Note: This page contains sample records for the topic ehr educational portal from Science.gov.
While these samples are representative of the content of Science.gov,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of Science.gov
to obtain the most current and comprehensive results.
Last update: August 15, 2014.
1

Solutions for deploying multi-architecture EHRs on a single EHR educational portal.  

PubMed

In this paper technical issues are discussed related to the development and implementation of a remotely accessible portal that allows users to interact with a range of electronic health records (EHRs). The Portal (known as the UVic EHR Educational Portal) was designed to allow for the hosting of a range of types of EHRs, ranging from thick client systems to web-browser-based systems. The portal has been successfully deployed to allow simultaneous access by hundreds of users (i.e., health professional students) in order to work with representative EHRs for educational purposes. The overall architecture is described and issues related to the challenges in allowing for the hosting of systems of divers designs. PMID:19745291

Armstrong, Brian; Kushniruk, Andre; Borycki, Elizabeth

2009-01-01

2

Director, Division of Graduate Education, ES-1701, EHR/DGE (Closes: 11/28/2005)  

NSF Publications Database

The National Science Foundation is seeking qualified candidates for the position of Director, Division of Graduate Education (DGE), Directorate for Education and Human Resources (EHR). Applications may be transmitted electronically to execsrch@nsf.gov, mailed or delivered to the following address: National Science Foundation, Division of Human Resource Management, Executive Personnel, Room 315, ATTN: S20060003-IPA, 4201 Wilson Blvd., Arlington, VA 22230. Information on the NSF mission, ...

3

Building Portals for Higher Education.  

ERIC Educational Resources Information Center

Presents the elements, components, and processes involved in setting and maintaining Web portals. Uses Santa Barbara City College as a case study of a portal implementation with the purpose of supporting knowledge management; underscores the role played and benefits gained by institutional research and the college as a result. (EV)

Pickett, Richard A.; Hamre, William B.

2002-01-01

4

Community Surface Dynamics Modeling System: Education portal  

NSDL National Science Digital Library

The Community Surface Dynamics Modeling System promotes quantitative Earth Science education with models through its educational portal, which has collections of models and animations illustrating Earth surface processes, lab exercises using Earth systems modeling, lectures on Earth surface modeling, images of the Earth's surface, and more.

System, Community S.

5

MedEdPORTAL: Educational Scholarship for Teaching  

ERIC Educational Resources Information Center

MedEdPORTAL is an online publication service provided at no charge by the Association of American Medical Colleges (AAMC). The intent is to promote collaboration and educational scholarship by helping educators publish and share educational resources. With MedEdPORTAL, users can quickly locate high-quality, peer-reviewed teaching materials in both…

Reynolds, Robby J.; Candler, Christopher S.

2008-01-01

6

Director, Division of Graduate Education, ES-1701, EHR/DGE (Closes: 11/28/2005)  

NSF Publications Database

... experience in science, mathematics or engineering or science/mathematics/engineering education. 2 ... in STEM graduate education. 5. Administrative experience in graduate education at the Chair or Dean ...

7

Simulated electronic health record (Sim-EHR) curriculum: teaching EHR skills and use of the EHR for disease management and prevention.  

PubMed

Electronic health records (EHRs) can improve many aspects of patient care, yet few formal EHR curricula exist to teach optimal use to students and other trainees. The Simulated EHR (Sim-EHR) curriculum was introduced in January 2011 at Oregon Health & Science University (OHSU) to provide learners with a safe hands-on environment in which to apply evidence-based guidelines while learning EHR skills. Using an EHR training platform identical to the OHSU EHR system, learners review and correct a simulated medical chart for a complex virtual patient with chronic diseases and years of fragmented care. They write orders and prescriptions, create an evidence-based plan of care for indicated disease prevention and management, and review their work in a small-group setting. Third-year students complete the Sim-EHR curriculum as part of the required family medicine clerkship; their chart work is assessed using a rubric tied to the curriculum's general and specific objectives. As of January 2014, 406 third-year OHSU medical students, on campus or at remote clerkship sites, and 21 OHSU internal medicine interns had completed simulated charts.In this article, the authors describe the development and implementation of the Sim-EHR curriculum, with a focus on use of the curriculum in the family medicine clerkship. They also share preliminary findings and lessons learned. They suggest that the Sim-EHR curriculum is an effective, interactive method for providing learners with EHR skills education while demonstrating how a well-organized chart helps ensure safe, efficient, and quality patient care. PMID:24448035

Milano, Christina E; Hardman, Joseph A; Plesiu, Adeline; Rdesinski, Rebecca E; Biagioli, Frances E

2014-03-01

8

Simulated Electronic Health Record (Sim-EHR) Curriculum: Teaching EHR Skills and Use of the EHR for Disease Management and Prevention  

PubMed Central

Electronic health records (EHRs) can improve many aspects of patient care, yet few formal EHR curricula exist to teach optimal use to students and other trainees. The Simulated EHR (Sim-EHR) curriculum was introduced in January 2011 at Oregon Health & Science University (OHSU) to provide learners with a safe hands-on environment in which to apply evidence-based guidelines while learning EHR skills. Using an EHR training platform identical to the OHSU EHR system, learners review and correct a simulated medical chart for a complex virtual patient with chronic diseases and years of fragmented care. They write orders and prescriptions, create an evidence-based plan of care for indicated disease prevention and management, and review their work in a small-group setting. Third-year students complete the Sim-EHR curriculum as part of the required family medicine clerkship; their chart work is assessed using a rubric tied to the curriculum’s general and specific objectives. As of January 2014, 406 third-year OHSU medical students, on campus or at remote clerkship sites, and 21 OHSU internal medicine interns had completed simulated charts. In this article, the authors describe the development and implementation of the Sim-EHR curriculum, with a focus on use of the curriculum in the family medicine clerkship. They also share preliminary findings and lessons learned. They suggest that the Sim-EHR curriculum is an effective, interactive method for providing learners with EHR skills education while demonstrating how a well-organized chart helps ensure safe, efficient, and quality patient care.

Milano, Christina E.; Hardman, Joseph A.; Plesiu, Adeline; Rdesinski, Rebecca E.; Biagioli, Frances E.

2014-01-01

9

A WEB-BASED PORTAL FOR INFORMATION SECURITY EDUCATION  

Microsoft Academic Search

Today's organizations have become so dependant on information resources that even the effects of a single information security incident could be devastating. Increasing Information Security awareness is the most cost- effective control that an organization can implement. However, most organizations do not have the necessary financial or knowledge resources needed for a comprehensive awareness education program. A web-based portal acting

JOHAN VAN NIEKERK; ROSSOUW VON SOLMS

10

Architecture and Implementation of a Collaborative Computing and Education Portal  

Microsoft Academic Search

IntroductionWe have developed several web-based environments to support both education andcomputing during the last few years. Early examples were the web-based interface to theLandscape Management simulation system [28,29,30] and the use of Tango Interactive[10] for distance classes between Syracuse and Jackson State Universities. These wererespectively essentially the first computing and educational web-based portals everdeveloped. ERDC provided they key initial support

Geoffrey Fox

2001-01-01

11

Quantitative Analysis of the Usage of the COSMOS Science Education Portal  

ERIC Educational Resources Information Center

A quantitative method of mapping the web usage of an innovative educational portal is applied to analyze the behaviour of users of the COSMOS Science Education Portal. The COSMOS Portal contains user-generated resources (that are uploaded by its users). It has been designed to support a science teacher's search, retrieval and access to both,…

Sotiriou, Sofoklis; Bogner, Franz X.; Neofotistos, George

2011-01-01

12

ASA Education in Acoustics website as new portal  

NASA Astrophysics Data System (ADS)

The ad-hoc On Line Education Committee of the Acoustical Society of America was charged in 2002 with revitalizing the Education in Acoustics website. A web portal, demonstrated at the Nashville, TN, meeting in April, 2003, consists of a fanciful view of Lord Rayleigh's drawing room. Items within the room are ``hot'' and lead the visitor to web links whose content is related to the technical committee areas and other areas of interest. The links are configurable via a web (MySQL) database interface so that they can be manipulated without programming. Current efforts include populating the portal with links and adding active content in topic areas that need to be strengthened.

Everbach, E. Carr

2003-10-01

13

A Web-Based Portal For Information Security Education  

Microsoft Academic Search

Abstract:,Today’s organizations have become ,so dependant ,on information ,resources that even ,the effects of a ,single information ,security incident could be devastating. Increasing Information Security awareness ,is the ,most ,costeffective control that an organization can implement. However, most organizations do not ,have the necessary financial or knowledge ,resources needed,for a comprehensive ,awareness ,education ,program. A web-based portal acting as a

Johan Van Niekerk

2002-01-01

14

Accelerating the ROI of EHRs.  

PubMed

Three key strategies can enable an organization to achieve the greatest possible value from electronic health records (EHRs): Meaningful use should be combined with a value realization strategy to ensure that the EHR does more than automate the paper record. Healthcare leaders should work to align IT tools with new business models, care delivery frameworks, and operating processes. Business and clinical goals and desired benefits should drive EHR value realization. PMID:24611229

Arlotto, Pam

2014-02-01

15

Science Education Analyst (Assistant Prog Dir)AD-1701-2 EHR/ESIE (Closes: 08/18/2005)  

NSF Publications Database

... YEAR TEMPORARY BASIS. POSITION VACANT: Science Education Analyst (Assistant Program Director ... to $97,213. PROMOTION POTENTIAL: Science Education Analyst (Assistant Program Director), AD-1701-2 ...

16

Accelerating U.S. EHR Adoption: How to Get There From Here. Recommendations Based on the 2004 ACMI Retreat  

PubMed Central

Despite growing support for the adoption of electronic health records (EHR) to improve U.S. healthcare delivery, EHR adoption in the United States is slow to date due to a fundamental failure of the healthcare information technology marketplace. Reasons for the slow adoption of healthcare information technology include a misalignment of incentives, limited purchasing power among providers, variability in the viability of EHR products and companies, and limited demonstrated value of EHRs in practice. At the 2004 American College of Medical Informatics (ACMI) Retreat, attendees discussed the current state of EHR adoption in this country and identified steps that could be taken to stimulate adoption. In this paper, based upon the ACMI retreat, and building upon the experiences of the authors developing EHR in academic and commercial settings we identify a set of recommendations to stimulate adoption of EHR, including financial incentives, promotion of EHR standards, enabling policy, and educational, marketing, and supporting activities for both the provider community and healthcare consumers.

Middleton, Blackford; Hammond, W. Ed; Brennan, Patricia F.; Cooper, Gregory F.

2005-01-01

17

Quantitative Analysis of the Usage of the COSMOS Science Education Portal  

NASA Astrophysics Data System (ADS)

A quantitative method of mapping the web usage of an innovative educational portal is applied to analyze the behaviour of users of the COSMOS Science Education Portal. The COSMOS Portal contains user-generated resources (that are uploaded by its users). It has been designed to support a science teacher's search, retrieval and access to both, scientific and educational resources. It also aims to introduce in and familiarize teachers with an innovative methodology for designing, expressing and representing educational practices in a commonly understandable way through the use of user-friendly authoring tools that are available through the portal. As a new science education portal that includes user-generated content, the COSMOS Portal encounters the well-known "new product/service challenge": to convince the users to use its tools, which facilitate quite fast lesson planning and lesson preparation activities. To respond to this challenge, the COSMOS Portal operators implemented a validation process by analyzing the usage data of the portal in a 10 month time-period. The data analyzed comprised: (a) the temporal evolution of the number of contributors and the amount of content uploaded to the COSMOS Portal; (b) the number of portal visitors (categorized as all-visitors, new-visitors, and returning-visitors) and (c) visitor loyalty parameters (such as page-views; pages/visit; average time on site; depth of visit; length of visit). The data is augmented with data associated with the usage context (e.g. the time of day when most of the activities in the portal take place). The quantitative results indicate that the exponential growth of the contributors to the COSMOS Portal is followed by an exponential growth of the uploaded content. Furthermore, the web usage statistics demonstrate significant changes in users' behaviour during the period under study, with returning visitors using the COSMOS Portal more frequently, mainly for lesson planning and preparation (in the afternoon hours). The findings demonstrate that the new COSMOS users follow the "law of surfing" behaviour, a common pattern of surfing behaviour in portals. However, users return to the COSMOS Portal: returning users comprise more than 50% of all COSMOS visits, stay longer on site and visit more pages. Returning visitors are benchmarked against the "law of surfing" and outperform it substantially. These quantitative results benchmark the web usage of a portal and provide its operators with maps of value-added patterns of the portal's offering to its users in the science education community.

Sotiriou, Sofoklis; Bogner, Franz X.; Neofotistos, George

2011-08-01

18

Advanced Proficiency EHR Training: Effect on Physicians' EHR Efficiency, EHR Satisfaction and Job Satisfaction  

PubMed Central

The best way to train clinicians to optimize their use of the Electronic Health Record (EHR) remains unclear. Approaches range from web-based training, class-room training, EHR functionality training, case-based training, role-based training, process-based training, mock-clinic training and “on the job” training. Similarly, the optimal timing of training remains unclear--whether to engage in extensive pre go-live training vs. minimal pre go-live training followed by more extensive post go-live training. In addition, the effectiveness of non-clinician trainers, clinician trainers, and peer-trainers, remains unclearly defined. This paper describes a program in which relatively experienced clinician users of an EHR underwent an intensive 3-day Peer-Led EHR advanced proficiency training, and the results of that training based on participant surveys. It highlights the effectiveness of Peer-Led Proficiency Training of existing experienced clinician EHR users in improving self-reported efficiency and satisfaction with an EHR and improvements in perceived work-life balance and job satisfaction.

Dastagir, M. Tariq; Chin, Homer L.; McNamara, Michael; Poteraj, Kathy; Battaglini, Sarah; Alstot, Lauren

2012-01-01

19

Web Portals & Higher Education: Technologies To Make IT Personal. The Jossey-Bass Higher and Adult Education Series.  

ERIC Educational Resources Information Center

The chapters of this collection examine a full range of issues that any educational institution must consider before beginning to develop a Web portal, including business challenges, organizational implications, policy choices, and technology concerns. The chapters are: (1) "It's a Bird! It's a Plane! It's a Portal?" (Richard N. Katz); (2)…

Katz, Richard N., Ed.

20

MedEdPORTAL: a report on oral health resources for health professions educators.  

PubMed

MedEdPORTAL is a unique web-based peer-reviewed publication venue for clinical health educators sponsored by the Association of American Medical Colleges (AAMC). The open exchange of educational resources promotes professional collaboration across health professions. In 2008, the American Dental Education Association (ADEA) collaborated with AAMC to allow dental educators to use the platform to publish dental curriculum resources. Oral health is integral to general health; hence, collaboration among health care professionals brings enormous value to patient-centered care. The aim of this study was to conduct a current survey of metrics and submission statistics of MedEdPORTAL resources. The data were collected using the MedEdPORTAL search engine and ADEA and AAMC staff. The data collected were categorized and reported in tables and charts. Results showed that at the time of this study there were over 2,000 medical and dental resources available to anyone worldwide. Oral health resources constituted approximately 30 percent of the total resources, which included cross-indexing with information relevant to both medical and dental audiences. There were several types of dental resources available; the most common were the ones focusing on critical thinking. The usage of MedEdPORTAL has been growing, with participation from over 190 countries and 10,000 educational institutions around the world. The findings of this report suggest that MedEdPORTAL is succeeding in its aim to foster global collaborative education, professional education, and educational scholarship. As such, MedEdPORTAL is providing a new forum for collaboration and opens venues for promising future work in professional education. PMID:24002849

Chickmagalur, Nithya S; Allareddy, Veerasathpurush; Sandmeyer, Sue; Valachovic, Richard W; Candler, Christopher S; Saleh, Michael; Cahill, Emily; Karimbux, Nadeem Y

2013-09-01

21

EHR Committee Workplan  

NSF Publications Database

... in education and training responsive to the growing diversity of career and employment opportunities ... Resources in several NSF programs have grown as the pivotal role of teacher preparation and the ...

22

An Evaluation of Teachers' Perceptions of a State Developed Educational Portal  

ERIC Educational Resources Information Center

The purpose of this study was to investigate teachers' perceptions use of a state developed educational portal. The research evaluated the differences in the quality, usefulness, and relevance of learning objects found on the website based on teachers' gender and grade level they taught. Grade level taught referred to those grades that are the…

Caraccio, Beth Katz

2009-01-01

23

45 CFR 170.553 - Certification of health information technology other than Complete EHRs and EHR Modules.  

Code of Federal Regulations, 2012 CFR

...false Certification of health information technology other than Complete EHRs and EHR Modules...HEALTH AND HUMAN SERVICES HEALTH INFORMATION TECHNOLOGY HEALTH INFORMATION TECHNOLOGY STANDARDS, IMPLEMENTATION...

2012-10-01

24

45 CFR 170.553 - Certification of health information technology other than Complete EHRs and EHR Modules.  

Code of Federal Regulations, 2011 CFR

...false Certification of health information technology other than Complete EHRs and EHR Modules...HEALTH AND HUMAN SERVICES HEALTH INFORMATION TECHNOLOGY HEALTH INFORMATION TECHNOLOGY STANDARDS, IMPLEMENTATION...

2011-10-01

25

Service quality of Early Childhood Education web portals in Finnish municipalities  

NASA Astrophysics Data System (ADS)

Increasing number of governmental organizations have transformed material on their web sites as a way of providing users with information about their products and services. In this paper, we apply Yang et al (2005) instrument for analyzing municipal early childhood education (ECE) web sites in Finland. The objective of the study was to find out the quality of ECE web portals as well as to give hints to improve their value from users' point of view. In general the five dimensions, usability, usefulness of content, adequacy of information, accessibility, and interaction, of the Yang et al model seems to be applicable also in the early childhood education environment.

Koskivaara, Eija; Pihlaja, Päivi

26

Shared Decision Making in Education Governance Using Business Portals  

ERIC Educational Resources Information Center

The purpose of this study was to address a high-volume problem for the Delaware Department of Education Office of Professional Accountability (OPA). This problem was addressed by sharing the certification decision with qualified personnel located at each of the four teacher preparation programs located in Delaware at Delaware State University…

Peoples, Adrian L.

2009-01-01

27

StarBRITE: The Vanderbilt University Biomedical Research Integration, Translation and Education Portal  

PubMed Central

StarBRITE is a one-stop, web-based research portal designed to meet the day-to-day needs of the Vanderbilt University and Meharry Medical College research community during the planning and conduct of research studies. StarBRITE serves as the main online location for research support addressing issues such as identification and location of resources, identification of experts, guidance for regulatory applications and approvals, regulatory assistance, funding requests, research data planning and collection, and serves as a central repository for educational offerings. To date, there have been more than 590,038 StarBRITE hits by more than 6582 cumulative users. We present here StarBRITE design objectives, details about technical infrastructure and system components, status report and activity metrics for the first 2.75-years of operation, and a report of lessons learned during organizing, launching and refining the portal.

Harris, Paul A.; Swafford, Jonathan A.; Edwards, Terri L.; Zhang, Minhua; Nigavekar, Shraddha S.; Yarbrough, Tonya R.; Lane, Lynda D.; Helmer, Tara; Lebo, Laurie A.; Mayo, Gail; Masys, Daniel R.; Bernard, Gordon R.; Pulley, Jill M.

2011-01-01

28

MedlinePlus Connect: Linking Patient Portals and Electronic Health Records to Health Information  

MedlinePLUS

... JavaScript. Linking Patient Portals and EHRs to Consumer Health Information MedlinePlus Connect is a free service of ... National Library of Medicine (NLM), National Institutes of Health (NIH), and the Department of Health and Human ...

29

Giovanni Data Portals and Resources Support Student Problem-Based Learning for Climate Change Education  

NASA Astrophysics Data System (ADS)

The Data-Enhanced Investigations for Climate Change Education (DICCE) project, funded by NASA, is providing dedicated climate data portals in the NASA Giovanni data system for the use of teachers and students. The central content of the DICCE-Giovanni data portals is a reduced set of climate-relevant data parameters drawn from the available Giovanni data sets, with accessible meanings, such as surface temperature, precipitation amount, snow cover, phytoplankton chlorophyll concentration, vegetation indices, and aerosol optical depth. Information resources explain the significance of the data to climate research, how to interpret climate data trends, and address uncertainties in both data visualizations and the interpretation of data plotting output. "How-to" videos and plotting tips facilitate the utilization of the data portals, so that teachers can create problem-based projects based on actual satellite observational data. The use of satellite data in a problem-based framework enhances the relevance and immediacy of the project content to the student, improves their understanding of Earth climate system interrelationships, and also improves pattern recognition, math skills, and interpretation of data representations.;

Acker, J. G.; Zalles, D. R.; Krumhansl, R. A.

2012-12-01

30

45 CFR 170.470 - Effect of revocation on the certifications issued to complete EHRs and EHR Modules.  

Code of Federal Regulations, 2010 CFR

...AND CERTIFICATION CRITERIA AND CERTIFICATION PROGRAMS FOR HEALTH INFORMATION TECHNOLOGY Temporary Certification Program for HIT § 170.470 Effect of revocation on the certifications issued to complete EHRs and EHR Modules. (a) The...

2010-10-01

31

42 CFR 495.210 - Meaningful EHR user attestation.  

Code of Federal Regulations, 2010 CFR

...2010-10-01 2010-10-01 false Meaningful EHR user attestation. 495.210...MA) Organizations § 495.210 Meaningful EHR user attestation. (a) Qualifying...MA-affiliated eligible hospitals is a meaningful EHR user. (b) Qualifying MA...

2010-10-01

32

42 CFR 495.210 - Meaningful EHR user attestation.  

Code of Federal Regulations, 2013 CFR

...2013-10-01 2013-10-01 false Meaningful EHR user attestation. 495.210...MA) Organizations § 495.210 Meaningful EHR user attestation. (a) Qualifying...MA-affiliated eligible hospitals is a meaningful EHR user. (b) Qualifying MA...

2013-10-01

33

A reference architecture for integrated EHR in Colombia.  

PubMed

The implementation of national EHR infrastructures has to start by a detailed definition of the overall structure and behavior of the EHR system (system architecture). Architectures have to be open, scalable, flexible, user accepted and user friendly, trustworthy, based on standards including terminologies and ontologies. The GCM provides an architectural framework created with the purpose of analyzing any kind of system, including EHR system´s architectures. The objective of this paper is to propose a reference architecture for the implementation of an integrated EHR in Colombia, based on the current state of system´s architectural models, and EHR standards. The proposed EHR architecture defines a set of services (elements) and their interfaces, to support the exchange of clinical documents, offering an open, scalable, flexible and semantically interoperable infrastructure. The architecture was tested in a pilot tele-consultation project in Colombia, where dental EHR are exchanged. PMID:21893762

de la Cruz, Edgar; Lopez, Diego M; Uribe, Gustavo; Gonzalez, Carolina; Blobel, Bernd

2011-01-01

34

Archetype Model-Driven Development Framework for EHR Web System  

PubMed Central

Objectives This article describes the Web application framework for Electronic Health Records (EHRs) we have developed to reduce construction costs for EHR sytems. Methods The openEHR project has developed clinical model driven architecture for future-proof interoperable EHR systems. This project provides the specifications to standardize clinical domain model implementations, upon which the ISO/CEN 13606 standards are based. The reference implementation has been formally described in Eiffel. Moreover C# and Java implementations have been developed as reference. While scripting languages had been more popular because of their higher efficiency and faster development in recent years, they had not been involved in the openEHR implementations. From 2007, we have used the Ruby language and Ruby on Rails (RoR) as an agile development platform to implement EHR systems, which is in conformity with the openEHR specifications. Results We implemented almost all of the specifications, the Archetype Definition Language parser, and RoR scaffold generator from archetype. Although some problems have emerged, most of them have been resolved. Conclusions We have provided an agile EHR Web framework, which can build up Web systems from archetype models using RoR. The feasibility of the archetype model to provide semantic interoperability of EHRs has been demonstrated and we have verified that that it is suitable for the construction of EHR systems.

Kimura, Eizen; Ishihara, Ken

2013-01-01

35

Comparing the Certification Criteria for CCHIT-Certified Ambulatory EHR with the SNUBH's EHR Functionalities  

PubMed Central

Objectives This study aims to investigate the suitability of electronic health record (EHR) systems in Korea for global certification and to propose functions for future global systems by comparing and analyzing the certification criteria for Certification Commission for Health Information Technology (CCHIT) Certified Ambulatory EHR with BESTCare, which is the EHR system at Seoul National University Bundang hospital. Methods Domain expert groups were formed to analyze the inclusion of BESTCare functions and the types of differences for each of the CCHIT Certified 2011 Ambulatory EHR Certification Criteria. The types of differences were divided into differences in functions (F), differences in business processes (B), and differences in government policies (P). Results Generally, the criteria that showed differences in functions pertained to the connection between the diagnosis/problem list and order, the alert and warning functions for medication-diagnosis interactions, and the reminder/instruction/notification messages related to the patient's immunization status; these absent functions were enhanced clinical decision support system (CDSS) functions related to patient safety and healthcare quality. Differences in government policies were found in the pharmacy's electronic prescription functions, while differences in business processes were found in the functions constrained by the local workflow or internal policy, which require some customization. Conclusions Functions that differed between the CCHIT certification criteria and the BESTCare system in this study should be considered when developing a global EHR system. Such a system will need to be easily customizable to adapt to various government policies and local business processes. These functions should be considered when developing a global EHR system certified by CCHIT in the future.

Heo, Eun Young; Hwang, Hee; Kim, Eun Hye; Cho, Eun Young; Lee, Kee Hyuck; Kim, Tae Hun; Kim, Ki Dong; Baek, Rong Min

2012-01-01

36

Ontological Hypermedia in Education: A framework for building web-based educational portals  

Microsoft Academic Search

The World Wide Web offers access to a wealth of educational material; yet these are often weakly interlinked and fail to make explicit any real-world relationships. Ontological engineering support has been identified and stressed as one of the key limitations to overcome in building next generation web-based educational systems enabling knowledge sharing and reuse. In this paper we address this

Arouna Woukeu; Gary Wills; Grainne Conole; Leslie Carr; Simon Kampa; Wendy Hall

2003-01-01

37

Transitioning between ambulatory EHRs: a study of practitioners' perspectives  

PubMed Central

Objective To evaluate practitioners' expectations of, and satisfaction with, older and newer electronic health records (EHRs) after a transition. Material and methods Pre- and post-transition survey administered at six academic-affiliated ambulatory care practices from 2006 to 2008. Four practices transitioned to one commercial EHR and two practices to another. We compared respondents' expectations of, and satisfaction with, the newer EHR. Results 523 subjects were eligible: 217 were available before transition and 306 after transition. 162 pre-transition and 197 post-transition responses were received, yielding 75% and 64% response rates, respectively. Practitioners were more satisfied with the newer EHRs (64%) compared with the older (56%) (p=0.15) and a small majority (58%) were satisfied with the transition. Practitioners' satisfaction with the older EHRs for completing clinical tasks was high. The newer EHRs exceeded practitioner expectations regarding remote access (61% vs 74%; p=0.03). However, the newer EHRs did not meet practitioners' expectations regarding their ability to perform clinical tasks, or more globally, improve medication safety (81% vs 61%; p<0.001), efficiency (70% vs 44%; p<0.001), and quality of care (77% vs 67%; p=0.04). Discussion Most practitioners had favorable opinions about EHRs and reported overall improved satisfaction with the newer EHRs. However, practitioners' high expectations of the newer EHRs were often unmet regarding facilitation of specific clinical tasks or for improving quality, safety, and efficiency. Conclusion To ensure practitioners' expectations, for instance regarding improvements in medication safety, are met, vendors should develop and implement refinements in their software as practices upgrade to newer, certified EHRs.

Zandieh, Stephanie O; Abramson, Erika L; Pfoh, Elizabeth R; Yoon-Flannery, Kay; Edwards, Alison

2011-01-01

38

Same organization, same electronic health records (EHRs) system, different use: exploring the linkage between practice member communication patterns and EHR use patterns in an ambulatory care setting  

PubMed Central

Objective Despite efforts made by ambulatory care organizations to standardize the use of electronic health records (EHRs), practices often incorporate these systems into their work differently from each other. One potential factor contributing to these differences is within-practice communication patterns. The authors explore the linkage between within-practice communication patterns and practice-level EHR use patterns. Design Qualitative study of six practices operating within the same multi-specialty ambulatory care organization using the same EHR system. Semistructured interviews and direct observation were conducted with all physicians, nurses, medical assistants, practice managers, and non-clinical staff from each practice. Measurements An existing model of practice relationships was used to analyze communication patterns within the practices. Practice-level EHR use was defined and analyzed as the ways in which a practice uses an EHR as a collective or a group—including the degree of feature use, level of EHR-enabled communication, and frequency that EHR use changes in a practice. Interview and observation data were analyzed for themes. Based on these themes, within-practice communication patterns were categorized as fragmented or cohesive, and practice-level EHR use patterns were categorized as heterogeneous or homogeneous. Practices where EHR use was uniformly high across all users were further categorized as having standardized EHR use. Communication patterns and EHR use patterns were compared across the six practices. Results Within-practice communication patterns were associated with practice-level EHR use patterns. In practices where communication patterns were fragmented, EHR use was heterogeneous. In practices where communication patterns were cohesive, EHR use was homogeneous. Additional analysis revealed that practices that had achieved standardized EHR use (uniformly high EHR use across all users) exhibited high levels of mindfulness and respectful interaction, whereas practices that were furthest from achieving standardized EHR use exhibited low levels of mindfulness and respectful interaction. Conclusion Within-practice communication patterns provide a unique perspective for exploring the issue of standardization in EHR use. A major fallacy of setting homogeneous EHR use as the goal for practice-level EHR use is that practices with uniformly low EHR use could be considered successful. Achieving uniformly high EHR use across all users in a practice is more consistent with the goals of current EHR adoption and use efforts. It was found that some communication patterns among practice members may enable more standardized EHR use than others. Understanding the linkage between communication patterns and EHR use can inform understanding of the human element in EHR use and may provide key lessons for the implementation of EHRs and other health information technologies.

Leykum, Luci K; McDaniel, Reuben R

2011-01-01

39

The openEHR Java reference implementation project.  

PubMed

The openEHR foundation has developed an innovative design for interoperable and future-proof Electronic Health Record (EHR) systems based on a dual model approach with a stable reference information model complemented by archetypes for specific clinical purposes.A team from Sweden has implemented all the stable specifications in the Java programming language and donated the source code to the openEHR foundation. It was adopted as the openEHR Java Reference Implementation in March 2005 and released under open source licenses. This encourages early EHR implementation projects around the world and a number of groups have already started to use this code. The early Java implementation experience has also led to the publication of the openEHR Java Implementation Technology Specification. A number of design changes to the specifications and important minor corrections have been directly initiated by the implementation project over the last two years. The Java Implementation has been important for the validation and improvement of the openEHR design specifications and provides building blocks for future EHR systems. PMID:17911678

Chen, Rong; Klein, Gunnar

2007-01-01

40

Organization's quality maturity as a vehicle for EHR success.  

PubMed

In health care industry, EHR has been advocated to improve care quality. The journey toward the development and adaptation of EHR should be holistic and integrate all the EHR's building blocks-health record management, business process improvement (BPI), collaboration and innovation, change management, user governance, etc.-that are intertwined together as like the links of a chain to improve quality of health care services. These cornerstones that shares common features with quality principles will pave the way for implementing EHR. To go along with quality features and take advantage of quality principles namely "quality maturity" builds a solid foundation for adaptation of EHR. Therefore, the recent theories of EHR success go far beyond technical rationales and focus on organizational and managerial factors in quality improvement. The milestone of quality concept in information system success is revealed in Delone and Mclean's model which launches system quality, information quality, service quality, as distinct elements of the IS success. EHR is a means to an end -to improve quality within enterprises- based on quality approaches. In this regards, more research should be conducted to investigate the relationship between of organization's quality maturity and EHR development success. PMID:20878212

Meidani, Zahra; Sadoughi, Farhnaz; Maleki, Mohammad Reza; Tofighi, Shahram; Marani, Ahmad Barati

2012-06-01

41

Supporting openEHR Java desktop application developers.  

PubMed

The openEHR community suggests that an appropriate approach for creating a graphical user interface for an openEHR-based application is to generate forms from the underlying archetypes and templates. However, current generation techniques are not mature enough to be able to produce high quality interfaces with good usability. Therefore, developing efficient ways to combine manually designed and developed interfaces to openEHR backends is an interesting alternative. In this study, a framework for binding a pre-designed graphical user interface to an openEHR-based backend is proposed. The proposed framework contributes to the set of options available for developers. In particular we believe that the approach of combining user interface components with an openEHR backend in the proposed way might be useful in situations where the quality of the user interface is essential and for creating small scale and experimental systems. PMID:21893842

Kashfi, Hajar; Torgersson, Olof

2011-01-01

42

The Power in the Portal  

ERIC Educational Resources Information Center

Educational portals put together links to sites and resources educators would be interested in viewing. They eliminate the hours of searching that might be invested if typical search engines were used. Educational portals feature lessons, units, printable resources, creative ideas, and more. Many of these sites are free, while others are…

Chamberlain, Cathy

2005-01-01

43

Understanding differences in electronic health record (EHR) use: linking individual physicians' perceptions of uncertainty and EHR use patterns in ambulatory care  

PubMed Central

Objective Electronic health records (EHR) hold great promise for managing patient information in ways that improve healthcare delivery. Physicians differ, however, in their use of this health information technology (IT), and these differences are not well understood. The authors study the differences in individual physicians' EHR use patterns and identify perceptions of uncertainty as an important new variable in understanding EHR use. Design Qualitative study using semi-structured interviews and direct observation of physicians (n=28) working in a multispecialty outpatient care organization. Measurements We identified physicians' perceptions of uncertainty as an important variable in understanding differences in EHR use patterns. Drawing on theories from the medical and organizational literatures, we identified three categories of perceptions of uncertainty: reduction, absorption, and hybrid. We used an existing model of EHR use to categorize physician EHR use patterns as high, medium, and low based on degree of feature use, level of EHR-enabled communication, and frequency that EHR use patterns change. Results Physicians' perceptions of uncertainty were distinctly associated with their EHR use patterns. Uncertainty reductionists tended to exhibit high levels of EHR use, uncertainty absorbers tended to exhibit low levels of EHR use, and physicians demonstrating both perspectives of uncertainty (hybrids) tended to exhibit medium levels of EHR use. Conclusions We find evidence linking physicians' perceptions of uncertainty with EHR use patterns. Study findings have implications for health IT research, practice, and policy, particularly in terms of impacting health IT design and implementation efforts in ways that consider differences in physicians' perceptions of uncertainty.

Lanham, Holly Jordan; Sittig, Dean F; Leykum, Luci K; Parchman, Michael L; Pugh, Jacqueline A; McDaniel, Reuben R

2014-01-01

44

WormClassroom.org: An Inquiry-rich Educational Web Portal for Research Resources of Caenorhabditis elegans  

PubMed Central

The utilization of biology research resources, coupled with a “learning by inquiry” approach, has great potential to aid students in gaining an understanding of fundamental biological principles. To help realize this potential, we have developed a Web portal for undergraduate biology education, WormClassroom.org, based on current research resources of a model research organism, Caenorhabditis elegans. This portal is intended to serve as a resource gateway for students to learn biological concepts using C. elegans research material. The driving forces behind the WormClassroom website were the strengths of C. elegans as a teaching organism, getting researchers and educators to work together to develop instructional materials, and the 3 P's (problem posing, problem solving, and peer persuasion) approach for inquiry learning. Iterative assessment is an important aspect of the WormClassroom site development because it not only ensures that content is up-to-date and accurate, but also verifies that it does, in fact, aid student learning. A primary assessment was performed to refine the WormClassroom website utilizing undergraduate biology students and nonstudent experts such as C. elegans researchers; results and comments were used for site improvement. We are actively encouraging continued resource contributions from the C. elegans research and education community for the further development of WormClassroom.

Lu, Fong-Mei; Stewart, James; White, John G.

2007-01-01

45

Developing a Web 2.0 telemedical education system: the AJAX-Cocoon portal.  

PubMed

Web 2.0 technologies such as wikis, podcasts/vodcasting, blogs and semantic portals could be quite effective tools in e-learning for health professionals. If effectively deployed, such tools can offer a way to enhance students', clinicians' and patients' learning experiences, and deepens levels of learners' engagement and collaboration within medical learning environments. However, Web 2.0 requires simplicity of use as well as integration with modern web technologies. This article presents a Web 2.0 telemedical portal, which provides a social community-learning paradigm from the desk of the physician, the student, the hospital administrator, or the insurer. The presented portal utilises RESTful web services and techniques like content syndication, mushups and Asynchronous JavaScript API and XML (AJAX). The designed portal is based on the Apache Cocoon RESTful framework for sharing Digital Imaging and Communications in Medicine (DICOM) medical case studies. Central to this article is the integration between Cocoon and AJAX. The proposed AJAX-Cocoon portal utilises a JSP portlet architecture, which manages the interaction dynamics and overcomes the shortcomings of the JSR 168 and WSRP 1.0 standards. PMID:18583294

Mohammed, S; Orabi, A; Fiaidhi, J; Orabi, M

2008-01-01

46

Improving HIV/AIDS Knowledge Management Using EHRs  

PubMed Central

Background A primary goal for the development of EHRs and EHR-related technologies should be to facilitate greater knowledge management for improving individual and community health outcomes associated with HIV / AIDS. Most of the current developments of EHR have focused on providing data for research, patient care and prioritization of healthcare provider resources in other areas. More attention should be paid to using information from EHRs to assist local, state, national, and international entities engaged in HIV / AIDS care, research and prevention strategies. Unfortunately the technology and standards for HIV-specific reporting modules are still being developed. Methods: A literature search and review supplemented by the author’s own experiences with electronic health records and HIV / AIDS prevention strategies will be used. This data was used to identify both opportunities and challenges for improving public health informatics primarily through the use of latest innovations in EHRs. Qualitative analysis and suggestions are offered for how EHRs can support knowledge management and prevention strategies associated with HIV infection. Results: EHR information, including demographics, medical history, medication and allergies, immunization status, and other vital statistics can help public health practitioners to more quickly identify at-risk populations or environments; allocate scarce resources in the most efficient way; share information about successful, evidenced-based prevention strategies; and increase longevity and quality of life. Conclusion: Local, state, and federal entities need to work more collaboratively with NGOs, community-based organizations, and the private sector to eliminate barriers to implementation including cost, interoperability, accessibility, and information security.

Malmberg, Erik D.; Phan, Thao M.; Harmon, Glynn; Nauert, Richard F.

2012-01-01

47

CMS and Its Contractors Have Adopted Few Program Integrity Practices to Address Vulnerabilities in EHRs.  

National Technical Information Service (NTIS)

Electronic health records (EHRs) replace traditional paper medical records with computerized recordkeeping to document and store patient health information. Experts in health information technology caution that EHR technology can make it easier to commit ...

2014-01-01

48

Secondary Use of EHR: Data Quality Issues and Informatics Opportunities  

PubMed Central

Given the large-scale deployment of Electronic Health Records (EHR), secondary use of EHR data will be increasingly needed in all kinds of health services or clinical research. This paper reports some data quality issues we encountered in a survival analysis of pancreatic cancer patients. Using the clinical data warehouse at Columbia University Medical Center in the City of New York, we mined EHR data elements collected between 1999 and 2009 for a cohort of pancreatic cancer patients. Of the 3068 patients who had ICD-9-CM diagnoses for pancreatic cancer, only 1589 had corresponding disease documentation in pathology reports. Incompleteness was the leading data quality issue; many study variables had missing values to various degrees. Inaccuracy and inconsistency were the next common problems. In this paper, we present the manifestations of these data quality issues and discuss some strategies for using emerging informatics technologies to solve these problems.

Botsis, Taxiarchis; Hartvigsen, Gunnar; Chen, Fei; Weng, Chunhua

2010-01-01

49

Mapping the Finnish National EHR to the LOINC.  

PubMed

The unified content of EHRs promote shared understanding of patient data, information exchange between information systems and health care organizations, data retrieval from EHR and reuse of data for administrative purposes, statistical analysis or clinical research. The purpose of this study was to analyze to what extent Finnish national headings can be coded with the current version LOINC. Ten (37%) of national headings can be mapped to LOINC terms in clinical class. There were LOINC terms in other classes which correspond to headings. Furthermore, inconsistency exists in the names of headings. The need for mapping national headings to all terms in LOINC is needed. PMID:21685603

Häyrinen, Kristiina; Mykkänen, Juha

2011-01-01

50

Funding alternatives in EHR adoption: beyond HITECH incentives and traditional approaches.  

PubMed

The meaningful use incentives under HITECH may be inadequate to address the financial challenges many hospitals face in implementing electronic health records (EHRs). Hospitals can fill the capital gap between EHR costs and available funds by exploring other potential funding sources. These sources include additional grants, funding permissible under EHR regulations, vendor financing, and tax benefits under IRS Section 179. PMID:23678695

Wang, Tiankai; Wang, Yangmei; Biedermann, Sue

2013-05-01

51

Don't take your EHR to heaven, donate it to science: legal and research policies for EHR post mortem.  

PubMed

Electronic Health Records (EHR) represent a valuable research source. We explore legal and research policies governing EHR use after a patient's death. We describe how the EHR is used after patient's death and how deceased status impacts laws and regulations governing such record. We explore the patient consent mechanism that would support creation of a separate deceased subject integrated data repository (dsIDR) and discuss potential benefit of such repository in comparison with existing query tools, such as the i2b2 cohort estimation query tool, which operate under IRB exemption for reviews preparatory for research. Governance of dsIDR data is compared to regulatory frameworks governing post-mortem management of tissues, organs and corpses as well as digital afterlife of non-healthcare private data. PMID:24303243

Huser, Vojtech; Cimino, James J

2013-01-01

52

Don't take your EHR to heaven, donate it to science: legal and research policies for EHR post mortem.  

PubMed

Recently, an important public debate emerged about the digital afterlife of any personal data stored in the cloud. Such debate brings also to attention the importance of transparent management of electronic health record (EHR) data of deceased patients. In this perspective paper, we look at legal and regulatory policies for EHR data post mortem. We analyze observational research situations using EHR data that do not require institutional review board approval. We propose creation of a deceased subject integrated data repository (dsIDR) as an effective tool for piloting certain types of research projects. We highlight several dsIDR challenges in proving death status, informed consent, obtaining data from payers and healthcare providers and the involvement of next of kin. PMID:23966483

Huser, Vojtech; Cimino, James J

2014-01-01

53

Higher Education Web Portals: Serving State and Student Transfer Needs. Research Brief  

ERIC Educational Resources Information Center

Students need access to web-based resources where they can easily learn about the transfer options available to them--so they can save time and money as they strive to meet their educational goals. This study, conducted by the Western Interstate Commission for Higher Education Cooperative for Educational Technologies (WCET), is one component of…

McGill, Mollie

2010-01-01

54

An integrated EHR at Northern California Kaiser Permanente  

PubMed Central

As legacy information systems age, transition to newer systems is inevitable, but at times fraught with challenge. This brief article addresses some of the pitfalls, challenges, and benefits we experienced at Kaiser Permanente as we transitioned several key clinical information systems to Epic Systems for our integrated comprehensive Electronic Health Record (EHR).

Bornstein, S.

2012-01-01

55

What the others haven't told you: lessons learned to avoid disputes and risks in EHR implementation.  

PubMed

Electronic health records (EHRs) have numerous benefits, but are also besieged with risks. ealth care leaders must analyze potential risks throughout all EHR stages. Lessons learned from an EHR implementation may assist nurse leaders in avoiding disputes and risk. Strategies for reducing risk, liability, and ultimately litigation associated with EHR implementation are discussed. PMID:24834635

Houston-Raasikh, Ceonne

2014-01-01

56

The Effect of a Learning Environment Using an Electronic Health Record (EHR) on Undergraduate Nursing Students' Behaviorial Intention to Use an EHR  

ERIC Educational Resources Information Center

The purpose of this study was to explore the effect of a learning environment using an Electronic Health Record (EHR) on undergraduate nursing students' behavioral intention (BI) to use an EHR. BI is defined by Davis (1989) in the Technology Acceptance Model (TAM) as the degree to which a person has formulated conscious plans to perform or not…

Foley, Shawn

2011-01-01

57

Toward the Knowledge Portal: Public Broadcasting and University Continuing Education in the Internet Age.  

ERIC Educational Resources Information Center

Discusses digital technology convergence and its effects on the information and entertainment industries and on public television. Highlights include media-based educational organizations and their place in the knowledge marketplace; relationships between content providers and their suppliers and customers; competition; distance and continuing…

Vedro, Steven R.

1999-01-01

58

Use of a Web 2.0 Portal to Improve Education and Communication in Young Patients With Families: Randomized Controlled Trial  

PubMed Central

Background Diabetes requires extensive self-care and comprehensive knowledge, making patient education central to diabetes self-management. Web 2.0 systems have great potential to enhance health information and open new ways for patients and practitioners to communicate. Objective To develop a Web portal designed to facilitate self-management, including diabetes-related information and social networking functions, and to study its use and effects in pediatric patients with diabetes. Methods A Web 2.0 portal was developed in collaboration with patients, parents, and practitioners. It offered communication with local practitioners, interaction with peers, and access to relevant information and services. Children and adolescents with diabetes in a geographic population of two pediatric clinics in Sweden were randomized to a group receiving passwords for access to the portal or a control group with no access (n=230) for 1 year. All subjects had access during a second study year. Users’ activity was logged by site and page visits. Health-related quality of life (HRQOL), empowerment (DES), and quality of information (QPP) questionnaires were given at baseline and after 1 and 2 study years. Clinical data came from the Swedish pediatric diabetes quality registry SWEDIABKIDS. Results There was a continuous flow of site visits, decreasing in summer and Christmas periods. In 119/233 families (51%), someone visited the portal the first study year and 169/484 (35%) the second study year. The outcome variables did not differ between intervention and control group. No adverse treatment or self-care effects were identified. A higher proportion of mothers compared to fathers visited once or more the first year (P<.001) and the second year (P<.001). The patients who had someone in the family visiting the portal 5 times or more, had shorter diabetes duration (P=.006), were younger (P=.008), had lower HbA1c after 1 year of access (P=.010), and were more often girls (P<.001). Peer interaction seems to be a valued aspect. Conclusions The Web 2.0 portal may be useful as a complement to traditional care for this target group. Widespread use of a portal would need integration in routine care and promotion by diabetes team members. Trial Registration International Standard Randomized Controlled Trial Number (ISRCTN):92107365; http://www.controlled-trials.com/ISRCTN92107365/ (Archived by WebCite at http://webcitation.org/6IkiIvtSb).

Ludvigsson, Johnny; Nordfeldt, Sam

2013-01-01

59

Process-aware EHR BPM systems: two prototypes and a conceptual framework.  

PubMed

Systematic methods to improve the effectiveness and efficiency of electronic health record-mediated processes will be key to EHRs playing an important role in the positive transformation of healthcare. Business process management (BPM) systematically optimizes process effectiveness, efficiency, and flexibility. Therefore BPM offers relevant ideas and technologies. We provide a conceptual model based on EHR productivity and negative feedback control that links EHR and BPM domains, describe two EHR BPM prototype modules, and close with the argument that typical EHRs must become more process-aware if they are to take full advantage of BPM ideas and technology. A prediction: Future extensible clinical groupware will coordinate delivery of EHR functionality to teams of users by combining modular components with executable process models whose usability (effectiveness, efficiency, and user satisfaction) will be systematically improved using business process management techniques. PMID:20841659

Webster, Charles; Copenhaver, Mark

2010-01-01

60

The education on landslides through the "BE-SAFE-NET" web-portal on Disaster Awareness.  

NASA Astrophysics Data System (ADS)

The website on Disaster Awareness with the use of the internet "BE-SAFE-NET" is developed within the framework of the FORM-OSE programme (European Training Programme for South, East and West) of the EUR-OPA Major Hazards Agreement, hosted by the European Centre for Disaster Awareness with the use of the internet (BE-SAFE-NET, Nicosia, Cyprus). The website is dedicated for school actors (school-level children, teachers, administrative and technical staff, families and local authorities) in order to: - Inform on regulations, on tools for raising awareness for natural and man-made risks and on preventative measures; - Train children, teachers, administrative and technical staff and local authorities; - Produce interactive figures, photographs, videos and games; - Interact with newsgroups and electronic conferences. Together with the EUR-OPA Centre of Nicosia, the project associates several centres of the Major Hazards Agreement network: the European University for the Cultural Heritage (CUEBC) of Ravello (Italy) the European Centre for Risk Prevention (ECRP) of Sofia (Bulgaria), and the European Centre on Geomorphological Hazards (CERG) of Strasbourg (France). "BE-SAFE-NET" is defined as a network among European countries in order to provide e-learning material on natural hazards and risks primarily for schools (secondary school teachers), but also for the public in general. On the webpage, teachers, pupils and the interested public should find information on disaster prevention, preparation, immediate reaction and rehabilitation. The aim of the paper is to present the structure and the organisation of the web-portal following the pilot project focused on landslides and managed by CERG. Some examples of landslides pedagogical material are also presented. The website is structured in five main sections: 1. About the initiative; 2. Definition of common concepts (e.g. hazard (natural and man made), vulnerability, risk, disaster); 3. Pedagogical material (e.g. case studies, photos, learning exercises); 4. Protect yourself; 5. Discussion forum. Based on the experience gained in preparing the landslide pedagogical documents, a clear guidelines for preparing material related to other risks (seismic, floods, snow avalanches, etc, ...) will be helpful for the ultimate goal of the website that is to provide information and material for secondary school teachers in order to prepare associated curricula (and consequently avoiding University grade documents). The proposed scheme for the X specific risk (X is an example of threat) is: 1. What is X? 2. What are the types of X? 3. Why do X occur? 4. Where do X occur, and what were the largest X in the World and in Europe? 5. What could be the consequences of X in terms of human, socio-economic and environmental loss? 6. Can the causes of X be influenced by human behaviour? 8. Can X be predicted? 9. Is there any option to prevent X? 10. Is there any option to mitigate the consequences of X? 11. What to do in case of X? 12. What type of maps on X exists? What is their use? Does the public have access to these maps and from where? For the 12 questions, the contributors were requested to propose a maximum of 20 lines on the main page (so called "first level") and links to specific page (so called "second level") with additional and more detailed information. They were also required to provide for every question additional available material, such as the description of pedagogic case studies, examples of lessons learnt, learning exercises, relevant images, videos and web links). The website is still in progress for further natural and man-made hazards. The landslide pilot section is now nearly complete.

Maquaire, O.; Castaldini, D.; Malet, J.-P.; von Elverfeldt, K.; Pla, F.; Soldati, M.; Greco, R.; Pasuto, A.

2009-04-01

61

Grid Computing Portals Lecture  

NSDL National Science Digital Library

Grid Computing Lecture~~Grid portals: purpose, application-based portals, historical examples, GPDK, Gridport, etc., OGCE2/gridsphere portal, portal implementation, portlets, JSR 168, portlet source and deployment files.

Ferner, Clayton; Wilkinson, Barry

2011-07-05

62

Virginia Community College Geospatial Portal  

NSDL National Science Digital Library

The VCCS Geospatial Portal serves as a gateway of information for VCCS faculty, students, and others interested in supporting the development of a geospatially literate workforce in Virginia. The VCCS Geospatial Portal supports the efforts of VCCS member colleges by: providing a calendar of geospatial events and activities across the state, developing and promoting geospatial career awareness efforts and related opportunities; enhancing the precollege geospatial pipeline; and facilitating collaboration among VCCS faculty by supporting the sharing of geospatial curricula and other educational resources.

2011-07-22

63

Educational Web Portals: Guidelines for Selection and Use. A Guide To Help School District Administrators Assess the Quality, Usefulness and Reliability of Commercially Provided Educational Web Portals Designed for Schools.  

ERIC Educational Resources Information Center

This document describes what a Web portal is (i.e., a Web site that allows access to many resources and services, such as instructional materials, lessons plans, news about current events, instant messaging and e-mail, and the ability to conduct controlled searches). Several questions that school administrators need to consider related to the…

Burke, Jennifer

64

Ocean Portal  

NSDL National Science Digital Library

Ocean Portal is a high-level directory of Ocean Data and Information related web sites. The object of the site is to help scientists and other ocean experts in locating data and information. Sites are listed in a directory with headings that include information, data, scientific topics, agencies and societies, among others.

Team, Ioc/iode M.; Oceanportal.org

65

Developing an electronic health record (EHR) for methadone treatment recording and decision support  

Microsoft Academic Search

BACKGROUND: In this paper, we give an overview of methadone treatment in Ireland and outline the rationale for designing an electronic health record (EHR) with extensibility, interoperability and decision support functionality. Incorporating several international standards, a conceptual model applying a problem orientated approach in a hierarchical structure has been proposed for building the EHR. METHODS: A set of archetypes has

Liang Xiao; Gráinne Cousins; Brenda Courtney; Lucy Hederman; Tom Fahey; Borislav D Dimitrov

2011-01-01

66

Factors and Forces Affecting EHR System Adoption: Report of a 2004 ACMI Discussion  

Microsoft Academic Search

After the first session of the American College of Medical Informatics 2004 retreat, during which the history of electronic health records was reviewed, the second session served as a forum for discussion about the state of the art of EHR adoption. Adoption and diffusion rates for both inpatient and outpatient EHRs are low for a myriad of reasons ranging from

JOAN S. ASH; DAVID W. BATES

2004-01-01

67

UNESCO Library Portal  

NSDL National Science Digital Library

This site from UNESCO is offered as a resource for information on both worldwide libraries and issues and news related to librarianship, with an emphasis on "activities in the Organization's fields of competence such as education, sciences, culture and information." As with most portals, this metasite features annotated links organized by category and topic. In this case, they include library Websites (organized by type), library associations and networks, preservation and access initiatives, librarianship, education and training, and conferences and meetings (this section helpfully lists specific events). Other features include library news and a featured site on the main page, an internal search engine, and a free newsletter.

68

Export Portal  

NSDL National Science Digital Library

Recently launched by the US Department of Commerce, Export Portal offers far-reaching resources about trade and exporting. Featured on the site is an online guide, "Get International Trade Assistance," which provides information and a collection of helpful links on expanding businesses to include trade. The site also includes links to US government Websites dealing with trade and export, which feature statistics, market research, advocacy, and a calendar of events. Finally, the site lists links to the major government agencies that are involved in trade and export. Although Export Portal does not offer much original information, it's extremely helpful to have a government clearinghouse for trade information organized by both agency and topic.

69

Considering User Satisfaction in Designing Web-Based Portals.  

ERIC Educational Resources Information Center

Discusses how Web portals can best serve higher education institutions if portal designers first understand and satisfy user needs. Shares findings from a usability study of an Indiana University enterprise portal application, which indicated that many existing interaction design principles still apply. (EV)

Zazelenchuk, Todd W.; Boling, Elizabeth

2003-01-01

70

Factors Influencing Student Acceptance and Use of Academic Portals  

ERIC Educational Resources Information Center

Institutions of higher education have increasing turned to web portals as a way to connect with students. These portals are designed to provide students a centralized point of access to information and services. In spite of the efforts put into developing and maintaining these portals, their use by students can be disappointing. The study…

Presley, Adrien; Presley, Theresa

2009-01-01

71

Avoiding the trap in the HITECH Act's incentive timeframe for implementing the EHR.  

PubMed

The American Recovery and Reinvestment Act of 2009, often called the Stimulus Package or the Stimulus Bill, contains a section called the Health Information Technology for Economic and Clinical Health Act (HITECH Act). The HITECH Act made several significant changes to the current HIPAA Security and Privacy Rules and provided funds and incentives to increase the use of electronic health records (EHRs) by eligible physicians and eligible hospitals, as discussed below. The HITECH Act also provides funding for the Office of the National Coordinator for Health Information Technology, which oversees technology standards, implementation strategies, and impact assessment. The goals of the Office of National Coordinator are to achieve use of an EHR for each person in the country by 2014 and to develop a nationwide health information technology infrastructure in support of the first goal. Further, the HITECH Act provides funding for establishing at least 70 regional centers to help promote the adoption of EHRs. These centers are to offer technical assistance, guidance, and information on best practices to help providers achieve meaningful use of EHRs. This article will define the EHR, discuss the HITECH Act EHR stimulus, and explain the problem with the HITECH Act EHR incentive time-frame. PMID:20973376

Tomes, Jonathan P

2010-01-01

72

Analysis of the EHR systems in Spanish Primary Public Health System: the lack of interoperability.  

PubMed

This paper presents the impact of the Electronic Health Records (EHRs) systems jointly in the Spanish Primary Public Health System. Different EHRs that exist in each of the Spanish regions are discussed. Moreover, other purpose of this analysis is to identify the current state of knowledge about health information systems adoption in primary care in Spain. For the analysis and study of EHRs systems in Spain we have relied on the use of different sources, mostly items related to the study of EHRs systems in different areas. We will analyze some technical aspects of these and some of their major implications, both positive and negative. Moreover, we have resorted to make direct contact with the organizations that have implemented the EHRs systems. The result of this study leads to a main idea, the need for interoperability between different systems. We will delve into how we have reached this conclusion and that is the key to EHRs systems homogenization of Spanish territory. EHR systems used in different regions of Spain offer the access to medical information as well as provide a clinical analysis of each patient more quickly. The adoption of health information systems is seen world wide as one method to mitigate the widening health care demand and supply gap. PMID:22198096

de la Torre, Isabel; González, Sandra; López-Coronado, Miguel

2012-10-01

73

The EHR solution to clinical trial recruitment in physician groups. | accrualnet.cancer.gov  

Cancer.gov

This article was written by the president and founder of the Holston Medical Group and explains his company’s success with an electronic health record (EHR). The EHR is used among 102 providers in 26 locations and has been used to enroll thousands of patients in more than 250 clinical trials. The Holston Medical Group has determined that the use of the EHR Web-based technology can significantly streamline patient recruitment, speed monitoring, and help to prevent protocol failure—all while increasing revenue stream.

74

Becoming a Learning Organization: New Directions in Science Education Research at the National Science Foundation  

Microsoft Academic Search

The Education and Human Resources (EHR) Directorate at the National Science Foundation has been examining its role in supporting the development of new approaches to science, technology, engineering and mathematics (STEM) education. This article explores what it means to be scientifically literate, what it takes to become a learning organization, how the EHR Directorate is working towards becoming such an

Judith A. Ramaley; Barbara M. Olds; Janice Earle

2005-01-01

75

Leveraging EHR Data for Outcomes and Comparative Effectiveness Research in Oncology  

PubMed Central

Along with the increasing adoption of electronic health records (EHRs) are expectations that data collected within EHRs will be readily available for outcomes and comparative effectiveness research. Yet the ability to effectively share and reuse data depends on implementing and configuring EHRs with these goals in mind from the beginning. Data sharing and integration must be planned both locally as well as nationally. The rich data transmission and semantic infrastructure developed by the National Cancer Institute (NCI) for research provides an excellent example of moving beyond paper-based paradigms and exploiting the power of semantically robust, network-based systems, and engaging both domain and informatics expertise. Similar efforts are required to address current challenges in sharing EHR data.

Harris, Marcelline R.; Buyuktur, Ayse G.; Clark, Patricia M.; An, Lawrence C.; Hanauer, David A.

2012-01-01

76

Human Factors Guidance to Prevent Healthcare Disparities with the Adoption of EHRs.  

National Technical Information Service (NTIS)

This report is derived from several widely recognized international standards and the current scientific literature. It is intended for EHR system designers, developers, system architects and system engineers. The advances in Information Technology (IT) t...

M. C. Gibbons M. T. Quinn S. Z. Lowry

2011-01-01

77

Using EHRs to integrate research with patient care: promises and challenges  

PubMed Central

Clinical research is the foundation for advancing the practice of medicine. However, the lack of seamless integration between clinical research and patient care workflow impedes recruitment efficiency, escalates research costs, and hence threatens the entire clinical research enterprise. Increased use of electronic health records (EHRs) holds promise for facilitating this integration but must surmount regulatory obstacles. Among the unintended consequences of current research oversight are barriers to accessing patient information for prescreening and recruitment, coordinating scheduling of clinical and research visits, and reconciling information about clinical and research drugs. We conclude that the EHR alone cannot overcome barriers in conducting clinical trials and comparative effectiveness research. Patient privacy and human subject protection policies should be clarified at the local level to exploit optimally the full potential of EHRs, while continuing to ensure participant safety. Increased alignment of policies that regulate the clinical and research use of EHRs could help fulfill the vision of more efficiently obtaining clinical research evidence to improve human health.

Appelbaum, Paul; Hripcsak, George; Kronish, Ian; Busacca, Linda; Davidson, Karina W; Bigger, J Thomas

2012-01-01

78

SNOMED CT Survey: An Assessment of Implementation in EMR/EHR Applications  

PubMed Central

A descriptive study of health information technology (HIT) vendors was conducted to identify which EMR/EHR vendors currently work or anticipate working with SNOMED CT, determine the prevalence of SNOMED CT integration in electronic medical record (EMR) and electronic health record (EHR) products, identify the available and potential future applications for SNOMED CT in EMR/EHR systems, and learn what prompts vendors to include SNOMED CT in EMR/EHR systems. The Web-based survey consisting of 25 questions was fielded in November–December 2006. Seventy-two responses were received. The results from this survey on SNOMED CT show a mixed message from respondents with regard to the prevalence of SNOMED CT integration in EMR/EHR products. Those with plans for implementation cited strategic reasons most often. However, HIT vendors who have not yet obtained a SNOMED CT license are waiting for market forces to drive deployment in their systems. Finally, survey respondents currently working with SNOMED CT indicated an expected increase over the next three years in EMR/EHR applications where SNOMED CT will be implemented.

Giannangelo, Kathy; Fenton, Susan H.

2008-01-01

79

Importance-satisfaction analysis for primary care physicians' perspective on EHRs in Taiwan.  

PubMed

The Taiwan government has been promoting Electronic Health Records (EHRs) to primary care physicians. How to extend EHRs adoption rate by measuring physicians' perspective of importance and performance of EHRs has become one of the critical issues for healthcare organizations. We conducted a comprehensive survey in 2010 in which a total of 1034 questionnaires which were distributed to primary care physicians. The project was sponsored by the Department of Health to accelerate the adoption of EHRs. 556 valid responses were analyzed resulting in a valid response rate of 53.77%. The data were analyzed based on a data-centered analytical framework (5-point Likert scale). The mean of importance and satisfaction of four dimensions were 4.16, 3.44 (installation and maintenance), 4.12, 3.51 (product effectiveness), 4.10, 3.31 (system function) and 4.34, 3.70 (customer service) respectively. This study provided a direction to government by focusing on attributes which physicians found important but were dissatisfied with, to close the gap between actual and expected performance of the EHRs. The authorities should emphasize the potential advantages in meaningful use and provide training programs, conferences, technical assistance and incentives to enhance the national level implementation of EHRs for primary physicians. PMID:24914640

Ho, Cheng-Hsun; Wene, Hsyien-Chia; Chu, Chi-Ming; Wu, Yi-Syuan; Wang, Jen-Leng

2014-06-01

80

Importance-Satisfaction Analysis for Primary Care Physicians' Perspective on EHRs in Taiwan †  

PubMed Central

The Taiwan government has been promoting Electronic Health Records (EHRs) to primary care physicians. How to extend EHRs adoption rate by measuring physicians’ perspective of importance and performance of EHRs has become one of the critical issues for healthcare organizations. We conducted a comprehensive survey in 2010 in which a total of 1034 questionnaires which were distributed to primary care physicians. The project was sponsored by the Department of Health to accelerate the adoption of EHRs. 556 valid responses were analyzed resulting in a valid response rate of 53.77%. The data were analyzed based on a data-centered analytical framework (5-point Likert scale). The mean of importance and satisfaction of four dimensions were 4.16, 3.44 (installation and maintenance), 4.12, 3.51 (product effectiveness), 4.10, 3.31 (system function) and 4.34, 3.70 (customer service) respectively. This study provided a direction to government by focusing on attributes which physicians found important but were dissatisfied with, to close the gap between actual and expected performance of the EHRs. The authorities should emphasize the potential advantages in meaningful use and provide training programs, conferences, technical assistance and incentives to enhance the national level implementation of EHRs for primary physicians.

Ho, Cheng-Hsun; Wen, Hsyien-Chia; Chu, Chi-Ming; Wu, Yi-Syuan; Wang, Jen-Leng

2014-01-01

81

Creating content modules for Chinese EHR documents and their trial implementation in Wuwei City.  

PubMed

Numerous and diverse paper-based health record documents are currently used in China, which are not only different from each other but are also inconsistent with national regulations. If these documents are made to be structured and electronically available, the health records information can be processed by computers to promote a shareable electronic health record (EHR) across organizations. As such, this work was intended to develop a set of content modules to be employed as reusable building blocks for converting the paper-based health records to structured EHR documents. Therefore, in this study, we developed 77 content modules based on the documents of national specifications and implemented them to Wuwei City as a trial. According to the EHR requirements of Wuwei, we added two new content modules in addition to the 77 existing content modules. We then successfully established an EHR system based on the new content modules in combination with the original content modules. This paper could contribute to the construction of structured Chinese EHR documents and provide some experiences as a reference for building EHR systems. PMID:22399068

Yang, Peng; Pan, Feng; Xu, Yongyong; Liu, Danhong; Liang, Ying; Yang, Zhe; Sun, Caihong; Ye, Qing

2012-12-01

82

Paleontology Portal  

NSDL National Science Digital Library

Created by the University of California Museum of Paleontology, with assistance from the Society of Vertebrate Paleontology and the United States Geological Survey, the Paleontology Portal is a nice resource for anyone who may be interested in the field of paleontology. The site is divided into a number of separate areas, and visitors would do well to begin by taking a look through the Exploring Time & Space feature. Clicking on this feature will bring users to a map of the United States that is overlaid with the complete array of geological time periods, such as the Quaternary, Permian, and the Triassic, to name but a few. Along with this helpful resource, the fossil gallery is a real treat, as visitors can view fossilized remains by geologic time period or by taxonomic group. Finally, the Famous Flora and Fauna area allows visitors the opportunity to view such notable finds as the Burgess Shale, the Petrified Forest, and of course, the La Brea Tar Pits.

83

Portal Wisconsin  

NSDL National Science Digital Library

Created by the Cultural Coalition (which includes seven statewide organizations, including the Wisconsin Humanities Council), the Portal Wisconsin site is designed to "serve as a gateway to the rich content of the Cultural Coalition partner organizations, as well as other cultural entities throughout the state." To that end, visitors to the site will find out about the wealth of cultural endeavors throughout Wisconsin, including visual arts, music, culture, and theater. Their homepage features a daily calendar of cultural events going on around the state, a helpful search engine, and links to the seven institutions that comprise the Cultural Coalition. One of the site's highlights is the ability to browse various thematically organized interest areas for event calendars, related links, and galleries. One of these galleries includes works by local artists, organized by medium, such as graphic art, ceramics, and textiles. The digital media section of the site is well organized, and visitors can take virtual tours of sculpture gardens around the state and listen to local poets read their work. Finally, visitors can join in discussion forums and look for job and volunteer opportunities.

2003-01-01

84

The GIS 2 GPS Portal  

NSDL National Science Digital Library

This resource, created by The GIS 2 GPS Portal Resources For Educators & Students, "want[s] to make educators and students aware of these two new emerging technologies, Geographical Information System (GIS), Global Positioning System (GPS), and Remote Sensing (RS)." The resource contains links to courses, conferences, collaborators, software, hardware, discussion forums, picture galleries and blogs. Additional subtopics on GIS and GPS are featured on the site. These contain things such as lesson plans and other projects for education. Overall, this is a nice site for a broad overview of information systems and the technology behind it.

2009-09-22

85

Integration of an OWL-DL Knowledge Base with an EHR Prototype and Providing Customized Information.  

PubMed

When clinicians use electronic health record (EHR) systems, their ability to obtain general knowledge is often an important contribution to their ability to make more informed decisions. In this paper we describe a method by which an external, formal representation of clinical and molecular genetic knowledge can be integrated into an EHR such that customized knowledge can be delivered to clinicians in a context-appropriate manner.Web Ontology Language-Description Logic (OWL-DL) is a formal knowledge representation language that is widely used for creating, organizing and managing biomedical knowledge through the use of explicit definitions, consistent structure and a computer-processable format, particularly in biomedical fields. In this paper we describe: 1) integration of an OWL-DL knowledge base with a standards-based EHR prototype, 2) presentation of customized information from the knowledge base via the EHR interface, and 3) lessons learned via the process. The integration was achieved through a combination of manual and automatic methods. Our method has advantages for scaling up to and maintaining knowledge bases of any size, with the goal of assisting clinicians and other EHR users in making better informed health care decisions. PMID:24997857

Jing, Xia; Kay, Stephen; Marley, Tom; Hardiker, Nicholas R

2014-09-01

86

In Emergency Departments, Radiologists' Access To EHRs May Influence Interpretations And Medical Management.  

PubMed

The adoption of electronic health records (EHRs) that meet federal meaningful-use standards is a major US national policy priority. Policy makers recognize the potential of electronic communication in delivering high-quality health care, particularly in an environment of expanding remote access to medical care and the ever-increasing need to transmit health care records across institutions. To demonstrate this principle, we sought to estimate the significance of EHR access in emergent neuroradiologic interpretations. Three neuroradiologists conducted a prospective expert-rater analysis of 2,000 consecutive head computed tomography (CT) exams ordered by emergency department (ED) physicians. For each head CT exam, the neuroradiologists compared medical information generated by ED physicians to information generated by the interpreting radiologists who had access to additional EHR-derived patient data. In 6.1 percent of the head CT exams, the neuroradiologists reached consensus-meaning two out of three agreed-that the additional clinical data derived from the EHR was "very likely" to influence radiological interpretations and that the lack of that data would have adversely affected medical management in those patients. Health care providers must recognize the value of implementing EHRs and foster their widespread adoption. PMID:24799577

Franczak, Michael J; Klein, Madeline; Raslau, Flavius; Bergholte, Jo; Mark, Leighton P; Ulmer, John L

2014-05-01

87

Model Development for EHR Interdisciplinary Information Exchange of ICU Common Goals  

PubMed Central

Purpose Effective interdisciplinary exchange of patient information is an essential component of safe, efficient, and patient–centered care in the intensive care unit (ICU). Frequent handoffs of patient care, high acuity of patient illness, and the increasing amount of available data complicate information exchange. Verbal communication can be affected by interruptions and time limitations. To supplement verbal communication, many ICUs rely on documentation in electronic health records (EHRs) to reduce errors of omission and information loss. The purpose of this study was to develop a model of EHR interdisciplinary information exchange of ICU common goals. Methods The theoretical frameworks of distributed cognition and the clinical communication space were integrated and a previously published categorization of verbal information exchange was used. 59.5 hours of interdisciplinary rounds in a Neurovascular ICU were observed and five interviews and one focus group with ICU nurses and physicians were conducted. Results Current documentation tools in the ICU were not sufficient to capture the nurses' and physicians' collaborative decision-making and verbal communication of goal-directed actions and interactions. Clinicians perceived the EHR to be inefficient for information retrieval, leading to a further reliance on verbal information exchange. Conclusion The model suggests that EHRs should support: 1) Information tools for the explicit documentation of goals, interventions, and assessments with synthesized and summarized information outputs of events and updates; and 2) Messaging tools that support collaborative decision-making and patient safety double checks that currently occur between nurses and physicians in the absence of EHR support.

Collins, Sarah A.; Bakken, Suzanne; Vawdrey, David K.; Coiera, Enrico; Currie, Leanne

2010-01-01

88

Knowledge Dissemination and use in Science and mathematics education- A Literature Review  

NSF Publications Database

... and mathematics education: A Literature Review Type : Report NSF Org: EHR / RED Date : May 1, 1993 ... AND MATHEMATICS EDUCATION: A LITERATURE REVIEW Janet Hutchinson Michael Huberman Prepared for the ...

89

The Advent of Portals.  

ERIC Educational Resources Information Center

Explains portals as tools that gather a variety of electronic information resources, including local library resources, into a single Web page. Highlights include cross-database searching; integration with university portals and course management software; the ARL (Association of Research Libraries) Scholars Portal Initiative; and selected vendors…

Jackson, Mary E.

2002-01-01

90

Unintended errors with EHR-based result management: a case series.  

PubMed

Test result management is an integral aspect of quality clinical care and a crucial part of the ambulatory medicine workflow. Correct and timely communication of results to a provider is the necessary first step in ambulatory result management and has been identified as a weakness in many paper-based systems. While electronic health records (EHRs) hold promise for improving the reliability of result management, the complexities involved make this a challenging task. Experience with test result management is reported, four new categories of result management errors identified are outlined, and solutions developed during a 2-year deployment of a commercial EHR are described. Recommendations for improving test result management with EHRs are then given. PMID:20064810

Yackel, Thomas R; Embi, Peter J

2010-01-01

91

Unintended errors with EHR-based result management: a case series  

PubMed Central

Test result management is an integral aspect of quality clinical care and a crucial part of the ambulatory medicine workflow. Correct and timely communication of results to a provider is the necessary first step in ambulatory result management and has been identified as a weakness in many paper-based systems. While electronic health records (EHRs) hold promise for improving the reliability of result management, the complexities involved make this a challenging task. Experience with test result management is reported, four new categories of result management errors identified are outlined, and solutions developed during a 2-year deployment of a commercial EHR are described. Recommendations for improving test result management with EHRs are then given.

Embi, Peter J

2010-01-01

92

A grid-based implementation of XDS-I as a part of a metropolitan EHR in Shanghai  

Microsoft Academic Search

A number of hospitals in Shanghai are piloting the development of an EHR solution based on a grid concept with a service-oriented architecture (SOA). The first phase of the project targets the Diagnostic Imaging domain and allows seamless sharing of images and reports across the multiple hospitals. The EHR solution is fully aligned with the IHE XDS-I integration profile and

Jianguo Zhang; Chenghao Zhang; Jianyong Sun Sr.; Yuanyuan Yang; Jin Jin; Fenghai Yu; Zhenyu He; Xichuang Zheng; Huanrong Qin; Jie Feng; Guozheng Zhang

2007-01-01

93

NSF Awards First Series of Networking Infrastructure for Education (NIE) Grants  

NSF Publications Database

Title : NSF 95-25 NSF Awards First Series of Networking Infrastructure for Education (NIE) Grants Type : Dir of Awards NSF Org: EHR Date : January 27, 1995 File : nsf9525a NSF Awards First Series of Networking Infrastructure for Education (NIE) Grants In FY 1994 the Computer and Information Science and Engineering (CISE) and Education and Human Resources (EHR) Directorates established the Networking Infrastructure for Education (NIE) program. Paul Helfrich - Franklin Institute Science Museum ...

94

Pathophysiology of portal hypertension.  

PubMed

Portal hypertension is a major complication of liver disease that results from a variety of pathologic conditions that increase the resistance to the portal blood flow into the liver. As portal hypertension develops, the formation of collateral vessels and arterial vasodilation progresses, which results in increased blood flow to the portal circulation. Hyperdynamic circulatory syndrome develops, leading to esophageal varices or ascites. This article summarizes the factors that increase (1) intrahepatic vascular resistance and (2) the blood flow in the splanchnic and systemic circulations in liver cirrhosis. In addition, the future directions of basic/clinical research in portal hypertension are discussed. PMID:24679494

Iwakiri, Yasuko

2014-05-01

95

Cognitive Analysis of a Highly Configurable Web 2.0 EHR Interface  

PubMed Central

We summarize findings of one case from initial in-lab usability and cognitive tests of 13 clinicians using MedWISE, a widget-based electronic health record (EHR) interface, to familiarize themselves with real patient cases and verbalize their assessment and plan. Multiple methods were used to examine patterns of use, time taken, use of new functionality, user-created interfaces, and diagnostic and human-computer interaction processes. All clinicians learned MedWISE quickly, most used more than half the new functionalities and found MedWISE easy to use and useful. We discuss implications for the design of future EHRs.

Senathirajah, Yalini; Kaufman, David; Bakken, Suzanne

2010-01-01

96

Modeling healthcare authorization and claim submissions using the openEHR dual-model approach  

PubMed Central

Background The TISS standard is a set of mandatory forms and electronic messages for healthcare authorization and claim submissions among healthcare plans and providers in Brazil. It is not based on formal models as the new generation of health informatics standards suggests. The objective of this paper is to model the TISS in terms of the openEHR archetype-based approach and integrate it into a patient-centered EHR architecture. Methods Three approaches were adopted to model TISS. In the first approach, a set of archetypes was designed using ENTRY subclasses. In the second one, a set of archetypes was designed using exclusively ADMIN_ENTRY and CLUSTERs as their root classes. In the third approach, the openEHR ADMIN_ENTRY is extended with classes designed for authorization and claim submissions, and an ISM_TRANSITION attribute is added to the COMPOSITION class. Another set of archetypes was designed based on this model. For all three approaches, templates were designed to represent the TISS forms. Results The archetypes based on the openEHR RM (Reference Model) can represent all TISS data structures. The extended model adds subclasses and an attribute to the COMPOSITION class to represent information on authorization and claim submissions. The archetypes based on all three approaches have similar structures, although rooted in different classes. The extended openEHR RM model is more semantically aligned with the concepts involved in a claim submission, but may disrupt interoperability with other systems and the current tools must be adapted to deal with it. Conclusions Modeling the TISS standard by means of the openEHR approach makes it aligned with ISO recommendations and provides a solid foundation on which the TISS can evolve. Although there are few administrative archetypes available, the openEHR RM is expressive enough to represent the TISS standard. This paper focuses on the TISS but its results may be extended to other billing processes. A complete communication architecture to simulate the exchange of TISS data between systems according to the openEHR approach still needs to be designed and implemented.

2011-01-01

97

Cognitive Analysis of a Highly Configurable Web 2.0 EHR Interface.  

PubMed

We summarize findings of one case from initial in-lab usability and cognitive tests of 13 clinicians using MedWISE, a widget-based electronic health record (EHR) interface, to familiarize themselves with real patient cases and verbalize their assessment and plan. Multiple methods were used to examine patterns of use, time taken, use of new functionality, user-created interfaces, and diagnostic and human-computer interaction processes. All clinicians learned MedWISE quickly, most used more than half the new functionalities and found MedWISE easy to use and useful. We discuss implications for the design of future EHRs. PMID:21347075

Senathirajah, Yalini; Kaufman, David; Bakken, Suzanne

2010-01-01

98

Building a Common Ground on the Clinical Case: Design, Implementation and Evaluation of an Information Model for a Handover EHR.  

PubMed

Handovers need a common ground on the clinical cases between the members of the successive shifts to establish continuity of care. Conventional electronic patient record systems (EHR) proved to be only insufficiently suitable for supporting the grounding process. Against this background we proposed a basic concept for a handover EHR that extends general EHRs in particular openEHR based systems. The resulting handover information model was implemented in a database and evaluated based on 120 clinical cases. The information items of these cases could be mapped successfully to the model, however, the new class "anticipatory guidance" needed to be introduced. The evaluation also demonstrated the importance of highly aggregated information on the clinical case, opinions and meta-information such as the relevance of an item during handovers. Based on these findings, in particular the handover database, handover EHR applications are currently developed to support the grounding process. PMID:24943540

Flemming, Daniel; Paul, Mareike; Hübner, Ursula

2014-01-01

99

Shaping the Future: Strategies for Revitalizing Undergraduate Education; A Conference (Washington, D.C. July 11-13, 1996)  

NSF Publications Database

... Foundation 15 Plenary Session III: The NSF Review of Undergraduate Education and the NRC ?Year of ... George Chair, EHR Advisory Committee for the Review of Undergraduate Education Donald Kennedy Chair ...

100

Opportunities to Increase the Effectiveness of EHR-Based Diabetes Clinical Decision Support  

PubMed Central

There are many opportunities to improve diabetes care through more effective use of EHR-based CDS. The report of Kantor et al. [16] is encouraging because it demonstrates sustained efforts by leading health care organizations to implement diabetes-related EHR-based CDS. However, lack of sophisticated treatment-specific CDS and lack of prioritized recommendations are a cause for concern. Even more disturbing is the substantive heterogeneity in content of diabetes CDS recommendations now in the field. Some of CDS recommendations described by Kantor et al. [16] are clearly not evidence-based and could increase costs while not improving clinical benefits. The timely identification of these problems is an awkward but necessary first step towards improvement. The health care organizations that are pioneers in the field should be congratulated and encouraged to continue their collaborative efforts to increase the efficiency and effectiveness of EHR-based CDS. Attending to the modest proposals put forward here and by others may help translate the massive investments that we have made in EHR technology into clinical benefits for our patients.

O'Connor, P.

2011-01-01

101

Validation of standardized and structured EHR data in the dual model approach.  

PubMed

We present a W3C XML Schema-based method to validate standardized EHR data against semantic constraints that build the knowledge layer within the dual model approach. The approach was tested with three EN/ISO13606 archetypes and an HL7 CDA implementation guide for diabetes therapies. PMID:19745278

Rinner, Christoph; Duftschmid, Georg

2009-01-01

102

CDAPubMed: a browser extension to retrieve EHR-based biomedical literature  

PubMed Central

Background Over the last few decades, the ever-increasing output of scientific publications has led to new challenges to keep up to date with the literature. In the biomedical area, this growth has introduced new requirements for professionals, e.g., physicians, who have to locate the exact papers that they need for their clinical and research work amongst a huge number of publications. Against this backdrop, novel information retrieval methods are even more necessary. While web search engines are widespread in many areas, facilitating access to all kinds of information, additional tools are required to automatically link information retrieved from these engines to specific biomedical applications. In the case of clinical environments, this also means considering aspects such as patient data security and confidentiality or structured contents, e.g., electronic health records (EHRs). In this scenario, we have developed a new tool to facilitate query building to retrieve scientific literature related to EHRs. Results We have developed CDAPubMed, an open-source web browser extension to integrate EHR features in biomedical literature retrieval approaches. Clinical users can use CDAPubMed to: (i) load patient clinical documents, i.e., EHRs based on the Health Level 7-Clinical Document Architecture Standard (HL7-CDA), (ii) identify relevant terms for scientific literature search in these documents, i.e., Medical Subject Headings (MeSH), automatically driven by the CDAPubMed configuration, which advanced users can optimize to adapt to each specific situation, and (iii) generate and launch literature search queries to a major search engine, i.e., PubMed, to retrieve citations related to the EHR under examination. Conclusions CDAPubMed is a platform-independent tool designed to facilitate literature searching using keywords contained in specific EHRs. CDAPubMed is visually integrated, as an extension of a widespread web browser, within the standard PubMed interface. It has been tested on a public dataset of HL7-CDA documents, returning significantly fewer citations since queries are focused on characteristics identified within the EHR. For instance, compared with more than 200,000 citations retrieved by breast neoplasm, fewer than ten citations were retrieved when ten patient features were added using CDAPubMed. This is an open source tool that can be freely used for non-profit purposes and integrated with other existing systems.

2012-01-01

103

Management of Portal Evolution  

Microsoft Academic Search

Abstract Software evolution is an essential concept underlying the engineering of corporate portals. Due tothe complexity of such systems, it requires great effort and is not advisable to design and implement,a feature-complete corporate ,solution. The concept ,of evolutionary ,portal development,helps portal engineers to cope ,with design complexity. While the technical perspective on component based software development and evolution is widely

Hong Tuan Kiet Vo; Helmuth Elsner

2007-01-01

104

Understanding Patient Portal Use: Implications for Medication Management  

PubMed Central

Background The Internet can be leveraged to provide disease management support, including medication adherence promotion that, when tailored, can effectively improve adherence to medications. The growing adoption of patient portals represents an opportunity to support medication management and adherence more broadly, but virtually no data exist about the real and potential impact of existing portals on these outcomes. Objective We sought to (1) understand who uses an existing patient portal and reasons for use and nonuse, (2) understand how portal users are using a portal to manage their medications, and (3) explore participants’ ideas for improving portal functionality for medication management and adherence support. Methods A total of 75 adults with type 2 diabetes participated in a mixed-methods study involving focus groups, a survey, and a medical chart review. We used quantitative data to identify differences between portal users and nonusers, and to test the relationship between the frequency of portal use and glycemic control among users. We used qualitative methods to understand how and why participants use a portal and their ideas for improving its medication management functionality. Results Of the enrolled participants, 81% (61/75) attended a focus group and/or completed a survey; portal users were more likely than nonusers to participate in that capacity (Fisher exact test; P=.01). Users were also more likely than nonusers to be Caucasian/white (Fisher exact test; P<.001), have higher incomes (Fisher exact test; P=.005), and be privately insured (Fisher exact test; P<.001). Users also tended to have more education than nonusers (Mann–Whitney U; P=.05), although this relationship was not significant at P<.05. Among users, more frequent use of a portal was associated with better A1C (Spearman rho =–0.30; P=.02). Reasons for nonuse included not knowing about the portal (n=3), not having access to a computer (n=3), or having a family member serve as an online delegate (n=1). Users reported using the portal to request prescription refills/reauthorizations and to view their medication list, and they were enthusiastic about the idea of added refill reminder functionality. They were also interested in added functionality that could streamline the refill/reauthorization process, alert providers to fill/refill nonadherence, and provide information about medication side effects and interactions. Conclusions Although there are disparities in patient portal use, patients use portals to manage their medications, are enthusiastic about further leveraging portals to support medication management and adherence, and those who use a portal more frequently have better glycemic control. However, more features and functionality within a portal platform is needed to maximize medication management and adherence promotion.

Mayberry, Lindsay Satterwhite; Wallston, Kenneth A; Johnson, Kevin B; Elasy, Tom A

2013-01-01

105

Interprofessional Development of Learning Resources for IBD Patient Portal  

Microsoft Academic Search

Background: This paper summarizes our experiences from a six-month pilot study of a web portal that provided secure communications, education, and support for self-management by Inflammatory Bowel Disease (IBD) patients. An analysis of \\

Grace I Paterson; John L Ginn; Desmond J Leddin; Donald G MacIntosh; Jennifer E Stewart; David Zitner

106

Palomar College GIS Portal: GIS Resources  

NSDL National Science Digital Library

This page from Palomar College features a number of links to GIS data portals and resources for students, instructors and professionals. Resources include links to websites from the USGS, ESRI and NOAA. Resources for educators include lesson plans and teaching materials.

2013-08-08

107

A Climate Data Portal  

Microsoft Academic Search

The Climate Data Portal links geographically distributed climate data servers in Seattle (Washington), Silver Spring (Maryland), and Honolulu (Hawaii) into a network to provide a portal to distributed data in a common data format to researchers and modeling centers. The data server software connects gracefully to legacy data management at the data provider site and uses off-the-shelf CORBA networking middleware

Nancy N. Soreidel; Charles L. Sun; Bernard J. Kilonsky; Donald W. Denbo; Willa H. Zhu; John R. Osborne

2001-01-01

108

Enterprise Information Portals.  

ERIC Educational Resources Information Center

Outlines the generic features of enterprise information portal applications, or corporate portals, which provide users with access to internal and external information resources through a customizable Web browser interface. Examines approaches being taken by vendors, many of whom are adapting software developed for document management and…

White, Martin

2000-01-01

109

The CEOS Water Portal  

NASA Astrophysics Data System (ADS)

The CEOS Water is a one of the DIAS (Data Integration and Analysis System, http://www.editoria.u-tokyo.ac.jp/projects/dias/?locale=en_US) data distributed systems. The CEOS Water Portal system is distributed in the sense that, while the portal system is located in Tokyo, the data is located in archive centers which are globally distributed. For example, some in-situ data is archived at the National Center for Atmospheric Research (NCAR) Earth Observing Laboratory in Boulder, Colorado, USA. The NWP station time series and global gridded model output data is archived at the Max Planck Institute for Meteorology (MPIM) in cooperation with the World Data Centerfor Climate in Hamburg, Germany. Part of satellite data is archived at DIAS storage at the University of Tokyo, Japan. This portal does not store data. Instead, according to requests made by users on the web page, it retrieves data from distributed data centers on-the-fly and lets them download and see rendered images/plots. Considering the popularity among water related data centers, OpenDAP protocol is mainly being used between this portal and most of data centers. And this portal also is connected to a kind of data brokering system, which is already connected to multiple data centers. For this interface, OpenSearch protocol is being used. The CEOS Water Portal intends to extend its users to include decision makers and officers like river administrators by facilitating a feedback loop. One example of data and information flow centered on the CEOS Water Portal is shown below. (1)Scientists get various data needed for Model Calculation (WEB-DHM, for example) via the portal. (2)Scientists use Model output data and do analysis. (3)Scientists register their use cases into the portal. (4)Decision makers and officers can refer and acquire use cases and data easily. Users can access the CEOS Water Portal system at http://waterportal.ceos.org/.

Miura, Satoko; Sekioka, Shinichi; Kuroiwa, Kaori; Kudo, Yoshiyuki; Koide, Michihiro

2014-05-01

110

The quail anatomy portal  

PubMed Central

The Japanese quail is a widely used model organism for the study of embryonic development; however, anatomical resources are lacking. The Quail Anatomy Portal (QAP) provides 22 detailed three-dimensional (3D) models of quail embryos during development from embryonic day (E)1 to E15 generated using optical projection tomography. The 3D models provided can be virtually sectioned to investigate anatomy. Furthermore, using the 3D nature of the models, we have generated a tool to assist in the staging of quail samples. Volume renderings of each stage are provided and can be rotated to allow visualization from multiple angles allowing easy comparison of features both between stages in the database and between images or samples in the laboratory. The use of JavaScript, PHP and HTML ensure the database is accessible to users across different operating systems, including mobile devices, facilitating its use in the laboratory.The QAP provides a unique resource for researchers using the quail model. The ability to virtually section anatomical models throughout development provides the opportunity for researchers to virtually dissect the quail and also provides a valuable tool for the education of students and researchers new to the field. Database URL: http://quail.anatomyportal.org (For review username: demo, password: quail123)

Ruparelia, Avnika A.; Simkin, Johanna E.; Salgado, David; Newgreen, Donald F.; Martins, Gabriel G.; Bryson-Richardson, Robert J.

2014-01-01

111

The quail anatomy portal.  

PubMed

The Japanese quail is a widely used model organism for the study of embryonic development; however, anatomical resources are lacking. The Quail Anatomy Portal (QAP) provides 22 detailed three-dimensional (3D) models of quail embryos during development from embryonic day (E)1 to E15 generated using optical projection tomography. The 3D models provided can be virtually sectioned to investigate anatomy. Furthermore, using the 3D nature of the models, we have generated a tool to assist in the staging of quail samples. Volume renderings of each stage are provided and can be rotated to allow visualization from multiple angles allowing easy comparison of features both between stages in the database and between images or samples in the laboratory. The use of JavaScript, PHP and HTML ensure the database is accessible to users across different operating systems, including mobile devices, facilitating its use in the laboratory.The QAP provides a unique resource for researchers using the quail model. The ability to virtually section anatomical models throughout development provides the opportunity for researchers to virtually dissect the quail and also provides a valuable tool for the education of students and researchers new to the field. DATABASE URL: http://quail.anatomyportal.org (For review username: demo, password: quail123). PMID:24715219

Ruparelia, Avnika A; Simkin, Johanna E; Salgado, David; Newgreen, Donald F; Martins, Gabriel G; Bryson-Richardson, Robert J

2014-01-01

112

Primary care practitioners' views on test result management in EHR-enabled health systems: a national survey  

PubMed Central

Context Failure to notify patients of test results is common even when electronic health records (EHRs) are used to report results to practitioners. We sought to understand the broad range of social and technical factors that affect test result management in an integrated EHR-based health system. Methods Between June and November 2010, we conducted a cross-sectional, web-based survey of all primary care practitioners (PCPs) within the Department of Veterans Affairs nationwide. Survey development was guided by a socio-technical model describing multiple inter-related dimensions of EHR use. Findings Of 5001 PCPs invited, 2590 (51.8%) responded. 55.5% believed that the EHRs did not have convenient features for notifying patients of test results. Over a third (37.9%) reported having staff support needed for notifying patients of test results. Many relied on the patient's next visit to notify them for normal (46.1%) and abnormal results (20.1%). Only 45.7% reported receiving adequate training on using the EHR notification system and 35.1% reported having an assigned contact for technical assistance with the EHR; most received help from colleagues (60.4%). A majority (85.6%) stayed after hours or came in on weekends to address notifications; less than a third reported receiving protected time (30.1%). PCPs strongly endorsed several new features to improve test result management, including better tracking and visualization of result notifications. Conclusions Despite an advanced EHR, both social and technical challenges exist in ensuring notification of test results to practitioners and patients. Current EHR technology requires significant improvement in order to avoid similar challenges elsewhere.

Singh, Hardeep; Spitzmueller, Christiane; Petersen, Nancy J; Sawhney, Mona K; Smith, Michael W; Murphy, Daniel R; Espadas, Donna; Laxmisan, Archana; Sittig, Dean F

2013-01-01

113

Building a robust, scalable and standards-driven infrastructure for secondary use of EHR data: the SHARPn project.  

PubMed

The Strategic Health IT Advanced Research Projects (SHARP) Program, established by the Office of the National Coordinator for Health Information Technology in 2010 supports research findings that remove barriers for increased adoption of health IT. The improvements envisioned by the SHARP Area 4 Consortium (SHARPn) will enable the use of the electronic health record (EHR) for secondary purposes, such as care process and outcomes improvement, biomedical research and epidemiologic monitoring of the nation's health. One of the primary informatics problem areas in this endeavor is the standardization of disparate health data from the nation's many health care organizations and providers. The SHARPn team is developing open source services and components to support the ubiquitous exchange, sharing and reuse or 'liquidity' of operational clinical data stored in electronic health records. One year into the design and development of the SHARPn framework, we demonstrated end to end data flow and a prototype SHARPn platform, using thousands of patient electronic records sourced from two large healthcare organizations: Mayo Clinic and Intermountain Healthcare. The platform was deployed to (1) receive source EHR data in several formats, (2) generate structured data from EHR narrative text, and (3) normalize the EHR data using common detailed clinical models and Consolidated Health Informatics standard terminologies, which were (4) accessed by a phenotyping service using normalized data specifications. The architecture of this prototype SHARPn platform is presented. The EHR data throughput demonstration showed success in normalizing native EHR data, both structured and narrative, from two independent organizations and EHR systems. Based on the demonstration, observed challenges for standardization of EHR data for interoperable secondary use are discussed. PMID:22326800

Rea, Susan; Pathak, Jyotishman; Savova, Guergana; Oniki, Thomas A; Westberg, Les; Beebe, Calvin E; Tao, Cui; Parker, Craig G; Haug, Peter J; Huff, Stanley M; Chute, Christopher G

2012-08-01

114

Non-invasive lightweight integration engine for building EHR from autonomous distributed systems.  

PubMed

In this paper we describe Pangea-LE, a message-oriented lightweight data integration engine that allows homogeneous and concurrent access to clinical information from disperse and heterogeneous data sources. The engine extracts the information and passes it to the requesting client applications in a flexible XML format. The XML response message can be formatted on demand by appropriate Extensible Stylesheet Language (XSL) transformations in order to meet the needs of client applications. We also present a real deployment in a hospital where Pangea-LE collects and generates an XML view of all the available patient clinical information. The information is presented to healthcare professionals in an Electronic Health Record (EHR) viewer Web application with patient search and EHR browsing capabilities. Implantation in a real setting has been a success due to the non-invasive nature of Pangea-LE which respects the existing information systems. PMID:17600763

Angulo, Carlos; Crespo, Pere; Maldonado, José A; Moner, David; Pérez, Daniel; Abad, Irene; Mandingorra, Jesús; Robles, Montserrat

2007-12-01

115

Non-invasive light-weight integration engine for building EHR from autonomous distributed systems.  

PubMed

Pangea-LE is a message oriented light-weight integration engine, allowing concurrent access to clinical information from disperse and heterogeneous data sources. The engine extracts the information and serves it to the requester client applications in a flexible XML format. This XML response message can be formatted on demand by the appropriate XSL (Extensible Stylesheet Language) transformation in order to fit client application needs. In this article we present a real use case sample where Pangea-LE collects and generates "on the fly" a structured view of all the patient clinical information available in a healthcare organisation. This information is presented to healthcare professionals in an EHR (Electronic Health Record) viewer Web application with patient search and EHR browsing capabilities. Implantation in a real environment has been a notable success due to the non-invasive method which extremely respects the existing information systems. PMID:17108522

Crespo Molina, Pere; Angulo Fernández, Carlos; Maldonado Segura, José A; Moner Cano, David; Robles Viejo, Montserrat

2006-01-01

116

Use of Headings and Classifications by Physicians in Medical Narratives of EHRs  

PubMed Central

Objective The purpose of this study was to describe and evaluate patient care documentation by hospital physicians in EHRs and especially the use of national headings and classifications in these documentations Material and Methods The initial material consisted of a random sample of 3,481 medical narratives documented in EHRs during the period 2004-2005 in one department of a Finnish central hospital. The final material comprised a subset of 1,974 medical records with a focus on consultation requests and consultation responses by two specialist groups from 871 patients. This electronic documentation was analyzed using deductive content analyses and descriptive statistics. Results The physicians documented patient care in EHRs principally as narrative text. The medical narratives recorded by specialists were structured with headings in less than half of the patient cases. Consultation responses in general were more often structured with headings than consultation requests. The use of classifications was otherwise insignificant, but diagnoses were documented as ICD 10 codes in over 50% of consultation responses by both medical specialties. Conclusion There is an obvious need to improve the structuring of narrative text with national headings and classifications. According to the findings of this study, reason for care, patient history, health status, follow-up care plan and diagnosis are meaningful headings in physicians’ documentation. The existing list of headings needs to be analyzed within a consistent unified terminology system as a basis for further development. Adhering to headings and classifications in EHR documentation enables patient data to be shared and aggregated. The secondary use of data is expected to improve care management and quality of care.

Hayrinen, K.; Harno, K.; Nykanen, P.

2011-01-01

117

Use of Guidelines and Decision Support Systems within EHR Applications in Family Practice - Croatian Experience  

Microsoft Academic Search

\\u000a The aim of this survey was to evaluate the state of implementation of guidelines and decision support systems within the EHR\\u000a applications in Croatian family practice. The survey was conducted using electronic and paper based questionnaires which were\\u000a formed in accordance to European best practice. Obtained survey results are showing number of improvement areas, which relate\\u000a to both existing applications,

D. Kralj; S. Tonkovi?; M. Kon?ar

118

Morphological variability of Aulacoseira granulata (Ehr.) Simonsen (Bacillariophyceae) in the Lower Paraná River (Argentina)  

Microsoft Academic Search

In this paper we consider the morphological variation within a natural population of Aulacoseira granulata (Ehr.) Simonsen in relation to environmental factors. This species was dominant in the phytoplankton of the Lower Paran?\\u000a River (Argentina) and exhibited seasonal fluctuations of cell dimensions. The mean cell diameter was directly correlated with\\u000a the river water level and inversely with pH and nitrate

Inés O'Farrell; Guillermo Tell; Alejandra Podlejski

2001-01-01

119

Monte Carlo portal dosimetry  

SciTech Connect

This project developed a solution for verifying external photon beam radiotherapy. The solution is based on a calibration chain for deriving portal dose maps from acquired portal images, and a calculation framework for predicting portal dose maps. Quantitative comparison between acquired and predicted portal dose maps accomplishes both geometric (patient positioning with respect to the beam) and dosimetric (two-dimensional fluence distribution of the beam) verifications. A disagreement would indicate that beam delivery had not been according to plan. The solution addresses the clinical need for verifying radiotherapy both pretreatment (without the patient in the beam) and on treatment (with the patient in the beam). Medical linear accelerators mounted with electronic portal imaging devices (EPIDs) were used to acquire portal images. Two types of EPIDs were investigated: the amorphous silicon (a-Si) and the scanning liquid ion chamber (SLIC). The EGSnrc family of Monte Carlo codes were used to predict portal dose maps by computer simulation of radiation transport in the beam-phantom-EPID configuration. Monte Carlo simulations have been implemented on several levels of high throughput computing (HTC), including the grid, to reduce computation time. The solution has been tested across the entire clinical range of gantry angle, beam size (5 cmx5 cm to 20 cmx20 cm), and beam-patient and patient-EPID separations (4 to 38 cm). In these tests of known beam-phantom-EPID configurations, agreement between acquired and predicted portal dose profiles was consistently within 2% of the central axis value. This Monte Carlo portal dosimetry solution therefore achieved combined versatility, accuracy, and speed not readily achievable by other techniques.

Chin, P.W. [Department of Medical Physics, Velindre Cancer Centre, Velindre Road, Cardiff CF14 2TL (United Kingdom)]. E-mail: mary.chin@physics.org

2005-10-15

120

Optimization of an EHR Mobile Application Using the UFuRT Conceptual Framework  

PubMed Central

Drchrono is an Electronic Healthcare Record (EHR) application designed specifically for the iPad. Described as portable, efficient and accessible anywhere, drchrono has several features that might be attractive to health care providers. However, EHRs have to conform to certain Federal Healthcare Information Technology Guidelines, which are evaluated in a series of 12 test procedures, defined by the Office of the National Coordinator for Health Information Technology (ONC). In this study, we evaluated Test Procedure for §170.302 (c) Maintain up-to-date problem list, in drchrono. The methodology for our evaluation was contained within Zhang’s unified framework for usability, using UFuRT, i.e. user, functional, representation and task analyses. Based upon the analysis, using Adobe Flex, we then designed a prototype that corrected or improved on perceived weaknesses in the functionality served by the test procedure. We applied the test procedure taxonomy to a prototypic modification of drchrono, and then repeated the UFuRT usability analysis. We also used a 14-item heuristic evaluation by each member of our informatics team. Our findings support a conclusion that UFuRT is a valuable tool to evaluate EHR usability and that an “up-to-date problem” list may be customized, according to healthcare provider preference.

Amith, Muhammad; Loubser, Paul G.; Chapman, John; Zoker, Kaafoe C.; Rabelo Ferreira, Fred E. R.

2012-01-01

121

The Cosmos Portal and the IYA2009 Project  

NASA Astrophysics Data System (ADS)

In 2007 the non-profit Digital Universe Foundation (DUF) launched the Earth Portal as a comprehensive resource for timely, objective, science-based information about the environment. There are currently over 1000 scholars from 60 countries engaged in this rapidly growing web-based collaboration. The Cosmos Portal is the second major DUF initiative (digitaluniverse.net/cosmos). In support of the IYA2009 effort, the Cosmos Portal is recruiting astronomy professionals to make use of easy online tools to publish articles, blogs, news items, image galleries, class notes, lectures, powerpoint presentations, links to other high quality websites or other educational material. In parallel we intend to bring hundreds of amateur astronomy organizations and thousands of amateur astronomers and telescope makers together in a community of portals (digitaluniverse.net/cosmoscommunity). This will allow vibrant online collaboration and information sharing. We encourage you to start a portal on your favorite topic or join an existing topic as a contributor.

Haisch, Bernard M.; Sims, M.; Lindblom, J.

2009-01-01

122

Reagents Data Portal Antibodies  

Cancer.gov

NCI announces the release of monoclonal antipeptide antibodies from rabbit for distribution on the antibody portal. There are 60 recently added monoclonal antibodies, with 56 generated from mouse and 4 generated from rabbit.

123

Space Development Grid Portal  

NASA Technical Reports Server (NTRS)

This viewgraph presentation provides information on the development of a portal to provide secure and distributed grid computing for Payload Operations Integrated Center and Mission Control Center ground services.

Vaziri, Arsi

2004-01-01

124

Climate change portal established  

NASA Astrophysics Data System (ADS)

The World Bank has developed a Climate Change Knowledge Portal as a kind of “onestop shop” for climate-related information, data, and tools. The portal provides access to global, regional, and national data and reports with an aim to providing a resource for learning about climate information and increasing knowledge on climate change—related actions. For more information, see http://sdwebx.worldbank.org/climateportal/.

Showstack, Randy

2011-12-01

125

Enterprise information portals  

Microsoft Academic Search

Information is now coming centre stage in companies anxious to maintain their competitive advantage in the dot.com economy as electronic business-to-business exchanges rapidly emerge. The technical issues of being able to search across a wide range of different database and document types are now being solved through enterprise information portal applications (EIP), often referred to as corporate portals. These provide

Martin White

2000-01-01

126

Humoral Mechanism in Pathogenesis of Portal Hypertension.  

National Technical Information Service (NTIS)

The pathogenesis of portal hypertension is not entirely clear. Mechanical obstruction to the portal vascular beds and increase of portal blood flow have been considered important factors implicated in the elevation of portal pressure. Previously the autho...

C. Huang R. Du X. Leng

1982-01-01

127

Elevation, west portal. Sign on portal reads Watson Mill Bridge, ...  

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

Elevation, west portal. Sign on portal reads Watson Mill Bridge, est. 1885. - Watson Mill Bridge, Spanning South Fork Broad River, Watson Mill Road, Watson Mill Bridge State Park, Comer, Madison County, GA

128

Perspective looking due north, south portal. Note how the portal ...  

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

Perspective looking due north, south portal. Note how the portal angles out over the approach. - Swann Bridge, Spanning Locust Fork of Black Warrior River, Swann Bridge Road, Cleveland, Blount County, AL

129

1. VIEW NORTH OF GILBERT BRIDGE, PORTAL AND PORTAL CONNECTIONS ...  

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

1. VIEW NORTH OF GILBERT BRIDGE, PORTAL AND PORTAL CONNECTIONS AND BRACING, TRAFFIC DECK - Gilbert Bridge, U.S. Route 52, spanning Guyandotte River near confluence of Gilbert Creek, Gilbert, Mingo County, WV

130

Radioisotopic flow scanning for portal blood flow and portal hypertension  

SciTech Connect

The use of a simple, noninvasive, isotope scanning technique for the determination of relative portal blood flow and detection of portal hypertension is described. Using this technique the presence of portal hypertension was demonstrated in seven of nine patients known to have elevated portal venous pressure. By contrast, esophageal varices were demonstrated in only five of these patients, illustrating the potential value of the method. Furthermore, this technique has been adapted to the study of portal blood flow in patients with myeloproliferative disorders with splenomegaly but without disturbances in hepatic architecture. Results demonstrate that the high relative splenic flow resulting from the presence of splenomegaly may in turn be associated with elevated relative portal blood flow and portal hypertension. The theoretic reasons for the development of flow-related portal hypertension and its relationship to splenic blood flow are discussed.

Hesdorffer, C.S.; Bezwoda, W.R.; Danilewitz, M.D.; Esser, J.D.; Tobias, M.

1987-08-01

131

Perspective view of south portal. Note how portal angles about ...  

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

Perspective view of south portal. Note how portal angles about 5' forward over the approach. - Red Oak Creek Bridge, Spanning (Big) Red Oak Creek, Huel Brown Road (Covered Bridge Road), Woodbury, Meriwether County, GA

132

Portal Cavernoma during Pregnancy  

PubMed Central

Portal vein thrombosis (PVT) is characterized by the obstruction of the portal venous system. The venous obstruction can be partial or complete and it is caused by thrombogenic conditions (acquired or hereditary) or nonthrombotic factors. The acquired conditions include abdominal inflammation, infections, surgery, myeloproliferative disorders, obesity, oral contraceptive intake, pregnancy, and postpartum period. Occasionally, it is not possible to recognize any overt cause of PVT. During pregnancy there is an increased venous thromboembolism risk mainly in the systemic venous system and the PVT can occur, but there are no data about its exact prevalence, etiology, and outcome. The portal cavernoma is the cavernomatous transformation of the portal vein. It is a consequence of chronic PVT and occurs when myriads of collateral channels develop to bypass the occlusion. The clinical presentation includes hematemesis due to variceal bleeding, ascites or anaemia, and splenomegaly. The cavernous transformation of the portal vein is easily diagnosed by sonography. We report our case of a 32-year-old, gravida 3 para 2, pregnant woman admitted to our hospital at 13 weeks and 1 day of gestation, clinically asymptomatic. Laboratory test, ultrasound, and endoscopic evaluation were negative. After a detailed counseling, the patient decided on termination of pregnancy at 15 weeks and 1 day of gestation.

Ferrara, Cinzia; Sansone, Anna; Bifulco, Giuseppe; Nappi, Carmine; Di Carlo, Costantino

2013-01-01

133

Gastro-portal shunt for portal hypertension in children  

Microsoft Academic Search

Purpose Extra-hepatic portal venous obstruction (EHPVO) is the most common cause of portal hypertension in children. The Rex shunt has been employed successfully to treat patients with extra-hepatic portal hypertension. In the conventional Rex shunt, the internal jugular vein is used as a venous graft. Inevitably, such a procedure requires neck exploration and sacrifice of internal jugular vein. The authors

Jin-Shan Zhang; Long Li; Shu-Li Liu; Wei Cheng; Mei Diao; Wen-Ying Hou; Jun Zhang; Sheng-Li Li; Yao Liu; Hai-Bin Wang; An-Xiao Ming

134

Mobile portals: An extension to corporate knowledge portals  

Microsoft Academic Search

Corporate knowledge portals are used by organizations for sharing, storing and retrieving knowledge by all its customers, employees, vendors and partners. Corporate knowledge portals allow organizations to become more competitive and innovative. A knowledge portal are constructed through the use of web and internet technology and are accessed to add, retrieve or update knowledge and is done through a web

A Samer M. Barakat

2011-01-01

135

At the crossroads: NRTRC white paper examines trends driving the convergence of telehealth, EHRs and HIE.  

PubMed

From the American Recovery and Reinvestment Act (ARRA) and the newly passed healthcare reform legislation to emerging reimbursement models and shifting consumer health trends, a confluence of events are driving radical change in the nation's healthcare system and bringing about the convergence of telehealth, electronic health records (EHRs) and health information exchange (HIE). That is the focus of "The Crossroads of Telehealth, Electronic Health Records & Health Information Exchange: Planning for Rural Communities," a new white paper from the Northwest Regional Telehealth Resource Center (NRTRC). "Accelerating adoption and utilization of telehealth technologies, telemedicine in particular, will be critical to a successful stakeholder response to the disruptive changes that are underway in healthcare," said NRTRC Executive Director Christina B. Thielst, FACHE. "By leveraging telehealth networks and their existing infrastructures, Regional Extension Centers, HIEs and other data-sharing initiatives will be better-positioned to fulfill their commitments to the healthcare delivery system of the future--a system in which even the most rural and remote populations have timely access to care and their health records." The white paper explores emerging trends and recent disruptors impacting the healthcare delivery system and examines the opportunities they present for the advancement of telecommunications-based health solutions and the broadband infrastructure available through telehealth networks. It also takes an in-depth look at the various uses of telehealth and the most common delivery models of telemedicine, as well as the role of the telehealth network and Telehealth Resource Centers (TRCs) in expanding the reach of these vital initiatives. Finally, the white paper highlights the evolution of the REACH Montana Telehealth Network from facilitating teleradiology at three remote sites into a consortium of healthcare providers at 18 sites linked by high-bandwidth telecommunications in the north central region of Montana. REACH, which considers HIE to be a primary function, is currently working to leverage its existing T1 infrastructure to create the "railroad tracks" that will carry medical data and information within the region and beyond. "This white paper is an excellent analysis of the intersection of telehealth and health information technology, and the opportunities and challenges this electronic technology will bring to rural America," said Terry J. Hill, Executive Director of the Rural Health Resource Center, the Duluth, Minn.-based national knowledge center for rural hospitals providing technical assistance, information, education and other resources to rural health care providers and their communities. Adds Thielst: "Crossroads is a valuable planning tool for any healthcare stakeholder, but it is especially important for rural communities wanting to address health information exchange. It is just one of many resources available through the NRTRC to help advance the involvement of teleheatlh networks in HIE initiatives and to help transform the telehealth infrastructure into the 'superhighway' across which remote and rural areas will finally be able to participate in the widespread exchange of electronic health information." One of five TRCs in the nation, the NRTRC leverages the collective expertise of 33 telehealth networks across Alaska, Hawaii, Idaho, Montana, Oregon, Utah, Washington, Wyoming, and United States-affiliated Pacific Islands to share information and resources which assist in the development of new telehealth programs. The NRTRC is focused on further growth and new provider adoption of telehealth technologies to enhance delivery systems and reduce organizational and patient costs. PMID:21391447

Thielst, Christina Beach

2010-01-01

136

Facilitating the openEHR approach - organizational structures for defining high-quality archetypes.  

PubMed

Using openEHR archetypes to establish an electronic patient record promises rapid development and system interoperability by using or adopting existing archetypes. However, internationally accepted, high quality archetypes which enable a comprehensive semantic interoperability require adequate development and maintenance processes. Therefore, structures have to be created involving different health professions. In the following we present a model which facilitates and governs distributed but cooperative development and adoption of archetypes by different professionals including peer reviews. Our model consists of a hierarchical structure of professional committees and descriptions of the archetype development process considering these different committees. PMID:18487770

Kohl, Christian Dominik; Garde, Sebastian; Knaup, Petra

2008-01-01

137

Model-based design and implementation of secure, interoperable EHR systems.  

PubMed

For designing and implementing secure, interoperable, portable, and future-proof EHR systems, a comprehensive and standardized methodology supported by appropriate tools has to be established and applied. Based on the component paradigm, the ISO Reference Model - Open Distributed Processing has been used to describe the different views on information systems deploying the appropriate vocabulary for each single model view. The concepts considered rank from legal, organizational, and functional up to technical aspects of systems. The harmonization of vocabularies can be performed by meta-languages. The approach has been demonstrated for the model-based design, implementation and maintenance of a clinical study distributed over the Internet. PMID:14728141

Blobel, Bernd; Stassinopoulos, George; Pharow, Peter

2003-01-01

138

Target detection portal  

SciTech Connect

A portal apparatus for screening persons or objects for the presence of trace amounts of target substances such as explosives, narcotics, radioactive materials, and certain chemical materials. The portal apparatus can have a one-sided exhaust for an exhaust stream, an interior wall configuration with a concave-shape across a horizontal cross-section for each of two facing sides to result in improved airflow and reduced washout relative to a configuration with substantially flat parallel sides; air curtains to reduce washout; ionizing sprays to collect particles bound by static forces, as well as gas jet nozzles to dislodge particles bound by adhesion to the screened person or object. The portal apparatus can be included in a detection system with a preconcentrator and a detector.

Linker, Kevin L. (Albuquerque, NM); Brusseau, Charles A. (Tijeras, NM)

2002-01-01

139

An Electronic Health Record - Public Health (EHR-PH) System Prototype for Interoperability in 21st Century Healthcare Systems  

PubMed Central

Information exchange, enabled by computable interoperability, is the key to many of the initiatives underway including the development of Regional Health Information Exchanges, Regional Health Information Organizations, and the National Health Information Network. These initiatives must include public health as a full partner in the emerging transformation of our nation’s healthcare system through the adoption and use of information technology. An electronic health record - public health (EHR-PH) system prototype was developed to demonstrate the feasibility of electronic data transfer from a health care provider, i.e. hospital or ambulatory care settings, to multiple customized public health systems which include a Newborn Metabolic Screening Registry, a Newborn Hearing Screening Registry, an Immunization Registry and a Communicable Disease Registry, using HL7 messaging standards. Our EHR-PH system prototype can be considered a distributed EHR-based RHIE/RHIO model - a principal element for a potential technical architecture for a NHIN.

Orlova, Anna O.; Dunnagan, Mark; Finitzo, Terese; Higgins, Michael; Watkins, Todd; Tien, Allen; Beales, Steven

2005-01-01

140

Mashup-Aware Corporate Portals  

Microsoft Academic Search

\\u000a Unlike other Web applications, corporate portals reckon to provide an integration space for corporate services. Mashups contribute\\u000a to this goal by bringing a relevant customization technique whereby portal users can supplement portal services with their\\u000a own data needs. The challenge is to find a balance between portal reliability and mashup freedom. Our approach is to split\\u000a responsibilities between service providers

Sandy Pérez; Oscar Díaz

2010-01-01

141

Ten Keys to the Portal  

ERIC Educational Resources Information Center

Successful web portals help users stay informed, in touch, and up to speed. They are also a telling window into the efficiency of one's institution. To develop a cutting-edge portal takes planning, communication, and research. In this article, the author presents and discusses 10 keys to portal success: (1) make critical info visible; (2) make the…

Schaffhauser, Dian

2011-01-01

142

Selecting and Implementing Campus Portals.  

ERIC Educational Resources Information Center

Offers points to consider when deciding whether to begin a full-scale campus portal project. Discusses approaches for creating campus portals; implementation strategies; barriers to implementation; and the potential ability of portals to extend the academic experience beyond the classroom to create 21st century learning communities. (AEF)

Eisler, David L.

2001-01-01

143

A Librarian's Perspective on Portals.  

ERIC Educational Resources Information Center

Explains what Web portals are and discusses the benefits of a strategic alliance in portal building among campus information technology, libraries, and other campus groups. Suggests that by using robust channel capabilities, an enterprise portal can provide content from various parts of the university and promote resource discovery. (EV)

Little, John R.

2001-01-01

144

IBM Developers Portal: XML Zone  

NSDL National Science Digital Library

Within the IBM Developers Portal, XML Zone is probably the most complete and useful area to visit. Intended to be the premier destination for developer resources of any kind, XML Zone contains a good selection of pointers to XML tools and source code, annotated pointers to educational and reference resources, an XML email newsletter, and more. The site is organized in an easy-to-use fashion; users can conduct searches on an XML-specific search engine. XML Zone appears to be one of the more well-constructed XML web resources; with the resources of IBM behind it, XML Zone is sure to grow and to provide an important service to XML developers for a long time to come.

145

The Archetype-enabled EHR system ZK-ARCHE - integrating the ISO/EN 13606 standard and IHE XDS profile.  

PubMed

The EHR system ZK-ARCHE automatically generates forms from ISO/EN 13606 archetypes. For this purpose the archetypes are augmented with components of the reference model to achieve so-called "comprehensive archetypes". Data collected via the forms are stored in a list which associates each value with the path of the corresponding comprehensive archetype node coded as W3C XPath. From this list archetype-conformant EHR extracts can be created. The system is embedded with the IHE XDS profile to allow direct data exchange in an environment of distributed data storage. PMID:21893857

Kohler, Michael; Rinner, Christoph; Hübner-Bloder, Gudrun; Saboor, Samrend; Ammenwerth, Elske; Duftschmid, Georg

2011-01-01

146

Analysis of cloud-based solutions on EHRs systems in different scenarios.  

PubMed

Nowadays with the growing of the wireless connections people can access all the resources hosted in the Cloud almost everywhere. In this context, organisms can take advantage of this fact, in terms of e-Health, deploying Cloud-based solutions on e-Health services. In this paper two Cloud-based solutions for different scenarios of Electronic Health Records (EHRs) management system are proposed. We have researched articles published between the years 2005 and 2011 about the implementation of e-Health services based on the Cloud in Medline. In order to analyze the best scenario for the deployment of Cloud Computing two solutions for a large Hospital and a network of Primary Care Health centers have been studied. Economic estimation of the cost of the implementation for both scenarios has been done via the Amazon calculator tool. As a result of this analysis two solutions are suggested depending on the scenario: To deploy a Cloud solution for a large Hospital a typical Cloud solution in which are hired just the needed services has been assumed. On the other hand to work with several Primary Care Centers it's suggested the implementation of a network, which interconnects these centers with just one Cloud environment. Finally it's considered the fact of deploying a hybrid solution: in which EHRs with images will be hosted in the Hospital or Primary Care Centers and the rest of them will be migrated to the Cloud. PMID:22492177

Fernández-Cardeñosa, Gonzalo; de la Torre-Díez, Isabel; López-Coronado, Miguel; Rodrigues, Joel J P C

2012-12-01

147

USNO Eclipse Portal  

NSDL National Science Digital Library

The United States Naval Observatory (USNO) Eclipse Portal provides information on all solar and lunar eclipses from 1501 through 2100. Users can enter a year in the search box and access information on all eclipses for that year, including global visibility maps, animations, and local circumstances for a selection of locations.

148

Rapid EHR Development and Implementation Using Web and Cloud-Based Architecture in a Large Home Health and Hospice Organization.  

PubMed

Health care organizations have long been limited to a small number of major vendors in their selection of an electronic health record (EHR) system in the national and international marketplace. These major EHR vendors have in common base systems that are decades old, are built in antiquated programming languages, use outdated server architecture, and are based on inflexible data models [1,2]. The option to upgrade their technology to keep pace with the power of new web-based architecture, programming tools and cloud servers is not easily undertaken due to large client bases, development costs and risk [3]. This paper presents the decade-long efforts of a large national provider of home health and hospice care to select an EHR product, failing that to build their own and failing that initiative to go back into the market in 2012. The decade time delay had allowed new technologies and more nimble vendors to enter the market. Partnering with a new start-up company doing web and cloud based architecture for the home health and hospice market, made it possible to build, test and implement an operational and point of care system in 264 home health locations across 40 states and three time zones in the United States. This option of "starting over" with the new web and cloud technologies may be posing a next generation of new EHR vendors that retells the Blackberry replacement by iPhone story in healthcare. PMID:24943570

Weaver, Charlotte A; Teenier, Pamela

2014-01-01

149

CORPORATE PORTAL - MANAGEMENT EFFORT INTEGRATION FACTOR  

Microsoft Academic Search

Corporate portals have a wide variety of application fields which cover different business activities such as production, sales, procurement, personnel, knowledge management, learning, etc. Corporate portal can be classified according to different dimensions, business model or target group, application field, focus, and access point. Corporate portal's can be classified as Business to Business Portals (B2B), Business to Consumer Portals (B2C)

STAVLJANIN Velimir

150

The Portal Project  

Microsoft Academic Search

Palladia, Inc. is a not-for-profit, multi-service agency, located in New York City, serving primarily African-American and Latino communities. Palladia's Portal Project, in collaboration with the evaluation team from Hunter College School of Social Work (HCSSW), participated in the national Women, Co-Occurring Disorders and Violence study. We studied 270 women with co-occurring issues of alcohol and other drug (AOD) problems and

Sharon Cadiz; Andrea Savage; Diane Bonavota; James Hollywood; Erica Butters; Michelle Neary; Laura Quiros

2005-01-01

151

Becoming a Learning Organization: New Directions in Science Education Research at the National Science Foundation  

NASA Astrophysics Data System (ADS)

The Education and Human Resources (EHR) Directorate at the National Science Foundation has been examining its role in supporting the development of new approaches to science, technology, engineering and mathematics (STEM) education. This article explores what it means to be scientifically literate, what it takes to become a learning organization, how the EHR Directorate is working towards becoming such an organization through rigorous self-study, and how EHR can best manage its large portfolio of awards that support investigations in STEM education to enhance their collective value to researchers, policymakers and educators. Several elements of the self-study process are described, and the implications for the Directorate as well as for the field of researchers in science education are explored.

Ramaley, Judith A.; Olds, Barbara M.; Earle, Janice

2005-06-01

152

8. Detail, skewed portal bracing at west portal, also showing ...  

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

8. Detail, skewed portal bracing at west portal, also showing boxed endposts, latticed upper transverse and diagonal sway bracing, laced vertical members, view to northeast, 210mm lens. - Southern Pacific Railroad Shasta Route, Bridge No. 301.85, Milepost 301.85, Pollard Flat, Shasta County, CA

153

Portal interventions in liver transplant recipients.  

PubMed

Portal vein interventions in liver transplant recipients represent a group of interventions in the management of several disease entities including portal vein stenosis, portal vein thrombosis, and recurrent liver cirrhosis with portal hypertension with and without gastric varices. The procedures performed in these patient populations include portal vein angioplasty with or without stent placement for portal vein stenosis, portal vein thrombolysis with or without stent placement for portal vein thrombosis, transjugular intrahepatic portosystemic shunts or splenic embolization for cirrhosis, and balloon-occluded retrograde transvenous obliteration for gastric varices. This article discusses these disease entities and the minimal invasive procedures used in their management. PMID:23729979

Saad, Wael E A

2012-06-01

154

Does a Personalized Health Portal for Diabetes Retinal Imaging Positively Affect Motivational Readiness to Change.  

National Technical Information Service (NTIS)

The transtheoretical model (TTM) of behavior change has been used successfully to describe explain and predict clinical outcomes in patients with type 2 diabetes (T2D) exposed to various educational interventions. The personalized health portal allows pat...

D. B. Peters K. Connolly

2010-01-01

155

Management of portal hypertension  

PubMed Central

Treatment of portal hypertension is evolving based on randomised controlled trials. In acute variceal bleeding, prophylactic antibiotics are mandatory, reducing mortality as well as preventing infections. Terlipressin or somatostatin combined with endoscopic ligation or sclerotherapy is the best strategy for control of bleeding but there is no added effect of vasoactive drugs on mortality. Non-selective ß-blockers are the first choice therapy for both secondary and primary prevention; if contraindications or intolerance to ß-blockers are present then band ligation should be used. Novel therapies target the increased intrahepatic resistance caused by microcirculatory intrahepatic deficiency of nitric oxide and contraction of activated intrahepatic stellate cells.

Samonakis, D; Triantos, C; Thalheimer, U; Patch, D; Burroughs, A

2004-01-01

156

GEO Data Portal  

NSDL National Science Digital Library

The GEO Data Portal is depicted as the authoritative source for data sets used by the United Nations Environment Network and its partners. The online database contains over 400 different variables, such as national, subregional, regional and global statistics, or as geospatial data sets. Users can search the database using keywords or can browse by region or thematic categories, including Climate Change, Freshwater, Mountains, and Socioeconomic information. Users have free access to view and create their own maps, graphs and data tables and can also download data in different formats free of charge. This is one resource that every environmental scientist, and those working in related fields, should be aware of and utilize.

157

All Roads Lead to Portal  

ERIC Educational Resources Information Center

Portals are taking off on campuses nationwide. According to "Campus Computing 2006," the Campus Computing Project's survey of 540 two- and four-year public and private colleges and universities across the US, portal deployment for four-year public residential universities jumped from 28 to 74 percent of responding institutions between the…

Heid, Susan D.

2007-01-01

158

Of Portals, Policies, and Poets  

ERIC Educational Resources Information Center

Universities are drawn to portals as an effective way of organizing and delivering campus services and information. In a university environment, where the desire for local autonomy and the impetus for centralization are in constant tension, a portal seems especially appealing because it allows local solutions through a shared medium. But the fact…

Bunt, Rick; Pennock, Lea

2006-01-01

159

Corporate portal as security backbone  

Microsoft Academic Search

Network topologies found in audits and reviews are not capable to fulfill the needs of security and flexibility. Specialized networks and protection systems increase the complexity and reduce the overall security. Central corporate portals can be used as IT-security backbones. Constructing the corporate portals with reverse-proxy technology and with internal firewalls will secure, that no connection to sensible data or

U. Maurer

2005-01-01

160

Non-cirrhotic portal hypertension.  

PubMed

Non-cirrhotic portal hypertension (NCPH) encompasses a wide range of disorders, primarily vascular in origin, presenting with portal hypertension (PHT), but with preserved liver synthetic functions and near normal hepatic venous pressure gradient (HVPG). Non-cirrhotic portal fibrosis/Idiopathic PHT (NCPF/IPH) and extrahepatic portal venous obstruction (EHPVO) are two prototype disorders in the category. Etiopathogenesis in both of them centers on infections and prothrombotic states. Presentation and management strategies focus on repeated well tolerated episodes of variceal bleed and moderate to massive splenomegaly and other features of PHT. While the long-term prognosis is generally good in NCPF, portal biliopathy and parenchymal extinction after prolonged PHT makes outcome somewhat less favorable in EHPVO. While hepatic schistosomiasis, congenital hepatic fibrosis and nodular regenerative hyperplasia have their distinctive features, they often present with NCPH. PMID:24679506

Sarin, Shiv K; Khanna, Rajeev

2014-05-01

161

Building a Stückelberg portal  

NASA Astrophysics Data System (ADS)

We construct explicit string theory models realizing the recently proposed "Stückelberg Portal" scenario, a framework for building Z' mediation models without the need to introduce unwanted exotic matter charged under the Standard Model. This scenario can be viewed purely field-theoretically, although it is particularly well motivated from string theory. By analyzing carefully the Stückelberg couplings between the Abelian gauge bosons and the RR axions, we construct the first global intersecting brane models which extend the Standard Model with a genuine hidden sector, to which it is nonetheless connected via U(1) mass mixings. Utilizing the explicit models we construct, we discuss some broad phenomenological properties and experimental implications of this scenario such as Z - Z' mixings, dark matter stability and relic density, and supersymmetry mediation. With an appropriate confining hidden sector, our setup also provides a minimal realization of the hidden valley scenario. We further explore the possibility of obtaining small Z' masses from a large ensemble of U(1) bosons. Related to the Stückelberg portal are two mechanisms that connect the visible and the hidden sectors, namely mediation by non-perturbative operators and the hidden photon scenario, on which we briefly comment.

Feng, Wan-Zhe; Shiu, Gary; Soler, Pablo; Ye, Fang

2014-05-01

162

Segmental portal hypertension.  

PubMed Central

Isolated obstruction of the splenic vein leads to segmental portal hypertension, which is a rare form of extrahepatic portal hypertension, but it is important to diagnose, since it can be cured by splenectomy. In a review of the English literature, 209 patients with isolated splenic vein obstruction were found. Pancreatitis caused 65% of the cases and pancreatic neoplasms 18%, whereas the rest was caused by various other diseases. Seventy-two per cent of the patients bled from gastroesophageal varices, and most often the bleeding came from isolated gastric varices. The spleen was enlarged in 71% of the patients. A correct diagnosis in connection with the first episode of bleeding was made in only 49%; 22% were operated on because of gastrointestinal bleeding, but the cause of bleeding was not found. The diagnosis should be suspected in patients with gastroesophageal varices, but without signs of a liver disease, especially if isolated gastric varices are found. The diagnosis is confirmed by portography. Images FIG. 1. FIG. 2.

Madsen, M S; Petersen, T H; Sommer, H

1986-01-01

163

Grid-based implementation of XDS-I as part of image-enabled EHR for regional healthcare in Shanghai  

Microsoft Academic Search

Purpose  Due to the rapid growth of Shanghai city to 20 million residents, the balance between healthcare supply and demand has become\\u000a an important issue. The local government hopes to ameliorate this problem by developing an image-enabled electronic healthcare\\u000a record (EHR) sharing mechanism between certain hospitals. This system is designed to enable healthcare collaboration and reduce\\u000a healthcare costs by allowing review

Jianguo Zhang; Kai Zhang; Yuanyuan Yang; Jianyong Sun; Tonghui Ling; Guangrong Wang; Yun Ling; Derong Peng

2011-01-01

164

A shared e-decision support portal for pediatric asthma.  

PubMed

We describe the user-centered development of an electronic medical record-based portal, "MyAsthma," designed to facilitate shared decision making in pediatric asthma. Interviews and focus groups with 7 parents of children with asthma and 51 clinical team members elicited 2 overarching requirements: that the portal should support sustained communication and ensure patient safety. Parents and clinicians prioritized features including collecting parent and child concerns and goals; symptom, side effect, and medication adherence tracking with decision support; and accessible educational materials. Iterative usability testing refined the system. MyAsthma provides a model for using technology to foster shared decision making in ambulatory care settings. PMID:24594560

Fiks, Alexander G; Mayne, Stephanie; Karavite, Dean J; DeBartolo, Elena; Grundmeier, Robert W

2014-01-01

165

Portals: Foundation for an Online Campus.  

ERIC Educational Resources Information Center

A portal is the digital infrastructure for an online campus. Community portals, online service portals, and enterprise-wide platforms represent the three basic portal variations available for online campuses. They are differentiated by the offices represented, the campus audience served, and benefits provided to the school as a whole. (PGS)

Gilson, Darin

2000-01-01

166

Hepatopulmonary Syndrome in Noncirrhotic Portal Hypertensive Patients  

Microsoft Academic Search

Hepatopulmonary syndrome has yet not been sufficiently assessed in noncirrhotic portal hypertension. The prevalence of hepatopulmonary syndrome was determined in 31 consecutive patients with noncirrhotic portal hypertension (19 idiopathic portal hypertension, 7 portal vein thrombosis, 5 congenital hepatic fibrosis) and 46 patients with liver cirrhosis. Contrast echocardiography was carried out in all patients. Macroaggregated albumin lung perfusion scans were performed

Sabahattin Kaymakoglu; Tevfik Kahraman; Hasan Kudat; Kadir Demir; Yilmaz Cakaloglu; Isik Adalet; Dinc Dincer; Fatih Besisik; Güngör Boztas; Ahmet Bilge Sözen; Zeynel Mungan; Atilla Okten

2003-01-01

167

Clinics in diagnostic imaging (128). Portal pyaemia.  

PubMed

A 66-year-old man presented with epigastric pain. Computed tomography (CT) of the abdomen showed portal venous gas with partial thrombosis of the portal veins, consistent with portal pyaemia. CT also showed nonspecific peripancreatic fat stranding. The patient was treated conservatively but did not improve, necessitating a laparotomy that revealed ischaemic colitis and bowel necrosis. He underwent a right hemicolectomy and showed clinical improvement. Portal pyaemia is a combination of infection and thrombosis within the portal veins. The presence of gas in the portal vein is a known feature in portal pyaemia. We showed radiological examples of hepatic and portal venous gas in several patients who presented to our institution, with a brief discussion of their radiological findings, causes, management and outcome. The mortality rate of patients with portal venous gas depends on the underlying cause. The high mortality rate of patients with portal venous gas due to bowel necrosis or ischaemia may necessitate emergent surgical intervention. PMID:19907895

Chia, E M Y; Teo, L L S; Venkatesh, S K

2009-10-01

168

C3-5: Patient Use of a Secure Web Portal and LDL in Patients with Diabetes  

PubMed Central

Background/Aims Patient use of web portals to interact with their healthcare delivery system and healthcare providers could improve the quality and safety of care. Among patients with diabetes in a large integrated delivery system (IDS), we examined the association between patient use of the web portals and cholesterol test results. Methods The health system implemented a web-based tool for all patients who registered to use the website in November 2005, allowing members to securely access a personal health record, as well as e-mail their physicians, and view their lab results. In this study, we defined patients as web-portal users when patients emailed their physicians or viewed lab results at the first time. We examined the association of patient web-portal use and low-density lipoprotein cholesterol (LDL) level using linear regression with fixed effect at patient level, adjusting for medical center electronic health record (EHR) implementation, quarter for seasonality, and year for temporal trend. Results The 169,711 patients in the IDS diabetes registry at the start of 2004 were followed through 2009. The number of patients who had used patient web-portal increased dramatically from 16% in 2006 to 35% in 2009. During 2004–2009, a total number of 1,070,856 LDL tests were performed among the study subjects and 18% of the tests were done after patients used the web-portal. Overall patient web-portal use was associated with reduction of LDL value by 0.81 mg/dL (95% CI: 0.64–0.97). Further examination among patients stratified by their baseline LDL (last value in 2003) showed that the largest reduction in LDL was found among those with worst control: on average, LDL level dropped by 0.36 mg/dL (95% CI: 0.14–0.57) among those with baseline LDL <100 mg/dL, 0.90mg/dL (95% CI: 0.63–1.18) among those with baseline LDL 100- <130mg/dL, and 2.04 mg/dL (95% CI: 1.59–2.50) among those with baseline LDL >130 mg/dL. Conclusions Patient use of a web-based portal to review laboratory results or email their clinicians increased substantially between 2006 and 2009. Patient use of web portals was associated with improvement of LDL level, with greater improvement among patients in worse control.

Huang, Jie; Graetz, Ilana; Brand, Richard; Hsu, John; Reed, Mary

2013-01-01

169

NASA Hurricane Data Portal  

NSDL National Science Digital Library

This portal is designed for viewing and studying hurricanes by utilizing measurements and data produced by National Aeronautics and Space Administration (NASA) remote-sensing instruments. Users can access current conditions information from NASA satellites (TRMM, AIRS, etc.), event-based information (maps and profiles) on active tropical storms or hurricanes, articles on the use of NASA data in hurricane monitoring and research, and archived maps and profiles from past storms. The Hurricane Viewer allows users to animate a hurricane path, showing levels of intensity and atmospheric information occuring at the time of the event. There are also 3-hour rainfall total images generated in near-real time for the Atlantic and Gulf regions by the Giovanni analysis tool.

2010-12-22

170

Extrahepatic portal vein aneurysm.  

PubMed

Portal vein aneurysms (PVAs) are usually incidental on imaging and asymptomatic. If it is symptomatic or associated with a pathologic finding, a treatment is recommended. We report a case of a 75-year-old Caucasian man presenting with symptomatic and size-increasing portosplenomesenteric aneurysms. Interventional radiology was not indicated because of the large size. A surgical approach was chosen for the patient. Surgical technique consists of an aneurysmorrhaphy in the first time and in the second time, a Goretex prosthesis placement involving the vein. Early complication was treated with a radiologic approach. Six months after surgery, patient had no more symptoms. PVA management remains a surgical challenge for surgeon, for timing and type of treatment. PMID:24456867

Levi Sandri, Giovanni Battista; Sulpice, Laurent; Rayar, Michel; Bosquet, Elise; Boudjema, Karim; Meunier, Bernard

2014-07-01

171

NASA Hurricane Data Portal  

NSDL National Science Digital Library

This portal is designed for viewing and studying hurricanes by utilizing measurements and data produced by National Aeronautics and Space Administration (NASA) remote-sensing instruments. Users can access current conditions and information from the Hurricane Data Analysis Tool (formerly the TRMM QuikScat Analysis tool), event-based information (maps and profiles) on active tropical storms or hurricanes, articles on the use of NASA data in hurricane monitoring and research, and archived maps and profiles from past storms. The Hurricane Viewer allows users to animate a hurricane path, showing levels of intensity and atmospheric information occurring at the time of the event. There are also 3-hour rainfall total images generated in near-real time for the Atlantic and Gulf regions by the Giovanni analysis tool.

172

CzechGeo/EPOS - Building a national data portal  

NASA Astrophysics Data System (ADS)

CzechGeo/EPOS is the consortium of seven geoscience institutions in the Czech Republic (Institute of Geophysics AS CR Prague, Institute of Rock Structure and Mechanics AS CR Prague, Institute of Geonics AS CR Ostrava, Institute of Physics of the Earth, Masaryk University Brno, Faculty of Mathematics and Physics, Charles University Prague, Faculty of Science, Charles University Prague, and Research Institute of Geodesy, Cartography and Topography Zdiby). These institutions operate a distributed system of seismic, GPS, magnetic, gravimetric and geodynamic observatories. The operational and personal costs of CzechGeo/EPOS are mostly covered by the Ministry of education, sports and youth within the support of twelve large research infrastructures in the Czech Republic. Web pages of the project www.czechgeo.cz are being built as a data portal which should integrate all the data and services provided by the involved institutions and research infrastructures. Seismic portal offers selected portions of digital data from permanent, local and temporary seismic stations, locations of seismic events in the country and worldwide, daily seismograms from permanent observatories and local seismic network Webnet, seismic bulletins and catalogs, and macroseismic observations on the territory of the Czech Republic. Magnetic portal involves besides real-time magnetograms also recent state of geomagnetic activity and its forecast for the next day. GPS portal will provide preprocessed data from regional GPS stations. Building the national portal is closely related with the development of the Preparatory phase of the EPOS (European Plate Observing System) project.

Zednik, J.; Hejda, P.

2012-04-01

173

Medical education in an electronic health record-mediated world.  

PubMed

This paper reflects on the extent to which we are preparing learners for practice in an electronic health record (EHR)-mediated world. We are currently training the last generation to remember a world without the Internet and the first who will practice in a largely EHR-mediated practice environment. We undertook a thematic review of the literature connecting medical education with e-health using the concepts of 'electronic health record' or 'electronic medical record' as a proxy for the broader notion of e-health. Our findings are more equivocal and cautious than earlier commentators might have expected and while there are examples of good practice and successful integration, the majority of articles we reviewed raised issues and problems with the current links between EHRs and medical education. Medical professionals in particular are quite ambivalent about many of the changes brought about by EHRs, and in the absence of changes in perception and practice it is likely that the connections between medical education and e-health will continue to be problematic. We hope that this paper will lead to an improved understanding of these problems and will serve to advance the discourse on how medical education should engage with the world of e-health and the world of e-health with medical education. PMID:23464893

Ellaway, Rachel H; Graves, Lisa; Greene, Peter S

2013-04-01

174

The EHR-ARCHE project: Satisfying clinical information needs in a Shared Electronic Health Record System based on IHE XDS and Archetypes?  

PubMed Central

Purpose While contributing to an improved continuity of care, Shared Electronic Health Record (EHR) systems may also lead to information overload of healthcare providers. Document-oriented architectures, such as the commonly employed IHE XDS profile, which only support information retrieval at the level of documents, are particularly susceptible for this problem. The objective of the EHR-ARCHE project was to develop a methodology and a prototype to efficiently satisfy healthcare providers’ information needs when accessing a patient's Shared EHR during a treatment situation. We especially aimed to investigate whether this objective can be reached by integrating EHR Archetypes into an IHE XDS environment. Methods Using methodical triangulation, we first analysed the information needs of healthcare providers, focusing on the treatment of diabetes patients as an exemplary application domain. We then designed ISO/EN 13606 Archetypes covering the identified information needs. To support a content-based search for fine-grained information items within EHR documents, we extended the IHE XDS environment with two additional actors. Finally, we conducted a formative and summative evaluation of our approach within a controlled study. Results We identified 446 frequently needed diabetes-specific information items, representing typical information needs of healthcare providers. We then created 128 Archetypes and 120 EHR documents for two fictive patients. All seven diabetes experts, who evaluated our approach, preferred the content-based search to a conventional XDS search. Success rates of finding relevant information was higher for the content-based search (100% versus 80%) and the latter was also more time-efficient (8–14 min versus 20 min or more). Conclusions Our results show that for an efficient satisfaction of health care providers’ information needs, a content-based search that rests upon the integration of Archetypes into an IHE XDS-based Shared EHR system is superior to a conventional metadata-based XDS search.

Duftschmid, Georg; Rinner, Christoph; Kohler, Michael; Huebner-Bloder, Gudrun; Saboor, Samrend; Ammenwerth, Elske

2013-01-01

175

Hidden Magnetic Portals Around Earth  

NASA Video Gallery

A NASA-sponsored researcher at the University of Iowa has developed a way for spacecraft to hunt down hidden magnetic portals in the vicinity of Earth. These gateways link the magnetic field of our...

176

Can patient portals reduce health disparities?. A perspective from asthma.  

PubMed

Much asthma research directed at achieving health equity is focused on patient education for self-management. Although adults are more likely to die from asthma, most studies target children. With the advent of the electronic health record, patient portals potentially offer adult patients as well as children and their caretakers a resource for disease management education, facilitating communication with health care providers and improving patient access to health care. However, difficult, limited, or inconvenient access to these patient portals could increase health disparities, whereas features such as accompanying audio platforms, the use of multimedia, and the ability to communicate across language barriers and educational levels potentially could improve communication and reduce differences in health outcomes. PMID:24640983

Apter, Andrea J

2014-05-01

177

The EarthScope Portal  

NASA Astrophysics Data System (ADS)

The EarthScope Portal is being developed in order to provide a unified, single-point of access to EarthScope data products from USArray, PBO, and SAFOD experiments. The portal will feature basic search and data access capabilities to allow users to discover and access EarthScope data using spatial, temporal, and other metadata- based search conditions. In this presentation, we will describe the features and design of the portal, which is being developed by a team consisting of GEON (Geosciences Network, http://www.geongrid.org), IRIS, UNAVCO, and Stanford. The portal search module invokes Web services developed by IRIS, UNAVCO, and Stanford to search for EarthScope data in the archives at each of these locations. The Web services provide information about all resources (data) that match the specified search conditions. Users will be able to select from the returned data sets, add selected data to a "data cart", and request the selected data to be packaged for download to the user. The initial services being defined are for "station discovery", to find which stations are available for specified spatial and temporal bounds, and "data discovery", to find the data sets that are available from the stations. Users will subsequently be able to choose the specific datasets, which will be assembled in a user "workspace" and available for download. The EarthScope Portal leverages the significant portal development efforts of the GEON Project at the San Diego Supercomputer Center, SDSC (http://portal.geongrid.org), and the development of Web services interfaces at the three data archive facilities. The portal is implemented using the open source GridSphere portal software infrastructure which supports the well-known Java portlet interface, viz. JSR 168 or the Portlet API. It uses a set of "core" portlets that have been developed in GEON for Data Registration, Search, and Workspace Services. We will provide a report on the current state of development of the Portal. A preliminary deployment of the portal software has been done on systems at SDSC; initial design has been done for the StationDiscovery and DataDiscovery services; and IRIS, UNAVCO, and Stanford have begun implementation of early version of the corresponding Web services which will run on servers at their respective locations. An early demonstration of this capability will be provided at the AGU meeting.

Baru, C.; Ahern, T.; Anderson, G.; Behrends, K.; Casey, R.; Hoyt, B.; Kamb, L.; Lin, K.; Meertens, C.; Memon, A.; Muench, J.; Stolte, C.; Weertman, B.; Weiland, C.

2007-12-01

178

Geotechnical Earthquake Engineering Portal  

NSDL National Science Digital Library

Site aiming to provide useful and educational information in geotechnical earthquake engineering. The site involves topics such as: liquefaction engineering, seismic slope analysis and soil structure interaction.

2008-09-29

179

The Cosmos Portal and the IYA2009 Project  

NASA Astrophysics Data System (ADS)

In 2007 the non-profit Digital Universe Foundation (DUF) launched the Earth Portal (earthportal.org) as a comprehensive resource for timely, objective, science-based information about the environment. There are currently over 1000 scholars from 60 countries engaged in this rapidly growing web-based collaboration. The Cosmos Portal is the second major DUF initiative (cosmosportal.org). In support of the IYA2009 effort, the Cosmos Portal is recruiting astronomy professionals to make use of easy online tools to publish articles, blogs, news items, image galleries, class notes, lectures, powerpoint presentations, links to other high quality websites or other educational material. A major difference between the Digital Universe and Wikipedia is that educational material is produced by identified experts, not anonymous contributors with unknown qualifications. The Digital Universe is a 501(c)(3) public charity whose goal is to evolve into a worldwide online community (a social network) whose centerpiece is an ever growing Asimov-Sagan Encyclopedia Galactica created by experts. We encourage you to write an encylopedia article or start a portal on your favorite topic or join an existing topic as an expert contributor.

Haisch, Bernard M.; Sims, M.; Lindblom, J.

2009-05-01

180

Portal to the Future  

NASA Astrophysics Data System (ADS)

Museums are a portal connecting us to a deeper understanding of the world in which we live, from our own backyards to the most distant galaxies; an access point to the incredible discoveries we have made about the natural world and a flashpoint for inspiring the next generation of explorers. The Cleveland Museum of Natural History is poised to redefine what a natural history museum can be, offering visitors an opportunity to travel through space and time to explore the origins of our planet, follow the evolution of life on Earth and project into -- and plan for -- the future. The Museum will launch visitors into the future this summer via SmartHome Cleveland -- an extremely energy-efficient "passive house" that will demonstrate the future of green building technology. This unique exhibit is part of a special series of exhibits, programs and workshops on sustainability, including a major exhibit on Climate Change, which will be featured at the Museum this summer and fall.

Gates, Evalyn

2011-04-01

181

29 CFR 785.50 - Section 4 of the Portal-to-Portal Act.  

Code of Federal Regulations, 2010 CFR

...2010-07-01 2010-07-01 false Section 4 of the Portal-to-Portal Act. 785.50 Section 785.50 Labor Regulations...Miscellaneous Provisions § 785.50 Section 4 of the Portal-to-Portal Act. Section 4 of this Act...

2010-07-01

182

29 CFR 785.50 - Section 4 of the Portal-to-Portal Act.  

Code of Federal Regulations, 2013 CFR

...2013-07-01 2013-07-01 false Section 4 of the Portal-to-Portal Act. 785.50 Section 785.50 Labor Regulations...Miscellaneous Provisions § 785.50 Section 4 of the Portal-to-Portal Act. Section 4 of this Act...

2013-07-01

183

29 CFR 785.24 - Principles noted in Portal-to-Portal Bulletin.  

Code of Federal Regulations, 2010 CFR

...2009-07-01 2009-07-01 false Principles noted in Portal-to-Portal Bulletin. 785.24 Section 785.24 Labor ...Concluding Activities § 785.24 Principles noted in Portal-to-Portal Bulletin. In November, 1947,...

2009-07-01

184

29 CFR 785.24 - Principles noted in Portal-to-Portal Bulletin.  

Code of Federal Regulations, 2010 CFR

...2010-07-01 2010-07-01 false Principles noted in Portal-to-Portal Bulletin. 785.24 Section 785.24 Labor ...Concluding Activities § 785.24 Principles noted in Portal-to-Portal Bulletin. In November, 1947,...

2010-07-01

185

29 CFR 785.50 - Section 4 of the Portal-to-Portal Act.  

Code of Federal Regulations, 2010 CFR

...2009-07-01 2009-07-01 false Section 4 of the Portal-to-Portal Act. 785.50 Section 785.50 Labor Regulations...Miscellaneous Provisions § 785.50 Section 4 of the Portal-to-Portal Act. Section 4 of this Act...

2009-07-01

186

29 CFR 785.24 - Principles noted in Portal-to-Portal Bulletin.  

Code of Federal Regulations, 2013 CFR

...2013-07-01 2013-07-01 false Principles noted in Portal-to-Portal Bulletin. 785.24 Section 785.24 Labor ...Concluding Activities § 785.24 Principles noted in Portal-to-Portal Bulletin. In November, 1947,...

2013-07-01

187

Web Portal for Multicast Delivery Management.  

ERIC Educational Resources Information Center

Presents a Web portal for multicast communication management, which provides fully automatic service management with integrated provisioning of hardware equipment. Describes the software architecture, the implementation, and the application usage of the Web portal for multicast delivery. (Author/AEF)

Mannaert, H.; De Gruyter, B.; Adriaenssens, P.

2003-01-01

188

BSD Portals for LINUX 2.0  

Microsoft Academic Search

Portals, an experimental feature of 4.4BSD, extend the filesystem namespace by exporting certain open(2) requests to a user-space daemon. A portal daemon is mounted into the file namespace as if it were a standard filesystem. When the kernel resolves a pathname and encounters a portal mount point, the remainder of the path is passed to the portal daemon. De- pending

A. David McNab

189

Portal vein aneurysm in a dog.  

PubMed

Portal vein aneurysm (PVA) is a rare abnormal dilatation of the portal vein, which has not been reported in dogs. We describe the findings of ultrasound and computed tomography in a case of PVA in a young male toy poodle, with the final diagnosis established by explorative surgical observation. The dog had an aneurysmal fusiform dilatation in the extrahepatic portal vein with portal hypertension and multiple portsystemic shunts. This is the first report of canine PVA. PMID:22571895

Miyawaki, Shingo; Washizu, Makoto; Maeda, Sadatoshi; Shibata, Sanae; Watanabe, Kazuhiro; Yamazoe, Kazuaki

2012-09-01

190

Using the SORASCS Prototype Web Portal.  

National Technical Information Service (NTIS)

This document describes how to use the example portal distributed with SORASCS. The portal is meant as an example of how users may interact with services. It covers three things: 1) Navigating the portal; 2) Registering and managing services; and 3) Using...

B. Schmerl D. Garlan K. M. Carley M. W. Bigrigg

2010-01-01

191

Portal Monitor Future Development Work: Hardware Improvements  

SciTech Connect

LANL portal monitor was a modification of a previously installed (permanent) unattended monitoring system (UMS). Modifications to the UMS to make the portal were sometimes based on mistaken assumptions about exercise-specific installation and access. Philosophical approach to real-time portal differs in some areas from UMS.

Browne, Michael C. [Los Alamos National Laboratory

2012-07-03

192

OntoPortal: An ontology-supported portal architecture with linguistically enhanced and focused crawler technologies  

Microsoft Academic Search

This paper proposed the techniques of ontology and linguistics to develop a fully-automatic annotation technique, coupling with an automatic ontology construction method, could play a key role in the development of Semantic Portals. An ontology-supported portal architecture: OntoPortal was proposed according to this technique, in which three internal components Portal Interface, Semantic Portal, and OntoCrawler was integrated to rapidly and

Sheng-yuan Yang

2009-01-01

193

How to measure the QoS of a web-based EHRs system: development of an instrument.  

PubMed

The quality of service (QoS) can be treated as a set of concepts whose satisfaction/dissatisfaction generates a global positive/negative vision about the service provided by any application. The different nature of the services and its features require an analysis of the factors that have the greatest influence on the users' opinion and, therefore, measuring the quality of service in each application requires a specific instrument. This paper will introduce an instrument to measure the QoS offered to users by a general Web application for Electronic Health Records (EHRs). The collection of opinions from a pilot sample and the performance of an explanatory factor analysis will bring together the factors that best sum up the quality of an EHRs application. Subsequently, a confirmatory factor analysis will be performed to make the study reliable and, as its name suggests, to confirm that indeed the structure of the instrument developed measures the QoS in accordance with the requirements of the users. PMID:22427175

de la Torre-Díez, Isabel; López-Coronado, Miguel; Rodrigues, Joel J P C

2012-12-01

194

Direct bypassing of extrahepatic portal venous obstruction in children: A new technique for combined hepatic portal revascularization and treatment of extrahepatic portal hypertension  

Microsoft Academic Search

Background: Decompression of extrahepatic portal hypertension by directly bypassing the thrombosed portal vein has never been reported in cases of children with idiopathic (or neonatal portal vein obstruction and cavernoma.Methods: Seven children (15 years or younger) with portal vein obstruction requiring surgical decompression (urgently in two cases), and in whom preoperative Doppler had shown that the intrahepatic portal branches were

Jean de Ville de Goyet; Daniele Alberti; Philippe Clapuyt; Diego Falchetti; Vaifro Rigamonti; Nikolaas M. A Bax; Jean-Bernard Otte; Etienne M Sokal

1998-01-01

195

Evaluating alert fatigue over time to EHR-based clinical trial alerts: findings from a randomized controlled study. | accrualnet.cancer.gov  

Cancer.gov

The authors hypothesized that repeated exposure to clinical trial alerts (a recruitment decision tool based on matches of trial criteria with EHRs) results in "alert fatigue," defined as a reduction to responses to alerts and subsequent referrals to trials. At the end of the study period, response rates remained relatively high, while greater reductions in referrals were recorded.

196

The ADRICOSM STAR GeoPortal  

NASA Astrophysics Data System (ADS)

From Stockholm (1972) to Rio de Janeiro (1992) and to Johannesburg (2002), environmental protection objectives are related to the principles of sustainable development. This includes the following important components: participation, information, communication, training (capacity building) and education. Better information ensure more participation from individuals, and allows citizens to take part in many different actions that can influence the policy process. Participation to political decisions need access to reliable and quality controlled information. The ADRICOSM Portal was developed in order to manage data diversity, provide access to any kind of product, provide metadata completeness and accuracy. The product, as defined in ADRICOSM, is anything that can be offered to a client and that might satisfy a want or need. This implied the implementation of services that was taking into consideration the diversity of the objects to be provided to users: observations, model outputs, maps, etc. The implementation of the portal was based on two metadata levels: 1. Directory level - consisting of broad descriptions of the contents of data sets; used to locate data sets of potential interest and 2. Data level - consisting of the actual data objects. The portal was developed as a simplified front end for the partners data management systems, giving emphasis on federated access points focused on thematic aspects. This was based on the idea that specialized customer-related access points can be better carried out by delegated teams of experts who know the needs of different customers, define the user software which is most suited to them. The data management systems provide facilities for two data tracks, one in real-time (or near-realtime) and one in delayed mode. Both tracks are based on the same data sources and transmission systems, but the data follow different routes and are processed differently depending on user requirements. The real-time data and model products are checked after first use for up-grading and additional quality control to ensure that all relevant data are preserved for final archival. In summary the ADRICOSM Geoportal has: - the objective to support data exchange in Adricosm Star and the implementation of tools to facilitate the access to data and information through thematic portals, converting individual data provider systems into a federation. - provide the necessary information to users on content of data that can be accessed in the federated systems. The portal is organised in three modules and a catalog. The module 1 has been realized by giving information on the project and objectives, data policy, reasons to provide products and services, link to the themes. Skilled people can jump to the data/products/services provider by clicking on the geographical map. Module 2 is providing more specific information on centers providing data/products/services. Module 3 is providing a direct access to partners product. It contains a short description of the products and a link. Module 4 contain the catalog for each partner product and is based on What, Where, When and How.

Giorgetti, Alessandra; Cesarini, Claudia; Gambetta, Marco; Reseghetti, Franco; Vinci, Matteo

2010-05-01

197

Pathology and pathogenesis of portal venopathy in idiopathic portal hypertension: Hints from systemic sclerosis.  

PubMed

Idiopathic portal hypertension (IPH) is a non-cirrhotic presinuosidal portal hypertension of unknown etiology. Stenosis of smaller portal veins with portal fibrosis is a pathologic hallmark of IPH. Association of systemic sclerosis (SSc) with IPH is recognized, and similar pathologic features are reported in small portal tracts and skin of IPH and SSc, respectively. In addition, levels of transforming growth factor-beta (TGF-beta) and connective tissue growth factor are elevated in serum and in affected skin and portal tracts of these two diseases, suggesting that IPH share fibrogenetic mechanisms with SSc. Endothelial to mesenchymal transition (EndMT) of microvasculatures of skin could be responsible for dermal fibrosis in SSc. In IPH, EndMT of portal vein endothelium via TGF-beta/Smad activation may also be involved in small portal venpathy. In IPH, enhanced expression of pSmad2 in venous endothelium of smaller portal veins was associated with reduced CD34 expression. CD34 and S100A4, and CD34 and type I collagen were colocalized to portal vein endothelium in IPH. Such myofibroblastic phenotypes may be responsible for periportal-venous deposition of collagen and compressive portal venous obliteration. These small portal venous lesions may in turn lead to portal venous insufficiency followed by subcapsular atrophy in IPH. PMID:19796041

Nakanuma, Yasuni; Sato, Yasunori; Kiktao, Azusa

2009-10-01

198

Vertical flow chemical detection portal  

DOEpatents

A portal apparatus for screening objects or persons for the presence of trace amounts of chemical substances such as illicit drugs or explosives. The apparatus has a test space, in which a person may stand, defined by two generally upright sides spanned by a horizontal transom. One or more fans in the transom generate a downward air flow (uni-directional) within the test space. The air flows downwardly from a high pressure upper zone, past the object or person to be screened. Air moving past the object dislodges from the surface thereof both volatile and nonvolatile particles of the target substance. The particles are entrained into the air flow which continues flowing downward to a lower zone of reduced pressure, where the particle-bearing air stream is directed out of the test space and toward preconcentrator and detection components. The sides of the portal are specially configured to partially contain and maintain the air flow.

Linker, Kevin L. (Albuquerque, NM) [Albuquerque, NM; Hannum, David W. (Albuquerque, NM) [Albuquerque, NM; Conrad, Frank James (Russellville, SC) [Russellville, SC

1999-01-01

199

Vertical flow chemical detection portal  

DOEpatents

A portal apparatus is described for screening objects or persons for the presence of trace amounts of chemical substances such as illicit drugs or explosives. The apparatus has a test space, in which a person may stand, defined by two generally upright sides spanned by a horizontal transom. One or more fans in the transom generate a downward air flow (uni-directional) within the test space. The air flows downwardly from a high pressure upper zone, past the object or person to be screened. Air moving past the object dislodges from the surface thereof both volatile and nonvolatile particles of the target substance. The particles are entrained into the air flow which continues flowing downward to a lower zone of reduced pressure, where the particle-bearing air stream is directed out of the test space and toward preconcentrator and detection components. The sides of the portal are specially configured to partially contain and maintain the air flow. 3 figs.

Linker, K.L.; Hannum, D.W.; Conrad, F.J.

1999-06-22

200

World Agricultural Information Centre Portal  

NSDL National Science Digital Library

Disseminating information about any subject to a broad range of constituents and concerned parties and organizations can be a formidable task, no matter what the medium might be. This website is designed to achieve just that goal for agriculture, and it has a mandate from the Food and Agriculture Organization (FAO) of the United Nations. The World Agricultural Information Centre (WAICENT) is designed to provide a framework for disseminating agricultural information. In many ways functions as a portal, collecting links to relevant websites and documents through a series of topical and subtopical headings. Given the sheer amount of material here, visitors will take comfort to learn that the siteâÂÂs homepage features a âÂÂHighlightsâ section that draws their attention to new additions, such as the FAO Tsunami Portal. Additionally, visitors can take advantage of a sophisticated search engine offered here, or just browse around through such topics as agroindustry and forest management.

201

Endoscopic Management of Portal Hypertension  

PubMed Central

Cirrhosis is the leading cause of portal hypertension worldwide, with the development of bleeding gastroesophageal varices being one of the most life-threatening consequences. Endoscopy plays an indispensible role in the diagnosis, staging, and prophylactic or active management of varices. With the expected future refinements in endoscopic technology, capsule endoscopy may one day replace traditional gastroscopy as a diagnostic modality, whereas endoscopic ultrasound may more precisely guide interventional therapy for gastric varices.

Al-Busafi, Said A.; Ghali, Peter; Wong, Philip; Deschenes, Marc

2012-01-01

202

Uzbekistan Radiation Portal Monnitoring System  

SciTech Connect

The work proposed in this presentation builds on the foundation set by the DTRA funded demonstration project begun in 2000 and completed in December of 2003. This previous work consisted of two phases whose overall objective was to install portal radiation monitors at four select ports-of-entry in Uzbekistan (Tashkent International Airport, Gisht-Kuprik (Kazakhstan border), Alat (Turkmenistan border), and Termez (Afghanistan border)) in order to demonstrate their effectiveness in preventing the illicit trafficking of nuclear materials. The objectives also included developing and demonstrating capabilities in the design, installation, operation, training, and maintenance of a radiation portal monitoring system. The system and demonstration project has proved successful in many ways. An effective working relationship among the Uzbekistan Customs Services, Uzbekistan Border Guards, and Uzbekistan Institute of Nuclear Physics has been developed. There has been unprecedented openness with the sharing of portal monitor data with Lawrence Livermore National Laboratory. The system has proved to be effective, with detection of illicit trafficking, and, at Alat, an arrest of three persons illegally transporting radioactive materials into Turkmenistan. The demonstration project has made Uzbekistan a model nonproliferation state in Central Asia and, with an expanded program, places them in a position to seal a likely transit route for illicit nuclear materials. These results will be described. In addition, this work is currently being expanded to include additional ports-of-entry in Uzbekistan. The process for deciding on which additional ports-of-entry to equip will also be described.

Richardson, J; Knapp, R; Loshak, A; Yuldashev, B; Petrenko, V

2005-06-10

203

Middle School Portal: Math and Science Pathways (MSP2)  

NSDL National Science Digital Library

The Middle School Portal 2: Math and Science Pathways (MSP2) supports middle grades educators with high-quality, standards-based resources and promotes collaboration and knowledge-sharing among its users. Educators use MSP2 to increase content knowledge in science, mathematics, and appropriate pedagogy for youth ages 10 to 15. MSP2 employs social networking and digital tools to foster dynamic experiences that promote creation, modification, and sharing of resources, facilitate professional development, and support the integration of technology into practice. MSP2 is a project of the Ohio State University College of Education and Human Ecology, National Middle School Association, and Education Development Center, Inc., and is funded by the National Science Foundation. The partners integrate resources, tools, and services across projects, and support multiple methods of resource discovery to meet the needs of this audience.

2005-03-24

204

Web-based B2B portals  

Microsoft Academic Search

A portal development frenzy is sweeping through commerce in an attempt to capture the growing business-to-business (B2B) Internet market. However, the very tactics employed to attract users have blurred the significance and, consequently, the effective utilization of portals in B2B strategies. This research analyzes the development of portals to propose a classification based on the informational\\/transactional, horizontal\\/vertical, and public\\/private dimensions

Irvine Clarke; Theresa B. Flaherty

2003-01-01

205

Leveraging Organizational Knowledge Management through Corporate Portal  

Microsoft Academic Search

\\u000a This pilot study examines the role of corporate portal on leveraging organizational knowledge management (acquisition, conversion,\\u000a application and protection). It also explores the business processes benefits (such as efficiency, effectiveness and innovation)\\u000a and employees benefits (such as learning, adaptability and satisfaction) that result from supporting organizational KM through\\u000a corporate portal. The preliminary analysis of instructors’ utilization of corporate portal in

Kamla Ali Al-Busaidi

206

The Astrophysics Simulation Collaboratory Portal: A Science Portal Enabling Community Software Development  

Microsoft Academic Search

Grid Portals, based on standard Web technologies, are emerging as important and useful user interfaces to computational and data grids. Grid portals enable virtual organizations, comprised of distributed researchers to collaborate and access resources more efficiently and seamlessly. The Astrophysics Simulation Collaboratory (ASC) Grid Portal provides a framework to enable researchers in the field of numerical relativity to study astrophysical

Michael Russell; Gabrielle Allen; Greg Dauess; Ian T. Foster; Edward Seidel; Jason Novotnyt; John Shales; Gregor von Laszewski

2001-01-01

207

The corporate portal as information infrastructure: towards a framework for portal design  

Microsoft Academic Search

Corporate portals offer organizational users the ability to access a wide variety of information sources directly from the desktop. By functioning as an underlying Web infrastructure for information management, portals can provide firms with a shared information work space that facilitates access to information content, organizational communications, and group collaboration. To foster the development of portals in this way requires

Brian Detlor

2000-01-01

208

Management of Portal Evolution - Introducing Evolution Management for the Corporate Financial Portal  

Microsoft Academic Search

Software evolution is an essential concept underlying the engineering of corporate portals. Due to the complexity of such systems, it requires great effort and is not advisable to design and implement a feature-complete corporate solution. The concept of evolutionary portal development helps portal engineers to cope with design complexity. While the technical perspective on component based software development and evolution

Hong Tuan Kiet Vo; Helmuth Elsner

2007-01-01

209

Portal Hypertension Secondary to Isolated Liver Tuberculosis  

PubMed Central

In this report, we present a case of isolated liver tuberculosis (TB) as a cause of non-cirrhotic portal hypertension leading to bleeding esophageal varices. Although TB has been known to cause portal hypertension in a variety of ways, this case was notable for the presence of periportal inflammation and granulomas, also seen in hepatic schistosomiasis. Herein, we discuss isolated liver TB and the differential diagnosis of non-cirrhotic portal hypertension. In endemic areas, TB should be considered in the differential diagnosis of non-cirrhotic portal hypertension.

Mojtahedzadeh, Mona; Otoukesh, Salman; Shahsafi, Mohammad R.; Tahbaz, Mohammad O.; Rahvari, Seyed K.; Poorabdollah, Mihan; Sajadi, Mohammad M.

2012-01-01

210

Web-based Service Portal in Healthcare  

NASA Astrophysics Data System (ADS)

Information delivery is one the most important task in healthcare. The growing sector of electronic healthcare has an important impact on the information delivery. There are two basic approaches towards information delivering. The first is web portal and second is touch-screen terminal. The aim of this paper is to investigate the web-based service portal. The most important advantage of web-based portal in the field of healthcare is an independent access for patients. This paper deals with the conditions and frameworks for healthcare portals

Silhavy, Petr; Silhavy, Radek; Prokopova, Zdenka

211

Hepatopulmonary syndrome in noncirrhotic portal hypertensive patients.  

PubMed

Hepatopulmonary syndrome has yet not been sufficiently assessed in noncirrhotic portal hypertension. The prevalence of hepatopulmonary syndrome was determined in 31 consecutive patients with noncirrhotic portal hypertension (19 idiopathic portal hypertension, 7 portal vein thrombosis, 5 congenital hepatic fibrosis) and 46 patients with liver cirrhosis. Contrast echocardiography was carried out in all patients. Macroaggregated albumin lung perfusion scans were performed in patients with positive contrast echocardiogram. Hepatopulmonary syndrome was detected in 5 (10.8%) cirrhotic and 3 (9.7%) noncirrhotic portal hypertensive patients (2 idiopathic portal hypertension, 1 portal vein thrombosis). All patients with hepatopulmonary syndrome had an increased shunt fraction (13-62%) and a decreased diffusion capacity of carbon monoxide (40-79%), and 7 of them were hypoxemic (PaO2, 31.6-69.8 mm Hg). These findings show that hepatopulmonary syndrome may occur in both liver cirrhosis and noncirrhotic portal hypertension and that portal hypertension is the predominant etiopathogenic factor related to hepatopulmonary syndrome. PMID:12757170

Kaymakoglu, Sabahattin; Kahraman, Tevfik; Kudat, Hasan; Demir, Kadir; Cakaloglu, Yilmaz; Adalet, Isik; Dincer, Dinc; Besisik, Fatih; Boztas, Güngör; Sözen, Ahmet Bilge; Mungan, Zeynel; Okten, Atilla

2003-03-01

212

2. PORTAL TWO FROM SOUTHEAST Sublet Mine No. 6, ...  

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

2. PORTAL TWO FROM SOUTHEAST - Sublet Mine No. 6, Portal Two, North portal, west side of Willow Creek Valley, east of County Road No. 306, 3 miles north of U.S. Highway 189, Kemmerer, Lincoln County, WY

213

1. PORTAL TWO FROM NORTHEAST Sublet Mine No. 6, ...  

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

1. PORTAL TWO FROM NORTHEAST - Sublet Mine No. 6, Portal Two, North portal, west side of Willow Creek Valley, east of County Road No. 306, 3 miles north of U.S. Highway 189, Kemmerer, Lincoln County, WY

214

1. PORTAL ONE (MANWAY) FROM SOUTHEAST Sublet Mine No. ...  

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

1. PORTAL ONE (MANWAY) FROM SOUTHEAST - Sublet Mine No. 6, Portal One, South Portal, west side of Willow Creek Valley, east of County Road No. 306, 3 miles north of U.S. Highway 189, Kemmerer, Lincoln County, WY

215

2. PORTAL ONE (MANWAY) FROM SOUTHWEST Sublet Mine No. ...  

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

2. PORTAL ONE (MANWAY) FROM SOUTHWEST - Sublet Mine No. 6, Portal One, South Portal, west side of Willow Creek Valley, east of County Road No. 306, 3 miles north of U.S. Highway 189, Kemmerer, Lincoln County, WY

216

The use of an electronic portal imaging system to measure portal dose and portal dose profiles.  

PubMed

The dosimetric characteristics of a scanning liquid-filled ionization chamber (SLIC) electronic portal imaging device have been investigated. To assess the system's response in relation to incident radiation beam intensity, a series of characteristic curves are obtained for various field sizes and nominal energies of 6 and 10 MV photons. The response of the imaging system is dependent on incident radiation intensity and can be described to within 1% accuracy on central axis using a square root function. Portal dose measurements with the SLIC at the plane of the detector, on central axis of the beam using homogeneous attenuating phantom materials show that the imaging system is capable of measuring the portal (transmission) dose to within 3% of the ionization chamber results for homogeneous material. For two-dimensional dosimetry applications, the system is calibrated with a 10 cm Perspex block used as beam flattening material on the detector cassette to correct for variations in individual ion chamber sensitivity and the effect of nonuniform beam profiles produced by the flattening filter. Open and wedged dose profiles measured with the SLIC agreed with ion chamber measured profiles to within 3.5% accuracy. PMID:9800697

Parsaei, H; el-Khatib, E; Rajapakshe, R

1998-10-01

217

Retrospective checking of compliance with practice guidelines for acute stroke care: a novel experiment using openEHR's Guideline Definition Language  

PubMed Central

Background Providing scalable clinical decision support (CDS) across institutions that use different electronic health record (EHR) systems has been a challenge for medical informatics researchers. The lack of commonly shared EHR models and terminology bindings has been recognised as a major barrier to sharing CDS content among different organisations. The openEHR Guideline Definition Language (GDL) expresses CDS content based on openEHR archetypes and can support any clinical terminologies or natural languages. Our aim was to explore in an experimental setting the practicability of GDL and its underlying archetype formalism. A further aim was to report on the artefacts produced by this new technological approach in this particular experiment. We modelled and automatically executed compliance checking rules from clinical practice guidelines for acute stroke care. Methods We extracted rules from the European clinical practice guidelines as well as from treatment contraindications for acute stroke care and represented them using GDL. Then we executed the rules retrospectively on 49 mock patient cases to check the cases’ compliance with the guidelines, and manually validated the execution results. We used openEHR archetypes, GDL rules, the openEHR reference information model, reference terminologies and the Data Archetype Definition Language. We utilised the open-sourced GDL Editor for authoring GDL rules, the international archetype repository for reusing archetypes, the open-sourced Ocean Archetype Editor for authoring or modifying archetypes and the CDS Workbench for executing GDL rules on patient data. Results We successfully represented clinical rules about 14 out of 19 contraindications for thrombolysis and other aspects of acute stroke care with 80 GDL rules. These rules are based on 14 reused international archetypes (one of which was modified), 2 newly created archetypes and 51 terminology bindings (to three terminologies). Our manual compliance checks for 49 mock patients were a complete match versus the automated compliance results. Conclusions Shareable guideline knowledge for use in automated retrospective checking of guideline compliance may be achievable using GDL. Whether the same GDL rules can be used for at-the-point-of-care CDS remains unknown.

2014-01-01

218

WEST PORTAL. NOTE SHELTER PANELS COMPOSED OF VERTICAL SHEATHING WITH ...  

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

WEST PORTAL. NOTE SHELTER PANELS COMPOSED OF VERTICAL SHEATHING WITH ATTACHED GUARD RAIL JUST INSIDE PORTAL. - Uhlerstown Bridge, Spanning Delaware Canal, Uhlerstown Hill Road, Uhlerstown, Bucks County, PA

219

Regional Ocean Data Portal: Transforming Information to Knowledge  

NASA Astrophysics Data System (ADS)

The mission of the Gulf of Mexico Coastal Ocean Observing System’s (GCOOS) regional data portal is to aggregate data and model output from distributed providers and to offer these, and derived products, through a single access point in standardized ways to a diverse set of users. The portal evolved under the NOAA-led U.S. Integrated Ocean Observing System (IOOS) program where automated largely-unattended machine-to-machine interoperability has always been a guiding tenet for system design. Initially, the portal focused on aggregating relatively homogeneous oceanographic and marine meteorological data from the principal Gulf of Mexico data providers. Obtaining community agreements from the data providers on data formats, vocabularies, and levels of service was relatively easy because the technical barriers to participation were low and we were able to provide financial support to them to make small additions or changes to their local data systems. Over time, the portal requirements became more complex as new parameters, new providers and heterogeneous data streams were added and the spatial domain increased to include beaches and adjacent wetlands. This began to strain our resources and take us outside our science domains of expertise. During the same period, the Gulf of Mexico Alliance (GOMA), a new environmental quality initiative involving the five Gulf states and Mexico with similar goals and directives as those of our sponsor, gained momentum and demanded both our attention and participation. GOMA is working, mostly among themselves, to discover or establish community standards for various types of data sets - e.g. water quality and nutrients. In addition to aggregation, the portal is also tasked with producing products from the collected information streams. Arriving at a prioritized list of desired products has been a major part of the business conducted by the GCOOS Regional Association (RA). Numerous stakeholder (e.g. emergency responders, oil and gas producers, recreational boaters, etc.) workshops were held to elicit user needs and requirements for observing system products for each group. The GCOOS-RA’s Products and Services Committee and Education and Outreach Council have gone through similar activities aimed at determining what products various users groups want. We have been sensitive to the private sector when deciding which products to produce. While science users want numbers, users of all types mainly want maps. We have tried to develop flexible capabilities within the portal that helps users to create their own fused products, ad hoc, for a variety of output devices, from desktop screens to the smart phones. We will discuss how our data management system has evolved within the backdrop of rapidly changing technologies and diverse community requirements.

Howard, M. K.; Gayanilo, F. C.; Jochens, A. E.

2009-12-01

220

Percutaneous transhepatic portal vein stenting in a patient with benign non-transplant postoperative portal vein stenosis: A case report.  

PubMed

Extrahepatic portal vein stenosis is caused by a variety of benign and malignant diseases and results in development of symptoms due to portal hypertension. Benign post-surgical adhesions causing portal vein stenosis in non-transplant population is an uncommon etiology of portal hypertension. Endovascular treatment of such patients with angioplasty and stenting is uncommonly reported in literature. We report a case of portal hypertension caused by benign postoperative portal vein fibrosis, successfully treated by self-expandable metallic stent. PMID:24604941

Madhusudhan, Ks; Agrawal, Nikhil; Srivastava, Deep N; Pal, Sujoy; Gupta, Arun K

2013-10-01

221

Percutaneous transhepatic portal vein stenting in a patient with benign non-transplant postoperative portal vein stenosis: A case report  

PubMed Central

Extrahepatic portal vein stenosis is caused by a variety of benign and malignant diseases and results in development of symptoms due to portal hypertension. Benign post-surgical adhesions causing portal vein stenosis in non-transplant population is an uncommon etiology of portal hypertension. Endovascular treatment of such patients with angioplasty and stenting is uncommonly reported in literature. We report a case of portal hypertension caused by benign postoperative portal vein fibrosis, successfully treated by self-expandable metallic stent.

Madhusudhan, KS; Agrawal, Nikhil; Srivastava, Deep N; Pal, Sujoy; Gupta, Arun K

2013-01-01

222

NCI Launches Proteomics Assay Portal  

Cancer.gov

In a paper recently published by the journal Nature Methods, Investigators from the National Cancer Institute’s Clinical Proteomic Tumor Analysis Consortium (NCI-CPTAC) announced the launch of a proteomics Assay Portal for multiple reaction monitoring-mass spectrometry (MRM-MS) assays. This community web-based repository for well-characterized quantitative proteomic assays currently consists of 456 unique peptide assays to 282 unique proteins and serves as a public resource of methodologies and data related to cancer associated targets.

223

Charting a Smooth Course for Portal Development.  

ERIC Educational Resources Information Center

Describes how San Diego State University created a collaborative, objective, and quantitative metric, or rubric, to support its decision-making process regarding a Web portal. Discusses how the rubric was used to score different portal software systems during demonstrations and as a checklist and inventory to describe potential options. (EV)

Frazee, James P.

2001-01-01

224

Factors Affecting Faculty Web Portal Usability  

ERIC Educational Resources Information Center

The study investigated the factors that might significantly affect web portal usability. Results of the study were intended to serve as inputs for faculty web portal development of the University of the East-Manila. Descriptive statistics utilized questionnaire data from 82 faculty members. The data showed that most of the respondents were…

Bringula, Rex P.; Basa, Roselle S.

2011-01-01

225

Portal vein gas in emergency surgery  

PubMed Central

Background Portal vein gas is an ominous radiological sign, which indicates a serious gastrointestinal problem in the majority of patients. Many causes have been identified and the most important was bowel ischemia and mesenteric vascular accident. The presentation of patients is varied and the diagnosis of the underlying problem depends mainly on the radiological findings and clinical signs. The aim of this article is to show the clinical importance of portal vein gas and its management in emergency surgery. Methods A computerised search was made of the Medline for publications discussing portal vein gas through March 2008. Sixty articles were identified and selected for this review because of their relevance. These articles cover a period from 1975–2008. Results Two hundreds and seventy-five patients with gas in the portal venous system were reported. The commonest cause for portal vein gas was bowel ischemia and mesenteric vascular pathology (61.44%). This was followed by inflammation of the gastrointestinal tract (16.26%), obstruction and dilatation (9.03%), sepsis (6.6%), iatrogenic injury and trauma (3.01%) and cancer (1.8%). Idiopathic portal vein gas was also reported (1.8%). Conclusion Portal vein gas is a diagnostic sign, which indicates a serious intra-abdominal pathology requiring emergency surgery in the majority of patients. Portal vein gas due to simple and benign cause can be treated conservatively. Correlation between clinical and diagnostic findings is important to set the management plan.

Hussain, Abdulzahra; Mahmood, Hind; El-Hasani, Shamsi

2008-01-01

226

Wrist arthroscopy through a volar radial portal  

Microsoft Academic Search

Purpose: To quantitatively describe the neurovascular relationships of a volar radial wrist arthroscopy portal and to evaluate whether volar wrist arthroscopy identified additional pathology of the dorsal capsular structures and the palmar region of the scapholunate interosseous ligament that was not seen through the dorsal portals. Type of Study: This study was an anatomic study and retrospective chart review. Methods:

David J. Slutsky

2002-01-01

227

BSD Portals for LINUX 2.0.  

National Technical Information Service (NTIS)

Portals, an experimental feature of 4.4BSD, extend the file system name space by exporting certain open () requests to a user-space daemon. A portal daemon is mounted into the file name space as if it were a standard file system. When the kernel resolves ...

A. D. McNab

1999-01-01

228

A Grid Web Portal for Aerospace  

Microsoft Academic Search

Abstract—A wind tunnel simulation requires high-performance computing ,power ,like supercomputers and deep knowledge of this subject. Those requirements make win tunnel simulation difficult. Grid technology will make these difficulties simpler by providing easy to use grid web portal. By using grid web portal, scientist can execute simulation and access to highperformance computing power without any serious difficulties. In this paper

Sang Boem Lim; Joobum Kim; Nam Gyu Kim; June H. Lee; Chongam Kim; Yoonhee Kim

2006-01-01

229

Interoperability in an Atmospheric Composition Portal  

Microsoft Academic Search

The Atmospheric Composition Constellation (ACC) and the Workgroup for Information Systems and Services (WGISS) within the Committee on Earth Observation Satellites (CEOS) is developing a portal to support interoperability among the atmospheric composition research and applications communities. The portal will provide data access, tools and contextual guidance for an international suite of remote sensing datasets. The initial prototype will provide

F. Lindsay; C. Lynnes; G. Leptoukh; S. R. Falke; E. M. Robinson; B. Hildenbrand; O. Goussev; P. Sommer

2009-01-01

230

Interoperability in CEOS Atmospheric Composition Portal  

Microsoft Academic Search

The Atmospheric Composition Constellation (ACC) and the Workgroup for Information Systems and Services (WGISS) within the Committee on Earth Observation Satellites (CEOS) is developing a portal to support interoperability among the atmospheric composition research and applications communities. The portal will provide data access, tools and contextual guidance for an international suite of remote sensing datasets. The initial prototype will provide

Beate Hildenbrand; Oleg Goussev; Peter Sommer; Séverine Bernonville; Francis Lindsay; Christopher S. Lynnes; Greg Leptoukh; Stefan R. Falke; Erin M. Robinson

2010-01-01

231

Telemedicine portal and standardized clinical documents.  

PubMed

The paper describes the experience of creating a flexible telemedicine portal intended to improve a business process of information exchanges needed to manage real-time telemedicine events. The portal structure allows use of digitally-signed standardized clinical documents based on the HL7 Clinical Document Architecture. PMID:17911720

Emelin, Ivan V; Eltchiyan, Radik A

2007-01-01

232

Corporate Portals for Supply Chain Collaboration  

Microsoft Academic Search

This article reviews the technological capabilities offered by the portal industry's key software vendors to support inter-firm design collaboration and supply chain integration. An analysis of the technology coverage and gaps is presented, with a focus on the opportunities available for portal software improvement. Challenges for collaboration and supply chain software, including security, external access and capabilities, bandwidth and communication

Scott Paquette; Linda Moffat

2005-01-01

233

Building employer credibility in corporate intranet portals  

Microsoft Academic Search

This paper presents the role of intranet portals in creating the brand of employer as a trustful and credible partner for the employees -- intranet users. Survey results showing the usage of intranets in Polish companies have been presented as a starting point for developing research agenda and guidelines for building employer brand and credibility in intranet portals. Presented guidelines

Marcin Sikorski

2006-01-01

234

Modified Anterior Portal for Hip Arthroscopy  

PubMed Central

Routine portal placement for the central compartment should be based on minimizing iatrogenic injury and maximizing access. Anchor placement for labral repair/refixation requires a more distal entry position to accomplish sufficient divergence to avoid perforating the articular surface of the acetabulum. If a standard portal for joint access is moved more distal, this can compromise its utility for addressing intra-articular pathology. In addition, it can be difficult to position this portal sufficiently distally to ensure adequate divergence. Moving the anchor away from the rim to avoid perforation, due to suboptimal portal placement, can result in nonanatomic labral repair. Thus a percutaneous anchor delivery system is advantageous in ensuring adequate divergence without compromising routine portal placement for the central compartment.

Thomas Byrd, J.W.

2013-01-01

235

Straddle carrier radiation portal monitoring  

NASA Astrophysics Data System (ADS)

U.S. Customs and Border Protection (CBP) is the primary enforcement agency protecting the nation"s ports of entry. CBP is enhancing its capability to interdict the illicit import of nuclear and radiological materials and devices that may be used by terrorists. Pacific Northwest National Laboratory (PNNL) is providing scientific and technical support to CBP in their goal to enable rapid deployment of nuclear and radiation detection systems at U. S. ports of entry to monitor 100% of the incoming international traffic and cargo while not adversely impacting the operations or throughput of the ports. The U.S. ports of entry include the following vectors: land border crossings, seaports, airports, rail crossings, and mail and express consignment courier facilities. U.S. Customs and Border Protection (CBP) determined that a screening solution was needed for Seaport cargo containers being transported by Straddle Carriers (straddle carriers). A stationary Radiation Portal Monitor (RPM) for Straddle Carriers (SCRPM) is needed so that cargo containers can be scanned while in transit under a Straddle Carrier. The Straddle Carrier Portal operational impacts were minimized by conducting a time-motion study at the Port, and adaptation of a Remotely Operated RPM (RO-RPM) booth concept that uses logical lighting schemes for traffic control, cameras, Optical Character Recognition, and wireless technology.

Andersen, Eric S.; Samuel, Todd J.; Mullen, O. Dennis

2005-05-01

236

Rethinking portal design: a case study on renewable energy research  

Microsoft Academic Search

The usability of Portal design has been criticized in previous studies. Portals tend to contain an overwhelming amount of information in a difficult to navigate form. This paper will present a new method of organizing a portal for supporting groups of researchers. The architecture for the portal is open and has been adopted for use on several different projects. It

Ian Douglas

2010-01-01

237

Ultrasound-Guided Establishment of Hip Arthroscopy Portals  

Microsoft Academic Search

We describe ultrasound-guided establishment of hip arthroscopy portals. The surface projections of anatomic structures around the hip joint (including the nerve, vessels, femoral neck, and acetabulum) were marked. The entry points were then planned for the anterolateral and anterior portals and, if necessary, the posterolateral portal. The anterolateral portal was first placed. Through the use of real-time ultrasound guidance, a

Yinghui Hua; Yongming Yang; Shiyi Chen; Yi Wang; Yunxia Li; Jiwu Chen; Hong Li

2009-01-01

238

Portal Vein Measurements by Real-Time Sonography  

Microsoft Academic Search

Real-time sonography affords a simple and reliable definition of the portal veins. A standard chart of normal portal vein measurements is presented. The mean diameter of the portal vein in 107 patients aged 21 -40 years was 1 1 ± 2 mm. This information can be useful in evaluating portal hypertension in a variety of clinical situations. Sonognaphy has been

Jeffrey Weinreb; Sheila Kumari; Gail Phillips; Rubem Pochaczevsky

239

A business-revenue model for horizontal portals  

Microsoft Academic Search

Purpose – Horizontal web portals fill an important place in the operation of the internet and this paper seeks to look at how these portals may become profitable. A portal is simply a gateway, and a web portal can thus be seen as a gateway to content and services on the internet, or on a corporate intranet. This paper aims

Stephen Burgess; Arthur Tatnall

2007-01-01

240

BSD Portals for LINUX 2.0  

NASA Technical Reports Server (NTRS)

Portals, an experimental feature of 4.4BSD, extend the file system name space by exporting certain open () requests to a user-space daemon. A portal daemon is mounted into the file name space as if it were a standard file system. When the kernel resolves a pathname and encounters a portal mount point, the remainder of the path is passed to the portal daemon. Depending on the portal "pathname" and the daemon's configuration, some type of open (2) is performed. The resulting file descriptor is passed back to the kernel which eventually returns it to the user, to whom it appears that a "normal" open has occurred. A proxy portalfs file system is responsible for kernel interaction with the daemon. The overall effect is that the portal daemon performs an open (2) on behalf of the kernel, possibly hiding substantial complexity from the calling process. One particularly useful application is implementing a connection service that allows simple scripts to open network sockets. This paper describes the implementation of portals for LINUX 2.0.

McNab, A. David; woo, Alex (Technical Monitor)

1999-01-01

241

Using the NASA Giovanni DICCE Portal to Investigate Land-Ocean Linkages with Satellite and Model Data  

NASA Technical Reports Server (NTRS)

Data-enhanced Investigations for Climate Change Education (DICCE), a NASA climate change education project, employs the NASA Giovanni data system to enable teachers to create climate-related classroom projects using selected satellite and assimilated model data. The easy-to-use DICCE Giovanni portal (DICCE-G) provides data parameters relevant to oceanic, terrestrial, and atmospheric processes. Participants will explore land-ocean linkages using the available data in the DICCE-G portal, in particular focusing on temperature, ocean biology, and precipitation variability related to El Ni?o and La Ni?a events. The demonstration includes the enhanced information for educators developed for the DICCE-G portal. The prototype DICCE Learning Environment (DICCE-LE) for classroom project development will also be demonstrated.

Acker, James G.; Zalles, Daniel; Krumhansl, Ruth

2012-01-01

242

Interest in the Use of Computerized Patient Portals: Role of the Provider-Patient Relationship  

PubMed Central

Background Bioinformatics experts are developing interactive patient portals to help those living with diabetes and other chronic diseases to better manage their conditions. However, little is known about what influences patients’ desires to use this technology. Objective To discern the impact of the provider–patient relationship on interest in using a web-based patient portal. Design Qualitative analysis of focus groups. Participants Ten focus groups involving 39 patients (range 2–7) recruited from four primary care practices. Approach A qualitative approach was used, which involved reading transcribed texts until a consensus was reached on data interpretation. An intercoder reliability kappa score (0.89) was determined by comparing the provider–patient relationship talk selected by the two coders. A conceptual framework was developed, which involved the development and refinement of a codebook and the application of it to the transcripts. Results Interest in the portal was linked to dissatisfaction with the provider–patient relationship, including dissatisfaction with provider communication/responsiveness, the inability to obtain medical information, and logistical problems with the office. Disinterest in the portal was linked to satisfaction with the provider–patient relationship, including provider communication/responsiveness, difficulty in using the portal, and fear of losing relationships and e-mail contact with the provider. No patient identified encrypted e-mail communication through the portal as an advantage. Conclusions Promoting the use of computerized portals requires patient-based adaptations. These should include ease of use, direct provider e-mail, and reassurances that access and interpersonal relationships will not be lost. Education is needed about privacy concerns regarding traditional e-mail communication.

Hess, Rachel; Bryce, Cindy L.; McTigue, Kathleen; Olshansky, Ellen; Fitzgerald, Katharine; Fischer, Gary S.

2007-01-01

243

The impact of numeracy ability and technology skills on older adults' performance of health management tasks using a patient portal.  

PubMed

Patient portals, which allow patients to access their health record via the Internet, are becoming increasingly widespread and are expected to be used by diverse consumer populations. In addition to technology skills, numeracy skills are also likely to be critical to performing health management tasks, as much of the data contained in the portal are numeric. This study examined how factors such as Internet experience, numeracy, and education impacted the performance of common tasks using a simulated patient portal among a sample of older adults. In addition, information was gathered on the ability of older adults to estimate their numeracy skills. Results indicated that numeracy and Internet experience had a significant impact on their ability to perform the tasks and that older adults tended to overestimate their numeracy skills. Results from this study can help to identify interventions that may enhance the usability of patient portals for older adults. PMID:24781964

Taha, Jessica; Sharit, Joseph; Czaja, Sara J

2014-06-01

244

29 CFR 790.5 - Effect of Portal-to-Portal Act on determination of hours worked.  

Code of Federal Regulations, 2010 CFR

...2009-07-01 2009-07-01 false Effect of Portal-to-Portal Act on determination of hours worked. 790.5 ...REGULATIONS GENERAL STATEMENT AS TO THE EFFECT OF THE PORTAL-TO-PORTAL ACT OF 1947 ON THE FAIR LABOR...

2009-07-01

245

29 CFR 790.5 - Effect of Portal-to-Portal Act on determination of hours worked.  

Code of Federal Regulations, 2013 CFR

...2013-07-01 2013-07-01 false Effect of Portal-to-Portal Act on determination of hours worked. 790.5 ...REGULATIONS GENERAL STATEMENT AS TO THE EFFECT OF THE PORTAL-TO-PORTAL ACT OF 1947 ON THE FAIR LABOR...

2013-07-01

246

29 CFR 790.5 - Effect of Portal-to-Portal Act on determination of hours worked.  

Code of Federal Regulations, 2010 CFR

...2010-07-01 2010-07-01 false Effect of Portal-to-Portal Act on determination of hours worked. 790.5 ...REGULATIONS GENERAL STATEMENT AS TO THE EFFECT OF THE PORTAL-TO-PORTAL ACT OF 1947 ON THE FAIR LABOR...

2010-07-01

247

The Astrostatistics and Astroinformatics Portal  

NASA Astrophysics Data System (ADS)

The Astrostatistics and Astroinformatics Portal (ASAIP, http://asaip.psu.edu) is a Web resource started in 2012 to foster research into advanced methodologies for astronomical research, and to promulgate such methods into the broader astronomy community. It provides searchable abstracts to Recent Papers in the field, several discussion Forums, various resources for researchers, brief Articles by experts, lists of Meetings, and access to various Web resources such as on-line courses, books and blogs. The material can be electronically searched. The site will be used for public outreach by organizations associated with the AAS, IAU, ISI (International Statistical Institute), and LSST. ASAIP has nearly 700 members who can contribute material, and its resources are readable by the general Web public. This presentation gives examples of recent ASAIP entries and encourages AAS members to use its resources.

Feigelson, Eric; Hilbe, J. M.

2014-01-01

248

The seed proteome web portal.  

PubMed

The Seed Proteome Web Portal (SPWP; http://www.seed-proteome.com/) gives access to information both on quantitative seed proteomic data and on seed-related protocols. Firstly, the SPWP provides access to the 475 different Arabidopsis seed proteins annotated from two dimensional electrophoresis (2DE) maps. Quantitative data are available for each protein according to their accumulation profile during the germination process. These proteins can be retrieved either in list format or directly on scanned 2DE maps. These proteomic data reveal that 40% of seed proteins maintain a stable abundance over germination, up to radicle protrusion. During sensu stricto germination (24?h upon imbibition) about 50% of the proteins display quantitative variations, exhibiting an increased abundance (35%) or a decreasing abundance (15%). Moreover, during radicle protrusion (24-48?h upon imbibition), 41% proteins display quantitative variations with an increased (23%) or a decreasing abundance (18%). In addition, an analysis of the seed proteome revealed the importance of protein post-translational modifications as demonstrated by the poor correlation (r(2)?=?0.29) between the theoretical (predicted from Arabidopsis genome) and the observed protein isoelectric points. Secondly, the SPWP is a relevant technical resource for protocols specifically dedicated to Arabidopsis seed proteome studies. Concerning 2D electrophoresis, the user can find efficient procedures for sample preparation, electrophoresis coupled with gel analysis, and protein identification by mass spectrometry, which we have routinely used during the last 12?years. Particular applications such as the detection of oxidized proteins or de novo synthesized proteins radiolabeled by [(35)S]-methionine are also given in great details. Future developments of this portal will include proteomic data from studies such as dormancy release and protein turnover through de novo protein synthesis analyses during germination. PMID:22701460

Galland, Marc; Job, Dominique; Rajjou, Loïc

2012-01-01

249

Improved body mass index after mesenterico-portal bypass  

Microsoft Academic Search

Extrahepatic portal hypertension in children secondary to portal vein obstruction is frequently associated with impaired somatic\\u000a growth. The aim of this study was to assess growth and nutritional status, as reflected by the body mass index (BMI), before\\u000a and after mesenterico-portal bypass (Rex shunt). Eleven children with a portal vein cavernoma underwent mesenterico-portal\\u000a bypass using autologous jugular vein. All shunts

Mark D. Stringer

2007-01-01

250

Zolmitriptan: A Novel Portal Hypotensive Agent Which Synergizes with Propranolol in Lowering Portal Pressure  

PubMed Central

Objective Only a limited proportion of patients needing pharmacological control of portal hypertension are hemodynamic responders to propranolol. Here we analyzed the effects of zolmitriptan on portal pressure and its potential interaction with propranolol. Methods Zolmitriptan, propranolol or both were tested in two rat models of portal hypertension: common bile duct ligation (CBDL) and CCl4-induced cirrhosis. In these animals we measured different hemodynamic parameters including portal venous pressure, arterial renal flow, portal blood flow and cardiac output. We also studied the changes in superior mesenteric artery perfusion pressure and in arterial wall cAMP levels induced by zolmitriptan, propranolol or both. Moreover, we determined the effect of splanchnic sympathectomy on the response of PVP to zolmitriptan. Results In both models of portal hypertension zolmitriptan induced a dose-dependent transient descent of portal pressure accompanied by reduction of portal flow with only slight decrease in renal flow. In cirrhotic rats, splanchnic sympathectomy intensified and prolonged zolmitriptan-induced portal pressure descent. Also, propranolol caused more intense and durable portal pressure fall when combined with zolmitriptan. Mesenteric artery perfusion pressure peaked for about 1 min upon zolmitriptan administration but showed no change with propranolol. However propranolol enhanced and prolonged the elevation in mesenteric artery perfusion pressure induced by zolmitriptan. In vitro studies showed that propranolol prevented the inhibitory effects of ?2-agonists on zolmitriptan-induced vasoconstriction and the combination of propranolol and zolmitriptan significantly reduced the elevation of cAMP caused by ?2-agonists. Conclusion Zolmitriptan reduces portal hypertension and non-selective beta-blockers can improve this effect. Combination therapy deserves consideration for patients with portal hypertension failing to respond to non-selective beta-blockers.

Reboredo, Mercedes; Chang, Haisul C. Y.; Barbero, Roberto; Rodriguez-Ortigosa, Carlos M.; Perez-Vizcaino, Francisco; Moran, Asuncion; Garcia, Monica; Banales, Jesus M.; Carreno, Norberto; Alegre, Felix; Herrero, Ignacio; Quiroga, Jorge

2013-01-01

251

Portal hipertansiyonun intestinal bariyer üzerine etkisi Effect of portal hypertension on intestinal barrier  

Microsoft Academic Search

5 Giri? ve amaç: Portal hipertansiyon splanknik dola?›mda belirgin hemodinamik de?i?ikliklere neden olmaktad›r. Güçlü bir mediatör olan nitrik oksit fonksiyonel mukozal bütünlü?ün korunmas›na katk›da bulunmakla birlikte paradoks etki de gösterebilir. Çal›?mam›z›n amac› portal ven daralt›lmas› ile olu?turulan portal hipertansiyon sonucunda sindirim kanal›nda ortaya ç›kan histopatolojik de?i?iklikleri incelemek; portal hipertansiyon ve nitrik oksit doku konsantrasyonunun bakteriyel translokasyon üzerine olan etkisini ara?t›rmakt›r.

Murat ZEYTUNLU; Murat KILIÇ; Mustafa KORKUT; Murat ALKANAT; Anabilim Dali

252

The Fukushima Daiichi Accident Study Information Portal  

SciTech Connect

This paper presents a description of The Fukushima Daiichi Accident Study Information Portal. The Information Portal was created by the Idaho National Laboratory as part of joint NRC and DOE project to assess the severe accident modeling capability of the MELCOR analysis code. The Fukushima Daiichi Accident Study Information Portal was created to collect, store, retrieve and validate information and data for use in reconstructing the Fukushima Daiichi accident. In addition to supporting the MELCOR simulations, the Portal will be the main DOE repository for all data, studies and reports related to the accident at the Fukushima Daiichi nuclear power station. The data is stored in a secured (password protected and encrypted) repository that is searchable and accessible to researchers at diverse locations.

Shawn St. Germain; Curtis Smith; David Schwieder; Cherie Phelan

2012-11-01

253

23. INCLINED END POST / VERTICAL / DIAGONAL / PORTAL ...  

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

23. INCLINED END POST / VERTICAL / DIAGONAL / PORTAL BRACING DETAIL. VIEW TO SOUTHEAST. - Abraham Lincoln Memorial Bridge, Spanning Missouri River on Highway 30 between Nebraska & Iowa, Blair, Washington County, NE

254

Arthroscopy of the hip. Anatomy and portals.  

PubMed

Establishing the three portals for hip arthroscopy in the correct sequence is crucial, as is use of the image intensifier for location and passage of needles. Patient position for hip arthroscopy can be either lateral decubitus or supine. Gentle techniques are essential to avoid scuffing of the articular surface. The 70 degrees scope is the "workhorse" in this procedure. Location of portals is essential to successful hip arthroscopy. PMID:11675881

Sweeney, H J

2001-10-01

255

[Gastric mucosa injuries in portal hypertension].  

PubMed

Portal Hypertension (PH) was diagnosed in 114/4145 patients (p) evaluated by upper gastrointestinal endoscopy during 1991-92 (2.75%). Portal hypertensive gastropathy (PHG) was found in 39.47% p. Mild PHG was observed in 82.22% and esophageal varices grade was directly correlated to PHG presence. This is a new entity to be considered because of its bleeding possibility in PH patients. PMID:8050702

Piñero, R; Urquiola, G; Yaraure, M; Pacheco, M; Poleo, J R

1993-01-01

256

Server selection methods in hybrid portal search  

Microsoft Academic Search

The TREC.GOV collection makes a valuable web testbed for distributed information retrieval methods because it is naturally partitioned and includes 725 web-oriented queries with judged answers. It can usefully model aspects of government and large corporate portals. Analysis of the.gov data shows that a purely distributed approach would not be feasible for providing search on a.gov portal because of the

David Hawking; Paul Thomas

2005-01-01

257

Portal vein complications after pediatric liver transplantation.  

PubMed

Relatively few pediatric donors are available in relation to the number of children waiting for a liver transplant. This limited number of pediatric donor livers leads to the use of adult livers, usually requiring more complex portal vein (PV) anastomoses. These anastomoses are complicated by differences in PV caliber between donors and recipients, as well as by limitations of PV length, which may be inadequate to reach the recipient spleno-mesenteric junction. Three types of post-transplant complications result from these complexities: 1) anomalies of the portal flow; 2) stenosis of the PV anastomosis; and 3) PV thrombosis. Abnormal portal flow may rarely need a specific intervention, but persistent stenosis or appearance of signs of portal hypertension need to be corrected. Balloon dilatation and placement of a stent are usually successful to repair stenosis. Portal vein thromboses are in general diagnosed in the immediate post-operative period and frequently lead to re-transplantation; however, thrombolytic therapy should be attempted in children without major signs of liver necrosis. When intra-hepatic portal vein(s) are permeable, despite extrahepatic PV thrombosis, a Meso-Rex shunt may be the indicated therapy. PMID:22434261

Alvarez, Fernando

2012-06-01

258

Portal to Asian Internet Resources  

NSDL National Science Digital Library

Designed as a cooperative project between The Ohio State University Libraries, the University of Minnesota Libraries, and the University of Wisconsin Libraries, the Portal to Asian Internet Resources (PAIR) provides a "user-friendly, searchable catalog through which scholars, students and the general public have quick and easy access to high quality Web resources originating in Asia identified, evaluated, selected and catalogued by library specialists." These resources themselves are from a variety of sources, such as those from various academic institutions, units of governance, and different non-governmental entities. The available catalogued web resources are in English and/or one of 27 Asian languages, and are selected on the basis of quality criteria such as "accuracy, authority, uniqueness, currency, relevance to scholarly research," and so on. It's quite easy to use the site, as visitors can move their cursor over an interactive map of Asia, and click on a country of interest. Additionally, they may elect to select one of the countries covered by PAIR from a list located on the site's homepage.

259

The ENSEMBLES Statistical Downscaling Portal  

NASA Astrophysics Data System (ADS)

The demand for high-resolution seasonal and ACC predictions is continuously increasing due to the multiple end-user applications in a variety of sectors (hydrology, agronomy, energy, etc.) which require regional meteorological inputs. To fill the gap between the coarse-resolution grids used by global weather models and the regional needs of applications, a number of statistical downscaling techniques have been proposed. Statistical downscaling is a complex multi-disciplinary problem which requires a cascade of different scientific tools to access and process different sources of data, from GCM outputs to local observations and to run complex statistical algorithms. Thus, an end-to-end approach is needed in order to link the outputs of the ensemble prediction systems to a range of impact applications. To accomplish this task in an interactive and user-friendly form, a Web portal has been developed within the European ENSEMBLES project, integrating the necessary tools and providing the appropriate technology for distributed data access and computing. In this form, users can obtain their downscaled data testing and validating different statistical methods (from the categories weather typing, regression or weather generators) in a transparent form, not worrying about the details of the downscaling techniques and the data formats and access.

Cofino, Antonio S.; San-Martín, Daniel; Gutiérrez, Jose M.

2010-05-01

260

Hepatic fat accumulation with sparing associated with portal vein duplication.  

PubMed

Duplication of the portal vein is a rare congenital anomaly. We experienced a case of duplication of the portal vein associated with hepatic fat accumulation with sparing. Fat accumulation was seen in the central portion of the liver, which was supplied by the portal vein coursing upward to the porta hepatis (Portal Vein 2), and sparing of fatty liver was seen in the peripheral portion of the liver, which was supplied by the portal vein entering the liver inferiorly (Portal Vein 1). PMID:24679652

Yang, Dal Mo; Kim, Hyun Cheol; Kim, Sang Won

2014-01-01

261

Non-cirrhotic portal vein thrombosis, an uncommon cause of portal hypertension - a case report.  

PubMed

Most cases of portal hypertension follow chronic liver disease (cirrhosis) while non cirrhotic causes are occasionally seen. A case of portal hypertension secondary to non-cirrhotic portal vein thrombosis is reported. The patient was managed at the Aminu Kano Teaching Hospital Kano, Nigeria in the year 2006. She presented with recurrent massive upper gastrointestinal bleeding and was resuscitated, followed by clinical, radiological and endoscopic evaluation. She had massive splenomegaly and grade four oesophageal varices with evidence of recent bleed. There were, however, no other stigmata of chronic liver disease or portal hypertension. Abdominal computed tomography scan confirmed portal vein thrombosis. Splenectomy and ligation of short gastric veins was performed and the patient has not had any repeat episode of haematemesis or malaena six months post surgery. PMID:18163151

Tijjani, B M; Borodo, M M; Samaila, A A; Tabari, M; Alhassan, S U

2007-12-01

262

VisEL: Visualisation of Expertise Level in a Special Interest Group Knowledge Portal  

Microsoft Academic Search

A variety of portals are available nowadays to support diverse purposes such as commercial, publishing, personal, affinity and corporate portals. Affinity portals promote electronic communities who share common interest such as a special interest group (SIG). Knowledge portal is an emerging trend that benefits the existing portal technology by designing such portals with proper representation of the members' shared knowledge.

Wan Muhammad Zulhafizsyam Wan Ahmad; Shahida Sulaiman; Umi Kalsom Yusof

2009-01-01

263

Education.  

ERIC Educational Resources Information Center

The year 1978 marked a downward trend in geoscience education. Lobbying for geoscience education should be encouraged. Among the year's developments were the publishing of textbooks on historical geology and geomorphology. (BB)

O'Connor, J. V.; Withington, Charles F.

1979-01-01

264

Education.  

National Technical Information Service (NTIS)

The education industry is critical to US national security and economic well-being. Our assessment of the industry produced mixed results with positives in educational opportunities and numbers of students attending college, and negatives in comparative i...

B. Al Baram D. Alberto J. Collins T. M. Conte S. Dueker

2005-01-01

265

The MISTRALS programme data portal  

NASA Astrophysics Data System (ADS)

Mediterranean Integrated STudies at Regional And Local Scales (MISTRALS) is a decennial programme for systematic observations and research dedicated to the understanding of the Mediterranean Basin environmental process and its evolution under the planet global change. It is composed of eight multidisciplinary projects that cover all the components of the Earth system (atmosphere, ocean, continental surfaces, lithosphere...) and their interactions, many disciplines (physics, chemistry, marine biogeochemistry, biology, geology, sociology...) and different time scales. For example Hydrological cycle in the Mediterranean eXperiment (HyMeX) aims at improving the predictability of rainfall extreme events, and assessing the social and economic vulnerability to extreme events and adaptation capacity, and Paleo Mediterranean Experiment (PaleoMeX) is dedicated to the study of the interactions between climate, societies and civilizations of the Mediterranean world during the last 10000 years. Many long term monitoring research networks are associated with MISTRALS, like Mediterranean Ocean Observing System on Environment (MOOSE), Centre d'Observation Régional pour la Surveillance du Climat et de l'environnement Atmosphérique et océanographique en Méditerranée occidentale (CORSICA) and the environmental observations from Mediterranean Eurocentre for Underwater Sciences and Technologies (MEUST-SE). Therefore, the data generated or used by the different MISTRALS projects are very heterogeneous. They include in situ observations, satellite products, model outputs, qualitative field surveys... Some datasets are automatically produced by operational networks, and others come from research instruments and analysis procedures. They correspond to different time scales (historical time series, observatories, campaigns...) and are managed by different data centres. They originate from many scientific communities, with varied data sharing cultures, specific expectations, and using different file formats and data processing tools. The MISTRALS data portal - http://mistrals.sedoo.fr/ - has been designed and developed as a unified tool to share scientific data in spite of many sources of heterogeneity, and to foster collaboration between research communities. The metadata (data description) are standardized and comply with international standards (ISO 19115-19139; INSPIRE European Directive; Global Change Master Directory Thesaurus). A search tool allows to browse the catalogue by keyword or by multicriteria selection (location, period, physical property...) and to access data. Data sets managed by different data centres (ICARE, IPSL, SEDOO, CORIOLIS) are available through interoperability protocols (OPeNDAP, xml requests...) or archive synchronisation. At present the MISTRALS data portal allows to access more than 400 datasets and counts more than 500 registered users. The number of available datasets is increasing daily, due to the provision of campaign datasets (2012, 2013) by several projects. Every in situ data set is available in the native format, but the favorite data sets have been homogenized (property names, units, quality flags...) and inserted in a relational database, in order to enable more accurate data selection, and download of different datasets in a shared format. Every scientist is invited to make use of the different MISTRALS tools and data. Do not hesitate to browse the catalogue and fill the online registration form. Feel free to contact mistrals-contact@sedoo.fr for any question.

Fleury, Laurence; Brissebrat, Guillaume; Belmahfoud, Nizar; Boichard, Jean-Luc; Brosolo, Laetitia; Cloché, Sophie; Descloitres, Jacques; Ferré, Hélène; Focsa, Loredana; Labatut, Laurent; Mastrorillo, Laurence; Mière, Arnaud; Petit de la Villéon, Loïc; Ramage, Karim; Schmechtig, Catherine

2014-05-01

266

[Regional portal hypertension revealing malignant adrenal cortical carcinoma].  

PubMed

The authors report a rare case of regional portal hypertension secondary to splenic vein obstruction by left adrenal carcinoma metastasis. They review the principal literature data concerning regional portal hypertension and adrenal cortical carcinoma. PMID:1639890

Mhiri, M N; Trifa, M; Sellami, M; Mhiri, C; Letaief, Y; Souissi, T

1992-03-01

267

Healthcare information portal: a web technology for the healthcare community  

Microsoft Academic Search

Telemedicine technology already provides tremendous social benefits. A comprehensive, Web-based healthcare information portal would be a major further advancement. This article discusses the need for developing such a portal, proposes a framework, and analyses its benefits and challenges.

David C. Chou; Amy Y. Chou

2002-01-01

268

Detail of upper chord connection at portal, showing alterations made ...  

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

Detail of upper chord connection at portal, showing alterations made to portal strut (left), view to south - Gillespie Dam Bridge, Spanning Gila River on Old US 80 Highway, south of Gillespie Dam, Arlington, Maricopa County, AZ

269

341. Caltrans, Photographer October 14, 1935 "TUNNEL WEST PORTAL"; ...  

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

341. Caltrans, Photographer October 14, 1935 "TUNNEL - WEST PORTAL"; VIEW OF TUNNEL - WEST PORTAL WITH CARS ON BRIDGE. - San Francisco Oakland Bay Bridge, Spanning San Francisco Bay, San Francisco, San Francisco County, CA

270

13. Detail, connection point of end post, top chord, portal ...  

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

13. Detail, connection point of end post, top chord, portal strut, and tension members at upstream side of west portal, view to northwest. - Dry Creek Bridge, Spanning Dry Creek at Cook Road, Ione, Amador County, CA

271

43. VIEW OF THE RAMP ABOVE LOWER PORTAL AND RAMP, ...  

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

43. VIEW OF THE RAMP ABOVE LOWER PORTAL AND RAMP, LOOKING NORTHWEST. THE RAMP WAS USED TO GUIDE RUN-OFF FROM THUNDERSTORMS AWAY FROM THE PORTAL. - Independent Coal & Coke Company, Kenilworth, Carbon County, UT

272

Top Ten Questions To Design A Successful Grid Portal  

Microsoft Academic Search

With the enhancement of Grid applications, Grid portals provide a useful interface for end-users to access distributed resources and are used widely in Knowledge Grids, e-Science, e-Learning and e- Business. The success of a Grid portal relies on many factors. This paper focuses primarily on the design aspects of a successful Grid portal implementation. Ten questions on designing Grid portals

Xiao Dong Wang; Xiaobo Yang; Rob Allan

2006-01-01

273

E-health web portals: delivering holistic healthcare and making home the point of care.  

PubMed

E-health delivers healthcare services and education, via a Web portal, to older persons with chronic conditions and their caregivers and enables the patient's home to be the point of care. This growing industry is ripe for exploration by nurses who can empower the patient and caregiver to gain self-care and coping skills. Advances in information technology now make this dream a reality. PMID:16006829

Moody, Linda E

2005-01-01

274

User Needs of Digital Service Web Portals: A Case Study  

ERIC Educational Resources Information Center

The authors examined the needs of digital information service web portal users. More specifically, the needs of Korean cultural portal users were examined as a case study. The conceptual framework of a web-based portal is that it is a complex, web-based service application with characteristics of information systems and service agents. In…

Heo, Misook; Song, Jung-Sook; Seol, Moon-Won

2013-01-01

275

13. Detail of west side of southwest portal showing the ...  

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

13. Detail of west side of southwest portal showing the latticed top chord rivet-connected to the latticed inclined end post and the portal strut; also shown is the webbed portal bracing and the top lateral bracing with the pin connection of the hip vertical and the diagonal. - Post Road Bridge, State Route 7-A, Havre de Grace, Harford County, MD

276

Introducing Evolution Management for the Corporate Financial Portal  

Microsoft Academic Search

Software evolution is an essential concept underlying the engineering of corporate portals. Due to the complexity of such systems, it requires great effort and is not advisable to design and implement a feature-complete corporate solution. The concept of evolutionary portal development helps portal engineers to cope with design complexity. While the technical perspective on component based software development and evolution

Hong Tuan; Kiet Vo; Helmuth Elsner

277

Medical Portals: Web-based Access to Medical Information  

Microsoft Academic Search

Public portals, such as Web search engines, have been available for a number of years and corporate portals that facilitate access to enterprise information within a company, normally through the Web, have been available for the last few years. Such portals are made up of \\

Michael A. Shepherd; David Zitner; Carolyn R. Watters

2000-01-01

278

MATCHING THE REVENUE MODEL AND CONTENT OF HORIZONTAL PORTALS  

Microsoft Academic Search

A simple definition of a portal describes it simply as a gateway, and a Web portal as a gateway to a corporate intranet or to the Internet. In this paper we will compare a number of differing views of what constitutes a portal, and offer a definition of our own. There are also several different categorisations used to describe the

Stephen Burgess; Scott Bingley; Arthur Tatnall

279

MagPortal: Magazine Articles on Business  

NSDL National Science Digital Library

MagPortal has compiled this online collection of business articles on a variety of subjects. The sixteen subcategories include Diversity, Future Trends, Industries, Small Business, and Strategies and Management. The articles are current to the month and annotated, including date of article, author, title, and a brief description. Small yellow and orange icons allow users to mark articles and to retrieve related articles in other categories. Clicking on the article title takes users to the original publication. Articles from previous months may be accessed through the MagPortal archive linked at the bottom of each section.

280

Patient Web Portals to Improve Diabetes Outcomes: A Systematic Review  

PubMed Central

Patient web portals (PWPs), defined as the integration of electronic medical records and patient health records, have been related to enhanced patient outcomes. A literature review was conducted to characterize the design and evaluation of PWPs to improve health care processes and outcomes in diabetes. A summary of 26 articles revealed the positive impact PWPs have on patient outcomes, patient-provider communication, disease management, and access to and patient satisfaction with health care. Innovative and useful approaches included the evaluation of specific components of the PWPs, assessing the impact of PWPs on mediators of health behaviors, such as patient distress, identification of barriers to use, and patient willingness to pay for access. Future research should focus on relevant processes that mediate patient and provider use, impact on health care utilization, and a patient-centered approach to the design and integration of educational opportunities afforded through PWPs.

Mayberry, Lindsay Satterwhite; Mulvaney, Shelagh A.; Hess, Rachel

2011-01-01

281

Earth System Science Informal Education Network (ESSIEN)  

NSDL National Science Digital Library

The Earth System Science Informal Education Network (ESSIEN) is dedicated to improving Earth system literacy through increased communication and collaboration among providers of informal Earth system education. The collection is designed for museum professionals (educators, exhibits designers, developers) as a resource of ideas, tools, traveling exhibits and online materials. The resources are web portals to organizations providing substantial informal Earth system science education. They describe educational programming, resources and exhibits that are pertinent to an informal educator.

2007-04-03

282

Earth System Science Informal Education Network (ESSIEN)  

NSDL National Science Digital Library

The Earth System Science Informal Education Network (ESSIEN) is dedicated to improving Earth system literacy through increased communication and collaboration among providers of informal Earth system education. The collection is designed for museum professionals (educators, exhibits designers, developers) as a resource of ideas, tools, traveling exhibits and online materials. The resources are web portals to organizations providing substantial informal Earth system science education. They describe educational programming, resources and exhibits that are pertinent to an informal educator.

283

Colorectal variceal bleeding in patients with extrahepatic portal vein thrombosis and idiopathic portal hypertension.  

PubMed

We report three patients with colonic variceal bleeding secondary to portal hypertension, 0.5% of all cases with hemorrhagic portal hypertension studied by us in the last 16 years. One patient had idiopathic portal hypertension, and the others had extrahepatic portal vein thrombosis. Colonic varices were documented in all three cases by angiogram; large arteriovenous fistulas in the territory of the superior mesenteric artery and between the inferior mesenteric artery and hemorrhoidal veins were demonstrated in one patient. Two patients underwent colonoscopy; colonic varices were seen in only one. Two patients also had bled from esophagogastric varices. One patient underwent descending colon and sigmoid resection after failure to control bleeding with ligation of arterial supply; one patient underwent the Sugiura procedure, plus transanal ligation of hemorrhoids and rectal varices. At 3 months, 2 years, and 4 years of follow-up, the patients were in good general condition without any evidence of rebleeding. PMID:1556427

Orozco, H; Takahashi, T; Mercado, M A; Prado-Orozco, E; Ferral, H; Hernandez-Ortiz, J; Esquivel, E

1992-03-01

284

Astronomia.pl: Portal activity in 2006-2007  

NASA Astrophysics Data System (ADS)

We present the latest activity of Astronomia.pl - the Polish Astronomy Portal, the most popular internet portal about astronomy in Poland. Astronomia.pl is a wide-ranging portal, covering news, a database of articles, books, lectures, an astronomical calendar, a newsletter, a virtual library of diploma theses, a discussion forum, chat, galleries, a catalogue of websites and other services. The portal also owns several additional services like an on-line lexicon with biographies of astronomers, a website about Polish planetariums and a server for websites created by astronomy amateurs. There is also small part of the portal in English.

Czart, K.; Pomierny, J.

2008-06-01

285

Portal vein involvement in hepatocellular carcinoma: dynamic CT features  

SciTech Connect

The authors conducted a retrospective examination of 62 hepatocellular carcinomas, taking dynamic CT scans of selected sections after an intravenous contrast bolus. The proximal portal vein was involved in 40% of cases and distal segment in 16%. Angiographic correlation was available in 23 patients. The characteristic appearance of tumor within the portal vein was noted in many cases; in others, distinction between tumor and bland thrombus could not be made. Peripheral portal vein obstruction was suggested when a small, hypervascular tumor became hypodense during the portal phase of CT. The frequency and significance of these CT signs of portal vein involvement are discussed.

Mathieu, D.; Grenier, P.; Larde, D.; Vasile, N.

1984-07-01

286

Effects of somatostatin and octreotide on portal-systemic collaterals in portal hypertensive rats  

Microsoft Academic Search

Background\\/Aims: Somatostatin and its long-acting analogue, octreotide, have been used to cease variceal bleeding with uncertain mechanisms. This study investigated whether somatostatin and octreotide have a direct vasoconstrictive effect on the portal-systemic collaterals of portal-hypertensive rats and potentiate the vasoconstriction induced by endothelin-1 in these vascular beds.Methods: The vascular responses of collateral vessels to graded concentrations of somatostatin (10?9–10?5 mol\\/l),

Hui-Chun Huang; Fa-Yauh Lee; Che-Chang Chan; Full-Young Chang; Sun-Sang Wang; Han-Chieh Lin; Ming-Chih Hou; Chien-Ting Chen; Chun-Ching Tai; I-Nien Lai; Shou-Dong Lee

2002-01-01

287

Portal inflow preservation during portal diversion in small-for-size syndrome  

PubMed Central

AIM: To investigate the impact of portal inflow on liver remnants in a stable pig model of small-for-size syndrome. METHODS: Twenty pigs underwent mesocaval shunt (MCS) surgery followed by 85%-90% hepatectomy. The control group had no shunt placement; the S1 group had portal flow maintained at an average of 2.0 times the baseline values; and the S2 group had portal flow maintained at an average of 3.2 times the baseline flow. The effect of portal functional competition on the liver remnant was investigated for 48 h postoperatively. Data were presented as mean ± SD. Statistical significance was determined using Student’s t test (SPSS, Chicago, IL, United States). Values of P < 0.05 were considered statistically significant. RESULTS: At 24 h after hepatectomy, biochemical and histological changes were not significantly different between the S1 and S2 groups, but changes in both sets of variables were significantly less than in the control group. At 48 h, biochemical and histological changes were significantly less in the S2 group than in the S1 or control group. The regeneration index was significantly higher in the S2 group than in the S1 group, and was similar to that in the control group. Apoptosis index, serum lipopolysaccharide, and bacterial DNA levels were significantly lower in the S2 group than in the other two groups. CONCLUSION: Diversion of portal inflow using MCS reduces portal overflow injury. Excessive diversion of portal inflow inhibits liver regeneration following major hepatectomy. Maintaining portal inflow at an average of 3.2 times above baseline helps promote hypertrophy of the liver remnant and reduce apoptosis.

Wang, Xian-Qiang; Xu, Yue-Fang; Tan, Jing-Wang; Lv, Wen-Ping; Liu, Zhe; Zeng, Jian-Ping; Dong, Jia-Hong

2014-01-01

288

Hepatocellular Carcinoma Invading the Main Portal Vein: Treatment with Transcatheter Arterial Chemoembolization and Portal Vein Stenting  

Microsoft Academic Search

To retrospectively analyze the therapeutic results of percutaneous transhepatic portal vein stenting (PTPVS) and transcatheter\\u000a arterial chemoembolization (TACE) treatment in 58 patients with hepatocellular carcinoma (HCC) invading the main portal vein\\u000a (MPV). A total of 58 procedures of PTPVS were performed, immediately after which TACE was undertaken to control HCC. The clinical\\u000a effects, complications, digital subtraction angiographic appearance, stent patency

Xue-Bin Zhang; Jian-Hua Wang; Zhi-Ping Yan; Sheng Qian; Rong Liu

2009-01-01

289

MathNEXUS: Mathematics Portal  

NSDL National Science Digital Library

This collection of mathematics resources and project activities, produced by a partnership between Western Washington University, Skagit Valley College, Whatcom Community College, and adjacent school districts, spans K-14 education levels and showcases innovative ideas in math pegadogy as well as a range of learning material for students. The partnership is dedicated to increasing mathematics achievement levels for all students and narrowing differences between diverse student populations.

2006-09-24

290

Usability guidelines for designing mobile learning portals  

Microsoft Academic Search

Mobile learning presumes the use of mobile Internet technology to facilitate the learning process. The growth and rapid evolution of the wireless technology have created new opportunities for anytime and anywhere learning paradigm. As a result, numerous mobile learning portals have been developed to gain the advantages of it. Nonetheless, there is little research and exploration has been initiated in

Daniel Su Kuen Seong

2006-01-01

291

Children as Designers of Web Portals.  

ERIC Educational Resources Information Center

Describes the process undertaken by a design team comprising both elementary school students and researchers to design a Web portal intended for use by children. The approach adopted by the team was based upon several design theories related to usability studies: contextual inquiry, participatory design, and cooperative inquiry. Presents…

Large, Andrew; Beheshti, Jamshid; Nesset, Valerie; Bowler, Leanne

2003-01-01

292

Airport testing an explosives detection portal  

SciTech Connect

At the direction of the US Congress, following the Pan Am 103 and TWA 800 crashes, the Federal Aviation Administration funded development of non-invasive techniques to screen airline passengers for explosives. Such an explosives detection portal, developed at Sandia National Laboratories, was field tested at the Albuquerque International airport in September 1997. During the 2-week field trial, 2,400 passengers were screened and 500 surveyed. Throughput, reliability, maintenance and sensitivity were studied. Follow-up testing at Sandia and at Idaho National Engineering and Environmental Laboratory was conducted. A passenger stands in the portal for five seconds while overhead fans blow air over his body. Any explosive vapors or dislodged particles are collected in vents at the feet. Explosives are removed from the air in a preconcentrator and subsequently directed into an ion mobility spectrometer for detection. Throughput measured 300 passengers per hour. The non-invasive portal can detect subfingerprint levels of explosives residue on clothing. A survey of 500 passengers showed a 97% approval rating, with 99% stating that such portals, if effective, should be installed in airports to improve security. Results of the airport test, as well as operational issues, are discussed.

Rhykerd, C.; Linker, K.; Hannum, D.; Bouchier, F.; Parmeter, J.

1998-08-01

293

Cross-Cultural Dimensions of Internet Portals.  

ERIC Educational Resources Information Center

Discussion of cultural influences on new technologies focuses on an analysis of full-service national Web portals from different countries that investigated whether the adoption of new technologies resulted in cultural convergence or divergence. Results showed differences in appearance and features offered that can be attributed to cultural…

Zahir, Sajjad; Dobing, Brian; Hunter, M. Gordon

2002-01-01

294

Creative Problem-Solving Software and Portals  

ERIC Educational Resources Information Center

The available research dealing with information technology and creativity has been limited. There is an obvious need to explore this area. Fortunately there is some available software and portals that have undertaken this important topic. This research starts by discussing the value of information technology as a major input to sustain and…

Hijazi, Sam; Smith, M. Leigh; Alvarado-Vazquez, Edgardo

2004-01-01

295

Management of Extrahepatic Portal Hypertension in Children  

PubMed Central

Among 69 patients with PVT, 338 variceal bleeding episodes occurred. Only two patients died from bleeding, and both lived in remote communities and were inaccessible to medical care. Fifty-three children underwent 164 operations for the management of PVT. Once operative management was undertaken, subsequent operations frequently were necessary. Nonoperative measures controlled acute variceal hemorrhage in most instances during the past 10 years. Almost all patients who underwent splenectomy alone, variceal ligation, gastric division, splenic transposition, or makeshift shunts subsequently rebled. These operations are rarely indicated in the current management of children with PVT. Portal venography is essential to define the portal venous circulation before a shunt operation is attempted. Cavomesenteric or central splenorenal shunts prevented further bleeding in eight of 15 patients and are the most reliable operations to control bleeding in patients with PVT. Emergency operation is rarely necessary to control bleeding. Sixteen patients (average age 14.6 years) with PVT did not undergo any operations, and are alive. Each of the six patients with PVT who died from complications of portal hypertension did so within nine months of an operation. Four of these patients had previous splenectomy and died with sepsis as one of the major factors. Bleeding episodes became less frequent as the patients increased in age. Patients who underwent shunts under unfavorable circumstances or who received various other operations to treat portal hypertension appeared to have a higher risk of morbidity and mortality than those managed nonoperatively.

Fonkalsrud, Eric W.; Myers, Nate A.; Robinson, Max J.

1974-01-01

296

Collaboration Portals for NASA's Airborne Field Campaigns  

NASA Astrophysics Data System (ADS)

The University of Alabama in Huntsville (UAH), in collaboration with the Global Hydrology Resource Center, a NASA Earth Science Data Center, has provided information management for a number of NASA Airborne Field campaigns, both hurricane science investigations and satellite instrument validation. Effective field campaign management requires communication and coordination tools, including utilities for personnel to upload and share flight plans, weather forecasts, a variety of mission reports, preliminary science data, and personal photos. Beginning with the Genesis and Rapid Intensification Processes (GRIP) hurricane field campaign in 2010, we have provided these capabilities via a Drupal-based collaboration portal. This portal was reused and modified for the Midlatitude Continental Convective Clouds Experiment (MC3E), part of the Global Precipitation Measurement mission ground validation program. An end goal of these development efforts is the creation of a Drupal profile for field campaign management. This presentation will discuss experiences with Drupal in developing and using these collaboration portals. Topics will include Drupal modules used, advantages and disadvantages of working with Drupal in this context, and how the science teams used the portals in comparison with other communication and collaboration tools.

Conover, H.; Kulkarni, A.; Garrett, M.; Goodman, M.; Petersen, W. A.; Drewry, M.; Hardin, D. M.; He, M.

2011-12-01

297

Collaboration Portals for NASA's Airborne Field Campaigns  

NASA Technical Reports Server (NTRS)

The University of Alabama in Huntsville (UAH), in collaboration with the Global Hydrology Resource Center, a NASA Earth Science Data Center, has provided information management for a number of NASA Airborne Field campaigns, both hurricane science investigations and satellite instrument validation. Effective field campaign management requires communication and coordination tools, including utilities for personnel to upload and share flight plans, weather forecasts, a variety of mission reports, preliminary science data, and personal photos. Beginning with the Genesis and Rapid Intensification Processes (GRIP) hurricane field campaign in 2010, we have provided these capabilities via a Drupal-based collaboration portal. This portal was reused and modified for the Midlatitude Continental Convective Clouds Experiment (MC3E), part of the Global Precipitation Measurement mission ground validation program. An end goal of these development efforts is the creation of a Drupal profile for field campaign management. This presentation will discuss experiences with Drupal in developing and using these collaboration portals. Topics will include Drupal modules used, advantages and disadvantages of working with Drupal in this context, and how the science teams used the portals in comparison with other communication and collaboration tools.

Conover, Helen; Kulkami, Ajinkya; Garrett, Michele; Goodman, Michael; Peterson, Walter Arthur; Drewry, Marilyn; Hardin, Danny M.; He, Matt

2011-01-01

298

Opening the Portal to Better Relationships  

ERIC Educational Resources Information Center

Integration of library services into the portal that Lasalle University recently implemented for the entire campus is described. In addition to learning the technical aspects was the need to inspire change in the communication culture of the university and to rethink how the library provides services.

Ipri, Tom; Sell, James H.

2005-01-01

299

[Portal hypertension in pediatrics: II: Hemorrhagic complications].  

PubMed

Bleeding from esophageal varices is the most severe complication of portal hypertension, and should be managed in specially trained centers. Vasoactive drugs, mainly octreotide, plus endoscopic treatment are able to control bleeding in 90% of the cases. Rescue treatments like TIPS and surgery should be immediately available for those who do not stop bleeding or have varices difficult to manage. PMID:20672192

Costaguta, Alejandro; Alvarez, Fernando

2010-08-01

300

ExPASy: SIB bioinformatics resource portal  

PubMed Central

ExPASy (http://www.expasy.org) has worldwide reputation as one of the main bioinformatics resources for proteomics. It has now evolved, becoming an extensible and integrative portal accessing many scientific resources, databases and software tools in different areas of life sciences. Scientists can henceforth access seamlessly a wide range of resources in many different domains, such as proteomics, genomics, phylogeny/evolution, systems biology, population genetics, transcriptomics, etc. The individual resources (databases, web-based and downloadable software tools) are hosted in a ‘decentralized’ way by different groups of the SIB Swiss Institute of Bioinformatics and partner institutions. Specifically, a single web portal provides a common entry point to a wide range of resources developed and operated by different SIB groups and external institutions. The portal features a search function across ‘selected’ resources. Additionally, the availability and usage of resources are monitored. The portal is aimed for both expert users and people who are not familiar with a specific domain in life sciences. The new web interface provides, in particular, visual guidance for newcomers to ExPASy.

Artimo, Panu; Jonnalagedda, Manohar; Arnold, Konstantin; Baratin, Delphine; Csardi, Gabor; de Castro, Edouard; Duvaud, Severine; Flegel, Volker; Fortier, Arnaud; Gasteiger, Elisabeth; Grosdidier, Aurelien; Hernandez, Celine; Ioannidis, Vassilios; Kuznetsov, Dmitry; Liechti, Robin; Moretti, Sebastien; Mostaguir, Khaled; Redaschi, Nicole; Rossier, Gregoire; Xenarios, Ioannis; Stockinger, Heinz

2012-01-01

301

Metadata Engineering for Corporate Portals Using XML  

Microsoft Academic Search

Careful analysis and preparation is required in order to prepare for XML-based delivery of data via Corporate Portals. This\\u000a process is refereed to as Metadata Engineering. This presentation describes the use of the metadata model to guide the metadata\\u000a engineering as a precursor to metadata implementation in preparation for XML-based delivery.

Peter H. Aiken; Kathi Hogshead Davis

2000-01-01

302

Transjugular Intrahepatic Portosystemic Shunt for the Treatment of Portal Hypertension in Noncirrhotic Patients with Portal Cavernoma  

PubMed Central

Background. The purpose of this study was to evaluate the safety and efficacy of transjugular intrahepatic portosystemic shunt (TIPS) placement in the management of portal hypertension in noncirrhotic patients with portal cavernoma. Methods. We conducted a single institution retrospective analysis of 15 noncirrhotic patients with portal cavernoma treated with TIPS placement. 15 patients (4 women and 11 men) were evaluated via the technical success of TIPS placement, procedural complications, and follow-up shunt patency. Results. TIPS placement was technically successful in 11 out of 15 patients (73.3%). Procedure-related complications were limited to a single instance of hepatic encephalopathy in one patient. In patients with successful shunt placement, the portal pressure gradient decreased from 25.8 ± 5.7 to 9.5 ± 4.2?mmHg (P < 0.001). TIPS dysfunction occurred in two patients during a median follow-up time of 45.2 months. Revision was not performed in one patient due to inadequate inflow. The other patient died of massive gastrointestinal bleeding in a local hospital. The remaining nine patients maintained functioning shunts through their last evaluation. Conclusions. TIPS is a safe and effective therapeutic treatment for noncirrhotic patients with symptomatic portal hypertension secondary to portal cavernoma.

Luo, Xuefeng; Zhou, Biao; Yao, Denghua; Ma, Huaiyuan; Jiang, Mingshan; Zhang, Hailong; Li, Xiao

2014-01-01

303

Noninvasive Evaluation of Portal Hypertension: Emerging Tools and Techniques  

PubMed Central

Portal hypertension is the main cause of complications in patients with cirrhosis. However, evaluating the development and progression of portal hypertension represents a challenge for clinicians. There has been considerable focus on the potential role of noninvasive markers of portal hypertension that could be used to stratify patients with respect to the stage of portal hypertension and to monitor disease progression or treatment response in a longitudinal manner without having to undertake repeated invasive assessment. The pathogenesis of portal hypertension is increasingly understood and emerging knowledge of the vascular processes that underpin portal hypertension has paved the way for exploring novel biomarkers of vascular injury, angiogenesis, and endothelial dysfunction. In this paper we focus on the pathogenesis of portal hypertension and potential non-invasive biomarkers with particular emphasis on serum analytes.

Snowdon, V. K.; Guha, N.; Fallowfield, J. A.

2012-01-01

304

Portal hypertensive biliopathy: review of pathophysiology and management.  

PubMed

Portal hypertensive biliopathy is described as abnormalities of the walls of the biliary tree secondary to portal hypertension. In literature it has also been named as "Cholangiopathy associated with portal hypertension", "Portal biliopathy" and "Portal cavernoma associated cholangiopathy". It is usually asymptomatic and found incidentally, but rarely patients do present with symptoms of abdominal pain, jaundice, asthenia and fever. Treatment is warranted in symptomatic cases only, and is dictated by the clinical manifestations and complications of the disease process. Due to presence of underlying severe portal hypertension, endoscopic biliary intervention is usually the first line of management, and is relatively safe and often sufficient. When surgery is resorted to, a porto-systemic shunt prior to biliary bypass procedure provides early relief of obstructive biliary symptoms and often precludes the need for a biliary bypass surgery. This review describes the pathophysiology, presentation, progression and management approaches to portal biliopathy. PMID:23600046

Khan, Muhammad Rizwan; Tariq, Jibran; Raza, Rushna; Effendi, Muhammad Shahrukh

2012-01-01

305

Education  

ERIC Educational Resources Information Center

This book will be an original and indispensable resource for all who believe in the importance of art in the wider educational realm. Framing the recent "educational turn" in the arts within a broad historical and social context, this anthology raises fundamental questions about how and what should be taught in an era of distributive rather than…

Allen, Felicity

2011-01-01

306

Education  

ERIC Educational Resources Information Center

Education is people's most powerful tool for social progress and economic recovery. But inadequate access, due to financial constraints and lack of preparation, is hampering the efficacy of the postsecondary sector to advance economic and social progress. There are, however, signs of change. Ramping up investment in education is a pillar of U.S.…

Pulley, John

2009-01-01

307

Percutaneous Transumbilical Portal Vein Embolization in a Patient with a Ruptured Hepatocellular Carcinoma Supplied by the Portal Vein  

SciTech Connect

We describe a case of a ruptured hepatocellular carcinoma supplied by the portal vein that was successfully treated with portal vein embolization via a percutaneous transumbilical approach. A contrast material-enhanced computed tomographic (CT) scan showed the presence of a large hypervascular tumor on portal venous phase as well as right hepatic vein thrombosis and hemoperitoneum that prevented portal vein embolization by the use of the percutaneous and transjugular transhepatic approach. The use of percutaneous transumbilical portal vein embolization can be an alternative option in this situation.

Kim, Soo Chin; Kim, Hyo-Cheol, E-mail: angiointervention@gmail.com; Chung, Jin Wook; Jae, Hwan Jun; Park, Jae Hyung [Seoul National University College of Medicine, Department of Radiology (Korea, Republic of)

2011-02-15

308

Black Canyon Outreach Education  

NSDL National Science Digital Library

This portal features links to K-12 outreach education units on the Black Canyon of the Gunnison National Park and Curecanti National Recreation Area. They focus on topics such as trees, habitats, fossils, animal adaptations, seasons, weather, the water cycle, mapping and geology. There are also downloadable activities for sutdents to perform either before or after their visits to the area.

309

Consortium for Oral Health-Related Informatics: Improving Dental Research, Education, and Treatment  

PubMed Central

Advances in informatics, particularly the implementation of electronic health records (EHR), in dentistry have facilitated the exchange of information. The majority of dental schools in North America use the same EHR system, providing an unprecedented opportunity to integrate these data into a repository that can be used for oral health education and research. In 2007, fourteen dental schools formed the Consortium for Oral Health-Related Informatics (COHRI). Since its inception, COHRI has established structural and operational processes, governance and bylaws, and a number of work groups organized in two divisions: one focused on research (data standardization, integration, and analysis), and one focused on education (performance evaluations, virtual standardized patients, and objective structured clinical examinations). To date, COHRI (which now includes twenty dental schools) has been successful in developing a data repository, pilot-testing data integration, and sharing EHR enhancements among the group. This consortium has collaborated on standardizing medical and dental histories, developing diagnostic terminology, and promoting the utilization of informatics in dental education. The consortium is in the process of assembling the largest oral health database ever created. This will be an invaluable resource for research and provide a foundation for evidence-based dentistry for years to come.

Stark, Paul C.; Kalenderian, Elsbeth; White, Joel M.; Walji, Muhammad F.; Stewart, Denice C.L.; Kimmes, Nicole; Meng, Thomas R.; Willis, George P.; DeVries, Ted; Chapman, Robert J.

2011-01-01

310

Campus Portals: Supportive Mechanisms for University Communication, Collaboration, and Organizational Change.  

ERIC Educational Resources Information Center

University portals provide a new computerized interface between colleges and constituent groups. This article discusses: campus portals and possible features they may contain, nine strategies for portal projects, collaborative mechanisms to develop and implement portal projects, criteria for determination of campus portal readiness, potential…

Eisler, David L.

2001-01-01

311

Transcapillary Water and Protein Flux in the Canine Intestine with Acute and Chronic Extrahepatic Portal Hypertension  

Microsoft Academic Search

SUMMARY. Intestinal transcapillary water and total protein flux were determined in dogs with chronic extrahepatic portal hypertension after construction of an aortic-portal shunt combined with hilar portal vein constriction and compared to acute portal vein constriction. Measurements were made of thoracic duct lymph flow, portal venous pressure, and total protein concentration in plasma, thoracic duct lymph, intestinal and liver lymph.

Charles L. Witte; John F. Myers; Marlys H. Witte; Murray A. Katz

312

Sunshot Initiative High Penetration Solar Portal  

DOE Data Explorer

The DOE SunShot Initiative is a collaborative national initiative to make solar energy cost-competitive with other forms of energy by the end of the decade. Reducing the installed cost of solar energy systems by about 75% will drive widespread large-scale adoption of this renewable energy and restore U.S. leadership in the global clean energy race. The High Penetration Solar Portal was created as a resource to aggregate the most relevant and timely information related to high penetration solar scenarios and integrating solar into the grid. The site is designed so that utilities, grant awardees, regulators, researchers, and other solar professionals can easily share data, case studies, lessons learned, and demonstration project findings. [copied from https://solarhighpen.energy.gov/about_the_high_penetration_solar_portal

313

Sinusoidal portal hypertension in hepatic amyloidosis.  

PubMed Central

Hepatic venous catheterisation and transvenous liver biopsy were performed in five patients with hepatic amyloidosis. In three patients, hepatic venous pressures were normal and histological examination of the liver biopsy specimen showed discrete and sparse perisinusoidal amyloid deposits. In the other two, however, the gradient between wedged and free hepatic venous pressures was increased (12 and 16 mmHg; normal 1-4 mmHg) and amyloid deposits were abundant and diffuse in the Disse's space. This study shows that portal hypertension in patients with hepatic amyloidosis is of the sinusoidal type and is related to the reduction of vascular space of hepatic sinusoids by massive perisinusoidal amyloid deposits. Furthermore, portal hypertension is associated with a poor prognosis in patients with hepatic amyloidosis. Images Figure 1 Figure 2

Bion, E; Brenard, R; Pariente, E A; Lebrec, D; Degott, C; Maitre, F; Benhamou, J P

1991-01-01

314

The QUEST Data Portal Visualisation Service  

NASA Astrophysics Data System (ADS)

The QUEST (Quantifying and Understanding the Earth System) Data Portal Visualisation Service provides access to a wide range of earth system science datasets, such as: observational climate composites, climate model projections and simulations, a biodiversity index and human population. The user interface allows the user to navigate and view the datasets through Open Geospatial Consortium compliant Web Map Servers. Presenting a wide range of datasets through a generic interface (which needs to work within a range of browsers, their versions and configurations) creates many conflicting demands. This poster describes the strategies adopted to create a portal which gives flexible access to a wide range of datasets, and maintains clear links back to detailed descriptions of the data.

Norton, Peter; Pascoe, Stephen; Juckes, Martin

2010-05-01

315

Portal vein thrombosis in liver cirrhosis  

PubMed Central

Portal vein thrombosis (PVT) is considered to be a frequent complication of liver cirrhosis. However, unlike PVT in patients without cirrhosis, very few data are available on the natural history and management of PVT in cirrhosis, despite its association with potentially life-threatening conditions, such as gastroesophageal bleeding and acute intestinal ischemia. Moreover, no consensus regarding PVT in cirrhosis exists. Suggested causes of PVT in cirrhosis include reduced portal blood flow velocity, multiple congenital or acquired thrombophilic factors, inherited or acquired conditions, and derangement of liver architecture. However, the understanding of PVT in cirrhosis is incomplete. In addition, information on the management of PVT in cirrhosis is inadequate. The aims of this review are to: (1) assemble data on the physiopathological mechanism, clinical findings, diagnosis and management of PVT in cirrhosis; (2) describe the principal factors most frequently involved in PVT development; and (3) summarize the recent knowledge concerning diagnostic and therapeutic procedures.

Kinjo, Nao; Kawanaka, Hirofumi; Akahoshi, Tomohiko; Matsumoto, Yoshihiro; Kamori, Masahiro; Nagao, Yoshihiro; Hashimoto, Naotaka; Uehara, Hideo; Tomikawa, Morimasa; Shirabe, Ken; Maehara, Yoshihiko

2014-01-01

316

Global Biodiversity Information Facility: Biodiversity Data Portal  

NSDL National Science Digital Library

This Biodiversity Data Portal website is hosted by the Global Biodiversity Information Facility (reported on in the Scout Report for Science & Engineering, March 14, 2001), an international organization committed to providing "free and universal access to data regarding the world's diversity." As its name indicates, the Data Portal provides access to biodiversity information from around the world and allows site visitors to browse for taxonomic data organized by Kingdom of Life, country, or data providers. Visitors can search for specimen or field observation data by data providers as well. The site also contains a search engine with search options that include many different countries, scientific name, common name in any language, English name, and more. This website is available in French, English, and Danish. Note: Prior to viewing data, site visitors must first agree to the Global Biodiversity Information Facility (GBIF) Interim Data Use Agreement.

317

Portal Vein Embolization: What Do We Know?  

SciTech Connect

Portal vein embolization (PVE) has been developed to increase the size of the future remnant liver (FRL) left in place after major hepatectomy, thus reducing the risk of postoperative liver insufficiency. PVE consist in embolizing preoperatively portal branches of the segments that will be resected. Indication is based on preoperative measurements of the FRL by computed tomography and its ratio with either the theoretical liver volume or by direct measurement of the functional liver volume. After PVE, the volume and function of the FRL increases in 3 to 6 weeks, permitting extensive resections in patients otherwise contraindicated for liver resection. The PVE technique is variable from one center to another; however n-butyl-cyano-acrylate provides an interesting compromise between hypertrophy rate and procedure risk.

Denys, Alban, E-mail: Alban.Denys@chuv.ch [Centre Hospitalo Universitaire Vaudois, Department of Radiology and Interventional Radiology Unit (Switzerland); Prior, John [Centre Hospitalo Universitaire Vaudois, Department of Nuclear Medicine (Switzerland); Bize, Pierre; Duran, Rafael [Centre Hospitalo Universitaire Vaudois, Department of Radiology and Interventional Radiology Unit (Switzerland); Baere, Thierry De [Institut Gustave Roussy, Department of Interventional Radiology (France); Halkic, Nermin; Demartines, Nicolas [Centre Hospitalo Universitaire Vaudois, Department of Visceral Surgery (Switzerland)

2012-10-15

318

Diavideos: a diabetes health video portal.  

PubMed

Diavideos is a web platform that collects trustworthy diabetes health videos from YouTube and offers them in a easy way. YouTube is a big repository of health videos, but good content is sometimes mixed with misleading and harmful videos such as promoting anorexia [1]. Diavideos is a web portal that provides easy access to a repository of trustworthy diabetes videos. This poster describes Diavideos and explains the crawling method used to retrieve these videos from trusted channels. PMID:23920715

Sánchez-Bocanegra, C L; Rivero-Rodriguez, A; Fernández-Luque, L; Sevillano, J L

2013-01-01

319

Mobile Portal Personalization: Tools and Techniques  

Microsoft Academic Search

\\u000a The usability of mobile portals has been a major stumbling block since the advent of the mobile Internet and WAP handsets.\\u000a Indeed poor usability is cited as a major contributing factor to the poor take-up of mobile Internet services amongst consumers.\\u000a A key problem relates to the amount of time that users spend navigating to content as they browse mobile

Barry Smyth; Kevin Mccarthy; James Reilly

2003-01-01

320

Portal hypertension in acute liver failure  

Microsoft Academic Search

Twenty five patients with acute liver failure were measured for hepatic venous pressure gradient as an index of portal pressure during the course of a transjugular liver biopsy. Hepatic venous pressure gradient ranged from 4 to 24.5 mm Hg with a mean of 12.8 (5.3) mm Hg (normal values less than 5 mm Hg). All patients but one had increased

M Navasa; J C Garcia-Pagán; J Bosch; J R Riera; R Bañares; A Mas; M Bruguera; J Rodés

1992-01-01

321

NCI at Frederick: PHL Portal - Sign In  

Cancer.gov

Welcome to the new PHL Portal; a website designed to provide our customers the ability to manage and track requests online. Once securely logged in, the web-based interface allows you to search for individual animals, review open and past requests and to check charges incurred to date. Information is updated on a daily basis. Every request also includes an email link to a contact person within PHL who will respond to questions or concerns.

322

Interventional Radiologic Treatment for Idiopathic Portal Hypertension  

SciTech Connect

Purpose: To evaluate the usefulness of interventional radiological treatment for idiopathic portal hypertension. Methods: Between 1995 and 1998, we performed an interventional radiological treatment in five patients with idiopathic portal hypertension, four of whom had refused surgery and one of whom had undergone surgery. Three patients with gastroesophageal varices (GEV) were treated by partial splenic embolization (PSE), one patient with esophageal varices (EV) and massive ascites by transjugular intrahepatic portosytemic shunt (TIPS) and PSE, and one patient with GEV by percutaneous transhepatic obliteration (PTO). Midterm results were analyzed in terms of the effect on esophageal and/or gastric varices. Results: In one woman with severe GEV who underwent three sessions of PSE, there was endoscopic confirmation that the GEV had disappeared. In one man his EV shrunk markedly after two sessions of PSE. In two patients slight reduction of the EV was obtained with one application of PSE combined with endoscopic variceal ligation therapy. PTO for GV in one patient resulted in good control of the varices. All patients have survived for 16-42 months since the first interventional treatment, and varices are well controlled. Conclusion: Interventional radiological treatment is effective for patients with idiopathic portal hypertension, whether or not they have undergone surgery.

Hirota, Shozo; Ichikawa, Satoshi; Matsumoto, Shinichi; Motohara, Tomofumi; Fukuda, Tetsuya; Yoshikawa, Takeshi [Department of Radiology, Kobe University School of Medicine, 7-5-2 Kusunoki-cho, Chuo-ku, Kobe City, Japan 650-0017 (Japan)

1999-07-15

323

Surgical management of portal hypertension in children.  

PubMed

The management of children with portal hypertension has dramatically changed during the past decade, with an improvement in outcome. This has been achieved by improved efficiency of endoscopic variceal control and the success of liver transplantation. Emergency surgical shunt procedures are rarely required, with acute bleeding episodes generally controlled endoscopically or, occasionally in adults, by interventional radiological procedures. Portosystemic shunts may be considered as a bridge to transplant in adults but are rarely used in this context in children. Nontransplant surgery or radiological interventions may still be indicated for noncirrhotic portal hypertension when the primary cause can be cured and to allow normalization of portal pressure before liver parenchyma is damaged by chronic secondary changes in some specific diseases. The meso-Rex bypass shunt is used widely but is limited to those with a favorable anatomy and can even be performed preemptively. Elective portosystemic shunt surgery is reserved for failure to respond to conservative management in the absence of alternative therapies. PMID:22800975

de Ville de Goyet, Jean; D'Ambrosio, Giuseppe; Grimaldi, Chiara

2012-08-01

324

Liver transplantation with calcific sclerosis of the portal vein.  

PubMed

Thrombosis or phlebosclerosis of the portal vein is an infrequent finding during the preoperative evaluation of a potential liver transplant recipient. Occasionally the process extends proximally into the superior mesenteric vein. This precludes conventional methods of portal venous reconstruction, necessitating reconstitution of portal venous inflow during liver transplantation through a venous conduit. The authors present a case of calcific phlebosclerosis of the portal and distal superior mesenteric veins that was delineated during preoperative imaging. This case emphasizes the importance of visualizing both the portal and superior mesenteric veins during the preoperative assessment, when patency of the portal vein is questionable. When the obliterative process extends into the distal superior mesenteric vein the authors recommend construction of the venous conduit from the proximal superior mesenteric vein as a pre-emptive manoeuvre before dissection of the recipient's liver and hilar structures. The venous conduit is then ready for immediate use during engraftment, thereby maintaining the shortest possible anhepatic time. PMID:1913389

Hoffman, M A; Planeta, L A; Rohrer, R J

1991-10-01

325

Development of a trace explosives detection portal for personnel screening  

SciTech Connect

The authors discuss the development, design, and operation of a walk-through trace detection portal designed to screen personnel for explosives. Developed at Sandia National Laboratories (SNL) with primary funding from the Federal Aviation Administration (FAA) and additional support from the Department of Energy office of Safeguards and Security, this portal is intended primarily for use in airport terminals and in other localities where a very high throughput of pedestrian traffic is combined with stringent security requirements. The portal is capable of detecting both vapor and particulate contamination, with the collection of explosive material being based upon the entrainment of that material in air flows over the body of the person being screened. This portal is capable of detecting most types of common high explosives of interest to the FAA. The authors discuss the results of field testing of the portal in the Albuquerque International Airport in September, 1997 and more recent steps towards commercialization of the portal.

Parmeter, J.E.; Linker, K.L.; Rhykerd, C.L. Jr.; Bouchier, F.A.; Hannum, D.W.

1998-08-01

326

A collaborative travel service portal with multi-level authentication  

Microsoft Academic Search

This article presents a collaborative travel portal with ecommerce and operation services based on multi-level authentication. The portal provides composite ecommerce service for tourists and distributed operation services for a virtual travel enterprise. The virtual enterprise is kind of dynamic coalition, and reorganized by tourism-related cross-regional business agencies. The portal has been developed based on two years of survey and

Yinsheng Li; Haifeng Xie; Mu Zhu; Bing Dong; Kuo-ming Chao

2009-01-01

327

Preduodenal portal vein: a cause of prenatally diagnosed duodenal obstruction.  

PubMed

Preduodenal portal vein is a rare congenital anomaly that causes high intestinal obstruction. The authors report on a newborn who was diagnosed as having duodenal obstruction at 30 weeks' gestation. During surgery the patient was found to have duodenal obstruction caused by a preduodenal portal vein. Malrotation was an associated finding. Treatment consisted of Ladd's procedure and a diamond-shaped duodenoduodenostomy performed anterior to the portal vein. PMID:8786512

Choi, S O; Park, W H

1995-10-01

328

Basic Knee Arthroscopy Part 2: Surface Anatomy and Portal Placement  

PubMed Central

Knee arthroscopy is an important diagnostic and therapeutic tool in the management of disorders of the knee. In a series of 4 articles, the basics of knee arthroscopy are reviewed. In this article (part 2), surface anatomy and the anterolateral and anteromedial portals are reviewed. Accurate portal placement is critical to both diagnostic and operative arthroscopy. Mastery of the surface anatomy allows accurate and reproducible portal placement.

Ward, Benjamin D.; Lubowitz, James H.

2013-01-01

329

Education  

NASA Astrophysics Data System (ADS)

Government schools in Congo kinshasa are not providing quality education to the masses since many years, and this phenomenon has not escaped the eyes of experts, activists, and policy makers. However, there seems to be a general perception that the main, and sometimes even the sole, source of this problem are the low levels of government expenditure of education. And to prove their case supports of this view cite educational expenditure to GDP ratios in Congo kinshasa in comparison with that of some other nations. Though there may be reasonable arguments to increase the level of government expenditure on education, such hijacking of public debate to focus on - the level of expenditure - often overlooks more important issues. Contrary to common perception the level of per student expenditure on government schools in Delhi is reasonable, ranging from Fc.6000 to Fc.12000 p.a. There are a number of organisational deficiencies which do not create checks and balances for appropriate utilization of fund. Moreover, the division of these funds among social groups and for different purposes is also questionable. Though, female literacy lags significantly behind male literacy, about 15% points, extra resources provided for female education are insignificant. And in some schemes such as the one run for 'street children' and 'child labourers', large amounts are budgeted year after year without a single French congolese being spent. Also government schools catering to richer regions of Kinshasa seem to be spending more per child as compared to the poorer counterparts. The paper also proposes an education voucher model, which may have the potential to address some of the issues raised in the paper. Trends in expenditure under some schemes have been studied in relation to the purpose of expenditure. The issue of government expenditure on education is a complex one, and public space should be utilized to discuss them as they are, rather than reducing discussion to dogmatic wars aimed at increasing the levels of expenditure. Though, one may agree or disagree with the methods and findings of the author, hopefully the paper highlight the complexity of the issue at hand, and the need to understand the institutional deficiencies and allocative inefficiencies in government expenditure on education.

Lundja, J. O.; Decrosta, J. T.; Lechuga, P.

2009-05-01

330

EMODnet Physical Parameters (EMODNet PP) Portal  

NASA Astrophysics Data System (ADS)

In December 2007 the European Parliament and Council adopted a common text for the Marine Strategy Framework Directive which aims to achieve environmentally healthy marine waters by 2020. This Directive includes an initiative for an overarching European Marine Observation and Data Network (EMODNet). During the one-year consultation phase that followed the release of the EU Green Paper on a Future Maritime Policy for the European Union, stakeholders gave an overwhelming positive response. Facilitating access to high quality marine data will resolve difficulties and stimulate an expansion of value-added public and commercial services, lay the foundations for sound governance and reduce uncertainties on human impact on the planet as well as of forecasts relating to the future state of the marine environment. Better and linked marine data will have an immediate impact on the planning of environmental policy and mitigation measures, and will also facilitate impact assessments and scientific work. The overall objectives of the EMODnet Physical Parameters (EMODNet PP) preparatory action is to provide access to archived and near real-time data on physical conditions in Europe's seas and oceans by means of a dedicated Pilot Portal and to determine how well the data meet the needs of users from industry, public authorities and scientists. The latter implicates that it is also an objective to identify data gaps and arguments why these gaps should be filled in future monitoring. This project will contribute towards the definition of an operational European Marine Observation and Data Network (EMODnet). This is done done by: 1. providing through a portal: a. access to marine data from measurement stations and ferryboxes. Both near real-time and archived data of time series are to be made available. b. metadata for these data sets using EMODnet/INSPIRE standards. c. metadata maps and overviews for whole sea-basins showing the availability of data and monitoring intensity of that basin. 2. monitoring and reporting on the effectiveness of the portal in meeting the needs of users in terms of ease of use, quality of information and fitness for purpose of the products delivered. 3. analysing what lessons have been learned for a future operational EMODnet. 4. keeping the portal operational afterwards The EMODNet PP project asks for the following types of measurements: Measurements from fixed stations that should cover at least: 1. wave height and period; 2. temperature of the water column; 3. wind speed and direction; 4. salinity of the water column; 5. horizontal velocity of the water column ; 6. light attenuation; 7. sea level. Measurements from ferryboxes that should cover at least: - temperature of the water column; - salinity of the water column. A portal accessing distributed data bases has been developed.

Novellino, A.; Schaap, D.; Manzella, G. M. R.; Pouliquen, S.; Gorringe, P.

2012-04-01

331

Portal hypertension and varices in patients with liver cirrhosis.  

PubMed

Portal hypertension is a complication seen in patients with liver cirrhosis and is characterised by high pressure in the portal vein. As portal hypertension worsens, varices can form, leading to increased morbidity and mortality if these rupture. Bleeding can be prevented with pharmacological agents and endoscopic therapy; however, some patients will experience variceal haemorrhage. Medical and nursing management of acute variceal haemorrhage is key to a successful outcome, and after initial resuscitation, endoscopic therapy should be undertaken. Long-term management to prevent re-bleeding may involve surgery to implant shunts, which aim to reduce portal venous pressure. However, patients often require referral to specialist centres for transplant assessment. PMID:22916658

Fullwood, Danielle

332

View up from portal level inside of pyramidal structure toward ...  

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

View up from portal level inside of pyramidal structure toward pintle. - Naval Base Philadelphia-Philadelphia Naval Shipyard, 350-Ton Hammerhead Crane, League Island, Philadelphia, Philadelphia County, PA

333

Portal vein embolization induces compensatory hypertrophy of remnant liver  

PubMed Central

AIM: To evaluate the effectiveness and safety of different portal vein branch embolization agents in inducing compensatory hypertrophy of the remnant liver and to offer a theoretic basis for clinical portal vein branch embolization. METHODS: Forty-one adult dogs were included in the experiment and divided into four groups. Five dogs served as a control group, 12 as a gelfoam group, 12 as a coil-gelfoam group and 12 as an absolute ethanol group. Left portal vein embolization was performed in each group. The results from the embolization in each group using different embolic agents were compared. The safety of portal vein embolization (PVE) was evaluated by liver function test, computed tomography (CT) and digital subtraction angiography (DSA) of liver and portal veins. Statistical test of variance was performed to analyze the results. RESULTS: Gelfoam used for PVE was inefficient in recanalization of portal vein branch 4 wk after the procedure. The liver volume in groups of coil-gelfoam and absolute ethanol increased 25.1% and 33.18%, respectively. There was no evidence of recanalization of embolized portal vein, hepatic dysfunction, and portal hypertension in coil-gelfoam group and absolute ethanol group. CONCOUSION: Portal vein branch embolization using absolute ethanol and coil-gelfoam could induce atrophy of the embolized lobes and compensatory hypertrophy of the remnant liver. Gelfoam is an inefficient agent.

Huang, Jing-Yao; Yang, Wei-Zhu; Li, Jian-Jun; Jiang, Na; Zheng, Qu-Bin

2006-01-01

334

Indications for portal pressure measurement in chronic liver disease.  

PubMed

Portal hypertension leads to development of serious complications such as esophageal varices, ascites, renal and cardiovascular dysfunction. The importance of the degree of portal hypertension has been substantiated within recent years. Measurement of the portal pressure is simple and safe and the hepatic venous pressure gradient (HVPG) independently predicts survival and development of complications such as ascites, HCC and bleeding from esophageal varices. Moreover, measurements of HVPG can be used to guide pharmacotherapy for primary and secondary prophylaxis for variceal bleeding. Assessment of HVPG should therefore be considered as a part of the general characterization of patients with portal hypertension in departments assessing and treating this condition. PMID:22809270

Hobolth, Lise; Bendtsen, Flemming; Møller, Søren

2012-09-01

335

Portal Hypertension, Nodular Regenerative Hyperplasia of the Liver, and Obstructive Portal Venopathy due to Metastatic Breast Cancer  

PubMed Central

Nodular regenerative hyperplasia (NRH) of the liver is associated with noncirrhotic portal hypertension, rheumatologic and hematologic disorders, administration of certain drugs, and other underlying conditions. This report describes a 64-year-old man with clinically presumed cirrhosis who presented to our institution with coffee-ground emesis, esophageal varices, ascites, and encephalopathy. Eleven years earlier he had been treated for breast cancer with mastectomy and chemo-radiotherapy. He died suddenly, and the autopsy showed no evidence of cirrhosis but instead demonstrated NRH with extensive emboli of recurrent breast carcinoma within the portal vein and its intrahepatic branches. Neoplastic occlusion of the portal vein as a cause of presinusoidal noncirrhotic portal hypertension has not previously been reported for metastatic breast carcinoma. This case highlights the importance of obstructive portal venopathy in the pathogenesis of NRH as well as the diagnostic difficulties that may be encountered in determining the cause of portal hypertension.

Turk, Andrew T.; Szabolcs, Matthias J.; Lefkowitch, Jay H.

2013-01-01

336

30 CFR 75.1600-1 - Communication facilities; main portals; installation requirements.  

Code of Federal Regulations, 2010 CFR

...false Communication facilities; main portals; installation requirements. 75.1600-1...1600-1 Communication facilities; main portals; installation requirements. A telephone...the surface within 500 feet of all main portals, and shall be installed either...

2010-07-01

337

30 CFR 75.1600-1 - Communication facilities; main portals; installation requirements.  

Code of Federal Regulations, 2013 CFR

...false Communication facilities; main portals; installation requirements. 75.1600-1...1600-1 Communication facilities; main portals; installation requirements. A telephone...the surface within 500 feet of all main portals, and shall be installed either...

2013-07-01

338

ACTRIS Data Centre: An atmospheric data portal  

NASA Astrophysics Data System (ADS)

ACTRIS (Aerosols, Clouds, and Trace gases Research InfraStructure Network) is a European Project aiming at integrating European ground-based stations equipped with advanced instrumentation for studying aerosols, clouds, and short-lived gas-phase species. The ACTRIS activities result in improved atmospheric measurements data made at more than 60 European sites, from numerous instruments and includes variables measured by ground based in situ and remote sensing technologies. Core variables are in situ aerosol optical, physical and chemical properties, short-lived trace gases (volatile organic carbon and nitrogen oxides), aerosol scattering and extinction profiles, and cloud properties. The ACTRIS data centre (ACTRIS DC) is giving free and open access to all data resulting from the activities of the infrastructure network, complemented with data from other relevant networks and data bases. The overall goal is to facilitate scientists and other user groups access to atmospheric observational data, and to provide mature products for analysis and interpretation of atmospheric composition change. The ACTRIS DC aims at substantially increasing the number of high-quality data by providing long-term observational data relevant to climate and air quality research produced with standardized or comparable procedures throughout the network. The backbone of the ACTRIS DC is the three core data bases: - EARLINET Data Base hosting aerosol lidar data from more than 30 European sites - EBAS hosting ground based atmospheric in situ data from more than 1000 sites globally - Cloudnet hosting remote sensing cloud data and products from 5 European sites Furthermore, a joint portal is developed combining information from various data sources to gain new information not presently available from standalone databases or networks. The data centre will provide tools and services to facilitate the use of measurements for broad user communities. Higher level and integrated products will be developed stage-by-stage during the project, and user requirements, interactions and feedbacks are essential. The first version of ACTRIS DC is a web portal that allows users to search for atmospheric composition data from a multitude of data archives through a single user interface. Examples of data bases and frameworks included are EMEP, the GAW- world data centres, EARLINET, NDACC, CARIBIC-GEOmon, HTAP, AMAP amongst others. Currently the portal provides an overview of more than 800 000 data sets from more than 20 data bases/frameworks globally. For some of the databases included in the portal, the interface furthermore allows you to download data directly through the portal. A map functionality is implemented facilitating the identification of data and making it possible to search for collocation of observations, variables and sites both in time and space. The data portal can serve as "one-stop-shop" of atmospheric high-quality data, and the portal will also offer a direct interface towards external users like the MACC II project and GMES in-situ. The data dissemination will take into account the principles outlined in SEIS, INSPIRE, WIS and GEOSS.

Myhre, C. Lund; Fahre Vik, A.; Logna, R.; Torseth, K.; Linné, H.; O'Connor, E.

2012-04-01

339

Education  

ERIC Educational Resources Information Center

Short descriptions of NSF support for the State University of New York computer network, one year trial of educational materials from the United Kingdom's Open University, A Dartmouth course on control of life, Stanford action on a course on dysgenics, and a bioengineering program at Texas A&M. (TS)

Chemical and Engineering News, 1972

1972-01-01

340

Effects of 2-hydroxy-4-methylthiobutyrate on portal plasma flow and net portal appearance of amino acids in piglets  

Microsoft Academic Search

To determine whether portal plasma flow (PPF) and net portal appearance of amino acids (AA) could be affected by 2-hydroxy-4-methylthiobutyrate\\u000a (HMB), six barrows (35-day-old, 8.6 ± 1.4 kg), implanted with arterial, portal and mesenteric catheters, were fed a dl-methionine (as the control) or HMB-supplemented diet once hourly and infused intramesenterically with 1% p-amino hippurate. PPF was numerically 9% higher (P

Z. F. Fang; J. Luo; Z. L. Qi; F. R. Huang; S. J. Zhao; M. Y. Liu; S. W. Jiang; J. Peng

2009-01-01

341

Portal venous reconstruction in a living liver donor with an anomalous hepatic arterial and portal venous anatomy  

Microsoft Academic Search

Hepatic arterial and portal venous anomalies in living liver donors are not uncommon. Modified surgical techniques may be\\u000a required in such circumstances, although the safety of the living donor must always be given top priority. We describe here\\u000a a successful portal venous reconstruction in a living donor with an anomalous hepatic arterial and portal venous anatomy in\\u000a which the right

Shigeru Marubashi; Keizo Dono; Masato Sakon; Kunihito Gotoh; Hidenori Takahashi; Kazuhiko Hashimoto; Masaru Kubota; Shinji Yamamoto; Atsushi Miyamoto; Hiroaki Nagano; Shoji Nakamori; Koji Umeshita; Morito Monden

2005-01-01

342

VisEL: Visualisation of Expertise Level in a Special Interest Group Knowledge Portal  

Microsoft Academic Search

A variety of portals are available nowadays to support diverse purposes such as commercial, publishing, personal, affinity\\u000a and corporate portals. Affinity portals promote electronic communities who share common interest such as a special interest\\u000a group (SIG). Knowledge portal is an emerging trend that benefits the existing portal technology by designing such portals\\u000a with proper representation of the members’ shared knowledge.

Wan Muhammad Zulhafizsyam Wan Ahmad; Shahida Sulaiman; Umi Kalsom Yusof

2009-01-01

343

THE NSF National Science, Technology, Engineering, and Mathematics Education Digital Library (NSDL) Program; Software for Building a Full-Featured Discipline-Based Web Portal; A Metadata Framework Developed at the Tsinghua University Library To Aid in the Preservation of Digital Resources; A Scalable Architecture for Harvest-Based Digital Libraries; The Design and Evaluation of Interactivities in a Digital Library.  

ERIC Educational Resources Information Center

Includes five articles that discuss digital library programs related to the National Science Foundation; software for building Web portals; metadata developed at Tsinghua University Library (China) for preserving digital resources; the Open Archives Initiative for metadata and the need for a common infrastructure; and interactivity in a digital…

Zia, Lee L.; Almasy, Edward; Sleasman, David; Bower, Rachael; Niu, Jingfang; Liu, Xiaoming; Maly, Kurt; Zubair, Mohammad; Nelson, Michael L.; Brody, Tim; Harnard, Stevan; Carr, Les; Budhu, Muniram; Coleman, Anita

2002-01-01

344

Prolonged survival after portal decompression of patients with non-cirrhotic intrahepatic portal hypertension  

PubMed Central

In a series of 251 good-risk patients undergoing portal decompression for intrahepatic portal hypertension, one fifth have been found not to have hepatic cirrhosis. Of these, 44 had only minor changes in hepatic architecture, and the clinical features and subsequent course have been compared and contrasted with a group of 201 cirrhotic patients who underwent portal decompression for similar indications. The degree of portal hypertension was comparable in both groups and it was not possible confidently to differentiate the condition from hepatic cirrhosis on either clinical or biochemical grounds in the individual case. The histological lesion was not progressive in the non-cirrhotic group and this was reflected in the far better survival of these patients. After five years 83% (30 of 36) of this group were alive compared with 43% (65 of 152) of the cirrhotic patients. After 10 years the cumulative survival was 77% (20 of 26) for those without cirrhosis, contrasted with 22% (19 of 87) for the cirrhotic patients. ImagesFig. 1Fig. 2

Zeegen, R.; Stansfeld, A. G.; Dawson, A. M.; Hunt, A. H.

1970-01-01

345

Open source portal to distributed image repositories  

NASA Astrophysics Data System (ADS)

In large institution PACS, patient data may often reside in multiple separate systems. While most systems tend to be DICOM compliant, none of them offer the flexibility of seamless integration of multiple DICOM sources through a single access point. We developed a generic portal system with a web-based interactive front-end as well as an application programming interface (API) that allows both web users and client applications to query and retrieve image data from multiple DICOM sources. A set of software tools was developed to allow accessing several DICOM archives through a single point of access. An interactive web-based front-end allows user to search image data seamlessly from the different archives and display the results or route the image data to another DICOM compliant destination. An XML-based API allows other software programs to easily benefit from this portal to query and retrieve image data as well. Various techniques are employed to minimize the performance overhead inherent in the DICOM. The system is integrated with a hospital-wide HIPAA-compliant authentication and auditing service that provides centralized management of access to patient medical records. The system is provided under open source free licensing and developed using open-source components (Apache Tomcat for web server, MySQL for database, OJB for object/relational data mapping etc.). The portal paradigm offers a convenient and effective solution for accessing multiple image data sources in a given healthcare enterprise and can easily be extended to multi-institution through appropriate security and encryption mechanisms.

Tao, Wenchao; Ratib, Osman M.; Kho, Hwa; Hsu, Yung-Chao; Wang, Cun; Lee, Cason; McCoy, J. M.

2004-04-01

346

EarthTrends: The Environmental Information Portal  

NSDL National Science Digital Library

Provided by the World Resources Institute (WRI) with assistance from several sponsors, EarthTrends is an environmental information portal, offering searchable databases, data tables, country profiles, maps, and feature articles in ten topical sections. These include Coastal and Marine Ecosystems, Climate and Atmosphere, Agriculture and Food, and Forests and Grasslands, among others. The databases may be searched by country, region, variable, and year. Data tables and country profiles are provided in .pdf format. This slick-looking and fast-loading site is an excellent source of authoritative environmental information for teachers, students, and interested users.

347

Standardized liver volumetry for portal vein embolization.  

PubMed

Major and extended hepatic resections are being performed with increasing frequency as morbidity and mortality rates after major hepatectomies have declined and definitions of resectability have expanded for primary and metastatic hepatic malignancies. Systematic assessment of the anticipated functional remnant liver is essential before major hepatic resection to avoid postoperative hepatic insufficiency and its attendant sequelae. The volume of the future liver remnant (FLR) correlates with FLR function and postoperative outcome. This article describes the rationale for FLR measurement, methods of measuring FLR volume, and standardization to the total estimated liver volume. The indications for portal vein embolization based on standardized liver volumetry are summarized. PMID:21326551

Ribero, Dario; Chun, Yun Shin; Vauthey, Jean-Nicolas

2008-06-01

348

Correction of Extrahepatic Portal Vein Thrombosis by the Mesenteric to Left Portal Vein Bypass  

PubMed Central

Objective: The goal of this study was to determine the effectiveness of mesenteric vein to left portal vein bypass operation (MLPVB) in correcting extrahepatic portal vein thrombosis (EHPVT) in children. The treatment of idiopathic EHPVT has been primarily palliative, whereas MLPVB restores hepatic portal flow in patients with EHPVT. Methods: Thirty-four children with symptomatic EHPVT underwent surgery with intent to perform MLPVB and were followed for up to 7 years. MLPVB was successful in 31 patients (91%), all of whom maintain patent vein grafts and have symptomatic relief of EHPVT in follow-up. All patients had complete relief from gastrointestinal bleeding. Patients with hypersplenism had significant increases in platelet and leukocyte counts and reduction in spleen size. Superior mesenteric vein flow increased from 119 ± 66 mL/min before bypass to 447 ± 225 mL/min (P < 0.0001) after surgery. Postoperative blood flow in the bypass graft expressed as a fraction of calculated ideal portal flow for size correlated inversely with age (P < 0.001). Left-portal vein diameter increased from 2.6 ± 1.6 mm to 7.3 ± 2.4 mm 2 years after surgery (P < 0.002). Liver volume increased from 703 ± 349 cm3 to 799 ± 351 cm3 1 week after surgery (P < 0.001). Prothrombin time improved to normal in all patients 1 year after surgery. Conclusions: MLPVB provides excellent relief of symptoms in children with idiopathic EHPVT and results in liver growth and normalization of coagulation parameters. This surgery is corrective and should be done at as early an age as possible.

Superina, Riccardo; Bambini, Daniel A.; Lokar, Joan; Rigsby, Cynthia; Whitington, Peter F.

2006-01-01

349

Palliative portal vein stent placement in malignant and symptomatic extrinsic portal vein stenosis or occlusion.  

PubMed

This article evaluates the results of portal vein (PV) stent placement in patients with malignant extrinsic lesions stenosing or obstructing the PV and causing symptomatic PV hypertension (PVHT). Fourteen patients with bile duct cancer (n = 7), pancreatic adenocarcinoma (n = 4), or another cancer (n = 3) underwent percutaneous transhepatic portal venous stent placement because of gastroesophageal or jejunal varices (n = 9), ascites (n = 7), and/or thrombocytopenia (n = 2). Concurrent tumoral obstruction of the main bile duct was treated via the transhepatic route in the same session in four patients. Changes in portal venous pressure, complications, stent patency, and survival were evaluated. Mean +/- standard deviation (SD) gradient of portal venous pressure decreased significantly immediately after stent placement from 11.2 mmHg +/- 4.6 to 1.1 mmHg +/- 1.0 (P < 0.00001). Three patients had minor complications, and one developed a liver abscess. During a mean +/- SD follow-up of 134.4 +/- 123.3 days, portal stents remained patent in 11 patients (78.6%); stent occlusion occurred in 3 patients, 2 of whom had undergone previous major hepatectomy. After stent placement, PVHT symptoms were relieved in four (57.1%) of seven patients who died (mean survival, 97 +/- 71.2 days), and relieved in six (85.7%) of seven patients still alive at the end of follow-up (mean follow-up, 171.7 +/- 153.5 days). Stent placement in the PV is feasible and relatively safe. It helped to relieve PVHT symptoms in a single session. PMID:18956224

Novellas, Sébastien; Denys, Alban; Bize, Pierre; Brunner, Philippe; Motamedi, Jean Paul; Gugenheim, Jean; Caroli, François-Xavier; Chevallier, Patrick

2009-05-01

350

Benefits of NoSQL databases for portals & science gateways  

Microsoft Academic Search

Portals and gateways are increasingly offering users complex interfaces to interact with massive data sets. As dealing with big data becomes more commonplace, portal and gateway developers need to readdress how data is stored and rethink the supporting infrastructure that enables quick and simple access and analysis of data. It is becoming evident that traditional, relational databases are not always

Matthew R. Hanlon; Rion Dooley; Stephen Mock; Maytal Dahan; Praveen Nuthulapati; Patrick Hurley

2011-01-01

351

Connections: A Comprehensive Student Portal. Concept Paper and Proposal.  

ERIC Educational Resources Information Center

A student Web portal is a personalized, student-centric view of College Web resources. The "Artemis" system at Florida Community College at Jacksonville (FCCJ), represents movement toward realization of the efficiencies and student service possibilities of a Web portal. This proposal recommends a radical expansion of Artemis functions, one that…

Harr, Gary Lynn

352

A Community of Practice: Web Portals and Faculty Development.  

ERIC Educational Resources Information Center

Describes a Web portal constructed by Rose-Hulman Institute of Technology dedicated to improving middle school science, mathematics, and technology instruction. The portal emulates emerging corporate practices of knowledge management and process reinvention through information technology, and offers middle school teachers across Indiana a…

Carlson, Patricia A.

2002-01-01

353

Net Portal Absorption of Enterally Fed Ketoglutarate Is Limited in  

Microsoft Academic Search

Our aim was to quantify the intestinal meta- bolic fate of dietary -ketoglutarate (AKG). Female pigs (n 6; 21 d old) were implanted with arterial, venous, portal and gastric catheters and an ultrasonic portal flow probe and fed a corn and soybean meal- based diet. On the day of the experiment, the pigs received a 4-h intragastric infusion of sodium

Young Pigs; Barry D. Lambert; Barbara Stoll; Harri Niinikoski; Stefan Pierzynowski; Douglas G. Burrin

354

Measuring Campus Portal Effectiveness and the Contributing Factors  

ERIC Educational Resources Information Center

Purpose: The purpose of the paper is to evaluate the effectiveness or success of universities' portal implementation from the perspective of students as users. Adopting the model developed by Delone and McLean, portal effectiveness is defined as being composed of information quality, systems quality and service quality. In addition, the paper also…

Masrek, Mohamad Noorman bin

2007-01-01

355

Portal hypertensive colopathy in patients with liver cirrhosis  

Microsoft Academic Search

Abstract Abstract Abstract Abstract AIM: In patients with liver cirrhosis and portal hypertension, portal hypertensive colopathy is thought to be an important cause of lower gastrointestinal hemorrhage. In this study, we evaluated the prevalence of colonic mucosal changes in patients with liver cirrhosis and its clinical significance. METHODS: We evaluated the colonoscopic findings and liver function of 47 patients with

Keiichi Ito; Katsuya Shiraki; Takahisa Sakai; Hitoshi Yoshimura; Takeshi Nakano

356

Regional Ocean Data Portal: Transforming Information to Knowledge  

Microsoft Academic Search

The mission of the Gulf of Mexico Coastal Ocean Observing System's (GCOOS) regional data portal is to aggregate data and model output from distributed providers and to offer these, and derived products, through a single access point in standardized ways to a diverse set of users. The portal evolved under the NOAA-led U.S. Integrated Ocean Observing System (IOOS) program where

M. K. Howard; F. C. Gayanilo; A. E. Jochens

2009-01-01

357

8. East portal of 1898 swing span of Bridge Number ...  

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

8. East portal of 1898 swing span of Bridge Number 210.52, view to east, 210mm lens. Note the difference in the latticed portal strut as compared to that of the 1929 approach span in the previous photo. - Southern Pacific Railroad Shasta Route, Bridge No. 210.52, Milepost 210.52, Tehama, Tehama County, CA

358

Selecting appropriate test targets for portal weapons detection  

Microsoft Academic Search

Adjusting a portal metal detector for weapons detection must be performed with great care. Set the sensitivity too high and the false rejection rate for personnel passing through the portal will slow traffic to everyone's annoyance. Set the sensitivity too low and run the risk that the machine will allow some of today's small handguns to pass with impunity. Because

1990-01-01

359

Continued Use of a Chinese Online Portal: An Empirical Study  

ERIC Educational Resources Information Center

The evolution of the internet has made online portals a popular means of surfing the internet. In internet commerce, understanding the post-adoption behaviour of users of online portals can help enterprises to attract new users and retain existing customers. For predicting continued use intentions, this empirical study focused on applying and…

Shih, Hung-Pin

2008-01-01

360

Peculiar characteristics of portal-hepatic hemodynamics of alcoholic cirrhosis  

PubMed Central

Alcohol-related cirrhosis is a consequence of heavy and prolonged drinking. Similarly to patients with cirrhosis of other etiologies, patients with alcoholic cirrhosis develop portal hypertension and the hepatic, splanchnic and systemic hemodynamic alterations that follow. However, in alcoholic cirrhosis, some specific features can be observed. Compared to viral cirrhosis, in alcohol-related cirrhosis sinusoidal pressure is generally higher, hepatic venous pressure gradient reflects portal pressure better, the portal flow perfusing the liver is reduced despite an increase in liver weight, the prevalence of reversal portal blood flow is higher, a patent paraumbilical vein is a more common finding and signs of hyperdynamic circulations, such as an increased cardiac output and decreased systemic vascular resistance, are more pronounced. Moreover, alcohol consumption can acutely increase portal pressure and portal-collateral blood flow. Alcoholic cardiomyopathy, another pathological consequence of prolonged alcohol misuse, may contribute to the hemodynamic changes occurring in alcohol-related cirrhosis. The aim of this review was to assess the portal-hepatic changes that occur in alcohol-related cirrhosis, focusing on the differences observed in comparison with patients with viral cirrhosis. The knowledge of the specific characteristics of this pathological condition can be helpful in the management of portal hypertension and its complications in patients with alcohol-related cirrhosis.

Bolognesi, Massimo; Verardo, Alberto; Di Pascoli, Marco

2014-01-01

361

An Analysis of Knowledge Management Mechanisms in Healthcare Portals  

ERIC Educational Resources Information Center

Healthcare portals are becoming increasingly popular with Internet users since they play an important role in supporting interaction between individuals and healthcare organizations with a Web presence. Additionally, many of these organizations make use of knowledge management mechanisms on their healthcare portals to manage the abundance of…

Lee, Chei Sian; Goh, Dion Hoe-Lian; Chua, Alton Y. K.

2010-01-01

362

12. Detail of west side of southwest portal showing the ...  

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

12. Detail of west side of southwest portal showing the latticed diagonal brace and the hip vertical, pin-connected to the latticed inclined end post directly beneath the riveted connection with the portal bracing. - Post Road Bridge, State Route 7-A, Havre de Grace, Harford County, MD

363

Portal hypertensive cardiovascular pathology: the rescue of ancestral survival mechanisms?  

PubMed

The portal system derives from the vitelline system, which is an extra-embryonic venous system. It could be suggested that this extraembryonic origin determines some of the characteristics attributed to portal hypertension, both compensated, i.e. prehepatic, and decompensated, i.e. fibrotic or cirrhotic. The experimental models most frequently used for studying both types of portal hypertension are portal vein ligation and common bile duct ligation in rats, respectively. We propose that in partial portal vein ligated rats, a low-grade inflammatory response, formed by the successive expression of three overlapping phenotypes - ischemia-reperfusion, vitellogenic-like and remodeling or gastrulation-like - is produced. The names of these inflammatory phenotypes developed in compensated portal hypertension are based on some metabolic similarities that can be established with the abovementioned phases of embryonic development. In bile-duct ligated rats, decompensation related to hepatic insufficiency would induce a high-grade inflammatory response. In this experimental model, the splanchnic interstitium, the mesenteric lymph and the peritoneal mesothelium seem to create an inflammatory axis that produces ascites. The functional comparison between the ascitic and the amniotic fluids would imply that, in the decompensated portal hypertensive syndrome, the abdominal mesothelium acquires properties of the amniotic membranes or amnion. In conclusion, the hypothetical comparison between the inflammatory portal hypertensive evolutive types and the evolutive phases of embryonic development could allow for translational research. PMID:22264837

Aller, Maria-Angeles; Heras, Natalia; Blanco-Rivero, Javier; Arias, Jose-Ignacio; Lahera, Vicente; Balfagón, Gloria; Arias, Jaime

2012-02-01

364

Spatial web service evaluator for supporting spatial web portal  

Microsoft Academic Search

Web services are key enabling technology for information interoperability and serve as the foundation for spatial Web portal. However, the quality of web services is different and becomes one of the challenges for deploying a spatial web portal. We conducted initial research and developed a spatial web service evaluator to assess the qualities of web services taken Open Geospatial Consortium

J. Li; C. Yang; H. Wu; Z. Li; M. Sun

2010-01-01

365

SEAL: a framework for developing SEmantic PortALs  

Microsoft Academic Search

The core idea of the Semantic Web is to make information accessible to human and software agents on a semantic basis. Hence, Web sites may feed directly from the Semantic Web exploiting the underlying structures for human and machine access. We have developed a domain-independent approach for developing semantic portals, viz. SEAL (SEmantic portAL), that exploits semantics for providing and

Nenad Stojanovic; Alexander Maedche; Steffen Staab; Rudi Studer; York Sure

2001-01-01

366

Coupled Deterministic-Monte Carlo Transport for Radiation Portal Modeling  

Microsoft Academic Search

Radiation portal monitors are being deployed, both domestically and internationally, to detect illicit movement of radiological materials concealed in cargo. Evaluation of the current and next generations of these radiation portal monitor (RPM) technologies is an ongoing process. 'Injection studies' that superimpose, computationally, the signature from threat materials onto empirical vehicle profiles collected at ports of entry, are often a

Leon E. Smith; Erin A. Miller; Richard S. Wittman; Mark W. Shaver

2008-01-01

367

Inflammation: a way to understanding the evolution of portal hypertension  

PubMed Central

Background Portal hypertension is a clinical syndrome that manifests as ascites, portosystemic encephalopathy and variceal hemorrhage, and these alterations often lead to death. Hypothesis Splanchnic and/or systemic responses to portal hypertension could have pathophysiological mechanisms similar to those involved in the post-traumatic inflammatory response. The splanchnic and systemic impairments produced throughout the evolution of experimental prehepatic portal hypertension could be considered to have an inflammatory origin. In portal vein ligated rats, portal hypertensive enteropathy, hepatic steatosis and portal hypertensive encephalopathy show phenotypes during their development that can be considered inflammatory, such as: ischemia-reperfusion (vasodilatory response), infiltration by inflammatory cells (mast cells) and bacteria (intestinal translocation of endotoxins and bacteria) and lastly, angiogenesis. Similar inflammatory phenotypes, worsened by chronic liver disease (with anti-oxidant and anti-enzymatic ability reduction) characterize the evolution of portal hypertension and its complications (hepatorenal syndrome, ascites and esophageal variceal hemorrhage) in humans. Conclusion Low-grade inflammation, related to prehepatic portal hypertension, switches to high-grade inflammation with the development of severe and life-threatening complications when associated with chronic liver disease.

Aller, Maria-Angeles; Arias, Jorge-Luis; Cruz, Arturo; Arias, Jaime

2007-01-01

368

Grid Portal Development for Sensing Data Retrieval and Processing  

Microsoft Academic Search

This paper presents our experiences developing grid portals for radar and sensor based applications. Underlying these gateways there are existing grid technologies such as Globus Toolkit 4.0.1 and Gridsphere. The grid portals provide secure and transparent access to applications dealing with data acquired from network of radar and sensors deployed in Puerto Rico, while implementing useful functionalities for data management

Diego Arias; Mariana Mendoza; Fernando Cintron; Kennie Cruz; Wilson Rivera

369

The PERSEUS Project: Creating Personalized Multimedia News Portal  

Microsoft Academic Search

This paper describes the Perseus project, which is devoted to developing techniques and tools for creating personalized multimedia news portals. The purpose of a personalized multimedia news portal is to provide relevant information, selected from newswire sites on the Internet and augmented by video clips automatically extracted from TV broadcasts, based on the user's preferences. To create such an intelligent

Victor Kulesh; Valery A. Petrushin; Ishwar K. Sethi

2001-01-01

370

Noninvasive assessment of portal hypertension in patients with cirrhosis.  

PubMed

Severe portal hypertension is responsible for complications and death. Although measurement of the hepatic venous pressure gradient is the most accurate method for evaluating the presence and severity of portal hypertension, this technique is considered invasive and is not routinely performed in all centers. Several noninvasive techniques have been proposed to measure portal hypertension. Certain methods evaluate elements related to the pathogenesis of portal hypertension through the measurement of hyperkinetic syndrome, for example, or they investigate the development of hepatic fibrosis through the measurement of increased intrahepatic vascular resistance. Other methods evaluate the clinical consequences of portal hypertension, such as the presence of esophageal varices or the development of portosystemic shunts. Methods evaluating increased hepatic vascular resistance are fairly accurate and mainly involve the detection of hepatic fibrosis by serum markers and transient elastography. The radiological assessment of hyperkinetic syndrome probably has value but is still under investigation. The assessment of severe portal hypertension by the presence of varices may be performed with simple tools such as biological assays, computed tomography, and esophageal capsules. More sophisticated procedures seem promising but are still under development. Screening tools for large populations must be simple, whereas more complicated procedures could help in the follow-up of already diagnosed patients. Although most of these noninvasive methods effectively identify severe portal hypertension, methods for diagnosing moderate portal hypertension need to be developed; this shows that further investigation is needed in this field. PMID:21274889

Thabut, Dominique; Moreau, Richard; Lebrec, Didier

2011-02-01

371

White Paper No. Fifteen The Enterprise Knowledge Portal Revisited  

Microsoft Academic Search

this report Gerry Murray, then IDC'sDirector of Knowledge Management Technologies (currently, IntegrationWare'sVice President of Business Strategy and Development) distinguishes four typesof corporate portals, including EKPs and offers some definitions (which I havediscussed previously in ("Defining Enterprise Information Portals," [5]).

Joseph M. Firestone

372

An identification and classification of enterprise portal functions and features  

Microsoft Academic Search

Enterprise portal is a type of new information system that can help companies and their employees to manage, share, and use previously disparate information. There are more than 60 vendors that are offering corporate portal solutions. With so many vendors, selecting the right one can be a difficult task. The primary objective of this research is to identify and evaluate

Jaydip M. Raol; Kai S. Koong; Lai C. Liu; Chun S. Yu

2002-01-01

373

An identification and classification of enterprise portal functions and features  

Microsoft Academic Search

Enterprise portal is a type of new information system that can help companies and their employees to manage, share, and use previously disparate information. The primary objective of this research is to identify and evaluate the functions and features in enterprise portal products. In particular, this study develops a simplified model that can be used for identifying and classifying the

Jaydip M. Raol; Kai S. Koong; Lai C. Liu; Chun S. Yu

2003-01-01

374

Stent Recanalization of Chronic Portal Vein Occlusion in a Child  

SciTech Connect

An 8-year-old boy with a 21/2 year history of portal hypertension and repeated bleedings from esophageal varices, was referred for treatment. The 3.5-cm-long occlusion of the portal vein was passed and the channel created was stabilized with a balloon-expandable stent; a portosystemic stent-shunt was also created. The portosystemic shunt closed spontaneously within 1 month, while the recanalized segment of the portal vein remained open. The pressure gradient between the intrahepatic and extrahepatic portal vein branches dropped from 17 mmHg to 0 mmHg. The pressure in the portal vein dropped from 30 mmHg to 17 mmHg and the bleedings stopped. The next dilation of the stent was performed 12 months later due to an increased pressure gradient; the gastroesophageal varices disappeared completely. Further dilation of the stent was planned after 2, 4, and 6 years.

Cwikiel, Wojciech [Department of Diagnostic Radiology, University Hospital, S-221 85 Lund (Sweden); Solvig, Jan [Department of Diagnostic Radiology, University Hospital, Skejby, DK-8200 Aarhus (Denmark); Schroder, Henrik [Department of Pediatric Medicine, University Hospital, Skejby, DK-8200 Aarhus (Denmark)

2000-07-15

375

Splanchnic-aortic inflammatory axis in experimental portal hypertension  

PubMed Central

Splanchnic and systemic low-grade inflammation has been proposed to be a consequence of long-term prehepatic portal hypertension. This experimental model causes minimal alternations in the liver, thus making a more selective study possible for the pathological changes characteristic of prehepatic portal hypertension. Low-grade splanchnic inflammation after long-term triple partial portal vein ligation could be associated with liver steatosis and portal hypertensive intestinal vasculopathy. In fact, we have previously shown that prehepatic portal hypertension in the rat induces liver steatosis and changes in lipid and carbohydrate metabolism similar to those produced in chronic inflammatory conditions described in metabolic syndrome in humans. Dysbiosis and bacterial translocation in this experimental model suggest the existence of a portal hypertensive intestinal microbiome implicated in both the splanchnic and systemic alterations related to prehepatic portal hypertension. Among the systemic impairments, aortopathy characterized by oxidative stress, increased levels of proinflammatory cytokines and profibrogenic mediators stand out. In this experimental model of long-term triple portal vein ligated-rats, the abdominal aortic proinflammatory response could be attributed to oxidative stress. Thus, the increased aortic reduced-nicotinamide-adenine dinucleotide phosphate [NAD(P)H] oxidase activity could be associated with reactive oxygen species production and promote aortic inflammation. Also, oxidative stress mediated by NAD(P)H oxidase has been associated with risk factors for inflammation and atherosclerosis. The splanchnic and systemic pathology that is produced in the long term after triple partial portal vein ligation in the rat reinforces the validity of this experimental model to study the chronic low-grade inflammatory response induced by prehepatic portal hypertension.

Aller, Maria-Angeles; de las Heras, Natalia; Nava, Maria-Paz; Regadera, Javier; Arias, Jaime; Lahera, Vicente

2013-01-01

376

Innovations in weapons detector portal technology  

NASA Astrophysics Data System (ADS)

Conventional concealed weapons detection portals, deployed worlwide at airports, governent buildings, courthouses, and other security critical facilities, are challenged by today's need for stringent and effective entry point screening. Modern threats, like exotic lightweight handguns, are becoming increasingly difficult to detect. Conventional portals do little, if anything, to assist security personnel in resolving the true nature of a potential threat. Systems that rely on blind operator intervention for alarm resolution invite too much human error so security is ultimately compromised. These systems do not instill confidence in the operator or the general public and thus do not present the necessary deterrent to those with sinister intent. Increased detection and improved discrimination do not adequately advance the utility of these security tools. High precision alarm object location information presented to the operator will result in the rapid resolution of the potential threat. Providing this information to the person under scrutiny via a static or streaming video image can enable self-divesting of the offending item without the need for security personnel intervention. Robust detection, effective discrimination, and precise object location information will result in superior entry point screening operations.

Perry, Alexander R.; Czipott, Peter V.; Beevor, Simon P.; Hanley, Gerard A.

2003-09-01

377

Portal Hypertension as Immune Mediate Disease  

PubMed Central

Context: Portal Hypertension (PH) is a progressive complication due to chronic liver disease. In addition to pathophysiologic changes in the micro-circulation, in PH are established fibrous tissue (periportal fibrous septal) and regenerative hyperplastic nodules (from micro- to macro-nodules) promoting hepatic architectural distortion. Evidence Acquisition: A literature search of electronic databases was undertaken for the major studies published from 1981 to today. The databases searched were: PubMed, EMBASE, Orphanet, Midline and Cochrane Library. We used the keywords: "portal hypertension, children, immune system, endocrine system, liver fibrosis". Results: It is believed that PH results from three “phenotype”: ischemia-reperfusion, involving nervous system (NS); edema and oxidative damage, involving immune system; inflammation and angiogenesis, involving endocrine system. However, its exact cause still underdiagnosed and unknown. Conclusions: PH is a dynamic and potentially reversible process. Researchers have tried to demonstrate mechanisms underlying PH and its related-complications. This review focuses on the current knowledge regarding the pathogenesis, and immune, endocrine-metabolic factors of disease. The strong positive association between immune system and development of PH could be efficient to identify non-invasive markers of disease, to modify prognosis of PH, and to development and application of specific and individual anti-inflammatory therapy.

Manti, Sara; Marseglia, Lucia; D'Angelo, Gabriella; Filippelli, Martina; Cuppari, Caterina; Gitto, Eloisa; Romano, Claudio; Arrigo, Teresa; Salpietro, Carmelo

2014-01-01

378

Portal copper transport in rats by albumin  

SciTech Connect

The distribution of newly absorbed copper among serum proteins obtained from the portal circulation of rats was examined by conventional and high-performance gel filtration chromatography, affinity chromatography, and Western blotting. Within 10-30 min after being administered by gavage or directly into the intestine, /sup 67/Cu and /sup 64/Cu, respectively, were recovered in the albumin fraction. By 8 h after administration of the radionuclides, virtually all of the radioactivity was found with ceruloplasmin. Affigel blue fractionation and subsequent Superose-6 chromatography further demonstrated that all of the copper in the albumin-containing fractions was in fact bound to this protein rather than high molecular weight moieties. Vascular perfusion of the isolated rat intestine, where /sup 64/Cu was infused into the lumen, showed that newly absorbed /sup 64/Cu in the vascular perfusate collected from the cannulated portal vein was associated with albumin. Uptake of radioactivity by isolated rat liver parenchymal cells from medium containing rat serum with /sup 67/Cu bound to albumin was demonstrated. In vitro binding of /sup 64/Cu to serum proteins that were transferred to nitrocellulose by Western blotting techniques showed that albumin is essentially the only protein that binds appreciable amounts of copper. The data suggest that albumin is the plasma protein that is responsible for the initial transport of copper after absorption.

Gordon, D.T.; Leinart, A.S.; Cousins, R.J.

1987-03-01

379

Smart Cities: New York. Electronic Education for the New Millennium.  

ERIC Educational Resources Information Center

This pedagogical framework describes how the New York City Board of Education plans to improve education using information technologies. By providing advanced Internet services connecting students and their families, as well as teachers, schools staff, and the interested public, to a high-quality educational ISP/Portal, available to anyone at any…

McClintock, Robert

380

Application of a fuzzy pattern classifier to decision making in portal verification of radiotherapy  

Microsoft Academic Search

With the large volume of electronic portal images acquired and stringent time constraints, it is no longer feasible to follow the convention whereby the radiation oncologist reviews and approves or rejects all portals. For that purpose we have developed a portal image classifier based on the fuzzy k-nearest neighbour ( k-NN) algorithm. Each portal image is represented by a feature

Konrad Leszczynski; Scott Cosby; Randall Bissett; Daniel Provost; Susan Boyko; Stephen Loose; Eding Mvilongo

1999-01-01

381

Isolation of Rat Portal Fibroblasts by In situ Liver Perfusion  

PubMed Central

Liver fibrosis is defined by the excessive deposition of extracellular matrix by activated myofibroblasts. There are multiple precursors of hepatic myofibroblasts, including hepatic stellate cells, portal fibroblasts and bone marrow derived fibroblasts 1. Hepatic stellate cells have been the best studied, but portal fibroblasts are increasingly recognized as important contributors to the myofibroblast pool, particularly in biliary fibrosis 2. Portal fibroblasts undergo proliferation in response to biliary epithelial injury, potentially playing a key role in the early stages of biliary scarring 3-5. A method of isolating portal fibroblasts would allow in vitro study of this cell population and lead to greater understanding of the role portal fibroblasts play in biliary fibrosis. Portal fibroblasts have been isolated using various techniques including outgrowth 6, 7 and liver perfusion with enzymatic digestion followed by size selection 8. The advantage of the digestion and size selection technique compared to the outgrowth technique is that cells can be studied without the necessity of passage in culture. Here, we describe a modified version of the original technique described by Kruglov and Dranoff 8 for isolation of portal fibroblasts from rat liver that results in a relatively pure population of primary cells.

Wen, Jessica W.; Olsen, Abby L.; Perepelyuk, Maryna; Wells, Rebecca G.

2012-01-01

382

Role of endothelial-mesenchymal transition in idiopathic portal hypertension.  

PubMed

Idiopathic portal hypertension (IPH) is a condition of non-cirrhotic portal hypertension without a known cause of liver disease. Obliterative portal venopathy is regarded as the primary lesion, which is responsible for the pre-sinusoidal block of hepatic blood flow leading to the development of IPH. The disease pathogenesis of IPH seems to be heterogeneous, and the pathogenic mechanisms of obliterative portal venopathy have not been fully understood. Owing to the limited understanding of the disease pathogenesis, the treatment of IPH is still largely supportive. Recently, endothelial dysfunction has been documented during the development of portal hypertension, and its contribution to IPH is being analyzed. Endothelial-mesenchymal transition (EndMT) is a phenomenon whereby vascular endothelial cells acquire myofibroblastic features characterized by an ability to express mesenchymal cell products that are related to tissue fibrogenesis. In addition to cardiovascular development, there is increasing evidence showing that EndMT is likely to be involved in a variety of fibrotic diseases, such as cardiac, pulmonary, and renal fibrosis. This article reviews the recent progress in studies of the pathogenic mechanisms of IPH in terms of endothelial dysfunction of portal veins. In particular, the role of EndMT in obliterative portal venopathy of IPH is highlighted and discussed. PMID:23275299

Sato, Yasunori; Nakanuma, Yasuni

2013-02-01

383

Endothelial dysfunction in the regulation of portal hypertension  

PubMed Central

Portal hypertension is caused by an increased intrahepatic resistance, a major consequence of cirrhosis. Endothelial dysfunction in liver sinusoidal endothelial cells (LSECs) decreases the production of vasodilators, such as nitric oxide (NO) and favors vasoconstriction. This contributes to an increased vascular resistance in the intrahepatic/sinusoidal microcirculation. Portal hypertension, once developed, causes endothelial cell (EC) dysfunction in the extrahepatic, i.e. splanchnic and systemic, circulation. Unlike LSEC dysfunction, EC dysfunction in the splanchnic and systemic circulation overproduces vasodilator molecules, leading to arterial vasodilatation. In addition, portal hypertension leads to the formation of portosystemic collateral vessels. Both arterial vasodilatation and portosystemic collateral vessel formation exacerbate portal hypertension by increasing the blood flow through the portal vein. Pathologic consequences, such as esophageal varices and ascites, result. While the sequence of pathological vascular events in cirrhosis and portal hypertension have been elucidated, the underlying cellular and molecular mechanisms causing EC dysfunctions are not yet fully understood. This review article summarizes the current cellular and molecular studies on EC dysfunctions found during the development of cirrhosis and portal hypertension with a focus on intra- and extrahepatic circulation. The article ends by discussing future directions of study for EC dysfunctions.

Iwakiri, Yasuko

2013-01-01

384

A multiple-detector Radioactive Material Detection Spectroscopic (RMDS) portal  

NASA Astrophysics Data System (ADS)

This paper describes an optimization process for a Radioactive Material Detection Spectroscopic (RMDS) portal, designed to detect and identify radioactive materials concealed inside cargo containers. The system is based on a combination of conventional 3 in. NaI(Tl) gamma detectors and 3He neutron detection tubes. The basic concept and the advantages of the new segmented spectroscopic detector approach are presented with several algorithms that were developed to enhance the detection capability of the portal and improve the signal to noise ratio. The results of field tests performed in several locations in Israel are also presented. The RMDS portal fully meets the demands of new ANSI Standard 42.38 for spectroscopic portals. In addition, the portal has some unique features, such as the ability to find the exact location of a point source inside the cargo and the ability to differentiate between a point source and Naturally Occurring Radioactive Materials (NORM) radiation. During the tests, the RMDS portal was compared to other detection systems, such as a PVT-based portal and a handheld spectroscopic HPGe detector. In these tests, the RMDS system was found to have a unique technique for background subtraction, which results in a higher detection sensitivity.

Yaar, Ilan; Peysakhov, Ilya

2013-06-01

385

VisPortal: Deploying grid-enabled visualization tools through a web-portal interface  

Microsoft Academic Search

The LBNL\\/NERSC Visportal effort explores ways to deliver advanced Remote\\/Distributed Visualization (RDV) capabilities through a Grid-enabled web-portal interface. The effort focuses on latency tolerant distributed visualization algorithms, GUI designs that are more appropriate for the capabilities of web interfaces, and refactoring parallel-distributed applications to work in a N-tiered component deployment strategy. Most importantly, our aim is to leverage commercially-supported technology

Wes Bethel; Cristina Siegerist; John Shalf; Praveenkumar Shetty; T. J. Jankun-Kelly; Kwan-Liu Ma

2003-01-01

386

Dosimetric investigation and portal dose image prediction using an amorphous silicon electronic portal imaging device.  

PubMed

A two step algorithm to predict portal dose images in arbitrary detector systems has been developed recently. The current work provides a validation of this algorithm on a clinically available, amorphous silicon flat panel imager. The high-atomic number, indirect amorphous silicon detector incorporates a gadolinium oxysulfide phosphor scintillating screen to convert deposited radiation energy to optical photons which form the portal image. A water equivalent solid slab phantom and an anthropomorphic phantom were examined at beam energies of 6 and 18 MV and over a range of air gaps (approximately 20-50 cm). In the many examples presented here, portal dose images in the phosphor were predicted to within 5% in low-dose gradient regions, and to within 5 mm (isodose line shift) in high-dose gradient regions. Other basic dosimetric characteristics of the amorphous silicon detector were investigated, such as linearity with dose rate (+/- 0.5%), repeatability (+/- 2%), and response with variations in gantry rotation and source to detector distance. The latter investigation revealed a significant contribution to the image from optical photon spread in the phosphor layer of the detector. This phenomenon is generally known as "glare," and has been characterized and modeled here as a radially symmetric blurring kernel. This kernel is applied to the calculated dose images as a convolution, and is successfully demonstrated to account for the optical photon spread. This work demonstrates the flexibility and accuracy of the two step algorithm for a high-atomic number detector. The algorithm may be applied to improve performance of dosimetric treatment verification applications, such as direct image comparison, backprojected patient dose calculation, and scatter correction in megavoltage computed tomography. The algorithm allows for dosimetric applications of the new, flat panel portal imager technology in the indirect configuration, taking advantage of a greater than tenfold increase in detector sensitivity over a direct configuration. PMID:11439488

McCurdy, B M; Luchka, K; Pistorius, S

2001-06-01

387

Portal glucose delivery stimulates muscle but not liver protein metabolism  

PubMed Central

Portal vein glucose delivery (the portal glucose signal) stimulates glucose uptake and glycogen storage by the liver, whereas portal amino acid (AA) delivery (the portal AA signal) induces an increase in protein synthesis by the liver. During a meal, both signals coexist and may interact. In this study, we compared the protein synthesis rates in the liver and muscle in response to portal or peripheral glucose infusion during intraportal infusion of a complete AA mixture. Dogs were surgically prepared with hepatic sampling catheters and flow probes. After a 42-h fast, they underwent a 3-h hyperinsulinemic (4× basal) hyperglucagonemic (3× basal) hyperglycemic (?160 mg/dl) hyperaminoacidemic (hepatic load 1.5× basal; delivered intraportally) clamp (postprandial conditions). Glucose was infused either via a peripheral (PeG; n = 7) or the portal vein (PoG; n = 8). Protein synthesis was assessed with a primed, continuous [14C]leucine infusion. Net hepatic glucose uptake was stimulated by portal glucose infusion (+1 mg·kg?1·min?1, P < 0.05) as expected, but hepatic fractional AA extraction and hepatic protein synthesis did not differ between groups. There was a lower arterial AA concentration in the PoG group (?19%, P < 0.05) and a significant stimulation (+30%) of muscle protein synthesis associated with increased expression of LAT1 and ASCT2 AA transporters and p70S6 phosphorylation. Concomitant portal glucose and AA delivery enhances skeletal muscle protein synthesis compared with peripheral glucose and portal AA delivery. These data suggest that enteral nutrition support may have an advantage over parenteral nutrition in stimulating muscle protein synthesis.

Coate, Katie C.; Dardevet, Dominique; Farmer, Ben; Donahue, E. Patrick; Williams, Phillip E.; Cherrington, Alan D.; Moore, Mary Courtney

2012-01-01

388

Portal glucose delivery stimulates muscle but not liver protein metabolism.  

PubMed

Portal vein glucose delivery (the portal glucose signal) stimulates glucose uptake and glycogen storage by the liver, whereas portal amino acid (AA) delivery (the portal AA signal) induces an increase in protein synthesis by the liver. During a meal, both signals coexist and may interact. In this study, we compared the protein synthesis rates in the liver and muscle in response to portal or peripheral glucose infusion during intraportal infusion of a complete AA mixture. Dogs were surgically prepared with hepatic sampling catheters and flow probes. After a 42-h fast, they underwent a 3-h hyperinsulinemic (4× basal) hyperglucagonemic (3× basal) hyperglycemic (?160 mg/dl) hyperaminoacidemic (hepatic load 1.5× basal; delivered intraportally) clamp (postprandial conditions). Glucose was infused either via a peripheral (PeG; n = 7) or the portal vein (PoG; n = 8). Protein synthesis was assessed with a primed, continuous [(14)C]leucine infusion. Net hepatic glucose uptake was stimulated by portal glucose infusion (+1 mg·kg(-1)·min(-1), P < 0.05) as expected, but hepatic fractional AA extraction and hepatic protein synthesis did not differ between groups. There was a lower arterial AA concentration in the PoG group (-19%, P < 0.05) and a significant stimulation (+30%) of muscle protein synthesis associated with increased expression of LAT1 and ASCT2 AA transporters and p70S6 phosphorylation. Concomitant portal glucose and AA delivery enhances skeletal muscle protein synthesis compared with peripheral glucose and portal AA delivery. These data suggest that enteral nutrition support may have an advantage over parenteral nutrition in stimulating muscle protein synthesis. PMID:23011060

Kraft, Guillaume; Coate, Katie C; Dardevet, Dominique; Farmer, Ben; Donahue, E Patrick; Williams, Phillip E; Cherrington, Alan D; Moore, Mary Courtney

2012-11-15

389

Portal-drained visceral metabolism of 3-hydroxybutyrate in sheep.  

PubMed

The present experiment was conducted to study the impact of portal-drained visceral (PDV) metabolism of arterial 3-OH-butyrate on estimates of the portal recovery of intraruminally infused butyrate. Three multicatheterized and rumen-fistulated Leicester ewes were subjected to three intraruminal infusion protocols in a Latin square design: control (C; water), butyrate (B; 20 mmol x h(-1)), and butyrate (20 mmol x h(-1)) + propionate (40 mmol x h(-1)) (BP). During the experiments, the sheep were infused with 1,2,3,4-13C4-D-3-OH-butyrate in a mesenteric vein. Portal recoveries of intraruminally infused butyrate and propionate were obtained by comparing Treatments B and BP, respectively, with Treatment C. The portal net appearance of butyrate and the portal net appearance of butyrate + 3-OH-butyrate accounted for 20 +/- 2% and 48 +/- 14% of intraruminally infused butyrate, respectively. Metabolism by the PDV tissues accounted for 32 to 44% of the whole-body irreversible loss rate of 3-OH-butyrate (12.0 to 24.7 +/- 0.5 mmol x h(-1)). The portal net appearance of butyrate plus the unidirectional PDV output of 3-OH-butyrate accounted for 62 +/- 5% of the intraruminally infused butyrate, and this estimate was comparable to the portal recovery of intraruminally infused propionate (62 +/- 7%). The results from the present study show that the extent of epithelial butyrate oxidation is overestimated and the portal recovery of butyrate carbon underestimated if only portal net appearance rates of butyrate and 3-OH-butyrate are considered. PMID:10947112

Kristensen, N B; Pierzynowski, S G; Danfaer, A

2000-08-01

390

Spontaneous Portoazygos Shunt in a Patient with Portal Hypertension  

PubMed Central

We present a case of spontaneous portoazygos shunt in a patient with liver cirrhosis and portal hypertension. The shunt was incidentally detected by abdominal magnetic resonance imaging for routine evaluation of liver cirrhosis. Multiplanar reconstruction images demonstrated the portal vein communicating with the azygos vein that was dilated and tortuous along its course to the mediastinum. Although there has been a case of congenital portoazygos shunt reported in a neonate with multiple congenital anomalies, to the best of our knowledge, this is the first case of spontaneous portoazygos shunt developed in an adult with portal hypertension.

Gebrael, Jacob; Yu, Hyeon; Hyslop, William Brian

2013-01-01

391

Pan-colonic varices and idiopathic portal hypertension.  

PubMed

Varices of the lower GI tract, although rare, are a known cause of hematochezia. They are usually found in a segmental distribution and are often associated with cirrhosis, portal hypertension, or portal vein obstruction. We present the case of a 43-year-old male with no personal or family history of liver disease, who experienced recurrent rectal bleeding over a 27-year period. Colonoscopy revealed varices from the rectum to the cecum confirmed with endoscopic ultrasound, while esogastroduodenoscopy, small bowel series, and CT were all normal. Portal hypertension was present without an identifiable cause. PMID:17925930

Francois, Fritz; Tadros, Caroline; Diehl, David

2007-09-01

392

3. East portal of Tunnel 27, view to northeast from ...  

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

3. East portal of Tunnel 27, view to northeast from atop cut bank, 210mm lens. This view shows to good effect the original construction of the Harriman period tunnels, which were concreted fifty feet in from the portals with the balance being timber lined. In 1965 the east end of the tunnel collapsed, with the result that approximately 115 feet of the east end was 'daylighted' and the original east portal and concreted end were left in place, free-standing as seen here. - Central Pacific Transcontinental Railroad, Tunnel No. 27, Milepost 133.9, Applegate, Placer County, CA

393

Gastric adenocarcinoma inducing portal hypertension: A rare presentation  

PubMed Central

Advanced gastric cancer usually presents with symptoms due to direct extension into adjacent viscera, distant metastases from lymphatic or hematogenic dissemination and peritoneal seeding. However, portal hypertension as a presentation of metastatic gastric cancer is rare and usually seen in association with other malignancies, e.g. hepatocellular and pancreatic carcinoma. We report a case of signet ring adenocarcinoma of the stomach that presented with esophageal and duodenal varices and bleeding due to portal hypertensive gastropathy. Pagetoid spread of cancer cells likely caused early metastasis and the unusual presentation. We also discussed the pathophysiology of development of portal hypertension in association with malignancies.

Ghosh, Pradipta; Miyai, Katsumi; Chojkier, Mario

2007-01-01

394

GRACE Educational Material  

NSDL National Science Digital Library

This portal provides access to learning materials derived from the Gravity Recovery and Climate Experiment (GRACE) mission. These include a large set of activities for students at all levels, tested and aligned to the national education standards. Topics include satellites and gravity; the weather, climate, and atmosphere; and the oceans. There is also a coloring and activity book, posters and illustrations describing the mission, a mission brochure, and a fact sheet.

395

Middle School Portal: Measurement Sliced and Diced  

NSDL National Science Digital Library

This standards-based module for the middle grades offers an array of online lessons, simulations, and activities to use in constructing a full unit on measurement. It was developed to help teachers provide scaffolding in areas where students often struggle with abstract ideas. It gives links that provide hands-on experiences with measuring, using scale and proportionality, and estimating. Each concept is supported with activities that use real-life applications where students make choices of which tools and units to use in problem solving. Editor's Note: Of the 25+ links in this module, we discovered that 6 did not work. As a whole, this item meets all other criteria as an exemplary resource for middle school learners. This resource is part of the Middle School Portal, the math/science pathway of the National Science Digital Library.

Spicer, Judy

2011-02-04

396

Vibration of x-braced portal frames  

NASA Astrophysics Data System (ADS)

Both free and forced vibrations of elastic X-braced portal frames are investigated. Solutions of the Euler-Bernoulli equation for the transverse vibration coupled with the axial vibration are used. The first five natural frequencies, with the angle of inclination, ?, of the bracing bars ranging from 15° to 75°, with different slenderness ratios, R, of the columns, and different stiffness of the floor beam and crossing bars, are presented along with two sets of the natural modes of the frames with ? = 45°. For the forced vibration, the dynamic responses of the frames with a concentrated horizontal time dependent force acting at a top joint are studied. The responses of the frames with ? = 45° are analyzed in detail.

Chang, C. H.; Wang, P. Y.; Lin, Y. W.

1987-09-01

397

Radiation portal monitor system and method  

DOEpatents

A portal monitoring system has a cosmic ray charged particle tracker with a plurality of drift cells. The drift cells, which can be for example aluminum drift tubes, can be arranged at least above and below a volume to be scanned to thereby track incoming and outgoing charged particles, such as cosmic ray muons, whilst also detecting gamma rays. The system can selectively detect devices or materials, such as iron, lead, gold and/or tungsten, occupying the volume from multiple scattering of the charged particles passing through the volume and can also detect any radioactive sources occupying the volume from gamma rays emitted therefrom. If necessary, the drift tubes can be sealed to eliminate the need for a gas handling system. The system can be employed to inspect occupied vehicles at border crossings for nuclear threat objects.

Morris, Christopher (Los Alamos, NM); Borozdin, Konstantin N. (Los Alamos, NM); Green, J. Andrew (Los Alamos, NM); Hogan, Gary E. (Los Alamos, NM); Makela, Mark F. (Los Alamos, NM); Priedhorsky, William C. (Los Alamos, NM); Saunders, Alexander (Los Alamos, NM); Schultz, Larry J. (Los Alamos, NM); Sossong, Michael J. (Los Alamos, NM)

2009-12-15

398

A Modeling Environment for Patient Portals  

PubMed Central

Clinical Information Systems (CIS) are complex environments that integrate information technologies, humans, and patient data. Given the sensitivity of patient data, federal regulations require health care providers to define privacy and security policies and to deploy enforcement technologies. The introduction of model-based design techniques, combined with the development of high-level modeling abstractions and analysis methods, provide a mechanism to investigate these concerns by conceptually simplifying CIS without sacrificing expressive power. This work introduces the Model-based Design Environment for Clinical Information Systems (MODECIS), which is a graphical design environment that assists CIS architects in formalizing systems and services. MODECIS leverages Service-Oriented Architectures to create realistic system models as abstractions. MODECIS enables the analysis of legacy architectures and the design and simulation of future CIS. We present the feasibility of MODECIS by modeling operations, such as user authentication, of MyHealth@Vanderbilt, a real world patient portal in use at the Vanderbilt University Medical Center.

Duncavage, Sean; Mathe, Janos; Werner, Jan; Malin, Bradley A.; Ledeczi, Akos; Sztipanovits, Janos

2007-01-01

399

A modeling environment for patient portals.  

PubMed

Clinical Information Systems (CIS) are complex environments that integrate information technologies, humans, and patient data. Given the sensitivity of patient data, federal regulations require health care providers to define privacy and security policies and to deploy enforcement technologies. The introduction of model-based design techniques, combined with the development of high-level modeling abstractions and analysis methods, provide a mechanism to investigate these concerns by conceptually simplifying CIS without sacrificing expressive power. This work introduces the Model-based Design Environment for Clinical Information Systems (MODECIS), which is a graphical design environment that assists CIS architects in formalizing systems and services. MODECIS leverages Service-Oriented Architectures to create realistic system models as abstractions. MODECIS enables the analysis of legacy architectures and the design and simulation of future CIS. We present the feasibility of MODECIS by modeling operations, such as user authentication, of MyHealth@Vanderbilt, a real world patient portal in use at Vanderbilt University Medical Center. PMID:18693826

Duncavage, Sean; Mathe, Janos; Werner, Jan; Malin, Bradley A; Ledeczi, Akos; Sztipanovits, Janos

2007-01-01

400

Cascades Volcano Observatory: Educational Outreach  

NSDL National Science Digital Library

This portal provides access to educational materials produced by the Cascades Volcano Observatory. The items include news and current events, information on current activity of the Cascades volcanoes, and emergency information in the event of an eruption. There are also frequently-asked-questions features, a glossary, and links to reading materials such as fact sheets and reports of the United States Geological Survey (USGS). For educators and students, there are activities, special features, posters, videos, and slide shows.

401

Renoportal Anastomosis as a Rescue Technique in Postoperative Portal Thrombosis in Liver Transplantation  

Microsoft Academic Search

Renoportal anastomosis has been used as the primary portal revascularization technique in grade 4 portal thrombosis, but never after posttransplant portal thrombosis. A cirrhotic patient with hepatocellular carcinoma and partial portal thrombosis of two-thirds of the lumen was transplanted. The thrombus was removed and good portal flow obtained upon reperfusion (2.8 L\\/min). On the ninth postoperative day Doppler ultrasound revealed

I. M. González-Pinto; A. Miyar; C. García-Bernardo; L. Vázquez; L. Barneo; E. Cortés; P. Díaz; N. Gutiérrez; L. Fernández; M. Moreno

2009-01-01

402

Intraoperative stent placement in the portal vein during or after liver transplantation.  

PubMed

The purpose of this research was to evaluate the intermediate effectiveness of intraoperative portal vein stent placement for portal venous stenosis in liver transplantation. We attempted intraoperative portal vein stent placement in 44 portal venous anastomotic stenoses in 36 patients. All patients underwent stent placement via either the inferior or superior mesenteric vein. A total of 22 patients underwent portal vein stent placement simultaneously with liver transplantation, and 14 patients underwent stent placement 1-25 days (mean 5.93 days) after liver transplantation. Of the 22 patients, there was portal vein occlusion in 3 patients and small portal vein (<6 mm) in 10 patients (2.5-5.7 mm; mean size 3.9 mm). Patient follow-up included clinical and laboratory data collection, Doppler ultrasonography (US), and computed tomography (CT). Intraoperative portal vein stent placement was technically successful in all of our study patients, even in 6 patients with total occlusion of the portal vein. A total of 10 study patients underwent thrombectomy of the portal vein, 1 underwent patient portosystemic shunt ligation, and 7 patients had both procedures simultaneously. Portal venous patency has been maintained for 0-56 months (mean 16 months) in 42 (95%) of the 44 stent placements. In conclusion, intraoperative portal vein stent placement is an effective and long lasting treatment modality for treat portal venous stenosis, especially in patients with portal vein occlusion or small sized portal vein. PMID:17663391

Kim, Yong-Jae; Ko, Gi-Young; Yoon, Hyun-Ki; Shin, Ji-Hoon; Ko, Heung-Kyu; Sung, Kyu-Bo

2007-08-01

403

Social disparities in internet patient portal use in diabetes: evidence that the digital divide extends beyond access  

PubMed Central

The authors investigated use of the internet-based patient portal, kp.org, among a well-characterized population of adults with diabetes in Northern California. Among 14?102 diverse patients, 5671 (40%) requested a password for the patient portal. Of these, 4311 (76%) activated their accounts, and 3922 (69%), logged on to the patient portal one or more times; 2990 (53%) participants viewed laboratory results, 2132 (38%) requested medication refills, 2093 (37%) sent email messages, and 835 (15%) made medical appointments. After adjustment for age, gender, race/ethnicity, immigration status, educational attainment, and employment status, compared to non-Hispanic Caucasians, African–Americans and Latinos had higher odds of never logging on (OR 2.6 (2.3 to 2.9); OR 2.3 (1.9 to 2.6)), as did those without an educational degree (OR compared to college graduates, 2.3 (1.9 to 2.7)). Those most at risk for poor diabetes outcomes may fall further behind as health systems increasingly rely on the internet and limit current modes of access and communication.

Karter, Andrew J; Liu, Jennifer Y; Adler, Nancy E; Nguyen, Robert; Lopez, Andrea; Schillinger, Dean

2011-01-01

404

9. PORTAL ELEVATION, SOUTHWEST END OF BRIDGE, SHOWING COMPOSITION OF ...  

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

9. PORTAL ELEVATION, SOUTHWEST END OF BRIDGE, SHOWING COMPOSITION OF TRUSS MEMBERS ALONG THE TRUSS - Seddon Island Scherzer Rolling Lift Bridge, Spanning Garrison Channel from Tampa to Sedden Island, Tampa, Hillsborough County, FL

405

6. Detail of central Samson post showing portal struts and ...  

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

6. Detail of central Samson post showing portal struts and paired stay rods; note riveted girder at bottom center; view to southeast. - Summer Street Bridge, Spanning Reserved Channel, Boston, Suffolk County, MA

406

New ADL Registry. ADL Registry Web Portal Changes.  

National Technical Information Service (NTIS)

ADL Registry Web Portal Changes: ADL Registry Information Site - News and Announcements - Frequently Asked Questions (FAQ) - Documentation - Events and Event registration. Search - Contribute - Register Repositories and Contributors - Practice Registry - ...

E. Sakmar J. Haag L. Lannom

2009-01-01

407

46. View of access portal holes drilled to place steel ...  

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

46. View of access portal holes drilled to place steel ties in Pleasant Dam buttresses. Photographer unknown, 1935. Source: Huber Collection. - Waddell Dam, On Agua Fria River, 35 miles northwest of Phoenix, Phoenix, Maricopa County, AZ

408

Outsourcing the Portal: Another Branch in the Decision Tree.  

ERIC Educational Resources Information Center

Discussion of the management of information resources in organizations focuses on the use of portal technologies to update intranet capabilities. Considers application outsourcing decisions, reviews benefits (including reducing costs) as well as concerns, and describes application service providers (ASPs). (LRW)

McMahon, Tim

2000-01-01

409

Detail of track girder, south portal and granite piers at ...  

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

Detail of track girder, south portal and granite piers at low tide. View Northwest - New York, New Haven & Hartford Railroad, Fort Point Channel Rolling Lift Bridge, Spanning Fort Point Channel, Boston, Suffolk County, MA

410

SOUTH PORTAL FROM DISTANCE, LOOKING 300 DEGREES NORTHWEST. Holliwell ...  

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

SOUTH PORTAL FROM DISTANCE, LOOKING 300 DEGREES NORTHWEST. - Holliwell Bridge, Spanning Middle River at Holliwell Bridge Road (now bypassed) (changed from Spanning Middle River at county road), Winterset, Madison County, IA

411

Numerical simulation of photon response in portal monitors  

SciTech Connect

The adjoint technique has been applied to accurately and economically predict the response of a portal monitor to photon emissions below about 1.5 MeV, thus encompassing those sources generally of interest in nuclear safeguards applications. The adjoint source was defined as the product of the total attenuation coefficient and an experimentally determined efficiency factor, which accounts for the performance characteristics of the signal-processing system. The efficiency factor was determined from a combination of data obtained from a single NE-102 scintillator and results from corresponding three-dimensional forward MORSE calculations. A prototype walk-through portal was then fabricated with four identical NE-102 scintillators. Adjoint MORSE calculations were performed to obtain net count rates for various sources within this portal. These results were compared to experimental data and were found to agree to well within 10%. The photon response within the portal detection volume was then characterized by a series of MORSE calculations.

Nason, R.R.

1984-11-01

412

3. VIEW OF WEST PORTAL. SAME POSITION AS NO. 1 ...  

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

3. VIEW OF WEST PORTAL. SAME POSITION AS NO. 1 SHOWING RETAINING WALL BELOW ROAD. - Big Oak Flat Road Tunnel No. 1, Through mountain spur on New Big Oak Flat Road, Yosemite Village, Mariposa County, CA

413

38. VIEW OF CONCRETE PORTAL OF MAIN DRIFT OPENING WITH ...  

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

38. VIEW OF CONCRETE PORTAL OF MAIN DRIFT OPENING WITH ERIC DELONY SERVING AS A SCALE FIGURE - Kaymoor Coal Mine, South side of New River, upstream of New River Gorge Bridge, Fayetteville, Fayette County, WV

414

82. VIEW SHOWING PLACEMENT OF THE END PORTAL, LOOKING SOUTH, ...  

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

82. VIEW SHOWING PLACEMENT OF THE END PORTAL, LOOKING SOUTH, April 2, 1935. (Steamer Delta King is moored at River Lines Terminal.) - Sacramento River Bridge, Spanning Sacramento River at California State Highway 275, Sacramento, Sacramento County, CA

415

4. APPROACH OF CARRS MILL ROAD TO THE SOUTH PORTAL ...  

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

4. APPROACH OF CARRS MILL ROAD TO THE SOUTH PORTAL OF THE MITCHELLS MILL BRIDGE; VIEW TO NORTH. - Mitchell's Mill Bridge, Spanning Winter's Run on Carrs Mill Road, west of Bel Air, Bel Air, Harford County, MD

416

Detail of portal of Span No. 9, showing roadway deck, ...  

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

Detail of portal of Span No. 9, showing roadway deck, guardrails and truss, view to east - Gillespie Dam Bridge, Spanning Gila River on Old US 80 Highway, south of Gillespie Dam, Arlington, Maricopa County, AZ

417

Portal Vein Thrombosis Following Laparoscopic Sleeve Gastrectomy for Morbid Obesity  

PubMed Central

Introduction: Portal vein thrombosis has been documented after laparoscopic general surgery and has been uncommonly observed after laparoscopic bariatric surgery. Among bariatric operations, the sleeve gastrectomy is being performed with ever-increasing frequency. Here we report the case of a man who presented with portal vein thrombosis after laparoscopic sleeve gastrectomy. Case Description: A 41-y-old man underwent an uneventful laparoscopic sleeve gastrectomy for the treatment of morbid obesity, and presented on postoperative day 10 with nonfocal abdominal pain, nausea, vomiting, and leukocytosis. Computed tomography revealed portal vein thrombosis, which was found in the setting of Clostridium difficile colitis. Discussion: Portal vein thrombosis may be identified with increasing frequency as the number of laparoscopic bariatric operations continues to increase. A high index of suspicion is necessary to diagnose this rare, but potentially lethal, complication.

Rosenberg, Jacob M.; Tedesco, Maureen; Yao, Dorcas C.

2012-01-01

418

20. VIEW AT SOUTH PORTAL OF TUNNEL SHOWING COMPRESSOR, AIR ...  

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

20. VIEW AT SOUTH PORTAL OF TUNNEL SHOWING COMPRESSOR, AIR HOIST, CONCRETE SKIP, HIGH LINE TO SOUTH CABLE ANCHOR DEADMAN AND ROCK FILL FOR SOUTH APPROACH TRAIL - Kaibab Trail Suspension Bridge, Spanning Colorado River, Grand Canyon, Coconino County, AZ

419

26. Photocopy of photograph. VIEW, LOOKING SOUTHWEST, SHOWING NORTH PORTAL. ...  

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

26. Photocopy of photograph. VIEW, LOOKING SOUTHWEST, SHOWING NORTH PORTAL. Photographer unknown, ca. 1932. (Print in possession of the Washington County Highway Department.) - Hegeman-Hill Street Bridge, Spanning Batten Kill, .65 mile West of Greenwich, Easton, Washington County, NY

420

Detection of liposomes in portal blood following oral administration  

SciTech Connect

125Iodine-labeled human immunoglobulin G-encapsulated dipalmitoyl phosphatidylcholine liposomes were prepared with or without asialoganglioside. Distribution of radioactivity following the oral administration of these liposomes in rats was checked in liver and in blood of the portal vein and heart. Gel filtration of plasma from the portal vein showed the presence of intact liposomes and protein. In contrast, neither liposomes nor protein were detected in cardiac blood but only lower molecular weight materials. The presence of liposomes in portal blood was further suggested from experiments using 6-carboxyfluorescein-entrapped liposomes. The level of liposomes in portal venous blood plasma was found to be lower in asialoganglioside liposomes. But this level could be increased substantially, almost to that in liposomes without asialoganglioside, by injection (iv) of asialofetuin.

Das, N.; Das, M.K.; Bachhawat, B.K.

1984-10-01

421

Air Flow Studies for Personnel Explosives Screening Portals.  

National Technical Information Service (NTIS)

An explosives vapor detection method is under development to search personnel for contraband explosives in a portal configuration. In this, the explosives vapor diffusing through an individual's clothing is collected and identified. This process consists ...

R. L. Schellenbaum

1987-01-01

422

Development of a trace explosives detection portal for personnel screening.  

National Technical Information Service (NTIS)

The authors discuss the development, design, and operation of a walk- through trace detection portal designed to screen personnel for explosives. Developed at Sandia National Laboratories (SNL) with primary funding from the Federal Aviation Administration...

J. E. Parmeter K. L. Linker C. L. Rhykerd F. A. Bouchier D. W. Hannum

1998-01-01

423

3. UPPER END, OR SOUTH PORTAL, OF THE WEHRLI TUNNEL ...  

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

3. UPPER END, OR SOUTH PORTAL, OF THE WEHRLI TUNNEL ON THE POWER CANAL Photographer: Walter J. Lubken, April 1, 1905 - Roosevelt Power Canal & Diversion Dam, Parallels Salt River, Roosevelt, Gila County, AZ

424

7. Detail, machinery shed atop east portal of Tunnel 28, ...  

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

7. Detail, machinery shed atop east portal of Tunnel 28, showing shaft and pulley system, 210mm lens with electronic flash fill. - Central Pacific Transcontinental Railroad, Tunnel No. 28, Milepost 134.75, Applegate, Placer County, CA

425

6. Detail, vertical guides adjacent to east portal of Tunnel ...  

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

6. Detail, vertical guides adjacent to east portal of Tunnel 28, view to southwest, 135mm lens with electronic flash fill. - Central Pacific Transcontinental Railroad, Tunnel No. 28, Milepost 134.75, Applegate, Placer County, CA

426

Intestinal permeability in rats with CCl4-induced portal hypertension  

PubMed Central

AIM: To investigate the intestinal barrier changes in rats with CCl4-induced portal hypertension. METHODS: The permeability of intestinal barrier detected by Lanthanum as a tracer was evaluated in rats. Bacterial translocation and plasma endotoxin were also determined. RESULTS: The incidence of bacterial translocation was 85% in rats with CCl4-induced portal hypertension, which was significantly higher than that in control rats (20%, P<0.01). Plasma endotoxin level was significantly higher in experimental group than in control group. Permeability of the epithelial mucosa and pathological alteration were increased in the ileum and the microvilli became shorter and thinner in rats with portal hypertension. CONCLUSION: Bacterial translocation occurs in rats with CCl4-induced portal hypertension and increased permeability between epithelial cells contributes to the translocation.

Yao, Guo-Xiang; Shen, Zhong-Yi; Xue, Xin-Bo; Yang, Zhen

2006-01-01

427

Pregnancies after transjugular intrahepatic portosystemic shunt for noncirrhotic portal hypertension.  

PubMed

With the growing role of transjugular intrahepatic portosystemic shunt (TIPS) in the management of portal hypertension complications, a number of women of childbearing age are now being treated with TIPS. However, if pregnancy is unusual in patients with cirrhosis, it can occur in the case of noncirrhotic portal hypertension. To our knowledge, there are no data on pregnancy safety after TIPS insertion. We report the first case of a patient with noncirrhotic portal hypertension treated by TIPS who had two successful pregnancies. She presented with HIV-associated obliterative portopathy with recurrent variceal bleeding treated by TIPS. Pregnancies occurred later and progressed normally without maternal or fetal morbidity. There was no effect on TIPS patency, but only a moderate increase in the flow velocity in the portal vein, the stent, and the hepatic artery. Thus, TIPS does not seem to impair progression of pregnancy. PMID:24526236

Nicolas, Charlotte; Ferrand, Emma; d'Alteroche, Louis; Ayoub, Jean; Bastides, Frederic; Potin, Jerome; Perarnau, Jean-Marc

2014-04-01

428

Intussusception and Colonic Ischemia in Portal Hypertension: A Case Report  

PubMed Central

Intestinal intussusception is a relatively uncommon occurrence in adults in comparison to pediatric patients. While the management of intussusception in children is frequently decompression of the involved segment, adults often require surgical resection secondary to frequent association with neoplastic lead points. A less common reason for surgical removal of an intussuscepted segment in adults is the development of ischemic colitis. The authors present an unusual case of adult intussusception with associated ischemic colitis in a patient with portal hypertension awaiting liver transplantation. Portal hypertension is associated with the development of a microvascular colopathy. This condition may serve as the lead point for intestinal intussusception. Furthermore, the vascular changes of portal hypertension leave the bowel unable to respond appropriately to the threat of ischemia. The colopathy of portal hypertension may have predisposed our patient to the development of colonic intussusception by submucosal vascular engorgement; it may have also rendered the intussuscepted segment more susceptible to the development of ischemia.

Plackett, Timothy P; Coviello, Lisa C; Belnap, Christina M; Phillips, Kimberley J; Gagliano, Ronald A

2010-01-01

429

163. Twin Tunnels. View of the south portal of the ...  

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

163. Twin Tunnels. View of the south portal of the north tunnel and the ridge through which it passes. Facing north. - Blue Ridge Parkway, Between Shenandoah National Park & Great Smoky Mountains, Asheville, Buncombe County, NC

430

The Integrated Web Portal for Escalation with Overdose Control (EWOC).  

PubMed

In this paper, we present the design and implementation of a novel web portal for the cancer phase I clinical trial design method Escalation with Overdose Control (EWOC). The web portal has two major components: a web-based dose finding calculator; and a standalone and downloadable dose finding software which can be installed on Windows operating systems. The web-based dose finding calculator uses industry standards and is a database-driven and distributed computing platform for designing and conducting dose finding in cancer phase I clinical trials utilizing EWOC methodology. The web portal is developed using open source software: PHP, JQuery, R and OpenBUGS. It supports any standard browsers with internet connection. The web portal can be accessed at: http://biostatistics.csmc.edu. PMID:23847696

Wang, Haibin; Tighiouart, Mourad; Huang, Shao-Chi; Berel, Dror; Cook-Wiens, Galen; Bresee, Catherine; Li, Quanlin; Rogatko, André

2013-01-01

431

View of entry portal into bomb shelter. Wood blocking has ...  

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

View of entry portal into bomb shelter. Wood blocking has been installed to prevent entry, view facing north - U.S. Naval Base, Pearl Harbor, Splinterproof Shelter, Seventh Street between Avenues E & G, Pearl City, Honolulu County, HI

432

View of entry portal into bomb shelter. Wood blocking has ...  

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

View of entry portal into bomb shelter. Wood blocking has been installed to prevent entry, view facing northwest - U.S. Naval Base, Pearl Harbor, Splinterproof Shelter, Seventh Street between Avenues E & G, Pearl City, Honolulu County, HI

433

1. EAST PORTAL. NOTE STEEL GRID DECKING THAT REPLACED ORIGINAL ...  

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

1. EAST PORTAL. NOTE STEEL GRID DECKING THAT REPLACED ORIGINAL TIMBER DECKING. - Peevy Road Bridge, Peevy Road spanning Perkiomen Creek in Upper Hanover Township, East Greenville, Montgomery County, PA

434

The Integrated Web Portal for Escalation with Overdose Control (EWOC)  

PubMed Central

In this paper, we present the design and implementation of a novel web portal for the cancer phase I clinical trial design method Escalation with Overdose Control (EWOC). The web portal has two major components: a web-based dose finding calculator; and a standalone and downloadable dose finding software which can be installed on Windows operating systems. The web-based dose finding calculator uses industry standards and is a database-driven and distributed computing platform for designing and conducting dose finding in cancer phase I clinical trials utilizing EWOC methodology. The web portal is developed using open source software: PHP, JQuery, R and OpenBUGS. It supports any standard browsers with internet connection. The web portal can be accessed at: http://biostatistics.csmc.edu.

Wang, Haibin; Tighiouart, Mourad; Huang, Shao-Chi; Berel, Dror; Cook-Wiens, Galen; Bresee, Catherine; Li, Quanlin; Rogatko, Andre

2013-01-01

435

15. SOUTH WEB AND WEST PORTAL OF MIDDLE THROUGH TRUSS. ...  

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

15. SOUTH WEB AND WEST PORTAL OF MIDDLE THROUGH TRUSS. VIEW TO NORTHEAST. - Abraham Lincoln Memorial Bridge, Spanning Missouri River on Highway 30 between Nebraska & Iowa, Blair, Washington County, NE

436

7. NORTH WEB AND WEST PORTAL. VIEW TO SOUTHEAST FROM ...  

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

7. NORTH WEB AND WEST PORTAL. VIEW TO SOUTHEAST FROM BLAIR RAILROAD BRIDGE. - Abraham Lincoln Memorial Bridge, Spanning Missouri River on Highway 30 between Nebraska & Iowa, Blair, Washington County, NE

437

3. DETAIL OF TRUSS PANELS AND INCLINED PORTAL MEMBER AT ...  

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

3. DETAIL OF TRUSS PANELS AND INCLINED PORTAL MEMBER AT THE SOUTHEAST ENTRANCE TO THE BRIDGE, LOOKING WEST. - Chicago, Madison & Northern Railroad, Sanitary & Ship Canal Bridge, Spanning Sanitary & Ship Canal, east of Kedzie Avenue, Chicago, Cook County, IL

438

2. PORTAL VIEW OF BRIDGE FROM NORTH SIDE OF SANITARY ...  

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

2. PORTAL VIEW OF BRIDGE FROM NORTH SIDE OF SANITARY AND SHIP CANAL, LOOKING SOUTHEAST. - Chicago, Madison & Northern Railroad, Sanitary & Ship Canal Bridge, Spanning Sanitary & Ship Canal, east of Kedzie Avenue, Chicago, Cook County, IL

439

Scope on Safety: NSTA's portal into the safety zone  

NSDL National Science Digital Library

NSTA's Science Safety Advisory Board recently launched the Safety in the Science Classroom portal, which contains safety resources for teachers, supervisors, and administrators. This month's column provides a partial listing of the resources middle schoo

Roy, Ken

2010-07-01

440

2. View of west tunnel portal and stream on Laurel ...  

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

2. View of west tunnel portal and stream on Laurel Creek Road looking ENE. - Great Smoky Mountains National Park Roads & Bridges, Cades Cove Road & Laurel Creek Road, From Townsend Wye to Cades Cove, Gatlinburg, Sevier County, TN

441

General view of north portals showing three abandoned roadbeds. View ...  

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

General view of north portals showing three abandoned roadbeds. View south - New York, New Haven & Hartford Railroad, Fort Point Channel Rolling Lift Bridge, Spanning Fort Point Channel, Boston, Suffolk County, MA

442

17. DETAIL OF SOUTH PORTAL, SHOWING "TREE OF LIFE" RAILING ...  

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

17. DETAIL OF SOUTH PORTAL, SHOWING "TREE OF LIFE" RAILING DETAIL AS WELL AS BUILDER'S PLATE. - Falls Bridge, Spanning Schuylkill River, connecting East & West River Drives, Philadelphia, Philadelphia County, PA

443

12. PORTAL VIEW OF THE LENGTH OF THE BRIDGE Photocopy ...  

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

12. PORTAL VIEW OF THE LENGTH OF THE BRIDGE Photocopy of historic photograph (photographer unknown, September 1896) - Falls Bridge, Spanning Schuylkill River, connecting East & West River Drives, Philadelphia, Philadelphia County, PA

444

36. EAST (CANADIAN) PORTAL OF MAIN SECTION OF BRIDGE, SHOWING ...  

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

36. EAST (CANADIAN) PORTAL OF MAIN SECTION OF BRIDGE, SHOWING PANEL OVER PIER C IN CENTER. VIEW TO WEST. - Blue Water Bridge, Spanning St. Clair River at I-69, I-94, & Canadian Route 402, Port Huron, St. Clair County, MI

445

Design of Grid Portal System Based on RIA  

NASA Astrophysics Data System (ADS)

Grid portal is an important branch of grid research. In order to solve the weak expressive force, the poor interaction, the low operating efficiency and other insufficiencies of the first and second generation of grid portal system, RIA technology was introduced to it. A new portal architecture was designed based on RIA and Web service. The concrete realizing scheme of portal system was presented by using Adobe Flex/Flash technology, which formed a new design pattern. In system architecture, the design pattern has B/S and C/S superiorities, balances server and its client side, optimizes the system performance, realizes platform irrelevance. In system function, the design pattern realizes grid service call, provides client interface with rich user experience, integrates local resources by using FABridge, LCDS, Flash player and some other components.

Cao, Caifeng; Luo, Jianguo; Qiu, Zhixin

446

7. EAST PORTAL OF CONCRETE LINED CULVERT LOCATED 30 YARDS ...  

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

7. EAST PORTAL OF CONCRETE LINED CULVERT LOCATED 30 YARDS WEST OF HAPPY ISLES BRIDGE. NOTE ROCK & CONCRETE FLOOR. - Happy Isles Bridge, Spanning Merced River on Service road, Yosemite Village, Mariposa County, CA

447

163. VIEW OF TWO JOHNS MINE PORTAL FROM EAST. NOTE ...  

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

163. VIEW OF TWO JOHNS MINE PORTAL FROM EAST. NOTE WATER LINE ON BRIDGE; DEWATERING MINE SUPPLIED A PORTION OF THE MILL'S WATER SUPPLY. - Bald Mountain Gold Mill, Nevada Gulch at head of False Bottom Creek, Lead, Lawrence County, SD

448

Portal Chronic Inflammation in Nonalcoholic Fatty Liver Disease  

PubMed Central

Untreated adult nonalcoholic fatty liver disease (NAFLD) is characterized by absent or mild portal chronic inflammation (CI); in the portal-based pediatric pattern of NAFLD, portal CI may be a predominant component. This study was undertaken to correlate clinical features with portal CI in the subjects enrolled in the NASH CRN. Methods Histology from central grading and clinical parameters temporally related to the biopsy were evaluated from 728 adults and 205 children. Results Sixty percent of adult biopsies had mild, 23% had more than mild, and 16% had no portal CI. In children, 76% had mild, 14% were more than mild, and 10% had no portal CI. In neither group were autoantibodies, elevated ALT, or generic use of “any” medications associated with the presence or degree of portal CI. Clinical features associated with “more than mild” in adults were older age (51 y v 44 y) (p<0.0001), female gender (p=0.001), higher BMI (p<0.0001), elevated insulin levels (median 20 v 14uU/ml) (p=0.001), higher HOMA-IR (median 5 v 3) (p<0.0001), and medications used for NAFLD (p=0.0004), diabetes (p<0.0001), and hypertension (p<0.0001). The same comparisons for “more than mild” v “none” in the pediatric biopsies showed only an association with younger age (12 y v 14 y) (p=0.01), but there was a trend favoring boys. There was no association with BMI, insulin or HOMA-IR. In both groups, lobular and portal inflammation scores had no association, but there was an association with a definite steatohepatitis diagnosis (p<0.0001 for both). Features in the adult biopsies associated with “more than mild” were steatosis amount (p=0.01and location (p<0.0001), presence of ballooning (p<0.0001), and advanced fibrosis (p<0.0001). In the pediatric biopsies, “more than mild” compared with “none” was associated with steatosis location (p=0.0008), and fibrosis score (p<0.0001), specifically, the pediatric (zone 1 accentuation) pattern (p<0.001) and portal/periportal fibrosis (or more advanced fibrosis) (p<0.01). Conclusions Increased portal CI is associated with many clinical and pathologic features of progressive NAFLD in both adults and children, but not with ALT, autoantibodies, or lobular inflammation. The presence of more than mild portal CI in liver biopsies of untreated NAFLD may be considered a marker of clinically and histologically advanced disease.

Brunt, Elizabeth M.; Kleiner, David E.; Wilson, Laura A.; Unalp, Aynur; Behling, Cynthia E.; Lavine, Joel E.; Neuschwander-Tetri, Brent A.

2009-01-01

449

Current Status of the Japanese Virtual Observatory Portal  

NASA Astrophysics Data System (ADS)

The Japanese Virtual Observatory (JVO) portal is a web portal for accessing astronomical data and analysis system through the Internet. In the years of 2009 and 2010, we have developed two new access interfaces: JVOSky and command-line access interfaces. To enable users to perform all sky searches based on SED properties of celestial objects, we experimentally used the Hadoop for performing cross-match of one billion photometric records in the JVO Digital Universe.

Shirasaki, Y.; Komiya, Y.; Ohishi, M.; Mizumoto, Y.; Ishihara, Y.; Yanaka, H.; Tsutsumi, J.; Hiyama, T.; Nakamoto, H.; Sakamoto, M.

2011-07-01

450

Portal hypertension in a patient with chronic myeloid leukaemia.  

PubMed Central

A patient with chronic myeloid leukaemia treated with busulphan for 4-5 years, developed signs of busulphan toxicity and portal hypertension with ascites, oesophageal varices and jaundice. At post-mortem there was minimal leukaemic infiltration but there were alterations in the liver architecture sufficient to explain the portal hypertension. The pathogenesis of the liver changes and their possible relationship to splenomegaly and busulphan toxicity are considered. Images Fig. 1 Fig. 2

Foadi, M. D.; Shaw, S.; Paradinas, F. J.

1977-01-01

451

Causes and Management of Portal Hypertension in the Pediatric Population  

Microsoft Academic Search

The survival of children with portal hypertension has improved over the past decade owing to significant improvements in both\\u000a medical and surgical therapy. These improvements have included progress in the pharmacologic control of acute portal hypertensive\\u000a hemorrhage and improved efficacy and safety of endoscopic methods to treat acute esophageal variceal hemorrhage. However,\\u000a despite these changes, there remains a significant role

Frederick C. Ryckman; Maria H. Alonso; Greg Tiao

452

Portal vein thrombosis and liver abscess due to Lactococcus lactis.  

PubMed

A 26-year-old man was admitted with fever and abdominal pain. Abdominal ultrasonography and Doppler ultrasound eventually revealed portal vein thrombosis and a pyogenic liver abscess (17x11x11 cm). Lactococcus lactis was isolated from a culture of the abscess material. This organism is not a common pathogen in humans. This is the first published description of portal vein thrombosis and pyogenic liver abscess due to L. lactis. PMID:16830302

Güz, Galip; Ye?in, Zeynep Arzu; Do?an, Ibrahim; Hizel, Kenan; Bali, Musa; Sindel, Sükrü

2006-06-01

453

13. Detail, portal connection point of 1898 swing span, Bridge ...  

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

13. Detail, portal connection point of 1898 swing span, Bridge Number 210.52, view to northeast, 210mm lens. Visible are the latticed portal strut at right, inclined end post, vertical hanger, top chord at left, paired diagonal eyebars, and one end of a top lateral. - Southern Pacific Railroad Shasta Route, Bridge No. 210.52, Milepost 210.52, Tehama, Tehama County, CA

454

Potential for portal detection of human chemical and biological contamination  

Microsoft Academic Search

The walk-through metal-detection portal is a paradigm of non-intrusive passenger screening in aviation security. Modern explosive detection portals based on this paradigm will soon appear in airports. This paper suggests that the airborne trace detection technology developed for that purpose can also be adapted to human chemical and biological contamination. The waste heat of the human body produces a rising

Gary S. Settles; William J. McGann

2001-01-01

455

ELT Science Case Evaluation Using An HPC Portal  

NASA Astrophysics Data System (ADS)

A simulation package has been developed for testing science cases for the European Extremely Large Telescope. The application is capable of running in a grid environment using a simple plugin adaptation. Further, a user-friendly web based portal has been developed, allowing facilitated access to grid resources. The application gets access to portal controlled services, such as starting and monitoring the execution, as well as enabling user control and retrieval of the results.

Linde, P.; Lindemann, J.

2008-08-01

456

Endovascular Treatment of a Portal Vein Tear During TIPSS  

SciTech Connect

During a transjugular portosystemic stent-shunt (TIPSS) procedure a portal vein laceration occurred with subsequent intraperitoneal hemorrhage. A PTFE-covered nitinol stent was successfully placed eliminating the leak and creating a functioning portosystemic shunt. This case demonstrates both the importance of portal vein puncture more than 1 cm from the bifurcation and the necessity of maintaining a stock of available stent-grafts.

Owen, Richard J.T.; Rose, John D.G. [Department of Clinical Radiology, Freeman Hospital, Newcastle upon Tyne, NE7 7DN (United Kingdom)

2000-03-15

457

Portal Venous System and Its Tributaries: A Radial Endosonographic Assessment  

PubMed Central

The use of Color Doppler in endosonography has enabled detailed real-time assessment of the abdominal vasculature. Standard stations are used during the routine evaluation on endosonography. However, the imaging techniques do not describe the vascular imaging of the portal venous system and its tributaries, in detail. This article demonstrates the normal findings on the portal venous system and its tributaries using radial endosonography.

Sharma, Malay; Babu, C. S. Ramesh; Garg, Shubham; Rai, Praveer

2012-01-01

458

Capacitance of the rabbit portal vein and inferior vena cava.  

PubMed Central

1. We used vessel strips and whole vessels in vitro to determine the length-tension and pressure-volume relationships of two veins with similar diameter and wall thickness, the portal vein and inferior vena cava of rabbits. 2. Length-tension studies indicate that longitudinal and circular strips of the portal vein have significantly smaller elastic moduli than similar strips of the inferior vena cava (P less than 0.05). 3. Pressure-volume relationships of intact vessels indicate that pressures greater than 5 mmHg do not produce significant increases in volume of the inferior vena cava, whereas volume of the portal vein increases significantly over a range of pressures from 2 to 15 mmHg. 4. Activation of smooth muscle with noradrenaline reduces the volume of the vena cava at distending pressures less than or equal to 5 mmHg. In contrast, noradrenaline reduces the volume of the portal vein at pressures up to 10 mmHg. During inactivation in calcium-free solution and activation with noradrenaline, the portal vein is more compliant than the inferior vena cava (P less than 0.05). 5. Morphometric studies demonstrate more collagen in the inferior vena cava than in the portal vein. Differences in capacitance of the vessels may be related, in part, to greater collagen content in the inferior vena cava.

Brown, B P; Heistad, D D

1986-01-01

459

Endovascular treatment of an unusual primary arterioportal fistula complicated by cavernous transformation of the portal vein caused by portal thrombosis.  

PubMed

We describe an elderly woman who presented with an unusual primary arterioportal fistula and cavernous transformation of the portal vein caused by portal thrombosis, which were subsequently managed with endovascular coil embolization and transjugular intrahepatic portosystemic shunt using 2 stents after balloon remodeling. This case shows a rarely seen condition in the elderly and a novel management strategy that should be considered in the management of this complex disease. PMID:24368181

Zhang, Wen-guang; Li, Zhen; Ding, Peng-xu; Ren, Jian-zhuang; Ma, Ji; Zhou, Peng-li; Wang, Zhong-gao; Han, Xin-wei

2014-02-01

460

Pancreatic stent migration into the portal vein causing portal vein thrombosis: a rare complication of a prophylactic pancreatic stent.  

PubMed

This report describes the first case of a novel complication of prophylactic pancreatic stents used to reduce the risk of post-endoscopic retrograde cholangiopancreatography pancreatitis, whereby the stent migrated into the portal vein resulting in portal vein thrombosis. We review the literature and discuss the potential mechanisms that caused this complication. The approach and prompt treatment that resulted in a favorable clinical outcome are described. PMID:23127537

Leung, Wesley D; Parashette, Kalyan Ray; Molleston, Jean P; Sherman, Stuart

2012-01-01

461

Obliteration of portal systemic shunts as therapy for hepatic encephalopathy in patients with non-cirrhotic portal hypertension  

Microsoft Academic Search

Summary  The effects of obliteration of portal systemic shunts (PSS) in 5 patients with non-cirrhotic hepatic encephalopathy is reported.\\u000a All patients had a history of disturbance of consciousness for several years, and examinations revealed large PSS, most of\\u000a which connecting the left gastric vein to the left renal vein. After the obliteration of PSS, portal vein pressure elevated,\\u000a the shunt ratio

Toshio Ito; Nobumasa Ikeda; Akiharu Watanabe; Kunihiko Sue; Takeshi Kakio; Hisashi Mimura; Takao Tsuji

1992-01-01

462

NASA GES DISC Hurricane Web Portal  

NASA Astrophysics Data System (ADS)

This presentation will describe recent activities at the NASA Goddard Earth Sciences (GES) Data and Information Services Center (DISC) to support hurricane monitoring, research and outreach activities. A newly developed web portal (URL: http://disc.sci.gsfc.nasa.gov/hurricane/) is designed for viewing and studying hurricanes by utilizing various measurements by NASA remote-sensing instruments. The portal consists of five main components: - Current conditions (in pre-selected regions and updated daily): the latest maps, animation and profiles from NASA satellites. At present, images or plots created using data from TRMM, AIRS, MODIS, MLS and CloudSat are available. Later, data from OMI and other instruments will be added. A new feature will be added to allow users to easily download/subset data associated with these images. - Past hurricane archive: maps, animation and profiles of past hurricanes were created using data from TRMM, AIRS, MODIS, MLS and CloudSat, allowing users to explore past hurricanes and download/subset data if necessary. - Science focus: examples/stories describing data usage in hurricane monitoring and research - Tools: descriptions and links of a number of in-house developed tools for hurricane exploration and event-based data ordering. For example, the GES-DISC Interactive Online Visualization ANd aNalysis Infrastructure (Giovanni, URL: http://giovanni.gsfc.nasa.gov), a series of online visualization and analysis systems, allows users to access data ranging from near-real-time to historical archives and generate customized analysis maps, plots and data on the fly over the Internet. A hurricane instance of Giovanni is under development. Mirador (URL: http://g0dup05u.ecs.nasa.gov/OPS/mirador/) is another in-house developed tool that offers a simplified interface for searching, browsing, and ordering Earth science data at NASA GES DICS. Users can do event based (e.g., entering a hurricane name) search and order data. - Hurricane viewer: provides users with a view of the hurricane track that overlays TRMM 3- hourly precipitation data. The interface provides users with the storm track, wind speeds, pressure, intensity and view of the data of the lifespan of the storm in an animated series. The Hurricane Viewer will be enhanced to allow users to select from multiple data parameters to view in the background of the track. Details and examples will be presented.

Liu, Z.; Leptoukh, G.; Ostrenga, D.; Rui, H.; Hulka, J.; Carlaw, L.

2006-12-01

463

Central nervous system alterations in liver cirrhosis: the role of portal-systemic shunt and portal hypoperfusion.  

PubMed

The role of portal-systemic shunting and portal liver hypoperfusion in the pathophysiology of central nervous system dysfunction (CNSD) of cirrhosis is not yet well defined. It is well known that one of the most important collateral vessels (CVs) is a patent paraumbilical vein (PUV), but there is controversy regarding its clinical significance. We have evaluated the relationships between neuropsychological and EEG alterations, ammonia plasma level (NH4), hepatic function, and portal hemodynamics (Doppler Ultrasound) in 95 cirrhotic patients. Patency, diameter, or flow of PUV or the presence of other CVs were not related to an increased prevalence of neuropsychological or EEG abnormalities. Patients with effective portal flow (EPF = portal flow - PUV flow) lower than 692 mL/min (median) had a significantly higher risk of failing the neuropsychological test, or of having an altered EEG. Low EPF and prothrombin time (<50%), and high NH4 (51 micromol/L) were independent predictors of an abnormal EEG. Considering both low EPF and the numerosity of CVs, only low EPF was found to explain EEG alterations. In conclusion, portal liver hypoperfusion and decreased liver function were associated with an increased risk of CNSD in cirrhotic patients, whereas PUV patency per se was not. PMID:12603082

Del Piccolo, Franco; Sacerdoti, David; Amodio, Piero; Bombonato, Giancarlo; Bolognesi, Massimo; Mapelli, Daniela; Gatta, Angelo

2003-03-01

464

VisPortal: Deploying grid-enabled visualization tools through a web-portal interface  

SciTech Connect

The LBNL/NERSC Visportal effort explores ways to deliver advanced Remote/Distributed Visualization (RDV) capabilities through a Grid-enabled web-portal interface. The effort focuses on latency tolerant distributed visualization algorithms, GUI designs that are more appropriate for the capabilities of web interfaces, and refactoring parallel-distributed applications to work in a N-tiered component deployment strategy. Most importantly, our aim is to leverage commercially-supported technology as much as possible in order to create a deployable, supportable, and hence viable platform for delivering grid-based visualization services to collaboratory users.

Bethel, Wes; Siegerist, Cristina; Shalf, John; Shetty, Praveenkumar; Jankun-Kelly, T.J.; Kreylos, Oliver; Ma, Kwan-Liu

2003-06-09

465

Website Babies Portal: development and evaluation of the contents regarding orofacial functions  

PubMed Central

Education mediated by technology facilitates the access to information and can reach more people, including a broader range of socio-economic groups and ages, and at a low-cost. The website "Babies Portal - Speech-Language Pathology/Audiology and Dentistry" (http://portaldosbebes.fob.usp.br) was developed to provide parents with information on communication procedure disorders and oral health, enabling them to prevent and identify any changes in development early while looking for the best treatment. Objective: The objective is to describe the development and evaluation of the content pertaining to the oral functions featured in the "Babies Portal". Methods: The first stage consisted of a literature review, development/selection of illustrations and an evaluation of the possible external links that could be available. In the second stage, 10 speech-language and hearing pathologists (group A) and five parents of babies (group B) evaluated the website via an online form, which included ethical and personal information and questions about the quality, technical information and comparative prior knowledge acquired after the access. In the first stage, there was the construction of five sections ("The Oral Functions", "Breastfeeding", "Food", "Pacifier, baby bottle and finger sucking" and "Breath") based on scientific studies, presenting objective information, content links prepared by the Ministry of Health and a Dentistry section in the "Babies Portal" website. Videos, static and dynamic images were also distributed throughout the sections. Results: Regarding the second stage, 90% of all speech-language and hearing pathologists judged a good/excellent quality for all sections and classified the technical quality as very good. By their turn, 88% of the parents (group B) reported that the website helped or helped very much in understanding the contents, and 80% rated the quality as good or excellent. Conclusions: Five sections concerning the oral functions were structured, and the results collected from groups A and B suggest that the content provided is adequate and reliable.

CORREA, Camila de Castro; PAULETO, Adriana Regina Colombo; FERRARI, Deborah Viviane; BERRETIN-FELIX, Giedre

2013-01-01

466

The Rat Genome Database Pathway Portal  

PubMed Central

The set of interacting molecules collectively referred to as a pathway or network represents a fundamental structural unit, the building block of the larger, highly integrated networks of biological systems. The scientific community's interest in understanding the fine details of how pathways work, communicate with each other and synergize, and how alterations in one or several pathways may converge into a disease phenotype, places heightened demands on pathway data and information providers. To meet such demands, the Rat Genome Database [(RGD) http://rgd.mcw.edu] has adopted a multitiered approach to pathway data acquisition and presentation. Resources and tools are continuously added or expanded to offer more comprehensive pathway data sets as well as enhanced pathway data manipulation, exploration and visualization capabilities. At RGD, users can easily identify genes in pathways, see how pathways relate to each other and visualize pathways in a dynamic and integrated manner. They can access these and other components from several entry points and effortlessly navigate between them and they can download the data of interest. The Pathway Portal resources at RGD are presented, and future directions are discussed. Database URL: http://rgd.mcw.edu

Petri, Victoria; Shimoyama, Mary; Hayman, G. Thomas; Smith, Jennifer R.; Tutaj, Marek; de Pons, Jeff; Dwinell, Melinda R.; Munzenmaier, Diane H.; Twigger, Simon N.; Jacob, Howard J.

2011-01-01

467

ProPortal: A Database for Prochlorococcus  

DOE Data Explorer

Prochlorococcus is a marine cyanobacterium that numerically dominates the mid-latitude oceans, and is the smallest known oxygenic phototroph. All isolates described thus far can be assigned to either a tightly clustered high-light (HL) adapted clade, or a more divergent low-light (LL) adapted group. They are closely related to, but distinct from, marine Synechococcus. The genomes of 12 strains have been sequenced and they range in size from 1.6 to 2.6 Mbp. They represent diverse lineages, spanning the rRNA diversity (97 to 99.93% similarity) of cultured representatives of this group. Our analyses of these genomes inform our understanding of how adaptation occurs in the oceans along gradients of light, nutrients, and other environmental factors, providing essential context for interpreting rapidly expanding metagenomic datasets. [Copied from http://proportal.mit.edu/project/prochlorococcus/] ProPortal allows users to browse and search genome date for not only Prochlorococcus, but Cyanophage and Synechococcus. Microarray data, environmental cell concentration data, and metagenome information are also available.

Huang, Katherine [Chisholm lab, MIT

468

Portal Vein Embolization for Hepatocellular Carcinoma  

PubMed Central

Portal vein embolization (PVE) improves the safety of major hepatectomy through hypertrophy of the future liver remnant (FLR), atrophy of the liver volume to be resected, and improvement in patient selection. Because most patients with hepatocellular carcinoma (HCC) have liver parenchymal injury due to underlying viral hepatitis or alcoholic liver fibrosis/cirrhosis, indication of PVE is relatively complex and sequential procedures, including transarterial chemoembolization, are required to maximize the effect of PVE as well as to minimize tumor progression due to increased arterial flow after PVE. PVE is currently indicated for patients with relatively well-preserved hepatic function [Child–Pugh A and indocyanine green tolerance test (ICG-R15) <20%) to achieve minimal FLR volume for safe major hepatectomy. FLR volume >40% is the minimal requirement for patients with chronic hepatitis or cirrhosis, and further strict criteria (FLR volume >50%) have been recommended for patients with marginal liver functional reserve (IC