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https://www.readbyqxmd.com/read/27915396/accurate-stone-analysis-the-impact-on-disease-diagnosis-and-treatment
#1
REVIEW
Neil S Mandel, Ian C Mandel, Ann M Kolbach-Mandel
This manuscript reviews the requirements for acceptable compositional analysis of kidney stones using various biophysical methods. High-resolution X-ray powder diffraction crystallography and Fourier transform infrared spectroscopy (FTIR) are the only acceptable methods in our labs for kidney stone analysis. The use of well-constructed spectral reference libraries is the basis for accurate and complete stone analysis. The literature included in this manuscript identify errors in most commercial laboratories and in some academic centers...
December 3, 2016: Urolithiasis
https://www.readbyqxmd.com/read/27915362/teaching-health-care-students-the-radial-arterial-puncture-procedure
#2
Kevin P Collins, Christopher J Russian, Joshua F Gonzales
The radial artery puncture is a frequently ordered medical procedure for patients requiring blood gas analysis. Deviating from the proper procedure increases the likelihood of error and jeopardizes patient safety. The teaching methodology for the radial artery puncture is rarely addressed in the medical literature. First-year respiratory care students enrolled in a clinical practice course participated in an expanded curriculum on arterial puncture technique. The new five-step curriculum included: 1) a face-to-face lecture, 2) radial artery localization, 3) blunt-tipped needle simulation, 4) manikin arm puncture, and 5) a peer assessment video...
2016: Journal of Allied Health
https://www.readbyqxmd.com/read/27915360/patient-safety-organizations-and-emergency-medical-services
#3
William J Leggio, Lee Varner, Kathryn Wire
Providing safe and error-free patient care should resonate well with all healthcare providers including emergency medical technicians. The environments and circumstances in which emergency medical services (EMS) provide patient care inevitably create risks to both the provider and patient. This article explores the concepts of patient safety, errors, near misses, adverse events, and Just Culture. Literature raises concerns about the lack of data collection on both patient and provider safety and research on these safety topics in EMS...
2016: Journal of Allied Health
https://www.readbyqxmd.com/read/27915294/insightful-directed-evolution-of-escherichia-coli-quorum-sensing-promoter-region-of-the-lsracdbfg-operon-a-tool-for-synthetic-biology-systems-and-protein-expression
#4
Pricila Hauk, Kristina Stephens, Ryan Mckay, Chelsea Ryan Virgile, Hana Ueda, Marc Ostermeier, Kyoung-Seok Ryu, Herman O Sintim, William E Bentley
Quorum sensing (QS) regulates many natural phenotypes (e.q. virulence, biofilm formation, antibiotic resistance), and its components, when incorporated into synthetic genetic circuits, enable user-directed phenotypes. We created a library of Escherichia coli lsr operon promoters using error-prone PCR (ePCR) and selected for promoters that provided E. coli with higher tetracycline resistance over the native promoter when placed upstream of the tet(C) gene. Among the fourteen clones identified, we found several mutations in the binding sites of QS repressor, LsrR...
December 1, 2016: Nucleic Acids Research
https://www.readbyqxmd.com/read/27915213/case-report-of-cholelithiasis-in-a-patient-with-type-1-gaucher-disease
#5
Afrim Avdaj, Naim Fanaj, Mirsade Osmani, Agron Bytyqi, Anila Cake
INTRODUCTION: Patients with type 1 Gaucher disease have been reported to be more likely to have cholelithiasis. PRESENTATION OF CASE: A case of cholelithiasis in a patient with type 1 Gaucher disease; which is very intriguing to show this comorbidity. The case was the only known case with this pathology in time of diagnosis in our country (Kosovo). The patient is a 21-year old girl a known case of type 1 Gaucher disease, at the age of 8 years. The patient underwent elective laparoscopic cholecystectomy...
November 11, 2016: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/27914730/quantitative-comparison-of-operative-skill-using-2-and-3-dimensional-monitors-during-laparoscopic-phantom-tasks
#6
Masayasu Nishi, Shingo Kanaji, Yoshito Otake, Hitoshi Harada, Masashi Yamamoto, Taro Oshikiri, Tetsu Nakamura, Satoshi Suzuki, Yuki Suzuki, Yuta Hiasa, Yoshinobu Sato, Yoshihiro Kakeji
BACKGROUND: The recent development of stereoscopic images using 3-dimensional monitors is expected to improve techniques for laparoscopic operation. Several studies have reported technical advantages in using 3-dimensional monitors with regard to operative accuracy and working speed, but there are few reports that analyze forceps motions by 3-dimensional optical tracking systems during standardized laparoscopic phantom tasks. We attempted to develop a 3-dimensional motion analysis system for assessing laparoscopic tasks and to clarify the efficacy of using stereoscopic images from a 3-dimensional monitor to track forceps movement during laparoscopy...
November 30, 2016: Surgery
https://www.readbyqxmd.com/read/27914209/methodological-flaws-introduce-strong-bias-into-molecular-analysis-of-microbial-populations
#7
Niclas Krakat, Reshma Anjum, Burak Demirel, Patrick Schröder
AIMS: Here we report how different cell disruption methods, PCR primers and in-silico analyses can seriously bias results from microbial population studies, with consequences for the credibility and reproducibility of the findings. Our results emphasize the pitfalls of commonly used experimental methods that can seriously weaken the interpretation of results. METHODS AND RESULTS: Four different cell lysis methods, three commonly used primer pairs and various computer-based analyses were applied to investigate the microbial diversity of a fermentation sample composed of chicken dung...
December 3, 2016: Journal of Applied Microbiology
https://www.readbyqxmd.com/read/27913837/hospitalizations-due-to-preventable-adverse-reactions-a-systematic-review
#8
REVIEW
Nidhi S Patel, Tejas K Patel, Parvati B Patel, Viren N Naik, C B Tripathi
PURPOSE: The study aimed to measure the percentage of preventable adverse drug reactions that lead to the hospitalization (PADRAd) and to explore the heterogeneity in its estimation through subgroup analysis of study characteristics. METHODS: Two investigators independently searched in electronic databases and related bibliography for prospective studies involving PADRAd. We excluded studies investigating medication errors and spontaneous and retrospective reporting...
December 2, 2016: European Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/27913340/efficient-3d-reconstruction-in-ultrasound-elastography-via-a-sparse-iteration-based-on-markov-random-fields
#9
Atul Ingle, Tomy Varghese, William Sethares
Percutaneous needle-based liver ablation procedures are becoming increasingly common for treatment of small isolated tumors in hepatocellular carcinoma patients who are not candidates for surgery. Rapid three dimensional visualization of liver ablations has potential clinical value because it can enable interventional radiologists to plan and execute needle-based ablation procedures with real time feedback. Ensuring the right volume of tissue is ablated is desirable to avoid recurrence of tumors from residual untreated cancerous cells...
November 29, 2016: IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
https://www.readbyqxmd.com/read/27913156/the-oral-spelling-profile-of-posterior-cortical-atrophy-and-the-nature-of-the-graphemic-representation
#10
Silvia Primativo, Keir X X Yong, Timothy J Shakespeare, Sebastian J Crutch
Spelling is a complex cognitive task where central and peripheral components are involved in engaging resources from many different cognitive processes. The present paper aims to both characterize the oral spelling deficit in a population of patients affected by a neurodegenerative condition and to clarify the nature of the graphemic representation within the currently available spelling models. Indeed, the nature of graphemic representation as a linear or multi-componential structure is still debated. Different hypotheses have been raised about its nature in the orthographic lexicon, with one positing that graphemes are complex objects whereby quantity and identity are separately represented in orthographic representations and can thus be selectively impaired...
November 29, 2016: Neuropsychologia
https://www.readbyqxmd.com/read/27912967/qualitative-analysis-of-copaifera-oleoresin-using-comprehensive-two-dimensional-gas-chromatography-and-gas-chromatography-with-classical-and-cold-electron-ionisation-mass-spectrometry
#11
Yong Foo Wong, Thais M Uekane, Claudia M Rezende, Humberto R Bizzo, Philip J Marriott
Improved separation of both sesquiterpenes and diterpenic acids in Copaifera multijuga Hayne oleoresin, is demonstrated by using comprehensive two-dimensional gas chromatography (GC×GC) coupled to accurate mass time-of-flight mass spectrometry (accTOFMS). GC×GC separation employs polar phases (including ionic liquid phases) as the first dimension ((1)D) column, combined with a lower polarity (2)D phase. Elution temperatures (Te) of diterpenic acids (in methyl ester form, DAME) increased as the (1)D McReynolds' polarity value of the column phase decreased...
November 22, 2016: Journal of Chromatography. A
https://www.readbyqxmd.com/read/27912798/bilateral-anomalous-drainage-of-the-posterior-divisions-of-renal-veins-into-the-azygos-venous-system-in-a-20-year-old-woman-a-case-report
#12
Pedro Pallangyo, Frederick Lyimo, Paulina Nicholaus, Stephano Masatu, Mohamed Janabi
BACKGROUND: Renal vein anomalies are relatively infrequent and generally asymptomatic. Preoperative knowledge of such variants is, however, of paramount importance in several angiographic and surgical procedures including renal venography, renal vein sampling, spermatic embolization, and renal transplantation. Inadequate knowledge and failure to recognize such anatomic variations may lead to several operative hazards including hemorrhage, nephrectomy, and even death. CASE PRESENTATION: We report a case of bilateral anomalous drainage of the posterior divisions of renal veins into the azygos venous system in a 20-year-old woman of African descent from Tanzania who presented to us with a 12-year history of recurrent anemia...
December 3, 2016: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/27911530/experimental-ten-photon-entanglement
#13
Xi-Lin Wang, Luo-Kan Chen, W Li, H-L Huang, C Liu, C Chen, Y-H Luo, Z-E Su, D Wu, Z-D Li, H Lu, Y Hu, X Jiang, C-Z Peng, L Li, N-L Liu, Yu-Ao Chen, Chao-Yang Lu, Jian-Wei Pan
We report the first experimental demonstration of quantum entanglement among ten spatially separated single photons. A near-optimal entangled photon-pair source was developed with simultaneously a source brightness of ∼12  MHz/W, a collection efficiency of ∼70%, and an indistinguishability of ∼91% between independent photons, which was used for a step-by-step engineering of multiphoton entanglement. Under a pump power of 0.57 W, the ten-photon count rate was increased by about 2 orders of magnitude compared to previous experiments, while maintaining a state fidelity sufficiently high for proving the genuine ten-particle entanglement...
November 18, 2016: Physical Review Letters
https://www.readbyqxmd.com/read/27911019/the-impact-and-measurement-of-social-dysfunction-in-late-life-depression-an-evaluation-of-current-methods-with-a-focus-on-wearable-technology
#14
REVIEW
Sophie Hodgetts, Peter Gallagher, Daniel Stow, I Nicol Ferrier, John T O'Brien
OBJECTIVE: Depression is known to negatively impact social functioning, with patients commonly reporting difficulties maintaining social relationships. Moreover, a large body of evidence suggests poor social functioning is not only present in depression but that social functioning is an important factor in illness course and outcome. In addition, good social relationships can play a protective role against the onset of depressive symptoms, particularly in late-life depression. However, the majority of research in this area has employed self-report measures of social function...
December 2, 2016: International Journal of Geriatric Psychiatry
https://www.readbyqxmd.com/read/27910583/robust-analysis-of-trends-in-noisy-tokamak-confinement-data-using-geodesic-least-squares-regression
#15
G Verdoolaege, A Shabbir, G Hornung
Regression analysis is a very common activity in fusion science for unveiling trends and parametric dependencies, but it can be a difficult matter. We have recently developed the method of geodesic least squares (GLS) regression that is able to handle errors in all variables, is robust against data outliers and uncertainty in the regression model, and can be used with arbitrary distribution models and regression functions. We here report on first results of application of GLS to estimation of the multi-machine scaling law for the energy confinement time in tokamaks, demonstrating improved consistency of the GLS results compared to standard least squares...
November 2016: Review of Scientific Instruments
https://www.readbyqxmd.com/read/27910410/absolute-calibration-of-the-omega-streaked-optical-pyrometer-for-temperature-measurements-of-compressed-materials
#16
M C Gregor, R Boni, A Sorce, J Kendrick, C A McCoy, D N Polsin, T R Boehly, P M Celliers, G W Collins, D E Fratanduono, J H Eggert, M Millot
Experiments in high-energy-density physics often use optical pyrometry to determine temperatures of dynamically compressed materials. In combination with simultaneous shock-velocity and optical-reflectivity measurements using velocity interferometry, these experiments provide accurate equation-of-state data at extreme pressures (P > 1 Mbar) and temperatures (T > 0.5 eV). This paper reports on the absolute calibration of the streaked optical pyrometer (SOP) at the Omega Laser Facility. The wavelength-dependent system response was determined by measuring the optical emission from a National Institute of Standards and Technology-traceable tungsten-filament lamp through various narrowband (40-nm-wide) filters...
November 2016: Review of Scientific Instruments
https://www.readbyqxmd.com/read/27910337/laser-pumped-4-he-magnetometer-with-light-shift-suppression
#17
Zaisheng Lin, He Wang, Xiang Peng, Teng Wu, Hong Guo
We report a laser-pumped (4)He atomic magnetometer with light shift suppression through the atomic sensor itself. A linearly polarized light is used to optically align the (4)He metastable atoms and we monitor the magneto-optical double resonance (MODR) signals produced by the left- and right-circularly orthogonal components. It is shown that light shift leads to the atomic alignment to orientation conversion effect, and thus, the difference between the two MODR signals. One of these two MODR signals is locked at the Larmor frequency and is used to measure the ambient magnetic field, while the differential signal is, simultaneously, fed back to suppress the light shift...
November 2016: Review of Scientific Instruments
https://www.readbyqxmd.com/read/27910313/ion-temperature-and-toroidal-rotation-in-jet-s-low-torque-plasmas
#18
J Bernardo, M F F Nave, C Giroud, S Reyes Cortes, João P S Bizarro
This paper reports on the procedure developed as the best method to provide an accurate and reliable estimation of the ion temperature Ti and the toroidal velocity vϕ from Charge-eXchange Recombination Spectroscopy (CXRS) data from intrinsic rotation experiments at the Joint European Torus with the carbon wall. The low impurity content observed in such plasmas, resulting in low active CXRS signal, alongside low Doppler shifts makes the determination of Ti and vϕ particularly difficult. The beam modulation method will be discussed along with the measures taken to increase photon statistics and minimise errors from the absolute calibration and magneto-hydro-dynamics effects that may impact the CXRS passive emission...
November 2016: Review of Scientific Instruments
https://www.readbyqxmd.com/read/27909995/solithromycin-a-novel-fluoroketolide-for-the-treatment-of-community-acquired-bacterial-pneumonia
#19
REVIEW
George G Zhanel, Erika Hartel, Heather Adam, Sheryl Zelenitsky, Michael A Zhanel, Alyssa Golden, Frank Schweizer, Bala Gorityala, Philippe R S Lagacé-Wiens, Andrew J Walkty, Alfred S Gin, Daryl J Hoban, Joseph P Lynch, James A Karlowsky
Solithromycin is a novel fluoroketolide developed in both oral and intravenous formulations to address increasing macrolide resistance in pathogens causing community-acquired bacterial pneumonia (CABP). When compared with its macrolide and ketolide predecessors, solithromycin has several structural modifications which increase its ribosomal binding and reduce its propensity to known macrolide resistance mechanisms. Solithromycin, like telithromycin, affects 50S ribosomal subunit formation and function, as well as causing frame-shift errors during translation...
December 1, 2016: Drugs
https://www.readbyqxmd.com/read/27909830/the-inventory-of-callous-unemotional-traits-icu-in-children-reliability-and-heritability
#20
Ashlee A Moore, Dever Carney, Elizabeth Moroney, Laura Machlin, Kenneth E Towbin, Melissa A Brotman, Daniel S Pine, Ellen Leibenluft, Roxann Roberson-Nay, John M Hettema
Callous-unemotional (CU) traits comprise the core symptoms of psychopathy, yet no study has estimated the heritability of CU traits in a community sample of children using an instrument designed solely to assess CU traits. The current study uses data from 339 twin pairs aged 9-14 to examine the reliability and heritability of the parent-report Inventory of Callous-unemotional Traits (ICU) at two assessments approximately 3 weeks apart. Time-specific measurement error was taken into account to obtain a more accurate estimate of the heritability reflecting the latent liability to CU traits...
December 1, 2016: Behavior Genetics
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