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https://www.readbyqxmd.com/read/28431852/how-well-does-transfer-of-bacterial-pathogens-by-culture-swabs-correlate-with-transfer-by-hands
#1
Anubhav Kanwar, Thriveen S C Mana, Jennifer L Cadnum, Heba Alhmidi, Sreelatha Koganti, Curtis J Donskey
In laboratory testing and in isolation rooms, pickup and transfer of health care-associated pathogens by premoistened rayon swabs correlated well with pickup and transfer by bare hands or moistened gloves. These results suggest that swab cultures provide a useful surrogate indicator of the risk for pathogen pickup and transfer by hands.
April 18, 2017: American Journal of Infection Control
https://www.readbyqxmd.com/read/28428549/low-noise-time-resolved-optical-sensing-of-electromagnetic-pulses-from-petawatt-laser-matter-interactions
#2
T S Robinson, F Consoli, S Giltrap, S J Eardley, G S Hicks, E J Ditter, O Ettlinger, N H Stuart, M Notley, R De Angelis, Z Najmudin, R A Smith
We report on the development and deployment of an optical diagnostic for single-shot measurement of the electric-field components of electromagnetic pulses from high-intensity laser-matter interactions in a high-noise environment. The electro-optic Pockels effect in KDP crystals was used to measure transient electric fields using a geometry easily modifiable for magnetic field detection via Faraday rotation. Using dielectric sensors and an optical fibre-based readout ensures minimal field perturbations compared to conductive probes and greatly limits unwanted electrical pickup between probe and recording system...
April 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28428322/glycemic-control-during-continuous-subcutaneous-insulin-infusion-versus-multiple-daily-insulin-injections-in-type-2-diabetes-individual-patient-data-meta-analysis-and-meta-regression-of-randomized-controlled-trials
#3
REVIEW
John C Pickup, Yves Reznik, Alex J Sutton
OBJECTIVE: To compare glycemic control during continuous subcutaneous insulin infusion (CSII) and multiple daily insulin injections (MDI) in people with type 2 diabetes to identify patient characteristics that determine those best treated by CSII. RESEARCH DESIGN AND METHODS: Randomized controlled trials were selected comparing HbA1c during CSII versus MDI in people with type 2 diabetes. Data sources included Cochrane database and Ovid Medline. We explored patient-level determinants of final HbA1c level and insulin dose using Bayesian meta-regression models of individual patient data and summary effects using two-step meta-analysis...
May 2017: Diabetes Care
https://www.readbyqxmd.com/read/28406194/influenza-c-in-lancaster-uk-in-the-winter-of-2014-2015
#4
Kate V Atkinson, Lisa A Bishop, Glenn Rhodes, Nicolas Salez, Neil R McEwan, Matthew J Hegarty, Julie Robey, Nicola Harding, Simon Wetherell, Robert M Lauder, Roger W Pickup, Mark Wilkinson, Derek Gatherer
Influenza C is not included in the annual seasonal influenza vaccine, and has historically been regarded as a minor respiratory pathogen. However, recent work has highlighted its potential role as a cause of pneumonia in infants. We performed nasopharyngeal or nasal swabbing and/or serum sampling (n = 148) in Lancaster, UK, over the winter of 2014-2015. Using enzyme-linked immunosorbent assay (ELISA), we obtain seropositivity of 77%. By contrast, only 2 individuals, both asymptomatic adults, were influenza C-positive by polymerase chain reaction (PCR)...
April 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28402772/delays-in-emergency-care-and-mortality-during-major-u-s-marathons
#5
Anupam B Jena, N Clay Mann, Leia N Wedlund, Andrew Olenski
Background Large marathons frequently involve widespread road closures and infrastructure disruptions, which may create delays in emergency care for nonparticipants with acute medical conditions who live in proximity to marathon routes. Methods We analyzed Medicare data on hospitalizations for acute myocardial infarction or cardiac arrest among Medicare beneficiaries (≥65 years of age) in 11 U.S. cities that were hosting major marathons during the period from 2002 through 2012 and compared 30-day mortality among the beneficiaries who were hospitalized on the date of a marathon, those who were hospitalized on the same day of the week as the day of the marathon in the 5 weeks before or the 5 weeks after the marathon, and those who were hospitalized on the same day as the marathon but in surrounding ZIP Code areas unaffected by the marathon...
April 13, 2017: New England Journal of Medicine
https://www.readbyqxmd.com/read/28381423/integrin-mediated-traction-force-enhances-paxillin-molecular-associations-and-adhesion-dynamics-that-increase-the-invasiveness-of-tumor-cells-into-a-three-dimensional-extracellular-matrix
#6
Armen H Mekhdjian, FuiBoon Kai, Matthew G Rubashkin, Louis S Prahl, Laralynne M Przybyla, Alexandra L McGregor, Emily S Bell, J Matthew Barnes, Christopher C DuFort, Guanqing Ou, Alice C Chang, Luke Cassereau, Steven J Tan, Michael W Pickup, Jonathan N Lakins, Xin Ye, Michael W Davidson, Jan Lammerding, David J Odde, Alexander R Dunn, Valerie M Weaver
Metastasis requires tumor cells to navigate through a stiff stroma, and to squeeze through confined microenvironments. Whether tumors exploit unique biophysical properties to metastasize remains unclear. Data showed that invading mammary tumor cells, when cultured in a stiffened three-dimensional extracellular matrix that recapitulates the primary tumor stroma, adopt a basal-like phenotype. Metastatic tumor cells and basal-like tumor cells exerted higher integrin-mediated traction forces at the bulk and molecular levels, consistent with a motor-clutch model where motors and clutches are both increased...
April 5, 2017: Molecular Biology of the Cell
https://www.readbyqxmd.com/read/28372392/squid-based-current-sensing-noise-thermometry-for-quantum-resistors-at-dilution-refrigerator-temperatures
#7
Ethan Kleinbaum, Vidhi Shingla, G A Csáthy
We present a dc Superconducting QUantum Interference Device (SQUID)-based current amplifier with an estimated input referred noise of only 2.3 fA/Hz. Because of such a low amplifier noise, the circuit is useful for Johnson noise thermometry of quantum resistors in the kΩ range down to mK temperatures. In particular, we demonstrate that our circuit does not contribute appreciable noise to the Johnson noise of a 3.25 kΩ resistor down to 16 mK. Our circuit is a useful alternative to the commonly used High Electron Mobility Transistor-based amplifiers, but in contrast to the latter, it offers a much reduced 1/f noise...
March 2017: Review of Scientific Instruments
https://www.readbyqxmd.com/read/28362104/is-geometric-frustration-induced-disorder-a-recipe-for-high-ionic-conductivity
#8
Andre Düvel, Paul Heitjans, Pavel Fedorov, Gudrun Scholz, Giannantonio Cibin, Alan V Chadwick, David M Pickup, Silvia Ramos, Lewis W L Sayle, Emma K L Sayle, Thi X T Sayle, Dean C Sayle
Ionic conductivity is ubiquitous to many industrially important applications such as fuel cells, batteries, sensors, and catalysis. Tunable conductivity in these systems is therefore key to their commercial viability. Here, we show that geometric frustration can be exploited as a vehicle for conductivity tuning. In particular, we imposed geometric frustration upon a prototypical system, CaF2, by ball milling it with BaF2, to create nanostructured Ba1-xCaxF2 solid solutions and increased its ionic conductivity by over 5 orders of magnitude...
April 14, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28360326/mars-atmospheric-history-derived-from-upper-atmosphere-measurements-of-38-ar-36-ar
#9
B M Jakosky, M Slipski, M Benna, P Mahaffy, M Elrod, R Yelle, S Stone, N Alsaeed
The history of Mars' atmosphere is important for understanding the geological evolution and potential habitability of the planet. We determine the amount of gas lost to space through time using measurements of the upper-atmospheric structure made by the Mars Atmosphere and Volatile Evolution (MAVEN) spacecraft. We derive the structure of (38)Ar/(36)Ar between the homopause and exobase altitudes. Fractionation of argon occurs as a result of loss of gas to space by pickup-ion sputtering, which preferentially removes the lighter atom...
March 31, 2017: Science
https://www.readbyqxmd.com/read/28336607/genome-sequence-of-human-rhinovirus-a22-strain-lancaster-2015
#10
Kate V Atkinson, Lisa A Bishop, Glenn Rhodes, Nicolas Salez, Neil R McEwan, Matthew J Hegarty, Julie Robey, Nicola Harding, Simon Wetherell, Robert M Lauder, Roger W Pickup, Mark Wilkinson, Derek Gatherer
The genome of human rhinovirus A22 (HRV-A22) was assembled by deep sequencing RNA samples from nasopharyngeal swabs. The assembled genome is 8.7% divergent from the HRV-A22 reference strain over its full length, and it is only the second full-length genome sequence for HRV-A22. The new strain is designated strain HRV-A22/Lancaster/2015.
March 23, 2017: Genome Announcements
https://www.readbyqxmd.com/read/28306384/the-dichotomy-of-the-application-of-a-systems-approach-in-uk-healthcare-the-challenges-and-priorities-for-implementation
#11
Laura Pickup, Alexandra Lang, Sarah Atkinson, Sarah Sharples
There is increasing demand for a systems approach within national healthcare guidelines to provide a systematic and sustainable framework for improvements in patient safety. Supported by this is the growing body of evidence within Human Factors/Ergonomics (HFE) healthcare literature for the inclusion of this approach in health service design, provision and evaluation. This paper considers the current interpretation of this within UK healthcare systems and the dichotomy which exists in the challenge to implement a systems approach...
March 24, 2017: Ergonomics
https://www.readbyqxmd.com/read/28303514/euglycemic-ketosis-in-patients-with-type-2-diabetes-on-sglt2-inhibitor-therapy-an-emerging-problem-and-solutions-offered-by-diabetes-technology
#12
A Pfützner, D Klonoff, L Heinemann, N Ejskjaer, J Pickup
Diabetic ketoacidosis is an infrequent but life-threatening acute complication of diabetes, affecting predominantly patients with type 1 diabetes, children, and pregnant women, where ketosis is usually associated with marked hyperglycemia. Recently, an increasing number of cases have been reported of euglycemic diabetic ketoacidosis in patients with type 2 diabetes receiving sodium-glucose cotransporter 2 inhibitor treatment in routine practice. There is a minor, but not negligible diabetic ketoacidosis risk associated with this drug class, which was not seen in randomized clinical trials...
March 17, 2017: Endocrine
https://www.readbyqxmd.com/read/28293828/pm2-5-emissions-from-different-types-of-heavy-duty-truck-a-case-study-and-meta-analysis-of-the-beijing-tianjin-hebei-region
#13
Liying Song, Hongqing Song, Jingyi Lin, Cheng Wang, Mingxu Yu, Xiaoxia Huang, Yu Guan, Xing Wang, Li Du
Beijing-Tianjin-Hebei (BTH) region in China is affected seriously by the hazy weather that has a large impact on human health. PM2.5 is one of the most important reasons for hazy weather. Understanding the PM2.5 emission characteristics from different types of heavy-duty trucks (HDTs) is valuable in policies and regulations to improve urban air quality and mitigate vehicle emission in China. The investigation and analysis on HDT population and PM2.5 emission in BTH region are carried out. The results show that the population and PM2...
March 14, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28293053/effect-of-melatonin-on-the-outcome-of-assisted-reproductive-technique-cycles-in-women-with-diminished-ovarian-reserve-a-double-blinded-randomized-clinical-trial
#14
Bahia Namavar Jahromi, Sara Sadeghi, Shohreh Alipour, Mohammad Ebrahim Parsanezhad, Shaghayegh Moradi Alamdarloo
Diminished ovarian reserve (DOR) significantly decreases the success rate of the assisted reproductive technique (ART). In this study, we assessed the effect of melatonin on the ART outcomes in women with DOR. A double-blinded, randomized, clinical trial was performed on 80 women with DOR as a pilot study in Shiraz, between 2014 and 2015. DOR was defined as the presence of 2 of the following 3 criteria: 1) anti-Müllerian hormone ≤1, 2) follicle-stimulating hormone ≥10, and 3) bilateral antral follicle count ≤6...
January 2017: Iranian Journal of Medical Sciences
https://www.readbyqxmd.com/read/28283043/birmingham-beh%C3%A3-et-s-service-classification-of-disease-and-application-of-the-2014-international-criteria-for-beh%C3%A3-et-s-disease-icbd-to-a-uk-cohort
#15
Tim Blake, Luke Pickup, David Carruthers, Erika Marie Damato, Alastair Denniston, John Hamburger, Claire Maxton, Debbie Mitton, Philip I Murray, Peter Nightingale, Ana Poveda-Gallego, Andrea Richards, Andrew Whallett, Deva Situnayake
BACKGROUND: This study reports on the analysis of the application and diagnostic predictability of the revised 2014 ICBD criteria in an unselected cohort of UK patients, and the ensuing organ associations and patterns of disease. METHODS: A retrospective cohort study was conducted using a database of electronic medical records. Three categories were recognised: clinically defined BD, incomplete BD and rejected diagnoses of BD. We applied the ISG 1990 and ICBD 2014 classification criteria to these subgroups to validate diagnostic accuracy against the multidisciplinary assessment...
March 11, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28276684/ultrasound-induced-magnetic-imaging-of-tumors-targeted-by-biofunctional-magnetic-nanoparticles
#16
Kai-Wen Huang, Jen-Jie Chieh, Chih-Kuang Yeh, Shu-Hsien Liao, Yi-Yan Lee, Pei-Yi Hsiao, Wen-Chun Wei, Hong-Chang Yang, Herng-Er Horng
Biofunctional magnetic nanoparticles (MNPs) have been widely applied in biomedical engineering. MNPs are used as a contrast medium in magnetic imaging. Current methods of magnetic imaging, such as magnetic particle imaging and magnetic relaxometry, use small amounts of MNPs at target points far from the surface of the patient's body; these methods always consume considerable power to produce magnetic fields of high uniformity or gradient excitations. Some drawbacks, such as a limited imaging region, imaging system shielding, and complex algorithms based on assumptions of MNP properties or environmental factors, also limit the application of MNP methods in clinics...
March 28, 2017: ACS Nano
https://www.readbyqxmd.com/read/28269623/a-framework-for-informing-segmentation-of-in-vivo-mri-with-information-derived-from-ex-vivo-imaging-application-in-the-medial-temporal-lobe
#17
Paul A Yushkevich, Laura Wisse, Daniel Adler, Ranjit Ittyerah, John B Pluta, John L Robinson, Theresa Schuck, John Q Trojanowski, Murray Grossman, John A Detre, Mark A Elliott, Jon B Toledo, Weixia Liu, Stephen Pickup, Sandhitsu R Das, David A Wolk
Automatic segmentation of cortical and subcortical structures is commonplace in brain MRI literature and is frequently used as the first step towards quantitative analysis of structural and functional neuroimaging. Most approaches to brain structure segmentation are based on propagation of anatomical information from example MRI datasets, called atlases or templates, that are manually labeled by experts. The accuracy of automatic segmentation is usually validated against the "bronze" standard of manual segmentation of test MRI datasets...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28227881/a-framework-for-informing-segmentation-of-in-vivo-mri-with-information-derived-from-ex-vivo-imaging-application-in-the-medial-temporal-lobe
#18
Paul A Yushkevich, Laura Wisse, Daniel Adler, Ranjit Ittyerah, John B Pluta, John L Robinson, Theresa Schuck, John Q Trojanowski, Murray Grossman, John A Detre, Mark A Elliott, Jon B Toledo, Weixia Liu, Stephen Pickup, Sandhitsu R Das, David A Wolk, Paul A Yushkevich, Laura Wisse, Daniel Adler, Ranjit Ittyerah, John B Pluta, John L Robinson, Theresa Schuck, John Q Trojanowski, Murray Grossman, John A Detre, Mark A Elliott, Jon B Toledo, Weixia Liu, Stephen Pickup, Sandhitsu R Das, David A Wolk, John L Robinson, Jon B Toledo, Stephen Pickup, Weixia Liu, Paul A Yushkevich, Daniel Adler, John Q Trojanowski, Theresa Schuck, David A Wolk, Laura Wisse, Mark A Elliott, Sandhitsu R Das, John A Detre, John B Pluta, Ranjit Ittyerah, Murray Grossman
Automatic segmentation of cortical and subcortical structures is commonplace in brain MRI literature and is frequently used as the first step towards quantitative analysis of structural and functional neuroimaging. Most approaches to brain structure segmentation are based on propagation of anatomical information from example MRI datasets, called atlases or templates, that are manually labeled by experts. The accuracy of automatic segmentation is usually validated against the "bronze" standard of manual segmentation of test MRI datasets...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28218833/atomic-force-microscopy-thermally-assisted-microsampling-with-atmospheric-pressure-temperature-ramped-thermal-desorption-ionization-mass-spectrometry-analysis
#19
William D Hoffmann, Vilmos Kertesz, Bernadeta R Srijanto, Gary J Van Berkel
The use of atomic force microscopy controlled nanothermal analysis probes for reproducible spatially resolved thermally assisted sampling of micrometer-sized areas (ca. 11 × 17 μm wide × 2.4 μm deep) from relatively low number-average molecular weight (Mn < 3000) polydisperse thin films of poly(2-vinylpyridine) (P2VP) is presented. Following sampling, the nanothermal analysis probes were moved up from the surface and the probe temperature ramped to liberate the sampled materials into the gas phase for atmospheric pressure chemical ionization and mass spectrometric analysis...
February 20, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28192024/insulin-pumps
#20
John C Pickup
No abstract text is available yet for this article.
February 2017: Diabetes Technology & Therapeutics
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