WorldWideScience

Sample records for blackberries electronic resource

  1. Genetic diversity among some blackberry cultivars and their ...

    African Journals Online (AJOL)

    STORAGESEVER

    2009-10-05

    Oct 5, 2009 ... Key words: Blackberry, Boysenberry, raspberry, genetic diversity, AFLP markers. INTRODUCTION. Blackberries are fruiting-bearing species of genus Rubus subgenus Rubus of Rosaceae family (Clark et al., 2007). Germplasm Resources Information Network describes 13 subgenera for the genus Rubus ...

  2. ELECTRONIC HUMAN RESOURCE MANAGEMENT

    OpenAIRE

    Dr. M. Panneerselvam

    2017-01-01

    Electronic Human Resource Management is an essence the revolution of human resource functions to management and employees. These functions are typically used via intranet and web technology. This helps the organization to improve their standards where they can able to review and forward. All those documents can be viewed within a fraction of second with help of client and server links. The phenomenon of E- HRM deserves closer and more fundamental roots to HR activity. The E-HRM develops and b...

  3. BlackBerry For Dummies

    CERN Document Server

    Kao, Robert

    2010-01-01

    Get the most juice out of your BlackBerry handheld!. Feature-rich and complex, the BlackBerry is the number one smartphone in the corporate world is among the most popular handhelds for business users. This new and updated edition includes all the latest and greatest information on new and current BlackBerry mobile devices. Covering a range of valuable how-to topics, this helpful guide explores the BlackBerry's most useful features, techniques for getting the most out of your BlackBerry, and practical information about power usage.: Covers all aspects of the number one smartphone in the corpor

  4. Electronic Resource Management and Design

    Science.gov (United States)

    Abrams, Kimberly R.

    2015-01-01

    We have now reached a tipping point at which electronic resources comprise more than half of academic library budgets. Because of the increasing work associated with the ever-increasing number of e-resources, there is a trend to distribute work throughout the library even in the presence of an electronic resources department. In 2013, the author…

  5. Developing BlackBerry Tablet Applications with Flex 45

    CERN Document Server

    Tretola, Rich

    2011-01-01

    Ready to put your ActionScript 3 skills to work on mobile apps? This hands-on book walks you through the process of creating an Adobe AIR application for Blackberry Tablets from start to finish, using the Flex 4.5 framework. Move quickly from a basic Hello World application to complex interactions with Blackberry APIs, and get complete code examples for working with tablet components-including the accelerometer, GPS unit, camera, file system, and multitouch screen. This is an ideal resource no matter how much Flex experience you have. Use Flash Builder 4.5 to create and debug a Flex Mobile pr

  6. Synthesis of Silver and Gold Nanoparticles Using Antioxidants from Blackberry, Blueberry, Pomegranate, and Turmeric Extracts

    Science.gov (United States)

    Greener synthesis of Ag and Au nanoparticles is described using antioxidants from blackberry, blueberry, pomegranate, and turmeric extracts. The synthesized particles were characterized using X-ray diffraction (XRD), transmission electron microscopy (TEM), high resolution TEM (HR...

  7. Managing electronic resources a LITA guide

    CERN Document Server

    Weir, Ryan O

    2012-01-01

    Informative, useful, current, Managing Electronic Resources: A LITA Guide shows how to successfully manage time, resources, and relationships with vendors and staff to ensure personal, professional, and institutional success.

  8. Implementing CORAL: An Electronic Resource Management System

    Science.gov (United States)

    Whitfield, Sharon

    2011-01-01

    A 2010 electronic resource management survey conducted by Maria Collins of North Carolina State University and Jill E. Grogg of University of Alabama Libraries found that the top six electronic resources management priorities included workflow management, communications management, license management, statistics management, administrative…

  9. Electronic Resources Management Project Presentation 2012

    KAUST Repository

    Ramli, Rindra M.

    2012-11-05

    This presentation describes the electronic resources management project undertaken by the KAUST library. The objectives of this project is to migrate information from MS Sharepoint to Millennium ERM module. One of the advantages of this migration is to consolidate all electronic resources into a single and centralized location. This would allow for better information sharing among library staff.

  10. BlackBerry for Work Productivity for Professionals

    CERN Document Server

    Mittal, K

    2010-01-01

    The BlackBerry is cool, and the BlackBerry is fun, but the BlackBerry also means serious business. For those of you who bought your BlackBerry to help get your life organized and free yourself from the ball-and-chain of desktop computing, BlackBerry at Work: Productivity for Professionals is the book to show you how. There are plenty of general-purpose BlackBerry guides, but this book shows you how to complete all the traditional smartphone tasks, like to-dos, calendars, and email, and become even more efficient and productive. You'll learn mechanisms for developing effective workflows specifi

  11. Electronic Resources Management System: Recommendation Report 2017

    KAUST Repository

    Ramli, Rindra M.

    2017-05-01

    This recommendation report provides an overview of the selection process for the new Electronic Resources Management System. The library has decided to move away from Innovative Interfaces Millennium ERM module. The library reviewed 3 system as potential replacements namely: Proquest 360 Resource Manager, Ex Libris Alma and Open Source CORAL ERMS. After comparing and trialling the systems, it was decided to go for Proquest 360 Resource Manager.

  12. A new, widespread emaravirus discovered in blackberry.

    Science.gov (United States)

    Hassan, Mohamed; Di Bello, Patrick L; Keller, Karen E; Martin, Robert R; Sabanadzovic, Sead; Tzanetakis, Ioannis E

    2017-05-02

    A new virus was identified in blackberry plants exhibiting leaf mottling, chlorotic ringspots and curved midribs, symptoms associated with blackberry yellow vein disease (BYVD). The genome of the new virus, provisionally named blackberry leaf mottle-associated virus (BLMaV), was characterized and phylogenetic analysis revealed its close relationship to recognized members of the genus Emaravirus. BLMaV was transmitted by a yet to be described eriophyid mite species, further reinforcing its placement in the genus. Detection protocols were developed and used to determine the presence of the virus in plants collected from several areas in the U.S.A. The incidence of BLMaV was greater than 40% in BYVD-affected material. Copyright © 2017 Elsevier B.V. All rights reserved.

  13. CHALLENGES OF ELECTRONIC INFORMATION RESOURCES IN ...

    African Journals Online (AJOL)

    This paper discusses the role of policy for proper and efficient library services in the electronic era. It points out ... New approaches in acquisition, accessing, selection, preservation and choices on whether to operate digital, or combine traditional print and digital resources in the library have to be worked out and adopted.

  14. 2015 Utilization of Electronic Information Resources in Ramat

    African Journals Online (AJOL)

    electronic resources, electronic books, electronic learning, electronic journals, as well as electronic archive among others is intensely powerful and has permeated all segments and sectors of the society. Electronic information resources (EIRS) as reported by Meitz (2004), are "Library materials produced in electronic format.

  15. Lead in wild blackberries from suburban roadsides

    Energy Technology Data Exchange (ETDEWEB)

    Farmer, J.G.

    1979-01-01

    A mean lead content of 0.79 mg kg/sup -1/ was found for wild blackberries from roadside hedgerows in a suburban area of Glasgow. This represents a five-fold enhancement in lead content relative to blackberries from non-roadside environments and can be attributed to the emission of lead-containing compounds from car exhaust. Washing typically removed less than or equal to 0.1 mg kg/sup -1/. However, M.A.F.F. (1975) recommended limits for lead in fresh food (1 mg kg/sup -1/) and canned fruits and preserves (2 mg kg/sup -1/) were not, in general, exceeded.

  16. Susceptibility of blackberry flowers to freezing temperatures

    Science.gov (United States)

    Injury of tight buds, open flowers and green fruit often occur in fruit crops during spring frost events. In this study, freezing tolerance of ‘Triple Crown’ blackberry flowers at different reproductive stages of development (tight bud to green drupe) was determined using two methods. One method i...

  17. The calculating rating of electronic resources

    OpenAIRE

    MUMINOV BAHODIR.BOLTAYEICH

    2016-01-01

    The rating of electron resources is devoted to count by theories, directions in this work. The calculating model of rating of ER by entering and exiting directions on bases of used widely PageRank is produced for calculating the rating of web pages in Google searching system. The rating of ER is taken into account for calculating the ratings of entering direction and the calculating exiting direction is accomplished by equitable distribution of ER. And also the calculating rating ER among kin...

  18. Making sense of the electronic resource marketplace: trends in health-related electronic resources.

    Science.gov (United States)

    Blansit, B D; Connor, E

    1999-07-01

    Changes in the practice of medicine and technological developments offer librarians unprecedented opportunities to select and organize electronic resources, use the Web to deliver content throughout the organization, and improve knowledge at the point of need. The confusing array of available products, access routes, and pricing plans makes it difficult to anticipate the needs of users, identify the top resources, budget effectively, make sound collection management decisions, and organize the resources effectively and seamlessly. The electronic resource marketplace requires much vigilance, considerable patience, and continuous evaluation. There are several strategies that librarians can employ to stay ahead of the electronic resource curve, including taking advantage of free trials from publishers; marketing free trials and involving users in evaluating new products; watching and testing products marketed to the clientele; agreeing to beta test new products and services; working with aggregators or republishers; joining vendor advisory boards; benchmarking institutional resources against five to eight competitors; and forming or joining a consortium for group negotiating and purchasing. This article provides a brief snapshot of leading biomedical resources; showcases several libraries that have excelled in identifying, acquiring, and organizing electronic resources; and discusses strategies and trends of potential interest to biomedical librarians, especially those working in hospital settings.

  19. Biofabrication of copper oxide nanoparticles using Andean blackberry (Rubus glaucus Benth.) fruit and leaf

    OpenAIRE

    Brajesh Kumar; Kumari Smita; Luis Cumbal; Alexis Debut; Yolanda Angulo

    2017-01-01

    Biofabrication of copper oxide nanoparticles (CuO-NPs) of a desired size remains a significant challenge. In this report, CuO-NPs were fabricated by treating 10 mM copper nitrate with Andean blackberry fruit (ABF) and leaf (ABL); and evaluated its antioxidant activity. As-prepared NPs characterization were determined by UV–visible spectrophotometry, Dynamic Light Scattering (DLS), transmission electron microscopy (TEM) with selected area electron diffraction (SAED) and X-ray diffraction (XRD)...

  20. Electronic resource management systems a workflow approach

    CERN Document Server

    Anderson, Elsa K

    2014-01-01

    To get to the bottom of a successful approach to Electronic Resource Management (ERM), Anderson interviewed staff at 11 institutions about their ERM implementations. Among her conclusions, presented in this issue of Library Technology Reports, is that grasping the intricacies of your workflow-analyzing each step to reveal the gaps and problems-at the beginning is crucial to selecting and implementing an ERM. Whether the system will be used to fill a gap, aggregate critical data, or replace a tedious manual process, the best solution for your library depends on factors such as your current soft

  1. Utilization of electronic information resources in Ramat Library ...

    African Journals Online (AJOL)

    ... printer, and audio-visuals are equally available. Student have unlimited accessibility in the utilization of electronic resources, students frequently utilized electronic information resources in Ramat Library. It is recommended, among others, that registered students should utilize and access electronic information resources ...

  2. Ultrasound agitated phytofabrication of palladium nanoparticles using Andean blackberry leaf and its photocatalytic activity

    OpenAIRE

    Kumar, Brajesh; Smita, Kumari; Cumbal, Luis; Debut, Alexis

    2015-01-01

    In this report, ultrasonication and Andean blackberry leaf extract are employed for the fabrication of palladium nanoparticles (PdNPs); and further evaluated its photocatalytic activity against methylene blue (MB). The as-synthesized PdNPs were characterized using UV–visible spectroscopy, transmission electron microscopy (TEM), Dynamic light scattering (DLS) and X-ray diffraction (XRD). TEM analysis demonstrated the formation of decahedron shape PdNPs with a diameter of 55–60 nm and XRD confi...

  3. Genetic diversity among some blackberry cultivars and their ...

    African Journals Online (AJOL)

    In this study, genetic diversity among these blackberry cultivars and their genetic relationship with Boysenberry and raspberry were analyzed using AFLP markers. Our results indicated that Blackberry cultivars from North America had narrow genetic background which can pose a problem for future breeding programs.

  4. Impact of electronic resources use on academic performance of ...

    African Journals Online (AJOL)

    Results indicated that use of electronic resources had a positive impact on students' academic performance. Based on the findings of this study, it is recommended that more emphasis should be laid on the acquisition of electronic resources so as to give room for wider and multiple access to information resources in order to ...

  5. Use of Electronic Resources in a Private University in Nigeria ...

    African Journals Online (AJOL)

    The study examined awareness and constraints in the use of electronic resources by lecturers and students of Ajayi Crowther University, Oyo, Nigeria. It aimed at justifying the resources expended in the provision of electronic resources in terms of awareness, patronage and factors that may be affecting awareness and use ...

  6. The Evolution of Selection Activities for Electronic Resources.

    Science.gov (United States)

    Davis, Trisha L.

    1997-01-01

    Selection of electronic resources--CD-ROMs, dial access databases, electronic journals, and World Wide Web products--requires a more extensive set of criteria than do print resources. Discusses two factors influencing collection development of electronic products: technology options and licensing issues, and outlines how traditional selection…

  7. Electronic Resource Management System. Vernetzung von Lizenzinformationen

    Directory of Open Access Journals (Sweden)

    Michaela Selbach

    2014-12-01

    Full Text Available In den letzten zehn Jahren spielen elektronische Ressourcen im Bereich der Erwerbung eine zunehmend wichtige Rolle: Eindeutig lässt sich hier ein Wandel in den Bibliotheken (fort vom reinen Printbestand zu immer größeren E-Only-Beständen feststellen. Die stetig wachsende Menge an E-Ressourcen und deren Heterogenität stellt Bibliotheken vor die Herausforderung, die E-Ressourcen effizient zu verwalten. Nicht nur Bibliotheken, sondern auch verhandlungsführende Institutionen von Konsortial- und Allianzlizenzen benötigen ein geeignetes Instrument zur Verwaltung von Lizenzinformationen, welches den komplexen Anforderungen moderner E-Ressourcen gerecht wird. Die Deutsche Forschungsgemeinschaft (DFG unterstützt ein Projekt des Hochschulbibliothekszentrums des Landes Nordrhein-Westfalen (hbz, der Universitätsbibliothek Freiburg, der Verbundzentrale des Gemeinsamen Bibliotheksverbundes (GBV und der Universitätsbibliothek Frankfurt, in dem ein bundesweit verfügbares Electronic Ressource Managementsystem (ERMS aufgebaut werden soll. Ein solches ERMS soll auf Basis einer zentralen Knowledge Base eine einheitliche Nutzung von Daten zur Lizenzverwaltung elektronischer Ressourcen auf lokaler, regionaler und nationaler Ebene ermöglichen. Statistische Auswertungen, Rechteverwaltung für alle angeschlossenen Bibliotheken, kooperative Datenpflege sowie ein über standardisierte Schnittstellen geführter Datenaustausch stehen bei der Erarbeitung der Anforderungen ebenso im Fokus wie die Entwicklung eines Daten- und Funktionsmodells. In the last few years the importance of electronic resources in library acquisitions has increased significantly. There has been a shift from mere print holdings to both e- and print combinations and even e-only subscriptions. This shift poses a double challenge for libraries: On the one hand they have to provide their e-resource collections to library users in an appealing way, on the other hand they have to manage these

  8. Electronic resources access and usage among the postgraduates of ...

    African Journals Online (AJOL)

    Electronic resources access and usage among the postgraduates of a Nigerian University of Technology. ... by postgraduates in using e-resources include takes too much time to find, e-resources are not always accessible, lack of supporting structures (connection, downloading, printing limits) and too many resources.

  9. Utilization of electronic information resources by academic staff at ...

    African Journals Online (AJOL)

    The study investigated the utilization of Electronic Information resources by the academic staff of Makerere University in Uganda. It examined the academic staff awareness of the resources available, the types of resources provided by the Makerere University Library, the factors affecting resource utilization. The study was ...

  10. The impact of electronic information resource use on research output

    African Journals Online (AJOL)

    This paper examines the impact of the use of electronic information resources on research output in the universities in Tanzania. Research for this paper was conducted in five public universities in Tanzania with varied levels of access to electronic information resources. The selection of the sample universities was ...

  11. Using Electronic Resources to Support Problem-Based Learning

    Science.gov (United States)

    Chang, Chen-Chi; Jong, Ay; Huang, Fu-Chang

    2012-01-01

    Students acquire skills in problem solving and critical thinking through the process as well as team work on problem-based learning courses. Many courses have started to involve the online learning environment and integrate these courses with electronic resources. Teachers use electronic resources in their classes. To overcome the problem of the…

  12. impact of the use of electronic resources on research output

    African Journals Online (AJOL)

    manda

    Abstract. This paper examines the impact of the use of electronic information resources on research output in the universities in Tanzania. Research for this paper was conducted in five public universities in Tanzania with varied levels of access to electronic information resources. The selection of the sample universities was ...

  13. The Role of the Acquisitions Librarian in Electronic Resources Management

    Science.gov (United States)

    Pomerantz, Sarah B.

    2010-01-01

    With the ongoing shift to electronic formats for library resources, acquisitions librarians, like the rest of the profession, must adapt to the rapidly changing landscape of electronic resources by keeping up with trends and mastering new skills related to digital publishing, technology, and licensing. The author sought to know what roles…

  14. Use of electronic resources by undergraduates in two selected ...

    African Journals Online (AJOL)

    The purpose of this study is to know the extent of use of electronic resources and identify the type of electronic resources used by undergraduates in universities in Nigeria. Questionnaire was used for data collection. The study population includes all undergraduate students in the faculty of engineering in Niger Delta ...

  15. Electronic resources preferred by pediatric hospitalists for clinical care.

    Science.gov (United States)

    Beck, Jimmy B; Tieder, Joel S

    2015-10-01

    There is little research on pediatric hospitalists' use of evidence-based resources. The aim of this study was to determine the electronic resources that pediatric hospitalists prefer. Using a web-based survey, the authors determined hospitalists' preferred electronic resources, as well as their attitudes toward lifelong learning, practice, and experience characteristics. One hundred sixteen hospitalists completed the survey. The most preferred resource for general information, patient handouts, and treatment was UpToDate. Online search engines were ranked second for general information and patient handouts. Pediatric hospitalists tend to utilize less rigorous electronic resources such as UpToDate and Google. These results can set a platform for discussing the quality of resources that pediatric hospitalists use.

  16. Library training to promote electronic resource usage

    DEFF Research Database (Denmark)

    Frandsen, Tove Faber; Tibyampansha, Dativa; Ibrahim, Glory

    2017-01-01

    of implementing training programmes to encourage the use of the e-library. Findings: Training sessions increase the usage of library e-resources significantly; however, the effect seems to be short-lived and training sessions alone may not increase the overall long-term usage. Originality/value: The present paper...

  17. Integrating Electronic Resources into the Library Catalog: A Collaborative Approach.

    Science.gov (United States)

    Herrera, Gail; Aldana, Lynda

    2001-01-01

    Describes a project at the University of Mississippi Libraries to catalog purchased electronic resources so that access to these resources is available only via the Web-based library catalog. Discusses collaboration between cataloging and systems personnel; and describes the MARC catalog record field that contains the information needed to locate…

  18. Utilisation of Electronic Information Resources By Lecturers in ...

    African Journals Online (AJOL)

    This study assesses the use of information resources, specifically, electronic databases by lecturers/teachers in Universities and Colleges of Education in South Western Nigeria. Information resources are central to teachers' education. It provides lecturers/teachers access to information that enhances research and ...

  19. Preservation and conservation of electronic information resources of ...

    African Journals Online (AJOL)

    The major holdings of the broadcast libraries of the Nigerian Television Authority (NTA) are electronic information resources; therefore, providing safe places for general management of these resources have aroused interest in the industry in Nigeria for sometimes. The need to study the preservation and conservation of ...

  20. Using XML Technologies to Organize Electronic Reference Resources

    OpenAIRE

    Huser, Vojtech; Del Fiol, Guilherme; Rocha, Roberto A.

    2005-01-01

    Provision of access to reference electronic resources to clinicians is becoming increasingly important. We have created a framework for librarians to manage access to these resources at an enterprise level, rather than at the individual hospital libraries. We describe initial project requirements, implementation details, and some preliminary results.

  1. Euler European Libraries and Electronic Resources in Mathematical Sciences

    CERN Document Server

    The Euler Project. Karlsruhe

    The European Libraries and Electronic Resources (EULER) Project in Mathematical Sciences provides the EulerService site for searching out "mathematical resources such as books, pre-prints, web-pages, abstracts, proceedings, serials, technical reports preprints) and NetLab (for Internet resources), this outstanding engine is capable of simple, full, and refined searches. It also offers a browse option, which responds to entries in the author, keyword, and title fields. Further information about the Project is provided at the EULER homepage.

  2. A blackberry (Rubus L.) expressed sequence tag library for the development of simple sequence repeat markers

    OpenAIRE

    Lewers, Kim S; Saski, Chris A; Cuthbertson, Brandon J; Henry, David C; Staton, Meg E; Main, Dorrie S; Dhanaraj, Anik L; Rowland, Lisa J; Tomkins, Jeff P

    2008-01-01

    Abstract Background The recent development of novel repeat-fruiting types of blackberry (Rubus L.) cultivars, combined with a long history of morphological marker-assisted selection for thornlessness by blackberry breeders, has given rise to increased interest in using molecular markers to facilitate blackberry breeding. Yet no genetic maps, molecular markers, or even sequences exist specifically for cultivated blackberry. The purpose of this study is to begin development of these tools by ge...

  3. Building an electronic resource collection a practical guide

    CERN Document Server

    Lee, Stuart D

    2004-01-01

    This practical book guides information professionals step-by-step through building and managing an electronic resource collection. It outlines the range of electronic products currently available in abstracting and indexing, bibliographic, and other services and then describes how to effectively select, evaluate and purchase them.

  4. Characteristics of blackberry and raspberry seeds and oils

    Directory of Open Access Journals (Sweden)

    Dimić Etelka B.

    2012-01-01

    Full Text Available This study is concerned with the determination of technological quality characteristics of dried pomaces, i.e. blackberry and raspberry seeds, along with the quality parameters, content of total carotenoids and chlorophyl and transparency of crude extracted oil (using organic solvent. Blackberry seeds (Rubus fruticosus L. were obtained from a domestic variety Čačanska bestrna, while the raspberry seeds (Rubus idaeus L. were of the variety Willamette. Oil content of the blackberry pomace was 13.97 and 14.34%, while the oil content of the raspberry pomace was 13.44 and 14.33% on dry basis (d.b.. In regard to technological characteristics of the pomaces, i.e. volumetric and specific weight, no considerably difference was found. However, a weight test for 1000 seeds showed a significant difference in weight: 3.5 g (d.b. for the blackberry pomace and 1.5 g for the raspberry pomace (d.b.. Proximate analysis of blackberry seed oil showed that this oil had better quality since the FFA value was 3.43% (sample B1 and 3.53% (sample B2, while the peroxide value was 8.89 and 11.16 mmol/kg, respectively. Raspberry seed oil had higher FFA (8.59 and 8.83% for sample R1 and R2 and peroxide values (13.99 and 13.84 for sample R1 and R2 than the blackberry seed oil. Crude extracted blackberry seed oil had a brown-greenish color due to the high total chlorophyll content (around 3000 mg/kg dissolved in cyclohexane. Raspberry seed oil had a dark yellowishorange color, due to lower chlorophyll content (around 200 mg/kg compared to the blackberry seed oil, while the content of total carotenoids was slightly higher in this oil (around 40 mg/kg compared to the blackberry seed oil (33 mg/kg. [Projekat Ministarstva nauke Republike Srbije, br. TR 31014: Development of the new functional confectionery products based on oil crops

  5. Organizational matters of competition in electronic educational resources

    Directory of Open Access Journals (Sweden)

    Ирина Карловна Войтович

    2015-12-01

    Full Text Available The article examines the experience of the Udmurt State University in conducting competitions of educational publications and electronic resources. The purpose of such competitions is to provide methodological support to educational process. The main focus is on competition of electronic educational resources. The technology of such contests is discussed through detailed analysis of the main stages of the contest. It is noted that the main task of the preparatory stage of the competition is related to the development of regulations on competition and the definition of criteria for selection of the submitted works. The paper also proposes a system of evaluation criteria of electronic educational resources developed by members of the contest organizing committee and jury members. The article emphasizes the importance of not only the preparatory stages of the competition, but also measures for its completion, aimed at training teachers create quality e-learning resources.

  6. USE OF VIDEO IN MULTIMEDIA ELECTRONIC EDUCATIONAL RESOURCES

    Directory of Open Access Journals (Sweden)

    Svitlana Denisenko

    2015-10-01

    Full Text Available The widespread introduction of electronic educational resources in the educational process requires the development of a scientific basis for all aspects related to their creation and use. These modern means are designed not just to convey to learners the required course material, but also to create conditions for its most effective study. This is possible in conditions of reasonable approach to the presentation of educational material on the screen. The article is devoted to consideration of the problem of presenting educational material in electronic educational resources. Visuals are powerful didactic tool that enhances the perception and understanding of educational information. Particular attention is paid to the use of such a powerful medium like video. Investigated the role and importance of video in the learning process, their educational opportunities and benefits. Shows types of video and their use in electronic educational resources. Grounded requirements for training videos. The recommendations are given on the use of video in combination with other media in electronic educational resources. Adduced the example a real electronic multimedia educational resource and shows the possibility of using video.

  7. Stabilization of anthocyanins in blackberry juice by glutathione fortification.

    Science.gov (United States)

    Stebbins, Nathan B; Howard, Luke R; Prior, Ronald L; Brownmiller, Cindi; Mauromoustakos, Andy

    2017-10-18

    Blackberry anthocyanins provide attractive color and antioxidant activity. However, anthocyanins degrade during juice processing and storage, so maintaining high anthocyanin concentrations in berry juices may lead to greater antioxidant and health benefits for the consumer. This study evaluated potential additives to stabilize anthocyanins during blackberry juice storage. The anthocyanin stabilizing agents used were: glutathione, galacturonic acid, diethylenetriaminepentaacetic acid and tannic acid, which were added at a level of 500 mg L -1 . Juice anthocyanin, flavonol, and ellagitannin content and percent polymeric color were measured over five weeks of accelerated storage at 30 °C. Glutathione had the greatest protective effect on total anthocyanins and polymeric color. Therefore a second study was performed with glutathione in combination with lipoic and ascorbic acids in an effort to use antioxidant recycling to achieve a synergistic effect. However, the antioxidant recycling system had no protective effect relative to glutathione alone. Glutathione appears to be a promising blackberry juice additive to protect against anthocyanin degradation during storage.

  8. Why and How to Measure the Use of Electronic Resources

    Directory of Open Access Journals (Sweden)

    Jean Bernon

    2008-11-01

    Full Text Available A complete overview of library activity implies a complete and reliable measurement of the use of both electronic resources and printed materials. This measurement is based on three sets of definitions: document types, use types and user types. There is a common model of definitions for printed materials, but a lot of questions and technical issues remain for electronic resources. In 2006 a French national working group studied these questions. It relied on the COUNTER standard, but found it insufficient and pointed out the need for local tools such as web markers and deep analysis of proxy logs. Within the French national consortium COUPERIN, a new working group is testing ERMS, SUSHI standards, Shibboleth authentication, along with COUNTER standards, to improve the counting of the electronic resources use. At this stage this counting is insufficient and its improvement will be a European challenge for the future.

  9. The Study of Analytical Model of Library Electronic Resources Usage-A Case of Medical Electronic Resources

    Directory of Open Access Journals (Sweden)

    Chung-Yen Yu

    2014-10-01

    Full Text Available With the advents of internet, the importance of electronic resources is growing. Due to the increasing expensiveness of electronic resources, university libraries normally received budgets from parent institutions annually. They necessarily applied effective and systematic methods for decision making in electronic resources purchase or re-subscription. However, there are some difficulties in practices: First of all, libraries are unable to receive user records; second, the COUNTER statistics does not include details about users and their affiliation. As a result, one cannot conduct advanced user analysis based on the usage of users, institutions, and departments. To overcome the difficulties, this study presents a feasible model to analyze electronic resource usage effectively and flexibly. We set up a proxy server to collect actual usage raw data. By analyzing items in internet browsing records, associated with original library automatic system, this study aims at exploring how to use effective ways to analyze big data of website log data. We also propose the process of how original data to be transformed, cleared, integrated, and demonstrated. This study adopted a medical university library and its subscription of medical electronic resources as a case. Our data analysis includes (1 year of subscription,(2 title of journal, (3 affiliation, (4 subjects, and (5 specific journal requirements, etc. The findings of the study are contributed to obtain further understanding in policy making and user behavior analysis. The integrated data provides multiple applications in informatics research, information behavior, bibliomining, presenting diverse views and extended issues for further discussion.

  10. Access to electronic resources by visually impaired people

    Directory of Open Access Journals (Sweden)

    Jenny Craven

    2003-01-01

    Full Text Available Research into access to electronic resources by visually impaired people undertaken by the Centre for Research in Library and Information Management has not only explored the accessibility of websites and levels of awareness in providing websites that adhere to design for all principles, but has sought to enhance understanding of information seeking behaviour of blind and visually impaired people when using digital resources.

  11. Practical guide to electronic resources in the humanities

    CERN Document Server

    Dubnjakovic, Ana

    2010-01-01

    From full-text article databases to digitized collections of primary source materials, newly emerging electronic resources have radically impacted how research in the humanities is conducted and discovered. This book, covering high-quality, up-to-date electronic resources for the humanities, is an easy-to-use annotated guide for the librarian, student, and scholar alike. It covers online databases, indexes, archives, and many other critical tools in key humanities disciplines including philosophy, religion, languages and literature, and performing and visual arts. Succinct overviews of key eme

  12. Electronic Commerce Resource Centers. An Industry--University Partnership.

    Science.gov (United States)

    Gulledge, Thomas R.; Sommer, Rainer; Tarimcilar, M. Murat

    1999-01-01

    Electronic Commerce Resource Centers focus on transferring emerging technologies to small businesses through university/industry partnerships. Successful implementation hinges on a strategic operating plan, creation of measurable value for customers, investment in customer-targeted training, and measurement of performance outputs. (SK)

  13. Printed And Electronic Resources Utilization By Agricultural Science ...

    African Journals Online (AJOL)

    This paper examines the use of printed and electronic resources by agricultural science students in three Nigerian universities. A two-part questionnaire was designed to elicit necessary information from the respondents selected for the study. One thousand three hundred (1300) respondents from faculties of Agriculture in ...

  14. Electronic information resource sharing among university libraries in ...

    African Journals Online (AJOL)

    The study explored the state of electronic information resource sharing among university libraries in Southern part of Nigeria, highlighting the prospects and the challenges. The study was an empirical research which adopted the descriptive survey as the design. The questionnaire was used to collect data from the ...

  15. Page 170 Use of Electronic Resources by Undergraduates in Two ...

    African Journals Online (AJOL)

    undergraduate students use electronic resources such as NUC virtual library, HINARI, E- journals, CD-ROMs, AGORA, and ... to finance and geographical location. Furthermore, in developed countries like United Kingdom, students get access to .... databases, web sources and audio-video tapes. Furthermore, studies also ...

  16. Modern ICT Tools: Online Electronic Resources Sharing Using Web ...

    African Journals Online (AJOL)

    Modern ICT Tools: Online Electronic Resources Sharing Using Web 2.0 and Its Implications For Library And Information Practice In Nigeria. ... The PDF file you selected should load here if your Web browser has a PDF reader plug-in installed (for example, a recent version of Adobe Acrobat Reader). If you would like more ...

  17. Users satisfaction with electronic information resources and services ...

    African Journals Online (AJOL)

    Users satisfaction with electronic information resources and services in A.B.U & UNIBEN MTN Net Libraries. ... Lastly, management of the MTN Net Libraries should conduct user studies annually in order to have feedback from users on how well the library is meeting their information needs. The results of the survey should ...

  18. ANALYTICAL REVIEW OF ELECTRONIC RESOURCES FOR THE STUDY OF LATIN

    Directory of Open Access Journals (Sweden)

    Olena Yu. Balalaieva

    2014-04-01

    Full Text Available The article investigates the current state of development of e-learning content in the Latin language. It is noted that the introduction of ICT in the educational space has expanded the possibility of studying Latin, opened access to digital libraries resources, made it possible to use scientific and educational potential and teaching Latin best practices of world's leading universities. A review of foreign and Ukrainian information resources and electronic editions for the study of Latin is given. Much attention was paid to the didactic potential of local and online multimedia courses of Latin, electronic textbooks, workbooks of interactive tests and exercises, various dictionaries and software translators, databases and digital libraries. Based on analysis of the world market of educational services and products the main trends in the development of information resources and electronic books are examined. It was found that multimedia courses with interactive exercises or workbooks with interactive tests, online dictionaries and translators are the most widely represented and demanded. The noticeable lagging of Ukrainian education and computer linguistics in quantitative and qualitative measures in this industry is established. The obvious drawback of existing Ukrainian resources and electronic editions for the study of Latin is their noninteractive nature. The prospects of e-learning content in Latin in Ukraine are outlined.

  19. Gender Analysis Of Electronic Information Resource Use: The Case ...

    African Journals Online (AJOL)

    This article is based on an empirical study that examined the association between gender and the use of electronic information resources among postgraduate students at the University of Dar es salaam, Tanzania. The study was conducted in December 2005 and integrated both qualitative and quantitative research ...

  20. Use of electronic information resources among the undergraduate ...

    African Journals Online (AJOL)

    The study aimed at finding out the use of electronic information resources among undergraduate students in the Federal University of Technology, Akure. The study is based on descriptive survey design method and the population consists of 16,962 undergraduate students across different schools at the Federal University ...

  1. Adoption and use of electronic information resources by medical ...

    African Journals Online (AJOL)

    This study investigated the adoption and use of electronic information resources by medical science students of the University of Benin. The descriptive survey research design was adopted for the study and 390 students provided the data. Data collected were analysed with descriptive Statistics(Simple percentage and ...

  2. Student Satisfaction with Electronic Library Resources at Wayne State University

    Science.gov (United States)

    Holley, Robert P.; Powell, Ronald R.

    2004-01-01

    This paper reports the results of a survey of student satisfaction with electronic library resources other than the online catalog at Wayne State University. Undertaken in Fall Term 2000 as a class project for a marketing course, a student team designed, administered, and analyzed a survey of a random sample of students. Almost 40% of the…

  3. Technical Communicator: A New Model for the Electronic Resources Librarian?

    Science.gov (United States)

    Hulseberg, Anna

    2016-01-01

    This article explores whether technical communicator is a useful model for electronic resources (ER) librarians. The fields of ER librarianship and technical communication (TC) originated and continue to develop in relation to evolving technologies. A review of the literature reveals four common themes for ER librarianship and TC. While the…

  4. Access to electronic information resources by students of federal ...

    African Journals Online (AJOL)

    The paper discusses access to electronic information resources by students of Federal Colleges of Education in Eha-Amufu and Umunze. Descriptive survey design was used to investigate sample of 526 students. Sampling technique used was a Multi sampling technique. Data for the study were generated using ...

  5. Development of a multiplexed fingerprinting set in blackberry

    Science.gov (United States)

    A reliable and fast method for confirming identity and paternity in blackberry is needed. Microsatellite or simple sequence repeat (SSR) markers are ideal for cultivar fingerprinting, paternity testing and identity certification. The objective of this study was to develop a multiplexed fingerprintin...

  6. Adaptation of eight American blackberry (Rubus fructicosus L ...

    African Journals Online (AJOL)

    STORAGESEVER

    2008-08-04

    Aug 4, 2008 ... desserts, jams, seedless jellies and wine. It is known to contain naturally occurring polyphenol antioxidants that can regulate certain beneficial metabolic processes in mammals. Blackberry is a fruit of mild climate and can easily adapt to different ecological conditions. The plant grows very fast in woods ...

  7. PENGARUH EXPERIENTIAL MARKETING TERHADAP EXPERIENTIAL VALUE PADA PRODUK BLACKBERRY

    OpenAIRE

    Larasati, Pradipta Ayu

    2013-01-01

    Penelitian ini dilakukan untuk menganalisis pengaruh experiential marketing terhadap experiential value pada produk Blackberry. Variabel Independen (experiential marketing) yang digunakan yaitu sense experience, feel experience, think experience, act experience dan relate experience. Sedangkan variabel dependen (experiential value) terdiri dari 4 dimensi yaitu customer return on investment, playfulness, aesthetic dan service excellence. Responden dalam penelitian ini berjumlah ...

  8. Changes in aroma composition of blackberry wine during ...

    African Journals Online (AJOL)

    academics

    number of aroma components in raw material (55 in numbers), raw wine (54 in numbers), and aging wine (50 in numbers) were ..... Wang et al. 16509. Table 1. The main aroma compositions in blackberry fruit juice after primary and secondary fermentation. Alcohol. Molecular formula. Molecular weight. Percentage (%). 1#.

  9. Changes in aroma composition of blackberry wine during ...

    African Journals Online (AJOL)

    The study aimed at investigating the influence of fermentation (primary and secondary) on aroma composition of blackberry wine. Gas chromatography-mass spectrometry (GC-MS) was applied to quantify the compounds relevant to sparkling wine aroma. Investigation on this study revealed that a number of aroma ...

  10. Evaluating the appropriateness of electronic information resources for learning.

    Science.gov (United States)

    Saparova, Dinara; Nolan, Nathanial S

    2016-01-01

    Current US medical students have begun to rely on electronic information repositories-such as UpToDate, AccessMedicine, and Wikipedia-for their pre-clerkship medical education. However, it is unclear whether these resources are appropriate for this level of learning due to factors involving information quality, level of evidence, and the requisite knowledgebase. This study evaluated appropriateness of electronic information resources from a novel perspective: amount of mental effort learners invest in interactions with these resources and effects of the experienced mental effort on learning. Eighteen first-year medical students read about three unstudied diseases in the above-mentioned resources (a total of fifty-four observations). Their eye movement characteristics (i.e., fixation duration, fixation count, visit duration, and task-evoked pupillary response) were recorded and used as psychophysiological indicators of the experienced mental effort. Post reading, students' learning was assessed with multiple-choice tests. Eye metrics and test results constituted quantitative data analyzed according to the repeated Latin square design. Students' perceptions of interacting with the information resources were also collected. Participants' feedback during semi-structured interviews constituted qualitative data and was reviewed, transcribed, and open coded for emergent themes. Compared to AccessMedicine and Wikipedia, UpToDate was associated with significantly higher values of eye metrics, suggesting learners experienced higher mental effort. No statistically significant difference between the amount of mental effort and learning outcomes was found. More so, descriptive statistical analysis of the knowledge test scores suggested similar levels of learning regardless of the information resource used. Judging by the learning outcomes, all three information resources were found appropriate for learning. UpToDate, however, when used alone, may be less appropriate for first

  11. TO QUESTION OF QUALITY EXAMINATION OF ELECTRONIC EDUCATIONAL RESOURCES

    OpenAIRE

    Svitlana G. Lytvynova

    2013-01-01

    The article deals with the scientific and methodological approaches to the examination of quality of electronic educational resources (EER) for secondary schools. It was defined conceptual apparatus, described the object of examination, clarified certain aspects of the functions of examination, determined the basic tasks of expertise, summarized the principles of expertise (scientific, personalization, active involvement in the learning process), described the requirements to the participants...

  12. Analysis of empty responses from electronic resources in infobutton managers.

    Science.gov (United States)

    Long, Jie; Hulse, Nathan C; Tao, Cui

    2015-01-01

    Infobuttons provide context-aware educational materials to both providers and patients and are becoming an important element in modern electronic health records (EHR) and patient health records (PHR). However, the content from different electronic resources (e-resource) as responses from infobutton manager has not been fully analyzed and evaluated. In this paper, we propose a method for automatically analyzing responses from infobutton manager. A tool is implemented to retrieve and analyze responses from infobutton manager. To test the tool, we extracted and sampled common and uncommon concepts from EHR usage data in Intermountain Healthcare's enterprise data warehouse. From the output of the tool, we evaluate infobutton performance by multiple categories, including against the most and less common used concepts, grouped by different modules in patient portal, by different e-resources, and by type of access (standardized Health Level Seven (HL7) vs not). Based on the results of our evaluation, we provide suggestions for further enhancements of infobuttons to the current implementation, including suggesting accessing priorities of e-resources and encouraging the use of the HL7 standard.

  13. Evaluating increased resource use in fibromyalgia using electronic health records

    Directory of Open Access Journals (Sweden)

    Margolis JM

    2016-11-01

    Full Text Available Jay M Margolis,1 Elizabeth T Masters,2 Joseph C Cappelleri,3 David M Smith,1 Steven Faulkner4 1Truven Health Analytics, Life Sciences, Outcomes Research, Bethesda, MD, 2Pfizer Inc, Outcomes & Evidence, New York, NY, 3Pfizer Inc, Statistics, Groton, CT, 4Pfizer Inc, North American Medical Affairs, Medical Outcomes Specialists, St Louis, MO, USA Objective: The management of fibromyalgia (FM, a chronic musculoskeletal disease, remains challenging, and patients with FM are often characterized by high health care resource utilization. This study sought to explore potential drivers of all-cause health care resource utilization and other factors associated with high resource use, using a large electronic health records (EHR database to explore data from patients diagnosed with FM. Methods: This was a retrospective analysis of de-identified EHR data from the Humedica database. Adults (≥18 years with FM were identified based on ≥2 International Classification of Diseases, Ninth Revision codes for FM (729.1 ≥30 days apart between January 1, 2008 and December 31, 2012 and were required to have evidence of ≥12 months continuous care pre- and post-index; first FM diagnosis was the index event; 12-month pre- and post-index reporting periods. Multivariable analysis evaluated relationships between variables and resource utilization. Results: Patients were predominantly female (81.4%, Caucasian (87.7%, with a mean (standard deviation age of 54.4 (14.8 years. The highest health care resource utilization was observed for the categories of “medication orders” and “physician office visits,” with 12-month post-index means of 21.2 (21.5 drug orders/patient and 15.1 (18.1 office visits/patient; the latter accounted for 73.3% of all health care visits. Opioids were the most common prescription medication, 44.3% of all patients. The chance of high resource use was significantly increased (P<0.001 26% among African-Americans vs Caucasians and for patients

  14. Comparison between four blackberry (Rubus sp.) cultivars to light variation

    International Nuclear Information System (INIS)

    Enciso, B.E.; Gómez, C.

    2004-01-01

    Abstract: This paper compares four Colombian blackberry cultivars- (Rubus sp.) light compensation points, leaf area, chlorophyll concentration and photosynthetic capacity. Time can be saved and efficiency improved by adapting different cultivars to differing luminosity once these parameters have been determined and established. The four cultivars involved were -Guarne-, -San Antonio-, -Sara 3- and -Pacho 2- forming part of Corpoica-s blackberry collection at the Sena farm in Manizales. The results revealed that all four cultivars had different light compensation points. They also showed that net photosynthesis varied amongst cultivars, even when grown in the same environmental conditions and that total chlorophyll and leaf area may be used as indicators of response to the conditions being evaluated. Key words: Photosynthesis, leaf area, radiation, compensation point, photons flow density (PFD), chlorophyll [es

  15. Peranan Atribut Ekstrinsik Merek terhadap Minat Beli Konsumen Smartphone Blackberry

    Directory of Open Access Journals (Sweden)

    Anas Hidayat

    2016-06-01

    Full Text Available Abstract This research aims to examine the role of brand preference, luxury brand perception and country of origin in influencing consumers to buy Blackberry smarthphone, as well as to examine the role of country of origin in influencing luxury brand perception. The population of this research are students in economics faculty of Indonesia Islamic University, and the sample used is 250 respondent. This research was found that the most devotee of blackberry smartphone is women, with 53,6%, aged between 18-23 years old, with a pocket money between Rp1.000.000-Rp2.000.000 monthly and expenditure of Rp500.000-Rp1.499.999 monthly. By using Structural Equation Modeling, the results show that there are positive and significant impact on the country of origin to the purchase intention, positive and significant impact on the country of origin to luxury brand perception, positive and significant impact on the luxury brand perception to purchase intention and positive and significant impact on the brand preference to purchase intention of blackberry smartphone’s consumer in economics faculty of Indonesia Islamic University.

  16. End-of-life resource recovery from emerging electronic products

    DEFF Research Database (Denmark)

    Parajuly, Keshav; Habib, Komal; Cimpan, Ciprian

    2016-01-01

    Integrating product design with appropriate end-of-life (EoL) processing is widely recognized to have huge potentials in improving resource recovery from electronic products. In this study, we investigate both the product characteristics and EoL processing of robotic vacuum cleaner (RVC), as a case......-case scenario, only 47% of the total materials in RVCs are ultimately recycled. While this low material recovery is mainly due to the lower plastic recycling rate, other market realities and the complex material flows in the recycling chain also contribute to it. The study provides a robust methodological...... approach for assessing the EoL performance based on the knowledge of a product and its complex recycling chain. The lessons learned can be used to support both the design and EoL processing of products with similar features, which carry a high potential for resource recovery, especially at the initial...

  17. Analysis of Human Resources Management Strategy in China Electronic Commerce Enterprises

    Science.gov (United States)

    Shao, Fang

    The paper discussed electronic-commerce's influence on enterprise human resources management, proposed and proved the human resources management strategy which electronic commerce enterprise should adopt from recruitment strategy to training strategy, keeping talent strategy and other ways.

  18. Ultrasound agitated phytofabrication of palladium nanoparticles using Andean blackberry leaf and its photocatalytic activity

    Directory of Open Access Journals (Sweden)

    Brajesh Kumar

    2015-09-01

    Full Text Available In this report, ultrasonication and Andean blackberry leaf extract are employed for the fabrication of palladium nanoparticles (PdNPs; and further evaluated its photocatalytic activity against methylene blue (MB. The as-synthesized PdNPs were characterized using UV–visible spectroscopy, transmission electron microscopy (TEM, Dynamic light scattering (DLS and X-ray diffraction (XRD. TEM analysis demonstrated the formation of decahedron shape PdNPs with a diameter of 55–60 nm and XRD confirmed its crystalline nature. It showed photocatalytic decomposition of MB (>72%, k = 0.002164 min−1, 10 mg/L in an aqueous solution under solar light irradiation. From the results obtained it is suggested that ultrasound agitated aqueous leaf extract demonstrates a simple, rapid, inexpensive method and should be utilized in future as green technology for the fabrication of nanoparticles.

  19. Effects of Electronic Information Resources Skills Training for Lecturers on Pedagogical Practices and Research Productivity

    Science.gov (United States)

    Bhukuvhani, Crispen; Chiparausha, Blessing; Zuvalinyenga, Dorcas

    2012-01-01

    Lecturers use various electronic resources at different frequencies. The university library's information literacy skills workshops and seminars are the main sources of knowledge of accessing electronic resources. The use of electronic resources can be said to have positively affected lecturers' pedagogical practices and their work in general. The…

  20. A blackberry (Rubus L.) expressed sequence tag library for the development of simple sequence repeat markers.

    Science.gov (United States)

    Lewers, Kim S; Saski, Chris A; Cuthbertson, Brandon J; Henry, David C; Staton, Meg E; Main, Dorrie S; Dhanaraj, Anik L; Rowland, Lisa J; Tomkins, Jeff P

    2008-06-20

    The recent development of novel repeat-fruiting types of blackberry (Rubus L.) cultivars, combined with a long history of morphological marker-assisted selection for thornlessness by blackberry breeders, has given rise to increased interest in using molecular markers to facilitate blackberry breeding. Yet no genetic maps, molecular markers, or even sequences exist specifically for cultivated blackberry. The purpose of this study is to begin development of these tools by generating and annotating the first blackberry expressed sequence tag (EST) library, designing primers from the ESTs to amplify regions containing simple sequence repeats (SSR), and testing the usefulness of a subset of the EST-SSRs with two blackberry cultivars. A cDNA library of 18,432 clones was generated from expanding leaf tissue of the cultivar Merton Thornless, a progenitor of many thornless commercial cultivars. Among the most abundantly expressed of the 3,000 genes annotated were those involved with energy, cell structure, and defense. From individual sequences containing SSRs, 673 primer pairs were designed. Of a randomly chosen set of 33 primer pairs tested with two blackberry cultivars, 10 detected an average of 1.9 polymorphic PCR products. This rate predicts that this library may yield as many as 940 SSR primer pairs detecting 1,786 polymorphisms. This may be sufficient to generate a genetic map that can be used to associate molecular markers with phenotypic traits, making possible molecular marker-assisted breeding to compliment existing morphological marker-assisted breeding in blackberry.

  1. First report of Raspberry bushy dwarf virus in blackberry in Ecuador

    Science.gov (United States)

    During the past two decades, several viruses have been identified from Rubus (blackberry and raspberry) in wild and commercial plantings around the world (1) In Ecuador; approximately 14 tons of blackberries (Rubus glaucus) are produced each year in an estimated area of 5,500 hectares. This crop pro...

  2. Electronic Document Management: A Human Resource Management Case Study

    Directory of Open Access Journals (Sweden)

    Thomas Groenewald

    2004-11-01

    Full Text Available This case study serve as exemplar regarding what can go wrong with the implementation of an electronic document management system. Knowledge agility and knowledge as capital, is outlined against the backdrop of the information society and knowledge economy. The importance of electronic document management and control is sketched thereafter. The literature review is concluded with the impact of human resource management on knowledge agility, which includes references to the learning organisation and complexity theory. The intervention methodology, comprising three phases, follows next. The results of the three phases are presented thereafter. Partial success has been achieved with improving the human efficacy of electronic document management, however the client opted to discontinue the system in use. Opsomming Die gevalle studie dien as voorbeeld van wat kan verkeerd loop met die implementering van ’n elektroniese dokumentbestuur sisteem. Teen die agtergrond van die inligtingsgemeenskap en kennishuishouding word kennissoepelheid en kennis as kapitaal bespreek. Die literatuurstudie word afgesluit met die inpak van menslikehulpbronbestuur op kennissoepelheid, wat ook die verwysings na die leerorganisasie en kompleksietydsteorie insluit. Die metodologie van die intervensie, wat uit drie fases bestaan, volg daarna. Die resultate van die drie fases word vervolgens aangebied. Slegs gedeelte welslae is behaal met die verbetering van die menslike doeltreffendheid ten opsigte van elektroniese dokumentbestuur. Die klient besluit egter om nie voort te gaan om die huidige sisteem te gebruik nie.

  3. CrackBerry The Tales of BlackBerry Use and Abuse

    CERN Document Server

    Michaluk, Kevin J; Trautschold, Martin

    2011-01-01

    A delayed train, a dip in the conversation, an early morning hour with no sleep - during these moments, do you feel an overwhelming urge to grab your BlackBerry? Do you know someone else who does? If the answer is yes, then look no further than this one-of-a-kind book...CrackBerry: True Tales of Blackberry Use and Abuse covers the phenomenon of "BlackBerry Addiction," offering true-life accounts of BlackBerry dependence and mishaps. You'll find comfort and humor in the unbelievable tales of BlackBerry abuse and also learn some valuable tips along the way. * The definitive guide to respons

  4. Phytosynthesis and photocatalytic activity of magnetite (Fe3O4) nanoparticles using the Andean blackberry leaf

    International Nuclear Information System (INIS)

    Kumar, Brajesh; Smita, Kumari; Cumbal, Luis; Debut, Alexis; Galeas, Salome; Guerrero, Victor H.

    2016-01-01

    In the present study, a simple, low cost, and ecofriendly synthesis of magnetite nanoparticles (Fe 3 O 4 NPs) has been developed using Andean blackberry leaf extract. UV–vis spectroscopy technique were used to study the initial formation of Fe 3 O 4 NPs. Morphology, crystallinity and surface properties of nanoparticles were studied using transmission electron microscopy (TEM), Dynamic light scattering (DLS), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR) and Thermal gravimetric (TG) techniques. TEM and DLS characterization indicated the formation of spherical Fe 3 O 4 NPs of average size 54.5 ± 24.6 nm. XRD and FTIR studies confirmed the existence of the cubic spinel phase of Fe 3 O 4 NPs and Fe−O peak at 570 cm −1 , whereas TG analysis indicated that the nanoparticles contain 94% metal and 6% capping ligand. It has been observed that, as-synthesized Fe 3 O 4 NPs exhibited photocatalytic activity for degradation of organic dyes such as methylene blue (k = 0.0105475 min −1 ), congo red (k = 0.0043240 min −1 ), and methyl orange (k = 0.0028930 min −1 ), efficiently. The antioxidant activity of Fe 3 O 4 NPs against 1, 1-diphenyl-2-picrylhydrazyl were also evaluated. - Highlights: • We report extracellular phytosynthesis of Fe 3 O 4 nanoparticles using the Andean blackberry leaf. • The synthesized Fe 3 O 4 nanoparticles are spherical and average size is 54.5 ± 24.6 nm. • It showed enhanced photocatalytic activity and weak antioxidant efficacy. • Environmentally benign, non-toxic and cost-effective method is suggested.

  5. TO QUESTION OF QUALITY EXAMINATION OF ELECTRONIC EDUCATIONAL RESOURCES

    Directory of Open Access Journals (Sweden)

    Svitlana G. Lytvynova

    2013-04-01

    Full Text Available The article deals with the scientific and methodological approaches to the examination of quality of electronic educational resources (EER for secondary schools. It was defined conceptual apparatus, described the object of examination, clarified certain aspects of the functions of examination, determined the basic tasks of expertise, summarized the principles of expertise (scientific, personalization, active involvement in the learning process, described the requirements to the participants of EER expertise, grounded EER accordance to didactic and methodological requirements, described an algorithm of preparation for  the examination object to determine compliance with the requirements of didactic. It is established that the assessment is aimed to the receipt from the experts of corresponding data and acceptance on their basis of competent decisions about expedience of the use in general educational establishments.

  6. Antioxidant Activities of Total Pigment Extract from Blackberries

    Directory of Open Access Journals (Sweden)

    Jiechao Liu

    2005-01-01

    Full Text Available Total pigment has been extracted from blackberries and its antioxidant activity against lipid peroxidation and scavenging capacities towards superoxide anion radicals, hydroxyl radicals and nitrite in different in vitro systems have been investigated. The total pigment extract from blackberries (TPEB exhibited strong antioxidant activity against lipid peroxidation in a linoleic acid model system and scavenging capacities towards superoxide anion radicals, generated by a pyrogallol autoxidation system or by an illuminating riboflavin system, hydroxyl radicals generated by Fenton reaction, and nitrite. Furthermore, the antioxidant activities were correlated with the concentrations of the TPEB. In the test concentration range, the maximum inhibition percentage against linoleic acid peroxidation was 98.32 % after one week’s incubation, and the maximum scavenging percentages for the free radicals and nitrite inhibition in the above reactive systems reached 90.48, 96.48, 93.58 and 98.94 %, respectively. The TPEB is a natural, edible colorant with excellent antioxidant activities and health benefits and it seems to be applicable in both healthy food and medicine.

  7. Electronic Safety Resource Tools -- Supporting Hydrogen and Fuel Cell Commercialization

    Energy Technology Data Exchange (ETDEWEB)

    Barilo, Nick F.

    2014-09-29

    The Pacific Northwest National Laboratory (PNNL) Hydrogen Safety Program conducted a planning session in Los Angeles, CA on April 1, 2014 to consider what electronic safety tools would benefit the next phase of hydrogen and fuel cell commercialization. A diverse, 20-person team led by an experienced facilitator considered the question as it applied to the eight most relevant user groups. The results and subsequent evaluation activities revealed several possible resource tools that could greatly benefit users. The tool identified as having the greatest potential for impact is a hydrogen safety portal, which can be the central location for integrating and disseminating safety information (including most of the tools identified in this report). Such a tool can provide credible and reliable information from a trustworthy source. Other impactful tools identified include a codes and standards wizard to guide users through a series of questions relating to application and specific features of the requirements; a scenario-based virtual reality training for first responders; peer networking tools to bring users from focused groups together to discuss and collaborate on hydrogen safety issues; and a focused tool for training inspectors. Table ES.1 provides results of the planning session, including proposed new tools and changes to existing tools.

  8. Biofabrication of copper oxide nanoparticles using Andean blackberry (Rubus glaucus Benth. fruit and leaf

    Directory of Open Access Journals (Sweden)

    Brajesh Kumar

    2017-01-01

    Full Text Available Biofabrication of copper oxide nanoparticles (CuO-NPs of a desired size remains a significant challenge. In this report, CuO-NPs were fabricated by treating 10 mM copper nitrate with Andean blackberry fruit (ABF and leaf (ABL; and evaluated its antioxidant activity. As-prepared NPs characterization were determined by UV–visible spectrophotometry, Dynamic Light Scattering (DLS, transmission electron microscopy (TEM with selected area electron diffraction (SAED and X-ray diffraction (XRD analysis. UV–visible spectroscopy showed an electronic excitonic transition at 250–255 nm clearly reveals the formation of ABF and ABL CuO-NPs. DLS analysis demonstrated mean diameter of ABF CuO-NPs (43.3 nm smaller than ABL CuO-NPs (52.5 nm. TEM with SAED confirmed the CuO-NPs are spherical and of partial crystalline nature. Furthermore, the antioxidant efficacy of ABF CuO-NPs showed 89.02%, 1 mM whereas ABL CuO-NPs 75.92%, 1 mM against 1,1-diphenyl-2-picrylhydrazyl. From the results obtained it is suggested that green CuO-NPs could be used effectively in future biomedical concerns.

  9. Surface and nutraceutical properties of edible films made from starchy sources with and without added blackberry pulp.

    Science.gov (United States)

    Gutiérrez, Tomy J

    2017-06-01

    The surface and nutraceutical properties have been poorly studied on edible films. The aim of this study was to investigate the surface properties and potential health effects in terms of in vitro digestibility and anti-inflammatory activity. The materials were developed from native plantain starch and pre-gelatinized plantain flour with and without added blackberry pulp using casting methodology. Thermogravimetric analysis, contact angle, scanning electron microscopy, atomic force microscopy, resistant starch, in vitro digestibility, cell viability, reactive oxygen species, anti-inflammatory activity and sensory evaluation were the tests carried out in this study. Films containing blackberry pulp had more compact and smooth morphologies, which were related to the lower in vitro digestibility rate and the higher resistant starch content. In addition, these materials had higher anti-inflammatory activity, higher cell viability, and better acceptance by the panelists, thus suggesting potential health effects of consumers with special feeding regimes such as obese, diabetics and celiacs. Copyright © 2017 Elsevier Ltd. All rights reserved.

  10. Controlling user access to electronic resources without password

    Energy Technology Data Exchange (ETDEWEB)

    Smith, Fred Hewitt

    2015-06-16

    Described herein are devices and techniques for remotely controlling user access to a restricted computer resource. The process includes pre-determining an association of the restricted computer resource and computer-resource-proximal environmental information. Indicia of user-proximal environmental information are received from a user requesting access to the restricted computer resource. Received indicia of user-proximal environmental information are compared to associated computer-resource-proximal environmental information. User access to the restricted computer resource is selectively granted responsive to a favorable comparison in which the user-proximal environmental information is sufficiently similar to the computer-resource proximal environmental information. In at least some embodiments, the process further includes comparing user-supplied biometric measure and comparing it with a predetermined association of at least one biometric measure of an authorized user. Access to the restricted computer resource is granted in response to a favorable comparison.

  11. A blackberry (Rubus L. expressed sequence tag library for the development of simple sequence repeat markers

    Directory of Open Access Journals (Sweden)

    Main Dorrie S

    2008-06-01

    Full Text Available Abstract Background The recent development of novel repeat-fruiting types of blackberry (Rubus L. cultivars, combined with a long history of morphological marker-assisted selection for thornlessness by blackberry breeders, has given rise to increased interest in using molecular markers to facilitate blackberry breeding. Yet no genetic maps, molecular markers, or even sequences exist specifically for cultivated blackberry. The purpose of this study is to begin development of these tools by generating and annotating the first blackberry expressed sequence tag (EST library, designing primers from the ESTs to amplify regions containing simple sequence repeats (SSR, and testing the usefulness of a subset of the EST-SSRs with two blackberry cultivars. Results A cDNA library of 18,432 clones was generated from expanding leaf tissue of the cultivar Merton Thornless, a progenitor of many thornless commercial cultivars. Among the most abundantly expressed of the 3,000 genes annotated were those involved with energy, cell structure, and defense. From individual sequences containing SSRs, 673 primer pairs were designed. Of a randomly chosen set of 33 primer pairs tested with two blackberry cultivars, 10 detected an average of 1.9 polymorphic PCR products. Conclusion This rate predicts that this library may yield as many as 940 SSR primer pairs detecting 1,786 polymorphisms. This may be sufficient to generate a genetic map that can be used to associate molecular markers with phenotypic traits, making possible molecular marker-assisted breeding to compliment existing morphological marker-assisted breeding in blackberry.

  12. Antioxidant activity and total phenol content of blackberries cultivated in a highland tropical climate

    OpenAIRE

    Guedes, Mayara Neves Santos; Pio, Rafael; Maro, Luana Aparecida Castilho; Lage, Fabíola Fonseca; Abreu, Celeste Maria Patto de; Saczk, Adelir Aparecida

    2017-01-01

    ABSTRACT. Blackberries are an important option for the diversification of fruit crops. However, there is currently no literature regarding plant cultivation in high-altitude tropical climates. Knowledge of the phenolic composition of blackberries is essential because variations in the levels of these components may exist between cultivars and may depend on environmental conditions. High performance liquid chromatography (HPLC) was used to evaluate the total phenol content of different blackbe...

  13. Resources

    Science.gov (United States)

    ... Colon cancer - resources Cystic fibrosis - resources Depression - resources Diabetes - resources Digestive disease - resources Drug abuse - resources Eating disorders - resources Elder care - resources Epilepsy - resources Family ...

  14. Pengaruh Kualitas Produk, Harga Dan Nilai Pelanggan Terhadap Kepuasan Pelanggan Handphone Blackberry (Studi Pada Mahasiswa Fakultas Ilmu Sosial Dan Ilmu Politik Universitas Diponegoro Semarang)

    OpenAIRE

    Widyawati, Suci; Farida, Naili; Wijayanto, Andi

    2013-01-01

    BlackBerry smartphone is one of the leading products in Indonesia. BlackBerry has a high market share compared with other brands of smartphone, but BlackBerry users consumer satisfaction index has declined. It is very influential on consumer loyalty to BlackBerry mobile phone. This study aimed to determine the effect of product quality, price and customer value on customer satisfaction BlackBerry mobile phone. Population in this research is a BlackBerry mobile phone users in FISIP UNDIP Semar...

  15. The Internet School of Medicine: use of electronic resources by medical trainees and the reliability of those resources.

    Science.gov (United States)

    Egle, Jonathan P; Smeenge, David M; Kassem, Kamal M; Mittal, Vijay K

    2015-01-01

    Electronic sources of medical information are plentiful, and numerous studies have demonstrated the use of the Internet by patients and the variable reliability of these sources. Studies have investigated neither the use of web-based resources by residents, nor the reliability of the information available on these websites. A web-based survey was distributed to surgical residents in Michigan and third- and fourth-year medical students at an American allopathic and osteopathic medical school and a Caribbean allopathic school regarding their preferred sources of medical information in various situations. A set of 254 queries simulating those faced by medical trainees on rounds, on a written examination, or during patient care was developed. The top 5 electronic resources cited by the trainees were evaluated for their ability to answer these questions accurately, using standard textbooks as the point of reference. The respondents reported a wide variety of overall preferred resources. Most of the 73 responding medical trainees favored textbooks or board review books for prolonged studying, but electronic resources are frequently used for quick studying, clinical decision-making questions, and medication queries. The most commonly used electronic resources were UpToDate, Google, Medscape, Wikipedia, and Epocrates. UpToDate and Epocrates had the highest percentage of correct answers (47%) and Wikipedia had the lowest (26%). Epocrates also had the highest percentage of wrong answers (30%), whereas Google had the lowest percentage (18%). All resources had a significant number of questions that they were unable to answer. Though hardcopy books have not been completely replaced by electronic resources, more than half of medical students and nearly half of residents prefer web-based sources of information. For quick questions and studying, both groups prefer Internet sources. However, the most commonly used electronic resources fail to answer clinical queries more than half

  16. Developing Humanities Collections in the Digital Age: Exploring Humanities Faculty Engagement with Electronic and Print Resources

    Science.gov (United States)

    Kachaluba, Sarah Buck; Brady, Jessica Evans; Critten, Jessica

    2014-01-01

    This article is based on quantitative and qualitative research examining humanities scholars' understandings of the advantages and disadvantages of print versus electronic information resources. It explores how humanities' faculty members at Florida State University (FSU) use print and electronic resources, as well as how they perceive these…

  17. Checklist Manifesto for Electronic Resources: Getting Ready for the Fiscal Year and Beyond

    Science.gov (United States)

    England, Lenore; Fu, Li; Miller, Stephen

    2011-01-01

    Organization of electronic resources workflow is critical in the increasingly complicated and complex world of library management. A simple organizational tool that can be readily applied to electronic resources management (ERM) is the use of checklists. Based on the principles discussed in The Checklist Manifesto: How to Get Things Right, the…

  18. Electronic resource management practical perspectives in a new technical services model

    CERN Document Server

    Elguindi, Anne

    2012-01-01

    A significant shift is taking place in libraries, with the purchase of e-resources accounting for the bulk of materials spending. Electronic Resource Management makes the case that technical services workflows need to make a corresponding shift toward e-centric models and highlights the increasing variety of e-formats that are forcing new developments in the field.Six chapters cover key topics, including: technical services models, both past and emerging; staffing and workflow in electronic resource management; implementation and transformation of electronic resource management systems; the ro

  19. Use of Internet and Electronic Resources amongst Postgraduate ...

    African Journals Online (AJOL)

    Findings indicate that the study group has regular access to the internet , and preferred using free online resources from Google and Wikipedia to institutionally subscribed academic online resources in databases such as HINARI, EBSCO Host, Questia , JSTOR and High Beam.This shows that technology alone cannot help ...

  20. Strategic Planning for Electronic Resources Management: A Case Study at Gustavus Adolphus College

    Science.gov (United States)

    Hulseberg, Anna; Monson, Sarah

    2009-01-01

    Electronic resources, the tools we use to manage them, and the needs and expectations of our users are constantly evolving; at the same time, the roles, responsibilities, and workflow of the library staff who manage e-resources are also in flux. Recognizing a need to be more intentional and proactive about how we manage e-resources, the…

  1. Tribological and corrosion behaviour of electroless Ni-B coating possessing a blackberry like structure

    Science.gov (United States)

    Bülbül, Ferhat; Altun, Hikmet; Küçük, Özkan; Ezirmik, Vefa

    2012-08-01

    This study aims to evaluate the tribological and corrosion properties of the electroless Ni-B coating deposited on AISI 304 stainless steels. The microstructure of the coating was characterized using x-ray diffraction (XRD) and scanning electron microscopy-energy dispersive spectrometry (SEM-EDS). XRD analysis revealed that the prepared coating possessed an amorphous character. SEM-EDS investigation also indicated that a non-stoichiometric Ni-B coating was deposited with a columnar growth mechanism on the stainless steel substrate and the morphology of the growth surface was blackberry-like. The hardness and tribological properties were characterized by microhardness and a pin-on-disc wear test. The electroless Ni-B coated sample had a higher degree of hardness, a lower friction coefficient and a lower wear rate than the uncoated substrate. The electrochemical potentiodynamic polarization method was used to evaluate the corrosion resistance of the coating. The electroless Ni-B coating offered cathodic protection on the substrate by acting as a sacrificial anode although it was electrochemically more reactive than the stainless steel substrate.

  2. [Comparison of the antioxidant properties of selected parts of raspberry (Rubus idaeus) and blackberry (Rubus fruticosus)

    Science.gov (United States)

    Zielonka-Brzezicka, Joanna; Nowak, Anna; Zielińska, Magdalena; Klimowicz, Adam

    Antioxidants contained in plant raw materials prevent oxidative stress, and reduce the degenerative effects of free radical reactions and damage caused by UV radiation. Antioxidant activity is exhibited, for example, in raspberry (Rubus idaeus), and blackberry (Rubus fruticosus), which have a high content of tannins, flavonoids, phenolic acids, vitamins and minerals. The raw plant material consisted of fresh and dried leaves and fruits of raspberries and blackberries harvested in 2014. This material was extracted using a Soxhlet apparatus and by an ultrasound-assisted technique. To evaluate antioxidant activity DPPH and FRAP methods were used in the first year and DPPH and ABTS methods in the second year of the study. The highest antioxidant activity, evaluated by the DPPH method in 2015, was demonstrated by both raspberry and blackberry fresh leaf extracts, whereas the highest reductive ability, assessed by FRAP, was demonstrated in fresh and dried blackberry leaves. In the next year of the study (2016), the activity of samples evaluated using the DPPH method did not differ significantly, with the exception of fresh raspberry leaf. In this year, the highest antioxidant properties, assessed using the ABTS method, were shown by extracts made of fresh blackberry leaves and fruits, and dried blackberry leaves. All the studied material, both ethanolic leaves and fruit extracts of raspberry and blackberry, reduced free radicals, which was examined using three methods of evaluation of the antioxidative properties (DPPH, FRAP and ABTS). The storage of ethanolic extracts at ambient temperature had no significant impact on the activity reduction of the evaluated plant material. The antioxidant activity of most examined extracts remained consistently high, which may be reflected in the use of the studied materials as sources of antioxidants in the cosmetics and pharmaceuticals industries.

  3. Preservation of and Permanent Access to Electronic Information Resources

    National Research Council Canada - National Science Library

    Hodge, Gail

    2004-01-01

    The rapid growth in the creation and dissemination of electronic information has emphasized the digital environment's speed and ease of dissemination with little regard for its long-term preservation and access...

  4. Controlling user access to electronic resources without password

    Energy Technology Data Exchange (ETDEWEB)

    Smith, Fred Hewitt

    2017-08-22

    Described herein are devices and techniques for remotely controlling user access to a restricted computer resource. The process includes obtaining an image from a communication device of a user. An individual and a landmark are identified within the image. Determinations are made that the individual is the user and that the landmark is a predetermined landmark. Access to a restricted computing resource is granted based on the determining that the individual is the user and that the landmark is the predetermined landmark. Other embodiments are disclosed.

  5. impact of the use of electronic resources on research output

    African Journals Online (AJOL)

    manda

    reported using free Internet resources including the search engines, while only a small proportion uses scholarly databases. For example, 22% of researchers reported using the. African Journals Online (AJOL) while 7% use Gale databases (see Table 2 for details). Additionally, the frequency of use also varied significantly ...

  6. Challenges associated with cataloguing of electronic resources in ...

    African Journals Online (AJOL)

    The aim of the paper is to identify challenges associated with the cataloguing of e resources in some selected university libraries in south –south Nigeria. The descriptive survey design involving the use of questionnaire as the research instrument was adopted. The population comprised of cataloguers in five selected ...

  7. Uptake and partitioning of nutrients in blackberry and raspberry and evaluating plant nutrient status for accurate assessment of fertilizer requirements

    Science.gov (United States)

    Raspberry and blackberry plantings have a relatively low nutrient requirement compared to many other perennial fruit crops. Annual total N accumulation ranged from 62-110 lb/a in red raspberry and 33-39 lb/a in blackberry. Primocanes rely primarily on fertilizer N for growth, whereas floricane growt...

  8. Availability of Electronic Resources for Service Provision in ...

    African Journals Online (AJOL)

    The study also revealed that majority of the University libraries have adequate basic infrastructure for effective electronic information services. ... acquired by the library are put into maximal use by the library clientele, thereby ensuring the achievement of the library's objective which is satisfying the users, information needs.

  9. Growing an Electronic Library: Resources, Utility, Marketing and Politics.

    Science.gov (United States)

    Dugdale, David; Dugdale, Christine

    2000-01-01

    Describes the development of the ResIDe Electronic Library at the University of the West of England, Bristol. Analyzes potential of the system to increase economy, efficiency and effectiveness in library services and relates it to how the needs of sponsors and students can be met. (Author/LRW)

  10. Refrigeration and edible coatings in blackberry (Rubus spp.) conservation.

    Science.gov (United States)

    Oliveira, Dalany Menezes; Kwiatkowski, Angela; Rosa, Cassia Ines Lourenzi Franco; Clemente, Edmar

    2014-09-01

    An experiment was conducted to evaluate the conservation of blackberry, cv. Tupy, stored under refrigeration and coated with different edible coatings. Four treatments were carried out: control T1 (uncoated), T2 (chitosan 1.5 %), T3 (cassava starch 2.5 %) and T4 (kefir grains in water 20 %), stored at temperatures of 0 and 10 °C; 1.0 % (m/v) sorbitol/glycerol was added as plasticizers. Chemical and physical-chemical evaluations (weight loss, firmness, pH, titratable acidity, soluble solids, SS/TA ratio and anthocyanins) were made, besides rot incidence. The results showed that cooling to 0 °C combined with T2 showed an effect in reducing the physiological loss of weight (4.41 %), in retaining fruit firmness (19.1 N) and presenting lower incidence of rot (6.19 %). Likewise, in physical and chemical parameters: SS did not alter significantly during the whole period of 18 days of storage.

  11. MODELING OF QUALITY MANAGEMENT SYSTEM FOR ELECTRONIC LEARNING RESOURCES: THE INTEGRATED AND DIFFERENTIATED APPROACHES

    Directory of Open Access Journals (Sweden)

    H. M. Kravtsov

    2012-03-01

    Full Text Available Abstract. Results on modeling of quality management system of electronic information resources on the basis of the analysis of its elements functioning with use of the integrated and differentiated approaches are presented. Application of such model is illustrated on an example of calculation and optimization of parameters of a quality management system at the organization of the co-ordinated work of services of monitoring, an estimation of quality and support of electronic learning resources.

  12. A Study on Developing Evaluation Criteria for Electronic Resources in Evaluation Indicators of Libraries

    Science.gov (United States)

    Noh, Younghee

    2010-01-01

    This study aimed to improve the current state of electronic resource evaluation in libraries. While the use of Web DB, e-book, e-journal, and other e-resources such as CD-ROM, DVD, and micro materials is increasing in libraries, their use is not comprehensively factored into the general evaluation of libraries and may diminish the reliability of…

  13. Managing Selection for Electronic Resources: Kent State University Develops a New System to Automate Selection

    Science.gov (United States)

    Downey, Kay

    2012-01-01

    Kent State University has developed a centralized system that manages the communication and work related to the review and selection of commercially available electronic resources. It is an automated system that tracks the review process, provides selectors with price and trial information, and compiles reviewers' feedback about the resource. It…

  14. Video Killed the Radio Star: Language Students' Use of Electronic Resources-Reading or Viewing?

    Science.gov (United States)

    Kiliçkaya, Ferit

    2016-01-01

    The current study aimed to investigate language students' use of print and electronic resources for their research papers required in research techniques class, focusing on which reading strategies they used while reading these resources. The participants of the study were 90 sophomore students enrolled in the research techniques class offered at…

  15. Where Do Electronic Books Fit in the College Research Arsenal of Resources?

    Science.gov (United States)

    Barbier, Patricia

    2007-01-01

    Student use of electronic books has become an accepted supplement to traditional resources. Student use and satisfaction was monitored through an online course discussion board. Increased use of electronic books indicate this service is an accepted supplement to the print book collection.

  16. Male and Female Buying Decision Making Processes Seen From BlackBerry Messenger Texts

    OpenAIRE

    Haryanto, Deviana Stefani; Ibrahim, Jusuf I

    2014-01-01

    This study observes the male and female buying decision making processes seen from BlackBerry Messenger texts. It focuses on the way of how male and female customers make a buying decision in the online shop via BlackBerry Messenger. The data are analyzed by using the theory of the consumer decision-making process by Lamb, Hair, McDaniel (2003) which includes five stages. I found that the female customers have almost two times total more than male customers in the four stages in consumer deci...

  17. The effects of pesticides on morphology, viability, and germination of Blackberry (Rubus glaucus Benth.) and Tree tomato (Solanum betaceum Cav.) pollen grains.

    Science.gov (United States)

    Padilla, Flavio; Soria, Norman; Oleas, Abrahan; Rueda, Darwin; Manjunatha, Bangeppagari; Kundapur, Rajesh R; Maddela, Naga Raju; Rajeswari, Bugude

    2017-07-01

    The objective of this study was to determine the effect of application of pesticides on morphology, viability, and germination of pollen grains of Blackberry (Rubus glaucus Benth.) and Tree tomato (Solanum betaceum Cav.). The study was performed at Patate, Tungurahua province, Ecuador and was divided into two phases. Phase one dedicated to the study of morphology, viability, and identification of nutrient solution for better germination of pollen grains and phase two for the analysis of the effect of conventional, organic, and biological pesticides on pollen grain germination and pollen tube length. To study pollen morphology, pollens were extracted by hand pressure and was analyzed by optical and electron microscopy. The viable pollen grains were identified by staining with 1% acetocarmine. Even though Tree tomato and Blackberry pollen grains are morphologically similar, their exine shapes differ. We observed four times increase in pollen germination rate when suspended in nutrient solution (Sucrose with Boric acid) than control (water). Pollen grains under nutrient solution were subjected to different groups of pesticides for the period of 2, 4, and 6 h. With respect to pesticide affect, the Blackberry pollen grain germination followed the following order: Lecaniceb > Beauveb > Metazeb => Myceb > Control. However, the effect on Tree tomato pollen grains was as follows: Lecaniceb > Myceb > Cantus > Bacillus thuringiensis > Kripton > Control. As per as pollen grain germination is concerned, we observed that the chemical pesticides are more harmful than other pesticides. So, it is necessary to perform screening test for different pesticides and their effect on pollen grain germination before applying to the fields.

  18. The National Site Licensing of Electronic Resources: An Institutional Perspective

    Directory of Open Access Journals (Sweden)

    Xiaohua Zhu

    2011-06-01

    Full Text Available While academic libraries in most countries are struggling to negotiate with publishers and vendors individually or collaboratively via consortia, a few countries have experimented with a different model, national site licensing (NSL. Because NSL often involves government and large-scale collaboration, it has the potential to solve many problems in the complex licensing world. However, not many nations have adopted it. This study uses historical research approach and the comparative case study research method to explore the seemingly low level of adoption. The cases include the Canadian National Site Licensing Project (CNSLP, the United Kingdom’s National Electronic Site Licensing Initiative (NESLI, and the United States, which has not adopted NSL. The theoretical framework guiding the research design and data collection is W. Richard Scott’s institutional theory, which utilizes three supporting pillars—regulative, normative, and cultural-cognitive—to analyze institutional processes. In this study, the regulative pillar and the normative pillar of NSL adoption— an institutional construction and change—are examined. Data were collected from monographs, research articles, government documents, and relevant websites. Based on the analysis of these cases, a preliminary model is proposed for the adoption of NSL. The factors that support a country’s adoption of NSL include the need for new institutions, a centralized educational policy-making system and funding system, supportive political trends, and the tradition of cooperation. The factors that may prevent a country from adopting NSL include decentralized educational policy and funding, diversity and the large number of institutions, the concern for the “Big Deal,” and the concern for monopoly.

  19. Use of poisons information resources and satisfaction with electronic products by Victorian emergency department staff.

    Science.gov (United States)

    Luke, Stephen; Fountain, John S; Reith, David M; Braitberg, George; Cruickshank, Jaycen

    2014-10-01

    ED staff use a range of poisons information resources of varying type and quality. The present study aims to identify those resources utilised in the state of Victoria, Australia, and assess opinion of the most used electronic products. A previously validated self-administered survey was conducted in 15 EDs, with 10 questionnaires sent to each. The survey was then repeated following the provision of a 4-month period of access to Toxinz™, an Internet poisons information product novel to the region. The study was conducted from December 2010 to August 2011. There were 117 (78%) and 48 (32%) responses received from the first and second surveys, respectively, a 55% overall response rate. No statistically significant differences in professional group, numbers of poisoned patients seen or resource type accessed were identified between studies. The electronic resource most used in the first survey was Poisindex® (48.68%) and Toxinz™ (64.1%) in the second. There were statistically significant (P poisons information but would do so if a reputable product was available. The order of poisons information sources most utilised was: consultation with a colleague, in-house protocols and electronic resources. There was a significant difference in satisfaction with electronic poisons information resources and a movement away from existing sources when choice was provided. Interest in increased use of mobile solutions was identified. © 2014 Australasian College for Emergency Medicine and Australasian Society for Emergency Medicine.

  20. The effects of switching the camera module from BlackBerry Curve 9360 devices

    NARCIS (Netherlands)

    Gisolf, F.; Geradts, Z.; Verhoeven, D.; Klaver, C.

    A Photo-Response Non-Uniformity (PRNU) pattern is the 'fingerprint' of a digital camera, which is left in the images acquired with the camera. It can be used to identify the source of suspect images. For a case a BlackBerry phone with a camera was obtained and the question was if this phone was the

  1. Indole butyric acid and substrates influence on multiplication of blackberry 'Xavante'

    Directory of Open Access Journals (Sweden)

    Ibrar Hussain

    2014-10-01

    Full Text Available Blackberry is a shrubby plant specie which has a high economic importance among agriculture crops. Brazil is the major country of Latin America with the highest future scope for blackberries. For availability of good quality and maximum quantity of seedlings, the present study was carried out at the Universidade Estadual de Londrina,PR from January to March in 2013. The aim of the study was to evaluate the multiplication of blackberry 'Xavante' cuttings under different type of substrates treated with different levels of indole butyric acid (IBA. The experiment was laid out in randomized complete block design with 2 factors, i.e., substrate (rice husk, vermiculite and coconut fiber and IBA (0; 1,000; 2,000 and 3,000mg L-1, with 5 replications. Each replicate consisted of 10 cuttings. The variables studied were: cutting rooting, cutting survival, leaf retention, cuttings with new leaves, number of major roots, length of major roots and roots dry weight. Most of the variables were significantly affected by both substrate and IBA. Rice husk and vermiculite performed better than coconut fiber and provided the same results for most of the variables, while coconut fiber showed lower performance for all of the variables studied. IBA significantly affected the rooting and the number of major roots. It is concluded that for multiplication of blackberry 'Xavante', both rice husk and vermiculite can be used along 2,000mg L-1 of IBA

  2. Formulating blackberry leaf mixtures for preparation of infusions with plant derived sources of sweeteners.

    Science.gov (United States)

    Komes, Draženka; Belščak-Cvitanović, Ana; Ljubičić, Ivan; Durgo, Ksenija; Cindrić, Iva Juranović; Bušić, Arijana; Vojvodić, Aleksandra

    2014-05-15

    Herbal mixtures composed of blackberry leaf and natural sweeteners (dried apples, prunes, figs, raisins, apricots, carrot and sweet potato, stevia leaves and liquorice root) were developed. Their nutritive and bioactive profile, biological activity and sensory properties were determined. Formulated mixtures exhibited lower total polyphenol content (259.09-350.00 mg GAE/L) when compared to plain blackberry leaf, but contained higher content of chlorogenic, ferulic, p-coumaric, rosmarinic acids and quercetin, as well as some macroelements (Ca, K, Mg) and microelements (Ba, Na). Stevia addition to formulated mixtures ensured higher polyphenolic content. Dried carrot exhibited the highest (0.988 g/g) and liquorice the lowest (0.087 g/g) content of total sugars but it contributed to the sweetness with 574.48 mg/L of glycyrrhizic acid derivatives. Plain blackberry leaf extract exhibited cytotoxic and antioxidative activity on human colon cancer cells. Formulated mixtures exhibited improved flavour profile and balanced sweetness in relation to plain blackberry leaf infusion. Copyright © 2013 Elsevier Ltd. All rights reserved.

  3. Improving access to information – defining core electronic resources for research and wellbeing

    Directory of Open Access Journals (Sweden)

    Kristiina Hormia-Poutanen

    2007-11-01

    Full Text Available Research and innovation are listed as the key success factors for the future development of Finnish prosperity and the Finnish economy. The Finnish libraries have developed a scenario to support this vision. University, polytechnic and research institute libraries as well as public libraries have defined the core electronic resources necessary to improve access to information in Finland. The primary aim of this work has been to provide information and justification for central funding for electronic resources to support the national goals. The secondary aim is to help with the reallocation of existing central funds to better support access to information.

  4. Retention of polyphenolic species in spray-dried blackberry extract using mannitol as a thermoprotectant.

    Science.gov (United States)

    Eldridge, Joshua A; Repko, Debra; Mumper, Russell J

    2014-10-01

    The purpose of these studies was to determine if a Büchi Mini Spray Dryer B-290 (Büchi Corporation, New Castle, DE, USA) could be used to prepare blackberry extract powders containing mannitol as a thermoprotectant without extensively degrading anthocyanins and polyphenols in the resulting powders. Three blackberry puree extract samples were each prepared by sonication of puree in 30/70% ethanol/water containing 0.003% HCl. Blackberry puree extract sample 1 (S1) contained no mannitol, while blackberry puree extract sample 2 (S2) contained 3.0:1 (w/w) mannitol:berry extract, and blackberry puree extract sample 3 (S3) contained 6.3:1 (w/w) mannitol:berry extract. The levels of anthocyanins and polyphenols in reconstituted spray-dried powders produced from S1-S3 were compared to solutions of S1-S3 that were held at 4°C as controls. All extract samples could be spray-dried using the Büchi Mini Spray Dryer B-290. S1, with no mannitol, showed a 30.8% decrease in anthocyanins and a 24.1% decrease in polyphenols following spray-drying. However, S2 had a reduction in anthocyanins of only 13.8%, while polyphenols were reduced by only 6.1%. S3, with a ratio of mannitol to berry extract of 6.3:1, exhibited a 12.5% decrease in anthocyanins while the decrease in polyphenols after spray-drying was not statistically significant (P=.16). Collectively, these data indicate that a Büchi Mini Spray Dryer B-290 is a suitable platform for producing stable berry extract powders, and that mannitol is a suitable thermoprotectant that facilitates retention of thermosensitive polyphenolic species in berry extracts during spray-drying.

  5. Analytical Study of Usage of Electronic Information Resources at Pharmacopoeial Libraries in India

    Directory of Open Access Journals (Sweden)

    Sunil Tyagi

    2014-02-01

    Full Text Available The objective of this study is to know the rate and purpose of the use of e-resource by the scientists at pharmacopoeial libraries in India. Among other things, this study examined the preferences of the scientists toward printed books and journals, electronic information resources, and pattern of using e-resources. Non-probability sampling specially accidental and purposive technique was applied in the collection of primary data through administration of user questionnaire. The sample respondents chosen for the study consists of principle scientific officer, senior scientific officer, scientific officer, and scientific assistant of different division of the laboratories, namely, research and development, pharmaceutical chemistry, pharmacovigilance, pharmacology, pharmacogonosy, and microbiology. The findings of the study reveal the personal experiences and perceptions they have had on practice and research activity using e-resource. The major findings indicate that of the total anticipated participants, 78% indicated that they perceived the ability to use computer for electronic information resources. The data analysis shows that all the scientists belonging to the pharmacopoeial libraries used electronic information resources to address issues relating to drug indexes and compendia, monographs, drugs obtained through online databases, e-journals, and the Internet sources—especially polices by regulatory agencies, contacts, drug promotional literature, and standards.

  6. Eavesdropping on Electronic Guidebooks: Observing Learning Resources in Shared Listening Environments

    OpenAIRE

    Woodruff, Allison; Aoki, Paul M.; Grinter, Rebecca E.; Hurst, Amy; Szymanski, Margaret H.; Thornton, James D.

    2002-01-01

    We describe an electronic guidebook, Sotto Voce, that enables visitors to share audio information by eavesdropping on each other's guidebook activity. We have conducted three studies of visitors using electronic guidebooks in a historic house: one study with open air audio played through speakers and two studies with eavesdropped audio. An analysis of visitor interaction in these studies suggests that eavesdropped audio provides more social and interactive learning resources than open air aud...

  7. Elektronik Bilgi Kaynaklarının Seçimi / Selection of Electronic Information Resources

    Directory of Open Access Journals (Sweden)

    Pınar Al

    2003-04-01

    Full Text Available For many years, library users have used only from the printed media in order to get the information that they have needed. Today with the widespread use of the Web and the addition of electronic information resources to library collections, the use of information in the electronic environment as well as in printed media is started to be used. In time, such types of information resources as, electronic journals, electronic books, electronic encyclopedias, electronic dictionaries and electronic theses have been added to library collections. In this study, selection criteria that can be used for electronic information resources are discussed and suggestions are provided for libraries that try to select electronic information resources for their collections.

  8. The Acquisition and Management of Electronic Resources: Can Use Justify Cost?

    Science.gov (United States)

    Koehn, Shona L.; Hawamdeh, Suliman

    2010-01-01

    As library collections increasingly become digital, libraries are faced with many challenges regarding the acquisition and management of electronic resources. Some of these challenges include copyright and fair use, the first-sale doctrine, licensing versus ownership, digital preservation, long-term archiving, and, most important, the issue of…

  9. Awareness and use of electronic resources at a university campus in ...

    African Journals Online (AJOL)

    This study looks into the use of electronic resources by the faculty members of College of Technology Education, Kumasi of the University of Education, Winneba, Ghana. Sixty-two copies of a questionnaire were sent to the entire faculty and 31 were returned which gave a response rate of 50%. The responses showed very ...

  10. Brand Awareness Strategy: Role of Blackberry Messenger(Case in Sumber Tiket Murah Travel: PIN 2144C41F)

    OpenAIRE

    Pane, Dian; Lestari, Baroroh

    2013-01-01

    The purposes of this research is to explore the role of Blackberry Messenger (BBM) as one of marketingcommunication`s tool by analyzing Sumber Tiket Murah travel strategy in advertising its brand. BBM belongs toBlackberry Smartphone application and nowdays recently used as mobile sales promotion. The level of brandawareness is the output based on four stages e.g recognition, recall, top of mind, brand dominance. It used aqualitative approach using a written interview to gather information thr...

  11. Transcriptomics, Targeted Metabolomics and Gene Expression of Blackberry Leaves and Fruits Indicate Flavonoid Metabolic Flux from Leaf to Red Fruit

    OpenAIRE

    Gutierrez, Enrique; Garc?a-Villaraco, Ana; Lucas, Jos? A.; Gradillas, Ana; Gutierrez-Ma?ero, F. Javier; Ramos-Solano, Beatriz

    2017-01-01

    Blackberries (Rubus spp.) are among the high added value food products relevant for human health due to the increasing evidence of the beneficial effects of polyphenols, which are very abundant in these fruits. Interestingly, these compounds also play a role on plant physiology, being especially relevant their role in plant defense against biotic and abiotic stress. Hence, we hypothesize that since blackberry fruits have high amounts of flavonols and anthocyanins, leaves would also have high ...

  12. Dynamics of Introduced Populations of Phragmidium violaceum and Implications for Biological Control of European Blackberry in Australia▿

    OpenAIRE

    Gomez, D. R.; Evans, K. J.; Baker, J.; Harvey, P. R.; Scott, E. S.

    2008-01-01

    Phragmidium violaceum causes leaf rust on the European blackberry (Rubus fruticosus L. aggregate). Multiple strains of this pathogen have been introduced into southern Australia for the biological control of at least 15 taxa of European blackberry, a nonindigenous, invasive plant. In climates conducive to leaf rust, the intensity of disease varies within and among infestations of the genetically variable host. Genetic markers developed from the selective amplification of microsatellite polymo...

  13. REVIEW OF MOODLE PLUGINS FOR DESIGNING MULTIMEDIA ELECTRONIC EDUCATIONAL RESOURCES FROM LANGUAGE DISCIPLINES

    Directory of Open Access Journals (Sweden)

    Anton M. Avramchuk

    2015-09-01

    Full Text Available Today the problem of designing multimedia electronic educational resources from language disciplines in Moodle is very important. This system has a lot of different, powerful resources, plugins to facilitate the learning of students with language disciplines. This article presents an overview and comparative analysis of the five Moodle plugins for designing multimedia electronic educational resources from language disciplines. There have been considered their key features and functionality in order to choose the best for studying language disciplines in the Moodle. Plugins are compared by a group of experts according to the criteria: efficiency, functionality and easy use. For a comparative analysis of the plugins it is used the analytic hierarchy process.

  14. Effects of the Use of Electronic Human Resource Management (EHRM Within Human Resource Management (HRM Functions at Universities

    Directory of Open Access Journals (Sweden)

    Chux Gervase Iwu

    2016-09-01

    Full Text Available This study set out to examine the effect of e-hrm systems in assisting human resource practitioners to execute their duties and responsibilities. In comparison to developed economies of the world, information technology adoption in sub-Saharan Africa has not been without certain glitches. Some of the factors that are responsible for these include poor need identification, sustainable funding, and insufficient skills. Besides these factors, there is also the issue of change management and users sticking to what they already know. Although, the above factors seem negative, there is strong evidence that information systems such as electronic human resource management present benefits to an organization. To achieve this, a dual research approach was utilized. Literature assisted immensely in both the development of the conceptual framework upon which the study hinged as well as in the development of the questionnaire items. The study also made use of an interview checklist to guide the participants. The findings reveal a mix of responses that indicate that while there are gains in adopting e-hrm systems, it is wiser to consider supporting resources as well as articulate the needs of the university better before any investment is made.

  15. USE OF ELECTRONIC EDUCATIONAL RESOURCES WHEN TRAINING IN WORK WITH SPREADSHEETS

    Directory of Open Access Journals (Sweden)

    Х А Гербеков

    2017-12-01

    Full Text Available Today the tools for maintaining training courses based on opportunities of information and communication technologies are developed. Practically in all directions of preparation and on all subject matters electronic textbook and self-instruction manuals are created. Nevertheless the industry of computer educational and methodical materials actively develops and gets more and more areas of development and introduction. In this regard more and more urgent is a problem of development of the electronic educational resources adequate to modern educational requirements. Creation and the organization of training courses with use of electronic educational resources in particular on the basis of Internet technologies remains a difficult methodical task.In article the questions connected with development of electronic educational resources for use when studying the substantial line “Information technologies” of a school course of informatics in particular for studying of spreadsheets are considered. Also the analysis of maintenance of a school course and the unified state examination from the point of view of representation of task in him corresponding to the substantial line of studying “Information technologies” on mastering technology of information processing in spreadsheets and the methods of visualization given by means of charts and schedules is carried out.

  16. Processing and storage effects on the ellagitannin composition of processed blackberry products.

    Science.gov (United States)

    Hager, Tiffany J; Howard, Luke R; Prior, Ronald L

    2010-11-24

    Changes in blackberry ellagitannin composition in response to juicing (clarified and nonclarified), pureeing, canning (in water or syrup), and freezing as well as changes in processed products during 6 months of storage were investigated. Canning, pureeing, and freezing had little effect on ellagitannins, but processing berries into nonclarified and clarified juices resulted in total ellagitannin losses of 70 and 82%, respectively, due to removal of ellagitannin-rich seeds in the presscake. Minimal changes in total ellagitannin content were observed during storage of thermally processed products, but compositional changes indicative of ellagitannin depolymerization were apparent. The ellagitannin content and composition of frozen berries remained stable over 6 months of storage. Ellagitannins are well retained in canned, pureed, and frozen blackberries, but methods are needed to prevent losses during juice processing and/or exploit the ellagitannin-rich coproducts.

  17. Directions of use of electronic resources at training to computer science of students of a teacher training college

    OpenAIRE

    Светлана Анатольева Баженова

    2009-01-01

    Article is devoted questions of use of electronic resources at training to computer science in a teacher training college, principles of pedagogical expediency of use of electronic resources at training are specified computer science and positive aspects of such use for different forms of work of the student and the teacher are allocated.

  18. Availability, Level of Use and Constraints to Use of Electronic Resources by Law Lecturers in Public Universities in Nigeria

    Science.gov (United States)

    Amusa, Oyintola Isiaka; Atinmo, Morayo

    2016-01-01

    (Purpose) This study surveyed the level of availability, use and constraints to use of electronic resources among law lecturers in Nigeria. (Methodology) Five hundred and fifty-two law lecturers were surveyed and four hundred and forty-two responded. (Results) Data analysis revealed that the level of availability of electronic resources for the…

  19. Phytosynthesis and photocatalytic activity of magnetite (Fe{sub 3}O{sub 4}) nanoparticles using the Andean blackberry leaf

    Energy Technology Data Exchange (ETDEWEB)

    Kumar, Brajesh, E-mail: krmbraj@gmail.com [Centro de Nanociencia y Nanotecnologia, Universidad de las Fuerzas Armadas ESPE, Av. Gral. Rumiñahui s/n, Sangolqui, P.O. BOX 171-5-231B (Ecuador); Department of Chemistry, TATA College, Kolhan University, Chaibasa, 833202, Jharkhand (India); Smita, Kumari; Cumbal, Luis; Debut, Alexis [Centro de Nanociencia y Nanotecnologia, Universidad de las Fuerzas Armadas ESPE, Av. Gral. Rumiñahui s/n, Sangolqui, P.O. BOX 171-5-231B (Ecuador); Galeas, Salome; Guerrero, Victor H. [Laboratorio de Nuevos Materiales, Departamento de Materiales, Escuela Politécnica Nacional, Quito (Ecuador)

    2016-08-15

    In the present study, a simple, low cost, and ecofriendly synthesis of magnetite nanoparticles (Fe{sub 3}O{sub 4} NPs) has been developed using Andean blackberry leaf extract. UV–vis spectroscopy technique were used to study the initial formation of Fe{sub 3}O{sub 4} NPs. Morphology, crystallinity and surface properties of nanoparticles were studied using transmission electron microscopy (TEM), Dynamic light scattering (DLS), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR) and Thermal gravimetric (TG) techniques. TEM and DLS characterization indicated the formation of spherical Fe{sub 3}O{sub 4} NPs of average size 54.5 ± 24.6 nm. XRD and FTIR studies confirmed the existence of the cubic spinel phase of Fe{sub 3}O{sub 4} NPs and Fe−O peak at 570 cm{sup −1}, whereas TG analysis indicated that the nanoparticles contain 94% metal and 6% capping ligand. It has been observed that, as-synthesized Fe{sub 3}O{sub 4} NPs exhibited photocatalytic activity for degradation of organic dyes such as methylene blue (k = 0.0105475 min{sup −1}), congo red (k = 0.0043240 min{sup −1}), and methyl orange (k = 0.0028930 min{sup −1}), efficiently. The antioxidant activity of Fe{sub 3}O{sub 4} NPs against 1, 1-diphenyl-2-picrylhydrazyl were also evaluated. - Highlights: • We report extracellular phytosynthesis of Fe{sub 3}O{sub 4} nanoparticles using the Andean blackberry leaf. • The synthesized Fe{sub 3}O{sub 4} nanoparticles are spherical and average size is 54.5 ± 24.6 nm. • It showed enhanced photocatalytic activity and weak antioxidant efficacy. • Environmentally benign, non-toxic and cost-effective method is suggested.

  20. Influence of Pectolytic Enzymes and Selected Yeast Strains on the Chemical Composition of Blackberry Wines

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    Tomić Antonija

    2018-09-01

    Full Text Available The aim of this study was to determine concentrations of individual o rganic acids, polyphenolic and aromatic compounds in blackberry wine, and to define the influence of different yeast strains (Uvaferm BDX and Lalvin 71B and pectolytic enzymes (L allzyme OE and Lallzyme EX-V on the chemical composition and quality of the wine. Blackberry wines were produced in five variants, depending on yeasts and enzymes used: BDX OE, BDX EX-V, 71B OE, 71B EX-V, and Control without the addition of selected yeasts and enzymes. All blackberry wine variants were defined by a relatively high sum of organic acids. The citric acid was the predominant one, which concentrations ranged from 5.42 to 7.31 g/L. The concentration of gallic acid ranged from 19 to 37 mg/L and was in dependence of the yeast strain used. The concentration of procyanidin B2 which was the predominant flavan-3-ol compound, ranged from 103 to 117 mg/L, and there were no significant differences between individual wine variants in the experiment. Rutin is the predominant compound in the flavonol group, followed by quercetin-3-O-glucoside. The predominant one among the anthocyanins was cyanidin-3-O-glucoside whose concentrations ranged from 134 to 229 mg/L. According to the obtained results, the yeast strain and pectolytic enzymes had a significant impact on the concentration of individual anthocyanins in the analyzed wines. The predominant group of aromatic compounds was monoterpenes, among which linalool was the most prominent in all of blackberry wine variants, except in Control.

  1. Analisis Hubungan Bauran Pemasaran terhadap Keputusan Pembelian Smartphone Blackberry dan Samsung Android

    Directory of Open Access Journals (Sweden)

    Alizar Hasan

    2016-04-01

    Perkembangan teknologi menyebabkan seluruh perusahaan terus meningkatkan inovasiinovasi dalam menciptakan produk yang dihasilkannya, termasuk pada industri telepon. Pada beberapa tahun belakangan ini industri telepon memperkenalkan teleponsmartphone yang beragam, diantaranya smartphone yang berbasis sistem operasi RIM (Research in Motion yang memproduksi telepon bermerek Blackberry dan smartphone yang berbasis sistem operasi Android dengan salah satu perusahaan yang telah bergabung dengan sistem operasi tersebut adalah Samsung Android. Penelitian ini dilakukan dengan melakukan pengukuran kepada konsumen berdasarkan bauran pemasaran dan diharapkan mampu menjelaskan faktor-faktor apa saja yang berhubungan dengan penjualan di antara kedua smartphone ini. Bauran pemasaran (marketing mix adalah seperangkat alat pemasaran yang digunakan perusahaan secara terus menerus untuk mencapai tujuan pemasarannya. Alat pemasaran tersebut di klasifikasikan menjadi empat kelompok yang dikenal 4P yaitu: produk, harga, tempat, dan promosi. Penelitian dilakukan dengan menyebarkan kuesioner sebanyak 160 buah kepada responden smartphone Blackberry dan 160 buah kepada responden smartphone Samsung Android. Pengujian dilakukan dengan uji korelasi Kendall Tau menggunakan software SPSS 15. Hasil penelitian menunjukkan bahwa variabel produk, harga dan promosi mempunyai korelasi yang signifikan terhadap keputusan pembelian konsumen terhadap smartphone Blackberry. Namun variabel harga menjadi variabel yang sangat dominan berhubungan dengan keputusan pembelian konsumen terhadap smartphone Blackberry. Sementara itu pada pengujian uji korelasi Kendall Tau pada smartphone Samsung Android, hanya variabel produk dan harga yang mempunyai korelasi yang signifikan terhadap keputusan pembelian konsumen terhadap smartphone Samsung Android, dan variabel produk menjadi variabel yang sangat dominan berhubungan dengan keputusan pembelian konsumen. Dengan demikian dapat dilakukan strategi

  2. Pengaruh Karakteristik Merek, Diferensiasi Produk, Kepercayaan Merek Terhadap Loyalitas Merek Telepon Seluler Blackberry

    OpenAIRE

    Syafi'i, Abdullah; Lubis, Nawazirul; Nurseto, Sendhang

    2014-01-01

    Trust in brand became the basis of the creation of the customer's brand loyalty considering problems brand to be one of the issues that should be monitored constantly by each company. Increasingly fierce competition and growing customer expectations Blackberry encourage companies to focus more on efforts to retain existing customers, through increased consumer loyalty to the brand. The increase in consumer brand loyalty is influenced by many factors, including brand characteristics, product ...

  3. Antioxidant Properties of ?Natchez? and ?Triple Crown? Blackberries Using Korean Traditional Winemaking Techniques

    OpenAIRE

    Joh, Youri; Maness, Niels; McGlynn, William

    2017-01-01

    This research evaluated blackberries grown in Oklahoma and wines produced using a modified traditional Korean technique employing relatively oxygen-permeable earthenware fermentation vessels. The fermentation variables were temperature (21.6°C versus 26.6°C) and yeast inoculation versus wild fermentation. Wild fermented wines had higher total phenolic concentration than yeast fermented wines. Overall, wines had a relatively high concentration of anthocyanin (85–320 mg L−1 malvidin-3-monogluco...

  4. Importance and Use of Morphological Characteristics of Blackberry (Vaccinium corymbosum L. in the Course of DUS

    Directory of Open Access Journals (Sweden)

    Л. І. Улич

    2011-07-01

    Full Text Available The article offers results of research on morphological characteristics and biological properties of blackberry, their inheritance, as well as stability and variability under the influence of agro-ecological conditions and stress factors of the environment with a view of recognizing, describing and identifying varieties undergoing official research and technical examination on DUS, which also could be used in the breeding process.

  5. Analisis Hubungan Bauran Pemasaran terhadap Keputusan Pembelian Smartphone Blackberry dan Samsung Android

    OpenAIRE

    Alizar Hasan; Yumi Meuthia; Berry Yuliandra; Indah Desfita

    2016-01-01

    Technological developments lead to the entire company continues to enhance innovation in creating products derived from it, including the telephone industry.In a few years, the telephone industry introduced a variety of smartphone, including smartphones based on operating system RIM (Research in Motion) which produces branded Blackberry and smartphone based Android operating system with one of the companies that have joined with the operating system is Samsung Android. The research was conduc...

  6. Analisis Hubungan Bauran Pemasaran Terhadap Keputusan Pembelian Smartphone Blackberry Dan Samsung Android

    OpenAIRE

    Hasan, Alizar; Meuthia, Yumi; Yuliandra, Berry; Desfita, Indah

    2014-01-01

    Technological developments lead to the entire company continues to enhance innovation in creating products derived from it, including the telephone industry.In a few years, the telephone industry introduced a variety of smartphone, including smartphones based on operating system RIM (Research in Motion) which produces branded Blackberry and smartphone based Android operating system with one of the companies that have joined with the operating system is Samsung Android. The research was conduc...

  7. EVALUATION OF ANTIMICROBIAL AND ANTIOXIDANT ACTIVITY OF LEAF TEAS BLACKBERRY (MORUS NIGRA

    Directory of Open Access Journals (Sweden)

    P. Zanco

    2017-02-01

    Full Text Available Brazil has a long tradition in the use of plants, and is the same used in different ways, such as in the form of infusions and decoctions, for therapeutic purposes. Morus nigra species is a plant that has been used in different parts of the world as phytotherapy. This plant is known as mulberry, black, blackberry black or blackberry and various parts of the plant, such as leaves, fruit, bark and roots are used by the population, demonstrating anti-inflammatory activity, antioxidant, hypoglycemic, antimicrobial, among others. Because of the interest in research on the bioactivity of plant products and use of blackberry tea in the population, present study evaluated the antibacterial activity of teas M. nigra leaves obtained by infusion and decoction against Staphylococcus aureus, Escherichia coli, Pseudomonas aeruginosa and Salmonella typhimurium, as well as the antioxidant potential of preparations by DPPH technique. Results revealed that the infusions and decoctions prepared with Morus nigra leaves showed no ability to inhibit the growth of bacteria tested. However, all preparations (decoctions and infusions obtained from the leaves showed antioxidant potential, demonstrated ability to reduce DPPH radical. Despite infusions and decoctions evaluated in this study do not show antimicrobial activity, both had significant antioxidant property. Considering the use of different plants, including mulberry tree, by the people, it is considered always important proof of their biological activities.

  8. Distribution of volatile composition in 'marion' ( rubus species hyb) blackberry pedigree.

    Science.gov (United States)

    Du, Xiaofen; Finn, Chad; Qian, Michael C

    2010-02-10

    The distribution of volatile constituents in ancestral genotypes of 'Marion' blackberry's pedigree was investigated over two growing seasons. Each genotype in the pedigree had a specific volatile composition. Red raspberry was dominated by norisoprenoids, lactones, and acids. 'Logan' and 'Olallie' also had a norisoprenoid dominance but at much lower concentrations. The concentration of norisoprenoids in other blackberry genotypes was significantly lower. Terpenes and furanones were predominant in wild 'Himalaya' blackberry, whereas terpenes were the major volatiles in 'Santiam'. 'Marion', a selection from 'Chehalem' and 'Olallie', contained almost all of the volatile compounds in its pedigree at moderate amount. The chiral isomeric ratios of 11 pairs of compounds were also studied. Strong chiral isomeric preference was observed for most of the chiral compounds, and each cultivar had its unique chiral isomeric distribution. An inherent pattern was observed for some volatile compounds in the 'Marion' pedigree. Raspberry and 'Logan' had a very high concentration of beta-ionone, but was reduced by half in 'Olallie' and by another half in 'Marion' as the crossing proceeded. A high content of linalool in 'Olallie' and a low content in 'Chehalem' resulted in a moderate content of linalool in their progeny 'Marion'. However, the concentration of furaneol in 'Marion' was higher than in its parents. A high content of (S)-linalool in 'Olallie' and a racemic content of (S)-,(R)-linalool in 'Chehalem' resulted in a preference for the (S)-form in 'Marion'.

  9. Effect of Calcium Chloride Treatments on Quality Characteristics of Blackberry, Raspberry and Strawberry Fruits After Cold Storage

    Directory of Open Access Journals (Sweden)

    Tamar Turmanidze

    2016-12-01

    Full Text Available Post-harvested blackberry, raspberry and strawberry fruits were immediately treated with 1% and 2% calcium chloride by immersion at 20 ± 1°C for 2.5 min and kept for 8 days at 0 ± 0.5°C and relative humidity (RH 90 ± 5%. The application of calcium did not significantly effect on total titratable acidity, pH and total soluble solids. Maximum weight lost was observed for untreated berries and minimum lost was observed for fruits treated with 2% calcium chloride. After storage, ascorbic acid content was significantly higher in samples of blackberry, raspberry and strawberry fruits subjected to 2% calcium chloride dip. Treatment of blackberry, raspberry and strawberry fruits with calcium chloride had a positive effect on retention of total polyphenols content during the storage period. Depletion of antioxidant capacity of untreated fresh blackberry fruits during 8 days cold storage was 25%; raspberries and strawberries - 34 and 26 % respectively. Whereas depletion of antioxidant activity in the 2% calcium chloride treated samples of these fruits was 8, 22 and 11% respectively. In case of storage of untreated blackberry fruits content of cyanidin-3-O-monoglucoside decreased by 6.33 mg per 100 g of fruit. While, in fruit samples treated with 1 and 2% calcium chloride content of cyanidin-3-O-monoglucoside decreased by 32.06 and 11.35 mg per 100 g of fruit, respectively. Content of pelargonidin 3–O- monoglucoside increased by 2.29 mg per 100 g of the untreated blackberry fruits and by 26.87 and 8.45 mg per 100 g of fruits treated with 1 and 2% calcium chloride respectively. Change of content of cyanidin 3–O- (6 - p – coumaroyl - glucoside in blackberry fruits was not statistically significant.

  10. A systematic review of portable electronic technology for health education in resource-limited settings.

    Science.gov (United States)

    McHenry, Megan S; Fischer, Lydia J; Chun, Yeona; Vreeman, Rachel C

    2017-08-01

    The objective of this study is to conduct a systematic review of the literature of how portable electronic technologies with offline functionality are perceived and used to provide health education in resource-limited settings. Three reviewers evaluated articles and performed a bibliography search to identify studies describing health education delivered by portable electronic device with offline functionality in low- or middle-income countries. Data extracted included: study population; study design and type of analysis; type of technology used; method of use; setting of technology use; impact on caregivers, patients, or overall health outcomes; and reported limitations. Searches yielded 5514 unique titles. Out of 75 critically reviewed full-text articles, 10 met inclusion criteria. Study locations included Botswana, Peru, Kenya, Thailand, Nigeria, India, Ghana, and Tanzania. Topics addressed included: development of healthcare worker training modules, clinical decision support tools, patient education tools, perceptions and usability of portable electronic technology, and comparisons of technologies and/or mobile applications. Studies primarily looked at the assessment of developed educational modules on trainee health knowledge, perceptions and usability of technology, and comparisons of technologies. Overall, studies reported positive results for portable electronic device-based health education, frequently reporting increased provider/patient knowledge, improved patient outcomes in both quality of care and management, increased provider comfort level with technology, and an environment characterized by increased levels of technology-based, informal learning situations. Negative assessments included high investment costs, lack of technical support, and fear of device theft. While the research is limited, portable electronic educational resources present promising avenues to increase access to effective health education in resource-limited settings, contingent

  11. Model of e-learning with electronic educational resources of new generation

    Directory of Open Access Journals (Sweden)

    A. V. Loban

    2017-01-01

    Full Text Available Purpose of the article: improving of scientific and methodical base of the theory of the е-learning of variability. Methods used: conceptual and logical modeling of the е-learning of variability process with electronic educational resource of new generation and system analysis of the interconnection of the studied subject area, methods, didactics approaches and information and communication technologies means. Results: the formalization complex model of the е-learning of variability with electronic educational resource of new generation is developed, conditionally decomposed into three basic components: the formalization model of the course in the form of the thesaurusclassifier (“Author of e-resource”, the model of learning as management (“Coordination. Consultation. Control”, the learning model with the thesaurus-classifier (“Student”. Model “Author of e-resource” allows the student to achieve completeness, high degree of didactic elaboration and structuring of the studied material in triples of variants: modules of education information, practical task and control tasks; the result of the student’s (author’s of e-resource activity is the thesaurus-classifier. Model of learning as management is based on the principle of personal orientation of learning in computer environment and determines the logic of interaction between the lecturer and the student when determining the triple of variants individually for each student; organization of a dialogue between the lecturer and the student for consulting purposes; personal control of the student’s success (report generation and iterative search for the concept of the class assignment in the thesaurus-classifier before acquiring the required level of training. Model “Student” makes it possible to concretize the learning tasks in relation to the personality of the student and to the training level achieved; the assumption of the lecturer about the level of training of a

  12. [Characteristics of the composition of Caucasian blackberry (Rubus caucasicus L.) leaves as a raw material for tea production].

    Science.gov (United States)

    Melkadze, R G; Chichkovani, N Sh; Kakhniashvili, E Z

    2008-01-01

    The composition of Caucasian blackberry (Rubus caucasicus L.) six-leaf shoot was studied. The weight of the stem reached 50% of the total weight of the shoot. The content of moisture, extractive substances, and phenolic compounds was minimal at the beginning and end of the vegetation season. Phenolic compounds were represented by catechins, leukoanthocyanidins, and flavonols. The most abundant phenolic compounds in all parts of the blackberry shoot were leukoanthocyanidins, which accounted for approximately 50% of all compounds of this class. Phenolic compounds accumulated most actively in July and August. The average content of free amino acids in the blackberry leaf during the vegetation season was 26.68 mg/g. Among the total free amino acids, eleven have been identified, five of which proved to be essential (His, Arg, Met, Leu, Val) and accounted for 40% of the total amount of amino acids. The oxidability of acetone extract of the blackberry leaf was compared to the oxidability of total phenolic compounds and tea tannin. The tea product obtained from the blackberry leaf had good organoleptic parameters and a saturated extractive complex.

  13. Review of material recovery from used electric and electronic equipment-alternative options for resource conservation.

    Science.gov (United States)

    Friege, Henning

    2012-09-01

    For waste from electric and electronic equipment, the WEEE Directive stipulates the separate collection of electric and electronic waste. As to new electric and electronic devices, the Restriction of Hazardous Substances (RoHS) Directive bans the use of certain chemicals dangerous for man and environment. From the implementation of the WEEE directive, many unsolved problems have been documented: poor collection success, emission of dangerous substances during collection and recycling, irretrievable loss of valuable metals among others. As to RoHS, data from the literature show a satisfying success. The problems identified in the process can be reduced to some basic dilemmas at the borders between waste management, product policy and chemical safety. The objectives of the WEEE Directive and the specific targets for use and recycling of appliances are not consistent. There is no focus on scarce resources. Extended producer responsibility is not sufficient to guarantee sustainable waste management. Waste management reaches its limits due to problems of implementation but also due to physical laws. A holistic approach is necessary looking at all branch points and sinks in the stream of used products and waste from electric and electronic equipment. This may be done with respect to the general rules for sustainable management of material streams covering the three dimensions of sustainable policy. The relationships between the players in the field of electric and electronic devices have to be taken into account. Most of the problems identified in the implementation process will not be solved by the current amendment of the WEEE Directive.

  14. [Use of internet and electronic resources among Spanish intensivist physicians. First national survey].

    Science.gov (United States)

    Gómez-Tello, V; Latour-Pérez, J; Añón Elizalde, J M; Palencia-Herrejón, E; Díaz-Alersi, R; De Lucas-García, N

    2006-01-01

    Estimate knowledge and use habits of different electronic resources in a sample of Spanish intensivists: Internet, E-mail, distribution lists, and use of portable electronic devices. Self-applied questionnaire. A 50-question questionnaire was distributed among Spanish intensivists through the hospital marketing delegates of a pharmaceutical company and of electronic forums. A total of 682 questionnaires were analyzed (participation: 74%). Ninety six percent of those surveyed used Internet individually: 67% admitted training gap. Internet was the second source of clinical consultations most used (61%), slightly behind consultation to colleagues (65%). The pages consulted most were bibliographic databases (65%) and electronic professional journals (63%), with limited use of Evidence Based Medicine pages (19%). Ninety percent of those surveyed used e-mail regularly in the practice of their profession, although 25% admitted that were not aware of its possibilities. The use of E-mail decreased significantly with increase in age. A total of 62% of the intensivists used distribution lists. Of the rest, 42% were not aware of its existence and 32% admitted they had insufficient training to handle them. Twenty percent of those surveyed had portable electronic devices and 64% considered it useful, basically due to its rapid consultation at bedside. Female gender was a negative predictive factor of its use (OR 0.35; 95% CI 0.2-0.63; p=0.0002). A large majority of the Spanish intensivists use Internet and E-mail. E-mail lists and use of portable devices are still underused resources. There are important gaps in training and infrequent use of essential pages. There are specific groups that require directed educational policies.

  15. Blackberry wines mineral and heavy metal content determination after dry ashing: multivariate data analysis as a tool for fruit wine quality control.

    Science.gov (United States)

    Amidžić Klarić, Daniela; Klarić, Ilija; Mornar, Ana; Velić, Darko; Velić, Natalija

    2015-08-01

    This study brings out the data on the content of 21 mineral and heavy metal in 15 blackberry wines made of conventionally and organically grown blackberries. The objective of this study was to classify the blackberry wine samples based on their mineral composition and the applied cultivation method of the starting raw material by using chemometric analysis. The metal content of Croatian blackberry wine samples was determined by AAS after dry ashing. The comparison between an organic and conventional group of investigated blackberry wines showed statistically significant difference in concentrations of Si and Li, where the organic group contained higher concentrations of these compounds. According to multivariate data analysis, the model based on the original metal content data set finally included seven original variables (K, Fe, Mn, Cu, Ba, Cd and Cr) and gave a satisfactory separation of two applied cultivation methods of the starting raw material.

  16. Comparing Electronic Human Resource Management Systems Efficiency In Production Organization amp Service Organizations

    Directory of Open Access Journals (Sweden)

    Ali Hadian

    2015-08-01

    Full Text Available Today the organizations used information technology in performing human resource department affairs and this is called as electronic human resource management EHRM. In fact as the competitive complexity increases the need for implementing EHRM in production and service businesses increases too. This paper is written in order to specify the importance of implementing EHRM in production and service organizations and also to evaluate efficiency rate and the importance degree in these two ones. In this paper first the topics literature and the most important aspects of implementing these systems will be reviewed and after categorizing these views the hierarchal model will be proposed by applying AHP method. The result of analyzing this model by EXPERT CHOICE software shows that implementing EHRM in both kinds of organizations has the same importance however there is a large difference between them in implementing aspects.

  17. The Synthesis of the Hierarchical Structure of Information Resources for Management of Electronic Commerce Entities

    Directory of Open Access Journals (Sweden)

    Krutova Anzhelika S.

    2017-06-01

    Full Text Available The aim of the article is to develop the theoretical bases for the classification and coding of economic information and the scientific justification of the content of information resources of an electronic commerce enterprise. The essence of information resources for management of electronic business entities is investigated. It is proved that the organization of accounting in e-commerce systems is advisable to be built on the basis of two circuits: accounting for financial flows and accounting associated with transformation of business factors in products and services as a result of production activities. There presented a sequence of accounting organization that allows to combine the both circuits in a single information system, which provides a possibility for the integrated replenishment and distributed simultaneous use of the e-commerce system by all groups of users. It is proved that the guarantee of efficient activity of the information management system of electronic commerce entities is a proper systematization of the aggregate of information resources on economic facts and operations of an enterprise in accordance with the management tasks by building the hierarchy of accounting nomenclatures. It is suggested to understand nomenclature as an objective, primary information aggregate concerning a certain fact of the economic activity of an enterprise, which is characterized by minimum requisites, is entered into the database of the information system and is to be reflected in the accounting system. It is proposed to build a database of e-commerce systems as a part of directories (constants, personnel, goods / products, suppliers, buyers and the hierarchy of accounting nomenclatures. The package of documents regulating the organization of accounting at an enterprise should include: the provision on the accounting services, the order on the accounting policy, the job descriptions, the schedules of information exchange, the report card and

  18. THE MODEL OF LINGUISTIC TEACHERS’ COMPETENCY DEVELOPMENT ON DESIGNING MULTIMEDIA ELECTRONIC EDUCATIONAL RESOURCES IN THE MOODLE SYSTEM

    Directory of Open Access Journals (Sweden)

    Anton M. Avramchuk

    2017-10-01

    Full Text Available The article is devoted to the problem of developing the competency of teachers of language disciplines on designing multimedia electronic educational resources in the Moodle system. The concept of "the competence of teachers of language disciplines on designing multimedia electronic educational resources in the Moodle system" is justified and defined. Identified and characterized the components by which the levels of the competency development of teachers of language disciplines on designing multimedia electronic educational resources in the Moodle system should be assessed. Developed a model for the development of the competency of teachers of language disciplines on designing multimedia electronic educational resources in the Moodle system, which is based on the main scientific approaches, used in adult education, and consists of five blocks: target, informative, technological, diagnostic and effective.

  19. Open-Source Electronic Health Record Systems for Low-Resource Settings: Systematic Review.

    Science.gov (United States)

    Syzdykova, Assel; Malta, André; Zolfo, Maria; Diro, Ermias; Oliveira, José Luis

    2017-11-13

    Despite the great impact of information and communication technologies on clinical practice and on the quality of health services, this trend has been almost exclusive to developed countries, whereas countries with poor resources suffer from many economic and social issues that have hindered the real benefits of electronic health (eHealth) tools. As a component of eHealth systems, electronic health records (EHRs) play a fundamental role in patient management and effective medical care services. Thus, the adoption of EHRs in regions with a lack of infrastructure, untrained staff, and ill-equipped health care providers is an important task. However, the main barrier to adopting EHR software in low- and middle-income countries is the cost of its purchase and maintenance, which highlights the open-source approach as a good solution for these underserved areas. The aim of this study was to conduct a systematic review of open-source EHR systems based on the requirements and limitations of low-resource settings. First, we reviewed existing literature on the comparison of available open-source solutions. In close collaboration with the University of Gondar Hospital, Ethiopia, we identified common limitations in poor resource environments and also the main requirements that EHRs should support. Then, we extensively evaluated the current open-source EHR solutions, discussing their strengths and weaknesses, and their appropriateness to fulfill a predefined set of features relevant for low-resource settings. The evaluation methodology allowed assessment of several key aspects of available solutions that are as follows: (1) integrated applications, (2) configurable reports, (3) custom reports, (4) custom forms, (5) interoperability, (6) coding systems, (7) authentication methods, (8) patient portal, (9) access control model, (10) cryptographic features, (11) flexible data model, (12) offline support, (13) native client, (14) Web client,(15) other clients, (16) code

  20. A preliminary categorization of end-of-life electrical and electronic equipment as secondary metal resources

    International Nuclear Information System (INIS)

    Oguchi, Masahiro; Murakami, Shinsuke; Sakanakura, Hirofumi; Kida, Akiko; Kameya, Takashi

    2011-01-01

    Highlights: → End-of-life electrical and electronic equipment (EEE) as secondary metal resources. → The content and the total amount of metals in specific equipment are both important. → We categorized 21 EEE types from contents and total amounts of various metals. → Important equipment types as secondary resources were listed for each metal kind. → Collectability and possible collection systems of various EEE types were discussed. - Abstract: End-of-life electrical and electronic equipment (EEE) has recently received attention as a secondary source of metals. This study examined characteristics of end-of-life EEE as secondary metal resources to consider efficient collection and metal recovery systems according to the specific metals and types of EEE. We constructed an analogy between natural resource development and metal recovery from end-of-life EEE and found that metal content and total annual amount of metal contained in each type of end-of-life EEE should be considered in secondary resource development, as well as the collectability of the end-of-life products. We then categorized 21 EEE types into five groups and discussed their potential as secondary metal resources. Refrigerators, washing machines, air conditioners, and CRT TVs were evaluated as the most important sources of common metals, and personal computers, mobile phones, and video games were evaluated as the most important sources of precious metals. Several types of small digital equipment were also identified as important sources of precious metals; however, mid-size information and communication technology (ICT) equipment (e.g., printers and fax machines) and audio/video equipment were shown to be more important as a source of a variety of less common metals. The physical collectability of each type of EEE was roughly characterized by unit size and number of end-of-life products generated annually. Current collection systems in Japan were examined and potentially appropriate collection

  1. Determining the level of awareness of the physicians in using the variety of electronic information resources and the effecting factors.

    Science.gov (United States)

    Papi, Ahmad; Ghazavi, Roghayeh; Moradi, Salimeh

    2015-01-01

    Understanding of the medical society's from the types of information resources for quick and easy access to information is an imperative task in medical researches and management of the treatment. The present study was aimed to determine the level of awareness of the physicians in using various electronic information resources and the factors affecting it. This study was a descriptive survey. The data collection tool was a researcher-made questionnaire. The study population included all the physicians and specialty physicians of the teaching hospitals affiliated to Isfahan University of Medical Sciences and numbered 350. The sample size based on Morgan's formula was set at 180. The content validity of the tool was confirmed by the library and information professionals and the reliability was 95%. Descriptive statistics were used including the SPSS software version 19. On reviewing the need of the physicians to obtain the information on several occasions, the need for information in conducting the researches was reported by the maximum number of physicians (91.9%) and the usage of information resources, especially the electronic resources, formed 65.4% as the highest rate with regard to meeting the information needs of the physicians. Among the electronic information databases, the maximum awareness was related to Medline with 86.5%. Among the various electronic information resources, the highest awareness (43.3%) was related to the E-journals. The highest usage (36%) was also from the same source. The studied physicians considered the most effective deterrent in the use of electronic information resources as being too busy and lack of time. Despite the importance of electronic information resources for the physician's community, there was no comprehensive knowledge of these resources. This can lead to less usage of these resources. Therefore, careful planning is necessary in the hospital libraries in order to introduce the facilities and full capabilities of the

  2. Effect of two organic fertilizers on food webs of soil cultivated with blackberry

    Directory of Open Access Journals (Sweden)

    Martha Orozco Aceves

    2017-09-01

    Full Text Available Soil fertilization with organic fertilizers comprises a practice that improves the soil biological properties; however, the effect of these on the soil food web (SFW has been scarcely studied. The aim of this study was to determine the effect of two commercial organic fertilizers on the structure of the SFW associated with roots of blackberry plants (Rubus adenotrichos. The research was conducted in two blackberry plantations located one in San Martín de León Cortés, and the other one in Buena Vista de Pérez Zeledón in San José, Costa Rica, from August to December, 2010. In the two plantations, plants were fertilized with compost or vermicompost. The roots of blackberry plants surrounding soil were sampled in order to quantify groups of the SFW through the following techniques: bacteria and filamentous fungi by plate count, protozoa by the most probable number, spores from arbuscular mycorrhizal fungi and nematodes by flotation-centrifugation, microarthropods, macroarthropods, and worms were directly counted in soil samples. The dataset was analyzed by multidimensional scaling analysis. The addition of organic fertilizers to soil caused a differential effect on the structure of the SFW (as compared with non-fertilized soils. The effect differed in soil from each of the experimental plantations according to fertilizer type. The groups of organisms mainly affected were actinomycetes and protozoa, which implies that the structure of SFW and consequently, the function of soil were not affected by the addition of organic fertilizers.

  3. Pro Smartphone Cross-Platform Development IPhone, Blackberry, Windows Mobile, and Android Development and Distribution

    CERN Document Server

    Allen, Sarah; Lundrigan, Lee

    2010-01-01

    Learn the theory behind cross-platform development, and put the theory into practice with code using the invaluable information presented in this book. With in-depth coverage of development and distribution techniques for iPhone, BlackBerry, Windows Mobile, and Android, you'll learn the native approach to working with each of these platforms. With detailed coverage of emerging frameworks like PhoneGap and Rhomobile, you'll learn the art of creating applications that will run across all devices. You'll also be introduced to the code-signing process and the distribution of applications through t

  4. Organogenesis in vitro from the leaf of blackberry cv Čačanska bestrna

    OpenAIRE

    Lazić Tatjana; Ružić Đurđina

    2007-01-01

    The paper presents evaluation of different types and concentrations of plant growth regulators on induction of adventitious organogenesis from the leaf of blackberry cultivar Čačanska Bestrna. This genotype was introduced and maintained in tissue culture on Murashige and Skoog medium (MS) (1962), mineral salts and organic complex with in mg l-1: BAP 1.0, IBA 0.1, GA3 0.1. Young, expanded leaves taken from upper third of in vitro proliferating shoots were used as initial explants. The leaves w...

  5. Resource conservation approached with an appropriate collection and upgrade-remanufacturing for used electronic products.

    Science.gov (United States)

    Zlamparet, Gabriel I; Tan, Quanyin; Stevels, A B; Li, Jinhui

    2018-03-01

    This comparative research represents an example for a better conservation of resources by reducing the amount of waste (kg) and providing it more value under the umbrella of remanufacturing. The three discussed cases will expose three issues already addressed separately in the literature. The generation of waste electrical and electronic equipment (WEEE) interacts with the environmental depletion. In this article, we gave the examples of addressed issues under the concept of remanufacturing. Online collection opportunity eliminating classical collection, a business to business (B2B) implementation for remanufactured servers and medical devices. The material reuse (recycling), component sustainability, reuse (part harvesting), product reuse (after repair/remanufacturing) indicates the recovery potential using remanufacturing tool for a better conservation of resources adding more value to the products. Our findings can provide an overview of new system organization for the general collection, market potential and the technological advantages using remanufacturing instead of recycling of WEEE or used electrical and electronic equipment. Copyright © 2017. Published by Elsevier Ltd.

  6. Use of Electronic Resources by M.Sc. Chemistry Students at Arts Science and Commerce College Chopda Dist-Jalgaon

    OpenAIRE

    Dr.Paithankar Rajeev; R., Mr.Kamble V.R.

    2017-01-01

    The libraries and information services has been changed due to the development of information and communication technology. Electronics resources role is very important as information repositories are use of information for various purposes like academic, research, teaching and learning process. E-resources gives solutions of the traditional libraries as like all data storage in digital format, users can access library without boundaries through internet so e-resources popularity is very cont...

  7. Making the Right Connections: Perceptions of Human Resource/Personnel Directors Concerning Electronic Job-Search Methods.

    Science.gov (United States)

    Hubbard, Joan C.; North, Alexa B.; Arjomand, H. Lari

    1997-01-01

    Examines methods used to search for entry-level managerial positions and assesses how human resource and personnel directors in Georgia perceive these methods. Findings indicate that few of the directors use electronic technology to fill such positions, but they view positively those applicants who use electronic job searching methods. (RJM)

  8. From Millennium ERM to Proquest 360 Resource Manager: Implementing a new Electronic Resources Management System ERMS in an International Graduate Research University in Saudi Arabia

    KAUST Repository

    Ramli, Rindra M.

    2017-05-17

    An overview of the Recommendation Study and the subsequent Implementation of a new Electronic Resources Management system ERMS in an international graduate research university in the Kingdom of Saudi Arabia. It covers the timeline, deliverables and challenges as well as lessons learnt by the Project Team.

  9. Factors of Consumer Behavior That Affect Purchasing Decisions on Blackberry Smartphone

    Directory of Open Access Journals (Sweden)

    Muhammad Tony Nawawi

    2016-03-01

    Full Text Available This study aimed to determine factors of consumer behavior that affect to purchasing decision on BlackBerry Smartphone with the case study in Faculty of Economics, Tarumanagara University, Jakarta. The population was all students of faculty of economics who used or were familiar with the BlackBerry brand mobile phone, with a sampling technique used was purposive random sampling and samples were taken by 200 students. The purpose of the study was to examine and analyze some factors that affect students in the decision to buy BlackBerry mobile phone brands and know the dominant factors that influence the purchase decision. Theanalysis used the method of multiple regression analysis and hypothesis testing and also testing conducted validity and reliability by using the help of SPSS (Statistical Program for the Science Society. The analysis shows that there is significant positive effect between the factors of cultural, social, personal, and psychological effect on purchasing decisions, with significance 0,000 < 0,05, and Adjusted R Square is worth 0,216, it means that 21,6% of purchase decisions are influenced by these factors.

  10. Effect of Calcium Chloride Treatments on Quality Characteristics of Blackberry Fruit During Storage

    Directory of Open Access Journals (Sweden)

    Tamar Turmanidze

    2016-12-01

    Full Text Available Post-harvested blackberry fruits were immediately treated with 1% and 2% calcium chloride by immersion at 20 ± 1ºC for 2.5 min and kept for 8 days at 0 ± 0,5ºC and Relative Humidity (RH 90 ± 5%.  The application of calcium did not significantly effect on total titratable acidity, pH and   total soluble solids. The blackberry fruits treated with 1% and 2% Calcium chloride increased their ascorbic acid content by 15.7 and 37.5% respectively. Content of cyanidin-3-O-monoglucoside decreased by 6.33, 32.06 and 11.35 mg per 100 g of fruit in case of storage of untreated, treated with 1 and 2%   calcium chloride respectively. Content of pelargonidin 3 – O - monoglucoside increased respectively by 2.29, 26.87 and 8.45 mg per 100 g fruits. Change of content of cyanidin 3 – O - (6 - p – coumaroyl - glucoside was not statistically significant.  Reduction in polyphenols content of control sample by 13.6% reflected in reduction of antioxidant potential by 25%. In the samples treated with 1 and 2%   calcium chloride reduction of polyphenols content by 12.4 and 7.5 % caused reduction of antioxidant potential by 15.6 and 8.7% respectively.

  11. Bound volatile precursors in genotypes in the pedigree of 'Marion' blackberry (Rubus sp.).

    Science.gov (United States)

    Du, Xiaofen; Finn, Chad E; Qian, Michael C

    2010-03-24

    Glycosidically bound volatiles and precursors in genotypes representing the pedigree for 'Marion' blackberry were investigated over two growing seasons. The volatile precursors were isolated using a C18 solid-phase extraction column. After enzymatic hydrolysis, the released volatiles were analyzed using stir bar sorptive extraction gas chromatography-mass spectrometry (GC-MS) and direct microvial insert thermal desorption GC-MS. The most abundant volatile precursors in the genotypes were alcohols, followed by shikimic acid derivatives. High amounts of furanone glycosides were also detected, while norisoprenoids only existed in a small amount in blackberries. The volatile precursor composition in the genotypes in the 'Marion' pedigree was very similar to their free volatile distribution. 'Logan' and 'Olallie' predominantly had bound norisoprenoids. Wild 'Himalaya' predominated with terpene alcohol and furaneol glycosides, whereas 'Santiam' and 'Chehalem' contained a high level of terpene alcohol glycosides. A similar inheritance pattern was also observed for some volatile precursors in the genotypes in the 'Marion' pedigree. A high content of linalool, hydroxylinalool, and alpha-ionol glycosides in 'Olallie' and a low content in 'Chehalem' resulted in a moderate level in their offspring 'Marion', while a low content of (E)-linalool oxide precursor in 'Olallie' and a high content in 'Chehalem' also resulted in a moderate level in 'Marion'. However, the concentration of furaneol glycosides in 'Marion' exceeded that of its two parents.

  12. Phytochemicals in blackberry/ Fitoquímicos em amora-preta (Rubus spp

    Directory of Open Access Journals (Sweden)

    Rui Carlos Zambiazi

    Full Text Available Among the options for fruit species with market prospects, the blackberry (Rubus spp stands out as one of the most promising. This is a species that has shown an increase of cultivated area in recent years in Rio Grande do Sul (main Brazilian producer. Regular consumption of fruits and vegetables is associated with low risk of incidence and mortality from cancer and heart disease due to the presence of compounds derived from secondary metabolism, especially flavonoids and anthocyanins, which have great capacity to react with free radicals that cause oxidative stress, and therefore contribute to the prevention of these diseases. The phenolic acids and flavonoids were identificated in the group of phenolic compounds in blackberry. Among the flavonoids, stands out the anthocyanins, which vary in concentration according to the stage of maturation of fruits. Based on the antocyanin content related in literature and the great variation between different genetic materials, there is great potential in the production of blackberry and its utilization as a natural colorant in the food and pharmaceuticals industry. In addition to these compounds, the blackberry also has other phytochemicals such as vitamin C, vitamin E and carotenoids. This paper aims to review literature of the main phytochemicals in blackberry (Rubus spp.Dentre as opções de espécies frutíferas com perspectivas de comercialização, a amoreira-preta (Rubus spp se destaca como uma das mais promissoras. Esta é uma das espécies que tem apresentado um crescimento de área cultivada nos últimos anos no Rio Grande do Sul (principal produtor brasileiro. O consumo regular de frutas e hortaliças está associado com o baixo risco de incidência e mortalidade por câncer e doenças cardíacas, devido à presença de compostos oriundos do metabolismo secundário, especialmente flavonóides e antocianinas, os quais apresentam grande capacidade de reagir com radicais livres que causam estresse

  13. Annual changes in bioactive contents and production in field-grown blackberry after inoculation with Pseudomonas fluorescens.

    Science.gov (United States)

    Ramos-Solano, B; Garcia-Villaraco, A; Gutierrez-Mañero, F J; Lucas, J A; Bonilla, A; Garcia-Seco, D

    2014-01-01

    The aim of this study was two-fold: first, to characterize blackberry fruits from Rubus sp. var. Lochness along the year, and secondly, to evaluate the ability of a Pseudomonas strain (N21.4) to improve fruit yield and quality under field conditions in production greenhouses throughout the year. The strain was root or leaf inoculated to blackberry plants and fruits were harvested in each season. Nutritional parameters, antioxidant potential and bioactive contents were determined; total fruit yield was recorded. Blackberries grown under short day conditions (autumn and winter) showed significantly lower °Brix values than fruits grown under long day conditions. Interestingly, an increase in fruit °Brix, relevant for quality, was detected after bacterial challenge, together with significant and sustained increases in total phenolics and flavonoids. Improvements in inoculated fruits were more evident from October through early March, when environmental conditions are worse. In summary, N21.4 is an effective agent to increase fruit quality and production along the year in blackberry; this is an environmentally friendly approach to increase fruit quality. Copyright © 2013 Elsevier Masson SAS. All rights reserved.

  14. Dynamics of introduced populations of Phragmidium violaceum and implications for biological control of European blackberry in Australia.

    Science.gov (United States)

    Gomez, D R; Evans, K J; Baker, J; Harvey, P R; Scott, E S

    2008-09-01

    Phragmidium violaceum causes leaf rust on the European blackberry (Rubus fruticosus L. aggregate). Multiple strains of this pathogen have been introduced into southern Australia for the biological control of at least 15 taxa of European blackberry, a nonindigenous, invasive plant. In climates conducive to leaf rust, the intensity of disease varies within and among infestations of the genetically variable host. Genetic markers developed from the selective amplification of microsatellite polymorphic loci were used to assess the population genetic structure and reproductive biology of P. violaceum within and among four geographically isolated and diseased infestations of the European blackberry in Victoria, Australia. Despite the potential for long-distance aerial dispersal of urediniospores, there was significant genetic differentiation among all populations, which was not associated with geographic separation. An assessment of multilocus linkage disequilibrium revealed temporal and geographic variation in the occurrence of random mating among the four populations. The presence of sexual spore states and the results of genetic analyses indicated that recombination, and potentially random migration and genetic drift, played an important role in maintaining genotypic variation within populations. Recombination and genetic differentiation in P. violaceum, as well as the potential for metapopulation structure, suggest the need to release additional, genetically diverse strains of the biocontrol agent at numerous sites across the distribution of the Australian blackberry infestation for maximum establishment and persistence.

  15. Dynamics of Introduced Populations of Phragmidium violaceum and Implications for Biological Control of European Blackberry in Australia▿

    Science.gov (United States)

    Gomez, D. R.; Evans, K. J.; Baker, J.; Harvey, P. R.; Scott, E. S.

    2008-01-01

    Phragmidium violaceum causes leaf rust on the European blackberry (Rubus fruticosus L. aggregate). Multiple strains of this pathogen have been introduced into southern Australia for the biological control of at least 15 taxa of European blackberry, a nonindigenous, invasive plant. In climates conducive to leaf rust, the intensity of disease varies within and among infestations of the genetically variable host. Genetic markers developed from the selective amplification of microsatellite polymorphic loci were used to assess the population genetic structure and reproductive biology of P. violaceum within and among four geographically isolated and diseased infestations of the European blackberry in Victoria, Australia. Despite the potential for long-distance aerial dispersal of urediniospores, there was significant genetic differentiation among all populations, which was not associated with geographic separation. An assessment of multilocus linkage disequilibrium revealed temporal and geographic variation in the occurrence of random mating among the four populations. The presence of sexual spore states and the results of genetic analyses indicated that recombination, and potentially random migration and genetic drift, played an important role in maintaining genotypic variation within populations. Recombination and genetic differentiation in P. violaceum, as well as the potential for metapopulation structure, suggest the need to release additional, genetically diverse strains of the biocontrol agent at numerous sites across the distribution of the Australian blackberry infestation for maximum establishment and persistence. PMID:18641150

  16. Weed management, training, and irrigation practices for organic production of trailing blackberry: II. Soil and plant nutrient concentrations

    Science.gov (United States)

    Organic production of blackberries is increasing, but there is relatively little known about how production practices affect plant and soil nutrient status. The impact of cultivar (‘Black Diamond’ and ‘Marion’), weed management (weed mat, hand weeding, and no weeding), primocane training time (Augus...

  17. Liquid corn and fish fertilizers are good options for fertigation in blackberry cultivars grown in an organic production system

    Science.gov (United States)

    The impact of organic fertilizer source on growth, fruit quality, and yield of two cultivars ('Marion' and 'Black Diamond') blackberry grown organically for the processed market. The planting was established in spring 2010 and was certified organic in 2012. Plants were irrigated using a drip line un...

  18. Impact of liquid fertilizers on plant growth, yield, fruit quality and fertigation management in an organic processing blackberry production system

    Science.gov (United States)

    The impact of organic fertilizer source on the growth, fruit quality, and yield of blackberry cultivars (‘Marion’ and ‘Black Diamond’) grown in machine-harvested, organic production systems for the processed market was evaluated from 2011-13. The planting was established in spring 2010 using approve...

  19. Electronic tracking of human resource skills and knowledge, just in time training, manageable due diligence

    Energy Technology Data Exchange (ETDEWEB)

    Kolodziej, M.A. [Quick Test International Inc., (Canada). Canadian Technology Human Resource Board; Baker, O. [KeySpan Energy Canada, Calgary, AB (Canada)

    2001-06-01

    KeySpan Energy Canada is in the process of obtaining recognition of various occupational profiles including pipeline operators, inspectors, and field and plant operators from various certifying organizations. The process of allowing individuals to obtain certification is recognized by Canadian Technology Human Resources Board as a step towards national standards for technologists and technicians. Proven competency is a must for workers in todays oil industry in response to increasingly stringent government safety regulations, environmental concerns and high public scrutiny. Quick Test international Inc. has developed a management tool in collaboration with end users at KeySpan Energy Canada. It is an electronic, Internet based competency tool for tracking personal competencies and maintaining continued competency. Response to the tool has been favourable. 2 refs., 4 figs.

  20. DEVELOPMENT AND USAGE OF THE ELECTRONIC VIDEO RESOURCES FOR EDUCATIONAL PURPOSES

    Directory of Open Access Journals (Sweden)

    Yaroslav M. Hlynsky

    2017-04-01

    Full Text Available This article discusses the theoretical foundation, the creation and implementation of the electronic educational video resources (EEVR in the example of the development and the usage of the collection of video tutorials in event-driven programming theme, which is studied in the framework of the subject "Informatics" by students of many specialties. It offers some development of the existing conceptual and categorical apparatus concerning EEVR development. It is alleged that the video tutorials allow you to automate the process of learning, redistribute instructional time for the benefit of students' independent work, to provide classroom release time for the teaching of the theoretical issues of the course that is aimed at improving the fundamental nature of training. Practical recommendations for the development of the effective EEVR, which may be useful for the authors of e-learning courses for students of different forms of training are proposed.

  1. Availability, Use and Constraints to Use of Electronic Information Resources by Postgraduates Students at the University of Ibadan

    Directory of Open Access Journals (Sweden)

    Dare Samuel Adeleke

    2017-12-01

    Full Text Available Availability, awareness and use of electronic resources provide access to authoritative, reliable, accurate and timely access to information. The use of electronic information resources (EIRs can enable innovation in teaching and increase timeliness in research of postgraduate students which will eventual result into encouragement of the expected research-led enquiry in this digital age. The study adopted a descriptive survey design. Samples of 300 of postgraduate students within seven out 13 Faculties were randomly selected. Data were collected using questionnaire designed to elicit response from respondents and data were analyzed using descriptive statistics methods percentages, mean, and standard deviation. Results indicated that internet was ranked most available and used in the university. Low level of usage of electronic resources, in particular, full texts data bases is linked to a number of constraints: Interrupted power supply was ranked highest among other factors as speed and capacity of computers, retrieval of records with high recall and low precision, retrieving records relevant to information need, lack of knowledge of search techniques to retrieve information effectively, non possession of requisite IT skills and problems accessing the internet. The study recommended that usage of electronic resources be made compulsory, intensifying awareness campaigns concerning the availability, training on use of electronic resources and the problem of power outage be addressed.

  2. Genetic-algorithm-based optimization of a fuzzy logic resource manager for electronic attack

    Science.gov (United States)

    Smith, James F., III; Rhyne, Robert D., II

    2000-04-01

    A fuzzy logic based expert system has been developed that automatically allocates electronic attack (EA) resources in real-time over many dissimilar platforms. The platforms can be very general, e.g., ships, planes, robots, land based facilities, etc. Potential foes the platforms deal with can also be general. This paper describes data mining activities related to development of the resource manager with a focus on genetic algorithm based optimization. A genetic algorithm requires the construction of a fitness function, a function that must be maximized to give optimal or near optimal results. The fitness functions are in general non- differentiable at many points and highly non-linear, neither property providing difficulty for a genetic algorithm. The fitness functions are constructed using insights from geometry, physics, engineering, and military doctrine. Examples are given as to how fitness functions are constructed including how the fitness function is averaged over a database of military scenarios. The use of a database of scenarios prevents the algorithm from having too narrow a range of behaviors, i.e., it creates a more robust solution.

  3. Factors Influencing Students' Use of Electronic Resources and their Opinions About this Use: The Case of Students at An-Najah National University

    Directory of Open Access Journals (Sweden)

    Wajeeh M. Daher

    2010-12-01

    Full Text Available Electronic resources are becoming an integral part of the modern life and of the educational scene, especially the high education scene. In this research we wanted to verify what influences first degree university students' use of electronic resources and their opinions regarding this use. Collecting data from 202 students and analyzing it using SPSS, we found that more than one half of the participants had high level of electronic media use and more than one third had moderate level of electronic media use. These levels of use indicate the students' awareness of the role and benefits of electronic media use. Regarding the factors that influence the students' se of electronic resources we found that the student's use of electronic resources had significant strong positive relationships with the provision of electronic resources by the academic institution. It had significant moderate positive relationships with the resources characteristics and the course requirement, and had significant weak relationships with the instructor's support and the student's characteristics. We explained these relationships as resulting from the influence of the surrounding community. Regarding the students' opinions about the use of electronic resources, we found that the student's opinion of electronic resources has significant strong positive relationships with student's use of electronic resources, level of this use, the academic institution available facilities, student's characteristics and resources characteristics. It does not have significant relationships with the instructor's support or the course requirement. We explained these relationships depending on activity theory and its integration with ecological psychology.

  4. The electronic encapsulation of knowledge in hydraulics, hydrology and water resources

    Science.gov (United States)

    Abbott, Michael B.

    The rapidly developing practice of encapsulating knowledge in electronic media is shown to lead necessarily to the restructuring of the knowledge itself. The consequences of this for hydraulics, hydrology and more general water-resources management are investigated in particular relation to current process-simulation, real-time control and advice-serving systems. The generic properties of the electronic knowledge encapsulator are described, and attention is drawn to the manner in which knowledge 'goes into hiding' through encapsulation. This property is traced in the simple situations of pure mathesis and in the more complex situations of taxinomia using one example each from hydraulics and hydrology. The consequences for systems architectures are explained, pointing to the need for multi-agent architectures for ecological modelling and for more general hydroinformatics systems also. The relevance of these developments is indicated by reference to ongoing projects in which they are currently being realised. In conclusion, some more general epistemological aspects are considered within the same context. As this contribution is so much concerned with the processes of signification and communication, it has been partly shaped by the theory of semiotics, as popularised by Eco ( A Theory of Semiotics, Indiana University, Bloomington, 1977).

  5. Resources

    Science.gov (United States)

    English in Australia, 1973

    1973-01-01

    Contains seven short resources''--units, lessons, and activities on the power of observation, man and his earth, snakes, group discussion, colloquial and slang, the continuous story, and retelling a story. (DD)

  6. THE FACTOR-CRITERIA MODEL OF ASSESSMENT OF ELECTRONIC EDUCATIONAL GAME RESOURCES IN MATHEMATICS FOR PRIMARY SCHOOL STUDENTS

    Directory of Open Access Journals (Sweden)

    Oksana M. Melnyk

    2016-05-01

    Full Text Available This article proves the need for a comprehensive assessment of electronic educational game resources in mathematics for the primary school students; gives the definition of “the factor-criteria model of the electronic educational game resources (EEGR”. It also describes the created model, which consists of requirements for the content, methodological and program parts of the electronic resources for primary school; identifies the factors and the criteria to each of them. It was proposed to assess the ratios within the group of factors and each group of criteria according to the arithmetic progression. The presented model can be a convenient tool both for primary school teachers and EEGR developers. It can also be a basis for a unified state comprehensive system of assessment of the EEGR.

  7. SAGES: a suite of freely-available software tools for electronic disease surveillance in resource-limited settings.

    Directory of Open Access Journals (Sweden)

    Sheri L Lewis

    Full Text Available Public health surveillance is undergoing a revolution driven by advances in the field of information technology. Many countries have experienced vast improvements in the collection, ingestion, analysis, visualization, and dissemination of public health data. Resource-limited countries have lagged behind due to challenges in information technology infrastructure, public health resources, and the costs of proprietary software. The Suite for Automated Global Electronic bioSurveillance (SAGES is a collection of modular, flexible, freely-available software tools for electronic disease surveillance in resource-limited settings. One or more SAGES tools may be used in concert with existing surveillance applications or the SAGES tools may be used en masse for an end-to-end biosurveillance capability. This flexibility allows for the development of an inexpensive, customized, and sustainable disease surveillance system. The ability to rapidly assess anomalous disease activity may lead to more efficient use of limited resources and better compliance with World Health Organization International Health Regulations.

  8. Effect of the single and combined inoculation with Arbuscular Mycorrhizal Fungi (AMF) and Plant Growth Promoting Rhizobacteria (PGPR) in micropropagated blackberry plants (Rubus glaucus L.)

    OpenAIRE

    Urley Adrian Pérez Moncada; María Margarita Ramírez Gómez; Yimmy Alexander Zapata Narváez; Juana Marcela Córdoba Sánchez

    2015-01-01

    The aim of this study was to obtain blackberry seedlings of three ecotypes of blackberry (monterrico, sin espinas and castilla), from in vitro cultures inoculated individually and combined with Arbuscular Mycorrhiza Fungi (AMF) Glomus sp. (GEV02) and plant growth promoting rhizobacteria strains of Pseudomonas migulae (Pf014) and Bacillus amyloliquefaciens (Bs006). The growth variables were aerial and root length (cm), leaf and ro...

  9. Stable isotope ratio analysis of different European raspberries, blackberries, blueberries, currants and strawberries.

    Science.gov (United States)

    Perini, M; Giongo, L; Grisenti, M; Bontempo, L; Camin, F

    2018-01-15

    To date the stable isotope ratios of berries have never been extensively explored. In this work the H, C, N and O isotopic ratios of 190 samples of different soft fruits (strawberries, raspberries, blueberries, blackberries and currants) produced in a northern Italian region and at two sites in Romania and Poland collected over three harvest years are presented and discussed. The different soft fruits showed a typical range for one or more isotopic parameters that can be used to verify the authenticity of the fruit composition declared on the label. The δ 13 C and δ 15 N of pulp and the δ 18 O of juice can be considered effective tools for identifying the different geographical origin of fruit. A significant effect of crop cover on juice δ 18 O and fertilisation practices on pulp δ 15 N was demonstrated and must be considered with attention when evaluating data. Copyright © 2017 Elsevier Ltd. All rights reserved.

  10. Saccharomyces cerevisiae Mixed Culture of Blackberry (Rubus ulmifolius L. Juice: Synergism in the Aroma Compounds Production

    Directory of Open Access Journals (Sweden)

    Pedro Ulises Bautista-Rosales

    2014-01-01

    Full Text Available Blackberry (Rubus sp. juice was fermented using four different strains of Saccharomyces cerevisiae (Vitilevure-CM4457, Enoferm-T306, ICV-K1, and Greroche Rhona-L3574 recognized because of their use in the wine industry. A medium alcoholic graduation spirit (<6GL° with potential to be produced at an industrial scale was obtained. Alcoholic fermentations were performed at 28C°, 200 rpm, and noncontrolled pH. The synergistic effect on the aromatic compounds production during fermentation in mixed culture was compared with those obtained by monoculture and physic mixture of spirits produced in monoculture. The aromatic composition was determined by HS-SPME-GC. The differences in aromatic profile principally rely on the proportions in aromatic compounds and not on the number of those compounds. The multivariance analysis, principal component analysis (PCA, and factorial discriminant analysis (DFA permit to demonstrate the synergism between the strains.

  11. Analysis of Phenolic Compounds and Antioxidant Activity in Wild Blackberry Fruits

    Directory of Open Access Journals (Sweden)

    Jan Oszmiański

    2015-06-01

    Full Text Available Twenty three different wild blackberry fruit samples were assessed regarding their phenolic profiles and contents (by LC/MS quadrupole time-of-flight (QTOF and antioxidant activity (ferric reducing ability of plasma (FRAP and 2,2-azinobis (3-ethyl-benzothiazoline-6-sulfonic acid (ABTS by two different extraction methods. Thirty four phenolic compounds were detected (8 anthocyanins, 15 flavonols, 3 hydroxycinnamic acids, 6 ellagic acid derivatives and 2 flavones. In samples, where pressurized liquid extraction (PLE was used for extraction, a greater increase in yields of phenolic compounds was observed, especially in ellagic acid derivatives (max. 59%, flavonols (max. 44% and anthocyanins (max. 29%, than after extraction by the ultrasonic technique extraction (UAE method. The content of phenolic compounds was significantly correlated with the antioxidant activity of the analyzed samples. Principal component analysis (PCA revealed that the PLE method was more suitable for the quantitative extraction of flavonols, while the UAE method was for hydroxycinnamic acids.

  12. Resistance to fludioxonil in Botrytis cinerea isolates from blackberry and strawberry.

    Science.gov (United States)

    Li, Xingpeng; Fernández-Ortuño, Dolores; Grabke, Anja; Schnabel, Guido

    2014-07-01

    Site-specific fungicides, including the phenylpyrrole fludioxonil, are frequently used for gray mold control but are at risk for the development of resistance. In this study, field isolates that were low-resistant (LR) and moderately resistant (MR) to fludioxonil from blackberry and strawberry fields of North Carolina, South Carolina, and Virginia were characterized. Genes involved in osmoregulation, including bcsak1, BcOS4, bos5, and BRRG-1, were cloned and sequenced to detect potential target gene alterations; however, none were found. A previously described mutation (R632I) in transcription factor Mrr1, which is known to increase the expression of ATP-binding cassette transporter AtrB, was found in MR but not in sensitive (S) or LR isolates. Expression of atrB in MR isolates was ≈200-fold increased compared with an S isolate; however, 30- to 100-fold overexpression was also detected in LR isolates. Both MR isolates exhibited increased sensitivity to salt stress in the form of mycelial growth inhibition at 4% NaCl, indicating a disruption of osmoregulatory processes in those strains. However, the glycerol content was indistinguishable between S, LR, and MR isolates with and without exposure to fludioxonil, suggesting that the glycerol synthesis pathway may not be a part of the resistance mechanism in LR or MR strains. An investigation into the origin of LR and MR isolates from blackberry revealed two insertions in the mrr1 gene consistent with those found in the Botrytis clade group S. The emergence of strains overexpressing atrB in European and now in North American strawberry fields underscores the importance of this resistance mechanism for development of resistance to fludioxonil in Botrytis cinerea.

  13. INVESTIGATION OF ANTIOXIDANT ACTIVITY OF BLACKBERRY AND CRANBERRY LIQUEURS, PREPARED BY THE METHOD OF ULTRASONIC EXTRACTION

    Directory of Open Access Journals (Sweden)

    N. S. Rodionova

    2015-01-01

    Full Text Available Experimental results of antioxidant activity of berry liqueurs prepared by the method of ultrasonic extraction in comparison with liqueurs, obtained by the traditional method are presented in the article. Blackberries and cranberries, characterized by a high content of antioxidants were chosen as the research subjects. Ultrasonic extraction method with which cranberry and blackberry liqueurs were prepared was studied in terms of the given experimental work. An extractor with submersible ultrasonic transducer was used as an experimental device. The process was carried out in the frequency range of 20 - 20.5 kHz at 20-22о С. In accordance with the traditional technology of preparation of berry liqueur cranberry and blueberry were kept for a long-term (more than 2 months in 40% ethanol solution at a ratio of berries to extractant of 1: 5. Ultrasonic extraction involves brief contact of berries and extractant (up to 15 minutes with the application of ultrasonic vibrations. Operating parameters of extraction were determined experimentally in the research process. With the increase in exposure time, the yield of biologically active substances increases to reach an equilibrium state corresponding to the most complete raw materials depletion. The optimum extraction time during which the maximum possible transfer of solids in the extract occurs was determined. Ultrasonic extraction method can significantly reduce the processing time and provide a more complete extraction of substances. Diffusion boundary layer is disrupted, the penetration of the extractant in the material is improved during the application of ultrasonic waves. All this leads to a significant acceleration of transition of the active ingredients from the raw material into extractant and to obtaining a product with antioxidant activity greater than the traditional product by 2 times.

  14. Utilization of Electronic Information Resources by Undergraduate Students of University of Ibadan: A Case Study of Social Sciences and Education

    Science.gov (United States)

    Owolabi, Sola; Idowu, Oluwafemi A.; Okocha, Foluke; Ogundare, Atinuke Omotayo

    2016-01-01

    The study evaluated utilization of electronic information resources by undergraduates in the Faculties of Education and the Social Sciences in University of Ibadan. The study adopted a descriptive survey design with a study population of 1872 undergraduates in the Faculties of Education and the Social Sciences in University of Ibadan, from which a…

  15. Impact of Electronic Resources and Usage in Academic Libraries in Ghana: Evidence from Koforidua Polytechnic & All Nations University College, Ghana

    Science.gov (United States)

    Akussah, Maxwell; Asante, Edward; Adu-Sarkodee, Rosemary

    2015-01-01

    The study investigates the relationship between impact of electronic resources and its usage in academic libraries in Ghana: evidence from Koforidua Polytechnic & All Nations University College, Ghana. The study was a quantitative approach using questionnaire to gather data and information. A valid response rate of 58.5% was assumed. SPSS…

  16. Systematic review of electronic surveillance of infectious diseases with emphasis on antimicrobial resistance surveillance in resource-limited settings.

    Science.gov (United States)

    Rattanaumpawan, Pinyo; Boonyasiri, Adhiratha; Vong, Sirenda; Thamlikitkul, Visanu

    2018-02-01

    Electronic surveillance of infectious diseases involves rapidly collecting, collating, and analyzing vast amounts of data from interrelated multiple databases. Although many developed countries have invested in electronic surveillance for infectious diseases, the system still presents a challenge for resource-limited health care settings. We conducted a systematic review by performing a comprehensive literature search on MEDLINE (January 2000-December 2015) to identify studies relevant to electronic surveillance of infectious diseases. Study characteristics and results were extracted and systematically reviewed by 3 infectious disease physicians. A total of 110 studies were included. Most surveillance systems were developed and implemented in high-income countries; less than one-quarter were conducted in low-or middle-income countries. Information technologies can be used to facilitate the process of obtaining laboratory, clinical, and pharmacologic data for the surveillance of infectious diseases, including antimicrobial resistance (AMR) infections. These novel systems require greater resources; however, we found that using electronic surveillance systems could result in shorter times to detect targeted infectious diseases and improvement of data collection. This study highlights a lack of resources in areas where an effective, rapid surveillance system is most needed. The availability of information technology for the electronic surveillance of infectious diseases, including AMR infections, will facilitate the prevention and containment of such emerging infectious diseases. Copyright © 2018 Association for Professionals in Infection Control and Epidemiology, Inc. Published by Elsevier Inc. All rights reserved.

  17. The Use of Electronic Resources by Academic Staff at the University of Ilorin, Nigeria

    Science.gov (United States)

    Tella, Adeyinka; Orim, Faith; Ibrahim, Dauda Morenikeji; Memudu, Suleiman Ajala

    2018-01-01

    The use of e-resources is now commonplace among academics in tertiary educational institutions the world over. Many academics including those in the universities are exploring the opportunities of e-resources to facilitate teaching and research. As the use of e-resources is increasing particularly among academics at the University of Ilorin,…

  18. Callogenesis and cell suspension establishment of tropical highland blackberry (Rubus adenotrichosSchltdl.) and its microscopic analysis.

    Science.gov (United States)

    Schmidt-Durán, Alexander; Alvarado-Ulloa, Carlos; Chacón-Cerdas, Randall; Alvarado-Marchena, Luis Fernando; Flores-Mora, Dora

    2016-01-01

    Blackberries are fruits produced worldwide, with 25 % of their production centered in Mexico, Central and South America. Tropical highland blackberry is a fruit that can potentially enhance human health, due to their high content in phenolic compounds, which include anthocyanins, phenolic acids, tannins (gallotannins and elagitannins) and flavonoids. Therefore, the overall aim of this study is the development of a callus induction protocol, the establishment of blackberry cell suspensions ( Rubus adenotrichos Schltdl.) and their cell analysis through optical microscopy and TEM, for the potential production of phenolic compounds. In order to produce callogenesis, segments of blackberry leaves were disinfected and placed in different concentrations of 2,4-D and the control media (0; 0.5; 1.0; 1.5; 2.0; 2.5 and 3.0 mg/l of 2,4-D); obtaining the higher size of calli in the medium with 1.5 mg/l of 2,4-D. After this determination, and for this specific treatment, a growth curve was performed through the use of fresh and dry weight parameters, in order to identify each of the growth stages. Furthermore, the calli obtained from the 1.5 mg/l of 2,4-D treatment were placed in two different culture media (MS and MS supplemented with 1.5 mg/l of 2,4-D) in order to establish the cell suspensions and the growth curve. To the best treatment, the total polyphenols were also quantified. It was determined that the MS medium is ideal for the growth and disintegration of the cell suspensions, obtaining 0.0256 mg of gallic acid/g of fresh sample. Finally, a cell callus and cell suspension analysis was performed through OM and TEM, evidencing a higher hystological differentiation in the calli, as well as the observation of antioxidant storage in the plastids.

  19. Application of Ultrasound in a Closed System: Optimum Condition for Antioxidants Extraction of Blackberry (Rubus fructicosus) Residues.

    Science.gov (United States)

    Zafra-Rojas, Quinatzin Y; Cruz-Cansino, Nelly S; Quintero-Lira, Aurora; Gómez-Aldapa, Carlos A; Alanís-García, Ernesto; Cervantes-Elizarrarás, Alicia; Güemes-Vera, Norma; Ramírez-Moreno, Esther

    2016-07-21

    Blackberry processing generates up to 20% of residues composed mainly of peel, seeds and pulp that are abundant in flavonoids. The objective of this study was to optimize the ultrasound conditions, in a closed system, for antioxidants extraction, using the response surface methodology. Blackberry (Rubus fructicosus) residues were analyzed for total phenolics, total anthocyanins, and antioxidant activity by ABTS and DPPH. The selected independent variables were ultrasound amplitude (X₁: 80%-90%) and extraction time (X₂: 10-15 min), and results were compared with conventional extraction methods. The optimal conditions for antioxidants extraction were 91% amplitude for 15 min. The results for total phenolic content and anthocyanins and antioxidant activity by ABTS and DPPH were of 1201.23 mg gallic acid equivalent (GAE)/100 g dry weight basis (dw); 379.12 mg/100 g·dw; 6318.98 µmol Trolox equivalent (TE)/100 g·dw and 9617.22 µmol TE/100 g·dw, respectively. Compared to solvent extraction methods (water and ethanol), ultrasound achieved higher extraction of all compounds except for anthocyanins. The results obtained demonstrated that ultrasound is an alternative to improve extraction yield of antioxidants from fruit residues such as blackberry.

  20. Interaction between maturity stages and temperature on quality of ‘Guarani’ blackberries stored under controlled atmosphere

    Directory of Open Access Journals (Sweden)

    Auri Brackmann

    Full Text Available ABSTRACT: The aim of this research was to evaluate the interaction between maturity stages and temperature on fruit quality of ‘Guarani’ blackberries stored under controlled atmosphere (CA. The experiment was conducted in a factorial scheme (2x2, evaluating two ripening stages (E1: red-color and E2: black-color of fruits and two temperatures (1°C and 5°C. The fruit were stored in CA (10.0kPa O2+15.0kPa CO2 and 98±1% of relative humidity (RH. Results showed that the principal component 1 (PC I and principal component 2 (PC II corresponded to 92.84% of the overall variation of the evaluated variables. Harvest should not be performed in the early maturity stage, because ‘Guarani’ blackberries do not develop all quality of consumer. ‘Guarani’ blackberries must be stored at 1°C. The maturity stage showed the major importance in the overall variability of quality parameters when compared to storage temperature.

  1. Processing and storage effects on monomeric anthocyanins, percent polymeric color, and antioxidant capacity of processed blackberry products.

    Science.gov (United States)

    Hager, Tiffany J; Howard, Luke R; Prior, Ronald L

    2008-02-13

    Blackberries are a rich source of polyphenolics, particularly anthocyanins, that may contribute to the reduced risk of chronic disease; however, as with most berries, the fresh fruit are only seasonally available. With most of the blackberries consumed as frozen or in thermally processed forms after long-term storage, the purpose of this study was to evaluate the effects of processing and 6 months of storage on the anthocyanins and antioxidant capacity of blackberries that were individually quick-frozen (IQF), canned-in-syrup, canned-in-water, pureed, and juiced (clarified and nonclarified). Monomeric anthocyanins, percent polymeric color, and antioxidant capacity by oxygen radical absorbance capacity (ORAC FL) and photochemiluminescence (PCL) were determined postprocessing (1 day) and after 1, 3, and 6 months of storage. Processing resulted in increases in polymeric color values (up to 7%) and losses in monomeric anthocyanins (up to 65%). For most products, processing also resulted in losses in antioxidant capacity (by ORAC FL and PCL). Storage at 25 degrees C of all processed products resulted in dramatic losses in monomeric anthocyanins with as much as 75% losses of anthocyanins throughout storage, which coincided with marked increases of percent polymeric color values of these products over 6 months of storage. There were no changes in ORAC FL or PCL for processed products throughout long-term storage. No significant changes in antioxidant capacity or anthocyanin content were observed in IQF fruit during long-term storage at -20 degrees C.

  2. Adaptation in Caco-2 Human Intestinal Cell Differentiation and Phenolic Transport with Chronic Exposure to Blackberry (Rubus sp.) Extract.

    Science.gov (United States)

    Redan, Benjamin W; Albaugh, George P; Charron, Craig S; Novotny, Janet A; Ferruzzi, Mario G

    2017-04-05

    As evidence mounts for a health-protective role of dietary phenolics, the importance of understanding factors influencing bioavailability increases. Recent evidence has suggested chronic exposure to phenolics may impact their absorption and metabolism. To explore alterations occurring from chronic dietary exposure to phenolics, Caco-2 cell monolayers were differentiated on Transwell inserts with 0-10 μM blackberry (Rubus sp.) total phenolics extracts rich in anthocyanins, flavonols, and phenolic acids. Following differentiation, apical to basolateral transport of phenolics was assessed from an acute treatment of 100 μM blackberry phenolics from 0 to 4 h. Additionally, differences in gene expression of transport and phase II metabolizing systems including ABC transporters, organic anion transporters (OATs), and uridine 5'-diphospho (UDP) glucuronosyltransferases (UGTs) were probed. After 4 h, 1 μM pretreated monolayers showed a significant (P transport including less epicatechin (42.1 ± 0.53), kaempferol glucoside (23.5 ± 0.29), and dicaffeoylquinic acid (31.9 ± 0.20) compared to control. Finally, significant (P transport proteins were observed with treatment. Therefore, adaptation to blackberry extract exposure may impact intestinal transport and metabolism of phenolics.

  3. Application of Ultrasound in a Closed System: Optimum Condition for Antioxidants Extraction of Blackberry (Rubus fructicosus Residues

    Directory of Open Access Journals (Sweden)

    Quinatzin Y. Zafra-Rojas

    2016-07-01

    Full Text Available Blackberry processing generates up to 20% of residues composed mainly of peel, seeds and pulp that are abundant in flavonoids. The objective of this study was to optimize the ultrasound conditions, in a closed system, for antioxidants extraction, using the response surface methodology. Blackberry (Rubus fructicosus residues were analyzed for total phenolics, total anthocyanins, and antioxidant activity by ABTS and DPPH. The selected independent variables were ultrasound amplitude (X1: 80%–90% and extraction time (X2: 10–15 min, and results were compared with conventional extraction methods. The optimal conditions for antioxidants extraction were 91% amplitude for 15 min. The results for total phenolic content and anthocyanins and antioxidant activity by ABTS and DPPH were of 1201.23 mg gallic acid equivalent (GAE/100 g dry weight basis (dw; 379.12 mg/100 g·dw; 6318.98 µmol Trolox equivalent (TE/100 g·dw and 9617.22 µmol TE/100 g·dw, respectively. Compared to solvent extraction methods (water and ethanol, ultrasound achieved higher extraction of all compounds except for anthocyanins. The results obtained demonstrated that ultrasound is an alternative to improve extraction yield of antioxidants from fruit residues such as blackberry.

  4. Use and Cost of Electronic Resources in Central Library of Ferdowsi University Based on E-metrics

    Directory of Open Access Journals (Sweden)

    Mohammad Reza Davarpanah

    2012-07-01

    Full Text Available The purpose of this study was to investigate the usage of electronic journals in Ferdowsi University, Iran based on e-metrics. The paper also aimed to emphasize the analysis of cost-benefit and the correlation between the journal impact factors and the usage data. In this study experiences of Ferdowsi University library on licensing and usage of electronic resources was evaluated by providing a cost-benefit analysis based on the cost and usage statistics of electronic resources. Vendor-provided data were also compared with local usage data. The usage data were collected by tracking web-based access locally, and by collecting vender-provided usage data. The data sources were one-year of vendor-supplied e-resource usage data such as Ebsco, Elsevier, Proquest, Emerald, Oxford and Springer and local usage data collected from the Ferdowsi university web server. The study found that actual usage values differ for vendor-provided data and local usage data. Elsevier has got the highest usage degree in searches, sessions and downloads. Statistics also showed that a small number of journals satisfy significant amount of use while the majority of journals were used less frequent and some were never used at all. The users preferred the PDF rather than HTML format. The data in subject profile suggested that the provided e-resources were best suited to certain subjects. There was no correlation between IF and electronic journal use. Monitoring the usage of e-resources gained increasing importance for acquisition policy and budget decisions. The article provided information about local metrics for the six surveyed vendors/publishers, e.g. usage trends, requests per package, cost per use as related to the scientific specialty of the university.

  5. Challenges for international students in using electronic resources in the Learning Centre : a case study of Oslo University College

    OpenAIRE

    Rahman, Md. Anisur

    2011-01-01

    Joint Master Degree in Digital Library Learning (DILL) The purpose of this study is to find out the challenges facing by international students in using electronic resources in the OUC learning center. This research has used a qualitative approach and purposive, a non-probability techniques used for sampling of this study. A semi-structured face-to-face interviews method is used for the collection of data. The interview questions were open ended and the discourse analysis metho...

  6. RESEARCH OF INFLUENCE OF QUALITY OF ELECTRONIC EDUCATIONAL RESOURCES ON QUALITY OF TRAINING WITH USE OF DISTANCE TECHNOLOGIES

    Directory of Open Access Journals (Sweden)

    H. M. Kravtsov

    2013-03-01

    Full Text Available Communication improving of educational processes requires today new approaches to the management arrangements and forming of educational policy in the field of distance learning, which is based on the use of modern information and communication technologies. An important step in this process is the continuous monitoring of the development and implementation of information technology and, in particular, the distance learning systems in higher educational establishments. The main objective of the monitoring is the impact assessment on the development of distance learning following the state educational standards, curricula, methodical and technical equipment and other factors; factors revelation that influence the implementation and outcomes of distance learning; results comparison of educational institution functioning and distance education systems in order to determine the most efficient ways of its development. The paper presents the analysis results of the dependence of the quality of educational services on the electronic educational resources. Trends in educational services development was studied by comparing the quality influence of electronic educational resources on the quality of educational services of higher pedagogical educational institutions of Ukraine as of 2009-2010 and 2012-2013. Generally, the analysis of the survey results allows evaluating quality of the modern education services as satisfactory and it can be said that almost 70% of the success of their future development depends on the quality of the used electronic educational resources and distance learning systems in particular.

  7. Tracking the Flow of Resources in Electronic Waste - The Case of End-of-Life Computer Hard Disk Drives.

    Science.gov (United States)

    Habib, Komal; Parajuly, Keshav; Wenzel, Henrik

    2015-10-20

    Recovery of resources, in particular, metals, from waste flows is widely seen as a prioritized option to reduce their potential supply constraints in the future. The current waste electrical and electronic equipment (WEEE) treatment system is more focused on bulk metals, where the recycling rate of specialty metals, such as rare earths, is negligible compared to their increasing use in modern products, such as electronics. This study investigates the challenges in recovering these resources in the existing WEEE treatment system. It is illustrated by following the material flows of resources in a conventional WEEE treatment plant in Denmark. Computer hard disk drives (HDDs) containing neodymium-iron-boron (NdFeB) magnets were selected as the case product for this experiment. The resulting output fractions were tracked until their final treatment in order to estimate the recovery potential of rare earth elements (REEs) and other resources contained in HDDs. The results further show that out of the 244 kg of HDDs treated, 212 kg comprising mainly of aluminum and steel can be finally recovered from the metallurgic process. The results further demonstrate the complete loss of REEs in the existing shredding-based WEEE treatment processes. Dismantling and separate processing of NdFeB magnets from their end-use products can be a more preferred option over shredding. However, it remains a technological and logistic challenge for the existing system.

  8. HELP (INFORMATION ELECTRONIC RESOURCE "CHRONICLE OF ONU: DATES, FACTS, EVENTS": HISTORY OF UNIVERSITY IN INFORMATION SPACE

    Directory of Open Access Journals (Sweden)

    А. М. Гавриленко

    2016-03-01

    Object of research is the help information resource "The chronicle of the Odessa national university of I. I. Mechnikov: dates, facts, events". The main objective of our article – to state the main methodological bases of creation of information resource. One of advantages of information resource is possibility of continuous updating and replenishment by new information. Main objective of creation of this information resource is systematization of material on stories of the Odessa national university of I. I. Mechnikov from the date of his basis to the present, ensuring interactive access to information on the main dates, the most significant events in life of university. The base of research are sources on the history of university, chronology of historical development, formation of infrastructure, cadres and scientific researches. In information resource the main stages of development, functioning and transformation of the Odessa University are analyzed, information on its divisions is collected. For creation of this information resource in Scientific library the method of work was developed, the main selection criteria of data are allocated. This information resource have practical value for all who is interested in history of university, historians, scientists-researchers of history of science and the city of Odessa.

  9. A glimpse of the endophytic bacterial diversity in roots of blackberry plants (Rubus fruticosus).

    Science.gov (United States)

    Contreras, M; Loeza, P D; Villegas, J; Farias, R; Santoyo, G

    2016-09-16

    The aim of this study was to explore the diversity of culturable bacterial communities residing in blackberry plants (Rubus fruticosus). Bacterial endophytes were isolated from plant roots, and their 16S rDNA sequences were amplified and sequenced. Our results show that the roots of R. fruticosus exhibit low colony forming units of bacterial endophytes per gram of fresh tissue (6 x 10 2 ± 0.5 x 10 2 ). We identified 41 endophytic bacterial species in R. fruticosus by BLAST homology search and a subsequent phylogenetic analysis, belonging to the classes Actinobacteria, Bacilli, Alfaproteobacteria, Betaproteobacteria, and Gammaproteobacteria. Predominantly, genera belonging the Proteobacteria (Burkholderia, 29.4%; Herbaspirillum, 10.7%; Pseudomonas, 4.9%; and Dyella, 3.9%), Firmicutes (Bacillus, 42.1%), and Actinobacteria (two isolates showing high identity with the Streptomyces genus, 1.9%) divisions were identified. Fifty percent of the bacterial endophytes produced the phytohormone indole-acetic acid (IAA), eleven of which exhibited higher IAA production (>5.8 mg/mL) compared to the plant growth-promoting strain, Pseudomonas fluorescens UM270. Additionally, the endophytic isolates exhibited protease activity (22%), produced siderophores (26.4%), and demonstrated antagonistic action (>50% inhibition of mycelial growth) against the grey mold phytopathogen Botrytis cinerea (3.9%). These results suggested that field-grown R. fruticosus plants contain bacterial endophytes within their tissues with the potential to promote plant growth and display antagonism towards plant pathogens.

  10. Tissue distribution of anthocyanins in rats fed a blackberry anthocyanin-enriched diet.

    Science.gov (United States)

    Felgines, Catherine; Texier, Odile; Garcin, Pauline; Besson, Catherine; Lamaison, Jean-Louis; Scalbert, Augustin

    2009-09-01

    Anthocyanins are natural dietary pigments that could be involved in various health effects. The aim of this study was to investigate the distribution of anthocyanins to various organs (bladder, prostate, testes, heart and adipose tissue) in rats fed with a blackberry anthocyanin-enriched diet for 12 days. Identification and quantification of anthocyanins were carried out by HPLC-DAD. The urinary excretion of total anthocyanins (native anthocyanins and their metabolites) was low (0.20 +/- 0.03%, n = 8). Proportions of anthocyanin derivatives (methylated anthocyanins and glucurono-conjugated derivatives) differed according to the organ considered. The bladder contained the highest levels of anthocyanins followed by the prostate. Prostate, testes and heart contained native cyanidin 3-glucoside and a small proportion of cyanidin monoglucuronide. Cyanidin 3-glucoside and methylated derivatives were present in adipose tissue. Thus, anthocyanin feeding in rats resulted in a wide distribution of anthocyanin derivatives to several organs. Identification of target tissues of anthocyanins may then help to understand the mechanisms of action of anthocyanins in vivo.

  11. Quality baseline of the castilla blackberry (Rubus glaucus in its food chain

    Directory of Open Access Journals (Sweden)

    Fernanda Iza

    2016-09-01

    Full Text Available A proposal for improvement in the performance of the food chain of castilla blackberry (Rubus glaucus in order to potentiate their productivity can only start from a baseline or situational diagnosis of the quality of the fruit and hence identify the main points of improvement. The food chain of the fruit identifies three stages, harvest, post-harvest (storage and transport and marketing or sale. The diagnosis in each stage began with reverse mode. It was identified the most representative producer and the supplying for traders to the point of sale. The quality evaluation of the fruit was performed through chemical and physical characterization in the four stages. Weight loss or losses were evident in all stages, light no significant changes of color from bright red bluish hue in the collection stage until opaque bluish red or off, at the stage of sale due to the short cycle time and the characteristics non-climacteric fruit. However, at all stages of collection, storage, transportation and sale, they presented significant changes in the indices of maturity which meant an increase of sugars, decreased of pH, and increase acidity. The results indicate that the fruit changed its physicochemical characteristics during the stages of the food chain affecting its productivity.

  12. Quality characterization of Andean blackberry fruits (Rubus glaucus Benth. in different maturity stages in Antioquia, Colombia

    Directory of Open Access Journals (Sweden)

    Catarina Pedro Carvalho

    2015-04-01

    Full Text Available Product quality and safety are two essential characteristics for the fruit market, making it necessary to normalize and standardize processes in order to improve their commercialization. In this study, the quality of two Andean blackberry cultivars grown in two regions of Antioquia (Envigado and Guarne, Colombia, from different maturity stages as defined by the Norma Tecnica Colombiana 7146 (NTC Spanish was characterized. The parameters that were found suitable for the fruit quality characterization were: weight, total solid soluble content (TSS, titratable acidity (TA, maturity index (MI, color index (CI and firmness (F. The equatorial diameter (ED maintained its importance relative to the standard and the market, along with the juice yield (JY. The quotient a*/b* presented the best correlation with the visual color scale as defined in the standard. The TSS ranges defined in NTC 4106 were not verified in this studied for fruits grown in the agro-climatic conditions of Antioquia. Linear regression models are a useful tool for making quick and easy comparisons and estimations of the quality parameters.

  13. Effect of Access to an Electronic Medical Resource on Performance Characteristics of a Certification Examination: A Randomized Controlled Trial.

    Science.gov (United States)

    Lipner, Rebecca S; Brossman, Bradley G; Samonte, Kelli M; Durning, Steven J

    2017-09-05

    Electronic resources are increasingly used in medical practice. Their use during high-stakes certification examinations has been advocated by many experts, but whether doing so would affect the capacity to differentiate between high and low abilities is unknown. To determine the effect of electronic resources on examination performance characteristics. Randomized controlled trial. Medical certification program. 825 physicians initially certified by the American Board of Internal Medicine (ABIM) who passed the Internal Medicine Certification examination or sat for the Internal Medicine Maintenance of Certification (IM-MOC) examination in 2012 to 2015. Participants were randomly assigned to 1 of 4 conditions: closed book using typical or additional time, or open book (that is, UpToDate [Wolters Kluwer]) using typical or additional time. All participants took the same modified version of the IM-MOC examination. Primary outcomes included item difficulty (how easy or difficult the question was), item discrimination (how well the question differentiated between high and low abilities), and average question response time. Secondary outcomes included examination dimensionality (that is, the number of factors measured) and test-taking strategy. Item response theory was used to calculate question characteristics. Analysis of variance compared differences among conditions. Closed-book conditions took significantly less time than open-book conditions (mean, 79.2 seconds [95% CI, 78.5 to 79.9 seconds] vs. 110.3 seconds [CI, 109.2 to 111.4 seconds] per question). Mean discrimination was statistically significantly higher for open-book conditions (0.34 [CI, 0.32 to 0.35] vs. 0.39 [CI, 0.37 to 0.41] per question). A strong single dimension showed that the examination measured the same factor with or without the resource. Only 1 electronic resource was evaluated. Inclusion of an electronic resource with time constraints did not adversely affect test performance and did not change

  14. The level of the usage of the human resource information system and electronic recruitment in Croatian companies

    Directory of Open Access Journals (Sweden)

    Snježana Pivac

    2014-12-01

    Full Text Available Performing business according to contemporary requirements influences companies for continuous usage of modern managerial tools, such as a human resource information system (HRIS and electronic recruitment (ER. Human resources have been recognised as curtail resources and the main source of a competitive advantage in creation of successful business performance. In order to attract and select the top employees, companies use quality information software for attracting internal ones, and electronic recruitment for attracting the best possible external candidates. The main aim of this paper is to research the level of the usage of HRIS and ER within medium-size and large Croatian companies. Moreover, the additional aim of this paper is to evaluate the relationship among the usage of these modern managerial tools and the overall success of human resource management within these companies. For the purpose of this paper, primary and secondary research has been conducted in order to reveal the level of the usage of HRIS and ER as well as the overall success of human resource management in Croatian companies. The companies’ classification (HRIS and ER is done by using the non-hierarchical k-means cluster method as well as the nonparametric Kruskal Wallis test. Further, the companies are ranked by the multicriteria PROMETHEE method. Relevant nonparametric tests are used for testing the overall companies’ HRM. Finally, binary logistic regression is estimated, relating binary variable HRM and HRIS development. After detailed research, it can be concluded that large Croatian companies apply HRIS in majority (with a positive relation to HRM performance, but still require certain degrees of its development.

  15. Herpetogramma bipunctalis (Lepidoptera: Crambidae biology and techniques for rearing on leaves of the blackberry (Rubus spp., Rosaceae

    Directory of Open Access Journals (Sweden)

    GI. Diez-Rodríguez

    Full Text Available The larvae of the southern beet webworm Herpetogramma bipunctalis (Fabricius, 1794 damage the leaves of species in the plant genus Rubus. The present study investigated the biology of H. bipunctalis and developed a protocol for raising H. bipunctalis under laboratory conditions. On the basis of the biological data, we devised a life table. In order to develop the rearing procedures, we determined which oviposition substrate and blackberry cultivar were the most appropriate for larval development. The mean durations of the egg, larval, and pupal stages were 5.59 days, 26.37 days, and 13.37 days, respectively, and the corresponding survival rates were 80.83%, 49.07%, and 83.23%. The mean pupal weight was 0.0491 g for males and 0.0536 g for females. The mean life cycle (egg-to-adult period was 45.33 days, and overall survival to adulthood was 33.01%. H. bipunctalis females laid a mean of 252.63 eggs over a mean of 13.60 days of oviposition; the mean pre-oviposition period was 2.67 days. Mean female and male life spans were 17.51 and 19.25 days, respectively, and the sex ratio was 0.51. The life-table data indicated that H. bipunctalis can reproduce 57.9 times per generation. Each cage contained one blackberry leaf placed on a paper towel. This method allowed us to obtain the greatest number of eggs. The larval stage was shorter for insects reared on leaves of the Guarani cultivar than for those reared on leaves of the Xavante cultivar (22.63 vs. 26.37 days. These basic data can aid in establishing strategies for the management of H. bipunctalis on blackberry farms.

  16. Development of Anastrepha fraterculus (Diptera: Tephritidae) Related to the Phenology of Blueberry, Blackberry, Strawberry Guava, and Surinam Cherry Fruits.

    Science.gov (United States)

    Bisognin, M; Nava, D E; Diez-Rodríguez, G I; Valgas, R A; Garcia, M S; Krolow, A C R; Antunes, L E C

    2015-02-01

    Anastrepha fraterculus (Wiedemann, 1830) is the main pest of temperate climate orcharding. The study investigated the development of A. fraterculus related to phenological stage of blueberry, blackberry, strawberry guava, and Surinam cherry trees. The phenological stages I (green fruits), II (intermediate ripening stage of fruits), and III (fruits close to harvesting) were determined, and they are from 8th, 10th, and 11th week; 6th, 8th, and 9th week; 8th, 13th, and 16th week; and 5th, 6th, and 7th week after the first flowering of blueberry, blackberry, strawberry guava, and Surinam cherry trees, respectively. We collected fruits from orchards to determine the infestation index using the formula: number of pupa/fruit weight. To investigate the development of A. fraterculus, we determined the following biological parameters: egg-to-adult period, weight of pupae, oviposition period, fecundity, number of pupae, and number of infested fruits. The infestation index for the fruits collected in the field was greater in strawberry guava and Surinam cherry fruits. In the laboratory, the development of A. fraterculus occurred in stage III of blueberry. In blackberry, besides stage III, we also observed the development in stage II, however, at lower infestation. In strawberry guava, the development of A. fraterulus occurred in stages II and III, and the development in both stages was similar. For Surinam cherry, the development occurred in the three phenological stages with similar values for biological parameters. Overall, of the four hosts studied, the strawberry guava and Surinam cherry fruits allowed a better biological development of A. fraterculus, corroborating its preference for fruits native to Brazil. © The Authors 2015. Published by Oxford University Press on behalf of Entomological Society of America. All rights reserved. For Permissions, please email: journals.permissions@oup.com.

  17. Herpetogramma bipunctalis (Lepidoptera: Crambidae) biology and techniques for rearing on leaves of the blackberry (Rubus spp., Rosaceae).

    Science.gov (United States)

    Diez-Rodríguez, G I; Hübner, L K; Antunes, L E C; Nava, D E

    2013-02-01

    The larvae of the southern beet webworm Herpetogramma bipunctalis (Fabricius, 1794) damage the leaves of species in the plant genus Rubus. The present study investigated the biology of H. bipunctalis and developed a protocol for raising H. bipunctalis under laboratory conditions. On the basis of the biological data, we devised a life table. In order to develop the rearing procedures, we determined which oviposition substrate and blackberry cultivar were the most appropriate for larval development. The mean durations of the egg, larval, and pupal stages were 5.59 days, 26.37 days, and 13.37 days, respectively, and the corresponding survival rates were 80.83%, 49.07%, and 83.23%. The mean pupal weight was 0.0491 g for males and 0.0536 g for females. The mean life cycle (egg-to-adult) period was 45.33 days, and overall survival to adulthood was 33.01%. H. bipunctalis females laid a mean of 252.63 eggs over a mean of 13.60 days of oviposition; the mean pre-oviposition period was 2.67 days. Mean female and male life spans were 17.51 and 19.25 days, respectively, and the sex ratio was 0.51. The life-table data indicated that H. bipunctalis can reproduce 57.9 times per generation. Each cage contained one blackberry leaf placed on a paper towel. This method allowed us to obtain the greatest number of eggs. The larval stage was shorter for insects reared on leaves of the Guarani cultivar than for those reared on leaves of the Xavante cultivar (22.63 vs. 26.37 days). These basic data can aid in establishing strategies for the management of H. bipunctalis on blackberry farms.

  18. QR Codes as Finding Aides: Linking Electronic and Print Library Resources

    Science.gov (United States)

    Kane, Danielle; Schneidewind, Jeff

    2011-01-01

    As part of a focused, methodical, and evaluative approach to emerging technologies, QR codes are one of many new technologies being used by the UC Irvine Libraries. QR codes provide simple connections between print and virtual resources. In summer 2010, a small task force began to investigate how QR codes could be used to provide information and…

  19. Supporting Learning and Information Sharing in Natural Resource Management with Technologies for Electronic Documents

    Science.gov (United States)

    Alem, Leila; McLean, Alistair

    2005-01-01

    Community participation is central to achieving sustainable natural resource management. A prerequisite to informed participation is that community and stakeholder groups have access to different knowledge sources, are more closely attuned to the different issues and viewpoints, and are sufficiently equipped to understand and maybe resolve complex…

  20. MendelWeb: An Electronic Science/Math/History Resource for the WWW.

    Science.gov (United States)

    Blumberg, Roger B.

    This paper describes a hypermedia resource, called MendelWeb that integrates elementary biology, discrete mathematics, and the history of science. MendelWeb is constructed from Gregor Menders 1865 paper, "Experiments in Plant Hybridization". An English translation of Mendel's paper, which is considered to mark the birth of classical and…

  1. Electronic Resources in a Next-Generation Catalog: The Case of WorldCat Local

    Science.gov (United States)

    Shadle, Steve

    2009-01-01

    In April 2007, the University of Washington Libraries debuted WorldCat Local (WCL), a localized version of the WorldCat database that interoperates with a library's integrated library system and fulfillment services to provide a single-search interface for a library's physical and electronic content. This brief will describe how WCL incorporates a…

  2. Survey of the use of electronic information resources by students in ...

    African Journals Online (AJOL)

    For libraries to continue to lead in this industry generally and academic libraries in particular, deliberate effort must be made to bring the IT education to every potential user of the libraries. This however must be done based on available data. This is what this study sought to provide- a survey of the use of electronic ...

  3. Bringing Up Gopher: Access to Local & Remote Electronic Resources for University Library Users.

    Science.gov (United States)

    Brown, Melvin Marlo; And Others

    Some of the administrative and organizational issues in creating a gopher, specifically a library gopher for university libraries, are discussed. In 1993 the Electronic Collections Task Force of the New Mexico State University library administration began to develop a library-based gopher system that would enable users to have unlimited access to…

  4. Eavesdropping on Electronic Guidebooks: Observing Learning Resources in Shared Listening Environments.

    Science.gov (United States)

    Woodruff, Allison; Aoki, Paul M.; Grinter, Rebecca E.; Hurst, Amy; Szymanski, Margaret H.; Thornton, James D.

    This paper describes an electronic guidebook, "Sotto Voce," that enables visitors to share audio information by eavesdropping on each others guidebook activity. The first section discusses the design and implementation of the guidebook device, key aspects of its user interface, the design goals for the audio environment, the eavesdropping…

  5. Data Resource Profile: Cardiovascular disease research using linked bespoke studies and electronic health records (CALIBER)

    Science.gov (United States)

    Denaxas, Spiros C; George, Julie; Herrett, Emily; Shah, Anoop D; Kalra, Dipak; Hingorani, Aroon D; Kivimaki, Mika; Timmis, Adam D; Smeeth, Liam; Hemingway, Harry

    2012-01-01

    The goal of cardiovascular disease (CVD) research using linked bespoke studies and electronic health records (CALIBER) is to provide evidence to inform health care and public health policy for CVDs across different stages of translation, from discovery, through evaluation in trials to implementation, where linkages to electronic health records provide new scientific opportunities. The initial approach of the CALIBER programme is characterized as follows: (i) Linkages of multiple electronic heath record sources: examples include linkages between the longitudinal primary care data from the Clinical Practice Research Datalink, the national registry of acute coronary syndromes (Myocardial Ischaemia National Audit Project), hospitalization and procedure data from Hospital Episode Statistics and cause-specific mortality and social deprivation data from the Office of National Statistics. Current cohort analyses involve a million people in initially healthy populations and disease registries with ∼105 patients. (ii) Linkages of bespoke investigator-led cohort studies (e.g. UK Biobank) to registry data (e.g. Myocardial Ischaemia National Audit Project), providing new means of ascertaining, validating and phenotyping disease. (iii) A common data model in which routine electronic health record data are made research ready, and sharable, by defining and curating with meta-data >300 variables (categorical, continuous, event) on risk factors, CVDs and non-cardiovascular comorbidities. (iv) Transparency: all CALIBER studies have an analytic protocol registered in the public domain, and data are available (safe haven model) for use subject to approvals. For more information, e-mail s.denaxas@ucl.ac.uk PMID:23220717

  6. Organogenesis in vitro from the leaf of blackberry cv Čačanska bestrna

    Directory of Open Access Journals (Sweden)

    Lazić Tatjana

    2007-01-01

    Full Text Available The paper presents evaluation of different types and concentrations of plant growth regulators on induction of adventitious organogenesis from the leaf of blackberry cultivar Čačanska Bestrna. This genotype was introduced and maintained in tissue culture on Murashige and Skoog medium (MS (1962, mineral salts and organic complex with in mg l-1: BAP 1.0, IBA 0.1, GA3 0.1. Young, expanded leaves taken from upper third of in vitro proliferating shoots were used as initial explants. The leaves were cut three times across the midrib and placed with adaxial side touching the regeneration medium. In this experiment 20 types of regeneration media have been evaluated with different types and concentrations of cytokinins and auxins: BAP (2.0 mg l-1 or TDZ (1.0 mg l-1 alone, or each in combination with different concentrations of IBA, NAA and 2,4-D (0.1, 1.0 and 2.0 mg l-1. In cv Čačanska Bestrna regeneration of adventitious shoots was observed on three different types of media with BAP combined with IBA (0.1 and 1.0 mg l-1 and NAA (0.1 mg l-1. TDZ alone or in combination with IBA (0.1, 1.0 and 2.0 mg l-1 and NAA (0.1 mg l-1 has been more effective at induction of regeneration than BAP. The highest percentage of regeneration was obtained precisely on medium supplemented with TDZ alone (41.66%. .

  7. Resource-efficient conception of waste electrical and electronic equipment collection groups

    OpenAIRE

    Gries, Nadja von; Wilts, Claas Henning

    2014-01-01

    Critical metals are in great demand by the electrical and electronics industry, so waste electrical and eletronic equipment represents a significant source of secondary raw materials. Owing to low recycling rates and the concomitant supply risks associated with critical metals, the closure of the material cycles is highly relevant to the German economy. Losses of these metals occur from collection until their material recovery, along the entire disposal chain of waste electrical and electroni...

  8. Preference and Use of Electronic Information and Resources by Blind/Visually Impaired in NCR Libraries in India

    Directory of Open Access Journals (Sweden)

    Shailendra Kumar

    2013-06-01

    Full Text Available This paper aims to determine the preference and use of electronic information and resources by blind/visually impaired users in the leading National Capital Region (NCR libraries of India. Survey methodology has been used as the basic research tool for data collection with the help of questionnaires. The 125 in total users surveyed in all the five libraries were selected randomly on the basis of willingness of the users with experience of working in digital environments to participate in the survey. The survey results were tabulated and analyzed with descriptive statistics methods using Excel software and 'Stata version 11'. The findings reveal that ICT have a positive impact in the lives of people with disabilities as it helps them to work independently and increases the level of confidence among them. The Internet is the most preferred medium of access to information among the majority of blind/visually impaired users. The 'Complexity of content available on the net' is found as the major challenge faced during Internet use by blind users of NCR libraries. 'Audio books on CDs/DVDs and DAISY books' are the most preferred electronic resources among the majority of blind/visually impaired users. This study will help the library professionals and organizations/institutions serving people with disabilities to develop effective library services for blind/visually impaired users in the digital environment on the basis of findings on information usage behavior in the study.

  9. An Exploratory study on the use of LibAnswers to Resolve, Track and Monitor Electronic Resources Issues: The KAUST Library experience

    KAUST Repository

    Ramli, Rindra M.

    2017-05-03

    An Exploratory study on KAUST library use of LibAnswers in resolving electronic resources questions received in LibAnswers. It describes the findings of the questions received in LibAnswers. The author made suggestions based on the findings to improve the reference services in responding to e-resources questions.

  10. Evaluation of the Antioxidant Properties and Aromatic Profile During Maturation of The Blackberry (Rubus glaucus Benth and The Bilberry (Vaccinium meridionale Swartz / Evaluación las Propiedades Antioxidantes y el Perfil Aromático Durante la Maduración

    Directory of Open Access Journals (Sweden)

    Luisa Juana Bernal

    2014-03-01

    Full Text Available The blackberry (Rubus glaucus Benth and thebilberry (Vaccinium meridionale Swartz are natural sourcesof antioxidants; they are known for their preventive role against degenerative diseases. In this study, the aromatic profile was evaluated using an electronic nose, including the antioxidant properties and the vitamin C, phenolic and anthocyanin contents during three stages of blackberry and bilberry ripening. A completely random statistical design was followed and the results presented differences in the aromatic profile: a higher anthocyanin content (1.59 mg of cyn-3-glu g-1 in the bilberry and 0.26 mg of cyn-3-glu g-1 in the blackberry and total phenols (5.57 mg of caffeic acid g-1 bilberry and 2.68 mg caffeic acid g-1 blackberry. The behavior of the evaluated properties was independent in each of the fruits. / Los frutos como la mora (Rubus glaucus Benth y el agraz (Vaccinium meridionale Swartz son fuentes naturales de sustancias antioxidantes reconocidas por su papel preventivo en el desarrollo de enfermedades degenerativas. En este estudio se evaluó el perfil aromático por medio de nariz electrónica, las propiedades antioxidantes y el contenido de vitamina C, fenoles y antocianinas totales, durante tres estados de maduración de mora y agraz. El diseño estadístico que se siguió fue completamente aleatorio y los resultados muestran que las frutas en el último estado de madurez evaluado se diferencian por su perfil aromático, un contenido mayor de antocianinas (1,59 y 0,26 mg cyn-3-glu g-1 en agraz y mora, respectivamente y fenoles totales (5,57 y 2,68 mg ácido caféico g-1 en agraz y mora, respectivamente. El comportamiento de las propiedades evaluadas es independiente en cada una de las frutas.

  11. Formation of Short-Chain Fatty Acids, Excretion of Anthocyanins, and Microbial Diversity in Rats Fed Blackcurrants, Blackberries, and Raspberries

    Directory of Open Access Journals (Sweden)

    Greta Jakobsdottir

    2013-01-01

    Full Text Available Introduction. Berries contain high amounts of dietary fibre and flavonoids and have been associated with improved metabolic health. The mechanisms are not clear but the formation of SCFAs, especially propionic and butyric acids, could be important. The potent antioxidant and antimicrobial properties of flavonoids could also be a factor, but little is known about their fate in the gastrointestinal tract. Aim. To compare how blackcurrants, blackberries, raspberries, and Lactobacillus plantarum HEAL19 affect formation of SCFAs, inflammatory status, caecal microbial diversity, and flavonoids. Results and Conclusions. Degradation of the dietary fibre, formation of SCFAs including propionic and butyric acids, the weight of the caecal content and tissue, and the faecal wet and dry weight were all higher in rats fed blackcurrants rather than blackberries or raspberries. However, the microbial diversity of the gut microbiota was higher in rats fed raspberries. The high content of soluble fibre in blackcurrants and the high proportion of mannose-containing polymers might explain these effects. Anthocyanins could only be detected in urine of rats fed blackcurrants, and the excretion was lower with HEAL19. No anthocyanins or anthocyanidins were detected in caecal content or blood. This may indicate uptake in the stomach or small intestine.

  12. The effect of anthocyanins from red wine and blackberry on the integrity of a keratinocyte model using ECIS.

    Science.gov (United States)

    Évora, Ana; de Freitas, Victor; Mateus, Nuno; Fernandes, Iva

    2017-11-15

    There is a growing market demand for the incorporation of plant-derived ingredients into new products for the cosmetic industry. Anthocyanins are polyphenols arising from plant secondary metabolism that have been shown to possess many bioactive properties such as free radical scavenging, antimicrobial, and chemopreventive activities. In this work, the biological activities of red wine and blackberry anthocyanins were assessed by developing a new keratinocyte barrier model using the HaCat cell line and a microelectrode-based biosensor device, referred to as Electric Cell-Substrate Impedance Sensing (ECIS). Cells were seeded at the optimal cellular density of 1.6 × 10 6 cells per mL and the half-time was calculated to be 3.55 ± 0.67 hours. The compounds' cytotoxicity was assessed and anthocyanin pigments showed no cytotoxicity towards keratinocyte cells. Wound healing assays were also performed using ECIS and it was observed that the tested pigments enhanced the healing rate of keratinocyte cells by reducing the healing time more than 50%. Cyanidin-3-glucoside presented the best results recovering 50% of the injured area in 1.48(±0.15) hours, followed by the blackberry anthocyanins (2.01 ± 0.18 hours), malvidin-3-glucoside (2.03 ± 0.09 hours) and red wine anthocyanins (2.36 ± 0.76 hours). All presented significant differences from the control 4.91(±1.11) hours.

  13. Influence of different extracts addition on total phenols, anthocyanin content and antioxidant activity of blackberry juice during storage

    Directory of Open Access Journals (Sweden)

    Blanka Bilić

    2011-01-01

    Full Text Available The aim of this study was investigation of influence of different extracts addition on total phenols, anthocyanin content, antioxidant activity and percent of polymeric colour of blackberry juice during storage of 52 days at 4 °C. Anthocyanin content of control sample (blackberry juice without extracts addition was 149.91 mg/L. Samples with addition of extracts (olive leaf, pine bark PE 5:1, pine bark PE 95 %, green tea, red wine PE 30 %, red wine PE 4:1 and bioflavonoids had higher anthocyanin content (from 152.42 to 161.19 mg/L in comparison to control sample. Sample with addition of bioflavonoids had the highest anthocyanin content. Samples with addition of extracts had much higher total phenol content and antioxidant activity than control sample, what was expected since extracts are rich in phenols. During storage decrease of phenols, anthocyanins and antioxidant activity occurred in higher or lesser extent, depending on extract type addition. Anthocyanin content in control sample was 119.85 mg/L. Samples with addition of bioflavonoids, olive leaf, pine bark PE 5:1 and red wine PE 4:1 had lower (from 103.44 to 118.84 mg/L, while other samples had higher (from 131.99 to 135.57 mg/L anthocyanin content than control sample. After storage, decrease of anthocyanins was followed with increase of percent of polymeric colour, with exception of samples with addition of green tea.

  14. In vitro gastrointestinal digestion promotes the protective effect of blackberry extract against acrylamide-induced oxidative stress

    Science.gov (United States)

    Chen, Wei; Su, Hongming; Xu, Yang; Jin, Chao

    2017-01-01

    Acrylamide (AA)-induced toxicity has been associated with accumulation of excessive reactive oxygen species. The present study was therefore undertaken to investigate the protective effect of blackberry digests produced after (BBD) in vitro gastrointestinal (GI) digestion against AA-induced oxidative damage. The results indicated that the BBD (0.5 mg/mL) pretreatment significantly suppressed AA-induced intracellular ROS generation (56.6 ± 2.9% of AA treatment), mitochondrial membrane potential (MMP) decrease (297 ± 18% of AA treatment) and glutathione (GSH) depletion (307 ± 23% of AA treatment), thereby ameliorating cytotoxicity. Furthermore, LC/MS/MS analysis identified eight phenolic compounds with high contents in BBD, including ellagic acid, ellagic acid pentoside, ellagic acid glucuronoside, methyl-ellagic acid pentoside, methyl-ellagic acid glucuronoside, cyanidin glucoside, gallic acid and galloyl esters, as primary active compounds responsible for antioxidant action. Collectively, our study uncovered that the protective effect of blackberry was reserved after gastrointestinal digestion in combating exogenous pollutant-induced oxidative stress.

  15. Antioxidant Properties of “Natchez” and “Triple Crown” Blackberries Using Korean Traditional Winemaking Techniques

    Directory of Open Access Journals (Sweden)

    Youri Joh

    2017-01-01

    Full Text Available This research evaluated blackberries grown in Oklahoma and wines produced using a modified traditional Korean technique employing relatively oxygen-permeable earthenware fermentation vessels. The fermentation variables were temperature (21.6°C versus 26.6°C and yeast inoculation versus wild fermentation. Wild fermented wines had higher total phenolic concentration than yeast fermented wines. Overall, wines had a relatively high concentration of anthocyanin (85–320 mg L−1 malvidin-3-monoglucoside and antioxidant capacity (9776–37845 µmol Trolox equivalent g−1. “Natchez” berries had a higher anthocyanin concentration than “Triple Crown” berries. Higher fermentation temperature at the start of the winemaking process followed by the use of lower fermentation/storage temperature for aging wine samples maximized phenolic compound extraction/retention. The Korean winemaking technique used in this study produced blackberry wines that were excellent sources of polyphenolic compounds as well as being high in antioxidant capacity as measured by the Oxygen Radical Absorbance Capacity (ORAC test.

  16. Erythritol and Lufenuron Detrimentally Alter Age Structure of Wild Drosophila suzukii (Diptera: Drosophilidae) Populations in Blueberry and Blackberry.

    Science.gov (United States)

    Sampson, B J; Marshall, D A; Smith, B J; Stringer, S J; Werle, C T; Magee, D J; Adamczyk, J J

    2017-04-01

    We report on the efficacy of 0.5 M (61,000 ppm) erythritol (E) in Truvia Baking Blend, 10 ppm lufenuron (L), and their combination (LE) to reduce egg and larval densities of wild populations of Drosophila suzukii (Matsumura) infesting fields of rabbiteye blueberries (Vaccinium virgatum) and blackberries (Rubus sp.). Formulations included the active ingredients (lufenuron, erythritol, or both), sugar (in control and erythritol treatments), and Dawn hand-soap applied to plants with pressurized 3-gallon garden spray tanks. The three chemical treatments (E, L, and LE) had no effect on D. suzukii ovipositing in blackberry and blueberry fruit, but they did reduce larval infestation by 75%, particularly densities of first and second instars. Erythritol and lufenuron were equally efficacious compounds as a D. suzukii ovicide and larvicide, but they did not display additive or synergistic activity. Extremely high larval mortality in control fruits show an age structure heavily skewed toward egg output. Published by Oxford University Press on behalf of Entomological Society of America 2017. This work is written by a US Government employee and is in the public domain in the US.

  17. Internet and electronic resources for inflammatory bowel disease: a primer for providers and patients.

    Science.gov (United States)

    Fortinsky, Kyle J; Fournier, Marc R; Benchimol, Eric I

    2012-06-01

    Patients with inflammatory bowel disease (IBD) are increasingly turning to the Internet to research their condition and engage in discourse on their experiences. This has resulted in new dynamics in the relationship between providers and their patients, with misinformation and advertising potentially presenting barriers to the cooperative patient-provider partnership. This article addresses important issues of online IBD-related health information and social media activity, such as quality, reliability, objectivity, and privacy. We reviewed the medical literature on the quality of online information provided to IBD patients, and summarized the most commonly accessed Websites related to IBD. We also assessed the activity on popular social media sites (such as Facebook, Twitter, and YouTube), and evaluated currently available applications for use by IBD patients and providers on mobile phones and tablets. Through our review of the literature and currently available resources, we developed a list of recommended online resources to strengthen patient participation in their care by providing reliable, comprehensive educational material. Copyright © 2011 Crohn's & Colitis Foundation of America, Inc.

  18. Granulometric composition study of mineral resources using opto-electronic devices and Elsieve software system

    OpenAIRE

    Kaminski Stanislaw; Kaminski Piotr; Kaminska Dorota; Trzcinski Jerzy

    2016-01-01

    The use of mechanical sieves has a great impact on measurement results because occurrence of anisometric particles causes undercounting the average size. Such errors can be avoided by using opto-electronic measuring devices that enable measurement of particles from 10 μm up to a few dozen millimetres in size. The results of measurement of each particle size fraction are summed up proportionally to its weight with the use of Elsieve software system and for every type of material particle-size ...

  19. Compostos bioativos presentes em amora-preta (Rubus spp. Bioactive compounds of blackberry fruits (Rubus spp. grown in Brazil

    Directory of Open Access Journals (Sweden)

    Daniela Souza Ferreira

    2010-09-01

    Full Text Available A amora-preta (Rubus spp., pequena fruta de clima temperado, possui coloração atraente, variando do vermelho púrpura ao azul, devido ao elevado teor de antocianinas. As antocianinas, juntamente com os carotenoides, compõem os pigmentos naturais, majoritários encontrados em diversas frutas. Diversos estudos têm relatado a importância destes pigmentos naturais como protetores e/ou inibidores de doenças degenerativas, porém são escassos os estudos sobre compostos bioativos presentes em amora-preta cultivada no Brasil. Os objetivos do presente estudo foram identificar as antocianinas e os carotenoides presentes em amora-preta, determinar os conteúdos totais de compostos fenólicos, carotenoides, flavonoides, antocianinas totais, monoméricas, poliméricas e copigmentadas, e a capacidade antioxidante frente aos radicais livres ABTS e DPPH. O teor total de carotenoides foi baixo (86,5 ± 0,2 µg/100 g, com all-trans-β-caroteno (39,6 % e all-trans-luteína (28,2 % como os majoritários. As amoras-pretas apresentaram elevado potencial antioxidante principalmente pelo teor representativo de antocianinas monoméricas (104,1 ± 1,8 mg/100 g de fruto, presença de antocianinas poliméricas (22,9 ± 0,4 %, baixa porcentagem de antocianinas copigmentadas (1,6 ± 0,1 % e altos teores de compostos fenólicos (241,7 ± 0,8 mg equivalente de ácido gálico/100 g e de flavonoides totais (173,7 ± 0,7 mg equivalente de catequina/100 g. Cianidina 3-glucosídeo foi a antocianina majoritária (92,9 %. Diante destes resultados, a amora-preta pode ser considerada uma fonte natural rica em antioxidantes e pigmentos.The blackberry (Rubus spp., a small fruit grown in temperate climate, shows an attractive color ranging from purple red to blue, due to the high content of anthocyanins. The anthocyanins, along with carotenoids, are the major natural pigments found in several fruits. Many studies have reported the importance of these natural pigments as protectors

  20. Granulometric composition study of mineral resources using opto-electronic devices and Elsieve software system

    Directory of Open Access Journals (Sweden)

    Kaminski Stanislaw

    2016-01-01

    Full Text Available The use of mechanical sieves has a great impact on measurement results because occurrence of anisometric particles causes undercounting the average size. Such errors can be avoided by using opto-electronic measuring devices that enable measurement of particles from 10 μm up to a few dozen millimetres in size. The results of measurement of each particle size fraction are summed up proportionally to its weight with the use of Elsieve software system and for every type of material particle-size distribution can be obtained. The software allows further statistical interpretation of the results. Beam of infrared radiation identifies size of particles and counts them precisely. Every particle is represented by an electronic impulse proportional to its size. Measurement of particles in aqueous suspension that replaces the hydrometer method can be carried out by using the IPS L analyser (range from 0.2 to 600 μm. The IPS UA analyser (range from 0.5 to 2000 μm is designed for measurement in the air. An ultrasonic adapter enables performing measurements of moist and aggregated particles from 0.5 to 1000 μm. The construction and software system allow to determine second dimension of the particle, its shape coefficient and specific surface area. The AWK 3D analyser (range from 0.2 to 31.5 mm is devoted to measurement of various powdery materials with subsequent determination of particle shape. The AWK B analyser (range from 1 to 130 mm measures materials of thick granulation and shape of the grains. The presented method of measurement repeatedly accelerates and facilitates study of granulometric composition.

  1. Characterization of iprodione resistance in Botrytis cinerea from strawberry and blackberry.

    Science.gov (United States)

    Grabke, Anja; Fernández-Ortuño, Dolores; Amiri, Achour; Li, Xingpeng; Peres, Natália A; Smith, Powell; Schnabel, Guido

    2014-04-01

    Gray mold, caused by the fungal pathogen Botrytis cinerea, is one of the most destructive diseases of strawberry. Control of the disease in commercial fields is largely dependent on the application of fungicides, including the dicarboximide iprodione. Single-spore isolates were collected from strawberry fields in Florida, North Carolina, and South Carolina and subjected to an assay using conidial germination that distinguished sensitive (S) isolates from isolates with various levels of resistance to iprodione. Of the 245 isolates, 1 was highly resistant (HR), 5 were moderately resistant (MR), and 43 had low resistance (LR) to iprodione. LR and MR strains were found in the Florida population and in 9 of 11 locations from North Carolina and South Carolina, indicating that resistance was widespread but accounted for only a relatively small percentage of the B. cinerea population. Sequence analysis of the target gene bos1, which codes for a class III histidine kinase, revealed that the MR phenotype was associated with Q369P and N373S mutations and that the LR phenotype was associated with either a I365S or a I365N mutation. The I365S and I365N mutations were also present in five additionally included HR isolates from North Carolina and South Carolina blackberry fields and one HR isolate from a Virginia strawberry field but no mutation or mutation combinations in bos1 were uniquely associated with the HR phenotype. Expression analysis of bos1 in S and HR isolates did not reveal convincing evidence of the gene's involvement in HR resistance either. The six HR isolates had three different phenotypes with respect to their sensitivity to fludioxonil; two were S, two were LR, and two were MR. The fludioxonil LR and MR isolates were also resistant to tolnaftate, an indication of multidrug efflux pump activity. These data suggest that, in addition to point mutations in bos1, drug efflux pump activity and potentially a third mechanism of resistance may be contributing to the

  2. Electronic learning and open educational resources in the health sciences in ghana.

    Science.gov (United States)

    Adanu, Rmk; Adu-Sarkodie, Y; Opare-Sem, O; Nkyekyer, K; Donkor, P; Lawson, A; Engleberg, N C

    2010-12-01

    To determine whether a group of Ghanaian students are able to easily use electronic learning material and whether they perceive this method of learning as acceptable. The University of Ghana Medical School (UGMS) and the School of Medical Sciences (SMS), Kwame Nkrumah University of Science and Technology (KNUST) PARTICIPANTS: One hundred and fifty third year medical students at SMS and nineteen fifth year medical students at UGMS METHODS: Two e-learning materials were developed, one on the polymerase chain reaction and the other on total abdominal hysterectomy and these were distributed to selected medical students. Two weeks after the distribution of the programmes, a one-page, self-administered questionnaire was distributed to the target groups of students at the two institutions. Ninety three percent (139) of respondents at KNUST and 95% (18) at UG report having access to a computer for learning purposes. All of the UG students viewed the TAH programme; 82% (130) of the KNUST students viewed the PCR animations. All students who viewed the programmes at both institutions indicated that the e-learning pro-grammes were "more effective" in comparison to other methods of learning. Computer ownership or availability at both medical schools is sufficient to permit the distribution and viewing of e-learning materials by students and the medical students considered both programmes to be very helpful.

  3. Cardiovascular implantable electronic device function and longevity at autopsy: an underestimated resource.

    Science.gov (United States)

    Sinha, Sunil K; Crain, Barbara; Flickinger, Katie; Calkins, Hugh; Rickard, John; Cheng, Alan; Berger, Ronald; Tomaselli, Gordon; Marine, Joseph E

    2016-10-01

    The feasibility and safety of postmortem cardiovascular implantable electronic device (CIED; pacemaker or defibrillator) retrieval for reuse has been shown. To date, studies indicate a low yield of reusable postmortem CIEDs (17%-30%). The purpose of this study was to test the hypothesis that a higher rate of reusable CIEDs would be identified upon postmortem retrieval when an institutional protocol for systematic and routine acquisition, interrogation, reprogramming, and manufacturer analysis was used. Over a 6-year period, all subjects referred for autopsy underwent concomitant CIED pulse generator retrieval and enrollment in the Johns Hopkins Post-Mortem CIED Registry. CIEDs were interrogated, reprogrammed, and submitted for manufacturer analysis. In total, 84 autopsies had CIEDs (37 pacemakers, 47 implantable cardioverter-defibrillators). CIEDs were implanted 2.84 ± 2.32 years before death, with 30% implanted 60% of pacemakers and >50% of defibrillators demonstrated normal functional status with projected longevities >7 years on average. Formation of a national hospital-based "CIED donor network" would facilitate larger scale charitable efforts in underserved countries. Copyright © 2016 Heart Rhythm Society. Published by Elsevier Inc. All rights reserved.

  4. Transcriptomics, Targeted Metabolomics and Gene Expression of Blackberry Leaves and Fruits Indicate Flavonoid Metabolic Flux from Leaf to Red Fruit.

    Science.gov (United States)

    Gutierrez, Enrique; García-Villaraco, Ana; Lucas, José A; Gradillas, Ana; Gutierrez-Mañero, F Javier; Ramos-Solano, Beatriz

    2017-01-01

    Blackberries ( Rubus spp.) are among the high added value food products relevant for human health due to the increasing evidence of the beneficial effects of polyphenols, which are very abundant in these fruits. Interestingly, these compounds also play a role on plant physiology, being especially relevant their role in plant defense against biotic and abiotic stress. Hence, we hypothesize that since blackberry fruits have high amounts of flavonols and anthocyanins, leaves would also have high amounts of these compounds, and can be studied as a source of active molecules; furthermore, leaf synthesis would support their high contents in fruits. To explore this hypothesis, the present study reports a de novo transcriptome analysis on field grown blackberry leaves and fruits at the same time point, to establish the metabolic relationship of these compounds in both organs. Transcripts were aligned against Fragaria vesca genome, and genes were identified and annotated in different databases; tissue expression pattern showed 20,463 genes common to leaves and fruits, while 6,604 genes were significantly overexpressed only in fruits, while another 6,599 genes were significantly overexpressed in leaves, among which flavonol-anthocyanin transporter genes were present. Bioactives characterization indicated that total phenolics in leaves were three-fold, and flavonols were six-fold than in fruits, while concentration of anthocyanins was higher in fruits; HPLC-MS analysis indicated different composition in leaves and fruits, with cyanidin-3-glucoside as the only common compound identified. Next, RT-qPCR of the core genes in the flavonol anthocyanin pathway and regulatory MYB genes were carried out. Interestingly, genes in the flavonol-anthocyanin pathway and flavonol-transport families were overexpressed in leaves, consistent with the higher bioactive levels. On the other hand, transcription factors were overexpressed in fruits anticipating an active anthocyanin biosynthesis

  5. Effects of different organic weed management strategies on the physicochemical, sensory, and antioxidant properties of machine-harvested blackberry fruits.

    Science.gov (United States)

    Cavender, George; Liu, Mingyang; Hobbs, Deborah; Frei, Balz; Strik, Bernadine; Zhao, Yanyun

    2014-10-01

    The effect of 3 different weed management strategies, nonweeding, hand weeding, and weed mat, were examined on physicochemical, sugar profile, and antioxidant properties of 2 cultivars of blackberry (Rubus spp), "Marion" and "Black Diamond" harvested at 3 time intervals during the 2012 season. Sensory analysis on flavor intensity of 6 different descriptors by an experienced panel was also performed on "Black Diamond" berries harvested at the same interval during the 2013 season. While weed management had no effect on pH, titratable acidity, and total soluble solids of either cultivar (P > 0.05), it showed a marked effect on total phenolics (5.65 to 7.80 mg GAE/g FW), total monomeric anthocyanins (1.07 to 2.85 mg/g FW), ORAC (271.51 to 644.97 μMol TE/g FW), FRAP (408.56 to 719.10 μMol Fe(2+) /g FW), sugar profile, and flavor intensity. Hand-weeding resulted in fruit antioxidant content and capacity as much as 30% greater, though the effect was not seen in the late harvest, where the nonweeded samples tended to have higher values. Overall, weed mat samples had the lowest antioxidant content and capacity in all harvests. Sugar profiling exhibited a greater variability based on cultivar and harvest, but overall, weed mat samples had lower sugar levels than fruit from the other 2 methods. Interestingly, the intensity of sensory attributes for "Black Diamond" appear to possibly be inversely related to phenolic and anthocyanin content, with the weed mat management strategy resulting in the highest values for virtually all sensory attributes. This study provided valuable information about the impact of organic production method on the quality of blackberries. Weed management is one of the largest costs associated with organic agriculture because of limited availability of approved herbicides. While much work has been done to evaluate the effect of different methods on plant growth and yield, few have determined the impact of weed management methods on fruit quality. This

  6. Green Supply Chain Collaboration for Fashionable Consumer Electronics Products under Third-Party Power Intervention—A Resource Dependence Perspective

    Directory of Open Access Journals (Sweden)

    Jiuh-Biing Sheu

    2014-05-01

    Full Text Available Under third-party power intervention (TPPI, which increases uncertainty in task environments, complex channel power interplays and restructuring are indispensable among green supply chain members as they move toward sustainable collaborative relationships for increased viability and competitive advantage. From the resource dependence perspective, this work presents a novel conceptual model to investigate the influence of political and social power on channel power restructuring and induced green supply chain collaboration in brander-retailer bidirectional green supply chains of fashionable consumer electronics products (FCEPs. An FCEP refers to the consumer electronics product (e.g., personal computers, mobile phones, computer notebooks, and game consoles with the features of a well-known brand associated, a short product lifecycle, timely and fashionable design fit for market trends, and quick responsiveness to the variations of market demands. The proposed model is tested empirically using questionnaire data obtained from retailers in the FCEP brander-retailer distribution channels. Analytical results reveal that as an extension of political and social power, TPPI positively affects the reciprocal interdependence of dyadic members and reduces power asymmetry, thereby enhancing the collaborative relationship of dyadic members and leading to improved green supply chain performance. Therein, reciprocal interdependence underlying collaborative relationship is the key to reducing the external environmental uncertainties in the TPPI context.

  7. Leadership and Innovation – the Catalyst of IT&C Industry. A Case Study of BlackBerry Company

    Directory of Open Access Journals (Sweden)

    Silviu Cojocaru

    2013-05-01

    Full Text Available IT&C companies need to adapt themselves to an environment featuring a high level of competition. Innovation stays as the main vector of the domain, while the renewal rate of new technologies grows in speed (there are cases where new technologies emerge and replace the older ones in months. With this series of research we aim to analyse several local or global companies within the IT&C field, as well as the importance of leadership for their development. This first article will focus on leadership within a company called Research In Motion – RIM (currently named BlackBerry and on the main problems that have arisen within the company after the organisation was left without support from the leaders that created its worldwide brand.

  8. Electronic medical record data to identify variables associated with a fibromyalgia diagnosis: importance of health care resource utilization

    Directory of Open Access Journals (Sweden)

    Masters ET

    2015-03-01

    Full Text Available Elizabeth T Masters,1 Jack Mardekian,1 Birol Emir,1 Andrew Clair,1 Max Kuhn,2 Stuart L Silverman,31Pfizer, Inc., New York, NY, 2Pfizer, Inc., Groton, CT, 3Cedars-Sinai Medical Center, Los Angeles, CA, USABackground: Diagnosis of fibromyalgia (FM is often challenging. Identifying factors associated with an FM diagnosis may guide health care providers in implementing appropriate diagnostic and management strategies.Methods: This retrospective study used the de-identified Humedica electronic medical record (EMR database to identify variables associated with an FM diagnosis. Cases (n=4,296 were subjects ≥18 years old with ≥2 International Classification of Diseases, Ninth Revision (ICD-9 codes for FM (729.1 ≥30 days apart during 2012, associated with an integrated delivery network, with ≥1 encounter with a health care provider in 2011 and 2012. Controls without FM (no-FM; n=583,665 did not have the ICD-9 codes for FM. Demographic, clinical, and health care resource utilization variables were extracted from structured EMR data. Univariate analysis identified variables showing significant differences between the cohorts based on odds ratios (ORs.Results: Consistent with FM epidemiology, FM subjects were predominantly female (78.7% vs 64.5%; P<0.0001 and slightly older (mean age 53.3 vs 52.7 years; P=0.0318. Relative to the no-FM cohort, the FM cohort was characterized by a higher prevalence of nearly all evaluated comorbidities; the ORs suggested a higher likelihood of an FM diagnosis (P<0.0001, especially for musculoskeletal and neuropathic pain conditions (OR 3.1 for each condition. Variables potentially associated with an FM diagnosis included higher levels of use of specific health care resources including emergency-room visits, outpatient visits, hospitalizations, and medications. Units used per subject for emergency-room visits, outpatient visits, hospitalizations, and medications were also significantly higher in the FM cohort (P<0

  9. Blackberry extract inhibits UVB-induced oxidative damage and inflammation through MAP kinases and NF-κB signaling pathways in SKH-1 mice skin

    Energy Technology Data Exchange (ETDEWEB)

    Divya, Sasidharan Padmaja; Wang, Xin; Pratheeshkumar, Poyil; Son, Young-Ok; Roy, Ram Vinod [Center for Research on Environmental Disease, University of Kentucky, 1095 VA Drive, Lexington, KY 40536 (United States); Department of Toxicology and Cancer Biology, University of Kentucky, 1095 VA Drive, Lexington, KY 40536 (United States); Kim, Donghern; Dai, Jin [Department of Toxicology and Cancer Biology, University of Kentucky, 1095 VA Drive, Lexington, KY 40536 (United States); Hitron, John Andrew; Wang, Lei [Center for Research on Environmental Disease, University of Kentucky, 1095 VA Drive, Lexington, KY 40536 (United States); Department of Toxicology and Cancer Biology, University of Kentucky, 1095 VA Drive, Lexington, KY 40536 (United States); Asha, Padmaja [National Centre for Aquatic Animal Health, Cochin University of Science and Technology, Cochin (India); Shi, Xianglin [Center for Research on Environmental Disease, University of Kentucky, 1095 VA Drive, Lexington, KY 40536 (United States); Department of Toxicology and Cancer Biology, University of Kentucky, 1095 VA Drive, Lexington, KY 40536 (United States); Zhang, Zhuo, E-mail: zhuo.zhang@uky.edu [Department of Toxicology and Cancer Biology, University of Kentucky, 1095 VA Drive, Lexington, KY 40536 (United States)

    2015-04-01

    Extensive exposure of solar ultraviolet-B (UVB) radiation to skin induces oxidative stress and inflammation that play a crucial role in the induction of skin cancer. Photochemoprevention with natural products represents a simple but very effective strategy for the management of cutaneous neoplasia. In this study, we investigated whether blackberry extract (BBE) reduces chronic inflammatory responses induced by UVB irradiation in SKH-1 hairless mice skin. Mice were exposed to UVB radiation (100 mJ/cm{sup 2}) on alternate days for 10 weeks, and BBE (10% and 20%) was applied topically a day before UVB exposure. Our results show that BBE suppressed UVB-induced hyperplasia and reduced infiltration of inflammatory cells in the SKH-1 hairless mice skin. BBE treatment reduced glutathione (GSH) depletion, lipid peroxidation (LPO), and myeloperoxidase (MPO) in mouse skin by chronic UVB exposure. BBE significantly decreased the level of pro-inflammatory cytokines IL-6 and TNF-α in UVB-exposed skin. Likewise, UVB-induced inflammatory responses were diminished by BBE as observed by a remarkable reduction in the levels of phosphorylated MAP Kinases, Erk1/2, p38, JNK1/2 and MKK4. Furthermore, BBE also reduced inflammatory mediators such as cyclooxygenase-2 (COX-2), prostaglandin E{sub 2} (PGE{sub 2}), and inducible nitric oxide synthase (iNOS) levels in UVB-exposed skin. Treatment with BBE inhibited UVB-induced nuclear translocation of NF-κB and degradation of IκBα in mouse skin. Immunohistochemistry analysis revealed that topical application of BBE inhibited the expression of 8-oxo-7, 8-dihydro-2′-deoxyguanosine (8-oxodG), cyclobutane pyrimidine dimers (CPD), proliferating cell nuclear antigen (PCNA), and cyclin D1 in UVB-exposed skin. Collectively, these data indicate that BBE protects from UVB-induced oxidative damage and inflammation by modulating MAP kinase and NF-κB signaling pathways. - Highlights: • Blackberry extract inhibits UVB-induced glutathione depletion.

  10. Blackberry extract inhibits UVB-induced oxidative damage and inflammation through MAP kinases and NF-κB signaling pathways in SKH-1 mice skin

    International Nuclear Information System (INIS)

    Divya, Sasidharan Padmaja; Wang, Xin; Pratheeshkumar, Poyil; Son, Young-Ok; Roy, Ram Vinod; Kim, Donghern; Dai, Jin; Hitron, John Andrew; Wang, Lei; Asha, Padmaja; Shi, Xianglin; Zhang, Zhuo

    2015-01-01

    Extensive exposure of solar ultraviolet-B (UVB) radiation to skin induces oxidative stress and inflammation that play a crucial role in the induction of skin cancer. Photochemoprevention with natural products represents a simple but very effective strategy for the management of cutaneous neoplasia. In this study, we investigated whether blackberry extract (BBE) reduces chronic inflammatory responses induced by UVB irradiation in SKH-1 hairless mice skin. Mice were exposed to UVB radiation (100 mJ/cm 2 ) on alternate days for 10 weeks, and BBE (10% and 20%) was applied topically a day before UVB exposure. Our results show that BBE suppressed UVB-induced hyperplasia and reduced infiltration of inflammatory cells in the SKH-1 hairless mice skin. BBE treatment reduced glutathione (GSH) depletion, lipid peroxidation (LPO), and myeloperoxidase (MPO) in mouse skin by chronic UVB exposure. BBE significantly decreased the level of pro-inflammatory cytokines IL-6 and TNF-α in UVB-exposed skin. Likewise, UVB-induced inflammatory responses were diminished by BBE as observed by a remarkable reduction in the levels of phosphorylated MAP Kinases, Erk1/2, p38, JNK1/2 and MKK4. Furthermore, BBE also reduced inflammatory mediators such as cyclooxygenase-2 (COX-2), prostaglandin E 2 (PGE 2 ), and inducible nitric oxide synthase (iNOS) levels in UVB-exposed skin. Treatment with BBE inhibited UVB-induced nuclear translocation of NF-κB and degradation of IκBα in mouse skin. Immunohistochemistry analysis revealed that topical application of BBE inhibited the expression of 8-oxo-7, 8-dihydro-2′-deoxyguanosine (8-oxodG), cyclobutane pyrimidine dimers (CPD), proliferating cell nuclear antigen (PCNA), and cyclin D1 in UVB-exposed skin. Collectively, these data indicate that BBE protects from UVB-induced oxidative damage and inflammation by modulating MAP kinase and NF-κB signaling pathways. - Highlights: • Blackberry extract inhibits UVB-induced glutathione depletion. • Blackberry

  11. Innovative direct energy conversion systems using electronic adiabatic processes of electron fluid in solid conductors: new plants of electrical power and hydrogen gas resources without environmental pollutions

    International Nuclear Information System (INIS)

    Kondoh, Y.; Kondo, M.; Shimoda, K.; Takahashi, T.

    2001-07-01

    It is shown that using a novel recycling process of the environmental thermal energy, innovative permanent auto-working direct energy converter systems (PA-DEC systems) from the environmental thermal to electrical and/or chemical potential (TE/CP) energies, abbreviated as PA-TE/CP-DEC systems, can be used for new auto-working electrical power plants and the plants of the compressible and conveyable hydrogen gas resources at various regions in the whole world, with contributions to the world peace and the economical development in the south part of the world. It is shown that the same physical mechanism by free electrons and electrical potential determined by temperature in conductors, which include semiconductors, leads to the Peltier effect and the Seebeck one. It is experimentally clarified that the long distance separation between two π type elements of the heat absorption (HAS) and the production one (HPS) of the Peltier effect circuit system or between the higher temperature side (HTS) and the lower one (LTS) of the Seebeck effect circuit one does not change in the whole for the both effects. By using present systems, we do not need to use petrified fuels such as coals, oils, and natural gases in order to decrease the greenhouse effect by the CO 2 surrounding the earth. Furthermore, we do not need plats of nuclear fissions that left radiating wastes, i.e., with no environmental pollutions. The PA-TE/CP-DEC systems can be applicable for several km scale systems to the micro ones, such as the plants of the electrical power, the compact transportable hydrogen gas resources, a large heat energy container, which can be settled at far place from thermal energy absorbing area, the refrigerators, the air conditioners, home electrical apparatuses, and further the computer elements. It is shown that the simplest PA-TE/CP-DEC system can be established by using only the Seebeck effect components and the resolving water ones. It is clarified that the externally applied

  12. Development of an electronic medical record based alert for risk of HIV treatment failure in a low-resource setting.

    Directory of Open Access Journals (Sweden)

    Nancy Puttkammer

    Full Text Available The adoption of electronic medical record systems in resource-limited settings can help clinicians monitor patients' adherence to HIV antiretroviral therapy (ART and identify patients at risk of future ART failure, allowing resources to be targeted to those most at risk.Among adult patients enrolled on ART from 2005-2013 at two large, public-sector hospitals in Haiti, ART failure was assessed after 6-12 months on treatment, based on the World Health Organization's immunologic and clinical criteria. We identified models for predicting ART failure based on ART adherence measures and other patient characteristics. We assessed performance of candidate models using area under the receiver operating curve, and validated results using a randomly-split data sample. The selected prediction model was used to generate a risk score, and its ability to differentiate ART failure risk over a 42-month follow-up period was tested using stratified Kaplan Meier survival curves.Among 923 patients with CD4 results available during the period 6-12 months after ART initiation, 196 (21.2% met ART failure criteria. The pharmacy-based proportion of days covered (PDC measure performed best among five possible ART adherence measures at predicting ART failure. Average PDC during the first 6 months on ART was 79.0% among cases of ART failure and 88.6% among cases of non-failure (p<0.01. When additional information including sex, baseline CD4, and duration of enrollment in HIV care prior to ART initiation were added to PDC, the risk score differentiated between those who did and did not meet failure criteria over 42 months following ART initiation.Pharmacy data are most useful for new ART adherence alerts within iSanté. Such alerts offer potential to help clinicians identify patients at high risk of ART failure so that they can be targeted with adherence support interventions, before ART failure occurs.

  13. Differences in Brand Image of Online Chat Application of Blackberry Messenger, Whatsapp, and Line for Bina Nusantara University’s Student

    Directory of Open Access Journals (Sweden)

    Kuspuji C. B. Wicaksono

    2016-05-01

    Full Text Available This article was written to find out whether there were any differences on brand image for each online chat Application such as Blackberry Messenger, Whatsapp, and LINE based on six factors of the brand image which are: benefits, attributes, cultures, values, personality, and user. Data for the research were collected from questionnaires given to respondents who had used each mention online chat application. Then each respondent was asked to give scores based on the six factors of brand image for each online chat Application. Using the ANOVA method for testing the differences between brand images for each online chat application. The result reveales that there are differences in the brand image between BlackBerry Messenger, Whatsapp, and LINE for benefits, cultures, and values. There is no difference in attributes, and personality cannot be tested. The company that creates online chat application are expected to improve their brand image to distinguish one another differently.

  14. Effect of the single and combined inoculation with Arbuscular Mycorrhizal Fungi (AMF and Plant Growth Promoting Rhizobacteria (PGPR in micropropagated blackberry plants (Rubus glaucus L.

    Directory of Open Access Journals (Sweden)

    Urley Adrian Pérez Moncada

    2015-01-01

    Full Text Available The aim of this study was to obtain blackberry seedlings of three ecotypes of blackberry (monterrico, sin espinas and castilla, from in vitro cultures inoculated individually and combined with Arbuscular Mycorrhiza Fungi (AMF Glomus sp. (GEV02 and plant growth promoting rhizobacteria strains of Pseudomonas migulae (Pf014 and Bacillus amyloliquefaciens (Bs006. The growth variables were aerial and root length (cm, leaf and root fresh and dry weight (g , root volume (cm3 and leaf area (cm2. The symbiotic variables were root colonization (% by the AMF. The results show a possible synergism between Glomus sp. (GEV02 and rhizobacteria evaluated in combination as these showed the highest values in all variables analyzed. Using the mixture of these organisms a better establishment, development and seedling vigor of default in the three ecotypes was observed, improving survival (≥80 % in the stages of hardening and acclimatization.

  15. Consumer reports [electronic resource

    National Research Council Canada - National Science Library

    1942-01-01

    ... only. A limited number of selected reports, advice on product selection and safety alerts are freely available, as are a five year listing of product recalls, a listing of major consumer product...

  16. Electronic Commerce Resource Centers

    National Research Council Canada - National Science Library

    Caprio, Kimberley

    1997-01-01

    ... No. 5AB-0052, "Audit of the Management and Administration of Research Projects Funded by the Defense Advanced Research Projects Agency," will discuss the adequacy of the Defense Advanced Research...

  17. Electronic Information Resources (EIR Adoption in Private University Libraries: The Moderating Effect of Productivity and Relative Advantage on Perceived Usefulness

    Directory of Open Access Journals (Sweden)

    Izuagbe, Roland

    2016-03-01

    Full Text Available The study tested a hybrid model with constructs drawn from the Technology Acceptance Model (TAM and Diffusion of Innovation (DOI theory in order to examine the moderating effect of productivity and relative advantage (RA on perceived usefulness (PU vis-à-vis electronic information resources (EIR adoption in private university libraries in Ogun and Osun States of Nigeria. The descriptive research design was adopted in the study. The population consisted of 61 (55.0% librarians and 50 (45.0% library officers (totaling 116—100% in Babcock University, Bells University, Covenant University, Bowen University, Oduduwa University, and Redeemer's University. Purposive sampling procedure was adopted after which total enumeration was used since the total population is small. The questionnaire was used for data collection. Of the 116 copies of the questionnaire administered, 111 (95.7% were found usable. The instrument was structured based on a 4-point Likert agreement scale of Strongly Agree, Agree, Disagree, and Strongly Disagree. Data were analyzed using descriptive statistics like tables of frequency counts and percentage. The findings revealed that productivity and relative advantage are significant moderators of perceived usefulness of EIR adoption in private university libraries in Ogun and Osun States, Nigeria.

  18. The effects of pesticides on morphology, viability, and germination of Blackberry (Rubus glaucus Benth.) and Tree tomato (Solanum betaceum Cav.) pollen grains

    OpenAIRE

    Padilla, Flavio; Soria, Norman; Oleas, Abrahan; Rueda, Darwin; Manjunatha, Bangeppagari; Kundapur, Rajesh R.; Maddela, Naga Raju; Rajeswari, Bugude

    2017-01-01

    The objective of this study was to determine the effect of application of pesticides on morphology, viability, and germination of pollen grains of Blackberry (Rubus glaucus Benth.) and Tree tomato (Solanum betaceum Cav.). The study was performed at Patate, Tungurahua province, Ecuador and was divided into two phases. Phase one dedicated to the study of morphology, viability, and identification of nutrient solution for better germination of pollen grains and phase two for the analysis of the e...

  19. The BRIGHTEN Program: Implementation and Evaluation of a Program to Bridge Resources of an Interdisciplinary Geriatric Health Team via Electronic Networking

    Science.gov (United States)

    Emery, Erin E.; Lapidos, Stan; Eisenstein, Amy R.; Ivan, Iulia I.; Golden, Robyn L.

    2012-01-01

    Purpose: To demonstrate the feasibility of the BRIGHTEN Program (Bridging Resources of an Interdisciplinary Geriatric Health Team via Electronic Networking), an interdisciplinary team intervention for assessing and treating older adults for depression in outpatient primary and specialty medical clinics. The BRIGHTEN team collaborates "virtually"…

  20. The module of methodical support in system of electronic educational resources as the innovative element of the modern maintenance of formation

    Directory of Open Access Journals (Sweden)

    Ольга Николаевна Крылова

    2009-06-01

    Full Text Available The article introduces some results of research, which were devoted to evaluation of tearches' mobility to introduce innovations in the contents of education. The author considers innovative potential of modules of the methodical support for system of electronic educational resources.

  1. Charting a Course through CORAL: Texas A&M University Libraries' Experience Implementing an Open-Source Electronic Resources Management System

    Science.gov (United States)

    Hartnett, Eric; Beh, Eugenia; Resnick, Taryn; Ugaz, Ana; Tabacaru, Simona

    2013-01-01

    In 2010, after two previous unsuccessful attempts at electronic resources management system (ERMS) implementation, Texas A&M University (TAMU) Libraries set out once again to find an ERMS that would fit its needs. After surveying the field, TAMU Libraries selected the University of Notre Dame Hesburgh Libraries-developed, open-source ERMS,…

  2. 圖書館事業專欄/Marketing of Electronic Information Resources: A Case of The J.D. Rockefeller Research Library, Egerton University/Nerisa Kamar

    OpenAIRE

    Nerisa Kamar

    2008-01-01

    This paper gives a brief overview of electronic information resources and services offered by The J.D. Rockefeller Research Library at Egerton University and the marketing of these resources. The paper examines the various reasons for marketing electronic information resources, with emphasis on the various, and illustrates marketing strategies used by J.D Rockefeller Research library towards effective utilization of the available resources in supporting research, teaching and learnin...

  3. Alcohol-free fermented blueberry-blackberry beverage phenolic extract attenuates diet-induced obesity and blood glucose in C57BL/6J mice.

    Science.gov (United States)

    Johnson, Michelle H; Wallig, Matthew; Luna Vital, Diego A; de Mejia, Elvira G

    2016-05-01

    The aim of this study was to determine the potential of phenolic compounds from a fermented blackberry-blueberry beverage to reduce diet-induced obesity and hyperglycemia in mice fed a 60% high-fat diet (HFD) for 10weeks after 1week of pretreatment. C57BL/6J mice were randomized into six groups and allowed to drink (ad libitum) an alcohol-free blackberry-blueberry beverage [alcohol-free fermented beverage (AFFB), 8.4mg anthocyanin (ANC)/kg body weight (BW)/day]; three doses of a phenolic extract [postamberlite extract (PAE)] from AFFB at 0.1×, 1× and 2× ANC concentrations; sitagliptin (hypoglycemic positive control); or water (negative control). Weight and fat mass gain were attenuated in mice receiving the highest doses of PAE (18.9mg ANC/kg BW/day, Pfermented blueberry-blackberry beverage had an impact to attenuate the development of obesity and fasting blood glucose in C57BL/6J mice. Copyright © 2016 Elsevier Inc. All rights reserved.

  4. Proteomics of the ripening of blackberry fruits (Rubus sp. grown in México, a first approach

    Directory of Open Access Journals (Sweden)

    2012-09-01

    Full Text Available Blackberry production in Mexico has increased 200 % in the last decade. The main varieties used have been introduced from other countries, and its establishment under the climatic conditions of México has required considerable adaptations to the agronomic management observed in the regions of origin thereof. The essentialchallenge of managing this product is based on the intrinsic characteristics of its soft fruit and its short shelf life, so that knowledge of their maturation process under their growing conditions in Mexico is imperative to achieve and improve handling productivity and fruit quality unto its final destination. The aim of this work was to first address this problem by establishing the conditions of protocols for the analysis of proteins in blackberry fruits during different ripening stages. To accomplish this goal, six stages of fruit ripening were identified for the comercial variety 'Brazos' (considering a range of development from green, small fruits to fruits fully developed and in harvest maturity, a protein extraction was selected and a protein profile was performed by electrophoresis under denaturing conditions. In addition, requirements were established for two-dimensional electrophoresis (2-DE of the extractsobtained by evaluating the conditions of isoelectric focusing and staining methods. According to the results obtained, it was determined to use 400 µg of total protein in IPG strips of 7 cm with a pH range of 3 to 10, using a máximum voltage of 50 000 V, and Coomassie blue staining. A preliminary analysis of the distribution and abundance of the peptides expressed in the six stages of maturation was performed using the KODAK MI software version 4.5, and the results showed that the stage 2 presented the highest number of peptide spots (158, the highest percentage of spots at all stages were observed in a pH range of 5.0 to 6.9 and molecular weight of 30 to 50 kDa. We identified four spots of similar intensity

  5. Structural characterization of blackberry wine polysaccharides and immunomodulatory effects on LPS-activated RAW 264.7 macrophages.

    Science.gov (United States)

    Cordeiro Caillot, Adriana Rute; de Lacerda Bezerra, Iglesias; Palhares, Laís Cristina Gusmão Ferreira; Santana-Filho, Arquimedes Paixão; Chavante, Suely Ferreira; Sassaki, Guilherme Lanzi

    2018-08-15

    Three polysaccharide fractions were isolated from blackberry wine. The crude extract BWPs was obtained with ethanol precipitation and freeze-thawing process, it was then submitted to Fehling treatment, giving soluble BWPFs and insoluble BWPFp fractions. These fractions were characterized by Gas Chromatography-Mass Spectrometry (GC-MS) and Nuclear Magnetic Resonance (NMR). Major polysaccharides were identified for each fraction: mannan, type II arabinogalactan and type I rhamnogalacturonan for BWPs, a mannan formed by a major chain of α-Manp(1 → 6)-linked units, O-2 substituted with α-d-Manp(1 → 2)-linked side chains for BWPFp and a AG II formed by a major chain of β-d-Galp(1 → 3)-linked, substituted at O-6 by side chains of the β-d-Galp(1 → 6)-linked, which then are substituted at O-3 by non-reducing units of α-l-Araf and a RG I, formed by [→4)-α-d-GalpA-(1 → 2)-α-l-Rhap-(1→] n for BWPFs. Anti-inflammatory effects of polysaccharide fractions were evaluated in RAW 264.7 cells. Fractions markedly reduced nitric oxide (NO) and pro-inflammatory cytokine production (TNF-α and IL-1β) in LPS-treated cells. Copyright © 2018 Elsevier Ltd. All rights reserved.

  6. The electronic Trauma Health Record: design and usability of a novel tablet-based tool for trauma care and injury surveillance in low resource settings.

    Science.gov (United States)

    Zargaran, Eiman; Schuurman, Nadine; Nicol, Andrew J; Matzopoulos, Richard; Cinnamon, Jonathan; Taulu, Tracey; Ricker, Britta; Garbutt Brown, David Ross; Navsaria, Pradeep; Hameed, S Morad

    2014-01-01

    Ninety percent of global trauma deaths occur in under-resourced or remote environments, with little or no capacity for injury surveillance. We hypothesized that emerging electronic and web-based technologies could enable design of a tablet-based application, the electronic Trauma Health Record (eTHR), used by front-line clinicians to inform trauma care and acquire injury surveillance data for injury control and health policy development. The study was conducted in 3 phases: 1. Design of an electronic application capable of supporting clinical care and injury surveillance; 2. Preliminary feasibility testing of eTHR in a low-resource, high-volume trauma center; and 3. Qualitative usability testing with 22 trauma clinicians from a spectrum of high- and low-resource and urban and remote settings including Vancouver General Hospital, Whitehorse General Hospital, British Columbia Mobile Medical Unit, and Groote Schuur Hospital in Cape Town, South Africa. The eTHR was designed with 3 key sections (admission note, operative note, discharge summary), and 3 key capabilities (clinical checklist creation, injury severity scoring, wireless data transfer to electronic registries). Clinician-driven registry data collection proved to be feasible, with some limitations, in a busy South African trauma center. In pilot testing at a level I trauma center in Cape Town, use of eTHR as a clinical tool allowed for creation of a real-time, self-populating trauma database. Usability assessments with traumatologists in various settings revealed the need for unique eTHR adaptations according to environments of intended use. In all settings, eTHR was found to be user-friendly and have ready appeal for frontline clinicians. The eTHR has potential to be used as an electronic medical record, guiding clinical care while providing data for injury surveillance, without significantly hindering hospital workflow in various health-care settings. Copyright © 2014 American College of Surgeons. Published

  7. Barriers to electronic access and delivery of educational information in resource constrained public schools: a case of Greater Tubatse Municipality

    CSIR Research Space (South Africa)

    Pholotho, T

    2016-05-01

    Full Text Available Information and Communication Technologies (ICTs) are capable of expanding access to quality education, educational resources and provide teachers with new skills. Nevertheless, a majority of rural public schools have limited ICTs, mainly due...

  8. Electronic Grey Literature in Accelerator Science and Its Allied Subjects : Selected Web Resources for Scientists and Engineers

    CERN Document Server

    Rajendiran, P

    2006-01-01

    Grey literature Web resources in the field of accelerator science and its allied subjects are collected for the scientists and engineers of RRCAT (Raja Ramanna Centre for Advanced Technology). For definition purposes the different types of grey literature are described. The Web resources collected and compiled in this article (with an overview and link for each) specifically focus on technical reports, preprints or e-prints, which meet the main information needs of RRCAT users.

  9. Beginning Smartphone Web Development Developing Applications for iPhone, Android, Palm Pre, BlackBerry, Windows Mobile and Nokia S60

    CERN Document Server

    Federick, G

    2010-01-01

    Today's Web 2.0 applications (think Facebook and Twitter) go far beyond the confines of the desktop and are widely used on mobile devices. The mobile Web has become incredibly popular given the success of the iPhone and BlackBerry, the importance of Windows Mobile, and the emergence of Palm Pre (and its webOS platform). At Apress, we are fortunate to have Gail Frederick of the well-known training site Learn the Mobile Web offer her expert advice in Beginning Smartphone Web Development. In this book, Gail teaches the web standards and fundamentals specific to smartphones and other feature-drive

  10. Blackberry, raspberry and black raspberry polyphenol extracts attenuate angiotensin II-induced senescence in vascular smooth muscle cells.

    Science.gov (United States)

    Feresin, Rafaela G; Huang, Jingwen; Klarich, DawnKylee S; Zhao, Yitong; Pourafshar, Shirin; Arjmandi, Bahram H; Salazar, Gloria

    2016-10-12

    Activation of angiotensin II (Ang II) signaling during aging increases reactive oxygen species (ROS) leading to vascular senescence, a process linked to the onset and progression of cardiovascular diseases (CVD). Consumption of fruits and vegetables, particularly berries, is associated with decreased incidence of CVD, which has mainly been attributed to the polyphenol content of these foods. Thus, the objective of this study was to investigate the role of blackberry (BL), raspberry (RB), and black raspberry (BRB) polyphenol extracts in attenuating Ang II-induced senescence in vascular smooth muscle cells (VSMCs) and to determine the molecular mechanisms involved. BL, RB and BRB polyphenol extracts (200 μg ml -1 ) attenuated Ang II-induced senescence, denoted by decreased number of cells positive for senescence associated β-galactosidase (SA-β-gal) and down-regulation of p21 and p53 expression, which were associated with decreased ROS levels and Ang II signaling. BL polyphenol extract increased superoxide dismutase (SOD) 1 expression, attenuated the up-regulation of Nox1 expression and the phosphorylation of Akt, p38MAPK and ERK1/2 induced by Ang II, and reduced senescence in response to Nox1 overexpression. In contrast, RB and BRB polyphenol extracts up-regulated the expression of SOD1, SOD2, and glutathione peroxidase 1 (GPx1), but exerted no effect on Nox1 expression nor on senescence induced by Nox1 overexpression. BRB reduced signaling similar to BL, while RB was unable to reduce Akt phosphorylation. Furthermore, we demonstrated that inhibition of Akt, p38MAPK and ERK1/2 as well as down-regulation of Nox1 by siRNA prevented senescence induced by Ang II. Our findings indicate that Ang II-induced senescence is attenuated by BL polyphenols through a Nox1-dependent mechanism and by RB and BRB polyphenols in a Nox1-independent manner, likely by increasing the cellular antioxidant capacity.

  11. Web Accessibility Issues for Higher & Further Education. EDNER (Formative Evaluation of the Distributed National Electronic Resource) Project. Issues Paper.

    Science.gov (United States)

    Manchester Metropolitan Univ. (England).

    This issues paper, sixth in a series of eight, is intended to distill formative evaluation questions on topics that are central to the development of the higher and further education information environment in the United Kingdom. In undertaking formative evaluation studies, the Formative Evaluation of the Distributed National Electronic Resource…

  12. Analyzing the Academic Research Trends by Using University Digital Resources: A Bibliometric Study of Electronic Commerce in China

    Science.gov (United States)

    Fatima, Anam; Abbas, Asad; Ming, Wan; Zaheer, Ahmad Nawaz; Akhtar, Masood-ul-Hassan

    2017-01-01

    Technology plays a vital role in every field of life especially in business and education. Electronic commerce (EC) begins in the year of 1991 right after internet was introduced for commercial use. It is known to be the 12th five years' plan (2011 to 2015) of Chinese Ministry of Industry and Information Technology. The main "objective"…

  13. Clinician‐selected Electronic Information Resources do not Guarantee Accuracy in Answering Primary Care Physicians’ Information Needs. A review of: McKibbon, K. Ann, and Douglas B. Fridsma. “Effectiveness of Clinician‐selected Electronic Information Resources for Answering Primary Care Physicians’ Information Needs.” Journal of the American Medical Informatics Association 13.6 (2006: 653‐9.

    Directory of Open Access Journals (Sweden)

    Martha Ingrid Preddie

    2008-03-01

    Full Text Available Objective – To determine if electronic information resources selected by primary care physicians improve their ability to answer simulated clinical questions.Design – An observational study utilizing hour‐long interviews and think‐aloud protocols.Setting – The offices and clinics of primary care physicians in Canada and the United States.Subjects – Twenty‐five primary care physicians of whom 4 were women, 17 were from Canada, 22 were family physicians,and 24 were board certified.Methods – Participants provided responses to 23 multiple‐choice questions. Each physician then chose two questions and looked for the answers utilizing information resources of their own choice. The search processes, chosen resources and search times were noted. These were analyzed along with data on the accuracy of the answers and certainties related to the answer to each clinical question prior to the search.Main results – Twenty‐three physicians sought answers to 46 simulated clinical questions. Utilizing only electronic information resources, physicians spent a mean of 13.0 (SD 5.5 minutes searching for answers to the questions, an average of 7.3(SD 4.0 minutes for the first question and 5.8 (SD 2.2 minutes to answer the second question. On average, 1.8 resources were utilized per question. Resources that summarized information, such as the Cochrane Database of Systematic Reviews, UpToDate and Clinical Evidence, were favored 39.2% of the time, MEDLINE (Ovid and PubMed 35.7%, and Internet resources including Google 22.6%. Almost 50% of the search and retrieval strategies were keyword‐based, while MeSH, subheadings and limiting were used less frequently. On average, before searching physicians answered 10 of 23 (43.5% questions accurately. For questions that were searched using clinician‐selected electronic resources, 18 (39.1% of the 46 answers were accurate before searching, while 19 (42.1% were accurate after searching. The difference of

  14. OSMODESHIDRATACIÓN DE MORA DE CASTILLA (Rubus glaucus Benth CON TRES AGENTES EDULCORANTES OSMODEHYDRATION OF BLACKBERRY (Rubus glaucus Benth WITH THREE SWEETENING AGENTS

    Directory of Open Access Journals (Sweden)

    Diana Patricia Giraldo Bedoya

    2004-06-01

    Full Text Available La investigación sobre la deshidratación osmótica de mora de castilla con tres jarabes diferentes, sacarosa (js, sacarosa invertida (jsi y miel de caña (jmc, en iguales condiciones iniciales de concentración, 70 grados Brix, temperatura promedio de 20°C, y humedad relativa de 65% desarrollada en el Laboratorio de Frutas y Hortalizas de la Universidad Nacional de Colombia, Sede Medellín, permitió conocer que el jarabe de miel de caña presenta mayor poder osmótico (69,2% que los jarabes de sacarosa invertida (54,5% y sacarosa (50%, medido a partir del porcentaje de pérdida de peso de la mora. Con el proceso de estabilización del producto secado por convección forzada con aire caliente a 1,5 ms-1 de velocidad y 55°C de temperatura, durante 24 horas, logrando disminuir la humedad de los tres productos hasta 27,3%hbh, 30,8%hbh y 25,9%hbh para los jarabes de sacarosa, sacarosa invertida y miel de caña, respectivamente y mejorar las condiciones de empaque y almacenamiento, haciendo más estable el producto al ataque microbiano. Las pruebas preliminares de conservación se efectuaron en envases de vidrio de 250g durante 15 días. Se realizó además una prueba sensorial de ordenación con 10 jueces entrenados para la evaluación de las moras deshidratadas osmóticamente antes y después de la prueba de empaque y almacenamiento y como resultado se obtuvo que antes de la prueba de empaque y almacenamiento, el producto de mayor aceptación fue el correspondiente a las moras osmodeshidratadas en jarabe de sacarosa invertida y luego del empaque, la mayor aceptación fue para las moras osmodeshidratadas en jarabe de sacarosa.Studies of osmotic dehydration of blackberry with three different syrups, sucrose (ss, reverse sucrose (rss, and cane syrup (cs with identical initial concentration conditions, 70°Brix, mean temperature of 20°C, and relative humidity of 65% were undertaken in the Fruit and Vegetable Laboratory of the Universidad Nacional

  15. Rheological and thermophysical properties of blackberry juice Propriedades reológicas e termofísicas de suco de amora

    Directory of Open Access Journals (Sweden)

    Renato Alexandre Ferreira Cabral

    2007-09-01

    Full Text Available Rheological and thermophysical properties were determined for blackberry juice, which was produced from blackberry fruit at 9.1 ± 0.5 °Brix and density of 1.0334 ± 0.0043 g cm-3. The concentration process was performed using a roto evaporator, under vacuum, to obtain concentrated juice at about 60 °Brix. In order to obtain different concentrations, concentrated juice was diluted with distilled water. Rheological measurements were carried out using a Rheotest 2.1 Searle type rheometer. In the tested ranges, the samples behaved as pseudoplastic fluids, and the Power-Law model was satisfactorily fitted to the experimental data. The friction factor was measured for blackberry juice in laminar flow conditions of pseudoplastic behavior. Thermal conductivity, thermal diffusivity and density of blackberry juice at 9.4 to 58.4 °Brix were determined, in triplicate, at 0.5 to 80.8 °C. Polynomial regression was performed to fit experimental data obtaining a good fit. Both temperature and concentration showed a strong influence on thermophysical properties of blackberry juice. Calculated apparent specific heat values varied from 2.416 to 4.300 kJ.kg-1 °C in the studied interval.As propriedades reológicas e termofísicas foram determinadas para suco de amora produzido a partir da fruta com 9.1 ± 0.5 °Brix e densidade de 1,0334 ± 0,0043 g cm-3. O processo de concentração foi realizado utilizando-se um roto evaporador, sob vácuo, obtendo-se o suco concentrado em aproximadamente 60 °Brix. As diferentes concentrações foram obtidas a partir da diluição do suco concentrado em água destilada. As medidas reológicas foram conduzidas utilizando-se o reômetro Rheotest 2.1 do tipo Searle. Em todos os experimentos as amostras apresentaram um comportamento pseudoplástico, e o modelo da Lei da Potência foi ajustado satisfatoriamente aos dados experimentais. O fator de atrito foi medido para o suco em regime laminar com comportamento pseudopl

  16. Chemical characterization and mineral levels in the fruits of blackberry cultivars grown in a tropical climate at an elevation - doi: 10.4025/actasciagron.v35i2.16630

    Directory of Open Access Journals (Sweden)

    Mayara Neves Santos Guedes

    2013-02-01

    Full Text Available Sensorial attributes such as color, texture, acidity and nutritional composition are essential quality components for blackberry (Rubus spp.. The mineral content and quality of fruits of different blackberry cultivars produced in Lavras, Southern Minas Gerais, in a tropical climate at an elevation (Cwb, according to Köppen were analyzed. The analyzed minerals were phosphorus (P, potassium (K, calcium (Ca, magnesium (Mg, zinc (Zn, manganese (Mn, copper (Cu and iron (Fe. Additionally, chemical characteristics, the total acidity (citric acid, pH, soluble solids (°Brix and vitamin C (ascorbic acid level, and sensory characteristics, color (L*a*b and firmness (N were also evaluated. According to the results, the Choctaw and Xavante blackberry cultivars demonstrated the highest mineral contents, the Caingangue cultivar showed the highest soluble solid content, and the Ebano cultivar exhibited the highest vitamin C concentration and firmer fruits. The chemical variables in the fruits of the different blackberry cultivars presented little significant correlation with the contents of macrominerals present, whereas the opposite was obtained for the micronutrients. However, the chemical characteristics combined with the nutritional characteristics can be proposed as an excellent tool for the selection of cultivars of superior quality and high nutritional value.

  17. SAGES: A Suite of Freely-Available Software Tools for Electronic Disease Surveillance in Resource-Limited Settings

    Science.gov (United States)

    2011-05-10

    3] Recently, the emergence of the novel 2009 influenza A ( H1N1 ) virus and the SARS coronavirus have demonstrated how rapidly pathogens can spread...standards in both minimum data sets for disease surveillance and routine diagnosis and care. Analysis & Visualization. As previously discussed, the...g002 SAGES Electronic Disease Surveillance PLoS ONE | www.plosone.org 3 May 2011 | Volume 6 | Issue 5 | e19750 for pandemic influenza as well as

  18. Share and share alike: encouraging the reuse of academic resources through the Scottish electronic Staff Development Library

    Directory of Open Access Journals (Sweden)

    Lorna M. Campbell

    2001-12-01

    Full Text Available The Scottish electronic Staff Development Library (http://www.sesdl.scotcit.acuk is an ongoing collaborative project involving the Universities of Edinburgh, Paisley and Strathclyde which has been funded by SHEFC as part of their current ScotCIT Programme (http:llwww.scotcit.ac.uk. This project is being developed in response to the increasing demand for flexible, high-quality staff development materials.

  19. Multiplicação in vitro de amoreira-preta cultivar Brazos In vitro multiplication of blackberry cv. Brazos

    Directory of Open Access Journals (Sweden)

    Fabiola Villa

    2006-04-01

    Full Text Available A micropropagação da amoreira-preta pode gerar plantas livres de vírus e em curto espaço de tempo. Com o objetivo de aprimorar técnicas de micropropagação de amoreira-preta cultivar Brazos (Rubus idaeus L., segmentos nodais, oriundos de plântulas preestabelecidas in vitro foram excisados e inoculados em meio WPM (0, 50, 100, 150 e 200%, suplementado com diferentes concentrações de BAP (0; 0,5; 1,0; 2,0 e 4,0 mg L-1. Após a inoculação, os explantes foram transferidos para sala de crescimento a 27±1ºC, irradiância de 35 mmol m² s¹ e fotoperíodo de 16 horas, onde permaneceram por 60 dias. O delineamento experimental utilizado foi inteiramente casualizado, utilizando-se de quatro repetições com quatro explantes cada. Maior número de brotos foi proporcionado com 1,0 mg L-1 de BAP associado a 100% de meio WPM e maior comprimento médio dos brotos após 60 dias foi verificado em 1,0 mg L-1 de BAP associado a 200% de meio WPM. Maior peso de matéria seca da parte aérea foi obtido em meio WPM 200% acrescido de 0,5 mg L-1 de BAP.With the objective of multiplying blackberry cv. Brazos, nodal segments, coming from in vitro plants previously selected, were excised and inoculated in WPM culture medium (0, 50, 100, 150 and 200%, supplemented with different concentrations of BAP (0; 0,5; 1,0; 2,0 and 4,0 mg L-1. After inoculation, the explants were transferred to culture room, at 27±1ºC temperature, 35 mmol m² s¹ ofirradiance and photoperiod of 16 hours, for 60 days. The experimental was a design randomized complete block, with four replications and four explants each. Greater number of sprouts was provided with 1,0 mg L-1 of BAP associated with 100% WPM culture medium and larger sprouts length average after 60 days were verified in 1,0 mg L-1 of BAP associated with 200% WPM culture medium. Higher dry matter weight of the aerial part was obtained in 200% WPM culture medium added with 0,5 mg L-1 of BAP.

  20. Success factors for implementing and sustaining a mature electronic medical record in a low-resource setting: a case study of iSanté in Haiti.

    Science.gov (United States)

    deRiel, E; Puttkammer, N; Hyppolite, N; Diallo, J; Wagner, S; Honoré, J G; Balan, J G; Celestin, N; Vallès, J S; Duval, N; Thimothé, G; Boncy, J; Coq, N R L; Barnhart, S

    2018-03-01

    Electronic health information systems, including electronic medical records (EMRs), have the potential to improve access to information and quality of care, among other things. Success factors and challenges for novel EMR implementations in low-resource settings have increasingly been studied, although less is known about maturing systems and sustainability. One systematic review identified seven categories of implementation success factors: ethical, financial, functionality, organizational, political, technical and training. This case study applies this framework to iSanté, Haiti's national EMR in use in more than 100 sites and housing records for more than 750 000 patients. The author group, consisting of representatives of different agencies within the Haitian Ministry of Health (MSPP), funding partner the Centers for Disease Control and Prevention (CDC) Haiti, and implementing partner the International Training and Education Center for Health (I-TECH), identify successes and lessons learned according to the seven identified categories, and propose an additional cross-cutting category, sustainability. Factors important for long-term implementation success of complex information systems are balancing investments in hardware and software infrastructure upkeep, user capacity and data quality control; designing and building a system within the context of the greater eHealth ecosystem with a plan for interoperability and data exchange; establishing system governance and strong leadership to support local system ownership and planning for system financing to ensure sustainability. Lessons learned from 10 years of implementation of the iSanté EMR system are relevant to sustainability of a full range of increasingly interrelated information systems (e.g. for laboratory, supply chain, pharmacy and human resources) in the health sector in low-resource settings. © The Author 2017. Published by Oxford University Press in association with The London School of Hygiene

  1. Crescimento in vitro de amoreira-preta: efeito de reguladores de crescimento e da cultivar In vitro blackberry growing: effect of growth regulators and cultivar

    Directory of Open Access Journals (Sweden)

    Fabíola Villa

    2008-12-01

    was developed with the aim of improving technics of in vitro propagation of blackberry. So, one tested in an experiment the influence of five different ANA concentrations (0; 0,1; 0,5; 1,0 and 1,5 mg L-1 and five AG3 (0; 2,0; 4,0; 6,0 and 8,0 mg L-1, added to the culture medium MS, to the blackberry cv. Ebano and; in a second experiment was tested six different ANA concentrations (0; 0,1; 0,5; 1,0; 1,5 and 2,0 mg L-1 and two blackberry cv. (Tupy and Brazos, in vitro plants growing. Nodal segments with 2 cm, of in vitro plants, were excised and inoculated, in a MS culture medium. The experiment was entirely randomized blocks using three explants by repetition and four repetitions per treatment. The pH of the culture medium was adjusted for 5.8 after the addition of 6 g L-1 agar and 30 g L-1 sucrose, happening sterilization later at 121ºC and 1 atm per 20 minutes. After the inoculation, the tubes were maintained by 60 days, in growth room at 27 ± 1ºC, irradiance of 35 mol.m-2.s-1 and photoperiod of 16 hours, being evaluated the number of leaves, number of roots, length of the largest root, length of the aerial part, dry weight of the fresh and dry matter of the aerial part. High concentrations of AG3 associated to low concentrations of ANA promoted larger length of the aerial part of the blackberry cv. Ebano. Larger length of the aerial part of ' Brazos' was verified in the presence of 1.0 mg L-1 ANA. Appearance of callus was verified in blackberry cv. Ebano in all the AG3 concentrations associated to 0.5-1.5 mg L-1 ANA and in cv. Tupy and Brazos in all the ANA concentrations. Better results in the blackberry micropropagation cv. Tupy and Ebano were obtained with the addition of 1.0 mg L-1 ANA and better results in the blackberry rooting cv. Ebano were obtained with low ANA concentrations and AG3 absence.

  2. A partnership model for implementing electronic health records in resource-limited primary care settings: experiences from two nurse-managed health centers.

    Science.gov (United States)

    Dennehy, Patricia; White, Mary P; Hamilton, Andrew; Pohl, Joanne M; Tanner, Clare; Onifade, Tiffiani J; Zheng, Kai

    2011-01-01

    To present a partnership-based and community-oriented approach designed to ease provider anxiety and facilitate the implementation of electronic health records (EHR) in resource-limited primary care settings. The approach, referred to as partnership model, was developed and iteratively refined through the research team's previous work on implementing health information technology (HIT) in over 30 safety net practices. This paper uses two case studies to illustrate how the model was applied to help two nurse-managed health centers (NMHC), a particularly vulnerable primary care setting, implement EHR and get prepared to meet the meaningful use criteria. The strong focus of the model on continuous quality improvement led to eventual implementation success at both sites, despite difficulties encountered during the initial stages of the project. There has been a lack of research, particularly in resource-limited primary care settings, on strategies for abating provider anxiety and preparing them to manage complex changes associated with EHR uptake. The partnership model described in this paper may provide useful insights into the work shepherded by HIT regional extension centers dedicated to supporting resource-limited communities disproportionally affected by EHR adoption barriers. NMHC, similar to other primary care settings, are often poorly resourced, understaffed, and lack the necessary expertise to deploy EHR and integrate its use into their day-to-day practice. This study demonstrates that implementation of EHR, a prerequisite to meaningful use, can be successfully achieved in this setting, and partnership efforts extending far beyond the initial software deployment stage may be the key.

  3. Determination of the bioactive compounds, antioxidant activity and chemical composition of Brazilian blackberry, red raspberry, strawberry, blueberry and sweet cherry fruits.

    Science.gov (United States)

    de Souza, Vanessa Rios; Pereira, Patrícia Aparecida Pimenta; da Silva, Thais Lomônaco Teodoro; de Oliveira Lima, Luiz Carlos; Pio, Rafael; Queiroz, Fabiana

    2014-08-01

    This study aimed to evaluate the chemical composition, identify the bioactive compounds and measure the antioxidant activity present in blackberry, red raspberry, strawberry, sweet cherry and blueberry fruits produced in the subtropical areas of Brazil and to verify that the chemical properties of these fruit are similar when compared to the temperate production zones. Compared with berries and cherries grown in temperate climates, the centesimal composition and physical chemical characteristics found in the Brazilian berries and cherries are in agreement with data from the literature. For the mineral composition, the analyzed fruits presented lower concentrations of P, K, Ca, Mg and Zn and higher levels of Fe. The values found for the bioactive compounds generally fit the ranges reported in the literature with minor differences. The greatest difference was found in relation to ascorbic acid, as all fruits analyzed showed levels well above those found in the literature. Copyright © 2014 Elsevier Ltd. All rights reserved.

  4. Substratos no enraizamento de estacas herbáceas de amora-preta Xavante Substrates on rooting of blackberry Xavante herbaceous cuttings

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    Lilian Yukari Yamamoto

    2013-01-01

    Full Text Available A amora-preta (Rubus spp. destaca-se entre as espécies que apresentam boas perspectivas de cultivo em áreas de agricultura familiar. Visando a otimizar a multiplicação de mudas dessa espécie, o objetivo deste trabalho foi avaliar o uso de substratos e concentrações do ácido indolbutírico (AIB no enraizamento de estacas de amora-preta Xavante. O delineamento experimental foi o inteiramente casualizado em arranjo fatorial 3x2 (três tipos de substratos e duas concentrações de AIB, com cinco repetições de sete estacas, sendo adotados os fatores: tipos de substratos (casca de arroz carbonizada, vermiculita grânulos médios e fibra de coco e tratadas ou não com AIB (0 e 1000mg L-1. Após 80 dias, foram avaliadas as variáveis: sobrevivência das estacas; retenção foliar; estacas enraizadas; número de raízes por estaca; comprimento da maior raiz; massa seca das raízes por estaca; e pH; condutividade elétrica; densidade e capacidade de retenção de água dos substratos. Não houve influência dos substratos e da aplicação de AIB sobre a porcentagem de estacas enraizadas, verificando-se alta eficiência no enraizamento das estacas de amora-preta Xavante (86,2%. Para a porcentagem de sobrevivência das estacas, o melhor resultado foi obtido sem a aplicação de AIB. Conclui-se que a amora-preta Xavante pode ser propagada por estaquia herbácea com eficiência, sem o uso de AIB, utilizando-se preferencialmente o substrato casca de arroz carbonizada como opção de baixo custo.The blackberry (Rubus spp. stands out among the species that have good prospects for cultivation in areas of family farm agriculture. In order to optimize the multiplication of seedlings of this species, the aim of this research was to evaluate the use of different substrates and concentrations of indolebutyric acid (IBA on the rooting of cuttings of blackberry Xavante. The experiment was performed using the completely randomized design in a 3x2 factorial

  5. LICOR DE MORA DE CASTILLA (Rubus glaucus Benth CON DIFERENTES PORCENTAJES DE PULPA BLACKBERRY LIQUOR (Rubus glaucus Benth WITH DIFFERENT PULP PERCENTAGES

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    Álvaro Montoya Gómez

    2005-12-01

    Full Text Available La mora de Castilla (Rubus glaucus Benth es una fruta de interés comercial y altamente perecedera, que presenta deterioro debido a su fragilidad e inadecuado manejo poscosecha, cantidades apreciables de fruta son afectadas, básicamente en sus características físicas, siendo este producto apto para el procesamiento industrial. Veinte kg de mora fueron despulpados, homogenizados y caracterizada la pulpa, determinando; grados brix de 6,0; porcentaje de acidez de 2,91 % y densidad de 0,991 g/ml en promedio. Se formularon licores, con una participación de la pulpa del 25 %, 30 %, 35 %, 40 %, 45 %, 50 % y 55 % iniciando con 35 °Brix, para todos los casos en el mosto fermentable, ajustando las formulaciones con sacarosa; la levadura inoculada fue Saccharomyces cerevisiae Meyen ex E.C. Hansen en concentración del 0,2 %; la fermentación se llevó a cabo en reactores con capacidad de 2 litros, con desfogue de manguera de látex, el mosto fermentable fue dejado en los reactores durante 20 semanas, luego los licores fueron filtrados y caracterizados físico-químicamente, evaluando el porcentaje de alcohol por destilación, encontrando que el porcentaje de 40 % de participación de pulpa, fue el de mayor concentración con 8,36 % de volumen de alcohol en promedio. Los resultados estadísticos mostraron una diferencia significativa entre los porcentajes de participación de pulpa y su influencia sobre la producción de alcohol para los valores de 25 % y 30 % con respecto a los porcentajes 35 %, 40 %, 45 %, 50 % y 55 %. Un modelo matemático lineal apropiado para la producción de alcohol en función de la participación de pulpa fue obtenido. La prueba sensorial con 10 jueces, mostró que el licor preparado con 35 % de participación de pulpa, fue el de mayor aceptación.The blackberry (Rubus glaucus Benth is a fruit of commercial interest that is highly perishable, showing appreciable damage due to fragileness and inadequate pos-harvesting handling

  6. Utility of the electronic information resource UpToDate for clinical decision-making at bedside rounds.

    Science.gov (United States)

    Phua, J; See, K C; Khalizah, H J; Low, S P; Lim, T K

    2012-02-01

    Clinical questions often arise at daily hospital bedside rounds. Yet, little information exists on how the search for answers may be facilitated. The aim of this prospective study was, therefore, to evaluate the overall utility, including the feasibility and usefulness of incorporating searches of UpToDate, a popular online information resource, into rounds. Doctors searched UpToDate for any unresolved clinical questions during rounds for patients in general medicine and respiratory wards, and in the medical intensive care unit of a tertiary teaching hospital. The nature of the questions and the results of the searches were recorded. Searches were deemed feasible if they were completed during the rounds and useful if they provided a satisfactory answer. A total of 157 UpToDate searches were performed during the study period. Questions were raised by all ranks of clinicians from junior doctors to consultants. The searches were feasible and performed immediately during rounds 44% of the time. Each search took a median of three minutes (first quartile: two minutes, third quartile: five minutes). UpToDate provided a useful and satisfactory answer 75% of the time, a partial answer 17% of the time and no answer 9% of the time. It led to a change in investigations, diagnosis or management 37% of the time, confirmed what was originally known or planned 38% of the time and had no effect 25% of the time. Incorporating UpToDate searches into daily bedside rounds was feasible and useful in clinical decision-making.

  7. PRODUCTIVITY IN TRADITIONALLY DEVELOPED CROPS: THE BLACKBERRIES CASE IN THE MUNICIPALITY OF ENVIGADO, ANTIOQUIA-COLOMBIA LA PRODUCTIVIDAD EN EL DESARROLLO TRADICIONAL DE LOS CULTIVOS: EL CASO DE LA MORA EN EL MUNICIPIO DE ENVIGADO, ANTIOQUIA-COLOMBIA

    Directory of Open Access Journals (Sweden)

    Mauricio López González

    2009-12-01

    Full Text Available A vast area of the Municipality of Envigado, Antioquia-Colombia, is considered a rural zone. In this zone, the districts of Perico and Pantanillo stand out for their traditional production of blackberry crop. In the past few years, blackberry producers have encountered new major competitors due to elements that have strengthened the competition. Factors such as: the technification of crops, urban infrastructure improvements, and the establishment of competing productive chains in adjacent municipalities. Nevertheless, despite still being developed with very traditional techniques, the blackberry crop is still profitable for local producers. Therefore, the objective of this work is to calculate the actual level of blackberry productivity and to identify some of the principal determinants of said productivity. For this purpose, strategic information from a representative number of blackberry producing farms was collected. The research shows that some factors have become determinant differentiators of blackberry production. Among these factors are: the use of inputs, soil qualities and level of associativity.Una extensa área del Municipio de Envigado en Antioquia; Colombia; es considerada como zona rural. En dicha zona, las veredas de Perico y Pantanillo, se destacan por la producción tradicional del cultivo de mora. En los últimos años, los productores de mora han encontrado mayores competidores, siendo la tecnificación de los cultivos, las mejoras en infraestructura urbana y el montaje de cadenas productivas competidoras en municipios aledaños, algunos de los elementos que han fortalecido la mayor competencia. Sin embargo, pese a ser un cultivo desarrollado con técnicas aún muy tradicionales, el cultivo de mora continua siendo rentable. Así, el objetivo de este trabajo, consiste en calcular el actual nivel de productividad de la mora e identificar algunos de los principales determinantes de dicha productividad. Para tal fin se compil

  8. Comprehensive evaluation of electronic medical record system use and user satisfaction at five low-resource setting hospitals in ethiopia.

    Science.gov (United States)

    Tilahun, Binyam; Fritz, Fleur

    2015-05-25

    Electronic medical record (EMR) systems are increasingly being implemented in hospitals of developing countries to improve patient care and clinical service. However, only limited evaluation studies are available concerning the level of adoption and determinant factors of success in those settings. The objective of this study was to assess the usage pattern, user satisfaction level, and determinants of health professional's satisfaction towards a comprehensive EMR system implemented in Ethiopia where parallel documentation using the EMR and the paper-based medical records is in practice. A quantitative, cross-sectional study design was used to assess the usage pattern, user satisfaction level, and determinant factors of an EMR system implemented in Ethiopia based on the DeLone and McLean model of information system success. Descriptive statistical methods were applied to analyze the data and a binary logistic regression model was used to identify determinant factors. Health professionals (N=422) from five hospitals were approached and 406 responded to the survey (96.2% response rate). Out of the respondents, 76.1% (309/406) started to use the system immediately after implementation and user training, but only 31.7% (98/309) of the professionals reported using the EMR during the study (after 3 years of implementation). Of the 12 core EMR functions, 3 were never used by most respondents, and they were also unaware of 4 of the core EMR functions. It was found that 61.4% (190/309) of the health professionals reported over all dissatisfaction with the EMR (median=4, interquartile range (IQR)=1) on a 5-level Likert scale. Physicians were more dissatisfied (median=5, IQR=1) when compared to nurses (median=4, IQR=1) and the health management information system (HMIS) staff (median=2, IQR=1). Of all the participants, 64.4% (199/309) believed that the EMR had no positive impact on the quality of care. The participants indicated an agreement with the system and information

  9. 圖書館事業專欄/Marketing of Electronic Information Resources: A Case of The J.D. Rockefeller Research Library, Egerton University/Nerisa Kamar

    Directory of Open Access Journals (Sweden)

    Nerisa Kamar

    2008-04-01

    Full Text Available

    This paper gives a brief overview of electronic information resources and services offered by The J.D. Rockefeller Research Library at Egerton University and the marketing of these resources. The paper examines the various reasons for marketing electronic information resources, with emphasis on the various, and illustrates marketing strategies used by J.D Rockefeller Research library towards effective utilization of the available resources in supporting research, teaching and learning. These strategies include use of posters, notices, brochures, telephone calls, Current Awareness Services (CAS, workshops and seminars, and decentralization of services, among others. It concludes with a discussion of cost effective use of these strategies in research and teaching.

    頁次:89-93

  10. Randomized Controlled Trial of Electronic Care Plan Alerts and Resource Utilization by High Frequency Emergency Department Users with Opioid Use Disorder

    Directory of Open Access Journals (Sweden)

    Niels Rathlev, MD

    2016-01-01

    Full Text Available Introduction: There is a paucity of literature supporting the use of electronic alerts for patients with high frequency emergency department (ED use. We sought to measure changes in opioid prescribing and administration practices, total charges and other resource utilization using electronic alerts to notify providers of an opioid-use care plan for high frequency ED patients. Methods: This was a randomized, non-blinded, two-group parallel design study of patients who had 1 opioid use disorder and 2 high frequency ED use. Three affiliated hospitals with identical electronic health records participated. Patients were randomized into “Care Plan” versus “Usual Care groups”. Between the years before and after randomization, we compared as primary outcomes the following: 1 opioids (morphine mg equivalents prescribed to patients upon discharge and administered to ED and inpatients; 2 total medical charges, and the numbers of; 3 ED visits, 4 ED visits with advanced radiologic imaging (computed tomography [CT] or magnetic resonance imaging [MRI] studies, and 5 inpatient admissions. Results: A total of 40 patients were enrolled. For ED and inpatients in the “Usual Care” group, the proportion of morphine mg equivalents received in the post-period compared with the pre-period was 15.7%, while in the “Care Plan” group the proportion received in the post-period compared with the pre-period was 4.5% (ratio=0.29, 95% CI [0.07-1.12]; p=0.07. For discharged patients in the “Usual Care” group, the proportion of morphine mg equivalents prescribed in the post-period compared with the pre-period was 25.7% while in the “Care Plan” group, the proportion prescribed in the post-period compared to the pre-period was 2.9%. The “Care Plan” group showed an 89% greater proportional change over the periods compared with the “Usual Care” group (ratio=0.11, 95% CI [0.01-0.092]; p=0.04. Care plans did not change the total charges, or, the numbers

  11. There is a Relationship between Resource Expenditures and Reference Transactions in Academic Libraries. A Review of: Dubnjakovic, A. (2012. Electronic resource expenditure and the decline in reference transaction statistics in academic libraries. Journal of Academic Librarianship, 38(2, 94-100. doi:10.1016/j.acalib.2012.01.001

    Directory of Open Access Journals (Sweden)

    Annie M. Hughes

    2013-03-01

    Full Text Available Objective – To provide an analysis of the impact of expenditures on electronic resourcesand gate counts on the increase or decrease in reference transactions.Design – Analysis of results of existing survey data from the National Center for Educational Statistics (NCES 2006 Academic Library Survey(ALS.Setting – Academic libraries in the United States.Subjects – 3925 academic library respondents.Methods – The author chose to use survey data collected from the 2006 ALS conducted bythe NCES. The survey included data on various topics related to academic libraries, but in the case of this study, the author chose to analyze three of the 193 variables included. The three variables: electronic books expenditure, computer hardware and software, and expenditures on bibliographic utilities, were combined into one variable called electronic resource expenditure. Gate counts were also considered as a variable. Electronic resource expenditure was also split as a variable into three groups: low, medium, and high. Multiple regression analysis and general linear modeling, along with tests of reliability, were employed. Main Results – The author determined that low, medium, and high spenders with regard to electronic resources exhibited differences in gate counts, and gate counts have an effect on reference transactions in any given week. Gate counts tend to not have much of an effect on reference transactions for the higher spenders, and higher spenders tend to have a higher number of reference transactions overall. Low spenders have lower gate counts and also a lower amount of reference transactions.Conclusion – The findings from this study show that academic libraries spending more on electronic resources also tend to have an increase with regard to reference transactions. The author also concludes that library spaces are no longer the determining factor with regard to number of reference transactions. Spending more on electronic resources is

  12. Sodium alginate edible coating for blackberry (Rubus ulmifolius fruits / Revestimento comestível de alginato de sódio para frutos de amorapreta (Rubus ulmifolius

    Directory of Open Access Journals (Sweden)

    Fábio Yamashita

    2008-08-01

    Full Text Available The objective of this work was to check the physical, chemical, microbiological and sensorial characteristics changes of blackberries in natura and coated with sodium alginate edible coating during refrigerated storage. Fruits of blackberries cv. Comanche were sanitized and coated with sodium alginate ( % w/w, sodium alginate plus potassium sorbate (0.1% w/w solutions and fruits in natura not sanitized, that served as control. Sensorial, microbiological and physical-chemical analysis of the fruits were made during 18 days storage at 0°C. After this period the fruits showed good acceptance, according to sensorial evaluation of flavor and appearance, and showed maximum counts of 3.0.108 cfu/g for molds and yeasts and .0.107 cfu/g for psicrotrofic microorganisms. Control fruits had microbiological counts lower than the coated ones because they were less manipulated. Blackberry fruits coated with sodium alginate showed sensorial acceptance and physical and chemical characteristics similar of the fruits in natura, being an alternative to produce minimally processed fruits ready-to-eat.O objetivo do trabalho foi acompanhar as alterações das características físicas, químicas, microbiológicas e sensoriais de frutos de amora-preta in natura e revestidas com cobertura comestível a base de alginato de sódio ao longo da armazenagem sob refrigeração. Frutos de amora-preta cultivar Comanche foram higienizados e revestidos com solução de alginato de sódio ( % p/p, alginato de sódio ( % p/p + conservador sorbato de potássio (0,1% p/p e frutos in natura sem tratamento fitossanitário, que serviram de controle. As análises sensoriais, microbiológicas e físico-químicas dos frutos foram realizadas ao longo da armazenagem a 0oC por 18 dias. Após este período, tanto os frutos revestidos como os não revestidos apresentaram boa aceitação, de acordo com a avaliação sensorial de sabor e aparência, e apresentaram contagens totais máximas de ,0

  13. Political Unrest and Educational Electronic Resource Usage in a Conflict Zone, Kashmir (Indian Administered Kashmir): Log Analysis as Politico Analytical Tool=Hindistan Tarafından Yönetilen Keşmir Anlaşmazlık Bölgesi’nde Siyasi Karışıklık ve Eğitimle İlgili Elektronik Kaynakların Kullanımı: Siyasi Analiz Aracı Olarak Log Analizleri

    OpenAIRE

    Sumeer Gul; Samrin Nabi; Samina Mushtaq; Tariq Ahmad Shah; Suhail Ahmad

    2013-01-01

    Electronic resource usage has proved as one of the best decision making tools in the library setups. Electronic resource usage in relation to the political disturbance can act as one of the tools to highlight the impact of political disturbance on educational setups in general and the electronic resource usage in particular. The study takes a serious look in the electronic resource usage in Kashmir and the impact of unrest on it. The paper highlights a relational platform between educat...

  14. Chemical Characteristics of Cold-Pressed Blackberry, Black Raspberry, and Blueberry Seed Oils and the Role of the Minor Components in Their Oxidative Stability.

    Science.gov (United States)

    Li, Quanquan; Wang, Jiankang; Shahidi, Fereidoon

    2016-07-06

    The chemical characteristics of cold-pressed blackberry, black raspberry, and blueberry seed oils were evaluated for their fatty acid composition, positional distribution of fatty acids, triacylglycerol (TAG) profile, and minor component profile. The role of minor components, including tocols and pigments, on the oxidative stability was also investigated using high-temperature- and fluorescent-lighting-induced oxidation before and after tested berry seed oils were stripped of their minor components. The results indicated that all tested berry seed oils contained significant levels of palmitic (C16:0), stearic (C18:0), oleic (18:1), linoleic (C18:2ω-6), and α-linolenic (C18:3ω-3) acids, along with a favorable ratio of ω-6/ω-3 fatty acids (1.49-3.86); palmitic, stearic, oleic, and α-linolenic acids were predominantly distributed on the terminal positions. Six TAGs, namely, LnLnLn, LnLLn, LLLn, LLL, OLL, and OLLn, were the major species detected in the tested berry seed oils. Total tocol contents were 286.3-1302.9 mg/kg, which include α-, γ-, and δ-tocopherols as well as δ-tocotrienol. Oxidative stability of the three berry seed oils was compromised after the removal of tocols under high-temperature-induced oxidation, while the loss of pigments (chlorophylls) led to weak oxidative stability when exposed to fluorescent lights.

  15. Interactive Electronic Decision Trees for the Integrated Primary Care Management of Febrile Children in Low Resource Settings - Review of existing tools.

    Science.gov (United States)

    Keitel, Kristina; D'Acremont, Valérie

    2018-04-20

    The lack of effective, integrated diagnostic tools pose a major challenge to the primary care management of febrile childhood illnesses. These limitations are especially evident in low-resource settings and are often inappropriately compensated by antimicrobial over-prescription. Interactive electronic decision trees (IEDTs) have the potential to close these gaps: guiding antibiotic use and better identifying serious disease. This narrative review summarizes existing IEDTs, to provide an overview of their degree of validation, as well as to identify gaps in current knowledge and prospects for future innovation. Structured literature review in PubMed and Embase complemented by google search and contact with developers. Six integrated IEDTs were identified: three (eIMCI, REC, and Bangladesh digital IMCI) based on Integrated Management of Childhood Illnesses (IMCI); four (SL eCCM, MEDSINC, e-iCCM, and D-Tree eCCM) on Integrated Community Case Management (iCCM); two (ALMANACH, MSFeCARE) with a modified IMCI content; and one (ePOCT) that integrates novel content with biomarker testing. The types of publications and evaluation studies varied greatly: the content and evidence-base was published for two (ALMANACH and ePOCT), ALMANACH and ePOCT were validated in efficacy studies. Other types of evaluations, such as compliance, acceptability were available for D-Tree eCCM, eIMCI, ALMANACH. Several evaluations are still ongoing. Future prospects include conducting effectiveness and impact studies using data gathered through larger studies to adapt the medical content to local epidemiology, improving the software and sensors, and Assessing factors that influence compliance and scale-up. IEDTs are valuable tools that have the potential to improve management of febrile children in primary care and increase the rational use of diagnostics and antimicrobials. Next steps in the evidence pathway should be larger effectiveness and impact studies (including cost analysis) and

  16. Library resources on the Internet

    Science.gov (United States)

    Buchanan, Nancy L.

    1995-07-01

    Library resources are prevalent on the Internet. Library catalogs, electronic books, electronic periodicals, periodical indexes, reference sources, and U.S. Government documents are available by telnet, Gopher, World Wide Web, and FTP. Comparatively few copyrighted library resources are available freely on the Internet. Internet implementations of library resources can add useful features, such as full-text searching. There are discussion lists, Gophers, and World Wide Web pages to help users keep up with new resources and changes to existing ones. The future will bring more library resources, more types of library resources, and more integrated implementations of such resources to the Internet.

  17. Effects of blackberry (Morus nigra L. consumption on serum concentration of lipoproteins, apo A-I, apo B, and high-sensitivity-C-reactive protein and blood pressure in dyslipidemic patients

    Directory of Open Access Journals (Sweden)

    Sahar Keshtkar Aghababaee

    2015-01-01

    Full Text Available Background: This study investigated blackberry (Persian mulberry effects on apo A-I, apo B, high-sensitivity-C-reactive protein (hs-CRP, and systolic blood pressure (SBP and diastolic blood pressure (DBP in dyslipidemic patients. Materials and Methods: In this 8-week randomized clinical trial, 72 dyslipidemic patients were randomly divided into two groups: Intervention (300 mL/day blackberry juice with pulp and control group (usual diets. Before and after the intervention, fasting blood samples were taken from both groups and serum concentration of lipoprotein, apo A-I and apo B, serum lipids (total cholesterol, low-density lipoprotein, high-density lipoprotein [HDL], and triglyceride, hs-CRP were measured. Blood pressure before and after the study was measured with a mercury manometer. Results: At week 8 in the intervention group, apo A-I and HDL increased significantly (P = 0.015, P = 0.001, respectively, apo B and hs-CRP decreased significantly (P = 0.044, P = 0.04, respectively. Mean changes in apo A-I and HDL and apo B/apo A-I ratio were significant between the groups (P = 0.005, P = 0.014, and P = 0.009, respectively. After 8 weeks, there was a significant difference between hs-CRP mean values (P = 0.01 of the groups. At week 8, SBP decreased significantly (P = 0.005 in the intervention group with no significant differences for SBP mean values between the groups. No significant changes were observed in other lipid parameters and DBP in the intervention group and between the groups. Conclusion: Blackberry consumption may exert beneficial effects on apolipoproteins, blood pressure, and inflammatory markers in individuals with lipid disorders.

  18. Qualidade de luz e fitorreguladores na multiplicação e enraizamento in vitro da amoreira-preta 'Xavante' Light quality and growth regulators on in vitro multiplication and rooting of blackberry 'Xavante'

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    Mateus da Silveira Pasa

    2012-08-01

    Full Text Available A técnica de micropropagação apresenta diversas vantagens em relação aos métodos tradicionalmente utilizados na propagação da amoreira-preta, especialmente quanto à maior sanidade das mudas e maior rapidez na obtenção de novas plantas. O objetivo deste trabalho foi verificar a influência dos fitorreguladores 6-benzilaminopurina (BAP e ácido indolbutírico (AIB, aliados à qualidade de luz, na multiplicação e enraizamento in vitro, respectivamente, da amoreira-preta cultivar 'Xavante'. O delineamento experimental utilizado foi inteiramente casualizado. Os tratamentos constituíram-se de diferentes níveis de qualidade de luz (azul, vermelha, branca e ausência de luz combinadas com ausência ou presença dos fitorreguladores AIB (0,5mg L-1 e BAP (0,8mg L-1 no meio de cultivo. A utilização de BAP aumenta o número de brotações, gemas e folhas da amoreira-preta 'Xavante' e, dessa forma, é indicada para sua multiplicação in vitro. A utilização de AIB não é necessária no enraizamento in vitro da amoreira-preta 'Xavante', indicando que essa cultivar apresenta bom enraizamento natural.There are a lot of advantages using micropropagation technique over the methods traditionally used in blackberry propagation especially concerning health of seedlings and speed in getting new plants. The aim of this study was to investigate the influence of bioregulators 6-benzylaminopurine (BAP and indol-3-butyric acid (IBA combined with light quality on in vitro multiplication and rooting, respectively, of blackberry 'Xavante'. The experimental design was completely randomized. The treatments consisted of different levels of light quality (blue, red, white and absence of light combined with the absence or presence of bioregulators IBA (0.5mg L-1 and BAP (0.8mg L-1 in the culture medium. The use of BAP increases the number of new shoots, buds and leaves of blackberry, 'Xavante' and thus is suitable for its in vitro propagation. The use of IBA

  19. Plant regulators for rooting of hardwood cuttings of blackberry plants cv. Xavante/ Reguladores vegetais no enraizamento de estacas lenhosas da amoreira-preta cv. Xavante

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    Renato Vasconcelos Botelho

    2008-08-01

    Full Text Available Aiming to evaluate the use of plant regulators for rooting of hardwood cuttings of blackberry cv. Xavante, two experiments were carried out in a greenhouse. In the first one the concentrations of indolil butyric acid varied in 0, 1000, 1500, 2000, 2500 and 3000 mg L-1. And in the second one, the plant regulator that was used was paclobutrazol at the concentrations of 0, 200, 400, 600, 800 and 1000 mg L-1. For each experiment the base of the cuttings were dipped in the solutions for ten seconds. After that, the cuttings were planted in rigid plastic vases with sand and kept under intermittent misty system. The following variables were evaluated, 71 days after planting: percentage of rooted cuttings, percentage of callus presence, average length of roots, number of roots, fresh weight of roots, percentage of sprouting. The treatment of hardwood cuttings with 2000 mg L-1 IBA had the greatest percentage of rooting (60%. Nevertheless, the treatment with 1000 mg L-1 IBA attained already high rooting percentage (56%, with 96% of sprouted cuttings and 17.6 roots per cutting. Cuttings treated with PBZ presented greater callus presence but they did not root, thus it is not possible to recommend this product for rooting of blackberry plants cv. Xavante among the tested concentrations.Com o objetivo de avaliar o emprego de reguladores vegetais no enraizamento de estacas lenhosas da amora-preta cv. Xavante dois experimentos foram conduzidos em casa-de-vegetação. No primeiro, empregou-se o ácido indol butírico (AIB nas concentrações de 0, 1000, 1500, 2000, 2500, 3000 mg L-1. No segundo, o regulador utilizado foi o paclobutrazol (PBZ nas concentrações de 0, 200, 400, 600, 800, 1000 mg L-1. Em ambos os experimentos as estacas ficaram imersas por 10 segundos nas respectivas soluções. Posteriormente foram plantados em vasos de plástico rígido contendo areia, sendo mantidas em casade- vegetação sob nebulização intermitente. Após 71 dias do plantio

  20. Effect of organic fertilizers on soil chemical properties and performance of blackberry (Rubus adenotrichus) in two agroecology zones of Costa Rica

    International Nuclear Information System (INIS)

    Orozco Rodriguez, Rafael; Munoz Hernandez, Roger

    2012-01-01

    The effect of two organic fertilizers on soil chemical properties and plant performance blackberry (Rubus adenotrichus cv.Vino) in two areas of Costa Rica were evaluated. For this purpose, two experiments were established, one in Buena Vista of Perez Zeledon (BVPZ) and another in San Martin of Leon Cortes (SMLC), both in the province of San Jose, Costa Rica. The research was conducted between August 2005 and July 2008. Three treatments were evaluated in each experiment: Compost (C) and Vermicompost (L), at the rate of 4 kg/plant and 3 kg/plant respectively, and a control without fertilizer (T). The frequency of application of fertilizer at planting was given at 6, 12, 18 and 24 months for a total of 6,6 t/ha for C and 4,9 t/ha for L. Soil samples were taken at 0, 6, 12, 18, 24 and 35 months, after planting for analysis. The results have shown that in both agro-ecosystems, the application of C and L has increased soil pH, reduced acidity, has increased the availability of Ca, Mg, K, N, and P, and has favored the effective cation exchange capacity (ICC) and the percentage of organic matter. The accumulation of Mn, Cu and Zn was not observed. Performance-wise, in BVPZ only significant have found differences (P = 0,00188) between C (1,8 t/ha) and T (0,9 t/ha), while in SMLC, found no differences statistical significant (P [es

  1. A comparative study on composition and antioxidant activities of supercritical carbon dioxide, hexane and ethanol extracts from blackberry (Rubus fruticosus) growing in Poland.

    Science.gov (United States)

    Wajs-Bonikowska, Anna; Stobiecka, Agnieszka; Bonikowski, Radosław; Krajewska, Agnieszka; Sikora, Magdalena; Kula, Józef

    2017-08-01

    Large quantities of blackberry seeds are produced as a pomace during the processing of juice and jam production; this by-product is a very interesting raw material both for oil manufacturing and as a source of bioactive compounds. In this work the composition, yield and antioxidant activity of three types of Rubus fructicosus pomace extracts isolated by liquid extraction using solvents of different polarity, as well with supercritical CO 2 fluid extraction have been compared. The highest extract yield was reported for Soxhlet extraction using ethanol as a solvent (14.2%). Supercritical carbon dioxide and hexane extracts were characterised by the highest content of phytosterols (1445 and 1583 mg 100 g -1 of extract, respectively) among which β-sitosterol was the main one, while the concentration of tocopherols, with predominant γ-isomer, was the highest for both hexane and ethanol extracts, being 2364 and 2334 mg 100 g -1 , respectively. Using a GC-MS method 95 volatiles, in which non-saturated aldehydes were predominant, were identified in the essential oil of seed pomace and in the volatile oil isolated from supercritical extract. The ethanolic extract which is characterised by the highest phenolic content (9443 mg GAE 100 g -1 ) exhibited the highest antioxidant activity (according to the ABTS •+ and DPPH • assays). All pomace extracts examined were of high quality, rich in essential omega fatty acids and with a very high content of bioactive compounds, such as phytosterols and tocopherols. The high nutritional value of extracts from berry seed pomace could justify the commercialisation of specific extracts not only as food additives but also as cosmetic components. © 2017 Society of Chemical Industry. © 2017 Society of Chemical Industry.

  2. Herpes - resources

    Science.gov (United States)

    Genital herpes - resources; Resources - genital herpes ... following organizations are good resources for information on genital herpes : March of Dimes -- www.marchofdimes.com/pregnancy/complications- ...

  3. Analysis on Current Situation and Countermeasure of Domestic Electronic Commerce Logistics in the Internet Age——Based on Resource Dependence Theory

    Directory of Open Access Journals (Sweden)

    Zhang Jiapeng

    2017-01-01

    Full Text Available This paper analyzes the status of electric business logistics in the current Internet era in China, and combines the SWOT analysis with AHP to do the empirical analysis, then puts forward the countermeasure that the electric business logistics resource should be shared based on the resource dependence theory. Through the empirical analysis, it is found that the disadvantages and opportunities of the logistics status are important in the Internet era.The resource sharing strategy based on the resource dependence theory is more scientific. The rational use of Internet technology in electric business logistics industry can achieve “sharing”. It is of great significance for its balanced development, intelligent development and optimization and development.

  4. Innovative Resources for Education and Public Information: Electronic Services, Data and Information from NASA's Hubble Space Telescope and Other NASA Missions.

    Science.gov (United States)

    Christian, Carol A.

    The Space Telescope Science Institute (STScI), which supports the operation of the Hubble Space Telescope, is actively investigating and supporting innovative and experimental methods for improving science and math education content. The educational resources on the World Wide Web are derived from the latest data, scientific results, and advances…

  5. How Students Learn: Ways of Thinking about "Good Learning" in HE. EDNER (Formative Evaluation of the Distributed National Electronic Resource) Project. Issues Paper.

    Science.gov (United States)

    Manchester Metropolitan Univ. (England).

    This issues paper, one of a series of eight, is intended to distill formative evaluation questions on topics that are central to the development of the higher and further education information environment in the United Kingdom. The topic of this first issues paper is a conceptual framework that can help members of a project (information resource)…

  6. 大學圖書館電子資源之需求分析與行銷策略之研究 A Study of Demands Analysis and Marketing Strategy of Electronic Resources in University Library

    Directory of Open Access Journals (Sweden)

    Huang-Yu Liu

    2008-03-01

    Full Text Available 電子資源的出現,使得知識載體有了新的突破,提高了使用者的便利性與即時性。對於圖書館而言,如何使電子資源的使用效益達到最高,必須思考一套有效的行銷策略。電子資源行銷概念應以讀者為導向,尊重讀者的資訊需求,並利用各種宣傳技巧,行銷電子資源,使圖書館能提供更完善的服務。本研究之目的旨在探討讀者的使用需求及電子資源的推廣策略,以獲致最有效益的行銷方式。研究對象以開南大學日間部四學院(商學院、運輸觀光學院、資訊學院、人文社會學院)學生為樣本,佐以缺口分析模型為分析架構,藉以找出個案中讀者/學生對於電子資源使用的真實需求,並進而歸納出提供服務的大學圖書館在其推廣或行銷服務上可有的因應策略。The emergence of electronic resources has made new breakthrough in knowledge carriers because of their ease of use, instant availability, and the characteristic of no time and space constraints. For public libraries to achieve maximum efficiency in its electronic resources, it is necessary to seek the most effective marketing strategies. Therefore, the marketing concept of the electronic resources should be reader oriented, such as respecting and understanding library user’s information needs. Libraries also need to utilize various media and techniques to market the electronic resources, so that more comprehensive services and experiences can be provided to readers. The purpose of this study is to investigate library user’s needs and promotion strategies of electronic resources in order to identify the most effective ways of marketing. This study focuses on the students of the four colleges (College of Business, College of Tourism, College of Information, and College of Humanities and Social Science in Kainan University as subjects in the survey questionnaire. It uses the Gap Analysis

  7. Dormancy and Germination of Castilla Blackberry Seeds (Rubus glaucus Benth / Latencia y Germinación de Semillas de Mora de Castilla (Rubus glaucus Benth

    Directory of Open Access Journals (Sweden)

    Díaz Diez Cipriano Arturo

    2013-08-01

    Full Text Available We categorized the dormancy and germination ofblackberry (Rubus glaucus Benth seeds from the GermplasmBank System for Food and Agriculture of the Colombian Nation. A tetrazolium test showed normal seedling production viability, but seed coat impermeability prevented imbibition, which is considered an expression of exogenous dormancy; however, this was released by immersing the seeds in 5.25% sodium hypochlorite for 16 to 21 hours. The treatment was applied to 10 accessions of Castilla blackberry, harvested during the dry and rainy seasons. The seeds were germinated under light and dark conditions. The highest germination counts were obtained with the dry-season-collected seeds incubated in darkness and with the rainy-season seeds incubated under light conditions. Differential germination responses were also independently determined by genotype, incubation conditions (light or darkness and collecting season. / Se categorizaron la latencia y la germinación ensemillas de mora de Castilla (Rubus glaucus Benth, provenientes del Sistema de Bancos de Germoplasma para la Alimentación y la Agricultura de la Nación Colombiana. La prueba del tetrazolio demostró que las semillas tenían la capacidad para dar origen a una plántula normal; sin embargo, al contacto con el agua la imbibición fue restringida por la impermeabilidad de la testa, lo que se considera como una expresión de latencia exógena. Ésta pudo ser removida con la inmersión de las semillas durante 16 a 21 horas en hipoclorito de sodio al 5,25%. El tratamiento fue aplicado a 10 accesiones de mora de Castila cosechadas en épocas seca y lluviosa; las semillas se germinaron bajo condiciones deluz y oscuridad, con una mayor germinación al incubar lasprovenientes de tiempo seco en condiciones de oscuridad y en aquellas de época lluviosa al ser germinadas con luz. También al aplicar el procedimiento de remoción de latencia exógena se observaron respuestas germinativas diferenciales

  8. Caracterização do suco de amora-preta elaborado em extrator caseiro Characterisation of black-berry juice prepared in a domestic extractor

    Directory of Open Access Journals (Sweden)

    Renata Vieira da Mota

    2006-06-01

    Full Text Available O trabalho objetivou avaliar a composição físico-química, aceitabilidade e efeito do armazenamento na qualidade do suco de amora-preta elaborado em um extrator caseiro. Os frutos foram avaliados quanto à composição físico-química e separados de acordo com o teor de antocianinas em três grupos: acima de 160 mg/100 g (Guarani, de 120-160 mg/100 g (Caingangue e Comanche e abaixo de 120 mg/100 g (Tupy, Seleção 97 e Cherokee. Os sucos foram pasteurizados e analisados quanto aos teores de pH, sólidos solúveis totais, acidez total titulável, carboidratos solúveis, extrato seco e antocianinas. A extração por 2 h apresentou rendimento de 84%. As antocianinas foram os compostos que sofreram alteração mais significativa na elaboração do suco, com redução média de 42%. O suco apresentou aceitabilidade superior a 85%. O armazenamento em adega ou sob refrigeração alterou de forma significativa apenas o teor de antocianinas dos sucos, cuja degradação foi menor nas amostras conservadas sob refrigeração.The aim of this study was the evaluation of physico-chemical composition, acceptability and storage effects on the quality of black-berry juice prepared in a domestic extractor. Fruits were analysed for their chemical properties and divided in three groups, according to anthocyanin content: above 160 mg/100 g (Guarani, 120-160 mg/100 g (Caingangue and Comanche and below 120 mg/100 g (Tupy, Seleção 97, Cherokee. The pasteurised juices were analysed for parameters related to quality, such as pH, total soluble sugars, titratable acidity, dry extract and anthocyanin content. Extraction for two hours resulted in a yield of 84%. Juice extraction reduced the anthocyanin content in average 42%. The acceptability was over 85%. Storage in wine cellar or refrigerator reduced the anthocyanin content of the juices, whose degradation was smaller in samples stored under refrigeration.

  9. Power Electronics

    DEFF Research Database (Denmark)

    Iov, Florin; Ciobotaru, Mihai; Blaabjerg, Frede

    2008-01-01

    is to change the electrical power production sources from the conventional, fossil (and short term) based energy sources to renewable energy resources. The other is to use high efficient power electronics in power generation, power transmission/distribution and end-user application. This paper discuss the most...... emerging renewable energy sources, wind energy, which by means of power electronics are changing from being a minor energy source to be acting as an important power source in the energy system. Power electronics is the enabling technology and the presentation will cover the development in wind turbine...... technology from kW to MW, discuss which power electronic solutions are most feasible and used today....

  10. Application of electronic learning tools for training of specialists in the field of information technologies for enterprises of mineral resources sector

    Directory of Open Access Journals (Sweden)

    Е. В. Катунцов

    2017-08-01

    Full Text Available The article shows the advantages of using modern electronic learning tools in the training of specialists for the mineral and raw materials complex and considers the basic principles of organizing training using these tools. The experience of using electronic learning tools using foreign teaching materials and involving foreign professors is described. A special attention is given to the electronic learning environment of the Cisco Networking Academy – Cisco NetAcad. The experience of teaching at the Networking Academy of the Saint-Petersburg Mining University is described. Details are given to modern virtual environments for laboratory work, such as Cisco Packet Tracer, GNS3 and Emulated Virtual Environment. The experience of using electronic learning technologies at the University of Economics of Bratislava is considered. It actively cooperates with a number of universities of other countries, such as the University of International Business (Almaty, the Eurasian National University named after LN Gumilyov (Astana and the Institute of Social and Humanitarian Knowledge (Kazan.

  11. Positive Perceptions of Access to Online Library Resources Correlates with Quality and Quantity of Scholarly Publications among Finnish Academics. A Review of: Vakkari, Pertti. “Perceived Influence of the Use of Electronic Information Resources on Scholarly Work and Publication Productivity.” Journal of the American Society for Information Science and Technology 59.4 (Feb. 15, 2008: 602-12.

    Directory of Open Access Journals (Sweden)

    Scott Marsalis

    2008-12-01

    Full Text Available Objective – To investigate the relationship between academics’ use of library electronic resources and their opinions regarding how these resources have impacted their work, and to investigate the association between this perceived influence and publication productivity during the previous two years.Design – Two specific questions added to an annual online user-survey questionnaire; additional data mined from surveySetting – Twenty-two Finnish Universities served by FinELib, the Finnish Electronic Library.Subjects – Seven hundred and sixty seven academic staff and full-time doctoral students.Methods – A questionnaire was posted in April 2007 on FinELib’s homepage and advertised on each university library’s mainpage, and focused on respondents’ experience in the previous two years. Participants selected answers either from a list of category choices, or, when measuring perceptions, by rating agreement with statements along a four-point scale. Controlled variables measured were the respondents’ academic position, their discipline, membership in a research group, whether their literature use was discipline-specific or interdisciplinary, and their perception of the availability online of the relevant core literature. The independent variable measured was the scholars’ perception of the impact of the use of electronic library resources on their work. The dependent variable measured was the scholars’ self-reported publications in the two years preceding the survey.Main Results – Participants reported a positive impact on the efficiency of their work, most strongly in areas of ease of access, with lesser impacts in the range of materials available to them and the ease with which they can keep up-to-date in their field. To a lesser extent, the scholars perceived a positive impact on the quality of their work. Upon analysis, the study found that access to online library resources improved scholars’ work by the interconnected

  12. Electronic collection management

    CERN Document Server

    Mcginnis, Suzan D

    2013-01-01

    Build and manage your collection of digital resources with these successful strategies! This comprehensive volume is a practical guide to the art and science of acquiring and organizing electronic resources. The collections discussed here range in size from small college libraries to large research libraries, but all are facing similar problems: shrinking budgets, increasing demands, and rapidly shifting formats. Electronic Collection Management offers new ideas for coping with these issues. Bringing together diverse aspects of collection development, Electronic Collection

  13. EFFECTIVE ELECTRONIC TUTORIAL

    Directory of Open Access Journals (Sweden)

    Andrei A. Fedoseev

    2014-01-01

    Full Text Available The article analyzes effective electronic tutorials creation and application based on the theory of pedagogy. Herewith the issues of necessary electronic tutorial functional, ways of the educational process organization with the use of information and communication technologies and the logistics of electronic educational resources are touched upon. 

  14. Merge of terminological resources

    DEFF Research Database (Denmark)

    Henriksen, Lina; Braasch, Anna

    2012-01-01

    – or merging – of terminology resources are strongly needed. This paper discusses prerequisites for successful merging with the focus on identification of candidate duplicates of a subject domain found in the resources to be merged, and it describes automatic merging strategies to be applied to such duplicates...... in electronic terminology resources. Further, some perspectives of manual, supplementary assessment methods supporting the automatic procedures are sketched. Our considerations are primarily based on experience gained in the IATE and EuroTermBank projects, as merging was a much discussed issue in both projects....

  15. Merge of terminological resources

    DEFF Research Database (Denmark)

    Henriksen, Lina; Braasch, Anna

    2012-01-01

    In our globalized world, the amount of cross-national communication increases rapidly, which also calls for easy access to multi-lingual high quality terminological resources. Sharing of terminology resources is currently becoming common practice, and efficient strategies for integration...... – or merging – of terminology resources are strongly needed. This paper discusses prerequisites for successful merging with the focus on identification of candidate duplicates of a subject domain found in the resources to be merged, and it describes automatic merging strategies to be applied to such duplicates...... in electronic terminology resources. Further, some perspectives of manual, supplementary assessment methods supporting the automatic procedures are sketched. Our considerations are primarily based on experience gained in the IATE and EuroTermBank projects, as merging was a much discussed issue in both projects....

  16. Renewable energy resources

    DEFF Research Database (Denmark)

    Ellabban, Omar S.; Abu-Rub, Haitham A.; Blaabjerg, Frede

    2014-01-01

    Electric energy security is essential, yet the high cost and limited sources of fossil fuels, in addition to the need to reduce greenhouse gasses emission, have made renewable resources attractive in world energy-based economies. The potential for renewable energy resources is enormous because...... they can, in principle, exponentially exceed the world's energy demand; therefore, these types of resources will have a significant share in the future global energy portfolio, much of which is now concentrating on advancing their pool of renewable energy resources. Accordingly, this paper presents how...... renewable energy resources are currently being used, scientific developments to improve their use, their future prospects, and their deployment. Additionally, the paper represents the impact of power electronics and smart grid technologies that can enable the proportionate share of renewable energy...

  17. Electronics and electronic systems

    CERN Document Server

    Olsen, George H

    1987-01-01

    Electronics and Electronic Systems explores the significant developments in the field of electronics and electronic devices. This book is organized into three parts encompassing 11 chapters that discuss the fundamental circuit theory and the principles of analog and digital electronics. This book deals first with the passive components of electronic systems, such as resistors, capacitors, and inductors. These topics are followed by a discussion on the analysis of electronic circuits, which involves three ways, namely, the actual circuit, graphical techniques, and rule of thumb. The remaining p

  18. Water Resources

    International Nuclear Information System (INIS)

    Abira, M.A.

    1997-01-01

    Water is essential for life and ecological sustenance; its availability is essential component of national welfare and productivity.The country's socio-economic activities are largely dependent on the natural endowment of water resources. Kenya's water resources comprises of surface waters (rivers, lakes and wetlands) and ground water. Surface water forms 86% of total water resources while the rest is ground water Geological, topographical and climatic factors influence the natural availability and distribution of water with the rainfall distribution having the major influence. Water resources in Kenya are continuously under threat of depletion and quality degradation owing to rising population, industrialization, changing land use and settlement activities as well as natural changes. However, the anticipated climate change is likely to exacerbate the situation resulting in increased conflict over water use rights in particular, and, natural resource utilisation in general. The impacts of climate change on the water resources would lead to other impacts on environmental and socio-economic systems

  19. Meio de cultura, concentração de AIB e tempo de cultivo no enraizamento in vitro de amoreira-preta e framboeseira Culture environment, IBA concentration and cultivation time on in vitro rooting of blackberry and raspberry

    Directory of Open Access Journals (Sweden)

    Luciane Nolasco Leitzke

    2009-06-01

    Full Text Available A propagação da amoreira-preta e da framboeseira dá-se principalmente por meio de estacas de raiz e mesmo de hastes novas, contudo, já é crescente o interesse pelo uso da micropropagação como um método alternativo de propagação . O enraizamento é uma das etapas mais difícieis, onde a definição do meio de cultivo, da concentração ótima de AIB para o enraizamento, constitui um passo importante, por isso objetivou-se com este experimento determinar o melhor meio de cultivo, melhor tipo de cultivo e a melhor concentração de AIB no meio de cultura para o enraizamento in vitro da amoreira-preta 'Xavante' e de framboeseira 'Batum' e 'Heritage'. O material vegetal utilizado foram microestacas apicais com duas folhas, com cerca de 1 cm de comprimento, oriundas do cultivo in vitro. Os fatores estudados foram o tipo de meio de cultura MS e WPM - Wood Plant Media, a concentração de AIB no meio de cultura e o tempo de cultivo das microestacas em meio com AIB. O meio WPM, em concentrações baixas, menores de 3 µM de AIB, induziram maiores médias de enraizamento e comprimento. Concentrações altas de AIB induziram a formação de calo, para amoreira-preta, 'Xavante'. Para a framboeseira o meio WPM, com menores concentrações de AIB (0 e 3 µM, mostrou as melhores médias no número de raízes, comprimento de raízes e pequena intensidade de calo; com as maiores concentrações de AIB, ocorreu maior aparecimento de calo.The propagation of blackberry and raspberry occur mainly through root cutting and even of softwoods stem; however, it is already increasing the interest for the use of the micropropagation as an alternative technique of vegetative propagation of fruit plants, since the rooting is one of the most difficult stages, in which the definition of both the culture environment and the best concentration of AIB for the rooting, is an important stage. For that purpose, the aim of this research was to determine the best cultivation

  20. Biologia da mosca‑das‑frutas sul‑americana em frutos de mirtilo, amoreira‑preta, araçazeiro e pitangueira Biology of South American fruit fly in blueberry, blackberry, strawberry guava, and Surinam cherry crops

    Directory of Open Access Journals (Sweden)

    Maicon Bisognin

    2013-02-01

    Full Text Available O objetivo deste trabalho foi descrever a biologia de Anastrepha fraterculus em frutos de mirtilo (Vaccinium ashei, amoreira‑preta (Rubus spp., araçazeiro (Psidium cattleyanum e pitangueira (Eugenia uniflora. O experimento foi realizado em laboratório, em condições controladas de temperatura (25±2ºC, umidade relativa (70±10% e fotófase (12 horas, para determinação dos parâmetros biológicos do inseto nos estágios de desenvolvimento imaturos e adultos. Anastrepha fraterculus completa o ciclo biológico em todos hospedeiros estudados, embora os frutos nativos (pitanga e araçá ofereçam melhores condições para seu desenvolvimento. Os parâmetros biológicos determinados para as fases imaturas foram semelhantes nos quatro hospedeiros. Insetos criados em pitanga e araçá apresentam, na fase adulta, maior período de oviposição, fecundidade e longevidade de fêmeas, em comparação aos criados em mirtilo e amora‑preta. O ritmo diário de oviposição é mais prolongado e uniforme nos insetos criados em araçá e pitanga, o que mostra que A. fraterculus está mais bem adaptada a estas frutas, nativas da região Sul.The objective of this work was to describe the biology of Anastrepha fraterculus in blueberry (Vaccinium ashei, blackberry (Rubus spp., strawberry guava (Psidium cattleyanum and Surinam cherry (Eugenia uniflora fruits. The experiment was carried out in laboratory under controlled conditions of temperature (25±2ºC, relative humidity (70±10%, and photophase (12 hours to determine insect biological parameters in immature and adult development stages. Anastrepha fraterculus finishes its biological cycle in all studied hosts; however, the Brazilian native fruits (strawberry guava and Surinam cherry provide better conditions for development of the insect. Biological parameters determined for immature development stadium were similar in the four hosts. Insects reared in Surinam cherry and strawberry guava showed, in the

  1. Physico-chemical characterization and bioactive compounds of blackberry fruits (Rubus sp. grown in Brazil Caracterização físico-química e de compostos bioativos em amora-preta (Rubus sp. cultivada no Brasil

    Directory of Open Access Journals (Sweden)

    Neuza Mariko Aymoto Hassimotto

    2008-09-01

    Full Text Available Five blackberry cultivars (Rubus sp. were evaluated for antioxidant capacity, bioactive compounds and composition. Ascorbic acid levels, consisting of dehydro-ascorbic acid, ranged from 9.8 to 21.4 mg.100 g-1 fresh weight. Cyanidin (66 to 80% of total flavonoids, epicatechin, quercetin and traces of kaempferol were the main flavonoids found in all cultivars. The five cultivars presented high antioxidant capacity in the β-carotene/linoleic acid system, with inhibition similar to the synthetic antioxidant BHT, at a 50 µM concentration. Caingangue cultivar presented high vitamin C and total phenolics content, while Guarani had the highest cyanidin, total anthocyanin and total flavonoids levels and also the highest antioxidant capacity. These cultivars also presented good TSS/TA ratios. From the data, at a quantitative level, blackberry can be considered a good source of bioactive compounds, as well as potentially beneficial to human health.Cinco cultivares de amora-preta (Rubus sp. foram avaliadas quanto a sua capacidade antioxidante, perfil de compostos bioativos e composição físico-química. Os níveis de ácido ascórbico total, presentes na forma de ácido desidroascórbico, variaram entre 9,8 a 21,4 mg.100 g-1 (b.u.. Os principais flavonóides presentes nas cinco cultivares foram: a antocianina cianidina (66 a 80% do total de flavonóides; o flavan-3-ol epicatequina; e os flavonóis quercetina e traços de caenferol. As cinco cultivares apresentaram alta capacidade antioxidante quando avaliadas pelo sistema de co-oxidação β-caroteno/ácido linoléico, similar ao antioxidante sintético BHT, na concentração de 50 µM. A cultivar Guarani apresentou os maiores teores de flavonóides totais, antocianina total, cianidina e de capacidade antioxidante, enquanto que a cultivar Caigangue apresentou alto conteúdo de vitamina C e de fenólicos totais. Estas duas cultivares também apresentaram uma boa correlação TSS/TA. Assim, a amora

  2. Cohort profile of the South London and Maudsley NHS Foundation Trust Biomedical Research Centre (SLaM BRC) Case Register: current status and recent enhancement of an Electronic Mental Health Record-derived data resource.

    Science.gov (United States)

    Perera, Gayan; Broadbent, Matthew; Callard, Felicity; Chang, Chin-Kuo; Downs, Johnny; Dutta, Rina; Fernandes, Andrea; Hayes, Richard D; Henderson, Max; Jackson, Richard; Jewell, Amelia; Kadra, Giouliana; Little, Ryan; Pritchard, Megan; Shetty, Hitesh; Tulloch, Alex; Stewart, Robert

    2016-03-01

    The South London and Maudsley National Health Service (NHS) Foundation Trust Biomedical Research Centre (SLaM BRC) Case Register and its Clinical Record Interactive Search (CRIS) application were developed in 2008, generating a research repository of real-time, anonymised, structured and open-text data derived from the electronic health record system used by SLaM, a large mental healthcare provider in southeast London. In this paper, we update this register's descriptive data, and describe the substantial expansion and extension of the data resource since its original development. Descriptive data were generated from the SLaM BRC Case Register on 31 December 2014. Currently, there are over 250,000 patient records accessed through CRIS. Since 2008, the most significant developments in the SLaM BRC Case Register have been the introduction of natural language processing to extract structured data from open-text fields, linkages to external sources of data, and the addition of a parallel relational database (Structured Query Language) output. Natural language processing applications to date have brought in new and hitherto inaccessible data on cognitive function, education, social care receipt, smoking, diagnostic statements and pharmacotherapy. In addition, through external data linkages, large volumes of supplementary information have been accessed on mortality, hospital attendances and cancer registrations. Coupled with robust data security and governance structures, electronic health records provide potentially transformative information on mental disorders and outcomes in routine clinical care. The SLaM BRC Case Register continues to grow as a database, with approximately 20,000 new cases added each year, in addition to extension of follow-up for existing cases. Data linkages and natural language processing present important opportunities to enhance this type of research resource further, achieving both volume and depth of data. However, research projects still

  3. Model for Presenting Resources in Scholar's Portal

    Science.gov (United States)

    Feeney, Mary; Newby, Jill

    2005-01-01

    Presenting electronic resources to users through a federated search engine introduces unique opportunities and challenges to libraries. This article reports on the decision-making tools and processes used for selecting collections of electronic resources by a project team at the University of Arizona (UA) Libraries for the Association of Research…

  4. Diabetes - resources

    Science.gov (United States)

    Resources - diabetes ... The following sites provide further information on diabetes: American Diabetes Association -- www.diabetes.org Juvenile Diabetes Research Foundation International -- www.jdrf.org National Center for Chronic Disease Prevention and Health Promotion -- ...

  5. Hemophilia - resources

    Science.gov (United States)

    Resources - hemophilia ... The following organizations provide further information on hemophilia : Centers for Disease Control and Prevention -- www.cdc.gov/ncbddd/hemophilia/index.html National Heart, Lung, and Blood Institute -- www.nhlbi.nih.gov/ ...

  6. Seaweed resources

    Digital Repository Service at National Institute of Oceanography (India)

    Deshmukhe, G.V.; Dhargalkar, V.K.; Untawale, A.G.

    The chapter summarizes our present knowledge of the seaweed resources of the Indian Ocean region with regard to the phytogeographical distribution, composition, biomass, utilization, cultivation, conservation and management. The voluminous data...

  7. Mineral resources

    Digital Repository Service at National Institute of Oceanography (India)

    Valsangkar, A.B.

    to the source, supply rate, sediment type and seabed topography. Indian Ocean is second largest and least explored for nonrenewable resources. Compared to deep-sea, relatively better knowledge is available for the near shore deposits. A concise account...

  8. Depression - resources

    Science.gov (United States)

    Resources - depression ... Depression is a medical condition. If you think you may be depressed, see a health care provider. ... following organizations are good sources of information on depression : American Psychological Association -- www.apa.org/topics/depression/ ...

  9. Arthritis - resources

    Science.gov (United States)

    Resources - arthritis ... The following organizations provide more information on arthritis : American Academy of Orthopaedic Surgeons -- orthoinfo.aaos.org/menus/arthritis.cfm Arthritis Foundation -- www.arthritis.org Centers for Disease Control and Prevention -- www. ...

  10. Forest Resources

    Energy Technology Data Exchange (ETDEWEB)

    None

    2016-06-01

    Forest biomass is an abundant biomass feedstock that complements the conventional forest use of wood for paper and wood materials. It may be utilized for bioenergy production, such as heat and electricity, as well as for biofuels and a variety of bioproducts, such as industrial chemicals, textiles, and other renewable materials. The resources within the 2016 Billion-Ton Report include primary forest resources, which are taken directly from timberland-only forests, removed from the land, and taken to the roadside.

  11. Automotive electronics design fundamentals

    CERN Document Server

    Zaman, Najamuz

    2015-01-01

    This book explains the topology behind automotive electronics architectures and examines how they can be profoundly augmented with embedded controllers. These controllers serve as the core building blocks of today’s vehicle electronics. Rather than simply teaching electrical basics, this unique resource focuses on the fundamental concepts of vehicle electronics architecture, and details the wide variety of Electronic Control Modules (ECMs) that enable the increasingly sophisticated "bells & whistles" of modern designs.  A must-have for automotive design engineers, technicians working in automotive electronics repair centers and students taking automotive electronics courses, this guide bridges the gap between academic instruction and industry practice with clear, concise advice on how to design and optimize automotive electronics with embedded controllers.

  12. Internet and Electronic Information Management

    Science.gov (United States)

    2004-12-01

    centers to form consortia and share electronic information sources. Although traditional resource sharing arrangements encouraged competition rather... electronic information sources are a challenge for electronic information managers. Libraries and information centers are no longer “the only game in town...

  13. Electronics Environmental Benefits Calculator

    Science.gov (United States)

    The Electronics Environmental Benefits Calculator (EEBC) was developed to assist organizations in estimating the environmental benefits of greening their purchase, use and disposal of electronics.The EEBC estimates the environmental and economic benefits of: Purchasing Electronic Product Environmental Assessment Tool (EPEAT)-registered products; Enabling power management features on computers and monitors above default percentages; Extending the life of equipment beyond baseline values; Reusing computers, monitors and cell phones; and Recycling computers, monitors, cell phones and loads of mixed electronic products.The EEBC may be downloaded as a Microsoft Excel spreadsheet.See https://www.federalelectronicschallenge.net/resources/bencalc.htm for more details.

  14. Power Electronics

    DEFF Research Database (Denmark)

    Iov, Florin; Ciobotaru, Mihai; Blaabjerg, Frede

    2008-01-01

    The global electrical energy consumption is still rising and there is an urgent demand to increase the power capacity. It is expected that the power capacity has to be doubled within 20 years. The production, distribution and use of energy should be as efficient as possible and incentives to save...... energy at the end-user should also be set up. Deregulation of energy has in the past lowered the investment in larger power plants, which means the need for new electrical power sources will be high in the near future. Two major technologies will play important roles to solve the future problems. One...... is to change the electrical power production sources from the conventional, fossil (and short term) based energy sources to renewable energy resources. The other is to use high efficient power electronics in power generation, power transmission/distribution and end-user application. This paper discuss the most...

  15. 大學圖書館電子資源之需求分析與行銷策略之研究 A Study of Demands Analysis and Marketing Strategy of Electronic Resources in University Library

    OpenAIRE

    Huang-Yu Liu; Jung-Huei Shu

    2008-01-01

    電子資源的出現,使得知識載體有了新的突破,提高了使用者的便利性與即時性。對於圖書館而言,如何使電子資源的使用效益達到最高,必須思考一套有效的行銷策略。電子資源行銷概念應以讀者為導向,尊重讀者的資訊需求,並利用各種宣傳技巧,行銷電子資源,使圖書館能提供更完善的服務。本研究之目的旨在探討讀者的使用需求及電子資源的推廣策略,以獲致最有效益的行銷方式。研究對象以開南大學日間部四學院(商學院、運輸觀光學院、資訊學院、人文社會學院)學生為樣本,佐以缺口分析模型為分析架構,藉以找出個案中讀者/學生對於電子資源使用的真實需求,並進而歸納出提供服務的大學圖書館在其推廣或行銷服務上可有的因應策略。The emergence of electronic resources has made new breakthrough in knowledge carriers because of their ease of use, instant availability, and the characteristic of no time and space constraints. For public...

  16. Electronic Cigarettes

    Science.gov (United States)

    ... New FDA Regulations Text Size: A A A Electronic Cigarettes Electronic cigarettes (e-cigarettes) are battery operated products designed to ... more about: The latest news and events about electronic cigarettes on this FDA page Electronic cigarette basics on ...

  17. Resource Economics

    Science.gov (United States)

    Conrad, Jon M.

    2000-01-01

    Resource Economics is a text for students with a background in calculus, intermediate microeconomics, and a familiarity with the spreadsheet software Excel. The book covers basic concepts, shows how to set up spreadsheets to solve dynamic allocation problems, and presents economic models for fisheries, forestry, nonrenewable resources, stock pollutants, option value, and sustainable development. Within the text, numerical examples are posed and solved using Excel's Solver. These problems help make concepts operational, develop economic intuition, and serve as a bridge to the study of real-world problems of resource management. Through these examples and additional exercises at the end of Chapters 1 to 8, students can make dynamic models operational, develop their economic intuition, and learn how to set up spreadsheets for the simulation of optimization of resource and environmental systems. Book is unique in its use of spreadsheet software (Excel) to solve dynamic allocation problems Conrad is co-author of a previous book for the Press on the subject for graduate students Approach is extremely student-friendly; gives students the tools to apply research results to actual environmental issues

  18. Electronic technology

    International Nuclear Information System (INIS)

    Kim, Jin Su

    2010-07-01

    This book is composed of five chapters, which introduces electronic technology about understanding of electronic, electronic component, radio, electronic application, communication technology, semiconductor on its basic, free electron and hole, intrinsic semiconductor and semiconductor element, Diode such as PN junction diode, characteristic of junction diode, rectifier circuit and smoothing circuit, transistor on structure of transistor, characteristic of transistor and common emitter circuit, electronic application about electronic equipment, communication technology and education, robot technology and high electronic technology.

  19. The Electron

    Energy Technology Data Exchange (ETDEWEB)

    Thomson, George

    1972-01-01

    Electrons are elementary particles of atoms that revolve around and outside the nucleus and have a negative charge. This booklet discusses how electrons relate to electricity, some applications of electrons, electrons as waves, electrons in atoms and solids, the electron microscope, among other things.

  20. Hard electronics; Hard electronics

    Energy Technology Data Exchange (ETDEWEB)

    NONE

    1997-03-01

    Hard material technologies were surveyed to establish the hard electronic technology which offers superior characteristics under hard operational or environmental conditions as compared with conventional Si devices. The following technologies were separately surveyed: (1) The device and integration technologies of wide gap hard semiconductors such as SiC, diamond and nitride, (2) The technology of hard semiconductor devices for vacuum micro- electronics technology, and (3) The technology of hard new material devices for oxides. The formation technology of oxide thin films made remarkable progress after discovery of oxide superconductor materials, resulting in development of an atomic layer growth method and mist deposition method. This leading research is expected to solve such issues difficult to be easily realized by current Si technology as high-power, high-frequency and low-loss devices in power electronics, high temperature-proof and radiation-proof devices in ultimate electronics, and high-speed and dense- integrated devices in information electronics. 432 refs., 136 figs., 15 tabs.

  1. Chemical dependence - resources

    Science.gov (United States)

    Substance use - resources, Drug abuse - resources; Resources - chemical dependence ... organizations are a good resource for information on drug dependence: National Council on Alcoholism and Drug Dependence -- ncadd. ...

  2. Biodegradable coatings on the postharvest of blackberry stored under refrigeration Revestimentos biodegradáveis na pós-colheita de amora-preta armazenada sob refrigeração

    Directory of Open Access Journals (Sweden)

    Dalany Menezes Oliveira

    2013-06-01

    Full Text Available Blackberry is a notable fruit due to bioactive compounds. However it has a fragile structure, which reduces the consumption in natura. The aim of this study was to evaluate the physical and chemical quality of the cv. Tupy blackberry fruits, produced in an organic system, and coated with emulsions based on cassava starch and water kefir grains stored under refrigeration. The fruits were divided into three groups: a control (T1 and two treatments with coatings. The coatings used were: cassava starch solution 2.5% (T2; water kefir grains at 20% (T3. The fruits of the three treatments were stored at 10 ± 2 ºC and RH 85 ± 3%, and were evaluated every three days for 12 days period. It was determined: weight loss, firmness, pH, titratable acid, soluble solids, ratio, anthocyanins and decay incidence. The results for the chemical features showed statistical differences (p>0.05 except for the pH value at the end of the storage. There were differences between crop for all parameters. During the storage period, the anthocyanin content increased on the 2008 crop and reduced on the fruits of 2009. To reduce the decay incidence it is recommended to use the coating with kefir grains. These fruits can be consumed until the third day of storage at 10 ºC.A amora preta é um fruto que vem se destacando por apresentar compostos bioativos em sua composição, no entanto, a sua estrutura frágil reduz o seu consumo in natura. O objetivo deste trabalho foi avaliar a qualidade físico-química dos frutos de amora-preta, cv. Tupy, produzidas em sistema orgânico, e recobertos com emulsões a base de fécula de mandioca e grãos de kefir de água, armazenadas sob refrigeração. Os frutos foram separados em três tratamentos, sendo um controle (T1 e dois tratamentos com revestimentos. Os revestimentos usados foram: solução de fécula de mandioca a 2,5% (T2 e grãos de kefir de água a 20% (T3. Os frutos dos três tratamentos foram armazenados a 10 ± 2 ºC e UR 85

  3. Uranium resources

    International Nuclear Information System (INIS)

    1976-01-01

    This is a press release issued by the OECD on 9th March 1976. It is stated that the steep increases in demand for uranium foreseen in and beyond the 1980's, with doubling times of the order of six to seven years, will inevitably create formidable problems for the industry. Further substantial efforts will be needed in prospecting for new uranium reserves. Information is given in tabular or graphical form on the following: reasonably assured resources, country by country; uranium production capacities, country by country; world nuclear power growth; world annual uranium requirements; world annual separative requirements; world annual light water reactor fuel reprocessing requirements; distribution of reactor types (LWR, SGHWR, AGR, HWR, HJR, GG, FBR); and world fuel cycle capital requirements. The information is based on the latest report on Uranium Resources Production and Demand, jointly issued by the OECD's Nuclear Energy Agency (NEA) and the International Atomic Energy Agency. (U.K.)

  4. Algae Resources

    Energy Technology Data Exchange (ETDEWEB)

    None

    2016-06-01

    Algae are highly efficient at producing biomass, and they can be found all over the planet. Many use sunlight and nutrients to create biomass, which contain key components—including lipids, proteins, and carbohydrates— that can be converted and upgraded to a variety of biofuels and products. A functional algal biofuels production system requires resources such as suitable land and climate, sustainable management of water resources, a supplemental carbon dioxide (CO2) supply, and other nutrients (e.g., nitrogen and phosphorus). Algae can be an attractive feedstock for many locations in the United States because their diversity allows for highpotential biomass yields in a variety of climates and environments. Depending on the strain, algae can grow by using fresh, saline, or brackish water from surface water sources, groundwater, or seawater. Additionally, they can grow in water from second-use sources such as treated industrial wastewater; municipal, agricultural, or aquaculture wastewater; or produced water generated from oil and gas drilling operations.

  5. Evaluation of Polyphenol Anthocyanin-Enriched Extracts of Blackberry, Black Raspberry, Blueberry, Cranberry, Red Raspberry, and Strawberry for Free Radical Scavenging, Reactive Carbonyl Species Trapping, Anti-Glycation, Anti-β-Amyloid Aggregation, and Microglial Neuroprotective Effects

    Directory of Open Access Journals (Sweden)

    Hang Ma

    2018-02-01

    Full Text Available Glycation is associated with several neurodegenerative disorders, including Alzheimer’s disease (AD, where it potentiates the aggregation and toxicity of proteins such as β-amyloid (Aβ. Published studies support the anti-glycation and neuroprotective effects of several polyphenol-rich fruits, including berries, which are rich in anthocyanins. Herein, blackberry, black raspberry, blueberry, cranberry, red raspberry, and strawberry extracts were evaluated for: (1 total phenolic and anthocyanins contents, (2 free radical (DPPH scavenging and reactive carbonyl species (methylglyoxal; MGO trapping, (3 anti-glycation (using BSA-fructose and BSA-MGO models, (4 anti-Aβ aggregation (using thermal- and MGO-induced fibrillation models, and, (5 murine microglia (BV-2 neuroprotective properties. Berry crude extracts (CE were fractionated to yield anthocyanins-free (ACF and anthocyanins-enriched (ACE extracts. The berry ACEs (at 100 μg/mL showed superior free radical scavenging, reactive carbonyl species trapping, and anti-glycation effects compared to their respective ACFs. The berry ACEs (at 100 μg/mL inhibited both thermal- and MGO-induced Aβ fibrillation. In addition, the berry ACEs (at 20 μg/mL reduced H2O2-induced reactive oxygen species production, and lipopolysaccharide-induced nitric oxide species in BV-2 microglia as well as decreased H2O2-induced cytotoxicity and caspase-3/7 activity in BV-2 microglia. The free radical scavenging, reactive carbonyl trapping, anti-glycation, anti-Aβ fibrillation, and microglial neuroprotective effects of these berry extracts warrant further in vivo studies to evaluate their potential neuroprotective effects against AD.

  6. Resource Abundance and Resource Dependence in China

    NARCIS (Netherlands)

    Ji, K.; Magnus, J.R.; Wang, W.

    2010-01-01

    This paper reconsiders the ‘curse of resources’ hypothesis for the case of China, and distinguishes between resource abundance, resource rents, and resource dependence. Resource abundance and resource rents are shown to be approximately equivalent, and their association with resource dependence

  7. Electron radiography

    Science.gov (United States)

    Merrill, Frank E.; Morris, Christopher

    2005-05-17

    A system capable of performing radiography using a beam of electrons. Diffuser means receive a beam of electrons and diffuse the electrons before they enter first matching quadrupoles where the diffused electrons are focused prior to the diffused electrons entering an object. First imaging quadrupoles receive the focused diffused electrons after the focused diffused electrons have been scattered by the object for focusing the scattered electrons. Collimator means receive the scattered electrons and remove scattered electrons that have scattered to large angles. Second imaging quadrupoles receive the collimated scattered electrons and refocus the collimated scattered electrons and map the focused collimated scattered electrons to transverse locations on an image plane representative of the electrons' positions in the object.

  8. Ecologia da polinização da amoreira-preta (Rubus sp (Rosaceae em Timbó-SC, Brasil Pollination ecology of blackberry (Rubus sp. (Rosaceae in Timbo (SC, Brazil

    Directory of Open Access Journals (Sweden)

    Leônidas João de Mello Junior

    2011-09-01

    Full Text Available O presente trabalho verificou experimentalmente a ecologia da polinização da amoreira-preta (Rubus sp.. Objetivou-se confirmar a síndrome de polinização de Rubus sp., por meio de análise de seu sistema reprodutivo, quantificação da produção diária de néctar, levantamento da entomofauna que visita as flores da amoreira na área de estudo e análise do seu comportamento polinizador. Os experimentos foram realizados em uma área de cultivo de amoreira-preta, no mês de dezembro de 2005, município de Timbó (SC. Constatou-se que a maior taxa de frutificação (48,3 % ± 3,2 ocorreu via polinização livre, onde os insetos não foram excluídos. Foi verificada a ocorrência de autopolinização, porém com taxa inferior de frutificação (12,2% ± 4,9. A anemofilia não foi constatada na espécie. A avaliação da produção de néctar em Rubus sp. resultou em valores compatíveis com a síndrome de melitofilia. Os visitantes florais coletados e observados sobre as flores de Rubus sp. foram predominantemente abelhas da ordem Hymenoptera (97%, que iniciam, em menor número, a atividade de forrageamento às 8h, com pico de atividade às 12h e declinando até às 16h. As coletas resultaram numa amostragem de 1.360 abelhas, divididas em quatro famílias e 13 espécies. A família com maior riqueza de espécies (N = 7 foi Halictidae e a mais abundante foi Apidae, com 1.288 indivíduos. Em Apidae, houve o predomínio da espécie exótica Apis mellifera, cuja representação na amostra foi de 1.246 indivíduos. Os dados da abundância e as observações naturalísticas do seu comportamento da flor apontaram A. mellifera como o principal polinizador de Rubus sp., mas confirmam que as demais espécies de abelhas também participam na polinização de Rubus sp.The pollination ecology of the blackberry (Rubus sp. was studied by means of determining its reproductive system, the analysis of flower's nectar production. Sampling the insects that visit

  9. Energy resources

    CERN Document Server

    Simon, Andrew L

    1975-01-01

    Energy Resources mainly focuses on energy, including its definition, historical perspective, sources, utilization, and conservation. This text first explains what energy is and what its uses are. This book then explains coal, oil, and natural gas, which are some of the common energy sources used by various industries. Other energy sources such as wind, solar, geothermal, water, and nuclear energy sources are also tackled. This text also looks into fusion energy and techniques of energy conversion. This book concludes by explaining the energy allocation and utilization crisis. This publ

  10. Mineral resources

    International Nuclear Information System (INIS)

    1991-09-01

    This paper reports that to prevent the concentration of control over federal oil and gas resources in a few companies or individuals, Congress has limited the number of acres of oil and gas leases that one party may control in a single state. An exception to this limitation involves lease acreage within the boundaries of development contracts. These contracts permit oil and gas lease operators and pipeline companies to contract with enough lessees to economically justify large-scale drilling operations for the production and transportation of oil and gas, subject to approval by the Secretary of the Interior, who must find that such contracts are in the public interest. Since 1986 Interior has entered into or approved 10 contracts with 12 lease operators for exploration of largely unleased federal lands-ranging from about 180,000 to 3.5 million acres in four western states-and has designated them as developmental contracts. GAO believes that the 10 contracts do not satisfy the legal requirements for development contracts because they are for oil and gas exploration on largely unleased federal lands, rather than for developing existing leases. By designating the 10 contracts as development contracts, Interior has enabled nine of the 12 contract parties to accumulate lease acreage that vastly exceeds the statutory acreage limitation. All nine of the contract parties were major or large independent oil companies. As a result, other parties who wish to participate in developing federal oil and gas resources within the four states may be adversely affected because the parties to Interior's contracts have been able to compete for and obtain lease acreage beyond the statutory acreage limitation. Although Interior believes that the Secretary has the discretion under law to use development contracts in the current manner, in April 1989 it ceased issuing these contracts pending completion of GAO's review

  11. The Biomedical Resource Ontology (BRO) to enable resource discovery in clinical and translational research.

    Science.gov (United States)

    Tenenbaum, Jessica D; Whetzel, Patricia L; Anderson, Kent; Borromeo, Charles D; Dinov, Ivo D; Gabriel, Davera; Kirschner, Beth; Mirel, Barbara; Morris, Tim; Noy, Natasha; Nyulas, Csongor; Rubenson, David; Saxman, Paul R; Singh, Harpreet; Whelan, Nancy; Wright, Zach; Athey, Brian D; Becich, Michael J; Ginsburg, Geoffrey S; Musen, Mark A; Smith, Kevin A; Tarantal, Alice F; Rubin, Daniel L; Lyster, Peter

    2011-02-01

    The biomedical research community relies on a diverse set of resources, both within their own institutions and at other research centers. In addition, an increasing number of shared electronic resources have been developed. Without effective means to locate and query these resources, it is challenging, if not impossible, for investigators to be aware of the myriad resources available, or to effectively perform resource discovery when the need arises. In this paper, we describe the development and use of the Biomedical Resource Ontology (BRO) to enable semantic annotation and discovery of biomedical resources. We also describe the Resource Discovery System (RDS) which is a federated, inter-institutional pilot project that uses the BRO to facilitate resource discovery on the Internet. Through the RDS framework and its associated Biositemaps infrastructure, the BRO facilitates semantic search and discovery of biomedical resources, breaking down barriers and streamlining scientific research that will improve human health. Copyright © 2010 Elsevier Inc. All rights reserved.

  12. Electron detector

    International Nuclear Information System (INIS)

    Hashimoto, H.; Mogami, A.

    1975-01-01

    A device for measuring electron densities at a given energy level in an electron beam or the like having strong background noise, for example, in the detection of Auger electric energy spectrums is described. An electron analyzer passes electrons at the given energy level and at the same time electrons of at least one adjacent energy level. Detecting means associated therewith produce signals indicative of the densities of the electrons at each energy level and combine these signals to produce a signal indicative of the density of the electrons of the given energy level absent background noise

  13. Information resources

    Science.gov (United States)

    Friend, Milton; Franson, J. Christian; Friend, Milton; Gibbs, Samantha E.J.; Wild, Margaret A.

    2015-10-19

    During recent decades, natural resources agency personnel and others involved with the management and stewardship of wildlife have experienced an increasing need to access information and obtain technical assistance for addressing a diverse array of wildlife disease issues. This Chapter provides a broad overview of selected sources for obtaining supplemental information and technical assistance for addressing wildlife disease issues in North America. Specifically, examples of existing major wildlife disease programs focusing on free-ranging wildlife populations are highlighted; training opportunities for enhancing within-agency wildlife disease response are identified; a selected reading list of wildlife disease references is provided; and selected Web sites providing timely information on wildlife disease are highlighted. No attempt is made to detail all the North American programs and capabilities that address disease in free-ranging wildlife populations. Instead, this Chapter is focused on enhancing awareness of the types of capabilities that exist as potential sources for assistance and collaboration between wildlife conservation agency personnel and others in addressing wildlife disease issues.

  14. 研究/電子資源使用統計標準與規範之探討/陳雪華;許嘉珍;朱雅琦 | Study of the Electronic Resources Usage Statistics Standards and Guidelines/ Hsueh-Hua Chen;Chia-Chen Hsu;Ya-Chi Chu

    Directory of Open Access Journals (Sweden)

    陳雪華、許嘉珍、朱雅琦

    2007-04-01

    Full Text Available

    近年來,由於資訊科技的進步,圖書館中的電子資源數量快速增加,所佔預算金額比例也大幅增長。圖書館希望能夠透過評鑑電子資源的使用,以便能夠在電 子資源館藏發展等方面做出正確的決策。由於體認到電子資源使用統計之重要性,圖書館界與相關組織紛紛發展或修訂圖書館統計標準,增列電子資源使用統計的項 目以充分反映圖書館電子資源使用之狀況。本文主要採用文獻分析法以及內容分析法,收集探討並比較近軍來國內外電子資源使用統計之相關規範及標準,包含 ISO 2789、 ICOLC Guidelines、州ANSI/NISO Z39.7、CNS13151、ARL E-Metrlcs、E-Measures Project、以及Project COUNTER等。

    Recently, due to the advances of information technology, electronic resources are gradually replacing print resources as the largest consumer of library acquisition budgets. Logically, libraries want to evaluate the usage of electronic resources and incorporate the results into their decision making regarding electronic resource acquisition. Over these years, there is a general awareness among libraries to develop statistics standards and guidelines for library electronic resources usage. In this paper, literature review and content analysis methods are used to compare several library statistics standards, including: ISO 2789 、ICOLC Guidelines、ANSI/NISO Z39.7、CNS13151、ARL E-Metrics、E-Measures Project、and Project COUNTER etc.

    頁次:89-102

  15. Electron/electron acoustic instability

    International Nuclear Information System (INIS)

    Gary, S.P.

    1987-01-01

    The electron acoustic wave becomes a normal mode of an unmagnetized collisionless plasma in the presence of two electron components with similar densities, but strongly disparate temperatures. The characteristic frequency of this mode is the plasma frequency of the cooler electron component. If these two electron components have a relative drift speed several times the thermal speed of the cooler component, the electron/electron acoustic instability may arise. This paper describes the parametric dependences of the threshold drift speed and maximum growth rate of this instability, and compares these with the same properties of the electron/ion acoustic instability. Under the condition of zero current, the electron/ion acoustic instability typically has the lower threshold drift speed, so that observation of the electron/electron acoustic instability is a strong indication of the presence of an electrical current in the plasma

  16. Managing Tradeoffs in the Electronic Age.

    Science.gov (United States)

    Wagner, A. Ben

    2003-01-01

    Provides an overview of the development of electronic resources over the past three decades, discussing key features, disadvantages, and benefits of traditional online databases and CD-ROM and Web-based resources. Considers the decision to shift collections and resources toward purely digital formats, ownership of content, licensing, and user…

  17. Innovations in electronic services

    Directory of Open Access Journals (Sweden)

    Dagmara Wach

    2011-12-01

    Full Text Available Summarry Existence in electronic business has become increasingly difficult. High competition and considerable financial resources needed to enter electronic market are the problems of most micro and small sized enterprises, starting or developing their business. Nevertheless, there is a market niche for them, which can ensure success and grant partial financing of the business. This niche are small web projects, providing the customer with personalized service, hitting his tastes and meeting immediate needs. A projects that large websites are unable to perform. Financial sourcing of those projects comes from EU subsidies, in the framework of the Działanie 8.1. PO IG, 2007-2013.

  18. Electron Microscopy.

    Science.gov (United States)

    Beer, Michael

    1980-01-01

    Reviews technical aspects of structure determination in biological electron microscopy (EM). Discusses low dose EM, low temperature microscopy, electron energy loss spectra, determination of mass or molecular weight, and EM of labeled systems. Cites 34 references. (CS)

  19. Electronic components

    CERN Document Server

    Colwell, Morris A

    1976-01-01

    Electronic Components provides a basic grounding in the practical aspects of using and selecting electronics components. The book describes the basic requirements needed to start practical work on electronic equipment, resistors and potentiometers, capacitance, and inductors and transformers. The text discusses semiconductor devices such as diodes, thyristors and triacs, transistors and heat sinks, logic and linear integrated circuits (I.C.s) and electromechanical devices. Common abbreviations applied to components are provided. Constructors and electronics engineers will find the book useful

  20. Understand electronics

    CERN Document Server

    Bishop, Owen

    2013-01-01

    Understand Electronics provides a readable introduction to the exciting world of electronics for the student or enthusiast with little previous knowledge. The subject is treated with the minimum of mathematics and the book is extensively illustrated.This is an essential guide for the newcomer to electronics, and replaces the author's best-selling Beginner's Guide to Electronics.The step-by-step approach makes this book ideal for introductory courses such as the Intermediate GNVQ.

  1. Vacuum electronics

    CERN Document Server

    Eichmeier, Joseph A

    2008-01-01

    Nineteen experts from the electronics industry, research institutes and universities have joined forces to prepare this book. ""Vacuum Electronics"" covers the electrophysical fundamentals, the present state of the art and applications, as well as the future prospects of microwave tubes and systems, optoelectronics vacuum devices, electron and ion beam devices, light and X-ray emitters, particle accelerators and vacuum interrupters. These topics are supplemented by useful information about the materials and technologies of vacuum electronics and vacuum technology.

  2. Electronic Commerce

    OpenAIRE

    Slavko Đerić

    2016-01-01

    Electronic commerce can be defined in different ways. Any definition helps to understand and explain that concept as better as possible.. Electronic commerce is a set of procedures and technologies that automate the tasks of financial transactions using electronic means. Also, according to some authors, electronic commerce is defined as a new concept, which is being developed and which includes process of buying and selling or exchanging products, services or information via computer networks...

  3. Electronic Publishing.

    Science.gov (United States)

    Lancaster, F. W.

    1989-01-01

    Describes various stages involved in the applications of electronic media to the publishing industry. Highlights include computer typesetting, or photocomposition; machine-readable databases; the distribution of publications in electronic form; computer conferencing and electronic mail; collaborative authorship; hypertext; hypermedia publications;…

  4. ELECTRONIC SIGNATURES

    African Journals Online (AJOL)

    10332324

    (a) facilitate ecommerce;2. (b) remove and prevent barriers to electronic communications in South Africa;3. (c) ensure that electronic transactions in the Republic conform to the highest international standards;4. (d) promote the development of electronic transactions services which are responsive to the needs of users and ...

  5. Development of thematic sections of the "Ecology and management of natural resources", "Marine biology", "Pollution" of the Electronic Marine Atlas ESIMO on the Arctic seas of the Russian Federation

    Directory of Open Access Journals (Sweden)

    Moiseev D. V

    2016-03-01

    Full Text Available The paper briefly describes the history of appearance and purpose of the Electronic Marine Atlas ESIMO. The information sources used to build the thematic layers have been introduced. The methodology of data processing for the Atlas has been considered. Main results of the work and examples of the existing atlas have been presented

  6. Basic electronics

    CERN Document Server

    Holbrook, Harold D

    1971-01-01

    Basic Electronics is an elementary text designed for basic instruction in electricity and electronics. It gives emphasis on electronic emission and the vacuum tube and shows transistor circuits in parallel with electron tube circuits. This book also demonstrates how the transistor merely replaces the tube, with proper change of circuit constants as required. Many problems are presented at the end of each chapter. This book is comprised of 17 chapters and opens with an overview of electron theory, followed by a discussion on resistance, inductance, and capacitance, along with their effects on t

  7. Sticker electronics

    KAUST Repository

    Hussain, Muhammad Mustafa

    2017-09-08

    Electronic stickers may be manufactured on flexible substrates (110, 120, 130) as layers and packaged together. The package may then have an adhesive applied to one side to provide capability for sticking the electronic devices to surfaces. The stickers can be wrappable, placed on surfaces, glued on walls or mirrors or wood or stone, and have electronics (112, 122, 132) which may or may not be ultrathin. Packaging for the electronic sticker can use polymer on cellulose manufacturing and/or three dimensional (3-D) printing. The electronic stickers may provide lighting capability, sensing capability, and/or recharging capabilities.

  8. Electron Tree

    DEFF Research Database (Denmark)

    Appelt, Ane L; Rønde, Heidi S

    2013-01-01

    The photo shows a close-up of a Lichtenberg figure – popularly called an “electron tree” – produced in a cylinder of polymethyl methacrylate (PMMA). Electron trees are created by irradiating a suitable insulating material, in this case PMMA, with an intense high energy electron beam. Upon discharge......, during dielectric breakdown in the material, the electrons generate branching chains of fractures on leaving the PMMA, producing the tree pattern seen. To be able to create electron trees with a clinical linear accelerator, one needs to access the primary electron beam used for photon treatments. We...... appropriated a linac that was being decommissioned in our department and dismantled the head to circumvent the target and ion chambers. This is one of 24 electron trees produced before we had to stop the fun and allow the rest of the accelerator to be disassembled....

  9. Building the electronic industry's roadmaps

    Science.gov (United States)

    Boulton, William R.

    1995-02-01

    JTEC panelists found a strong consistency among the electronics firms they visited: all the firms had clear visions or roadmaps for their research and development activities and had committed resources to ensure that they achieve targeted results. The overarching vision driving Japan's electronics industry is that of achieving market success through developing appealing, high-quality, low-cost consumer goods - ahead of the competition. Specifics of the vision include improving performance, quality, and portability of consumer electronics products. Such visions help Japanese companies define in detail the roadmaps they will follow to develop new and improved electronic packaging technologies.

  10. Influência do meio de cultura, tipo e concentração de citocininas na multiplicação in vitro de amoreira-preta e framboeseira The influence of culture medium, cytokinin type and concentrations on in vitro multiplication of blackberry and raspberry

    Directory of Open Access Journals (Sweden)

    Luciene Nolasco Leitzke

    2010-04-01

    Full Text Available A amoreira-preta e a framboeseira são espécies pouco cultivadas no Brasil, porém representam uma ótima opção de diversificação para pequenas propriedades, por serem rústicas e com elevada produtividade. A propagação dessas espécies dá-se, principalmente, por meio de estacas de raiz e mesmo de hastes novas, porém, já é crescente o interesse pelo uso da micropropagação como um método alternativo de propagação vegetativa de plantas frutíferas. No entanto, existe a necessidade de se ajustar, para cada espécie, e/ou cultivar, as melhores condições de cultivo, para que se obtenha sucesso no processo. Assim, neste trabalho objetivou-se determinar o melhor meio de cultura (MS e WPM, o efeito das citocininas (BAP, 2iP, Zeatina e suas concentrações (0; 7,5 ;15 e 22,5 μM na multiplicação in vitro de amoreira-preta 'Xavante' e de framboeseira 'Batum' e 'Heritage'. De acordo com os resultados obtidos, conclui-se que, o meio MS e a citocinina BAP na concentração de 15 μM foi mais eficiente para ambas as espécies e cultivares, induzindo maior número médio de folhas, brotações e gemas. Quanto ao comprimento das brotações, observou-se um comportamento diferenciado entre espécie, cultivar e regulador. Para amoreira-preta, o cultivo em meio MS na ausência de regulador promoveu o aumento do comprimento das brotações, enquanto que para framboeseira 'Batum' e 'Heritage', melhores resultados foram obtidos na presença de citocininas, respectivamente, Zeatina e 2iP, independentemente das concentrações utilizadas.The blackberry and raspberry are species little cultivated in Brazil. However, they represent a valuable diversification option for small farms, once they are rustic and very productive. Root cuttings and softwood stem are the most widely practiced type of propagation. Recently, there has been an increased interest in the use of micropropagation as an alternative technique for fruit plant propagation. Nevertheless

  11. Dublin Core and Electronic Information Retrieval | Gbaje | Samaru ...

    African Journals Online (AJOL)

    Dublin Core (DC) provides a relatively simple and concise method for resource discovery of composite electronic resources over various networks. This article examines the importance and application of Dublin Core metadata in electronic resource discover over various networks. It is expected that the endorsement of ...

  12. Electronic Recruitment at CERN

    CERN Multimedia

    2004-01-01

    The Human Resources Department switches to electronic recruitment. From now on whenever you are involved in a recruitment action you will receive an e-mail giving you access to a Web folder. Inside you will find a shortlist of applications drawn up by the Human Resources Department. This will allow you to consult the folder, at the same time as everyone else involved in the recruitment process, for the vacancy you are interested in. This new electronic recruitment system, known as e-RT, will be introduced in a presentation given at 10 a.m. on 11 February in the Main Auditorium. Implemented by AIS (Administrative Information Services) and the Human Resources Department, e-RT will cover vacancies open in all of CERN's recruitment programmes. The electronic application system was initially made available to technical students in July 2003. By December it was extended to summer students, fellows, associates and Local Staff. Geraldine Ballet from the Recruitment Service prefers e-RT to mountains of paper! The Hu...

  13. The electron and the electronics

    International Nuclear Information System (INIS)

    Sanchez Balmaseda, M.

    1997-01-01

    The aim of this work is to present a brief report of those historical events that originated and contributed to the scientific area of Electronics. The main discovering and investigations in both Vacuum Electronics and Semiconductor Electronics are reviewed. (Author) 12 refs

  14. Natural resource depletion and the resource curse

    OpenAIRE

    Stokke, Linda

    2015-01-01

    This thesis studies the relationship between natural resources and economic wealth, in two parts. Previous studies have found a negative relationship between natural resources and economic wealth, a phenomenon known as the curse of natural resources. Later studies reject the resource curse, in its simplest form, as their findings show a positive relationship when measuring economic wealth by GDP levels instead of growth. The argument is that the inclusion of initial GDP, when u...

  15. Electronic Commerce

    Directory of Open Access Journals (Sweden)

    Slavko Đerić

    2016-12-01

    Full Text Available Electronic commerce can be defined in different ways. Any definition helps to understand and explain that concept as better as possible.. Electronic commerce is a set of procedures and technologies that automate the tasks of financial transactions using electronic means. Also, according to some authors, electronic commerce is defined as a new concept, which is being developed and which includes process of buying and selling or exchanging products, services or information via computer networks, including the Internet. Electronic commerce is not limited just to buying and selling, but it also includes all pre-sales and after-sales ongoing activities along the supply chain. Introducing electronic commerce, using the Internet and Web services in business, realizes the way to a completely new type of economy - internet economy.

  16. Electron spectroscopy

    International Nuclear Information System (INIS)

    Hegde, M.S.

    1979-01-01

    An introduction to the various techniques in electron spectroscopy is presented. These techniques include: (1) UV Photoelectron spectroscopy, (2) X-ray Photoelectron spectroscopy, (3) Auger electron spectroscopy, (4) Electron energy loss spectroscopy, (5) Penning ionization spectroscopy and (6) Ion neutralization spectroscopy. The radiations used in each technique, the basis of the technique and the special information obtained in structure determination in atoms and molecules by each technique are summarised. (A.K.)

  17. Challenges of accessibility of information resources by the post ...

    African Journals Online (AJOL)

    The findings revealed that library resources were not easily accessible to the students as a result of inadequacies emanating from out-datedness of resources; ineffective bibliographic organization and ineffective library services. It was recommended among others that electronic /online information resources should be ...

  18. INTEGRATION OF OPEN ACCESS SCIENTIFIC AND EDUCATIONAL INFORMATION RESOURCES

    Directory of Open Access Journals (Sweden)

    V. I. Brichkovskij

    2013-01-01

    Full Text Available The current state of the generation, use and dissemination of electronic information resources is analyzed. The integration of information resources and services through the application of advanced technologies of metadata have been considered. An approach aimed at creating a single information space of research and educational resources of open access is offered.

  19. Polymer electronics

    CERN Document Server

    Hsin-Fei, Meng

    2013-01-01

    Polymer semiconductor is the only semiconductor that can be processed in solution. Electronics made by these flexible materials have many advantages such as large-area solution process, low cost, and high performance. Researchers and companies are increasingly dedicating time and money in polymer electronics. This book focuses on the fundamental materials and device physics of polymer electronics. It describes polymer light-emitting diodes, polymer field-effect transistors, organic vertical transistors, polymer solar cells, and many applications based on polymer electronics. The book also disc

  20. Electron Bifurcation

    Energy Technology Data Exchange (ETDEWEB)

    Peters, John W.; Miller, Anne-Frances; Jones, Anne K.; King, Paul W.; Adams, Michael W. W.

    2016-04-01

    Electron bifurcation is the recently recognized third mechanism of biological energy conservation. It simultaneously couples exergonic and endergonic oxidation-reduction reactions to circumvent thermodynamic barriers and minimize free energy loss. Little is known about the details of how electron bifurcating enzymes function, but specifics are beginning to emerge for several bifurcating enzymes. To date, those characterized contain a collection of redox cofactors including flavins and iron-sulfur clusters. Here we discuss the current understanding of bifurcating enzymes and the mechanistic features required to reversibly partition multiple electrons from a single redox site into exergonic and endergonic electron transfer paths.

  1. Microfluidic electronics.

    Science.gov (United States)

    Cheng, Shi; Wu, Zhigang

    2012-08-21

    Microfluidics, a field that has been well-established for several decades, has seen extensive applications in the areas of biology, chemistry, and medicine. However, it might be very hard to imagine how such soft microfluidic devices would be used in other areas, such as electronics, in which stiff, solid metals, insulators, and semiconductors have previously dominated. Very recently, things have radically changed. Taking advantage of native properties of microfluidics, advances in microfluidics-based electronics have shown great potential in numerous new appealing applications, e.g. bio-inspired devices, body-worn healthcare and medical sensing systems, and ergonomic units, in which conventional rigid, bulky electronics are facing insurmountable obstacles to fulfil the demand on comfortable user experience. Not only would the birth of microfluidic electronics contribute to both the microfluidics and electronics fields, but it may also shape the future of our daily life. Nevertheless, microfluidic electronics are still at a very early stage, and significant efforts in research and development are needed to advance this emerging field. The intention of this article is to review recent research outcomes in the field of microfluidic electronics, and address current technical challenges and issues. The outlook of future development in microfluidic electronic devices and systems, as well as new fabrication techniques, is also discussed. Moreover, the authors would like to inspire both the microfluidics and electronics communities to further exploit this newly-established field.

  2. Electronics Industry

    National Research Council Canada - National Science Library

    Bell, Robert; Carroll-Garrison, Martina; Donovan, Daniel; Fisher, John; Guemmer, Paul; Harms, Robert; Kelly, Timothy; Love, Mattie; McReynolds, James; Ward, Ralph

    2006-01-01

    .... Government action to preserve strategic access to semiconductor producers is clearly needed to ensure DoD electronic systems can be built without compromising sensitive technology, though every...

  3. Isolated electrons

    Energy Technology Data Exchange (ETDEWEB)

    Ekstrom, Ph.; Winwland, D.

    1981-08-01

    The problem of electron g-factor measurement by means of an isolated electron is considered. The technique of the experiment performed at the Washington university is described. A single electron is enclosed in a homogeneous magnetic field which is superimposed by an electric field. The electric field configuration represents a Penning trap. The trap together with the enclosed electron forms an ''atom'' of macroscopic dimensions. The electron trajectory in the trap consists of three components. The electron quickly rotates over small loops (cyclotron motion), the centre of these loops slowly moves over a large circle (magistron motion). Meanwhile the electron oscillates back and forth along the trap axis. The electron motion in the atom field is quantized and the transitions between various types of motions correspond to definite radiation frequencies. At the anomal frequency the transition with spin flip is registered and the electron g-factor is measured. The value g=2.0023193044 is obtained with a probable error less than a unit of the last decimal digit.

  4. The electron

    International Nuclear Information System (INIS)

    Hestenes, David; Weingartshofer, Antonio

    1991-01-01

    The stupendous successes of the Dirac equation and quantum electro-dynamics have established the electron as the best understood of the fundamental constituents of matter. Nevertheless, physicists agree that the electron still has secrets to reveal. Moreover, powerful new theoretical and experimental tools for probing those secrets have been sharpened during the last decade. This workshop was organized to bring theorists and experimentalists together to discuss their common goal of knowing the electron. Present state and future prospects for progress toward that goal are here described. The theoretical papers encompass a wide range of views on the electron. Several argue that the 'Zitter-bewegung' is more than a mathematical peculiarity of the Dirac equation, that it may well be a real physical phenomenon and worthy of serious study, theoretically and experimentally. Besides generating the electron spin and magnetic moment, the 'Zitterbewegung' may be a vital clue to electron structure and self-interaction. Some of the papers employ a radical new formulation of the Dirac theory which reveals a hidden geo-metric structure in the theory that supports a 'Zitterbewegung' inter-pretation. For the last half century the properties of electrons have been probed primarily by scattering experiments at ever higher energies. Recently, however, two powerful new experimental techniques have emerged capable of giving alternative experimental views of the electron. First, techniques for confining single electrons for long term study have led to the most accurate measurements of the electron magnetic moment. Second, the interaction of high intensity laser fields with atoms and electrons have revealed striking new phenomena such as multiphoton ionization. refs.; figs.; tabs

  5. Electronic marketplaces

    OpenAIRE

    TALAFOUSOVÁ, Jana

    2011-01-01

    This thesis describes the principles of electronic and Internet marketplaces. For analyzing the status of the use of electronic marketplaces and online polling was done with the actual marketplace and society, which is a member of the marketplace. Proposal that trade through the market is prepared for a particular company, which previously traded through the marketplace.

  6. Printed Electronics

    Science.gov (United States)

    Crain, John M. (Inventor); Lettow, John S. (Inventor); Aksay, Ilhan A. (Inventor); Korkut, Sibel (Inventor); Chiang, Katherine S. (Inventor); Chen, Chuan-Hua (Inventor); Prud'Homme, Robert K. (Inventor)

    2016-01-01

    Printed electronic device comprising a substrate onto at least one surface of which has been applied a layer of an electrically conductive ink comprising functionalized graphene sheets and at least one binder. A method of preparing printed electronic devices is further disclosed.

  7. Power electronics

    Indian Academy of Sciences (India)

    Kishore Chatterjee

    reference material for power electronics engineers, students and academicians. We thank the editors of Sadhana for inviting us to guest-edit this special issue on power electronics. July 2017. KISHORE CHATTERJEE. Department of Electrical Engineering,. Indian Institute of Technology,. Bombay, Powai, Mumbai 400076, ...

  8. Introduction of home electronics for the future

    Science.gov (United States)

    Yoshimoto, Hideyuki; Shirai, Iwao

    Development of electronics has accelerated the automation and labor saving at factories and offices. Home electronics is also expected to be needed more and more in Japan towards the 21st century, as the advanced information society and the elderly society will be accelerated, and women's participation in social affairs will be increased. Resources Council, which is the advisory organ of the Minister of State for Science and Technology, forecast to what extent home electronics will be popularized by the year of 2010. The Council expected to promote home electronics, because resource and energy saving should be accelerated and people should enjoy much more their individual lives at home.

  9. Electronic Commerce and Electronic Business

    Indian Academy of Sciences (India)

    R. Narasimhan (Krishtel eMaging) 1461 1996 Oct 15 13:05:22

    This special issue is motivated by the recent upsurge of research activity in the areas of electronic commerce and electronic business both in India and all over the world. The current research activity is quite intensive in the use of mathematical tools such as cryptography, game theory, mechanism design, optimization, ...

  10. Electronic identity

    CERN Document Server

    de Andrade, Norberto Nuno Gomes; Argles, David

    2014-01-01

    With the increasing availability of electronic services, security and a reliable means by which identity is verified is essential.Written by Norberto Andrade the first chapter of this book provides an overview of the main legal and regulatory aspects regarding electronic identity in Europe and assesses the importance of electronic identity for administration (public), business (private) and, above all, citizens. It also highlights the role of eID as a key enabler of the economy.In the second chapter Lisha Chen-Wilson, David Argles, Michele Schiano di Zenise and Gary Wills discuss the user-cent

  11. Electronic diagrams

    CERN Document Server

    Colwell, Morris A

    1976-01-01

    Electronic Diagrams is a ready reference and general guide to systems and circuit planning and in the preparation of diagrams for both newcomers and the more experienced. This book presents guidelines and logical procedures that the reader can follow and then be equipped to tackle large complex diagrams by recognition of characteristic 'building blocks' or 'black boxes'. The goal is to break down many of the barriers that often seem to deter students and laymen in learning the art of electronics, especially when they take up electronics as a spare time occupation. This text is comprised of nin

  12. Digital electronics

    CERN Document Server

    Morris, John

    2013-01-01

    An essential companion to John C Morris's 'Analogue Electronics', this clear and accessible text is designed for electronics students, teachers and enthusiasts who already have a basic understanding of electronics, and who wish to develop their knowledge of digital techniques and applications. Employing a discovery-based approach, the author covers fundamental theory before going on to develop an appreciation of logic networks, integrated circuit applications and analogue-digital conversion. A section on digital fault finding and useful ic data sheets completes th

  13. Starting electronics

    CERN Document Server

    Brindley, Keith

    2005-01-01

    Starting Electronics is unrivalled as a highly practical introduction for hobbyists, students and technicians. Keith Brindley introduces readers to the functions of the main component types, their uses, and the basic principles of building and designing electronic circuits. Breadboard layouts make this very much a ready-to-run book for the experimenter; and the use of multimeter, but not oscilloscopes, puts this practical exploration of electronics within reach of every home enthusiast's pocket. The third edition has kept the simplicity and clarity of the original. New material

  14. Polymer electronics

    CERN Document Server

    Geoghegan, Mark

    2013-01-01

    Polymer electronics is the science behind many important new developments in technology, such as the flexible electronic display (e-ink) and many new developments in transistor technology. Solar cells, light-emitting diodes, and transistors are all areas where plastic electronics is likely to, or is already having, a serious impact on our daily lives. With polymer transistors and light-emitting diodes now being commercialised, there is a clear need for a pedagogic text thatdiscusses the subject in a clear and concise fashion suitable for senior undergraduate and graduate students. The content

  15. Stretchable electronics

    CERN Document Server

    Someya, Takao

    2012-01-01

    With its comprehensive coverage this handbook and ready reference brings together some of the most outstanding scientists in the field to lay down the undisputed knowledge on how to make electronics stretchable.As such, it focuses on gathering and evaluating the materials, designs, models and technologies that enable the fabrication of fully elastic electronic devices which can sustain high strain. Furthermore, it provides a review of those specific applications that directly benefit from highly compliant electronics, including transistors, photonic devices and sensors. In addition to stre

  16. Australian uranium resources

    International Nuclear Information System (INIS)

    Battey, G.C.; Miezitis, Y.; McKay, A.D.

    1987-01-01

    Australia's uranium resources amount to 29% of the WOCA countries (world outside centrally-planned-economies areas) low-cost Reasonably Assured Resources and 28% of the WOCA countries low-cost Estimated Additional Resources. As at 1 January 1986, the Bureau of Mineral Resources estimated Australia's uranium resources as: (1) Cost range to US$80/kg U -Reasonably Assured Resources, 465 000 t U; Estimated Additional Resources, 256 000 t U; (2) Cost range US$80-130/kg U -Reasonably Assured Resources, 56 000 t U; Estimated Additional Resources, 127 000 t U. Most resources are contained in Proterozoic unconformity-related deposits in the Alligator Rivers uranium field in the Northern Territory (Jabiluka, Ranger, Koongarra, Nabarlek deposits) and the Proterozoic stratabound deposit at Olympic Dam on the Stuart Shelf in South Australia

  17. Electronic Elections

    DEFF Research Database (Denmark)

    Schürmann, Carsten

    2009-01-01

    Electronic voting technology is a two edged sword. It comes with many risks but brings also many benefits. Instead of flat out rejecting the technology as uncontrollably dangerous, we advocate in this paper a different technological angle that renders electronic elections trustworthy beyond...... the usual levels of doubt. We exploit the trust that voters currently have into the democratic process and model our techniques around that observation accordingly. In particular, we propose a technique of trace emitting computations to record the individual steps of an electronic voting machine...... for a posteriori validation on an acceptably small trusted computing base. Our technology enables us to prove that an electronic elections preserves the voter’s intent, assuming that the voting machine and the trace verifier are independent....

  18. Electron Scattering

    International Nuclear Information System (INIS)

    Li, Xiaodong; Lee, Kyong Sei; Shaw, J.J.; Bahri, C.

    1990-01-01

    Electron scattering is one of the best probes available to us to probe the nucleus. It has revealed to us, with unprecedented accuracy, the charge and current distributions of nuclei. It has provided us with positive evidence for meson exchange currents. It was used to 'discover' the quark and it revealed to us that nucleons may be modified in the nuclear environment (EMC Effect). In short, electron scattering has revolutionized the study of nuclear physics. Several recent developments will insure that electron beams which will soon become availabe at CEBAF, Bates and elsewhere will make high-precision coincidence experiments possible. As the technology is becoming available, we are just beginning to exploit polarization degrees of freedom in our experiments. In this paper, we will introduce the formalism of electron scattering, review what we have learned in the past and look ahead toward the future

  19. Paper electronics.

    Science.gov (United States)

    Tobjörk, Daniel; Österbacka, Ronald

    2011-05-03

    Paper is ubiquitous in everyday life and a truly low-cost substrate. The use of paper substrates could be extended even further, if electronic applications would be applied next to or below the printed graphics. However, applying electronics on paper is challenging. The paper surface is not only very rough compared to plastics, but is also porous. While this is detrimental for most electronic devices manufactured directly onto paper substrates, there are also approaches that are compatible with the rough and absorptive paper surface. In this review, recent advances and possibilities of these approaches are evaluated and the limitations of paper electronics are discussed. Copyright © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

  20. Electronic plants

    Science.gov (United States)

    Stavrinidou, Eleni; Gabrielsson, Roger; Gomez, Eliot; Crispin, Xavier; Nilsson, Ove; Simon, Daniel T.; Berggren, Magnus

    2015-01-01

    The roots, stems, leaves, and vascular circuitry of higher plants are responsible for conveying the chemical signals that regulate growth and functions. From a certain perspective, these features are analogous to the contacts, interconnections, devices, and wires of discrete and integrated electronic circuits. Although many attempts have been made to augment plant function with electroactive materials, plants’ “circuitry” has never been directly merged with electronics. We report analog and digital organic electronic circuits and devices manufactured in living plants. The four key components of a circuit have been achieved using the xylem, leaves, veins, and signals of the plant as the template and integral part of the circuit elements and functions. With integrated and distributed electronics in plants, one can envisage a range of applications including precision recording and regulation of physiology, energy harvesting from photosynthesis, and alternatives to genetic modification for plant optimization. PMID:26702448

  1. Electron Emitters

    National Research Council Canada - National Science Library

    Tzeng, Yonhua

    2002-01-01

    When two carbon-nanotube coated electrodes are placed at a small distance from each other, electron emission from carbon nanotubes allows a DC or AC electrical current to flow between these two electrodes...

  2. Electron Microprobe

    Data.gov (United States)

    Federal Laboratory Consortium — The JEOL JXA-8600 is a conventional hairpin filament thermal emission electron microprobe that is more than 20 years old. It is capable of performing qualitative and...

  3. Electronic spectroscopies

    OpenAIRE

    Weckhuysen, B.M.; Schoonheydt, R.A.

    2000-01-01

    Diffuse reflectance spectroscopy (DRS) in the ultraviolet, visible and near-infrared region is a versatile spectroscopic technique, as both d-d and charge transfer transitions of supported TMI can be probed. One of the advantages of electronic spectroscopy is that the obtained information is directly chemical since the outer shell electrons of the TMI are probed and provide information about the oxidation state and coordination environment of TMI on surfaces. Furthermore, the DRS technique ca...

  4. Electronic commerce

    OpenAIRE

    Zvolánková, Pavla

    2010-01-01

    The thesis deals with a description of electronic commerce from its beginning up to present situation in this area. It explains basic terms connected with electronic commerce and it summarizes the relevant legislation. Moreover it describes e-contracts and rights and duties of both contractual parties. The main view is the view of Internet retailer, which is reflected in the practical part focused on concrete problems of retailers.

  5. Spin Electronics

    Science.gov (United States)

    2003-08-01

    applications, a ferromagnetic metal may be used as a source of spin-polarized electronics to be injected into a semiconductor, a superconductor or a...physical phenomena in II-VI and III-V semiconductors. In II-VI systems, the Mn2+ ions act to boost the electron spin precession up to terahertz ...conductors, proximity effect between ferromagnets and superconductors , and the effects of spin injection on the physical properties of the

  6. Students developing resources for students.

    Science.gov (United States)

    Pearce, Michael; Evans, Darrell

    2012-06-01

    The development of new technologies has provided medical education with the ability to enhance the student learning experience and meet the needs of changing curricula. Students quickly adapt to using multimedia learning resources, but these need to be well designed, learner-centred and interactive for students to become significantly engaged. One way to ensure that students become committed users and that resources become distinct elements of the learning cycle is to involve students in resource design and production. Such an approach enables resources to accommodate student needs and preferences, but also provides opportunities for them to develop their own teaching and training skills. The aim of the medical student research project was to design and produce an electronic resource that was focused on a particular anatomical region. The views of other medical students were used to decide what features were suitable for inclusion and the resulting package contained basic principles and clinical relevance, and used a variety of approaches such as images of cadaveric material, living anatomy movies and quizzes. The completed package was assessed using a survey matrix and found to compare well with commercially available products. Given the ever-diversifying arena of multimedia instruction and the ability of students to be fully conversant with technology, this project demonstrates that students are ideal participants and creators of multimedia resources. It is hoped that such an approach will help to further develop the skill base of students, but will also provide an avenue of developing packages that are student user friendly, and that are focused towards particular curricula requirements. © Blackwell Publishing Ltd 2012.

  7. Looking for Guidelines for the Production of Electronic Textbooks.

    Science.gov (United States)

    Landoni, M.; Wilson, R.; Gibb, F.

    2001-01-01

    Reports the results of two studies of electronic book production, including production on the World Wide Web, and explains EBONI (Electronic Books On-screen Interface) that focuses on the evaluation of electronic resources and compiling guidelines for publishing electronic materials on the Internet for the United Kingdom higher education…

  8. Micropropagação da amoreira-preta (Rubus spp. e efeito de substratos na aclimatização de plântulas = Blackberry micropropagation (Rubus spp. and effects of substrates in plants acclimatization

    Directory of Open Access Journals (Sweden)

    Fabíola Villa

    2006-01-01

    Full Text Available O objetivo do presente estudo foi aprimorar técnicas de propagação in vitro e determinar um melhor substrato para a amoreira-preta. O primeiro experimento consistiu de gemas axilares com cerca de 2 cm, oriundas de plântulas preestabelecidas in vitro da cv. Ébano, excisadas e inoculadas em meio MS, suplementado com 5 concentrações de carvão ativado e 5 de BAP. Ambos os experimentos foram inteiramente casualisados, utilizando-se in vitro 3 explantes por repetição e 4 repetições por tratamento e em casa-de-vegetação um fatorial 4x4. O pH do meio foi ajustado para 5,8 antes da adição de 6 g L-1 de ágar e da autoclavagem a 121ºC e 1 atm por 20 minutos. Após 70 dias, foram avaliados diversos parâmetros nos explantes. Maior número de folhas e maior número de raízes foram obtidos com 0,5 mg L-1 de BAP. Na presença de 3 g L-1 de carvão ativado, o número e comprimento de raízes foi maior. Maior biomassa fresca foi obtido na ausência de carvão ativado. O segundo experimento consistiu de plântulas da cv. Cherokee mantidas em condições in vitro e transplantadas para bandejas plásticas, contendo os substratos e mantidas em casa-de-vegetação. Foram testados 4 tipos de substratos. Após 100 dias de aclimatização, foram avaliados números de folhas, comprimento das raízes e da parte aérea, peso fresco e seco das raízes e peso fresco e seco da parte aérea. Foi possível concluir que a aclimatização pode ser realizada com sucesso, utilizando-se Plantmax. seguido da mistura de Plantmax. + vermiculita + casca de arroz carbonizada e vermiculita. Houve 92% de sobrevivência de plantas em todos os substratos.The objective of the present study was to achieve the improved techniques in in vitro propagation and to determine a better substrate for the blackberry. The first experiment consisted of nodal segments of plants with ±2 cm of length obtained from in vitro culture cv. Ebano, excised and inoculated in MS culture medium

  9. Sustainable polymers from renewable resources.

    Science.gov (United States)

    Zhu, Yunqing; Romain, Charles; Williams, Charlotte K

    2016-12-14

    Renewable resources are used increasingly in the production of polymers. In particular, monomers such as carbon dioxide, terpenes, vegetable oils and carbohydrates can be used as feedstocks for the manufacture of a variety of sustainable materials and products, including elastomers, plastics, hydrogels, flexible electronics, resins, engineering polymers and composites. Efficient catalysis is required to produce monomers, to facilitate selective polymerizations and to enable recycling or upcycling of waste materials. There are opportunities to use such sustainable polymers in both high-value areas and in basic applications such as packaging. Life-cycle assessment can be used to quantify the environmental benefits of sustainable polymers.

  10. Numerical simulation of transient moisture and temperature distribution in polycarbonate and aluminum electronic enclosures

    DEFF Research Database (Denmark)

    Shojaee Nasirabadi, Parizad; Jabbaribehnam, Mirmasoud; Hattel, Jesper Henri

    2016-01-01

    The challenge of developing a reliable electronic product requires huge amounts of resources and knowledge. Temperature and thermal features directly affect the life of electronic products. Furthermore, moisture can be damaging for electronic components. Nowadays, computational fluid dynamics (CF...

  11. Spin electronics

    CERN Document Server

    Buhrman, Robert; Daughton, James; Molnár, Stephan; Roukes, Michael

    2004-01-01

    This report is a comparative review of spin electronics ("spintronics") research and development activities in the United States, Japan, and Western Europe conducted by a panel of leading U.S. experts in the field. It covers materials, fabrication and characterization of magnetic nanostructures, magnetism and spin control in magnetic nanostructures, magneto-optical properties of semiconductors, and magnetoelectronics and devices. The panel's conclusions are based on a literature review and a series of site visits to leading spin electronics research centers in Japan and Western Europe. The panel found that Japan is clearly the world leader in new material synthesis and characterization; it is also a leader in magneto-optical properties of semiconductor devices. Europe is strong in theory pertaining to spin electronics, including injection device structures such as tunneling devices, and band structure predictions of materials properties, and in development of magnetic semiconductors and semiconductor heterost...

  12. Electronic Commerce

    Energy Technology Data Exchange (ETDEWEB)

    Laird, N. [NRG Information Services Inc., Calgary, AB (Canada)

    1995-11-01

    The concept of electronic commerce in the gas industry was discussed. It was defined as the integration of communication technology, advanced information processing capability and business standards, to improve effectiveness of the business process. Examples of electronic data interchange from the automotive, airline, and banking industry were given. The objective of using this technology in the gas industry was described as the provision of one electronic facility to make seamless contractual and operational arrangements for moving natural gas across participating pipelines. The benefit of seamless integration - one readily available standard system used by several companies - was highlighted. A list of value-added services such as the free movement of bulletins, directories, nominations,and other documents was provided.

  13. Resources, Technology, and Strategy

    DEFF Research Database (Denmark)

    Resources, Technology and Strategy brings together contributors from Europe, North America and Asia to consider the strategic relationship between technology and other resources, such as production capabilities, marketing prowess, finance and organisational culture. Throughout the book...

  14. Current Resource Imagery Projects

    Data.gov (United States)

    Farm Service Agency, Department of Agriculture — Map showing coverage of current Resource imagery projects. High resolution/large scale Resource imagery is typically acquired for the U.S. Forest Service and other...

  15. Resource Prospector Project

    Data.gov (United States)

    National Aeronautics and Space Administration — Resource Prospector (RP) is an in-situ resource utilization (ISRU) capability demonstration activity currently planned for launch to he Moon in 2022. Expanding human...

  16. Vermont Natural Resources Atlas

    Data.gov (United States)

    Vermont Center for Geographic Information — The purpose of the�Natural Resources Atlas�is to provide geographic information about environmental features and sites that the Vermont Agency of Natural Resources...

  17. Solar Resource Assessment

    Energy Technology Data Exchange (ETDEWEB)

    Renne, D.; George, R.; Wilcox, S.; Stoffel, T.; Myers, D.; Heimiller, D.

    2008-02-01

    This report covers the solar resource assessment aspects of the Renewable Systems Interconnection study. The status of solar resource assessment in the United States is described, and summaries of the availability of modeled data sets are provided.

  18. Hydrography - Water Resources

    Data.gov (United States)

    NSGIC Education | GIS Inventory — A Water Resource is a DEP primary facility type related to the Water Use Planning Program. The sub-facility types related to Water Resources that are included are:...

  19. Knowledge and Natural Resources

    DEFF Research Database (Denmark)

    Bertelsen, Rasmus Gjedssø; Justinussen, Jens Christian Svabo

    2016-01-01

    Arctic economies are generally natural resource based economies, whether they are indigenous economies largely dependent on living on the land or industrialized economies depending on marine resources, mineral resources or fossil or renewable energy resources. However, the central role of knowledge...... for Arctic communities to secure local benefits and achieve sustainable development around their natural resources is often overlooked in the literature. This chapter will look at the knowledge-natural resources link for local benefits and sustainable Arctic development. For doing so, the chapter will focus...... on the Icelandic and Faroese experiences with marine resources and renewable energy resources in geothermal, hydro, tidal and wind power. Iceland and the Faroe Islands are selected because they are examples of very small Arctic societies, which particularly well illustrate how the combination of human capital...

  20. Human Resources Coordinator | IDRC - International Development ...

    International Development Research Centre (IDRC) Digital Library (Canada)

    Job Summary Under the direction of the Director of Human Resources, the Administrative Assistant provides operational and administrative assistance to her ... BoG, SMC; lead the management of paper and electronic records for the Division; provide directions for the proper preparation of goods and services contracts and ...

  1. Continuing Education for E-Resources

    Science.gov (United States)

    Grogg, Jill E.

    2008-01-01

    Library schools may be teaching some of the theoretical framework necessary to perform the duties of electronic resource librarianship. However, a gap remains "between practical needs, as expressed in position descriptions, and the theoretical way in which library school courses address those needs." To fill this gap, professional associations…

  2. Human Resource Management System

    OpenAIRE

    Navaz, A. S. Syed; Fiaz, A. S. Syed; Prabhadevi, C.; Sangeetha, V.; Gopalakrishnan, S.

    2013-01-01

    The paper titled HUMAN RESOURCE MANAGEMENT SYSTEM is basically concerned with managing the Administrator of HUMAN RESOURCE Department in a company. A Human Resource Management System, refers to the systems and processes at the intersection between human resource management and information technology. It merges HRM as a discipline and in particular its basic HR activities and processes with the information technology field, whereas the programming of data processing systems evolved into standa...

  3. Save Our Water Resources.

    Science.gov (United States)

    Bromley, Albert W.

    The purpose of this booklet, developed as part of Project SOAR (Save Our American Resources), is to give Scout leaders some facts about the world's resources, the sources of water pollution, and how people can help in obtaining solutions. Among the topics discussed are the world's water resources, the water cycle, water quality, sources of water…

  4. International Resource Management.

    Science.gov (United States)

    Schabel, H. G.

    The International Resource Management program enables undergraduate students of the University of Wisconsin, Stevens Point, College of Natural Resources to complete an academic minor in International Resource Management. The program attempts to alert students and faculty to global environmental issues and their interconnectedness with a variety of…

  5. The cellulose resource matrix

    NARCIS (Netherlands)

    Keijsers, E.R.P.; Yilmaz, G.; Dam, van J.E.G.

    2013-01-01

    The emerging biobased economy is causing shifts from mineral fossil oil based resources towards renewable resources. Because of market mechanisms, current and new industries utilising renewable commodities, will attempt to secure their supply of resources. Cellulose is among these commodities, where

  6. Gaseous Electronics Tables, Atoms, and Molecules

    CERN Document Server

    Raju, Gorur Govinda

    2011-01-01

    With the constant emergence of new research and application possibilities, gaseous electronics is more important than ever in disciplines including engineering (electrical, power, mechanical, electronics, and environmental), physics, and electronics. The first resource of its kind, Gaseous Electronics: Tables, Atoms, and Molecules fulfills the author's vision of a stand-alone reference to condense 100 years of research on electron-neutral collision data into one easily searchable volume. It presents most--if not all--of the properly classified experimental results that scientists, researchers,

  7. Electronic spectroscopies

    NARCIS (Netherlands)

    Weckhuysen, B.M.; Schoonheydt, R.A.

    2000-01-01

    Diffuse reflectance spectroscopy (DRS) in the ultraviolet, visible and near-infrared region is a versatile spectroscopic technique, as both d-d and charge transfer transitions of supported TMI can be probed. One of the advantages of electronic spectroscopy is that the obtained information is

  8. Greening Electronics

    DEFF Research Database (Denmark)

    Pizzol, Massimo; Søes Kokborg, Morten; Thomsen, Marianne

    Based on a literature review with focus on hazardous substances in waste electric and electronic equipment (WEEE) and numbers from a Danish treatment facility a flow analysis for specific substances has been conducted. Further, the accessible knowledge on human and environmental effects due to po...

  9. Electronic Government

    DEFF Research Database (Denmark)

    Wimmer, Maria A.; Traunmüller, Roland; Grönlund, Åke

    This book constitutes the refereed proceedings of the 4th International Conference on Electronic Government, EGOV 2005, held in Copenhagen, Denmark, in August 2005. The 30 revised papers presented were carefully reviewed and selected from numerous submissions, and assess the state-of-the-art in e...

  10. Electronic Commerce

    Indian Academy of Sciences (India)

    2000-11-30

    Nov 30, 2000 ... applications of internet are exchange of electronic mail, ex- change of files (text as well as multimedia), storing information in a form which allows other computers connected to the internet to access it and remote logging into a computer and using it to run programs. For two computers in different locations to.

  11. Electronic Commerce

    Indian Academy of Sciences (India)

    Electronic commerce usually uses a public switched telephone network (PSTN) and is often between entities which are not known to one another. Ensuring security of communication between the entities participating in e-commerce is hence an important requirement. Apart from ensuring the security of messages on the ...

  12. Nuclear electronics

    International Nuclear Information System (INIS)

    Friese, T.

    1981-09-01

    A short survey is given on nuclear radiation detectors and nuclear electronics. It is written for newcomers and those, who are not very familiar with this technique. Some additional information is given on typical failures in nuclear measurement systems. (orig.) [de

  13. Power electronics

    Indian Academy of Sciences (India)

    Kishore Chatterjee

    Power electronics plays an important role in the processing, conditioning and utilization of electric power. From ubiquitous ... An induction motor drive based on a modular multilevel converter (MMC) is presented ... dynamic voltage restorer and the control of an induction motor drive having an active front end converter.

  14. Electronic Money.

    Science.gov (United States)

    Schilling, Tim

    Thirty years ago a cashless society was predicted for the near future; paper currency and checks would be an antiquated symbol of the past. Consumers would embrace a new alternative for making payments: electronic money. But currency is still used for 87% of payments, mainly for "nickel and dime" purchases. And checks are the payment…

  15. Electronics department

    International Nuclear Information System (INIS)

    1979-01-01

    This report summarizes the activities in 1978 of some of the groups within the Electronics Department. The work covered includes plant protection and operator studies, reliability techniques, application of nuclear techniques to mineral exploration, applied laser physics, computing and, lastly, research instrumentation. (author)

  16. Electronic Commerce

    Indian Academy of Sciences (India)

    nance, Vol.6, No.2, 6-13, 2001. SERIES I ARTICLE. Electronic Commerce. 5. Cash Transactions. V Rajaraman. In this article we will discuss payment by cash for e-com- merce transactions and micro payments for services re- ceived via the internet. Introduction. In the previous part, we discussed payment by credit cards and.

  17. Cryogenic electronics

    Energy Technology Data Exchange (ETDEWEB)

    Fourches, N.; Abbon, P.; Delagnes, E.; Le Meur, L.P.

    1995-04-01

    This study presents the cryogenic electronics, which is used in high energy physics with appropriate device. It discuss their ability to hardening against ionization radiation and neutrons. Some partial results on the operation of microelectronics devices at cryogenic temperature are given. (TEC). 33 refs., 13 figs.

  18. Electronic Commerce

    Indian Academy of Sciences (India)

    2000-11-30

    Nov 30, 2000 ... Electronic Commerce. 2. E-Commerce System Architecture. V Rajaraman is with the. J awaharlal Nehru Centre for Advanced Scientific. Research and the Indian. Institute of Science,. Bangalore. Several generations of scientists and engineers in India have learnt computer science using his lucidly.

  19. Electronic Commerce

    Indian Academy of Sciences (India)

    In the first part of this series we stated that in business to business e-commerce, electronic documents are exchanged be- tween business partners by using either a private network or a public switched network. We also stated that in order to inter- pret them correctly we need a standard notation which is agreed to by both ...

  20. Electronic detectors for electron microscopy.

    Science.gov (United States)

    Faruqi, A R; McMullan, G

    2011-08-01

    Electron microscopy (EM) is an important tool for high-resolution structure determination in applications ranging from condensed matter to biology. Electronic detectors are now used in most applications in EM as they offer convenience and immediate feedback that is not possible with film or image plates. The earliest forms of electronic detector used routinely in transmission electron microscopy (TEM) were charge coupled devices (CCDs) and for many applications these remain perfectly adequate. There are however applications, such as the study of radiation-sensitive biological samples, where film is still used and improved detectors would be of great value. The emphasis in this review is therefore on detectors for use in such applications. Two of the most promising candidates for improved detection are: monolithic active pixel sensors (MAPS) and hybrid pixel detectors (of which Medipix2 was chosen for this study). From the studies described in this review, a back-thinned MAPS detector appears well suited to replace film in for the study of radiation-sensitive samples at 300 keV, while Medipix2 is suited to use at lower energies and especially in situations with very low count rates. The performance of a detector depends on the energy of electrons to be recorded, which in turn is dependent on the application it is being used for; results are described for a wide range of electron energies ranging from 40 to 300 keV. The basic properties of detectors are discussed in terms of their modulation transfer function (MTF) and detective quantum efficiency (DQE) as a function of spatial frequency.

  1. Factors Influencing the Internet Resource Users' Satisfaction: An Analytical Study on Omani Undergraduate Learners

    Science.gov (United States)

    Sriram, B.

    2016-01-01

    The internet resources are one of the important knowledge sharing tools in day-to-day business processes. These internet resources have greater impact on education field too. The learning processes have become comparatively easy due to these electronic resources. The online resources help the students to acquire the required knowledge through…

  2. What's the Use? The Value of E-Resource Usage Statistics.

    Science.gov (United States)

    Peters, Thomas A.

    2002-01-01

    Discusses librarians' use of electronic resource (e-resource) statistics. Topics include the historical context of computerized monitoring of human-computer interaction; where e-resource usage statistics originate; organizational efforts to gain value from e-resource usage statistics; practical aspects, including funding decisions, measuring…

  3. Tools, Techniques, and Training: Results of an E-Resources Troubleshooting Survey

    Science.gov (United States)

    Rathmel, Angela; Mobley, Liisa; Pennington, Buddy; Chandler, Adam

    2015-01-01

    A primary role of any e-resources librarian or staff is troubleshooting electronic resources (e-resources). While much progress has been made in many areas of e-resources management (ERM) to understand the ERM lifecycle and to manage workflows, troubleshooting access remains a challenge. This collaborative study is the result of the well-received…

  4. Self managing experiment resources

    International Nuclear Information System (INIS)

    Stagni, F; Ubeda, M; Charpentier, P; Tsaregorodtsev, A; Romanovskiy, V; Roiser, S; Graciani, R

    2014-01-01

    Within this paper we present an autonomic Computing resources management system, used by LHCb for assessing the status of their Grid resources. Virtual Organizations Grids include heterogeneous resources. For example, LHC experiments very often use resources not provided by WLCG, and Cloud Computing resources will soon provide a non-negligible fraction of their computing power. The lack of standards and procedures across experiments and sites generated the appearance of multiple information systems, monitoring tools, ticket portals, etc... which nowadays coexist and represent a very precious source of information for running HEP experiments Computing systems as well as sites. These two facts lead to many particular solutions for a general problem: managing the experiment resources. In this paper we present how LHCb, via the DIRAC interware, addressed such issues. With a renewed Central Information Schema hosting all resources metadata and a Status System (Resource Status System) delivering real time information, the system controls the resources topology, independently of the resource types. The Resource Status System applies data mining techniques against all possible information sources available and assesses the status changes, that are then propagated to the topology description. Obviously, giving full control to such an automated system is not risk-free. Therefore, in order to minimise the probability of misbehavior, a battery of tests has been developed in order to certify the correctness of its assessments. We will demonstrate the performance and efficiency of such a system in terms of cost reduction and reliability.

  5. Resource Structuring and Ambidexterity

    DEFF Research Database (Denmark)

    Ma, Yucheng; Li, Peter Ping

    Focusing on how resource structuring mechanisms and managerial ties influence organizational ambidexterity of new ventures in emerging economy, this study explores the effects of resource structuring mechanisms (i.e., resource acquiring and resource accumulating) on organizational ambidexterity....... It further examines the moderating effects of managerial ties, (i.e., ties with other firms and ties with the government) on the above relationships. Survey data from China¡¯s 202 new ventures demonstrates that the resource acquiring has an inverted U-shaped effect whereas the resource accumulating has a U......-shaped effect on organizational ambidexterity in new ventures. Further, because of the traditional culture and economic transition characteristics, new ventures actively leverage managerial ties as key social relations to obtain special resources or nurture business transactions. We propose that ties with other...

  6. Industry Resources Directory.

    Science.gov (United States)

    Music Educators Journal, 1983

    1983-01-01

    Lists 40 manufacturers of software, computers, synthesizers, and other electronic devices, and compositions for computer, tape, and electronic instruments. Names, addresses, and type of product manufactured are included. (KC)

  7. Molecular Electronics

    DEFF Research Database (Denmark)

    Jennum, Karsten Stein

    This thesis includes the synthesis and characterisation of organic compounds designed for molecular electronics. The synthesised organic molecules are mainly based on two motifs, the obigo(phenyleneethynylenes) (OPE)s and tetrathiafulvalene (TTF) as shown below. These two scaffolds (OPE and TTF......) are chemically merged together to form cruciform-like structures that are an essential part of the thesis. The cruciform molecules were subjected to molecular conductance measurements to explore their capability towards single-crystal field-effect transistors (Part 1), molecular wires, and single electron...... transistors (Part 2). The synthetic protocols rely on stepwise Sonogashira coupling reactions. Conductivity studies on various OPE-based molecular wires reveal that mere OPE compounds have a higher electrical resistance compared to the cruciform based wires (up to 9 times higher). The most spectacular result...

  8. Automotive electronics

    Energy Technology Data Exchange (ETDEWEB)

    Basshuysen, R. van [ed.; Baun, R. [comp.

    2000-10-01

    Electronic equipment is indispensable in modern motor cars for active and passive safety, exhaust and consumption monitoring or comfort. Electric and electronic systems today account for nearly 20 percent of the production cost of a normal passenger car, with an upward trend. Infotainment equipment is a growing market, which gets center stage in this issue. Further subjects discussed are current electronic and mechatronic applications as well as new developments in data transmission, development tools and constructional elements. [German] Ohne Elektronik sind moderne Automobile nicht mehr vorstellbar. Ob aktive oder passive Sicherheit, Abgas, Verbrauch oder Komfort - der Fortschritt im Autombil ist eng verknuepft mit der Einfuehrung neuer elektronischer Systeme und Komponenten. Obwohl meist nicht sehr auffaellig in einer Black-box verpackt, liegen die anteiligen Herstellungskosten fuer die Elektrik und Elektronik bei einem Mittelklassefahrzeug schon bei knapp 20 Prozent. Tendenz: Weiter steigend. Waehrend die Segnungen von ABS, ESP oder Motormanagement fuer den Kunden unsichtbar bleiben, tritt die Elektronik mit den Infotainment-Systemen ins Rampenlicht. Hochwertige Audio-Anlagen im Doppel-DIN-Format und grosse Farbbildschirme sitzen an prominenter Stelle im Armaturenbrett. Elektronische Systeme werden damit fuer den Kunden sichtbar, greifbar und erlebbar. Doch je mehr Funktionen integriert werden, desto wichtiger wird eine einfache Bedienung, die den Fahrer moeglichst wenig vom Verkehrsgeschehen ablenkt. Das ist leider keine Selbstverstaendlichkeit: Eine klare, einfache Bedienung wurde in der Vergangenheit schon bei so manchem simplen Cassetten-Radio schmerzlich vermisst. Infotainment im Automobil ist ein Wachstumsmarkt - und das Schwerpunkt-Thema der vorliegenden zweiten Ausgabe von 'Automotive Electronics'. Darueber hinaus beschaeftigt sich auch diese Ausgabe mit aktuellen Elektronik- und Mechatronik-Anwendungen und berichtet ueber neue Entwicklungen

  9. Electronic Aggression

    Centers for Disease Control (CDC) Podcasts

    2007-11-20

    Aggression is no longer limited to the school yard. New forms of electronic media, such as blogs, instant messaging, chat rooms, email, text messaging, and the internet are providing new arenas for youth violence to occur.  Created: 11/20/2007 by National Center for Injury Prevention and Control, Division of Violence Prevention.   Date Released: 11/28/2007.

  10. ELECTRON GUN

    Science.gov (United States)

    Christofilos, N.C.; Ehlers, K.W.

    1960-04-01

    A pulsed electron gun capable of delivering pulses at voltages of the order of 1 mv and currents of the order of 100 amperes is described. The principal novelty resides in a transformer construction which is disposed in the same vacuum housing as the electron source and accelerating electrode structure of the gun to supply the accelerating potential thereto. The transformer is provided by a plurality of magnetic cores disposed in circumferentially spaced relation and having a plurality of primary windings each inductively coupled to a different one of the cores, and a helical secondary winding which is disposed coaxially of the cores and passes therethrough in circumferential succession. Additional novelty resides in the disposition of the electron source cathode filament input leads interiorly of the transformer secondary winding which is hollow, as well as in the employment of a half-wave filament supply which is synchronously operated with the transformer supply such that the transformer is pulsed during the zero current portions of the half-wave cycle.

  11. Benign prostate hyperplasia (BPH) - resources

    Science.gov (United States)

    Resources - benign prostatic hyperplasia (BPH); Prostate enlargement resources; BPH resources ... The following organizations provide information on benign prostatic hyperplasia ( prostate enlargement ... Urology Care Foundation -- www. ...

  12. Emotional Intelligence Research within Human Resource Development Scholarship

    Science.gov (United States)

    Farnia, Forouzan; Nafukho, Fredrick Muyia

    2016-01-01

    Purpose: The purpose of this study is to review and synthesize pertinent emotional intelligence (EI) research within the human resource development (HRD) scholarship. Design/methodology/approach: An integrative review of literature was conducted and multiple electronic databases were searched to find the relevant resources. Using the content…

  13. Human resource management

    OpenAIRE

    Šrolová, Tereza

    2012-01-01

    Human resource management is a deliberate approach to managing people who are employed in a particular organization and under the management leadership contribute to achieving organizational goals with their performance. Managing people is associated with personal strategy and policy,which have an important role in working with human resources. This issue is concerned in thesis. In the context of human resource management also deals with the culture of the organization and its influence on pe...

  14. 2005 resource options report

    International Nuclear Information System (INIS)

    Morris, T.

    2005-01-01

    This resource options report (ROR) fulfils regulatory requirements in British Columbia's two-year resource planning process. It identifies a wide range of resources and technologies that could be used to meet BC Hydro's future electricity demand. As such, it facilitates a transparent public review of resource options which include both supply-side and demand-side options. The resource options that will be used in the 2005 integrated electricity plan (IEP) were characterized. This ROR also documents where there is a general agreement or disagreement on the resource type characterization, based on the First Nations and Stakeholder engagement. BC Hydro used current information to provide realistic ranges on volume and cost to characterize environmental and social attributes. The BC Hydro system was modelled to assess the benefit and cost of various resource options. The information resulting from this ROR and IEP will help in making decisions on how to structure competitive acquisition calls and to determine the level of transmission services needed to advance certain BC Hydro projects. The IEP forecasts the nature and quantity of domestic resources required over the next 20 years. A strategic direction on how those needs will be met has been created to guide the management of BC Hydro's energy resources. Supply-side options include near-commercial technologies such as energy storage, ocean waves, tidal, fuel cells and integrated coal gasification combined cycle technology. Supply-side options also include natural gas, coal, biomass, geothermal, wind, and hydro. 120 refs., 39 tabs., 21 figs., 6 appendices

  15. World energy resources

    Directory of Open Access Journals (Sweden)

    Clerici A.

    2015-01-01

    Full Text Available As energy is the main “fuel” for social and economic development and since energy-related activities have significant environmental impacts, it is important for decision-makers to have access to reliable and accurate data in an user-friendly format. The World Energy Council (WEC has for decades been a pioneer in the field of energy resources and every three years publishes its flagship report Survey of Energy Resources. A commented analysis in the light of latest data summarized in such a report, World Energy Resources (WER 2013, is presented together with the evolution of the world energy resources over the last twenty years.

  16. World energy resources

    Science.gov (United States)

    Clerici, A.; Alimonti, G.

    2015-08-01

    As energy is the main "fuel" for social and economic development and since energy-related activities have significant environmental impacts, it is important for decision-makers to have access to reliable and accurate data in an user-friendly format. The World Energy Council (WEC) has for decades been a pioneer in the field of energy resources and every three years publishes its flagship report Survey of Energy Resources. A commented analysis in the light of latest data summarized in such a report, World Energy Resources (WER) 2013, is presented together with the evolution of the world energy resources over the last twenty years.

  17. Sharing network resources

    CERN Document Server

    Parekh, Abhay

    2014-01-01

    Resource Allocation lies at the heart of network control. In the early days of the Internet the scarcest resource was bandwidth, but as the network has evolved to become an essential utility in the lives of billions, the nature of the resource allocation problem has changed. This book attempts to describe the facets of resource allocation that are most relevant to modern networks. It is targeted at graduate students and researchers who have an introductory background in networking and who desire to internalize core concepts before designing new protocols and applications. We start from the fun

  18. Detectors - Electronics

    International Nuclear Information System (INIS)

    Bregeault, J.; Gabriel, J.L.; Hierle, G.; Lebotlan, P.; Leconte, A.; Lelandais, J.; Mosrin, P.; Munsch, P.; Saur, H.; Tillier, J.

    1998-01-01

    The reports presents the main results obtained in the fields of radiation detectors and associated electronics. In the domain of X-ray gas detectors for the keV range efforts were undertaken to rise the detector efficiency. Multiple gap parallel plate chambers of different types as well as different types of X → e - converters were tested to improve the efficiency (values of 2.4% at 60 KeV were reached). In the field of scintillators a study of new crystals has been carried out (among which Lutetium orthosilicate). CdTe diode strips for obtaining X-ray imaging were studied. The complete study of a linear array of 8 CdTe pixels has been performed and certified. The results are encouraging and point to this method as a satisfying solution. Also, a large dimension programmable chamber was used to study the influence of temperature on the inorganic scintillators in an interval from -40 deg. C to +150 deg. C. Temperature effects on other detectors and electronic circuits were also investigated. In the report mentioned is also the work carried out for the realization of the DEMON neutron multidetector. For neutron halo experiments different large area Si detectors associated with solid and gas position detectors were realized. In the frame of a contract with COGEMA a systematic study of Li doped glasses was undertaken aiming at replacing with a neutron probe the 3 He counters presently utilized in pollution monitoring. An industrial prototype has been realised. Other studies were related to integrated analog chains, materials for Cherenkov detectors, scintillation probes for experiments on fundamental processes, gas position sensitive detectors, etc. In the field of associated electronics there are mentioned the works related to the multidetector INDRA, data acquisition, software gamma spectrometry, automatic gas pressure regulation in detectors, etc

  19. Electronic materials

    CERN Document Server

    Kwok, H L

    2010-01-01

    The electronic properties of solids have become of increasing importance in the age of information technology. The study of solids and materials, while having originated from the disciplines of physics and chemistry, has evolved independently over the past few decades. The classical treatment of solid-state physics, which emphasized classifications, theories and fundamental physical principles, is no longer able to bridge the gap between materials advances and applications. In particular, the more recent developments in device physics and technology have not necessarily been driven by new conc

  20. Nuclear electronics

    International Nuclear Information System (INIS)

    Lucero B, E.

    1989-01-01

    The rapid technical development of Colombia over the past years, resulted among others, a considerable increase in the number of measuring instrumentation and testing laboratories, scientific research and metrology centers, in industry, agriculture, public health, education on the nuclear field, etc. IAN is a well organized institution with qualified management, trained staff and reasonably equipped laboratories to carry out tasks as: Metrology, standardization, quality control and maintenance and repair of nuclear instruments. The government of Colombia has adopted a policy to establish and operate through the country maintenance and repair facilities for nuclear instrumentation. This policy is reflected in the organization of electronic laboratories in Bogota-IAN

  1. Basic electronics

    CERN Document Server

    Tayal, DC

    2010-01-01

    The second edition of this book incorporates the comments and suggestions of my friends and students who have critically studied the first edition. In this edition the changes and additions have been made and subject matter has been rearranged at some places. The purpose of this text is to provide a comprehensive and up-to-date study of the principles of operation of solid state devices, their basic circuits and application of these circuits to various electronic systems, so that it can serve as a standard text not only for universities and colleges but also for technical institutes. This book

  2. Reliability criteria selection for integrated resource planning

    International Nuclear Information System (INIS)

    Ruiu, D.; Ye, C.; Billinton, R.; Lakhanpal, D.

    1993-01-01

    A study was conducted on the selection of a generating system reliability criterion that ensures a reasonable continuity of supply while minimizing the total costs to utility customers. The study was conducted using the Institute for Electronic and Electrical Engineers (IEEE) reliability test system as the study system. The study inputs and results for conditions and load forecast data, new supply resources data, demand-side management resource data, resource planning criterion, criterion value selection, supply side development, integrated resource development, and best criterion values, are tabulated and discussed. Preliminary conclusions are drawn as follows. In the case of integrated resource planning, the selection of the best value for a given type of reliability criterion can be done using methods similar to those used for supply side planning. The reliability criteria values previously used for supply side planning may not be economically justified when integrated resource planning is used. Utilities may have to revise and adopt new, and perhaps lower supply reliability criteria for integrated resource planning. More complex reliability criteria, such as energy related indices, which take into account the magnitude, frequency and duration of the expected interruptions are better adapted than the simpler capacity-based reliability criteria such as loss of load expectation. 7 refs., 5 figs., 10 tabs

  3. E-waste management and resources recovery in France.

    Science.gov (United States)

    Vadoudi, Kiyan; Kim, Junbeum; Laratte, Bertrand; Lee, Seung-Jin; Troussier, Nadège

    2015-10-01

    There are various issues of concern regarding electronic waste management, such as the toxicity of hazardous materials and the collection, recycling and recovery of useful resources. To understand the fate of electronic waste after collection and recycling, a products and materials flow analysis should be performed. This is a critical need, as material resources are becoming increasingly scarce and recycling may be able to provide secondary sources for new materials in the future. In this study, we investigate electronic waste systems, specifically the resource recovery or recycling aspects, as well as mapping electronic waste flows based on collection data in France. Approximately 1,588,453 t of new electrical and electronic equipment were sold in the French market in 2010. Of this amount, 430,000 t of electronic waste were collected, with the remaining 1,128,444 t remaining in stock. Furthermore, the total recycled amounts were 354,106 t and 11,396 t, respectively. The main electronic waste materials were ferrous metals (37%), plastic (22%), aluminium (12%), copper (11%) and glass (7%). This study will contribute to developing sustainable electronic waste and resource recycling systems in France. © The Author(s) 2015.

  4. Skills and training needs for use of electronic information resources ...

    African Journals Online (AJOL)

    The article therefore recommends the development of ICT infrastructures, that librarians and teaching staff become role models and mentors to students in using EIRs, and that teaching staff adopt an active learning and student-centred approach in their teaching as well as strengthening IL programmes as intervention ...

  5. use of electronic resources by graduate students of the department ...

    African Journals Online (AJOL)

    University libraries collect a variety of materials for preservation and use of the library patrons. ... Faculty of Education, University of Uyo, Uyo. Olu Olat Lawal, Department of Educational, Technology and Library/Information Science, Faculty of ..... Adolescent Research 5: 485–99. Dalgleish, A., and Hall, R., 2000. Use and.

  6. Electronic learning and open educational resources in the health ...

    African Journals Online (AJOL)

    All of the UG students viewed the TAH programme; 82% (130) of the KNUST students viewed the PCR animations. All students who viewed the programmes at both institutions indicated that the e-learning pro-grammes were “more effective” in comparison to other methods of learning. Conclusion: Computer ownership or ...

  7. use of electronic resources by graduate students of the department

    African Journals Online (AJOL)

    influences technology use: Internet access competence, which the literature has revealed that internet, has become the most extensively used information source that empowers the average person to get in roaming with the latest information. The internet has emerged as a powerful educational tool. With the increasing.

  8. Skills and training needs for use of Electronic Information Resources ...

    African Journals Online (AJOL)

    manda

    well as strengthening IL programmes as intervention measures for improving students' skills in using EIRs. ... the Internet is a vibrant tool that has created extraordinary chances for research, teaching, learning and publishing activities. This article reports on the knowledge and skills relating to student's use of EIRs in four.

  9. Modern ICT Tools: Online Electronic Resources Sharing Using Web ...

    African Journals Online (AJOL)

    Libraries can also operate information commons and derive the befits that go with their operations; and use web 2.0 tools like Facebook, RSS feeds, wikis, blogs, podcasts, flickr, tagging, Myspace, etc for web visibility, enhanced information generation, processing, dissemination, access and utilization, as well as facilitating ...

  10. Physical resources and infrastructure

    NARCIS (Netherlands)

    Foeken, D.W.J.; Hoorweg, J.; Foeken, D.W.J.; Obudho, R.A.

    2000-01-01

    This chapter describes the main physical characteristics as well as the main physical and social infrastructure features of Kenya's coastal region. Physical resources include relief, soils, rainfall, agro-ecological zones and natural resources. Aspects of the physical infrastructure discussed are

  11. Resources in Technology 7.

    Science.gov (United States)

    International Technology Education Association, Reston, VA.

    This volume of Resources in Technology contains the following eight instructional modules: (1) "Processing Technology"; (2) "Water--A Magic Resource"; (3) "Hazardous Waste Disposal--The NIMBY (Not in My Backyard) Syndrome"; (4) "Processing Fibers and Fabrics"; (5) "Robotics--An Emerging…

  12. Australian Government Information Resources

    OpenAIRE

    Chapman, Bert

    2017-01-01

    Provides an overview of Australian Government information resources. Features content from Australian Government agency websites such as the Department of Environment and Energy, Department of Defence, Australian National Maritime Museum, ANZAC Memorial in Sydney, Department of Immigration & Border Protection, Australian Bureau of Statistics, Australian Dept. of Agriculture and Water Resources, Australian Parliament, Australian Treasury, Australian Transport Safety Board, and Australian Parl...

  13. Resources for blueberry growers

    Science.gov (United States)

    Local extension agents and USDA-ARS research scientists are excellent resources for various aspects of blueberry production, but several print and web-based resources are also available to help commercial blueberry growers. Growers are encouraged to consider the source for all web-based information....

  14. Iowa's forest resources, 1974.

    Science.gov (United States)

    John S. Jr. Spencer; Pamela J. Jakes

    1980-01-01

    The second inventory of Iowa's forest resources shows big declines in commercial forest area and in growing-stock and sawtimber volumes between 1954 and 1974. Presented are text and statistics on forest area and timber volume, growth, mortality, ownership, stocking, future timber supply, timber use, forest management opportunities, and nontimber resources.

  15. Open Educational Resources

    Science.gov (United States)

    McShane, Michael Q.

    2017-01-01

    While digital products have made significant inroads into the educational resources market, textbooks and other print materials still command about 60 percent of sales. But whether print or digital, all of these commercial offerings now face threats from a burgeoning effort to promote "open" resources for education--that is, materials…

  16. Renewable material resource potential

    NARCIS (Netherlands)

    van Weenen, H.; Wever, R.; Quist, J.; Tukker, A.; Woudstra, J.; Boons, F.A.A.; Beute, N.

    2010-01-01

    Renewable material resources, consist of complex systems and parts. Their sub-systems and sub-sub-systems, have unique, specific, general and common properties. The character of the use that is made of these resources, depends on the availability of knowledge, experience, methods, tools, machines

  17. Merge of terminological resources

    DEFF Research Database (Denmark)

    Henriksen, Lina; Braasch, Anna

    2012-01-01

    In our globalized world, the amount of cross-national communication increases rapidly, which also calls for easy access to multi-lingual high quality terminological resources. Sharing of terminology resources is currently becoming common practice, and efficient strategies for integration – or mer...

  18. World Music Resources

    Science.gov (United States)

    Beegle, Amy C.

    2012-01-01

    Access to world music resources such as videos and sound recordings have increased with the advent of YouTube and the efforts of music educators working closely with ethnomusicologists to provide more detailed visual and audio information about various musical practices. This column discusses some world music resources available for music…

  19. Resources and Transaction Costs

    DEFF Research Database (Denmark)

    Foss, Kirsten; Foss, Nicolai Juul

    2004-01-01

    resources depends on the propertyrights that she holds to those resources and on the transaction costs of exchanging,defining and protecting the relevant property rights. While transaction costs aremajor sources of value dissipation, value may be created by reducing suchdissipation. Implications for the RBV...

  20. Uranium market and resources

    International Nuclear Information System (INIS)

    Capus, G.; Arnold, T.

    2005-01-01

    Under the combined effect of various factors, such as interrogations related to facing the climatic changes, the increasing prices of oil versus announced decrease of its resources, the major geopolitical evolution and the remarkable development of Asia, we live nowadays a revival of nuclear power in the very front of stage. In tis context, the following question is posed: could the nuclear fission be a sustainable source of energy when taking into consideration the availability of uranium resources? The article aims at pinpointing the knowledge we have about the world uranium resources, their limits of uncertainty and the relation between knowledge resources and market evolution. To conclude, some susceptible tracks are proposed to improve the using process of uranium resources particularly in softening the impact of high prices

  1. Supplier Resource Mobilization

    DEFF Research Database (Denmark)

    Ellegaard, Chris; Kragh, Hanne; Andersen, Poul Houman

    theoretical perspectives. This review, synthesis, and resultant discussion allow us to propose that future research should look closer at the resource activation process on the supplier side, the role of the buyer-supplier relationship in resource mobilization, and the approach of the buying company......Companies that wish to draw benefit from supplier resources beyond standard market offerings must actively make an effort to mobilize these resources. This task has been a major topic of interest in the management literature, but the continued reported problems of companies attempting to influence...... suppliers suggests that the knowledge of this challenge is yet inadequate. The purpose of this paper is therefore to establish a research agenda on supplier resource mobilization that can improve this knowledge. To fulfill the purpose we review the management literature and identify the most prevalent...

  2. ECONOMICS OF HUMAN RESOURCES

    Directory of Open Access Journals (Sweden)

    IOANA - JULIETA JOSAN

    2011-04-01

    Full Text Available The purpose of this paper is to analyze human resources in terms of quantitative and qualitative side with special focus on the human capital accumulation influence. The paper examines the human resources trough human capital accumulation in terms of modern theory of human resources, educational capital, health, unemployment and migration. The findings presented in this work are based on theoretical economy publications and data collected from research materials. Sources of information include: documents from organizations - the EUROSTAT, INSSE - studies from publications, books, periodicals, and the Internet. The paper describes and analyzes human resources characteristics, human resource capacities, social and economic benefits of human capital accumulation based on economy, and the government plans and policies on health, education and labor market.

  3. Practical electronics handbook

    CERN Document Server

    Sinclair, Ian R

    2013-01-01

    Practical Electronics Handbook, Third Edition provides the frequently used and highly applicable principles of electronics and electronic circuits.The book contains relevant information in electronics. The topics discussed in the text include passive and active discrete components; linear and digital I.C.s; microprocessors and microprocessor systems; digital-analogue conversions; computer aids in electronics design; and electronic hardware components.Electronic circuit constructors, service engineers, electronic design engineers, and anyone with an interest in electronics will find the book ve

  4. Skylab electronic technological advancements

    Science.gov (United States)

    Hornback, G. L.

    1974-01-01

    The present work describes three electronic devices designed for use in the Skylab airlock module: the teleprinter system, the quartz crystal microbalance contamination monitor (QCM), and the speaker. Design considerations, operation, characteristics, and system development are described for these systems, with accompanying diagrams, graphs, and photographs. The teleprinter is a thermal dot printer used to produce hard copy messages by electrically heating print elements in contact with heat-sensitive paper. The QCM was designed to estimate contamination buildup on optical surfaces of the earth resources experiment package. A vibrating quartz crystal is used as a microbalance relating deposited mass to shifts in the crystal's resonant frequency. Audio devices provide communication between crew members and between crew and STDN, and also provide audible alarms, via the caution and warning system, of out-of-limit-conditions.

  5. The utilization of poisons information resources in Australasia.

    Science.gov (United States)

    Fountain, J S; Reith, D M; Holt, A

    2014-02-01

    To identify poisons information resources most commonly utilized by Australasian Emergency Department staff, and examine attitudes regarding the benefits and user experience of the electronic products used. A survey tool was mailed to six Emergency Departments each in New Zealand and Australia to be answered by medical and nursing staff. Eighty six (71.7%) responses were received from the 120 survey forms sent: 70 (81%) responders were medical staff, the remainder nursing. Electronic resources were the most accessed poisons information resource in New Zealand; Australians preferring discussion with a colleague; Poisons Information Centers were the least utilized resource in both countries. With regard to electronic resources, further differences were recognized between countries in: ease of access, ease of use, quality of information and quantity of information, with New Zealand better in all four themes. New Zealand ED staff favored electronic poisons information resources while Australians preferred discussion with a colleague. That Poisons Information Centers were the least utilized resource was surprising. Copyright © 2013 Elsevier Ireland Ltd. All rights reserved.

  6. EDUCATIONAL NETWORK RESOURCES IN JOURNALISM AND PUBLISHING: FEATURES OF THE SITES' CONTENT AND DESIGN

    Directory of Open Access Journals (Sweden)

    Hanna A. Zenzina

    2012-12-01

    Full Text Available The article deals with the concept of electronic educational resource, its importance for the orientation of students in cyberspace, the basic requirements for the design and content of educational resources eligibility criteria standards. Filed benefits of having their own educational resource for high school. Singled out the importance of the interaction of educational resources with social networks. Detected differences and similarities of design and content of educational resources of Kyiv Universities in journalism and publishing.

  7. Library Technology Centers and Community Building: Yale University Library Electronic Text Center.

    Science.gov (United States)

    Goldenberg-Hart, Diane Y.

    1998-01-01

    Discusses various communities that have contributed to the development of the Yale University Library Electronic Text Center (ETC) and describes the evolution of the ETC from a center for the support of electronic texts in the humanities to an electronic resource center providing support in the creation of World Wide Web resources. (LRW)

  8. Interpersonal and economic resources.

    Science.gov (United States)

    Foa, U G

    1971-01-29

    High population density and increased institutional specialization, which are relatively novel features of human society. have provided conditions for a more efficient exchange of universalistic resources, while decreasing the opportunity for exchanging particularistic ones. The parallel with physical environment is striking: in both cases technology has created new problems in the process of solving old ones. Whether it is natural resources or interpersonal resources, physical ecology or social ecology, recognizing and defining the new problem is the first step toward its solution. The importance of particularistic resources in solving problems of modern society has scarcely been recognized. Welfare institutions, for example, often require clients to lose status for the money they receive. This form of exchange deprives the client of a resource which is already scarce for him, thus further reducing his chances of autonomous performance as a resource exchanger in society. By ignoring the significance of particularistic resources for social functioning, we tend to see the solution of social problems exclusively in terms of a better distribution of economic resources. Improvement of education, for instance, is considered almost equivalent to allocating more money for schools. Truly money is one of the neighbors of information in the order, but the other one is status. Evidence to suggest that higher status improves educational achievement has, indeed, been repeatedly reported (26). The very mention of particularistic resources in social planning causes uneasiness and bafflement. The economist Levitan (27), for example, in reviewing the activities of VISTA (a program of the Office of Economic Opportunity), wonders how to evaluate goals such as dedication, involvement, and good feeling. The reluctance to include particularistic resources in social engineering will hopefully decrease as we improve techniques for their observation and measurement and as we begin to

  9. Adaptive radar resource management

    CERN Document Server

    Moo, Peter

    2015-01-01

    Radar Resource Management (RRM) is vital for optimizing the performance of modern phased array radars, which are the primary sensor for aircraft, ships, and land platforms. Adaptive Radar Resource Management gives an introduction to radar resource management (RRM), presenting a clear overview of different approaches and techniques, making it very suitable for radar practitioners and researchers in industry and universities. Coverage includes: RRM's role in optimizing the performance of modern phased array radars The advantages of adaptivity in implementing RRMThe role that modelling and

  10. Global resource sharing

    CERN Document Server

    Frederiksen, Linda; Nance, Heidi

    2011-01-01

    Written from a global perspective, this book reviews sharing of library resources on a global scale. With expanded discovery tools and massive digitization projects, the rich and extensive holdings of the world's libraries are more visible now than at any time in the past. Advanced communication and transmission technologies, along with improved international standards, present a means for the sharing of library resources around the globe. Despite these significant improvements, a number of challenges remain. Global Resource Sharing provides librarians and library managers with a comprehensive

  11. Sustainable Management of Electronics

    Science.gov (United States)

    To provide information on EPAs strategy for electronics stewardship, certified electronics recyclers and the Challenge; as well as where to donate unwanted electronics, how to calculate benefits, and what's going on with electronics mgmt in their states.

  12. National Aquatic Resource Surveys

    Science.gov (United States)

    EPA reports information on the condition of our nation's waters using probabilistic surveys. The National Aquatic Resource Surveys assess the status of and changes in water quality of the nation's coastal waters, lakes, rivers and streams, and wetlands.

  13. Limited Income and Resources

    Data.gov (United States)

    U.S. Department of Health & Human Services — Information for those with limited income and resources (those who may qualify for or already have the Low Income Subsidy to lower their prescription drug coverage...

  14. Modern water resources engineering

    CERN Document Server

    Yang, Chih

    2014-01-01

    The Handbook of Environmental Engineering series is an incredible collection of methodologies that study the effects of pollution and waste in their three basic forms: gas, solid, and liquid. This exciting new addition to the series, Volume 15: Modern Water Resources Engineering , has been designed to serve as a water resources engineering reference book as well as a supplemental textbook. We hope and expect it will prove of equal high value to advanced undergraduate and graduate students, to designers of water resources systems, and to scientists and researchers. A critical volume in the Handbook of Environmental Engineering series, chapters employ methods of practical design and calculation illustrated by numerical examples, include pertinent cost data whenever possible, and explore in great detail the fundamental principles of the field. Volume 15: Modern Water Resources Engineering, provides information on some of the most innovative and ground-breaking advances in the field today from a panel of esteemed...

  15. Uranium resources and requirements

    International Nuclear Information System (INIS)

    Silver, J.M.; Wright, W.J.

    1976-01-01

    Australia has about 19% of the reasonably assured resources of uranium in the Western World recoverable at costs of less than $A20/kgU, or about 9% of the resources (reasonably assured and estimated additional) recoverable at costs of less than $A30/kgU. Australia's potential for further discoveries of uranium is good. Nevertheless, if Australia did not export any of these resources it would probably have only a marginal effect on the development of nuclear power. Other resources would be exploited earlier and prices would rise, but not sufficiently to make the costs of nuclear power unattractive. On the other hand, this policy could deny to Australia real benefits in foreign earnings, employment and national development. (author)

  16. Resources and Operations Section

    International Nuclear Information System (INIS)

    Burgess, R.L.

    1977-01-01

    Progress is reported on the following: environmental data resources group; EDFB information center; national inventory of biological monitoring; ecological sciences information center; long-range computer planning; educational activities; quality assurance; and industrial and radiation safety

  17. BEI Resource Repository

    Data.gov (United States)

    U.S. Department of Health & Human Services — BEI Resources provides reagents, tools and information for studying Category A, B, and C priority pathogens, emerging infectious disease agents, non-pathogenic...

  18. Green Power Partner Resources

    Science.gov (United States)

    EPA Green Power Partners can access tools and resources to help promote their green power commitments. Partners use these tools to communicate the benefits of their green power use to their customers, stakeholders, and the general public.

  19. Resources for Industry

    Science.gov (United States)

    NCI develops and commercializes novel technologies and products to prevent, diagnose, and treat cancer through its Small Business Innovation Research and Small Business Technology Transfer programs. Find links to these programs and resources.

  20. Uranium resources and requirements

    International Nuclear Information System (INIS)

    Silver, J.M.; Wright, W.J.

    1975-08-01

    Australia has about 19% of the reasonably assured resources of uranium in the Western World recoverable at costs of less than $A20 per kilogram, or about 9% of the resources (reasonably assured and estimated additional) recoverable at costs of less than $A30 per kilogram. Australia's potential for further discoveries of uranium is good. Nevertheless, if Australia did not export any of these resources it would probably have only a marginal effect on the development of nuclear power; other resources would be exploited earlier and prices would rise, but not sufficiently to make the costs of nuclear power unattractive. On the other hand, this policy could deny to Australia real benefits in foreign currency earnings, employment and national development. (author)