sexually active, school-going young women aged 13–20 years in rural South Africa. We examined the association between young women's engagement in transactional sex and HIV infection. Transactional sex is defined as a non-commercial, non-marital sexual relationship whereby sex is exchanged for money and/or gifts. We explored whether this relationship is mediated by certain HIV-related risk behaviours. We used logistic and multinomial regression and report unadjusted and adjusted odds ratios with 95% CI. Results Overall, 14% (n=97) of sexually active young women reported engaging in transactional sex. Engagement in transactional sex was associated with an increased risk of being HIV-positive (aOR: 2.5, CI: 95% 1.19–5.25, p=0.01). The effect size of this association remained nearly unchanged when adjusted for certain other dimensions of HIV risk that might help explain the underlying pathways for this relationship. Conclusions This study provides quantitative support demonstrating that transactional sex is associated with HIV infection in young women. Even though the specific variables tested do not mediate the relationship, a potential explanation for this association may be that the men with whom young women are having sex belong to networks of sexually connected individuals who are at a “high risk” for HIV infection. The results highlight the importance of structural intervention approaches that can alter the context of young women's HIV risk. PMID:27469061

Transactional sex among young women in rural South Africa: prevalence, mediators and association with HIV infection.

PubMed

Ranganathan, Meghna; Heise, Lori; Pettifor, Audrey; Silverwood, Richard J; Selin, Amanda; MacPhail, Catherine; Delany-Moretlwe, Sinead; Kahn, Kathleen; Gómez-Olivé, F Xavier; Hughes, James P; Piwowar-Manning, Estelle; Laeyendecker, Oliver; Watts, Charlotte

2016-01-01

Young adolescent women in sub-Saharan Africa are three to four times more likely to be HIV-positive than boys or men. One of the relationship dynamics that is likely to be associated with young women's increased vulnerability to HIV is transactional sex. There are a range of HIV-related risk behaviours that may drive this vulnerability. However, to date, limited epidemiological data exist on the role of transactional sex in increasing HIV acquisition, especially among young women in sub-Saharan Africa. Our paper presents data on the prevalence of self-reported engagement in transactional sex and explores whether transactional sex is associated with increased risk of HIV infection among a cohort of young, rural, sexually active South African women. We also explore whether this relationship is mediated through certain HIV-related risk behaviours. We analyzed baseline data from a phase III trial of conditional cash transfers for HIV prevention of 693 sexually active, school-going young women aged 13-20 years in rural South Africa. We examined the association between young women's engagement in transactional sex and HIV infection. Transactional sex is defined as a non-commercial, non-marital sexual relationship whereby sex is exchanged for money and/or gifts. We explored whether this relationship is mediated by certain HIV-related risk behaviours. We used logistic and multinomial regression and report unadjusted and adjusted odds ratios with 95% CI. Overall, 14% (n=97) of sexually active young women reported engaging in transactional sex. Engagement in transactional sex was associated with an increased risk of being HIV-positive (aOR: 2.5, CI: 95% 1.19-5.25, p=0.01). The effect size of this association remained nearly unchanged when adjusted for certain other dimensions of HIV risk that might help explain the underlying pathways for this relationship. This study provides quantitative support demonstrating that transactional sex is associated with HIV infection in young women. Even though the specific variables tested do not mediate the relationship, a potential explanation for this association may be that the men with whom young women are having sex belong to networks of sexually connected individuals who are at a "high risk" for HIV infection. The results highlight the importance of structural intervention approaches that can alter the context of young women's HIV risk.

Fractal patterns in Stock Intertrading Times

NASA Astrophysics Data System (ADS)

White, Ainslie; Lee, Youngki; Ivanov, Plamen Ch.

2003-03-01

We study intertrades times (ITT) of stock trades of a range of companies included in the New York Stock Exchange's Trades and Quotes (TAQ) database. The time between transactions is an indicator of the dynamics of the market, and in the field of econometrics, intertrade durations play a key role in the understanding of the market activity and microstructure. Previous work has mainly focused on the properties of price changes of individual company stocks as well as global financial indices (e.g. SP500, DJ etc.). We hypothesize that there is a relation between the dynamics of price change and the trading activity. To investigate this relation we first study the statistical features of ITT data. The TAQ database covers all transactions on the NSE, AMEX, NASDAQ and the US regional exchanges. We have performed a preliminary analysis of 100 company stocks from a range of industries of the US economy selecting predominantly those companies which have large market capitalisations (MC). We focus on companies with large MC, since the dynamics of the price change and trading activity of stocks of such companies has a considerable impact on the market behaviour.

COED Transactions, Vol. XI, No. 3, March 1979. LSSP: An Educational Aid to the Study of Linear System Dynamics.

ERIC Educational Resources Information Center

Mitchell, Eugene E., Ed.

The study of the dynamics of physical systems is of importance to all engineering students. LSSP, a Linear System Simulation Program, is used to study the behavior of physical phenomena and systems which may be represented to a good degree of approximation by linear models. Emphasis is placed upon the unity resulting from the mathematical…

SARS: Safeguards Accounting and Reporting Software

NASA Astrophysics Data System (ADS)

Mohammedi, B.; Saadi, S.; Ait-Mohamed, S.

In order to satisfy the requirements of the SSAC (State System for Accounting and Control of nuclear materials), for recording and reporting objectives; this computer program comes to bridge the gape between nuclear facilities operators and national inspection verifying records and delivering reports. The SARS maintains and generates at-facility safeguards accounting records and generates International Atomic Energy Agency (IAEA) safeguards reports based on accounting data input by the user at any nuclear facility. A database structure is built and BORLAND DELPHI programming language has been used. The software is designed to be user-friendly, to make extensive and flexible management of menus and graphs. SARS functions include basic physical inventory tacking, transaction histories and reporting. Access controls are made by different passwords.

Virtual Machine-level Software Transactional Memory: Principles, Techniques, and Implementation

DTIC Science & Technology

2015-08-13

against non-VM STMs, with the same algorithm inside the VM versus “outside”it. Our competitor non-VM STMs include Deuce, ObjectFabric, Multiverse , and...TL2 ByteSTM/NOrec Non-VM/NOrec Deuce/TL2 Object Fabric Multiverse JVSTM (a) 20% writes. (b) 80% writes. Fig. 1 Throughput for Linked-List. Higher is...When Scalability Meets Consistency: Genuine Multiversion Update-Serializable Partial Data Replication. In ICDCS, pages 455–465, 2012. [34] D

Monitoring vegetation dynamics in the Amazon with RapidScat

NASA Astrophysics Data System (ADS)

van Emmerik, Tim; Steele-Dunne, Susan; Paget, Aaron C.; van de Giesen, Nick

2017-04-01

Several studies affiliated diurnal variations in radar backscatter over the Amazon [1,2] with vegetation water stress. Recent studies on tree and corn canopies [3,4] have demonstrated that during periods of low soil moisture availability, the total radar backscatter is primarily sensitive to changes in leaf water content, highlighting the potential of radar for water stress detection. The RapidScat mission (Ku-band, 13.4GHz), mounted on the International Space Station, observes the Earth in a non-sun-synchronous orbit [5]. This unique orbit allows for reconstructing diurnal cycles of radar backscatter. We hypothesize that the state of the canopy is a significant portion of the diurnal variations observed in the radar backscatter. Recent, yet inconclusive, analyses support the theory of the impact of vegetation water content on diurnal variation in RapidScat radar backscatter over the Amazon and Congo. Linking ground measurements of canopy dynamics to radar backscatter will allow further exploration of the possibilities for monitoring vegetation dynamics. Our presentation focuses of two parts. First, we reconstruct diurnal cycles of RapidScat backscatter over the Amazon, and study its variation over time. Second, we analyze the pre-dawn backscatter over time. The water content at this time of day is a measure of water stress, and might therefore be visible in the backscatter time series. References [1] Frolking, S., et al.: "Tropical forest backscatter anomaly evident in SeaWinds scatterometer morning overpass data during 2005 drought in Amazonia", Remote Sensing of Environment, 2011. [2] Jaruwatanadilok, S., and B. Stiles: "Trends and variation in Ku-band backscatter of natural targets on land observed in QuikSCAT data", IEEE Transactions on Geoscience and Remote Sensing , 2014. [3] Steele-Dunne, S., et al.: "Using diurnal variation in backscatter to detect vegetation water stress", IEEE Transactions on Geoscience and Remote Sensing, 2012. [4] van Emmerik, T., et al.: "Impact of diurnal variation in vegetation water content on radar backscatter from maize during water stress", IEEE Transactions on Geoscience and Remote Sensing, 2015. [5] Paget, A., et al.: "RapidScat Diurnal Cycles Over Land", IEEE Transactions on Geoscience and Remote Sensing, 2016.

Taming Crowded Visual Scenes

DTIC Science & Technology

2014-08-12

Nolan Warner, Mubarak Shah. Tracking in Dense Crowds Using Prominenceand Neighborhood Motion Concurrence, IEEE Transactions on Pattern Analysis...of  computer  vision,   computer   graphics  and  evacuation  dynamics  by  providing  a  common  platform,  and  provides...areas  that  includes  Computer  Vision,  Computer   Graphics ,  and  Pedestrian   Evacuation  Dynamics.  Despite  the

Trans-acting RNAs as molecular probes for monitoring time-dependent structural change of an RNA complex adapting two structures.

PubMed

Maeda, Yuri; Furuta, Hiroyuki; Ikawa, Yoshiya

2011-03-01

As dynamic structural changes are pivotal for the functions of some classes of RNA molecule, it is important to develop methods to monitor structural changes in RNA in a time-dependent manner without chemical modification. Based on previous reports that trans-acting RNAs can be used as probes for analysis and control of 3D structures of target RNAs, we applied this method to monitor time-dependent structural changes in RNA. We designed and performed a proof-of-principle study using a simple model RNA complex that adopts two different structures as a target. The time-dependent structural changes in the target RNA were successfully monitored using two trans-acting RNAs, which stably form a ternary complex with the bimolecular target RNA and act as a catalyst to join two RNA fragments of the target complex, respectively. Copyright © 2010 The Society for Biotechnology, Japan. Published by Elsevier B.V. All rights reserved.

The dynamics of software development project management: An integrative systems dynamic perspective

NASA Technical Reports Server (NTRS)

Vandervelde, W. E.; Abdel-Hamid, T.

1984-01-01

Rather than continuing to focus on software development projects per se, the system dynamics modeling approach outlined is extended to investigate a broader set of issues pertaining to the software development organization. Rather than trace the life cycle(s) of one or more software projects, the focus is on the operations of a software development department as a continuous stream of software products are developed, placed into operation, and maintained. A number of research questions are ""ripe'' for investigating including: (1) the efficacy of different organizational structures in different software development environments, (2) personnel turnover, (3) impact of management approaches such as management by objectives, and (4) the organizational/environmental determinants of productivity.

CrossTalk: The Journal of Defense Software Engineering. Volume 20, Number 8, August 2007

DTIC Science & Technology

2007-08-01

He challenged anyone to prove or disprove that the solar system was stable. Henri Poincaré, sometimes called the Father of Chaos, was awarded the...the human body and our planet. In other words, examples of open systems are the human body and or solar system where the human body is composed of...interact- ing biological cells and our solar system with planets, stars, etc. They are like an organization where each is engaged in active transactions

Relay Forward-Link File Management Services (MaROS Phase 2)

NASA Technical Reports Server (NTRS)

Allard, Daniel A.; Wallick, Michael N.; Hy, Franklin H.; Gladden, Roy E.

2013-01-01

This software provides the service-level functionality to manage the delivery of files from a lander mission repository to an orbiter mission repository for eventual spacelink relay by the orbiter asset on a specific communications pass. It provides further functions to deliver and track a set of mission-defined messages detailing lander authorization instructions and orbiter data delivery state. All of the information concerning these transactions is persisted in a database providing a high level of accountability of the forward-link relay process.

From Walras’ auctioneer to continuous time double auctions: a general dynamic theory of supply and demand

NASA Astrophysics Data System (ADS)

Donier, J.; Bouchaud, J.-P.

2016-12-01

In standard Walrasian auctions, the price of a good is defined as the point where the supply and demand curves intersect. Since both curves are generically regular, the response to small perturbations is linearly small. However, a crucial ingredient is absent of the theory, namely transactions themselves. What happens after they occur? To answer the question, we develop a dynamic theory for supply and demand based on agents with heterogeneous beliefs. When the inter-auction time is infinitely long, the Walrasian mechanism is recovered. When transactions are allowed to happen in continuous time, a peculiar property emerges: close to the price, supply and demand vanish quadratically, which we empirically confirm on the Bitcoin. This explains why price impact in financial markets is universally observed to behave as the square root of the excess volume. The consequences are important, as they imply that the very fact of clearing the market makes prices hypersensitive to small fluctuations.

Computer-aided software development process design

NASA Technical Reports Server (NTRS)

Lin, Chi Y.; Levary, Reuven R.

1989-01-01

The authors describe an intelligent tool designed to aid managers of software development projects in planning, managing, and controlling the development process of medium- to large-scale software projects. Its purpose is to reduce uncertainties in the budget, personnel, and schedule planning of software development projects. It is based on dynamic model for the software development and maintenance life-cycle process. This dynamic process is composed of a number of time-varying, interacting developmental phases, each characterized by its intended functions and requirements. System dynamics is used as a modeling methodology. The resulting Software LIfe-Cycle Simulator (SLICS) and the hybrid expert simulation system of which it is a subsystem are described.

Finite Strain Behavior of Polyurea for a Wide Range of Strain Rates

DTIC Science & Technology

2010-02-01

dimensional dynamic compressive behavior of EPDM rubber ," Journal of Engineering Materials and Technology, Transaction of the ASME, 125:294-301. [97] Song, B...and Chen, W. (2004) "Dynamic compressive behavior of EPDM rubber un- der nearly uniaxial strain conditions," Journal of Engineering Materials and... rubber elastic springs to describe the steep initial stiffness of virgin butadiene rubber under tensile and compressive loading at intermediate strain

'Surfing the Silk Road': a study of users' experiences.

PubMed

Van Hout, Marie Claire; Bingham, Tim

2013-11-01

The online drug marketplace called 'Silk Road' has operated anonymously on the 'Deep Web' since 2011. It is accessible through computer encrypting software (Tor) and is supported by online transactions using peer to peer anonymous and untraceable crypto-currency (Bit Coins). The study aimed to describe user motives and realities of accessing, navigating and purchasing on the 'Silk Road' marketplace. Systematic online observations, monitoring of discussion threads on the site during four months of fieldwork and analysis of anonymous online interviews (n=20) with a convenience sample of adult 'Silk Road' users was conducted. The majority of participants were male, in professional employment or in tertiary education. Drug trajectories ranged from 18 months to 25 years, with favourite drugs including MDMA, 2C-B, mephedrone, nitrous oxide, ketamine, cannabis and cocaine. Few reported prior experience of online drug sourcing. Reasons for utilizing 'Silk Road' included curiosity, concerns for street drug quality and personal safety, variety of products, anonymous transactioning, and ease of product delivery. Vendor selection appeared to be based on trust, speed of transaction, stealth modes and quality of product. Forums on the site provided user advice, trip reports, product and transaction reviews. Some users reported solitary drug use for psychonautic and introspective purposes. A minority reported customs seizures, and in general a displacement away from traditional drug sourcing (street and closed markets) was described. Several reported intentions to commence vending on the site. The study provides an insight into 'Silk Road' purchasing motives and processes, the interplay between traditional and 'Silk Road' drug markets, the 'Silk Road' online community and its communication networks. Copyright © 2013 Elsevier B.V. All rights reserved.

The Raid distributed database system

NASA Technical Reports Server (NTRS)

Bhargava, Bharat; Riedl, John

1989-01-01

Raid, a robust and adaptable distributed database system for transaction processing (TP), is described. Raid is a message-passing system, with server processes on each site to manage concurrent processing, consistent replicated copies during site failures, and atomic distributed commitment. A high-level layered communications package provides a clean location-independent interface between servers. The latest design of the package delivers messages via shared memory in a configuration with several servers linked into a single process. Raid provides the infrastructure to investigate various methods for supporting reliable distributed TP. Measurements on TP and server CPU time are presented, along with data from experiments on communications software, consistent replicated copy control during site failures, and concurrent distributed checkpointing. A software tool for evaluating the implementation of TP algorithms in an operating-system kernel is proposed.

PSYCHE: An Object-Oriented Approach to Simulating Medical Education

PubMed Central

Mullen, Jamie A.

1990-01-01

Traditional approaches to computer-assisted instruction (CAI) do not provide realistic simulations of medical education, in part because they do not utilize heterogeneous knowledge bases for their source of domain knowledge. PSYCHE, a CAI program designed to teach hypothetico-deductive psychiatric decision-making to medical students, uses an object-oriented implementation of an intelligent tutoring system (ITS) to model the student, domain expert, and tutor. It models the transactions between the participants in complex transaction chains, and uses heterogeneous knowledge bases to represent both domain and procedural knowledge in clinical medicine. This object-oriented approach is a flexible and dynamic approach to modeling, and represents a potentially valuable tool for the investigation of medical education and decision-making.

Dynamic Weather Routes Architecture Overview

NASA Technical Reports Server (NTRS)

Eslami, Hassan; Eshow, Michelle

2014-01-01

Dynamic Weather Routes Architecture Overview, presents the high level software architecture of DWR, based on the CTAS software framework and the Direct-To automation tool. The document also covers external and internal data flows, required dataset, changes to the Direct-To software for DWR, collection of software statistics, and the code structure.

Human Relations Class. A Syllabus.

ERIC Educational Resources Information Center

Guillen, Mary A.

A junior high level human relations class develops human interaction and oral communication skills. A week-by-week syllabus contains the following components: introduction of the students to each other and to the principles of body language, transactional analysis, and group interaction; behavior contracts; group dynamics topics and exercises;…

Transferring Leadership from Business to Education: The Case of Mr. Smith

ERIC Educational Resources Information Center

Boncana, Mohomodou

2014-01-01

This case study is a narrative of four major leadership paradigms: managerial, transactional, transformational, and distributed leaderships. Understanding these leadership styles may help both practicing and prospective school leaders navigate better in the complex, dynamic, murky, and challenging waters of educational leadership. Furthermore,…

The Effect of Group Therapy With Transactional Analysis Approach on Emotional Intelligence, Executive Functions and Drug Dependency.

PubMed

Forghani, Masoomeh; Ghanbari Hashem Abadi, Bahram Ali

2016-06-01

The aim of the present study was to evaluate the effect of group psychotherapy with transactional analysis (TA) approach on emotional intelligence (EI), executive functions and substance dependency among drug-addicts at rehabilitation centers in Mashhad city, Iran, in 2013. In this quasi-experimental study with pretest, posttest, case- control stages, 30 patients were selected from a rehabilitation center and randomly divided into two groups. The case group received 12 sessions of group psychotherapy with transactional analysis approach. Then the effects of independent variable (group psychotherapy with TA approach) on EI, executive function and drug dependency were assessed. The Bar-on test was used for EI, Stroop test for measuring executive function and morphine test, meth-amphetamines and B2 test for evaluating drug dependency. Data were analyzed using multifactorial covariance analysis, Levenes' analysis, MANCOVA, t-student and Pearson correlation coefficient tests t with SPSS software. Our results showed that group psychotherapy with the TA approach was effective in improving EI, executive functions and decreasing drug dependency (P < 0.05). The result of this study showed that group psychotherapy with TA approach has significant effects on addicts and prevents addiction recurrence by improving the coping capabilities and some mental functions of the subjects. However, there are some limitations regarding this study including follow-up duration and sample size.

Communication Simulations for Power System Applications

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

Fuller, Jason C.; Ciraci, Selim; Daily, Jeffrey A.

2013-05-29

New smart grid technologies and concepts, such as dynamic pricing, demand response, dynamic state estimation, and wide area monitoring, protection, and control, are expected to require considerable communication resources. As the cost of retrofit can be high, future power grids will require the integration of high-speed, secure connections with legacy communication systems, while still providing adequate system control and security. While considerable work has been performed to create co-simulators for the power domain with load models and market operations, limited work has been performed in integrating communications directly into a power domain solver. The simulation of communication and power systemsmore » will become more important as the two systems become more inter-related. This paper will discuss ongoing work at Pacific Northwest National Laboratory to create a flexible, high-speed power and communication system co-simulator for smart grid applications. The framework for the software will be described, including architecture considerations for modular, high performance computing and large-scale scalability (serialization, load balancing, partitioning, cross-platform support, etc.). The current simulator supports the ns-3 (telecommunications) and GridLAB-D (distribution systems) simulators. Ongoing and future work will be described, including planned future expansions for a traditional transmission solver. A test case using the co-simulator, utilizing a transactive demand response system created for the Olympic Peninsula and AEP gridSMART demonstrations, requiring two-way communication between distributed and centralized market devices, will be used to demonstrate the value and intended purpose of the co-simulation environment.« less

Cognitive Models for Learning to Control Dynamic Systems

DTIC Science & Technology

2008-09-26

1992 [47] G. F. Franklin and J. D. Powell, Feedback Control of Dynamic Systems, New Jersey: Pearson Prentice Hall 2006 [48] M . Fishbein and I . Ajzen ...the course of decision making, the valence of an action Vi ( i = A or M ) is defined as the subjective expected payoff for each action also fluctuates...research: The role of formal models, IEEE Transactions on Systems, Man, and Cybernetics 16, 1986, pp. 439–449. [54] M . I . Jordan, Constrained

Maternal Depressive Symptomatology and Child Behavior: Transactional Relationship with Simultaneous Bidirectional Coupling

ERIC Educational Resources Information Center

Nicholson, Jody S.; Deboeck, Pascal R.; Farris, Jaelyn R.; Boker, Steven M.; Borkowski, John G.

2011-01-01

The present study investigated reciprocal relationships between adolescent mothers and their children's well-being through an analysis of the coupling relationship of mothers' depressive symptomatology and children's internalizing and externalizing behaviors. Unlike studies using discrete time analyses, the present study used dynamical systems to…

Essays on Technology-Enabled Platforms

ERIC Educational Resources Information Center

Koh, Tat Koon

2012-01-01

This dissertation consists of three studies that examine dynamics on Business-to-Business (B2B) exchanges and crowd-based design contest platforms. In the first study, we examine trust formation and development in global buyer-supplier relationships. Trust affects all business relationships, especially global B2B transactions due to the distances…

"Engaging in an Argumentative Discourse"'- Narratives from Biology Classrooms

ERIC Educational Resources Information Center

Saxena, Astha; Behari, Alka

2015-01-01

The present paper delves into the classroom dynamics of Biology classrooms taking into account teaching learning processes associated with some of the ethical issues in Biological Sciences. Argumentation and debate appear to be the major transactional approaches adopted by teachers for dealing with these issues. The classroom discourses emanating…

Potentials for Spatial Geometry Curriculum Development with Three-Dimensional Dynamic Geometry Software in Lower Secondary Mathematics

ERIC Educational Resources Information Center

Miyazaki, Mikio; Kimiho, Chino; Katoh, Ryuhei; Arai, Hitoshi; Ogihara, Fumihiro; Oguchi, Yuichi; Morozumi, Tatsuo; Kon, Mayuko; Komatsu, Kotaro

2012-01-01

Three-dimensional dynamic geometry software has the power to enhance students' learning of spatial geometry. The purpose of this research is to clarify what potential using three-dimensional dynamic geometry software can offer us in terms of how to develop the spatial geometry curriculum in lower secondary schools. By focusing on the impacts the…

Towards understanding software: 15 years in the SEL

NASA Technical Reports Server (NTRS)

Mcgarry, Frank; Pajerski, Rose

1990-01-01

For 15 years, the Software Engineering Laboratory (SEL) at GSFC has been carrying out studies and experiments for the purpose of understanding, assessing, and improving software, and software processes within a production software environment. The SEL comprises three major organizations: (1) the GSFC Flight Dynamics Division; (2) the University of Maryland Computer Science Department; and (3) the Computer Sciences Corporation Flight Dynamics Technology Group. These organizations have jointly carried out several hundred software studies, producing hundreds of reports, papers, and documents: all describing some aspect of the software engineering technology that has undergone analysis in the flight dynamics environment. The studies range from small controlled experiments (such as analyzing the effectiveness of code reading versus functional testing) to large, multiple-project studies (such as assessing the impacts of Ada on a production environment). The key findings that NASA feels have laid the foundation for ongoing and future software development and research activities are summarized.

Controlled Substance Reconciliation Accuracy Improvement Using Near Real-Time Drug Transaction Capture from Automated Dispensing Cabinets.

PubMed

Epstein, Richard H; Dexter, Franklin; Gratch, David M; Perino, Michael; Magrann, Jerry

2016-06-01

Accurate accounting of controlled drug transactions by inpatient hospital pharmacies is a requirement in the United States under the Controlled Substances Act. At many hospitals, manual distribution of controlled substances from pharmacies is being replaced by automated dispensing cabinets (ADCs) at the point of care. Despite the promise of improved accountability, a high prevalence (15%) of controlled substance discrepancies between ADC records and anesthesia information management systems (AIMS) has been published, with a similar incidence (15.8%; 95% confidence interval [CI], 15.3% to 16.2%) noted at our institution. Most reconciliation errors are clerical. In this study, we describe a method to capture drug transactions in near real-time from our ADCs, compare them with documentation in our AIMS, and evaluate subsequent improvement in reconciliation accuracy. ADC-controlled substance transactions are transmitted to a hospital interface server, parsed, reformatted, and sent to a software script written in Perl. The script extracts the data and writes them to a SQL Server database. Concurrently, controlled drug totals for each patient having care are documented in the AIMS and compared with the balance of the ADC transactions (i.e., vending, transferring, wasting, and returning drug). Every minute, a reconciliation report is available to anesthesia providers over the hospital Intranet from AIMS workstations. The report lists all patients, the current provider, the balance of ADC transactions, the totals from the AIMS, the difference, and whether the case is still ongoing or had concluded. Accuracy and latency of the ADC transaction capture process were assessed via simulation and by comparison with pharmacy database records, maintained by the vendor on a central server located remotely from the hospital network. For assessment of reconciliation accuracy over time, data were collected from our AIMS from January 2012 to June 2013 (Baseline), July 2013 to April 2014 (Next Day Reports), and May 2014 to September 2015 (Near Real-Time Reports) and reconciled against pharmacy records from the central pharmacy database maintained by the vendor. Control chart (batch means) methods were used between successive epochs to determine if improvement had taken place. During simulation, 100% of 10,000 messages, transmitted at a rate of 1295 per minute, were accurately captured and inserted into the database. Latency (transmission time to local database insertion time) was 46.3 ± 0.44 milliseconds (SEM). During acceptance testing, only 1 of 1384 transactions analyzed had a difference between the near real-time process and what was in the central database; this was for a "John Doe" patient whose name had been changed subsequent to data capture. Once a transaction was entered at the ADC workstation, 84.9% (n = 18 bins; 95% CI, 78.4% to 91.3%) of these transactions were available in the database on the AIMS server within 2 minutes. Within 5 minutes, 98.2% (n = 18 bins; 95% CI, 97.2% to 99.3%) were available. Among 145,642 transactions present in the central pharmacy database, only 24 were missing from the local database table (mean = 0.018%; 95% CI, 0.002% to 0.034%). Implementation of near real-time reporting improved the controlled substance reconciliation error rate compared to the previous Next Day Reports epoch, from 8.8% to 5.2% (difference = -3.6%; 95% CI, -4.3% to -2.8%; P < 10). Errors were distributed among staff, with 50% of discrepancies accounted for by 12.4% of providers and 80% accounted for by 28.5% of providers executing transactions during the Near Real-Time Reports epoch. The near real-time system for the capture of transactional data flowing over the hospital network was highly accurate, reliable, and exhibited acceptable latency. This methodology can be used to implement similar data capture for transactions from their drug ADCs. Reconciliation accuracy improved significantly as a result of implementation. Our approach may be of particular utility at facilities with limited pharmacy resources to audit anesthesia records for controlled substance administration and reconcile them against dispensing records.

Flight Dynamic Simulation of Fighter In the Asymmetric External Store Release Process

NASA Astrophysics Data System (ADS)

Safi’i, Imam; Arifianto, Ony; Nurohman, Chandra

2018-04-01

In the fighter design, it is important to evaluate and analyze the flight dynamic of the aircraft earlier in the development process. One of the case is the dynamics of external store release process. A simulation tool can be used to analyze the fighter/external store system’s dynamics in the preliminary design stage. This paper reports the flight dynamics of Jet Fighter Experiment (JF-1 E) in asymmetric Advance Medium Range Air to Air Missile (AMRAAM) release process through simulations. The JF-1 E and AIM 120 AMRAAAM models are built by using Advanced Aircraft Analysis (AAA) and Missile Datcom software. By using these softwares, the aerodynamic stability and control derivatives can be obtained and used to model the dynamic characteristic of the fighter and the external store. The dynamic system is modeled by using MATLAB/Simulink software. By using this software, both the fighter/external store integration and the external store release process is simulated, and the dynamic of the system can be analyzed.

CONTIN XPCS: software for inverse transform analysis of X-ray photon correlation spectroscopy dynamics

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

Andrews, Ross N.; Narayanan, Suresh; Zhang, Fan

X-ray photon correlation spectroscopy (XPCS) and dynamic light scattering (DLS) reveal materials dynamics using coherent scattering, with XPCS permitting the investigation of dynamics in a more diverse array of materials than DLS. Heterogeneous dynamics occur in many material systems. The authors' recent work has shown how classic tools employed in the DLS analysis of heterogeneous dynamics can be extended to XPCS, revealing additional information that conventional Kohlrausch exponential fitting obscures. The present work describes the software implementation of inverse transform analysis of XPCS data. This software, calledCONTIN XPCS, is an extension of traditionalCONTINanalysis and accommodates the various dynamics encountered inmore » equilibrium XPCS measurements.« less

CONTIN XPCS: software for inverse transform analysis of X-ray photon correlation spectroscopy dynamics

DOE PAGES

Andrews, Ross N.; Narayanan, Suresh; Zhang, Fan; ...

2018-02-01

X-ray photon correlation spectroscopy (XPCS) and dynamic light scattering (DLS) reveal materials dynamics using coherent scattering, with XPCS permitting the investigation of dynamics in a more diverse array of materials than DLS. Heterogeneous dynamics occur in many material systems. The authors' recent work has shown how classic tools employed in the DLS analysis of heterogeneous dynamics can be extended to XPCS, revealing additional information that conventional Kohlrausch exponential fitting obscures. The present work describes the software implementation of inverse transform analysis of XPCS data. This software, calledCONTIN XPCS, is an extension of traditionalCONTINanalysis and accommodates the various dynamics encountered inmore » equilibrium XPCS measurements.« less

Secure HL7 transactions using Internet mail (Internet draft).

PubMed

Schadow, Gunther; Tucker, Mark; Rishel, Wes

2002-01-01

The document describes the applicability of the Internet standardisation efforts on secure electronic data interchange (EDI) transactions for Health Level-7 (HL7), an EDI standard for Healthcare used world-wide. The document heavily relies on the work in progress by the IETF EDIINT working group. It is in most parts a restatement of the EDIINTs requirements document and application statement 1 (AS#1) tailored to the needs of the HL7 audience. The authors tried to make the document as self consistent as possible. The goal is to give to the reader who is not a security or Internet standards expert enough foundational and detail information to enable him to build communication software that complies to the Internet standards. Even though the authors rely on and promote the respective Internet standards and drafts, they did not withstand from commenting on and criticising the work where they see upcoming problems in use with HL7 or other EDI protocols that have not been in the initial focus of the EDIINT working group. The authors make suggestions to add parameters to the specification of the MIME type for EDI messages in RFC 1767 in order to enhance functionality. The authors give use cases for a larger subset of disposition types and modifiers of message disposition notifications. One key issue where the document goes beyond the current EDIINT drafts is the concept of non-repudiation of commitment to an EDI transaction. Secure EDI transactions should be regarded as "distributed contracts," i.e. not only the sending and receiving of single messages should be non-refutable but also the connection between messages interchanges. In anticipation of this requirement HL7 usually requires a response message to be sent to acknowledge every transaction. The authors therefore have the requirement to securely couple an EDI response message to its request message. Given the current shape of RFC 1767 this is generally possible only if a response message is coupled with an MDN receipt and the combination of both signed by the responder. The document describes a protocol to bundle MDN and response that uses the MIME multi-part/related content type in RFC 2112.

Software Management Environment (SME) concepts and architecture, revision 1

NASA Technical Reports Server (NTRS)

Hendrick, Robert; Kistler, David; Valett, Jon

1992-01-01

This document presents the concepts and architecture of the Software Management Environment (SME), developed for the Software Engineering Branch of the Flight Dynamic Division (FDD) of GSFC. The SME provides an integrated set of experience-based management tools that can assist software development managers in managing and planning flight dynamics software development projects. This document provides a high-level description of the types of information required to implement such an automated management tool.

Spot: A Programming Language for Verified Flight Software

NASA Technical Reports Server (NTRS)

Bocchino, Robert L., Jr.; Gamble, Edward; Gostelow, Kim P.; Some, Raphael R.

2014-01-01

The C programming language is widely used for programming space flight software and other safety-critical real time systems. C, however, is far from ideal for this purpose: as is well known, it is both low-level and unsafe. This paper describes Spot, a language derived from C for programming space flight systems. Spot aims to maintain compatibility with existing C code while improving the language and supporting verification with the SPIN model checker. The major features of Spot include actor-based concurrency, distributed state with message passing and transactional updates, and annotations for testing and verification. Spot also supports domain-specific annotations for managing spacecraft state, e.g., communicating telemetry information to the ground. We describe the motivation and design rationale for Spot, give an overview of the design, provide examples of Spot's capabilities, and discuss the current status of the implementation.

Transactional relationships among cognitive vulnerabilities, stressors, and depressive symptoms in adolescence.

PubMed

Calvete, Esther; Orue, Izaskun; Hankin, Benjamin L

2013-04-01

The transactional cognitive vulnerability to stress model Hankin & Abramson (Psychological Bulletin, 127:773-796, 2001) extends the traditional diathesis-stress model by proposing that the relationships among cognitions, depressive symptoms, and stressors are dynamic and bidirectional. In this study three different pathways among these variables were assessed simultaneously: (1) cognitive vulnerabilities and stressors as predictors of depressive symptoms (vulnerability model), (2) depressive symptoms and cognitive vulnerabilities as predictors of stressors (stress generation model), and (3) depressive symptoms and stressors as predictors of cognitive vulnerabilities (consequence model). A fully cross-lagged design panel was employed with 1,187 adolescents (545 girls and 642 boys, Mean Age = 13.42 years) who were assessed at two time points separated by 6 months. They completed measures of cognitive vulnerabilities (maladaptive schema domains and negative inferential style), stressors, and depressive symptoms. Inferential style and schemas of the disconnection and rejection domain predicted prospective increases in depressive symptoms. Initial levels of depressive symptoms and most cognitive vulnerabilities predicted greater stress generation. Initial levels of stressors and depressive symptoms predicted an increase in negative inferential style and maladaptive schema domains over time. These bidirectional relationships were mostly similar for boys and girls, although there were a few gender differences. The findings support a transactional model with reciprocal relationships among stress, depressive symptoms, and cognitive vulnerabilities. Transactional implications for depression interventions among adolescents are discussed.

Treating personality-relationship transactions with respect: narrow facets, advanced models, and extended time frames.

PubMed

Mund, Marcus; Neyer, Franz J

2014-08-01

Contrary to premises of dynamic transactionism, most studies investigating personality-relationship transaction only found personality effects on relationships but failed to find effects of relationship experiences on personality development. The current study reconsiders this issue in 3 ways. First, alongside the broad Big Five characteristics (Neuroticism, Extraversion, Openness, Agreeableness, and Conscientiousness), specific personality facets were considered to make comparisons with relationships more symmetric. Second, a recent extension of latent change modeling was applied allowing for a theoretically more appropriate model that compensates for the shortcomings of traditionally used cross-lagged panel or growth curve models. Third, personality-relationship transaction was studied from young adulthood to midlife using a 15-year longitudinal study with 654 German adults. Results showed patterns of personality-relationship transaction with the romantic partner, friends, kin, and other interaction partners. Specifically, the development of Neuroticism, Agreeableness, and Conscientiousness and their facets was closely interacting with partner and friend relationships, underlining the importance of these relationships for personality maturation during the adult years. We conclude that relationship effects have often been underestimated in previous studies. They are not bound to specific developmental periods, such as emerging adulthood, but their detection depends on the modeling approach and the analysis level (broad dimensions vs. facets). Relationship effects are most likely to occur in relationships that reflect self-selected life styles and circumstances.

Cultural and cognitive considerations in the prevention of American Indian adolescent suicide.

PubMed

LaFromboise, T D; Bigfoot, D S

1988-06-01

A description of cultural considerations associated with American Indian adolescent coping is presented within a transactional, cognitive-phenomenological framework. Select cultural values and cultural beliefs of American Indians associated with death are discussed in terms of person variables and situational demand characteristics that interplay in the transactional coping process. Three situational demand characteristics (ambiguity of identity, frequency of loss, and pervasiveness of hardships) are then presented to illustrate the reciprocal relationship between environmental contingencies and American Indian individual and community efforts at coping. The dynamic interdependence between person and environmental variables is emphasized and considered essential for inclusion in the design of interventions to prevent suicide. Existing intervention efforts with American Indian adolescent suicide attempters are reviewed and a school-wide cognitive behavioural approach based on the transactional model of coping with suicide is described. It is suggested that on-going cognitive restructuring, social skills training, and peer counselling training activities be culturally adapted and integrated into relevant areas of the school curricula in order that coping be enhanced and suicide ameliorated.

An Incremental High-Utility Mining Algorithm with Transaction Insertion

PubMed Central

Gan, Wensheng; Zhang, Binbin

2015-01-01

Association-rule mining is commonly used to discover useful and meaningful patterns from a very large database. It only considers the occurrence frequencies of items to reveal the relationships among itemsets. Traditional association-rule mining is, however, not suitable in real-world applications since the purchased items from a customer may have various factors, such as profit or quantity. High-utility mining was designed to solve the limitations of association-rule mining by considering both the quantity and profit measures. Most algorithms of high-utility mining are designed to handle the static database. Fewer researches handle the dynamic high-utility mining with transaction insertion, thus requiring the computations of database rescan and combination explosion of pattern-growth mechanism. In this paper, an efficient incremental algorithm with transaction insertion is designed to reduce computations without candidate generation based on the utility-list structures. The enumeration tree and the relationships between 2-itemsets are also adopted in the proposed algorithm to speed up the computations. Several experiments are conducted to show the performance of the proposed algorithm in terms of runtime, memory consumption, and number of generated patterns. PMID:25811038

A Transactional Systems Model of Autism Services

PubMed Central

Cuvo, Anthony J; Vallelunga, Lori R

2007-01-01

There has been an escalation in the number of children identified with autism spectrum disorders in recent years. To increase the likelihood that treatments for these children are effective, interventions should be derived from sound theory and research evidence. Absent this supportive foundation, intervention programs could be inconsequential if not harmful. Although atypical, the development of children with autism should be considered initially from the perspective of the same variables that affect the development of typical children. In addition, the developmental deviations that characterize autism must be considered when developing intervention programs. Behavioral systems models describe both typical and atypical development and emphasize dynamic multidirectional person–environment transactions. The environment is viewed as having multiple levels, from the individuals with autism themselves, to larger societal and cultural levels. Behavioral systems models of human development can be generalized to a transactional systems model of services for children with autism. This model is the foundational theoretical position of the Southern Illinois University Center for Autism Spectrum Disorders. The center's programs are described to illustrate the application of the model to multiple levels of the social ecology. PMID:22478495

Space station dynamics, attitude control and momentum management

NASA Technical Reports Server (NTRS)

Sunkel, John W.; Singh, Ramen P.; Vengopal, Ravi

1989-01-01

The Space Station Attitude Control System software test-bed provides a rigorous environment for the design, development and functional verification of GN and C algorithms and software. The approach taken for the simulation of the vehicle dynamics and environmental models using a computationally efficient algorithm is discussed. The simulation includes capabilities for docking/berthing dynamics, prescribed motion dynamics associated with the Mobile Remote Manipulator System (MRMS) and microgravity disturbances. The vehicle dynamics module interfaces with the test-bed through the central Communicator facility which is in turn driven by the Station Control Simulator (SCS) Executive. The Communicator addresses issues such as the interface between the discrete flight software and the continuous vehicle dynamics, and multi-programming aspects such as the complex flow of control in real-time programs. Combined with the flight software and redundancy management modules, the facility provides a flexible, user-oriented simulation platform.

GDP-to-GTP exchange on the microtubule end can contribute to the frequency of catastrophe

PubMed Central

Piedra, Felipe-Andrés; Kim, Tae; Garza, Emily S.; Geyer, Elisabeth A.; Burns, Alexander; Ye, Xuecheng; Rice, Luke M.

2016-01-01

Microtubules are dynamic polymers of αβ-tubulin that have essential roles in chromosome segregation and organization of the cytoplasm. Catastrophe—the switch from growing to shrinking—occurs when a microtubule loses its stabilizing GTP cap. Recent evidence indicates that the nucleotide on the microtubule end controls how tightly an incoming subunit will be bound (trans-acting GTP), but most current models do not incorporate this information. We implemented trans-acting GTP into a computational model for microtubule dynamics. In simulations, growing microtubules often exposed terminal GDP-bound subunits without undergoing catastrophe. Transient GDP exposure on the growing plus end slowed elongation by reducing the number of favorable binding sites on the microtubule end. Slower elongation led to erosion of the GTP cap and an increase in the frequency of catastrophe. Allowing GDP-to-GTP exchange on terminal subunits in simulations mitigated these effects. Using mutant αβ-tubulin or modified GTP, we showed experimentally that a more readily exchangeable nucleotide led to less frequent catastrophe. Current models for microtubule dynamics do not account for GDP-to-GTP exchange on the growing microtubule end, so our findings provide a new way of thinking about the molecular events that initiate catastrophe. PMID:27146111

Dynamics and biases of online attention: the case of aircraft crashes.

PubMed

García-Gavilanes, Ruth; Tsvetkova, Milena; Yasseri, Taha

2016-10-01

The Internet not only has changed the dynamics of our collective attention but also through the transactional log of online activities, provides us with the opportunity to study attention dynamics at scale. In this paper, we particularly study attention to aircraft incidents and accidents using Wikipedia transactional data in two different language editions, English and Spanish. We study both the editorial activities on and the viewership of the articles about airline crashes. We analyse how the level of attention is influenced by different parameters such as number of deaths, airline region, and event locale and date. We find evidence that the attention given by Wikipedia editors to pre-Wikipedia aircraft incidents and accidents depends on the region of the airline for both English and Spanish editions. North American airline companies receive more prompt coverage in English Wikipedia. We also observe that the attention given by Wikipedia visitors is influenced by the airline region but only for events with a high number of deaths. Finally we show that the rate and time span of the decay of attention is independent of the number of deaths and a fast decay within about a week seems to be universal. We discuss the implications of these findings in the context of attention bias.

A-Type Lamins Maintain the Positional Stability of DNA Damage Repair Foci in Mammalian Nuclei

PubMed Central

Mahen, Robert; Hattori, Hiroyoshi; Lee, Miyoung; Sharma, Pooja; Jeyasekharan, Anand D.; Venkitaraman, Ashok R.

2013-01-01

A-type lamins encoded by LMNA form a structural fibrillar meshwork within the mammalian nucleus. How this nuclear organization may influence the execution of biological processes involving DNA transactions remains unclear. Here, we characterize changes in the dynamics and biochemical interactions of lamin A/C after DNA damage. We find that DNA breakage reduces the mobility of nucleoplasmic GFP-lamin A throughout the nucleus as measured by dynamic fluorescence imaging and spectroscopy in living cells, suggestive of incorporation into stable macromolecular complexes, but does not induce the focal accumulation of GFP-lamin A at damage sites. Using a proximity ligation assay and biochemical analyses, we show that lamin A engages chromatin via histone H2AX and its phosphorylated form (γH2AX) induced by DNA damage, and that these interactions are enhanced after DNA damage. Finally, we use three-dimensional time-lapse imaging to show that LMNA inactivation significantly reduces the positional stability of DNA repair foci in living cells. This defect is partially rescued by the stable expression of GFP-lamin A. Thus collectively, our findings suggest that the dynamic structural meshwork formed by A-type lamins anchors sites of DNA repair in mammalian nuclei, providing fresh insight into the control of DNA transactions by nuclear structural organization. PMID:23658700

Dynamics and biases of online attention: the case of aircraft crashes

NASA Astrophysics Data System (ADS)

García-Gavilanes, Ruth; Tsvetkova, Milena; Yasseri, Taha

2016-10-01

The Internet not only has changed the dynamics of our collective attention but also through the transactional log of online activities, provides us with the opportunity to study attention dynamics at scale. In this paper, we particularly study attention to aircraft incidents and accidents using Wikipedia transactional data in two different language editions, English and Spanish. We study both the editorial activities on and the viewership of the articles about airline crashes. We analyse how the level of attention is influenced by different parameters such as number of deaths, airline region, and event locale and date. We find evidence that the attention given by Wikipedia editors to pre-Wikipedia aircraft incidents and accidents depends on the region of the airline for both English and Spanish editions. North American airline companies receive more prompt coverage in English Wikipedia. We also observe that the attention given by Wikipedia visitors is influenced by the airline region but only for events with a high number of deaths. Finally we show that the rate and time span of the decay of attention is independent of the number of deaths and a fast decay within about a week seems to be universal. We discuss the implications of these findings in the context of attention bias.

Dynamics and biases of online attention: the case of aircraft crashes

PubMed Central

García-Gavilanes, Ruth; Tsvetkova, Milena

2016-01-01

The Internet not only has changed the dynamics of our collective attention but also through the transactional log of online activities, provides us with the opportunity to study attention dynamics at scale. In this paper, we particularly study attention to aircraft incidents and accidents using Wikipedia transactional data in two different language editions, English and Spanish. We study both the editorial activities on and the viewership of the articles about airline crashes. We analyse how the level of attention is influenced by different parameters such as number of deaths, airline region, and event locale and date. We find evidence that the attention given by Wikipedia editors to pre-Wikipedia aircraft incidents and accidents depends on the region of the airline for both English and Spanish editions. North American airline companies receive more prompt coverage in English Wikipedia. We also observe that the attention given by Wikipedia visitors is influenced by the airline region but only for events with a high number of deaths. Finally we show that the rate and time span of the decay of attention is independent of the number of deaths and a fast decay within about a week seems to be universal. We discuss the implications of these findings in the context of attention bias. PMID:27853560

A Database for Propagation Models and Conversion to C++ Programming Language

NASA Technical Reports Server (NTRS)

Kantak, Anil V.; Angkasa, Krisjani; Rucker, James

1996-01-01

The telecommunications system design engineer generally needs the quantification of effects of the propagation medium (definition of the propagation channel) to design an optimal communications system. To obtain the definition of the channel, the systems engineer generally has a few choices. A search of the relevant publications such as the IEEE Transactions, CCIR's, NASA propagation handbook, etc., may be conducted to find the desired channel values. This method may need excessive amounts of time and effort on the systems engineer's part and there is a possibility that the search may not even yield the needed results. To help the researcher and the systems engineers, it was recommended by the conference participants of NASA Propagation Experimenters (NAPEX) XV (London, Ontario, Canada, June 28 and 29, 1991) that a software should be produced that would contain propagation models and the necessary prediction methods of most propagation phenomena. Moreover, the software should be flexible enough for the user to make slight changes to the models without expending a substantial effort in programming. In the past few years, a software was produced to fit these requirements as best as could be done. The software was distributed to all NAPEX participants for evaluation and use, the participant reactions, suggestions etc., were gathered and were used to improve the subsequent releases of the software. The existing database program is in the Microsoft Excel application software and works fine within the guidelines of that environment, however, recently there have been some questions about the robustness and survivability of the Excel software in the ever changing (hopefully improving) world of software packages.

Commission 7: Celestial Mechanics and Dynamical Astronomy

NASA Astrophysics Data System (ADS)

Knežević, Zoran; Morbidelli, Alessandro; Burns, Joseph A.; Athanassoula, Evangelia; Laskar, Jacques; Malhotra, Renu; Mikkola, Seppo; Peale, Stanton J.; Roig, Fernando

2012-04-01

At the time this report was written, Commission 7 according to the IAU database had 304 registered members. The activities of Commission 7 in the past triennium closely followed the plan outlined at the business meeting of the Commission held on August 5, 2009 in Rio de Janeiro (Transactions IAU, Volume XXVIIB, 119-120).

Dynamic Associations between Maternal Depressive Symptoms and Adolescents' Depressive and Externalizing Symptoms

ERIC Educational Resources Information Center

Kouros, Chrystyna D.; Garber, Judy

2010-01-01

The current prospective study investigated transactional relations between maternal depressive symptoms and children's depressive and externalizing symptoms. Participants included 240 children (M age = 11.86 years, SD = 0.56; 53.9% female) and their mothers who were part of a 6-year longitudinal study. Measures of maternal depression (Beck…

Interactive Maps for Community in Online Learning

ERIC Educational Resources Information Center

Cavanaugh, Terence W.; Cavanaugh, Cathy

2008-01-01

The online courses studied here used the visual medium of the interactive geographic map as a form of dialogue to reduce students' sense of transactional distance during the course, build their skills with Web 2.0 media, and increase their motivation. Using the dynamic map and the related online spreadsheet, the course participants created digital…

A Scheduling Algorithm for the Distributed Student Registration System in Transaction-Intensive Environment

ERIC Educational Resources Information Center

Li, Wenhao

2011-01-01

Distributed workflow technology has been widely used in modern education and e-business systems. Distributed web applications have shown cross-domain and cooperative characteristics to meet the need of current distributed workflow applications. In this paper, the author proposes a dynamic and adaptive scheduling algorithm PCSA (Pre-Calculated…

Mixing Qualitative and Quantitative Research in Developmental Science: Uses and Methodological Choices

ERIC Educational Resources Information Center

Yoshikawa, Hirokazu; Weisner, Thomas S.; Kalil, Ariel; Way, Niobe

2008-01-01

Multiple methods are vital to understanding development as a dynamic, transactional process. This article focuses on the ways in which quantitative and qualitative methodologies can be combined to enrich developmental science and the study of human development, focusing on the practical questions of "when" and "how." Research situations that may…

Psychofamilial Correlates of School Disorders.

ERIC Educational Resources Information Center

Ehrlich, Marc I.

A child's school disorder can, and most often does, exist within the complexity of the family's transactional patterns and must be dealt with in this context. To do so, a conceptual model of family dynamics is needed. Minuchin (1979) offers a theoretical framework to help structure such a model. He and his colleagues identified five common…

Theoretical and software considerations for nonlinear dynamic analysis

NASA Technical Reports Server (NTRS)

Schmidt, R. J.; Dodds, R. H., Jr.

1983-01-01

In the finite element method for structural analysis, it is generally necessary to discretize the structural model into a very large number of elements to accurately evaluate displacements, strains, and stresses. As the complexity of the model increases, the number of degrees of freedom can easily exceed the capacity of present-day software system. Improvements of structural analysis software including more efficient use of existing hardware and improved structural modeling techniques are discussed. One modeling technique that is used successfully in static linear and nonlinear analysis is multilevel substructuring. This research extends the use of multilevel substructure modeling to include dynamic analysis and defines the requirements for a general purpose software system capable of efficient nonlinear dynamic analysis. The multilevel substructuring technique is presented, the analytical formulations and computational procedures for dynamic analysis and nonlinear mechanics are reviewed, and an approach to the design and implementation of a general purpose structural software system is presented.

[Permanent disability and the insurance estimation process].

PubMed

Soumah, M M; Mbaye, I; Ndiaye, M; Bah, H; Gaye Fall, M C; Sow, M L

2006-01-01

The casualties are indemnified according to two processes. First by transaction on rate proposition of insurance physicians, and the second process on rate proposition by a medical expert assigned by law-court. Indemnification scale failure justifies the Interafrican Conference of insurance Markets code adoption. Six insurance societies and the Automotive Guarantee Fund were debtors. Only 627 victims had been indemnified between 1986 and 2003. Expert valuations done at forensic medicine service were the support of the investigation. Inquired parameters were insurance societies, regulation type, aftermaths and the retained prejudices. The data collected on computer card have been analyzed by software Epi Info. The partial permanent inabilities fixed since its adoption differ to inabilities fixed before this adoption. Transaction process concerned 567 victims (90.4%). Sixty victims were indemnified by judicial way. According to process type, the rates fixed in judicial process were 61.6% middle permanent partial inabilities. After 1997, there have observed a decrease in the high and middle permanent partial inabilities in the two processes. The appreciation of the pretium doloris is more subjective but must repair the aftermaths. The middle pretium was majority in the two processes, before and after 1997 with a high decrease of the middle pretium in the transaction process (-15.07) and a small pretium increase of 10.98 points. A common scale code has decreased the judicial litigation concerning casualties in spite of scales' limits. Only the patients with important aftermaths arrive in the judicial process since 1997.

Flight dynamics system software development environment (FDS/SDE) tutorial

NASA Technical Reports Server (NTRS)

Buell, John; Myers, Philip

1986-01-01

A sample development scenario using the Flight Dynamics System Software Development Environment (FDS/SDE) is presented. The SDE uses a menu-driven, fill-in-the-blanks format that provides online help at all steps, thus eliminating lengthy training and allowing immediate use of this new software development tool.

Bigger data, collaborative tools and the future of predictive drug discovery

NASA Astrophysics Data System (ADS)

Ekins, Sean; Clark, Alex M.; Swamidass, S. Joshua; Litterman, Nadia; Williams, Antony J.

2014-10-01

Over the past decade we have seen a growth in the provision of chemistry data and cheminformatics tools as either free websites or software as a service commercial offerings. These have transformed how we find molecule-related data and use such tools in our research. There have also been efforts to improve collaboration between researchers either openly or through secure transactions using commercial tools. A major challenge in the future will be how such databases and software approaches handle larger amounts of data as it accumulates from high throughput screening and enables the user to draw insights, enable predictions and move projects forward. We now discuss how information from some drug discovery datasets can be made more accessible and how privacy of data should not overwhelm the desire to share it at an appropriate time with collaborators. We also discuss additional software tools that could be made available and provide our thoughts on the future of predictive drug discovery in this age of big data. We use some examples from our own research on neglected diseases, collaborations, mobile apps and algorithm development to illustrate these ideas.

Solving Equations of Multibody Dynamics

NASA Technical Reports Server (NTRS)

Jain, Abhinandan; Lim, Christopher

2007-01-01

Darts++ is a computer program for solving the equations of motion of a multibody system or of a multibody model of a dynamic system. It is intended especially for use in dynamical simulations performed in designing and analyzing, and developing software for the control of, complex mechanical systems. Darts++ is based on the Spatial-Operator- Algebra formulation for multibody dynamics. This software reads a description of a multibody system from a model data file, then constructs and implements an efficient algorithm that solves the dynamical equations of the system. The efficiency and, hence, the computational speed is sufficient to make Darts++ suitable for use in realtime closed-loop simulations. Darts++ features an object-oriented software architecture that enables reconfiguration of system topology at run time; in contrast, in related prior software, system topology is fixed during initialization. Darts++ provides an interface to scripting languages, including Tcl and Python, that enable the user to configure and interact with simulation objects at run time.

Transactions Between Child Social Wariness and Observed Structured Parenting: Evidence From a Prospective Adoption Study

PubMed Central

Natsuaki, Misaki N.; Leve, Leslie D.; Harold, Gordon T.; Neiderhiser, Jenae M.; Shaw, Daniel S.; Ganiban, Jody; Scaramella, Laura V.; Reiss, David

2013-01-01

This investigation examined the mutual influences between structured parenting and child social wariness during toddlerhood using a longitudinal adoption design. The sample consisted of 361 adoption-linked families, each including an adopted child, adoptive parents, and a birth mother. Heightened social wariness in children at age 18 months predicted reduced levels of observed structured parenting (i.e., less directive parenting with fewer commands and requests) in adoptive mothers at age 27 months. Adoptive fathers’ lower structured parenting at age 18 months predicted subsequent elevation in child social wariness. Birth mothers’ history of fear-related anxiety disorders was not associated with child social wariness. Findings highlight the role of dynamic family transactions in the development of social wariness during toddlerhood. PMID:23448430

The Software Engineering Laboratory: An operational software experience factory

NASA Technical Reports Server (NTRS)

Basili, Victor R.; Caldiera, Gianluigi; Mcgarry, Frank; Pajerski, Rose; Page, Gerald; Waligora, Sharon

1992-01-01

For 15 years, the Software Engineering Laboratory (SEL) has been carrying out studies and experiments for the purpose of understanding, assessing, and improving software and software processes within a production software development environment at NASA/GSFC. The SEL comprises three major organizations: (1) NASA/GSFC, Flight Dynamics Division; (2) University of Maryland, Department of Computer Science; and (3) Computer Sciences Corporation, Flight Dynamics Technology Group. These organizations have jointly carried out several hundred software studies, producing hundreds of reports, papers, and documents, all of which describe some aspect of the software engineering technology that was analyzed in the flight dynamics environment at NASA. The studies range from small, controlled experiments (such as analyzing the effectiveness of code reading versus that of functional testing) to large, multiple project studies (such as assessing the impacts of Ada on a production environment). The organization's driving goal is to improve the software process continually, so that sustained improvement may be observed in the resulting products. This paper discusses the SEL as a functioning example of an operational software experience factory and summarizes the characteristics of and major lessons learned from 15 years of SEL operations.

Evolution of Secondary Software Businesses: Understanding Industry Dynamics

NASA Astrophysics Data System (ADS)

Tyrväinen, Pasi; Warsta, Juhani; Seppänen, Veikko

Primary software industry originates from IBM's decision to unbundle software-related computer system development activities to external partners. This kind of outsourcing from an enterprise internal software development activity is a common means to start a new software business serving a vertical software market. It combines knowledge of the vertical market process with competence in software development. In this research, we present and analyze the key figures of the Finnish secondary software industry, in order to quantify its interaction with the primary software industry during the period of 2000-2003. On the basis of the empirical data, we present a model for evolution of a secondary software business, which makes explicit the industry dynamics. It represents the shift from internal software developed for competitive advantage to development of products supporting standard business processes on top of standardized technologies. We also discuss the implications for software business strategies in each phase.

Virtually Out of This World!

NASA Technical Reports Server (NTRS)

2002-01-01

Ames Research Center granted Reality Capture Technologies (RCT), Inc., a license to further develop NASA's Mars Map software platform. The company incorporated NASA#s innovation into software that uses the Virtual Plant Model (VPM)(TM) to structure, modify, and implement the construction sites of industrial facilities, as well as develop, validate, and train operators on procedures. The VPM orchestrates the exchange of information between engineering, production, and business transaction systems. This enables users to simulate, control, and optimize work processes while increasing the reliability of critical business decisions. Engineers can complete the construction process and test various aspects of it in virtual reality before building the actual structure. With virtual access to and simulation of the construction site, project personnel can manage, access control, and respond to changes on complex constructions more effectively. Engineers can also create operating procedures, training, and documentation. Virtual Plant Model(TM) is a trademark of Reality Capture Technologies, Inc.

Product assurance policies and procedures for flight dynamics software development

NASA Technical Reports Server (NTRS)

Perry, Sandra; Jordan, Leon; Decker, William; Page, Gerald; Mcgarry, Frank E.; Valett, Jon

1987-01-01

The product assurance policies and procedures necessary to support flight dynamics software development projects for Goddard Space Flight Center are presented. The quality assurance and configuration management methods and tools for each phase of the software development life cycles are described, from requirements analysis through acceptance testing; maintenance and operation are not addressed.

Learning Fraction Comparison by Using a Dynamic Mathematics Software--GeoGebra

ERIC Educational Resources Information Center

Poon, Kin Keung

2018-01-01

GeoGebra is a mathematics software system that can serve as a tool for inquiry-based learning. This paper deals with the application of a fraction comparison software, which is constructed by GeoGebra, for use in a dynamic mathematics environment. The corresponding teaching and learning issues have also been discussed.

Learning fraction comparison by using a dynamic mathematics software - GeoGebra

NASA Astrophysics Data System (ADS)

Poon, Kin Keung

2018-04-01

GeoGebra is a mathematics software system that can serve as a tool for inquiry-based learning. This paper deals with the application of a fraction comparison software, which is constructed by GeoGebra, for use in a dynamic mathematics environment. The corresponding teaching and learning issues have also been discussed.

Self-perception of leadership styles and behaviour in primary health care.

PubMed

Jodar I Solà, Glòria; Gené I Badia, Joan; Hito, Pilar Delgado; Osaba, M Antonia Campo; Del Val García, Jose Luís

2016-10-12

The concept of leadership has been studied in various disciplines and from different theoretical approaches. It is a dynamic concept that evolves over time. There are few studies in our field on managers' self-perception of their leadership style. There are no pure styles, but one or another style is generally favoured to a greater or lesser degree. In the primary health care (PHC) setting, managers' leadership style is defined as a set of attitudes, behaviours, beliefs and values. The objectives of this study were to describe and learn about the self-perception of behaviours and leadership styles among PHC managers; to determine the influence of the leadership style on job satisfaction, efficiency, and willingness to work in a team; and to determine the relationship between transformational and transactional styles according age, gender, profession, type of manager years of management experience, and the type of organization. To describe leadership styles as perceived by PHC managers, a cross sectional study was performed using an 82 items-self-administered Multifactor Leadership Questionnaire (MLQ). This questionnaire measures leadership styles, attitudes and behaviour of managers. The items are grouped into three first order variables (transformational, transactional and laissez-faire) and ten second order variables (which discriminate leader behaviours). Additionally, the questionnaire evaluates organizational consequences such as extra-effort, efficiency and satisfaction. One hundred forty responses from 258 managers of 133 PHC teams in the Barcelona Health Area (response rate: 54.26 %). Most participants were nurses (61.4 %), average age was 49 years and the gender predominantly female (75 %). Globally, managers assessed themselves as equally transactional and transformational leaders (average: 3.30 points). Grouped by profession, nurses (28.57 % of participants) showed a higher transactional leadership style, over transformational leadership style, compared to physicians (3.38 points, p < 0.003). Considering gender, men obtained the lowest results in transactional style (p < 0.015). Both transactional and transformational styles correlate with efficiency and job satisfaction (r = 0.724 and r = 0.710, respectively). PHC managers' self-perception of their leadership style was transactional, focused on the maintenance of the status quo, although there was a trend in some scores towards the transformational style, mainly among nurse managers. Both styles correlate with satisfaction and willingness to strive to work better.

The Social World, the Creative Self, and the Ongoing Achievement of Freedom

ERIC Educational Resources Information Center

Mayer, Susan Jean

2017-01-01

As an educator, Maxine Greene returned repeatedly to the dynamic transaction that John Dewey had theorized between a vital social world and individual creativity. With Dewey, she viewed mutually transformative relations with others as the wellspring of all personal growth and social progress and as key to achieving a form of freedom that both…

Implementing a modeling software for animated protein-complex interactions using a physics simulation library.

PubMed

Ueno, Yutaka; Ito, Shuntaro; Konagaya, Akihiko

2014-12-01

To better understand the behaviors and structural dynamics of proteins within a cell, novel software tools are being developed that can create molecular animations based on the findings of structural biology. This study proposes our method developed based on our prototypes to detect collisions and examine the soft-body dynamics of molecular models. The code was implemented with a software development toolkit for rigid-body dynamics simulation and a three-dimensional graphics library. The essential functions of the target software system included the basic molecular modeling environment, collision detection in the molecular models, and physical simulations of the movement of the model. Taking advantage of recent software technologies such as physics simulation modules and interpreted scripting language, the functions required for accurate and meaningful molecular animation were implemented efficiently.

Faster than Real-Time Dynamic Simulation for Large-Size Power System with Detailed Dynamic Models using High-Performance Computing Platform

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

Huang, Renke; Jin, Shuangshuang; Chen, Yousu

This paper presents a faster-than-real-time dynamic simulation software package that is designed for large-size power system dynamic simulation. It was developed on the GridPACKTM high-performance computing (HPC) framework. The key features of the developed software package include (1) faster-than-real-time dynamic simulation for a WECC system (17,000 buses) with different types of detailed generator, controller, and relay dynamic models, (2) a decoupled parallel dynamic simulation algorithm with optimized computation architecture to better leverage HPC resources and technologies, (3) options for HPC-based linear and iterative solvers, (4) hidden HPC details, such as data communication and distribution, to enable development centered on mathematicalmore » models and algorithms rather than on computational details for power system researchers, and (5) easy integration of new dynamic models and related algorithms into the software package.« less

Benchmarking of dynamic simulation predictions in two software platforms using an upper limb musculoskeletal model

PubMed Central

Saul, Katherine R.; Hu, Xiao; Goehler, Craig M.; Vidt, Meghan E.; Daly, Melissa; Velisar, Anca; Murray, Wendy M.

2014-01-01

Several opensource or commercially available software platforms are widely used to develop dynamic simulations of movement. While computational approaches are conceptually similar across platforms, technical differences in implementation may influence output. We present a new upper limb dynamic model as a tool to evaluate potential differences in predictive behavior between platforms. We evaluated to what extent differences in technical implementations in popular simulation software environments result in differences in kinematic predictions for single and multijoint movements using EMG- and optimization-based approaches for deriving control signals. We illustrate the benchmarking comparison using SIMM-Dynamics Pipeline-SD/Fast and OpenSim platforms. The most substantial divergence results from differences in muscle model and actuator paths. This model is a valuable resource and is available for download by other researchers. The model, data, and simulation results presented here can be used by future researchers to benchmark other software platforms and software upgrades for these two platforms. PMID:24995410

Benchmarking of dynamic simulation predictions in two software platforms using an upper limb musculoskeletal model.

PubMed

Saul, Katherine R; Hu, Xiao; Goehler, Craig M; Vidt, Meghan E; Daly, Melissa; Velisar, Anca; Murray, Wendy M

2015-01-01

Several opensource or commercially available software platforms are widely used to develop dynamic simulations of movement. While computational approaches are conceptually similar across platforms, technical differences in implementation may influence output. We present a new upper limb dynamic model as a tool to evaluate potential differences in predictive behavior between platforms. We evaluated to what extent differences in technical implementations in popular simulation software environments result in differences in kinematic predictions for single and multijoint movements using EMG- and optimization-based approaches for deriving control signals. We illustrate the benchmarking comparison using SIMM-Dynamics Pipeline-SD/Fast and OpenSim platforms. The most substantial divergence results from differences in muscle model and actuator paths. This model is a valuable resource and is available for download by other researchers. The model, data, and simulation results presented here can be used by future researchers to benchmark other software platforms and software upgrades for these two platforms.

17 CFR 37.8 - Information relating to transactions on derivatives transaction execution facilities.

Code of Federal Regulations, 2011 CFR

2011-04-01

... transactions on derivatives transaction execution facilities. 37.8 Section 37.8 Commodity and Securities Exchanges COMMODITY FUTURES TRADING COMMISSION DERIVATIVES TRANSACTION EXECUTION FACILITIES § 37.8 Information relating to transactions on derivatives transaction execution facilities. (a) Special calls for...

Emerging High School Students' Problem Solving Trajectories Based on the Use of Dynamic Software

ERIC Educational Resources Information Center

Santos-Trigo, Manuel; Cristobal-Escalante, Cesar

2008-01-01

This study documents problem solving approaches that high school students develop as a result of using systematically Cabri-Geometry software. Results show that the use of the software becomes an important tool for students to construct dynamic representations of the problems that were used to identify and examine different mathematical relations.…

Teachers' Critical Evaluations of Dynamic Geometry Software Implementation in 1:1 Classrooms

ERIC Educational Resources Information Center

Ware, Jennifer; Stein, Sarah

2014-01-01

Although the use of dynamic software in high school mathematics in the United States has emerged as a research topic, little research has been conducted on how teachers integrate new software in relation to at-home technology networks. Interviews with eight mathematics teachers from four North Carolina counties participating in 1:1 laptop…

An Analysis of Software Design Methodologies

DTIC Science & Technology

1979-08-01

L[ I + C T 8L1j~j)+ T 2M •_.P and "or" symbols , and with explicit indications of iteration. For example, Figure 5a (from Bell et al, 1977...contains a structure chart with logical "and" ("&") and ."or" ("+’) symbols . Figure 5b illustrates Jacksin’s (1977) approach, in which asterisks ("*") are...is suggested. Such a data flow graph is illustrated in Figure 14. In this case, "T" is the TRANSACTION CENTER and the "(D " symbol is used to indi

Young women's perceptions of transactional sex and sexual agency: a qualitative study in the context of rural South Africa.

PubMed

Ranganathan, Meghna; MacPhail, Catherine; Pettifor, Audrey; Kahn, Kathleen; Khoza, Nomhle; Twine, Rhian; Watts, Charlotte; Heise, Lori

2017-08-22

Evidence shows that HIV prevalence among young women in sub-Saharan Africa increases almost five-fold between ages 15 and 24, with almost a quarter of young women infected by their early-to mid-20s. Transactional sex or material exchange for sex is a relationship dynamic that has been shown to have an association with HIV infection. Using five focus group discussions and 19 in-depth interviews with young women enrolled in the HPTN 068 conditional cash transfer trial (2011-2015), this qualitative study explores young women's perceptions of transactional sex within the structural and cultural context of rural South Africa. The analysis also considers the degree to which young women perceive themselves as active agents in such relationships and whether they recognise a link between transactional sex and HIV risk. Young women believe that securing their own financial resources will ultimately improve their bargaining position in their sexual relationships, and open doors to a more financially independent future. Findings suggest there is a nuanced relationship between sex, love and gifts: money has symbolic meaning, and money transfers, when framed as gifts, indicates a young woman's value and commitment from the man. This illustrates the complexity of transactional sex; the way it is positioned in the HIV literature ignores that "exchanges" serve as fulcrums around which romantic relationships are organised. Finally, young women express agency in their choice of partner, but their agency weakens once they are in a relationship characterised by exchange, which may undermine their ability to translate perceived agency into STI and HIV risk reduction efforts. This research underscores the need to recognise that transactional sex is embedded in adolescent romantic relationships, but that certain aspects make young women particularly vulnerable to HIV. This is especially true in situations of restricted choice and circumscribed employment opportunities. HIV prevention educational programmes could be coupled with income generation trainings, in order to leverage youth resilience and protective skills within the confines of difficult economic and social circumstances. This would provide young women with the knowledge and means to more successfully navigate safer sexual relationships.

Modelling trading networks and the role of trust

NASA Astrophysics Data System (ADS)

Barrio, Rafael A.; Govezensky, Tzipe; Ruiz-Gutiérrez, Élfego; Kaski, Kimmo K.

2017-04-01

We present a simple dynamical model for describing trading interactions between agents in a social network by considering only two dynamical variables, namely money and goods or services, that are assumed conserved over the whole time span of the agents' trading transactions. A key feature of the model is that agent-to-agent transactions are governed by the price in units of money per goods, which is dynamically changing, and by a trust variable, which is related to the trading history of each agent. All agents are able to sell or buy, and the decision to do either has to do with the level of trust the buyer has in the seller, the price of the goods and the amount of money and goods at the disposal of the buyer. Here we show the results of extensive numerical calculations under various initial conditions in a random network of agents and compare the results with the available related data. In most cases the agreement between the model results and real data turns out to be fairly good, which allow us to draw some general conclusions as how different trading strategies could affect the distribution of wealth in different kinds of societies. Our calculations reveal the striking effects of trust in commercial relations, namely that trust makes trading links more robust and the wealth distribution more even as well as allows for the existence of a healthy middle class.

31 CFR 598.405 - Transactions incidental to a licensed transaction.

Code of Federal Regulations, 2013 CFR

2013-07-01

... transaction. 598.405 Section 598.405 Money and Finance: Treasury Regulations Relating to Money and Finance... REGULATIONS Interpretations § 598.405 Transactions incidental to a licensed transaction. Any transaction... transactions by specially designated narcotics traffickers and debits to accounts blocked pursuant to § 598.202...

31 CFR 598.405 - Transactions incidental to a licensed transaction.

Code of Federal Regulations, 2014 CFR

2014-07-01

... transaction. 598.405 Section 598.405 Money and Finance: Treasury Regulations Relating to Money and Finance... REGULATIONS Interpretations § 598.405 Transactions incidental to a licensed transaction. Any transaction... transactions by specially designated narcotics traffickers and debits to accounts blocked pursuant to § 598.202...

31 CFR 598.405 - Transactions incidental to a licensed transaction.

Code of Federal Regulations, 2012 CFR

2012-07-01

... transaction. 598.405 Section 598.405 Money and Finance: Treasury Regulations Relating to Money and Finance... REGULATIONS Interpretations § 598.405 Transactions incidental to a licensed transaction. Any transaction... transactions by specially designated narcotics traffickers and debits to accounts blocked pursuant to § 598.202...

31 CFR 598.405 - Transactions incidental to a licensed transaction.

Code of Federal Regulations, 2010 CFR

2010-07-01

... transaction. 598.405 Section 598.405 Money and Finance: Treasury Regulations Relating to Money and Finance... REGULATIONS Interpretations § 598.405 Transactions incidental to a licensed transaction. Any transaction... transactions by specially designated narcotics traffickers and debits to accounts blocked pursuant to § 598.202...

31 CFR 598.405 - Transactions incidental to a licensed transaction.

Code of Federal Regulations, 2011 CFR

2011-07-01

... transaction. 598.405 Section 598.405 Money and Finance: Treasury Regulations Relating to Money and Finance... REGULATIONS Interpretations § 598.405 Transactions incidental to a licensed transaction. Any transaction... transactions by specially designated narcotics traffickers and debits to accounts blocked pursuant to § 598.202...

Design and reliability analysis of DP-3 dynamic positioning control architecture

NASA Astrophysics Data System (ADS)

Wang, Fang; Wan, Lei; Jiang, Da-Peng; Xu, Yu-Ru

2011-12-01

As the exploration and exploitation of oil and gas proliferate throughout deepwater area, the requirements on the reliability of dynamic positioning system become increasingly stringent. The control objective ensuring safety operation at deep water will not be met by a single controller for dynamic positioning. In order to increase the availability and reliability of dynamic positioning control system, the triple redundancy hardware and software control architectures were designed and developed according to the safe specifications of DP-3 classification notation for dynamically positioned ships and rigs. The hardware redundant configuration takes the form of triple-redundant hot standby configuration including three identical operator stations and three real-time control computers which connect each other through dual networks. The function of motion control and redundancy management of control computers were implemented by software on the real-time operating system VxWorks. The software realization of task loose synchronization, majority voting and fault detection were presented in details. A hierarchical software architecture was planed during the development of software, consisting of application layer, real-time layer and physical layer. The behavior of the DP-3 dynamic positioning control system was modeled by a Markov model to analyze its reliability. The effects of variation in parameters on the reliability measures were investigated. The time domain dynamic simulation was carried out on a deepwater drilling rig to prove the feasibility of the proposed control architecture.

Musing on the Use of Dynamic Software and Mathematics Epistemology

ERIC Educational Resources Information Center

Santos-Trigo, Manuel; Reyes-Rodriguez, Aaron; Espinosa-Perez, Hugo

2007-01-01

Different computational tools may offer teachers and students distinct opportunities in representing, exploring and solving mathematical tasks. In this context, we illustrate that the use of dynamic software (Cabri Geometry) helped high school teachers to think of and represent a particular task dynamically. In this process, the teachers had the…

Prompting Teacher Geometric Reasoning through Coaching in a Dynamic Geometry Software Context

ERIC Educational Resources Information Center

Knapp, Andrea K.; Barrett, Jeffrey E.; Moore, Cynthia J.

2016-01-01

This study investigated the ways in which four middle grades teachers developed mathematical knowledge for teaching (MKT) geometry as they implemented dynamic geometry software in their classrooms with the assistance of a coach. Teachers developed various components of MKT by observing coaches teach, by dynamic discourse with students, which is…

A Graphical User Interface for Software-assisted Tracking of Protein Concentration in Dynamic Cellular Protrusions.

PubMed

Saha, Tanumoy; Rathmann, Isabel; Galic, Milos

2017-07-11

Filopodia are dynamic, finger-like cellular protrusions associated with migration and cell-cell communication. In order to better understand the complex signaling mechanisms underlying filopodial initiation, elongation and subsequent stabilization or retraction, it is crucial to determine the spatio-temporal protein activity in these dynamic structures. To analyze protein function in filopodia, we recently developed a semi-automated tracking algorithm that adapts to filopodial shape-changes, thus allowing parallel analysis of protrusion dynamics and relative protein concentration along the whole filopodial length. Here, we present a detailed step-by-step protocol for optimized cell handling, image acquisition and software analysis. We further provide instructions for the use of optional features during image analysis and data representation, as well as troubleshooting guidelines for all critical steps along the way. Finally, we also include a comparison of the described image analysis software with other programs available for filopodia quantification. Together, the presented protocol provides a framework for accurate analysis of protein dynamics in filopodial protrusions using image analysis software.

Orbit determination software development for microprocessor based systems: Evaluation and recommendations

NASA Technical Reports Server (NTRS)

Shenitz, C. M.; Mcgarry, F. E.; Tasaki, K. K.

1980-01-01

A guide is presented for National Aeronautics and Space Administration management personnel who stand to benefit from the lessons learned in developing microprocessor-based flight dynamics software systems. The essential functional characteristics of microprocessors are presented. The relevant areas of system support software are examined, as are the distinguishing characteristics of flight dynamics software. Design examples are provided to illustrate the major points presented, and actual development experience obtained in this area is provided as evidence to support the conclusions reached.

Views of Pre-Service Teachers Following Teaching Experience on Use of Dynamic Geometry Software

ERIC Educational Resources Information Center

Günes, Kardelen; Tapan-Broutin, Menekse Seden

2017-01-01

The study aims to determine the views of final-year pre-service mathematics teachers towards their experience of the use of dynamic geometry software in teaching, following the implementation processes that they carried out when using this software in a real classroom environment. The study was designed as a case study, which is one of the…

76 FR 4747 - Proposed Collection; Comment Request; Bank Secrecy Act Unified Currency Transaction Report...

Federal Register 2010, 2011, 2012, 2013, 2014

2011-01-26

... transitions from a system originally designed for collecting paper forms to a modernized IT environment for... of CTRs under the BSA. The CTR will be an e- filed dynamic and interactive report used by all BSA... System of Records Notice relating to BSA Reports.\\3\\ \\3\\ Department of the Treasury bureaus such as Fin...

Social Presence and Transactional Distance as an Antecedent to Knowledge Sharing in Virtual Learning Communities

ERIC Educational Resources Information Center

Karaoglan Yilmaz, Fatma Gizem

2017-01-01

Today, the use of social network-based virtual learning communities is increasing rapidly in terms of knowledge management. An important dynamic of knowledge management processes is the knowledge sharing behaviors (KSB) in community. The purpose of this study is to examine the KSB of the students in a Facebook-based virtual community created…

Optimization-Based Robust Nonlinear Control

DTIC Science & Technology

2006-08-01

ABSTRACT New control algorithms were developed for robust stabilization of nonlinear dynamical systems . Novel, linear matrix inequality-based synthesis...was to further advance optimization-based robust nonlinear control design, for general nonlinear systems (especially in discrete time ), for linear...Teel, IEEE Transactions on Control Systems Technology, vol. 14, no. 3, p. 398-407, May 2006. 3. "A unified framework for input-to-state stability in

Incentives for vertical integration in healthcare: the effect of reimbursement systems.

PubMed

Byrne, M M; Ashton, C M

1999-01-01

In the United States, many healthcare organizations are being transformed into large integrated delivery systems, even though currently available empirical evidence does not provide strong or unequivocal support for or against vertical integration. Unfortunately, the manager cannot delay organizational changes until further research has been completed, especially when further research is not likely to reveal a single, correct solution for the diverse healthcare systems in existence. Managers must therefore carefully evaluate the expected effects of integration on their individual organizations. Vertical integration may be appropriate if conditions facing the healthcare organization provide opportunities for efficiency gains through reorganization strategies. Managers must consider (1) how changes in the healthcare market have affected the dynamics of production efficiency and transaction costs; (2) the likelihood that integration strategies will achieve increases in efficiency or reductions in transaction costs; and (3) how vertical integration will affect other costs, and whether the benefits gained will outweigh additional costs and efficiency losses. This article presents reimbursement systems as an example of how recent changes in the industry may have changed the dynamics and efficiency of production. Evaluation of the effects of vertical integration should allow for reasonable adjustment time, but obviously unsuccessful strategies should not be followed or maintained.

Transactional Relations Between Marital Functioning and Depressive Symptoms

PubMed Central

Kouros, Chrystyna D.; Cummings, E. Mark

2012-01-01

The present study investigated dynamic, longitudinal associations between depressive symptoms and marital processes. Two hundred ninety-six couples reported on marital satisfaction, marital conflict, and depressive symptoms yearly for three years. Observational measures of marital conflict were also collected. Results suggested that different domains of marital functioning related to husbands’ versus wives’ symptoms. For husbands, transactional relations between marital satisfaction and depressive symptoms were identified: high levels of depressive symptoms predicted subsequent decreases in marital satisfaction, and decreased marital satisfaction predicted subsequent elevations in symptoms over time. For wives, high levels of marital conflict predicted subsequent elevations in symptoms over time. Cross-partner results indicated that husbands’ depressive symptoms were also related to subsequent declines in wives’ marital satisfaction. Results are discussed with regard to theoretical perspectives on the marital functioning-depression link and directions for future research are outlined. PMID:21219284

Understanding links between punitive parenting and adolescent adjustment: The relevance of context and reciprocal associations.

PubMed

Roche, Kathleen M; Ghazarian, Sharon R; Little, Todd D; Leventhal, Tama

2011-06-01

There is considerable debate regarding the extent to which punitive parenting adversely impacts youth well being. Using an ecological-transactional model of human development, we examined reciprocity and contextual variability in associations between maternal punitive discipline and adolescent adjustment among 1,147 low-income, urban youth followed through adolescence. Longitudinal SEM results indicated that delinquency and depressive symptoms during pre- and early adolescence (Time 1) were associated with increased punitive discipline about a year later (Time 2). When mothers reported less Time 2 neighborhood disorder, punitive discipline at Time 2 was associated with increased delinquency (for boys) and depressive symptoms (for girls) during mid- to late adolescence (Time 3). The costs of punitive discipline for adolescent adjustment are best understood considering the dynamic, transactional, and contextual nature of development.

Understanding links between punitive parenting and adolescent adjustment: The relevance of context and reciprocal associations

PubMed Central

Roche, Kathleen M.; Ghazarian, Sharon R.; Little, Todd D.; Leventhal, Tama

2010-01-01

There is considerable debate regarding the extent to which punitive parenting adversely impacts youth well being. Using an ecological-transactional model of human development, we examined reciprocity and contextual variability in associations between maternal punitive discipline and adolescent adjustment among 1,147 low-income, urban youth followed through adolescence. Longitudinal SEM results indicated that delinquency and depressive symptoms during pre- and early adolescence (Time 1) were associated with increased punitive discipline about a year later (Time 2). When mothers reported less Time 2 neighborhood disorder, punitive discipline at Time 2 was associated with increased delinquency (for boys) and depressive symptoms (for girls) during mid- to late adolescence (Time 3). The costs of punitive discipline for adolescent adjustment are best understood considering the dynamic, transactional, and contextual nature of development. PMID:21647241

An Integrative View of School Functioning: Transactions between Self-Regulation, School Engagement, and Teacher-Child Relationship Quality

PubMed Central

Portilla, Ximena A.; Ballard, Parissa J.; Adler, Nancy E.; Boyce, W. Thomas; Obradović, Jelena

2014-01-01

This study investigates the dynamic interplay between teacher-child relationship quality and children’s behaviors across kindergarten and first grade to predict academic competence in first grade. Using a sample of 338 ethnically diverse 5-year-old children, nested path analytic models were conducted to examine bidirectional pathways between children’s behaviors and teacher-child relationship quality. Low self-regulation in kindergarten fall, as indexed by inattention and impulsive behaviors, predicted more conflict with teachers in kindergarten spring and this effect persisted into first grade. Conflict and low self-regulation jointly predicted decreases in school engagement which in turn predicted first grade academic competence. Findings illustrate the importance of considering transactions between self-regulation, teacher-child relationship quality, and school engagement in predicting academic competence. PMID:24916608

Land and Law in Marijuana Country: Clean Capital, Dirty Money, and the Drug War's Rentier Nexus.

PubMed

Polson, Michael

2013-11-01

Despite its ongoing federal illegality, marijuana production has become a licit, or socially accepted, feature of northern California's real estate market. As such, marijuana is a key component of land values and the laundering of "illegal" wealth into legitimate circulation. By following land transaction practices, relations, and instruments, this article shows how formally equal property transactions become substantively unequal in light of the "il/legal" dynamics of marijuana land use. As marijuana becomes licit, prohibitionist policies have enabled the capture of ground rent by landed interests from the marijuana industry at a time when the price of marijuana is declining (in part due to its increasing licitness). The resulting "drug war rentier nexus," a state-land-finance complex, is becoming a key, if obscured, component within marijuana's contemporary political economy.

Substructured multibody molecular dynamics.

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

Grest, Gary Stephen; Stevens, Mark Jackson; Plimpton, Steven James

2006-11-01

We have enhanced our parallel molecular dynamics (MD) simulation software LAMMPS (Large-scale Atomic/Molecular Massively Parallel Simulator, lammps.sandia.gov) to include many new features for accelerated simulation including articulated rigid body dynamics via coupling to the Rensselaer Polytechnic Institute code POEMS (Parallelizable Open-source Efficient Multibody Software). We use new features of the LAMMPS software package to investigate rhodopsin photoisomerization, and water model surface tension and capillary waves at the vapor-liquid interface. Finally, we motivate the recipes of MD for practitioners and researchers in numerical analysis and computational mechanics.

Watershed-based point sources permitting strategy and dynamic permit-trading analysis.

PubMed

Ning, Shu-Kuang; Chang, Ni-Bin

2007-09-01

Permit-trading policy in a total maximum daily load (TMDL) program may provide an additional avenue to produce environmental benefit, which closely approximates what would be achieved through a command and control approach, with relatively lower costs. One of the important considerations that might affect the effective trading mechanism is to determine the dynamic transaction prices and trading ratios in response to seasonal changes of assimilative capacity in the river. Advanced studies associated with multi-temporal spatially varied trading ratios among point sources to manage water pollution hold considerable potential for industries and policy makers alike. This paper aims to present an integrated simulation and optimization analysis for generating spatially varied trading ratios and evaluating seasonal transaction prices accordingly. It is designed to configure a permit-trading structure basin-wide and provide decision makers with a wealth of cost-effective, technology-oriented, risk-informed, and community-based management strategies. The case study, seamlessly integrating a QUAL2E simulation model with an optimal waste load allocation (WLA) scheme in a designated TMDL study area, helps understand the complexity of varying environmental resources values over space and time. The pollutants of concern in this region, which are eligible for trading, mainly include both biochemical oxygen demand (BOD) and ammonia-nitrogen (NH3-N). The problem solution, as a consequence, suggests an array of waste load reduction targets in a well-defined WLA scheme and exhibits a dynamic permit-trading framework among different sub-watersheds in the study area. Research findings gained in this paper may extend to any transferable dynamic-discharge permit (TDDP) program worldwide.

Dynamic Modelling with "MLE-Energy Dynamic" for Primary School

NASA Astrophysics Data System (ADS)

Giliberti, Enrico; Corni, Federico

During the recent years simulation and modelling are growing instances in science education. In primary school, however, the main use of software is the simulation, due to the lack of modelling software tools specially designed to fit/accomplish the needs of primary education. In particular primary school teachers need to use simulation in a framework that is both consistent and simple enough to be understandable by children [2]. One of the possible area to approach modelling is about the construction of the concept of energy, in particular for what concerns the relations among substance, potential, power [3]. Following the previous initial research results with this approach [2], and with the static version of the software MLE Energy [1], we suggest the design and the experimentation of a dynamic modelling software—MLE dynamic-capable to represent dynamically the relations occurring when two substance-like quantities exchange energy, modifying their potential. By means of this software the user can graphically choose the dependent and independent variables and leave the other parameters fixed. The software has been initially evaluated, during a course of science education with a group of primary school teachers-to-be, to test the ability of the software to improve teachers' way of thinking in terms of substance-like quantities and their effects (graphical representation of the extensive, intensive variables and their mutual relations); moreover, the software has been tested with a group of primary school teachers, asking their opinion about the software didactical relevance in the class work.

An approach to software cost estimation

NASA Technical Reports Server (NTRS)

Mcgarry, F.; Page, J.; Card, D.; Rohleder, M.; Church, V.

1984-01-01

A general procedure for software cost estimation in any environment is outlined. The basic concepts of work and effort estimation are explained, some popular resource estimation models are reviewed, and the accuracy of source estimates is discussed. A software cost prediction procedure based on the experiences of the Software Engineering Laboratory in the flight dynamics area and incorporating management expertise, cost models, and historical data is described. The sources of information and relevant parameters available during each phase of the software life cycle are identified. The methodology suggested incorporates these elements into a customized management tool for software cost prediction. Detailed guidelines for estimation in the flight dynamics environment developed using this methodology are presented.

Dynamic interrogative data capture (DIDC) : concept of operations.

DOT National Transportation Integrated Search

2016-04-01

This Concept of Operations (ConOps) describes the characteristics of the Dynamic Interrogative Data Capture (DIDC) algorithms and associated software. The objective of the DIDC algorithms and software is to optimize the capture and transmission of ve...

“Because he has bought for her, he wants to sleep with her”: Alcohol as a currency for sexual exchange in South African drinking venues

PubMed Central

Watt, Melissa H.; Aunon, Frances M.; Skinner, Donald; Sikkema, Kathleen J.; Kalichman, Seth C.; Pieterse, Desiree

2012-01-01

Previous research has documented the practice of transactional sex in sub-Saharan Africa and its association with gender-based violence, gender inequalities and HIV risk. At the same time, it has been suggested that women may use transactional sex to obtain a greater sense of control over their lives and their sexualities, and to garner access to resources. The aim of this study was to better understand the practice of exchanging alcohol for sex in alcohol-serving venues in a township in Cape Town, South Africa. Data were collected between June 2009 and October 2010. Six venues were included and observations were conducted in each for four one-week periods over the course of a year. In-depth qualitative interviews included 31 women and 13 men whom interviewers had observed as regular venue customers. Follow-up interviews were conducted with 24 respondents to explore emerging themes. Interviews were recorded and transcribed. Using a grounded theory approach, Atlas.ti was used to code transcripts, field notes, and analytical memos written about each document. Results revealed that alcohol was commonly used as a currency of sexual exchange in this setting, and both women and men understood that accepting alcohol from a man implied consent for sexual favors. Women reported a sense of agency in participating in the transactional sex dynamic, especially when they were able to manipulate it to meet their own ends without fulfilling the men’s sexual expectations. At the same time, data revealed that the norm of transactional sex reinforced the undervaluing and commoditization of women. As identified elsewhere, transactional sex put both women and men at greater risk of HIV through multiple partners and inconsistent use of condoms, and the possibility of rape. Interventions are needed to address sexual risk behaviors and substance use within this context to prevent new HIV infections. PMID:22326304

Photo-Pictures and Dynamic Software or about the Motivation of the Art-Oriented Students

ERIC Educational Resources Information Center

Chehlarova, Toni; Chehlarova, Koya

2014-01-01

This paper deals with ideas about dynamic presentation of photo-pictures by means of dynamic software GeoGebra in order to motivate art students to get acquainted with some specific mathematical functions. The results of the experiment include deeper understanding of the functions' nature, search of new functions for dealing with a practical…

An Analysis of How and Why High School Geometry Teachers Implement Dynamic Geometry Software Tasks for Student Engagement

ERIC Educational Resources Information Center

Nirode, Wayne

2012-01-01

This study examined teachers' use of student tasks involving dynamic geometry software, in which a figure is constructed then altered while maintaining its constructed properties. Although researchers, professional organizations, and policy makers generally have been proponents of dynamic geometry for instruction, there is little research about…

12 CFR 303.62 - Transactions requiring prior approval.

Code of Federal Regulations, 2010 CFR

2010-01-01

... merger transaction that consists of the acquisition by an out of state bank of a branch without... FILING PROCEDURES Merger Transactions § 303.62 Transactions requiring prior approval. (a) Merger transactions. The following merger transactions require the prior written approval of the FDIC under this...

Research on Generating Method of Embedded Software Test Document Based on Dynamic Model

NASA Astrophysics Data System (ADS)

Qu, MingCheng; Wu, XiangHu; Tao, YongChao; Liu, Ying

2018-03-01

This paper provides a dynamic model-based test document generation method for embedded software that provides automatic generation of two documents: test requirements specification documentation and configuration item test documentation. This method enables dynamic test requirements to be implemented in dynamic models, enabling dynamic test demand tracking to be easily generated; able to automatically generate standardized, standardized test requirements and test documentation, improved document-related content inconsistency and lack of integrity And other issues, improve the efficiency.

Research a Novel Integrated and Dynamic Multi-object Trade-Off Mechanism in Software Project

NASA Astrophysics Data System (ADS)

Jiang, Weijin; Xu, Yuhui

Aiming at practical requirements of present software project management and control, the paper presented to construct integrated multi-object trade-off model based on software project process management, so as to actualize integrated and dynamic trade-oil of the multi-object system of project. Based on analyzing basic principle of dynamic controlling and integrated multi-object trade-off system process, the paper integrated method of cybernetics and network technology, through monitoring on some critical reference points according to the control objects, emphatically discussed the integrated and dynamic multi- object trade-off model and corresponding rules and mechanism in order to realize integration of process management and trade-off of multi-object system.

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

Melton, Ron

The Pacific Northwest Smart Grid Demonstration (PNWSGD), a $179 million project that was co-funded by the U.S. Department of Energy (DOE) in late 2009, was one of the largest and most comprehensive demonstrations of electricity grid modernization ever completed. The project was one of 16 regional smart grid demonstrations funded by the American Recovery and Reinvestment Act. It was the only demonstration that included multiple states and cooperation from multiple electric utilities, including rural electric co-ops, investor-owned, municipal, and other public utilities. No fewer than 55 unique instantiations of distinct smart grid systems were demonstrated at the projects’ sites. Themore » local objectives for these systems included improved reliability, energy conservation, improved efficiency, and demand responsiveness. The demonstration developed and deployed an innovative transactive system, unique in the world, that coordinated many of the project’s distributed energy resources and demand-responsive components. With the transactive system, additional regional objectives were also addressed, including the mitigation of renewable energy intermittency and the flattening of system load. Using the transactive system, the project coordinated a regional response across the 11 utilities. This region-wide connection from the transmission system down to individual premises equipment was one of the major successes of the project. The project showed that this can be done and assets at the end points can respond dynamically on a wide scale. In principle, a transactive system of this type might eventually help coordinate electricity supply, transmission, distribution, and end uses by distributing mostly automated control responsibilities among the many distributed smart grid domain members and their smart devices.« less

Stability analysis using SDSA tool

NASA Astrophysics Data System (ADS)

Goetzendorf-Grabowski, Tomasz; Mieszalski, Dawid; Marcinkiewicz, Ewa

2011-11-01

The SDSA (Simulation and Dynamic Stability Analysis) application is presented as a tool for analysing the dynamic characteristics of the aircraft just in the conceptual design stage. SDSA is part of the CEASIOM (Computerized Environment for Aircraft Synthesis and Integrated Optimization Methods) software environment which was developed within the SimSAC (Simulating Aircraft Stability And Control Characteristics for Use in Conceptual Design) project, funded by the European Commission 6th Framework Program. SDSA can also be used as stand alone software, and integrated with other design and optimisation systems using software wrappers. This paper focuses on the main functionalities of SDSA and presents both computational and free flight experimental results to compare and validate the presented software. Two aircraft are considered, the EADS Ranger 2000 and the Warsaw University designed PW-6 glider. For the two cases considered here the SDSA software is shown to be an excellent tool for predicting dynamic characteristics of an aircraft.

CONTIN XPCS: Software for Inverse Transform Analysis of X-Ray Photon Correlation Spectroscopy Dynamics

PubMed Central

Narayanan, Suresh; Zhang, Fan; Kuzmenko, Ivan; Ilavsky, Jan

2018-01-01

X-ray photon correlation spectroscopy (XPCS) and dynamic light scattering (DLS) both reveal dynamics using coherent scattering, but X-rays permit investigating of dynamics in a much more diverse array of materials. Heterogeneous dynamics occur in many such materials, and we showed how classic tools employed in analysis of heterogeneous DLS dynamics extend to XPCS, revealing additional information that conventional Kohlrausch exponential fitting obscures. This work presents the software implementation of inverse transform analysis of XPCS data called CONTIN XPCS, an extension of traditional CONTIN that accommodates dynamics encountered in equilibrium XPCS measurements. PMID:29875507

CONTIN XPCS: Software for Inverse Transform Analysis of X-Ray Photon Correlation Spectroscopy Dynamics.

PubMed

Andrews, Ross N; Narayanan, Suresh; Zhang, Fan; Kuzmenko, Ivan; Ilavsky, Jan

2018-02-01

X-ray photon correlation spectroscopy (XPCS) and dynamic light scattering (DLS) both reveal dynamics using coherent scattering, but X-rays permit investigating of dynamics in a much more diverse array of materials. Heterogeneous dynamics occur in many such materials, and we showed how classic tools employed in analysis of heterogeneous DLS dynamics extend to XPCS, revealing additional information that conventional Kohlrausch exponential fitting obscures. This work presents the software implementation of inverse transform analysis of XPCS data called CONTIN XPCS, an extension of traditional CONTIN that accommodates dynamics encountered in equilibrium XPCS measurements.

Ndarts

NASA Technical Reports Server (NTRS)

Jain, Abhinandan

2011-01-01

Ndarts software provides algorithms for computing quantities associated with the dynamics of articulated, rigid-link, multibody systems. It is designed as a general-purpose dynamics library that can be used for the modeling of robotic platforms, space vehicles, molecular dynamics, and other such applications. The architecture and algorithms in Ndarts are based on the Spatial Operator Algebra (SOA) theory for computational multibody and robot dynamics developed at JPL. It uses minimal, internal coordinate models. The algorithms are low-order, recursive scatter/ gather algorithms. In comparison with the earlier Darts++ software, this version has a more general and cleaner design needed to support a larger class of computational dynamics needs. It includes a frames infrastructure, allows algorithms to operate on subgraphs of the system, and implements lazy and deferred computation for better efficiency. Dynamics modeling modules such as Ndarts are core building blocks of control and simulation software for space, robotic, mechanism, bio-molecular, and material systems modeling.

Grasping objects autonomously in simulated KC-135 zero-g

NASA Technical Reports Server (NTRS)

Norsworthy, Robert S.

1994-01-01

The KC-135 aircraft was chosen for simulated zero gravity testing of the Extravehicular Activity Helper/retriever (EVAHR). A software simulation of the EVAHR hardware, KC-135 flight dynamics, collision detection and grasp inpact dynamics has been developed to integrate and test the EVAHR software prior to flight testing on the KC-135. The EVAHR software will perform target pose estimation, tracking, and motion estimation for rigid, freely rotating, polyhedral objects. Manipulator grasp planning and trajectory control software has also been developed to grasp targets while avoiding collisions.

Bigger Data, Collaborative Tools and the Future of Predictive Drug Discovery

PubMed Central

Clark, Alex M.; Swamidass, S. Joshua; Litterman, Nadia; Williams, Antony J.

2014-01-01

Over the past decade we have seen a growth in the provision of chemistry data and cheminformatics tools as either free websites or software as a service (SaaS) commercial offerings. These have transformed how we find molecule-related data and use such tools in our research. There have also been efforts to improve collaboration between researchers either openly or through secure transactions using commercial tools. A major challenge in the future will be how such databases and software approaches handle larger amounts of data as it accumulates from high throughput screening and enables the user to draw insights, enable predictions and move projects forward. We now discuss how information from some drug discovery datasets can be made more accessible and how privacy of data should not overwhelm the desire to share it at an appropriate time with collaborators. We also discuss additional software tools that could be made available and provide our thoughts on the future of predictive drug discovery in this age of big data. We use some examples from our own research on neglected diseases, collaborations, mobile apps and algorithm development to illustrate these ideas. PMID:24943138

78 FR 10228 - Self-Regulatory Organizations; Chicago Board Options Exchange, Incorporated; Notice of Filing and...

Federal Register 2010, 2011, 2012, 2013, 2014

2013-02-13

... transaction fee for XSP index options. Currently, the Exchange has a $0.18 customer transaction fee per... customer transaction fees for transactions in XSP index options. Eliminating the customer transaction fee... opportunity to pay lower fees for such transactions and provide greater incentives for customers to trade XSP...

Consumer's Buying Decision-Making Process in E-Commerce

NASA Astrophysics Data System (ADS)

Puspitasari, Nia Budi; Susatyo, Nugroho W. P.; Amyhorsea, Deya Nilan; Susanty, Aries

2018-02-01

The e-commerce growth and development in Indonesia is very rapid as well as the internet grows, but it is not well-balanced with the number of online buying transaction which is still relatively low. Even the today's biggest B2C e-commerce people in Indonesia, Lazada, has continually decreased online purchasing. This research is aimed to describe factors affecting online buying decision- making in the e-commerce Lazada. The type of this research is confirmatory research. The variable used is following conceptual model i.e. Electronic Word of Mouth (EWOM), social identity, risk perception, trust, and purchase intention. The data were obtained through the questionnaire with Likert scale 1-5. There are 104 people researching sample who meets the criteria as Lazada consumer that, at least do a transaction in recent six months. Data analyzing were done using Structural Equation Modelling (SEM) method by Analysis of Moment Structures (AMOS) software. The results showed that the purchase intention has positively related to the purchase decision. Variable EWOM toward trust has positive relation, variable social identity and risk perception have no any significant relation to trust. Variable risk perception toward purchase intention has no significant relation, while the variable trust has significant positive relation to purchase intention.

Employee Involvement: The Competitive Edge. Transactions of the IAQC Annual Conference and Resource Mart (9th, New Orleans, Louisiana, April 6-9, 1987).

ERIC Educational Resources Information Center

Association for Quality and Participation, Cincinnati, OH.

Among the 96 papers presented at this conference are the following: "Team Building Techniques that Get Results" (Berg); "The Subtleties of Communication in Small Group Meetings" (Henry); "Feedback--Its Role in Team Building" (Lucas); "Group Dynamics--Success through Interaction" (Manning, Johnson); "The Able-Bodied Handicapped: Bridging the Gap"…

A Transactional Approach to Children's Learning in a Knowledge-Based Society.

ERIC Educational Resources Information Center

Seng, Seok-Hoon

The 21st century promises to make very different demands on our children and schools in a knowledge-based society. A slow but dynamic shift has been occurring in the Singapore educational system toward a learning nation and thinking school ethos. In the midst of this change, children will need to acquire a new set of skills. They will need to be…

Leadership in Education Abroad Office: A Case Study Based on the Interactional Framework of Leadership and the Transformational-Transactional Leadership Theory

ERIC Educational Resources Information Center

Deng, Jie

2017-01-01

This case study explored the unique context and dynamics of leadership in an education abroad office. The focus was on how leadership took place in the synergistic interactions among the leader, the followers, and specific situations in such an office. Interviews, observations, and document review were used to collect data. Hughes, Ginnett, and…

Implementation and Analysis of the use of the Blockchain Transactions on the Workings of the Bitcoin

NASA Astrophysics Data System (ADS)

Rizky Fauzi, Muhammad Reza; Michrandi Nasution, Surya; Paryasto, Marisa W.

2017-11-01

The present study discusses the workings of blockchain bitcoin in the transactions sector, on the development of today’s emerging computers in the financial sector of blockchain bitcoin traction. In this case the author analyzes how the transaction is running, as well as how blockchain bitcoin is doing work in transactions on the system to make transactions. Transaction is a data structure that encodes the transfer of values between users with in a bitcoin system. Every transaction is a public entry in this bitcoin blockchain. And become a large transaction bookkeeping global.

5 CFR 919.205 - Why is it important if a particular transaction is a covered transaction?

Code of Federal Regulations, 2010 CFR

2010-01-01

... 5 Administrative Personnel 2 2010-01-01 2010-01-01 false Why is it important if a particular transaction is a covered transaction? 919.205 Section 919.205 Administrative Personnel OFFICE OF PERSONNEL... (NONPROCUREMENT) Covered Transactions § 919.205 Why is it important if a particular transaction is a covered...

User Interface Design for Dynamic Geometry Software

ERIC Educational Resources Information Center

Kortenkamp, Ulrich; Dohrmann, Christian

2010-01-01

In this article we describe long-standing user interface issues with Dynamic Geometry Software and common approaches to address them. We describe first prototypes of multi-touch-capable DGS. We also give some hints on the educational benefits of proper user interface design.

Developmental Relations Among Motor and Cognitive Processes and Mathematics Skills.

PubMed

Kim, Helyn; Duran, Chelsea A K; Cameron, Claire E; Grissmer, David

2018-03-01

This study explored transactional associations among visuomotor integration, attention, fine motor coordination, and mathematics skills in a diverse sample of one hundred thirty-five 5-year-olds (kindergarteners) and one hundred nineteen 6-year-olds (first graders) in the United States who were followed over the course of 2 school years. Associations were dynamic, with more reciprocal transactions occurring in kindergarten than in the later grades. Specifically, visuomotor integration and mathematics exhibited ongoing reciprocity in kindergarten and first grade, attention contributed to mathematics in kindergarten and first grade, mathematics contributed to attention across the kindergarten year only, and fine motor coordination contributed to mathematics indirectly, through visuomotor integration, across kindergarten and first grade. Implications of examining the hierarchical interrelations among processes underlying the development of children's mathematics skills are discussed. © 2017 The Authors. Child Development © 2017 Society for Research in Child Development, Inc.

A Machine Learning Approach for Business Intelligence Analysis using Commercial Shipping Transaction Data

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

Bramer, Lisa M.; Chatterjee, Samrat; Holmes, Aimee E.

Business intelligence problems are particularly challenging due to the use of large volume and high velocity data in attempts to model and explain complex underlying phenomena. Incremental machine learning based approaches for summarizing trends and identifying anomalous behavior are often desirable in such conditions to assist domain experts in characterizing their data. The overall goal of this research is to develop a machine learning algorithm that enables predictive analysis on streaming data, detects changes and anomalies in the data, and can evolve based on the dynamic behavior of the data. Commercial shipping transaction data for the U.S. is used tomore » develop and test a Naïve Bayes model that classifies several companies into lines of businesses and demonstrates an ability to predict when the behavior of these companies changes by venturing into other lines of businesses.« less

Transactions between child social wariness and observed structured parenting: evidence from a prospective adoption study.

PubMed

Natsuaki, Misaki N; Leve, Leslie D; Harold, Gordon T; Neiderhiser, Jenae M; Shaw, Daniel S; Ganiban, Jody; Scaramella, Laura V; Reiss, David

2013-01-01

This investigation examined the mutual influences between structured parenting and child social wariness during toddlerhood using a longitudinal adoption design. The sample consisted of 361 adoption-linked families, each including an adopted child, adoptive parents, and a birth mother. Heightened social wariness in children at age 18 months predicted reduced levels of observed structured parenting (i.e., less directive parenting with fewer commands and requests) in adoptive mothers at age 27 months. Adoptive fathers' lower structured parenting at age 18 months predicted subsequent elevation in child social wariness. Birth mothers' history of fear-related anxiety disorders was not associated with child social wariness. Findings highlight the role of dynamic family transactions in the development of social wariness during toddlerhood. © 2013 The Authors. Child Development © 2013 Society for Research in Child Development, Inc.

Land and Law in Marijuana Country: Clean Capital, Dirty Money, and the Drug War’s Rentier Nexus

PubMed Central

Polson, Michael

2015-01-01

Despite its ongoing federal illegality, marijuana production has become a licit, or socially accepted, feature of northern California’s real estate market. As such, marijuana is a key component of land values and the laundering of “illegal” wealth into legitimate circulation. By following land transaction practices, relations, and instruments, this article shows how formally equal property transactions become substantively unequal in light of the “il/legal” dynamics of marijuana land use. As marijuana becomes licit, prohibitionist policies have enabled the capture of ground rent by landed interests from the marijuana industry at a time when the price of marijuana is declining (in part due to its increasing licitness). The resulting “drug war rentier nexus,” a state–land–finance complex, is becoming a key, if obscured, component within marijuana’s contemporary political economy. PMID:26594104

BTFS: The Border Trade Facilitation System

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

Phillips, L.R.

The author demonstrates the Border Trade Facilitation System (BTFS), an agent-based bilingual e-commerce system built to expedite the regulation, control, and execution of commercial trans-border shipments during the delivery phase. The system was built to serve maquila industries at the US/Mexican border. The BTFS uses foundation technology developed here at Sandia Laboratories' Advanced Information Systems Lab (AISL), including a distributed object substrate, a general-purpose agent development framework, dynamically generated agent-human interaction via the World-Wide Web, and a collaborative agent architecture. This technology is also the substrate for the Multi-Agent Simulation Management System (MASMAS) proposed for demonstration at this conference. Themore » BTFS executes authenticated transactions among agents performing open trading over the Internet. With the BTFS in place, one could conduct secure international transactions from any site with an Internet connection and a web browser. The BTFS is currently being evaluated for commercialization.« less

Transactional sex risk across a typology of rural and urban female sex workers in Indonesia: a mixed methods study.

PubMed

Puradiredja, Dewi Ismajani; Coast, Ernestina

2012-01-01

Context-specific typologies of female sex workers (FSWs) are essential for the design of HIV intervention programming. This study develops a novel FSW typology for the analysis of transactional sex risk in rural and urban settings in Indonesia. Mixed methods include a survey of rural and urban FSWs (n=310), in-depth interviews (n=11), key informant interviews (n=5) and ethnographic assessments. Thematic analysis categorises FSWs into 5 distinct groups based on geographical location of their sex work settings, place of solicitation, and whether sex work is their primary occupation. Multiple regression analysis shows that the likelihood of consistent condom use was higher among urban venue-based FSWs for whom sex work is not the only source of income than for any of the other rural and urban FSW groups. This effect was explained by the significantly lower likelihood of consistent condom use by rural venue-based FSWs (adjusted OR: 0.34 95% CI 0.13-0.90, p=0.029). The FSW typology and differences in organisational features and social dynamics are more closely related to the risk of unprotected transactional sex, than levels of condom awareness and availability. Interventions need context-specific strategies to reach the different FSWs identified by this study's typology.

Development of protected endorsement for online banking using mobile phones

NASA Astrophysics Data System (ADS)

Narayana, Galla; Venkateswarlu, Tammineni; Kumar, G. S. P.; Padmavathamma, Mokkala; Sreekanth, G.; Delhibabu, K.; Prasad, A. R.

2013-03-01

Securing Online Banking transactions for customer is the primary goal of financial institutions that provides Internet banking facility. Mobile phones play an important role in our society as more and more functions having been integrated within mobile phones, such as Internet browsing, mobile banking, and shopping. Mobiles phones can be used to secure ATM card pins by sending to the customer directly rather than in emails or by other means which has a possibility of hacking. In this paper we have proposed method of generating a Private Key Security Token by bank authentication servers which uses IMSI registers and IMEI number of client's mobile registered. The key is generated by implementing RIPE MD160 and Hex Encode Algorithm. Token received is valid only for that client mobile only and can be generated upon request by customer dynamically. The client is given a PIN and a Master Key when registered to the Online Banking Services. If in case a client's mobile is lost, authentication is done using Unique Master Key, else the Private Key Token is used there by making transactions secured and simple without the need of carrying any USB Tokens. The additional functionality provides the client more security on their transactions. Due to this Phishing attacks by the hackers is avoided.

The Scientific Uplink and User Support System for SIRTF

NASA Astrophysics Data System (ADS)

Heinrichsen, I.; Chavez, J.; Hartley, B.; Mei, Y.; Potts, S.; Roby, T.; Turek, G.; Valjavec, E.; Wu, X.

The Space Infrared Telescope Facility (SIRTF) is one of NASA's Great Observatory missions, scheduled for launch in 2001. As such its ground segment design is driven by the requirement to provide strong support for the entire astronomical community starting with the call for Legacy Proposals in early 2000. In this contribution, we present the astronomical user interface and the design of the server software that comprises the Scientific Uplink System for SIRTF. The software architecture is split into three major parts: A front-end Java application deployed to the astronomical community providing the capabilities to visualize and edit proposals and the associated lists of observations. This observer toolkit provides templates to define all parameters necessary to carry out the required observations. A specialized version of this software, based on the same overall architecture, is used internal to the SIRTF Science Center to prepare calibration and engineering observations. A Weblogic (TM) based middleware component brokers the transactions with the servers, astronomical image and catalog sources as well as the SIRTF operational databases. Several server systems perform the necessary computations, to obtain resource estimates, target visibilities and to access the instrument models for signal to noise calculations. The same server software is used internally at a later stage to derive the detailed command sequences needed by the SIRTF instruments and spacecraft to execute a given observation.

Advanced order management in ERM systems: the tic-tac-toe algorithm

NASA Astrophysics Data System (ADS)

Badell, Mariana; Fernandez, Elena; Puigjaner, Luis

2000-10-01

The concept behind improved enterprise resource planning systems (ERP) systems is the overall integration of the whole enterprise functionality into the management systems through financial links. Converting current software into real management decision tools requires crucial changes in the current approach to ERP systems. This evolution must be able to incorporate the technological achievements both properly and in time. The exploitation phase of plants needs an open web-based environment for collaborative business-engineering with on-line schedulers. Today's short lifecycles of products and processes require sharp and finely tuned management actions that must be guided by scheduling tools. Additionally, such actions must be able to keep track of money movements related to supply chain events. Thus, the necessary outputs require financial-production integration at the scheduling level as proposed in the new approach of enterprise management systems (ERM). Within this framework, the economical analysis of the due date policy and its optimization become essential to manage dynamically realistic and optimal delivery dates with price-time trade-off during the marketing activities. In this work we propose a scheduling tool with web-based interface conducted by autonomous agents when precise economic information relative to plant and business actions and their effects are provided. It aims to attain a better arrangement of the marketing and production events in order to face the bid/bargain process during e-commerce. Additionally, management systems require real time execution and an efficient transaction-oriented approach capable to dynamically adopt realistic and optimal actions to support marketing management. To this end the TicTacToe algorithm provides sequence optimization with acceptable tolerances in realistic time.

Assessment of three different software systems in the evaluation of dynamic MRI of the breast.

PubMed

Kurz, K D; Steinhaus, D; Klar, V; Cohnen, M; Wittsack, H J; Saleh, A; Mödder, U; Blondin, D

2009-02-01

The aim was to compare the diagnostic performance and handling of dynamic contrast-enhanced MRI of the breast with two commercial software solutions ("CADstream" and "3TP") and one self-developed software system ("Mammatool"). Identical data sets of dynamic breast MRI from 21 patients were evaluated retrospectively with all three software systems. The exams were classified according to the BI-RADS classification. The number of lesions in the parametric mapping was compared to histology or follow-up of more than 2 years. In addition, 25 quality criteria were judged by 3 independent investigators with a score from 0 to 5. Statistical analysis was performed to document the quality ranking of the different software systems. There were 9 invasive carcinomas, one pure DCIS, one papilloma, one radial scar, three histologically proven changes due to mastopathy, one adenosis and two fibroadenomas. Additionally two patients with enhancing parenchyma followed with MRI for more than 3 years and one scar after breast conserving therapy were included. All malignant lesions were classified as BI-RADS 4 or 5 using all software systems and showed significant enhancement in the parametric mapping. "CADstream" showed the best score on subjective quality criteria. "3TP" showed the lowest number of false-positive results. "Mammatool" produced the lowest number of benign tissues indicated with parametric overlay. All three software programs tested were adequate for sensitive and efficient assessment of dynamic MRI of the breast. Improvements in specificity may be achievable.

What shakes the FX tree? Understanding currency dominance, dependence, and dynamics (Keynote Address)

NASA Astrophysics Data System (ADS)

Johnson, Neil F.; McDonald, Mark; Suleman, Omer; Williams, Stacy; Howison, Sam

2005-05-01

There is intense interest in understanding the stochastic and dynamical properties of the global Foreign Exchange (FX) market, whose daily transactions exceed one trillion US dollars. This is a formidable task since the FX market is characterized by a web of fluctuating exchange rates, with subtle inter-dependencies which may change in time. In practice, traders talk of particular currencies being 'in play' during a particular period of time -- yet there is no established machinery for detecting such important information. Here we apply the construction of Minimum Spanning Trees (MSTs) to the FX market, and show that the MST can capture important features of the global FX dynamics. Moreover, we show that the MST can help identify momentarily dominant and dependent currencies.

77 FR 47118 - Agency Information Collection Activities; Submission for OMB Review; Comment Request; Foreign...

Federal Register 2010, 2011, 2012, 2013, 2014

2012-08-07

... for OMB Review; Comment Request; Foreign Currency Transactions Prohibited Transaction Class Exemption... Administration (EBSA) sponsored information collection request (ICR) titled, ``Foreign Currency Transactions...). SUPPLEMENTARY INFORMATION: The Foreign Currency Transactions Prohibited Transaction Class Exemption permits...

77 FR 47119 - Agency Information Collection Activities; Submission for OMB Review; Comment Request; Collective...

Federal Register 2010, 2011, 2012, 2013, 2014

2012-08-07

... for OMB Review; Comment Request; Collective Investment Funds Conversion Transactions Prohibited... Investment Funds Conversion Transactions Prohibited Transaction Class Exemption,'' to the Office of... Conversion Transactions Prohibited Transaction Class Exemption permits an employee benefit plan to purchase...

Transactive memory in organizational groups: the effects of content, consensus, specialization, and accuracy on group performance.

PubMed

Austin, John R

2003-10-01

Previous research on transactive memory has found a positive relationship between transactive memory system development and group performance in single project laboratory and ad hoc groups. Closely related research on shared mental models and expertise recognition supports these findings. In this study, the author examined the relationship between transactive memory systems and performance in mature, continuing groups. A group's transactive memory system, measured as a combination of knowledge stock, knowledge specialization, transactive memory consensus, and transactive memory accuracy, is positively related to group goal performance, external group evaluations, and internal group evaluations. The positive relationship with group performance was found to hold for both task and external relationship transactive memory systems.

Modeling Physical Systems Using Vensim PLE Systems Dynamics Software

NASA Astrophysics Data System (ADS)

Widmark, Stephen

2012-02-01

Many physical systems are described by time-dependent differential equations or systems of such equations. This makes it difficult for students in an introductory physics class to solve many real-world problems since these students typically have little or no experience with this kind of mathematics. In my high school physics classes, I address this problem by having my students use a variety of software solutions to model physical systems described by differential equations. These include spreadsheets, applets, software my students themselves create, and systems dynamics software. For the latter, cost is often the main issue in choosing a solution for use in a public school and so I researched no-cost software. I found Sphinx SD,2OptiSim,3 Systems Dynamics,4 Simile (Trial Edition),5 and Vensim PLE.6 In evaluating each of these solutions, I looked for the fewest restrictions in the license for educational use, ease of use by students, power, and versatility. In my opinion, Vensim PLE best fulfills these criteria.7

Integrating open-source software applications to build molecular dynamics systems.

PubMed

Allen, Bruce M; Predecki, Paul K; Kumosa, Maciej

2014-04-05

Three open-source applications, NanoEngineer-1, packmol, and mis2lmp are integrated using an open-source file format to quickly create molecular dynamics (MD) cells for simulation. The three software applications collectively make up the open-source software (OSS) suite known as MD Studio (MDS). The software is validated through software engineering practices and is verified through simulation of the diglycidyl ether of bisphenol-a and isophorone diamine (DGEBA/IPD) system. Multiple simulations are run using the MDS software to create MD cells, and the data generated are used to calculate density, bulk modulus, and glass transition temperature of the DGEBA/IPD system. Simulation results compare well with published experimental and numerical results. The MDS software prototype confirms that OSS applications can be analyzed against real-world research requirements and integrated to create a new capability. Copyright © 2014 Wiley Periodicals, Inc.

Relationship between leadership styles of nurse managers and nurses' job satisfaction in Jimma University Specialized Hospital.

PubMed

Negussie, Nebiat; Demissie, Asresash

2013-03-01

Leadership style of nurse managers plays a significant role in nurses' job satisfaction. However, there is limited literature in areas related to nurses' manager leadership style. The objective of this research was thus to investigate the relationship between leadership style of nurse managers and nurses' job satisfaction in Jimma University Specialized Hospital. The study was conducted at Jimma University Specialized Hospital from January to June 2012 and used a non-experimental correlation design. All full time, non-supervisory nurses with an experience of more than one year in nursing profession were participated in the study. The Multifactor Leadership Questionnaire and Minnesota Satisfaction Questionnaire were used to collect data. Data were entered and analyzed using SPSS version16.0 statistical software. The results were analyzed through descriptive statistics followed by the application of inferential statistics on the variables. Significance level was considered when p<0.05. A total of 175 copies of the questionnaires were returned out of 186 copies distributed to respondents. The result indicated that nurses can prefer transformational leadership style over transactional leadership style and had moderate-level intrinsic (M=2.72, SD=0.71) but low level of extrinsic job satisfaction (M=1.83, SD=0.68). Furthermore, from transactional leadership, only contingent reward was found to be statically significant and correlated with extrinsic (B=0.45, p<0.01) and intrinsic job satisfaction (B=0.32, p<0.05) while all five dimension of transformational leadership style were statistically significant and correlated with both intrinsic and extrinsic job satisfaction. Nurses tended to be more satisfied with the transformational leadership than transactional leadership style. Therefore, nurses' managers should use transformational leadership style in order to increase nurses' job satisfaction.

17 CFR 5.9 - Security deposits for retail forex transactions.

Code of Federal Regulations, 2012 CFR

2012-04-01

... forex transactions. 5.9 Section 5.9 Commodity and Securities Exchanges COMMODITY FUTURES TRADING COMMISSION OFF-EXCHANGE FOREIGN CURRENCY TRANSACTIONS § 5.9 Security deposits for retail forex transactions. (a) Each futures commission merchant engaging, or offering to engage, in retail forex transactions...

17 CFR 5.9 - Security deposits for retail forex transactions.

Code of Federal Regulations, 2013 CFR

2013-04-01

... forex transactions. 5.9 Section 5.9 Commodity and Securities Exchanges COMMODITY FUTURES TRADING COMMISSION OFF-EXCHANGE FOREIGN CURRENCY TRANSACTIONS § 5.9 Security deposits for retail forex transactions. (a) Each futures commission merchant engaging, or offering to engage, in retail forex transactions...

17 CFR 5.9 - Security deposits for retail forex transactions.

Code of Federal Regulations, 2014 CFR

2014-04-01

... forex transactions. 5.9 Section 5.9 Commodity and Securities Exchanges COMMODITY FUTURES TRADING COMMISSION OFF-EXCHANGE FOREIGN CURRENCY TRANSACTIONS § 5.9 Security deposits for retail forex transactions. (a) Each futures commission merchant engaging, or offering to engage, in retail forex transactions...

26 CFR 1.1221-2 - Hedging transactions.

Code of Federal Regulations, 2011 CFR

2011-04-01

... another position such as a purchased option, then it may be a hedging transaction. (4) Recycling. A... liability as a hedge of another asset or liability (recycling). (5) Transactions not entered into primarily... enters into a hedging transaction (including recycling an existing hedging transaction) must clearly...

26 CFR 1.1221-2 - Hedging transactions.

Code of Federal Regulations, 2012 CFR

2012-04-01

... another position such as a purchased option, then it may be a hedging transaction. (4) Recycling. A... liability as a hedge of another asset or liability (recycling). (5) Transactions not entered into primarily... enters into a hedging transaction (including recycling an existing hedging transaction) must clearly...

26 CFR 1.1221-2 - Hedging transactions.

Code of Federal Regulations, 2014 CFR

2014-04-01

... another position such as a purchased option, then it may be a hedging transaction. (4) Recycling. A... liability as a hedge of another asset or liability (recycling). (5) Transactions not entered into primarily... enters into a hedging transaction (including recycling an existing hedging transaction) must clearly...

26 CFR 1.1221-2 - Hedging transactions.

Code of Federal Regulations, 2010 CFR

2010-04-01

... another position such as a purchased option, then it may be a hedging transaction. (4) Recycling. A... liability as a hedge of another asset or liability (recycling). (5) Transactions not entered into primarily... enters into a hedging transaction (including recycling an existing hedging transaction) must clearly...

26 CFR 1.1221-2 - Hedging transactions.

Code of Federal Regulations, 2013 CFR

2013-04-01

... another position such as a purchased option, then it may be a hedging transaction. (4) Recycling. A... liability as a hedge of another asset or liability (recycling). (5) Transactions not entered into primarily... enters into a hedging transaction (including recycling an existing hedging transaction) must clearly...

NASA Workshop on Computational Structural Mechanics 1987, part 3

NASA Technical Reports Server (NTRS)

Sykes, Nancy P. (Editor)

1989-01-01

Computational Structural Mechanics (CSM) topics are explored. Algorithms and software for nonlinear structural dynamics, concurrent algorithms for transient finite element analysis, computational methods and software systems for dynamics and control of large space structures, and the use of multi-grid for structural analysis are discussed.

Software tools for data modelling and processing of human body temperature circadian dynamics.

PubMed

Petrova, Elena S; Afanasova, Anastasia I

2015-01-01

This paper is presenting a software development for simulating and processing thermometry data. The motivation of this research is the miniaturization of actuators attached to human body which allow frequent temperature measurements and improve the medical diagnosis procedures related to circadian dynamics.

Object Oriented Learning Objects

ERIC Educational Resources Information Center

Morris, Ed

2005-01-01

We apply the object oriented software engineering (OOSE) design methodology for software objects (SOs) to learning objects (LOs). OOSE extends and refines design principles for authoring dynamic reusable LOs. Our learning object class (LOC) is a template from which individualised LOs can be dynamically created for, or by, students. The properties…

Issues and approaches for electronic document approval and transmittal using digital signatures and text authentication: Prototype documentation

NASA Astrophysics Data System (ADS)

Boling, M. E.

1989-09-01

Prototypes were assembled pursuant to recommendations made in report K/DSRD-96, Issues and Approaches for Electronic Document Approval and Transmittal Using Digital Signatures and Text Authentication, and to examine and discover the possibilities for integrating available hardware and software to provide cost effective systems for digital signatures and text authentication. These prototypes show that on a LAN, a multitasking, windowed, mouse/keyboard menu-driven interface can be assembled to provide easy and quick access to bit-mapped images of documents, electronic forms and electronic mail messages with a means to sign, encrypt, deliver, receive or retrieve and authenticate text and signatures. In addition they show that some of this same software may be used in a classified environment using host to terminal transactions to accomplish these same operations. Finally, a prototype was developed demonstrating that binary files may be signed electronically and sent by point to point communication and over ARPANET to remote locations where the authenticity of the code and signature may be verified. Related studies on the subject of electronic signatures and text authentication using public key encryption were done within the Department of Energy. These studies include timing studies of public key encryption software and hardware and testing of experimental user-generated host resident software for public key encryption. This software used commercially available command-line source code. These studies are responsive to an initiative within the Office of the Secretary of Defense (OSD) for the protection of unclassified but sensitive data. It is notable that these related studies are all built around the same commercially available public key encryption products from the private sector and that the software selection was made independently by each study group.

DI Diesel Performance and Emissions Models

DTIC Science & Technology

2003-06-11

Skeletal mechanism for NOx chemistry in diesel engines ,” SAE Paper 981450, 1998 SAE Transactions, Vol. 107, Sect. 4, J. Fuels and... mechanism for NOx chemistry proposed by Mellor et al. (1998a) is incorporated in an engine simulation code. The two-zone model, also proposed by Mellor et...34Dynamic Application of a Skeletal Mechanism for DI Diesel NOx Emissions," SAE Paper 2001-01-1984, SAE Trans., J. Fuels & Lubricants,

A Dealer Model of Foreign Exchange Market with Finite Assets

NASA Astrophysics Data System (ADS)

Hamano, Tomoya; Kanazawa, Kiyoshi; Takayasu, Hideki; Takayasu, Misako

An agent-based model is introduced to study the finite-asset effect in foreign exchange markets. We find that the transacted price asymptotically approaches an equilibrium price, which is determined by the monetary balance between the pair of currencies. We phenomenologically derive a formula to estimate the equilibrium price, and we model its relaxation dynamics around the equilibrium price on the basis of a Langevin-like equation.

COED Transactions, Vol. IX, No. 1, January 1977. Rapid Production of System Phase-Plane Portraits on the EAI 380 Hybrid/Analog Computer.

ERIC Educational Resources Information Center

Marcovitz, Alan B., Ed.

The method of phase-plane presentation as an educational tool in the study of the dynamic behavior of systems is discussed. In the treatment of nonlinear or piecewise-linear systems, the phase-plane portrait is used to exhibit the nature of singular points, regions of stability, and switching lines to aid comprehension. A technique is described by…

Synthesis of Nonlinear Guidance Laws for Missiles with Uncertain Dynamics

DTIC Science & Technology

2007-11-01

and Astronautics, Progress in Astronautics and Aeronautics, Volume 199, 2002. 2. Gurfil , M. Jodorkovsky and M. Guelman, Neoclassical Guidance for...658-666, July-August 2002. 19. P. Gurfil , “Robust Guidance for Electro-Optical Missiles,” IEEE Transactions on Aerospace and Electronic Systems, Vol...edition, Upper Saddle River, NJ: Prentice-Hall, 2002. 23. P. Gurfil , ”Zero-Miss Distance Guidance Law Based on Line-of-Sight Rate Measuremenbt Only

31 CFR 510.404 - Transactions ordinarily incident to a licensed transaction authorized.

Code of Federal Regulations, 2013 CFR

2013-07-01

... licensed transaction authorized. 510.404 Section 510.404 Money and Finance: Treasury Regulations Relating... KOREA SANCTIONS REGULATIONS Interpretations § 510.404 Transactions ordinarily incident to a licensed... blocked pursuant to § 510.201(b); or (b) An ordinarily incident transaction, not explicitly authorized...

31 CFR 510.404 - Transactions ordinarily incident to a licensed transaction authorized.

Code of Federal Regulations, 2011 CFR

2011-07-01

... licensed transaction authorized. 510.404 Section 510.404 Money and Finance: Treasury Regulations Relating... KOREA SANCTIONS REGULATIONS Interpretations § 510.404 Transactions ordinarily incident to a licensed... blocked pursuant to § 510.201(b); or (b) An ordinarily incident transaction, not explicitly authorized...

31 CFR 510.404 - Transactions ordinarily incident to a licensed transaction authorized.

Code of Federal Regulations, 2014 CFR

2014-07-01

... licensed transaction authorized. 510.404 Section 510.404 Money and Finance: Treasury Regulations Relating... KOREA SANCTIONS REGULATIONS Interpretations § 510.404 Transactions ordinarily incident to a licensed... blocked pursuant to § 510.201(b); or (b) An ordinarily incident transaction, not explicitly authorized...

17 CFR 37.8 - Information relating to transactions on derivatives transaction execution facilities.

Code of Federal Regulations, 2010 CFR

2010-04-01

... 17 Commodity and Securities Exchanges 1 2010-04-01 2010-04-01 false Information relating to transactions on derivatives transaction execution facilities. 37.8 Section 37.8 Commodity and Securities Exchanges COMMODITY FUTURES TRADING COMMISSION DERIVATIVES TRANSACTION EXECUTION FACILITIES § 37.8...

75 FR 76139 - Real-Time Public Reporting of Swap Transaction Data

Federal Register 2010, 2011, 2012, 2013, 2014

2010-12-07

... Transaction Data; Proposed Rule #0;#0;Federal Register / Vol. 75 , No. 234 / Tuesday, December 7, 2010...-Time Public Reporting of Swap Transaction Data AGENCY: Commodity Futures Trading Commission. ACTION...-time public reporting of swap transaction and pricing data for all swap transactions. Additionally, the...

The Effect of Learning Geometry Topics of 7th Grade in Primary Education with Dynamic Geometer's Sketchpad Geometry Software to Success and Retention

ERIC Educational Resources Information Center

Kesan, Cenk; Caliskan, Sevdane

2013-01-01

The aim of this study is to investigate the effect of learning geometry topics of 7th grade in primary education with dynamic geometer's sketchpad geometry software to student's success and retention. The experimental research design with The Posttest-Only Control Group was used in this study. In the experimental group, dynamic geometer's…

Robotics On-Board Trainer (ROBoT)

NASA Technical Reports Server (NTRS)

Johnson, Genevieve; Alexander, Greg

2013-01-01

ROBoT is an on-orbit version of the ground-based Dynamics Skills Trainer (DST) that astronauts use for training on a frequent basis. This software consists of two primary software groups. The first series of components is responsible for displaying the graphical scenes. The remaining components are responsible for simulating the Mobile Servicing System (MSS), the Japanese Experiment Module Remote Manipulator System (JEMRMS), and the H-II Transfer Vehicle (HTV) Free Flyer Robotics Operations. The MSS simulation software includes: Robotic Workstation (RWS) simulation, a simulation of the Space Station Remote Manipulator System (SSRMS), a simulation of the ISS Command and Control System (CCS), and a portion of the Portable Computer System (PCS) software necessary for MSS operations. These components all run under the CentOS4.5 Linux operating system. The JEMRMS simulation software includes real-time, HIL, dynamics, manipulator multi-body dynamics, and a moving object contact model with Tricks discrete time scheduling. The JEMRMS DST will be used as a functional proficiency and skills trainer for flight crews. The HTV Free Flyer Robotics Operations simulation software adds a functional simulation of HTV vehicle controllers, sensors, and data to the MSS simulation software. These components are intended to support HTV ISS visiting vehicle analysis and training. The scene generation software will use DOUG (Dynamic On-orbit Ubiquitous Graphics) to render the graphical scenes. DOUG runs on a laptop running the CentOS4.5 Linux operating system. DOUG is an Open GL-based 3D computer graphics rendering package. It uses pre-built three-dimensional models of on-orbit ISS and space shuttle systems elements, and provides realtime views of various station and shuttle configurations.

17 CFR 5.20 - Special calls for account and transaction information.

Code of Federal Regulations, 2013 CFR

2013-04-01

...'s account in retail forex transactions. (c) Special calls for information on open transactions in... introducing brokers. Upon special call by the Commission for information relating to retail forex transactions... concerning accounts of traders owning or controlling such retail forex transaction positions, as may be...

17 CFR 5.20 - Special calls for account and transaction information.

Code of Federal Regulations, 2012 CFR

2012-04-01

...'s account in retail forex transactions. (c) Special calls for information on open transactions in... introducing brokers. Upon special call by the Commission for information relating to retail forex transactions... concerning accounts of traders owning or controlling such retail forex transaction positions, as may be...

17 CFR 5.20 - Special calls for account and transaction information.

Code of Federal Regulations, 2014 CFR

2014-04-01

...'s account in retail forex transactions. (c) Special calls for information on open transactions in... introducing brokers. Upon special call by the Commission for information relating to retail forex transactions... concerning accounts of traders owning or controlling such retail forex transaction positions, as may be...

12 CFR 226.8 - Identification of transactions.

Code of Federal Regulations, 2010 CFR

2010-01-01

... either the date of the transaction or the date of debiting the transaction to the consumer's account are... consumer, if the number or symbol reasonably identifies that transaction with that creditor, and if the... the consumer with point-of-sale documentation for that transaction; and (4) the creditor treats an...

26 CFR 157.5891-1 - Imposition of excise tax on structured settlement factoring transactions.

Code of Federal Regulations, 2010 CFR

2010-04-01

... settlement factoring transactions. 157.5891-1 Section 157.5891-1 Internal Revenue INTERNAL REVENUE SERVICE... SETTLEMENT FACTORING TRANSACTIONS Tax on Structured Settlement Factoring Transactions § 157.5891-1 Imposition of excise tax on structured settlement factoring transactions. (a) In general. Section 5891 imposes...

78 FR 31578 - Agency Information Collection Activities; Submission for OMB Review; Comment Request; Prohibited...

Federal Register 2010, 2011, 2012, 2013, 2014

2013-05-24

... for OMB Review; Comment Request; Prohibited Transaction Class Exemption 75-1, Security Transactions... request (ICR) titled, ``Prohibited Transaction Class Exemption 75-1, Security Transactions with Broker....gov . Authority: 44 U.S.C. 3507(a)(1)(D). SUPPLEMENTARY INFORMATION: The Prohibited Transaction Class...

78 FR 44981 - Agency Information Collection Activities; Submission for OMB Review; Comment Request; Plan Asset...

Federal Register 2010, 2011, 2012, 2013, 2014

2013-07-25

... for OMB Review; Comment Request; Plan Asset Transactions Determined by In-House Asset Managers Under...) titled, ``Plan Asset Transactions Determined by In-House Asset Managers under Prohibited Transaction... Transaction Class Exemption for Plan Asset Transactions Determined by In-House Asset Managers (PTE 96-23...

75 FR 63883 - Self-Regulatory Organizations; Municipal Securities Rulemaking Board; Notice of Filing of...

Federal Register 2010, 2011, 2012, 2013, 2014

2010-10-18

... the MSRB's Real-time Transaction Reporting System (``RTRS''). The proposed rule change consists of fee changes to the MSRB's Real-Time Transaction Price Service and Comprehensive Transaction Price Service of... Consisting of Fee Changes to Its Real-Time Transaction Price Service and Comprehensive Transaction Price...

Transactions in domain-specific information systems

NASA Astrophysics Data System (ADS)

Zacek, Jaroslav

2017-07-01

Substantial number of the current information system (IS) implementations is based on transaction approach. In addition, most of the implementations are domain-specific (e.g. accounting IS, resource planning IS). Therefore, we have to have a generic transaction model to build and verify domain-specific IS. The paper proposes a new transaction model for domain-specific ontologies. This model is based on value oriented business process modelling technique. The transaction model is formalized by the Petri Net theory. First part of the paper presents common business processes and analyses related to business process modeling. Second part defines the transactional model delimited by REA enterprise ontology paradigm and introduces states of the generic transaction model. The generic model proposal is defined and visualized by the Petri Net modelling tool. Third part shows application of the generic transaction model. Last part of the paper concludes results and discusses a practical usability of the generic transaction model.

Dynamic Geometry Software Improves Mathematical Achievement: Systematic Review and Meta-Analysis

ERIC Educational Resources Information Center

Chan, Kan Kan; Leung, Siu Wai

2014-01-01

Dynamic geometry software (DGS) aims to enhance mathematics education. This systematic review and meta-analysis evaluated the quasi-experimental studies on the effectiveness of DGS-based instruction in improving students' mathematical achievement. Research articles published between 1990 and 2013 were identified from major databases according to a…

Making Enzyme Kinetics Dynamic via Simulation Software

ERIC Educational Resources Information Center

Potratz, Jeffrey P.

2017-01-01

An interactive classroom demonstration that enhances students' knowledge of steady-state and Michaelis-Menten enzyme kinetics is described. The instructor uses a free version of professional-quality KinTek Explorer simulation software and student input to construct dynamic versions of three static hallmark images commonly used to introduce enzyme…

Learning Geometry through Dynamic Geometry Software

ERIC Educational Resources Information Center

Forsythe, Sue

2007-01-01

In this article, the author investigates effective teaching and learning of geometrical concepts using dynamic geometry software (DGS). Based from her students' reactions to her project, the author found that her students' understanding of the concepts was better than if they had learned geometry through paper-based tasks. However, mixing computer…

12 CFR 551.130 - When must I settle a securities transaction?

Code of Federal Regulations, 2010 CFR

2010-01-01

... RECORDKEEPING AND CONFIRMATION REQUIREMENTS FOR SECURITIES TRANSACTIONS Settlement of Securities Transactions § 551.130 When must I settle a securities transaction? (a) You may not effect or enter into a contract... 12 Banks and Banking 5 2010-01-01 2010-01-01 false When must I settle a securities transaction...

Virtual acoustic environments for comprehensive evaluation of model-based hearing devices.

PubMed

Grimm, Giso; Luberadzka, Joanna; Hohmann, Volker

2018-06-01

Create virtual acoustic environments (VAEs) with interactive dynamic rendering for applications in audiology. A toolbox for creation and rendering of dynamic virtual acoustic environments (TASCAR) that allows direct user interaction was developed for application in hearing aid research and audiology. The software architecture and the simulation methods used to produce VAEs are outlined. Example environments are described and analysed. With the proposed software, a tool for simulation of VAEs is available. A set of VAEs rendered with the proposed software was described.

Monitoring software development through dynamic variables

NASA Technical Reports Server (NTRS)

Doerflinger, Carl W.; Basili, Victor R.

1983-01-01

Research conducted by the Software Engineering Laboratory (SEL) on the use of dynamic variables as a tool to monitor software development is described. Project independent measures which may be used in a management tool for monitoring software development are identified. Several FORTRAN projects with similar profiles are examined. The staff was experienced in developing these types of projects. The projects developed serve similar functions. Because these projects are similar some underlying relationships exist that are invariant between projects. These relationships, once well defined, may be used to compare the development of different projects to determine whether they are evolving the same way previous projects in this environment evolved.

How to Use EMTS to Report Transactions for Fuel Programs

EPA Pesticide Factsheets

Reporting instructions for parties who transact Renewable Identification Numbers (RINs) and must enter transaction information in the EPA Moderated Transaction System (EMTS) within five (5) business days.

AdapChem

NASA Technical Reports Server (NTRS)

Oluwole, Oluwayemisi O.; Wong, Hsi-Wu; Green, William

2012-01-01

AdapChem software enables high efficiency, low computational cost, and enhanced accuracy on computational fluid dynamics (CFD) numerical simulations used for combustion studies. The software dynamically allocates smaller, reduced chemical models instead of the larger, full chemistry models to evolve the calculation while ensuring the same accuracy to be obtained for steady-state CFD reacting flow simulations. The software enables detailed chemical kinetic modeling in combustion CFD simulations. AdapChem adapts the reaction mechanism used in the CFD to the local reaction conditions. Instead of a single, comprehensive reaction mechanism throughout the computation, a dynamic distribution of smaller, reduced models is used to capture accurately the chemical kinetics at a fraction of the cost of the traditional single-mechanism approach.

Mystic: Implementation of the Static Dynamic Optimal Control Algorithm for High-Fidelity, Low-Thrust Trajectory Design

NASA Technical Reports Server (NTRS)

Whiffen, Gregory J.

2006-01-01

Mystic software is designed to compute, analyze, and visualize optimal high-fidelity, low-thrust trajectories, The software can be used to analyze inter-planetary, planetocentric, and combination trajectories, Mystic also provides utilities to assist in the operation and navigation of low-thrust spacecraft. Mystic will be used to design and navigate the NASA's Dawn Discovery mission to orbit the two largest asteroids, The underlying optimization algorithm used in the Mystic software is called Static/Dynamic Optimal Control (SDC). SDC is a nonlinear optimal control method designed to optimize both 'static variables' (parameters) and dynamic variables (functions of time) simultaneously. SDC is a general nonlinear optimal control algorithm based on Bellman's principal.

Software life cycle dynamic simulation model: The organizational performance submodel

NASA Technical Reports Server (NTRS)

Tausworthe, Robert C.

1985-01-01

The submodel structure of a software life cycle dynamic simulation model is described. The software process is divided into seven phases, each with product, staff, and funding flows. The model is subdivided into an organizational response submodel, a management submodel, a management influence interface, and a model analyst interface. The concentration here is on the organizational response model, which simulates the performance characteristics of a software development subject to external and internal influences. These influences emanate from two sources: the model analyst interface, which configures the model to simulate the response of an implementing organization subject to its own internal influences, and the management submodel that exerts external dynamic control over the production process. A complete characterization is given of the organizational response submodel in the form of parameterized differential equations governing product, staffing, and funding levels. The parameter values and functions are allocated to the two interfaces.

PB-AM: An open-source, fully analytical linear poisson-boltzmann solver.

PubMed

Felberg, Lisa E; Brookes, David H; Yap, Eng-Hui; Jurrus, Elizabeth; Baker, Nathan A; Head-Gordon, Teresa

2017-06-05

We present the open source distributed software package Poisson-Boltzmann Analytical Method (PB-AM), a fully analytical solution to the linearized PB equation, for molecules represented as non-overlapping spherical cavities. The PB-AM software package includes the generation of outputs files appropriate for visualization using visual molecular dynamics, a Brownian dynamics scheme that uses periodic boundary conditions to simulate dynamics, the ability to specify docking criteria, and offers two different kinetics schemes to evaluate biomolecular association rate constants. Given that PB-AM defines mutual polarization completely and accurately, it can be refactored as a many-body expansion to explore 2- and 3-body polarization. Additionally, the software has been integrated into the Adaptive Poisson-Boltzmann Solver (APBS) software package to make it more accessible to a larger group of scientists, educators, and students that are more familiar with the APBS framework. © 2016 Wiley Periodicals, Inc. © 2016 Wiley Periodicals, Inc.

31 CFR 560.555 - Winding-down of transactions prohibited by § 560.215.

Code of Federal Regulations, 2014 CFR

2014-07-01

... 31 Money and Finance:Treasury 3 2014-07-01 2014-07-01 false Winding-down of transactions... Winding-down of transactions prohibited by § 560.215. (a) Except as set forth in paragraphs (b) and (c) of this section, all transactions ordinarily incident and necessary to the winding-down of transactions...

31 CFR 560.555 - Winding-down of transactions prohibited by § 560.215.

Code of Federal Regulations, 2013 CFR

2013-07-01

... 31 Money and Finance:Treasury 3 2013-07-01 2013-07-01 false Winding-down of transactions... Winding-down of transactions prohibited by § 560.215. (a) Except as set forth in paragraphs (b) and (c) of this section, all transactions ordinarily incident and necessary to the winding-down of transactions...

22 CFR 208.205 - Why is it important to know if a particular transaction is a covered transaction?

Code of Federal Regulations, 2010 CFR

2010-04-01

... 22 Foreign Relations 1 2010-04-01 2010-04-01 false Why is it important to know if a particular transaction is a covered transaction? 208.205 Section 208.205 Foreign Relations AGENCY FOR INTERNATIONAL DEVELOPMENT GOVERNMENTWIDE DEBARMENT AND SUSPENSION (NONPROCUREMENT) Covered Transactions § 208.205 Why is it...

34 CFR 85.205 - Why is it important if a particular transaction is a covered transaction?

Code of Federal Regulations, 2010 CFR

2010-07-01

... 34 Education 1 2010-07-01 2010-07-01 false Why is it important if a particular transaction is a covered transaction? 85.205 Section 85.205 Education Office of the Secretary, Department of Education GOVERNMENTWIDE DEBARMENT AND SUSPENSION (NONPROCUREMENT) Covered Transactions § 85.205 Why is it important if a...

21 CFR 1404.205 - Why is it important if a particular transaction is a covered transaction?

Code of Federal Regulations, 2010 CFR

2010-04-01

... 21 Food and Drugs 9 2010-04-01 2010-04-01 false Why is it important if a particular transaction is a covered transaction? 1404.205 Section 1404.205 Food and Drugs OFFICE OF NATIONAL DRUG CONTROL POLICY GOVERNMENTWIDE DEBARMENT AND SUSPENSION (NONPROCUREMENT) Covered Transactions § 1404.205 Why is it...

26 CFR 31.3406(b)(3)-5 - Reportable payments of payment card and third party network transactions.

Code of Federal Regulations, 2011 CFR

2011-04-01

... party network transactions. 31.3406(b)(3)-5 Section 31.3406(b)(3)-5 Internal Revenue INTERNAL REVENUE... Reportable payments of payment card and third party network transactions. (a) Payment card and third party network transactions subject to backup withholding. The gross amount of a reportable transaction that is...

Problem Solving in Calculus with Symbolic Geometry and CAS

ERIC Educational Resources Information Center

Todd, Philip; Wiechmann, James

2008-01-01

Computer algebra systems (CAS) have been around for a number of years, as has dynamic geometry. Symbolic geometry software is new. It bears a superficial similarity to dynamic geometry software, but differs in that problems may be set up involving symbolic variables and constants, and measurements are given as symbolic expressions. Mathematical…

Students Discovering Spherical Geometry Using Dynamic Geometry Software

ERIC Educational Resources Information Center

Guven, Bulent; Karatas, Ilhan

2009-01-01

Dynamic geometry software (DGS) such as Cabri and Geometers' Sketchpad has been regularly used worldwide for teaching and learning Euclidean geometry for a long time. The DGS with its inductive nature allows students to learn Euclidean geometry via explorations. However, with respect to non-Euclidean geometries, do we need to introduce them to…

Integrating Dynamic Mathematics Software into Cooperative Learning Environments in Mathematics

ERIC Educational Resources Information Center

Zengin, Yilmaz; Tatar, Enver

2017-01-01

The aim of this study was to evaluate the implementation of the cooperative learning model supported with dynamic mathematics software (DMS), that is a reflection of constructivist learning theory in the classroom environment, in the teaching of mathematics. For this purpose, a workshop was conducted with the volunteer teachers on the…

The Teaching of Polar Coordinates with Dynamic Mathematics Software

ERIC Educational Resources Information Center

Zengin, Yilmaz; Tatar, Enver

2015-01-01

The purpose of this study was to determine the effects of dynamic mathematics software on the achievement of pre-service mathematics teachers in the topic of polar coordinates and to solicit their opinions about computer-assisted instruction. The study was conducted for 11 weeks with 33 pre-service teachers in the Department of Mathematics…

A Decision Tool that Combines Discrete Event Software Process Models with System Dynamics Pieces for Software Development Cost Estimation and Analysis

NASA Technical Reports Server (NTRS)

Mizell, Carolyn Barrett; Malone, Linda

2007-01-01

The development process for a large software development project is very complex and dependent on many variables that are dynamic and interrelated. Factors such as size, productivity and defect injection rates will have substantial impact on the project in terms of cost and schedule. These factors can be affected by the intricacies of the process itself as well as human behavior because the process is very labor intensive. The complex nature of the development process can be investigated with software development process models that utilize discrete event simulation to analyze the effects of process changes. The organizational environment and its effects on the workforce can be analyzed with system dynamics that utilizes continuous simulation. Each has unique strengths and the benefits of both types can be exploited by combining a system dynamics model and a discrete event process model. This paper will demonstrate how the two types of models can be combined to investigate the impacts of human resource interactions on productivity and ultimately on cost and schedule.

Integrating Entropy and Closed Frequent Pattern Mining for Social Network Modelling and Analysis

NASA Astrophysics Data System (ADS)

Adnan, Muhaimenul; Alhajj, Reda; Rokne, Jon

The recent increase in the explicitly available social networks has attracted the attention of the research community to investigate how it would be possible to benefit from such a powerful model in producing effective solutions for problems in other domains where the social network is implicit; we argue that social networks do exist around us but the key issue is how to realize and analyze them. This chapter presents a novel approach for constructing a social network model by an integrated framework that first preparing the data to be analyzed and then applies entropy and frequent closed patterns mining for network construction. For a given problem, we first prepare the data by identifying items and transactions, which arc the basic ingredients for frequent closed patterns mining. Items arc main objects in the problem and a transaction is a set of items that could exist together at one time (e.g., items purchased in one visit to the supermarket). Transactions could be analyzed to discover frequent closed patterns using any of the well-known techniques. Frequent closed patterns have the advantage that they successfully grab the inherent information content of the dataset and is applicable to a broader set of domains. Entropies of the frequent closed patterns arc used to keep the dimensionality of the feature vectors to a reasonable size; it is a kind of feature reduction process. Finally, we analyze the dynamic behavior of the constructed social network. Experiments were conducted on a synthetic dataset and on the Enron corpus email dataset. The results presented in the chapter show that social networks extracted from a feature set as frequent closed patterns successfully carry the community structure information. Moreover, for the Enron email dataset, we present an analysis to dynamically indicate the deviations from each user's individual and community profile. These indications of deviations can be very useful to identify unusual events.

12 CFR 12.7 - Securities trading policies and procedures.

Code of Federal Regulations, 2011 CFR

2011-01-01

... has no direct or indirect influence or control over the transaction; (2) The transaction is in mutual fund shares; (3) The transaction is in government securities; or (4) The transactions involve an...

17 CFR 37.2 - Exemption.

Code of Federal Regulations, 2011 CFR

2011-04-01

... Commodity and Securities Exchanges COMMODITY FUTURES TRADING COMMISSION DERIVATIVES TRANSACTION EXECUTION FACILITIES § 37.2 Exemption. Contracts, agreements or transactions traded on a derivatives transaction... derivatives transaction execution facilities. [71 FR 37822, July 3, 2006] ...

Robotic intelligence kernel

DOEpatents

Bruemmer, David J [Idaho Falls, ID

2009-11-17

A robot platform includes perceptors, locomotors, and a system controller. The system controller executes a robot intelligence kernel (RIK) that includes a multi-level architecture and a dynamic autonomy structure. The multi-level architecture includes a robot behavior level for defining robot behaviors, that incorporate robot attributes and a cognitive level for defining conduct modules that blend an adaptive interaction between predefined decision functions and the robot behaviors. The dynamic autonomy structure is configured for modifying a transaction capacity between an operator intervention and a robot initiative and may include multiple levels with at least a teleoperation mode configured to maximize the operator intervention and minimize the robot initiative and an autonomous mode configured to minimize the operator intervention and maximize the robot initiative. Within the RIK at least the cognitive level includes the dynamic autonomy structure.

ROSA: Distributed Joint Routing and Dynamic Spectrum Allocation in Cognitive Radio Ad Hoc Networks

DTIC Science & Technology

2010-03-01

Aug. 1999. [20] I. N. Psaromiligkos and S. N. Batalama. Rapid Combined Synchronization/Demodulation Structures for DS - CDMA Systems - Part II: Finite...Medley. Rapid Combined Synchronization/Demodulation Structures for DS - CDMA Systems - Part I: Algorithmic developments. IEEE Transactions on...multiple access ( CDMA ) [21][20] al- low concurrent co-located communications so that a message from node i to node j can be correctly received even if

Transactions of the Army Conference on Applied Mathematics and Computing (1st) Held at Washington, DC on 9-11 May 1983

DTIC Science & Technology

1984-02-01

I . . . . . . An Introduction to Geometric Programming Patrick D. Allen and David W. Baker . . . . . . , . . . . . . . Space and Time...Zarwyn, US-Army Electronics R & D Comhiand GEOMETRIC PROGRAMING SPACE AND TIFFE ANALYSIS IN DYNAMIC PROGRAMING ALGORITHMS Renne..tf Stizti, AkeanXa...physical and parameter space can be connected by asymptotic matching. The purpose of the asymptotic analysis is to define the simplest problems

Socioeconophysics:. Opinion Dynamics for Number of Transactions and Price, a Trader Based Model

NASA Astrophysics Data System (ADS)

Tuncay, Çağlar

Involving effects of media, opinion leader and other agents on the opinion of individuals of market society, a trader based model is developed and utilized to simulate price via supply and demand. Pronounced effects are considered with several weights and some personal differences between traders are taken into account. Resulting time series and probabilty distribution function involving a power law for price come out similar to the real ones.

GDP-to-GTP exchange on the microtubule end can contribute to the frequency of catastrophe.

PubMed

Piedra, Felipe-Andrés; Kim, Tae; Garza, Emily S; Geyer, Elisabeth A; Burns, Alexander; Ye, Xuecheng; Rice, Luke M

2016-11-07

Microtubules are dynamic polymers of αβ-tubulin that have essential roles in chromosome segregation and organization of the cytoplasm. Catastrophe-the switch from growing to shrinking-occurs when a microtubule loses its stabilizing GTP cap. Recent evidence indicates that the nucleotide on the microtubule end controls how tightly an incoming subunit will be bound (trans-acting GTP), but most current models do not incorporate this information. We implemented trans-acting GTP into a computational model for microtubule dynamics. In simulations, growing microtubules often exposed terminal GDP-bound subunits without undergoing catastrophe. Transient GDP exposure on the growing plus end slowed elongation by reducing the number of favorable binding sites on the microtubule end. Slower elongation led to erosion of the GTP cap and an increase in the frequency of catastrophe. Allowing GDP-to-GTP exchange on terminal subunits in simulations mitigated these effects. Using mutant αβ-tubulin or modified GTP, we showed experimentally that a more readily exchangeable nucleotide led to less frequent catastrophe. Current models for microtubule dynamics do not account for GDP-to-GTP exchange on the growing microtubule end, so our findings provide a new way of thinking about the molecular events that initiate catastrophe. © 2016 Piedra et al. This article is distributed by The American Society for Cell Biology under license from the author(s). Two months after publication it is available to the public under an Attribution–Noncommercial–Share Alike 3.0 Unported Creative Commons License (http://creativecommons.org/licenses/by-nc-sa/3.0).

Using web technology and Java mobile software agents to manage outside referrals.

PubMed Central

Murphy, S. N.; Ng, T.; Sittig, D. F.; Barnett, G. O.

1998-01-01

A prototype, web-based referral application was created with the objective of providing outside primary care providers (PCP's) the means to refer patients to the Massachusetts General Hospital and the Brigham and Women's Hospital. The application was designed to achieve the two primary objectives of providing the consultant with enough data to make decisions even at the initial visit, and providing the PCP with a prompt response from the consultant. The system uses a web browser/server to initiate the referral and Java mobile software agents to support the workflow of the referral. This combination provides a light client implementation that can run on a wide variety of hardware and software platforms found in the office of the PCP. The implementation can guarantee a high degree of security for the computer of the PCP. Agents can be adapted to support the wide variety of data types that may be used in referral transactions, including reports with complex presentation needs and scanned (faxed) images Agents can be delivered to the PCP as running applications that can perform ongoing queries and alerts at the office of the PCP. Finally, the agent architecture is designed to scale in a natural and seamless manner for unforeseen future needs. PMID:9929190

Web-Based Collaborative Publications System: R&Tserve

NASA Technical Reports Server (NTRS)

Abrams, Steve

1997-01-01

R&Tserve is a publications system based on 'commercial, off-the-shelf' (COTS) software that provides a persistent, collaborative workspace for authors and editors to support the entire publication development process from initial submission, through iterative editing in a hierarchical approval structure, and on to 'publication' on the WWW. It requires no specific knowledge of the WWW (beyond basic use) or HyperText Markup Language (HTML). Graphics and URLs are automatically supported. The system includes a transaction archive, a comments utility, help functionality, automated graphics conversion, automated table generation, and an email-based notification system. It may be configured and administered via the WWW and can support publications ranging from single page documents to multiple-volume 'tomes'.

Transactions and Answer Judging in Multimedia Instruction: A Way to Transact with Features Appearing in Video and Graphic Images.

ERIC Educational Resources Information Center

Casey, Carl

1992-01-01

Discussion of transactions in computer-based instruction for ill-structured and visual domains focuses on two transactions developed for meteorology training that provide the capability to interact with video and graphic images at a very detailed level. Potential applications for the transactions are suggested, and early evaluation reports are…

5 CFR 919.405 - May I enter into a covered transaction with a participant if a principal of the transaction is...

Code of Federal Regulations, 2010 CFR

2010-01-01

... with a participant if a principal of the transaction is excluded? 919.405 Section 919.405 Administrative Personnel OFFICE OF PERSONNEL MANAGEMENT (CONTINUED) CIVIL SERVICE REGULATIONS (CONTINUED... § 919.405 May I enter into a covered transaction with a participant if a principal of the transaction is...

Dynamic Virtual Credit Card Numbers

NASA Astrophysics Data System (ADS)

Molloy, Ian; Li, Jiangtao; Li, Ninghui

Theft of stored credit card information is an increasing threat to e-commerce. We propose a dynamic virtual credit card number scheme that reduces the damage caused by stolen credit card numbers. A user can use an existing credit card account to generate multiple virtual credit card numbers that are either usable for a single transaction or are tied with a particular merchant. We call the scheme dynamic because the virtual credit card numbers can be generated without online contact with the credit card issuers. These numbers can be processed without changing any of the infrastructure currently in place; the only changes will be at the end points, namely, the card users and the card issuers. We analyze the security requirements for dynamic virtual credit card numbers, discuss the design space, propose a scheme using HMAC, and prove its security under the assumption the underlying function is a PRF.

Using genetic algorithm to solve a new multi-period stochastic optimization model

NASA Astrophysics Data System (ADS)

Zhang, Xin-Li; Zhang, Ke-Cun

2009-09-01

This paper presents a new asset allocation model based on the CVaR risk measure and transaction costs. Institutional investors manage their strategic asset mix over time to achieve favorable returns subject to various uncertainties, policy and legal constraints, and other requirements. One may use a multi-period portfolio optimization model in order to determine an optimal asset mix. Recently, an alternative stochastic programming model with simulated paths was proposed by Hibiki [N. Hibiki, A hybrid simulation/tree multi-period stochastic programming model for optimal asset allocation, in: H. Takahashi, (Ed.) The Japanese Association of Financial Econometrics and Engineering, JAFFE Journal (2001) 89-119 (in Japanese); N. Hibiki A hybrid simulation/tree stochastic optimization model for dynamic asset allocation, in: B. Scherer (Ed.), Asset and Liability Management Tools: A Handbook for Best Practice, Risk Books, 2003, pp. 269-294], which was called a hybrid model. However, the transaction costs weren't considered in that paper. In this paper, we improve Hibiki's model in the following aspects: (1) The risk measure CVaR is introduced to control the wealth loss risk while maximizing the expected utility; (2) Typical market imperfections such as short sale constraints, proportional transaction costs are considered simultaneously. (3) Applying a genetic algorithm to solve the resulting model is discussed in detail. Numerical results show the suitability and feasibility of our methodology.

How second-grade students internalize rules during teacher-student transactions: a case study.

PubMed

Méard, Jacques; Bertone, Stefano; Flavier, Eric

2008-09-01

Vygotsky's theory of the internalization of signs provided the basis for this study. This study tried to analyse the processes by which second-grade students internalize school rules. Ethnographic data were collected on 102 lessons in a second-grade class (6-8 years) during 1 year. This study focused on three lessons (ethnographic data completed by video-recordings, post-lesson interviews with the teacher, and re-transcriptions of the verbal interactions of the lessons and interviews). The longitudinal observation data were broken down into discrete transactions, crossed with the recorded data, and analysed in a four-step procedure. The results showed that the students' self-regulated actions (voluntary performance of prescribed actions) corresponded to the teacher's presentation of the rules, which was varied and personalized. She used explanation/justification, negotiation, persuasion, or imposition as a function of the situation and the students concerned. The results revealed: (a) Multiple actions of explanation/justification of the rules, negotiation and persuasion to the entire class, (b) Personalized actions of persuasion and rule imposition in instances of heteronomous actions by students, (c) Actions adjusted to the dynamics of the transactions. This study demonstrates how closely the actions of teacher and students are linked. More than a linear process of rules internalization, education looks like a co-construction of rules between teacher and students. These results can serve as a basis for the tools of teacher teaching.

Transactional Sex Risk across a Typology of Rural and Urban Female Sex Workers in Indonesia: A Mixed Methods Study

PubMed Central

Puradiredja, Dewi Ismajani; Coast, Ernestina

2012-01-01

Context-specific typologies of female sex workers (FSWs) are essential for the design of HIV intervention programming. This study develops a novel FSW typology for the analysis of transactional sex risk in rural and urban settings in Indonesia. Mixed methods include a survey of rural and urban FSWs (n = 310), in-depth interviews (n = 11), key informant interviews (n = 5) and ethnographic assessments. Thematic analysis categorises FSWs into 5 distinct groups based on geographical location of their sex work settings, place of solicitation, and whether sex work is their primary occupation. Multiple regression analysis shows that the likelihood of consistent condom use was higher among urban venue-based FSWs for whom sex work is not the only source of income than for any of the other rural and urban FSW groups. This effect was explained by the significantly lower likelihood of consistent condom use by rural venue-based FSWs (adjusted OR: 0.34 95% CI 0.13–0.90, p = 0.029). The FSW typology and differences in organisational features and social dynamics are more closely related to the risk of unprotected transactional sex, than levels of condom awareness and availability. Interventions need context-specific strategies to reach the different FSWs identified by this study's typology. PMID:23285205

75 FR 10704 - International Services Surveys: BE-180, Benchmark Survey of Financial Services Transactions...

Federal Register 2010, 2011, 2012, 2013, 2014

2010-03-09

... transactions with foreign persons. In nonbenchmark years, the universe estimates covering these transactions... nonbenchmark years, the universe estimates covering these transactions would be derived from the sample data...

GDSCalc: A Web-Based Application for Evaluating Discrete Graph Dynamical Systems

PubMed Central

Elmeligy Abdelhamid, Sherif H.; Kuhlman, Chris J.; Marathe, Madhav V.; Mortveit, Henning S.; Ravi, S. S.

2015-01-01

Discrete dynamical systems are used to model various realistic systems in network science, from social unrest in human populations to regulation in biological networks. A common approach is to model the agents of a system as vertices of a graph, and the pairwise interactions between agents as edges. Agents are in one of a finite set of states at each discrete time step and are assigned functions that describe how their states change based on neighborhood relations. Full characterization of state transitions of one system can give insights into fundamental behaviors of other dynamical systems. In this paper, we describe a discrete graph dynamical systems (GDSs) application called GDSCalc for computing and characterizing system dynamics. It is an open access system that is used through a web interface. We provide an overview of GDS theory. This theory is the basis of the web application; i.e., an understanding of GDS provides an understanding of the software features, while abstracting away implementation details. We present a set of illustrative examples to demonstrate its use in education and research. Finally, we compare GDSCalc with other discrete dynamical system software tools. Our perspective is that no single software tool will perform all computations that may be required by all users; tools typically have particular features that are more suitable for some tasks. We situate GDSCalc within this space of software tools. PMID:26263006

GDSCalc: A Web-Based Application for Evaluating Discrete Graph Dynamical Systems.

PubMed

Elmeligy Abdelhamid, Sherif H; Kuhlman, Chris J; Marathe, Madhav V; Mortveit, Henning S; Ravi, S S

2015-01-01

Discrete dynamical systems are used to model various realistic systems in network science, from social unrest in human populations to regulation in biological networks. A common approach is to model the agents of a system as vertices of a graph, and the pairwise interactions between agents as edges. Agents are in one of a finite set of states at each discrete time step and are assigned functions that describe how their states change based on neighborhood relations. Full characterization of state transitions of one system can give insights into fundamental behaviors of other dynamical systems. In this paper, we describe a discrete graph dynamical systems (GDSs) application called GDSCalc for computing and characterizing system dynamics. It is an open access system that is used through a web interface. We provide an overview of GDS theory. This theory is the basis of the web application; i.e., an understanding of GDS provides an understanding of the software features, while abstracting away implementation details. We present a set of illustrative examples to demonstrate its use in education and research. Finally, we compare GDSCalc with other discrete dynamical system software tools. Our perspective is that no single software tool will perform all computations that may be required by all users; tools typically have particular features that are more suitable for some tasks. We situate GDSCalc within this space of software tools.

Ontology Based Quality Evaluation for Spatial Data

NASA Astrophysics Data System (ADS)

Yılmaz, C.; Cömert, Ç.

2015-08-01

Many institutions will be providing data to the National Spatial Data Infrastructure (NSDI). Current technical background of the NSDI is based on syntactic web services. It is expected that this will be replaced by semantic web services. The quality of the data provided is important in terms of the decision-making process and the accuracy of transactions. Therefore, the data quality needs to be tested. This topic has been neglected in Turkey. Data quality control for NSDI may be done by private or public "data accreditation" institutions. A methodology is required for data quality evaluation. There are studies for data quality including ISO standards, academic studies and software to evaluate spatial data quality. ISO 19157 standard defines the data quality elements. Proprietary software such as, 1Spatial's 1Validate and ESRI's Data Reviewer offers quality evaluation based on their own classification of rules. Commonly, rule based approaches are used for geospatial data quality check. In this study, we look for the technical components to devise and implement a rule based approach with ontologies using free and open source software in semantic web context. Semantic web uses ontologies to deliver well-defined web resources and make them accessible to end-users and processes. We have created an ontology conforming to the geospatial data and defined some sample rules to show how to test data with respect to data quality elements including; attribute, topo-semantic and geometrical consistency using free and open source software. To test data against rules, sample GeoSPARQL queries are created, associated with specifications.

21 CFR 1310.08 - Excluded transactions.

Code of Federal Regulations, 2012 CFR

2012-04-01

... including anhydrous hydrogen chloride. (b) Exports, transshipments, and international transactions of hydrochloric (including anhydrous hydrogen chloride) and sulfuric acids, except for exports, transshipments and... less, and no greater than one package per transaction. (g) Import transactions of anhydrous hydrogen...

21 CFR 1310.08 - Excluded transactions.

Code of Federal Regulations, 2013 CFR

2013-04-01

... including anhydrous hydrogen chloride. (b) Exports, transshipments, and international transactions of hydrochloric (including anhydrous hydrogen chloride) and sulfuric acids, except for exports, transshipments and... less, and no greater than one package per transaction. (g) Import transactions of anhydrous hydrogen...

21 CFR 1310.08 - Excluded transactions.

Code of Federal Regulations, 2011 CFR

2011-04-01

... including anhydrous hydrogen chloride. (b) Exports, transshipments, and international transactions of hydrochloric (including anhydrous hydrogen chloride) and sulfuric acids, except for exports, transshipments and... less, and no greater than one package per transaction. (g) Import transactions of anhydrous hydrogen...

21 CFR 1310.08 - Excluded transactions.

Code of Federal Regulations, 2014 CFR

2014-04-01

... including anhydrous hydrogen chloride. (b) Exports, transshipments, and international transactions of hydrochloric (including anhydrous hydrogen chloride) and sulfuric acids, except for exports, transshipments and... less, and no greater than one package per transaction. (g) Import transactions of anhydrous hydrogen...

The View from the Top of the Mountain: Building a Community of Practice with the GridWise Transactive Energy Framework

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

Forfia, David; Knight, Mark; Melton, Ron

The topic of “transactive energy” has received growing attention over the past eighteen months. It has been a part, for example, of the NY Reforming the Energy Vision discussions and the topic of activities such as the National Institute of Standards Transactive Energy Challenge. The growing discussion stems from the realization that new approaches are needed to efficiently and reliably integrate growing numbers of distributed energy resources. In anticipation of the applicability of transactive energy systems to emerging challenges in Grid integration, the GridWise® Architecture Council (GWAC) began to build a community of practice in the area of transactive energymore » systems. Starting with a workshop on the topic of “transactive energy” in May 2011, the Council brought together about a dozen interested researchers and practitioners from utilities, vendors, labs and academia to compare their approaches and experience in order to create common definitions and understanding within this topical area. This was followed in March 2012 with a second workshop during which about twice as many attendees continued the discussion. At this workshop the need for both a roadmap and a document documenting the foundations of transactive energy, common vocabulary and other definitional aspects was recognized. These two workshops led to the Council organizing the First International Conference and Workshop on Transactive Energy which took place May 23 – 24, 2013 in Portland, Oregon. The Council has continued this work with additional topical workshops, the Second International Conference and Workshop on Transactive Energy held in December 2014, and is currently organizing the Third International Conference and Workshop on Transactive Energy Systems to be held in May 2016. This article provides a summary of the Council’s work to build the community of practice through creation of a Transactive Energy Framework document and related activities. In addition to seeing transactive energy discussions on the agenda for many conferences there are also group activities relating to transactive energy being coordinated by both NIST and SGIP with which GWAC is also involved. The NIST work aims to develop and enhance modeling and simulation tools and integration into modeling and simulation platforms for Transactive Energy evaluation, as well as demonstrate how different transactive approaches may be used to improve reliability and efficiency of the electric grid. This will be accomplished through development of a set of scenarios that can serve as ongoing reference points for modeling and simulation. It is also an example of helping to develop a Transactive Energy community. The ongoing Transactive Energy Coordination Group formed by SGIP reviews the progress and directions of transactive energy activities in related parts of the SGIP and collaborating organizations such as GWAC. One of its activities is assembling a core set of transactive energy use cases as representative of the transactive energy interface requirements. This will enable assessment of interoperability requirements for transactive energy applications and an analysis of standards coverage, gaps, and future needs.« less

2 CFR 1400.215 - Which nonprocurement transactions, in addition to those listed in 2 CFR 180.215, are not covered...

Code of Federal Regulations, 2011 CFR

2011-01-01

... 2 Grants and Agreements 1 2011-01-01 2011-01-01 false Which nonprocurement transactions, in addition to those listed in 2 CFR 180.215, are not covered transactions? 1400.215 Section 1400.215 Grants... addition to those listed in 2 CFR 180.215, are not covered transactions? (a) Transactions entered into...

How to increase the benefits of cooperation: Effects of training in transactive communication on cooperative learning.

PubMed

Jurkowski, Susanne; Hänze, Martin

2015-09-01

Transactive communication means referring to and building on a learning partner's idea, by, for example, extending the partner's idea or interlinking the partner's idea with an idea of one's own. This transforms the partner's idea into a more elaborate one. Previous research found a positive relationship between students' transactive communication and their learning results when working in small groups. To increase the benefits of cooperation, we developed and tested a module for training students in transactive communication. We assumed that this training would enhance students' transactive communication and also increase their knowledge acquisition during cooperative learning. Further, we distinguished between an actor's transactive communication and a learning partner's transactive communication and expected both to be positively associated with an actor's knowledge acquisition. Participants were 80 university students. In an experiment with pre- and post-test measurements, transactive communication was measured by coding students' communication in a cooperative learning situation before training and in another cooperative learning situation after training. For the post-test cooperative learning situation, knowledge was pre-tested and post-tested. Trained students outperformed controls in transactive communication and in knowledge acquisition. Positive training effects on actors' knowledge acquisition were partially mediated by the improved actors' transactive communication. Moreover, actors' knowledge acquisition was positively influenced by learning partners' transactive communication. Results show a meaningful increase in the benefits of cooperation through the training in transactive communication. Furthermore, findings indicate that students benefit from both elaborating on their partner's ideas and having their own ideas elaborated on. © 2015 The British Psychological Society.

A transaction assessment method for allocation of transmission services

NASA Astrophysics Data System (ADS)

Banunarayanan, Venkatasubramaniam

The purpose of this research is to develop transaction assessment methods for allocating transmission services that are provided by an area/utility to power transactions. Transmission services are the services needed to deliver, or provide the capacity to deliver, real and reactive power from one or more supply points to one or more delivery points. As the number of transactions increase rapidly in the emerging deregulated environment, accurate quantification of the transmission services an area/utility provides to accommodate a transaction is becoming important, because then appropriate pricing schemes can be developed to compensate for the parties that provide these services. The Allocation methods developed are based on the "Fair Resource Allocation Principle" and they determine for each transaction the following: the flowpath of the transaction (both real and reactive power components), generator reactive power support from each area/utility, real power loss support from each area/utility. Further, allocation methods for distributing the cost of relieving congestion on transmission lines caused by transactions are also developed. The main feature of the proposed methods is representation of actual usage of the transmission services by the transactions. The proposed method is tested extensively on a variety of systems. The allocation methods developed in this thesis for allocation of transmission services to transactions is not only useful in studying the impact of transactions on a transmission system in a multi-transaction case, but they are indeed necessary to meet the criteria set forth by FERC with regard to pricing based on actual usage. The "consistency" of the proposed allocation methods has also been investigated and tested.

Transactional Sex With Regular and Casual Partners Among Young Men Who Have Sex With Men in the Detroit Metro Area.

PubMed

Bauermeister, José A; Eaton, Lisa; Meanley, Steven; Pingel, Emily S

2017-05-01

Transactional sex refers to the commodification of the body in exchange for shelter, food, and other goods and needs. Transactional sex has been associated with negative health outcomes including HIV infection, psychological distress, and substance use and abuse. Compared with the body of research examining transactional sex among women, less is known about the prevalence and correlates of transactional sex among men. Using data from a cross-sectional survey of young men who have sex with men (ages 18-29) living in the Detroit Metro Area ( N = 357; 9% HIV infected; 49% Black, 26% White, 16% Latino, 9% Other race), multivariate logistic regression analyses examined the association between transactional sex with regular and casual partners and key psychosocial factors (e.g., race/ethnicity, education, poverty, relationship status, HIV status, prior sexually transmitted infections [STIs], mental health, substance use, and residential instability) previously identified in the transactional sex literature. Forty-four percent of the current sample reported engaging in transactional sex. Transactional sex was associated with age, employment status, relationship status, and anxiety symptoms. When stratified, transactional sex with a regular partner was associated with age, educational attainment, employment status, relationship status, anxiety, and alcohol use. Transactional sex with a casual partner was associated with homelessness, race/ethnicity, employment status, and hard drug use. The implications of these findings for HIV/STI prevention are discussed, including the notion that efforts to address HIV/STIs among young men who have sex with men may require interventions to consider experiences of transactional sex and the psychosocial contexts that may increase its likelihood.

Reproducibility of dynamic contrast-enhanced MRI and dynamic susceptibility contrast MRI in the study of brain gliomas: a comparison of data obtained using different commercial software.

PubMed

Conte, Gian Marco; Castellano, Antonella; Altabella, Luisa; Iadanza, Antonella; Cadioli, Marcello; Falini, Andrea; Anzalone, Nicoletta

2017-04-01

Dynamic susceptibility contrast MRI (DSC) and dynamic contrast-enhanced MRI (DCE) are useful tools in the diagnosis and follow-up of brain gliomas; nevertheless, both techniques leave the open issue of data reproducibility. We evaluated the reproducibility of data obtained using two different commercial software for perfusion maps calculation and analysis, as one of the potential sources of variability can be the software itself. DSC and DCE analyses from 20 patients with gliomas were tested for both the intrasoftware (as intraobserver and interobserver reproducibility) and the intersoftware reproducibility, as well as the impact of different postprocessing choices [vascular input function (VIF) selection and deconvolution algorithms] on the quantification of perfusion biomarkers plasma volume (Vp), volume transfer constant (K trans ) and rCBV. Data reproducibility was evaluated with the intraclass correlation coefficient (ICC) and Bland-Altman analysis. For all the biomarkers, the intra- and interobserver reproducibility resulted in almost perfect agreement in each software, whereas for the intersoftware reproducibility the value ranged from 0.311 to 0.577, suggesting fair to moderate agreement; Bland-Altman analysis showed high dispersion of data, thus confirming these findings. Comparisons of different VIF estimation methods for DCE biomarkers resulted in ICC of 0.636 for K trans and 0.662 for Vp; comparison of two deconvolution algorithms in DSC resulted in an ICC of 0.999. The use of single software ensures very good intraobserver and interobservers reproducibility. Caution should be taken when comparing data obtained using different software or different postprocessing within the same software, as reproducibility is not guaranteed anymore.

Static and Dynamic Verification of Critical Software for Space Applications

NASA Astrophysics Data System (ADS)

Moreira, F.; Maia, R.; Costa, D.; Duro, N.; Rodríguez-Dapena, P.; Hjortnaes, K.

Space technology is no longer used only for much specialised research activities or for sophisticated manned space missions. Modern society relies more and more on space technology and applications for every day activities. Worldwide telecommunications, Earth observation, navigation and remote sensing are only a few examples of space applications on which we rely daily. The European driven global navigation system Galileo and its associated applications, e.g. air traffic management, vessel and car navigation, will significantly expand the already stringent safety requirements for space based applications Apart from their usefulness and practical applications, every single piece of onboard software deployed into the space represents an enormous investment. With a long lifetime operation and being extremely difficult to maintain and upgrade, at least when comparing with "mainstream" software development, the importance of ensuring their correctness before deployment is immense. Verification &Validation techniques and technologies have a key role in ensuring that the onboard software is correct and error free, or at least free from errors that can potentially lead to catastrophic failures. Many RAMS techniques including both static criticality analysis and dynamic verification techniques have been used as a means to verify and validate critical software and to ensure its correctness. But, traditionally, these have been isolated applied. One of the main reasons is the immaturity of this field in what concerns to its application to the increasing software product(s) within space systems. This paper presents an innovative way of combining both static and dynamic techniques exploiting their synergy and complementarity for software fault removal. The methodology proposed is based on the combination of Software FMEA and FTA with Fault-injection techniques. The case study herein described is implemented with support from two tools: The SoftCare tool for the SFMEA and SFTA, and the Xception tool for fault-injection. Keywords: Verification &Validation, RAMS, Onboard software, SFMEA, STA, Fault-injection 1 This work is being performed under the project STADY Applied Static And Dynamic Verification Of Critical Software, ESA/ESTEC Contract Nr. 15751/02/NL/LvH.

Logic design for dynamic and interactive recovery.

NASA Technical Reports Server (NTRS)

Carter, W. C.; Jessep, D. C.; Wadia, A. B.; Schneider, P. R.; Bouricius, W. G.

1971-01-01

Recovery in a fault-tolerant computer means the continuation of system operation with data integrity after an error occurs. This paper delineates two parallel concepts embodied in the hardware and software functions required for recovery; detection, diagnosis, and reconfiguration for hardware, data integrity, checkpointing, and restart for the software. The hardware relies on the recovery variable set, checking circuits, and diagnostics, and the software relies on the recovery information set, audit, and reconstruct routines, to characterize the system state and assist in recovery when required. Of particular utility is a handware unit, the recovery control unit, which serves as an interface between error detection and software recovery programs in the supervisor and provides dynamic interactive recovery.

77 FR 17328 - Commodity Pool Operators and Commodity Trading Advisors: Compliance Obligations

Federal Register 2010, 2011, 2012, 2013, 2014

2012-03-26

..., for each such retail forex transaction, by calculating the value in U.S. Dollars for such transaction... forex transaction, by calculating the value in U.S. Dollars of such transaction, at the time the...

45 CFR 162.1901 - Medicaid pharmacy subrogation transaction.

Code of Federal Regulations, 2012 CFR

2012-10-01

... 45 Public Welfare 1 2012-10-01 2012-10-01 false Medicaid pharmacy subrogation transaction. 162... STANDARDS AND RELATED REQUIREMENTS ADMINISTRATIVE REQUIREMENTS Medicaid Pharmacy Subrogation § 162.1901 Medicaid pharmacy subrogation transaction. The Medicaid pharmacy subrogation transaction is the...

45 CFR 162.1901 - Medicaid pharmacy subrogation transaction.

Code of Federal Regulations, 2010 CFR

2010-10-01

... 45 Public Welfare 1 2010-10-01 2010-10-01 false Medicaid pharmacy subrogation transaction. 162... STANDARDS AND RELATED REQUIREMENTS ADMINISTRATIVE REQUIREMENTS Medicaid Pharmacy Subrogation § 162.1901 Medicaid pharmacy subrogation transaction. The Medicaid pharmacy subrogation transaction is the...

45 CFR 162.1901 - Medicaid pharmacy subrogation transaction.

Code of Federal Regulations, 2014 CFR

2014-10-01

... 45 Public Welfare 1 2014-10-01 2014-10-01 false Medicaid pharmacy subrogation transaction. 162... STANDARDS AND RELATED REQUIREMENTS ADMINISTRATIVE REQUIREMENTS Medicaid Pharmacy Subrogation § 162.1901 Medicaid pharmacy subrogation transaction. The Medicaid pharmacy subrogation transaction is the...

45 CFR 162.1901 - Medicaid pharmacy subrogation transaction.

Code of Federal Regulations, 2011 CFR

2011-10-01

... 45 Public Welfare 1 2011-10-01 2011-10-01 false Medicaid pharmacy subrogation transaction. 162... STANDARDS AND RELATED REQUIREMENTS ADMINISTRATIVE REQUIREMENTS Medicaid Pharmacy Subrogation § 162.1901 Medicaid pharmacy subrogation transaction. The Medicaid pharmacy subrogation transaction is the...

45 CFR 162.1901 - Medicaid pharmacy subrogation transaction.

Code of Federal Regulations, 2013 CFR

2013-10-01

... 45 Public Welfare 1 2013-10-01 2013-10-01 false Medicaid pharmacy subrogation transaction. 162... STANDARDS AND RELATED REQUIREMENTS ADMINISTRATIVE REQUIREMENTS Medicaid Pharmacy Subrogation § 162.1901 Medicaid pharmacy subrogation transaction. The Medicaid pharmacy subrogation transaction is the...

The Effect of Dynamic Software on Prospective Mathematics Teachers' Perceptions Regarding Information and Communication Technology

ERIC Educational Resources Information Center

Tatar, Enver

2013-01-01

The aim of this study was to determine the effect of dynamic software on prospective mathematics teachers' perception levels regarding information and communication technology (ICT). The study was conducted with senior prospective teachers studying in a department of secondary mathematics education. The data of the study used both quantitative and…

Teaching Locus with a Conserved Property by Integrating Mathematical Tools and Dynamic Geometric Software

ERIC Educational Resources Information Center

Stupel, Moshe; Segal, Ruti; Oxman, Victor

2016-01-01

In this article, we present investigative tasks that concern loci, which integrate the use of dynamic geometry software (DGS) with mathematics for proving the obtained figures. Additional conditions were added to the loci: ellipse, parabola and circle, which result in the emergence of new loci, similar in form to the original loci. The…

The Role of Dynamic Software in the Identification and Construction of Mathematical Relationships

ERIC Educational Resources Information Center

Santos-Trigo, Manuel

2004-01-01

What features of mathematical thinking do students exhibit when they use dynamic software in their problem solving approaches? To what extent does the systematic use of technology favour students' development of problem solving competences? What type of reasoning do students develop as a result of using a particular tool? This study documents…

Using Dynamic Software in Mathematics: The Case of Reflection Symmetry

ERIC Educational Resources Information Center

Tatar, Enver; Akkaya, Adnan; Kagizmanli, Türkan Berrin

2014-01-01

This study was carried out to examine the effects of computer-assisted instruction (CAI) using dynamic software on the achievement of students in mathematics in the topic of reflection symmetry. The study also aimed to ascertain the pre-service mathematics teachers' opinions on the use of CAI in mathematics lessons. In the study, a mixed research…

Cabri-Geometre: Does Dynamic Geometry Software (DGS) Change Geometry and Its Teaching and Learning?

ERIC Educational Resources Information Center

Straesser, Rudolf

2001-01-01

Discusses geometry and Dynamical Geometry Software (DGS). Analyses the way DGS-use influences traditional geometry. Highlights changes in the interactions between geometry, computers, and DGS and human users, focusing on changes in the teaching and learning of geometry. Concludes that DGS deeply changes geometry if it is taken as a human activity…

Software conversion history of the Flight Dynamics System (FDS)

NASA Technical Reports Server (NTRS)

Liu, K.

1984-01-01

This report summarizes the overall history of the Flight Dynamics System (FDS) applications software conversion project. It describes the background and nature of the project; traces the actual course of conversion; assesses the process, product, and personnel involved; and offers suggestions for future projects. It also contains lists of pertinent reference material and examples of supporting data.

Using Dynamic Geometry Software to Improve Eight Grade Students' Understanding of Transformation Geometry

ERIC Educational Resources Information Center

Guven, Bulent

2012-01-01

This study examines the effect of dynamic geometry software (DGS) on students' learning of transformation geometry. A pre- and post-test quasi-experimental design was used. Participants in the study were 68 eighth grade students (36 in the experimental group and 32 in the control group). While the experimental group students were studying the…

Salient Beliefs of Secondary School Mathematics Teachers Using Dynamic Geometry Software

ERIC Educational Resources Information Center

Chan, Kan Kan

2015-01-01

Even though dynamic geometry software (DGS) is becoming an emergent instructional tool for mathematics teachers, many teachers are still in the process of consideration about whether to use it. In order to encourage teachers to use DGS, this study seeks to discover mathematics teachers' salient beliefs about the use of DGS in mathematics class.…

Why Don't All Maths Teachers Use Dynamic Geometry Software in Their Classrooms?

ERIC Educational Resources Information Center

Stols, Gerrit; Kriek, Jeanne

2011-01-01

In this exploratory study, we sought to examine the influence of mathematics teachers' beliefs on their intended and actual usage of dynamic mathematics software in their classrooms. The theory of planned behaviour (TPB), the technology acceptance model (TAM) and the innovation diffusion theory (IDT) were used to examine the influence of teachers'…

Software Surface Modeling and Grid Generation Steering Committee

NASA Technical Reports Server (NTRS)

Smith, Robert E. (Editor)

1992-01-01

It is a NASA objective to promote improvements in the capability and efficiency of computational fluid dynamics. Grid generation, the creation of a discrete representation of the solution domain, is an essential part of computational fluid dynamics. However, grid generation about complex boundaries requires sophisticated surface-model descriptions of the boundaries. The surface modeling and the associated computation of surface grids consume an extremely large percentage of the total time required for volume grid generation. Efficient and user friendly software systems for surface modeling and grid generation are critical for computational fluid dynamics to reach its potential. The papers presented here represent the state-of-the-art in software systems for surface modeling and grid generation. Several papers describe improved techniques for grid generation.

Computational methods and software systems for dynamics and control of large space structures

NASA Technical Reports Server (NTRS)

Park, K. C.; Felippa, C. A.; Farhat, C.; Pramono, E.

1990-01-01

This final report on computational methods and software systems for dynamics and control of large space structures covers progress to date, projected developments in the final months of the grant, and conclusions. Pertinent reports and papers that have not appeared in scientific journals (or have not yet appeared in final form) are enclosed. The grant has supported research in two key areas of crucial importance to the computer-based simulation of large space structure. The first area involves multibody dynamics (MBD) of flexible space structures, with applications directed to deployment, construction, and maneuvering. The second area deals with advanced software systems, with emphasis on parallel processing. The latest research thrust in the second area, as reported here, involves massively parallel computers.

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

Walker, La Tonya Nicole; Malczynski, Leonard A.

DYNAMO is a computer program for building and running 'continuous' simulation models. It was developed by the Industrial Dynamics Group at the Massachusetts Institute of Technology for simulating dynamic feedback models of business, economic, and social systems. The history of the system dynamics method since 1957 includes many classic models built in DYANMO. It was not until the late 1980s that software was built to take advantage of the rise of personal computers and graphical user interfaces that DYNAMO was supplanted. There is much learning and insight to be gained from examining the DYANMO models and their accompanying research papers.more » We believe that it is a worthwhile exercise to convert DYNAMO models to more recent software packages. We have made an attempt to make it easier to turn these models into a more current system dynamics software language, Powersim © Studio produced by Powersim AS 2 of Bergen, Norway. This guide shows how to convert DYNAMO syntax into Studio syntax.« less

Propulsive Reaction Control System Model

NASA Technical Reports Server (NTRS)

Brugarolas, Paul; Phan, Linh H.; Serricchio, Frederick; San Martin, Alejandro M.

2011-01-01

This software models a propulsive reaction control system (RCS) for guidance, navigation, and control simulation purposes. The model includes the drive electronics, the electromechanical valve dynamics, the combustion dynamics, and thrust. This innovation follows the Mars Science Laboratory entry reaction control system design, and has been created to meet the Mars Science Laboratory (MSL) entry, descent, and landing simulation needs. It has been built to be plug-and-play on multiple MSL testbeds [analysis, Monte Carlo, flight software development, hardware-in-the-loop, and ATLO (assembly, test and launch operations) testbeds]. This RCS model is a C language program. It contains two main functions: the RCS electronics model function that models the RCS FPGA (field-programmable-gate-array) processing and commanding of the RCS valve, and the RCS dynamic model function that models the valve and combustion dynamics. In addition, this software provides support functions to initialize the model states, set parameters, access model telemetry, and access calculated thruster forces.

Hardware for dynamic quantum computing.

PubMed

Ryan, Colm A; Johnson, Blake R; Ristè, Diego; Donovan, Brian; Ohki, Thomas A

2017-10-01

We describe the hardware, gateware, and software developed at Raytheon BBN Technologies for dynamic quantum information processing experiments on superconducting qubits. In dynamic experiments, real-time qubit state information is fed back or fed forward within a fraction of the qubits' coherence time to dynamically change the implemented sequence. The hardware presented here covers both control and readout of superconducting qubits. For readout, we created a custom signal processing gateware and software stack on commercial hardware to convert pulses in a heterodyne receiver into qubit state assignments with minimal latency, alongside data taking capability. For control, we developed custom hardware with gateware and software for pulse sequencing and steering information distribution that is capable of arbitrary control flow in a fraction of superconducting qubit coherence times. Both readout and control platforms make extensive use of field programmable gate arrays to enable tailored qubit control systems in a reconfigurable fabric suitable for iterative development.

LIMAO: Cross-platform software for simulating laser-induced alignment and orientation dynamics of linear-, symmetric- and asymmetric tops

NASA Astrophysics Data System (ADS)

Szidarovszky, Tamás; Jono, Maho; Yamanouchi, Kaoru

2018-07-01

A user-friendly and cross-platform software called Laser-Induced Molecular Alignment and Orientation simulator (LIMAO) has been developed. The program can be used to simulate within the rigid rotor approximation the rotational dynamics of gas phase molecules induced by linearly polarized intense laser fields at a given temperature. The software is implemented in the Java and Mathematica programming languages. The primary aim of LIMAO is to aid experimental scientists in predicting and analyzing experimental data representing laser-induced spatial alignment and orientation of molecules.

What's Happening in the Software Engineering Laboratory?

NASA Technical Reports Server (NTRS)

Pajerski, Rose; Green, Scott; Smith, Donald

1995-01-01

Since 1976 the Software Engineering Laboratory (SEL) has been dedicated to understanding and improving the way in which one NASA organization the Flight Dynamics Division (FDD) at Goddard Space Flight Center, develops, maintains, and manages complex flight dynamics systems. This paper presents an overview of recent activities and studies in SEL, using as a framework the SEL's organizational goals and experience based software improvement approach. It focuses on two SEL experience areas : (1) the evolution of the measurement program and (2) an analysis of three generations of Cleanroom experiments.

77 FR 54862 - Integrated Hedging Transactions of Qualifying Debt

Federal Register 2010, 2011, 2012, 2013, 2014

2012-09-06

... Integrated Hedging Transactions of Qualifying Debt AGENCY: Internal Revenue Service (IRS), Treasury. ACTION... certain integrated transactions that involve a foreign currency denominated debt instrument and multiple... foreign currency denominated debt instrument and multiple associated hedging transactions. The text of...

Transaction-Based Building Controls Framework, Volume 1: Reference Guide

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

Somasundaram, Sriram; Pratt, Robert G.; Akyol, Bora A.

This document proposes a framework concept to achieve the objectives of raising buildings’ efficiency and energy savings potential benefitting building owners and operators. We call it a transaction-based framework, wherein mutually-beneficial and cost-effective market-based transactions can be enabled between multiple players across different domains. Transaction-based building controls are one part of the transactional energy framework. While these controls realize benefits by enabling automatic, market-based intra-building efficiency optimizations, the transactional energy framework provides similar benefits using the same market -based structure, yet on a larger scale and beyond just buildings, to the society at large.

On Revenue-Optimal Dynamic Auctions for Bidders with Interdependent Values

NASA Astrophysics Data System (ADS)

Constantin, Florin; Parkes, David C.

In a dynamic market, being able to update one's value based on information available to other bidders currently in the market can be critical to having profitable transactions. This is nicely captured by the model of interdependent values (IDV): a bidder's value can explicitly depend on the private information of other bidders. In this paper we present preliminary results about the revenue properties of dynamic auctions for IDV bidders. We adopt a computational approach to design single-item revenue-optimal dynamic auctions with known arrivals and departures but (private) signals that arrive online. In leveraging a characterization of truthful auctions, we present a mixed-integer programming formulation of the design problem. Although a discretization is imposed on bidder signals the solution is a mechanism applicable to continuous signals. The formulation size grows exponentially in the dependence of bidders' values on other bidders' signals. We highlight general properties of revenue-optimal dynamic auctions in a simple parametrized example and study the sensitivity of prices and revenue to model parameters.

Geometric Data Perturbation-Based Personal Health Record Transactions in Cloud Computing

PubMed Central

Balasubramaniam, S.; Kavitha, V.

2015-01-01

Cloud computing is a new delivery model for information technology services and it typically involves the provision of dynamically scalable and often virtualized resources over the Internet. However, cloud computing raises concerns on how cloud service providers, user organizations, and governments should handle such information and interactions. Personal health records represent an emerging patient-centric model for health information exchange, and they are outsourced for storage by third parties, such as cloud providers. With these records, it is necessary for each patient to encrypt their own personal health data before uploading them to cloud servers. Current techniques for encryption primarily rely on conventional cryptographic approaches. However, key management issues remain largely unsolved with these cryptographic-based encryption techniques. We propose that personal health record transactions be managed using geometric data perturbation in cloud computing. In our proposed scheme, the personal health record database is perturbed using geometric data perturbation and outsourced to the Amazon EC2 cloud. PMID:25767826

With string model to time series forecasting

NASA Astrophysics Data System (ADS)

Pinčák, Richard; Bartoš, Erik

2015-10-01

Overwhelming majority of econometric models applied on a long term basis in the financial forex market do not work sufficiently well. The reason is that transaction costs and arbitrage opportunity are not included, as this does not simulate the real financial markets. Analyses are not conducted on the non equidistant date but rather on the aggregate date, which is also not a real financial case. In this paper, we would like to show a new way how to analyze and, moreover, forecast financial market. We utilize the projections of the real exchange rate dynamics onto the string-like topology in the OANDA market. The latter approach allows us to build the stable prediction models in trading in the financial forex market. The real application of the multi-string structures is provided to demonstrate our ideas for the solution of the problem of the robust portfolio selection. The comparison with the trend following strategies was performed, the stability of the algorithm on the transaction costs for long trade periods was confirmed.

Geometric data perturbation-based personal health record transactions in cloud computing.

PubMed

Balasubramaniam, S; Kavitha, V

2015-01-01

Cloud computing is a new delivery model for information technology services and it typically involves the provision of dynamically scalable and often virtualized resources over the Internet. However, cloud computing raises concerns on how cloud service providers, user organizations, and governments should handle such information and interactions. Personal health records represent an emerging patient-centric model for health information exchange, and they are outsourced for storage by third parties, such as cloud providers. With these records, it is necessary for each patient to encrypt their own personal health data before uploading them to cloud servers. Current techniques for encryption primarily rely on conventional cryptographic approaches. However, key management issues remain largely unsolved with these cryptographic-based encryption techniques. We propose that personal health record transactions be managed using geometric data perturbation in cloud computing. In our proposed scheme, the personal health record database is perturbed using geometric data perturbation and outsourced to the Amazon EC2 cloud.

Mining dynamic noteworthy functions in software execution sequences.

PubMed

Zhang, Bing; Huang, Guoyan; Wang, Yuqian; He, Haitao; Ren, Jiadong

2017-01-01

As the quality of crucial entities can directly affect that of software, their identification and protection become an important premise for effective software development, management, maintenance and testing, which thus contribute to improving the software quality and its attack-defending ability. Most analysis and evaluation on important entities like codes-based static structure analysis are on the destruction of the actual software running. In this paper, from the perspective of software execution process, we proposed an approach to mine dynamic noteworthy functions (DNFM)in software execution sequences. First, according to software decompiling and tracking stack changes, the execution traces composed of a series of function addresses were acquired. Then these traces were modeled as execution sequences and then simplified so as to get simplified sequences (SFS), followed by the extraction of patterns through pattern extraction (PE) algorithm from SFS. After that, evaluating indicators inner-importance and inter-importance were designed to measure the noteworthiness of functions in DNFM algorithm. Finally, these functions were sorted by their noteworthiness. Comparison and contrast were conducted on the experiment results from two traditional complex network-based node mining methods, namely PageRank and DegreeRank. The results show that the DNFM method can mine noteworthy functions in software effectively and precisely.

Hierarchical Petascale Simulation Framework For Stress Corrosion Cracking

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

Grama, Ananth

2013-12-18

A number of major accomplishments resulted from the project. These include: • Data Structures, Algorithms, and Numerical Methods for Reactive Molecular Dynamics. We have developed a range of novel data structures, algorithms, and solvers (amortized ILU, Spike) for use with ReaxFF and charge equilibration. • Parallel Formulations of ReactiveMD (Purdue ReactiveMolecular Dynamics Package, PuReMD, PuReMD-GPU, and PG-PuReMD) for Messaging, GPU, and GPU Cluster Platforms. We have developed efficient serial, parallel (MPI), GPU (Cuda), and GPU Cluster (MPI/Cuda) implementations. Our implementations have been demonstrated to be significantly better than the state of the art, both in terms of performance and scalability.more » • Comprehensive Validation in the Context of Diverse Applications. We have demonstrated the use of our software in diverse systems, including silica-water, silicon-germanium nanorods, and as part of other projects, extended it to applications ranging from explosives (RDX) to lipid bilayers (biomembranes under oxidative stress). • Open Source Software Packages for Reactive Molecular Dynamics. All versions of our soft- ware have been released over the public domain. There are over 100 major research groups worldwide using our software. • Implementation into the Department of Energy LAMMPS Software Package. We have also integrated our software into the Department of Energy LAMMPS software package.« less

21 CFR 1404.970 - Nonprocurement transaction.

Code of Federal Regulations, 2010 CFR

2010-04-01

... 21 Food and Drugs 9 2010-04-01 2010-04-01 false Nonprocurement transaction. 1404.970 Section 1404.970 Food and Drugs OFFICE OF NATIONAL DRUG CONTROL POLICY GOVERNMENTWIDE DEBARMENT AND SUSPENSION (NONPROCUREMENT) Definitions § 1404.970 Nonprocurement transaction. (a) Nonprocurement transaction means any...

Transactional Sex With Regular and Casual Partners Among Young Men Who Have Sex With Men in the Detroit Metro Area

PubMed Central

Bauermeister, José A.; Eaton, Lisa; Meanley, Steven; Pingel, Emily S.

2015-01-01

Transactional sex refers to the commodification of the body in exchange for shelter, food, and other goods and needs. Transactional sex has been associated with negative health outcomes including HIV infection, psychological distress, and substance use and abuse. Compared with the body of research examining transactional sex among women, less is known about the prevalence and correlates of transactional sex among men. Using data from a cross-sectional survey of young men who have sex with men (ages 18-29) living in the Detroit Metro Area (N = 357; 9% HIV infected; 49% Black, 26% White, 16% Latino, 9% Other race), multivariate logistic regression analyses examined the association between transactional sex with regular and casual partners and key psychosocial factors (e.g., race/ethnicity, education, poverty, relationship status, HIV status, prior sexually transmitted infections [STIs], mental health, substance use, and residential instability) previously identified in the transactional sex literature. Forty-four percent of the current sample reported engaging in transactional sex. Transactional sex was associated with age, employment status, relationship status, and anxiety symptoms. When stratified, transactional sex with a regular partner was associated with age, educational attainment, employment status, relationship status, anxiety, and alcohol use. Transactional sex with a casual partner was associated with homelessness, race/ethnicity, employment status, and hard drug use. The implications of these findings for HIV/STI prevention are discussed, including the notion that efforts to address HIV/STIs among young men who have sex with men may require interventions to consider experiences of transactional sex and the psychosocial contexts that may increase its likelihood. PMID:26438470

CSMP (Continuous System Modeling Program) Modeling of Brushless DC Motors.

DTIC Science & Technology

1984-09-01

Characteristics of Fifteen HP Samarium Cobalt and Ferrite Based brushless DC Ictcrs j. Operated by the Same Power Conditioner ," IEEE Transactions on Pcwer stenM...paratus and Systeis, v. P -Ii-- -ry Demerdash, N.A. and Nehl.T.W., Dynamic Modeling cf Brushless DC Motor-Power Conditioner U if-- fo -- Iec tro me...III _J- _ o 0 NAVAL POSTGRADUATE SCHOOL Monterey, California •S THETIS CSMP MODEL{ING OF BRUSHLESS DC MOTORS by DTIC

Singular Perturbations and Time Scales in Modeling and Control of Dynamic Systems,

DTIC Science & Technology

1980-11-01

Madanic, "Closed-Loop Stackelberg Stategies for Singularly Perturbed Linear Quadratic Problem," IEEE Transactions on Automtic Control, Vol. AC-25, No...of the state variables. On the other hand the com- (15 damped high steqenc oscillalor mode cannsome o \\s/ del are not separable. In this ’ mixed ’ case...are found to be mixed and hence is not electromechanical Interactions and the single ma- suitable for direct state separation into a slow chine

Phoenix, a High-Performance UNIX with an Emphasis on Dynamic Modification, Real-Time Response and Survivability

DTIC Science & Technology

1990-01-12

Communications COM-28, (April 1980 ) 425-432. [6] Munch-Anderson, B. and T.U. Zahle, Scheduling According to Job Priority With Prevention of Deadlock and...Interconnection, IEEE Transactions on Communications COM-28, (April 1980 ) 425-432. (4] Cook, R.P., StarMod, A Language for Distributed Programming...Research Triangle Park, NC 27709-2211 Attention: Dr. David W. Hislop * Electronics Division 51 Dr. David W. Hislop Electronics Division U. S. Army Research

An Analysis of the Metrics Used in the United States Navy’s Enlisted Supply Chain As They Apply to the Royal Australian Navy

DTIC Science & Technology

2012-12-01

and Hill, 1988; Williamson, 1981), enhances socialization (Edwards, 1979), and lowers transaction costs ( Mahoney , 1992; Williamson, 1975). It does...much information as possible about its workforce to ensure it is managed effectively and efficiently (Davidson & Newman , 2006). Data measurement of...112 Cappelli, P. (2009b). A Supply Chain Approach to Workforce Planning. Organizational Dynamics, 38(1), 8–15. Davidson, G., & Newman , E

Modeling Respiratory Gas Dynamics in the Aviator’s Breathing System. Volume 2. Appendices

DTIC Science & Technology

1994-05-01

Rideout, at at. Dfference-Differentlat Equations for Fluid C... Flow in Distensible Tubes. IEEE Transactions on Bio-Medlcat C... Enginhering. Vot INE-14...McGraw-Hill; 1970; Chapter 13: 433-450. 12. Astrand, PO; Saltin, B. Oxygen uptake during the first minutes of heavy muscular exercise. J Appl Physiol...1802-1814; 1986. 233. Linehan, JH; Haworth, ST; Nelin, LD; Krenz, GS; Dawson, CA. A Simple Distensible Vessel Model for Interpreting Pulmonary

The Emergence of China in the Middle East (Strategic Forum, Number 271, December 2011)

DTIC Science & Technology

2011-12-01

of Iran, China’s arms trading activity goes beyond simple transactions to include transfer of designs, manufacturing techniques, and technology. A...benefited the region’s oil-exporting gov- ernments as well as consumers in the form of lower prices for imported Chinese goods. However, local nontechnical...receive any benefits in the form of jobs or monetary compensation.23 Similar dynamics have surfaced in other developing countries such as Zambia and

The Shock and Vibration Digest. Volume 17. Number 7

DTIC Science & Technology

1985-07-01

WORDS: Violins, Modal analysis Centro de Estudios c Investigaciones Tec- nicas de Guipu’coa, Barrio Ibaeta SIN, The vibrational behavior of a violin is...necessary in the transaction of business required by law of the De - partment of the Navy. Funds for printing of this publi- cation have been approved by...ground motion, amplified by the and much work has been done to improve dynamic response of a structure, that do elastomers. Other systems have been de

45 CFR 162.1801 - Coordination of benefits transaction.

Code of Federal Regulations, 2010 CFR

2010-10-01

... 45 Public Welfare 1 2010-10-01 2010-10-01 false Coordination of benefits transaction. 162.1801... RELATED REQUIREMENTS ADMINISTRATIVE REQUIREMENTS Coordination of Benefits § 162.1801 Coordination of benefits transaction. The coordination of benefits transaction is the transmission from any entity to a...

31 CFR 510.201 - Prohibited transactions.

Code of Federal Regulations, 2014 CFR

2014-07-01

... 31 Money and Finance:Treasury 3 2014-07-01 2014-07-01 false Prohibited transactions. 510.201 Section 510.201 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE... § 510.201 Prohibited transactions. (a) All transactions prohibited pursuant to Executive Order 13466 are...

31 CFR 510.201 - Prohibited transactions.

Code of Federal Regulations, 2011 CFR

2011-07-01

... 31 Money and Finance:Treasury 3 2011-07-01 2011-07-01 false Prohibited transactions. 510.201 Section 510.201 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE... § 510.201 Prohibited transactions. (a) All transactions prohibited pursuant to Executive Order 13466 are...

31 CFR 510.201 - Prohibited transactions.

Code of Federal Regulations, 2013 CFR

2013-07-01

... 31 Money and Finance:Treasury 3 2013-07-01 2013-07-01 false Prohibited transactions. 510.201 Section 510.201 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE... § 510.201 Prohibited transactions. (a) All transactions prohibited pursuant to Executive Order 13466 are...

22 CFR 513.220 - Continuation of covered transactions.

Code of Federal Regulations, 2010 CFR

2010-04-01

... and participants shall not renew or extend covered transactions (other than no-cost time extensions... 22 Foreign Relations 2 2010-04-01 2010-04-01 true Continuation of covered transactions. 513.220... Continuation of covered transactions. (a) Notwithstanding the debarment, suspension, proposed debarment under...

24 CFR 100.110 - Discriminatory practices in residential real estate-related transactions.

Code of Federal Regulations, 2010 CFR

2010-04-01

... residential real estate-related transactions. 100.110 Section 100.110 Housing and Urban Development... Discrimination in Residential Real Estate-Related Transactions § 100.110 Discriminatory practices in residential real estate-related transactions. (a) This subpart provides the Department's interpretation of the...

24 CFR 100.110 - Discriminatory practices in residential real estate-related transactions.

Code of Federal Regulations, 2013 CFR

2013-04-01

... residential real estate-related transactions. 100.110 Section 100.110 Housing and Urban Development... Discrimination in Residential Real Estate-Related Transactions § 100.110 Discriminatory practices in residential real estate-related transactions. (a) This subpart provides the Department's interpretation of the...

24 CFR 100.110 - Discriminatory practices in residential real estate-related transactions.

Code of Federal Regulations, 2014 CFR

2014-04-01

... residential real estate-related transactions. 100.110 Section 100.110 Housing and Urban Development... Discrimination in Residential Real Estate-Related Transactions § 100.110 Discriminatory practices in residential real estate-related transactions. (a) This subpart provides the Department's interpretation of the...

24 CFR 100.110 - Discriminatory practices in residential real estate-related transactions.

Code of Federal Regulations, 2012 CFR

2012-04-01

... residential real estate-related transactions. 100.110 Section 100.110 Housing and Urban Development... Discrimination in Residential Real Estate-Related Transactions § 100.110 Discriminatory practices in residential real estate-related transactions. (a) This subpart provides the Department's interpretation of the...

24 CFR 100.110 - Discriminatory practices in residential real estate-related transactions.

Code of Federal Regulations, 2011 CFR

2011-04-01

... residential real estate-related transactions. 100.110 Section 100.110 Housing and Urban Development... Discrimination in Residential Real Estate-Related Transactions § 100.110 Discriminatory practices in residential real estate-related transactions. (a) This subpart provides the Department's interpretation of the...

17 CFR 5.2 - Prohibited transactions.

Code of Federal Regulations, 2011 CFR

2011-04-01

... 17 Commodity and Securities Exchanges 1 2011-04-01 2011-04-01 false Prohibited transactions. 5.2 Section 5.2 Commodity and Securities Exchanges COMMODITY FUTURES TRADING COMMISSION OFF-EXCHANGE FOREIGN CURRENCY TRANSACTIONS § 5.2 Prohibited transactions. (a) Scope. The provisions of this section shall be...

31 CFR 800.214 - Foreign government-controlled transaction.

Code of Federal Regulations, 2014 CFR

2014-07-01

... 31 Money and Finance:Treasury 3 2014-07-01 2014-07-01 false Foreign government-controlled..., ACQUISITIONS, AND TAKEOVERS BY FOREIGN PERSONS Definitions § 800.214 Foreign government-controlled transaction. The term foreign government-controlled transaction means any covered transaction that could result in...

31 CFR 800.214 - Foreign government-controlled transaction.

Code of Federal Regulations, 2012 CFR

2012-07-01

... 31 Money and Finance:Treasury 3 2012-07-01 2012-07-01 false Foreign government-controlled..., ACQUISITIONS, AND TAKEOVERS BY FOREIGN PERSONS Definitions § 800.214 Foreign government-controlled transaction. The term foreign government-controlled transaction means any covered transaction that could result in...

31 CFR 800.214 - Foreign government-controlled transaction.

Code of Federal Regulations, 2013 CFR

2013-07-01

... 31 Money and Finance:Treasury 3 2013-07-01 2013-07-01 false Foreign government-controlled..., ACQUISITIONS, AND TAKEOVERS BY FOREIGN PERSONS Definitions § 800.214 Foreign government-controlled transaction. The term foreign government-controlled transaction means any covered transaction that could result in...

17 CFR 31.17 - Records of leverage transactions.

Code of Federal Regulations, 2010 CFR

2010-04-01

... 17 Commodity and Securities Exchanges 1 2010-04-01 2010-04-01 false Records of leverage... LEVERAGE TRANSACTIONS § 31.17 Records of leverage transactions. (a) Each leverage transaction merchant receiving a leverage customer's order shall immediately upon receipt thereof prepare a written record of...

An information model for use in software management estimation and prediction

NASA Technical Reports Server (NTRS)

Li, Ningda R.; Zelkowitz, Marvin V.

1993-01-01

This paper describes the use of cluster analysis for determining the information model within collected software engineering development data at the NASA/GSFC Software Engineering Laboratory. We describe the Software Management Environment tool that allows managers to predict development attributes during early phases of a software project and the modifications we propose to allow it to develop dynamic models for better predictions of these attributes.

SIMA: Python software for analysis of dynamic fluorescence imaging data.

PubMed

Kaifosh, Patrick; Zaremba, Jeffrey D; Danielson, Nathan B; Losonczy, Attila

2014-01-01

Fluorescence imaging is a powerful method for monitoring dynamic signals in the nervous system. However, analysis of dynamic fluorescence imaging data remains burdensome, in part due to the shortage of available software tools. To address this need, we have developed SIMA, an open source Python package that facilitates common analysis tasks related to fluorescence imaging. Functionality of this package includes correction of motion artifacts occurring during in vivo imaging with laser-scanning microscopy, segmentation of imaged fields into regions of interest (ROIs), and extraction of signals from the segmented ROIs. We have also developed a graphical user interface (GUI) for manual editing of the automatically segmented ROIs and automated registration of ROIs across multiple imaging datasets. This software has been designed with flexibility in mind to allow for future extension with different analysis methods and potential integration with other packages. Software, documentation, and source code for the SIMA package and ROI Buddy GUI are freely available at http://www.losonczylab.org/sima/.

Viability of Cross-Flow Fan with Helical Blades for Vertical Take-off and Landing Aircraft

DTIC Science & Technology

2012-09-01

fluid dynamics (CFD) software, ANSYS - CFX , a three-dimensional (3-D) straight-bladed model was validated against previous study’s experimental results...computational fluid dynamics software (CFD), ANSYS - CFX , a three-dimensional (3-D) straight-bladed model was validated against previous study’s experimental...37 B. SIZING PARAMETERS AND ILLUSTRATION ................................. 37 APPENDIX B. ANSYS CFX PARAMETERS

Moving Target Techniques: Leveraging Uncertainty for Cyber Defense

DTIC Science & Technology

2015-08-24

vulnerability (a flaw or bug that an attacker can exploit to penetrate or disrupt a system) to successfully compromise systems. Defenders, however...device drivers, numerous software applications, and hardware components. Within the cyberspace, this imbalance between a simple, one- bug attack...parsing code itself could have security-relevant software bugs . Dynamic  Network   Techniques in the dynamic network domain change the properties

Using Dynamic Geometry Software GeoGebra in Developing Countries: A Case Study of Impressions of Mathematics Teachers in Nepal

ERIC Educational Resources Information Center

Mainali, Bhesh Raj; Key, Mary Beth

2012-01-01

This article describes a professional development initiative for fifteen mathematics teachers in the use of dynamic geometry software GeoGebra. A four-day introductory workshop was given in Nepal to provide an overview of GeoGebra and its possible integration in the teaching/learning of secondary school mathematics there. Teachers' impressions and…

The Role of Dynamic Geometry Software in High School Geometry Curricula: An Analysis of Proof Tasks

ERIC Educational Resources Information Center

Oner, Diler

2009-01-01

In this study, I examine the role of dynamic geometry software (DGS) in curricular proof tasks. I investigated seven US high school geometry textbooks that were categorised into three groups: technology-intensive, standards-based, and traditional curricula. I looked at the frequency and purpose of DGS use in these textbooks. In addition, I…

The Effect of Dynamic Geometry Software and Physical Manipulatives on Candidate Teachers' Transformational Geometry Success

ERIC Educational Resources Information Center

Yilmaz, Gül Kaleli

2015-01-01

This study aims to investigate the effects of using Dynamic Geometry Software (DGS) Cabri II Plus and physical manipulatives on the transformational geometry achievement of candidate teachers. In this study, the semi-experimental method was used, consisting of two experimental and one control groups. The samples of this study were 117 students. A…

Using Dynamic Geometry Software To Add Contrast to Geometric Situations--A Case Study.

ERIC Educational Resources Information Center

Holzl, Reinhard

2001-01-01

Uses of Dynamic Geometry Software (DGS) are often limited purely to a verifying role. Presents a case study that emerged from a project in which DGS formed an integral part of the pedagogical arrangement. The study demonstrates how the contrasting power of DGS might be utilized in a guided discovery setting. (Contains 17 references.) (Author/ASK)

The Effect of Using Dynamic Mathematics Software: Cross Section and Visualization

ERIC Educational Resources Information Center

Kösa, Temel

2016-01-01

The main purpose of this study is to determine the effects of using dynamic mathematics software on pre-service mathematics teachers' ability to infer the shape of a cross section of a three-dimensional solid, as well as on their spatial visualization skills. The study employed a quasi-experimental design with a control group; the Purdue Spatial…

Students' Learning Experiences When Using a Dynamic Geometry Software Tool in a Geometry Lesson at Secondary School in Ethiopia

ERIC Educational Resources Information Center

Denbel, Dejene Girma

2015-01-01

Students learning experiences were investigated in geometry lesson when using Dynamic Geometry Software (DGS) tool in geometry learning in 25 Ethiopian secondary students. The research data were drawn from the used worksheets, classroom observations, results of pre- and post-test, a questionnaire and interview responses. I used GeoGebra as a DGS…

Comet Gas and Dust Dynamics Modeling

NASA Technical Reports Server (NTRS)

Von Allmen, Paul A.; Lee, Seungwon

2010-01-01

This software models the gas and dust dynamics of comet coma (the head region of a comet) in order to support the Microwave Instrument for Rosetta Orbiter (MIRO) project. MIRO will study the evolution of the comet 67P/Churyumov-Gerasimenko's coma system. The instrument will measure surface temperature, gas-production rates and relative abundances, and velocity and excitation temperatures of each species along with their spatial temporal variability. This software will use these measurements to improve the understanding of coma dynamics. The modeling tool solves the equation of motion of a dust particle, the energy balance equation of the dust particle, the continuity equation for the dust and gas flow, and the dust and gas mixture energy equation. By solving these equations numerically, the software calculates the temperature and velocity of gas and dust as a function of time for a given initial gas and dust production rate, and a dust characteristic parameter that measures the ability of a dust particle to adjust its velocity to the local gas velocity. The software is written in a modular manner, thereby allowing the addition of more dynamics equations as needed. All of the numerical algorithms are added in-house and no third-party libraries are used.

Research on e-commerce transaction networks using multi-agent modelling and open application programming interface

NASA Astrophysics Data System (ADS)

Piao, Chunhui; Han, Xufang; Wu, Harris

2010-08-01

We provide a formal definition of an e-commerce transaction network. Agent-based modelling is used to simulate e-commerce transaction networks. For real-world analysis, we studied the open application programming interfaces (APIs) from eBay and Taobao e-commerce websites and captured real transaction data. Pajek is used to visualise the agent relationships in the transaction network. We derived one-mode networks from the transaction network and analysed them using degree and betweenness centrality. Integrating multi-agent modelling, open APIs and social network analysis, we propose a new way to study large-scale e-commerce systems.

Object Management Group object transaction service based on an X/Open and International Organization for Standardization open systems interconnection transaction processing kernel

NASA Astrophysics Data System (ADS)

Liang, J.; Sédillot, S.; Traverson, B.

1997-09-01

This paper addresses federation of a transactional object standard - Object Management Group (OMG) object transaction service (OTS) - with the X/Open distributed transaction processing (DTP) model and International Organization for Standardization (ISO) open systems interconnection (OSI) transaction processing (TP) communication protocol. The two-phase commit propagation rules within a distributed transaction tree are similar in the X/Open, ISO and OMG models. Building an OTS on an OSI TP protocol machine is possible because the two specifications are somewhat complementary. OTS defines a set of external interfaces without specific internal protocol machine, while OSI TP specifies an internal protocol machine without any application programming interface. Given these observations, and having already implemented an X/Open two-phase commit transaction toolkit based on an OSI TP protocol machine, we analyse the feasibility of using this implementation as a transaction service provider for OMG interfaces. Based on the favourable result of this feasibility study, we are implementing an OTS compliant system, which, by initiating the extensibility and openness strengths of OSI TP, is able to provide interoperability between X/Open DTP and OMG OTS models.

17 CFR 4.5 - Exclusion for certain otherwise regulated persons from the definition of the term “commodity pool...

Code of Federal Regulations, 2012 CFR

2012-04-01

... retail forex transaction, by calculating the value in U.S. Dollars for such transaction, at the time the... such retail forex transaction, by calculating the value in U.S. Dollars for such transaction, at the...

31 CFR 598.407 - Offshore transactions.

Code of Federal Regulations, 2010 CFR

2010-07-01

... 31 Money and Finance: Treasury 3 2010-07-01 2010-07-01 false Offshore transactions. 598.407 Section 598.407 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE... Interpretations § 598.407 Offshore transactions. The prohibitions contained in § 598.203 apply to transactions by...

17 CFR 229.1005 - (Item 1005) Past contacts, transactions, negotiations and agreements.

Code of Federal Regulations, 2013 CFR

2013-04-01

..., transactions, negotiations and agreements. 229.1005 Section 229.1005 Commodity and Securities Exchanges... Acquisitions (Regulation M-A) § 229.1005 (Item 1005) Past contacts, transactions, negotiations and agreements... events. Describe any negotiations, transactions or material contacts during the past two years between...

17 CFR 229.1005 - (Item 1005) Past contacts, transactions, negotiations and agreements.

Code of Federal Regulations, 2012 CFR

2012-04-01

..., transactions, negotiations and agreements. 229.1005 Section 229.1005 Commodity and Securities Exchanges... Acquisitions (Regulation M-A) § 229.1005 (Item 1005) Past contacts, transactions, negotiations and agreements... events. Describe any negotiations, transactions or material contacts during the past two years between...

17 CFR 229.1005 - (Item 1005) Past contacts, transactions, negotiations and agreements.

Code of Federal Regulations, 2010 CFR

2010-04-01

..., transactions, negotiations and agreements. 229.1005 Section 229.1005 Commodity and Securities Exchanges... Acquisitions (Regulation M-A) § 229.1005 (Item 1005) Past contacts, transactions, negotiations and agreements... events. Describe any negotiations, transactions or material contacts during the past two years between...

17 CFR 229.1005 - (Item 1005) Past contacts, transactions, negotiations and agreements.

Code of Federal Regulations, 2014 CFR

2014-04-01

..., transactions, negotiations and agreements. 229.1005 Section 229.1005 Commodity and Securities Exchanges... Acquisitions (Regulation M-A) § 229.1005 (Item 1005) Past contacts, transactions, negotiations and agreements... events. Describe any negotiations, transactions or material contacts during the past two years between...

17 CFR 229.1005 - (Item 1005) Past contacts, transactions, negotiations and agreements.

Code of Federal Regulations, 2011 CFR

2011-04-01

..., transactions, negotiations and agreements. 229.1005 Section 229.1005 Commodity and Securities Exchanges... Acquisitions (Regulation M-A) § 229.1005 (Item 1005) Past contacts, transactions, negotiations and agreements... events. Describe any negotiations, transactions or material contacts during the past two years between...

2 CFR 180.210 - Which nonprocurement transactions are covered transactions?

Code of Federal Regulations, 2010 CFR

2010-01-01

... 2 Grants and Agreements 1 2010-01-01 2010-01-01 false Which nonprocurement transactions are covered transactions? 180.210 Section 180.210 Grants and Agreements OFFICE OF MANAGEMENT AND BUDGET GOVERNMENTWIDE GUIDANCE FOR GRANTS AND AGREEMENTS Reserved OMB GUIDELINES TO AGENCIES ON GOVERNMENTWIDE DEBARMENT...

18 CFR 33.2 - Contents of application-general information requirements.

Code of Federal Regulations, 2012 CFR

2012-04-01

... post-transaction corporate structures (including any pending authorized but not implemented changes... that the proposed transaction does not affect the corporate structure of any party to the transaction... application); (5) The identity of common officers or directors of parties to the proposed transaction (to be...

18 CFR 33.2 - Contents of application-general information requirements.

Code of Federal Regulations, 2013 CFR

2013-04-01

... post-transaction corporate structures (including any pending authorized but not implemented changes... that the proposed transaction does not affect the corporate structure of any party to the transaction... application); (5) The identity of common officers or directors of parties to the proposed transaction (to be...

18 CFR 33.2 - Contents of application-general information requirements.

Code of Federal Regulations, 2011 CFR

2011-04-01

... post-transaction corporate structures (including any pending authorized but not implemented changes... that the proposed transaction does not affect the corporate structure of any party to the transaction... application); (5) The identity of common officers or directors of parties to the proposed transaction (to be...

18 CFR 33.2 - Contents of application-general information requirements.

Code of Federal Regulations, 2014 CFR

2014-04-01

... post-transaction corporate structures (including any pending authorized but not implemented changes... that the proposed transaction does not affect the corporate structure of any party to the transaction... application); (5) The identity of common officers or directors of parties to the proposed transaction (to be...

24 CFR 100.115 - Residential real estate-related transactions.

Code of Federal Regulations, 2011 CFR

2011-04-01

... 24 Housing and Urban Development 1 2011-04-01 2011-04-01 false Residential real estate-related... Estate-Related Transactions § 100.115 Residential real estate-related transactions. The term residential real estate-related transactions means: (a) The making or purchasing of loans or providing other...

24 CFR 100.115 - Residential real estate-related transactions.

Code of Federal Regulations, 2012 CFR

2012-04-01

... 24 Housing and Urban Development 1 2012-04-01 2012-04-01 false Residential real estate-related... Estate-Related Transactions § 100.115 Residential real estate-related transactions. The term residential real estate-related transactions means: (a) The making or purchasing of loans or providing other...

24 CFR 100.115 - Residential real estate-related transactions.

Code of Federal Regulations, 2014 CFR

2014-04-01

... 24 Housing and Urban Development 1 2014-04-01 2014-04-01 false Residential real estate-related... Estate-Related Transactions § 100.115 Residential real estate-related transactions. The term residential real estate-related transactions means: (a) The making or purchasing of loans or providing other...

24 CFR 100.115 - Residential real estate-related transactions.

Code of Federal Regulations, 2010 CFR

2010-04-01

... 24 Housing and Urban Development 1 2010-04-01 2010-04-01 false Residential real estate-related... Estate-Related Transactions § 100.115 Residential real estate-related transactions. The term residential real estate-related transactions means: (a) The making or purchasing of loans or providing other...

24 CFR 100.115 - Residential real estate-related transactions.

Code of Federal Regulations, 2013 CFR

2013-04-01

... 24 Housing and Urban Development 1 2013-04-01 2013-04-01 false Residential real estate-related... Estate-Related Transactions § 100.115 Residential real estate-related transactions. The term residential real estate-related transactions means: (a) The making or purchasing of loans or providing other...

Provisions in School Contracts: What to Include, What to Avoid

ERIC Educational Resources Information Center

Horner, Jeffrey J.

2011-01-01

Many factors distinguish public school district transactions from private business transactions. Like any other business transaction, public school contracts should unambiguously describe the transaction and sufficiently outline the obligations of the parties. However, public school districts may be subject to distinctive laws that effectively…

17 CFR 30.9 - Fraudulent transactions prohibited.

Code of Federal Regulations, 2010 CFR

2010-04-01

... prohibited. 30.9 Section 30.9 Commodity and Securities Exchanges COMMODITY FUTURES TRADING COMMISSION FOREIGN FUTURES AND FOREIGN OPTIONS TRANSACTIONS § 30.9 Fraudulent transactions prohibited. It shall be unlawful... foreign futures contract or foreign options transaction: (a) To cheat or defraud or attempt to cheat or...

Identifying and tracking dynamic processes in social networks

NASA Astrophysics Data System (ADS)

Chung, Wayne; Savell, Robert; Schütt, Jan-Peter; Cybenko, George

2006-05-01

The detection and tracking of embedded malicious subnets in an active social network can be computationally daunting due to the quantity of transactional data generated in the natural interaction of large numbers of actors comprising a network. In addition, detection of illicit behavior may be further complicated by evasive strategies designed to camouflage the activities of the covert subnet. In this work, we move beyond traditional static methods of social network analysis to develop a set of dynamic process models which encode various modes of behavior in active social networks. These models will serve as the basis for a new application of the Process Query System (PQS) to the identification and tracking of covert dynamic processes in social networks. We present a preliminary result from application of our technique in a real-world data stream-- the Enron email corpus.

Automation software for a materials testing laboratory

NASA Technical Reports Server (NTRS)

Mcgaw, Michael A.; Bonacuse, Peter J.

1990-01-01

The software environment in use at the NASA-Lewis Research Center's High Temperature Fatigue and Structures Laboratory is reviewed. This software environment is aimed at supporting the tasks involved in performing materials behavior research. The features and capabilities of the approach to specifying a materials test include static and dynamic control mode switching, enabling multimode test control; dynamic alteration of the control waveform based upon events occurring in the response variables; precise control over the nature of both command waveform generation and data acquisition; and the nesting of waveform/data acquisition strategies so that material history dependencies may be explored. To eliminate repetitive tasks in the coventional research process, a communications network software system is established which provides file interchange and remote console capabilities.

Flight dynamics software in a distributed network environment

NASA Technical Reports Server (NTRS)

Jeletic, J.; Weidow, D.; Boland, D.

1995-01-01

As with all NASA facilities, the announcement of reduced budgets, reduced staffing, and the desire to implement smaller/quicker/cheaper missions has required the Agency's organizations to become more efficient in what they do. To accomplish these objectives, the FDD has initiated the development of the Flight Dynamics Distributed System (FDDS). The underlying philosophy of FDDS is to build an integrated system that breaks down the traditional barriers of attitude, mission planning, and navigation support software to provide a uniform approach to flight dynamics applications. Through the application of open systems concepts and state-of-the-art technologies, including object-oriented specification concepts, object-oriented software, and common user interface, communications, data management, and executive services, the FDD will reengineer most of its six million lines of code.

31 CFR 515.527 - Certain transactions with respect to United States intellectual property.

Code of Federal Regulations, 2011 CFR

2011-07-01

... 31 Money and Finance:Treasury 3 2011-07-01 2011-07-01 false Certain transactions with respect to United States intellectual property. 515.527 Section 515.527 Money and Finance: Treasury Regulations... Certain transactions with respect to United States intellectual property. (a)(1) Transactions related to...

31 CFR 515.528 - Certain transactions with respect to blocked foreign intellectual property.

Code of Federal Regulations, 2011 CFR

2011-07-01

... 31 Money and Finance:Treasury 3 2011-07-01 2011-07-01 false Certain transactions with respect to blocked foreign intellectual property. 515.528 Section 515.528 Money and Finance: Treasury Regulations... Certain transactions with respect to blocked foreign intellectual property. (a) The following transactions...

31 CFR 515.528 - Certain transactions with respect to blocked foreign intellectual property.

Code of Federal Regulations, 2010 CFR

2010-07-01

... 31 Money and Finance: Treasury 3 2010-07-01 2010-07-01 false Certain transactions with respect to blocked foreign intellectual property. 515.528 Section 515.528 Money and Finance: Treasury Regulations... Certain transactions with respect to blocked foreign intellectual property. (a) The following transactions...

17 CFR 5.2 - Prohibited transactions.

Code of Federal Regulations, 2014 CFR

2014-04-01

... applicable to any retail forex transaction. (b) Fraudulent conduct prohibited. It shall be unlawful for any... indirectly, in or in connection with any retail forex transaction: (1) To cheat or defraud or attempt to... prohibited. (1) No person who acts as the counterparty for any retail forex transaction may do so for an...

17 CFR 5.2 - Prohibited transactions.

Code of Federal Regulations, 2012 CFR

2012-04-01

... applicable to any retail forex transaction. (b) Fraudulent conduct prohibited. It shall be unlawful for any... indirectly, in or in connection with any retail forex transaction: (1) To cheat or defraud or attempt to... prohibited. (1) No person who acts as the counterparty for any retail forex transaction may do so for an...

17 CFR 5.2 - Prohibited transactions.

Code of Federal Regulations, 2013 CFR

2013-04-01

... applicable to any retail forex transaction. (b) Fraudulent conduct prohibited. It shall be unlawful for any... indirectly, in or in connection with any retail forex transaction: (1) To cheat or defraud or attempt to... prohibited. (1) No person who acts as the counterparty for any retail forex transaction may do so for an...

77 FR 61330 - Policies Regarding Mobile Spectrum Holdings

Federal Register 2010, 2011, 2012, 2013, 2014

2012-10-09

... the transaction and is based on the size of the post-transaction Herfindahl-Hirschman Index (HHI) \\26... further case-by-case market analysis those markets in which, post-transaction, the HHI would be greater... De Facto Transfer Leasing Arrangements and Petition for Declaratory Ruling that the Transaction is...

31 CFR 598.407 - Offshore transactions.

Code of Federal Regulations, 2014 CFR

2014-07-01

... 31 Money and Finance:Treasury 3 2014-07-01 2014-07-01 false Offshore transactions. 598.407 Section 598.407 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF... Interpretations § 598.407 Offshore transactions. The prohibitions contained in § 598.203 apply to transactions by...

31 CFR 598.407 - Offshore transactions.

Code of Federal Regulations, 2013 CFR

2013-07-01

... 31 Money and Finance:Treasury 3 2013-07-01 2013-07-01 false Offshore transactions. 598.407 Section 598.407 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF... Interpretations § 598.407 Offshore transactions. The prohibitions contained in § 598.203 apply to transactions by...

31 CFR 598.407 - Offshore transactions.

Code of Federal Regulations, 2011 CFR

2011-07-01

... 31 Money and Finance:Treasury 3 2011-07-01 2011-07-01 false Offshore transactions. 598.407 Section 598.407 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF... Interpretations § 598.407 Offshore transactions. The prohibitions contained in § 598.203 apply to transactions by...

31 CFR 598.407 - Offshore transactions.

Code of Federal Regulations, 2012 CFR

2012-07-01

... 31 Money and Finance:Treasury 3 2012-07-01 2012-07-01 false Offshore transactions. 598.407 Section 598.407 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF... Interpretations § 598.407 Offshore transactions. The prohibitions contained in § 598.203 apply to transactions by...

77 FR 54912 - Proposed Agency Information Collection Activities; Comment Request

Federal Register 2010, 2011, 2012, 2013, 2014

2012-09-06

... prepaid card transactions, credit card transactions, mobile payments, and transactions involving third... a remote scanner attached to a PC or point-of-sale device, smartphone or other mobile device, or ATM... mobile payments, including the number and value of relevant bill pay transactions and person-to- person...

5 CFR 919.215 - Which nonprocurement transactions are not covered transactions?

Code of Federal Regulations, 2010 CFR

2010-01-01

... foreign government or foreign governmental entity; (2) A public international organization; (3) An entity... wholly or partially of one or more foreign governments or foreign governmental entities. (b) A benefit to... governmental operations. (g) Any other transaction if the application of an exclusion to the transaction is...

22 CFR 208.215 - Which nonprocurement transactions are not covered transactions?

Code of Federal Regulations, 2010 CFR

2010-04-01

... transactions: (a) A direct award to— (1) A foreign government or foreign governmental entity; (2) A public international organization; (3) An entity owned (in whole or in part) or controlled by a foreign government; or... covered transactions? 208.215 Section 208.215 Foreign Relations AGENCY FOR INTERNATIONAL DEVELOPMENT...

31 CFR 538.405 - Transactions incidental to a licensed transaction authorized.

Code of Federal Regulations, 2011 CFR

2011-07-01

... 31 Money and Finance:Treasury 3 2011-07-01 2011-07-01 false Transactions incidental to a licensed transaction authorized. 538.405 Section 538.405 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY SUDANESE SANCTIONS...

31 CFR 545.403 - Transactions incidental to a licensed transaction authorized.

Code of Federal Regulations, 2010 CFR

2010-07-01

... 31 Money and Finance: Treasury 3 2010-07-01 2010-07-01 false Transactions incidental to a licensed transaction authorized. 545.403 Section 545.403 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY TALIBAN (AFGHANISTAN...

31 CFR 538.405 - Transactions incidental to a licensed transaction authorized.

Code of Federal Regulations, 2010 CFR

2010-07-01

... 31 Money and Finance: Treasury 3 2010-07-01 2010-07-01 false Transactions incidental to a licensed transaction authorized. 538.405 Section 538.405 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY SUDANESE SANCTIONS...

26 CFR 1.985-3 - United States dollar approximate separate transactions method.

Code of Federal Regulations, 2010 CFR

2010-04-01

... transactions method. 1.985-3 Section 1.985-3 Internal Revenue INTERNAL REVENUE SERVICE, DEPARTMENT OF THE... dollar approximate separate transactions method. (a) Scope and effective date—(1) Scope. This section describes the United States dollar (dollar) approximate separate transactions method of accounting (DASTM...

31 CFR 594.405 - Transactions incidental to a licensed transaction.

Code of Federal Regulations, 2012 CFR

2012-07-01

... 31 Money and Finance:Treasury 3 2012-07-01 2012-07-01 false Transactions incidental to a licensed transaction. 594.405 Section 594.405 Money and Finance: Treasury Regulations Relating to Money and Finance (Continued) OFFICE OF FOREIGN ASSETS CONTROL, DEPARTMENT OF THE TREASURY GLOBAL TERRORISM SANCTIONS...