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https://www.readbyqxmd.com/read/28214427/intense-2-7%C3%AE-m-emission-in-er-3-doped-zinc-fluoride-glass
#1
Feifei Huang, Yanyan Guo, Ying Tian, Shiqing Xu, Junjie Zhang
A novel erbium ion doped zinc fluoride glass was prepared. 2.7μm emission and transmittance properties together with thermal ability were investigated. An enhanced 2.7μm emission was observed by introducing ZnF2 in the ZrF4-based fluoride glass. Meanwhile, the J-O parameters and branching ratios (β) of Er(3+)-doped zinc fluoride glass were calculated and analyzed. The present Er(3+)-doped zinc fluoride glass with large emission cross-section (0.92×10(-20)cm(2)) and long decay lifetime (2.05ms) at 2.7μm indicates that it have very promising applications for solid state lasers around 3μm...
February 10, 2017: Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
https://www.readbyqxmd.com/read/28214400/association-between-bisphosphonate-therapy-and-outcomes-from-rehabilitation-in-older-people
#2
James A Goodbrand, Lloyd D Hughes, Lynda Cochrane, Peter T Donnan, Mark McGilchrist, Helen Frost, Marion E T McMurdo, Miles D Witham
BACKGROUND: Bisphosphonate therapy may have actions beyond bone, including effects on cardiovascular, immune and muscle function. We tested whether bisphosphonate treatment is associated with improved outcomes in older people undergoing inpatient rehabilitation. METHODS: Analysis of prospectively collected, linked routine clinical datasets. Participants were divided into never users of bisphosphonates, use prior to rehabilitation only, use after rehabilitation only, and current users (use before and after rehabilitation)...
February 11, 2017: Archives of Gerontology and Geriatrics
https://www.readbyqxmd.com/read/28214388/modified-automatic-term-selection-v2-a-faster-algorithm-to-calculate-inelastic-scattering-cross-sections
#3
Ján Rusz
We present a new algorithm for calculating inelastic scattering cross-section for fast electrons. Compared to the previous Modified Automatic Term Selection (mats) algorithm (Rusz et al. [18]), it has far better convergence properties in zone axis calculations and it allows to identify contributions of individual atoms. One can think of it as a blend of mats algorithm and a method described by Weickenmeier and Kohl [10].
January 25, 2017: Ultramicroscopy
https://www.readbyqxmd.com/read/28214371/the-risk-of-depression-suicidal-ideation-and-suicide-attempt-in-patients-with-psoriasis-psoriatic-arthritis-or-ankylosing-spondylitis
#4
J J Wu, R B Penfold, P Primatesta, T K Fox, C Stewart, S P Reddy, A Egeberg, J Liu, G Simon
BACKGROUND: Sparse information is available concerning mental health issues in psoriasis, psoriatic arthritis (PsA), and ankylosing spondylitis (AS) patients. OBJECTIVE: To estimate risk of depression, suicidal ideation, and suicide attempt in patients with psoriasis, PsA, and AS, respectively, compared with the general population. METHODS: This population-based cohort study analyzed 36,214 psoriasis patients, 5,138 PsA patients, and 1,878 AS patients who were frequency-matched with a general population cohort...
February 18, 2017: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/28214369/diagnostic-accuracy-of-history-physical-exam-laboratory-tests-and-point-of-care-ultrasound-for-pediatric-acute-appendicitis-in-the-emergency-department-a-systematic-review-and-meta-analysis
#5
Roshanak Benabbas, Mark Hanna, Jay Shah, Richard Sinert
BACKGROUND: Acute appendicitis (AA) is the most common surgical emergency in children. Accurate and timely diagnosis is crucial but challenging due to atypical presentations and the inherent difficulty of obtaining a reliable history and physical examination in younger children. OBJECTIVES: To determine the utility of history, physical exam, laboratory tests, Pediatric Appendicitis Score (PAS) and Emergency Department-Point-of-Care Ultrasound (ED-POCUS) in the diagnosis of AA in ED pediatric patients...
February 18, 2017: Academic Emergency Medicine: Official Journal of the Society for Academic Emergency Medicine
https://www.readbyqxmd.com/read/28214327/improved-exposure-estimation-in-soil-screening-and-clean-up-criteria-for-volatile-organic-chemicals
#6
George E DeVaull
Soil clean-up criteria define acceptable concentrations of organic chemical constituents for exposed humans. These criteria sum the estimated soil exposure over multiple pathways. Assumptions for ingestion, dermal contact, and dust exposure generally presume a chemical persists in surface soils at a constant concentration level for the entire exposure duration. For volatile chemicals this is an unrealistic assumption. A calculation method is presented for surficial soil criteria which include volatile depletion of chemical for these uptake pathways...
February 18, 2017: Integrated Environmental Assessment and Management
https://www.readbyqxmd.com/read/28214295/blood-flow-restriction-increases-metabolic-stress-but-decreases-muscle-activation-during-high-load-resistance-exercise
#7
Emerson L Teixeira, Renato Barroso, Carla Silva-Batista, Gilberto C Laurentino, Jeremy P Loenneke, Hamilton Roschel, Carlos Ugrinowitsch, Valmor Tricoli
INTRODUCTION: We investigated differences in metabolic stress (lactate) and muscle activation (electromyography) when high load exercise is compared to a condition where blood flow restriction (BFR) is applied during the exercise or during the rest interval. METHODS: Twelve participants performed high load resistance exercise with BFR during the intervals (BFR-I), during the set (BFR-S) and without BFR (HL). Each condition consisted of 3 sets of 8 repetitions with knee-extension at 70% of one-repetition-maximum...
February 18, 2017: Muscle & Nerve
https://www.readbyqxmd.com/read/28214292/prescription-profile-of-pyridostigmine-use-in-a-population-of-patients-with-myasthenia-gravis
#8
Jorge Enrique Machado-Alba, Luis Felipe Calvo-Torres, Andrés Gaviria-Mendoza, César Augusto Mejía-Vélez
INTRODUCTION: We determined the pyridostigmine prescription pattern in a population of patients with myasthenia gravis. METHODS: A descriptive cross-sectional study was done using a prescription database of 3.5 million individuals from which patients diagnosed with myasthenia gravis (MG) and for whom pyridostigmine was prescribed. RESULTS: A total of 306 outpatients with MG were found, and 258 were receiving pyridostigmine, mean age, 53.0±18...
February 18, 2017: Muscle & Nerve
https://www.readbyqxmd.com/read/28214280/current-guidelines-do-not-sufficiently-discriminate-venous-thromboembolism-risk-in-urology
#9
Kristen McAlpine, Rodney H Breau, Ranjeeta Mallick, Sonya Cnossen, Ilias Cagiannos, Christopher Morash, Marc Carrier, Luke T Lavallée
PURPOSE: Venous thromboembolism (VTE) is the leading cause of noncancer death following major cancer surgery. Current thromboprophylaxis guidelines do not address procedure-specific risk of venous thromboembolism for urological patients. This project was created to determine the risk and timing of VTE after major urological surgery and to evaluate if surgical procedure was an independent risk factor for VTE after adjusting for previously established risk factors. MATERIAL AND METHODS: The American College of Surgeons׳ National Surgical Quality Improvement Program was used to create a cohort of patients who received major abdominal or pelvic urologic surgery between 2006 and 2014...
February 14, 2017: Urologic Oncology
https://www.readbyqxmd.com/read/28214256/is-there-a-threshold-value-of-hemoglobin-a1c-that-predicts-risk-of-infection-following-primary-total-hip-arthroplasty
#10
Jourdan M Cancienne, Brian C Werner, James A Browne
BACKGROUND: There remains little evidence to support a perioperative hemoglobin A1c (HbA1c) level that could serve as a threshold for a significantly increased risk of deep postoperative infection in patients with diabetes mellitus (DM) following total hip arthroplasty (THA). METHODS: A national administrative database was queried for patients who underwent primary THA with DM. Patients with an HbA1c level within 3 months of surgery were identified and were stratified based on HbA1c level in 0...
January 24, 2017: Journal of Arthroplasty
https://www.readbyqxmd.com/read/28214228/coronary-artery-stent-evaluation-with-model-based-iterative-reconstruction-at-coronary-ct-angiography
#11
Fuminari Tatsugami, Toru Higaki, Hiroaki Sakane, Wataru Fukumoto, Yoko Kaichi, Makoto Iida, Yasutaka Baba, Masao Kiguchi, Yasuki Kihara, So Tsushima, Kazuo Awai
RATIONALE AND OBJECTIVES: This study aims to compare the image quality of coronary artery stent scans on computed tomography images reconstructed with forward projected model-based iterative reconstruction solution (FIRST) and adaptive iterative dose reduction 3D (AIDR 3D). MATERIALS AND METHODS: Coronary computed tomography angiography scans of 23 patients with 32 coronary stents were used. The images were reconstructed with AIDR 3D and FIRST. We generated computed tomography attenuation profiles across the stents and measured the width of the edge rise distance and the edge rise slope (ERS)...
February 14, 2017: Academic Radiology
https://www.readbyqxmd.com/read/28214227/automated-breast-density-computation-in-digital-mammography-and-digital-breast-tomosynthesis-influence-on-mean-glandular-dose-and-birads-density-categorization
#12
Maria Castillo-García, Margarita Chevalier, Julia Garayoa, Alejandro Rodriguez-Ruiz, Diego García-Pinto, Julio Valverde
RATIONALE AND OBJECTIVES: The study aimed to compare the breast density estimates from two algorithms on full-field digital mammography (FFDM) and digital breast tomosynthesis (DBT) and to analyze the clinical implications. MATERIALS AND METHODS: We selected 561 FFDM and DBT examinations from patients without breast pathologies. Two versions of a commercial software (Quantra 2D and Quantra 3D) calculated the volumetric breast density automatically in FFDM and DBT, respectively...
February 14, 2017: Academic Radiology
https://www.readbyqxmd.com/read/28214193/quantification-of-the-overall-measurement-uncertainty-associated-with-the-passive-moss-biomonitoring-technique-sample-collection-and-processing
#13
J R Aboal, M T Boquete, A Carballeira, A Casanova, S Debén, J A Fernández
In this study we examined 6080 data gathered by our research group during more than 20 years of research on the moss biomonitoring technique, in order to quantify the variability generated by different aspects of the protocol and to calculate the overall measurement uncertainty associated with the technique. The median variance of the concentrations of different pollutants measured in moss tissues attributed to the different methodological aspects was high, reaching values of 2851 (ng·g(-1))(2) for Cd (sample treatment), 35...
February 14, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28214186/characteristics-and-prognosis-of-japanese-colorectal-cancer-patients-the-biobank-japan-project
#14
Akiko Tamakoshi, Koshi Nakamura, Shigekazu Ukawa, Emiko Okada, Makoto Hirata, Akiko Nagai, Koichi Matsuda, Yoichiro Kamatani, Kaori Muto, Yutaka Kiyohara, Zentaro Yamagata, Toshiharu Ninomiya, Michiaki Kubo, Yusuke Nakamura
BACKGROUND: Colorectal cancer is the third most common cancer worldwide, and in Japan, it is estimated that about 10% of men and 8% of women will be diagnosed with colorectal cancer during their lifetime. METHODS: We focused on 5864 participants (3699 men and 2165 women) who had colorectal cancer and were registered with BioBank Japan (BBJ) between April 2003 and March 2008. Characteristics of colon and rectal cancer patients were calculated separately. Among the enrolled patients registered in BBJ within 90 days after diagnosis, we also calculated the 5-year cumulative and relative survival rates, and estimated the effect of lifestyle factors on all-cause mortality...
February 14, 2017: Journal of Epidemiology
https://www.readbyqxmd.com/read/28214185/characteristics-of-patients-with-liver-cancer-in-the-biobank-japan-project
#15
Shigekazu Ukawa, Emiko Okada, Koshi Nakamura, Makoto Hirata, Akiko Nagai, Koichi Matsuda, Zentaro Yamagata, Yoichiro Kamatani, Toshiharu Ninomiya, Yutaka Kiyohara, Kaori Muto, Michiaki Kubo, Yusuke Nakamura, Akiko Tamakoshi
BACKGROUND: Liver cancer is the fifth cause of cancer-related deaths in Japan. The BioBank Japan (BBJ) project included 200,000 patients with 47 diseases and samples; their clinical information can be used for further studies. METHODS: Patients diagnosed with liver cancer (n = 1733; 1316 men, 417 women) were included. Histology, patient characteristics, clinical characteristics, and causes of death were collected. Cumulative and relative survival rates for liver cancer were calculated...
February 14, 2017: Journal of Epidemiology
https://www.readbyqxmd.com/read/28214150/self-efficacy-for-deprescribing-a-survey-for-health-care-professionals-using-evidence-based-deprescribing-guidelines
#16
Barbara Farrell, Lisa Richardson, Lalitha Raman-Wilms, David de Launay, Mhd Wasem Alsabbagh, James Conklin
BACKGROUND: Although polypharmacy is associated with significant morbidity, deprescribing can be challenging. In particular, clinicians express difficulty with their ability to deprescribe (i.e. reduce or stop medications that are potentially inappropriate). Evidence-based deprescribing guidelines are designed to help clinicians take action on reducing or stopping medications that may be causing more harm than benefit. OBJECTIVES: Determine if implementation of evidence-based guidelines increases self-efficacy for deprescribing proton pump inhibitor (PPI), benzodiazepine receptor agonist (BZRA) and antipsychotic (AP) drug classes...
January 28, 2017: Research in Social & Administrative Pharmacy: RSAP
https://www.readbyqxmd.com/read/28214119/persistent-organic-pollutants-in-the-olifants-river-basin-south-africa-bioaccumulation-and-trophic-transfer-through-a-subtropical-aquatic-food-web
#17
Vera Verhaert, Nadine Newmark, Wendy D'Hollander, Adrian Covaci, Wynand Vlok, Victor Wepener, Abraham Addo-Bediako, Antoinette Jooste, Johannes Teuchies, Ronny Blust, Lieven Bervoets
This study investigates the trophic transfer of persistent organic pollutants (POPs: PCBs, PBDEs, OCPs and PFASs) in the subtropical aquatic ecosystem of the Olifants River Basin (South Africa) by means of trophic magnification factors (TMFs). Relative trophic levels were determined by stable isotope analysis. POP levels in surface water, sediment and biota were low. Only ∑DDTs levels in fish muscle (<LOQ-61ng/g ww) were comparable or higher than values from other temperate and tropical regions. Significant positive relationships between relative trophic level and PCB, DDT and HCH concentrations were observed so trophic levels play an important role in the movement of contaminants through the food web...
February 14, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28214110/pediatric-echocardiographic-nomograms-what-has-been-done-and-what-still-needs-to-be-done
#18
REVIEW
Massimiliano Cantinotti, Shelby Kutty, Eliana Franchi, Marco Paterni, Marco Scalese, Giorgio Iervasi, Martin Koestenberger
Nomograms are essential tools for quantification in pediatric echocardiography. In the last few years, multiple sources highlight that nomograms employed for decades presented significant numerical and methodological limitations. As a result, widely different ranges of normality were generated, thus creating confusion in estimation of several cardiac diseases. New nomograms have recently been generated, overcoming some of the gaps of previous research: wider sample sizes (including neonates/infants), solid statistical/methodological plan, and availability of new data (chamber dimensions, many functional parameters)...
January 19, 2017: Trends in Cardiovascular Medicine
https://www.readbyqxmd.com/read/28214098/is-perceived-athlete-leadership-quality-related-to-team-effectiveness-a-comparison-of-three-professional-sports-teams
#19
Katrien Fransen, S Alexander Haslam, Clifford J Mallett, Niklas K Steffens, Kim Peters, Filip Boen
OBJECTIVES: Researchers have argued that leadership is one of the most important determinants of team effectiveness. The present study examined the extent to which the perceived quality of athlete leadership was related to the effectiveness of elite sports teams. DESIGN: Three professional football teams (N=135) participated in our study during the preparation phase for the Australian 2016 season. METHODS: Players and coaching staff were asked to assess players' leadership quality in four leadership roles (as task, motivational, social, and external leader) via an online survey...
January 24, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/28214079/postoperative-ischemic-stroke-and-death-prediction-with-cha2ds2-vasc-score-in-patients-having-coronary-artery-bypass-grafting-surgery-a-nationwide-cohort-study
#20
Wei-Syun Hu, Cheng-Li Lin
OBJECTIVES: This nationwide cohort study was attempted to address the predictive ability of CHA2DS2-VASc score in both ischemic stroke and death in patients undergoing coronary artery bypass grafting (CABG) surgery. METHODS: We identified patients aged ≥18years undergoing de novo CABG between January 1, 2000 and December 31, 2011. We calculated CHA2DS2-VASc score for each study patient. We used univariable and multivariable Cox proportional hazards regression models to measure the hazard ratios (HRs) and 95% confidence intervals (CIs) for ischemic stroke and death associated with CHA2DS2-VASc score in the study patients...
February 12, 2017: International Journal of Cardiology
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