148 research outputs found

    Code and data: Global assessment of marine plastic risk exposure for oceanic birds (Submission).

    No full text
    Bethany L. Clark, Elizabeth J. Pearmain, Ana P. B. Carneiro, Win Cowger, & Maria P. Dias. (2023). Code and data: Global assessment of marine plastic risk exposure for oceanic birds (Submission)

    Foundational Principles of South African Medical Law [Pieter Carstens & Debbie Pearmain, 2007]

    No full text
    A critical review of the book, Foundational Principles of South African Medical Law (2007) LexisNexis, by authors Pieter Carstens and Debbie Pearmain.</p

    Foundational Principles of South African Medical Law [Pieter Carstens & Debbie Pearmain, 2007]

    No full text
    A critical review of the book, Foundational Principles of South African Medical Law (2007) LexisNexis, by authors Pieter Carstens and Debbie Pearmain.</p

    sj-docx-1-msc-10.1177_09691413221090892 - Supplemental material for COVID-19 disruption to cervical cancer screening in England

    No full text
    Supplemental material, sj-docx-1-msc-10.1177_09691413221090892 for COVID-19 disruption to cervical cancer screening in England by Alejandra Castanon, Matejka Rebolj, Francesca Pesola, Philippa Pearmain and Ruth Stubbs in Journal of Medical Screening</p

    Mobile Audiovisual Terminal: System Design and Subjective Testing in DECT and UMTS networks

    No full text
    It is anticipated that there will shortly be a requirement for multimedia terminals that operate via mobile communications systems. This paper presents a functional specification for such a terminal operating at 32 kb/s in a digital European cordless telecommunications (DECT) and universal mobile telecommunications system (UMTS) radio network. A terminal has been built, based on a PC with digital signal processor (DSP) boards for audio and video coding and decoding. Speech coding is by a phonetically driven code-excited linear prediction (CELP) speech coder and video coding by a block-oriented hybrid discrete cosine transform (DCT) coder. Separate channel coding is provided for the audio and video data. The paper describes the techniques used for audio and video coding, channel coding, and synchronization. Methods of subjective testing in a DECT network and in a UMTS network are also described. These consisted of subjective tests of first impressions of the mobile audio–visual terminal (MAVT) quality, interactive tests, and the completion of an exit questionnaire. The test results showed that the quality of the audio was sufficiently good for comprehension and the video was sufficiently good for following and repeating simple mechanical tasks. However, the quality of the MAVT was not good enough for general use where high-quality audio and video was needed, especially when transmission was in a noisy radio environment

    Customized television: Standards compliant advanced digital television

    No full text
    This correspondence describes a European Union supported collaborative project called CustomTV based on the premise that future TV sets will provide all sorts of multimedia information and interactivity, as well as manage all such services according to each user’s or group of user’s preferences/profiles. We have demonstrated the potential of recent standards (MPEG-4 and MPEG-7) to implement such a scenario by building the following services: an advanced EPG, Weather Forecasting, and Stock Exchange/Flight Information

    Distribution of similarity across all non clonal or duplicate members of the collection (1777 accessions) and a series of documented siblings, parent-offspring and full-sibs.

    No full text
    1D Density plot as produced in Genstat using a bandwidth of 0.75. All similarity values were calculated using the Jaccard coefficient. Documented relationships were as identified in the NFC database and archive. Groups are as follows: (a) all 1777 accessions including siblings and parents; (b-g) similarity between documented (half- and full-) sibling offspring of ‘Cox’s Orange Pippin’, ‘Delicious’, ‘Golden Delicious’, ‘Jonathan’, ‘McIntosh’ and ‘Worcester Pearmain’; (h-m) similarity between documented offspring of ‘Cox’s Orange Pippin’, ‘Delicious’, ‘Golden Delicious’, ‘Jonathan’, ‘McIntosh’, ‘Worcester Pearmain’ and their respective parent; (n) similarity between documented full-sibling offspring from crosses between ‘Cox’s Orange Pippin’ and ‘Golden Delicious’, ‘Jonathan’ or ‘McIntosh’ and between ‘Jonathan’ and ‘Delicious’ or ‘Golden Delicious’.</p

    Quality of Service Controlled Multimedia Transport Protocol

    No full text
    PhDThis research looks at the design of an open transport protocol that supports a range of services including multimedia over low data-rate networks. Low data-rate multimedia applications require a system that provides quality of service (QoS) assurance and flexibility. One promising field is the area of content-based coding. Content-based systems use an array of protocols to select the optimum set of coding algorithms. A content-based transport protocol integrates a content-based application to a transmission network. General transport protocols form a bottleneck in low data-rate multimedia communicationbsy limiting throughpuot r by not maintainingt iming requirementsT. his work presents an original model of a transport protocol that eliminates the bottleneck by introducing a flexible yet efficient algorithm that uses an open approach to flexibility and holistic architectureto promoteQ oS.T he flexibility andt ransparenccyo mesi n the form of a fixed syntaxt hat providesa seto f transportp rotocols emanticsT. he mediaQ oSi s maintained by defining a generic descriptor. Overall, the structure of the protocol is based on a single adaptablea lgorithm that supportsa pplication independencen, etwork independencea nd quality of service. The transportp rotocol was evaluatedth rougha set of assessmentos:f f-line; off-line for a specific application; and on-line for a specific application. Application contexts used MPEG-4 test material where the on-line assessmenuts eda modified MPEG-4 pl; yer. The performanceo f the QoSc ontrolledt ransportp rotocoli s often bettert hano thers chemews hen appropriateQ oS controlledm anagemenatl gorithmsa re selectedT. his is shownf irst for an off-line assessmenwt here the performancei s compared between the QoS controlled multiplexer,a n emulatedM PEG-4F lexMux multiplexers chemea, ndt he targetr equirements. The performanceis also shownt o be better in a real environmentw hen the QoS controlled multiplexeri s comparedw ith the real MPEG-4F lexMux scheme
    corecore