Category Archives: zJournal articles

Assessment of the Acute and Chronic Health Hazards of Hydraulic Fracturing Fluids

Journal of Occupational and Environmental Hygiene  Volume 12, Issue 9, 2015;  DOI:10.1080/15459624.2015.1029612

There is growing concern about how hydraulic fracturing affects public health because this activity involves handling large volumes of fluids that contain toxic and carcinogenic constituents, which are injected under high pressure through wells into the subsurface to release oil and gas from tight shale formations. The constituents of hydraulic fracturing fluids (HFFs) present occupational health risks because workers may be directly exposed to them, and general public health risks because of potential air and water contamination. Hazard identification, which focuses on the types of toxicity that substances may cause, is an important step in the complex health risk assessment of hydraulic fracturing. This article presents a practical and adaptable tool for the hazard identification of HFF constituents, and its use in the analysis of HFF constituents reported to be used in 2,850 wells in North Dakota between December 2009 and November 2013. Of the 569 reported constituents, 347 could be identified by a Chemical Abstract Service Registration Number (CASRN) and matching constituent name. The remainder could not be identified either because of trade secret labeling (210) or because of an invalid CASRN (12). Eleven public databases were searched for health hazard information on thirteen health hazard endpoints for 168 identifiable constituents that had at least 25 reports of use. Health hazard counts were generated for chronic and acute endpoints, including those associated with oral, inhalation, ocular, and dermal exposure. Eleven of the constituents listed in the top 30 by total health hazard count were also listed in the top 30 by reports of use. This includes naphthalene, which along with benzyl chloride, has the highest health hazard count. The top 25 constituents reportedly used in North Dakota largely overlap with those reported for Texas and Pennsylvania, despite different geologic formations, target resources (oil vs. gas), and disclosure requirements. Altogether, this database provides a public health tool to help inform stakeholders about potential health hazards, and to aid in the reformulation of less hazardous HFFs.

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Journal of Clinical Microbiology – Early edition articles – 19 August 2015

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New CLSI document – M52 – Verification of Commercial Microbial Identification and Antimicrobial Susceptibility Testing Systems

M52 Verification of Commercial Microbial Identification and Antimicrobial Susceptibility Testing Systems – 1st Edition. CLSI document M52 (2015)

This guideline includes recommendations for verification of commercial US Food and Drug Administration–cleared microbial identification and antimicrobial susceptibility testing systems by clinical laboratory professionals to fulfill regulatory or quality assurance requirements for the use of these systems for diagnostic testing.

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New CLSI document – QMS11-Ed2: Nonconforming Event Management

QMS11-Ed2: Nonconforming Event Management –  2nd Edition (2015)

Grounded in the principles of quality management, risk management, and patient safety, this guideline provides an outline and content for developing a program to manage a laboratory’s nonconforming events.

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Influenza vaccine also prevents heart attacks, UNSW study finds

The Sydney Morning Herald Harriet Alexander August 27, 2015

It is like riding a bicycle to avoid the traffic and accidentally getting fit.
People who get the flu vaccine are less likely to have a heart attack.
A study by University of NSW researchers has found that people who have been vaccinated against influenza are 29 per cent less likely to have a heart attack – representing a greater protective effect than ceasing smoking and nearly as much as taking statins.
They are now advocating that the flu vaccine be provided free of charge to everybody aged over 50, extending the current scheme that makes it available to people over 65.

Read more: http://www.smh.com.au/national/health/influenza-vaccine-also-prevents-heart-attacks-unsw-study-finds-20150826-gj88o3.html

Link to Original Article in BMJ Heart journal: http://heart.bmj.com/content/early/2015/08/26/heartjnl-2015-307691.full.pdf+html?sid=8e6939e2-767b-42d5-88b4-e2762b2039c3

 

New in the library collection – Death certificates and archaic medical terms

Death certificates and archaic medical terms, 2nd ed.  (2015) / Helen V. Smith

“Death certificates are an important document in family research both to ‘kill off’ our ancestors and to determine their cause of death. This is especially so for people who are interested in establishing their medical genealogy. However at times it seems as though the cause of death is in a foreign language. Death certificates and archaic medical terms examines the history and evolution of death certificates … . It also gives meanings to a number of archaic terms found on death certificates … .”–Back cover.

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New in the library collection – Forensic DNA typing: interpretation

Advanced topics in forensic DNA typing: interpretation (2015) / John M. Butler

Advanced Topics in Forensic DNA Typing: Interpretation builds upon the previous two editions of John Butler’s internationally acclaimed Forensic DNA Typing textbook with forensic DNA analysts as its primary audience. Intended as a third-edition companion to the Fundamentals of Forensic DNA Typing volume published in 2010 and Advanced Topics in Forensic DNA Typing: Methodology published in 2012, this book contains 16 chapters with 4 appendices providing up-to-date coverage of essential topics in this important field. Over 80 % of the content of this book is new compared to previous editions.

  • Provides forensic DNA analysts coverage of the crucial topic of DNA mixture interpretation and statistical analysis of DNA evidence
  • Worked mixture examples illustrate the impact of different statistical approaches for reporting results
  • Includes allele frequencies for 24 commonly used autosomal STR loci, the revised Quality Assurance Standards which went into effect September 2011

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