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1

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.

2

MedEdPORTAL: Educational Scholarship for Teaching  

ERIC Educational Resources Information Center

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

Reynolds, Robby J.; Candler, Christopher S.

2008-01-01

3

Teachers' Acceptance and Use of an Educational Portal  

ERIC Educational Resources Information Center

In this study, teachers' acceptance and use of an educational portal is assessed based on data from two sources: usage data (number of logins, downloads, uploads, reactions and pages viewed) and an online acceptance questionnaire. The usage data is extracted on two occasions from the portal's database: at survey completion (T1) and twenty-two…

Pynoo, Bram; Tondeur, Jo; van Braak, Johan; Duyck, Wouter; Sijnave, Bart; Duyck, Philippe

2012-01-01

4

Supporting the education evidence portal via text mining  

PubMed Central

The UK Education Evidence Portal (eep) provides a single, searchable, point of access to the contents of the websites of 33 organizations relating to education, with the aim of revolutionizing work practices for the education community. Use of the portal alleviates the need to spend time searching multiple resources to find relevant information. However, the combined content of the websites of interest is still very large (over 500?000 documents and growing). This means that searches using the portal can produce very large numbers of hits. As users often have limited time, they would benefit from enhanced methods of performing searches and viewing results, allowing them to drill down to information of interest more efficiently, without having to sift through potentially long lists of irrelevant documents. The Joint Information Systems Committee (JISC)-funded ASSIST project has produced a prototype web interface to demonstrate the applicability of integrating a number of text-mining tools and methods into the eep, to facilitate an enhanced searching, browsing and document-viewing experience. New features include automatic classification of documents according to a taxonomy, automatic clustering of search results according to similar document content, and automatic identification and highlighting of key terms within documents. PMID:20643679

Ananiadou, Sophia; Thompson, Paul; Thomas, James; Mu, Tingting; Oliver, Sandy; Rickinson, Mark; Sasaki, Yutaka; Weissenbacher, Davy; McNaught, John

2010-01-01

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

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.

7

Accelerating the ROI of EHRs.  

PubMed

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

Arlotto, Pam

2014-02-01

8

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

9

EHR Big Data Deep Phenotyping  

PubMed Central

Summary Objectives Given the quickening speed of discovery of variant disease drivers from combined patient genotype and phenotype data, the objective is to provide methodology using big data technology to support the definition of deep phenotypes in medical records. Methods As the vast stores of genomic information increase with next generation sequencing, the importance of deep phenotyping increases. The growth of genomic data and adoption of Electronic Health Records (EHR) in medicine provides a unique opportunity to integrate phenotype and genotype data into medical records. The method by which collections of clinical findings and other health related data are leveraged to form meaningful phenotypes is an active area of research. Longitudinal data stored in EHRs provide a wealth of information that can be used to construct phenotypes of patients. We focus on a practical problem around data integration for deep phenotype identification within EHR data. The use of big data approaches are described that enable scalable markup of EHR events that can be used for semantic and temporal similarity analysis to support the identification of phenotype and genotype relationships. Conclusions Stead and colleagues’ 2005 concept of using light standards to increase the productivity of software systems by riding on the wave of hardware/processing power is described as a harbinger for designing future healthcare systems. The big data solution, using flexible markup, provides a route to improved utilization of processing power for organizing patient records in genotype and phenotype research. PMID:25123744

Lenert, L.; Lopez-Campos, G.

2014-01-01

10

The SERC K12 Educators Portal to Teaching Activities and Pedagogic Approaches  

NASA Astrophysics Data System (ADS)

The Science Education Resource Center (SERC) has created a portal to information for K12 educators to provide high-quality grade level appropriate materials from a wide variety of projects and topics. These materials were compiled across the SERC site, showcasing materials that were created for, or easily adaptable to, K12 classrooms. This resource will help support implementation of Next Generation Science Standards by assisting educators in finding innovative resources to address areas of instruction that are conceptually different than previous national and state science standards. Specifically, the K12 portal assists educators in learning about approaches that address the cross-cutting nature of science concepts, increasing students quantitative reasoning and numeracy skills, incorporating technology such as GIS in the classroom, and by assisting educators of all levels of K12 instruction in using relevant and meaningful ways to teach science concepts. The K12 portal supports educators by providing access to hundreds of teaching activities covering a wide array of science topics and grade levels many of which have been rigorously reviewed for pedagogic quality and scientific accuracy. The portal also provides access to web pages that enhance teaching practices that help increase student's system thinking skills, make lectures interactive, assist instructors in conducting safe and effective indoor and outdoor labs, providing support for teaching energy and climate literacy principles, assisting educators in addressing controversial content, provide guidance in engaging students affective domain, and provides a collection of tools for making teaching relevant in 21st century classrooms including using GIS, Google Earth, videos, visualizations and simulations to model and describe scientific concepts. The portal also provides access to material for specific content and audiences by (1) Supporting AGIs 'Map your World' week to specifically highlight teaching activities and approaches that use maps as the basis of instruction for a wide range of topics commonly taught in K12 science courses such as natural hazards, urban development, plate tectonics, climate change, ocean science, and water resources; and (2) Providing easy access to a vast collection of materials specifically for teachers of AP and IB classes including collections of teaching activities for all science disciplines as well as pedagogic approaches that are appropriate for the lab-intensive nature of these classes. The contents of the K12 portal are drawn from a number of projects and collaborations, including CLEAN, Earth Exploration Toolbook, Minnesota Science Teachers Education Project, Pedagogy in Action, EarthLabs, NAGT and On the Cutting Edge. Teachers can add their own materials to the site by sharing lessons plans, activities, and labs. K12 educators of all levels will find a wide variety of resources to spark the curiosity and interest of students. Explore the SERC K12 Educators Portal at: http://serc.carleton.edu/k12/index.html

Larsen, K.; Kirk, K. B.; Manduca, C. A.; Ledley, T. S.; Schmitt, L.

2013-12-01

11

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

12

eMICE: electronic Models Information, Communication, and Education — Portal  

Cancer.gov

The National Cancer Institute supports the broad use of animal models in many aspects of cancer research. The NCI designed the eMICE site to offer electronic Models Information, Communication, and Education about the wide variety of animal cancer models. This site introduces aspects of the history of animal research, animal husbandry, techniques for breeding and characterizing animal models, standards for animal use, and sources of animal models.

13

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

14

Sharable EHR systems in Finland.  

PubMed

In Finland, the shared record is a virtual electronic health record (EHR). It consists of health data generated, maintained and preserved by different health care service providers. Two different kinds of technologies for integrating regional EHR-systems are applied, but mainly by using a common middleware. Services provided by this middleware are EHR location services using a link repository and combining EHR-viewing services with security management services including consent management and identification services for health professionals. The Regional Health Information Organization (UUMA) approach is based on a stepwise implementation of integrated regional healthcare services to create a virtually borderless healthcare organization--a patient centered virtual workspace. In the virtual workspace multi-professional teams and patients collaborate and share information regardless of time and place. Presently the regional health information network (RHIN) is comprised of three integrated services between primary, secondary and tertiary care within the county of Uusimaa. The regional healthcare modules consist of an (1) eReferral network, (2) integrated EHR service between health care professionals and (3) PACS system. The eReferral between primary and secondary care not only speeds up the transfer, but also offers an option for communication in the form of eConsultation between general practitioners and hospital specialists. By sharing information and knowledge remote eConsultations create a new working environment for integrated delivery of eServices between the health care providers. Over 100,000 eReferral messages (40 %) were transferred between health care providers. Interactive eConsultations enable supervised care leading to the reduction of outpatient visits and more timely appointments. One third (10/31) of the municipal health centers are connected to the clinics in the Helsinki University Central Hospital by the eReferral system. The link directory service extends the dimensions of networking between organizations by combining legacy systems within regional primary and secondary care. The link directory is an interface to diverse patient information systems, like HUSpacs, containing links pointing to the actual patient data located in remote information systems. The original data including images can be viewed with a web browser, but data can be accessed only with the patient's informed consent. Currently the reference data base includes 9.5 million links from 1.4 million patients with over 2.000 daily users. We aim to create a new working environment for professionals by incorporation of innovative information and communication technology, new organization of work and re-engineering of workflows. In the near-future, the citizen will have an active role participating in decisions on his care, carrying out guided self-care and taking steps of pro-active prevention. PMID:17095834

Harno, Kari; Ruotsalainen, Pekka

2006-01-01

15

The portal of geriatrics online education: a 21st-century resource for teaching geriatrics.  

PubMed

The way students are taught and evaluated is changing, with greater emphasis on flexible, individualized, learner-centered education, including the use of technology. The goal of assessment is also shifting from what students know to how they perform in practice settings. Developing educational materials for teaching in these ways is time-consuming and can be expensive. The Portal of Geriatrics Online Education (POGOe) was developed to aid educators in meeting these needs and become quicker, better-prepared teachers of geriatrics. POGOe contains more than 950 geriatrics educational materials that faculty at 45% of allopathic and 7% of osteopathic U.S. medical schools and the Centers for Geriatric Nursing Excellence have created. These materials include various instructional and assessment methodologies, including virtual and standardized patients, games, tutorials, case-based teaching, self-directed learning, and traditional lectures. Materials with common goals and resource types are available as selected educational series. Learner assessments comprise approximately 10% of the educational materials. POGOe also includes libraries of videos, images, and questions extracted from its educational materials to encourage educators to repurpose content components to create new resources and to align their teaching better with their learners' needs. Web-Geriatric Education Modules, a peer-reviewed online modular curriculum for medical students, is a prime example of this repurposing. The existence of a robust compendium of instructional and assessment materials allows educators to concentrate more on improving learner performance in practice and not simply on knowledge acquisition. It also makes it easier for nongeriatricians to teach the care of older adults in their respective disciplines. PMID:25644187

Ramaswamy, Ravishankar; Leipzig, Rosanne M; Howe, Carol L; Sauvigne, Karen; Usiak, Craig; Soriano, Rainier P

2015-02-01

16

eHR: An Introduction. IES Report.  

ERIC Educational Resources Information Center

This document introduces the concept of electronic human resources (eHR) and its application. Chapter 1 presents a brief overview of the guide's development, purpose, and structure. Chapter 2 defines the concept of eHR as "the application of conventional, Web, and voice technologies to improve HR administration, transactions, and process…

Kettley, P.; Reilly, P.

17

Secondary Use of the EHR via Pseudonymisation  

E-print Network

Health Record (EHR) has many secondary uses, such as health economy and health care research, or diseaseSecondary Use of the EHR via Pseudonymisation Klaus POMMERENING Institut für Medizinische Biometrie specific clinical or epidemiological research. For these uses in general the patient identity is not needed

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

18

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

Code of Federal Regulations, 2014 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...

2014-10-01

19

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

MedlinePLUS

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

20

Security requirements in EHR systems and archives.  

PubMed

EHR system is a system for recording, retrieving, and manipulating information in electronic health care records. Archive is an organisation that intends to preserve health records for access and use for an identified group of consumers. There exist many combinations of EHR-systems and archives. EHR-system can be a single on-line system with integrated archiving functions or archive and EHR-system are co-operative or federated systems. This paper describes both common security requirements for EHR-systems and archives and security requirement specific for archives. Requirements are derived from ethical and legal principles. From principles a set of security requirements are derived. Safeguards for implementing security are discussed. In practise EHR-system and archive share many security services. This document is proposing that inside a security domain both the archive and EHR-system have a common security policy. In addition to this the archiving organisation needs a documented policy for information preserving and a policy for access and distribution of information between other archives. PMID:15747955

Ruotsalainen, Pekka

2004-01-01

21

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

22

Toward Understanding EHR Use in Small Physician Practices  

PubMed Central

This article presents insights into the use of electronic health records (EHRs) by small physician practices participating in a CMS pay-for-performance demonstration. Site visits to four States reveal slow movement toward improved EHR use. Factors facilitating use of EHRs include customization of EHR products and being owned by a larger organization. Factors limiting use of EHRs include system limitations, cost, and lack of strong incentives to improve. Practices in one State were moving more vigorously toward improved EHR use than those in the other States. Many practices also increased use of medical assistants after implementing EHRs. PMID:20191754

Felt-Lisk, Suzanne; Johnson, Lorraine; Fleming, Christopher; Shapiro, Rachel; Natzke, Brenda

2009-01-01

23

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.

24

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

Code of Federal Regulations, 2011 CFR

...2011-10-01 false Certification of health information technology other than Complete EHRs and EHR Modules...DEPARTMENT OF HEALTH AND HUMAN SERVICES HEALTH INFORMATION TECHNOLOGY HEALTH INFORMATION TECHNOLOGY STANDARDS, IMPLEMENTATION...

2011-10-01

25

Challenges of EHR implementation and related guidelines in Isfahan  

Microsoft Academic Search

Introduction: Today, eHealth is base of health services around the world, and electronic health records as an essential core element and its basic architecture for telehealth is considered. EHR offers many potential opportunities for healthcare systems we must focus on its challenges and related guidelines but for EHR deployment. The purpose of this paper is exploration challenges of EHR implementation

Maryam Jahanbakhsh; Nahid Tavakoli; Habibollah Mokhtari

2011-01-01

26

A reference architecture for integrated EHR in Colombia.  

PubMed

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

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

2011-01-01

27

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

PubMed

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

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

2008-01-01

28

Integration of DICOM and openEHR standards  

NASA Astrophysics Data System (ADS)

The standard format for medical imaging storage and transmission is DICOM. openEHR is an open standard specification in health informatics that describes the management and storage, retrieval and exchange of health data in electronic health records. Considering that the integration of DICOM and openEHR is beneficial to information sharing, on the basis of XML-based DICOM format, we developed a method of creating a DICOM Imaging Archetype in openEHR to enable the integration of DICOM and openEHR. Each DICOM file contains abundant imaging information. However, because reading a DICOM involves looking up the DICOM Data Dictionary, the readability of a DICOM file has been limited. openEHR has innovatively adopted two level modeling method, making clinical information divided into lower level, the information model, and upper level, archetypes and templates. But one critical challenge posed to the development of openEHR is the information sharing problem, especially in imaging information sharing. For example, some important imaging information cannot be displayed in an openEHR file. In this paper, to enhance the readability of a DICOM file and semantic interoperability of an openEHR file, we developed a method of mapping a DICOM file to an openEHR file by adopting the form of archetype defined in openEHR. Because an archetype has a tree structure, after mapping a DICOM file to an openEHR file, the converted information is structuralized in conformance with openEHR format. This method enables the integration of DICOM and openEHR and data exchange without losing imaging information between two standards.

Wang, Ying; Yao, Zhihong; Liu, Lei

2011-03-01

29

Carrots and sticks for EHR implementation.  

PubMed

Questions providers should consider in determining whether to meet standards for meaningful use of EHR technology in time to receive incentive funds and avoid monetary sanctions include: Is the incentive meaningful? Is it feasible to meet the standards for demonstrating meaningful use in time to qualify for the incentive? Is the incentive real? Is the "adjustment" sufficiently motivating? Is it better to go for the incentive or simply attempt to avoid the adjustment? PMID:20178241

Amatayakul, Margret

2010-02-01

30

Protection of electronic health records (EHRs) in cloud.  

PubMed

EHR technology has come into widespread use and has attracted attention in healthcare institutions as well as in research. Cloud services are used to build efficient EHR systems and obtain the greatest benefits of EHR implementation. Many issues relating to building an ideal EHR system in the cloud, especially the tradeoff between flexibility and security, have recently surfaced. The privacy of patient records in cloud platforms is still a point of contention. In this research, we are going to improve the management of access control by restricting participants' access through the use of distinct encrypted parameters for each participant in the cloud-based database. Also, we implement and improve an existing secure index search algorithm to enhance the efficiency of information control and flow through a cloud-based EHR system. At the final stage, we contribute to the design of reliable, flexible and secure access control, enabling quick access to EHR information. PMID:24110656

Alabdulatif, Abdulatif; Khalil, Ibrahim; Mai, Vu

2013-01-01

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 Hypertension  

PubMed Central

Portal hypertension is an increase in pressure in the portal vein and its tributaries. It is defined as a portal pressure gradient (the difference in pressure between the portal vein and the hepatic veins) greater than 5 mm Hg. Although this gradient defines portal hypertension, a gradient of 10 mm Hg or greater defines clinically significant portal hypertension, because this pressure gradient predicts the development of varices,1 decompensation of cirrhosis,2,3 and hepatocellular carcinoma.4 The most direct consequence of portal hypertension is the development of gastroesophageal varices that may rupture and lead to the development of variceal hemorrhage. This article reviews the pathophysiologic bases of the different pharmacologic treatments for portal hypertension in patients with cirrhosis and places them in the context of the natural history of varices and variceal hemorrhage. PMID:20951924

Miñano, Cecilia; Garcia-Tsao, Guadalupe

2010-01-01

33

77 FR 4325 - Announcement of Requirements and Registration for “EHR Accessibility Challenge”  

Federal Register 2010, 2011, 2012, 2013, 2014

...SUMMARY: The ``EHR Accessibility Challenge'' challenges...stored in their EHRs. Accessibility and usability in health...FURTHER INFORMATION CONTACT: Adam Wong, (202...disabilities. However, the accessibility and usability of HIT...gov Web site and search for the ``EHR...

2012-01-27

34

Secondary use of the EHR via pseudonymisation.  

PubMed

The Electronic Health Record (EHR) has many secondary uses, such as health economy and health care research, or disease specific clinical or epidemiological research. For these uses in general the patient identity is not needed, therefore the data must be anonymised or pseudonymised. Whereas for one-time use of the data this procedure is straightforward, long-term data accumulation or the necessity of re-identification require a more sophisticated approach. This paper describes possible model architectures, developed for medical research networks, but useful in other contexts as well. PMID:15747953

Pommerening, Klaus; Reng, Michael

2004-01-01

35

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

PubMed Central

Objective Despite efforts made by ambulatory care organizations to standardize the use of electronic health records (EHRs), practices often incorporate these systems into their work differently from each other. One potential factor contributing to these differences is within-practice communication patterns. The authors explore the linkage between within-practice communication patterns and practice-level EHR use patterns. Design Qualitative study of six practices operating within the same multi-specialty ambulatory care organization using the same EHR system. Semistructured interviews and direct observation were conducted with all physicians, nurses, medical assistants, practice managers, and non-clinical staff from each practice. Measurements An existing model of practice relationships was used to analyze communication patterns within the practices. Practice-level EHR use was defined and analyzed as the ways in which a practice uses an EHR as a collective or a group—including the degree of feature use, level of EHR-enabled communication, and frequency that EHR use changes in a practice. Interview and observation data were analyzed for themes. Based on these themes, within-practice communication patterns were categorized as fragmented or cohesive, and practice-level EHR use patterns were categorized as heterogeneous or homogeneous. Practices where EHR use was uniformly high across all users were further categorized as having standardized EHR use. Communication patterns and EHR use patterns were compared across the six practices. Results Within-practice communication patterns were associated with practice-level EHR use patterns. In practices where communication patterns were fragmented, EHR use was heterogeneous. In practices where communication patterns were cohesive, EHR use was homogeneous. Additional analysis revealed that practices that had achieved standardized EHR use (uniformly high EHR use across all users) exhibited high levels of mindfulness and respectful interaction, whereas practices that were furthest from achieving standardized EHR use exhibited low levels of mindfulness and respectful interaction. Conclusion Within-practice communication patterns provide a unique perspective for exploring the issue of standardization in EHR use. A major fallacy of setting homogeneous EHR use as the goal for practice-level EHR use is that practices with uniformly low EHR use could be considered successful. Achieving uniformly high EHR use across all users in a practice is more consistent with the goals of current EHR adoption and use efforts. It was found that some communication patterns among practice members may enable more standardized EHR use than others. Understanding the linkage between communication patterns and EHR use can inform understanding of the human element in EHR use and may provide key lessons for the implementation of EHRs and other health information technologies. PMID:21846780

Leykum, Luci K; McDaniel, Reuben R

2011-01-01

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

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

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.

Ames Research Center (ARC); National Aeronautics and Space Administration (NASA)

39

Patient opinion--EHR assessment from the users perspective.  

PubMed

Electronic Health Records (EHR) are becoming an integrated part of modern health care. The introduction of EHR in healthcare has been evaluated by many actors and from many perspectives. However, there is hardly any study exploring the opinion of the ultimate users of the system, the patients. This study aims to provide information about patient values and communication that will be useful in the design of a more patient friendly health system. We have asked patients in three different hospitals about their opinions about EHR, using semi structured individual interviews and focus groups. The patients are open to the use of EHR, but they have some concerns: they want their privacy to be respected, and the systems to be safe from the intrusion from outsiders. These results underline the general societal tendencies of citizen accepting the use of new technology, but being very keen to protect their privacy. PMID:15361031

Zurita, Laura; Nøhr, Christian

2004-01-01

40

42 CFR 495.210 - Meaningful EHR user attestation.  

Code of Federal Regulations, 2010 CFR

...Requirements Specific to Medicare Advantage (MA) Organizations § 495.210 Meaningful EHR user attestation. (a) Qualifying MA organizations are required to attest...manner specified by CMS, that each qualifying MA EP and qualifying MA-affiliated...

2010-10-01

41

The Use of Open Source and Web2.0 in Developing an Integrated EHR and E-learning System for the Greek Smoking Cessation Network  

Microsoft Academic Search

Technologies of in formation and communication are incrementally integrated with all facets of healthcare practice and education. Although Electronic Health Records (EHRs) have long been used in healthcare the introduction of open source tools has empowered their further expansion of use. Simultaneously the use of Web 2.0 tools has opened up new ways of enhancing both healthcare practice and education.

Stathis Th. Konstantinidis; Evdokimos I. Konstantinidis; Maria M. Nikolaidou; Afroditi K. Boutou; Nikos Havouzis; Paraskevi Argyropoulou; Panagiotis D. Bamidis

2009-01-01

42

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

43

Improving HIV/AIDS Knowledge Management Using EHRs  

PubMed Central

Background A primary goal for the development of EHRs and EHR-related technologies should be to facilitate greater knowledge management for improving individual and community health outcomes associated with HIV / AIDS. Most of the current developments of EHR have focused on providing data for research, patient care and prioritization of healthcare provider resources in other areas. More attention should be paid to using information from EHRs to assist local, state, national, and international entities engaged in HIV / AIDS care, research and prevention strategies. Unfortunately the technology and standards for HIV-specific reporting modules are still being developed. Methods: A literature search and review supplemented by the author’s own experiences with electronic health records and HIV / AIDS prevention strategies will be used. This data was used to identify both opportunities and challenges for improving public health informatics primarily through the use of latest innovations in EHRs. Qualitative analysis and suggestions are offered for how EHRs can support knowledge management and prevention strategies associated with HIV infection. Results: EHR information, including demographics, medical history, medication and allergies, immunization status, and other vital statistics can help public health practitioners to more quickly identify at-risk populations or environments; allocate scarce resources in the most efficient way; share information about successful, evidenced-based prevention strategies; and increase longevity and quality of life. Conclusion: Local, state, and federal entities need to work more collaboratively with NGOs, community-based organizations, and the private sector to eliminate barriers to implementation including cost, interoperability, accessibility, and information security. PMID:23569643

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

2012-01-01

44

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

45

Grid Computing Portals Lecture  

NSDL National Science Digital Library

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

Ferner, Clayton; Wilkinson, Barry

2011-07-05

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

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

48

Characteristics of Patient Portals Developed in the Context of Health Information Exchanges: Early Policy Effects of Incentives in the Meaningful Use Program in the United States  

PubMed Central

Background In 2014, the Centers for Medicare & Medicaid Services in the United States launched the second stage of its Electronic Health Record (EHR) Incentive Program, providing financial incentives to providers to meaningfully use their electronic health records to engage patients online. Patient portals are electronic means to engage patients by enabling secure access to personal medical records, communication with providers, various self-management tools, and administrative functionalities. Outcomes of patient portals have mainly been reported in large integrated health systems. This may now change as the EHR Incentive Program enables and supports the use of patient portals in other types of health systems. In this paper, we focus on Health Information Exchanges (HIE): entities that facilitate data exchange within networks of independent providers. Objective In response to the EHR Incentive Program, some Health Information Exchanges in the United States are developing patient portals and offering them to their network of providers. Such patient portals hold high value for patients, especially in fragmented health system contexts, due to the portals’ ability to integrate health information from an array of providers and give patients one access point to this information. Our aim was to report on the early effects of the EHR incentives on patient portal development by HIEs. Specifically, we describe the characteristics of these portals, identify factors affecting adoption by providers during the 2013-2014 time frame, and consider what may be the primary drivers of providers’ adoption of patient portals in the future. Methods We identified four HIEs that were developing patient portals as of spring 2014. We collected relevant documents and conducted interviews with six HIE leaders as well as two providers that were implementing the portals in their practices. We performed content analysis on these data to extract information pertinent to our study objectives. Results Our findings suggest that there are two primary types of patient portals available to providers in HIEs: (1) portals linked to EHRs of individual providers or health systems and (2) HIE-sponsored portals that link information from multiple providers’ EHRs. The decision of providers in the HIEs to adopt either one of these portals appears to be a trade-off between functionality, connectivity, and cost. Our findings also suggest that while the EHR Incentive Program is influencing these decisions, it may not be enough to drive adoption. Rather, patient demand for access to patient portals will be necessary to achieve widespread portal adoption and realization of potential benefits. Conclusions Optimizing patient value should be the main principle underlying policies intending to increase online patient engagement in the third stage of the EHR Incentive Program. We propose a number of features for the EHR Incentive Program that will enhance patient value and thereby support the growth and sustainability of patient portals provided by Health Information Exchanges. PMID:25447837

de Bont, Antoinette; van de Klundert, Joris; Rundall, Thomas G

2014-01-01

49

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

Compostela - Spain. IARTEM, Santiago de Compostela, 643-652. Gender and ICT in education : which RolePreprint 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

Paris-Sud XI, Université de

50

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

PubMed Central

Objective Electronic health records (EHR) hold great promise for managing patient information in ways that improve healthcare delivery. Physicians differ, however, in their use of this health information technology (IT), and these differences are not well understood. The authors study the differences in individual physicians' EHR use patterns and identify perceptions of uncertainty as an important new variable in understanding EHR use. Design Qualitative study using semi-structured interviews and direct observation of physicians (n=28) working in a multispecialty outpatient care organization. Measurements We identified physicians' perceptions of uncertainty as an important variable in understanding differences in EHR use patterns. Drawing on theories from the medical and organizational literatures, we identified three categories of perceptions of uncertainty: reduction, absorption, and hybrid. We used an existing model of EHR use to categorize physician EHR use patterns as high, medium, and low based on degree of feature use, level of EHR-enabled communication, and frequency that EHR use patterns change. Results Physicians' perceptions of uncertainty were distinctly associated with their EHR use patterns. Uncertainty reductionists tended to exhibit high levels of EHR use, uncertainty absorbers tended to exhibit low levels of EHR use, and physicians demonstrating both perspectives of uncertainty (hybrids) tended to exhibit medium levels of EHR use. Conclusions We find evidence linking physicians' perceptions of uncertainty with EHR use patterns. Study findings have implications for health IT research, practice, and policy, particularly in terms of impacting health IT design and implementation efforts in ways that consider differences in physicians' perceptions of uncertainty. PMID:23698256

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

2014-01-01

51

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

PubMed Central

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

Huser, Vojtech; Cimino, James J

2014-01-01

52

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

PubMed

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

Huser, Vojtech; Cimino, James J

2014-01-01

53

Risks, Barriers, and Benefits of EHR Systems: A Comparative Study Based on Size of Hospital  

Microsoft Academic Search

With the government backing the concept of electronic health records (EHR), and with technology being used in every walk of life, more and more hospitals are looking into implementing EHR systems. A national survey of U.S. hospitals was conducted in February\\/March 2005 to identify the status of EHR systems in hospitals regarding the core functionalities implemented (as identified by the

Minal Thakkar; Diane C. Davis

54

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 privacyDesigning a Secure Cloud-Based EHR System using Ciphertext-Policy Attribute-Based Encryption Suhair@cs.rit.edu ABSTRACT As more and more healthcare organizations adopt electronic health records (EHRs), the case

Radziszowski, Stanislaw P.

55

Semantic Integration of Patient Data and Quality Indicators based on openEHR Archetypes  

E-print Network

Semantic Integration of Patient Data and Quality Indicators based on openEHR Archetypes Kathrin, University of Amsterdam, The Netherlands Abstract. Electronic Health Record (EHRs) contain a wealth the (re)use of EHR data, and may be useful with regard to clinical quality indicators. These indicators

Hammerton, James

56

An Infrastructure for Secure Sharing of Medical Images between PACS and EHR Systems  

E-print Network

Repository (DI-r) systems within a standard EHR system; Acknowledgement. This research was conductedAn Infrastructure for Secure Sharing of Medical Images between PACS and EHR Systems Kamran Sartipi-wide electronic health records (EHR). In this approach, the cooperative agents provide: i) an action-based access

Sartipi, Kamran

57

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

58

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.

59

Analysis of Search on Clinical Narrative within the EHR  

ERIC Educational Resources Information Center

Electronic Health Records (EHRs) are used increasingly in the hospital and outpatient settings, and patients are amassing digitized clinical information. On one hand, aggregating all the patient's clinical information can greatly assist health care workers in making sound decisions. On the other hand, it can result in information overload,…

Natarajan, Karthik

2012-01-01

60

Towards Event Sequence Representation, Reasoning and Visualization for EHR Data  

E-print Network

Towards Event Sequence Representation, Reasoning and Visualization for EHR Data Cui Tao Dept. of Health Science Research Mayo Clinic Rochester, MN Krist Wongsuphasawat Human-Computer Interaction Lab. of Health Science Research Mayo Clinic Rochester, MN ABSTRACT Efficient analysis of event sequences

Golbeck, Jennifer

61

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.

62

Portal biliopathy  

PubMed Central

Biliary ductal changes are a common radiological finding in patients with portal hypertension, however only a small percentage of patients (5%-30%) develop symptomatic bile duct obstruction. The exact pathogenesis is not clear, but an involvement of factors such as bile duct compression by venous collaterals, ischemia, and infection is accepted by most authors. Although endoscopic retrograde cholangiopancreatography was used to define and diagnose this condition, magnetic resonance cholangiopancreatography is currently the investigation of choice for diagnosing this condition. Treatment is indicated only for symptomatic cases. Portosystemic shunts are the treatment of choice for symptomatic portal biliopathy. In the majority of patients, the changes caused by biliopathy resolve after shunt surgery, however, 15%-20% patients require a subsequent bilio-enteric bypass or endoscopic management for persistent biliopathy. There is a role for endoscopic therapy in patients with bile duct stones, cholangitis or when portosystemic shunt surgery is not feasible. PMID:23180936

Chattopadhyay, Somnath; Nundy, Samiran

2012-01-01

63

Considering User Satisfaction in Designing Web-Based Portals.  

ERIC Educational Resources Information Center

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

Zazelenchuk, Todd W.; Boling, Elizabeth

2003-01-01

64

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

65

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.

Community Surface Dynamics Modeling System

66

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

ERIC Educational Resources Information Center

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

Foley, Shawn

2011-01-01

67

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.

The Association of American Medical Colleges

2008-01-01

68

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

69

The use of open source and Web2.0 in developing an integrated EHR and e-learning system for the Greek Smoking Cessation Network.  

PubMed

Technologies of information and communication are incrementally integrated with all facets of healthcare practice and education. Although Electronic Health Records (EHRs) have long been used in healthcare the introduction of open source tools has empowered their further expansion of use. Simultaneously the use of Web 2.0 tools has opened up new ways of enhancing both healthcare practice and education. In this paper, we describe our approach towards the development of an integrated system supporting the smoking cessation network initiatives in the Greek public hospitals. The system combines the availability of an open source, web based EHR subsystem, with a Web 2.0 facilitated e-learning component for supporting continuing medical education and promoting public awareness. PMID:19745330

Konstantinidis, Stathis Th; Konstantinidis, Evdokimos; Nikolaidou, Maria M; Boutou, Afroditi K; Havouzis, Nikos; Argyropoulou, Paraskevi; Bamidis, Panagiotis D

2009-01-01

70

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.

71

The Association between EHRs and Care Coordination Varies by Team Cohesion  

PubMed Central

Objective To examine whether primary care team cohesion changes the association between using an integrated outpatient-inpatient electronic health record (EHR) and clinician-rated care coordination across delivery sites. Study Design Self-administered surveys of primary care clinicians in a large integrated delivery system, collected in 2005 (N=565), 2006 (N=678), and 2008 (N=626) during the staggered implementation of an integrated EHR (2005-2010), including validated questions on team cohesion. Using multivariable regression, we examined the combined effect of EHR use and team cohesion on three dimensions of care coordination across delivery sites: access to timely and complete information, treatment agreement, and responsibility agreement. Principal Findings Among clinicians working in teams with higher cohesion, EHR use was associated with significant improvements in reported access to timely and complete information (53.5% with EHR vs. 37.6% without integrated-EHR), agreement on treatment goals (64.3% vs. 50.6%), and agreement on responsibilities (63.9% vs. 55.2%, all p<0.05). We found no statistically significant association between use of the integrated-EHR and reported care coordination in less cohesive teams. Conclusion The association between EHR use and reported care coordination varied by level of team cohesion. EHRs may not improve care coordination in less cohesive teams. PMID:24359592

Graetz, Ilana; Shortell, Stephen M.; Rundall, Thomas G.; Bellows, Jim; Hsu, John

2014-01-01

72

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

73

National Science Foundation Facilitation of AGU Scientists' K-14 Education and Outreach Activities  

NASA Astrophysics Data System (ADS)

The National Science Foundation encourages the participation of geoscientists in K-14 education and outreach and provides support for that participation through a wide variety of programs. At the most general level, NSF requires that scientists describe the broader impacts of their research in their proposals. While broader impacts are not restricted to education and outreach, this requirement has encouraged many scientists to consider opportunities for K-14 education and outreach. Many NSF-wide programs provide financial support for K-14 education and outreach. Some are long-standing programs like Research Experiences for Undergraduates (REU), which have been used effectively by the geoscience community to introduce undergraduates to our field. Other programs, like CAREER, encourage faculty to develop innovative teaching and curricular approaches and to relate them to their research program. The Education and Human Resources Directorate (EHR) of NSF provides funds for a variety of undergraduate education improvements, and for elementary and secondary education activities. EHR also provides opportunities for informal education that have been used by the geoscience community to develop museum exhibits, IMAX films, television programs, and other high visibility outreach activities. The Directorate for Geosciences (GEO) holds competitions in the Geoscience Education Program and Opportunities to Enhance Diversity in the Geosciences that provide funds focused on development in our own field. Other specialized competitions, like awards associated with the Center for Ocean Science Education Excellence, have targeted the specific K-14 education and outreach needs of portions of our community. Finally, GEO has facilitated the development of the Digital Library for Earth System Education (DLESE) that has established a digital portal to age-appropriate, peer-reviewed curricular material for teachers.

Leinen, M.; Prendeville, J.

2002-12-01

74

uPortal 2.0.1  

NSDL National Science Digital Library

Presented by Java Administration Special Interest Group (JA-SIG), uPortal is a free, sharable portal constructed by institutions of higher-education. This portal is designed to create an online relationship among campus constituencies by providing community tools such as chats, forums, surveys, and more. An open-standard effort that uses Java, XML, JSP, and J2EE, uPortal is available as both a "quick-start" release package that includes a servlet container and database, and also as a "uPortal-only" package, which needs to be installed into an existing servlet container and connected to existing data repositories such as LDAP and a relational database.

75

Meaningful Use and the Patient Portal: Patient Enrollment, Use, and Satisfaction With Patient Portals at a Later-Adopting Center.  

PubMed

Many physicians are adopting patient portals in response to governmental incentives for meaningful use (MU), but the stage 2 requirements for portal use may be particularly challenging for newer electronic health record (EHR) users. This study examined enrollment, use based on MU requirements, and satisfaction in a recently adopting fee-for-service multispecialty system. Between 2010 and 2012, overall portal enrollment increased from 13.2% to 23.1% but varied substantially by physician specialty. In 2013, more than 97% of physicians would have met requirements for a stage 2 MU utilization measure requiring that patients download personal health information, but only 38% of all physicians (87% of primary care physicians [PCPs] and 37% of other specialists) would have met e-mail requirements. Satisfaction with the portal overall and with portal-based e-mails was high. These results suggest that later-adopting PCPs can succeed in providing satisfactory record and e-mail access but specialists may find reaching e-mail thresholds more difficult. PMID:24563085

Neuner, Joan; Fedders, Megan; Caravella, Mary; Bradford, Lisa; Schapira, Marilyn

2014-02-21

76

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

77

Portal Wisconsin  

NSDL National Science Digital Library

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

2003-01-01

78

Improving EHR semantic interoperability: future vision and challenges.  

PubMed

We propose a semantic-driven architecture to improve EHR semantic interoperability. This architecture is constituted by five layers: structured heterogeneous data (i), as found in (un-)standardised clinical information models, which are consumed by a semantic mapping layer (ii), which links the data items to clinical ontologies via user-friendly content patterns. A semantic mediator (iii) then translates these content patterns into ontology-based annotations, which populate a virtual homogeneous data store (iv), which serves the application layer (v). PMID:25160254

Martínez-Costa, Catalina; Kalra, Dipak; Schulz, Stefan

2014-01-01

79

Healthcare professionals' experiences with EHR-system access control mechanisms.  

PubMed

Access control mechanisms might influence on the information seeking and documentation behavior of clinicians. In this study, we have surveyed healthcare professionals in nursing homes and hospitals on their attitudes to, and experiences with using access control mechanisms. In some situations, the access control mechanisms of the EHR system made clinicians postpone documentation work. Their practice of reading what others have documented was also influenced. Not all clinicians logged out of the system when they left a workstation, and some clinicians reported to do some of their documentation work in the name of others. The reported practices might have implications for the safety of the patient. PMID:21893819

Faxvaag, Arild; Johansen, Trond S; Heimly, Vigdis; Melby, Line; Grimsmo, Anders

2011-01-01

80

EHR in the perspective of security, integrity and ethics.  

PubMed

Success stories of modern applications in healthcare and welfare, like the electronic health record, are always linked to end user awareness, confidence, and acceptance. Reports and surveys have given proof of these dependencies. Knowing about existing and emerging concerns and weaknesses right in advance allows to taking actions on an ethical, social, and societal level. This paper gives a review of specific observations regarding security, privacy, authentication, integrity and ethical aspects when operating an electronic health record (EHR) system in a hospital, an open care department and in a wider community of the health care sector. A reference is given to existing and emerging international standards related to the aforementioned aspects. PMID:17095827

Nordberg, Ragnar

2006-01-01

81

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

82

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

83

An Infrastructure for Secure Sharing of Medical Images between PACS and EHR Systems  

E-print Network

An Infrastructure for Secure Sharing of Medical Images between PACS and EHR Systems Kamran Sartipi health records (EHR). In this approach, the cooperative agents provide: i) an action-based access control mechanism to Acknowledgement. This research was conducted with collaboration of Dr. David Koff and Dr. Peter

Sartipi, Kamran

84

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

E-print Network

HCPP: Cryptography Based Secure EHR System for Patient Privacy and Emergency Healthcare Jinyuan Sun a secure EHR system, HCPP (Healthcare system for Patient Privacy), based on cryptographic constructions types of disease may be discriminated by the healthcare provider, and so on. However, fundamental

Latchman, Haniph A.

85

Development of fundamental infrastructure for nationwide EHR in Japan.  

PubMed

The movement of create medical information systems that is now taking place involves both progress in EMR (Electronic Medical Records)-computerization of records at hospitals and clinics, and also in EHR (Electronic Health Records) in which information is shared with individual regions. However, the geographical coming and going of people in modern society is extremely active. Naturally the places these people move to are not necessarily within the same region. For this reason, even if the basic unit for the health care supply system is in practical terms limited to the local level, if services are restricted to only one region, many persons may be unable to receive the benefits of health care cooperation. In this study, we constructed a mechanism for a medical cooperation system which links the EHR systems of individual regions and is able to create a one-patient, one-record system on the national level. In this paper, we will provide a report of this mechanism and of the 4-year operational trial. PMID:21455698

Takemura, Tadamasa; Araki, Kenji; Arita, Kenji; Suzuki, Toshiaki; Okamoto, Kazuya; Kume, Naoto; Kuroda, Tomohiro; Takada, Akira; Yoshihara, Hiroyuki

2012-08-01

86

Portal radiation monitor  

DOEpatents

A portal radiation monitor combines .1% FAR with high sensitivity to special nuclear material. The monitor utilizes pulse shape discrimination, dynamic compression of the photomultiplier output and scintillators sized to maintain efficiency over the entire portal area.

Kruse, L.W.

1982-03-23

87

Portal radiation monitor  

DOEpatents

A portal radiation monitor combines 0.1% FAR with high sensitivity to special nuclear material. The monitor utilizes pulse shape discrimination, dynamic compression of the photomultiplier output and scintillators sized to maintain efficiency over the entire portal area.

Kruse, Lyle W. (Albuquerque, NM)

1985-01-01

88

EHR Definition, Attributes and Essential Requirements Version 1.0 HIMSS Page 1 11/6/2003  

E-print Network

EHR Definition, Attributes and Essential Requirements Version 1.0 HIMSS Page 1 11/6/2003 HIMSS Thomas Handler, MD. Research Director, Gartner Rick Holtmeier, President, Berdy Systems Jane Metzger, VP practices by 2010. The EHR Definition Model includes an operational EHR definition, key attributes

Abidi, Syed Sibte Raza

89

Semantic community Web portals  

Microsoft Academic Search

Community Web portals serve as portals for the information needs of particular communities on the Web. We here discuss how a comprehensive and flexible strategy for building and maintaining a high-value community Web portal has been conceived and implemented. The strategy includes collaborative information provisioning by the community members. It is based on an ontology as a semantic backbone for

Steffen Staab; Jürgen Angele; Stefan Decker; Michael Erdmann; Andreas Hotho; Alexander Maedche; Hans-peter Schnurr; Rudi Studer; York Sure

2000-01-01

90

The Advent of Portals.  

ERIC Educational Resources Information Center

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

Jackson, Mary E.

2002-01-01

91

78 FR 78401 - Advisory Committee for Education and Human Resources; Notice of Meeting  

Federal Register 2010, 2011, 2012, 2013, 2014

...Advisory Committee for Education and Human Resources; Notice of Meeting In accordance...Advisory Committee for Education and Human Resources ( 1119). Date/Time...Directorate for Education and Human Resources (ehr_ac@nsf.gov) at...

2013-12-26

92

Reasons (Not) to Spend a Few Billions More on EHRs: How Human Factors Research Can Help  

PubMed Central

Summary Objectives To select best medical informatics research works published in 2013 on electronic health record (EHR) adoption, design, and impact, from the perspective of human factors and organizational issues (HFOI). Methods We selected 2,764 papers by querying PubMed (Mesh and TIAB) as well as using a manual search. Papers were evaluated based on pre-defined exclusion and inclusion criteria from their title, keywords, and abstract to select 15 candidate best papers, finally reviewed by 4 external reviewers using a standard evaluation grid. Results Five papers were selected as best papers to illustrate how human factors approaches can improve EHR adoption and design. Among other contributions, these works: (i) make use of the observational and analysis methodologies of social and cognitive sciences to understand clinicians’ attitudes towards EHRs, EHR use patterns, and impact on care processes, workflows, information exchange, and coordination of care; (ii) take into account macro- (environmental) and meso- (organizational) level factors to analyze EHR adoption or lack thereof; (iii) highlight the need for qualitative studies to analyze the unexpected side effects of EHRs on cognitive and work processes as well as the persistent use of paper. Conclusion Selected papers tend to demonstrate that HFOI approaches and methodologies are essential to bridge the gap between EHR systems and end users, and to reduce regularly reported adoption failures and unexpected consequences. PMID:25123727

Aimé, X.

2014-01-01

93

Architecture and tools for open, interoperable and portable EHRs.  

PubMed

Electronic Health Record (EHR) systems provide the kernel application of health information systems and health networks which should be independent of complexity, localisation constraints, platforms, protocols, etc. Based on shared care information systems' requirements for high level interoperability, a generic component architecture has been introduced. For implementing, running and maintaining acceptable and useable health information systems components, all views of the ISO Reference Model--Open Distributed Processing have to be considered. Following the Model Driven Architecture paradigm, a reference model as well as concept-representing domain models both independent of platforms must be specified, which are combined and harmonised as well as automatically transferred into platform-specific models using appropriate tools. PMID:15537227

Blobel, Bernd

2003-01-01

94

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.

95

The Portal to Texas History  

NSDL National Science Digital Library

If you're looking for anything from an ancestor's picture in a college year book to a rare historical map, you'll find much to enjoy here at the Portal to Texas History. This project is hosted by the University of North Texas Libraries and the site has grown exponentially since it began over a decade ago. First-time users can look over the Featured Collections on the homepage to get a feel for the documents offered in the portal. Additionally, the Search area allows users to look through books, maps, photos, and newspapers of note. All told, there are over 390,000 unique items and the collection is particularly strong in terms of late 19th and early 20th century items. Teachers shouldn't miss the Resources 4 Educators section that includes activities for K-12 teachers, along with selected primary sources on specific topics, including Sam Houston and Native Americans in Texas.

2002-01-01

96

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

97

Method to integrate clinical guidelines into the electronic health record (EHR) by applying the archetypes approach.  

PubMed

Clinical guidelines are documents that assist healthcare professionals, facilitating and standardizing diagnosis, management, and treatment in specific areas. Computerized guidelines as decision support systems (DSS) attempt to increase the performance of tasks and facilitate the use of guidelines. Most DSS are not integrated into the electronic health record (EHR), ordering some degree of rework especially related to data collection. This study's objective was to present a method for integrating clinical guidelines into the EHR. The study developed first a way to identify data and rules contained in the guidelines, and then incorporate rules into an archetype-based EHR. The proposed method tested was anemia treatment in the Chronic Kidney Disease Guideline. The phases of the method are: data and rules identification; archetypes elaboration; rules definition and inclusion in inference engine; and DSS-EHR integration and validation. The main feature of the proposed method is that it is generic and can be applied toany type of guideline. PMID:23920682

Garcia, Diego; Moro, Claudia Maria Cabral; Cicogna, Paulo Eduardo; Carvalho, Deborah Ribeiro

2013-01-01

98

A framework for privacy-preserving access to next-generation EHRs.  

PubMed

Although personalized medicine is optimizing the discovery, development and application of therapeutic advances, its full impact on patient and population healthcare management has yet to be realized. Electronic health Records (EHRs), integrated with data from other sources, such as social care data, Personal Healthcare Record (PHR) data and genetic information, are envisaged as having a pivotal role in realizing this individualized approach to healthcare. Thus, a new generation of EHRs will emerge which, in addition to supporting healthcare professionals in making well-informed clinical decisions, shows potential for novel discovery of associations between disease and genetic, environmental or process measures. However, a broad range of ethical, legal and technical reasons may hinder the realization of future EHRs due to potential security and privacy breaches. This paper presents a HIPAA-compliant framework that enables privacy-preserving access to next-generation EHRs. PMID:25160285

Koufi, Vassiliki; Malamateniou, Flora; Tsohou, Aggeliki; Vassilacopoulos, George

2014-01-01

99

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

PubMed

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

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

2014-06-01

100

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

PubMed Central

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

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

2014-01-01

101

Electronic Health Record (EHR) As a Vehicle for Successful Health Care Best Practice  

PubMed Central

Objective: application of EHR in journey toward the development and adaptation of best practice approach in health care has particular importance. The aim of this review article is survey of successful best practice through EHR. Methods: In this literature review articles were searched with keywords like Electronic Health Record, Best Practice in Science Direct, Google Scholar and Pub Med databases since 1999. Results: best practice in health care through some services like utilization management, case management, and information technology tools can perform. Utilization management in combination with evidence based medicine facilitate determine best decision. Health records are based on evidence medicine and be the richest source of health information. Definitely use of EHR has play pivotal role in journey toward the development and adaptation of best practice approach. Conclusion: Because of potential capabilities, EHR can be regarded as a main core and fundamental element in best practice approach. Success implementation of EHR relies on many factors that should be considered. Some critical success factors for EHR implementation that should be noted are change management, Physicians, nurses and key stakeholders involvement, leadership, provide reliable information technology infrastructure, system design, privacy and security, right budget, support high level management, clear communicate, determine goals and user needs, and define roles and responsibilities, interoperability standards. PMID:25648601

Ghazisaeedi, Marjan; Mohammadzadeh, Niloofar; Safdari, Reza

2014-01-01

102

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

103

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. 

104

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

105

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

106

The quail anatomy portal  

PubMed Central

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

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

2014-01-01

107

It's a Bird. It's a Plane. It's a...Portal?: What Is a Campus Portal Strategy and Why Do You Need One?  

ERIC Educational Resources Information Center

Describes the results of a recent forum, and subsequent conference, on the subject of portals and e-business in higher education. Participants, who included financial and information technology professionals, agreed that implementation of portal strategy is necessary, perilous, and difficult in higher education. Colleges and universities will have…

Katz, Richard N.

2000-01-01

108

Low Fibronectin in Portal Hypertension  

Microsoft Academic Search

We have measured plasma fibronectin in 28 patients with well-compensated chronic liver disease, 4 patients with non-cirrhotic portal hypertension and 6 patients who have undergone shunt surgery for the relief of portal hypertension and splenectomy. 17 patients with portal hypertension had significantly lower levels of fibronectin (207 ± 54; mean ± SD) compared with 15 patients without portal hypertension (315

P. N. Foster; Margaret Bowen; P. D. Howdle; M. S. Losowsky

1983-01-01

109

Portal Vein Thrombosis.  

PubMed

Portal vein thrombosis (PVT) is a rare event in the general medical setting that commonly complicates cirrhosis with portal hypertension, and can also occur with liver tumors. The diagnosis is often incidental when a thrombus is found in the portal vein on imaging tests. However, PVT may also present with clinical symptoms and can progress to life-threatening complications of ischemic hepatitis, liver failure, and/or small intestinal infarction. This article reviews the pathophysiology of this disorder, with a major focus on PVT in patients with cirrhosis, and presents detailed guidelines on optimal diagnostic and therapeutic strategies. PMID:25454305

Basit, Syed Abdul; Stone, Christian D; Gish, Robert

2015-02-01

110

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

111

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.

112

Reagents Data Portal Antibodies  

Cancer.gov

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

113

Space Development Grid Portal  

NASA Technical Reports Server (NTRS)

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

Vaziri, Arsi

2004-01-01

114

Climate change portal established  

NASA Astrophysics Data System (ADS)

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

Showstack, Randy

2011-12-01

115

Forest Conservation Portal  

NSDL National Science Digital Library

The Forest Conservation Portal is maintained by Forests.org, a non-governmental organization dedicated to "ending deforestation, preserving old-growth forests, conserving all forests, maintaining climatic systems and commencing the age of ecological restoration." At the Portal, users will find a large series of news articles and resources on forests, forest regions, forest ecology, forest destruction and protection, and related information. Intended for activists and activism, this site contains current news with international coverage.

116

Management: Cirrhotic Portal Hypertension  

Microsoft Academic Search

\\u000a Gastroesophageal varices are a direct consequence of portal hypertension, the main complication of cirrhosis. An understanding\\u000a of the pathophysio­logy of portal hypertension has led to significant improvements in the prevention and treatment of variceal\\u000a hemorrhage. However, variceal hemorrhage continues to carry a significant mortality. By screening all patients with cirrhosis\\u000a for varices, applying prophylaxis appropriately, actively managing acute variceal hemorrhage,

Joseph K. Lim; Guadalupe Garcia-Tsao

117

Comparing the APGAR score representation in HL7 and OpenEHR formalisms.  

PubMed

Semantic interoperability, a prerequisite to eHealth projects, relies on sharing both information and knowledge models between information systems. Two of the standards of information models are HL7 v3 and the European norm, EN13606/OpenEHR. The paper compares both standards on a fragment of the prenatal medical record, the APGAR score. Two factors are compared: the formal representation of both information models, and the binding to knowledge models. The HL7v3 perinatality DMIM specification and the OpenEHR APGAR archetype were used. HL7v3 appears to be more formal than OpenEHR and able to represent in an easier way the clinical context. For both standards, the binding to reference terminologies such as LOINC is poor. We provide recommendations to improve the standards. PMID:19745308

Cuggia, Marc; Bayat, Sahar; Rossille, Delphine; Poulain, Patrice; Pladys, Patrick; Robert, Hélène; Duvauferrier, Régis

2009-01-01

118

Impact of a Prototype Visualization Tool for New Information in EHR Clinical Documents  

PubMed Central

Background EHR clinical document synthesis by clinicians may be time-consuming and error-prone due to the complex organization of narratives, excessive redundancy within documents, and, at times, inadvertent proliferation of data inconsistencies. Development of EHR systems that are easily adaptable to the user’s work processes requires research into visualization techniques that can optimize information synthesis at the point of care. Objective To evaluate the effect of a prototype visualization tool for clinically relevant new information on clinicians’ synthesis of EHR clinical documents and to understand how the tool may support future designs of clinical document user interfaces. Methods A mixed methods approach to analyze the impact of the visualization tool was used with a sample of eight medical interns as they synthesized EHR clinical documents to accomplish a set of four pre-formed clinical scenarios using a think-aloud protocol. Results Differences in the missing (unretrieved) patient information (2.3±1.2 [with the visualization tool] vs. 6.8±1.2 [without the visualization tool], p = 0.08) and accurate inferences (1.3±0.3 vs 2.3±0.3, p = 0.09) were not statistically significant but suggest some improvement with the new information visualization tool. Despite the non-significant difference in total times to task completion (43±4 mins vs 36±4 mins, p = 0.35) we observed shorter times for two scenarios with the visualization tool, suggesting that the time-saving benefits may be more evident with certain clinical processes. Other observed effects of the tool include more intuitive navigation between patient details and increased efforts towards methodical synthesis of clinical documents. Conclusion Our study provides some evidence that new information visualization in clinical notes may positively influence synthesis of patient information from EHR clinical documents. Our findings provide groundwork towards a more effective display of EHR clinical documents using advanced visualization applications. PMID:23646087

Farri, O.; Rahman, A.; Monsen, K.A.; Zhang, R.; Pakhomov, S.V.; Pieczkiewicz, D.S.; Speedie, S.M.; Melton, G.B.

2012-01-01

119

Using Electronic Health Records for Clinical Research: the Case of the EHR4CR Project.  

PubMed

Objectives To describe the IMI EHR4CR project which is designing and developing, and aims to demonstrate, a scalable, widely acceptable and efficient approach to interoperability between EHR systems and clinical research systems. Methods The IMI EHR4CR project is combining and extending several previously isolated state-of-the-art technical components through a new approach to develop a platform for reusing EHR data to support medical research. This will be achieved through multiple but unified initiatives across different major disease areas (e.g. cardiovascular, cancer) and clinical research use cases (protocol feasibility, patient identification and recruitment, clinical trial execution and serious adverse event reporting), with various local and national stakeholders across several countries and therefore under various legal frameworks. Results An initial instance of the platform has been built, providing communication, security and terminology services to the eleven participating hospitals and ten pharmaceutical companies located in seven European countries. Proof-of-concept demonstrators have been built and evaluated for the protocol feasibility and patient recruitment scenarios. The specifications of the clinical trial execution and the adverse event reporting scenarios have been documented and reviewed. Conclusions Through a combination of a consortium that brings collectively many years of experience from previous relevant EU projects and of the global conduct of clinical trials, of an approach to ethics that engages many important stakeholders across Europe to ensure acceptability, of a robust iterative design methodology for the platform services that is anchored on requirements of an underlying Service Oriented Architecture that has been designed to be scalable and adaptable, EHR4CR could be well placed to deliver a sound, useful and well accepted pan-European solution for the reuse of hospital EHR data to support clinical research studies. PMID:25463966

Moor, Georges De; Sundgren, Mats; Kalra, Dipak; Schmidt, Andreas; Dugas, Martin; Claerhout, Brecht; Karakoyun, Töresin; Ohmann, Christian; Lastic, Pierre-Yves; Ammour, Nadir; Kush, Rebecca; Dupont, Danielle; Cuggia, Marc; Daniel, Christel; Thienpont, Geert; Coorevits, Pascal

2014-10-18

120

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

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

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

121

A systematic review of electronic portal usage among patients with diabetes.  

PubMed

The objectives of this review were (1) to examine characteristics associated with enrollment and utilization of portals among patients with diabetes and (2) to identify barriers and facilitators of electronic patient portal enrollment and utilization. PubMed and the Cumulative Index to Nursing and Allied Health Literature (CINAHL) were systematically searched for papers reporting original research using quantitative or qualitative methods on characteristics, barriers, and facilitators associated with portal enrollment and utilization among patients with diabetes in the United States. The search was limited to articles published between February 1, 2005 (the date of the national symposium on personal health records) and January 1, 2014. Sixteen articles were identified. Of these, nine were quantitative, three were qualitative, and four used mixed-methods. Several demographic characteristics, having better-controlled diabetes, and providers who engaged in and encouraged portal use were associated with increased portal enrollment and utilization. Barriers to portal enrollment included a lack of patient (1) capacity, (2) desire, and (3) awareness of portal/portal functions. Barriers to portal utilization included (1) patient capacity, (2) lack of provider and patient buy-in to portal benefits, and (3) negative patient experiences using portals. Facilitators of portal enrollment and utilization were providers and family members recommending and engaging in portal use. Improved usability, increased access, educating patients how to use and benefit from portals, and greater endorsement by providers and family members might increase portal enrollment and utilization. As more providers and hospitals offer portals, addressing barriers and leveraging facilitators may help patients with diabetes achieve potential benefits. PMID:24999599

Amante, Daniel J; Hogan, Timothy P; Pagoto, Sherry L; English, Thomas M

2014-11-01

122

Target detection portal  

SciTech Connect

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

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

2002-01-01

123

Item 57566 Pre-auth Warning When Planning Procedure Module: EHR Chart Add, Treatment Planning  

E-print Network

Dentition Set Module: EHR ­ Chart Issue: Currently there are only two dentition options; All Primary or All Permanent. There is no option for mixed dentition for patients between phases unless the teeth were changed individually. Enhancement: Added the right-click option Mixed Dentition to display the following pre- defined

Cui, Yan

124

On the seamless, harmonized use of ISO/IEEE11073 and openEHR.  

PubMed

Standardized exchange of clinical information is a key factor in the provision of high quality health care systems. In this context, the openEHR specification facilitates the management of health data in electronic health records (EHRs), while the ISO/IEEE11073 (also referred to as X73PHD) family of standards provides a reference framework for medical device interoperability. Hospitals and health care providers using openEHR require flawless integration of data coming from external sources, such as X73PHD. Hence, a harmonization process is crucial for achieving a seamless, coherent use of those specifications in real scenarios. Such harmonization is the aim of this paper. Thus, the classes and attributes of a representative number of X73PHD specializations for medical devices--weight, temperature, blood pressure, pulse and heart rate, oximetry, and electrocardiograph--along with the X73PHD core document--ISO/IEEE11073-20601--have been analyzed and mapped to openEHR archetypes. The proposed methodology reuses the existing archetypes when possible and suggests new ones--or appropriate modifications--otherwise. As a result, this paper analyzes the inconsistencies found and the implications thereof in the coordinated use of these two standards. The procedure has also shown how existing standards are able to influence the archetype development process, enhancing the existing archetype corpus. PMID:24132031

Trigo, Jesús D; Kohl, Christian D; Eguzkiza, Aitor; Martínez-Espronceda, Miguel; Alesanco, Álvaro; Serrano, Luis; García, José; Knaup, Petra

2014-05-01

125

Security challenges in integration of a PHR-S into a standards based national EHR.  

PubMed

Health related data provided by patients themselves is expected to play a major role in future healthcare. Data from personal health devices, vaccination records, health diaries or observations of daily living, for instance, is stored in personal health records (PHR) which are maintained by personal health record systems (PHR-S). Combining this information with medical records provided by healthcare providers in electronic health records (EHR) is one of the next steps towards "personal care". Austria currently sets up a nationwide EHR system that incorporates all healthcare providers and is technically based on international standards (IHE, HL7, OASIS, ...). Looking at the expected potential of merging PHR and EHR data it is worth to analyse integration approaches. Although knowing that an integration requires the coordination of processes, information models and technical architectures, this paper specifically focuses on security issues by evaluating general security requirements for a PHR-S (based on HL7 PHR-S FM), comparing them with the information security specifications for the Austrian's national EHR (based on ISO/IES 27000 series) and identifying the main challenges as well as possible approaches. PMID:25160182

Mense, Alexander; Hoheiser Pförtner, Franz; Sauermann, Stefan

2014-01-01

126

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

PubMed

Clinical research is the foundation for advancing the practice of medicine. However, the lack of seamless integration between clinical research and patient care workflow impedes recruitment efficiency, escalates research costs, and hence threatens the entire clinical research enterprise. Increased use of electronic health records (EHRs) holds promise for facilitating this integration but must surmount regulatory obstacles. Among the unintended consequences of current research oversight are barriers to accessing patient information for prescreening and recruitment, coordinating scheduling of clinical and research visits, and reconciling information about clinical and research drugs. We conclude that the EHR alone cannot overcome barriers in conducting clinical trials and comparative effectiveness research. Patient privacy and human subject protection policies should be clarified at the local level to exploit optimally the full potential of EHRs, while continuing to ensure participant safety. Increased alignment of policies that regulate the clinical and research use of EHRs could help fulfill the vision of more efficiently obtaining clinical research evidence to improve human health. PMID:22542813

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

2012-01-01

127

Evaluation of a Hyperlinked Consumer Health Dictionary for reading EHR notes.  

PubMed

In this paper, we report on a pilot study conducted to test the usefulness and understandability of definitions in a Consumer Health Dictionary (IVS-CHD). Our two main goals for this study were to evaluate functionality of the dictionary when embedded in electronic health records (EHR) and determine the methodology for our larger-scale project to iteratively develop the IVS-CHD. The hyperlinked IVS-CHD was made available to thoracic surgery patients reading their own EHR. We asked patients to rate definitions on two 5-level Likert items measuring perceived usefulness and understandability. We also captured the terms that patients wanted defined, but that were not included in the IVS-CHD. Preliminary results indicate the types of problems that must be avoided when creating definitions, for example, that patients prefer detailed explanations that include medical outcomes, and that do not use "unfamiliar" terms they must also look up. We also have gained insight into the types of terms that patients want defined from their EHR notes, especially certain abbreviations. Patients further commented on the experience of reading EHR notes directly from the same system used by healthcare personnel and the help strategy of linking the contents to a hyperlinked dictionary. PMID:21893710

Slaughter, Laura; Oyri, Karl; Fosse, Erik

2011-01-01

128

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

129

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

130

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

131

Idiopathic portal hypertension in an \\  

Microsoft Academic Search

Idiopathic portal hypertension belongs to the group of non-cirrhotic portal hypertension, its etiology is still unknown but its prognosis is excellent. We report a case of 45 year old female with inactive hepatitis B virus (HBV) carrier status and persistently elevated alpha-fetoprotein (AFP), presented with features of portal hypertension and without evidence of cirrhosis or fibrosis on liver biopsy.

Themistoklis G Vassiliadis; Anthia Gatopoulou; Kaliopi Patsiaoura; Olga Giouleme; Konstantinos Soufleris; Alexandros Boubonaris; Panagiotis Katsinelos; Nikolaos Eugenidis

2008-01-01

132

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

133

Plant Genome Research Outreach Portal  

NSDL National Science Digital Library

Based at the Iowa State University, the mission of the Plant Genome Research Outreach Portal (PGROP) is "to provide a centralized access point for location plant genome research outreach activities, programs and resources." The site contains fact sheets, lesson plans, and other materials for students and educators, including specifically themed resources on crops like maize, rice, sorghum, soybeans, and wheat. On the right-hand side of the page, visitors can use the "New and Noteworthy" area which contains links to genome databases like the Maize Genetics & Genomics database and the helpful "Fast Plants" website. Also, the "Resources Concerning" area includes peer-vetted links organized by topics like bioinformatics, genomics, molecular biology, and DNA. Finally, the site also contains the detailed report of the National Plant Genome Initiative.

134

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.

135

Treatment of portal hypertension  

PubMed Central

Portal hypertension is the main complication of cirrhosis and is defined as an hepatic venous pressure gradient (HVPG) of more than 5 mmHg. Clinically significant portal hypertension is defined as HVPG of 10 mmHg or more. Development of gastroesophageal varices and variceal hemorrhage are the most direct consequence of portal hypertension. Over the last decades significant advancements in the field have led to standard treatment options. These clinical recommendations have evolved mostly as a result of randomized controlled trials and consensus conferences among experts where existing evidence has been reviewed and future goals for research and practice guidelines have been proposed. Management of varices/variceal hemorrhage is based on the clinical stage of portal hypertension. No specific treatment has shown to prevent the formation of varices. Prevention of first variceal hemorrhage depends on the size/characteristics of varices. In patients with small varices and high risk of bleeding, non-selective ?-blockers are recommended, while patients with medium/large varices can be treated with either ?-blockers or esophageal band ligation. Standard of care for acute variceal hemorrhage consists of vasoactive drugs, endoscopic band ligation and antibiotics prophylaxis. Transjugular intrahepatic portosystemic shunt (TIPS) is reserved for those who fail standard of care or for patients who are likely to fail (“early TIPS”). Prevention of recurrent variceal hemorrhage consists of the combination of ?-blockers and endoscopic band ligation. PMID:22468079

Bari, Khurram; Garcia-Tsao, Guadalupe

2012-01-01

136

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

137

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

138

Using EHR data for monitoring and promoting patient safety: reviewing the evidence on trigger tools.  

PubMed

Trigger tools, both paper and automated, have been viewed as a promising technology for patient record content analysis and identification of patient safety adverse events. The requirements and potential barriers for implementation of each line of tools have been explored by means of a literature review focusing on two interconnected subject areas: the Institute of Healthcare Improvement's paper-based Global Trigger Tool, which is currently taken up by several national level patient safety programs, and automated trigger tools, because of their increased feasibility as electronic health record (EHR) adoption grows. This paper provides an overview of the existing evidence on the strengths and weaknesses of each approach, and discusses the implications of the findings from the perspectives of healthcare organizations' management and staff, and from the viewpoint of demands on EHR systems. PMID:22874299

Doupi, Persephone

2012-01-01

139

A cloud-based approach for interoperable electronic health records (EHRs).  

PubMed

We present a cloud-based approach for the design of interoperable electronic health record (EHR) systems. Cloud computing environments provide several benefits to all the stakeholders in the healthcare ecosystem (patients, providers, payers, etc.). Lack of data interoperability standards and solutions has been a major obstacle in the exchange of healthcare data between different stakeholders. We propose an EHR system - cloud health information systems technology architecture (CHISTAR) that achieves semantic interoperability through the use of a generic design methodology which uses a reference model that defines a general purpose set of data structures and an archetype model that defines the clinical data attributes. CHISTAR application components are designed using the cloud component model approach that comprises of loosely coupled components that communicate asynchronously. In this paper, we describe the high-level design of CHISTAR and the approaches for semantic interoperability, data integration, and security. PMID:25055368

Bahga, Arshdeep; Madisetti, Vijay K

2013-09-01

140

Standardized EHR interoperability - preliminary results of a German pilot project using the archetype methodology.  

PubMed

The mobility of doctors and patients asks for multilingualism of electronic health record (EHR) systems: Doctors might face language problems using foreign medical information systems; people working abroad ask for continuous care which requires the treating physician to consult and understand the patient's health record. To address these linguistic and interoperability issues a solution is being developed that is based on widely acclaimed standards. Medical concepts that are derived from ASTM CCR define an interface model (based on ISO 13606). A server manages the data exchange between heterogeneous systems based on the interface model. It provides web services (automatic) and web forms (manual) and performs a transformation from the legacy scheme to the common structure. Furthermore, the server provides rich visualization capabilities (e.g. language-switch, custom charts etc.) which are useful for those EHR systems that don't provide these features. PMID:22874271

Veseli, Hasan; Kopanitsa, Georgy; Demski, Hans

2012-01-01

141

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

142

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

143

The Portal Project  

Microsoft Academic Search

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

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

2005-01-01

144

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

145

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.; Büchler, Markus W.; Schmitz-Winnenthal, Friedrich H.

2014-01-01

146

Incorporating temporal EHR data in predictive models for risk stratification of renal function deterioration.  

PubMed

Predictive models built using temporal data in electronic health records (EHRs) can potentially play a major role in improving management of chronic diseases. However, these data present a multitude of technical challenges, including irregular sampling of data and varying length of available patient history. In this paper, we describe and evaluate three different approaches that use machine learning to build predictive models using temporal EHR data of a patient. The first approach is a commonly used non-temporal approach that aggregates values of the predictors in the patient's medical history. The other two approaches exploit the temporal dynamics of the data. The two temporal approaches vary in how they model temporal information and handle missing data. Using data from the EHR of Mount Sinai Medical Center, we learned and evaluated the models in the context of predicting loss of estimated glomerular filtration rate (eGFR), the most common assessment of kidney function. Our results show that incorporating temporal information in patient's medical history can lead to better prediction of loss of kidney function. They also demonstrate that exactly how this information is incorporated is important. In particular, our results demonstrate that the relative importance of different predictors varies over time, and that using multi-task learning to account for this is an appropriate way to robustly capture the temporal dynamics in EHR data. Using a case study, we also demonstrate how the multi-task learning based model can yield predictive models with better performance for identifying patients at high risk of short-term loss of kidney function. PMID:25460205

Singh, Anima; Nadkarni, Girish; Gottesman, Omri; Ellis, Stephen B; Bottinger, Erwin P; Guttag, John V

2014-11-15

147

Web portal on environmental sciences "ATMOS''  

NASA Astrophysics Data System (ADS)

The developed under INTAS grant web portal ATMOS (http://atmos.iao.ru and http://atmos.scert.ru) makes available to the international research community, environmental managers, and the interested public, a bilingual information source for the domain of Atmospheric Physics and Chemistry, and the related application domain of air quality assessment and management. It offers access to integrated thematic information, experimental data, analytical tools and models, case studies, and related information and educational resources compiled, structured, and edited by the partners into a coherent and consistent thematic information resource. While offering the usual components of a thematic site such as link collections, user group registration, discussion forum, news section etc., the site is distinguished by its scientific information services and tools: on-line models and analytical tools, and data collections and case studies together with tutorial material. The portal is organized as a set of interrelated scientific sites, which addressed basic branches of Atmospheric Sciences and Climate Modeling as well as the applied domains of Air Quality Assessment and Management, Modeling, and Environmental Impact Assessment. Each scientific site is open for external access information-computational system realized by means of Internet technologies. The main basic science topics are devoted to Atmospheric Chemistry, Atmospheric Spectroscopy and Radiation, Atmospheric Aerosols, Atmospheric Dynamics and Atmospheric Models, including climate models. The portal ATMOS reflects current tendency of Environmental Sciences transformation into exact (quantitative) sciences and is quite effective example of modern Information Technologies and Environmental Sciences integration. It makes the portal both an auxiliary instrument to support interdisciplinary projects of regional environment and extensive educational resource in this important domain.

Gordov, E. P.; Lykosov, V. N.; Fazliev, A. Z.

2006-06-01

148

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

149

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

150

Traffick: The Guide to Portals  

NSDL National Science Digital Library

Designed to help users understand and make better use of portals or search engines, Traffick offers several helpful features. Probably the best of these are the articles and tutorials written by Traffick's columnists. These range from tips on customizing popular portals to comparisons of selected sites to reports on various ebusiness ventures. Newer users may also appreciate the Traffick Reports and comparisons of the major portals. Current Internet news, some "cool tools," a forum, and (annotated) related links round out the site.

151

Fructus aurantii reduced portal pressure in portal hypertensive rats.  

PubMed

The purpose of this study was to investigate the effects of Fructus Aurantii (the unripe fruits of Citrus aurantium L.) on portal hypertensive rats. Portal hypertension was induced by partial portal vein ligation (PVL) in Sprague-Dawley rats. Sham-operated (Sham) rats served as controls. Hemodynamic and in vitro contractile studies were performed at 14 days after surgery. Both the aqueous extract of Fructus Aurantii and synephrine, one of its purified principles with pressor activity, were infused into the conscious PVL and Sham rats via a syringe pump. Fructus Aurantii (1.25, 2.5, & 5.0 mg/kg/min) dose-dependently reduced portal pressure in PVL and Sham rats, with the percentage change in portal pressure more pronounced in PVL rats. Mean arterial pressure was dose-dependently elevated by Fructus Aurantii. Synephrine (0.095, 0.19, & 0.38 mg/kg/min) also dose-dependently reduced portal pressure and elevated mean arterial pressure in PVL and Sham rats. Fructus Aurantii (2.8-280 micrograms/ml) induced dose-dependent contractile responses mainly in aorta and mesenteric artery, but little response in portal vein. The results showed that Fructus Aurantii infusion reduced portal pressure, possibly by way of arterial vasoconstriction. PMID:7475952

Huang, Y T; Wang, G F; Chen, C F; Chen, C C; Hong, C Y; Yang, M C

1995-01-01

152

Management of portal hypertension  

PubMed Central

Treatment of portal hypertension is evolving based on randomised controlled trials. In acute variceal bleeding, prophylactic antibiotics are mandatory, reducing mortality as well as preventing infections. Terlipressin or somatostatin combined with endoscopic ligation or sclerotherapy is the best strategy for control of bleeding but there is no added effect of vasoactive drugs on mortality. Non-selective ß-blockers are the first choice therapy for both secondary and primary prevention; if contraindications or intolerance to ß-blockers are present then band ligation should be used. Novel therapies target the increased intrahepatic resistance caused by microcirculatory intrahepatic deficiency of nitric oxide and contraction of activated intrahepatic stellate cells. PMID:15537846

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

2004-01-01

153

Copepod Web Portal  

NSDL National Science Digital Library

The Copepod Web Portal, from the Department of Environmental Sciences at the University of L'Aquila in Italy, provides a comprehensive and nicely designed set of online resources for those interested in this "largest and most diversified group of crustaceans." The site includes a detailed review of copepod systematics; an international directory of copepodologists; a sizeable list of references; and numerous links to related books, journals, papers, and other resources -- including downloadable version of Monoculus: The Copepod Newsletter. A small number of links lead to sites not accessible without special permission.

Pesce, G. L.

1999-01-01

154

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.

155

OCG - CTD² Data Portal History  

Cancer.gov

Skip to Main Content Office of Cancer Genomics Email Updates Glossary Contact Search Programs Resources News & Publications About OCG CTD² Data Portal Version History Back to the CTD² Data Portal Version Release Date Release Notes 2.0 October 2014 Redesign

156

All Roads Lead to Portal  

ERIC Educational Resources Information Center

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

Heid, Susan D.

2007-01-01

157

Of Portals, Policies, and Poets  

ERIC Educational Resources Information Center

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

Bunt, Rick; Pennock, Lea

2006-01-01

158

GEONGrid portal: design and implementations  

Microsoft Academic Search

SUMMARY We have developed the GEONGrid system for coordinating and managing naturally distributed computing, data, and cluster resources on the cyberinfrastructure. At the present state, since the use of Grid technology is still very complex for researchers and scientists, the area of Grid Portals has made excellent progress. Grid portal system is emerging open grid computing environments that promises to

Choonhan Youn; Chaitan Baru; Karan Bhatia; Sandeep Chandra; Kai Lin; Ashraf Memon; Ghulam Memon; Dogan Seber

2007-01-01

159

NSTA Portal to Science Safety  

ERIC Educational Resources Information Center

The National Science Teachers Association's (NSTA) Science Safety Advisory Board recently launched the Safety in the Science Classroom portal. This portal serves as a gateway to safety resources for teachers, supervisors, and administrators. It also contains an evolving list of safety resources for elementary, middle, and high schools. The list…

Roy, Ken

2010-01-01

160

Non-cirrhotic portal hypertension.  

PubMed

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

Sarin, Shiv K; Khanna, Rajeev

2014-05-01

161

Portal monitoring technology control process  

SciTech Connect

Portal monitors are an important part of the material protection, control, and accounting (MPC and A) programs in Russia and the US. Although portal monitors are only a part of an integrated MPC and A system, they are an effective means of controlling the unauthorized movement of special nuclear material (SNM). Russian technical experts have gained experience in the use of SNM portal monitors from US experts ad this has allowed them to use the monitors more effectively. Several Russian institutes and companies are designing and manufacturing SNM portal monitors in Russia. Interactions between Russian and US experts have resulted in improvements to the instruments. SNM portal monitor technology has been effectively transferred from the US to Russia and should be a permanent part of the Russian MPC and A Program. Progress in the implementation of the monitors and improvements to how they are used are discussed.

York, R.L.

1998-12-31

162

Segmental portal hypertension.  

PubMed Central

Isolated obstruction of the splenic vein leads to segmental portal hypertension, which is a rare form of extrahepatic portal hypertension, but it is important to diagnose, since it can be cured by splenectomy. In a review of the English literature, 209 patients with isolated splenic vein obstruction were found. Pancreatitis caused 65% of the cases and pancreatic neoplasms 18%, whereas the rest was caused by various other diseases. Seventy-two per cent of the patients bled from gastroesophageal varices, and most often the bleeding came from isolated gastric varices. The spleen was enlarged in 71% of the patients. A correct diagnosis in connection with the first episode of bleeding was made in only 49%; 22% were operated on because of gastrointestinal bleeding, but the cause of bleeding was not found. The diagnosis should be suspected in patients with gastroesophageal varices, but without signs of a liver disease, especially if isolated gastric varices are found. The diagnosis is confirmed by portography. Images FIG. 1. FIG. 2. PMID:3729585

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

1986-01-01

163

Building a Stückelberg portal  

NASA Astrophysics Data System (ADS)

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

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

2014-05-01

164

U.S. Drought Portal  

NSDL National Science Digital Library

The National Integrated Drought Information System was signed into existence in 2006 by President George W. Bush, and it aims to provide guidance in preparing for drought in the 21st century. This official U.S. government web portal is loaded with colorful maps, charts and graphs, and that's just on the homepage. The "U.S. Drought Monitor" is a map on the homepage with the intensity of the drought conditions indicated by color, from abnormally dry to drought - exceptional. On the same map there are links to the answers to the following queries: "Where are Drought Conditions Now?", "How is the Drought Affecting Me?", and "Will the Drought Continue?" The "Education" link on the menu across the top of the page leads visitors to "Drought for General Audiences" and "Drought for K-12 and Above". Visitors interested in helping monitor precipitation in their own communities should check out CoCoRaHS, which is the "Community Collaborative Rain, Hail, and Snow Network". The link to that organization is provided in the "Drought for General Audiences" section.

165

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

166

Model-Based Design and Implementation of Secure, Interoperable EHR Systems  

PubMed Central

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

Blobel, Bernd; Stassinopoulos, George; Pharow, Peter

2003-01-01

167

Electronic Health Records (EHR) in PROMED platform in accordance with the Romanian legislative framework.  

PubMed

The paper describes how the PROMED platform can be used as a Electronic Patient Record (EHR) system and also the platform's contribution to the improvement of the healthcare services in Romania as a solution for the integration of the main stakeholders involved in a National Healthcare System: patients, health care providers and public health authorities. By using the PROMED platform, the Public Health Authorities will be able to view various reports about the population health status and can elaborate timely prevention and warning plans in case of epidemic diseases. PMID:18560065

Antohi, Roxana; Ogescu, Cristina; Bistriceanu, Daniel; Stefan, Livia; Dumitru, Silviu

2008-01-01

168

Multi-centric universal pseudonymisation for secondary use of the EHR.  

PubMed

This paper discusses the importance of protecting the privacy of patient data kept in an Electronic Health Record (EHR) in the case, where it leaves the control- and protection-sphere of the health care realm for secondary uses such as clinical or epidemiological research projects, health care research, assessment of treatment quality or economic assessments. The paper focuses on multi-centric studies, where various data sources are linked together using Grid technologies. It introduces a pseudonymisation system which enables a multi-centric universal pseudonymisation, meaning that a patient's identity will result in the same pseudonym, regardless of which participating study center the patient data is collected. PMID:17476066

Lo Iacono, Luigi

2007-01-01

169

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

170

New ICPP portal monitor  

SciTech Connect

A large area gas filled proportional-detector portal monitor mounted in a swinging door frame has been designed and developed at the Idaho Chemical Processing Plant (ICPP). This monitor extends the sensitivity and speed of personnel contamination detection to levels equal to or exceeding that obtained using hand-held portable survey techniques. The new monitor has state-of-the-art electronics which result in rapid response, and use statistical principles in the alarm logic to reduce or eliminate spurious alarms. In addition, the evaluation of this instrument indicates that it will detect small enough quantities of U-235 in shielded containers to meet current special nuclear materials (SNM) detection standards. Simultaneous detection of very low level contamination and small quantities of SNM results in a monitor particularly useful for nuclear installations.

Georgeson, M.A.; Nichols, C.E.

1981-04-01

171

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

172

Advanced Medical Expert Support Tool (A-MEST): EHR-based Integration of Multiple Risk Assessment Solutions for Congestive Heart Failure Patients  

E-print Network

1 Advanced Medical Expert Support Tool (A-MEST): EHR-based Integration of Multiple Risk Assessment Solutions for Congestive Heart Failure Patients Advanced Medical Expert Support Tool (A-MEST): EHR Tamburini6 1 ATOS, ATOS Research and Innovation (ARI), Madrid, Spain 2 Sapienza University of Rome

LuÂ?trek, Mitja

173

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

PubMed

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

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

2012-12-01

174

De-identifying an EHR database - anonymity, correctness and readability of the medical record.  

PubMed

Electronic health records (EHR) contain a large amount of structured data and free text. Exploring and sharing clinical data can improve healthcare and facilitate the development of medical software. However, revealing confidential information is against ethical principles and laws. We de-identified a Danish EHR database with 437,164 patients. The goal was to generate a version with real medical records, but related to artificial persons. We developed a de-identification algorithm that uses lists of named entities, simple language analysis, and special rules. Our algorithm consists of 3 steps: collect lists of identifiers from the database and external resources, define a replacement for each identifier, and replace identifiers in structured data and free text. Some patient records could not be safely de-identified, so the de-identified database has 323,122 patient records with an acceptable degree of anonymity, readability and correctness (F-measure of 95%). The algorithm has to be adjusted for each culture, language and database. PMID:21893869

Pantazos, Kostas; Lauesen, Soren; Lippert, Soren

2011-01-01

175

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

176

Extrahepatic aneurysm of the portal venous system and portal hypertension  

PubMed Central

Portal venous aneurysm (PVA) is a rare condition characterized by dilatation of the portal venous system. PVA manifestation of symptoms is varied and depends on the aneurysm size, location and related-complications, such as thrombosis. While the majority of reported cases of PVA are attributed to portal hypertension, very little is known about the condition’s pathophysiology and clinical management remains a challenge. Here, we describe a 67-year-old woman who presented with complaint of dyspepsia and without a significant medical history, for whom PVA was incidentally diagnosed. The initial upper abdominal ultrasound revealed marked dilatation of the main portal vein, and subsequent contrast-enhanced computed tomography with angiography revealed a large aneurysm arising from the extrahepatic troncus portion of the portal vein, as well as gastroesophageal varices. A conservative approach using beta-blocker therapy was chosen. The patient was followed-up for 60 mo, during which time the asymptomatic status was unaltered and the PVA remained stable. PMID:23556049

Debernardi-Venon, Wilma; Stradella, Davide; Ferruzzi, Greta; Marchisio, Filippo; Elia, Chiara; Rizzetto, Mario

2013-01-01

177

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

178

A modeling approach of web-based mobile parking guidance system and secured EHR in e-Healthcare  

Microsoft Academic Search

To perform research and experiment in enhancing the timeliness and efficiency of providing healthcare service in e-Healthcare, a modeling approach is designed and implemented to integrate a parking guidance system (PGS) with an electronic health record (EHR) system. The integrated system provides advanced services for two healthcare groups: 1) patients who need immediate urgent care, and 2) healthcare providers who

Weider D. Yu; Margaret Chan

2009-01-01

179

OERL: A Tool For Geoscience Education Evaluators  

Microsoft Academic Search

The Online Evaluation Resource Library (OERL) is a Web-based set of resources for improving the evaluation of projects funded by the Directorate for Education and Human Resources (EHR) of the National Science Foundation (NSF). OERL provides prospective project developers and evaluators with material that they can use to design, conduct, document, and review evaluations. OERL helps evaluators tackle the challenges

D. R. Zalles

2002-01-01

180

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

181

Surveying Recent Themes in Translational Bioinformatics: Big Data in EHRs, Omics for Drugs, and Personal Genomics  

PubMed Central

Summary Objective To provide a survey of recent progress in the use of large-scale biologic data to impact clinical care, and the impact the reuse of electronic health record data has made in genomic discovery. Method Survey of key themes in translational bioinformatics, primarily from 2012 and 2013. Result This survey focuses on four major themes: the growing use of Electronic Health Records (EHRs) as a source for genomic discovery, adoption of genomics and pharmacogenomics in clinical practice, the possible use of genomic technologies for drug repurposing, and the use of personal genomics to guide care. Conclusion Reuse of abundant clinical data for research is speeding discovery, and implementation of genomic data into clinical medicine is impacting care with new classes of data rarely used previously in medicine. PMID:25123743

2014-01-01

182

Web Portal for Multicast Delivery Management.  

ERIC Educational Resources Information Center

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

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

2003-01-01

183

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

Code of Federal Regulations, 2011 CFR

...2011-07-01 2011-07-01 false Principles noted in Portal-to-Portal Bulletin. 785.24 Section 785.24 Labor ...Concluding Activities § 785.24 Principles noted in Portal-to-Portal Bulletin. In November, 1947,...

2011-07-01

184

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

Code of Federal Regulations, 2010 CFR

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

2010-07-01

185

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

186

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

187

The XCAT Science Portal Sriram Krishnan  

E-print Network

1 The XCAT Science Portal Sriram Krishnan Randall Bramley Dennis Gannon Rachana of the XCAT Grid Science Por- tal. The portal lets grid application programmers script complex distributed. The XCAT Grid Science Portal has been tested with various applications, including the distributed

Krishnan, Sriram

188

Infusing informatics into interprofessional education: the iTEAM (Interprofessional Technology Enhanced Advanced practice Model) project.  

PubMed

The iTEAM goal is to prepare advanced practice nurses, physicians and pharmacists with the interprofessional (IP) core competencies (informatics, patient centric, quality-focused, evidence based care) to provide technology enhanced collaborative care by: offering technology enhanced learning opportunities through a required informatics course, advanced practice courses (team based experiences with both standardized and virtual patients) and team based clinical experiences including e-health experiences. The innovative features of iTEAM project will be achieved through use of social media strategies, a web accessible Electronic Health Records (EHRs) system, a Virtual Clinic/Hospital in Second Life, various e-health applications including traditional telehealth tools and consumer oriented tools such as patient portals, social media consumer groups and mobile health (m-health) applications for health and wellness functions. It builds upon the schools' rich history of IP education and includes clinical partners, such as the VA and other clinical sites focused on care for underserved patient populations. PMID:24943525

Skiba, Diane J; Barton, Amy J; Knapfel, Sarah; Moore, Gina; Trinkley, Katy

2014-01-01

189

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

190

Medical treatment of portal hypertension.  

PubMed

The medical treatment of portal hypertension has experienced marked progress in the past decade due to the production of effective portal hypertension therapy. This has been possible because of the better understanding of the pathophysiological mechanisms leading to portal hypertension. A major step forward was the introduction of beta-blockers for the prevention of bleeding and rebleeding from gastroesophageal varices. Effective therapy requires the reduction of the hepatic venous pressure gradient (HVPG) to 12 mm Hg or below, or at least by 20% of baseline values. Unfortunately, this is only achieved in 1/3-1/2 of patients. The combination therapy associated with isosorbide-5-mononitrate and propranolol or nadolol administration enhances the fall in portal pressure and increases the number of patients in whom HVPG decreases more than 20% and below 12 mm Hg. Randomized trials (RCTs) support the fact that combination therapy is more effective than propranolol or nadolol alone and better than sclerotherapy. In the treatment of acute variceal bleeding, pharmalogical therapy offers the unique advantage of permitting the provision of specific therapy immediately after arrival to hospital, or even during transferral to hospital by ambulance, since it does not require sophisticated personnel. Terlipressin has proved to be effective and to decrease mortality from bleeding. RCTs have shown that this drug is as effective and safer than emergency sclerotherapy. Therapy should be maintained for five days to prevent early rebleeding. Somatostatin is probably as effective as terlipressin. PMID:9705538

Bosch, J

1998-08-01

191

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.

192

Developing Interoperable Air Quality Community Portals  

NASA Astrophysics Data System (ADS)

Web portals are intended to provide consolidated discovery, filtering and aggregation of content from multiple, distributed web sources targeted at particular user communities. This paper presents a standards-based information architectural approach to developing portals aimed at air quality community collaboration in data access and analysis. An important characteristic of the approach is to advance beyond the present stand-alone design of most portals to achieve interoperability with other portals and information sources. We show how using metadata standards, web services, RSS feeds and other Web 2.0 technologies, such as Yahoo! Pipes and del.icio.us, helps increase interoperability among portals. The approach is illustrated within the context of the GEOSS Architecture Implementation Pilot where an air quality community portal is being developed to provide a user interface between the portals and clearinghouse of the GEOSS Common Infrastructure and the air quality community catalog of metadata and data services.

Falke, S. R.; Husar, R. B.; Yang, C. P.; Robinson, E. M.; Fialkowski, W. E.

2009-04-01

193

The ADRICOSM STAR GeoPortal  

NASA Astrophysics Data System (ADS)

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

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

2010-05-01

194

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

195

Patient portal doldrums: does an exam room promotional video during an office visit increase patient portal registrations and portal use?  

PubMed Central

The patient portal is a web service which allows patients to view their electronic health record, communicate online with their care teams, and manage healthcare appointments and medications. Despite advantages of the patient portal, registrations for portal use have often been slow. Using a secure video system on our existing exam room electronic health record displays during regular office visits, the authors showed patients a video which promoted use of the patient portal. The authors compared portal registrations and portal use following the video to providing a paper instruction sheet and to a control (no additional portal promotion). From the 12?050 office appointments examined, portal registrations within 45?days of the appointment were 11.7%, 7.1%, and 2.5% for video, paper instructions, and control respectively (p<0.0001). Within 6?months following the interventions, 3.5% in the video cohort, 1.2% in the paper, and 0.75% of the control patients demonstrated portal use by initiating portal messages to their providers (p<0.0001). PMID:21976028

Hanna, Barbara K; Crane, Sarah J; Smith, Steven A; Tulledge-Scheitel, Sidna M; Stroebel, Robert J

2011-01-01

196

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

197

Evaluation of matched control algorithms in EHR-based phenotyping studies: A case study of inflammatory bowel disease comorbidities.  

PubMed

The success of many population studies is determined by proper matching of cases to controls. Some of the confounding and bias that afflict electronic health record (EHR)-based observational studies may be reduced by creating effective methods for finding adequate controls. We implemented a method to match case and control populations to compensate for sparse and unequal data collection practices common in EHR data. We did this by matching the healthcare utilization of patients after observing that more complete data was collected on high healthcare utilization patients vs. low healthcare utilization patients. In our results, we show that many of the anomalous differences in population comparisons are mitigated using this matching method compared to other traditional age and gender-based matching. As an example, the comparison of the disease associations of ulcerative colitis and Crohn's disease show differences that are not present when the controls are chosen in a random or even a matched age/gender/race algorithm. In conclusion, the use of healthcare utilization-based matching algorithms to find adequate controls greatly enhanced the accuracy of results in EHR studies. Full source code and documentation of the control matching methods is available at https://community.i2b2.org/wiki/display/conmat/. PMID:25196084

Castro, Victor M; Apperson, W Kay; Gainer, Vivian S; Ananthakrishnan, Ashwin N; Goodson, Alyssa P; Wang, Taowei D; Herrick, Christopher D; Murphy, Shawn N

2014-12-01

198

EHR systems in the Spanish Public Health National System: the lack of interoperability between primary and specialty care.  

PubMed

One of the problems of the Spanish Public Health National System is the lack of interoperability in the implemented Electronic Health Records (EHRs) systems in primary and specialty care. There is a deficiency in the electronic health systems that store the data of primary care patients, so one of the basic problems that prevent that every hospital and health center working on the same method is that deficiency. In this paper we research on this problem and to give expression to a series of solutions to it. Bibliographic material in this work has been obtained mainly from MEDLINE source. Additionally, due to the lack of information and privacy about the different EHRs systems, we have resorted to making direct contact with the organizations that have implemented those systems and technological providers. Two solutions have been propounded given several aspects for a feasibility study. The first solution is based upon in the execution of backups in different EHRs databases, which implies a huge economical and infrastructure development. The second of these solutions so that due to the creation of protocols by means of Cloud Computing Technologies. It is crucial the need to reach a homogeneity concerning to the storage of patients clinical data. On the results achieved we can emphasize that maybe the main problems are not the economical handicaps or the large technological development needed, but, as for Health each Region manages its own competences, each one governs with independent policies and decisions. PMID:23321962

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

2013-02-01

199

Vertical flow chemical detection portal  

DOEpatents

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

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

1999-06-22

200

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

201

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 siteâ??s homepage features a â??Highlightsâ? 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.

202

NEWT, a new taxonomy portal  

Microsoft Academic Search

NEWT is a new taxonomy portal to the SWISS-PROT protein sequence knowledgebase. It contains taxo- nomy data, which is updated daily, for the complete set of species representedin SWISS-PROT, as well as those storedat the NCBI. Users can navigate through the taxonomy tree andaccess correspond - ing SWISS-PROT protein entries. In addition, a manually curatedselection of external links allows access

I. Q. H. Phan; Sandrine Pilbout; Wolfgang Fleischmann; Amos Bairoch

2003-01-01

203

Environmental Technology Opportunities Portal (ETOP)  

NSDL National Science Digital Library

The Environmental Technology Opportunities Portal (ETOP) links you to programs that help fund development of new environmental technologies and offers information on existing environmental technologies. EPA offers several programs to assist the public and private sectors in developing and commercializing new environmental technologies. This is done through financial, testing and verification support, and by promoting use and acceptance of a technology through collaborative, incentive, partnership and advocacy, and information programs.

2007-02-15

204

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 $\\sigma^{SD}_{\\chi n} \\simeq 10^{-40} \\mrm{cm^2}$, which then becomes a clear prediction of the model and a signature testable in the near future experiments.

Giorgio Arcadi; Yann Mambrini; Francois Richard

2014-11-11

205

Cardiac dysfunction in portal hypertension among patients with cirrhosis and non-cirrhotic portal fibrosis  

Microsoft Academic Search

Background\\/Aims: In cirrhosis, diastolic dysfunction of heart is well documented. Contribution of portal hypertension towards cardiac changes in cirrhosis is difficult to assess. We examined the patients of non-cirrhotic portal fibrosis who have portal hypertension without liver insufficiency to understand the contribution of portal hypertension in causing cardiac changes.Methods: Cardiac function was studied in four groups of patients: normal controls,

Binay K De; Debabrata Majumdar; Debasish Das; Pranab K Biswas; Sanjay K Mandal; Sujay Ray; Kausik Bandopadhyay; Tapas K Das; Sanjay Dasgupta; Supriya Guru

2003-01-01

206

Preduodenal portal vein: its surgical significance.  

PubMed

Preduodenal portal vein is a rare anatomical variant which may be one of many anomalies in the neonate with duodenal "atresia." Preduodenal portal vein also may be an occasional finding in an adult undergoing biliary, gastric, or pancreatic surgery. Awareness and recognition of the anomaly are essential for the avoidance of injury during such operations. We report here a symptomless patient whose preduodenal portal vein was discovered at cholecystectomy. PMID:715684

Makey, D A; Bowen, J C

1978-11-01

207

Non-cirrhotic portal hypertension in pregnancy  

Microsoft Academic Search

Objective: To study the outcome of pregnancy in women with non-cirrhotic portal hypertension (NCPH). Method: A retrospective analysis of 50 pregnancies in 27 women with NCPH was carried out. Pregnancy outcome was compared in extra hepatic portal vein obstruction (EHPVO) and non-cirrhotic portal fibrosis (NCPF). Results: The mean maternal age was 24.60±2.857 years, and the disease was diagnosed during pregnancy

N. Aggarwal; H. Sawhney; K. Vasishta; R. K. Dhiman; Y. Chawla

2001-01-01

208

Extrahepatic Portal Hypertension Following Abdominal Surgery  

Microsoft Academic Search

We present a case of non-cirrhotic extrahepatic portal hypertension in a 31-year-old woman following exten- sive abdominal laparotomy for the drainage of multiple retroperitoneal and liver abscesses following a perfo- rated appendix. Chronic portal, splenic, and mesenteric vein thrombosis with portal hypertension was caused by a hypercoagulable state due to the abdominal infec- tion and abdominal surgery. Various etiological aspects

Ajit Singh Ahluwalia; Joseph J. Mazza; Steven H. Yale

209

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

210

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

211

Web-based Service Portal in Healthcare  

NASA Astrophysics Data System (ADS)

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

Silhavy, Petr; Silhavy, Radek; Prokopova, Zdenka

212

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

213

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

Microsoft Academic Search

In a series of 251 good-risk patients undergoing portal decompression for intrahepatic portal hypertension, one fifth have been found not to have hepatic cirrhosis. Of these, 44 had only minor changes in hepatic architecture, and the clinical features and subsequent course have been compared and contrasted with a group of 201 cirrhotic patients who underwent portal decompression for similar indications.The

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

1970-01-01

214

Ultrastructure of the liver in non-cirrhotic portal fibrosis with portal hypertension  

Microsoft Academic Search

The aetiology of the ultrastructural abnormalities of non-cirrhotic portal fibrosis is not known. In an attempt to elucidate the pathophysiology of this condition, the hepatic ultrastructure in nine cases of non-cirrhotic portal fibrosis with portal hypertension has been studied.

B. N. Tandon; R. Lakshminarayanan; S. Bhargava; N. C. Nayak; S. K. Sama

1970-01-01

215

Transjugular intrahepatic portosystemic shunt for palliative treatment of portal hypertension secondary to portal vein tumor thrombosis  

Microsoft Academic Search

AIM: To evaluate the palliative therapeutic effects of transjugular intrahepatic portosystemic shunt (TIPS) in portal vein tumor thrombosis (PVTT) complicated by portal hypertension. METHODS: We performed TIPS for 14 patients with PVTT due to hepatocellular carcinoma (HCC). Of the 14 patients, 8 patients had complete occlusion of the main portal vein, 6 patients had incomplete thrombosis, and 5 patients had

Zai-Bo Jiang; Hong Shan; Xin-Ying Shen; Ming-Sheng Huang; Zheng-Ran Li; Kang-Shun Zhu; Shou-Hai Guan

216

Incorporating personalized gene sequence variants, molecular genetics knowledge, and health knowledge into an EHR prototype based on the Continuity of Care Record standard  

PubMed Central

Summary Objectives The current volume and complexity of genetic tests, and the molecular genetics knowledge and health knowledge related to interpretation of the results of those tests, are rapidly outstripping the ability of individual clinicians to recall, understand and convey to their patients information relevant to their care. The tailoring of molecular genetics knowledge and health knowledge in clinical settings is important both for the provision of personalized medicine and to reduce clinician information overload. In this paper we describe the incorporation, customization and demonstration of molecular genetic data (mainly sequence variants), molecular genetics knowledge and health knowledge into a standards-based electronic health record (EHR) prototype developed specifically for this study. Methods We extended the CCR (Continuity of Care Record), an existing EHR standard for representing clinical data, to include molecular genetic data. An EHR prototype was built based on the extended CCR and designed to display relevant molecular genetics knowledge and health knowledge from an existing knowledge base for cystic fibrosis (OntoKBCF). We reconstructed test records from published case reports and represented them in the CCR schema. We then used the EHR to dynamically filter molecular genetics knowledge and health knowledge from OntoKBCF using molecular genetic data and clinical data from the test cases. Results The molecular genetic data were successfully incorporated in the CCR by creating a category of laboratory results called “Molecular Genetics ” and specifying a particular class of test (“Gene Mutation Test”) in this category. Unlike other laboratory tests reported in the CCR, results of tests in this class required additional attributes (“Molecular Structure” and “Molecular Position”) to support interpretation by clinicians. These results, along with clinical data (age, sex, ethnicity, diagnostic procedures, and therapies) were used by the EHR to filter and present molecular genetics knowledge and health knowledge from OntoKBCF. Conclusions This research shows a feasible model for delivering patient sequence variants and presenting tailored molecular genetics knowledge and health knowledge via a standards-based EHR system prototype. EHR standards can be extended to include the necessary patient data (as we have demonstrated in the case of the CCR), while knowledge can be obtained from external knowledge bases that are created and maintained independently from the EHR. This approach can form the basis for a personalized medicine framework, a more comprehensive standards-based EHR system and a potential platform for advancing translational research by both disseminating results and providing opportunities for new insights into phenotype-genotype relationships. PMID:21946299

Jing, Xia; Kay, Stephen; Marley, Tom; Hardiker, Nicholas R.; Cimino, James J.

2011-01-01

217

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

218

Secure data sharing across portals: experiences from OneVRE.  

PubMed

Research and higher education are facing an on-going transformation of practice resulting in the need for effective collaboration and sharing of resources within and across disciplinary and geographical boundaries. Portal technologies and portal-based virtual research and learning environments (VREs and VLEs) already have become standard infrastructures within a large number of research communities and institutions. From 2004, a series of research and development projects began to ask the question whether an open source videoconferencing and collaboration system could be used as a complete, or as a part of, VRE. This study presents the evolution of these projects and at the same time, describes the definition of a VRE and their future possible integration. The OneVRE portlet integration project attempted to create missing components, including adding secure and universal identity management. This moves the idea of shared data to a different level by creating a new administrative domain that is outside the control of a single local institution portal and resolves certain administrative virtual organizations problems. We explain some of the hurdles that still need to be overcome to make this venture truly successful, when a complete toolkit can be designed for the researcher of the future. PMID:23230154

Turner, Martin; Jones, Michael; Poschen, Meik; Procter, Rob; Rowley, Andrew; Schiebeck, Tobias

2013-01-28

219

Leptogenesis and the Higgs portal  

NASA Astrophysics Data System (ADS)

We study the impact on leptogenesis of Higgs portal couplings to a new scalar singlet. These couplings open up additional C P -violating decay channels for the higher mass singlet neutrinos N2 and N3. We analyze the simplest case of two-level N1-N2 leptogenesis, including significant mass hierarchies, in which the C P asymmetry is generated in part by singlet-mediated decays of N2. For these models, provided the lightest singlet neutrino N1 is sufficiently weakly coupled to avoid excessive washout, its mass scale is not directly constrained by the Davidson-Ibarra bound.

Le Dall, Matthias; Ritz, Adam

2014-11-01

220

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.

221

Leptogenesis and the Higgs Portal  

E-print Network

We study the impact on leptogenesis of Higgs portal couplings to a new scalar singlet. These couplings open up additional $CP$-violating decay channels for the higher mass singlet neutrinos $N_2$ and $N_3$. We analyze the simplest case of two-level $N_1-N_2$ leptogenesis, including significant mass hierarchies, in which the $CP$ asymmetry is generated in part by singlet-mediated decays of $N_2$. For these models, provided the lightest singlet neutrino $N_1$ is sufficiently weakly coupled to avoid excessive washout, its mass scale is not directly constrained by the Davidson-Ibarra bound.

Matthias Le Dall; Adam Ritz

2014-08-11

222

Non-cirrhotic portal hypertension with hypoxaemia  

Microsoft Academic Search

Hypoxaemia and digital clubbing are rare but well recognised associations of hepatic cirrhosis with portal hypertension. We report the first European patient with idiopathic non-cirrhotic portal hypertension complicated by these features. Pulmonary physiological studies show the hypoxaemia to be the result of anatomical and physiological intrapulmonary shunting.

C Babbs; T W Warnes; N Y Haboubi

1988-01-01

223

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

224

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

225

Factors Affecting Faculty Web Portal Usability  

ERIC Educational Resources Information Center

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

Bringula, Rex P.; Basa, Roselle S.

2011-01-01

226

Organic nitrates in portal hypertension.  

PubMed

In conclusion, chronic administration of organic nitrates, allowing for a nitrate-free interval each day, to cirrhotic patients reduces portal pressure with a variable, dose-dependent effect on azygos blood flow. The mechanisms of portal pressure reduction may vary according to the different doses and severity of liver disease. No studies to date have used dose-titration to determine the optimal beneficial effects in an individual patient, but some have at least compared the effect of different doses. Perhaps an end-point of mean arterial blood pressure reduction to 70 mm Hg could be suggested for future studies. The prophylactic benefit of nitrates for variceal bleeding still remains to be tested by controlled clinical trials. However, several problems in this evaluation need to be addressed, including patient compliance, selection of responders, evaluation of treatment, dose, and the duration of treatment. In contrast to the diminished expectations of propranolol for the prevention of rebleeding, there is mounting evidence of a major role for nitrates. PMID:8273802

Jones, A L; Hayes, P C

1994-01-01

227

Straddle carrier radiation portal monitoring  

NASA Astrophysics Data System (ADS)

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

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

2005-05-01

228

Araport: the Arabidopsis information portal.  

PubMed

The Arabidopsis Information Portal (https://www.araport.org) is a new online resource for plant biology research. It houses the Arabidopsis thaliana genome sequence and associated annotation. It was conceived as a framework that allows the research community to develop and release 'modules' that integrate, analyze and visualize Arabidopsis data that may reside at remote sites. The current implementation provides an indexed database of core genomic information. These data are made available through feature-rich web applications that provide search, data mining, and genome browser functionality, and also by bulk download and web services. Araport uses software from the InterMine and JBrowse projects to expose curated data from TAIR, GO, BAR, EBI, UniProt, PubMed and EPIC CoGe. The site also hosts 'science apps,' developed as prototypes for community modules that use dynamic web pages to present data obtained on-demand from third-party servers via RESTful web services. Designed for sustainability, the Arabidopsis Information Portal strategy exploits existing scientific computing infrastructure, adopts a practical mixture of data integration technologies and encourages collaborative enhancement of the resource by its user community. PMID:25414324

Krishnakumar, Vivek; Hanlon, Matthew R; Contrino, Sergio; Ferlanti, Erik S; Karamycheva, Svetlana; Kim, Maria; Rosen, Benjamin D; Cheng, Chia-Yi; Moreira, Walter; Mock, Stephen A; Stubbs, Joseph; Sullivan, Julie M; Krampis, Konstantinos; Miller, Jason R; Micklem, Gos; Vaughn, Matthew; Town, Christopher D

2015-01-28

229

The UCSC Ebola Genome Portal  

PubMed Central

Background: With the Ebola epidemic raging out of control in West Africa, there has been a flurry of research into the Ebola virus, resulting in the generation of much genomic data. Methods: In response to the clear need for tools that integrate multiple strands of research around molecular sequences, we have created the University of California Santa Cruz (UCSC) Ebola Genome Browser, an adaptation of our popular UCSC Genome Browser web tool, which can be used to view the Ebola virus genome sequence from GenBank and nearly 30 annotation tracks generated by mapping external data to the reference sequence. Significant annotations include a multiple alignment comprising 102 Ebola genomes from the current outbreak, 56 from previous outbreaks, and 2 Marburg genomes as an outgroup; a gene track curated by NCBI; protein annotations curated by UniProt and antibody-binding epitopes curated by IEDB. We have extended the Genome Browser’s multiple alignment color-coding scheme to distinguish mutations resulting from non-synonymous coding changes, synonymous changes, or changes in untranslated regions. Discussion: Our Ebola Genome portal at http://genome.ucsc.edu/ebolaPortal/ links to the Ebola virus Genome Browser and an aggregate of useful information, including a collection of Ebola antibodies we are curating.

Haeussler, Maximilian; Karolchik, Donna; Clawson, Hiram; Raney, Brian J; Rosenbloom, Kate R.; Fujita, Pauline A.; Hinrichs, Angie S.; Speir, Matthew L; Eisenhart, Chris; Zweig, Ann S.; Haussler, David; Kent, W. James

2014-01-01

230

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

231

Prototype Neutron Portal Monitor Detector  

NASA Astrophysics Data System (ADS)

A very large drum-shaped neutron detector which could replace the 3He neutron portal monitor detector is under development. Detection is based on the 6Li(n,3H)4He reaction. 6Li metal is evaporated onto aluminum plates then covered with 22-cm x 27-cm ZnS(Ag) scintillation sheets and sealed about the edges. The equivalent of 40 detector plates will be arrayed in the 80-cm diameter drum housing and viewed by a single 20-cm diameter hemispherical photomultiplier tube without the use of light guides. Presently 25 detector plates are installed. Light collection tests are performed with a bare 210Po alpha source on a ZnS(Ag) disk. Neutron detection studies include neutrons from a 2-curie PuBe source and from a 0.255-gram 240Pu source.

Schier, W.

2014-05-01

232

Abernethy malformation with portal vein aneurysm.  

PubMed

We present the case of a 24-year-old man who was incidentally diagnosed with congenital extrahepatic portosystemic shunt with portal vein aneurysm during an investigation for non-specific abdominal pain. These are rare anomalies, and to the best of our knowledge, this is the first case reported with both anomalies associated together. Ultrasound, including color Doppler, computed tomography, and magnetic resonance imaging were performed which revealed a side-to-side shunt between the extrahepatic portal vein and the inferior vena cava, with aneurysmal fusiform dilatation of the proximal intrahepatic portal vein which ended abruptly. Etiology, clinical significance, and management strategies with regard to these abnormalities are discussed. PMID:18814137

Kumar, Atin; Kumar, Jyoti; Aggarwal, Rakesh; Srivastava, Siddharth

2008-09-01

233

Portales Valley: Not Just Another Ordinary Chondrite  

NASA Astrophysics Data System (ADS)

Soon after the Portales Valley meteorite fell in 1998, it was classified as one of the most common types of meteorites, an H6 ordinary chondrite. Although researchers quickly recognized that Portales Valley is not a typical H6 chondrite, there was little agreement about how the meteorite formed. A recent study of Portales Valley by Ruzicka and colleagues suggests that the textures, mineralogy, and chemistry of the meteorite are best explained as the first good example of a metallic melt breccia. This meteorite represents a transitional stage between chondrites and various classes of differentiated meteorites, and offers clues as to how differentiation occurred in early-formed planetary bodies.

Ruzicka, A.; Hutson, M.

2005-09-01

234

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

NASA Technical Reports Server (NTRS)

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

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

2012-01-01

235

The Fukushima Daiichi Accident Study Information Portal  

SciTech Connect

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

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

2012-11-01

236

Extension of GWAS results for lipid-related phenotypes to extreme obesity using electronic health record (EHR) data and the Metabochip  

PubMed Central

A variety of health-related data are commonly deposited into electronic health records (EHRs), including laboratory, diagnostic, and medication information. The digital nature of EHR data facilitates efficient extraction of these data for research studies, including genome-wide association studies (GWAS). Previous GWAS have identified numerous SNPs associated with variation in total cholesterol (TC), low-density lipoprotein cholesterol (LDL-C), high-density lipoprotein cholesterol (HDL-C), and triglycerides (TG). These findings have led to the development of specialized genotyping platforms that can be used for fine-mapping and replication in other populations. We have combined the efficiency of EHR data and the economic advantages of the Illumina Metabochip, a custom designed SNP chip targeted to traits related to coronary artery disease, myocardial infarction, and type 2 diabetes, to conduct an array-wide analysis of lipid traits in a population with extreme obesity. Our analyses identified associations with 12 of 21 previously identified lipid-associated SNPs with effect sizes similar to prior results. Association analysis using several approaches to account for lipid-lowering medication use resulted in fewer and less strongly associated SNPs. The availability of phenotype data from the EHR and the economic efficiency of the specialized Metabochip can be exploited to conduct multi-faceted genetic association analyses. PMID:25147553

Parihar, Ankita; Wood, G. Craig; Chu, Xin; Jin, Qunjan; Argyropoulos, George; Still, Christopher D.; Shuldiner, Alan R.; Mitchell, Braxton D.; Gerhard, Glenn S.

2014-01-01

237

Portal vein aneurysm: a rare occurrence.  

PubMed

Portal vein aneurysms (PVA) are a rare vascular anomaly of the portal system, representing fewer than 3% of all venous aneurysms, with only 150 known cases since first reported in l956 by Barzilai and Kleckner. PVA can be divided into 2 categories: extrahepatic and intrahepatic with acquired and congenital etiologies. Bimodal treatment includes medical and surgical approaches. With increased use of noninvasive radiological imaging, PVA will be increasingly recognized in the practice of vascular surgery. PMID:22062791

Turner, Kathy C; Bohannon, W T; Atkins, Marvin D

2011-12-01

238

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

239

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

240

Contrast-enhanced portal magnetic resonance angiography in dogs with suspected congenital portal vascular anomalies.  

PubMed

Contrast-enhanced multiphase magnetic resonance angiography (CE-MRA) was used in 17 dogs with a suspected congenital portal vascular anomaly. Portal vascular anomalies were identified in 16 of the 17 dogs. Eleven had a single intrahepatic portocaval shunt (two central divisional, three right divisional, and six left divisional), one dog had a double intrahepatic portocaval shunt, one dog had a hepatic arteriovenous malformation, one dog had a complex intrahepatic porto-caval shunt. Two dogs had an extrahepatic portosystemic shunt and no shunt was identified in one dog. Total imaging time was <10?min and image quality was good to excellent in all dogs. Portal CE-MRA is a feasible, fast and non invasive technique to diagnose portal vascular anomalies in dogs, with a large field-of-view and good anatomic depiction of the abnormal vessels. Based on these results, CE-MRA is an efficient imaging technique for the diagnosis of portal vascular anomalies in dogs. PMID:21554476

Mai, Wilfried; Weisse, Chick

2011-01-01

241

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

242

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

243

The double-dark portal  

NASA Astrophysics Data System (ADS)

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 dark mediator Dark matter model (dmDM), featuring a fermionic DM candidate ? with Yukawa couplings to light scalars ? i . The scalars couple to SM quarks via the operator . This can lead to large direct detection signals via the 2 ? 3 process ? N ? ? N ? if one of the scalars has mass ? 10 keV. For dark matter Yukawa couplings y ? ˜ 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 constraints are derived from a detailed examination of the light mediator's effects on stellar astrophysics. LHC experiments and cosmological considerations also yield important bounds. 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 dmDM candidate fakes different WIMPs at different experiments. Large regions of dmDM parameter space are accessible above the irreducible neutrino background.

Curtin, David; Tsai, Yuhsin

2014-11-01

244

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

PubMed Central

Background Providing scalable clinical decision support (CDS) across institutions that use different electronic health record (EHR) systems has been a challenge for medical informatics researchers. The lack of commonly shared EHR models and terminology bindings has been recognised as a major barrier to sharing CDS content among different organisations. The openEHR Guideline Definition Language (GDL) expresses CDS content based on openEHR archetypes and can support any clinical terminologies or natural languages. Our aim was to explore in an experimental setting the practicability of GDL and its underlying archetype formalism. A further aim was to report on the artefacts produced by this new technological approach in this particular experiment. We modelled and automatically executed compliance checking rules from clinical practice guidelines for acute stroke care. Methods We extracted rules from the European clinical practice guidelines as well as from treatment contraindications for acute stroke care and represented them using GDL. Then we executed the rules retrospectively on 49 mock patient cases to check the cases’ compliance with the guidelines, and manually validated the execution results. We used openEHR archetypes, GDL rules, the openEHR reference information model, reference terminologies and the Data Archetype Definition Language. We utilised the open-sourced GDL Editor for authoring GDL rules, the international archetype repository for reusing archetypes, the open-sourced Ocean Archetype Editor for authoring or modifying archetypes and the CDS Workbench for executing GDL rules on patient data. Results We successfully represented clinical rules about 14 out of 19 contraindications for thrombolysis and other aspects of acute stroke care with 80 GDL rules. These rules are based on 14 reused international archetypes (one of which was modified), 2 newly created archetypes and 51 terminology bindings (to three terminologies). Our manual compliance checks for 49 mock patients were a complete match versus the automated compliance results. Conclusions Shareable guideline knowledge for use in automated retrospective checking of guideline compliance may be achievable using GDL. Whether the same GDL rules can be used for at-the-point-of-care CDS remains unknown. PMID:24886468

2014-01-01

245

PORTAL WEB GEO-ESCOLA: UMA PONTE ENTRE CONCEITOS DE GEOCIÊN- CIAS E OS PROFESSORES DE ENSINO FUNDAMENTAL E MEDIO GEO-SCHOOL WEBSITE: A BRIDGE BETWEEN CONCEPTS OF GEOSCIENCES AND TEACHERS OF BASIC AND MEDIUM-LEVEL EDUCATION  

Microsoft Academic Search

The Geo-School website belongs to the Geo-School project; both have been born from the idea that, in the Brazilian basic education, the geosciences contents offer a rich contribution for the formation of students pupils, although their insertion is too low in these school levels. The website takes advantage of digital didactic material generated on interdisciplinary topics as Earth dynamics, water

CELSO D. R. CARNEIRO; VLANDER V. SIGNORETTI; RONALDO BARBOSA; JOSELI M. PIRANHA

246

The anxious wait: assessing the impact of patient accessible EHRs for breast cancer patients  

Microsoft Academic Search

BACKGROUND: Personal health records (PHRs) provide patients with access to personal health information (PHI) and targeted education. The use of PHRs has the potential to improve a wide range of outcomes, including empowering patients to be more active participants in their care. There are a number of widespread barriers to adoption, including privacy and security considerations. In addition, there are

David Wiljer; Kevin J Leonard; Sara Urowitz; Emma Apatu; Christine Massey; Naa Kwarley Quartey; Pamela Catton

2010-01-01

247

Investigating the efficacy of subharmonic aided pressure estimation for portal vein pressures and portal hypertension monitoring  

PubMed Central

The efficacy of using subharmonic emissions from Sonazoid microbubbles (GE Healthcare, Oslo, Norway) to track portal vein pressures and pressure changes was investigated in 14 canines using either slow- or high-flow models of portal hypertension (PH). A modified Logiq 9 scanner (GE Healthcare, Milwaukee, WI) operating in subharmonic mode (ftransmit:2.5MHz, freceive:1.25MHz) was used to collect RF data at 10-40% incident acoustic power levels with 2-4 transmit cycles (in triplicate), before and after inducing PH. A pressure catheter (Millar Instruments, Inc., Houston, TX) provided reference portal vein pressures. At optimum insonification, subharmonic signal amplitude changes correlated with portal vein pressure changes; r ranged from -0.82 to -0.94 and from -0.70 to -0.73 for PH models considered separately or together, respectively. The subharmonic signal amplitudes correlated with absolute portal vein pressures (r: -0.71 to -0.79). Statistically significant differences between subharmonic amplitudes, before and after inducing PH, were noted (p?0.01). Portal vein pressures estimated using SHAPE did not reveal significant differences (p>0.05) with respect to the pressures obtained using the Millar pressure catheter. Subharmonic aided pressure estimation may be useful clinically for portal vein pressure monitoring. PMID:22920550

Dave, Jaydev K.; Halldorsdottir, Valgerdur G.; Eisenbrey, John R.; Merton, Daniel A.; Liu, Ji-Bin; Zhou, Jian-Hua; Wang, Hsin-Kai; Park, Suhyun; Dianis, Scott; Chalek, Carl L.; Lin, Feng; Thomenius, Kai E.; Brown, Daniel B.; Forsberg, Flemming

2013-01-01

248

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

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

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

249

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

250

The hospital library and the enterprise portal.  

PubMed

At Exempla Healthcare, the medical librarians and the e-Business staff are creating an enterprise information portal where medical reference is targeted, easily accessible, and supported by the medical librarians. A team approach has been essential. The e-Business department has worked for nine months coordinating technical challenges required to support personalization, targeted communications, and a single access point for clinical patient data. Exempla medical librarians have been involved in the definition and design of information access needs from the very beginning. The Clinicians Portal was the first developed, with other customizations to follow. Many challenges remain, but by definition, a portal is designed to be flexible and adapt to the changing needs of the enterprise it supports. PMID:15119841

Bandy, Margaret; Fosmire, Brenda

2004-01-01

251

[Portal hypertension in idiopathic haemochromatosis (author's transl)].  

PubMed

In contrast to hepatic and alcoholic cirrhosis of the liver, the life-threatening portal hypertension seen in idiopathic haemochromatosis (IH) responds well to therapy. With the aid of laparoscopic transhepatic manometry, we determined the pressures in the branches of the portal vein and the hepatic vein in four patients presenting with IH, and compared the values obtained with clinico-chemical and histological parameters. Three patients who had been suffering from the disease for periods varying between two and ten years, responded well to therapy. The fourth patient, who presented with the highest pressure in the portal vein (26.5 mm Hg) died, three months after the initial establishment of the diagnosis of advanced IH, in consequence of unmanagable haemorrhage from oesophageal varices. PMID:483945

Mörl, M; Schwalbach, G; Wannagat, L

1979-06-01

252

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

253

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

254

Text-Based Ads-Portal Domains: Identification and Measurements  

E-print Network

-related domain name in the address bar hoping it resolves to an ads-portal page related to the sought topicText-Based Ads-Portal Domains: Identification and Measurements MISHARI ALMISHARI University of California, Irvine and XIAOWEI YANG Duke University A text-based ads-portal domain refers to a web domain

Yang, Xiaowei

255

Portal hypertension in chronic hepatitis: relationship to morphological changes  

Microsoft Academic Search

Various anatomical factors were examined which might provide passive resistance to portal venous flow and so cause portal hypertension. Methods included the measurement of portal pressure (WHVPG) in cirrhotic and non-cirrhotic patients, morphological assessment by semiquantitative grading of severity of disease, calculation of hepatocyte size indices, and assessment of volume density of hepatocytes, sinusoids, Disse's space and Disse's space collagen

D J van Leeuwen; S C Howe; P J Scheuer; S Sherlock

1990-01-01

256

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

257

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

258

Open source portal to distributed image repositories  

Microsoft Academic Search

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

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

2004-01-01

259

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

260

GENIUS: a web portal for the grid  

NASA Astrophysics Data System (ADS)

The architecture and the current implementation of the grid portal GENIUS (Grid Enabled web environment for site Independent User job Submission), jointly developed by INFN and NICE within the context of the INFN Grid and DataGrid Project, is presented and discussed.

Andronico, A.; Barbera, R.; Falzone, A.; Lo Re, G.; Pulvirenti, A.; Rodolico, A.

2003-04-01

261

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

262

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

263

Portal increases throughput with SCADA, distributed control  

Microsoft Academic Search

Portal Pipelines has added a distributed control system run by SCADA (supervisory control and data acquisition) in its Minot, North Dakota control center. The system keeps abreast of crude movements and quantities of oil being delivered. It was installed in specified stages from 5TI programmable controller, to a PM550 controller (in conjunction with FSK modems), to a full SCADA system.

Bell

1983-01-01

264

Dartmouth RAPPORT Research Administration & PI Portal  

E-print Network

, Grants ·Ann O'Hara, IRB ·Kimberly Lyford, IRB 11/14/2011 #12;ClickTM Portal Tony Haber #12;Huron Financial and Budget Planning Software System Implementation Services Project Planning Functional Design improvement 9 #12;Expert Protocol Automation Grant Proposal (NIH R01) Primary Budget Sub-award Budget

Myers, Lawrence C.

265

Collaboration Portals for NASA's Airborne Field Campaigns  

NASA Astrophysics Data System (ADS)

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

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

2011-12-01

266

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

267

Anatomy of the Portal Vein Bifurcation: Implication for Transjugular Intrahepatic Portal Systemic Shunts  

SciTech Connect

Purpose: The relationship of the portalvein bifurcation to the liver capsule in Asians, which is an important landmark for transjugular intrahepatic portosystemic shunt, has not previously been described. Methods: The anatomy of the portal vein bifurcation was studied in 70 adult Chinese cadavers; it was characterized as intrahepatic or extrahepatic. The length of the exposed portion of the right and left portal veins was measured when the bifurcation was extrahepatic. Results: The portal vein bifurcation was intrahepatic in 37 cadavers (53%) and extrahepatic in 33 cadavers (47%). The mean length of the right and left extrahepatic portal veins was 0.96 cm and 0.85 cm respectively.Both were less than or equal to 2 cm in 94% of the cadavers with extrahepatic bifurcation. There was no correlation between the presence of cirrhosis and the location of the portal vein bifurcation(p 1.0). There was no statistically significant difference in liver mass in cadavers with either extrahepatic or intrahepatic bifurcation (p =0.40). Conclusions: These findings suggest that fortransjugular intrahepatic portosystemic shunt placement, a portal vein puncture 2 cm from the bifurcation will be safe in most cases.

Kwok, Philip Chong-hei [Queen Elizabeth Hospital, 30 Gascoigne Road, Kowloon, Department of Radiology and Imaging, Hong Kong (China)], E-mail: pchkwok@ha.org.hk; Ng, Wai Fu; Lam, Christine Suk-yee; Tsui, Polly Po; Faruqi, Asma [Yan Chai Hospital, 7-11 Yan Chai Street, TsuenWan, New Territories, Department ofPathology, Hong Kong (China)

2003-06-15

268

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

269

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.

270

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

271

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. PMID:25232274

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

2014-01-01

272

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

273

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

274

Development and implementation of an integrated EHR for Homecare Service: a South American experience.  

PubMed

This paper describes the development and implementation of a web based electronic health record for the Homecare Service program in the Hospital Italiano de Buenos Aires. It reviews the process of the integration of the new electronic health record to the hospital information system, allowing physicians to access the clinical data repository from their Pc's at home and with the capability of consulting past and present history of the patient health care, order, tests, and referrals with others professionals trough the new Electronic Health Record. We also discuss how workflow processes were changed and improved for the physicians, nurses, and administrative personnel of the Homecare Services and the educational methods used to improve acceptance and adoption of these new technologies. We also briefly describe the validation of physicians and their field work with electronic signatures. PMID:20841647

Aguilera Díaz, Jerónimo; Arias, Antonio Eduardo; Budalich, Cintia Mabel; Benítez, Sonia Elizabeth; López, Gastón; Borbolla, Damián; Plazzotta, Fernando; Luna, Daniel; de Quirós, Fernán González Bernaldo

2010-01-01

275

Complications of cirrhosis. I. Portal hypertension.  

PubMed

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 is the main determinant of this dynamic component. This provides a rationale for the use of vasodilators to reduce intrahepatic resistance and portal pressure. Another factor contributing to aggravate the portal hypertension is a significant increase in portal blood flow, caused by arteriolar splanchnic vasodilation and hyperkinetic circulation. Splanchnic arteriolar vasodilation is a multifactorial phenomenon, which may involve local (endothelial) mechanisms as well as neurogenic and humoral pathways. Most pharmacological treatments have been aimed at correcting the increased portal blood inflow by the use of splanchnic vasoconstrictors, such as beta-blockers, vasopressin derivatives and somatostatin. Several studies have demonstrated that changes in the hepatic venous pressure gradient (HVPG) during maintenance therapy are useful to identify those patients who are going to have a variceal bleeding or rebleeding. The wide individual variation in the HVPG response to pharmacological treatment makes it desirable to schedule follow-up measurements of HVPG during pharmacological therapy. A priority for research in the forthcoming years is to develop accurate non-invasive methods to assess prognosis, which can be used to substitute or as surrogate indicators of the HVPG response. In the clinical management of portal hypertension, beta-blockers are at present the only accepted treatment for the prevention of variceal bleeding. Whether the association of isosorbide-5-mononitrate will improve the high efficacy of beta-blockers is questionable. The efficacy of more aggressive techniques, such as endoscopic band ligation, should be further tested against beta-blockers in patients with a high risk of bleeding. In the treatment of acute variceal bleeding, administration of somatostatin or terlipressin is an established therapy. It may be used alone or, preferably, as an initial treatment before sclerotherapy or endoscopic band ligation. No more than two sessions of endoscopic treatment should be used to control the bleeding. If the bleeding is not easily controlled, other alternatives such as transjugular intrahepatic portosystemic shunts (TIPS) or derivative surgery should be considered, the former being the best in patients with poor liver function. Recent studies suggest that early measurement of HVPG during variceal bleeding may be used as a guide for therapeutic decisions in the treatment of patients with acute variceal bleeding. Those patients with a high HVPG have a high risk of poor evolution, and may be candidates for more intensive and aggressive therapy, such as surgery or TIPS. Those with lower HVPG have a very high probability of an uneventful evolution, and may thus be managed more conservatively using medical and endoscopic treatments. Pharmacological agents (propranolol or nadolol), endoscopic treatment (preferably banding ligation) or surgery can be used to prevent rebleeding. A pending task for the new millennium is to assess whether the early treatment of asymptomatic, compensated cirrhotic patients with portal pressure reducing agents can prevent the development of esophageal varices and of other complications of portal hypertension. PMID:10728801

Bosch, J; García-Pagán, J C

2000-01-01

276

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

277

Education  

ERIC Educational Resources Information Center

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

Pulley, John

2009-01-01

278

An Online Image Analysis Tool for Science Education  

ERIC Educational Resources Information Center

This paper describes an online image analysis tool developed as part of an iterative, user-centered development of an online Virtual Learning Environment (VLE) called the Education through Virtual Experience (EVE) Portal. The VLE provides a Web portal through which schoolchildren and their teachers create scientific proposals, retrieve images and…

Raeside, L.; Busschots, B.; Waddington, S.; Keating, J. G.

2008-01-01

279

Noncirrhotic portal vein thrombosis. Physiology before and after shunts.  

PubMed Central

Controversy exists concerning the proper therapy for bleeding gastroesophageal varices secondary to noncirrhotic portal vein thrombosis. Disparity of opinion exists regarding the significance of hepatic portal blood flow and the consequences of total portal-systemic shunts in this condition. One patient is presented who developed severe, crippling encephalopathy 20 years after a central splenorenal shunt. This was associated with loss of portal flow to the liver and marked nitrogen intolerance. Closure of the shunt resulted in restoration of hepatic portal flow via collateral veins (HPI 0.36), clearance of encephalopathy and return to near normal protein tolerance. An additional patient was studied with hyperammonemia and early suggestive signs of encephalopathy eight years following a mesocaval shunt. Four patients were evaluated before and after selective distal splenorenal shunts. All had "cavernous transformation" of the portal vein with angiographic evidence of portal flow to the liver. Postoperative angiograms revealed continued hepatic portal perfusion and a patent shunt in each patient. Radionuclide imaging postoperatively gave an estimated portal fraction of total hepatic blood flow (HPI) of .39 and .60 in two of the four patients. We conclude that 1) there is significant hepatic portal perfusion in noncirrhotic portal vein thrombosis (cavernous transformation), 2) loss of this hepatic portal flow following total shunts can lead to severe encephalopathy, 3) the selective distal splenorenal shunt maintains hepatic portal perfusion and is the procedure of choice when there is a patent splenic vein and surgical intervention is indicated. Images Fig. 2. Fig. 3. Fig. 4. Fig. 5. Fig. 6. Fig. 7. Fig. 9a. Fig. 9b. Fig. 9c. PMID:7416830

Warren, W D; Millikan, W J; Smith, R B; Rypins, E B; Henderson, J M; Salam, A A; Hersh, T; Galambos, J T; Faraj, B A

1980-01-01

280

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. [from https://solarhighpen.energy.gov/about_the_high_penetration_solar_portal

281

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.

282

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

283

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

ERIC Educational Resources Information Center

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

Eisler, David L.

2001-01-01

284

Facilitation of gastric motility induced by portal infusion of hyper- and hypotonic solution in rats  

Microsoft Academic Search

The effects of the portal infusion of hyper- and hypotonic solution on gastric motility in rats were investigated. The infusion of hypertonic saline into the portal vein (portal infusion) elicited a significant enhancement of gastric contractile activity. The portal infusion of water also produced this enhancement. However, the portal infusion of isotonic saline showed no significant enhancement; nor did the

Motoi Kobashi; Masatoshi Mizutani; Akira Adachi

1998-01-01

285

Management of portal hypertension in children  

PubMed Central

Portal hypertension can be caused by a wide variety of conditions. It frequently presents with bleeding from esophageal varices. The approach to acute variceal hemorrhage in children is a stepwise progression from least invasive to most invasive. Management of acute variceal bleeding is straightforward. But data on primary prophylaxis and long term management prevention of recurrent variceal bleeding in children is scarce, therefore prospective multicenter trials are needed to establish best practices. PMID:22468080

Gugig, Roberto; Rosenthal, Philip

2012-01-01

286

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

287

Salvianolic Acid B Reducing Portal Hypertension Depends on Macrophages in Isolated Portal Perfused Rat Livers with Chronic Hepatitis  

PubMed Central

This study is aimed to investigate the effects of Sal B on portal hypertension (PH). PH with chronic hepatitis was induced by carbon tetrachloride (CCl4) in rats. The model was confirmed with elevated portal pressures and increased serum CD163 levels. The inducible nitric oxide synthase (iNOS) or heme oxygenase-1 (HO-1) in portal triads was assessed. The isolated portal perfused rat liver (IPPRL) was performed at d0, d28, d56 , and d84 in the progression of chronic hepatitis. After constricting with phenylephrine, the portal veins were relaxed with Sal B. The EC50 of Sal B for relaxing portal veins was ?2.04 × 10?9, 7.28 × 10?11, 1.52 × 10?11, and 8.44 × 10?11?mol/L at d0, d28, d56, and d84, respectively. More macrophages infiltrated in portal triads and expressed more iNOS or HO-1 as PH advanced. The areas under the curve (AUCs) of Sal B for reducing PH were positively correlated with the levels of iNOS or HO-1 in portal triads, and so did with serum CD163 levels. Sal B reduces PH in IPPRL with chronic hepatitis, via promoting portal relaxation due to macrophage-originated NO or CO in portal triads, partly at least. PMID:23118797

Zhao, Xin; Jia, Hongmei; Yang, Shijun; Liu, Yuetao; Deng, Bo; Xu, Xueyan; Zhang, Tao; Zhou, Hang; Zu, Chengzhe; Yin, He; Li, Ting; Song, Yijun; Wang, Yueqi; Li, Pengtao; Zou, Zhongmei; Cai, Dayong

2012-01-01

288

Photonic dark matter portal and quantum physics  

E-print Network

To identify the nature and properties of dark matter is one of the most serious open problems in modern physics. We study a model of dark matter in which the hidden sector interacts with ordinary matter (standard model particles) via photonic portal(hidden photonic portal). We search for the effects of this new interaction in quantum physics, therefore we study its effects on hydrogen atom because it is a simple and a well-studied quantum system so it can be considered as an outstanding test for dark matter signatures. Using the accuracy of the measurement of energy, we obtain an upper bound for the coupling constant of the model. We also calculate the contribution to the anomalous magnetic moment of muon due to the hidden photonic portal. At the moment there is a deviation between the standard model prediction for muon anomalous magnetic moment and its experimental value so the anomalous magnetic moment of muon can provide an important test of the standard model and the theories beyond it.

S. A. Alavi; F. S. Kazemian

2015-01-22

289

Explosives detection portal for high-volume personnel screening  

NASA Astrophysics Data System (ADS)

We discuss a trace explosive detection portal for high-volume personnel screening, which has been developed recently at Sandia National Laboratories (SNL), using funding provided by the Federal Aviation Administration (FAA) and the Department of Energy (DOE) Office of Safeguards and Security (OSS). This portal screens individuals for explosives using noninvasive means to collect explosive residue in the forms of vapor and particulate contamination. The portal combines a commercially available ion mobility spectrometer (IMS) with a preconcentrator developed at SNL to perform detection of explosives. The prototype portal has undergone one series of tests at the Albuquerque International Airport, and we are now proceeding to develop an improved, second-generation portal, and to find a company to market the portal.

Parmeter, John E.; Linker, Kevin L.; Rhykerd, Charles L.; Hannum, David W.; Bouchier, Francis A.

1998-12-01

290

Medical and surgical management of portal hypertension in children  

Microsoft Academic Search

The treatment of portal hypertension in children has undergone considerable evolution in the past decade. The treatment offered\\u000a depends on the cause of the hypertension and the underlying health of the liver. The diagnosis of portal hypertension often\\u000a can be made by the history and physical examination. Upper gastrointestinal bleeding in the presence of splenic enlargement\\u000a is pathognomonic for portal

Riccardo A. Superina; Estella M. Alonso

2006-01-01

291

Arterialization of the portal vein in pediatric liver transplantation  

Microsoft Academic Search

Portal vein arterialization (PVA) is an acquired concept in shunt surgery for portal hypertension. This technique, recently\\u000a described as both a temporary and permanent procedure in adult liver transplantation, is reported by the authors in two cases\\u000a of pediatric transplantation. The indication was low portal blood flow after reperfusion with poor graft function due to persistence\\u000a of spontaneous retroperitoneal venous

Roberto Troisi; Ilse Kerremans; Eric Mortier; Luc Defreyne; Uwe J. Hesse; Bernard de Hemptinne

1998-01-01

292

Portal Hypertensive Gastropathy: Correlation with Portal Hypertension and Prognosis in Cirrhosis  

Microsoft Academic Search

Background  Portal hypertensive gastropathy (PHG) is a common endoscopic finding in patients with cirrhosis. However, the relationship\\u000a between PHG and portal hypertension is controversial. Furthermore, nothing is known regarding the correlation between PHG\\u000a and prognosis in patients with cirrhosis.\\u000a \\u000a \\u000a \\u000a \\u000a Methods  The hepatic venous pressure gradient (HVPG), endoscopic PHG grade, Child–Pugh score, and model for end-stage liver disease\\u000a (MELD) score were assessed at

Moon Young Kim; Hoon Choi; Soon Koo Baik; Chang Jin Yea; Chan Sik Won; Jong Won Byun; So Yeon Park; Yong Hwan Kwon; Jae Woo Kim; Hyun Soo Kim; Sang Ok Kwon; Young Ju Kim; Seung Hwan Cha; Sei Jin Chang

2010-01-01

293

Portal venous aneurysms--report of 4 cases.  

PubMed

Portal venous aneurysms are rare and are usually discovered as incidental findings on abdominal imaging studies. Although most are asymptomatic, they may occasionally cause symptoms of compression of an adjacent structure, thrombosis, or bleeding. Treatment is usually not necessary and conservative follow-up is suggested. We present four patients with portal system aneurysms. One patient had a 10.5 cm thrombosed aneurysm, one had a right 3.5 cm intrahepatic portal aneurysm, one patient had a symptomatic 4 cm splenic artery aneurysm, which was repaired, and one patient had a 4 cm aneurysm at the confluence of the splenic and portal veins. PMID:20471219

Oleske, Alexandra; Hines, George L

2010-07-01

294

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

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

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

295

77 FR 67738 - Proposed Information Collection (eBenefits Portal) Activity: Comment Request  

Federal Register 2010, 2011, 2012, 2013, 2014

...Proposed Information Collection (eBenefits Portal) Activity: Comment Request AGENCY...information needed to access the eBenefits portal. DATES: Written comments and recommendations...information technology. Title: eBenefits Portal. OMB Control Number: 2900-0737....

2012-11-13

296

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

Code of Federal Regulations, 2011 CFR

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

2011-07-01

297

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

298

“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

299

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

300

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

301

EarthTrends: The Environmental Information Portal  

NSDL National Science Digital Library

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

302

Glytan decreases portal pressure via mesentery vasoconstriction in portal hypertensive rats  

PubMed Central

AIM: To investigate the effects of Glytan on splanchnic hemodynamics and its reduction of portal pressure in portal hypertensive rats. METHODS: Glytan (Ganluotong in Chinese), is composed of salvianolic acid B and diammonium glycyrrhizinate. Portal hypertension (PHT) was induced in the rats by common bile duct ligation (BDL). Hemodynamic studies were performed using the colored microsphere method. Radioimmunoassay (RIA) was used to determine endothelin (ET)-1 levels in the mesenteric circulation. Western blotting methods were used to investigate the effect of Glytan on ET A receptor (ETAR), ET B receptor (ETBR), endothelial NO synthase (eNOS), G-protein-coupled receptor kinase (GRK)2, and ?-arrestin 2 expression in the mesentery. The mRNA of ETAR and ETBR was determined using real-time polymerase chain reaction. RESULTS: Treatment with Glytan reduced portal pressure (PP) and portal territory blood flow (PTBF) and increased both mean arterial pressure (MAP) and splanchnic vascular resistance (SVR). Especially at 4 wk, PP decreased by about 40%, while MAP increased by 13%, SVR increased by 12%, and PTBF decreased by about 21%. The effect of blood flow reduction was greatest in the mesentery (about 33%) at 4 wk. The mesenteric circulation ET-1 levels of BDL rats were lower and negatively correlated with PP at 4 wk. Glytan can increase mesenteric ET-1 content and inhibit ETBR, eNOS, GRK2, and ?-arrestin 2 expression in the mesentery. Moreover, Glytan showed no effect on the expression of ETAR protein and mRNA. CONCLUSION: The decreased PP and PTBF observed after Glytan treatment were related to increased mesenteric vasoconstriction and increased receptor sensitivity to vasoconstrictor. PMID:25469036

Du, Qing-Hong; Han, Lin; Jiang, Jun-Jie; Xu, Ya; Li, Wei-Hong; Li, Peng-Tao; Wang, Xin-Yue; Jia, Xu

2014-01-01

303

Developing a text categorization template for Turkish news portals  

Microsoft Academic Search

In news portals, text category information is needed for news presentation. However, for many news stories the category information is unavailable, incorrectly assigned or too generic. This makes the text categorization a necessary tool for news portals. Automated text categorization (ATC) is a multifaceted difficult process that involves decisions regarding tuning of several parameters, term weighting, word stemming, word stopping,

Cagri Toraman; Fazli Can; Seyit Kocberber

2011-01-01

304

SEAL: a framework for developing SEmantic PortALs  

Microsoft Academic Search

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

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

2001-01-01

305

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

306

Virginia Tech Electronic Invoice Suppliers Supplier Name Portal?  

E-print Network

Express Corporation Bio-Rad Laboratories CDW-G Complete Book & Media Supply Inc. Yes Dell Marketing LP Fisher New River Office Supply Inc Yes Qiagen Inc Sigma-Aldrich Inc Spectrum Chemicals & Laboratory Products VWR International Inc W W Grainger Inc Portal means that supplier goes into HokieMart supplier portal

Buehrer, R. Michael

307

Role of Vascular Endothelial Growth Factor in Portal Hypertensive Gastropathy  

Microsoft Academic Search

Background and Aims: Portal hypertensive gastropathy (PHG) is now recognized as a distinct entity; however, the angiogenesis in the portal hypertensive gastric mucosa has yet to be elucidated. Vascular endothelial growth factor (VEGF) is a potent angiogenic factor involved in both physiological and pathological angiogenesis. The aim of this study was thus to examine the function of VEGF in the

Kouji Tsugawa; Makoto Hashizume; Shinichirou Migou; Fumiaki Kishihara; Hirofumi Kawanaka; Morimasa Tomikawa; Keizo Sugimachi

2000-01-01

308

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

309

6. East portal of Tunnel 17, oblique view to westsouthwest, ...  

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

6. East portal of Tunnel 17, oblique view to west-southwest, 90mm lens. This view shows to advantage the stepped concrete wingwalls and fitted stone masonry coping protection flanking the portal, features typical of the Southern Pacific Common Standard tunnels of this period. - Southern Pacific Railroad Natron Cutoff, Tunnel No. 17, Milepost 408, Dorris, Siskiyou County, CA

310

3. VIEW SOUTHEAST VIEW OF EAST PORTAL SHOWING SKEW AND ...  

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

3. VIEW SOUTHEAST- VIEW OF EAST PORTAL SHOWING SKEW AND PORTAL BRACING. - National Docks Branch Bridge N.D.2F, Spans former Central Railroad of New Jersey , west of New Jersey Turnpike, north of Communipaw Avenue near Johnson Avenue, Jersey City, Hudson County, NJ

311

Influence of Extraterrestrial Radiation on Radiation Portal Monitors  

Microsoft Academic Search

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,

Paul E. Keller; Richard T. Kouzes

2009-01-01

312

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

313

Bleeding Ectopic Varices as the First Manifestation of Portal Hypertension  

PubMed Central

Ectopic varices are defined as dilated portosystemic collateral veins in locations other than the gastroesophageal region. We present a case of recurrent upper gastrointestinal bleeding as the first manifestation of portal hypertension. We diagnosed ectopic duodenal varices without gastroesophageal varices on upper GI endoscopy and extrahepatic portal venous obstruction (EHPVO) on CT angiography and managed this case. PMID:25374725

Sharma, Brij; Raina, Sujeet; Sharma, Rajesh

2014-01-01

314

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

315

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

316

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

317

Coupled Deterministic-Monte Carlo Transport for Radiation Portal Modeling  

Microsoft Academic Search

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

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

2008-01-01

318

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

319

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

ERIC Educational Resources Information Center

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

Harr, Gary Lynn

320

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

321

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

322

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

323

Collaborative Reverse Engineering by Using a Web Portal  

Microsoft Academic Search

The future engineering teams will work in a web-based collaborative environment, where designers, process planners, manufacturers, and even clients can communicate and coordinate through web portals. In this paper, a suggestion is given, based on ideas of the collaborative design, applied on a reverse engineering project of a cordless hand drill and supported by the web portal.

Vukica Jovanovic; Lei M; Qiong Li; Mileta M. Tomovic

2007-01-01

324

A Workflow Job Manager for the Nevada Climate Change Portal  

E-print Network

A Workflow Job Manager for the Nevada Climate Change Portal Ivan Gibbs, Eric Fritzinger, Sergiu M of Nevada, Reno dubbed the Nevada Climate Change Portal is currently being developed to assist in providing-based job manager. Modern software technologies such as .Net, Silverlight, WSDL, SOAP, and Graphviz are used

Dascalu, Sergiu

325

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

326

Stent Recanalization of Chronic Portal Vein Occlusion in a Child  

SciTech Connect

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

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

2000-07-15

327

Metadot Portal Server 6.2b7  

NSDL National Science Digital Library

The Scout Report likes to keep an eye out for helpful applications, and this latest release of the Metadot Portal Server may be a nice addition for some of our readers. The program is an open source portal system that is designed for ease of use (and as such, is relatively simple to figure out) and can be used to create websites and portals in a short period of time. One obvious use of the program is to allow far-flung users to collectively collaborate on various projects through the use of their file and document management capabilities. For users looking for ideas of what can be done with Metadot Portal Server 6.2b7, they may look at the online portfolio of live implementations created with the program, including those created by NASA and the World Health Organization. This version of Metadot Portal Server is compatible with all systems running Mac OS X and Linux.

328

The NOAO NVO Portal: Client-Side VO  

NASA Astrophysics Data System (ADS)

The NOAO National Virtual Observatory (NVO) portal is a recently deployed web application for one-stop discovery, analysis, and access to VO-compliant imaging data and services. The NOAO NVO portal utilizes Simple Image Access Protocol (SIAP) services provided by some astronomical archives. The portal also utilizes a number of SOAP-based VO web services (WESIX, Sesame, etc). We discuss the design decisions and technology choices that were made in the NOAO NVO portal code to facilitate the use of IVOA standards and VO data/services. This includes a new Virtual Observatory library written for Ruby: an interpreted scripting language for quick and easy object-oriented programming. We provide an overview of VORuby and how it is utilized in the NOAO NVO Portal.

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

2007-10-01

329

Management of Gastropathy and Gastric Vascular Ectasia in Portal Hypertension  

PubMed Central

Synopsis Portal hypertensive gastropathy and gastric antral vascular ectasia may cause gastrointestinal hemorrhage in patients with portal hypertension. While the former presents exclusively in patients with portal hypertension; gastric antral vascular ectasia can also be observed in patients with other conditions. Diagnosis is established with upper gastrointestinal endoscopy, although some cases may require a biopsy to confirm the diagnosis. The most frequent manifestation is ferropenic anemia that may become transfusion dependent. Treatment in portal hypertensive gastropathy is focused on portal pressure reducing drugs, mainly non selective beta-blockers while in gastric antral vascular ectasia it is based on endoscopic ablation. More invasive options can be utilized in case of failure of first line therapies, although this should be evaluated on a case-by-case basis. PMID:20682235

Ripoll, Cristina; Garcia-Tsao, Guadalupe

2010-01-01

330

A Web portal for CMS Grid job submission and management  

NASA Astrophysics Data System (ADS)

We present a Web portal for CMS Grid submission and management. The portal is built using a JBoss application server. It has a three tier architecture; presentation, business logic and data. Bean based business logic interacts with the underlying Grid infrastructure and pre-existing external applications, while the presentation layer uses AJAX to offer an intuitive, functional interface to the back-end. Application data aggregating information from the portal as well as the external applications is persisted to the server memory cache and then to a backend database. We describe how the portal exploits standard, off-the-shelf commodity software together with existing Grid infrastructures in order to facilitate job submission and monitoring for the CMS collaboration. This paper describes the design, development, current functionality and plans for future enhancements of the portal.

Braun, David; Neumeister, Norbert

2010-04-01

331

EHR/PHR Basics  

MedlinePLUS

... Electronic Health Records. Photo: iStock A Sample Health Record You've probably seen the records and charts ... their dates Chronic diseases Family illness history Health Records—What's In a Name? Health records are undergoing ...

332

Online curriculum on the semantic Web: the CSD-UoC portal for peer-to-peer e-learning  

Microsoft Academic Search

Online Curriculum Portals aim to support networks of instructors and learners by providing a space of convergence for enhancing peer-to-peer learning interactions among individuals of an educational institution. To this end, effective, open and scalable e-learning systems are required to acquire, store, and share knowledge under the form of learning objects (LO). In this paper, we are interested in exploiting

Dimitris Kotzinos; Sofia Pediaditaki; Apostolos Apostolidis; Nikolaos Athanasis; Vassilis Christophides

2005-01-01

333

The Anatomy of a Grid portal  

NASA Astrophysics Data System (ADS)

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 machine. It allows to reduce the time spent for the job submission, granting at the same time a higher efficiency and a better security level in proxy delegation and management.

Licari, Daniele; Calzolari, Federico

2011-12-01

334

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

335

Perturbative Unitarity Constraints on Gauge Portals  

E-print Network

Dark matter that was once in thermal equilibrium with the Standard Model is generally prohibited from obtaining all of its mass from the electroweak phase transition. This implies a new scale of physics and mediator particles to facilitate dark matter annihilation. In this work, we focus on dark matter that annihilates through a generic gauge boson portal. We show how partial wave unitarity places upper bounds on the dark gauge boson, dark Higgs and dark matter masses. Outside of well-defined fine-tuned regions, we find an upper bound of 9 TeV for the dark matter mass when the dark Higgs and dark gauge bosons both facilitate the dark matter annihilations. In this scenario, the upper bound on the dark Higgs and dark gauge boson masses are 10 TeV and 16 TeV, respectively. When only the dark gauge boson facilitates dark matter annihilations, we find an upper bound of 3 TeV and 6 TeV for the dark matter and dark gauge boson, respectively. Overall, using the gauge portal as a template, we describe a method to not only place upper bounds on the dark matter mass but also on the new particles with Standard Model quantum numbers. We briefly discuss the reach of future accelerator, direct and indirect detection experiments for this class of models.

Sonia El Hedri; William Shepherd; Devin G. E. Walker

2014-12-17

336

Software tool for portal dosimetry research.  

PubMed

This paper describes a software tool developed for research into the use of an electronic portal imaging device (EPID) to verify dose for intensity modulated radiation therapy (IMRT) beams. A portal dose image prediction (PDIP) model that predicts the EPID response to IMRT beams has been implemented into a commercially available treatment planning system (TPS). The software tool described in this work was developed to modify the TPS PDIP model by incorporating correction factors into the predicted EPID image to account for the difference in EPID response to open beam radiation and multileaf collimator (MLC) transmitted radiation. The processes performed by the software tool include; i) read the MLC file and the PDIP from the TPS, ii) calculate the fraction of beam-on time that each point in the IMRT beam is shielded by MLC leaves, iii) interpolate correction factors from look-up tables, iv) create a corrected PDIP image from the product of the original PDIP and the correction factors and write the corrected image to file, v) display, analyse, and export various image datasets. The software tool was developed using the Microsoft Visual Studio.NET framework with the C# compiler. The operation of the software tool was validated. This software provided useful tools for EPID dosimetry research, and it is being utilised and further developed in ongoing EPID dosimetry and IMRT dosimetry projects. PMID:18946980

Vial, P; Hunt, P; Greer, P B; Oliver, L; Baldock, C

2008-09-01

337

Portal vein thrombosis: What is new?  

PubMed

Portal vein thrombosis (PVT) is one of the most common vascular disorders of the liver with significant morbidity and mortality. Large cohort studies have reported a global prevalence of 1%, but in some risk groups it can be up to 26%. Causes of PVT are cirrhosis, hepatobiliary malignancy, abdominal infectious or inflammatory diseases, and myeloproliferative disorders. Most patients with PVT have a general risk factor. The natural history of PVT results in portal hypertension leading to splenomegaly and the formation of portosystemic collateral blood vessels and esophageal, gastric, duodenal, and jejunal varices. Diagnosis of PVT is made by imaging, mainly Doppler ultrasonography. According to its time of development, localization, pathophysiology, and evolution, PVT should be classified in every patient. Some clinical features such as cirrhosis, hepatocellular carcinoma, and hepatic transplantation are areas of special interest and are discussed in this review. The goal of treatment of acute PVT is to reconstruct the blocked veins. Endoscopic variceal ligation is safe and highly effective in patients with variceal bleeding caused by chronic PVT. In conclusion, PVT is the most common cause of vascular disease of the liver and its prevalence has being increasing, especially among patients with an underlying liver disease. All patients should be investigated for thrombophilic conditions, and in those with cirrhosis, anticoagulation prophylaxis should be considered. PMID:25536638

Manzano-Robleda, María Del Carmen; Barranco-Fragoso, Beatriz; Uribe, Misael; Méndez-Sánchez, Nahum

2015-01-01

338

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

339

Desenvolvimento do Portal dos Jogos Cooperativos Computacionais  

Microsoft Academic Search

In the context of the revision of traditional education methodologies, and the increasing use of computers and the Internet in education, this work describes the project and the construction of a Computational Cooperative Games Site (www.comp.ufla.br\\/pjcc\\/), which can be used as learning tool in basic education schools.

Rubens Takiguti Ribeiro; Carlos Eduardo; Magalhães Cobucci; José Monserrat Neto; Renata Couto Moreira

340

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.

341

Utility of endoscopic ultrasound in patients with portal hypertension.  

PubMed

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

2014-10-21

342

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

NASA Astrophysics Data System (ADS)

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

Yaar, Ilan; Peysakhov, Ilya

2013-06-01

343

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

344

Enabling OpenID Authentication for VO-integrated Portals  

NASA Astrophysics Data System (ADS)

To support interoperating services that share proprietary data and other user-specific information, the VAO Project provides login services for browser-based portals built on the open standard, OpenID. To help portal developers take advantage of this service, we have developed a downloadable toolkit for integrating OpenID single sign-on support into any portal. This toolkit provides APIs in a few languages commonly used on the server-side as well as a command-line version for use in any language. In addition to describing how to use this toolkit, we also discuss the general VAO framework for single sign-on. While a portal may, if it wishes, support any OpenID provider, the VAO service provides a few extra features to support VO interoperability. This includes a portal's ability to retrieve (with the user's permission) an X.509 certificate representing the authenticated user so that the portal can access other restricted services on the user's behalf. Other standard features of OpenID allow portals to request other information about the user; this feature will be used in the future for sharing information about a user's group membership to enable sharing within a group of collaborating scientists.

Plante, R.; Yekkirala, V.; Baker, W.

2012-09-01

345

Semantic Portals allow for integrated and syndi-cated data views on information by using onto-  

E-print Network

provided by these ontologies and portal specific data (i. e. News, Appointments, etc.) in a personalized by Visualiza- tion Templates (Velocity4 Templates). 2.2 Portal Customization To customize the SWAD-E portalAbstract Semantic Portals allow for integrated and syndi- cated data views on information by using

Henze, Nicola

346

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

347

Portal glucose delivery stimulates muscle but not liver protein metabolism.  

PubMed

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

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

2012-11-15

348

Carvedilol in the Treatment of Portal Hypertension  

PubMed Central

Variceal bleeding is a major event in the natural history of end-stage liver disease with a subsequent high mortality rate. Non-selective ?-blockers are currently the drugs of choice for preventing first variceal bleeding. Endoscopic rubber band ligation of high risk varices features as a first line option if cirrhotic patients cannot tolerate ?-blockers. Despite adequate ?-blockade, some patients may still present with variceal bleeding. The effect of carvedilol, a non-selective ? and ?-1 receptor-blocker, on lowering portal pressure has been investigated in several clinical trials and found to be superior to propranolol in both acute and chronic hemodynamic studies. Recently, carvedilol has also been compared with band ligation for primary prophylaxis against variceal bleeding with equivalent results to band ligation. Patient tolerance to carvedilol in advanced liver disease remains a source of concern. This review examines the place of carvedilol as an alternative to the currently recommended pharmacological therapy in prophylaxis against variceal bleeding. PMID:21372358

Al-Ghamdi, Hamdan

2011-01-01

349

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

350

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

351

Portal dosimetry for VMAT using integrated images obtained during treatment  

SciTech Connect

Purpose: Portal dosimetry provides an accurate and convenient means of verifying dose delivered to the patient. A simple method for carrying out portal dosimetry for volumetric modulated arc therapy (VMAT) is described, together with phantom measurements demonstrating the validity of the approach. Methods: Portal images were predicted by projecting dose in the isocentric plane through to the portal image plane, with exponential attenuation and convolution with a double-Gaussian scatter function. Appropriate parameters for the projection were selected by fitting the calculation model to portal images measured on an iViewGT portal imager (Elekta AB, Stockholm, Sweden) for a variety of phantom thicknesses and field sizes. This model was then used to predict the portal image resulting from each control point of a VMAT arc. Finally, all these control point images were summed to predict the overall integrated portal image for the whole arc. The calculated and measured integrated portal images were compared for three lung and three esophagus plans delivered to a thorax phantom, and three prostate plans delivered to a homogeneous phantom, using a gamma index for 3% and 3 mm. A 0.6 cm{sup 3} ionization chamber was used to verify the planned isocentric dose. The sensitivity of this method to errors in monitor units, field shaping, gantry angle, and phantom position was also evaluated by means of computer simulations. Results: The calculation model for portal dose prediction was able to accurately compute the portal images due to simple square fields delivered to solid water phantoms. The integrated images of VMAT treatments delivered to phantoms were also correctly predicted by the method. The proportion of the images with a gamma index of less than unity was 93.7% ± 3.0% (1SD) and the difference between isocenter dose calculated by the planning system and measured by the ionization chamber was 0.8% ± 1.0%. The method was highly sensitive to errors in monitor units and field shape, but less sensitive to errors in gantry angle or phantom position. Conclusions: This method of predicting integrated portal images provides a convenient means of verifying dose delivered using VMAT, with minimal image acquisition and data processing requirements.

Bedford, James L., E-mail: James.Bedford@icr.ac.uk; Hanson, Ian M.; Hansen, Vibeke Nordmark [Joint Department of Physics, The Institute of Cancer Research and The Royal Marsden NHS Foundation Trust, Downs Road, Sutton, Surrey SM2 5PT (United Kingdom)] [Joint Department of Physics, The Institute of Cancer Research and The Royal Marsden NHS Foundation Trust, Downs Road, Sutton, Surrey SM2 5PT (United Kingdom)

2014-02-15

352

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

353

Spontaneous Portoazygos Shunt in a Patient with Portal Hypertension  

PubMed Central

We present a case of spontaneous portoazygos shunt in a patient with liver cirrhosis and portal hypertension. The shunt was incidentally detected by abdominal magnetic resonance imaging for routine evaluation of liver cirrhosis. Multiplanar reconstruction images demonstrated the portal vein communicating with the azygos vein that was dilated and tortuous along its course to the mediastinum. Although there has been a case of congenital portoazygos shunt reported in a neonate with multiple congenital anomalies, to the best of our knowledge, this is the first case of spontaneous portoazygos shunt developed in an adult with portal hypertension. PMID:24421946

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

2013-01-01

354

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. PMID:25276606

Matsuda, Dean K.; Villamor, Angel

2014-01-01

355

Dark Matter Through the Neutrino Portal  

E-print Network

We consider a model of dark matter whose most prominent signature is a monochromatic flux of TeV neutrinos from the galactic center. As an example of a general scenario, we consider a specific model where the dark matter is a fermion in the adjoint representation of a hidden SU(N) gauge group that confines at GeV energies. The absence of light fermionic states in the dark sector ensures stability of dark matter on cosmological time scales. Dark matter couples to the standard model via the neutrino portal, that is, the singlet operator H L constructed from the Higgs and lepton doublets, which is the lowest dimensional fermionic singlet operator in the standard model. This coupling prompts dark matter decay where the dominant decay channel has one neutrino (and at least one dark glueball) in the final state. Other decay channels with charged standard model particles involve more particles in the final state and are therefore suppressed by phase space. In consequence, the standard indirect detection signals like gamma-ray photons, antiprotons and positrons are suppressed with respect to the neutrino signal. This coupling via the neutrino portal is most robustly constrained by Super-Kamiokande, which restricts the dark matter lifetime to be larger than 10^25 seconds. In the near future, the scenario will be probed by the new generation of neutrino telescopes. ANTARES will be sensitive to a dark matter lifetime of order 10^26 seconds, while IceCube/DeepCore can probe a lifetime as large as 10^27 seconds.

Adam Falkowski; Jose Juknevich; Jessie Shelton

2009-08-13

356

Results of endoscopic variceal sclerotherapy: Influence of etiology of portal hypertension and hepatic functional status  

Microsoft Academic Search

Summary  In India 50% of patients with gastrointestinal bleeding bleed from esophageal varices. Causes of portal hypertension includes\\u000a hepatic cirrhosis, non-cirrhotic portal fibrosis and extrahepatic portal obstruction. Endoscopic sclerotherapy is the treatment\\u000a of choice to control continued active bleeding. Immediate hemostasis was not influenced by the etiology of portal hypertension.\\u000a However, rebleeding episodes were lower, in extrahepatic portal vein obstruction than

Dinesh K. Bhargava; S. Dasarathy; K. R. Sundaram; R. K. Ahuja

1991-01-01

357

Idiopathic non-cirrhotic intrahepatic portal hypertension: common cause of cryptogenic intrahepatic portal hypertension in a Southern Indian tertiary hospital  

Microsoft Academic Search

Background and aim  Patients with intrahepatic portal hypertension and negative etiological work-up for liver disease are often labeled as having\\u000a cryptogenic cirrhosis. The aim of this study was to evaluate causes of liver disease in patients with unexplained intrahepatic\\u000a portal hypertension.\\u000a \\u000a \\u000a \\u000a Methods  We retrospectively analyzed cause of liver disease in all patients with cryptogenic intrahepatic portal hypertension who underwent\\u000a liver biopsies between

Kadiyala Madhu; Balekuduru Avinash; Banumathi Ramakrishna; C. E. Eapen; N. K. Shyamkumar; Uday Zachariah; George Chandy; George Kurian

2009-01-01

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

4. LOOKING LANDWARD TO SOUTHEAST, PAST MANHOLE, TO ABANDONED PORTAL. ...  

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

4. LOOKING LANDWARD TO SOUTHEAST, PAST MANHOLE, TO ABANDONED PORTAL. - Mile Rock Tunnel, Under Forty-eighth Avenue from Cabrillo Street to San Francisco Bay at Point Lobos, San Francisco, San Francisco County, CA

360

South portal of Culvert No. 1508 in Old Town, Maryland, ...  

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

South portal of Culvert No. 1508 in Old Town, Maryland, looking north. - Western Maryland Railway, Cumberland Extension, Pearre to North Branch, from WM milepost 125 to 160, Pearre, Washington County, MD

361

B & P Tunnel east portal & North Avenue Bridge. ...  

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

B & P Tunnel east portal & North Avenue Bridge. Baltimore, Baltimore City, MD. Sec. 1201, MP 96.00. - Northeast Railroad Corridor, Amtrak route between District of Columbia/Maryland state line & Maryland/Delaware state line, Baltimore, Independent City, MD

362

B & P Tunnel west portal. Baltimore, Baltimore City, MD. ...  

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

B & P Tunnel west portal. Baltimore, Baltimore City, MD. Sec. 1201, MP 97.43. - Northeast Railroad Corridor, Amtrak route between District of Columbia/Maryland state line & Maryland/Delaware state line, Baltimore, Independent City, MD

363

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

364

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

365

VIEW OF WYE FROM SOUTH PORTAL OF HOT METAL BRIDGE. ...  

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

VIEW OF WYE FROM SOUTH PORTAL OF HOT METAL BRIDGE. - Jones & Laughlin Steel Corporation, Pittsburgh Works, Morgan Billet Mill Engine, 550 feet north of East Carson Street, opposite South Twenty-seventh Street, Pittsburgh, Allegheny County, PA

366

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

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

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

367

4. West portal of Tunnel 5, view to the northwest ...  

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

4. West portal of Tunnel 5, view to the northwest from within the mudshed, 135mm lens with electronic flash fill. - Southern Pacific Railroad Natron Cutoff, Tunnel 5, Milepost 545.2, McCredie Springs, Lane County, OR

368

5. East portal of Tunnel 5, contextual view to the ...  

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

5. East portal of Tunnel 5, contextual view to the northeast from the west end of Cruzette Siding, 210mm lens. - Southern Pacific Railroad Natron Cutoff, Tunnel 5, Milepost 545.2, McCredie Springs, Lane County, OR

369

1. West portal of Tunnel 17, contextual view to northeast, ...  

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

1. West portal of Tunnel 17, contextual view to northeast, 135mm lens. The tunnel penetrates the toe of Dorris Hill, which rises to the left. - Southern Pacific Railroad Natron Cutoff, Tunnel No. 17, Milepost 408, Dorris, Siskiyou County, CA

370

1. West portal of Tunnel 22, contextual view to the ...  

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

1. West portal of Tunnel 22, contextual view to the northwest, 135mm lens. Tunnel 22 pierces a ridge separating Oakridge from Westfir. - Southern Pacific Railroad Natron Cutoff, Tunnel 22, Milepost 581.85, Oakridge, Lane County, OR

371

Outsourcing the Portal: Another Branch in the Decision Tree.  

ERIC Educational Resources Information Center

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

McMahon, Tim

2000-01-01

372

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

373

7. Detail of Minnesota (southeast) portal of bridge, from the ...  

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

7. Detail of Minnesota (southeast) portal of bridge, from the southeast - Enloe Bridge No. 90021, Spanning Red River of North between Minnesota & North Dakota on County State Aid Highway 28, Wolverton, Wilkin County, MN

374

An Inverse Source Location Algorithm for Radiation Portal Monitor Applications  

E-print Network

Radiation portal monitors are being deployed at border crossings throughout the world to prevent the smuggling of nuclear and radiological materials; however, a tension exists between security and the free-flow of commerce. Delays at ports...

Miller, Karen Ann

2011-08-08

375

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

376

17. DETAIL OF SOUTH PORTAL, SHOWING "TREE OF LIFE" RAILING ...  

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

17. DETAIL OF SOUTH PORTAL, SHOWING "TREE OF LIFE" RAILING DETAIL AS WELL AS BUILDER'S PLATE. - Falls Bridge, Spanning Schuylkill River, connecting East & West River Drives, Philadelphia, Philadelphia County, PA

377

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

378

Congenital absence of portal vein presenting as hepatopulmonary syndrome.  

PubMed

A 9-year-old girl presented with cyanosis and decreased exercise tolerance. Chest X-ray, lung function and echocardiogram were normal. Contrasted echocardiogram showed intrapulmonary right to left shunt and computerized tomography of the thorax showed dilated pulmonary vasculature. There was no arteriovenous malformation. Computerized tomography of the abdomen revealed absence of the intrahepatic portion of the portal vein. The superior mesenteric and splenic veins joined as a common trunk, bypassed the liver and drained into the right atrium. We concluded that the patient had hepatopulmonary syndrome secondary to absence of the portal vein. This is the first report of hepatopulmonary syndrome in a female paediatric patient with a congenital absence of the portal vein. As all portal blood entered directly into systemic circulation, the condition was equivalent to congenital portosystemic shunt. Cases of congenital portosystemic shunt complicated by hepatopulmonary syndrome were also reviewed. PMID:15670231

Cheung, K M; Lee, C Y; Wong, C T; Chan, A K H

2005-01-01

379

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

380

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

381

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

382

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

383

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

384

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

385

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

386

General view of north portals showing three abandoned roadbeds. View ...  

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

General view of north portals showing three abandoned roadbeds. View south - New York, New Haven & Hartford Railroad, Fort Point Channel Rolling Lift Bridge, Spanning Fort Point Channel, Boston, Suffolk County, MA

387

Hidden Magnetic Portals Around Earth - Duration: 3:54.  

NASA Video Gallery

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

388

36. EAST (CANADIAN) PORTAL OF MAIN SECTION OF BRIDGE, SHOWING ...  

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

36. EAST (CANADIAN) PORTAL OF MAIN SECTION OF BRIDGE, SHOWING PANEL OVER PIER C IN CENTER. VIEW TO WEST. - Blue Water Bridge, Spanning St. Clair River at I-69, I-94, & Canadian Route 402, Port Huron, St. Clair County, MI

389

2. CONFLUENCE POOL, DETAIL OF TUNNEL PORTAL WITH WATER ENTERING ...  

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

2. CONFLUENCE POOL, DETAIL OF TUNNEL PORTAL WITH WATER ENTERING FROM SANTA ANA RIVER. VIEW TO NORTHEAST. - Santa Ana River Hydroelectric System, Bear Creek Diversion Dam & Confluence Pool, Redlands, San Bernardino County, CA

390

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

391

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

392

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

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

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

393

4. Threequarter view, north elevation and west portal; view looking ...  

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

4. Three-quarter view, north elevation and west portal; view looking east, southeast - St. Louis Avenue Viaduct, Spanning Kansas City Terminal Railroad at Beardsley Road & Bluff Street, Kansas City, Jackson County, MO

394

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

PubMed

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

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

2011-05-01

395

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

396

Endovascular Treatment of a Portal Vein Tear During TIPSS  

SciTech Connect

During a transjugular portosystemic stent-shunt (TIPSS) procedure a portal vein laceration occurred with subsequent intraperitoneal hemorrhage. A PTFE-covered nitinol stent was successfully placed eliminating the leak and creating a functioning portosystemic shunt. This case demonstrates both the importance of portal vein puncture more than 1 cm from the bifurcation and the necessity of maintaining a stock of available stent-grafts.

Owen, Richard J.T.; Rose, John D.G. [Department of Clinical Radiology, Freeman Hospital, Newcastle upon Tyne, NE7 7DN (United Kingdom)

2000-03-15

397

Embolisation portale préopératoire par Amplatzer ® Vascular Plugs (AVP) : 17 patients  

Microsoft Academic Search

The purpose was to determine the efficacy and technical particularities related to the use of Amplatzer® Vascular Plugs (AVP) for preoperative portal vein embolization. Between 2005 and 2009, a total of 48 type I AVP were embolized into the portal venous system of 17 patients (51–83years) prior to extended hepatic resection where the residual liver volume (RLV) was deemed sufficient (RLV < 35–40% in

A.-C. Kalenderian; P. Chabrot; E. Buc; L. Cassagnes; A. Ravel; D. Pezet; L. Boyer

2011-01-01

398

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

399

Causes and Management of Portal Hypertension in the Pediatric Population  

Microsoft Academic Search

The survival of children with portal hypertension has improved over the past decade owing to significant improvements in both\\u000a medical and surgical therapy. These improvements have included progress in the pharmacologic control of acute portal hypertensive\\u000a hemorrhage and improved efficacy and safety of endoscopic methods to treat acute esophageal variceal hemorrhage. However,\\u000a despite these changes, there remains a significant role

Frederick C. Ryckman; Maria H. Alonso; Greg Tiao

400

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

401

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

402

Current Status of the Japanese Virtual Observatory Portal  

NASA Astrophysics Data System (ADS)

The Japanese Virtual Observatory (JVO) portal is a web portal for accessing astronomical data and analysis system through the Internet. In the years of 2009 and 2010, we have developed two new access interfaces: JVOSky and command-line access interfaces. To enable users to perform all sky searches based on SED properties of celestial objects, we experimentally used the Hadoop for performing cross-match of one billion photometric records in the JVO Digital Universe.

Shirasaki, Y.; Komiya, Y.; Ohishi, M.; Mizumoto, Y.; Ishihara, Y.; Yanaka, H.; Tsutsumi, J.; Hiyama, T.; Nakamoto, H.; Sakamoto, M.

2011-07-01

403

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

404

Detection of liposomes in portal blood following oral administration  

Microsoft Academic Search

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

N. Das; M. K. Das; B. K. Bachhawat

1984-01-01

405

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

406

Obliteration of portal systemic shunts as therapy for hepatic encephalopathy in patients with non-cirrhotic portal hypertension  

Microsoft Academic Search

Summary  The effects of obliteration of portal systemic shunts (PSS) in 5 patients with non-cirrhotic hepatic encephalopathy is reported.\\u000a All patients had a history of disturbance of consciousness for several years, and examinations revealed large PSS, most of\\u000a which connecting the left gastric vein to the left renal vein. After the obliteration of PSS, portal vein pressure elevated,\\u000a the shunt ratio

Toshio Ito; Nobumasa Ikeda; Akiharu Watanabe; Kunihiko Sue; Takeshi Kakio; Hisashi Mimura; Takao Tsuji

1992-01-01

407

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

408

Health Professionals’ Attitudes Towards Using a Web 2.0 Portal for Child and Adolescent Diabetes Care: Qualitative Study  

PubMed Central

Background The Internet, created and maintained in part by third-party apomediation, has become a dynamic resource for living with a chronic disease. Modern management of type 1 diabetes requires continuous support and problem-based learning, but few pediatric clinics offer Web 2.0 resources to patients as part of routine diabetes care. Objectives To explore pediatric practitioners’ attitudes towards the introduction of a local Web portal for providing young type 1 diabetes patients with interactive pedagogic devices, social networking tools, and locally produced self-care and treatment information. Opportunities and barriers related to the introduction of such systems into clinical practice were sought. Methods Twenty clinicians (seven doctors, nine nurses, two dieticians, and two social welfare officers) from two pediatric diabetes teams participated in the user-centered design of a local Web 2.0 portal. After completion of the design, individual semi-structured interviews were performed and data were analyzed using phenomenological methods. Results The practitioners reported a range of positive attitudes towards the introduction of a local Web 2.0 portal to their clinical practice. Most interviewees were satisfied with how the portal turned out, and a sense of community emerged during the design process and development of the portal’s contents. A complementary role was suggested for the portal within the context of health practice culture, where patients and their parents would be able to learn about the disease before, between, and after scheduled contacts with their health care team. Although some professionals expected that email communication with patients and online patient information would save time during routine care, others emphasized the importance of also maintaining face-to-face communication. Online peer-to-peer communication was regarded as a valuable function; however, most clinicians did not expect that the portal would be used extensively for social networking amongst their patients. There were no major differences in attitudes between different professions or clinics, but some differences appeared in relation to work tasks. Conclusions Experienced clinical practitioners working in diabetes teams exhibited positive attitudes towards a Web 2.0 portal tailored for young patients with type 1 diabetes and their parents. The portal included provision of third-party information, as well as practical and social means of support. The practitioners’ early and active participation provides a possible explanation for these positive attitudes. The findings encourage close collaboration with all user groups when implementing Web 2.0 systems for the care of young patients with chronic diseases, particularly type 1 diabetes. The study also highlights the need for efforts to educate clinical practitioners in the use of Web publishing, social networking, and other Web 2.0 resources. Investigations of attitudes towards implementing similar systems in the care of adults with chronic diseases are warranted. PMID:19403464

Hanberger, Lena; Timpka, Toomas; Nordfeldt, Sam

2009-01-01

409

The Rat Genome Database Pathway Portal  

PubMed Central

The set of interacting molecules collectively referred to as a pathway or network represents a fundamental structural unit, the building block of the larger, highly integrated networks of biological systems. The scientific community's interest in understanding the fine details of how pathways work, communicate with each other and synergize, and how alterations in one or several pathways may converge into a disease phenotype, places heightened demands on pathway data and information providers. To meet such demands, the Rat Genome Database [(RGD) http://rgd.mcw.edu] has adopted a multitiered approach to pathway data acquisition and presentation. Resources and tools are continuously added or expanded to offer more comprehensive pathway data sets as well as enhanced pathway data manipulation, exploration and visualization capabilities. At RGD, users can easily identify genes in pathways, see how pathways relate to each other and visualize pathways in a dynamic and integrated manner. They can access these and other components from several entry points and effortlessly navigate between them and they can download the data of interest. The Pathway Portal resources at RGD are presented, and future directions are discussed. Database URL: http://rgd.mcw.edu PMID:21478484

Petri, Victoria; Shimoyama, Mary; Hayman, G. Thomas; Smith, Jennifer R.; Tutaj, Marek; de Pons, Jeff; Dwinell, Melinda R.; Munzenmaier, Diane H.; Twigger, Simon N.; Jacob, Howard J.

2011-01-01

410

ProPortal: A Database for Prochlorococcus  

DOE Data Explorer

Prochlorococcus is a marine cyanobacterium that numerically dominates the mid-latitude oceans, and is the smallest known oxygenic phototroph. All isolates described thus far can be assigned to either a tightly clustered high-light (HL) adapted clade, or a more divergent low-light (LL) adapted group. They are closely related to, but distinct from, marine Synechococcus. The genomes of 12 strains have been sequenced and they range in size from 1.6 to 2.6 Mbp. They represent diverse lineages, spanning the rRNA diversity (97 to 99.93% similarity) of cultured representatives of this group. Our analyses of these genomes inform our understanding of how adaptation occurs in the oceans along gradients of light, nutrients, and other environmental factors, providing essential context for interpreting rapidly expanding metagenomic datasets. [Copied from http://proportal.mit.edu/project/prochlorococcus/] ProPortal allows users to browse and search genome date for not only Prochlorococcus, but Cyanophage and Synechococcus. Microarray data, environmental cell concentration data, and metagenome information are also available.

Huang, Katherine (Chisholm lab, MIT)

411

A portal factor influences serum calcium homeostasis.  

PubMed Central

In order to evaluate the importance of a portal factor in serum calcium homeostasis, end-to-side portacaval shunts were performed in groups of adult, male Lewis rats either before or after parathyroidectomy. Subsequent changes in serum calcium values were followed. When parathyroidectomy was performed one day or 28 days after a portacaval shunt, hypocalcemic changes occurred soon after. However, in these shunted, parathyroidectomized animals which were maintained on a normal calcium diet the serum calcium concentrations soon began to rise and by three weeks after operationthe rats became normocalcemic. In animals which had a portacaval shunt performed three days after parathyroidectomy, the serum calcium levels again rose and became normal in approximately three weeks. In the shunted, parathyroidectomized animals, both the serum calcium and phosphorus concentrations remained normal as long as the rats were maintained ona normal calcium diet. When a low calcium diet was introduced, marked hypocalcemia occurred and serum parathyroid hormone values were barely detectable, both of which attest to the completeness of parathyroidectomy. These data support the hypothesis that following portacaval shunt, a calcium elevating factor, which is similar in action to parathyroid hormone but is not PTH itself, bypasses the liver and becomes effective in the systemic circulation. It acts to correct the hypocalcemia and hyperphosphatemia of parathyroidectomized rats. The possible role of various known gastrointestinal factors in this process is discussed. PMID:7425692

Lee, C H; Kaplan, E L; Sugimoto, J; Heath, H

1980-01-01

412

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

CORRÊA, Camila de Castro; PAULETO, Adriana Regina Colombo; FERRARI, Deborah Viviane; BERRETIN-FELIX, Giédre

2013-01-01

413

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

414

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

415

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

416

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

417

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

418

A Case Analysis of INFOMED: The Cuban National Health Care Telecommunications Network and Portal  

PubMed Central

Background The Internet and telecommunications technologies contribute to national health care system infrastructures and extend global health care services markets. The Cuban national health care system offers a model to show how a national information portal can contribute to system integration, including research, education, and service delivery as well as international trade in products and services. Objective The objectives of this paper are (1) to present the context of the Cuban national health care system since the revolution in 1959, (2) to identify virtual institutional infrastructures of the system associated with the Cuban National Health Care Telecommunications Network and Portal (INFOMED), and (3) to show how they contribute to Cuban trade in international health care service markets. Methods Qualitative case research methods were used to identify the integrated virtual infrastructure of INFOMED and to show how it reflects socialist ideology. Virtual institutional infrastructures include electronic medical and information services and the structure of national networks linking such services. Results Analysis of INFOMED infrastructures shows integration of health care information, research, and education as well as the interface between Cuban national information networks and the global Internet. System control mechanisms include horizontal integration and coordination through virtual institutions linked through INFOMED, and vertical control through the Ministry of Public Health and the government hierarchy. Telecommunications technology serves as a foundation for a dual market structure differentiating domestic services from international trade. Conclusions INFOMED is a model of interest for integrating health care information, research, education, and services. The virtual infrastructures linked through INFOMED support the diffusion of Cuban health care products and services in global markets. Transferability of this model is contingent upon ideology and interpretation of values such as individual intellectual property and confidentiality of individual health information. Future research should focus on examination of these issues and their consequences for global markets in health care. PMID:16585025

2006-01-01

419

Accessing IceBridge Data Products - The OIB Portal  

NASA Astrophysics Data System (ADS)

NASA's Operation IceBridge mission both collects and makes available airborne remote sensing measurements over the polar regions to bridge the gap between NASA's Ice, Cloud and Land Elevation satellite (ICESat) mission and the upcoming ICESat-2 mission in 2016. The flight paths are carefully chosen areas of scientific interest, and the diverse set of instruments aboard each flight provide a more robust and thorough set of measurements than can satellite-based sensors. Instruments currently in use gather data on ice and snow thickness, bedrock topography, high-resolution photography, and other scientific properties. Shortly after collection, the data are transferred to the National Snow and Ice Data Center (NSIDC) for permanent storage and free, public access. At NSIDC, the data are organized with detailed metadata and made available through several avenues. The primary point of access for IceBridge data is the IceBridge Data Portal, located at http://nsidc.org/icebridge/portal/. This data portal allows users to both quickly find data that they seek or just peruse the available data holdings through the user interface. Ease of use is a top priority in the portal development to allow the user to concentrate on the science behind the data instead of how to navigate the website. Past development of the portal has focused on clarity of data presentation and access to the data itself. Current and planned development will see substantial additions to the filtering options, navigational tools, and visualization capabilities. Metadata are heavily relied upon to drive the data organization and access at NSIDC, particularly in the IceBridge Data Portal. The Portal's interactive maps of the polar regions allow users to search for data geographically. A user may also see how data at a specific location change over time using the Portal's temporal filters. In addition, the IceBridge flights themselves are searchable if a user is looking for data from a specific instrument, season of the year, etc. Tentative plans for future Portal enhancements include detailed subsetting of specific data files, presenting ICESat data for comparison against analogous IceBridge airborne data, a timeline slider to watch data on the map change over time, and more. This presentation will cover current and planned capabilities associated with search, discovery and access of Operation IceBridge data.

Tanner, S.; Oldenburg, J.; Collins, J. A.; Lewis, S.; Schaffer, F.

2013-12-01

420

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

421

Obliterative portal venopathy: a clinical and histopathological review.  

PubMed

Non-cirrhotic portal hypertension (NCPH) is characterized by the elevation of the portal pressure in the absence of cirrhosis. Obliterative portal venopathy (OPV) as a cause of NCPH is being increasingly diagnosed, especially after recent reports of its occurrence in patients with HIV using didanosine. Patients usually present with episodes of variceal hemorrhage and other features of portal hypertension including jaundice, ascites, encephalopathy and hepatopulmonary syndrome. Hepatic synthetic function is typically well preserved and the laboratory evaluation in OPV patients typically reveals only mild nonspecific hematological abnormalities chiefly related to hypersplenism. Its diagnosis remains a challenge and patients are often mistakenly diagnosed as having cirrhosis. Despite the increasing recognition of OPV, its etiology and pathogenesis are still unclear. A number of etiologies have been proposed including genetic predisposition, recurrent bacterial infections, HIV infection and highly active antiretroviral therapy, an altered immune response, hypercoagulability, and exposure to chemicals and certain medications. Histopathological evaluation remains critical in excluding cirrhosis and other causes of portal hypertension, and is the only way of definitively establishing the diagnosis of OPV. Clinicians should have a high index of suspicion for OPV in patients who present with variceal bleeding and splenomegaly and who do not have other features of cirrhosis. The purpose of this review is to summarize the known etiologies for OPV and its associated clinical aspects and correlations, and to also provide ample histophotomicrographs of OPV to aid in the diagnosis. It will also help raise awareness of this entity amongst pathologists and clinicians alike. PMID:23812828

Aggarwal, Sourabh; Fiel, M Isabel; Schiano, Thomas D

2013-10-01

422

Verification of quality parameters for portal images in radiotherapy  

PubMed Central

Background The purpose of the study was to verify different values of quality parameters of portal images in radiotherapy. Materials and methods We investigated image qualities of different field verification systems. Four EPIDs (Siemens OptiVue500aSi®, Siemens BeamView Plus®, Elekta iView® and Varian PortalVision™) were investigated with the PTW EPID QC PHANTOM® and compared with two portal film systems (Kodak X-OMAT® cassette with Kodak X-OMAT V® film and Kodak EC-L Lightweight® cassette with Kodak Portal Localisation ReadyPack® film). Results A comparison of the f50 and f25 values of the modulation transfer functions (MTFs) belonging to each of the systems revealed that the amorphous silicon EPIDs provided a slightly better high contrast resolution than the Kodak Portal Localisation ReadyPack® film with the EC-L Lightweight® cassette. The Kodak X-OMAT V® film gave a poor low contrast resolution: from the existing 27 holes only 9 were detectable. Conclusions On the base of physical characteristics, measured in this work, the authors suggest the use of amorphous-silicon EPIDs producing the best image quality. Parameters of the EPIDs with scanning liquid ionisation chamber (SLIC) were very stable. The disadvantage of older versions of EPIDs like SLIC and VEPID is a poor DICOM implementation, and the modulation transfer function (MTF) values (f50 and f25) are less than that of aSi detectors. PMID:22933938

Pesznyák, Csilla; Polgár, István; Weisz, Csaba; Király, Réka; Zaránd, Pál

2011-01-01

423

Noninvasive evaluation of portal-systemic shunting by glyceryl trinitrate.  

PubMed

Portal-systemic shunting is an important circulatory abnormality in patients with liver cirrhosis. Glyceryl trinitrate (GTN) that is normally subject to first pass elimination, may exhibit higher bioavailability in these patients. This study compares the pharmacodynamic effects of GTN after peroral and sublingual administration for noninvasive assessment of shunting. Six control subjects and 15 patients with cirrhosis were studied after oral and sublingual application of 0.5 mg of GTN. Liver cirrhosis was complicated by portal hypertension in 7 of the patients and 4 patients had surgically implanted portocaval anastomosis. Digital plethysmography, which is highly sensitive and is essentially noninvasive in nature, was used to assess and compare the pharmacodynamic effects of GTN. The following values of the ratio of areas under the pharmacodynamic effects/time curve were obtained: 0.08 +/- 0.06 in healthy subjects, 0.52 +/- 0.21 in patients with uncomplicated cirrhosis, 0.99 +/- 0.34 in patients with portal hypertension and 1.24 +/- 0.43 in patients with portal-systemic shunts. We conclude that increased bioavailability of GTN reflects portal-systemic shunting and might be used providing that the pharmacodynamic data reflect both pharmacokinetic variability and the pharmacokinetic-pharmacodynamic interrelations. PMID:12449441

Slanar, O; Aubrecht, J; Perlík, F

2002-01-01

424

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

425

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

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

2013-01-01

426

[Portal hypertension associated with alcoholic liver damage (author's transl)].  

PubMed

Alcoholic liver damage is associated with the development of portal hypertension quite early, as a result of increasing fibrosis. By means of laparoscopic transhepatic manometry (LTM) in the branches of the portal and hepatic veins, we measured the pressure levels in 15 patients with early and transitional-stage alcoholic injury extending to cirrhosis of the liver, and compared them with histological and laboratory investigation criteria. We discovered that parenchymal damage with portal and centrolobular fibrosis already gave rise to some portal hypertension which, compared to a group showing histological changes of remodelling or cirrhosis, constantly increased. In completely developed alcoholic cirrhosis (n = 41), the pressure levels reached a peak. Despite this fact, bleeding from oesophageal varices cannot be predicted. Over the period of observation of 33 months, 4 deaths occurred (portal vein pressure between 4.5 to 5 kPa = 34.0 to 38.8 mm Hg), and three variceal bleedings we were able to manage were seen (pressures between 3.6 to 4.3 kPa = 27.0 and 32.0 mm Hg). Compared to hepatitic cirrhosis the prognosis was slightly more favourable. PMID:93237

Mörl, M; Schwalbach, G; Wannagat, L; Bavastro, P

1979-11-01

427

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

428

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

429

Landing Site Selection and Surface Traverse Planning using the Lunar Mapping & Modeling Portal  

NASA Astrophysics Data System (ADS)

Introduction: The Lunar Mapping and Modeling Portal (LMMP), is a web-based Portal and a suite of interactive visualization and analysis tools for users to access mapped lunar data products (including image mosaics, digital elevation models, etc.) from past and current lunar missions (e.g., Lunar Reconnaissance Orbiter, Apollo, etc.), and to perform in-depth analyses to support lunar surface mission planning and system design for future lunar exploration and science missions. It has been widely used by many scientists mission planners, as well as educators and public outreach (e.g., Google Lunar XPRICE teams, RESOLVE project, museums etc.) This year, LMMP was used by the Lunar and Planetary Institute (LPI)'s Lunar Exploration internship program to perform lighting analysis and local hazard assessments, such as, slope, surface roughness and crater/boulder distribution to research landing sites and surface pathfinding and traversal. Our talk will include an overview of LMMP, a demonstration of the tools as well as a summary of the LPI Lunar Exploration summer interns' experience in using those tools.

Law, E.; Chang, G.; Bui, B.; Sadaqathullah, S.; Kim, R.; Dodge, K.; Malhotra, S.

2013-12-01

430

Portal Vein Stenting to Treat Portal Vein Stenosis in a Patient With Malignant Tumor and Gastrointestinal Bleeding  

PubMed Central

This report describes the successful use of portal venous stent placement for a patient with recurrent melena secondary to jejunal varices that developed after subtotal stomach preserved pancreatoduodenectomy (SSPPD). A 67-year-old man was admitted to our hospital with tarry stool and severe anemia at 2 years after SSPPD for carcinoma of the head of the pancreas. Abdominal computed tomography examination showed severe stenosis of the extrahepatic portal vein caused by local recurrence and showed an intensely enhanced jejunal wall at the choledochojejunostomy. Gastrointestinal bleeding scintigraphy also revealed active bleeding near the choledochojejunostomy. Based on these findings, jejunal varices resulting from portal vein stenosis were suspected as the cause of the melena. Portal vein stenting and balloon dilation was performed via the ileocecal vein after laparotomy. Coiling of the jejunal varices and sclerotherapy of the dilate postgastric vein with 5% ethanolamine oleate with iopamidol was performed. After portal stent placement, the patient was able to lead a normal life without gastrointestinal hemorrhage. However, he died 7 months later due to liver metastasis. PMID:24444277

Sakurai, Katsunobu; Amano, Ryosuke; Yamamoto, Akira; Nishida, Norifumi; Matsutani, Shinya; Hirata, Keiichiro; Kimura, Kenjiro; Muguruma, Kazuya; Toyokawa, Takahiro; Kubo, Naoshi; Tanaka, Hiroaki; Yashiro, Masakazu; Ohira, Masaichi; Hirakawa, Kosei

2014-01-01

431

Clinicopathological Features and Treatment of Ectopic Varices with Portal Hypertension  

PubMed Central

Bleeding from ectopic varices, which is rare in patients with portal hypertension, is generally massive and life-threatening. Forty-three patients were hospitalized in our ward for gastrointestinal bleeding from ectopic varices. The frequency of ectopic varices was 43/1218 (3.5%) among portal hypertensive patients in our ward. The locations of the ectopic varices were rectal in thirty-two, duodenal in three, intestinal in two, vesical in three, stomal in one, and colonic in two patients. Endoscopic or interventional radiologic treatment was performed successfully for ectopic varices. Hemorrhage from ectopic varices should be kept in mind in patients with portal hypertension presenting with lower gastrointestinal bleeding. PMID:21994879

Sato, Takahiro; Akaike, Jun; Toyota, Jouji; Karino, Yoshiyasu; Ohmura, Takumi

2011-01-01

432

Portals 4 network API definition and performance measurement  

SciTech Connect

Portals is a low-level network programming interface for distributed memory massively parallel computing systems designed by Sandia, UNM, and Intel. Portals has been designed to provide high message rates and to provide the flexibility to support a variety of higher-level communication paradigms. This project developed and analyzed an implementation of Portals using shared memory in order to measure and understand the impact of using general-purpose compute cores to handle network protocol processing functions. The goal of this study was to evaluate an approach to high-performance networking software design and hardware support that would enable important DOE modeling and simulation applications to perform well and to provide valuable input to Intel so they can make informed decisions about future network software and hardware products that impact DOE applications.

Brightwell, R. B.

2012-03-01

433

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

434

Liver transplantation complicated by misplaced TIPS in the portal vein.  

PubMed Central

OBJECTIVE: The purpose of this study was to determine the incidence and complications related to transjugular intrahepatic portosystemic shunt (TIPS) stents found in the portal vein at the time of an orthotopic liver transplantation. BACKGROUND: Transjugular intrahepatic portosystemic shunts are frequently used in patients with end-stage liver disease as a bridge to liver transplantation. The incidence of finding the metal stent outside of the liver parenchyma at the time of transplantation is reported as high as 30%. Most cases that have been detailed involve stents misplaced in the vena cava with various outcomes. Almost no data are available regarding stents misplaced into the portal vein. METHODS AND RESULTS: We report our experience with four patients with whom a TIPS stent was found misplaced in the portal vein at the time of liver transplantation, including one patient with a stent extending into the superior mesenteric vein. This patient required extensive venous reconstruction using a retropancreatic "pant" donor-iliac vein graft. The three other patients were transplanted without the need for extensive venous reconstruction. There was no significant difference in operative times for this group of patients, but there was a significant increase in the requirement for blood transfusion. In a follow-up period ranging from 6 months to 2 years, all patients remained alive and had normal portal venous flow and functioning allografts. Most misplaced stents were placed in patients with small cirrhotic livers and by radiologists with minimal experience with the procedure. CONCLUSIONS: Misplaced TIPS in the portal vein before liver transplantation is a more frequent complication than previously reported; however, it does not represent major technical difficulty if a clamp can be placed proximally on the portal vein. In the case of a stent extending below the spleno-mesenteric confluence, interposition grafts such as a donor-iliac vein graft are necessary for venous reconstruction. The experience of the radiologist is critical to prevent this complication. Images Figure 1. Figure 2. PMID:9527068

Clavien, P A; Selzner, M; Tuttle-Newhall, J E; Harland, R C; Suhocki, P

1998-01-01

435

New approaches in the pharmacologic treatment of portal hypertension.  

PubMed

To alleviate the risk of variceal bleeding, the portal pressure gradient--usually evaluated as the hepatic venous pressure gradient (HVPG)--must be reduced to < or = 12 mmHg. Although beta-blocking agents are accepted therapy for preventing first or subsequent bleeding episodes, propranolol therapy decreases final HVPG to < or = 12 mmHg in only 12% of patients, while only 24% of patients have a > or = 20% reduction in HVPG and nearly 40% show no reduction in HVPG. This has stimulated research on alternative or additional treatments. Nitrates such as isosorbide dinitrate reduce portal pressure by decreasing resistance to portal and collateral blood flow and by promoting reflex splanchnic vasoconstriction. However, while nitrates are effective in the acute situation, tolerance leading to refractoriness develops over the long term unless they are combined with diuretics or other agents in the treatment of portal hypertension. Propranolol and isosorbide-5-mononitrate combined cause a substantially greater reduction in HVPG than monotherapy with either drug in both acute and long-term use. Presumably concomitant isosorbide-5-mononitrate administration opposes the increase in portal resistance induced by propranolol. Spironolactone, which has been shown to lower HVPG in patients with cirrhosis, produces a reduction in plasma volume that attenuates the increased cardiac output associated with cirrhosis and triggers vasoactive mechanisms that decrease splanchnic blood flow. Potentially, spironolactone may maintain and enhance the decrease in portal pressure achieved by nitrates or propranolol. Triple therapy with a beta-blocker, a nitrate and spironolactone may be feasible.(ABSTRACT TRUNCATED AT 250 WORDS) PMID:8098342

Bosch, J; García-Pagán, J C; Feu, F; Luca, A; Fernández, M; Pizcueta, P; Rodés, J

1993-01-01

436

The GFDL Data Portal: a Doorway to Sharing Model Outputs  

NASA Astrophysics Data System (ADS)

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 Live Access Server (LAS). LAS is a visualization and analysis tool which allows: presentation of a multitude of variables in an orderly way by easily defining and customizing arbitrary hierarchies; location of datasets and variables of interest from among thousands offered without navigating the complete dataset hierarchy; easy intercomparison of model results (http://ferret.pmel.noaa.gov/LAS). The OPeNDAP framework (http://www.opendap.org) will also be a key component in the GFDL data portal. This framework provides local data access to remote data, regardless of the remote storage format, and will allow for intercomparison of model results between groups of users. The Geophysical Fluid Dynamics Laboratory (GFDL) is a partner in the NASA-funded development of the Earth Systems Modeling Framework (ESMF) collaboration (http://www.esmf.ucar.edu). The ESMF is an effort to greatly improve coordination in the advancement of climate models through the development of a community framework to couple model components (http://www.esmf.ucar.edu). Working with the Global Organization for Earth System Science Portals (GO-ESSP, http://go-essp.gfdl.noaa.gov), the goal is to develop a software infrastructure using agreed-upon standards to provide distributed access to observed and simulated data from climate and weather communities. In this presentation we will discuss the GFDL data portal, the web site(s) through which many model outputs from GFDL are accessible, and its underlying standards and tools.

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

2004-12-01

437

CO2 wedged hepatic venography in the evaluation of portal hypertension  

PubMed Central

BACKGROUND/AIMS/METHODS—During hepatic vein catheterisation, in addition to measurement of hepatic venous pressure gradient (HVPG), iodine wedged retrograde portography can be easily obtained. However, it rarely allows correct visualisation of the portal vein. Recently, CO2 has been suggested to allow better angiographic demonstration of the portal vein than iodine. In this study we investigated the efficacy of CO2 compared with iodinated contrast medium for portal vein imaging and its role in the evaluation of portal hypertension in a series of 100 patients undergoing hepatic vein catheterisation, 71 of whom had liver cirrhosis.?RESULTS—In the overall series, CO2 venography was markedly superior to iodine, allowing correct visualisation of the different segments of the portal venous system. In addition, CO2, but not iodine, visualised portal-systemic collaterals in 34 patients. In cirrhosis, non-visualisation of the portal vein on CO2 venography occurred in 11 cases; four had portal vein thrombosis and five had communications between different hepatic veins. Among non-cirrhotics, lack of portal vein visualisation had a 90% sensitivity, 88% specificity, 94% negative predictive value, and 83% positive predictive value in the diagnosis of pre-sinusoidal portal hypertension.?CONCLUSIONS—Visualisation of the venous portal system by CO2 venography is markedly superior to iodine. The use of CO2 wedged portography is a useful and safe complementary procedure during hepatic vein catheterisation which may help to detect portal thrombosis. Also, lack of demonstration of the portal vein in non-cirrhotic patients strongly suggests the presence of pre-sinusoidal portal hypertension.???Keywords: portal thrombosis; liver cirrhosis; idiopathic portal hypertension; splanchnic haemodynamics PMID:10807900

Debernardi-Venon, W; Bandi, J; Garcia-Pagan, J; Moitinho, E; Andreu, V; Real, M; Escorsell, A; Montanya, X; Bosch, J

2000-01-01

438

Unusual case of digestive hemorrhage: Celiac axis-portal vein arteriovenous fistula  

PubMed Central

A case of intractable upper gastrointestinal-hemorrhage was reported in a patient with portal hypertension caused by an arterioportal fistula (APF), namely, celiac axis-portal vein arteriovenous fistula. Portal hypertension caused by extrahepatic-APFs is extremely rare. Trauma, malignancy, and hereditary causes are the common etiology of APFs; but were absent in our patient. Our patient represents an unusual case of unexplained APF who presented with portal hypertension and was successfully managed through endovascular aortic repair. PMID:25632214

Liu, Yi-Ren; Huang, Bin; Yuan, Ding; Wu, Zhou-Peng; Zhao, Ji-Chun

2015-01-01

439

Unusual cause for abdominal pain in cirrhosis : thrombosed intrahepatic portal vein aneurysms.  

PubMed

Portal venous system aneurysm is a rare condition with very few reported cases in English literature. With the increasing availability of advanced imaging modalities like Doppler ultrasound, computed tomography and magnetic resonance imaging, portal venous system aneurysms are being increasingly reported. Here, we report a rare case of multiple intrahepatic portal venous system aneurysms complicated by thrombosis in a young patient with chronic liver disease and portal hypertension. PMID:25478385

Aiyappan, Senthil Kumar; Ranga, Upasana; Veeraiyan, Saveetha

2014-10-01

440

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

441

Grayscale and pulsed doppler characteristics of non-cirrhotic portal fibrosis: a preliminary report  

Microsoft Academic Search

AIM: Non-cirrhotic portal fibrosis is a common cause of portal hypertension in India. Inspite of this there is no published data delineating the imaging findings in patients with this disease. The aim of this study was to evaluate Grayscale and pulsed Doppler findings of the portal venous system in non-cirrhotic portal fibrosis.MATERIALS AND METHODS: Grayscale and Doppler sonography was performed

R. Sinha

1999-01-01

442

Pulmonary hypertension associated with non-cirrhotic portal hypertension in systemic lupus erythematosus  

Microsoft Academic Search

A case of non-cirrhotic portal hypertension in a patient with systemic lupus erythematosus, the first of our knowledge, is described. Severe pulmonary hypertension was associated with the portal hypertension and with markers of active auto-immunity. Pulmonary hypertension has not previously been associated with non-cirrhotic portal hypertension. The coexistence of vasculopathy of the portal and pulmonary vascular beds in this patient

D. Woolf; M. D. Voigt; K. Jaskiewicz; A. A. Kalla

1994-01-01

443

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

444

Unusual case of digestive hemorrhage: Celiac axis-portal vein arteriovenous fistula.  

PubMed

A case of intractable upper gastrointestinal-hemorrhage was reported in a patient with portal hypertension caused by an arterioportal fistula (APF), namely, celiac axis-portal vein arteriovenous fistula. Portal hypertension caused by extrahepatic-APFs is extremely rare. Trauma, malignancy, and hereditary causes are the common etiology of APFs; but were absent in our patient. Our patient represents an unusual case of unexplained APF who presented with portal hypertension and was successfully managed through endovascular aortic repair. PMID:25632214

Liu, Yi-Ren; Huang, Bin; Yuan, Ding; Wu, Zhou-Peng; Zhao, Ji-Chun

2015-01-28

445

Interobserver Variability in Target Definition for Hepatocellular Carcinoma With and Without Portal Vein Thrombus: Radiation Therapy Oncology Group Consensus Guidelines  

PubMed Central

Purpose Defining hepatocellular carcinoma (HCC) gross tumor volume (GTV) requires multimodal imaging, acquired in different perfusion phases. The purposes of this study were to evaluate the variability in contouring and to establish guidelines and educational recommendations for reproducible HCC contouring for treatment planning. Methods and Materials Anonymous, multiphasic planning computed tomography scans obtained from 3 patients with HCC were identified and distributed to a panel of 11 gastrointestinal radiation oncologists. Panelists were asked the number of HCC cases they treated in the past year. Case 1 had no vascular involvement, case 2 had extensive portal vein involvement, and case 3 had minor branched portal vein involvement. The agreement between the contoured total GTVs (primary + vascular GTV) was assessed using the generalized kappa statistic. Agreement interpretation was evaluated using Landis and Koch’s interpretation of strength of agreement. The S95 contour, defined using the simultaneous truth and performance level estimation (STAPLE) algorithm consensus at the 95% confidence level, was created for each case. Results Of the 11 panelists, 3 had treated >25 cases in the past year, 2 had treated 10 to 25 cases, 2 had treated 5 to 10 cases, 2 had treated 1 to 5 cases, 1 had treated 0 cases, and 1 did not respond. Near perfect agreement was seen for case 1, and substantial agreement was seen for cases 2 and 3. For case 2, there was significant heterogeneity in the volume identified as tumor thrombus (range 0.58–40.45 cc). For case 3, 2 panelists did not include the branched portal vein thrombus, and 7 panelists contoured thrombus separately from the primary tumor, also showing significant heterogeneity in volume of tumor thrombus (range 4.52–34.27 cc). Conclusions In a group of experts, excellent agreement was seen in contouring total GTV. Heterogeneity exists in the definition of portal vein thrombus that may impact treatment planning, especially if differential dosing is contemplated. Guidelines for HCC GTV contouring are recommended. PMID:24969794

Hong, Theodore S.; Bosch, Walter R.; Krishnan, Sunil; Kim, Tae K.; Mamon, Harvey J.; Shyn, Paul; Ben-Josef, Edgar; Seong, Jinsil; Haddock, Michael G.; Cheng, Jason C.; Feng, Mary U.; Stephans, Kevin L.; Roberge, David; Crane, Christopher; Dawson, Laura A.

2014-01-01

446

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

447

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

448

Portal anatomic variants relevant to transjugular intrahepatic portosystemic shunt.  

PubMed

Transjugular intrahepatic portosystemic shunt (TIPS) creation is an accepted treatment for portal hypertension. TIPS creation remains a challenging procedure because it involves the successful passage of a needle from a point of origin (hepatic vein) to a target point (portal vein) through the liver substance. An understanding of the anatomy of these two vascular beds facilitates overcoming the challenge of the spatial relationship between these two points. In this article the authors review the vascular and parenchymal anatomic variations, both congenital and acquired that impact the success of TIPS creation. PMID:19527845

Saad, Nael; Darcy, Michael; Saad, Wael

2008-12-01

449

The highly accurate anteriolateral portal for injecting the knee  

Microsoft Academic Search

Background  The extended knee lateral midpatellar portal for intraarticular injection of the knee is accurate but is not practical for\\u000a all patients. We hypothesized that a modified anteriolateral portal where the synovial membrane of the medial femoral condyle\\u000a is the target would be highly accurate and effective for intraarticular injection of the knee.\\u000a \\u000a \\u000a \\u000a \\u000a Methods  83 subjects with non-effusive osteoarthritis of the knee

Colbert E Chavez-Chiang; Wilmer L Sibbitt Jr; Philip A Band; Natalia R Chavez-Chiang; Suzanne L DeLea; Arthur D Bankhurst

2011-01-01

450

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

451

78 FR 6849 - Agency Information Collection (eBenefits Portal) Activity under OMB Review  

Federal Register 2010, 2011, 2012, 2013, 2014

...Agency Information Collection (eBenefits Portal) Activity under OMB Review AGENCY: Office...SUPPLEMENTARY INFORMATION: Title: eBenefits Portal. OMB Control Number: 2900-0737. Type...collection. Abstract: The eBenefits portal, a joint project between the VA and...

2013-01-31

452

Staging of portal hypertension and portosystemic shunts using dynamic nuclear medicine investigations  

Microsoft Academic Search

lation time between right heart and liver (RHLT). LTT for each lobe was used to evaluate the early portal hypertension. RHLT is useful in cirrhosis to detect liver areas missing portal inflow. We calculated the classical per-rectal portal shunt index (PRSI) at PRPS and the hepatic perfusion index (HPI) at LAS. RESULTS: The normal LTT value was 24 ± 1

Mircea Dragoteanu; Ioan A Balea; Liliana A Dina; Cecilia D Piglesan; Ioana Grigorescu; Stefan Tamas; Sabin O Cotul

2008-01-01

453

Renal and intrarenal blood flow in non-cirrhotic portal hypertension  

Microsoft Academic Search

The effect of portal hypertension or the consequent portal circulatory changes on renal haemodynamics was studied using the 133xenon washout technique. Renal blood flow was reduced in nine of 11 patients with non-cirrhotic portal hypertension and this was accompanied by a redistribution of intrarenal blood flow, the distribution to and flow rate through the outer cortex being reduced while juxtamedullary

M. C. Kew; Carol Limbrick; R. R. Varma; Sheila Sherlock

1972-01-01

454

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

455

Towards a framework of the performance evaluation of SMEs' industry portals  

Microsoft Academic Search

Purpose – With the fast growth of the internet, the development of industry portals for SMEs is becoming an increasingly important issue of economic growth. However, designing and developing efficient portals is not easy, and how to evaluate industry portals' performance has not yet been convincingly demonstrated. To address this gap, this paper aims to propose a framework. Design\\/methodology\\/approach –

Tzu-chuan Chou; Li-ling Hsu; Ying-jung Yeh; Chin-tsang Ho

2005-01-01

456

Effects of portal vein arterialization on liver regeneration after partial hepatectomy in the rat  

Microsoft Academic Search

Although portal venous supply is considered essential to preserve hepatic integrity, in this study, effects of portal arterialization on liver regeneration were evaluated in a rat model of partial hepatectomy (PH). Ninety-six Lewis rats were randomly assigned to four groups of 24 rats each: PH only (group 1), PH with either venous or arterialized portal supply (groups 2 and 3,

Ye-Dong Fan; Marleen Praet; Jacques Van Huysse; Bart Lelie; Bernard De Hemptinne

2002-01-01

457

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

458

Effects of portal infusions of methionine on plasma concentrations and estimated hepatic balances of metabolites  

E-print Network

Effects of portal infusions of methionine on plasma concentrations and estimated hepatic balances, 63122 Saint-Genès-Champanelle, France The effects of portal infusions of methionine (Met) were studied al, 1988). After a control measurement on day 23, Met was infused in the portal vein for 7 h after

Paris-Sud XI, Université de

459

The Gateway Computational Web Portal: Developing Web Services for High Performance Computing  

Microsoft Academic Search

We describe the Gateway computational web portal, whichfollows a traditional three-tiered approach to portal design. Gatewayprovides a simplified, ubiquitously available user interface to high performancecomputing and related resources. This approach, while successfulfor straightforward applications, has limitations that make it difficultto support loosely federated, interoperable web portal systems. We examinethe emerging standards in the so-called web services approach to...

Marlon E. Pierce; Choon-han Youn; Geoffrey Fox

2002-01-01

460

Portals in the agro industry Position paper KLICT HR175\\/3  

Microsoft Academic Search

Portals are virtual environments for electronic markets and communities of interest and practice. In the past few years, many electronic markets and portals were started with varying degrees of success and failure. In 2002, we investigated a recent initiative of key players (RABO bank, LTO-Nederland, Gezondheidsdienst voor Dieren, and others) in the Dutch Agro industry: the Agro-portal. IT innovations -such

M. T. Smits; P. M. A. Ribbers; Womin Lin

461

Developmental mechanism of splenomegaly and portal hypertension in non-cirrhotic peri-portal fibrosis with splenomegaly (so-called Banti’s syndrome)  

Microsoft Academic Search

Summary  The results of authors’ studies on the mechanisms of development of splenomegaly and portal hypertension in non-cirrhotic\\u000a peri-portal fibrosis with splenomegaly (so-called Banti’s syndrome) were described in this report. The authors are of the\\u000a opinion that, in this disorder, typical splenomegaly with hyperplasia of pulp cord and of sinus can be developed by the intervention\\u000a of high portal pressure into

Toshio Sato; Kenji Koyama; Hidemi Yamauchi

1973-01-01

462

Automated extraction of pelvic features in portal and simulation images  

Microsoft Academic Search

A new approach, a pyramid template matching as guided by a snake, is developed for the extraction of pelvic features in both portal and simulation images. Initially, the treatment field edge was extracted using a Canny edge detector. A template modeled using a polynomial function for the typical pelvic structures was used as the initial approximation for the anteroposterior (AP)

Fang-Fang Yin; Kaiwen Nie; Lulin Chen; Chang W. Chen

1996-01-01

463

The RCSB PDB information portal for structural genomics  

Microsoft Academic Search

The RCSB Protein Data Bank (PDB) offers online tools, summary reports and target information related to the worldwide structural genomics initia- tives from its portal at http:\\/\\/sg.pdb.org. There are currently three components to this site: Structural 15 Genomics Initiatives contains information and links on each structural genomics site, including progress reports, target lists, target status, targets in the PDB and

Andrei Kouranov; Lei Xie; Joanna De La Cruz; Li Chen; John D. Westbrook; Philip E. Bourne; Helen M. Berman

2006-01-01

464

Interactive Intranet Portal for effective Management in Tertiary Institution  

Microsoft Academic Search

Interactive Intranet Portal for effective management in Tertiary Institution is an enhanced and interactive method of managing and processing key issues in Tertiary Institution, Problems of result processing, tuition fee payment, library resources management are analyzed in this work. An interface was generated to handle this problem; the software is an interactive one. Several modules are involved in the paper,

James Agajo Akpado Kenneth Idogho O Philipa

2011-01-01

465

22. Detail view of sign suspended from portal strut (this ...  

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

22. Detail view of sign suspended from portal strut (this sign was located at the same place at both ends of Moody Bridge). Bottom: General elevation view to southeast showing northern abutment with solid rock foundation. - Moody Bridge, Spanning South Fork Eel River, Garberville, Humboldt County, CA

466

The Collaborative Information Portal and NASA's Mars Rover Mission  

Microsoft Academic Search

NASA Ames Research Center and the Jet Propulsion Laboratory jointly developed the collaborative information portal for NASA's Mars exploration rover mission. Mission managers, engineers, scientists, and researchers used this Internet-based enterprise software application to view current staffing and event schedules, download data and image files generated by the rovers, send and receive broadcast messages, and get accurate times in various

Ronald Mak; Joan D. Walton

2005-01-01

467

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

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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

469

Tunnel 5, detail of the east portal showing how it ...  

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

Tunnel 5, detail of the east portal showing how it is keeping the east end from collapsing. The view is looking up at Milepost 23.15 - Camas Prairie Railroad, Second Subdivision, From Spalding in Nez Perce County, through Lewis County, to Grangeville in Idaho County, Spalding, Nez Perce County, ID

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13. VIEW OF RAILROAD EXHIBIT AT EL PORTAL. SHAY LOCOMOTIVE ...  

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

13. VIEW OF RAILROAD EXHIBIT AT EL PORTAL. SHAY LOCOMOTIVE IS FROM THE HETCH HETCHY RAILROAD. CABOOSE IS FROM THE YOSEMITE VALLEY RAILROAD. FOREST ROAD IN FOREGROUND IS THE ALIGNMENT OF THE YOSEMITE VALLEY RAILROAD. LOOKING W. GIS: N-37 40 27.0 / W-119 47 10.5 - Yosemite National Park Roads & Bridges, Yosemite Village, Mariposa County, CA

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B & P Tunnel east portal emerging out from under ...  

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

B & P Tunnel east portal emerging out from under North Avenue Bridge with Howard Street Arch Bridge in foreground. Baltimore, Baltimore City, MD. Sec. 1201, MP 96.00. - Northeast Railroad Corridor, Amtrak route between District of Columbia/Maryland state line & Maryland/Delaware state line, Baltimore, Independent City, MD

472

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

473

Using heterogeneous components to construct online library portals  

Microsoft Academic Search

History shows that libraries have always functioned as physical portals to stored information. In the past, the physical library has consisted of reference and subject specific areas, card catalogs, and book stacks, all available during operating hours and confined to the library’s physical space within a building or room. However, with the explosive development of the Internet and the implementation

Andrew C. White

2002-01-01

474

Semantic Social Network Portal for Collaborative Online Communities  

ERIC Educational Resources Information Center

Purpose: The motivation for this investigation is to apply social networking features to a semantic network portal, which supports the efforts in enterprise training units to up-skill the employee in the company