112 research outputs found

    NH Department of Environmental Services Shellfish Program Activities, January 2006 – December 2006

    Get PDF
    This report summarizes the activities of the NH Department of Environmental Services (NHDES) Shellfish Program for the period of January 2006 to December 2006, emphasizing those tasks for which NHDES received direct funding from the NH Estuaries Project. The NHDES Shellfish Program conducts a number of activities to minimize the health risks associated with consuming shellfish, and to continue to comply with National Shellfish Sanitation Program guidelines. These include water sampling on a prescheduled/randomized basis, as well as a pollution source identification and evaluation program. These sampling programs are supplemented by other activities aimed at improving the management of conditionally-approved harvesting areas. Augmented sampling in conditionally approved areas after rainfall events and/or sewage treatment plant upsets provides information to improve management decisions and, in some cases, increase harvesting opportunities. A study to compare results from two different bacterial analysis methods (the traditional fecal coliform Most Probable Number, or MPN, test, and a newer fecal coliform membrane filtration test using mTEC agar) was initiated in 2004 and continued through 2006. The results of the study will help DES determine how classification of growing areas might change if the lessexpensive mTEC test is chosen to replace the traditional MPN method. Sanitary surveys were completed for the Hampton/Seabrook Estuary, as well as for the Piscataqua River (North) growing area, which encompasses the tidal portions of the Cocheco River, Salmon Falls River, and Upper Piscataqua River. Future work will focus on maintaining the classifications established by sanitary surveys conducted since 2000. The remaining 13 percent of unclassified estuarine waters will be periodically evaluated to determine if/when sanitary surveys should be conducted

    NHDES Shellfish Program Activities, Jan -Dec 2004, Nash, C

    Get PDF
    This report summarizes the activities of the NH Department of Environmental Services (NHDES) Shellfish Program for the period of January 2004 to December 2004. The NHDES Shellfish Program conducts a number of activities to minimize the health risks associated with consuming shellfish, and to continue to comply with National Shellfish Sanitation Program guidelines. Among basic program functions is a routine water quality monitoring program, which involved the collection of nearly 800 samples at over 70 sites in 2004, the results of which are used to ensure that assessments of water quality for all areas are kept up-to-date. Weekly “red tide” monitoring was critical for early detection of dangerous levels of Paralytic Shellfish Poisoning toxin in offshore waters in August, leading a nearly one-month closure to all harvesting in the Atlantic coastal waters. The program’s pollution source identification and evaluation program involved the collection of nearly 200 water samples, used to guide proper classification of the receiving waters. A number of other studies and sampling programs, including effluent dilution/dispersion studies of the Newmarket and Dover wastewater treatment facilities, were completed. A particularly useful sampling program has been the initiation of post-rainfall water and shellfish tissue sampling in conditionally approved areas. This program improved management decisions and increased harvesting opportunities in Hampton/Seabrook Harbor, providing data that drove decisions to open the flats on most of the 16 days that the harbor was available for harvesting. Sanitary surveys were completed for Great Bay, and are near completion for Little Bay and the Bellamy River. Surveys for Hampton/Seabrook Harbor, the Cocheco River, Salmon Falls River, and the Upper Piscataqua River have been initiated and are scheduled for completion in 2005

    Bringing Space to the Classroom Through STEM Education Providing Extreme Low Earth Orbit Missions Using ThinSats

    Get PDF
    The future of Space Science depends on our ability to attract and engage students into Science, Technology, Engineering and Mathematics (STEM) fields. Authentic, hands-on experience with space applications enhances engagement and learning in the STEM disciplines and can help to attract disinterested students to STEM careers. The Virginia Commercial Space Flight Authority (Virginia Space), Twiggs Space Lab, LLC (TSL), Orbital ATK, NearSpace Launch, Inc. (NSL), and NASA Wallops Flight Facility, have collaboratively developed the ThinSat Program, providing student teams the opportunity to design, develop, test, and monitor their own experimental payload which will be integrated into a pico-satellite and launched from the second stage of Orbital ATK’s Antares Rocket. The goal of the program is to provide students the opportunity to lead and participate in the development of a spacecraft payload through its life cycle over the course of an academic year. The student experience will be enhanced with classroom visits and videos created by the team to educate the students on satellite manufacturing, environmental testing, satellite integration, spaceport, launch vehicle, range and spacecraft operations. The ThinSat Program will provide a unique and important STEM opportunity for students to develop critical skills in systems engineering and space science that will complement existing programs

    Recent advances in Omega-3: Health benefits, sources, products and bioavailability

    Get PDF
    The joint symposium of The Omega-3 Centre and the Australasian Section American Oil Chemists Society; Recent Advances in Omega-3: Health Benefits, Sources, Products and Bioavailability, was held November 7, 2013 in Newcastle, NSW, Australia. Over 115 attendees received new information on a range of health benefits, aquaculture as a sustainable source of supply, and current and potential new and novel sources of these essential omega-3 long-chain (LC, ≥C20) polyunsaturated fatty acid nutrients (also termed LC omega-3). The theme of “Food versus Fuel” was an inspired way to present a vast array of emerging and ground breaking Omega-3 research that has application across many disciplines. Eleven papers submitted following from the Omega-3 Symposium are published in this Special Issue volume, with topics covered including: an update on the use of the Omega-3 Index (O3I), the effects of dosage and concurrent intake of vitamins/minerals on omega-3 incorporation into red blood cells, the possible use of the O3I as a measure of risk for adiposity, the need for and progress with new land plant sources of docosahexaenoic acid (DHA, 22:6ω3), the current status of farmed Australian and New Zealand fish, and also supplements, in terms of their LC omega-3 and persistent organic pollutants (POP) content, progress with cheap carbon sources in the culture of DHA-producing single cell organisms, a detailed examination of the lipids of the New Zealand Greenshell mussel, and a pilot investigation of the purification of New Zealand hoki liver oil by short path distillation. The selection of papers in this Special Issue collectively highlights a range of forward looking and also new and including positive scientific outcomes occurring in the omega-3 field

    Comparison of retention in observational cohorts and nested simulated HIV vaccine efficacy trials in the key populations in Uganda.

    Get PDF
    BACKGROUND: Outcomes in observational studies may not best estimate those expected in the HIV vaccine efficacy trials. We compared retention in Simulated HIV Vaccine Efficacy Trials (SiVETs) and observational cohorts drawn from two key populations in Uganda. METHODS: Two SiVETs were nested within two observational cohorts, one in Fisherfolk (FF) and another one in Female Sex Workers (FSW). Adult participants in each observational cohort were screened for enrolment into SiVETs. Those screened-out or not screened continued participation in the observational (non-SiVET) cohorts. SiVET participants were administered a licensed hepatitis B vaccine in a schedule that mimicked an actual HIV vaccine efficacy trial. Both cohorts were followed for 12 months and retention was assessed through dropout, defined as lost to follow up, being uncontactable, refusal to continue or missing the last study clinic visit. Dropout rates were compared using Poisson models giving rate ratios and 95% confidence intervals (95%CI). RESULTS: Out of 1525 participants (565 FF and 960 FSW), 572 (38%) were enrolled into SiVETs (282-FF and 290-FSW), and 953 (62%) remained in the non-SiVET cohorts. Overall, 326 (101 SiVET, 225 non-SiVET) dropped out in 1260 Person Years of Observation (PYO), a dropout rate of 25.9 /100 PYO (95%CI: 23.2-28.8); fewer dropped out in the SiVET cohorts (18.4, 95% CI: 15.1-22.4) than in the non-SiVET cohorts (31.6, 95% CI: 27.8-36.1), rate ratio (RR) =0.58, 95% CI: 0.46-0.73. In all cohorts, the dropout was more marked in FSW than in FF population. Duration lived in community was associated with dropout in both SiVETs and religion in both non-SiVET cohorts. CONCLUSION: The rate of dropout was lower in SiVET compared to non-SiVET cohort. Though the difference in dropout between SiVET and non-SiVET was generally similar, the actual dropout rates were higher in the FSW population. Conduct of SiVETs in these key populations could mean that designing HIV Vaccine Efficacy Trials will benefit from lower dropout rate shown in SiVET than non-SiVET observational cohort

    Comparison of HIV Risk Behaviors Between Clinical Trials and Observational Cohorts in Uganda.

    Get PDF
    Many key populations have high-risk behaviors for HIV infection making them suitable for HIV vaccine efficacy trials. However, these behaviors may change when participants enroll into a trial. We used HIV simulated vaccine efficacy trials (SiVETs) nested within observational cohorts of fisherfolks and female sex workers in Uganda to evaluate this difference. We screened observational cohort participants for enrolment into SiVETs, until 572 were enrolled. Those not enrolled (n = 953) continued participation in the observational cohorts. We determined risk behaviors at baseline and at 1 year, assigned a numeric score to each behavior and defined composite score as the sum of reported behaviors. We compared changes in scores over 12 months. Both observational cohorts and SiVETs saw a significant decrease in score but greatest in the SiVETs. Investigators recruiting for trials from these populations should consider the likely effect of reduction in risk behaviors on incident HIV infection and trial statistical power

    Dynamic real-time hydrological status monitoring in the UK

    Get PDF
    A 'display' at the EGU General Assembly 2020. Understanding the current hydro-meteorological situation is critical to manage extreme events and water resources. The UK Water Resources Portal (UKWRP) has been developed to enable dynamic, interactive, real-time access to hydro-meteorological data, including catchment daily rainfall, real-time daily mean river flows, real-time soil moisture data from COSMOS-UK and standardised climate indices. Users can access and view data at the field, grid cell and catchment scale enabling holistic assessments of the hydro-meteorological status at a range of spatial scales. The portal offers a way of exploring the full range of river flow and rainfall variability, including comparing current conditions to those in the past, from droughts to floods. A variety of different plotting capabilities mean users can view and explore data in different ways depending on their requirements. The UKWRP can be used alone or alongside other resources such as: the UK Hydrological Outlook seasonal forecasts, the Hydrological Summary for the UK and Environment Agency Water Situation Reports, to manage water resources, to plan and prepare for extreme events, and to understand and communicate their severity. The UKWRP enables all water users, from farmers, to water companies to members of the general public to view and explore the data used by regulators to manage water supplies. Equalising access to data can be extremely powerful; for example in the case of farmers, it means they can easily view real time river flows in relation to conditions on their licence using the same data used by regulators to impose abstraction restrictions during a drought. Here we present the stakeholder engagement story of how and why the UKWRP was developed, demonstrate the capability of the UKWRP to monitor the hydrological situation in real time, and present plans for its future development, such as the addition of more indicators and indices

    Dynamic high resolution hydrological status monitoring in real-time: the UK Water Resources Portal

    Get PDF
    Understanding the current hydro-meteorological situation is critical to manage extreme events and water resources. The United Kingdom Water Resources Portal (UKWRP) has been developed to enable dynamic, interactive access to hydro-meteorological data across the United Kingdom, including catchment daily rainfall (near), real-time daily mean river flows, groundwater levels, real-time soil moisture data, and standardised climate indices. The UKWRP offers a way of exploring the full range of river flow and rainfall variability, including comparing current conditions to those in the past, from droughts to floods. A variety of different plotting capabilities mean users can view and explore data in different ways depending on their requirements. Here we discuss the mechanisms and the engagement undertaken to develop the UKWRP, in addition to the technical issues and solutions of bringing multiple data sources and types together, how the data are processed, stored and published to deliver an integrated tool for water resources management. The UKWRP enables all water users–from farmers, to water companies to members of the general public–to view and explore the data used by regulators to manage water supplies. We demonstrate how the UKWRP can be used to monitor the hydrological situation, using recent examples of both floods and droughts, and enables consistent messaging and universal access to data and information. Finally, we discuss the decisions the information provided in the UKWRP can support, and possible future developments. The UKWRP is aimed at the United Kingdom water research and management community, but we envisage that the Portal (and the development pathway and technical solutions reported here) could provide a useful exemplar for similar systems in other international settings

    Use of reliable contraceptives and its correlates among women participating in Simulated HIV vaccine efficacy trials in key-populations in Uganda.

    Get PDF
    To prevent pregnancy in trials, reliable contraceptive use is key. We investigated reliable contraceptive use at baseline and six months in key-populations in Uganda, during two Simulated HIV Vaccine Efficacy trials (SiVETs). SiVETs were nested within observational cohorts of Fisherfolk (2012-2014) and Female sex workers (2014-2017). Women in the observational cohorts were screened and enrolled into the SiVET. The trial administered a licensed Hepatitis B vaccine at 0, 1 and 6 months. Contraceptive use data were recorded at baseline and follow-up clinic visits. Reliable contraceptives (injectable Depot Medroxyprogesterone Acetate (DMPA), implant, pills, and intrauterine device (IUD)) were promoted and provided to women not using a reliable method at enrolment. Overall, 367 women were enrolled. At baseline 203 (55%) reported use of reliable contraceptive. Of the 164 women not using a reliable method at enrolment, 131 (80%) started using them during follow-up bringing the overall number to 334 (91%) at the end of follow-up. Young age (≤35 years) was an independent predictor of reliable contraceptive use at both time points while other factors varied. Promotion and provision of reliable contraceptives increased the proportion using them and could help reduce the risk of pregnancy in future HIV prevention trials
    • …
    corecore