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https://www.readbyqxmd.com/read/28109033/a-quality-improvement-initiative-to-decrease-the-rate-of-solitary-blood-cultures-in-the-emergency-department
#1
Joseph Choi, Sahand Ensafi, Lucas Brien Chartier, Oliver Van Praet
OBJECTIVES: Best practice guidelines recommend that at least two sets of blood cultures (BCs) be sent when blood cultures are required. However, high rates of solitary BCs are still common in the emergency department (ED). The aim of this study was to evaluate the efficacy of different quality improvement initiatives aimed at reducing the rate of solitary blood cultures being sent to the lab on patients ultimately discharged from our ED. METHODS: This was a multi-centre, multi-phase, prospective study evaluating a comprehensive education-based intervention and a second intervention that combined a computerized forcing function along with a brief education-based intervention...
January 20, 2017: Academic Emergency Medicine: Official Journal of the Society for Academic Emergency Medicine
https://www.readbyqxmd.com/read/28108675/paired-assessment-of-liver-telomere-lengths-in-hepatocellular-cancer-is-a-reliable-predictor-of-disease-persistence
#2
Wen-Du Feng, De-Cai Yu, Xian-Biao Shi, Bing-Hua Li, Ou-Yang Luo, Chen Yan, Yi-Tao Ding
In the present study, we used a small series of highly defined patients, where we had matched timed peripheral blood samples, as well as paired liver biopsies obtained during collection of blood samples from patients with diagnosed hepatocellular carcinoma (HCC) and compared the correlation between the changes of telomere lengths in these defined samples. Patients included had either HCC alone or in conjunction with either pre-existing hepatitis B virus (HBV) or hepatitis C virus (HCV) infection. PCR-based assay incorporating primers to the telomeric hexamer repeats to polymerize and detect telomeric DNA was used...
January 20, 2017: Bioscience Reports
https://www.readbyqxmd.com/read/28108481/clinically-insignificant-trunnionosis-in-large-diameter-metal-on-polyethylene-total-hip-arthroplasty
#3
H S Hothi, D Kendoff, C Lausmann, J Henckel, T Gehrke, J Skinner, A Hart
OBJECTIVES: Mechanical wear and corrosion at the head-stem junction of total hip arthroplasties (THAs) (trunnionosis) have been implicated in their early revision, most commonly in metal-on-metal (MOM) hips. We can isolate the role of the head-stem junction as the predominant source of metal release by investigating non-MOM hips; this can help to identify clinically significant volumes of material loss and corrosion from these surfaces. METHODS: In this study we examined a series of 94 retrieved metal-on-polyethylene (MOP) hips for evidence of corrosion and material loss at the taper junction using a well published visual grading method and an established roundness-measuring machine protocol...
January 2017: Bone & Joint Research
https://www.readbyqxmd.com/read/28108080/prediction-of-gradient-retention-data-for-hydrophilic-interaction-liquid-chromatographic-separation-of-native-and-fluorescently-labeled-oligosaccharides
#4
Nikola Vaňková, Petr Česla
In this work, we have investigated the predictive properties of mixed-mode retention model and oligomeric mixed-mode model, taking into account the contribution of monomeric units to the retention, in hydrophilic interaction liquid chromatography. The gradient retention times of native maltooligosaccharides and their fluorescent derivatives were predicted in the oligomeric series with number of monomeric glucose units in the range from two to seven. The maltooligosaccharides were separated on a packed column with carbamoyl-bonded silica stationary phase and 15 gradient profiles with different initial and final mobile phase composition were used with the gradient times 5; 7...
January 16, 2017: Journal of Chromatography. A
https://www.readbyqxmd.com/read/28107940/incorporation-of-zeolitic-imidazolate-framework-zif-8-derived-nanoporous-carbons-in-methacrylate-polymeric-monoliths-for-capillary-electrochromatography
#5
Enrique Javier Carrasco-Correa, Andrea Martínez-Vilata, José Manuel Herrero-Martínez, José B Parra, Fernando Maya, Victor Cerdà, Carlos Palomino Cabello, Gemma Turnes Palomino, Frantisek Svec
A series of metal organic frameworks-derived nanoporous carbons originating from zeolitic imidazolate framework-8 (ZIF-8) crystals as precursors have been prepared via varying the preparation conditions. The ZIF-8-derived carbons were subsequently admixed in the methacrylate monomers containing polymerization mixtures and polymerized to obtain monolithic columns for capillary electrochromatography (CEC). The effect of particle size and content of the ZIF-8-derived carbon materials in the polymerization mixture on the performance of the hybrid monolithic columns was investigated in detail...
March 1, 2017: Talanta
https://www.readbyqxmd.com/read/28107871/forecasting-the-number-of-zoonotic-cutaneous-leishmaniasis-cases-in-south-of-fars-province-iran-using-seasonal-arima-time-series-method
#6
Mehdi Sharafi, Haleh Ghaem, Hamid Reza Tabatabaee, Hossein Faramarzi
OBJECTIVE: To predict the trend of cutaneous leishmaniasis and assess the relationship between the disease trend and weather variables in south of Fars province using Seasonal Autoregressive Integrated Moving Average (SARIMA) model. METHODS: The trend of cutaneous leishmaniasis was predicted using Mini tab software and SARIMA model. Besides, information about the disease and weather conditions was collected monthly based on time series design during January 2010 to March 2016...
January 2017: Asian Pacific Journal of Tropical Medicine
https://www.readbyqxmd.com/read/28107629/discovery-of-1-2-3-triazole-derivatives-for-multimodality-pet-ct-cryoimaging-of-myelination-in-the-central-nervous-system
#7
Chunying Wu, Brendan Eck, Sheng Zhang, Junqing Zhu, Anand Dev Tiwari, Yifan Zhang, Yunjie Zhu, Jinming Zhang, Bin Wang, Xizhen Wang, Xu Wang, Jingqiang You, Jian Wang, Yihui Guan, Xingdang Liu, Xin Yu, Bruce D Trapp, Robert Miller, Jerry Silver, David Wilson, Yanming Wang
Myelin pathology is present in many neurological conditions such as multiple sclerosis (MS) and traumatic spinal cord injury (SCI). To facilitate development of novel therapies aimed at myelin repair, we set out to develop imaging agents that permit direct quantification of myelination in vivo. In this work, we designed and synthesized a series of fluorescent fluorinated myelin imaging agents that can be used for in vivo positron emission tomography (PET) imaging combined with subsequent post-mortem fluorescent cryoimaging...
January 20, 2017: Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28107615/suicide-attempts-and-their-interrelation-with-the-economic-crisis-in-chania-greece-a-time-series-analysis-of-the-period-2008-2015
#8
Emmanouil S Benioudakis, Vyronas Lykiardopoulos, Vaggelis Georgiou, Maria D Archontaki, Alexandra Tsourounaki, Georgia Botonaki, Aikaterini Batzou, Tsampikos Symiakos, Theodora Seliniotaki, Athanasios Armagos, Aikaterini Pentari, Konstantinos Moiradorakis, Eleanna Darakis, Maria Melissari-Tzanakaki
Background: Greece has been in the grip of a severe economic crisis since 2008. It is well known that suicide attempts and actual suicides increase during periods of recession and austerity. The main aim of this study was to examine the economic crisis in relation to recorded suicide attempts in Chania, Greece, from 2008 to 2015, also taking unemployment rates into consideration. Methods: During the research period from January 1, 2008, to December 31, 2015, 436 suicide attempts (females: n = 305 and males: n = 131) were recorded in the archives of the General Hospital of Chania...
January 19, 2017: Primary Care Companion to CNS Disorders
https://www.readbyqxmd.com/read/28107424/anchoring-the-self-to-the-body-in-bilateral-vestibular-failure
#9
Diane Deroualle, Michel Toupet, Christian van Nechel, Ulla Duquesne, Charlotte Hautefort, Christophe Lopez
Recent findings suggest that vestibular information plays a significant role in anchoring the self to the body. Out-of-body experiences of neurological origin are frequently associated with vestibular sensations, and galvanic vestibular stimulation in healthy participants anchors the self to the body. Here, we provide the first objective measures of anchoring the self to the body in chronic bilateral vestibular failure (BVF). We compared 23 patients with idiopathic BVF to 23 healthy participants in a series of experiments addressing several aspects of visuo-spatial perspective taking and embodiment...
2017: PloS One
https://www.readbyqxmd.com/read/28107414/multifractality-and-network-analysis-of-phase-transition
#10
Longfeng Zhao, Wei Li, Chunbin Yang, Jihui Han, Zhu Su, Yijiang Zou
Many models and real complex systems possess critical thresholds at which the systems shift dramatically from one sate to another. The discovery of early-warnings in the vicinity of critical points are of great importance to estimate how far the systems are away from the critical states. Multifractal Detrended Fluctuation analysis (MF-DFA) and visibility graph method have been employed to investigate the multifractal and geometrical properties of the magnetization time series of the two-dimensional Ising model...
2017: PloS One
https://www.readbyqxmd.com/read/28106997/time-and-nanoparticle-concentration-affect-the-extractability-of-cu-from-cuo-np-amended-soil
#11
Xiaoyu Gao, Eleanor Spielman-Sun, Sónia Morais Rodrigues, Elizabeth A Casman, Gregory V Lowry
We assess the effect of CuO nanoparticle (NP) concentration and soil aging time on the extractability of Cu from a standard sandy soil (Lufa 2.1). The soil was dosed with CuO NP or Cu(NO3)2 at 10 mg Cu kg-1 soil (mg/kg) or 100 mg/kg total copper, then extracted using either 0.01M CaCl2 or 0.005M DTPA (pH 7.6) extraction fluids at selected times over 31 days. For 100 mg/kg CuO NP, the amount of DTPA-extractable Cu in soil increased from 3 wt% immediately after mixing to 38 wt% after 31 days. In contrast, the extractability of Cu(NO3)2 was highest initially, decreasing with time...
January 20, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28106674/open-surgical-release-of-posttraumatic-elbow-contracture-in-children-and-adolescents
#12
Samantha L Piper, Lisa L Lattanza, Tony S Shen, Lindley B Wall, Charles A Goldfarb
BACKGROUND: Posttraumatic elbow contractures in children and adolescents are challenging to manage, and studies investigating surgical treatment are limited by the rarity of this condition. Small case series have shown variable gains in immediate and long-term elbow arc of motion after open surgical release. We reviewed our experience with open surgical release of posttraumatic elbow contracture in patients <21 years old at 2 institutions. METHODS: A retrospective chart review identified patients who underwent posttraumatic open elbow contracture release by 2 surgeons at 2 institutions between 2006 and 2013...
January 18, 2017: Journal of Pediatric Orthopedics
https://www.readbyqxmd.com/read/28106608/a-perioperative-systems-design-to-improve-intraoperative-glucose-monitoring-is-associated-with-a-reduction-in-surgical-site-infections-in-a-diabetic-patient-population
#13
Jesse M Ehrenfeld, Jonathan P Wanderer, Maxim Terekhov, Brian S Rothman, Warren S Sandberg
BACKGROUND: Diabetic patients receiving insulin should have periodic intraoperative glucose measurement. The authors conducted a care redesign effort to improve intraoperative glucose monitoring. METHODS: With approval from Vanderbilt University Human Research Protection Program (Nashville, Tennessee), the authors created an automatic system to identify diabetic patients, detect insulin administration, check for recent glucose measurement, and remind clinicians to check intraoperative glucose...
January 19, 2017: Anesthesiology
https://www.readbyqxmd.com/read/28106463/long-term-results-after-arthroscopic-repair-of-isolated-subscapularis-tears
#14
Gernot Seppel, Johannes E Plath, Christopher Völk, Wolfgang Seiberl, Stefan Buchmann, Simone Waldt, Andreas B Imhoff, Sepp Braun
BACKGROUND: Although some reports have presented short- to midterm results after arthroscopic repair of isolated subscapularis (SSC) tendon tears, long-term evaluation is still lacking. HYPOTHESIS: Long-term results after arthroscopic repair of isolated SSC tears are comparable with the functional and radiological short- to midterm outcomes described in the literature. STUDY DESIGN: Case series, Level of evidence, 4. METHODS: This study assessed 17 patients (5 females and 12 males; mean age, 45...
December 1, 2016: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28106256/evaluation-of-atomic-pressure-in-the-multiple-time-step-integration-algorithm
#15
Yoshimichi Andoh, Noriyuki Yoshii, Atsushi Yamada, Susumu Okazaki
In molecular dynamics (MD) calculations, reduction in calculation time per MD loop is essential. A multiple time-step (MTS) integration algorithm, the RESPA (Tuckerman and Berne, J. Chem. Phys. 1992, 97, 1990-2001), enables reductions in calculation time by decreasing the frequency of time-consuming long-range interaction calculations. However, the RESPA MTS algorithm involves uncertainties in evaluating the atomic interaction-based pressure (i.e., atomic pressure) of systems with and without holonomic constraints...
January 20, 2017: Journal of Computational Chemistry
https://www.readbyqxmd.com/read/28106224/polaronic-transport-in-iron-phosphate-glasses-containing-hfo2-and-ceo2
#16
Ana Šantić, Radha D Banhatti, Luka Pavić, Hüseyin Ertap, Mustafa Yüksek, Mevlüt Karabulut, Andrea Moguš-Milanković
The electrical and dielectric properties of three series of glasses, xHfO2-(40 - x)Fe2O3-60P2O5, 0 ≤ x ≤ 8 mol%, xCeO2-(40 - x)Fe2O3-60P2O5, 0 ≤ x ≤ 8 mol%, and xHfO2-(38 - x)Fe2O3-2B2O3-60P2O5 2 ≤ x ≤ 6 mol%, have been investigated by impedance spectroscopy over a wide frequency and temperature range. As expected, these glasses exhibit polaronic conductivity which strongly depends on the fraction of ferrous ions, Fe(2+)/Fetot. Following a detailed discussion on the DC conductivity, we use the MIGRATION concept to model their conductivity spectra...
January 20, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28106053/risk-of-gastrointestinal-bleeding-among-dabigatran-users-a-self-controlled-case-series-analysis
#17
Wenze Tang, Hsien-Yen Chang, Meijia Zhou, Sonal Singh
This article aims to evaluate the real world risk of gastrointestinal bleeding among users naïve to dabigatran. We adopted a self-controlled case series design. We sampled 1215 eligible adult participants who were continuous insured users between July 1, 2010 and March 31, 2012 with use of dabigatran and at least one gastrointestinal bleeding episode. We used a conditional Poisson regression to estimate incidence rate ratios. The population consisted of 64.69% of male and 60.25% patients equal to or greater than age 65 at start of observation...
January 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28105655/imperfect-de-convolution-may-introduce-spurious-psychophysiological-interactions-and-how-to-avoid-it
#18
Xin Di, Richard C Reynolds, Bharat B Biswal
Psychophysiological interaction (PPI) is a widely used regression-based method to study connectivity changes in different experimental conditions. A PPI effect is generated by point-by-point multiplication of a psychological variable (experimental design) and a physiological variable (time series of a seed region). If the psychological variable is non-centered with a constant component, the constant component will add a physiological variable to the PPI term. The physiological component would in theory be accounted for by the physiological main effect in the model...
January 20, 2017: Human Brain Mapping
https://www.readbyqxmd.com/read/28104787/binding-characteristics-of-galectin-3-fusion-proteins
#19
Sophia Böcker, Lothar Elling
Galectin-3 modulates cell adhesion and signaling events by specific binding and cross-linking galactoside containing carbohydrate ligands. Proteolytic cleavage by metalloproteinases yields in vivo N-terminally truncated galectin-3 still bearing the carbohydrate recognition domain. Truncated galectin-3 has been demonstrated to act in vivo as a negative inhibitor of galectin-3 due to higher affinity for carbohydrate ligands. We here present our studies on a series of twelve human galectin-3 protein constructs...
January 19, 2017: Glycobiology
https://www.readbyqxmd.com/read/28104512/time-series-models-of-environmental-exposures-good-predictions-or-good-understanding
#20
Adrian G Barnett, Dimity Stephen, Cunrui Huang, Martin Wolkewitz
Time series data are popular in environmental epidemiology as they make use of the natural experiment of how changes in exposure over time might impact on disease. Many published time series papers have used parameter-heavy models that fully explained the second order patterns in disease to give residuals that have no short-term autocorrelation or seasonality. This is often achieved by including predictors of past disease counts (autoregression) or seasonal splines with many degrees of freedom. These approaches give great residuals, but add little to our understanding of cause and effect...
January 16, 2017: Environmental Research
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