910 resultados para Missing samples
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Monthly newsletter for public safety
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Monthly newsletter for public safety
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Saffaj et al. recently criticized our method of monitoring carbon dioxide in human postmortem cardiac gas samples using Headspace-Gas Chromatography-Mass Spectrometry. According to the authors, their demonstration, based on the latest SFSTP guidelines (established after 2007 [1,2]) fitted for the validation of drug monitoring bioanalytical methods, has put in evidence potential errors. However, our validation approach was built using SFSTP guidelines established before 2007 [3-6]. We justify the use of these guidelines because of the post-mortem context of the study (and not clinical) and the gaseous state of the sample (and not solid or liquid). Using these guidelines, our validation remains correct.
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Missing Persons Bulletin provides a list of people reported to law enforcement agencies that are currently missing. This is the Monthly Missing Persons Bulletin published by the Iowa Missing Person Clearinghouse, Iowa Department of Public Safety, Division of Criminal Investigation.
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Missing Persons Bulletin provides a list of people reported to law enforcement agencies that are currently missing. This is the Monthly Missing Persons Bulletin published by the Iowa Missing Person Clearinghouse, Iowa Department of Public Safety, Division of Criminal Investigation.
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Missing Persons Bulletin provides a list of people reported to law enforcement agencies that are currently missing. This is the Monthly Missing Persons Bulletin published by the Iowa Missing Person Clearinghouse, Iowa Department of Public Safety, Division of Criminal Investigation.
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Missing Persons Bulletin provides a list of people reported to law enforcement agencies that are currently missing. This is the Monthly Missing Persons Bulletin published by the Iowa Missing Person Clearinghouse, Iowa Department of Public Safety, Division of Criminal Investigation.
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Missing Person Bulletin providing a list of those persons reported to a law enforcment agency that are currently missing. This is the Monthly Missing Persons Bulletin published by the Iowa Missing Person Clearinghouse, Iowa Department of Public Safety, Division of Criminal Investigation
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Missing Persons Bulletin provides a list of people reported to law enforcement agencies that are currently missing. This is the Monthly Missing Persons Bulletin published by the Iowa Missing Person Clearinghouse, Iowa Department of Public Safety, Division of Criminal Investigation.
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We present a compact portable biosensor to measure arsenic As(III) concentrations in water using Escherichia coli bioreporter cells. Escherichia coli expresses green fluorescent protein in a linearly dependent manner as a function of the arsenic concentration (between 0 and 100 μg/L). The device accommodates a small polydimethylsiloxane microfluidic chip that holds the agarose-encapsulated bacteria, and a complete optical illumination/collection/detection system for automated quantitative fluorescence measurements. The device is capable of sampling water autonomously, controlling the whole measurement, storing and transmitting data over GSM networks. We demonstrate highly reproducible measurements of arsenic in drinking water at 10 and 50 μg/L within 100 and 80 min, respectively.
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The signaling pathway that regulates glucose-stimulated insulin secretion depends on glucose metabolism, which is itself controlled by glucokinase. In a recent issue of Cell, show that altering N-glycosylation of the GLUT2 glucose transporter prevents its anchoring and retention at the cell surface; this impairs glucose uptake and insulin secretion.
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Annual report for Missing Persons, Division of Criminal Investigation.
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Annual report for Missing Persons, Division of Criminal Investigation.
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Originally composed of the single family Chlamydiaceae, the Chlamydiales order has extended considerably over the last several decades. Chlamydia-related bacteria were added and classified into six different families and family-level lineages: the Criblamydiaceae, Parachlamydiaceae, Piscichlamydiaceae, Rhabdochlamydiaceae, Simkaniaceae, and Waddliaceae. While several members of the Chlamydiaceae family are known pathogens, recent studies showed diverse associations of Chlamydia-related bacteria with human and animal infections. Some of these latter bacteria might be of medical importance since, given their ability to replicate in free-living amoebae, they may also replicate efficiently in other phagocytic cells, including cells of the innate immune system. Thus, a new Chlamydiales-specific real-time PCR targeting the conserved 16S rRNA gene was developed. This new molecular tool can detect at least five DNA copies and show very high specificity without cross-amplification from other bacterial clade DNA. The new PCR was validated with 128 clinical samples positive or negative for Chlamydia trachomatis or C. pneumoniae. Of 65 positive samples, 61 (93.8%) were found to be positive with the new PCR. The four discordant samples, retested with the original test, were determined to be negative or below detection limits. Then, the new PCR was applied to 422 nasopharyngeal swabs taken from children with or without pneumonia; a total of 48 (11.4%) samples were determined to be positive, and 45 of these were successfully sequenced. The majority of the sequences corresponded to Chlamydia-related bacteria and especially to members of the Parachlamydiaceae family.
