1,249 research outputs found

    Ebola Contact Tracing Study data

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    The collection contains four datasets captured in the Ebola Contact Tracing Study: [1] 'summary_data_cases' contains details of the 41 confirmed Ebola cases included in the study; [2] 'app_data_contacts' contains details of the 646 Ebola contacts registered on the Ebola Contact Tracing App (ECT) smartphone app. These originate from 18 Ebola cases (16 were laboratory confirmed and 2 were “secret burials” that were not confirmed); [3] 'paper_data_contacts' describes 408 Ebola contacts who were identified from 25 Ebola cases for monitoring using the standard paper-based system for contact tracing; and [4] 'main_analysis_dataset' contains information on 804 Ebola contacts and their contact tracing monitoring status collected using both the ECT app and paper-based system

    Complications of circumcision in male neonates, infants and children: a systematic review.

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    BACKGROUND: Approximately one in three men are circumcised globally, but there are relatively few data on the safety of the procedure. The aim of this paper is to summarize the literature on frequency of adverse events following pediatric circumcision, with a focus on developing countries. METHODS: PubMed and other databasess were searched with keywords and MeSH terms including infant/newborn/pediatric/child, circumcision, complications and adverse events. Searches included all available years and were conducted on November 6th 2007 and updated on February 14th 2009. Additional searches of the Arabic literature included searches of relevant databases and University libraries for research theses on male circumcision.Studies were included if they contained data to estimate frequency of adverse events following neonatal, infant and child circumcision. There was no language restriction. A total of 1349 published papers were identified, of which 52 studies from 21 countries met the inclusion criteria. The Arabic literature searches identified 46 potentially relevant papers, of which six were included. RESULTS: Sixteen prospective studies evaluated complications following neonatal and infant circumcision. Most studies reported no severe adverse events (SAE), but two studies reported SAE frequency of 2%. The median frequency of any complication was 1.5% (range 0-16%). Child circumcision by medical providers tended to be associated with more complications (median frequency 6%; range 2-14%) than for neonates and infants. Traditional circumcision as a rite of passage is associated with substantially greater risks, more severe complications than medical circumcision or traditional circumcision among neonates. CONCLUSIONS: Studies report few severe complications following circumcision. However, mild or moderate complications are seen, especially when circumcision is undertaken at older ages, by inexperienced providers or in non-sterile conditions. Pediatric circumcision will continue to be practiced for cultural, medical and as a long-term HIV/STI prevention strategy. Risk-reduction strategies including improved training of providers, and provision of appropriate sterile equipment, are urgently needed

    Efficient TV white space filter bank transceiver

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    Future devices operating in the TV white space (TVWS) spectrum will require to access different bands at different locations and times in order to avoid interference to incumbent users, requiring agility and sufficient spectral masks to satisfy regulators. Further, with very high-speed ADCs and DACs becoming reality, the purpose of this paper is to present a transceiver front-end capable of simultaneously up- and downconverting a significant portion of the UHF band. The proposed approach takes a two-stage filter-bank conversion for implementation on state-of-the-art FPGAs. We present three different parameterisations, which are compatible with the 40 TVWS channels between 470 and 790MHz in Europe, and compare them in terms of complexity and latency

    Design considerations for a filter bank based TVWS transceiver

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    This paper discusses the design of a filter bank based transceiver capable of simultaneously up- or downconverting the entire TV white space (TVWS) frequency band. The spectral mask requirements favour a filter bank based approach, whereby RF sampling and the use of an FPGA for digital up- and down-conversion dictates a two-stage approach. Some of the design considerations, including filter design approaches, are discussed in this contribution

    TVWS filter bank transceiver on OMAP-L137 evaluation module

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    Communications devices operating in the TV white space (TVWS) spectrum will be strictly regulated, requiring compliance with spectral masks to protect incumbent users and sufficient frequency agility to allow access to numerous frequency bands at different times and locations. Therefore, future designs operating at radio frequency (RF) have been proposed. The purpose of this paper is to demonstrate an implementation of such a transceivers at a scale-down frequency implemented on the OMAP--L137 evaluation module, whereby the RF link can be replaced by the device's audio I/O, thus enabling easier observation and algorithm testing for students

    Digital RF multiplexing for a TVWS transceiver implementation

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    Future devices operating in the TV white space (TVWS) spectrum will require to access different bands at different locations and times in order to avoid interference to incumbent users, requiring agility and sufficient spectral masks to satisfy regulators. In order to realise radio devices capable of this, we briefly review design efforts on a radio transceiver capable up- and downconverting the 40 8MHz TVWS channels residing between 470MHz and 790MHz. While we briefly address the overall proposed structure, the aim of this contribution is to address the practical issues of interfacing data conversion devices sampling at RF to state-of-the-art FPGAs which can then perform the digital operations required for up- and downconversion

    ZENITH Adolescent HIV prevalence survey dataset

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    The ZENITH study sought to determine whether a package of services at primary care level would adequately meet the needs of vertically HIV-infected children and adolescents in Zimbabwe, or whether further decentralisation is needed to provide community-level HIV testing and/or treatment support. This dataset contains results of a adolescent HIV prevalence survey conducted in Harare

    Partially reconfigurable TVWS transceiver for use in UK and US markets

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    With more and more countries opening up sections of unlicensed spectrum for use by TV White Space (TVWS) devices, the prospect of building a device capable of operating in more than one world region is appealing. The difficulty is that the locations of TVWS bands within the radio spectrum are not globally harmonised. With this problem in mind, the purpose of this paper is to present a TVWS transceiver design which is capable of being reconfigured to operate in both the UK and US spectrum. We present three different configurations: one covering the UK TVWS spectrum and the remaining two covering the various locations of the US TVWS bands

    Data for Thinking Healthy Programme Pakistan trial (THPP-Pakistan)

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    An anonymised dataset of 570 women (one row per woman) who gave informed consent to participate in a cluster randomised, parallel, superiority, controlled trial in Rawalpindi, Pakistan in 2014-2017. The intervention was an adapted version of the Thinking Healthy Programme, delivered by peers; the control was enhanced usual care. Further details are available in the published protocol and paper. The dataset contains records of variables on stratified randomisation and clusters, socio-demographic information, depression and related outcomes, and therapy adherence. Visits occurred at baseline, and 3 and 6 months post-natal

    Data for Thinking Healthy Programme India trial (THPP-India)

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    An anonymised dataset of 280 women (one row per woman) who gave informed consent to participate in an individually-randomised, parallel, superiority, controlled trial in Goa, India in 2014-2016. The intervention was an adapted version of the Thinking Healthy Programme, delivered by peers; the control was enhanced usual care. Further details are available in the published protocol and paper. The dataset contains records of variables on stratified randomisation, socio-demographic information, depression and related outcomes, and therapy adherence. Visits occurred at baseline, and 3 and 6 months post-natal
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