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1

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, ...

2

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.

3

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

NSF Publications Database

National Science Foundation Senior Executive Service Vacancy ANNOUNCEMENT NUMBER: S20060003-LTD OPEN: 10/12/2005 CLOSE: 11/28/2005 POSITION VACANT: Director, Division of Graduate Education (DGE), Directorate for Education and Human Resources LOCATION: Arlington, Virginia SALARY RANGE: The Federal pay range for Senior Executive Service positions is $107,550 to $149,200 per annum AREA OF CONSIDERATION: All Qualified Applicants Announcement is for a one-to-three year limited term appointment. ...

4

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

NSF Publications Database

National Science Foundation Senior Executive Service Vacancy ANNOUNCEMENT NUMBER: S20060003-C OPEN: 10/12/2005 CLOSE: 11/28/2005 POSITION VACANT: Director, Division of Graduate Education (DGE), Directorate for Education and Human Resources LOCATION: Arlington, Virginia SALARY RANGE: The Federal pay range for Senior Executive Service positions is $107,550 to $149,200 per annum AREA OF CONSIDERATION: All Qualified Applicants. Additional information on the NSF mission, structure, programs and ...

5

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. PMID:24448035

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

2014-01-01

6

Learning Portals for Education and Beyond.  

ERIC Educational Resources Information Center

Discussion of online learning and institutional training focuses on professional development that is offered by three types of providers: degree-granting institutions; online education entrepreneurs; and public/nonprofit organizations. Presents advice on key issues to consider when choosing a provider and discusses effective time management. (LRW)

Sistek-Chandler, Cynthia

2001-01-01

7

The New Physics and Astronomy Education Portal of the Smithsonian\\/NASA Astrophysics Data System  

Microsoft Academic Search

The ADS announces the beta release of a new portal into the technical literature for physics and astronomy education. This project is being done in collaboration with ComPADRE. Currently the collection contains about 30,000 articles covering the Science Education literature; key journals in the collection include Research in Science Education, Physical Review Special Topics Physics Education Research, The Physics Teacher,

M. J. Kurtz; G. Eichhorn; A. Accomazzi; C. Grant; E. Henneken; D. Thompson; E. Bohlen; S. S. Murray

2006-01-01

8

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

NSF Publications Database

... NO: E20050112 OPEN: 07/28/05 CLOSE: 08/18//05 THIS POSITION WILL BE FILLED ON A ONE OR TWO YEAR ... Assistant Program Director), AD-1701-2. LOCATION: Directorate for Education and Human Resources ...

9

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.

10

Challenges to EHR Implementation in Electronic- Versus Paper-based Office Practices  

PubMed Central

Summary Background Challenges in implementing electronic health records (EHRs) have received some attention, but less is known about the process of transitioning from legacy EHRs to newer systems. Objective To determine how ambulatory leaders differentiate implementation approaches between practices that are currently paper-based and those with a legacy EHR system (EHR-based). Design Qualitative study. Participants Eleven practice managers and 12 medical directors all part of an academic ambulatory care network of a large teaching hospital in New York City in January to May of 2006. Approach Qualitative approach comparing and contrasting perceived benefits and challenges in implementing an ambulatory EHR between practice leaders from paper- and EHR-based practices. Content analysis was performed using grounded theory and ATLAS.ti 5.0. Results We found that paper-based leaders prioritized the following: sufficient workstations and printers, a physician information technology (IT) champion at the practice, workflow education to ensure a successful transition to a paperless medical practice, and a high existing comfort level of practitioners and support staff with IT. In contrast, EHR-based leaders prioritized: improved technical training and ongoing technical support, sufficient protection of patient privacy, and open recognition of physician resistance, especially for those who were loyal to a legacy EHR. Unlike paper-based practices, EHR-based leadership believed that comfort level with IT and adjustments to workflow changes would not be difficult challenges to overcome. Conclusions Leadership at paper- and EHR-based practices in 1 academic network has different priorities for implementing a new EHR. Ambulatory practices upgrading their legacy EHR have unique challenges. PMID:18369679

Yoon-Flannery, Kahyun; Kuperman, Gilad J.; Langsam, Daniel J.; Hyman, Daniel; Kaushal, Rainu

2008-01-01

11

Learning from Public Television and the Web: Positioning Continuing Education as a Knowledge Portal.  

ERIC Educational Resources Information Center

Digital convergence--the merging of television and computing--challenges localized monopolies of public television and continuing education. Continuing educators can reposition themselves in the electronic marketplace by serving as an educational portal, bringing their strengths of "brand recognition," local customer base, and access to…

Vedro, Steven R.

1999-01-01

12

Quality evaluation of portal sites in health system, as a tool for education and learning  

PubMed Central

Background: The main objective of creating a portal is to make information service available for users who need them for performance of duties and responsibilities regardless of the sources. This article is attempted to consider the parameters that can evaluate these sites since these criteria can be effective in designing and implementing such portals. On the other hand, portal sites in health systems of every country make it possible for leaders, policy makers, and directors to system education as a tool for new learning technologies. One of the main decisions each manager has to make is precise selection of appropriate portal sites. Materials and Methods: This is a descriptive and qualitative study. The research sample was 53 computer professional working in the area of computer programming and design. In the first part of the study a questionnaire was send to the participants and in the second part of the study based on their response to the questionnaire the participant was interviewed and the main themes of the studies were formulated. The validity and the reliability of the questionnaire were confirmed. Results: The study results were summarized in 10 themes and 50 sub-categories. The main themes included were portal requirements, security, management, and efficiency, user friendliness, built-in applications, portal flexibility, interoperability, and support systems. Conclusion: Portal sites in any education systems make it possible for health system leaders and policy makers to manage their organization information system efficiently and effectively. One of the major decisions each manager has to make is precise selection of an appropriate portal sites design and development. The themes and sub-categories of this study could help health system managers and policy makers and information technology professionals to make appropriate decisions regarding portal design and development. PMID:24520554

Hejazi, Sayed Mehdi; Sarmadi, Sima

2013-01-01

13

Getting an Edge in Online Education: Developing an Online Learning Web Portal  

Microsoft Academic Search

To effectively compete in the market of online education, institutions need to get potential students' attention and interest in their high quality online programs. This goal can be reached by developing an online Web portal presenting the institution's online learning environment and the specific class, certificate, or degree program offerings in a way that answers self-directed students' questions. For online

Beate P. Winterstein

14

Secondary Use of the EHR via Pseudonymisation  

E-print Network

Poliklinik für Innere Medizin I Klinikum der Universität D-93042 Regensburg, Germany Abstract. The Electronic Health Record (EHR) has many secondary uses, such as health economy and health care research, or disease, but useful in other contexts as well. Introduction The Electronic Health Record (EHR) is primarily used

Pommerening, Klaus - Institute of Medical Biostatistics, Epidemiology, and Informatics & Fachbereich 08

15

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

16

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

Code of Federal Regulations, 2013 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...

2013-10-01

17

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

18

StarBRITE: the Vanderbilt University Biomedical Research Integration, Translation and Education portal.  

PubMed

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. PMID:21310264

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

2011-08-01

19

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. PMID:21310264

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

20

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

21

Pedagogy in Action: the SERC portal for Educators  

NSDL National Science Digital Library

The Science Education Resource Center (SERC) at Carleton College is a source of excellent classroom resources, including lesson plans on science, technology, engineering, mathematics, and more. This module takes a look at the undergraduate research experience. Instructors looking to more deeply engage their undergrads are using collaborative research projects to advance student knowledge and allow students hands-on, experiential learning. This page provides information about this teaching method, several examples of classroom projects and a bibliography of references and resources on undergraduate research.

2013-07-31

22

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

23

Do EHR investments lead to lower staffing levels?  

PubMed

A study used FTE employees per adjusted occupied bed (FTE/AOB) as a measure to ascertain the effect of EHR investments on labor productivity. The study focused on three primary questions: Do FTE/AOB decline as the number of EHR applications used in a hospital increases? Is impact on FTE/AOB greater with some EHR applications than with others? Do FTE/AOB decline overtime, as the hospital continues to use the EHR application? PMID:22372293

Helton, Jeff; Langabeer, Jim; DelliFraine, Jami; Hsu, Chiehwen

2012-02-01

24

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

ERIC Educational Resources Information Center

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…

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

2007-01-01

25

Portals in Higher and Further Education. EDNER (Formative Evaluation of the Distributed National Electronic Resource) Project. Issues Paper.  

ERIC Educational Resources Information Center

This issues paper, fifth in a series of eight, is intended to distill formative evaluation questions on topics that are central to the development of the higher and further education information environment in the United Kingdom. The term "portal" is so widely used by so many people with so many different perspectives that definition is difficult.…

Manchester Metropolitan Univ. (England).

26

Physics Portal  

NSDL National Science Digital Library

As part of the Journal Nature's Web site, the Physics Portal, is an online resource providing physicists easy access to timely, relevant research. After the free registration users can view current and past articles, arranged by subject including everything from astro to quantum physics. The site also contains news articles, meeting and job information, a links page, and more, making it a must-stop for any researcher or educator in the field.

2002-01-01

27

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

28

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. PMID:21875866

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

2011-01-01

29

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

30

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. PMID:17548872

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

2007-01-01

31

NASA Technology Portal  

NSDL National Science Digital Library

This is the newly redesigned Technology Portal Web site from NASA, which serves as a hub for virtually all technology related developments in which NASA is involved. The portal is continually updated with news and event information, and a Streaming Media Center plays both live and archived video from NASA TV. Visitors can browse technology features for commercial and educational applications. A Just for Kids section has many resources for children, such as multimedia activities and basic space concepts.

2007-12-12

32

Portal biliopathy  

Microsoft Academic Search

Herein we describe a case of obstructive jaundice and cholangitis originating from choledochal lithiasis secondary to a stricture of the common bile duct in a patient with cavernous transformation of the portal vein. In fact, portal cavernous transformation gives rise to many dilated pericholedochal and periportal collaterals that bypass the portal vein obstruction. Extrinsic compression of the common duct by

P. Perego; G. Cozzi; A. Bertolini

33

Portal Technology  

E-print Network

is primarily static A portal changes the website from an institution-centric to user-centric focus Homepage vs. portal Does a portal replace a homepage? No External users still need your home page Will still need the info on your home page You’ll need your... normally build web pages AND people who know how to manage the specialized data needed for personalization. People who normally build WebPages will need to deal with much more dynamic, customized and personalized data Designing Portals What are portal...

Warner, Beth Forrest

2002-03-27

34

Need versus cost: understanding EHR data migration options.  

PubMed

Over 50% of physician offices and group practices are replacing their electronic health record (EHR) systems. Dissatisfaction with first-generation systems, physician practice mergers, and hospital acquisitions are all driving the move from legacy EHRs to newer, more sophisticated software. With this painful decision comes the same challenge experienced with a medical practice's original EHR implementation--getting data into the new system. However, now practices have decades of data, terabytes of information, and multiple vendors to manage. Time and cost requirements to migrate data from one EHR to another must be weighed against the benefits of physician productivity and continuing patient care. Core areas for practices to consider include staff stress, financial risk, and physician productivity. This article helps practice directors navigate new data-migration decisions when replacing their EHR system. Key considerations and "must-haves" for effective data migration decisions are included. Conversion, vendor neutral archive, and document imaging options are reviewed along with practical best practices for identifying which data should be included in the go-forward EHR. PMID:24765738

West, Sean

2013-01-01

35

App Store for EHRs and Patients Both.  

PubMed

The Substitutable Medical Applications, Reusable Technologies (SMART) Platforms project ( www.smartplatforms.org ) seeks to develop an iPhone-like health information technology platform with substitutable apps constructed around core services. It is funded by a grant from the Office of the National Coordinator of Health Information Technology's Strategic Health IT Advanced Research Projects (SHARP) Program. SMART technologies enable existing electronic health records and HIT platforms to run substitutable apps. Substitutability is the capability inherent in a system of replacing one application with another of similar functionality. We created a patient-facing SMART instance using the open source Indivo personally controlled health record (PCHR). The SMART "read-only" API has been deployed on multiple systems, including the Cerner installation at Boston Children's Hospital and the World Vista EHR. We sought to SMART-enable Indivo, the open source reference PCHR upon which HealthVault and other PCHRs were modeled. PCHRs provide patients with a secure repository of their health information that can be exposed to apps across a programming interface. We updated the open source Indivo PCHR to support the SMART API, enabling Indivo to act as a patient-facing apps platform, running the same or similar versions of apps that face clinicians. PMID:24303239

Franckle, Travers; Haas, Daniel; Mandl, Kenneth D

2013-01-01

36

Science Portal  

NSDL National Science Digital Library

The Australian governmental Web site, Science Portal delivers science information and services to industry, investors, and the research community. The site allows visitors to find relevant links in their field from all of Australia's research and research-related organization Web sites. The portal can be searched or browsed by various research topics including directories and databases, policy, research grants, and more.

37

Community Surface Dynamics Modeling System: images portal  

NSDL National Science Digital Library

The Community Surface Dynamics Modeling System promotes quantitative Earth Science education with models through its images portal, which has collections of images of terrestrial, coastal, and marine environments.

System, Community S.

38

NASA Astrobiology Portal  

NSDL National Science Digital Library

This web site, hosted by NASA Ames Research Center, provides a portal to NASA's astrobiology program. It features astrobiology announcements, events, societal issues, forums, education, and the latest news stories. Links are provided to Astrobiology Magazine, Astrobiology Institute, the astrobiology roadmap, science goals, technologies, missions, workshops, web awards, the media center, public policy, contacts, and more.

2009-08-13

39

Privacy preserving EHR system using attribute-based infrastructure  

Microsoft Academic Search

Secure management of Electronic Health Records (EHR) in a distributed computing environment such as cloud computing where computing resources including storage is provided by a third party service provider is a challenging task. In this paper, we explore techniques which guarantees security and privacy of medical data stored in the cloud. We show how new primitives in attribute-based cryptography can

Shivaramakrishnan Narayan; Martin Gagné; Reihaneh Safavi-Naini

2010-01-01

40

The value of vendor-reported ambulatory EHR benefits data.  

PubMed

Implementation of an electronic health record is expensive and labor-intensive. For this reason, providers often seek information about possible benefits to help them decide whether to implement an EHR. Our study found that a benefits database maintained by an ambulatory clinical systems vendor provided information that is useful, but that also has limitations. PMID:17427467

Thompson, Douglas; Classen, David; Garrido, Terhilda; Bisordi, Joseph; Novogoratz, Scott; Zywiak, Walt

2007-04-01

41

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). PMID:23646079

Bornstein, S.

2012-01-01

42

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

43

EHR query language (EQL)--a query language for archetype-based health records.  

PubMed

OpenEHR specifications have been developed to standardise the representation of an international electronic health record (EHR). The language used for querying EHR data is not as yet part of the specification. To fill in this gap, Ocean Informatics has developed a query language currently known as EHR Query Language (EQL), a declarative language supporting queries on EHR data. EQL is neutral to EHR systems, programming languages and system environments and depends only on the openEHR archetype model and semantics. Thus, in principle, EQL can be used in any archetype-based computational context. In the EHR context described here, particular queries mention concepts from the openEHR EHR Reference Model (RM). EQL can be used as a common query language for disparate archetype-based applications. The use of a common RM, archetypes, and a companion query language, such as EQL, semantic interoperability of EHR information is much closer. This paper introduces the EQL syntax and provides example clinical queries to illustrate the syntax. Finally, current implementations and future directions are outlined. PMID:17911747

Ma, Chunlan; Frankel, Heath; Beale, Thomas; Heard, Sam

2007-01-01

44

Identifying and mitigating biases in EHR laboratory tests.  

PubMed

Electronic health record (EHR) data show promise for deriving new ways of modeling human disease states. Although EHR researchers often use numerical values of laboratory tests as features in disease models, a great deal of information is contained in the context within which a laboratory test is taken. For example, the same numerical value of a creatinine test has different interpretation for a chronic kidney disease patient and a patient with acute kidney injury. We study whether EHR research studies are subject to biased results and interpretations if laboratory measurements taken in different contexts are not explicitly separated. We show that the context of a laboratory test measurement can often be captured by the way the test is measured through time. We perform three tasks to study the properties of these temporal measurement patterns. In the first task, we confirm that laboratory test measurement patterns provide additional information to the stand-alone numerical value. The second task identifies three measurement pattern motifs across a set of 70 laboratory tests performed for over 14,000 patients. Of these, one motif exhibits properties that can lead to biased research results. In the third task, we demonstrate the potential for biased results on a specific example. We conduct an association study of lipase test values to acute pancreatitis. We observe a diluted signal when using only a lipase value threshold, whereas the full association is recovered when properly accounting for lipase measurements in different contexts (leveraging the lipase measurement patterns to separate the contexts). Aggregating EHR data without separating distinct laboratory test measurement patterns can intermix patients with different diseases, leading to the confounding of signals in large-scale EHR analyses. This paper presents a methodology for leveraging measurement frequency to identify and reduce laboratory test biases. PMID:24727481

Pivovarov, Rimma; Albers, David J; Sepulveda, Jorge L; Elhadad, Noémie

2014-10-01

45

The NUCLEONICA Nuclear Science Portal  

SciTech Connect

NUCLEONICA (www.nucleonica.net) is a new nuclear science web portal which provides a customisable, integrated environment and collaboration platform using the latest internet 'Web 2.0' technology. NUCLEONICA is aimed at professionals, academics and students working in nuclear power, health physics and radiation protection, nuclear and radio-chemistry, and astrophysics. A unique feature of the portal is the wide range of user friendly web-based nuclear science applications. The portal is also ideal for education and training purposes and as a knowledge management platform to preserve nuclear knowledge built up over many decades.

Magill, Joseph; Dreher, Raymond [European Commission, Joint Research Centre, Institute for Transuranium Elements, Postfach 2340, 76125 Karlsruhe (Germany)

2009-08-19

46

The NUCLEONICA Nuclear Science Portal  

NASA Astrophysics Data System (ADS)

NUCLEONICA (www.nucleonica.net) is a new nuclear science web portal which provides a customisable, integrated environment and collaboration platform using the latest internet "Web 2.0" technology. NUCLEONICA is aimed at professionals, academics and students working in nuclear power, health physics and radiation protection, nuclear and radio-chemistry, and astrophysics. A unique feature of the portal is the wide range of user friendly web-based nuclear science applications. The portal is also ideal for education and training purposes and as a knowledge management platform to preserve nuclear knowledge built up over many decades.

Magill, Joseph; Dreher, Raymond

2009-08-01

47

A Portal of Educational Resources: Providing Evidence for Matching Pedagogy with Technology  

ERIC Educational Resources Information Center

The TPACK (Technology, Pedagogy and Content Knowledge) model presents the three types of knowledge that are necessary to implement a successful technology-based educational activity. It highlights how the intersections between TPK (Technological Pedagogical Knowledge), PCK (Pedagogical Content Knowledge) and TCK (Technological Content Knowledge)…

Di Blas, Nicoletta; Fiore, Alessandro; Mainetti, Luca; Vergallo, Roberto; Paolini, Paolo

2014-01-01

48

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

49

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

50

Secure portal.  

SciTech Connect

There is a need in security systems to rapidly and accurately grant access of authorized personnel to a secure facility while denying access to unauthorized personnel. In many cases this role is filled by security personnel, which can be very costly. Systems that can perform this role autonomously without sacrificing accuracy or speed of throughput are very appealing. To address the issue of autonomous facility access through the use of technology, the idea of a ''secure portal'' is introduced. A secure portal is a defined zone where state-of-the-art technology can be implemented to grant secure area access or to allow special privileges for an individual. Biometric technologies are of interest because they are generally more difficult to defeat than technologies such as badge swipe and keypad entry. The biometric technologies selected for this concept were facial and gait recognition. They were chosen since they require less user cooperation than other biometrics such as fingerprint, iris, and hand geometry and because they have the most potential for flexibility in deployment. The secure portal concept could be implemented within the boundaries of an entry area to a facility. As a person is approaching a badge and/or PIN portal, face and gait information can be gathered and processed. The biometric information could be fused for verification against the information that is gathered from the badge. This paper discusses a facial recognition technology that was developed for the purposes of providing high verification probabilities with low false alarm rates, which would be required of an autonomous entry control system. In particular, a 3-D facial recognition approach using Fisher Linear Discriminant Analysis is described. Gait recognition technology, based on Hidden Markov Models has been explored, but those results are not included in this paper. Fusion approaches for combining the results of the biometrics would be the next step in realizing the secure portal concept.

Nelson, Cynthia Lee

2007-09-01

51

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

52

Theorizing the links between e-HR and strategic HRM: a model, case illustration and reflections  

Microsoft Academic Search

In this paper we develop a model of e-human resources (e-HR) focusing on the relationship between HR strategy, e-HR goals and architectures, and positive and negative e-HR outcomes. This relationship is moderated by a number of key factors, including the organization and resources of the HR function, the absorptive capacity of HR, the skills and preferred styles of HR professionals,

Graeme Martin; Martin Reddington

2010-01-01

53

Bringing electronic patient records into health professional education: towards an integrative framework.  

PubMed

In this paper we discuss our approach for integrating electronic patient records into health professional education. Electronic patient record (EPR) use is increasing globally. The EPR is considered the cornerstone of the modernization and streamlining of healthcare worldwide. However, despite the importance of the EPR, health professional education in much of the world provides health professional students (who will become the practicing health professionals of the future) with limited access or knowledge about the EPR. New ways of exposing students to EPRs will be needed in order to ensure that health professionals will adopt and use this complex technology wisely and effect the positive benefits EPRs are expected to bring to healthcare globally. In this paper we describe: (a) a framework we have developed for integrating EPRs into health professional education and (b) an innovative Web portal, known as the University of Victoria Electronic Health Record (EHR) Educational Portal (which houses a number of EPRs) that can be used to explore the integration of EPRs in health professional education. It is hoped that adoption and use of EPRs will ultimately be improved through the use of the portal to allow students virtual and ubiquitous access to example EPRs, coupled with principled educational approaches for integrating EPR technology into health professional curricula. PMID:19745439

Kushniruk, Andre W; Borycki, Elizabeth M; Armstrong, Brian; Joe, Ron; Otto, Tony

2009-01-01

54

Contribution of Clinical Archetypes, and the Challenges, towards Achieving Semantic Interoperability for EHRs  

PubMed Central

Objectives The objective is to introduce 'clinical archetype' which is a formal and agreed way of representing clinical information to ensure interoperability across and within Electronic Health Records (EHRs). The paper also aims at presenting the challenges building quality labeled clinical archetypes and the challenges towards achieving semantic interoperability between EHRs. Methods Twenty years of international research, various European healthcare informatics projects and the pioneering work of the openEHR Foundation have led to the following results. Results The requirements for EHR information architectures have been consolidated within ISO 18308 and adopted within the ISO 13606 EHR interoperability standard. However, a generic EHR architecture cannot ensure that the clinical meaning of information from heterogeneous sources can be reliably interpreted by receiving systems and services. Therefore, clinical models called 'clinical archetypes' are required to formalize the representation of clinical information within the EHR. Part 2 of ISO 13606 defines how archetypes should be formally represented. The current challenge is to grow clinical communities to build a library of clinical archetypes and to identify how evidence of best practice and multi-professional clinical consensus should best be combined to define archetypes at the optimal level of granularity and specificity and quality label them for wide adoption. Standardizing clinical terms within EHRs using clinical terminology like Systematized Nomenclature of Medicine Clinical Terms is also a challenge. Conclusions Clinical archetypes would play an important role in achieving semantic interoperability within EHRs. Attempts are being made in exploring the design and adoption challenges for clinical archetypes. PMID:24523993

Kalra, Dipak; Kobayashi, Shinji

2013-01-01

55

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.

56

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.

57

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

58

Meeting EHR security requirements: SeAAS approach.  

PubMed

In the last few years, Electronic Health Record (EHR) systems have received a great attention in the literature, as well as in the industry. They are expected to lead to health care savings, increase health care quality and reduce medical errors. This interest has been accompanied by the development of different standards and frameworks to meet EHR challenges. One of the most important initiatives that was developed to solve problems of EHR is IHE (Integrating the Healthcare Enterprise), which adapts the distributed approach to store and manage healthcare data. IHE aims at standardizing the way healthcare systems exchange information in distributed environments. For this purpose it defines several so called Integration Profiles that specify the interactions and the interfaces (Transactions) between various healthcare systems (Actors) or entities. Security was considered also in few profiles that tackled the main security requirements, mainly authentication and audit trails. The security profiles of IHE currently suffer two drawbacks. First, they apply end point security methodology, which has been proven recently to be insufficient and cumbersome in distributed and heterogeneous environment. Second, the current security profiles for more complex security requirements are oversimplified, vague and do not consider architectural design. This recently changed to some extend e.g., with the introduction of newly published white papers regarding privacy [5] and access control [9]. In order to solve the first problem we utilize results of previous studies conducted in the area of security-aware IHE-based systems and the state-of-the-art Security-as-a-Service approach as a convenient methodology to group domain-wide security needs and overcome the end point security shortcomings. PMID:20543314

Katt, Basel; Trojer, Thomas; Breu, Ruth; Schabetsberger, Thomas; Wozak, Florian

2010-01-01

59

Validating EHR documents: automatic schematron generation using archetypes.  

PubMed

The goal of this study was to examine whether Schematron schemas can be generated from archetypes. The openEHR Java reference API was used to transform an archetype into an object model, which was then extended with context elements. The model was processed and the constraints were transformed into corresponding Schematron assertions. A prototype of the generator for the reference model HL7 v3 CDA R2 was developed and successfully tested. Preconditions for its reusability with other reference models were set. Our results indicate that an automated generation of Schematron schemas is possible with some limitations. PMID:24825691

Pfeiffer, Klaus; Duftschmid, Georg; Rinner, Christoph

2014-01-01

60

With the advancement of Electronic Health Records (EHRs) and automated electronic  

E-print Network

With the advancement of Electronic Health Records (EHRs) and automated electronic protected health that electronic health records (EHR) must include, stage 2 would appear to be aimed at increasing information to their health information. Starting in 2014, providers who have already met stage 1 for two to three years

Fisher, Kathleen

61

Integrating Data from EHRs to Enhance Clinical Decsion Making: the Inflammatory Bowel Disease Case  

E-print Network

Integrating Data from EHRs to Enhance Clinical Decsion Making: the Inflammatory Bowel Disease Case a constant growth of us- ing electronic health records resulting in the availability of enormous amounts In healthcare, the use of electronic health records (EHRs) has been widely adopted. This adoption was encouraged

Sartipi, Kamran

62

Generation of ELGA-compatible radiology reports from the Vienna Hospital Association's EHR system.  

PubMed

In the course of setting up the upcoming Austrian national shared EHR system ELGA, adaptors will have to be implemented for the local EHR systems of all participating healthcare providers. These adaptors must be able to transform EHR data from the internal format of the particular local EHR system to the specified format of the ELGA document types and vice versa. In the course of an ongoing diploma thesis we are currently developing a transformation application that shall allow the generation of ELGA-compatible radiology reports from the local EHR system of the Vienna Hospital Association. Up to now a first prototype has been developed that was tested with six radiology reports. It generates technically valid ELGA radiology reports apart from two errors yielded by the ELGA online validator that rather seem to be bugs of the validator. A medical validation of the reports remains to be done. PMID:24825707

Haider, Jasmin; Hölzl, Konrad; Toth, Herlinde; Duftschmid, Georg

2014-01-01

63

An automated routine childhood immunization approach using openEHR.  

PubMed

This project studies a working but manual immunization system in place in Pakistan, subject to concerns such as poor record-keeping, reaching targeted children and unavailability of latest census. We propose an openEHR-based solution, called Light-weight Electronic Traceable and Updatable System (LETUS), which aims at increasing childhood immunization coverage and traceability. Two key modules of the solution include: (1) a service that collects the data from the immunization workers, computes population estimates for particular regions, and creates alerts if the ratio of vaccinations over population in a region falls outside a certain range (over or under), and (2) several "thin client" modules where workers can enter their collected data and receive feedback about the current coverage in their region. The proposed software system can be integrated into existing regional immunization registry systems, and run on the servers of a local health agency to ensure timely reporting. Within each immunization registry systems, children data is sharable by applying openEHR approach. This solution will gradually replace the current record keeping process by employing smart phone applications and web services. PMID:23920849

Liu, Zhiming; Qamar, Nafees; Qian, Jie

2013-01-01

64

Community Surface Dynamics Modeling System: movies portal  

NSDL National Science Digital Library

The Community Surface Dynamics Modeling System promotes quantitative Earth Science education with models through its movies portal, which has collections of animations of computer models, movies of physical models, and movies of geological events.

System, Community S.

65

AAMC MedEdPORTAL  

NSDL National Science Digital Library

MedEdPORTAL is a free peer-reviewed publication service and repository for medical and oral health teaching materials, assessment tools, and faculty development resources. All copyright and patient privacy issues are addressed during the submission process so users around the globe can download and utilize any and all of the published resources for educational purposes without legal infringements.

Colleges, The A.

2008-01-01

66

Science: Video Portal  

NSDL National Science Digital Library

The folks at Science magazine craft a wide palette of audio visual materials, many of which can be accessed through their video portal. In the Featured Videos, visitors can learn about some recent explorations into education reform, deep sea explorations, and the Higgs boson. Scrolling down the site, visitors will notice that the videos are divided into seven sections, including Engineering, Environment, and Medicine. It's easy to see how these videos could be effectively used in a number of classroom situations to complement existing lectures and presentations. New users might do well to start with the "Alya Red: A Computational Heart" video and the rather thoughtful "California Meteorite Rush." [KMG

2010-01-01

67

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.

68

How to successfully select and implement electronic health records (EHR) in small ambulatory practice settings  

PubMed Central

Background Adoption of EHRs by U.S. ambulatory practices has been slow despite the perceived benefits of their use. Most evaluations of EHR implementations in the literature apply to large practice settings. While there are similarities relating to EHR implementation in large and small practice settings, the authors argue that scale is an important differentiator. Focusing on small ambulatory practices, this paper outlines the benefits and barriers to EHR use in this setting, and provides a "field guide" for these practices to facilitate successful EHR implementation. Discussion The benefits of EHRs in ambulatory practices include improved patient care and office efficiency, and potential financial benefits. Barriers to EHRs include costs; lack of standardization of EHR products and the design of vendor systems for large practice environments; resistance to change; initial difficulty of system use leading to productivity reduction; and perceived accrual of benefits to society and payers rather than providers. The authors stress the need for developing a flexible change management strategy when introducing EHRs that is relevant to the small practice environment; the strategy should acknowledge the importance of relationship management and the role of individual staff members in helping the entire staff to manage change. Practice staff must create an actionable vision outlining realistic goals for the implementation, and all staff must buy into the project. The authors detail the process of implementing EHRs through several stages: decision, selection, pre-implementation, implementation, and post-implementation. They stress the importance of identifying a champion to serve as an advocate of the value of EHRs and provide direction and encouragement for the project. Other key activities include assessing and redesigning workflow; understanding financial issues; conducting training that is well-timed and meets the needs of practice staff; and evaluating the implementation process. Summary The EHR implementation experience depends on a variety of factors including the technology, training, leadership, the change management process, and the individual character of each ambulatory practice environment. Sound processes must support both technical and personnel-related organizational components. Additional research is needed to further refine recommendations for the small physician practice and the nuances of specific medical specialties. PMID:19236705

2009-01-01

69

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.

70

Remote Sensing, New Media and Scientific Literacy for Competence Oriented School Education - A New Integrated Learning Portal  

NASA Astrophysics Data System (ADS)

The project FIS - Fernerkundung in Schulen (German for "Remote Sensing in Schools") - aims at a better integration of remote sensing in school lessons. Respectively, the overall ob-jective is to teach pupils from primary school up to high-school graduation basics and fields of application of remote sensing. Working with remote sensing data opens up new and modern ways of teaching. Therefore many teachers have great interest in the subject "remote sensing", being motivated to integrate this topic into teaching, provided that the curriculum is con-sidered. In many cases, this encouragement fails because of confusing information, which ruins all good intentions. For this reason, a comprehensive and well structured learning portal on the subject remote sensing is developed. This will allow teachers and pupils to have a structured initial understanding of the topic. Recognizing that in-depth use of satellite imagery can only be achieved by the means of computer aided learning methods, a sizeable number of e-Learning contents have been created throughout the last 5 years since the project's kickoff which are now integrated into the learning portal. Three main sections form the backbone of the developed learning portal. 1. The "Teaching Materials" section provides registered teachers with interactive lessons to convey curriculum relevant topics through remote sensing. They are able to use the implemented management system to create classes and enregister pupils, keep track of their progresses and control results of the conducted lessons. Abandoning the functio-nalities of the management system the lessons are also available to non-registered us-ers. 2. Pupils and Teachers can investigate further into remote sensing in the "Research" sec-tion, where a knowledge base alongside a satellite image gallery offer general back-ground information on remote sensing and the provided lessons in a semi interactive manner. 3. The "Analysis Tools" section offers means to further experiment with satellite images by working with predefined sets of Images and Tools. All three sections of the platform are presented exemplary explaining the underlying didactical and technical concepts of the project, showing how they are realized and what their potentials are when put to use in school lessons.

Hodam, H.; Goetzke, R.; Rinow, A.; Voß, K.

2012-04-01

71

HITECH spurs EHR vendor competition and innovation, resulting in increased adoption.  

PubMed

The Health Information Technology for Economic and Clinical Health (HITECH) Act was enacted to increase electronic health record (EHR) adoption by providers and hospitals. Experts expressed skepticism about whether the program would indeed hasten adoption and could be implemented in time for the initial reporting period. Could EHR vendors meet the certification requirements, and could the industry innovate to meet small-practice needs? This study, in addition to documenting increased provider adoption, provides the first evidence of increased competitiveness and innovation in the EHR industry spurred by HITECH. For example, the number of EHR vendors certified for e-prescribing with Surescripts increased from 96 to 229 over the program's first 3 years. We also find that prescribers in small practices increasingly adopted lower-cost, Web-based e-prescribing and EHR applications at significantly higher rates (15%-35%) than did large practices (3%-4%), which generally have more human and capital resources to make significant investments. These findings suggest that EHR vendors were highly responsive to HITECH requirements and have been adapting their strategies to meet nuanced market needs, providing reason to be optimistic about the Programs' future. PMID:25365748

Joseph, Seth; Snow, Max; Furukawa, Michael; Posnack, Steven; Chaffee, Mary Ann

2014-09-01

72

SNOMED CT survey: an assessment of implementation in EMR/EHR applications.  

PubMed

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. PMID:18509501

Giannangelo, Kathy; Fenton, Susan H

2008-01-01

73

Encyclopedia of Portal Technologies  

E-print Network

Encyclopedia of Portal Technologies and Applications Arthur Tatnall Victoria University, Australia of the trademark or registered trademark. Library of Congress Cataloging-in-Publication Data Encyclopedia of portal encyclopedia encompasses the economics of setting up and using personal portals, knowledge management

Fung, Benjamin C. M.

74

Evaluating Open Source Portals  

ERIC Educational Resources Information Center

Portals have become indispensable for organizations of all types trying to establish themselves on the Web. Unfortunately, there have only been a few evaluative studies of portal software and even fewer of open source portal software. This study aims to add to the available literature in this important area by proposing and testing a checklist for…

Goh, Dion; Luyt, Brendan; Chua, Alton; Yee, See-Yong; Poh, Kia-Ngoh; Ng, How-Yeu

2008-01-01

75

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

76

Plug-and-play Integration of dual-model based Knowledge Artefacts into an Open Source Ehr System.  

PubMed

In this paper we present our experiences with extending an existing approach for an archetype-compliant collection and export of data according to the openEHR specifications within the open source EHR system OpenMRS. It allows an automatic generation of forms from templates, which were introduced by openEHR as an extension of the dual-model approach. Data entered in these forms can be exported in form of standardized EHR extracts. The use of templates allowed us to solve problems reported for the original archetype-based version of the approach, which were caused by the high optionality within archetypes. PMID:25160154

Krexner, Rabea; Duftschmid, Georg

2014-01-01

77

Noncirrhotic Portal Hypertension and Portal Vein Thrombosis  

Microsoft Academic Search

Noncirrhotic portal hypertension (NCPH) encompasses a group of diseases of varied etiology. The characteristic features of\\u000a this group are increase in portal pressure caused by prehepatic or intrahepatic causes, with absence of liver cirrhosis, as\\u000a well as of hepatic venous outflow obstruction. The wedged hepatic venous pressure is normal or only mildly elevated. Table 1 lists the common causes of

Shiv K. Sarin; Manav Wadhawan

78

Portal: Your Door to World Languages and Cultures  

ERIC Educational Resources Information Center

Portal: Your Door to World Languages and Cultures was a series of public cultural events, in a variety of formats, created through a new partnership between the credit and continuing education (noncredit) foreign language programs at the Community College of Baltimore County (CCBC). Portal was designed to cultivate interest in foreign languages…

Elliott, Don; Lawton, Rachele

2009-01-01

79

Tools for Data-Driven Decision Making in Teacher Education: Designing a Portal to Conduct Field Observation Inquiry  

ERIC Educational Resources Information Center

Knowledge management (KM) and data-driven decision making (DDDM) are terms that are used with more frequency in teacher education. Although accreditation expectations and the increased focus on accountability have pushed these ideas to the forefront, the tools that support them are still not robust. Electronic portfolio assessment has been one…

Swan, Gerry

2009-01-01

80

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

81

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. PMID:21347075

Senathirajah, Yalini; Kaufman, David; Bakken, Suzanne

2010-01-01

82

Architectural and usability considerations in the development of a Web 2.0-based EHR.  

PubMed

In our previous work, we described an electronic health record (EHR) architecture based on Web 2.0 principles. With this architecture, users in healthcare and public health can select, configure, share and control the information and interfaces they use by means of simple techniques such as "drag-and-drop" without the intervention of programmers. We extend this work by discussing architectural and usability considerations important for creating such an EHR. These include: new affordances facilitating element creation, responsiveness while using rich client-side interaction, consistency versus flexibility, security, workflow and evaluation. PMID:19380954

Senathirajah, Yalini; Bakken, Suzanne

2009-01-01

83

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. PMID:21992670

2011-01-01

84

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

85

TCGA Data Portal Downtime  

Cancer.gov

Home News and Events News Releases and Announcements TCGA Data Portal Downtime Announcement Posted: March 14, 2012 TCGA Data Portal Downtime Starting on Saturday, March 17th, the DCC will begin a migration of all software and data to new hardware. 

86

EIoPortal: European Integration Online Portal  

NSDL National Science Digital Library

Researchers in European studies will be interested to know that the Website of European Integration Online Papers (EIOP) (see the June 13, 1997 Scout Report) has become the European Integration Online Portal, offering direct links to not only the working papers of EIOP but to the European Research Papers Archive and to Euronet, a gateway to Internet sites and resources on issues of European Integration. With this grouping, the portal already constitutes a substantial outlet for scholarship on European studies, and plans are reportedly in the works for further enhancement.

87

Building Your Campus Portal: Advice from the Field.  

ERIC Educational Resources Information Center

Discusses portal technology in higher education, including planning, design, technical, and financial issues. Highlights include determining the customers; marketing possibilities for the university; ownership issues; data design; effective cost structuring; security issues; adaptability; content; and customer input and feedback. (LRW)

Krebs, Arlene

2001-01-01

88

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

89

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

90

Content-based Access to EHRs Providing evaluation infrastructure in support of text  

E-print Network

Content-based Access to EHRs Providing evaluation infrastructure in support of text processing is a fundamental usage requirement for electronic health record management systems. Today's systems provide access with many non-word terms including abbreviations, measurements, symbols, and the like. · The notations

91

Designing a Secure Cloud-Based EHR System using Ciphertext-Policy Attribute-Based Encryption  

E-print Network

- ever, before cloud-based EHR systems can become a reality, issues of data security, patient privacy General Terms Algorithms, Design, Security, Theory Keywords Cloud Computing, Electronic Health Records to improve healthcare qual- ity. Cloud computing has been viewed as an appropriate platform to deploy

Radziszowski, Stanislaw P.

92

HCPP: Cryptography Based Secure EHR System for Patient Privacy and Emergency Healthcare  

E-print Network

of healthcare systems. Statistical results of the actual adoption rate of EHR in US medical systems can be found circumstances while enabling timely PHI retrieval for life-saving treatment in emergency situations. Furthermore The development and management of medical systems concern all of us since we will inevitably be the users

Latchman, Haniph A.

93

A Correlational Analysis: Electronic Health Records (EHR) and Quality of Care in Critical Access Hospitals  

ERIC Educational Resources Information Center

Driven by the compulsion to improve the evident paucity in quality of care, especially in critical access hospitals in the United States, policy makers, healthcare providers, and administrators have taken the advise of researchers suggesting the integration of technology in healthcare. The Electronic Health Record (EHR) System composed of multiple…

Khan, Arshia A.

2012-01-01

94

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. PMID:22480327

2012-01-01

95

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. PMID:20974549

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

2010-01-01

96

Portal hypertension and variceal hemorrhage.  

PubMed

Portal hypertension, a major hallmark of cirrhosis, is defined as a portal pressure gradient exceeding 5 mm Hg. In portal hypertension, porto-systemic collaterals decompress the portal circulation and give rise to varices. Successful management of portal hypertension and its complications requires knowledge of the underlying pathophysiology, the pertinent anatomy, and the natural history of the collateral circulation, particularly the gastroesophageal varices. PMID:18387376

Toubia, Nagib; Sanyal, Arun J

2008-05-01

97

Project Finance Portal  

NSDL National Science Digital Library

Benjamin Esty at the Harvard Business School (HBS) has created this all-encompassing portal intended to serve as a reference guide for project finance students, faculty, and researchers. The resources on the site are divided into two main sections. The Research and Publications list is directed at the academic community and includes bibliographies of articles, books and book chapters, and trade magazines, as well as syllabi from business and law school courses from the top schools around the world, case studies, and rating agency information. The other section, Project Finance Links, functions as a standard portal, with over 800 annotated links to related Websites. All references to books, case studies, and articles are linked to the Harvard Business School online catalog for easier access by the HBS community. For librarians and Webmasters, the Project Finance Portal will serve as a stellar model of a portal for a library community.

Esty, Benjamin.

2005-11-16

98

Project Finance Portal  

NSDL National Science Digital Library

Benjamin Esty at the Harvard Business School (HBS) has created this all-encompassing portal intended to serve as a reference guide for project finance students, faculty, and researchers. The resources on the site are divided into two main sections. The Research and Publications list is directed at the academic community and includes bibliographies of articles, books and book chapters, and trade magazines, as well as syllabi from business and law school courses from the top schools around the world, case studies, and rating agency information. The other section, Project Finance Links, functions as a standard portal, with over 800 annotated links to related Websites. All references to books, case studies, and articles are linked to the Harvard Business School online catalog for easier access by the HBS community. For librarians and Webmasters, the Project Finance Portal will serve as a stellar model of a portal for a library community.

Esty, Benjamin.

99

Pregnancy and Portal Hypertension  

Microsoft Academic Search

Pregnancy is a normal physiological state characterized by numerous hemodynamic changes. These hemodynamic changes, although\\u000a necessary for a normal pregnancy, pose a special problem in the presence of portal hypertension. In North America, cirrhosis\\u000a of the liver is the most common cause of portal hypertension. Although rare, the occurrence of pregnancy is not altogether\\u000a unknown in this population. This is

Bimaljit Sandhu; Arun J. Sanyal

100

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

101

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

102

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. PMID:23268489

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

103

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

104

Despite substantial progress In EHR adoption, health information exchange and patient engagement remain low in office settings.  

PubMed

The United States is making substantial investments to accelerate the adoption and use of interoperable electronic health record (EHR) systems. Using data from the 2009-13 Electronic Health Records Survey, we found that EHR adoption continues to grow: In 2013, 78 percent of office-based physicians had adopted some type of EHR, and 48 percent had the capabilities required for a basic EHR system. However, we also found persistent gaps in EHR adoption, with physicians in solo practices and non-primary care specialties lagging behind others. Physicians' electronic health information exchange with other providers was limited, with only 14 percent sharing data with providers outside their organization. Finally, we found that 30 percent of physicians routinely used capabilities for secure messaging with patients, and 24 percent routinely provided patients with the ability to view online, download, or transmit their health record. These findings suggest that although EHR adoption continues to grow, policies to support health information exchange and patient engagement will require ongoing attention. PMID:25104827

Furukawa, Michael F; King, Jennifer; Patel, Vaishali; Hsiao, Chun-Ju; Adler-Milstein, Julia; Jha, Ashish K

2014-09-01

105

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

106

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

107

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. PMID:24392231

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

2013-01-01

108

Job Application Portal Manual for the Job Application Portal  

E-print Network

Job Application Portal Manual for the Job Application Portal in the University of Gothenburg e-recruitment system #12;The University of Gothenburg 2/10 Contents The University of Gothenburg's Job Application.............................................................................................................................................. 10 #12;The University of Gothenburg 3/10 The University of Gothenburg's Job Application Portal

Johannesson, Henrik

109

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

110

Clinician preferences for verbal communication compared to EHR documentation in the ICU  

PubMed Central

Background Effective communication is essential to safe and efficient patient care. Additionally, many health information technology (HIT) developments, innovations, and standards aim to implement processes to improve data quality and integrity of electronic health records (EHR) for the purpose of clinical information exchange and communication. Objective We aimed to understand the current patterns and perceptions of communication of common goals in the ICU using the distributed cognition and clinical communication space theoretical frameworks. Methods We conducted a focus group and 5 interviews with ICU clinicians and observed 59.5 hours of interdisciplinary ICU morning rounds. Results Clinicians used an EHR system, which included electronic documentation and computerized provider order entry (CPOE), and paper artifacts for documentation; yet, preferred the verbal communication space as a method of information exchange because they perceived that the documentation was often not updated or efficient for information retrieval. These perceptions that the EHR is a “shift behind” may lead to a further reliance on verbal information exchange, which is a valuable clinical communication activity, yet, is subject to information loss. Conclusions Electronic documentation tools that, in real time, capture information that is currently verbally communicated may increase the effectiveness of communication. PMID:23616870

Collins, S.A.; Bakken, S.; Vawdrey, D.K.; Coiera, E.; Currie, L

2011-01-01

111

Costs of Health IT: Beginning to Understand the Financial Impact of a Dental School EHR.  

PubMed

Health Information Technology (Health IT) constitutes an integral component of the operations of most academic dental institutions nowadays. However, the expenses associated with the acquisition and the ongoing maintenance of these complex systems have often been buried among costs for other electronic infrastructure systems, distributed across various cost centers including unmeasured central campus support, covered centrally and therefore difficult to quantify, and spread over years, denying school administrators a clear understanding of the resources that have been dedicated to Health IT. The aim of this study was to understand the financial impact of Health IT at four similar U.S. dental schools: two schools using a purchased Electronic Health Record (EHR), and two schools that developed their own EHR. For these schools, the costs of creating ($2.5 million) and sustaining ($174,000) custom EHR software were significantly higher than acquiring ($500,000) and sustaining ($121,000) purchased software. These results are based on historical data and should not be regarded as a gold standard for what a complete Health IT suite should cost. The presented data are intended to inform school administrators about the myriad of costs associated with Health IT and give them a point of reference when comparing costs or making estimates for implementation projects. PMID:25362696

Spallek, Heiko; Johnson, Lynn; Kerr, Joseph; Rankin, David

2014-11-01

112

Target detection portal  

DOEpatents

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

113

Portal hypertension with visceral leishmaniasis  

Microsoft Academic Search

We conducted this study to observe evidence of portal hypertension in children with visceral leishmaniasis (VL). Eighty-eight\\u000a consecutive cases (50 male) of VL were subjected to ultrasonography. Those with evidence of portal hypertension also underwent\\u000a upper gastrointestinal endoscopy and liver biopsy. Eight patients had portal hypertension as evidenced by dilated caliber\\u000a of portal and splenic veins. Two patients had periportal,

Rajniti Prasad; Utpal Kant Singh; O. P. Mishra; B. P. Jaiswal; Sunil Muthusami

2010-01-01

114

Clinical Manifestations of Portal Hypertension  

PubMed Central

The portal hypertension is responsible for many of the manifestations of liver cirrhosis. Some of these complications are the direct consequences of portal hypertension, such as gastrointestinal bleeding from ruptured gastroesophageal varices and from portal hypertensive gastropathy and colopathy, ascites and hepatorenal syndrome, and hypersplenism. In other complications, portal hypertension plays a key role, although it is not the only pathophysiological factor in their development. These include spontaneous bacterial peritonitis, hepatic encephalopathy, cirrhotic cardiomyopathy, hepatopulmonary syndrome, and portopulmonary hypertension. PMID:23024865

Al-Busafi, Said A.; McNabb-Baltar, Julia; Farag, Amanda; Hilzenrat, Nir

2012-01-01

115

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

116

The EBI enzyme portal  

PubMed Central

The availability of comprehensive information about enzymes plays an important role in answering questions relevant to interdisciplinary fields such as biochemistry, enzymology, biofuels, bioengineering and drug discovery. At the EMBL European Bioinformatics Institute, we have developed an enzyme portal (http://www.ebi.ac.uk/enzymeportal) to provide this wealth of information on enzymes from multiple in-house resources addressing particular data classes: protein sequence and structure, reactions, pathways and small molecules. The fact that these data reside in separate databases makes information discovery cumbersome. The main goal of the portal is to simplify this process for end users. PMID:23175605

Alcantara, Rafael; Onwubiko, Joseph; Cao, Hong; de Matos, Paula; Cham, Jennifer A.; Jacobsen, Jules; Fischer, Julia D.; Rahman, Syed Asad; Jassal, Bijay; Goujon, Mikael; Rowland, Francis; Velankar, Sameer; Lopez, Rodrigo; Overington, John P.; Kleywegt, Gerard J.; Hermjakob, Henning; O'Donovan, Claire; Martin, Maria Jesus; Thornton, Janet M.; Steinbeck, Christoph

2013-01-01

117

Improving Diabetes Management With a Patient Portal: Qualitative Study of a Diabetes Self-Management Portal  

PubMed Central

Background Effective management and care of diabetes is crucial to reducing associated risks such as heart disease and kidney failure. With increasing access and use of the Internet, online chronic disease management is being explored as a means of providing patients with support and the necessary tools to monitor and manage their disease. Objective The objective of our study was to evaluate the experience of patients and providers using an online diabetes management portal for patients. Methods Participants were recruited from a large sample population of 887 for a follow-up questionnaire to be completed after 6 months of using the patient portal. Participants were presented with the option to participate in an additional interview and, if the participant agreed, a time and date was scheduled for the interview. A 5-item, open-ended questionnaire was used to capture providers' opinions of the patient portal. Providers included general practitioners (GPs), nurses, nurse practitioners (NPs), dieticians, diabetes educators (DECs), and other clinical staff. Results A total of 854 patients were consented for the questionnaire. Seventeen (8 male, 9 female) patients agreed to participate in a telephone interview. Sixty-four health care providers completed the five open-ended questions; however, an average of 48.2 responses were recorded per question. Four major themes were identified and will be discussed in this paper. These themes have been classified as: facilitators of disease management, barriers to portal use, patient-provider communication and relationship, and recommendations for portal improvements. Conclusions This qualitative study shows that online chronic disease management portals increase patient access to information and engagement in their health care, but improvements in the portal itself may improve usability and reduce attrition. Furthermore, this study identifies a grey area that exists in the roles that GPs and AHPs should play in the facilitation of online disease management. PMID:23195925

Dupak, Kourtney; Kuehner, Zachary; Leonard, Kevin; Lovrics, Emily; Picton, Peter; Seto, Emily; Cafazzo, Joe

2012-01-01

118

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.

119

NCAR Community Data Portal  

NSDL National Science Digital Library

The Community Data Portal (CDP) is a collection of earth science datasets and applications from NCAR, UCAR, UOP, and participating organizations in the following research areas: oceanic, atmospheric, space weather, and turbulence. CDP provides an easy to use interface for finding, downloading and analyzing scientific datasets. CDP is an NCAR strategic initiative funded by the National Science Foundation.

Middleton, Don; Cinquini, Luca

2003-06-19

120

More than half of US hospitals have at least a basic EHR, but stage 2 criteria remain challenging for most.  

PubMed

The national effort to promote the adoption and meaningful use of electronic health records (EHRs) is well under way. However, 2014 marks an important transition: For many hospitals, penalties will be assessed in fiscal year 2015 for failing to meet federal meaningful-use criteria by the end of fiscal year 2014. We used recent data from the American Hospital Association Annual Survey of Hospitals--IT Supplement to assess progress and challenges. EHR adoption among US hospitals continues to rise steeply: 59 percent now have at least a basic EHR. Small and rural hospitals continue to lag behind their better resourced counterparts. Most hospitals are able to meet many of the stage 2 meaningful-use criteria, but only 5.8 percent of hospitals are able to meet them all. Several criteria, including sharing care summaries with other providers and providing patients with online access to their data, will require attention from EHR vendors to ensure that the necessary functions are available and additional effort from many hospitals to make certain that these functionalities are used. Policy makers may want to consider new targeted strategies to ensure that all hospitals move toward meaningful use of EHRs. PMID:25104826

Adler-Milstein, Julia; DesRoches, Catherine M; Furukawa, Michael F; Worzala, Chantal; Charles, Dustin; Kralovec, Peter; Stalley, Samantha; Jha, Ashish K

2014-09-01

121

Knowledge portal: a tool to capture university requirements  

NASA Astrophysics Data System (ADS)

New technologies, especially, the Internet have made a huge impact on knowledge management and information dissemination in education. The web portal as a knowledge management system is very popular topics in many organizations including universities. Generally, a web portal defines as a gateway to online network accessible resources through the intranet, extranet or Internet. This study develops a knowledge portal for the students in the Faculty of Computer Science and Information Technology (FCSIT), University of Malaya (UM). The goals of this portal are to provide information for the students to help them to choose the right courses and major that are relevant to their intended future jobs or career in IT. A quantitative approach used as the selected method for this research. Quantitative method provides an easy and useful way to collect data from a large sample population.

Mansourvar, Marjan; Binti Mohd Yasin, Norizan

2011-10-01

122

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

NSF Publications Database

... 61 Appendix A: ?Shaping the Future? and ?From Analysis to Action? EHR Advisory Committee Reviews the ... and the companion study of the NRC: From Analysis to Action: Undergraduate Education in Science ...

123

Portal vein thrombosis  

Microsoft Academic Search

Opinion statement  Portal vein thrombosis (PVT) can be a difficult clinical problem to assess and manage. A high index of suspicion is needed\\u000a for a PVT diagnosis given the subtle presentation and potentially serious long-term complications. It should be considered\\u000a a clue to the presence of one or several underlying disorders, including prothrombotic disorders, whether or not a local precipitating\\u000a factor

Hector Rodriguez-Luna; Hugo E. Vargas

2007-01-01

124

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

NASA Astrophysics Data System (ADS)

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 consists of the components of the XDS-I Registry, Repository, Source and Consumer actors. By using SOA, the solution uses ebXML over secured http for all transactions with in the grid. However, communication with the PACS and RIS is DICOM and HL7 v3.x. The solution was installed in three hospitals and one date center in Shanghai and tested for performance of data publication, user query and image retrieval. The results are extremely positive and demonstrate that the EHR solution based on SOA with grid concept can scale effectively to server a regional implementation.

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

2007-03-01

125

Searching for document contents in an IHE-XDS EHR architecture via archetype-based indexing of document types.  

PubMed

The shared EHR (electronic health record) system architecture IHE XDS is widely adopted internationally. It ensures a high level of data privacy via distributed storage of EHR documents. Its standard search capabilities, however, are limited; it only allows a retrieval of complete documents by querying a restricted set of document metadata. Existing approaches that aim to extend XDS queries to document contents typically employ a central index of document contents. Hereby they undermine XDS' basic characteristic of distributed data storage. To avoid data privacy concerns, we propose querying EHR contents in XDS by indexing document types based on Archetypes instead. We successfully tested our approach within the ISO/EN 13606 standard. PMID:23920866

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

2013-01-01

126

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

127

Portal Annular Pancreas  

PubMed Central

Abstract Portal annular pancreas (PAP) is an asymptomatic congenital pancreas anomaly, in which portal and/or mesenteric veins are encased by pancreas tissue. The aim of the study was to determine the role of PAP in pancreatic surgery as well as its management and potential complication, specifically, postoperative pancreatic fistula (POPF). On the basis of a case report, the MEDLINE and ISI Web of Science databases were systematically reviewed up to September 2012. All articles describing a case of PAP were considered. In summary, 21 studies with 59 cases were included. The overall prevalence of PAP was 2.4% and the patients' mean (SD) age was 55.9 (16.2) years. The POPF rate in patients with PAP (12 pancreaticoduodenectomies and 3 distal pancreatectomies) was 46.7% (in accordance with the definition of the International Study Group of Pancreatic Surgery). Portal annular pancreas is a quite unattended pancreatic variant with high prevalence and therefore still remains a clinical challenge to avoid postoperative complications. To decrease the risk for POPF, attentive preoperative diagnostics should also focus on PAP. In pancreaticoduodenectomy, a shift of the resection plane to the pancreas tail should be considered; in extensive pancreatectomy, coverage of the pancreatic remnant by the falciform ligament could be a treatment option. PMID:25207658

Harnoss, Jonathan M.; Harnoss, Julian C.; Diener, Markus K.; Contin, Pietro; Ulrich, Alexis B.; Buchler, Markus W.; Schmitz-Winnenthal, Friedrich H.

2014-01-01

128

IDL Grid Web Portal  

NASA Astrophysics Data System (ADS)

Image Data Language is a software for data analysis, visualization and cross-platform application development. The potentiality of IDL is well-known in the academic scientific world, especially in the astronomical environment where thousands of procedures are developed by using IDL. The typical use of IDL is the interactive mode but it is also possible to run IDL programs that do not require any interaction with the user, submitting them in batch or background modality. Through the interactive mode the user immediately receives images or other data produced in the running phase of the program; in batch or background mode, the user will have to wait for the end of the program, sometime for many hours or days to obtain images or data that IDL produced as output: in fact in Grid environment it is possible to access to or retrieve data only after completion of the program. The work that we present gives flexibility to IDL procedures submitted to the Grid computer infrastructure. For this purpose we have developed an IDL Grid Web Portal to allow the user to access the Grid and to submit IDL programs granting a full job control and the access to images and data generated during the running phase, without waiting for their completion. We have used the PHP technology and we have given the same level of security that Grid normally offers to its users. In this way, when the user notices that the intermediate program results are not those expected, he can stop the job, change the parameters to better satisfy the computational algorithm and resubmit the program, without consuming the CPU time and other Grid resources. The IDL Grid Web Portal allows you to obtain IDL generated images, graphics and data tables by using a normal browser. All conversations from the user and the Grid resources occur via Web, as well as authentication phases. The IDL user has not to change the program source much because the Portal will automatically introduce the appropriate modification before submitting the IDL program to the Grid. When the user wishes, he will be able to check the status of his program and outputs, if any, because the Portal will assign the users a specific and univocal session identification number. This Web portal runs in the Trinacria Grid Virtual Laboratory and fully exploits the power of this grid in terms of CPU and data storage.

Massimino, P.; Costa, A.

2008-08-01

129

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

130

Delivering quality. Rapid implementation of a centrally hosted, interoperable ambulatory EHR throughout all hospital markets of the Franciscan Missionaries of Our Lady Health System.  

PubMed

This article outlines a comprehensive strategic and operational plan for creation of the EHR Franciscan Missionaries of Our Lady Health System Implementation Team to enable implementation of a centrally hosted, interoperable ambulatory EHR throughout all hospital markets of the Franciscan Missionaries of Our Lady Health System, in Louisiana. This initiative involves a "focused factory" approach to competitively meet market demands for ambulatory EHR delivery under EHR Stark safe harbor provisions; leverage economies of scale; promote information exchange; improve care delivery; and foster physician collaboration, adoption and satisfaction. The plan consists of two phases--a 120-day rapid implementation of EHR for one practice site in each of the System's four markets and ongoing 60-day standard implementation for qualifying physician practices in all the hospitals in the System's markets. PMID:19267003

Mills, Stephanie; Blackburn, Claudia

2008-01-01

131

Comparison of response times of a mobile-web EHRs system using PHP and JSP languages.  

PubMed

Performance evaluation is highly important in the Electronic Health Records (EHRs) system implementation. Response time's measurement can be considered as one manner to make that evaluation. In the e-health field, after the creation of EHRs available through different platforms such as Web and/or mobile, a performance evaluation is necessary. The operation of the system in the right way is essential. In this paper, a comparison of the response times for the MEHRmobile system is presented. The first version uses PHP language with a MySQL database and the second one employs JSP with an eXist database. Both versions have got the same functionalities. In addition to the technological aspects, a significant difference is the way the information is stored. The main goal of this paper is choosing the version which offers better response times. We have created a new benchmark to calculate the response times. Better results have been obtained for the PHP version. Nowadays, this version is being used for specialists from Fundación Intras, Spain. PMID:22706897

De la Torre-Díez, Isabel; Antón-Rodríguez, Míriam; Díaz-Pernas, Francisco Javier; Perozo-Rondón, Freddy José

2012-12-01

132

Assessing the benefit of a personalized EHR-generated informed consent in a dental school setting.  

PubMed

Informed consents are routinely used as an important source of information to help patients make appropriate clinical decisions. However, current standard consent forms may not accomplish their intended purpose due to the variety of patient literacy and experiences and, in the dental school setting, the developing competence of students. The purpose of this pilot study was to test the efficacy of a personalized informed consent generated through an electronic health record (EHR) at one dental school and its role in patient decision making. In the study, a set of informed consents, or SmartConsents, were developed for specific diagnoses and procedures, enhanced with graphics, and delivered through the school's EHR. Fifty patients were recruited in the school's Urgent Care Clinic and divided evenly into two groups: one (control) receiving the standard consent, with the second receiving a SmartConsent. Following treatment, patients were assessed based on demographics, decisional conflict, satisfaction, health literacy, and knowledge. Overall, there were no significant differences in main effects between SmartConsent and standard informed consents for decisional conflict and satisfaction, although significant differences were identified during secondary analysis of satisfaction, gender, and ethnicity. The study also demonstrated the potential for consents to aid the student provider in better communicating with patients. PMID:25086152

Valenza, John A; Taylor, David; Walji, Muhammad F; Johnson, Craig W

2014-08-01

133

The Protein Model Portal.  

PubMed

Structural Genomics has been successful in determining the structures of many unique proteins in a high throughput manner. Still, the number of known protein sequences is much larger than the number of experimentally solved protein structures. Homology (or comparative) modeling methods make use of experimental protein structures to build models for evolutionary related proteins. Thereby, experimental structure determination efforts and homology modeling complement each other in the exploration of the protein structure space. One of the challenges in using model information effectively has been to access all models available for a specific protein in heterogeneous formats at different sites using various incompatible accession code systems. Often, structure models for hundreds of proteins can be derived from a given experimentally determined structure, using a variety of established methods. This has been done by all of the PSI centers, and by various independent modeling groups. The goal of the Protein Model Portal (PMP) is to provide a single portal which gives access to the various models that can be leveraged from PSI targets and other experimental protein structures. A single interface allows all existing pre-computed models across these various sites to be queried simultaneously, and provides links to interactive services for template selection, target-template alignment, model building, and quality assessment. The current release of the portal consists of 7.6 million model structures provided by different partner resources (CSMP, JCSG, MCSG, NESG, NYSGXRC, JCMM, ModBase, SWISS-MODEL Repository). The PMP is available at http://www.proteinmodelportal.org and from the PSI Structural Genomics Knowledgebase. PMID:19037750

Arnold, Konstantin; Kiefer, Florian; Kopp, Jürgen; Battey, James N D; Podvinec, Michael; Westbrook, John D; Berman, Helen M; Bordoli, Lorenza; Schwede, Torsten

2009-03-01

134

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.

135

Portals to the World  

NSDL National Science Digital Library

Presented by the Library of Congress, Portals to the World is an electronic database containing selective links that provide information on the various nations and other areas of the world. Countries are arranged alphabetically and contain links sorted in areas such as General Resources, Government and Law, Literature and Culture, News and Current Events, Libraries, Business and Residential Directories, and much more. Although in a nascent stage, the site provides a vast amount of links for each listed country. When completed, the project intends to have all the nations of the world included on its Web page.

136

What is a Consumer Portal?  

Microsoft Academic Search

The consumer portal is at the interface of the electrical network and the customer. It is a set of functions and capabilities that enables services for utility customers and also enables advanced applications that benefit the electrical system operation. Examples of portal applications include AMR, demand response, real time pricing, theft detection, remote disconnect, energy management, DER interface and control,

A. Didierjean

2006-01-01

137

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

138

Modeling shared care plans using CONTsys and openEHR to support shared homecare of the elderly  

PubMed Central

This case report describes how two complementary standards, CONTsys (European Standard EN 13940-1 for continuity of care) and the reference model of openEHR, were applied in modeling a shared care plan for shared homecare based on requirements from the OLD@HOME project. Our study shows that these requirements are matched by CONTsys on a general level. However, certain attributes are not explicit in CONTsys, for example agents responsible for performing planned interventions, and support for monitoring outcome of interventions. We further studied how the care plan conceptual model can be implemented using the openEHR reference model. The study demonstrates the feasibility of developing shared care plans combining a standard concept model, for example CONTsys with an electronic health records (EHR) interoperability specification, that is the openEHR, while highlighting areas that need further exploration. It also explores the reusability of existing clinical archetypes as building blocks of care plans and the modeling of new shared care plan archetypes. PMID:21106993

Chen, Rong; Koch, Sabine

2010-01-01

139

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

140

Lepton Portal Dark Matter  

E-print Network

We study a class of simplified dark matter models in which dark matter couples directly with a mediator and a charged lepton. This class of Lepton Portal dark matter models has very rich phenomenology: it has loop generated dark matter electromagnetic moments that generate a direct detection signal; it contributes to indirect detection in the cosmic positron flux via dark matter annihilation; it provides a signature of the same-flavor, opposite-sign dilepton plus missing transverse energy at colliders. We determine the current experimental constraints on the model parameter space for Dirac fermion, Majorana fermion and complex scalar dark matter cases of the Lepton Portal framework. We also perform a collider study for the 14 TeV LHC reach with 100 inverse femtobarns for dark matter parameter space. For the complex scalar dark matter case, the LHC provides a very stringent constraint and its reach can be interpreted as corresponding to a limit as strong as two tenths of a zeptobarn on the dark matter-nucleon scattering cross section for dark matter masses up to 500 GeV. We also demonstrate that one can improve the current collider searches by using a Breit-Wigner like formula to fit the dilepton MT2 tail of the dominant diboson background.

Yang Bai; Joshua Berger

2014-02-26

141

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

142

The parallel virtual file system for portals.  

SciTech Connect

This report presents the result of an effort to re-implement the Parallel Virtual File System (PVFS) using Portals as the transport. This report provides short overviews of PVFS and Portals, and describes the design and implementation of PVFS over Portals. Finally, the results of performance testing of both stock PVFS and PVFS over Portals are presented.

Schutt, James Alan

2004-04-01

143

Common bile duct obstruction by portal cavernoma  

Microsoft Academic Search

Summary Obstructive jaundice occurring in a patient with portal hypertension is a rare association. In this report, a 24-year-old patient is described who had biliary obstruction due to a portal cavernoma compressing the common bile duct and in whom surgical decompression of the portal system resulted in relief of the biliary obstruction, thus proving that the dilated portal vein collaterals

G. Choudhuri; R. K. Tandon; S. Nundy; N. K. Misra

1988-01-01

144

Automatic acquisition of synonyms from French UMLS for enhanced search of EHRs.  

PubMed

Currently, the use of Natural Language Processing (NLP) approaches in order to improve search and exploration of electronic health records (EHRs) within healthcare information systems is not a common practice. One reason for this is the lack of suitable lexical resources: various types of such resources need to be collected or acquired. In this work, we propose a novel method for the acquisition of synonymous resources. This method is language-independent and relies on existence of structured terminologies. It enables to decipher hidden synonymous relations between simple words and terms on the basis of their syntactic analysis and exploitation of their compositionality. Applied to series of synonym terms from the French subset of the UMLS, the method shows 99% precision. The overlap between thus inferred terms and the existing sparse resources of synonyms is very low. PMID:18487831

Grabar, Natalia; Varoutas, Paul-Christophe; Rizand, Philippe; Livartowski, Alain; Hamon, Thierry

2008-01-01

145

AgNIC Portal  

NSDL National Science Digital Library

Started in 1995, the Agriculture Network Information Center (AgNIC), is part of a collaborative alliance between various libraries and extension programs at different universities and other institutions. This partnership is designed to bring quality agricultural information to those parties and to the general public as well. Starting at the Center's homepage, visitors can view their featured site, search the entire contents, or look at the portal's features in detail. Visitors can also browse by topic, which include such subjects as entomology, plant science, and rural and agricultural sociology. Within each topic, visitors will find a host of informative resources, such as the proceedings of relevant conferences, plant and insect management guides and notes on how to maintain an optimal environment for dairy cows. Finally, visitors can also browse through a very well-maintained calendar of events and a news center.

146

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

147

The Hague Justice Portal  

NSDL National Science Digital Library

Initiated by The Hague Academic Coalition and launched by Her Royal Highness Princess Margriet of the Netherlands in 2006, The Hague Justice Portal serves as the online presence of the Hague organizations and their work on issues related to international peace, justice, and security. On the homepage, visitors can get acquainted with their work by perusing the "News" area and also looking over the list of legal events which appears along the right-hand side of the page. The "International Justice Forum" section contains a series of interactive forums designed to facilitate discussion on topics related to international law, and it will be particularly helpful to legal scholars and journalists. Additionally, legal scholars will want to take a look at the current issues of the Hague Justice Journal, which contains articles on sovereignty, victim participation in the legal process, and other related matters. Visitors should also note that many of the materials on the site are available in French and Dutch.

148

Surgery for Portal Hypertension in Children  

Microsoft Academic Search

Management of children with portal hypertension has evolved considerably over the past decades. Development of physiologic\\u000a shunts (meso-Rex bypass) and successful liver transplant has changed the paradigm of portal hypertension surgery. Children\\u000a with pre-hepatic portal hypertension are investigated and, if suitable, candidates are offered the mesenteric-to-left portal\\u000a vein bypass (meso-Rex) preemptively, before development of symptoms of portal hypertension. Aggressive medical

Stefan Scholz; Khalid Sharif

2011-01-01

149

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

150

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

151

Electronic health record training in undergraduate medical education: bridging theory to practice with curricula for empowering patient- and relationship-centered care in the computerized setting.  

PubMed

While electronic health record (EHR) use is becoming state-of-the-art, deliberate teaching of health care information technology (HCIT) competencies is not keeping pace with burgeoning use. Medical students require training to become skilled users of HCIT, but formal pedagogy within undergraduate medical education (UME) is sparse. How can medical educators best meet the needs of learners while integrating EHRs into medical education and practice? How can they help learners preserve and foster effective communication skills within the computerized setting? In general, how can UME curricula be devised for skilled use of EHRs to enhance rather than hinder provision of effective, humanistic health care?Within this Perspective, the authors build on recent publications that "set the stage" for next steps: EHR curricula innovation and implementation as concrete embodiments of theoretical underpinnings. They elaborate on previous calls for maximizing benefits and minimizing risks of EHR use with sufficient focus on physician-patient communication skills and for developing core competencies within medical education. The authors describe bridging theory into practice with systematic longitudinal curriculum development for EHR training in UME at their institution, informed by Kern and colleagues' curriculum development framework, narrative medicine, and reflective practice. They consider this innovation within a broader perspective-the overarching goal of empowering undergraduate medical students' patient- and relationship-centered skills while effectively demonstrating HCIT-related skills. PMID:24448045

Wald, Hedy S; George, Paul; Reis, Shmuel P; Taylor, Julie Scott

2014-03-01

152

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

153

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

154

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

155

Are Meaningful Use Stage 2 certified EHRs ready for interoperability? Findings from the SMART C-CDA Collaborative  

PubMed Central

Background and objective Upgrades to electronic health record (EHR) systems scheduled to be introduced in the USA in 2014 will advance document interoperability between care providers. Specifically, the second stage of the federal incentive program for EHR adoption, known as Meaningful Use, requires use of the Consolidated Clinical Document Architecture (C-CDA) for document exchange. In an effort to examine and improve C-CDA based exchange, the SMART (Substitutable Medical Applications and Reusable Technology) C-CDA Collaborative brought together a group of certified EHR and other health information technology vendors. Materials and methods We examined the machine-readable content of collected samples for semantic correctness and consistency. This included parsing with the open-source BlueButton.js tool, testing with a validator used in EHR certification, scoring with an automated open-source tool, and manual inspection. We also conducted group and individual review sessions with participating vendors to understand their interpretation of C-CDA specifications and requirements. Results We contacted 107 health information technology organizations and collected 91 C-CDA sample documents from 21 distinct technologies. Manual and automated document inspection led to 615 observations of errors and data expression variation across represented technologies. Based upon our analysis and vendor discussions, we identified 11 specific areas that represent relevant barriers to the interoperability of C-CDA documents. Conclusions We identified errors and permissible heterogeneity in C-CDA documents that will limit semantic interoperability. Our findings also point to several practical opportunities to improve C-CDA document quality and exchange in the coming years. PMID:24970839

D'Amore, John D; Mandel, Joshua C; Kreda, David A; Swain, Ashley; Koromia, George A; Sundareswaran, Sumesh; Alschuler, Liora; Dolin, Robert H; Mandl, Kenneth D; Kohane, Isaac S; Ramoni, Rachel B

2014-01-01

156

Imaging informatics for consumer health: towards a radiology patient portal  

PubMed Central

Objective With the increased routine use of advanced imaging in clinical diagnosis and treatment, it has become imperative to provide patients with a means to view and understand their imaging studies. We illustrate the feasibility of a patient portal that automatically structures and integrates radiology reports with corresponding imaging studies according to several information orientations tailored for the layperson. Methods The imaging patient portal is composed of an image processing module for the creation of a timeline that illustrates the progression of disease, a natural language processing module to extract salient concepts from radiology reports (73% accuracy, F1 score of 0.67), and an interactive user interface navigable by an imaging findings list. The portal was developed as a Java-based web application and is demonstrated for patients with brain cancer. Results and discussion The system was exhibited at an international radiology conference to solicit feedback from a diverse group of healthcare professionals. There was wide support for educating patients about their imaging studies, and an appreciation for the informatics tools used to simplify images and reports for consumer interpretation. Primary concerns included the possibility of patients misunderstanding their results, as well as worries regarding accidental improper disclosure of medical information. Conclusions Radiologic imaging composes a significant amount of the evidence used to make diagnostic and treatment decisions, yet there are few tools for explaining this information to patients. The proposed radiology patient portal provides a framework for organizing radiologic results into several information orientations to support patient education. PMID:23739614

Arnold, Corey W; McNamara, Mary; El-Saden, Suzie; Chen, Shawn; Taira, Ricky K; Bui, Alex A T

2013-01-01

157

Knowledge Portals: Components, Functionalities, and Deployment Challenges  

E-print Network

Knowledge Portals: Components, Functionalities, and Deployment Challenges Claudia Loebbecke University of Cologne Kevin Crowston Syracuse University School of Information Studies Abstract Knowledge Portals (KPs) are highly integrative Knowledge Management Systems (KMS) that promise to synthesize widely

Crowston, Kevin

158

The Higgs Portal Above Threshold  

E-print Network

The discovery of the Higgs boson opens the door to new physics interacting via the Higgs Portal, including motivated scenarios relating to baryogenesis, dark matter, and electroweak naturalness. We systematically explore the collider signatures of singlet scalars produced via the Higgs Portal at the 14 TeV LHC and a prospective 100 TeV hadron collider. We focus on the challenging regime where the scalars are too heavy to be produced in the decays of an on-shell Higgs boson, and instead are produced primarily via an off-shell Higgs. Assuming these scalars escape the detector, promising channels include missing energy in association with vector boson fusion, monojets, and top pairs. We forecast the sensitivity of searches in these channels at $\\sqrt{s} = 14$ & 100 TeV and compare collider reach to the motivated parameter space of singlet-assisted electroweak baryogenesis, Higgs Portal dark matter, and neutral naturalness.

Craig, Nathaniel; McCullough, Matthew; Thalapillil, Arun

2014-01-01

159

The Reusable Astronomy Portal (TRAP)  

NASA Astrophysics Data System (ADS)

The Reusable Astronomy Portal (TRAP) aims to provide a common platform for rapidly deploying Astronomy Archives to the web. TRAP is currently under development for both the VAO Data Discovery Portal and the MAST Multi-Mission Portal (Figure 1). TRAP consists of 2 major software packages: the TRAP Client and the TRAP Server. The TRAP framework allows developers to deploy the Server, connect to data resources, then focus on building custom tools for the Client. TRAP is built upon proven industry technologies including the Ext/JS JavaScript Component Library, Mono.NET Web Services, and JSON message based APIs. The multi-layered architecture of TRAP decouples each layer: Client, Service and Data Access, enabling each to evolve independently over time. Although currently deployed to provide astronomy science data access, the TRAP architecture is flexible enough to thrive in any distributed data environment.

Donaldson, T.; Rogers, A.; Wallace, G.

2012-09-01

160

The Paleontology Portal: An online resource meeting the needs a spectrum of learners  

Microsoft Academic Search

The Paleontology Portal website provides a central, interactive entry point to high-quality North American paleontology resources on the Internet for multiple audiences: the research community, government and industry, K-16 students, and the general public. The Portal successfully blends research and education, pulling together information with reviewed and annotated website links for a wide variety of informal learners. Using web-based technology

D. Lindberg; J. G. Scotchmoor

2005-01-01

161

Evaluating the quality of library portals  

Microsoft Academic Search

Purpose – To investigate ways of demonstrating how portal implementations positively alter user information retrieval behaviour. Design\\/methodology\\/approach – An opinion piece reflecting on existing evidence about the nature of portal implementations, which extrapolates trends in user behaviour on the basis of these reflections. Findings – Although portal technologies probably do offer a way for libraries to create information tools that

Nicholas Joint

2005-01-01

162

Telecommunications assessment for a Consumer Portal  

Microsoft Academic Search

A Consumer Portal provides a communications gateway between energy providers and consumers for energy service functions. The functions enabled by the consumer portal helps the utilities reduce costs through more efficient operation, secure revenue from additional services and defer costs to accommodate load growth. Examples of Portal applications include AMR, demand response, real time pricing, theft detection, remote disconnect, energy

M. McGranaghan; G. Gilchrist

2006-01-01

163

Duplex ultrasonography in portal vein thrombosis  

Microsoft Academic Search

Duplex ultrasonography (US) was performed in 23 patients with portal vein thrombosis. In 7 children and 16 adults, duplex US demonstrated intraluminal thrombi (4 cases), thrombus and periportal collaterals (2 cases), and cavernomatous transformation of the portal vein (17 cases). Real-time US is a suitable means of demonstrating the anatomy of the portal venous system; pulsed Doppler provided information on

Z. Harkányi; M. Temesi; G. Varga; V. Weszelits

1989-01-01

164

Preoperative portal vein embolization for hepatocellular carcinoma  

Microsoft Academic Search

As a countermeasure to portal tumor thrombi, which are a serious danger in liver cancer, we did portal vein embolization (PVE) during percutaneous transhepatic portography. Our 21 patients later underwent hepatic resection. After PVE, portal pressure increased and there was slight liver function damage, but this procedure was safer than transarterial embolization (TAE). We examined the pathologic specimens to view

Hiroaki Kinoshita; Katsuji Sakai; Kazuhiro Hirohashi; Sumito Igawa; Osamu Yamasaki; Shoji Kubo

1986-01-01

165

Using an Automated Data-driven, EHR-Embedded Program for Mailing FIT kits: Lessons from the STOP CRC Pilot Study  

PubMed Central

Background The Strategies and Opportunities to Stop Colorectal Cancer (STOP CRC) study is collaboration among two research institutions and health-systems partners. The main study, scheduled to begin in 2014, will assess effectiveness of an intervention program using electronic health record (EHR) clinical decision support (CDS) tools to improve rates of colorectal-cancer screening in federally qualified health centers (FQHCs). Very few studies, and no large studies, aimed at raising CRC screening rates have utilized an EHR-embedded system. Study design We piloted the use of an EHR-embedded real-time patient registry reporting tool in a pilot study undertaken prior to beginning our main CRC screening study. The pilot study goal was to assess feasibility and effectiveness of two clinic-based approaches to raising rates of colorectal cancer screening among selected patients aged 50–74 who were not up-to-date with colorectal-cancer screening guidelines. We used work sessions and qualitative interviews with clinic personnel to assess performance of the tool, as well as to identify specific elements of the tool’s functionality needing refinement. Results Two critical elements of the EHR tool allowed us to mail FIT kits efficiently to appropriate patients: (1) having a direct interface with the laboratory that processed the FITs, thus allowing for real-time updates to the registry; and (2) being able to place lab orders from a list of selected patients. We identified the following elements that needed refining: the use of Health Maintenance (EHR function for tracking screening eligibility and due dates incorporating STOP CRC inclusion and exclusion criteria), and the development of report templates for identifying patients eligible for each step. Conclusion We found that most elements of our EHR-embedded program worked well and that specific refinement may improve the accuracy of identifying patients at each step. Our findings can inform future efforts to build EHR-embedded CDS tools for preventive services.

Coronado, Gloria D.; Burdick, Tim; Petrik, Amanda; Kapka, Tanya; Retecki, Sally; Green, Beverly

2014-01-01

166

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

167

Cyburbia: the Urban Planning Portal  

NSDL National Science Digital Library

This portal site contains a selective directory of Internet resources relevant to planning and urbanism for urban planners and others interested in cities and the built environment. Cyburbia also includes information about mailing lists and newsgroups, and it hosts a very active bulletin board and image hosting gallery. It also includes a Planning Wiki with informative articles concerning planning issues and debates.

2007-04-11

168

PORTAL: The Portland-Vancouver  

E-print Network

­ Research projects PORTAL Background A B C Bottleneck Estimated Propagation Speed A ­ 25 mph B ­ 22 mph C class ­ Bumper-to-bumper length ­ Speed ­ Unique transponder numbers · 22 #12;ITS Class 9 Steer Axle

Bertini, Robert L.

169

MedEdPORTAL  

NSDL National Science Digital Library

The Association of American Medical Colleges has a website that is filled with free resources regarding medical and dental education. The goal of the website is to offer "peer-reviewed teaching resources such as tutorials, virtual patients, simulation cases, lab guides, videos, podcasts, assessment tools, etc." On the homepage, visitors will find Featured Collections, Partner Collections, and Featured Publications. At the bottom of each list is a link to "Browse all Collections" and "Browse all Publications". When browsing the publications, visitors can "Browse by Discipline" or by "Hot Topics". The collections are divided up by Collection and Content Area Organization. Both the collections and publications are very well cross-referenced, so despite the vast amount of information available on this site, finding what's needed is not as daunting as one might think. Visitors who are familiar with the rising importance of cultural competence education in the healthcare setting will be interested in the exercise, "The Cultural Self-Awareness Workshop", which is under the Featured Publications heading on the homepage. In the exercises' abstracts visitors can find the intended learner and faculty audience, lessons learned, and educational objectives.

2009-06-04

170

Medical practice today. What members have to say. Rising operating costs + declining reimbursement + EHR implementation = your top challenges.  

PubMed

We invited you to share your thoughts on the practice and career challenges that confront you today. You responded emphatically to our questionnaire, and two issues--maintaining physician compensation as reimbursement declines, and operating costs that are escalating faster than revenues--essentially tied for first place. The threat of further cuts in Medicare reimbursement makes these dilemmas even more acute. Another issue--implementing an electronic health record (EHR)--ranked third as a hot topic. See the poll data and read the comments and complaints, insights and observations in this special feature all about you and your profession. PMID:18702423

Pope, Christina; Margolis, James

2008-07-01

171

1. West portal of the mudshed abutting the west portal ...  

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

1. West portal of the mudshed abutting the west portal of Tunnel 5, view to the northwest, 135mm lens. The flat-roofed reinforced concrete mudsheds, rocksheds, and snowsheds are a common feature of the Natron Cutoff over the summit of the Cascades. With the railroad located on a sidehill bench cut into the precipitous slopes, the sheds protect the track from rock and mud slides, as well as from avalanches. With a solid wall on the uphill side and a series of columns on the downhill side, they form a gallery-like effect from within. This mudshed was built concurrent with the tunnel, in 1927. Though none of the mudsheds on the line are scheduled to be modified, this shed was documented as an integral element of Tunnel 5. - Southern Pacific Railroad Natron Cutoff, Tunnel 5, Milepost 545.2, McCredie Springs, Lane County, OR

172

An EHR prototype using structured ISO/EN 13606 documents to respond to identified clinical information needs of diabetes specialists: a controlled study on feasibility and impact.  

PubMed

Cross-institutional longitudinal Electronic Health Records (EHR), as introduced in Austria at the moment, increase the challenge of information overload of healthcare professionals. We developed an innovative cross-institutional EHR query prototype that offers extended query options, including searching for specific information items or sets of information items. The available query options were derived from a systematic analysis of information needs of diabetes specialists during patient encounters. The prototype operates in an IHE-XDS-based environment where ISO/EN 13606-structured documents are available. We conducted a controlled study with seven diabetes specialists to assess the feasibility and impact of this EHR query prototype on efficient retrieving of patient information to answer typical clinical questions. The controlled study showed that the specialists were quicker and more successful (measured in percentage of expected information items found) in finding patient information compared to the standard full-document search options. The participants also appreciated the extended query options. PMID:23304308

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

2012-01-01

173

FSW Secure Access Portal Faculty of Social and Behavioural Sciences  

E-print Network

1 FSW Secure Access Portal Faculty of Social and Behavioural Sciences FSW Secure Access Portal The FSW Secure Access Portal (short: Portal) provides safe access from outside to the Faculty working: portal.fsw.leidenuniv.nl Staff manual #12;2 When you see the message below please click the Install

Galis, Frietson

174

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.

175

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

176

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); Hannum, David W. (Albuquerque, NM); Conrad, Frank James (Russellville, SC)

1999-01-01

177

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

178

Z-portal dark matter  

E-print Network

We propose to generalize the extensions of the Standard Model where the $Z$ boson serves as a mediator between the Standard Model sector and the dark sector $\\chi$. We show that, like in the Higgs portal case, the combined constraints from the recent direct searches restrict severely the nature of the coupling of the dark matter to the $Z$ boson and set a limit $m_\\chi \\gtrsim 200$ GeV (except in a very narrow region around the $Z-$pole region). Using complementarity between spin dependent, spin independent and FERMI limits, we predict the nature of this coupling, more specifically the axial/vectorial ratio that respects a thermal dark matter coupled through a $Z$-portal while not being excluded by the current observations. We also show that the next generation of experiments of the type LZ or XENON1T will test Z-portal scenario for dark matter mass up to 2 TeV. The condition of a thermal dark matter naturally predicts the spin--dependent scattering cross section on the neutron to be $\\sigma^{SD}_{\\chi n} \\si...

Arcadi, Giorgio; Richard, Francois

2014-01-01

179

Access High Quality Imagery from the NOAA View Portal  

NASA Astrophysics Data System (ADS)

NOAA curates a vast treasure trove of environmental data, but one that is sometimes not easily accessed, especially for education, outreach, and media purposes. Traditional data portals in NOAA require extensive knowledge of the specific names of observation platforms, models, and analyses, along with nomenclature for variable outputs. A new website and web mapping service (WMS) from NOAA attempts to remedy such issues. The NOAA View data imagery portal provides a seamless entry point into data from across the agency: satellite, models, in-situ analysis, etc. The system provides the user with ability to browse, animate, and download high resolution (e.g., 4,000 x 2,000 pixel) imagery, Google Earth, and even proxy data files. The WMS architecture also allows the resources to be ingested into other software systems or applications.

Pisut, D.; Powell, A. M.; Loomis, T.; Goel, V.; Mills, B.; Cowan, D.

2013-12-01

180

The relationship of hemorrhoids to portal hypertension  

Microsoft Academic Search

Records of 188 patients with documented portal hypertension were reviewed to determine the incidence of hemorrhoids as well\\u000a as bleeding complications associated with this condition. The incidence of hemorrhoids among these patients was not increased\\u000a compared to the normal population. Six of the patients with portal hypertension did, however, bleed massively from hemorrhoids.\\u000a Elevated portal venous pressure is an important

Donald M. Jacobs; Melvin P. Bubrick; Gerald R. Onstad; Claude R. Hitchcock

1980-01-01

181

Portal hypertensive duodenal polyp: A case report  

PubMed Central

Abnormalities of gastric mucosa in patients with portal hypertension are well documented. Manifestations of portal hypertension in small bowel and colon are less common. Colonic polypoid lesions microscopically consisting of a normal mucosa, with dilatation of submucosal vessels, have been described. We here report the first case of portal hypertensive duodenal polyp, responsible for gastro-intestinal bleeding. Endoscopic treatment turned out to be successful. PMID:17457981

Zeitoun, Jean-David; Chryssostalis, Ariane; Terris, Benoit; Prat, Frederic; Gaudric, Marianne; Chaussade, Stanislas

2007-01-01

182

Application of the smart portal in transportation  

Microsoft Academic Search

Under a program sponsored by the Department of Energy, the Oak Ridge complex is developing a `Portal-of-the-Future', or `smart portal.' This is a security portal for vehicular traffic which is intended to quickly detect explosives, hidden passengers, etc. It uses several technologies, including microwaves, weigh-in-motion, digital image processing, and electroacoustic wavelet-based heartbeat detection. A novel component of particular interest is

Stephen W. Kercel; Vivian M. Baylor; William B. Dress; Tim W. Hickerson; W. Bruce Jatko; Leo E. Labaj; Jeffrey D. Muhs; Richard M. Pack

1997-01-01

183

Application of the smart portal in transportation  

Microsoft Academic Search

Under a program sponsored by the Department of Energy, the Oak Ridge complex is developed a ``Portal-of-the-Future``, or ``smart portal``. This is a security portal for vehicular traffic which is intended to quickly detect explosives, hidden passengers, etc. It uses several technologies, including microwaves, weigh-in-motion, digital image processing, and electroacoustic wavelet-based heartbeat detection. A novel component of particular interest is

S. W. Kercel; V. M. Baylor; W. B. Dress; T. W. Hickerson; W. B. Jatko; L. E. Labaj; J. D. Muhs; R. M. Pack

1996-01-01

184

Restriction of Drinking Water Abrogates Splanchnic Vasodilation and Portal Hypertension in Portal Vein-Ligated Rats  

Microsoft Academic Search

Portal hypertension is associated with splanchnic vasodilation which is claimed responsible for the maintenance of chronically elevated portal pressure. Vasopressin analogues are used in the treatment of acute variceal bleeding, since they effectively reduce splanchnic blood flow and portal pressure. Dehydration stimulates the release of endogenous vasopressin release. Here we compared the effects of deprivation of drinking water for 18

Akos Heinemann; Rufina Schuligoi; Irmgard T. Lippe; Rudolf E. Stauber

2009-01-01

185

Abdominal tuberculosis—A cause of portal vein thrombosis and portal hypertension  

Microsoft Academic Search

Abdominal tuberculosis is a rare cause of portal hypertension and obstructive jaundice. We present two cases of tuberculosis with associated portal hypertension: one with segmental splenic vein occlusion caused by tuberculous lymph nodes and another with focal tuberculosis of the pancreas, causing obstructive jaundice and associated thrombosis of the portal and splenic veins. The aetiology, pathophysiology, diagnosis and management of

D. Ruttenberg; S. Graham; D. Burns; D. Solomon; P. Bornman

1991-01-01

186

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

187

Hepatic arterial resistance in cirrhosis with and without portal vein thrombosis: Relationships with portal hemodynamics  

Microsoft Academic Search

Background\\/Aims: Little information is available on hepatic arterial hemodynamics in cirrhosis because of the invasiveness of methods. Hepatic arterial resistance indexes were evaluated noninvasively by Doppler ultrasonography and were correlated with portal hemodynamics evaluated both noninvasively and invasively. Methods: Hepatic arterial resistance indexes, portal blood flow velocity and volume, and portal vein congestion index were evaluated in 31 controls and

David Sacerdoti; Carlo Merkel; Massimo Bolognesi; Piero Amodio; Paolo Angeli; Angelo Gatta

1995-01-01

188

Portal thrombosis: dynamic CT features and course  

SciTech Connect

Portal thrombosis was diagnosed on computed tomography (CT) in 10 patients and confirmed by sonography. CT demonstrated decreased density of the portal vessels in 9 patients with peripheral arterial concentration of contrast material surrounding the intraluminal thrombus. The involved vessels were generally enlarged. Three patients had follow-up scans, which revealed a cavernoma in 2 and complete patency of the portal vein and its branches following anticoagulant therapy in 1. In the latter patient, localized abnormal intrahepatic blood flow suggested infarction of portal origin as the result of clot migration.

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

1985-03-01

189

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. PMID:22764308

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

2012-01-01

190

Decade of Achievement - Educational Leadership in Mathematics, Science and Engineering  

NSF Publications Database

Title : NSF 92-94 - Decade of Achievement - Educational Leadership in Mathematics, Science and Engineering Type : Report NSF Org: EHR Date : August 11, 1992 File : nsf9294 Decade of Achievement Educational Leadership in Mathematics, Science and Engineering National Science Foundation Directorate for Education and Human Resources National Science Foundation Act of 1950 The National Science Foundation was established by Congress in 1950 "to initiate and support basic scientific research and ...

191

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. PMID:24604941

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

2013-01-01

192

Astronomia.pl Portal as a Partner for Projects Aimed at Students or Public  

NASA Astrophysics Data System (ADS)

There are quite many educational astronomical projects. To reach their target audience they need a proper way of communication, including suitable media. The role of Internet media continually increases and one of the elements of communication should be astronomical portal visited by teachers and students. Astronomia.pl portal participate or support (more or less formally) different projects and actions undertaken to educate or communicate astronomy. Several examples of such projects are Become a Young Copernicus, Kids on the Moon, Faulkes Telescope, Hands On Universe or events like Globe at Night and Catch a Star. The portal also organizes its own actions, like quizes for students. An address of our main website is www.astronomia.pl, English version: www.astronomia.pl/english.

Czart, K.; Pomierny, J.

2006-08-01

193

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

194

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.

195

Adaptive portal framework for Semantic Web applications  

Microsoft Academic Search

In this paper we propose a framework for the creation of adaptive portal solutions for the Semantic Web. It supports difierent target domains in a single portal instance. We propose a platform envi- ronment where the ontology models and adaptivity are among flrst-class features. Adaptivity is supported by the personalized presentation layer that integrates software tools for automatic user characteristic

Michal Barla; Peter Bartalos; Mária Bieliková; Roman Filkorn; Michal Tvarozek

2007-01-01

196

Getting Portals to Behave Chris Olston  

E-print Network

graphical representations si- multaneously, in a nested fashion. This makes portals an extremely powerful and analyze their data by permitting interactive brows- ing of graphical representations of the data of portal behaviors and give recommendations to help designers of visualization systems decide which

197

Portosystemic shunting for paediatric portal hypertension  

Microsoft Academic Search

The records of 22 patients who received portosystemic shunting for portal hypertension from 1985 to 1995 inclusive at the Royal Alexandra Hospital for Children (RAHC) were retrospectively reviewed. There were 11 girls and 11 boys. The average age at operation was 8 years, 3 months (range, 2 years, 3 months to 16 years, 7 months). The aetiology was idiopathic portal

A Shun; D. P Delaney; H. C. O Martin; G. M Henry; M Stephen

1997-01-01

198

Complications of cirrhosis. I. Portal hypertension  

Microsoft Academic Search

Increased resistance to portal blood flow is the primary factor in the pathophysiology of portal hypertension, and is mainly determined by the morphological changes occurring in chronic liver diseases. This is aggravated by a dynamic component, due to the active — reversible — contraction of different elements of the porto-hepatic bed. A decreased synthesis of NO in the intrahepatic circulation

Jaime Bosch; Juan Carlos García-Pagán

2000-01-01

199

Portal cavernoma in congenital hepatic fibrosis  

Microsoft Academic Search

A retrospective pediatric study of 30 angiograms in congenital hepatic fibrosis (CHF) was undertaken to analyze the different aspects of the portal venous system in this disease. Besides the classical angiographic signs (hepatofugal veins and intrahepatic duplications), a hepatopetal venous network was present in ten children, contrasting with the patency of the portal venous system. Analysis of the medical charts

M. Besnard; D. Pariente; M. Hadchouel; O. Bernard; P. Chaumont

1994-01-01

200

Cholestasis as presenting symptom of portal cavernoma  

Microsoft Academic Search

A 51-year-old man with a history of portal vein thrombosis, was examined because of elevated liver tests and a tumoral mass in the liver hilus. Computed tomography (CT) scan and magnetic resonance imaging confirmed the portal vein thrombosis and an infiltrating mass in the porta hepatis with compression on the common bile duct. Endoscopic retrograde cholangiography showed an irregular narrowing

Isabelle Colle; Hans Van Vlierberghe; Piet Pattyn; Roberto Troisi; Dirk Vogelaers; Bernard de Hemptinne; Martine De Vos

2003-01-01

201

The Portal to the Universe an IYA2009 Cornerstone Project  

NASA Astrophysics Data System (ADS)

The science of astronomy is extremely fast moving, and delivers new results on a daily basis, often in the form of spectacular news, images of forms and shapes not seen anywhere else, enhanced by illustrations and animations. Public astronomy communication has to develop apace with the other players in the mass market for electronic information such as the gaming and entertainment industries. The problem today is not so much the availability of excellent astronomy multimedia resources for use in education, outreach and the like, but rather finding and accessing these materials. The Portal to the Universe (TPTTU) seeks to fix this problem. The Portal to the Universe (TPTTU) is an IYA2009 Cornerstone project that will feature a comprehensive directory of observatories, facilities, astronomical societies, amateur astronomy societies, space artists, science communication universities, as well as news-, image-, event- and video- aggregators and Web 2.0 collaborative tools for astronomy multimedia community interaction. The Portal will enable innovative access to, and vastly multiply the use of, astronomy multimedia resources - including news, images, videos, events, podcasts, vodcasts etc. as a selective aggregator with a non-painful editorial mechanism in place. This talk will discuss the plans for the TPTTU content as well as the technology and editorial choices behind the scenes.

Lindberg Christensen, Lars; Gay, P.; IYA2009 TPTTU Cornerstone Task Group

2008-05-01

202

The LCOGT Observation Portal, Data Pipeline and Science Archive  

NASA Astrophysics Data System (ADS)

Las Cumbres Observatory Global Telescope (LCOGT) is building and deploying a world-wide network of optical telescopes dedicated to time-domain astronomy. During 2012-2013, we successfully deployed and commissioned nine new 1m telescopes at McDonald Observatory (Texas), CTIO (Chile), SAAO (South Africa) and Siding Spring Observatory (Australia). New, improved cameras and additional telescopes will be deployed during 2014. To enable the diverse LCOGT user community of scientific and educational users to request observations on the LCOGT Network and to see their progress and get access to their data, we have developed an Observation Portal system. This Observation Portal integrates proposal submission and observation requests with seamless access to the data products from the data pipelines in near-realtime and long-term products from the Science Archive. We describe the LCOGT Observation Portal and the data pipeline, currently in operation, which makes use of the ORAC-DR automated recipe-based data reduction pipeline and illustrate some of the new data products. We also present the LCOGT Science Archive, which is being developed in partnership with the Infrared Processing and Analysis Center (IPAC) and show some of the new features the Science Archive provides.

Lister, Tim; LCOGT Science Archive Team

2014-01-01

203

Evaluating alert fatigue over time to EHR-based clinical trial alerts: findings from a randomized controlled study  

PubMed Central

Objective Inadequate participant recruitment is a major problem facing clinical research. Recent studies have demonstrated that electronic health record (EHR)-based, point-of-care, clinical trial alerts (CTA) can improve participant recruitment to certain clinical research studies. Despite their promise, much remains to be learned about the use of CTAs. Our objective was to study whether repeated exposure to such alerts leads to declining user responsiveness and to characterize its extent if present to better inform future CTA deployments. Methods During a 36-week study period, we systematically documented the response patterns of 178 physician users randomized to receive CTAs for an ongoing clinical trial. Data were collected on: (1) response rates to the CTA; and (2) referral rates per physician, per time unit. Variables of interest were offset by the log of the total number of alerts received by that physician during that time period, in a Poisson regression. Results Response rates demonstrated a significant downward trend across time, with response rates decreasing by 2.7% for each advancing time period, significantly different from zero (flat) (p<0.0001). Even after 36?weeks, response rates remained in the 30%–40% range. Subgroup analyses revealed differences between community-based versus university-based physicians (p=0.0489). Discussion CTA responsiveness declined gradually over prolonged exposure, although it remained reasonably high even after 36?weeks of exposure. There were also notable differences between community-based versus university-based users. Conclusions These findings add to the limited literature on this form of EHR-based alert fatigue and should help inform future tailoring, deployment, and further study of CTAs. PMID:22534081

Leonard, Anthony C

2012-01-01

204

FSW Secure Access Portal Faculteit der Sociale Wetenschappen  

E-print Network

1 FSW Secure Access Portal Faculteit der Sociale Wetenschappen Handleiding versie: 1 oktober 2009 FSW Secure Access Portal De FSW Secure Access Portal (kortweg Portal) biedt een veilige toegang tot de FSW werkomgeving van buiten de faculteit. Verschillende toepassingen zoals webmail en toegang tot uw P

Galis, Frietson

205

Histological-venographic correlates in portal hypertension.  

PubMed

Magnification hepatic wedge venography and manometry were evaluated in 40 patients with portal hypertension and in 6 normal individuals. Venography (alone or in combination with manometry) generally facilitated prediction of histology in cirrhosis, hepato-venular occlusive disease, periportal fibrosis, congenital hepatic fibrosis, and portal vein obstruction. The magnification wedge venograms demonstrated a number of histological features of cirrhosis that have not previously been described in vivo, including porto-hepatic vein shunts, micro- and macronodular regeneration, and obstructive changes which were more severe in hepatic than in portal veins. PMID:1153762

Bookstein, J J; Appelman, H D; Walter, J F; Foley, W D; Turcotte, J G; Lambert, M

1975-09-01

206

Outcome of patients with pre-existing portal vein thrombosis undergoing arterialization of the portal vein during liver transplantation  

Microsoft Academic Search

Arterialization of the portal vein is being propagated as a technical possibility in liver transplant recipients with pre-existing portal vein thrombosis. In our own small series, portal vein arterialization (PVA) was carried out in four patients undergoing orthotopic liver transplantation. In three of these cases, the portal vein was anastomosed to the aorta via an interposed iliac artery, and in

Rudolf Ott; Cathrin Böhner; Susanna Müller; Thomas Aigner; Michaela Bussenius-Kammerer; Suleyman Yedibela; Hermann Kissler; Werner Hohenberger; Thomas Reck; Volker Müller

2003-01-01

207

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

208

Hepatopetal collaterals after portal vein thrombosis following liver transplantation  

Microsoft Academic Search

Two liver transplant patients with hepatopetal collaterals after portal vein thrombosis are described. Angiographically, the\\u000a appearance is similar to cavernous transformation of the portal vein. The demonstration of hepatopetal collaterals is diagnosic\\u000a of portal vein occlusion from whatever cause. After portal vein occlusion, collaterals develop from preexisting periportal\\u000a vessels which undergo compensatory enlargement and reconstitute the intraheptic portal vessels. In

Albert B. Zajko; Klaus M. Bron

1986-01-01

209

Flaming portal vein as a new color Doppler sign of portal gas: report of two cases  

Microsoft Academic Search

Portal gas is relatively rare, and the majority of reported cases have shown it to have a close relation to bowel diseases.\\u000a At present, portal exploration usually begins with color Doppler sonography, and clinicians now possess a good understanding\\u000a of color Doppler findings of a wide spectrum of portal abnormalities. However, the color Doppler sign we present in this article

Hiroyasu Ijuin; Daigo Tokitoku; Yoshihiko Atsuchi; Tomohisa Kosaihira; Mio Nagamine; Kayoko Nozaki; Takeshi Arima; Tetsuya Takahama; Hideaki Ishida

2008-01-01

210

Portal biliopathy: a multitechnique imaging approach  

Microsoft Academic Search

Portal biliopathy (PB) is a disorder characterized by biliary ductal and gallbladder wall abnormalities seen in patients with\\u000a extrahepatic portal vein obstruction. These abnormalities consist mainly of bile duct compression and tethering, stenoses,\\u000a fibrotic strictures and dilatation of both extrahepatic and intrahepatic bile ducts, as well as gallbladder varices. In this\\u000a pictorial essay, we describe the imaging findings of PB,

Cecilia Besa; Juan Pablo Cruz; Alvaro Huete; Francisco Cruz

211

Exit dose measurements by portal film dosimetry.  

PubMed

Portal in vivo dosimetry is a very attractive tool for patient dose measurements because of the large amount of information that portal film systems can easily collect, once positioned at the exit surface of the patient. The first step in the verification of the reliability of portal films as in vivo dosimeters is the evaluation of the agreement between exit patient dose profiles and optical density profiles measured on the portal film. We checked the possibilities for exit dose measurements of a commercial portal film system (Film Kodak X-Omat V and Localization Kodak Cassette) verifying the agreement between relative exit doses (measured by ionization chamber and film dosimetry, calculated by our treatment planning system (Cadplan Dosetek)) and relative optical densities on portal films in cubic homogeneous and inhomogeneous, cylindrical and humanoid phantoms. In particular, a good agreement (mean difference in absolute value: 2%) between optical densities and calculated exit doses for the Rando phantom were found, once the optical densities values are corrected for an inverse square correction factor, taking into account the variation of the profile of the phantom. PMID:8127984

Fiorino, C; del Vecchio, A; Cattaneo, G M; Fusca, M; Longobardi, B; Signorotto, P; Calandrino, R

1993-12-01

212

Preprint de : Baron, G.-L., Drot-Delange, B., & Khaneboubi, M. (2011). Gender and ICT in education: wich role for textbook and portals? Results from an European project: PREDIL. In J. Garcia, M. Horsley, & S. Knudsen (d.), Local,  

E-print Network

Preprint de : Baron, G.-L., Drot-Delange, B., & Khaneboubi, M. (2011). Gender and ICT in education Compostela - Spain. IARTEM, Santiago de Compostela, 643-652. Gender and ICT in education : which Role of the curriculum (B2I, Brevet Informatique et Internet), ICT mainly appears, in lower secondary education

Paris-Sud XI, Université de

213

Regional blood flows by the microsphere method: reproducibility in portal hypertensive rats and influence of a portal vein catheter  

SciTech Connect

To determine the reproducibility of splanchnic blood flow measurements by the microsphere method in rats with portal hypertension and the effects of laparotomy with portal vein cannulation, eight groups of 10 rats were studied. Microspheres were labelled with /sup 113/Sn or /sup 141/Ce. Laparotomy with portal cannulation had no significant effect in sham-operated rats. In awake portal hypertensive rats, cardiac output and splanchnic blood flow were lower in portal vein cannulated rats compared with those of non-cannulated animals. In anesthetized portal hypertensive rats blood flows were unaffected by portal cannulation, but arterial pressure and heart rate were elevated. Anesthesia also decreased portal pressure in portal hypertensive rats. We conclude that the microsphere method remains reproducible in portal hypertensive rat models. Laparotomy with portal cannulation can alter systemic and splanchnic hemodynamics in portal hypertensive rats; these effects can also be changed during pentobarbital anesthesia. Regional blood flow measurements in portal hypertensive rats should be performed in animals without portal cannulation and preferably in the awake state.

Hadengue, A.; Lee, S.S.; Koshy, A.; Girod, C.; Lebrec, D.

1988-04-01

214

Unexpected disappearance of portal cavernoma on long-term anticoagulation.  

PubMed

Idiopathic non-cirrhotic portal hypertension is a rare disease of unknown etiology. Patients with idiopathic non-cirrhotic portal hypertension have an increased risk of developing portal vein thrombosis and this is especially prevalent when HIV is also present. We describe a unique case of a patient with idiopathic non-cirrhotic portal hypertension associated to HIV, who developed acute portal vein thrombosis that despite anticoagulation transformed in portal cavernoma and disappeared completely after five years of follow-up on continuous anticoagulation. PMID:24713187

Silva-Junior, Gilberto; Turon, Fanny; Hernandez-Gea, Virginia; Darnell, Anna; García-Criado, Ángeles; García-Pagán, Juan Carlos

2014-08-01

215

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

216

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.

217

The GB/3D Type Fossils Online Web Portal  

NASA Astrophysics Data System (ADS)

Fossils are the remains of once-living organisms that existed and played out their lives in 3-dimensional environments. The information content provided by a 3d representation of a fossil is much greater than that provided by a traditional photograph, and can grab the attention and imagination of the younger and older general public alike. The British Geological Survey has been leading a consortium of UK natural history museums including the Oxford University Museum of Natural History, the Sedgwick Museum Cambridge, the National Museum of Wales Cardiff, and a number of smaller regional British museums to construct a web portal giving access to metadata, high resolution images and interactive 3d models of type fossils from the UK. The web portal at www.3d-fossils.ac.uk was officially launched in August 2013. It can be used to discover metadata describing the provenance, taxonomy, and stratigraphy of the specimens. Zoom-able high resolution digital photographs are available, including for many specimens ';anaglyph' stereo images that can be viewed in 3d using red-cyan stereo spectacles. For many of the specimens interactive 3d models were generated by scanning with portable ';NextEngine 3D HD' 3d scanners. These models can be downloaded in zipped .OBJ and .PLY format from the web portal, or may be viewed and manipulated directly in certain web browsers. The images and scans may be freely downloaded subject to a Creative Commons Attribution ShareAlike Non-Commercial license. There is a simple application programming interface (API) allowing metadata to be downloaded, with links to the images and models, in a standardised format for use in data mash-ups and third party applications. The web portal also hosts ';open educational resources' explaining the process of fossilization and the importance of type specimens in taxonomy, as well as providing introductions to the most important fossil groups. We have experimented with using a 3d printer to create replicas of the fossils which can be used in education and public outreach. The audience for the web portal includes both professional paleontologists and the general public. The professional paleontologist can use the portal to discover the whereabouts of the type material for a taxon they are studying, and can use the pictures and 3d models to assess the completeness and preservation quality of the material. This may reduce or negate the need to send specimens (which are often fragile and always irreplaceable) to researchers through the post, or for researchers to make possibly long, expensive and environmentally damaging journeys to visit far-off collections. We hope that the pictures and 3d models will help to stimulate public interest in paleontology and natural history. The ability to digitally image and scan specimens in 3d enables institutions to have an archive record in case specimens are lost or destroyed by accident or warfare. Recent events in Cairo and Baghdad remind us that museum collections are vulnerable to civil and military strife.

McCormick, T.; Howe, M. P.

2013-12-01

218

Metabolic effects of portal vein sensing.  

PubMed

The extrinsic gastrointestinal nerves are crucial in the sensing of nutrients and hormones and its translation in terms of control of food intake. Major macronutrients like glucose and protein are sensed by the extrinsic nerves located in the portal vein walls, which signal to the brain and account for the satiety phenomenon they promote. Glucose is sensed in the portal vein by neurons expressing the glucose receptor SGLT3, which activate the main regions of the brain involved in the control of food intake. Proteins indirectly act on food intake by inducing intestinal gluconeogenesis and its sensing by the portal glucose sensor. The mechanism involves a prior antagonism by peptides of the ?-opioid receptors present in the portal vein nervous system and a reflex arc with the brain inducing intestinal gluconeogenesis. In a comparable manner, short-chain fatty acids produced from soluble fibre act via intestinal gluconeogenesis to exert anti-obesity and anti-diabetic effects. In the case of propionate, the mechanism involves a prior activation of the free fatty acid receptor FFAR3 present in the portal nerves and a reflex arc initiating intestinal gluconeogenesis. PMID:25200297

Mithieux, G

2014-09-01

219

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

220

The Double-Dark Portal  

E-print Network

In most models of the dark sector, dark matter is charged under some new symmetry to make it stable. We explore the possibility that not just dark matter, but also the force carrier connecting it to the visible sector is charged under this symmetry. This dark mediator then acts as a Double-Dark Portal. We realize this setup in the \\emph{dark mediator Dark matter} model (dmDM), featuring a fermionic DM candidate $\\chi$ with Yukawa couplings to light scalars $\\phi_i$. The scalars couple to SM quarks via the operator $\\bar q q \\phi_i^* \\phi_j/\\Lambda_{ij}$. This can lead to large direct detection signals via the $2\\rightarrow3$ process $\\chi N \\rightarrow \\chi N \\phi$ if one of the scalars has mass $ \\lesssim 10\\, \\rm{keV}$. For dark matter Yukawa couplings $y_\\chi \\sim 10^{-3} - 10^{-2}$, dmDM features a thermal relic dark matter candidate while also implementing the SIDM scenario for ameliorating inconsistencies between dwarf galaxy simulations and observations. We undertake the first systematic survey of constraints on light scalars coupled to the SM via the above operator. The strongest bounds are derived from LHC experiments, cosmological considerations, and stellar astrophysics. Observations of neutron star cooling exclude the minimal model with one dark mediator, but a scenario with two dark mediators remains viable and can give strong direct detection signals. We explore the direct detection consequences of this scenario and find that a heavy $\\mathcal{O}(100 \\,\\rm{GeV})$ dmDM candidate fakes different $\\mathcal{O}(10 \\,\\rm{GeV})$ WIMPs at different experiments. Large regions of dmDM parameter space are accessible above the irreducible neutrino background.

David Curtin; Yuhsin Tsai

2014-05-05

221

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

222

Portal venous pressure following splenectomy in patients with portal hypertension of differing etiology.  

PubMed

To clarify the effect of splenomegaly on portal hemodynamics in patients with portal hypertension and esophageal varices, manometric studies were carried out before and after splenectomy during an operation for esophageal varices. The 118 patients evaluated retrospectively had underlying liver cirrhosis (LC) (62), idiopathic portal hypertension (IPH) (42), and extrahepatic portal occlusion (EHO) (14). The weight of the spleen did not differ significantly among the three diagnostic groups: 640 +/- 473.5 g for LC, 780 +/- 414.6 g for IPH, and 683 +/- 457.2 g for EHO. Before splenectomy, portal pressure was significantly elevated in the patients with EHO (410 +/- 85.2 mm H2O) as compared to either the LC or IPH groups (348 +/- 64.1 and 348 +/- 73.5 mm H2O). Following splenectomy the reduction of portal pressure was significantly greater in the EHO group (29 +/- 15.5%) than in either the LC (18 +/- 17.4%) or IPH (19 +/- 17.0%) groups. Each group was subdivided according to severity of splenomegaly: marked (spleen weight > or = 500 g) or slight (spleen weight < 500 g). Patients with LC and marked splenomegaly showed a reduction in liver function parameters as shown by the prolongation of indocyanine retention rate at 15 min as compared to those with slight splenomegaly. Though it is not statistically significant, the average portal pressure tended to be higher among those with marked splenomegaly.(ABSTRACT TRUNCATED AT 250 WORDS) PMID:1292940

Matsubara, S; Ouchi, K; Matsuno, S

1992-01-01

223

Portal hypertensive biliopathy: a rare cause of childhood cholestasis  

Microsoft Academic Search

Portal hypertensive biliopathy (PHB) is defined as abnormal biliary changes that take place most likely secondary to extrahepatic\\u000a portal vein obstruction (EHPVO) with portal hypertension. This condition may be asymptomatic or could lead to a cholestatic\\u000a state, which is not well-described in children. We report a child who developed a cholestatic nature with portal hypertension\\u000a some time after having neonatal

Wael El-Matary; Eve A. Roberts; Peter Kim; Michael Temple; Ernest Cutz; Simon C. Ling

2008-01-01

224

Application of the smart portal in transportation  

SciTech Connect

Under a program sponsored by the Department of Energy, the Oak Ridge complex is developed a ``Portal-of-the-Future``, or ``smart portal``. This is a security portal for vehicular traffic which is intended to quickly detect explosives, hidden passengers, etc. It uses several technologies, including microwaves, weigh-in-motion, digital image processing, and electroacoustic wavelet-based heartbeat detection. A novel component of particular interest is the Enclosed Space Detection System (ESDS), which detects the presence of persons hiding in a vehicle. The system operates by detecting the presence of a human ballistocardiographic signature. Each time the heart beats, it generates a small but measurable shock wave that propagates through the body. The wave, whose graph is called a ballistocardiogram, is the mechanical analog of the electrocardiogram, which is routinely used for medical diagnosis. The wave is, in turn, coupled to any surface or object with which the body is in contact. If the body is located in an enclosed space, this will result in a measurable deflection of the surface of the enclosure. Independent testing has shown ESDS to be highly reliable. The technologies used in the smart portal operate in real time and allow vehicles to be checked through the portal in much less time than would be required for human inspection. Although not originally developed for commercial transportation, the smart portal has the potential to solve several transportation problems. It could relieve congestion at international highway border crossings by reducing the time required to inspect each vehicle while increasing the level of security. It can reduce highway congestion at the entrance of secure facilities such as prisons. Also, it could provide security at intermodal transfer points, such as airport parking lots and car ferry terminals.

Kercel, S.W.; Baylor, V.M.; Dress, W.B.; Hickerson, T.W.; Jatko, W.B.; Labaj, L.E.; Muhs, J.D.; Pack, R.M.

1996-12-31

225

Application of the smart portal in transportation  

NASA Astrophysics Data System (ADS)

Under a program sponsored by the Department of Energy, the Oak Ridge complex is developing a `Portal-of-the-Future', or `smart portal.' This is a security portal for vehicular traffic which is intended to quickly detect explosives, hidden passengers, etc. It uses several technologies, including microwaves, weigh-in-motion, digital image processing, and electroacoustic wavelet-based heartbeat detection. A novel component of particular interest is the Enclosed Space Detection System (ESDS), which detects the presence of persons hiding in a vehicle. The system operates by detecting the presence of a human ballistocardiographic signature. Each time the heart beats, it generates a small but measurable shock wave that propagates through the body. The wave, whose graph is called a ballistocardiogram, is the mechanical analog of the electrocardiograms, which is routinely used for medical diagnosis. The wave is, in turn, coupled to any surface or object with which the body is in contact. If the body is located in an enclosed space, this will result in a measurable deflection of the surface of the enclosure. Independent testing has shown ESDS to be highly reliable. The technologies used in the smart portal operate in real time and allow vehicles to be checked through the portal in much less time than would be required for human inspection. Although not originally developed for commercial transportation, the smart portal has the potential to solve several transportation problems. It could relieve congestion at international highway border crossings by reducing the time required to inspect each vehicle while increasing the level of security. It can reduce highway congestion at the entrance of secure facilities such as prisons. Also, it could provide security at intermodal transfer points, such as airport parking lots and car ferry terminals.

Kercel, Stephen W.; Baylor, Vivian M.; Dress, William B.; Hickerson, Tim W.; Jatko, W. Bruce; Labaj, Leo E.; Muhs, Jeffrey D.; Pack, Richard M.

1997-02-01

226

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

227

The Monash Portal: More Than Just a Virtual Gateway.  

ERIC Educational Resources Information Center

The My Monash Portal (Portal) at Monash University (Australia) provides a virtual gateway to support student-centered flexible learning by coordinating several of the university's key resources to meet the needs of students and staff. The Portal is intended to help deliver innovative learning programs, foster opportunities to undertake research,…

Kennedy, David; Webster, Len; Benson, Robyn; James, Di; Bailey, Nathan

228

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

229

THE CIAO: WEB PORTAL OF GEOGRAPHIC INFORMATION FOR WEST AFRICA  

E-print Network

THE CIAO: WEB PORTAL OF GEOGRAPHIC INFORMATION FOR WEST AFRICA GEORIS CREUSEVEAU, J.1, GOURMELON, F and Marine Area of West Africa). It leads to a web portal of information for the West African coastal zone, GEOGRAPHICAL INFORMATION, METADATA, WEB PORTAL, WEST AFRICA INTRODUCTION The West African coastal region

Paris-Sud XI, Université de

230

The GFDL Data Portal: a Doorway to Sharing Model Outputs  

Microsoft Academic Search

In response to increasing community interest in the output of models run at GFDL, we have embarked upon the design of a data portal for sharing numerical model output. Effective sharing of model output requires software standards and tools and then utilizing those tools to build data portals. Among the tools that the GFDL data portal will utilize is the

K. M. Obrien; S. Hankin; J. Callahan; V. Balaji; R. Schweitzer; J. McLean; Y. Wei; A. Manke

2004-01-01

231

Pulsed Doppler duplex sonography and CT of portal vein thrombosis  

Microsoft Academic Search

Five patients with partial or complete portal vein thrombosis were examined by both computed tomography (CT) and pulsed Doppler duplex scanning. Duplex scanning correctly identified portal vein thrombosis in all five. Duplex sonography may be the preferred technique to detect and follow portal vein thrombosis because of lower cost, lack of need for intravenous contrast material, and easier availability for

Valerie E. Miller; Lincoln L. Berland

1985-01-01

232

Idiopathic portal hypertension (perisinusoidal fibrosis) after renal transplantation  

Microsoft Academic Search

We report the cases of two renal transplant recipients suffering from idopathic portal hypertension, a condition characterised by increased portal venous pressure in the absence of both histological lesion of the liver and obstruction of the portal vein. In these two patients, perisnusoidal fibrosis, invisible by light microscopy, was demonstrated by electron microscopy; it is suggested that partial obstruction of

C Nataf; G Feldmann; D Lebrec; C Degott; J M Descamps; B Rueff; J P Benhamou

1979-01-01

233

Web Services Based Architecture in Computational Web Portals  

E-print Network

Web Services Based Architecture in Computational Web Portals By Choonhan Youn B.S. The University___________________________________ #12;Abstract Computational web portals provide user environments that simplify access and integrate. The computational web portal, Gateway, consists of a dynamically generated and browser-based user interface

234

A personalized semantic portal for enhanced user support  

Microsoft Academic Search

Although many advances have been made in semantic portal research, often links to relevant pages are not shown and the same content\\/links are presented to users that have different background and interests. This paper introduces a novel semantic portal, SEMPort, to support the browsing of users based on personalization and enriched semantic hyperlinks. Our semantic portal makes a novel contribution

M. ?ah; W. Hall

2012-01-01

235

Pathophysiology of Portal Hypertension and Esophageal Varices  

PubMed Central

Esophageal varices are the major complication of portal hypertension. It is detected in about 50% of cirrhosis patients, and approximately 5–15% of cirrhosis patients show newly formed varices or worsening of varices each year. The major therapeutic strategy of esophageal varices consists of primary prevention, treatment for bleeding varices, and secondary prevention, which are provided by pharmacological, endoscopic, interventional and surgical treatments. Optimal management of esophageal varices requires a clear understanding of the pathophysiology and natural history. In this paper, we outline the current knowledge and future prospect in the pathophysiology of esophageal varices and portal hypertension. PMID:22666604

Maruyama, Hitoshi; Yokosuka, Osamu

2012-01-01

236

Course registration in My studies (Student portal) Some departments use web registration in the My studies (Student portal), for their  

E-print Network

Course registration in My studies (Student portal) Some departments use web registration in the My studies (Student portal), for their courses. If that is the case for a course you are admitted to which web registration is open for that course. To be able to sign in to My studies (Student portal

237

Innovating and Evaluating Science Education: NSF Evaluation Forums, 1992-94  

NSF Publications Database

13 Appendix DEFINITIONS OF EHR PROGRAM EVALUATIONS March 1994 According to the Expert Panel for the Review of Federal Education Programs in Science, Mathematics, Engineering, and Technology (Sourcebook, August 1993, pp. 61-62), there are two categories of program review suggested for core science education programs in Federal agencies?one makes judgments of program merit and can be called program evaluation; the other collects and reviews descriptive statistics about programs and is referred ...

238

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

239

Portal hypertension as portrayed by marked hepatosplenomegaly: case report  

SciTech Connect

The liver is vulnerable to as host of disease processes, including portal hypertension. This is a severe hepatic condition in which the liver is subject to numerous imbalances: increased hepatic blood flow, increased portal vein pressure due to extrahepatic portal vein obstruction, and/or increases in hepatic blood flow resistance. Although many diseases states may be responsible for the development of portal hypertension, it is most commonly associated with moderately severe or advanced cirrhosis. Advanced, untreated portal hypertension may cause additional complications such as hepatosplenomegaly, gastrointestinal bleeding, and ascites.

Greene, R.A.

1987-12-01

240

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. PMID:24574774

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

2014-01-01

241

iSUPPLIER PORTAL ACCESS SYSTEM REQUIREMENTS  

E-print Network

is used is dependent on how you are accessing your site (Internet or Local Intranet) and set up within OF CONTENTS Recommended Browsers for iSupplier Portal Recommended Microsoft Internet Explorer Browser Settings VISTA & WINDOWS VISTA SP1 MAC OS X V10.3.9 MAC OS X V10.4.7 OR HIGHER Microsoft Internet Explorer 6

242

Portal vein embolization before major hepatectomy  

Microsoft Academic Search

Abstract Abstract Abstract Abstract To discuss the rationale, techniques and the unsolved issues regarding preoperative portal vein embolization (PVE) before major hepatectomy. After a systematic search of Pubmed, we reviewed and retrieved literature related to PVE. Preoperative PVE is an approach that is gaining increasing acceptance in the preoperative treatment of selected patients prior to major hepatic resection. Induction of

Hai Liu; Yong Fu

243

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

244

A neutron portal monitor for vehicles  

SciTech Connect

We have designed and built a portal vehicle monitoring systems for detecting neutron-emitting special nuclear material (SNM) such as plutonium. Monte Carlo calculations were used to optimize the design of the 15-cm-deep x 122-cm-high x 244-cm-long detector chambers, which utilize /sup 3/He proportional counters inside a hollow polyethylene box. Results for a variety of parametric studies, including polyethylene thickness and detector number, are described. Our experimental measurements are in good agreement with the computer calculations. The monitor's decision logic uses the Sequential Probability Ratio Test (SPRT) on Poisson distributed counting data, which is superior to other statistical tests in many applications. We performed computer simulations of the SPRT logic to determine expected false-positive decision rates. A controller unit of our design that uses this SPRT was built commercially. The cost of the complete monitoring system is similar to that of vehicle portal monitors that detect gamma rays. This new neutron monitor can serve as an addition to standard gamma-ray vehicle portals or as a stand-alone portal monitor in particular safeguards monitoring situations. The monitor is being tested at Los Alamos and is scheduled for in-plant evaluation of another DOE facility in 1987. 7 refs.

Coop, K.L.; Fehlau, P.E.; Atwater, H.F.

1987-07-12

245

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

246

Semantic Portals for Cultural Heritage Eero Hyvonen  

E-print Network

, history, handicraft, etc.), is written in different languages, is targeted to both lay- men and experts viewpoint, too: · Distributed content creation. Portal content is usually created in a centralized fashion in a distributed fashion by independent pub- lishers, e.g, by different of museums and other memory organizations

Hyvönen, Eero

247

Semantic Portals for Cultural Heritage Eero Hyvonen  

E-print Network

, handicraft, etc.), is written in different languages, is targeted to both lay- men and experts content creation. Portal content is usually created in a centralized fashion by using a content management system (CMS). This approach is costly and not feasible if content is created in a distributed fashion

Hyvönen, Eero

248

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

249

TUFTS UNIVERSITY PORTAL (NON-ADMINISTRATIVE)  

E-print Network

TUFTS UNIVERSITY PORTAL (NON-ADMINISTRATIVE) iSIS SECURITY ACCESS REQUEST FORM Last Name First Middle Date of birth (mm/dd/yyyy) Email: UTLN School: Tufts ID# Department Director Department Administrator TA/RA Department Chair Tufts Affiliate If Faculty, please indicate course

Dennett, Daniel

250

TUFTS UNIVERSITY PORTAL (NON-ADMINISTRATIVE)  

E-print Network

TUFTS UNIVERSITY PORTAL (NON-ADMINISTRATIVE) iSIS SECURITY ACCESS REQUEST FORM Last Name First Name Middle Initial Date of birth (mm/dd/yyyy) Email: UTLN School: Tufts ID Department: Campus Extension Check Faculty* Alpha Dean Tufts Affiliate* Dean *If applicable, please indicate course(s) you are teaching: Term

Dennett, Daniel

251

TUFTS UNIVERSITY PORTAL (NON-ADMINISTRATIVE)  

E-print Network

TUFTS UNIVERSITY PORTAL (NON-ADMINISTRATIVE) iSIS SECURITY ACCESS REQUEST FORM Last Name First Middle UTLN: Email: Tufts ID # School: Telephone Extension # Department: Academic Organization (if known by the Tufts University Information technology Responsible Use Policy (http://uit.tufts.edu/?pid=444

Dennett, Daniel

252

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. PMID:24868203

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

2014-01-01

253

Portal vein arterialization technique for liver transplantation patients  

PubMed Central

Liver transplantations were performed on two patients with hepatic failure caused by liver cirrhosis. Hard obsolete thrombi and portal venous sclerosis were observed in the major portal veins of both patients. The arteria colica media of one recipient and the portal vein of the donor were anastomosed end-to-end. The hepatic artery of the first donor was anastomosed end-to end with the gastroduodenal artery of the first recipient; meanwhile, the portal vein of the second donor was simultaneously anastomosed end- to-end with the common hepatic artery of the second recipient. The blood flow of the portal vein, the perfusion of the donor liver and liver function were satisfactory after surgery. Portal vein arterialization might be an effective treatment for patients whose portal vein reconstruction was difficult.

Zhang, Kun; Jiang, Yi; Lv, Li-Zhi; Cai, Qiu-Cheng; Yang, Fang; Hu, Huan-Zhang; Zhang, Xiao-Jin

2014-01-01

254

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

255

Go to the following link, which can only be accessed from the Berea College network http://ad-astra-web-vm/AstraProd/Portal/GuestPortal.aspx  

E-print Network

Go to the following link, which can only be accessed from the Berea College network http://ad-astra-web-vm/AstraProd/Portal/GuestPortal.aspx Or, out of network at http://ad-astra-web vm.berea.edu/AstraProd/Portal/GuestPortal.aspx You can also/buses are available: Go to the following link, which can only be accessed from the Berea College network http://ad-astra-web-vm/AstraProd/Portal/GuestPortal.aspx

Baltisberger, Jay H.

256

GIS For Teaching Resource Portal  

NSDL National Science Digital Library

This page showcases student projects and other resources that may be used for GIS education. Users may view the resources as a grid, or by selecting the list view, they may read a brief description of each resource. These learning activities and interactive tools cover topics such as sociology, emergency response, tectonic activity, economics, public health and more. These interdisciplinary resources demonstrate how different types of data may be displayed on a map.

2013-08-07

257

Primary laparoscopic cholecystectomy in patients with portal cavernoma and non-obstructive portal biliopathy: Two case reports.  

PubMed

A laparoscopic cholecystectomy can be technically challenging with co-existing portal hypertension, as commonly seen with cirrhosis of the liver. Extra hepatic portal vein obstruction (EHPVO) although less common, is a significant cause of portal hypertension in India. EHPVO has a unique clinical profile, which differentiates it from portal hypertension associated with cirrhosis of the liver. This impacts therapy in EHPVO algorithmically and operatively. We report two cases of symptomatic gall stones with portal cavernoma. Further evaluation revealed non-obstructive portal biliopathy. Both underwent a successful laparoscopic cholecystectomy. We highlight the importance of careful operative strategy, diligent haemostasis and the feasibility of performing a laparoscopic cholecystectomy in patients with symptomatic gall stones associated with a portal cavernoma. PMID:25013336

Bhatia, Parveen; John, Suviraj; Kalhan, Sudhir; Khetan, Mukund

2014-07-01

258

NanoEd Resource Portal  

NSDL National Science Digital Library

From the National Center for Learning and Teaching in Nanoscale Science and Engineering, this educational site focuses on teaching resources in nanotechnology for high school and undergraduate students. The site is divided by resource type; visitors will find simulations and demonstrations, courses, lessons, and outside resources for integrating and introducing nanoscience into the classroom. The topics here range from carbon nanotubes, to magnetic force microscopes, to electrodeposition. Faculty are also encouraged to participate their own teaching materials to the project, and can find out more information by following the Contribute to NanoEd link.

2012-04-12

259

Hepatectomy With Portal Vein Resection for Hilar Cholangiocarcinoma  

PubMed Central

Objective: To better determine the role of portal vein resection and its effect on survival, as well as to appreciate the impact of portal vein invasion on prognosis in hilar cholangiocarcinoma. Summary Background Data: Hepatectomy with portal vein resection is sometimes performed for locally advanced hilar cholangiocarcinoma. However, the significance of microscopic invasion of the portal vein has not been determined. Methods: Medical records of 160 patients with hilar cholangiocarcinoma who underwent macroscopically curative hepatectomy with (n = 52) or without portal vein resection (n = 108) were reviewed. Invasion of the portal vein was assessed histologically on the surgical specimen, and results were correlated with clinicopathologic features and survival. Results: Surgical mortality, including all hospital deaths, was similar in patients who did and did not undergo portal vein resection (9.6% vs. 9.3%), but the primary tumor was more advanced in patients who underwent portal vein resection. Histologically, no invasion was found in 16 (30.8%) of resected portal veins. However, dense fibrosis adjacent to the portal vein was common, and the mean distance between the leading edge of cancer cells and the adventitia of the portal vein was 437 ± 431 ?m. The prognosis was worse in patients with than without portal vein resection (5-year survival, 9.9% vs. 36.8%; P < 0.0001). The presence or absence of microscopic invasion of the resected portal vein did not influence survival (16.6 months in patients with microscopic invasion vs. 19.4 months in those without; P = 0.1506). Multivariate analysis identified histologic differentiation, lymph node metastasis, and macroscopic portal vein invasion as independent prognostic factors. Conclusions: Microscopic invasion of the portal vein may be misdiagnosed clinically in patients with hilar cholangiocarcinoma. However, the distance between tumor and adventitia is so narrow that curative resection without portal vein resection is unlikely to be possible. Gross portal vein invasion has a negative impact on survival, and hepatectomy with portal vein resection can offer long-term survival in some patients with advanced hilar cholangiocarcinoma. PMID:14578735

Ebata, Tomoki; Nagino, Masato; Kamiya, Junichi; Uesaka, Katsuhiko; Nagasaka, Tetsuro; Nimura, Yuji

2003-01-01

260

Phase contrast portal imaging using synchrotron radiation.  

PubMed

Microbeam radiation therapy is an experimental form of radiation treatment with great potential to improve the treatment of many types of cancer. We applied a synchrotron radiation phase contrast technique to portal imaging to improve targeting accuracy for microbeam radiation therapy in experiments using small animals. An X-ray imaging detector was installed 6.0 m downstream from an object to produce a high-contrast edge enhancement effect in propagation-based phase contrast imaging. Images of a mouse head sample were obtained using therapeutic white synchrotron radiation with a mean beam energy of 130 keV. Compared to conventional portal images, remarkably clear images of bones surrounding the cerebrum were acquired in an air environment for positioning brain lesions with respect to the skull structure without confusion with overlapping surface structures. PMID:25085143

Umetani, K; Kondoh, T

2014-07-01

261

Phase contrast portal imaging using synchrotron radiation  

NASA Astrophysics Data System (ADS)

Microbeam radiation therapy is an experimental form of radiation treatment with great potential to improve the treatment of many types of cancer. We applied a synchrotron radiation phase contrast technique to portal imaging to improve targeting accuracy for microbeam radiation therapy in experiments using small animals. An X-ray imaging detector was installed 6.0 m downstream from an object to produce a high-contrast edge enhancement effect in propagation-based phase contrast imaging. Images of a mouse head sample were obtained using therapeutic white synchrotron radiation with a mean beam energy of 130 keV. Compared to conventional portal images, remarkably clear images of bones surrounding the cerebrum were acquired in an air environment for positioning brain lesions with respect to the skull structure without confusion with overlapping surface structures.

Umetani, K.; Kondoh, T.

2014-07-01

262

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.

263

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

264

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

265

Idiopathic Non Cirrhotic Portal Hypertension and Spleno-Portal Axis Abnormalities in Patients with Severe Primary Antibody Deficiencies  

PubMed Central

Background and Aim. Portal hypertension has been reported in association with acquired and primary immune deficiencies without a comprehensive description of associated spleno-portal axis abnormalities. Pathological mechanisms are poorly defined. Methods. Observational, single centre study with the aim of assessing the prevalence of spleno-portal axis abnormalities in an unselected cohort of 123 patients with primary antibody deficiencies and without known causes of liver diseases regularly followed up for a mean time of 18 ± 14 years. A cumulative period of 1867 patients-year was analysed. Clinical and immunological data, abdominal ultrasounds, CT scans, and endoscopy features were included in the analysis. Results. Twenty-five percent of patients with primary antibody deficiencies had signs of portal vein enlargement but only 4% of them had portal hypertension, with portal systemic collaterals. Liver biopsies showed liver sinusoids congestive dilatation, endothelization, and micronodularity fulfilling the criteria for noncirrhotic portal hypertension. Patients with portal vein enlargement had severe clinical and immunological phenotypes. Conclusions. In primary antibody deficient patients, infections, inflammations, splenomegaly, increased blood venous flow, and lymphocyte abnormalities contribute to establishment of liver damage possibly leading to noncirrhotic portal hypertension. Patients with primary antibody deficiency should be considered a good model to give insight into the pathological mechanisms underlying noncirrhotic portal hypertension. PMID:24741616

Pulvirenti, Federica; Pentassuglio, Ilaria; Milito, Cinzia; Valente, Michele; De Santis, Adriano; Conti, Valentina; d'Amati, Giulia; Riggio, Oliviero; Quinti, Isabella

2014-01-01

266

Portale hypertensie : een experimenteel model met dimethylnitrosamine  

Microsoft Academic Search

De behandeling van patiënten met een bloeding uit slokdarmvarices ten gevolge\\u000avan portale hypertensie levert nog steeds geen bevredigende resultaten op\\u000a(Sherlock 1978). Operaties die de druk in de vena portae verlagen, zoals een portocavale\\u000ashunt, zijn effectief wanneer het er om gaat een bloeding tot staan te\\u000abrengen en een recidief bloeding te voorkomen, maar de overleving van geopereerde

O. T. Terpstra

1979-01-01

267

Inflammation and portal hypertension - the undiscovered country.  

PubMed

Portal hypertension has traditionally been viewed as a progressive process, involving ultrastructural changes including fibrosis, nodule formation, and vascular thrombosis, leading to increased intrahepatic resistance to flow. However, it is increasingly recognized that a significant component of this vascular resistance results from a dynamic process, regulated by complex interactions between the injured hepatocyte, the sinusoidal endothelial cell, the Kupffer cell and the hepatic stellate cell, which impact on sinusoidal calibre. Recent findings suggest these haemodynamic findings are most marked in patients with superimposed inflammation. The precise mechanisms for vascular dysfunction in cirrhosis with superimposed inflammation remain to be fully elucidated but several studies over the past decade have started to generate the hypothesis that inflammation may be a key mediator of the pathogenesis and severity of portal hypertension in this context. This review provides a comprehensive overview of the biological mechanisms for inflammation playing a key role in the severity of portal hypertension, and illustrates potential novel therapies that act by modifying these processes. PMID:24657399

Mehta, Gautam; Gustot, Thierry; Mookerjee, Rajeshwar P; Garcia-Pagan, Juan Carlos; Fallon, Michael B; Shah, Vijay H; Moreau, Richard; Jalan, Rajiv

2014-07-01

268

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

269

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

270

Pulsed Doppler duplex sonography and CT of portal vein thrombosis  

SciTech Connect

Five patients with partial or complete portal vein thrombosis were examined by both computed tomography (CT) and pulsed Doppler duplex scanning. Duplex scanning correctly identified portal vein thrombosis in all five. Duplex sonography may be the preferred technique to detect and follow portal vein thrombosis because of lower cost, lack of need for intravenous contrast material, and easier availability for multiple follow-up examinations.

Miller, V.E.; Berland, L.L.

1985-07-01

271

Altered Liver Morphology After Portal Vein Thrombosis: Not Always Cirrhosis  

Microsoft Academic Search

The macroscopic appearance of the liver after primary portal vein thrombosis often mimics cirrhosis, despite the absence of\\u000a bridging fibrosis at histology. The purpose of this study was to describe unique morphologic changes of the liver after portal\\u000a venous thrombosis. A retrospective review was performed to find patients with portal vein thrombosis and a corresponding noncirrhotic\\u000a liver biopsy. The CT

Mitchell E. Tublin; Alexander J. Towbin; Michael P. Federle; Michael A. Nalesnik

2008-01-01

272

iNIU - A Services Portal for NIU Students  

Microsoft Academic Search

iNIU is a centralized online portal aiming for Northern Illinois University (NIU) students to access various services, from the university as well as the Internet, in one Web portal using a single login id. The portal exploits the Web 2.0 technology to mash-up a variety of existing Web services that NIU students frequently use, including blog, weather, clock, calendar, news,

Raghu Kumar Reddy Ariga; Karthik Akula; Shreya Reddy Gujjala; Momtazul Karim; Shishira Ramesh; Jia Zhang

2008-01-01

273

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

274

Surgical treatment of schistosomal portal hypertension.  

PubMed

Schistosomiasis mansoni is a widespread parasitic disease in the Brazilian territory that affects over 8 million individuals. Hepatosplenic schistosomiasis is a serious clinical presentation of this disease, associated with splenomegaly, liver fibrosis, and portal hypertension, and is responsible for approximately 7% of schistosomotic patients. The surgical treatment of portal hypertension in schistosomotic patients has distinct features when compared with cirrhotic patients, mostly because hepatic function is preserved in schistosomotic liver disease. Therefore, when attempting to reduce the portal pressure, the surgeon must be aware that the surgery might interfere with hepatic perfusion, and consequently with hepatic function. The aim of this study was to report the results achieved with splenectomy, division of the left gastric vein, devascularization of great gastric curvature, and postoperative endoscopic variceal sclerosis, as a surgical option to esophageal varices in hepatosplenic schistosomiasis. A total of 111 patients were studied, and the following is a list of inclusion criteria: age >16 years, history of gastrointestinal (GI) bleeding, presence of esophageal varices on preoperative endoscopy, hematocrit >22% and prothrombin enzymatic activity >50%, negative viral hepatitis on serologic tests (anti-HBV and anti-HCV), and definition, after liver biopsy, of exclusive schistosomotic liver disease. The following list includes exclusion criteria used: presence of liver disease other than schistosomotic, history of alcohol abuse, and preoperative thrombosis of the portal vein. The rebleeding rate was 14.4% during a mean 30-month follow-up period; portal vein thrombosis was 13.2%, and there was a global mortality of 5.4%. Gastric varices were present in 46.9% of the patients; for those patients, a gastrotomy and running suture of the varices achieved an eradication rate of the varices of 75.6%. The degree of periportal fibrosis was also analyzed. Periportal fibrosis staging revealed that patients with class II or III liver fibrosis had a significant increased risk of recurrent GI bleeding when compared with patients with class I liver fibrosis. Despite the elevation on alanine aminotransferase (ALT) and aspartate aminotransferase (AST), most other liver function tests showed no alteration or were corrected after surgery. We conclude that splenectomy, division of the left gastric vein, devascularization of great gastric curvature, and postoperative endoscopic variceal sclerosis showed good results globally and should be considered as therapeutic options in the treatment of hepatosplenic schistosomiasis. PMID:11890333

Ferraz, A A; Bacelar, T S; Silveira, M J; Coelho, A R; Câmara Neto, R D; de Araújo Júnior, J G; Ferraz, E M

2001-01-01

275

This form is required for all users of George Mason University's eHR database which includes applicant tracking (eWork). Please fax or e-mail this form to (703) 993-2601 / jobs@gmu.edu.  

E-print Network

to and including termination of my employment. Employee Supervisor Department Head Date @gmu.edu eHR User Access applicant tracking (eWork). Please fax or e-mail this form to (703) 993-2601 / jobs@gmu.edu. Employee G#: Employee Title: Employee Name (Last, First, Middle): Employee E-mail: Organization #: Employee GMU Contact

276

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. PMID:23984149

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

2013-01-01

277

Strategic Mobility 21. Collaborative Regional Web Portal Design, Development and Documentation.  

National Technical Information Service (NTIS)

This report documents the research and initial development of a Web Portal by the strategic Mobility 21 (SM21) program, including defining requirements for an SM21 Web Portal and reviewing current literature and technology associated with Web Portals supp...

L. G. Mallon, S. Carson

2007-01-01

278

Duplex Doppler Ultrasound Examination of the Portal Venous System: An Emerging Novel Technique for the Estimation of Portal Vein Pressure  

Microsoft Academic Search

Purpose  Measurement of portal venous pressure in patients with portal hypertension is important to assess efficacy of beta blockers\\u000a in patients with esophageal varices. Currently, the gold standard for measurement of portal venous pressure is the estimation\\u000a of hepatic venous pressure gradient (HVPG). Being an invasive technique, serial measurements of HVPG are not feasible in clinical\\u000a practice. In this respect, duplex

Ashwani K. Singal; Masood Ahmad; Roger D. Soloway

2010-01-01

279

“Endemic” idiopathic portal hypertension: Report on 32 patients with non-cirrhotic portal fibrosis  

Microsoft Academic Search

The clinical features, surgical management, and long term follow up of 32 patients from Iran with idiopathic portal hypertension are reported. Many features of the disease are similar to those reported from India and Japan. The unsuspected finding was a 46% history of marked pica of clay (geophagia) in a subset of 26 patients. In addition, 81% of our patients

Cyrus Vakili; Mohammad J. Farahvash; T. Edward Bynum

1992-01-01

280

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

281

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

282

The NOAO NVO Portal: Overall Design & Implementation  

NASA Astrophysics Data System (ADS)

We present an overview and design of the NOAO National Virtual Observatory (NVO) Portal. This is a web application providing one-stop discovery, analysis, and access to VO-compliant imaging data and services. It strictly follows the Model-View-Controller (MVC) design pattern and relies heavily on Asynchronous Javascript And XML (AJAX) in the browser. Because of the heavy use of AJAX, the relatively simple database schemas, and, most importantly, the rapid development/iteration schedule, Ruby-on-Rails (RoR) was chosen as the implementation language and PostgreSQL as the database engine.

Fuentes, E.; Miller, C. J.; Gasson, D.

2007-10-01

283

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

284

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. PMID:25009370

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

2014-01-01

285

Ovarian Hyperthecosis in the Setting of Portal Hypertension  

Microsoft Academic Search

Hepatocellular dysfunction and perturbed portal hemodynamics alter steroid metabolism. Men with liver disease have gynecomastia, although women similarly affected rarely show virilization. We report a 10-yr-old girl with portal hypertension and shunting associated with precocious puberty and ovarian hyperandrogenism. This was one of premature twin girls; neither had clitoromegaly or genital ambiguity. In one child, neonatal respiratory problems led to

PHYLLIS W. SPEISER; MYRON SUSIN; HIRONOBU SASANO; STUART BOHRER; JAMES MARKOWITZ

286

Changes in Rat Gastric Mucosal Glycoproteins in Portal Hypertension  

Microsoft Academic Search

The aim of this study was to determine the effect of portal hypertension (PHT) on gastric mucosal glycoproteins in rats. PHT was induced experimentally by partial ligation of the portal vein (PVL) in 20 male Wistar rats: 10 rats (PVL4 group) were analyzed after 4 weeks and the remaining 10 (PVL8 group) after 8 weeks. In another group of 10

J. Y. Wang; J. S. Hsieh; T. J. Huang

1997-01-01

287

The romanesque marble portals of Schloss Tirol\\/Italy  

Microsoft Academic Search

Marble artifacts are confronted with two kinds of problems: i) weathering, which is a task for material conservation research, ii) unclear provenance which creates problems with respect to historical interpretations. An art historically very prominent example are the two romanesque marble portals of Schloß Tyrol\\/ South Tyrol\\/Italy, the Palas portal at the entrance sheltered by a canopy and the Chapel

A. Recheis; Th. Bidner; W. Hauser; P. W. Mirwald

2003-01-01

288

Information portals: a strategy for importing external content  

Microsoft Academic Search

Intranets and portals are supposed to provide an infrastructure through which end-users can gain effective access to information sources needed to assist in daily tasks such as effective decision making, planning and research. This paper discusses the current lack of clarity on how to address the external information issue in conjunction with the current popularity of portals and their multiplicity,

Pieter Van Brakel

2003-01-01

289

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

290

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. PMID:17999758

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

2007-01-01

291

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

292

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

293

Seer: A Chemistry Web Portal for Scientific Literature and Datasets  

E-print Network

ChemX Seer: A Chemistry Web Portal for Scientific Literature and Datasets The revolution architectures such as CiteSeer1 , a digital library and search engine focusing on scientific literature in Computer Science and related fields. We present an overview of ChemX Seer architecture, a portal

Mitra, Prasenjit

294

Deformable Multi Template Matching with Application to Portal Images  

Microsoft Academic Search

The exact positioning of patients during radiotherapy is essential for high precision treatment. The registration of portal image sequences (megavoltage X-ray images) can help to control the patient position. The particular problem of portal imaging devices is that the y provide imagery with extremely low contrast. Therefore, feature extraction followed by binary feature mat ching is a difficult task. To

Martin Berger; Gaudenz Danuser

1997-01-01

295

8. FIGUEROA STREET TUNNEL NO. 2, SOUTH PORTAL SEEN FROM ...  

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

8. FIGUEROA STREET TUNNEL NO. 2, SOUTH PORTAL SEEN FROM ABOVE NORTH PORTAL OF TUNNEL NO. 3. LOOKING 12°N. - Figueroa Street Tunnels, Mileposts 24.90, 25.14, 25.28, & 25.37 on Arroyo Seco Parkway, Los Angeles, Los Angeles County, CA

296

1. West portal of Tunnel 38, contextual view to east, ...  

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

1. West portal of Tunnel 38, contextual view to east, 135mm lens. West portal of Tunnel 3 (HAER CA-212) on original Central Pacific Transcontinental line visible in distance at left. - Central Pacific Transcontinental Railroad, Tunnel No. 38, Milepost 180.58, Cisco, Placer County, CA

297

1. West portal of Tunnel 35, contextual view to eastnortheast ...  

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

1. West portal of Tunnel 35, contextual view to east-northeast with west portal of Tunnel 36 (HAER CA-209) visible in distance at left, 135mm lens. - Central Pacific Transcontinental Railroad, Tunnel No. 35, Milepost 176.62, Yuba Pass, Nevada County, CA

298

3. East portal of Tunnel 39, view to west with ...  

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

3. East portal of Tunnel 39, view to west with east portal of Tunnel 38 (HAER CA-211) visible in distance, 135mm lens with electronic flash fill. - Central Pacific Transcontinental Railroad, Tunnel No. 39, Milepost 180.95, Cisco, Placer County, CA

299

1. West portal of Tunnel 39, contextual view to east, ...  

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

1. West portal of Tunnel 39, contextual view to east, 135mm lens. West portal of Tunnel 4 (HAER CA-214) on the original Central Pacific Transcontinental line is visible at left. - Central Pacific Transcontinental Railroad, Tunnel No. 39, Milepost 180.95, Cisco, Placer County, CA

300

6. East portal of Tunnel 18, oblique view to northwest, ...  

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

6. East portal of Tunnel 18, oblique view to northwest, 135mm lens. This view shows to advantage the stepped ashlar granite wingwalls and fitted rubble slab slope protection flanking the portal, features typical of the Southern Pacific Common Standard tunnels. - Central Pacific Transcontinental Railroad, Tunnel No. 18, Milepost 120.5, Newcastle, Placer County, CA

301

1. West portal of Tunnel 27 in distance, contextual view ...  

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

1. West portal of Tunnel 27 in distance, contextual view to northeast looking past Tunnel 26 (HAER CA-202) from atop east portal of Tunnel 25 (HAER CA-201), 380mm lens. - Central Pacific Transcontinental Railroad, Tunnel No. 27, Milepost 133.9, Applegate, Placer County, CA

302

2. West portal of Tunnel 18, oblique view to northnortheast, ...  

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

2. West portal of Tunnel 18, oblique view to north-northeast, 135mm lens. Note the use of concrete face and wingwalls, with dressed stone voussoirs, wingwall coping, parapet with stone belt course and coping, and coursed stone masonry slope protection flanking the portal. - Southern Pacific Railroad Natron Cutoff, Tunnel No. 18, Milepost 410, Dorris, Siskiyou County, CA

303

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.

304

34 CFR 222.153 - How must a local educational agency request an administrative hearing?  

...SECONDARY EDUCATION, DEPARTMENT OF EDUCATION IMPACT AID PROGRAMS Impact Aid Administrative Hearings and Judicial Review Under Section...address it to the Secretary, c/o Director, Impact Aid Program, 600 Independence Ave., SW, Portals...

2014-07-01

305

Teaching Disaster Preparedness in Geographic Education  

Microsoft Academic Search

Extreme natural and human-made disasters can affect the lives of thousands of citizens. The only way we can prepare ourselves for such situations is to learn and establish basic survival strategies within our families and communities. This article explores how K–12 teachers could help educating children about disaster preparedness by utilizing existing educational standards and Web portals for disaster education.

Sven Fuhrmann; Lee D. Stone; Melinda C. Casey; Mary D. Curtis; Amber L. Doyle; Brian D. Earle; Douglas D. Jones; Philip Rodriguez; Steven M. Schermerhorn

2008-01-01

306

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. PMID:24307792

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

2013-01-01

307

Portal Hypertension Secondary to Spontaneous Arterio-Portal Venous Fistulas: Transcatheter Arterial Embolization with n Butyl Cyanoacrylate and Microcoils  

Microsoft Academic Search

We report a 73-year-old man with recurrent variceal bleeding due to portal hypertension caused by multiple intrahepatic arterio-portal\\u000a venous fistulas, which were successfully occluded by embolization with n-butyl cyanoacrylate and micro-coils.

Takuji Yamagami; Toshiyuki Nakamura; Tsunehiko Nishimura

2000-01-01

308

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. PMID:24976841

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

2014-01-01

309

Scout Portal Tookit 1.1.1  

NSDL National Science Digital Library

Version 1.1.1 of this turnkey open source portal software has just been released by the Internet Scout Project. The Scout Portal Toolkit (SPT) allows groups or organizations to catalog and disseminate their collections or resources via the World Wide Web without a significant outlay of technical resources or expertise. SPT's metadata tool comes packaged with Dublin Core fields which can be modified easily to fit a collection's specific needs. Other features include a flexible interface (through separation of PHP and HTML), privilege settings, and workflow management features. Also of interest are a recommender system, reader ratings and comments, and a Google-like search engine. In order to make it more useful to all users, including those with disabilities, SPT was built with special attention paid to accessibility issues. Persons hoping to take advantage of this excellent (and free) Toolkit will need to have access to a Web server that supports PHP and MySQL, preferably running Linux and Apache. New to Version 1.1.1 are features that include support for image metadata field(s), simplified data import and export, color and logo customization, improved operation under PHP safe mode, and bug fixes.

2003-01-01

310

Physiopathology of splanchnic vasodilation in portal hypertension  

PubMed Central

In liver cirrhosis, the circulatory hemodynamic alterations of portal hypertension significantly contribute to many of the clinical manifestations of the disease. In the physiopathology of this vascular alteration, mesenteric splanchnic vasodilation plays an essential role by initiating the hemodynamic process. Numerous studies performed in cirrhotic patients and animal models have shown that this splanchnic vasodilation is the result of an important increase in local and systemic vasodilators and the presence of a splanchnic vascular hyporesponsiveness to vasoconstrictors. Among the molecules and factors known to be potentially involved in this arterial vasodilation, nitric oxide seems to have a crucial role in the physiopathology of this vascular alteration. However, none of the wide variety of mediators can be described as solely responsible, since this phenomenon is multifactorial in origin. Moreover, angiogenesis and vascular remodeling processes also seem to play a role. Finally, the sympathetic nervous system is thought to be involved in the pathogenesis of the hyperdynamic circulation associated with portal hypertension, although the nature and extent of its role is not completely understood. In this review, we discuss the different mechanisms known to contribute to this complex phenomenon. PMID:21160999

Martell, Maria; Coll, Mar; Ezkurdia, Nahia; Raurell, Imma; Genesca, Joan

2010-01-01

311

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

312

The Anatomy of a Grid portal  

E-print Network

In this paper we introduce a new way to deal with Grid portals referring to our implementation. L-GRID is a light portal to access the EGEE/EGI Grid infrastructure via Web, allowing users to submit their jobs from a common Web browser in a few minutes, without any knowledge about the Grid infrastructure. It provides the control over the complete lifecycle of a Grid Job, from its submission and status monitoring, to the output retrieval. The system, implemented as client-server architecture, is based on the Globus Grid middleware. The client side application is based on a java applet; the server relies on a Globus User Interface. There is no need of user registration on the server side, and the user needs only his own X.509 personal certificate. The system is user-friendly, secure (it uses SSL protocol, mechanism for dynamic delegation and identity creation in public key infrastructures), highly customizable, open source, and easy to install. The X.509 personal certificate does not get out from the local machi...

Licari, Daniele; 10.1088/1742-6596/331/7/072043

2012-01-01

313

Sclerotherapy in extrahepatic portal venous obstruction.  

PubMed Central

One hundred and twenty two patients who presented with variceal bleeding as a result of extrahepatic portal vein obstruction (EHPO) were entered into the sclerotherapy programme with a mean follow up of 23.69 months (range four to 60 months). Eighteen (14.7%) patients were lost to follow up, three (2.4%) patients underwent surgery, and six (4.9%) patients died. Variceal obliteration was achieved in the remaining 95 patients requiring 5.4 (2.4) sessions of sclerotherapy (range 2-18). Seventeen episodes of upper gastrointestinal bleed occurred in 15 patients during sclerotherapy. Recurrence of oesophageal varices was seen in 15 patients. Ten patients developed bulbous gastric varices after obliteration. Major complications including perforation and strictures were seen more commonly in children. Sclerotherapy was associated with a significant reduction in the bleeding rate (bleeds/month/patient) as compared with the presclerotherapy period (p less than 0.001). Endoscopic sclerotherapy is an effective and safe modality in the prevention of variceal bleeds in patients with extrahepatic portal vein obstruction. PMID:2311981

Chawla, Y K; Dilawari, J B; Ramesh, G N; Kaur, U; Mitra, S K; Walia, B N

1990-01-01

314

Evaluating User Experiences of the Secure Messaging Tool on the Veterans Affairs' Patient Portal System  

PubMed Central

Background The United States Department of Veterans Affairs has implemented an electronic asynchronous “Secure Messaging” tool within a Web-based patient portal (ie, My HealtheVet) to support patient-provider communication. This electronic resource promotes continuous and coordinated patient-centered care, but to date little research has evaluated patients’ experiences and preferences for using Secure Messaging. Objective The objectives of this mixed-methods study were to (1) characterize veterans’ experiences using Secure Messaging in the My HealtheVet portal over a 3-month period, including system usability, (2) identify barriers to and facilitators of use, and (3) describe strategies to support veterans’ use of Secure Messaging. Methods We recruited 33 veterans who had access to and had previously used the portal’s Secure Messaging tool. We used a combination of in-depth interviews, face-to-face user-testing, review of transmitted secure messages between veterans and staff, and telephone interviews three months following initial contact. We assessed participants’ computer and health literacy during initial and follow-up interviews. We used a content-analysis approach to identify dominant themes in the qualitative data. We compared inferences from each of the data sources (interviews, user-testing, and message review) to identify convergent and divergent data trends. Results The majority of veterans (27/33, 82%) reported being satisfied with Secure Messaging at initial interview; satisfaction ratings increased to 97% (31/32, 1 missing) during follow-up interviews. Veterans noted Secure Messaging to be useful for communicating with their primary care team to manage health care needs (eg, health-related questions, test requests and results, medication refills and questions, managing appointments). Four domains emerged from interviews: (1) perceived benefits of using Secure Messaging, (2) barriers to using Secure Messaging, (3) facilitators for using Secure Messaging, and (4) suggestions for improving Secure Messaging. Veterans identified and demonstrated impediments to successful system usage that can be addressed with education, skill building, and system modifications. Analysis of secure message content data provided insights to reasons for use that were not disclosed by participants during interviews, specifically sensitive health topics such as erectile dysfunction and sexually transmitted disease inquiries. Conclusions Veterans perceive Secure Messaging in the My HealtheVet patient portal as a useful tool for communicating with health care teams. However, to maximize sustained utilization of Secure Messaging, marketing, education, skill building, and system modifications are needed. Data from this study can inform a large-scale quantitative assessment of Secure Messaging users’ experiences in a representative sample to validate qualitative findings. PMID:24610454

Lind, Jason D; Shimada, Stephanie L; Martin, Tracey L; Gosline, Robert M; Antinori, Nicole; Stewart, Max; Simon, Steven R

2014-01-01

315

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

316

Science Ed Analyst (Prog Dir),AD-1701-4 EHR/REC (Closes: 09/28/2005)  

NSF Publications Database

National Science Foundation Excepted Position Vacancy ANNOUNCEMENT NO: E20050130 OPEN: 08/29/05 CLOSE: 09/28/05 THIS IS A PERMANENT POSITION. PROMOTION POTENTIAL: Science Education Analyst (Program Director), AD-1701-4 LOCATION: Directorate for Education and Human Resources, Division of Research, Evaluation and Communication, National Science Foundation, Arlington, VA. RELOCATION: Expenses will be paid BARGAINING UNIT STATUS: This position is included in the bargaining unit and will be filled...

317

[Kidney issues web portal--a project proposal].  

PubMed

Chronic kidney disease is a serious medical condition associated with premature mortality, decreased quality of life and increased health care needs. The increasing number of patients, an increasing number of kidney decease replacement therapy and increased total cost of treating end-stage disease are the characteristics ofthis important public health problem. In order to solve this problem the public health approach could be to promote health as a process of training individuals and companies to increase control over determinants of health and so improve their own health. In this case public health service proposed project is "Kidney issues web portal," which would consist of two parts, a public and official. The public portion would allow the education and health promotion by informing the entire population, and an official one would serviced the health professionals with the information needed. The project would be implemented in a series of planned activities throughout seven months. This project would include physicians who participate in the treatment of persons suffering from kidney disease, public health professionals, representatives of health institutions, industry, local authorities and associations of patients as co-operators. The project and the financing of the project would be implemented in three phases (teams formation, project design and implementation phase), and funding would be possible from several sources. The different type of evaluation would be carried out in two phases, process evaluation and finished project evaluation. PMID:23120823

Susnjara, Ivana Marasovi?

2011-10-01

318

Tumor necrosis factor ?: A major contributor to the hyperdynamic circulation in prehepatic portal-hypertensive rats  

Microsoft Academic Search

Background\\/Aims: Portal hypertension is often accompanied by a hyperdynamic circulatory syndrome. Tumor necrosis factor (TNF) ? causes vasodilatation and a hyperdynamic state in mammals by activating nitric oxide synthesis. The aim of this study was to investigate whether TNF-? plays a role in developing the hyperdynamic syndrome in portal hypertension. Methods: Portal-hypertensive rats, induced by partial ligation of the portal

Juan Carlos Lopez-Talavera; William W. Merrill; Roberto J. Groszmann

1995-01-01

319

Utility of endoscopic ultrasound in patients with portal hypertension  

PubMed Central

Endoscopic ultrasound (EUS) has revolutionized the diagnostic and therapeutic approach to patients with gastrointestinal disorders. Its application in patients with liver disease and portal hypertension is increasing. Patients with chronic liver disease are at risk for development of portal hypertension sequale such as ascites, spontaneous bacterial peritonitis and gastroesophageal varices. Bleeding esophageal and gastric varices are among the most common causes of mortality in patients with cirrhosis. Thus, early detection and treatment improve the outcome in this population. EUS can improve the detection and diagnosis of gastroesophageal varices and collateral veins and can provide endoscopic therapy of gastroesophageal varices such as EUS-guided sclerotherapy of esophageal collateral vessels and EUS-guided cynoacrylate (Glue) injection of gastric varices. EUS can also provide knowledge on the efficacy of pharmacotherapy of portal hypertension. Furthermore, EUS can provide assessment and prediction of variceal recurrence after endoscopic therapy and assessment of portal hemodynamics such as E-Flow and Doppler study of the azygous and portal veins. Moreover, EUS-guided fine needle aspiration may provide cytologic diagnosis of focal hepatic tumors and analysis of free abdominal fluid. Using specialized EUS-guided needle biopsy, a sample of liver tissue can be obtained to diagnose and evaluate for chronic liver disease. EUS-guided fine needle injection can be used to study portal vein pressure and hemodynamics, and potentially could be used to assist in exact measurement of portal vein pressure and placement of intrahepatic portosystemic shunt. PMID:25339809

Hammoud, Ghassan M; Ibdah, Jamal A

2014-01-01

320

GridGIS portal development based on OGCE  

NASA Astrophysics Data System (ADS)

GridGIS is the application of grid computing technology on GIS field, which aims to realize the spatial information sharing and cooperative service. However, current grid technologies are generally difficult to use, so the development and deployment of Web portals that simplifies usage of grid resources has become popular. Grid-enabled portals can thus serve as simple, single points of entry or gateway to multiple computing resources, providing access to complex grid tools and services. In this paper, we give an overview of GridGIS project and the key role of that GridGIS portal is playing in reaching its goals. Then, we describe the portal and Open Grid Computing Environment (OGCE) portal toolkit. Basing on OGCE and integrated Open Geospatial Consortium (OGC) Web service, we design the architecture of the GridGIS portal. In an open source development environment, we develop and deploy GridGIS portal, which includes authentication module, Grid Port Information Repository (GPIR) portlet, Comprehensive File Management (CFM) portlet, Grid Resource Allocation and Management (GRAM) portlet and Map Viewer portlet.

Sun, Yumei; Fang, Yu; Chen, Bin; Rana, Tohid Ahmed; Lin, Jiayuan; Li, Xiaona

2009-10-01

321

The portal fibroblast: not just a poor man's stellate cell.  

PubMed

Portal fibroblasts, the resident fibroblasts of the portal tract, are found in the mesenchyme surrounding the bile ducts. Their roles in liver homeostasis and response to injury are undefined and controversial. Although portal fibroblasts almost certainly give rise to myofibroblasts during the development of biliary fibrosis, recent lineage tracing studies suggest that their contribution to fibrogenesis is limited compared with that of hepatic stellate cells. Other functions of portal fibroblasts include participation in the peribiliary stem cell niche, regulation of cholangiocyte proliferation, and deposition of specific matrix proteins. Portal fibroblasts synthesize elastin and other components of microfibrils; these may serve structural roles, providing stability to ducts and the vasculature under conditions of increased ductal pressure, or could regulate the bioavailability of the fibrogenic transforming growth factor ? in response to injury. Viewing portal fibroblasts in the context of fibroblast populations throughout the body and studying their niche-specific roles in matrix deposition and epithelial regulation could yield new insights into their contributions in the normal and injured liver. Understanding the functions of portal fibroblasts will require us to view them as more than just an alternative to hepatic stellate cells in fibrosis. PMID:24814904

Wells, Rebecca G

2014-07-01

322

Rational Classification of Portal Vein Thrombosis and Its Clinical Significance  

PubMed Central

Portal vein thrombosis (PVT) is commonly classified into acute (symptom duration <60 days and absence of portal carvernoma and portal hypertension) and chronic types. However, the rationality of this classification has received little attention. In this study, 60 patients (40 men and 20 women) with PVT were examined using contrast-enhanced computed tomography (CT). The percentage of vein occlusion, including portal vein (PV) and superior mesenteric vein (SMV), was measured on CT image. Of 60 patients, 17 (28.3%) met the criterion of acute PVT. Symptoms occurred more frequently in patients with superior mesenteric vein thrombosis (SMVT) compared to those without SMVT (p<0.001). However, there was no significant difference in PV occlusion between patients with and without symptoms. The frequency of cavernous transformation was significantly higher in patients with complete PVT than those with partial PVT (p<0.001). Complications of portal hypertension were significantly associated with cirrhosis (p<0.001) rather than with the severity of PVT and presence of cavernoma. These results suggest that the severity of PVT is only associated with the formation of portal cavernoma but unrelated to the onset of symptoms and the development of portal hypertension. We classified PVT into complete and partial types, and each was subclassified into with and without portal cavernoma. In conclusion, neither symptom duration nor cavernous transformation can clearly distinguish between acute and chronic PVT. The new classification system can determine the pathological alterations of PVT, patency of portal vein and outcome of treatment in a longitudinal study. PMID:25393320

Ma, Jingqin; Yan, Zhiping; Luo, Jianjun; Liu, Qingxin; Wang, Jianhua; Qiu, Shijing

2014-01-01

323

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. PMID:23011060

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

2012-01-01

324

Portal Vein Aneurysms: A Case Series with Literature Review  

PubMed Central

Portal vein aneurysms are a relatively uncommon entity and often an incidental, asymptomatic finding. Recognition of this finding can help to avoid potential confusion with abdominal masses of other etiologies. We would like to present four cases of portal vein aneurysms, and discuss the natural history, imaging findings, and treatment of this condition. One of the cases of portal vein aneurysm presented occurred after liver transplantation, which, to the best of our knowledge, has only been described once in the English-language literature. PMID:22470738

Schwope, Ryan B.; Margolis, Daniel J.; Raman, Steven S.; Kadell, Barbara M.

2010-01-01

325

The Modified Mid-Anterior Portal for Hip Arthroscopy  

PubMed Central

The modified mid-anterior portal is a utilitarian hip arthroscopy working portal that permits dual-portal comprehensive surgery for femoroacetabular impingement and related chondrolabral procedures without the need for interportal exchange. Its distal location facilitates labral reparative and reconstructive procedures while minimizing iatrogenic acetabular chondral damage. The relatively lateral location permits instrument navigation not only along the anterosuperior acetabular rim and anterolateral proximal femur typically required for acetabuloplasty and femoroplasty but even to the posterior regions of the hip in cases of global pincer femoroacetabular impingement and posterior extensions of cam morphology and the anteromedial proximal femur while avoiding direct injury to the lateral femoral cutaneous nerve.

Matsuda, Dean K.; Villamor, Angel

2014-01-01

326

The romanesque marble portals of Schloss Tirol/Italy  

NASA Astrophysics Data System (ADS)

Marble artifacts are confronted with two kinds of problems: i) weathering, which is a task for material conservation research, ii) unclear provenance which creates problems with respect to historical interpretations. An art historically very prominent example are the two romanesque marble portals of Schloß Tyrol/ South Tyrol/Italy, the Palas portal at the entrance sheltered by a canopy and the Chapel portal leading directly from the palas hall into the chapel. Stilistic criteria and historical sources date them into the 12th century (1). The performed study concerned a detailed macroscopic mapping and ultrasonic work (2) as well as petrographical and chemical investigations on some very small drill core samples. The map-ping and ultrasonic work revealed that the Palas portal is significantly more weathered and damaged than the chapel portal. At first glance this finding seems consistent with the location of the objects. However, even if a reported period of some 120 years of unsheltered free exposure of the Palas portal after its construction is taken into account, the weathering impacts are too severe (5). A fire catastrophy documented around 1300 might be considered the relevant damage event. This again sheds some light on the specific history of the well preserved Chapel portal: stylistically both portals are contemporaneous, so one may assume that it had been taken from another locality and was built in later. A potential candidate for this is a karolingian church (7-8th century) outside the castle-complex of which the relics have been excavated recently. This picture is substantiated by the results of the material investigations (grain size, chemistry and C, O isotopes (3)) suggesting different provenance of the marbles of the two portals. Comparative studies on the regional marbles speak in favour for Laas Marble for the Palas portal and Sterzing Marble for the Chapel portal (4). The study is continued with a detailed investigation on the supposed fire damages on the palas portal (1) G. Seebach (1995): Katalog Tiroler Landesausstellung 79-83. (2) W. Köhler (1998): Proc. 9thEurocare-Euromarble Workshop Munich, Oct .8.-10. (3) H. Craig, V. Craig (1972): Science 176, pp.401-403 (4) R. Fimmel (1996): Dissertation Univ. Innsbruck, 119 p. (5) St. Simon, R. Snethlage (1996): Proc. 6th Eurocare-Euromarble Workshop Suzdal, Sept. 9.-13.

Recheis, A.; Bidner, Th.; Hauser, W.; Mirwald, P. W.

2003-04-01

327

[Chronic cholestasis as a presentation form of portal cavernoma].  

PubMed

A 37 year-old-woman was evaluated in 1993 for a chronic asymptomatic cholestasis. An endoscopic retrograde cholangiopancreatography showed the biliary tract compressed, and a mesenteric angiogram disclosed that the cause of biliary obstruction was a portal cavernoma. In addition, large esophageal varices with "red spots" were observed at endoscopy. Propranolol and ursodeoxicolic acid were started and the patient has remained asymptomatic to date. The biliary features of portal cavernoma are reviewed, as well as its pathogenesis, diagnosis and management. Portal cavernoma should be considered in the differential diagnosis of chronic cholestasis. PMID:9633181

García Escaño, M D; Andrade, R J; Alcántara, R; Melgarejo, F; Camargo, R; Moreno, P; Alcaín, G; Fraile, J M; Franquelo, E

1998-04-01

328

Duodenal obstruction due to a preduodenal portal vein.  

PubMed

An infant presented with clinical signs and symptoms suggestive of a pyloric stenosis. On abdominal ultrasound, pyloric stenosis was excluded, and other causes for proximal duodenal obstruction, such as a duodenal web or annular pancreas, were suspected. At surgery, the cause was found to be due to an anterior portal vein or preduodenal portal vein, compressing the duodenum. There were no associated findings such as midgut malrotation, duodenal web and congenital anomalies. The treatment was a diamond-shaped duodeno-duodenostomy anterior to the portal vein. The patient improved after surgery. PMID:25323190

Vilakazi, Mnc; Ismail, F; Swanepoel, H M; Muller, E W; Lockhat, Z I

2014-01-01

329

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

330

Portal hypertensive gastropathy and gastric antral vascular ectasia  

Microsoft Academic Search

Opinion statement  \\u000a \\u000a \\u000a \\u000a \\u000a – \\u000a \\u000a Portal hypertensive gastropathy (PHG) causes both acute and chronic blood loss from the gastrointestinal tract in patients\\u000a with portal hypertension. Gastric antral vascular ectasia (GAVE) is a distinct condition also associated with portal hypertension\\u000a that can cause acute and chronic upper gastrointestinal blood loss. These conditions frequently, but not invariably, are diagnosed\\u000a by upper endoscopy. Although they

Nelson Garcia; Arun J. Sanyal

2001-01-01

331

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

332

CLIPC - the Climate Information Portal for Copernicus  

NASA Astrophysics Data System (ADS)

The Copernicus program is the European Commission's Earth Observation Program. The reserach project "Climate Information Portal for Copernicus" (CLIPC) will develop a data service infrastructure to provide harmonised access to climate information from in-situ and satellite observations and also from climate models and re-analyses. CLIPC will also provide a toolkit to generate, compare, aggregate and rank indicators of climate change and climate change impacts. The project will build on the Earth System Grid Infrastructure used to disseminate the Coupled Model Intercomparison, Phase 5 (CMIP5) data used in the latest IPCC assessment report. The distributed archive model will be extended to support more data types and a wider variety of storage formats. The toolkit work will build on the set of aggregated climate impact indicators developed in the ESPON Climate project.

Juckes, Martin

2014-05-01

333

Architecture and Implementation of a Collaborative Computing and Education Portal  

E-print Network

Internet technologies. It is built in a modular fashion to enable multiple applications to re-use the same and research audio-video conferencing support. Only with such an approach can you build a sustainable high

334

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

335

Zero tolerance. With health IT money up for grabs, many EHR vendors are offering financing deals to attract business. But, just like shopping for a car, experts warn about reading the fine print before buying.  

PubMed

The government, by way of federal stimulus incentives, wants to boost the use of electronic health records. However, physician practices must be careful about low or no-interest offers when buying an EHR system, experts say. "The ultimate power a buyer has--I use the analogy of buying a car--is the ability to say 'no thanks' and walk out of the showroom", says Steven Fox, left, a partner at Post & Schell. PMID:20336867

Blesch, Gregg; Carlson, Joe

2010-03-01

336

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

337

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

338

View from western bridge portal along entrance road, softball fields ...  

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

View from western bridge portal along entrance road, softball fields to right and hospital complex in distance - New York State Soldiers & Sailors Home, Department of Veterans Affairs Medical Center, 76 Veterans Avenue, Bath, Steuben County, NY

339

13. Upper portal of tunnel on Newfound Gap Road looking ...  

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

13. Upper portal of tunnel on Newfound Gap Road looking S. - Great Smoky Mountains National Park Roads & Bridges, Newfound Gap Road, Between Gatlinburg, TN & Cherokee, NC, Gatlinburg, Sevier County, TN

340

A Standardization Framework for Electronic Government Service Portals  

NASA Astrophysics Data System (ADS)

Although most eGovernment interoperability frameworks (eGIFs) cover adequately the technical aspects of developing and supporting the provision of electronic services to citizens and businesses, they do not exclusively address several important areas regarding the organization, presentation, accessibility and security of the content and the electronic services offered through government portals. This chapter extends the scope of existing eGIFs presenting the overall architecture and the basic concepts of the Greek standardization framework for electronic government service portals which, for the first time in Europe, is part of a country's eGovernment framework. The proposed standardization framework includes standards, guidelines and recommendations regarding the design, development and operation of government portals that support the provision of administrative information and services to citizens and businesses. By applying the guidelines of the framework, the design, development and operation of portals in central, regional and municipal government can be systematically addressed resulting in an applicable, sustainable and ever-expanding framework.

Sarantis, Demetrios; Tsiakaliaris, Christos; Lampathaki, Fenareti; Charalabidis, Yannis

341

The Astrophysics Simulation Collaboratory portal: A framework foreffective distributed research  

SciTech Connect

We describe the motivation, architecture, and implementation of the Astrophysics Simulation Collaboratory (ASC) portal. The ASC project provides a web-based problem solving framework for the astrophysics community that harnesses the capabilities of emerging computational grids.

Bondarescu, Ruxandra; Allen, Gabrielle; Daues, Gregory; Kelly,Ian; Russell, Michael; Seidel, Edward; Shalf, John; Tobias, Malcolm

2003-03-03

342

5. VIEW OF SOUTH PORTAL OF BRIDGE, SHOWING PONY TRUSS ...  

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

5. VIEW OF SOUTH PORTAL OF BRIDGE, SHOWING PONY TRUSS APPROACH SPAN IN FOREGROUND AND THROUGH TRUSS IN BACKGROUND, LOOKING NORTH - Santa Fe Bridge, Spanning South Fork of Salt River at County Road 24, Santa Fe, Monroe County, MO

343

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

344

The Portals 4.0 network programming interface.  

SciTech Connect

This report presents a specification for the Portals 4.0 network programming interface. Portals 4.0 is intended to allow scalable, high-performance network communication between nodes of a parallel computing system. Portals 4.0 is well suited to massively parallel processing and embedded systems. Portals 4.0 represents an adaption of the data movement layer developed for massively parallel processing platforms, such as the 4500-node Intel TeraFLOPS machine. Sandia's Cplant cluster project motivated the development of Version 3.0, which was later extended to Version 3.3 as part of the Cray Red Storm machine and XT line. Version 4.0 is targeted to the next generation of machines employing advanced network interface architectures that support enhanced offload capabilities.

Barrett, Brian W.; Brightwell, Ronald Brian; Pedretti, Kevin Thomas Tauke; Wheeler, Kyle Bruce; Hemmert, Karl Scott; Riesen, Rolf E. [IBM; Underwood, Keith Douglas [Intel Corporation, Albuquerque, NM; Maccabe, Arthur Bernard [Oak Ridge National Laboratory, Oak Ridge, TN; Hudson, Trammell B. [OS Research, Brooklyn, NY

2012-11-01

345

The portals 4.0.1 network programming interface.  

SciTech Connect

This report presents a specification for the Portals 4.0 network programming interface. Portals 4.0 is intended to allow scalable, high-performance network communication between nodes of a parallel computing system. Portals 4.0 is well suited to massively parallel processing and embedded systems. Portals 4.0 represents an adaption of the data movement layer developed for massively parallel processing platforms, such as the 4500-node Intel TeraFLOPS machine. Sandia's Cplant cluster project motivated the development of Version 3.0, which was later extended to Version 3.3 as part of the Cray Red Storm machine and XT line. Version 4.0 is targeted to the next generation of machines employing advanced network interface architectures that support enhanced offload capabilities. 3

Barrett, Brian W.; Brightwell, Ronald Brian; Pedretti, Kevin Thomas Tauke; Wheeler, Kyle Bruce; Hemmert, Karl Scott; Riesen, Rolf E. [IBM; Underwood, Keith Douglas [Intel Corporation, Albuquerque, NM; Maccabe, Arthur Bernard [Oak Ridge National Laboratory, Oak Ridge, TN; Hudson, Trammell B. [OS Research, Brooklyn, NY

2013-04-01

346

2. VIEW OF EAST PORTAL, FACING WEST. FORMER PARKING AREA ...  

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

2. VIEW OF EAST PORTAL, FACING WEST. FORMER PARKING AREA TO LEFT OF WALL NOW RE-LANDSCAPED. - Big Oak Flat Road Tunnel No. 3, Through mountain spur on New Big Oak Flat Road, Yosemite Village, Mariposa County, CA

347

9. DETAIL OF PRATT DECK TRUSS, AND NORTH PORTAL OF ...  

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

9. DETAIL OF PRATT DECK TRUSS, AND NORTH PORTAL OF PENNSYLVANIA PETIT TRUSS WITH CONCRETE SUPPORTING PIER, LOOKING SOUTHWEST - James Bethel Gresham Memorial Bridge, Spanning Green Pond River at Kentucky Route 81, Calhoun, McLean County, KY

348

4. East portal of Tunnel 25, view to southwest from ...  

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

4. East portal of Tunnel 25, view to southwest from west end of Tunnel 26 (HAER CA-202), 135mm lens. - Central Pacific Transcontinental Railroad, Tunnel No. 25, Milepost 133.09, Applegate, Placer County, CA

349

3. East portal of Tunnel 24, contextual view to southwest, ...  

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

3. East portal of Tunnel 24, contextual view to southwest, 135mm lens. Note also Harriman Common Standard drain structure at right. - Central Pacific Transcontinental Railroad, Tunnel No. 24, Milepost 132.9, Applegate, Placer County, CA

350

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

351

1. West portal of Tunnel 25, contextual view to northeast ...  

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

1. West portal of Tunnel 25, contextual view to northeast from Tunnel 24 (HAER CA-200), 135mm lens. - Central Pacific Transcontinental Railroad, Tunnel No. 25, Milepost 133.09, Applegate, Placer County, CA

352

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

353

75 FR 24470 - Health Care Reform Insurance Web Portal Requirements  

Federal Register 2010, 2011, 2012, 2013

...DEPARTMENT OF HEALTH AND HUMAN SERVICES Office of the Secretary 45 CFR Part 159 RIN 0991-AB63 Health Care Reform Insurance Web Portal Requirements...in their State. The Department of Health and Human Services (HHS) is...

2010-05-05

354

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

355

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

356

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

357

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

358

Transhepatic portal sampling for preoperative localization of insulinomas.  

PubMed

The data of 72 patients with pancreatic insulinomas were analyzed. Twenty-one were obtained from personal experience and 51 from a review of the literature. In all instances, detailed information about insulin levels in the portal tree as obtained by means of a transhepatic portal sampling (THPS) and localization of the tumor as found during the surgical procedure was available. Five different criteria were compared for defining the peak insulin concentrations regarded as indicative of tumor localization: 1, peak above 500 milliunits per liter; 2, peak above 200 milliunits per liter; 3, peak 2.5 times higher than the lowest portal value; 4, peak 2.3 time higher than the distal mesenteric value, and 5, peak higher than mean portal concentration plus or minus 2 standard deviation. Criterion 5, associated with sample numbers larger than 15 and catheterization of the cephalic veins, provided the best results for obtaining valuable information from THPS. PMID:3037711

Pedrazzoli, S; Pasquali, C; Miotto, D; Feltrin, G P; Petrin, P

1987-08-01

359

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. PMID:19142989

Brunt, Elizabeth M.; Kleiner, David E.; Wilson, Laura A.; Unalp, Aynur; Behling, Cynthia E.; Lavine, Joel E.; Neuschwander-Tetri, Brent A.

2009-01-01

360

Successful endovascular management of postoperative arterio portal fistula.  

PubMed

Arterioportal fistulas are rare and mostly a result of late complication of gastric and biliary surgery. Surgical excision has been the therapy of reference. Endovascular treatment is emerging as a real alternative to surgery. The present study reports a case of postsurgical arterioportal fistula involving the gastroduodenal artery, the cause of portal hypertension, which was successfully treated by transarterial embolization using embospheres. Portal hypertension improved dramatically. PMID:21353459

Bouziane, Zakariyae; Ghissassi, Badr; Bouayad, Mohammed; Sefiani, Yasser; Lekehal, Brahim; El Mesnaoui, Abbes; Bensaid, Younes

2011-04-01

361

2. West portal of Tunnel 3, oblique view to northnorthwest, ...  

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

2. West portal of Tunnel 3, oblique view to north-northwest, 135mm lens. Note the simple concrete portal face and wingwalls, characteristic of the later (1923-27) period of construction on the Natron Cutoff. Note also the extreme surface spalling of the concrete, evidence of the severe freeze-thaw cycle at this elevation. - Southern Pacific Railroad Natron Cutoff, Tunnel 3, Milepost 537.77, Odell Lake, Klamath County, OR

362

Preoperative portal vein embolization using an amplatzer vascular plug  

Microsoft Academic Search

The purpose was to evaluate the safety and efficacy of preoperative portal vein embolization (PVE) using an Amplatzer vascular\\u000a plug (AVP). Forty-one patients who underwent PVE using gelatin sponge particles and the AVP were enrolled. The right portal\\u000a branches were embolized using gelatin sponges (1–8 mm3) through a 5-F catheter, and the AVP was deployed at the first- or second-order right

Hyunkyung Yoo; Gi-Young Ko; Dong Il Gwon; Jin-Hyoung Kim; Hyun-Ki Yoon; Kyu-Bo Sung; Namguk Kim; Jeongjin Lee

2009-01-01

363

Prevalence of autonomic dysfunction in cirrhotic and noncirrhotic portal hypertension  

Microsoft Academic Search

OBJECTIVE:Autonomic dysfunction is common in patients with cirrhosis of the liver, but more so in patients with decompensated state, and is associated with increased mortality. We evaluated the presence and extent of autonomic dysfunction in patients with extrahepatic portal venous obstruction (EHPVO) and noncirrhotic portal fibrosis (NCPF), diseases with relatively preserved liver functions.METHODS:Heart rate variability in response to standing, deep

Manisha Rangari; S. Sinha; Dharmesh Kapoor; Jagdish C. Mohan; Shiv K. Sarin

2002-01-01

364

Intestinal microvascular adaptation to chronic portal hypertension in the rat.  

PubMed

Microvascular pressures, diameters, and flow velocities were measured in the small intestine of rats with chronic stenosis of the portal vein. Ten days after portal vein stenosis, portal venous pressure increased (13.8 +/- 0.4 mmHg vs, 7.3 +/- 0.5 mmHg; p less than 0.05) whereas systemic arterial pressure decreased (94.2 +/- 2.0 mmHg vs. 106.5 +/- 1.6 mmHg; p less than 0.05). Red blood cell centerline velocity, measured in first-order arterioles, was significantly higher in portal hypertensive rats (24.3 +/- 1.2 mm/s vs. 19.6 +/- 1.3 mm/s), yet there was no significant change in the diameters of these vessels. Microvascular pressures and diameters of first- and second-order arterioles were not different between control and portal hypertensive rats. However, both pressure (34.3 +/- 2.7 mmHg vs. 28.0 +/- 1.8 mmHg) and diameter (30.4 +/- 0.6 microns vs. 21.4 +/- 2.1 microns) were significantly increased in the third-order arterioles of portal hypertensive rats. A consistent elevation in pressure was observed throughout the distal segments (capillaries to first-order venules) of the intestinal microcirculation of portal hypertensive rats. The results of these studies indicate that the increased intestinal vascular pressures associated with chronic portal hypertension result from a combination of reduced arteriolar resistance and venous congestion. PMID:3335318

Benoit, J N; Granger, D N

1988-02-01

365

Automating the Construction of Internet Portals with Machine Learning  

Microsoft Academic Search

Internet portals are growing in popularity because they gather content from the Web and organize it for easy access, retrieval and search. For example, www.campsearch.com allows complex queries by age-group, size, location and cost over summer camps. This functionality is not possible with general, Web-wide search engines. Unfortunately these portals are dicult and time-consuming to maintain. This paper proposes the

Andrew Mccallum; Kamal Nigam; Jason Rennie; Kristie Seymore

2000-01-01

366

1. East portal of Tunnel 4, view to west with ...  

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

1. East portal of Tunnel 4, view to west with east portal of Tunnel 38 (HAER CA-211) visible in distance, 135mm lens with electronic flash fill. This tunnel was photographed to provide context, because even though somewhat enlarged, it illustrates the nature of the unlined hard rock tunnels typical of the original Central Pacific construction in 1868. - Central Pacific Transcontinental Railroad, Tunnel No. 4, Milepost 180.95, Cisco, Placer County, CA

367

8. Detail, east portal of Tunnel 41 inside Snowshed 33, ...  

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

8. Detail, east portal of Tunnel 41 inside Snowshed 33, view to west-northwest, 135mm lens with electronic flash fill. The tiny white dot visible in the darkness of the tunnel is the west portal, two miles distant. The heavy steel beams carrying the concrete roof panels of the snowshed appear to be reused bridge girders. - Central Pacific Transcontinental Railroad, Tunnel No. 41, Milepost 193.3, Donner, Placer County, CA

368

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. PMID:21262921

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

2011-01-01

369

The Paleontology Portal: An online resource meeting the needs a spectrum of learners  

NASA Astrophysics Data System (ADS)

The Paleontology Portal website provides a central, interactive entry point to high-quality North American paleontology resources on the Internet for multiple audiences: the research community, government and industry, K-16 students, and the general public. The Portal successfully blends research and education, pulling together information with reviewed and annotated website links for a wide variety of informal learners. Using web-based technology and relational databases, users can explore an interactive map and associated stratigraphic column to access information about particular geographic regions, geologic time periods, depositional environments, and representative taxa. Users are also able to search multiple museum collection databases using a single query form of their own design. Other features include highlights of famous fossil sites and assemblages and a fossil image gallery. Throughout the site, users find images and links to information specific to each time period or geographic region, including current research projects and publications, websites, on-line exhibits and educational materials, and information on collecting fossils. The next phase of development will target the development of resource modules on topics such as collection management and fossil preparation, appropriate for users ranging from the general public to professional paleontologists. Another initiative includes developing methods of personalizing the Portal to support exhibits at museums and other venues on geological history and paleontology. The Paleontology Portal, built by the UC Museum of Paleontology, is a joint project of the Society of Vertebrate Paleontology, the Paleontological Society, and the US Geological Survey, in collaboration with the Paleontological Research Institution, the Fort Worth Museum of Science and History, and the Denver Museum of Nature and Science, which serve as hubs for the project. Paleoportal serves as an effective model in two aspects: (1) providing access to a spectrum of reviewed resources from a single starting interface that enables users from novice to professional to access background-appropriate information, and (2) involvement of a wide range of stakeholders (professional societies, universities and museums, and individuals) in both concept development and management. The project is funded by the National Science Foundation under award no. 0234594

Lindberg, D.; Scotchmoor, J. G.

2005-12-01

370

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

371

Eversion thromboendovenectomy in organized portal vein thrombosis during liver transplantation.  

PubMed

Portal thrombosis is no longer considered a contraindication for transplantation because of the technical experience acquired in the field of liver transplantation and the development of various surgical techniques. All the same, the results obtained in portal thrombosis patients are at times suboptimal, and the surgical technique used (thromboendovenectomy or veno-venous bypass) is also controversial. Between May 1988 and December 2001, 455 liver transplants were performed, of which 32 (7%) presented portal vein thrombosis. Of these, eight belonged to the first 227 transplants (group I), and 24 to the other 228 (group II). Of the 32 cases with portal thrombosis, 20 (62%) were type Ib, seven (22%) type II/III and five (16%) type IV. Twenty-two were males (69%), with a mean age of 50 yr (range: 30-70 yr); the thrombosis in all cases developed over a cirrhotic liver: 15 cases of an ethanolic origin, 11 because of hepatitis C virus, two cases of autoimmune aetiology, one case of primary biliary cirrhosis, one case because of hepatitis B virus and two cases of a cryptogenic origin. Five cases had a history of surgical treatment for portal hypertension. The surgical method in all cases consisted of an eversion thromboendovenectomy (ETEV) under direct visual guidance, with occlusion of the portal flow using a Fogarty balloon. Once re-canalization was achieved, we performed local heparinization and end-to-end portal anastomosis. In no case was systemic post-operative heparinization performed. In the 32 cases in which thrombectomy was attempted it was achieved in 31 of them (96%), failing only in a case of type IV thrombosis, which was resolved by portal arterialization. Of the 31 successful cases, only one with type IV thrombosis re-thrombosed. The 5-yr survival rate of the patients in the series was 69%, with 10 patients dying, of whom only two from causes related to the thrombosis and the thrombosis treatment, both with type IV thrombosis. The ideal treatment for portal thrombosis during liver transplantation is controversial and depends on its extension and the experience of the surgeon. In our experience, ETEV resolves most thromboses (types I, II and III), but management of type IV, which occasionally can be treated with this technique, may require more complex procedures such as bypass, portal arterialization or cavoportal haemitransposition. PMID:15108774

Robles, Ricardo; Fernandez, Juan Angel; Hernández, Quiteria; Marín, Caridad; Ramírez, Pablo; Sánchez-Bueno, Francisco; Luján, Juan Antonio; Rodríguez, José Manuel; Acosta, Francisco; Parrilla, Pascual

2004-02-01

372

Absent portal vein bifurcation: a rare variant and its clinical significance  

PubMed Central

Portal vein branching anomaly occurs due to aberration of normal anastomotic patterns and involution of vitelline veins during development of portal vein. Anatomical knowledge of portal vein and its branching pattern is important for hepatobiliary surgeon and gastrointestinal intervention radiologist. We are reporting a case of absence of portal vein bifurcation showing single main intrahepatic portal vein with gradual decreasing caliber distally, in a young female patient on contrast-enhanced computed tomography study of abdomen. Few cases of absence of portal bifurcation have been reported in literature so far. PMID:25276482

Kumar Panda, Sitansu; Bahinipati, Pravakar

2014-01-01

373

Absent portal vein bifurcation: a rare variant and its clinical significance.  

PubMed

Portal vein branching anomaly occurs due to aberration of normal anastomotic patterns and involution of vitelline veins during development of portal vein. Anatomical knowledge of portal vein and its branching pattern is important for hepatobiliary surgeon and gastrointestinal intervention radiologist. We are reporting a case of absence of portal vein bifurcation showing single main intrahepatic portal vein with gradual decreasing caliber distally, in a young female patient on contrast-enhanced computed tomography study of abdomen. Few cases of absence of portal bifurcation have been reported in literature so far. PMID:25276482

Sahoo, Ranjan Kumar; Kumar Panda, Sitansu; Bahinipati, Pravakar

2014-09-01

374

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

375

California Environmental Education Interagency Network (CEEIN)  

NSDL National Science Digital Library

CEEIN is a consortium of environmental educators representing California state departments, boards, and commissions whose responsiblity is to protect California's environment. This portal provides links to California state agencies that provide education/outreach services or post educational materials. The agencies include the California Department of Education, California Environmental Protection Agency, Water Resources Control Board, Coastal Commission, Department of Fish and Game, and many others.

2004-12-10

376

Adrenal Dysfunction in Portal Hypertensive Rats with Acute Hemorrhage  

PubMed Central

Nitric oxide (NO) participates in shock and poorer portal hypotensive effect to vasoconstrictors in portal hypertension with hemorrhage, the so-called splanchnic hyposensitivity. Relative adrenal insufficiency accompanies hemorrhagic shock and is found in liver disease, the ‘hepatoadrenal syndrome’, but the relevant interactions remain unsettled. Portal hypertensive rats were induced by partial portal vein ligation (PVL). Experiments were performed on the 14th day post PVL: (I) ACTH stimulation test for rats without or with hemorrhage; (II) Glypressin response (mean arterial pressure, MAP; portal pressure, PP) in rats (a) without hemorrhage or with hemorrhage, injected with (b) distilled water (DW), (c) dexamethasone 3 mg/kg; (III) To survey the dose-dependent effects of glucocorticoid without being confounded by endogenous adrenal hormone, glypressin response was surveyed in PVL rats with adrenalectomy: (a) without hemorrhage or with hemorrhage, injected with (b) DW; (c) dexamethasone 3 mg/kg; (d) dexamethasone 5 mg/kg. Plasma tumor necrosis factor-? (TNF-?) concentrations and abdominal aorta (AA), superior mesenteric artery (SMA) NO synthases (NOS) mRNA expressions were determined. The results showed that ACTH induced corticosterone release similarly in PVL rats with or without hemorrhage. In bleeding PVL rats, dexamethasone (1) down-regulated AA NOS and enhanced glypressin-induced MAP elevation; (2) did not influence glypressin-induced PP reduction; (3) reduced TNF-?. In bleeding PVL and adrenalectomized rats, high-dose dexamethasone (1) down-regulated AA/SMA NOS; (2) enhanced glypressin-induced MAP elevation and PP reduction; (3) reduced TNF-?. In conclusion, bleeding portal hypertensive rats failed to enhance corticosterone release, suggesting a relative adrenal insufficiency. High-dose dexamethasone reversed systemic hypotension and splanchnic hyporesponsiveness to glypressin in adrenalectomized PVL rats accompanied by TNF-? and NOS down-regulation, suggesting the importance of adequate adrenocorticoid supplement in portal hypertension with hemorrhage and adrenal dysfunction. PMID:24633079

Lee, Fa-Yauh; Wang, Sun-Sang; Lin, Han-Chieh; Lee, Shou-Dong

2014-01-01

377

Adrenal dysfunction in portal hypertensive rats with acute hemorrhage.  

PubMed

Nitric oxide (NO) participates in shock and poorer portal hypotensive effect to vasoconstrictors in portal hypertension with hemorrhage, the so-called splanchnic hyposensitivity. Relative adrenal insufficiency accompanies hemorrhagic shock and is found in liver disease, the 'hepatoadrenal syndrome', but the relevant interactions remain unsettled. Portal hypertensive rats were induced by partial portal vein ligation (PVL). Experiments were performed on the 14th day post PVL: (I) ACTH stimulation test for rats without or with hemorrhage; (II) Glypressin response (mean arterial pressure, MAP; portal pressure, PP) in rats (a) without hemorrhage or with hemorrhage, injected with (b) distilled water (DW), (c) dexamethasone 3 mg/kg; (III) To survey the dose-dependent effects of glucocorticoid without being confounded by endogenous adrenal hormone, glypressin response was surveyed in PVL rats with adrenalectomy: (a) without hemorrhage or with hemorrhage, injected with (b) DW; (c) dexamethasone 3 mg/kg; (d) dexamethasone 5 mg/kg. Plasma tumor necrosis factor-? (TNF-?) concentrations and abdominal aorta (AA), superior mesenteric artery (SMA) NO synthases (NOS) mRNA expressions were determined. The results showed that ACTH induced corticosterone release similarly in PVL rats with or without hemorrhage. In bleeding PVL rats, dexamethasone (1) down-regulated AA NOS and enhanced glypressin-induced MAP elevation; (2) did not influence glypressin-induced PP reduction; (3) reduced TNF-?. In bleeding PVL and adrenalectomized rats, high-dose dexamethasone (1) down-regulated AA/SMA NOS; (2) enhanced glypressin-induced MAP elevation and PP reduction; (3) reduced TNF-?. In conclusion, bleeding portal hypertensive rats failed to enhance corticosterone release, suggesting a relative adrenal insufficiency. High-dose dexamethasone reversed systemic hypotension and splanchnic hyporesponsiveness to glypressin in adrenalectomized PVL rats accompanied by TNF-? and NOS down-regulation, suggesting the importance of adequate adrenocorticoid supplement in portal hypertension with hemorrhage and adrenal dysfunction. PMID:24633079

Lee, Fa-Yauh; Wang, Sun-Sang; Tsai, Ming-Hung; Huang, Hui-Chun; Lin, Han-Chieh; Lee, Shou-Dong

2014-01-01

378

GCMD Portals for Focused Access to Earth and Climate Data  

NASA Astrophysics Data System (ADS)

Are you finding the data you need? Are you overwhelmed by too much data and not enough direction as to what is the right data for you? Is Google still not getting you to the data? With recent movies portraying climate change disasters, scientists need to be able to easily find available Earth, solar and climate data. Locating the vast amount of Earth science data and tools available today, can be difficult for users. NASA's Global Change Master Directory (GCMD) has a diverse collection of metadata describing data and tools from the Earth's core to solar interactions and their influences on climate and life. With over 15,000 metadata records in the GCMD database users may still feel the task of finding the right data daunting. The GCMD has a solution: customized access to subsets of the database content through "portals". Portals are a virtual subsets of the metadata found in the GCMD, which allow users to view smaller, related groups of metadata. Some portals are representative of a specific scientific community or project, such as the Antarctic Master Directory (AMD), which represents an international collaboration conducting scientific research in Antarctica. Users looking specifically for models or model output data may find the Model portal useful. Other portals such as the Sun-Earth Interaction portal, are based on an Earth science theme related to Sun's activity affects the Earth's environment. Portals have made it easier for organizations to maintain and document their data in one place without duplicating the effort to create another online directory.

Weir, H. M.; Leicester, S. M.

2004-12-01

379

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. PMID:24473726

CORREA, Camila de Castro; PAULETO, Adriana Regina Colombo; FERRARI, Deborah Viviane; BERRETIN-FELIX, Giedre

2013-01-01

380

Portosystemic shunting in portal hypertension: evaluation with portal scintigraphy with transrectally administered I-123 IMP  

SciTech Connect

Portosystemic shunting was evaluated with rectal administration of iodine-123 iodoamphetamine (IMP) in seven patients without liver disease and 53 patients with liver cirrhosis. IMP (2-3 mCi (74-111 MBq)) was administered to the rectum through a catheter. Images of the chest and abdomen were obtained for up to 60 minutes with a scintillation camera interfaced with a computer. In all patients, images of the liver and/or lungs were observed within 5-10 minutes and became clear with time. In patients without liver disease, only liver images could be obtained, whereas the lung was visualized with or without the liver in all patients with liver cirrhosis. The portosystemic shunt index was calculated by dividing counts of lungs by counts of liver and lung. These values were significantly higher in liver cirrhosis, especially in the decompensated stage. Transrectal portal scintigraphy with IMP appears to be a useful method for noninvasive and quantitative evaluation of portosystemic shunting in portal hypertension.

Kashiwagi, T.; Azuma, M.; Ikawa, T.; Takehara, T.; Matsuda, H.; Yoshioka, H.; Mitsutani, N.; Koizumi, T.; Kimura, K.

1988-10-01

381

Evolution of portal hypertension and mechanisms involved in its maintenance in a rat model  

SciTech Connect

In rats with portal hypertension induced by partial ligation of the portal vein, the authors have recently demonstrated an increased portal venous inflow that becomes an important factor in the maintenance of portal hypertension. The sequence of events that leads into this circulatory disarray is unknown. The authors evaluated chronologically the chain of hemodynamic changes that occurred after portal hypertension was induced by partial ligation of the portal vein. In this model it is possible to follow, from the initiation of the portal-hypertensive state, the interaction between blood flow and resistance in the portal system as well as the relation between the development of portal-systemic shunting and the elevated portal venous inflow. The study was performed in 45 portal-hypertensive rats and in 29 sham-operated rats. Blood flow and portal-systemic shunting were measured by radioactive microsphere techniques. The constriction of the portal vein was immediately followed by a resistance-induced portal hypertension characterized by increased portal resistance (9.78 +/- 0.89 vs. 4.18 +/- 0.71 dyn X s X cm-5 X 10(4), mean +/- SE, P less than 0.01), increased portal pressure (17.7 +/- 0.9 vs. 9.5 +/- 0.6 mmHg, P less than 0.001), and decreased portal venous inflow (3.93 +/- 0.26 vs. 6.82 +/- 0.49 ml X min-1 X 100 g body wt-1, P less than 0.001).

Sikuler, E.; Kravetz, D.; Groszmann, R.J.

1985-06-01

382

Reliability in endoscopic diagnosis of portal hypertensive gastropathy  

PubMed Central

AIM: To analyze reliability among endoscopists in diagnosing portal hypertensive gastropathy (PHG) and to determine which criteria from the most utilized classifications are the most suitable. METHODS: From January to July 2009, in an academic quaternary referral center at Santa Casa of São Paulo Endoscopy Service, Brazil, we performed this single-center prospective study. In this period, we included 100 patients, including 50 sequential patients who had portal hypertension of various etiologies; who were previously diagnosed based on clinical, laboratory and imaging exams; and who presented with esophageal varices. In addition, our study included 50 sequential patients who had dyspeptic symptoms and were referred for upper digestive endoscopy without portal hypertension. All subjects underwent upper digestive endoscopy, and the images of the exam were digitally recorded. Five endoscopists with more than 15 years of experience answered an electronic questionnaire, which included endoscopic criteria from the 3 most commonly used Portal Hypertensive Gastropathy classifications (McCormack, NIEC and Baveno) and the presence of elevated or flat antral erosive gastritis. All five endoscopists were blinded to the patients’ clinical information, and all images of varices were deliberately excluded for the analysis. RESULTS: The three most common etiologies of portal hypertension were schistosomiasis (36%), alcoholic cirrhosis (20%) and viral cirrhosis (14%). Of the 50 patients with portal hypertension, 84% were Child A, 12% were Child B, 4% were Child C, 64% exhibited previous variceal bleeding and 66% were previously endoscopic treated. The endoscopic parameters, presence or absence of mosaic-like pattern, red point lesions and cherry-red spots were associated with high inter-observer reliability and high specificity for diagnosing Portal Hypertensive Gastropathy. Sensitivity, specificity and reliability for the diagnosis of PHG (%) were as follows: mosaic-like pattern (100; 92.21; High); fine pink speckling (56; 76.62; Unsatisfactory); superficial reddening (69.57; 66.23; Unsatisfactory); red-point lesions (47.83; 90.91; High); cherry-red spots (39.13; 96.10; High); isolated red marks (43.48; 88.31; High); and confluent red marks (21.74; 100; Unsatisfactory). Antral elevated erosive gastritis exhibited high reliability and high specificity with respect to the presence of portal hypertension (92%) and the diagnosis of portal hypertensive gastropathy (88.31%). CONCLUSION: The most suitable endoscopic criteria for the diagnosis of PHG were mosaic-like pattern, red-point lesions and cherry-red spots with no subdivisions, which were associated with a high rate of inter-observer reliability. PMID:23858376

de Macedo, George Fred Soares; Ferreira, Fabio Goncalves; Ribeiro, Mauricio Alves; Szutan, Luiz Arnaldo; Assef, Mauricio Saab; Rossini, Lucio Giovanni Battista

2013-01-01

383

Climate Change Education .org  

NSDL National Science Digital Library

Climate Change Education .org is a volunteer organization made up primarily of docents and interns at California science centers and museums, along with students, scientists, and staff at the University of California, Berkeley. The organization specializes in hands-on science demonstrations relevant to climate change and other topics, and the encouragement of partnerships in education. The group's two portal web sites, Climate Change Education .org and Global Warming California .net, direct visitors to hundreds of links to great resources on subjects of interest.

384

Portal hypertensive biliopathy: A single center experience and literature review.  

PubMed

Portal hypertensive biliopathy (PHB) is characterized by anatomical and functional abnormalities of the intrahepatic, extrahepatic and pancreatic ducts, in patients with portal hypertension associated to extrahepatic portal vein obstruction and less frequently to cirrhosis. These morphological changes, consisting in dilatation and stenosis of the biliary tree, are due to extensive venous collaterals occurring in an attempt to decompress the portal venous blockage. It is usually asymptomatic until it progresses to more advanced stages with cholestasis, jaundice, biliary sludge, gallstones, cholangitis and finally biliary cirrhosis. Imaging modalities of the biliary tree such as Doppler ultrasound, computed tomography, magnetic resonance cholangiopancreatography and endoscopic retrograde cholangiopancreatography are essential to establish the diagnosis and the need of therapeutical interventions. Once the diagnosis is established, treatment with ursodesoxycholic acid seems to be beneficial. Decompression of the biliary tree to dilate, remove stones or implant biliary prosthesis by endoscopic or surgical procedures (hepato-yeyunostomy) usually resolves the cholestatic picture and prevents septic complications. The ideal treatment is the decompression of the portal system, with transjugular intrahepatic porto-systemic shunt or a surgical porto-systemic shunt. Unfortunately, few patients will be candidates for these procedures due to the extension of the thrombotic process. The purpose of this paper is to report the first 3 cases of PHB seen in a Colombian center and to review the literature. PMID:23556047

Suárez, Vanessa; Puerta, Andrés; Santos, Luisa Fernanda; Pérez, Juan Manuel; Varón, Adriana; Botero, Rafael Claudino

2013-03-27

385

Portal hypertensive biliopathy: A single center experience and literature review  

PubMed Central

Portal hypertensive biliopathy (PHB) is characterized by anatomical and functional abnormalities of the intrahepatic, extrahepatic and pancreatic ducts, in patients with portal hypertension associated to extrahepatic portal vein obstruction and less frequently to cirrhosis. These morphological changes, consisting in dilatation and stenosis of the biliary tree, are due to extensive venous collaterals occurring in an attempt to decompress the portal venous blockage. It is usually asymptomatic until it progresses to more advanced stages with cholestasis, jaundice, biliary sludge, gallstones, cholangitis and finally biliary cirrhosis. Imaging modalities of the biliary tree such as Doppler ultrasound, computed tomography, magnetic resonance cholangiopancreatography and endoscopic retrograde cholangiopancreatography are essential to establish the diagnosis and the need of therapeutical interventions. Once the diagnosis is established, treatment with ursodesoxycholic acid seems to be beneficial. Decompression of the biliary tree to dilate, remove stones or implant biliary prosthesis by endoscopic or surgical procedures (hepato-yeyunostomy) usually resolves the cholestatic picture and prevents septic complications. The ideal treatment is the decompression of the portal system, with transjugular intrahepatic porto-systemic shunt or a surgical porto-systemic shunt. Unfortunately, few patients will be candidates for these procedures due to the extension of the thrombotic process. The purpose of this paper is to report the first 3 cases of PHB seen in a Colombian center and to review the literature. PMID:23556047

Suarez, Vanessa; Puerta, Andres; Santos, Luisa Fernanda; Perez, Juan Manuel; Varon, Adriana; Botero, Rafael Claudino

2013-01-01

386

Aspiration and Injection of the Knee Joint: Approach Portal  

PubMed Central

Aspiration and injection of the knee joint is a commonly performed medical procedure. Injection of corticosteroid for the treatment of osteoarthritis is the most common reason for knee joint injection, and is performed as an office procedure. Debate exists among practitioners as to the 'best' approach portal for knee injection. This paper examines the various approach portals for injection and/or aspiration of the knee joint, as well as the accuracy of each approach. Searches were made of electronic databases, and appropriate papers were identified and hand-searched. Although there is some evidence that particular approach portals may be more efficacious in the presence of specific knee joint pathologies, generally, in experienced hands, it is of no clinical consequence as to which approach portal is utilised for aspiration or injection of the knee joint. No approach portal is 100% accurate, and the accuracy of injection of the knee joint may be enhanced by the use of techniques such as ultrasound. Practitioners are reminded that they should continuously refine and practice their preferred technique. Knee joint aspiration and injection is a common, simple, and generally safe office procedure. PMID:24639940

2014-01-01

387

Genomics Portals: integrative web-platform for mining genomics data  

PubMed Central

Background A large amount of experimental data generated by modern high-throughput technologies is available through various public repositories. Our knowledge about molecular interaction networks, functional biological pathways and transcriptional regulatory modules is rapidly expanding, and is being organized in lists of functionally related genes. Jointly, these two sources of information hold a tremendous potential for gaining new insights into functioning of living systems. Results Genomics Portals platform integrates access to an extensive knowledge base and a large database of human, mouse, and rat genomics data with basic analytical visualization tools. It provides the context for analyzing and interpreting new experimental data and the tool for effective mining of a large number of publicly available genomics datasets stored in the back-end databases. The uniqueness of this platform lies in the volume and the diversity of genomics data that can be accessed and analyzed (gene expression, ChIP-chip, ChIP-seq, epigenomics, computationally predicted binding sites, etc), and the integration with an extensive knowledge base that can be used in such analysis. Conclusion The integrated access to primary genomics data, functional knowledge and analytical tools makes Genomics Portals platform a unique tool for interpreting results of new genomics experiments and for mining the vast amount of data stored in the Genomics Portals backend databases. Genomics Portals can be accessed and used freely at http://GenomicsPortals.org. PMID:20070909

2010-01-01

388

Generic XML-based framework for metadata portals  

NASA Astrophysics Data System (ADS)

We present a generic and flexible framework for building geoscientific metadata portals independent of content standards for metadata and protocols. Data can be harvested with commonly used protocols (e.g., Open Archives Initiative Protocol for Metadata Harvesting) and metadata standards like DIF or ISO 19115. The new Java-based portal software supports any XML encoding and makes metadata searchable through Apache Lucene. Software administrators are free to define searchable fields independent of their type using XPath. In addition, by extending the full-text search engine (FTS) Apache Lucene, we have significantly improved queries for numerical and date/time ranges by supplying a new trie-based algorithm, thus, enabling high-performance space/time retrievals in FTS-based geo portals. The harvested metadata are stored in separate indexes, which makes it possible to combine these into different portals. The portal-specific Java API and web service interface is highly flexible and supports custom front-ends for users, provides automatic query completion (AJAX), and dynamic visualization with conventional mapping tools. The software has been made freely available through the open source concept.

Schindler, Uwe; Diepenbroek, Michael

2008-12-01

389

Future therapy of portal hypertension in liver cirrhosis - a guess  

PubMed Central

In patients with chronic liver disease, portal hypertension is driven by progressive fibrosis and intrahepatic vasoconstriction. Interruption of the initiating and perpetuating etiology—mostly leading to necroinflammation—is possible for several underlying causes, such as autoimmune hepatitis, hepatitis B virus (HBV) infection, and most recently hepatitis C virus (HCV) infection. Thus, in the long run, lifestyle-related liver damage due to chronic alcoholism or morbid obesity will remain the main factor leading to portal hypertension. Both causes are probably more easily countered by socioeconomic measures than by individual approaches. If chronic liver injury supporting fibrogenesis and portal hypertension cannot be interrupted, a wide variety of tools are available to modulate and reduce intrahepatic resistance and therewith portal hypertension. Many of these have been evaluated in animal models. Also, some well-established drugs, which are used in humans for other indications (for example, statins), are promising if applied early and concomitantly to standard therapy. In the future, more individually tailored strategies must also be considered in line with the spectrum of portal hypertensive complications and risk factors defined by high-throughput analysis of the patient’s genome, transcriptome, metabolome, or microbiome. PMID:25374673

Trebicka, Jonel

2014-01-01

390

A Look at Success for Data Portals (Invited)  

NASA Astrophysics Data System (ADS)

As a member of Esri's Geoportal Server team for the past six years, I have been involved in hundreds of customer portal, geoportal, and spatial data infrastructure implementations. Our team's goal for each implementation is - of course- for it to be successful. A successful data portal can be defined by a number of indicators. The foremost measure of success is that the target end users are able to easily find and access data that meets their needs. Other indicators are effectiveness of the user interface, interoperability mechanisms to enhance discoverability and usability across contexts, compliance with data sharing mandates, extendibility/portability of the system as technology evolves, and staff expertise to maintain the system. Further, some data portals have not only been successful by these measures but have also challenged and expanded the state of the art in the areas of discovery, access, and managing data. This talk will address models, principles, and best practices for deploying data portals that are successful by these measures, identify examples of excellence in the field, and discuss upcoming advances in portal technology to support scientists in sharing their work.

White, C. E.

2013-12-01

391

Launching Discovery through a Digital Library Portal: SIOExplorer  

NASA Astrophysics Data System (ADS)

The launching of an oceanographic expedition has its own brand of excitement, with the sound of the main engines firing up, and the lifting of the gangway in a foreign port, as the team of scientists and crew sets out for a month at sea with only the resources they have aboard. Although this adventure is broadly appealing, very few have the privilege of actually joining an expedition. With the "SIOExplorer" family of projects we are now beginning to open this experience across cyberspace to a wide range of students and teachers. What began two years ago as an effort to stabilize the Scripps Institution of Oceanography (SIO) data archives from more than 700 cruises going back 50 years, has now become an operational component of the National Science Digital Library (NSDL; www.nsdl.org), complete with thousands of historic photographs, full text documents and 3D visualization experiences. Our initial emphasis has been on marine geology and geophysics, in particular multibeam seafloor mapping, including 2 terabytes of digital objects. The IT architecture implemented at the San Diego Supercomputer Center (SDSC) streamlines the integration of additional projects in other disciplines with a suite of metadata management and collection building tools for "arbitrary digital objects." The "CruiseViewer" Java application is the primary portal to the digital library, providing a graphical user and display interface, the interface with the metadata database, and the interface with the SDSC "Storage Resource Broker" for long-term bulk distributed data storage management. It presents the user with a view of the available objects, overlaid on a global topography map. Geospatial objects can be selected interactively, and searches can be constrained by keywords. Metadata can be browsed and objects can be viewed onscreen or downloaded for further analysis, with automatic proprietary-hold request management. These efforts will be put to the test with national teacher workshops in the next two summers. Teachers, in collaboration with SIO-graduate students, will prepare and field-test learning-experience modules that explore concepts from plate tectonics theory for classroom and web use. Students will design their own personal voyages of discovery through our digital archives, promoting inquiry-based learning tailored to each individual. Future education and outreach efforts will include 1) developing a global registry of seafloor research or education projects (academic, industry, government), allowing at least a URL and a contact for further information 2) adding new collections, including dredged rocks and cores, 3) interoperating with other international data collections, 4) interacting with education and outreach projects such as the California Center for Ocean Science Education Excellence (COSEE), 5) continued testing of a real-time stand-alone digital library on a laptop shipboard acquisition system, 6) enhanced use of real-time Real-time Observatories, Applications, and Data management Network (ROADnet) satellite links to SIO vessels, and 7) continued construction of a series of museum exhibits based on digital terrain models. Now that SIOExplorer has become operational, we look forward to collaborating with other institutions for data and technology exchange, as well as for education and outreach opportunities. Support is provided by NSF NSDL, ITR and OCE programs, as well as by UCSD funds.

Miller, S. P.; Staudigel, H.; Johnson, C.; McSherry, K.; Clark, D.; Peckman, U.; Helly, J.; Sutton, D.; Chase, A.; Schottlaender, B. E.; Day, D.; Helly, M.

2003-12-01

392

Structure-centered portal for child psychiatry research  

PubMed Central

The real world needs of the clinical community require a domain-specific solution to integrate disparate information available from various web-based resources for data, materials, and tools into routine clinical and clinical research setting. We present a child-psychiatry oriented portal as an effort to deliver a knowledge environment wrapper that provides organization and integration of multiple information and data sources. Organized semantically by resource context, the portal groups information sources by context type, and permits the user to interactively “narrow” or “broaden” the scope of the information resources that are available and relevant to the specific context. The overall objective of the portal is to bring information from multiple complex resources into a simple single uniform framework and present it to the user in a single window format. PMID:24817850

Rane, Pallavi; Haselgrove, Christian; Hodge, Steven M.; Frazier, Jean A.; Kennedy, David N.

2014-01-01

393

AVISO+, the new reference web portal for altimetry  

NASA Astrophysics Data System (ADS)

AVISO is the showcase of CNES activities in altimetry. Indeed, the altimetric products processed by the SALP service from CNES (Service d'Altimetrie et de Localisation Precise) are disseminated via AVISO portal since 1995. In recent years, AVISO became a reference in the international oceanographic and altimetry communities, with more than 5,000 registered users in 2013. In 2014 AVISO is enlarging its applications outside the purely ocean-oriented ones, thus becoming AVISO + (www.aviso.altimetry.fr). The portal opens to new applications such as hydrology / coastal / ice. Moreover, it merges with the CTOH (French Observation Service dedicated to satellite altimetry studies) website to provide users with operational as well as demonstration products and expertise in a unique website. We present here all the novelties - new look, new functionnalities, new products, new data access service… hoping to see you soon on our brand-new altimetry portal, www.aviso.altimetry.fr!

Rosmorduc, Vinca; Bronner, Emilie; Guinle, Thierry; Maheu, Caroline; Morrow, Rosemary; Nino, Fernando; Birol, Florence

2014-05-01

394

Special Nuclear Material Portal Monitoring at the Nevada Test Site  

SciTech Connect

Prior to April 2007, acceptance and performance testing of the various Special Nuclear Material (SNM) monitoring devices at the Nevada Test Site (NTS) was performed by the Radiological Health Instrumentation department. Calibration and performance testing on the PM-700 personnel portal monitor was performed, but there was no test program for the VM-250 vehicle portal monitor. The handheld SNM monitors, the TSA model 470B, were being calibrated annually, but there was no performance test program. In April of 2007, the Material Control and Accountability Manager volunteered to take over performance testing of all SNM portal monitors at NTS in order to strengthen the program and meet U.S. Department of Energy Order requirements. This paper will discuss the following activities associated with developing a performance testing program: changing the culture, learning the systems, developing and implementing procedures, troubleshooting and repair, validating the process, physical control of equipment, acquisition of new systems, and implementing the performance test program.

DeAnn Long; Michael Murphy

2008-07-01

395

4. East portal of Tunnel 18, view to southsoutheast, 210mm ...  

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

4. East portal of Tunnel 18, view to south-southeast, 210mm lens. Compare the condition of the concrete at this portal, located some 350 feet lower than the west portal and on the sheltered north side of the pass, with that of the west portal in photo 1. - Southern Pacific Railroad Natron Cutoff, Tunnel 3, Milepost 537.77, Odell Lake, Klamath County, OR

396

Central neural activation of hyperdynamic circulation in portal hypertensive rats depends on vagal afferent nerves  

Microsoft Academic Search

Background:Hyperdynamic circulation in portal hypertensive rats depends on central neural c-fos gene expression, but how the portal hypertensive signal activates central c-fos expression remains obscure.Aim:To elucidate the afferent pathway from the gut to the central cardiovascular regulatory nuclei in portal hypertensive rats.Methods:Cervical vagus nerves and the coeliac ganglion were treated with topical capsaicin to denervate the sensory afferents. Surgical portal

H Liu; N Schuelert; J J McDougall; S S Lee

2008-01-01

397

Analysis of inherited thrombophilic mutations and natural anticoagulant deficiency in patients with idiopathic portal hypertension  

Microsoft Academic Search

Idiopathic portal hypertension (IPH) is characterized by non-cirrhotic presinusoidal intrahepatic portal hypertension. The\\u000a etiopathogenesis of the disease is poorly understood. Obliteration with microthrombosis of the small portal vein branches\\u000a may lead to lesions underlying portal hypertension. We aimed to put forward a comprehensive thrombophilic mutation profile\\u000a in IPH and its probable contribution to pathogenesis. Eleven patients and 12 controls were

Kadim Bayan; Yekta Tüzün; ?erif Y?lmaz; Naime Canoruc; Mehmet Dursun

2009-01-01

398

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.

399

Non-cirrhotic portal hypertension - Concept, diagnosis and clinical management.  

PubMed

Non-cirrhotic portal hypertension (NCPH) is mainly related to vascular disorders in the portal system, granuloma formation with periportal fibrosis or genetic alterations affecting the hepatobiliary system. For the diagnosis of the so-called idiopathic NCPH, it is essential to rule out chronic liver diseases associated with progression to cirrhosis as viral hepatitis B and C, alcoholic and non-alcoholic fatty liver, autoimmune disease, hereditary hemochromatosis, Wilson's disease as well as primary biliary cirrhosis and primary sclerosing cholagitis. This mini review will focus on the most common types of NCPH, excluding the idiopathic NCPH. Primary Budd-Chiari syndrome, characterized by obstruction of hepatic venous outflow, must be distinguished from sinusoidal obstruction syndrome, a cause of portal hypertension associated with exposure to toxic plants or therapeutic agents. Noninvasive imaging methods usually help the diagnosis of both Budd-Chiari syndrome and portal thrombosis, the later a relatively frequent cause NCPH. Clinical presentation and management of these vascular disorders are evaluated. Schistosomiasis, a worldwide spread endemic parasitic disease, may evolve to severe forms of the disease with huge spleen and gastroesophageal varices due to presinusoidal portal hypertension. Although management of acute upper gastrointestinal bleeding is similar to that of cirrhosis, prevention of rebleeding differs. Instead of portosystemic shunt procedures, the esophagogastric devascularization with splenectomy is the accepted surgical alternative. Its association with endoscopic therapy is suggested to be the best option for PH due to schistosomiasis. In conclusion, the prompt diagnosis of the disorder leading to non-cirrhotic portal hypertension is essential for its correct management. PMID:24581591

Strauss, Edna; Valla, Dominique

2014-10-01

400

[Portal and pulmonary hypertension in a patient with MCTD].  

PubMed

A 42-year-old woman with mixed connective tissue disease (MCTD) died due to the rupture of esophageal varices. The autopsy revealed fresh thrombi in the main trunk of the portal vein. Microscopic examination disclosed wide-spread periportal fibrosis and stenosis of peripheral portal veins without remodeling of hepatic lobular architecture, which was compatible to idiopathic portal hypertension (IPH). Anti-phospholipid antibody was negative. Accordingly it is likely that portal vein thrombosis developed secondary to IPH. In the literature 6 (37.5%) of 16 collagen vascular disease patients with IPH died, and three of them were due to rupture of esophageal varices. Therefore IPH should be considered to be one of the most important complications affecting its grave prognosis in patients with collagen vascular disease. The patient also had had pulmonary hypertension (PH) when the diagnosis of portal hypertension was made. In the literature we found 5 collagen vascular disease patients with both PH and IPH like this case. The most outstanding common clinical feature among these 6 patients was Raynaud's phenomenon associated with positive anti-RNP antibody. Moreover 5 of 6 cases including this case simultaneously developed both PH and IPH. The clinical course of these patients suggests there may be a common pathogenetic factor for these two lesions. A possible candidate involved in the pathogenesis of PH and IPH may be endothelin, one of the vasoactive substances, since its receptor is said to be expressed abundantly in pulmonary and portal vasculatures. However, further investigation is necessary to elucidate the mechanism of PH and IPH in collagen vascular diseases. PMID:10536483

Sekiguchi, Y; Amano, K; Takano, Y; Saito, K; Itoh, I; Tsuzaka, K; Abe, T; Takeuchi, T

1999-08-01

401

Mypage and Borger.dk - A Case Study of Two Government Service Web Portals  

Microsoft Academic Search

This case study investigates the development of national portals offering online public services to citizens. Norway and Denmark are leading the way in developing online public services for citizens. In this study the development of the citizen portals Borger.dk in Denmark and Mypage in Norway will be examined. At present, documented research on national citizen portals is limited. Comparing the

Karin Furuli; Sigrun Kongsrud

402

Surgical Access to Jejunal Veins for Local Thrombolysis and Stent Placement in Portal Vein Thrombosis  

SciTech Connect

Portal vein thrombosis is an infrequent entity, which may cause high morbidity and mortality. We report a case of portal vein thrombosis due to benign stenosis following partial pancreatoduodenectomy with segmental replacement of the portal vein by a Gore-tex graft. Using a surgical access to jenunal veins, local thrombolysis, mechanical fragmentation of thrombus, and stent placement were successfully performed.

Schellhammer, Frank, E-mail: frank.schellhammer@med.uni-duesseldorf.d [University Hospital Duesseldorf, Institute of Diagnostic Radiology (Germany); Esch, Jan Schulte am [University Hospital Duesseldorf, Department of General, Visceral and Pediatric Surgery (Germany); Hammerschlag, Sascha [University Hospital Duesseldorf, Institute of Diagnostic Radiology (Germany); Knoefel, Wolfram Trudo [University Hospital Duesseldorf, Department of General, Visceral and Pediatric Surgery (Germany); Fuerst, Guenter [University Hospital Duesseldorf, Institute of Diagnostic Radiology (Germany)

2008-07-15

403

Design and Development of a Chemistry Subject Portal at Panjab University Library, India  

ERIC Educational Resources Information Center

Purpose: This paper aims to give a brief description of some chemistry portals available worldwide, followed by a description of the chemistry portal developed for Panjab University Library, Chandigarh (India). Design/methodology/approach: A well-structured chemistry portal was designed for chemistry and its allied departments at Panjab University…

Singh, Neeraj Kumar; Mahajan, Preeti

2010-01-01

404

The new transfer student portal : understanding new transfer students' transitions to the research university  

E-print Network

On-campus Orientation The New Transfer student Portal beginsNew Transfer Student Portal tried to replicate the experiences of face-to-face advising and orientationNew Transfer Student Portal ..85 Welcome and Sign-up for On-campus Orientation.

Easterly, Douglas P.

2008-01-01

405

Hepatoportal Sclerosis as a Cause of Noncirrhotic Portal Hypertension in Patients With HIV  

Microsoft Academic Search

BACKGROUND:Hepatoportal sclerosis (HPS) is a cause of noncirrhotic portal hypertension, with patients typically presenting with variceal bleeding. It is idiopathic in nature but is felt to be due to an abnormality of the intrahepatic vasculature. HPS is characterized by varying degrees of portal fibrosis, sclerosis of portal vein branches and dilatation of sinusoidal spaces. Nodular regenerative hyperplasia (NRH), another cause

Thomas D. Schiano; Donald P. Kotler; Elena Ferran; M. Isabel Fiel

2007-01-01

406

Platelet Aggregation in Portal Hypertension and Its Modification by Ultra-Low Doses of Aspirin  

Microsoft Academic Search

Aspirin (ASA) is widely accepted as antithrombotic drug, but several reports point out that its use in ultra-low doses (ULD) has prothrombotic properties. In this study, we evaluate the effect of portal hypertension in rats on platelet aggregation in an in vivo arterial thrombosis model induced by a laser beam. Portal hypertension was produced by calibrated stenosis of the portal

Francisco X. Eizayaga; Omar Aguejouf; Philippe Belon; Christian Doutremepuich

2005-01-01

407

National Nuclear Data Center Nuclear Data Portal www.nndc.bnl.gov  

E-print Network

National Nuclear Data Center #12;Nuclear Data Portal www.nndc.bnl.gov Nuclear Data Portal New generation of nuclear data services, using modern and powerful DELL servers, Sybase relational database software, Linux operating system, and Java programming language. The Portal includes nuclear structure

Ohta, Shigemi

408

Library Subject Portals: An Investigation of Possibilities for the University of the Witwatersrand Library  

ERIC Educational Resources Information Center

Purpose: To examine and discuss the features of library portals and suggest further development of these research tools. Design/methodology/approach: The two categories of library portals (horizontal or public, and vertical) were examined to establish the characteristics of some of the portal software available in the marketplace. The study…

Ubogu, Felix N.; Kekana, Arthur; Roberts, Charl

2006-01-01

409

Anorectal varices--their frequency in cirrhotic and non-cirrhotic portal hypertension  

Microsoft Academic Search

Anorectal varices in portal hypertension have been little studied: Seventy eight per cent of 72 patients with portal hypertension had anorectal varices shown at flexible sigmoidoscopy. Significantly more patients with noncirrhotic portal hypertension had these varices than patients with cirrhosis (89% v 56%, p less than 0.01).

Y Chawla; J B Dilawari

1991-01-01

410

Bile duct stenosis due to portal cavernomas: MR portography and MR cholangiopancreatography demonstration  

Microsoft Academic Search

We report two cases of bile duct stenosis due to portal cavernomas. Smooth stenoses were seen arising from both walls of the common bile duct on magnetic resonance (MR) cholangiopancreatography. On contrast-enhanced MR portography, peribiliary tortuous vessels were evident, indicating portal cavernomas. MR imaging can evaluate the biliary tree and portal systems noninvasively and was useful for evaluating this condition.

S. Akaki; H. Kobayashi; N. Sasai; M. Tsunoda; M. Kuroda; S. Kanazawa; I. Togami; Y. Hiraki

2002-01-01

411

An electronic portal to support using information to improve healthcare.  

PubMed

The Scottish Government supports a culture of knowledge management and organisational learning for nurses, midwives and allied health professionals (NMAHP). To help facilitate this the National eHealth Programme has developed a portal, Using Information - Improving Healthcare, to enable sharing of international and national good practice in information use. The portal provides short stories of how information has been used to improve healthcare or services via text, sound bites or video, with links to resources and people connected with these examples. Evidence based user success criteria and governance arrangements ensure that the site remains a high quality resource. PMID:19592924

Strachan, Heather; Dallest, Kathy

2009-01-01

412

Pregnancy Complicated by Portal Hypertension Secondary to Biliary Atresia  

PubMed Central

Biliary atresia is a rare idiopathic neonatal cholestatic disease characterized by the destruction of both the intra- and extrahepatic biliary ducts. As the disease is progressive all cases will develop portal fibrosis, cirrhosis, and portal hypertension with the sequelae of varices, jaundice, and eventually liver failure requiring a transplant. Survival rates have improved considerably with many females living well in to be childbearing age. Due to the complexity of the disease these pregnancies are considered, high risk. We report the antenatal, intrapartum, and postpartum managements of a pregnancy complicated by biliary atresia. Furthermore, we highlight the importance of a multidisciplinary team approach in optimizing obstetric care for this high risk group. PMID:24459595

O'Sullivan, O. E.; Crosby, D.; Byrne, B.; Regan, C.

2013-01-01

413

Single-stage definitive surgical treatment for portal biliopathy.  

PubMed

The term portal biliopathy (PB) is used to describe the biliary abnormalities associated with portal hypertension. Between 5% and 30% of patients with PB develop biliary obstruction. We report on a patient with extrahepatic biliary obstruction caused by PB that was successfully managed with an intrahepatic segment 3 bypass. The traditional surgical approach for a patient with extrahepatic biliary obstruction caused by PB would be a portosystemic shunt followed by a hepaticojejenostomy if the jaundice persited. An intrahepatic segment 3 bypass provides definitive treatment ensuring biliary decompression and stone removal in a single procedure in appropriately selected patients. PMID:25216098

Bernon, Marc M; Sonderup, Mark W; Chinnery, G E; Bornman, Philippus C; Krige, Jake E J

2014-06-01

414

Advanced Millimeter-Wave Security Portal Imaging Techniques  

SciTech Connect

Millimeter-wave imaging is rapidly gaining acceptance for passenger screening at airports and other secured facilities. This paper details a number of techniques developed over the last several years including novel image reconstruction and display techniques, polarimetric imaging techniques, array switching schemes, as well as high frequency high bandwidth techniques. Implementation of some of these methods will increase the cost and complexity of the mm-wave security portal imaging systems. RF photonic methods may provide new solutions to the design and development of the sequentially switched linear mm-wave arrays that are the key element in the mm-wave portal imaging systems.

Sheen, David M.; Bernacki, Bruce E.; McMakin, Douglas L.

2012-04-01

415

2. West portal of Tunnel 23, view to the westnorthwest, ...  

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

2. West portal of Tunnel 23, view to the west-northwest, 135mm lens. Note the use of concrete face and wingwalls, with dressed stone voussoirs, wingwall coping, concrete parapet with stone belt course and coping, and rubble masonry slope protection flanking the portal. Built for the Oregon Eastern, this Southern Pacific Common Standard tunnel is contemporary with those built by different contractors for the California Northeastern at the south end of the Natron Cutoff (see Tunnel 17, HAER CA-218, and Tunnel 18, HAER CA-219). - Southern Pacific Railroad Natron Cutoff, Tunnel 23, Milepost 584.5, Westfir, Lane County, OR

416

2. West portal of Tunnel 22, view to the northwest, ...  

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

2. West portal of Tunnel 22, view to the northwest, 135mm lens. Note the use of concrete face and wingwalls, with dressed stone voussoirs, wingwall coping, concrete parapet with stone belt course and coping, and rubble masonry slope protection flanking the portal. Built for the Oregon Eastern, this Southern Pacific Common Standard tunnel is contemporary with those built by different contractors for the California Northeastern at the south end of the Natron Cutoff (see Tunnel 17, HAER CA-218, and Tunnel 18, HAER CA-219). - Southern Pacific Railroad Natron Cutoff, Tunnel 22, Milepost 581.85, Oakridge, Lane County, OR

417

Tau Portal Dark Matter models at the LHC  

E-print Network

Motivated by the Galactic Center gamma-ray excess in the Fermi-LAT data, we study the signatures of a class of tau portal dark matter (DM) models where DM particles preferentially couple to tau leptons at the LHC. We consider the constraints from the DM direct detection and investigate the sensitivity of the LHC to di-tau plus missing energy signatures. We find that the LHC with a high luminosity of 3000 fb$^{-1}$ can test the tau portal DM models with fermionic mediators in the mass range of $120\\sim450$ GeV.

Yu, Zhao-Huan; Yan, Qi-Shu; Yin, Peng-Fei

2014-01-01

418

The paracholedochal vein: a feasible option as portal inflow in living donor liver transplantation  

PubMed Central

Extensive thrombosis of the portal and splenomesenteric veins combined with cavernous transformation of the portal vein (CTPV) has been considered to be a contraindication for living donor liver transplantation (LDLT) due to technical difficulties and perioperative risks. In recent years, several surgical innovations including cavoportal hemitransposition, renoportal anastomosis, and portal arterialization have been introduced to overcome diffuse portal vein thrombosis (PVT) and CTPV, but their outcomes were unsatisfactory with significant morbidity and mortality. Herein, we report two successful cases of adult LDLT in diffuse PVT with CTPV managed using the paracholedochal vein as portal inflow to the graft. PMID:25025028

Kim, Joo Dong; Han, Young Seok

2014-01-01

419

Potential for portal detection of human chemical and biological contamination  

NASA Astrophysics Data System (ADS)

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 warm-air sheath of 50-80 liters/sec known as the human thermal plume. Contained within this plume are hundreds of bioeffluents from perspiration and breath, and millions of skin flakes. Since early medicine, the airborne human scent was used in the diagnosis of disease. Recent examples also include toxicity and substance abuse, but this approach has never been quantified. The appearance of new bioeffluents or subtle changes in the steady-state may signal the onset of a chemical/biological attack. Portal sampling of the human thermal plume is suggested, followed by a pre-concentration step and the detection of the attacking agent or the early human response. The ability to detect nanogram levels of explosive trace contamination this way was already demonstrated. Key advantages of the portal approach are its rapidity and non-intrusiveness, and the advantage that it does not require the traditional bodily fluid or tissue sampling.

Settles, Gary S.; McGann, William J.

2001-08-01

420

A Jini-based Computing Portal System Toyotaro Suzumura  

E-print Network

. The web portal could also encounter such problems; the reason for their success is that software object technology. JiPANG performs uniform higher-level management of the computing services and re- sources being managed by individual Grid systems such as Ninf, NetSolve, Globus, etc. In order to give

421

Toward an Open and Interoperable e-Learning Portal: OEPortal  

ERIC Educational Resources Information Center

With the rapid advance of stand-alone e-learning systems, we believe a sharable and interoperable portal platform capable of integrating various existing learning systems is critical for the future development of e-learning systems. We highlight two problems as the root causes for current ineffective sharing of learning resources: learning object…

Hsu, Kevin Chihcheng; Yang, Fang-Chuan Ou

2008-01-01

422

Influence of Extraterrestrial Radiation on Radiation Portal Monitors  

SciTech Connect

Cosmic radiation and solar flares can be a major source of background radiation at the Earth’s surface. This paper examines the relationship between extraterrestrial radiation and the detectable background in radiation portal monitors used for homeland security applications. Background radiation data from 13 radiation portal monitor facilities are examined and compared against external sources of data related to extraterrestrial radiation, including measurements at neutron monitors located at 53 cosmic-ray observatories around the Earth, four polar orbiting satellites, three geostationary satellites, ground-based geomagnetic field data from observatories around the Earth, a solar magnetic index, solar radio flux data, and sunspot activity data. Four-years (January 2003 through December 2006) of data are used in this study, which include the latter part of Solar Cycle 23 as solar activity was on the decline. The analysis shows a significant relationship between some extraterrestrial radiation and the background detected in the radiation portal monitors. A demonstrable decline is shown in the average gamma ray and neutron background at the radiation portal monitors as solar activity declined over the period of the study.

Keller, Paul E.; Kouzes, Richard T.

2009-06-01

423

INFORMATION FLOW CONTROL FOR A MEDICAL RECORDS WEB PORTAL  

E-print Network

INFORMATION FLOW CONTROL FOR A MEDICAL RECORDS WEB PORTAL Thomas F. J.-M. Pasquier University application prototype1 developed for brain tumour patients to access their medical data. The prototype has security requirements. With these constraints in mind we developed an architecture incorporating

Cambridge, University of

424

The Mars Exploration Rover / Collaborative Information Portal Joan Walton  

E-print Network

The Mars Exploration Rover / Collaborative Information Portal Joan Walton NASA Ames Research Center 94035 U.S.A. John.A.Schreiner@nasa.gov Abstract We describe the architecture and interface of the Mars and scientific information for manag- ing the 2003 Mars Exploration Rovers. MER/CIP displays schedules, notifies

Filman, Robert E.

425

A Java-based Science Portal for Neutron Scattering Experiments  

E-print Network

A Java-based Science Portal for Neutron Scattering Experiments Sudharshan S. Vazhkudai James A (SNS) [14] is a large-scale leading- edge neutron scattering facility that hopes to fundamen- tally. Kohl Jens Schwidder ABSTRACT The Spallation Neutron Source (SNS) is a state-of-the-art neutron

Vazhkudai, Sudharshan

426

Testing a Web Information Portal for People with Learning Disabilities  

ERIC Educational Resources Information Center

This paper contributes to an incremental base of research exploring usability issues related to information and communication experiences and needs of individuals with learning difficulties. A web portal designed specifically with the intended users in mind (i.e. individuals with learning difficulties) has been developed and piloted through a Rix…

Williams, Peter; Hanson-Baldauf, Dana

2010-01-01

427

Abernethy malformation with portal vein aneurysm in a child  

PubMed Central

Abernethy malformation is an extremely rare anomaly of the splanchnic venous system. We describe multidetector computed tomography findings of an incidentally detected Abernethy malformation with portal vein aneurysm in a two-and-half-year old child. The computed tomography scan was performed for the evaluation of respiratory distress, poor growth, and loss of appetite. PMID:21430844

Chandrashekhara, Sheragaru H.; Bhalla, Ashu Seith; Gupta, Arun Kumar; Vikash, C. S.; Kabra, Susheel Kumar

2011-01-01

428

Comparative FeNi and Silicate Chronology in Portales Valley  

NASA Technical Reports Server (NTRS)

Re-Os and U-Pb data on Portales Valley suggest an early formation for the metal and silicates. These two chronometers and Rb-Sr and Sm-Nd require a young disturbance. This is inconsistent with the 39 Ar-40 Ar age and in need of clarification.

Chen, J. H.; Papanastassiou, D. A.; Wasserburg, G. J.

2000-01-01

429

SOUTHEAST BY 125 DEGREES, NORTHWEST PORTAL. NOTE THE BRIDGE HAS ...  

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

SOUTHEAST BY 125 DEGREES, NORTHWEST PORTAL. NOTE THE BRIDGE HAS THREE TRUSSES AND TWO LANES OF UNEQUAL WIDTH. THE LARGER LANE WAS FOR VEHICLES AND FARM MACHINERY, WHILE THE SMALLER LANE WAS FOR ANIMALS AND POSSIBLY PEDESTRIANS. - Rollins Farm Bridge, Spanning Boston & Maine Railroad at Ham Road, Rollinsford, Strafford County, NH

430

Management of portal hypertensive gastropathy and other bleeding  

PubMed Central

A major cause of cirrhosis related morbidity and mortality is the development of variceal bleeding, a direct consequence of portal hypertension. Less common causes of gastrointestinal bleeding are peptic ulcers, malignancy, angiodysplasia, etc. Upper gastrointestinal bleeding has been classified according to the presence of a variceal or non-variceal bleeding. Although non-variceal gastrointestinal bleeding is not common in cirrhotic patients, gastroduodenal ulcers may develop as often as non-cirrhotic patients. Ulcers in cirrhotic patients may be more severe and less frequently associated with chronic intake of non-steroidal anti-inflammatory drugs, and may require more frequently endoscopic treatment. Portal hypertensive gastropathy (PHG) refers to changes in the mucosa of the stomach in patients with portal hypertension. Patients with portal hypertension may experience bleeding from the stomach, and pharmacologic or radiologic interventional procedure may be useful in preventing re-bleeding from PHG. Gastric antral vascular ectasia (GAVE) seems to be different disease entity from PHG, and endoscopic ablation can be the first-line treatment. PMID:24757652

2014-01-01

431

Text-Based Ads-Portal Domains: Identification and Measurements  

E-print Network

that only shows advertisements, served by a third-party advertisement syndication service, in the form shows advertisements in the form of ads listing and does not have real content. Generally, third-party advertise- ment syndication servers (domain parking services) provide the ads content to ads-portal domains

Yang, Xiaowei

432

7. WEST PORTAL. NOTE DECORATIVE ELEMENTS, INCLUDING DECORATIVE CAPS COVERING ...  

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

7. WEST PORTAL. NOTE DECORATIVE ELEMENTS, INCLUDING DECORATIVE CAPS COVERING COMPRESSION BLOCKS. NAME OF THE BRIDGE COMPANY WITH HERALDIC CARTOUCHE BEARING NAMES OF THREE COUNTY COMMISSIONERS BELOW, AND OPEN SCROLL WORK IN WROUGHT IRON. - Peevy Road Bridge, Peevy Road spanning Perkiomen Creek in Upper Hanover Township, East Greenville, Montgomery County, PA

433

The Payoff of Corporate Portal Usage in an Academic Institution  

ERIC Educational Resources Information Center

Purpose: The purpose of this paper is to empirically assess the payoffs of a corporate portal in an academic institution in Oman and its impacts on business processes and employees. Design/methodology/approach: The study included 100 employees, mostly instructors, in an academic institution. The questionnaire included indicators related to the…

Al-Busaidi, Kamla Ali

2012-01-01

434

Gastric lesions in portal hypertension: inflammatory gastritis or congestive gastropathy?  

Microsoft Academic Search

This paper reports the incidence and natural history of macroscopic gastritis in a series of 127 consecutive patients with portal hypertension of various aetiologies. Gastritis was observed endoscopically in 65 patients (51%) and was of two main types. Twenty eight patients had severe or persistent gastritis which caused clinically significant bleeding on 80 occasions and accounted for 25% of the

T T McCormack; J Sims; I Eyre-Brook; H Kennedy; J Goepel; A G Johnson; D R Triger

1985-01-01

435

the Web Ontologybased Community Web Portals Steffen Staab  

E-print Network

the Web Ontology�based Community Web Portals Steffen Staab J urgen Angele b , Stefan Decker of World Wide Web virtually everyone a computer contribute high�value information challenge to able information found. Search machines with task, ultimately provide appropriatly struc� tured views onto web

Staab, Steffen

436

Invited Viewer Invited Viewer iSIS Portal Access  

E-print Network

1 Invited Viewer Invited Viewer iSIS Portal Access Tufts "Invited Viewers" such as parents and spouses can be granted view-only access to a student's iSIS secure personal information. Students previously registered by another student or you do not have a Tufts Username and active iSIS access (most

Dennett, Daniel

437

Original article Hepatic and portal-drained viscera balances  

E-print Network

Original article Hepatic and portal-drained viscera balances of amino acids, insulin, glucagon; Hepatic and intestinal balances of amino acids, insulin, glucagon and gastrin were studied In 6 non the lowest after ingestion of RA 12. No differences were noted in the same parameters for glucagon

Paris-Sud XI, Université de

438

7. FIGUEROA STREET TUNNELS NO. 1 & 2, SOUTH PORTALS. ...  

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

7. FIGUEROA STREET TUNNELS NO. 1 & 2, SOUTH PORTALS. SEEN FROM PARK ROW. LOOKING 8°N. - Figueroa Street Tunnels, Mileposts 24.90, 25.14, 25.28, & 25.37 on Arroyo Seco Parkway, Los Angeles, Los Angeles County, CA

439

4. FIGUEROA STREET TUNNEL NO. 3, SOUTH PORTAL. SOLANO AVENUE ...  

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

4. FIGUEROA STREET TUNNEL NO. 3, SOUTH PORTAL. SOLANO AVENUE ENTRANCE LANE ON RIGHT. LOOKING 20°N. - Figueroa Street Tunnels, Mileposts 24.90, 25.14, 25.28, & 25.37 on Arroyo Seco Parkway, Los Angeles, Los Angeles County, CA

440

Privacy Impact Assessment (PIA) SAO MicroObservatory Guest Portal  

E-print Network

Privacy Impact Assessment (PIA) SAO MicroObservatory Guest Portal I. System Identification 1 of the public to use remote robotic telescopes to take images of the sky. II. Privacy Assessment 1. What information is being (or will be) collected. The user's email address, age range, and state are collected via

Mathis, Wayne N.

441

3. East portal of Tunnel 25, contextual view to southwest ...  

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

3. East portal of Tunnel 25, contextual view to southwest from atop Tunnel 26 (HAER CA-202), with the original Central Pacific Transcontinental line passing above the new line, 135mm lens. - Central Pacific Transcontinental Railroad, Tunnel No. 25, Milepost 133.09, Applegate, Placer County, CA

442

1. West portal of Tunnel 34, contextual view to northeast ...  

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

1. West portal of Tunnel 34, contextual view to northeast from inside east end of Tunnel 33 (Cape Horn Tunnel), 135mm lens with electronic flash fill. - Central Pacific Transcontinental Railroad, Tunnel No. 34, Milepost 145.4, Colfax, Placer County, CA

443

5. East portal of Tunnel 41, contextual view to westnorthwest, ...  

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

5. East portal of Tunnel 41, contextual view to west-northwest, 135mm lens. Summit of Mount Judah, named for the visionary engineer who conceived and mapped the route of the first transcontinental railroad, rises above the tunnel. - Central Pacific Transcontinental Railroad, Tunnel No. 41, Milepost 193.3, Donner, Placer County, CA

444

1. West portal of Tunnel 26, contextual view to northeast ...  

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

1. West portal of Tunnel 26, contextual view to northeast from atop Tunnel 25 (HAER CA-201), with Tunnel 27 (HAER CA-203) visible in distance, 210mm lens. View is along new line, with original Central Pacific Transcontinental line crossing over the top above Tunnel 26. - Central Pacific Transcontinental Railroad, Tunnel No. 26, Milepost 133.29, Applegate, Placer County, CA

445

2. West portal of Tunnel 26, contextual view to northeast ...  

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

2. West portal of Tunnel 26, contextual view to northeast from track level, 135mm lens. Tunnel 27 (HAER CA-203) is visible in the distance. - Central Pacific Transcontinental Railroad, Tunnel No. 26, Milepost 133.29, Applegate, Placer County, CA

446

3. PORTAL VIEW OF THE CONCRETE ARCH (ONEWAY BRIDGE) THAT ...  

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

3. PORTAL VIEW OF THE CONCRETE ARCH (ONE-WAY BRIDGE) THAT PROVIDES ACCESS TO THE MIDDLE CHANNEL DAM AND POWER PLANT, LOOKING WEST. - Washington Water Power Company Post Falls Power Plant, Concrete Arch Bridge, West of intersection of Spokane & Fourth Streets, Post Falls, Kootenai County, ID

447

4. PORTAL VIEW OF THE CONCRETE ARCH (ONEWAY BRIDGE) THAT ...  

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

4. PORTAL VIEW OF THE CONCRETE ARCH (ONE-WAY BRIDGE) THAT EXITS THE MIDDLE CHANNEL ISLAND AND POST FALLS POWER PLANT, LOOKING EAST. - Washington Water Power Company Post Falls Power Plant, Concrete Arch Bridge, West of intersection of Spokane & Fourth Streets, Post Falls, Kootenai County, ID

448

Thrombose portale calcifiée dans le suivi d’un shunt porto-cave: aspect échographique et diagnostic différentiel  

Microsoft Academic Search

The case of a patient with large hepatic calcifications along the portal vascular network caused by long-standing portal vein thrombosis is presented. These calcifications appeared in extended portal thrombosis and were confirmed in follow-up for a surgical portocaval shunt related to portal hypertension. The differential diagnosis should distinguish these from hyperechoic patterns observed along the periportal vascular network, including intraductal

E. Danse; Y. Horsmans

2006-01-01

449

Enhancement of portal blood flow by ursodesoxycholic acid in partially hepatectomized rats.  

PubMed

Portal venous flow (PVF) was examined after portal injection of ursodesoxycholic acid (URSO) in rats that were partially hepatectomized by either 40% or 66%. URSO (10 mg/kg per minute) was injected into the portal vein and was thereafter observed to increase PVF concomitantly with a fall in portal vein and was thereafter observed to increase PVF concomitantly with a fall in portal venous pressure (PVP) in control animals. The increase in PVF in response to URSO was dose-dependent. In hepatectomized rats, the PVF response was augmented when the same dose of URSO was portally injected, and the magnitude of response was enhanced in proportion to the volume of liver resected. These results suggest that URSO increases PVF through vasodilation of the portal vessels, and therefore URSO is considered to increase PVF potently in a partially hepatectomized condition. PMID:8919288

Ohtake, M; Sandoh, N; Sakaguchi, T; Tsukada, K; Hatakeyama, K

1996-01-01

450

Novel Percutaneous Radiofrequency Ablation of Portal Vein Tumor Thrombus: Safety and Feasibility  

SciTech Connect

We report our experience of the safety of partial recanalization of the portal vein using a novel endovascular radiofrequency (RF) catheter for portal vein tumor thrombosis. Six patients with liver cancer and tumor thrombus in the portal vein underwent percutaneous intravascular radiofrequency ablation (RFA) using an endovascular bipolar RF device. A 0.035-inch guidewire was introduced into a tributary of the portal vein and through which a 5G guide catheter was introduced into the main portal vein. After manipulation of the guide catheter over the thrombus under digital subtraction angiography, the endovascular RF device was inserted and activated around the thrombus. There were no observed technique specific complications, such as hemorrhage, vessel perforation, or infection. Post-RFA portography showed partial recanalization of portal vein. RFA of portal vein tumor thrombus in patients with hepatocellular carcinoma is technically feasible and warrants further investigation to assess efficacy compared with current recanalization techniques.

Mizandari, Malkhaz [High Technology Medical Center, Tbilisi State Medical University (Georgia)] [High Technology Medical Center, Tbilisi State Medical University (Georgia); Ao, Guokun [The 309 Hospital of People's Liberation Army, Department on Oncology (China)] [The 309 Hospital of People's Liberation Army, Department on Oncology (China); Zhang Yaojun; Feng Xi [Imperial College London, Department of Surgery and Cancer (United Kingdom)] [Imperial College London, Department of Surgery and Cancer (United Kingdom); Shen Qiang [The First Minimally Invasive Department of Eastern Hepatobiliary Surgery Hospital (China)] [The First Minimally Invasive Department of Eastern Hepatobiliary Surgery Hospital (China); Chen Minshan [Cancer Centre of Sun Yat-Sen University, Department of Hepatobiliary Surgery (China)] [Cancer Centre of Sun Yat-Sen University, Department of Hepatobiliary Surgery (China); Lau, Wan Yee [Chinese University of Hong Kong, Department of Surgery, Faculty of Medicine (Hong Kong)] [Chinese University of Hong Kong, Department of Surgery, Faculty of Medicine (Hong Kong); Nicholls, Joanna; Jiao Long; Habib, Nagy, E-mail: nagy.habib@imperial.ac.uk [Imperial College London, Department of Surgery and Cancer (United Kingdom)] [Imperial College London, Department of Surgery and Cancer (United Kingdom)

2013-02-15

451

Determination of liver and spleen perfusion by quantitative sequential scintigraphy: results in normal subjects and in patients with portal hypertension  

SciTech Connect

Quantitative sequential hepatosplenic scintigraphy was performed to determine the arterial and portal components of the total liver circulation in 135 patients (no liver disease in 20, liver cirrhosis and portal ;hypertension in 115). Portal circulation in healthy patients is calculated to be 70.4 +/- 6.2% of the total liver blood flow, whereas patients with portal hypertension showed a clear reduction of portal perfusion to 20.2 +/- 10.9%. Thirteen of 20 patients having portosystemic shunt surgery showed no portal perfusion. This new, noninvasive diagnostic technique yields vital information particularly useful in ;the surgical evaluation of portal hypertension. Other indications are also discussed.

Biersack, H.J.; Torres, J.; Thelen, M.; Monzon, O.; Winkler, C.

1981-05-01

452

Hepatic and portal vein thrombosis in cirrhosis: Possible role in development of parenchymal extinction and portal hypertension  

Microsoft Academic Search

Obliterative lesions in portal veins (PVs) and hepatic veins (HVs) of all sizes are known to occur in cirrhotic livers. PV lesions have generally been attributed to thrombosis, but the pathogenesis of the HV (veno-occlusive) lesions is unknown. We have studied 61 cirrhotic livers removed at transplantation to clarify the prevalence, distribution, and pathogenesis of venous lesions, as well as

Ian R. Wanless; Florence Wong; Lawrence M. Blendis; Paul Greig; E. Jenny Heathcote; Gary Levy

1995-01-01

453

to the PORTAL servers, including count, occupancy, and time mean speeds in each lane. PORTAL also includes incident and variable  

E-print Network

concern to professionals and the public. This paper describes the modeling and calculation of sus and necessary data are described. Future plans call for integrating these measures into the PORTAL web interface to expand the types of performance measures used for regional transportation planning and operations. Policy

Bertini, Robert L.

454

Portal biliopathy in patients with non-cirrhotic portal hypertension: does the type of surgery affect outcome?  

PubMed Central

Objectives After portosystemic anastomoses for biliopathy, some patients continue to suffer biliary obstruction. The effects of splenectomy and devascularization of the abdominal oesophagus and upper stomach are unclear. The aim of the current study was to determine the features of portal biliopathy (PB) in patients with non-cirrhotic portal hypertension, and to investigate outcomes in these patients after surgical procedures. Methods A retrospective study of 56 patients who underwent surgery for PB during 1996–2010 was conducted. Data on presenting features, treatment received and outcomes were analysed. Results In total, 41 of these patients had extrahepatic portal venous obstruction and 15 had non-cirrhotic portal fibrosis. Forty patients underwent shunt surgery and 16 underwent splenectomy and devascularization. Median bilirubin levels fell from 1.8 mg/dl (range: 0.4–5.9 mg/dl) to 1.0 mg/dl (range: 0.3–5.4 mg/dl) after shunt surgery and from 1.9 mg/dl (range: 0.6–4.0 mg/dl) to 1.2 mg/dl (range: 0.6–5.2 mg/dl) after splenectomy–devascularization. On follow-up, five of 33 patients had persistent jaundice after successful shunt surgery. These patients had a history of multiple endoscopic stentings and three patients had demonstrated a dominant common bile duct stricture preoperatively. Conclusions Portal biliopathy was reversed in 38 of 43 patients by either portosystemic shunting or splenectomy–devascularization. In five patients, direct biliary decompressive procedures were required because of shunt blockage or a non-reversible biliary stricture. PMID:22672545

Chattopadhyay, Somnath; Govindasamy, Mahendran; Singla, Punit; Varma, Vibha; Mehta, Naimish; Kumaran, Vinay; Nundy, Samiran

2012-01-01

455

OpenER, a Dutch Initiative in Open Educational Resources  

ERIC Educational Resources Information Center

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

Schuwer, Robert; Mulder, Fred

2009-01-01

456

JPL Genesis and Rapid Intensification Processes (GRIP) Portal  

NASA Technical Reports Server (NTRS)

Satellite observations can play a very important role in airborne field campaigns, since they provide a comprehensive description of the environment that is essential for the experiment design, flight planning, and post-experiment scientific data analysis. In the past, it has been difficult to fully utilize data from multiple NASA satellites due to the large data volume, the complexity of accessing NASA s data in near-real-time (NRT), as well as the lack of software tools to interact with multi-sensor information. The JPL GRIP Portal is a Web portal that serves a comprehensive set of NRT observation data sets from NASA and NOAA satellites describing the atmospheric and oceanic environments related to the genesis and intensification of the tropical storms in the North Atlantic Ocean. Together with the model forecast data from four major global atmospheric models, this portal provides a useful tool for the scientists and forecasters in planning and monitoring the NASA GRIP field campaign during the 2010 Atlantic Ocean hurricane season. This portal uses the Google Earth plug-in to visualize various types of data sets, such as 2D maps, wind vectors, streamlines, 3D data sets presented at series of vertical cross-sections or pointwise vertical profiles, and hurricane best tracks and forecast tracks. Additionally, it allows users to overlap multiple data sets, change the opacity of each image layer, generate animations on the fly with selected data sets, and compare the observation data with the model forecast using two independent calendars. The portal also provides the capability to identify the geographic location of any point of interest. In addition to supporting the airborne mission planning, the NRT data and portal will serve as a very rich source of information during the post-field campaign analysis stage of the airborne experiment. By including a diverse set of satellite observations and model forecasts, it provides a good spatial and temporal context for the high-resolution, but limited in space and time, airborne observations.

Knosp, Brian W.; Li, P. Peggy; Vu, Quoc A.; Turk, Francis J.; Shen, Tsae-Pyng J.; Hristova-Veleva, Svetla M.; Licata, Stephen J.; Poulsen, William L.

2012-01-01

457

Etiology of Portal Hypertension in Children:A Single Center's Experiences  

PubMed Central

BACKGROUND All conditions that interfere with blood flow at any level within the portal system can lead to portal hypertension. For better management of this disorder, it is important to determine the underlying cause. In previous studies, extra-hepatic disorders have been reported as the main cause of portal hypertension in children. In this study, we investigate the underlying causes of portal hypertension in children. METHODS This prospective, descriptive study investigated the etiology of 45 children with portal hypertension who referred to Nemazee Hospital Pediatric Gastroenterology Ward from 2005 to 2007. The underlying causes of portal hypertension were determined by liver biopsy, abdominal sonography, abdominal computed tomography scan, and liver Doppler sonography. RESULTS In this study, 42 of 45 patients (93.3%) developed portal hypertension due to intrahepatic diseases. Extra-hepatic portal hypertension was detected in 3 (6.7%) patients with portal vein thrombosis. CONCLUSION Intrahepatic diseases were the most common etiology of portal hypertension among children who referred to our center. PMID:24829658

Imanieh, Mohammad Hadi; Dehghani, Seyed Mohsen; Khoshkhui, Maryam; Malekpour, Abdorrasoul

2012-01-01

458

Intrahepatic distribution of portal and hepatic arterial blood flows in anaesthetized cats and dogs and the effects of portal occlusion, raised venous pressure and histamine  

PubMed Central

1. Radioactive microspheres were used to determine the distribution of arterial and portal flows within the liver. 141Ce-microspheres and 51Cr-spheres were given to allow two determinations of flow distribution in each animal and experiments are described to establish the accuracy and validity of the method. 2. Mean flow/g to any lobe or segment of a lobe in a group of animals was not markedly different from the mean flow/g to the whole liver, and in general the liver was homogeneously perfused with both portal and arterial blood. However, in any one liver, some areas received a relatively greater flow (up to 300%) and some a relatively smaller flow (down to 50%) at the time the microspheres were given. The gall bladder received a much smaller portal flow/g than the parenchyma but its arterial flow/g varied widely in different animals. 3. If portal flow to an area of parenchyma was reduced by occlusion of a branch of the portal vein, this area received a significantly increased arterial flow. 4. An increase in hepatic venous pressure did not cause a significant change in the intrahepatic distribution of either arterial or portal flows in cats. 5. In dogs, infusions of histamine into the portal vein caused a redistribution of portal flow away from the free ends of the lobes towards the hilar ends but the distribution between lobes did not change and there was no redistribution of arterial flow. PMID:4647258

Greenway, C. V.; Oshiro, G.

1972-01-01

459

Portal Vein Embolization: Rationale, Technique, and Current Application  

PubMed Central

Portal vein embolization (PVE) is a technique used before hepatic resection to increase the size of liver segments that will remain after surgery. This therapy redirects portal blood to segments of the future liver remnant (FLR), resulting in hypertrophy. PVE is indicated when the FLR is either too small to support essential function or marginal in size and associated with a complicated postoperative course. When appropriately applied, PVE has been shown to reduce postoperative morbidity and increase the number of patients eligible for curative intent resection. PVE is also being combined with other therapies in novel ways to improve surgical outcomes. This article reviews the rationale, technical considerations, and current use of preoperative PVE. PMID:23729977

May, Benjamin J.; Madoff, David C.

2012-01-01

460

Portal vein thrombosis with renal cell carcinoma: a case report.  

PubMed

Portal vein thrombosis refers to an obstruction of blood flow in the portal vein; this rare disease can be both local and systemic. Local risk factors, accounting for about 70% of cases, can be abdominal cancers, inflammatory of infective diseases, surgical procedures or cirrhosis. A 62-year-old man, affected by hypertension and taking acetylsalicylic acid after a myocardial infarction in 1994, developed deep venous thrombosis on the right leg. Six months later the patient was admitted to the emergency unit due to abdominal pain. A CT scan revealed the presence of a complete splanchnic vein thrombosis and a primary tumor on the right kidney. The patient was treated with total parenteral nutrition and intravenous solution of heparin sodium first and then, because of occurrence of allergy, fondaparinux, with improvement of the abdominal pain. Subsequently he underwent right radical nephrectomy. PMID:23796464

D'Elia, Carolina; Cerruto, Maria Angela; Molinari, Alberto; Piovesan, Raffaella; Cavicchioli, Francesca; Minja, Anila; Novella, Giovanni; Artibani, Walter

2014-01-01