2,475 research outputs found
A new large volume filtration system for the sampling of oceanic particulate matter
A large volume in situ filtration system has been developed for the extraction of material greater than one micron in diameter from several cubic meters of water. The system has worked reliably to 400 meters. The particulate matter concentrations determined in profile compare well with those found using conventional Niskin-Nuclepore techniques. By using 53”m Nitex and 1”m glass fiber filters in series, the samples are separated into two size fractions...
Erratum: Next-to-leading order supersymmetric QCD predictions for associated production of gauginos and gluinos [Phys. Rev. D 62, 095014 (2000)]
Errors in the published version of the paper are corrected, and new figures
are provided.Comment: 3 pages, latex, 4 figure
Distributional Records of Amphibians and Reptiles from Coastal Plain of Arkansas
Distribution of amphibians and reptiles in the West Gulf Coastal Plain and Mississippi Alluvial Plain is not well known because extensive collecting has not been done in these areas and data in museums have not been published. New distributional records for three salamanders (Desmognathus fuscus brimleyorum, Manculus quadridigitarus, Plethodon glutinosus glutinosus) , two anurans (Rana areolata circulosa, Scaphiopus holbrooki holbrooki), and one snake (Lampropeltis doliata amaura) are presented. Additional collecting will be necessary to determine the exact range and status of the secretive species
Responding to unexpected infant deaths : experience in one English region
New national procedures for responding to the unexpected death of a child in England
require a joint agency approach to investigate each death and support the bereaved
family. As part of a wider population-based study of sudden unexpected deaths in
infancy (SUDI) we evaluated the implementation of this approach.
Methods: A process evaluation using a population-based study of all unexpected
deaths from birth to 2 years in the South West of England between January 2003 and
December 2006. Local police and health professionals followed a standardised
approach to the investigation of each death, supported by the research team set up to
facilitate this joint approach as well as collect data for a wider research project.
Results: We were notified of 155/157 SUDI, with a median time to notification of 2
hours. Initial multi-agency discussions took place in 93.5% of cases. A joint home
visit by police officers with health professionals was carried out in 117 cases, 75%
within 24 hours of the death. Time to notification and interview reduced during the 4
years of the study. Autopsies were conducted on all cases, the median time to autopsy
being 3 days. At the conclusion of the investigation, a local multi-agency case
discussion was held in 88% of cases. The median time for the whole process
(including family support) was 5 months.
Conclusions: This study has demonstrated that with appropriate protocols and
support, the joint agency approach to the investigation of unexpected infant deaths
can be successfully implemented
Measuring overlaps in mesoscopic spin glasses via conductance fluctuations
We consider the electonic transport in a mesoscopic metallic spin glasses. We
show that the distribution of overlaps between spin configurations can be
inferred from the reduction of the conductance fluctuations by the magnetic
impurities. Using this property, we propose new experimental protocols to probe
spin glasses directly through their overlaps
Accuracy of coverage survey recall following an integrated mass drug administration for lymphatic filariasis, schistosomiasis, and soil-transmitted helminthiasis
Achieving target coverage levels for mass drug administration (MDA) is essential to elimination and control efforts for several neglected tropical diseases (NTD). To ensure program goals are met, coverage reported by drug distributors may be validated through household coverage surveys that rely on respondent recall. This is the first study to assess accuracy in such surveys.Recall accuracy was tested in a series of coverage surveys conducted at 1, 6, and 12 months after an integrated MDA in Togo during which three drugs (albendazole, ivermectin, and praziquantel) were distributed. Drug distribution was observed during the MDA to ensure accurate recording of persons treated during the MDA. Information was obtained for 506, 1131, and 947 persons surveyed at 1, 6, and 12 months, respectively. Coverage (defined as the percentage of persons taking at least one of the MDA medications) within these groups was respectively 88.3%, 87.4%, and 80.0%, according to the treatment registers; it was 87.9%, 91.4% and 89.4%, according to survey responses. Concordance between respondents and registers on swallowing at least one pill was >95% at 1 month and >86% at 12 months; the lower concordance at 12 months was more likely due to difficulty matching survey respondents with the year-old treatment register rather than inaccurate responses. Respondents generally distinguished between pills similar in appearance; concordance for recall of which pills were taken was over 80% in each survey.In this population, coverage surveys provided remarkably consistent coverage estimates for up to one year following an integrated MDA. It is not clear if similar consistency will be seen in other settings, however, these data suggest that in some settings coverage surveys might be conducted as much as one year following an MDA without compromising results. This might enable integration of post-MDA coverage measurement into large, multipurpose, periodic surveys, thereby conserving resources
Phonon Emission from a 2D Electron Gas: Evidence of Transition to the Hydrodynamic Regime
Using as a thermometer the temperature dependent magneto-transport of a
two-dimensional electron gas, we find that effective temperature scales with
current as , where in the {\it Shubnikov
de-Haas} regime, and in both the {\it integer and fractional}
quantum Hall effect. This implies the phonon energy emission rate changes from
the expected to . We explain this, as well as the
dramatic enhancement in phonon emission efficiency using a hydrodynamic model.Comment: 4 pages, 2 Postscript figures uuencoded with TeX file uses psfig
macro. Submitted to Phys. Rev. Let
A review of bovine cases consigned under veterinary certification to emergency and casualty slaughter in Ireland during 2006 to 2008
The emergency and casualty slaughter of cattle for human consumption (in cases where animals are likely to have suffered from acute or chronic pain, respectively) in Ireland requires that the animal is accompanied to the slaughterhouse by an official veterinary certificate (VC) completed on-farm by the owner's private veterinary practitioner (PVP). No published data is currently available in Ireland based on information provided in these VCs. In this paper, we present a review of bovine cases consigned under veterinary certification to emergency and casualty slaughter in Ireland during 2006 to 2008. All VCs during the years 2006 (where available), 2007 and 2008 were collected from four large Irish slaughterhouses. The data were computerized, and analysed using descriptive and spatial methods. In total, 1,255 VCs were enrolled into the study (1,255 study animals, 1,072 study herds), 798 (63.6%) and 457 (36.4%) animals were consigned to emergency and casualty slaughter, respectively. VCs were completed throughout the year, with consigned animals travelling a mean distance of 27.2 km from farm to slaughter. The time elapsed between veterinary certification and slaughter was greater than three days for 18.2% of all study animals. In 965 (76.9%) animals, the certified suspected disability related to the locomotory system, most commonly as a result of fractures. Among animals for which data were available, 11.9% were totally condemned at post-mortem. The transport of animals with fractured limbs and/or other painful conditions is a significant animal welfare concern.Deposited by bulk impor
Modeling Adaptation with Klaim
In recent years, it has been argued that systems and applications, in order to deal with their increasing complexity, should be able to adapt their behavior according to new requirements or environment conditions. In this paper, we present an investigation aiming at studying how coordination languages and formal methods can contribute to a better understanding, implementation and use of the mechanisms and techniques for adaptation currently proposed in the literature. Our study relies on the formal coordination language Klaim as a common framework for modeling some well-known adaptation techniques: the IBM MAPE-K loop, the Accord component-based framework for architectural adaptation, and the aspect- and context-oriented programming paradigms. We illustrate our approach through a simple example concerning a data repository equipped with an automated cache mechanism
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