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Stephen R Wirth
No abstract text is available yet for this article.
April 2017: JEMS: a Journal of Emergency Medical Services
Clisten Fátima Staffen, Mari Dalva Staffen, Mariana Londero Becker, Sara Emelie Löfgren, Yara Costa Netto Muniz, Renato Hajenius Aché de Freitas, Andrea Rita Marrero
The consumption of raw fish has increased considerably in the West, since it is said to be potentially healthier than processed fish (for containing omega 3 and 6, essential amino acids and vitamins). However this potential benefit, as well as the taste, value and even the risk of extinction are not the same for all species of fish, constituting grounds for fraud. Using the principles of the DNA barcode we revealed mislabelling of fish in Japanese restaurants and fishmarkets in Florianópolis, a popular tourist capital in Brazil...
2017: PeerJ
Jessica Medina, Diana Caro Rodríguez, Victoria A Arana, Andrés Bernal, Pierre Esseiva, Julien Wist
The sensorial properties of Colombian coffee are renowned worldwide, which is reflected in its market value. This raises the threat of fraud by adulteration using coffee grains from other countries, thus creating a demand for robust and cost-effective methods for the determination of geographical origin of coffee samples. Spectroscopic techniques such as Nuclear Magnetic Resonance (NMR), near infrared (NIR), and mid-infrared (mIR) have arisen as strong candidates for the task. Although a body of work exists that reports on their individual performances, a faithful comparison has not been established yet...
2017: International Journal of Analytical Chemistry
Roberta da Silveira, Julianna Matias Vágula, Ingrid de Lima Figueiredo, Thiago Claus, Marilia Bellanda Galuch, Oscar Oliveira Santos Junior, Jesui Vergilio Visentainer
Fast and innovative methodology to monitors the addition of soybean oil in extra virgin olive oil was developed employing ESI-MS with ionization operating in positive mode. A certified extra virgin olive oil and refined soybean oil samples were analyzed by direct infusion, the identification of a natural lipid marker present only in soybean oil (m/z 886.68 [TAG+NH4]+) was possible. The certified extra virgin olive oil was purposely adulterated with soybean oil in different levels (1, 5, 10, 20, 50, 70, 90%) being possible to observe that the new methodology is able to detect even small fraud concentration, such as 1% (v/v)...
December 2017: Food Research International
Anders Stenström
Existing research clearly shows that the public-private divide is continuously being challenged, recast and transformed. However, this article argues that a sharp distinction between public and private continues to operate as an important norm for professionals involved in the investigation of insurance claims fraud in Sweden. It shows how power within private insurance companies and the police authority is organized around the public-private divide, which is in turn mobilized to justify repression and to give investigations legitimacy...
December 1, 2017: British Journal of Sociology
Nakeva Redmond, Laura Harker, Yvan Bamps, Shauna St Clair Flemming, Jennie P Perryman, Nancy J Thompson, Rachel E Patzer, Nancy S DeSousa Williams, Kimberly R Jacob Arriola
BACKGROUND: The lack of available organs is often considered to be the single greatest problem in transplantation today. Internet use is at an all-time high, creating an opportunity to increase public commitment to organ donation through the broad reach of Web-based behavioral interventions. Implementing Internet interventions, however, presents challenges including preventing fraudulent respondents and ensuring intervention uptake. Although Web-based organ donation interventions have increased in recent years, process evaluation models appropriate for Web-based interventions are lacking...
November 30, 2017: Journal of Medical Internet Research
(no author information available yet)
No abstract text is available yet for this article.
September 15, 2017: Pediatric Dentistry
Brian M Till, Alexander W Peters, Salim Afshar, John Meara
Blockchain technology and cryptocurrencies could remake global health financing and usher in an era global health equity and universal health coverage. We outline and provide examples for at least four important ways in which this potential disruption of traditional global health funding mechanisms could occur: universal access to financing through direct transactions without third parties; novel new multilateral financing mechanisms; increased security and reduced fraud and corruption; and the opportunity for open markets for healthcare data that drive discovery and innovation...
2017: BMJ Global Health
Connor Black, Olivier P Chevallier, Simon A Haughey, Julia Balog, Sara Stead, Steven D Pringle, Maria V Riina, Francesca Martucci, Pier L Acutis, Mike Morris, Dimitrios S Nikolopoulos, Zoltan Takats, Christopher T Elliott
Introduction: Fish fraud detection is mainly carried out using a genomic profiling approach requiring long and complex sample preparations and assay running times. Rapid evaporative ionisation mass spectrometry (REIMS) can circumvent these issues without sacrificing a loss in the quality of results. Objectives: To demonstrate that REIMS can be used as a fast profiling technique capable of achieving accurate species identification without the need for any sample preparation...
2017: Metabolomics: Official Journal of the Metabolomic Society
Silvia Grassi, Ernestina Casiraghi, Cristina Alamprese
This study evaluates the reliability of a handheld NIR device in distinguishing fillets and patties of Atlantic cod (n = 80) from those of haddock (n = 90), in comparison with a FT-NIR benchtop spectrometer. The authentication issue was faced by Linear Discriminant Analysis (LDA) and Soft Independent Modelling of Class Analogy (SIMCA), pre-treating spectral data with different algorithms, and validating models both internally and externally. The best LDA models gave 100% correct classification in prediction...
March 15, 2018: Food Chemistry
Ana Garrido-Varo, María-Teresa Sánchez, María-José De la Haba, Irina Torres, Dolores Pérez-Marín
Near-Infrared (NIR) Spectroscopy was used for the non-destructive assessment of physico-chemical quality parameters in olive oil. At the same time, the influence of the sample presentation mode (spinning versus static cup) was evaluated using two spectrophotometers with similar optical characteristics. A total of 478 olive oil samples were used to develop calibration models, testing various spectral signal pre-treatments. The models obtained by applying MPLS regression to spectroscopic data yielded promising results for olive oil quality measurements, particularly for acidity, the peroxide index and alkyl and ethyl ester content...
November 16, 2017: Sensors
D Douglas Miller, Eric W Brown
Computer science advances and ultra-fast computing speeds find artificial intelligence (AI) broadly benefitting modern society - forecasting weather, recognizing faces, detecting fraud, and deciphering genomics. AI's future role in medical practice remains an unanswered question. Machines (computers) learn to detect patterns not decipherable using biostatistics by processing massive datasets (big data) through layered mathematical models (algorithms). Correcting algorithm mistakes (training) adds to AI predictive model confidence...
November 7, 2017: American Journal of Medicine
B Gouilleux, J Marchand, B Charrier, G S Remaud, P Giraudeau
We report the use of an Ultrafast 2D NMR approach applied on a benchtop NMR system (43 MHz) for the authentication of edible oils. Our results demonstrate that a profiling strategy based on fast 2D NMR spectra recorded in 2.4 min is more efficient than the standard 1D experiments to classify oils from different botanical origins, since 1D spectra on the same samples suffer from strong peak overlaps. Six edible oils with different botanical origins (olive, hazelnut, sesame, rapeseed, corn and sunflower) have been clearly discriminated by PCA analysis...
April 1, 2018: Food Chemistry
(no author information available yet)
No abstract text is available yet for this article.
November 2017: Home Healthcare Now
Kyle Clark, Andrew George
Modern federal healthcare fraud investigations use big data to find outliers among providers who are then targeted for enforcement actions. This approach is being used to pursue an outsized number of criminal cases against home healthcare agencies, resulting in decades-long prison sentences and tens of millions in fines. But it is remarkably transparent, giving home healthcare providers ample opportunity to stay out of harm's way. The government has provided the statistical characteristics by which it searches for fraud among home healthcare agencies, along with the benchmarks it uses to determine who is an outlier...
November 2017: Home Healthcare Now
Maureen Anthony
No abstract text is available yet for this article.
November 2017: Home Healthcare Now
Sriyani Tidball, Shireen S Rajaram
Human trafficking is a serious public health issue and has long-term physical, mental, social, and economic consequences for survivors, their families, and communities. The Victims of Trafficking and Violence Protection Act of 2000 defines sex trafficking as a commercial sex act that is induced by force, fraud or coercion, or when a commercial sex act involves a person below 18 years of age. There is inadequate research from the perspectives of survivors. The purpose of this study was to gather data from survivors on their complex needs...
November 2, 2017: Behavioral Medicine
D A Eisner
There is great concern that results published in a large fraction of biomedical papers may not be reproducible. This article reviews the evidence for this and considers some of the factors that are responsible and how the problem may be solved. One issue is scientific fraud. This, in turn, may result from pressures put on scientists to succeed including the need to publish in "high impact" journals. I emphasise the importance of judging the quality of the science itself as opposed to using surrogate metrics...
October 24, 2017: Journal of Molecular and Cellular Cardiology
Kate L Sidwick, Amy E Johnson, Craig D Adam, Luisa Pereira, David F Thompson
Metabonomic profiling techniques, with established quality control methods, have been used to detect subtle metabolic differences in tissue that could aid in the discovery of fraud within the food industry. Liquid chromatography quadrupole time-of-flight mass spectrometry (LC-Q-TOF-MS) was utilized to acquire metabolic profiles of muscle, heart, and liver tissue from normally slaughtered and dead on arrival chickens. A workflow including XCMS Online for data processing and robust confirmatory statistics was used in order to differentiate between the two sample types...
November 7, 2017: Analytical Chemistry
Kendra L Seaman, Josiah K Leong, Charlene C Wu, Brian Knutson, Gregory R Samanez-Larkin
Older adults are disproportionately targeted by fraud schemes that advertise unlikely but large returns (positively skewed risks). We examined adult age differences in choice and neural activity as individuals considered risky gambles. Gambles were symmetric (50% chance of modest win or loss), positively skewed (25% chance of large gain), or negatively skewed (25% chance of large loss). The willingness to accept positively skewed relative to symmetric gambles increased with age, and this effect replicated in an independent behavioral study...
October 23, 2017: Cognitive, Affective & Behavioral Neuroscience
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