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https://www.readbyqxmd.com/read/29053916/in-situ-wrapping-si-nanoparticles-with-2d-carbon-nanosheets-as-high-areal-capacity-anode-for-lithium-ion-batteries
#1
Lijing Yan, Jie Liu, Qianqian Wang, Minghao Sun, Zhanguo Jiang, Chengdu Liang, Feng Pan, Zhan Lin
Silicon (Si) has aroused great interest as the most promising anode material for high-energy-density lithium-ion batteries (LIBs) in the last decade because of its significantly high capacity and low discharge potential. However, its practical application is still hindered by large volume change of Si during cycling, which is more serious in the case of high mass loading. Designing Si anode with high mass loading and high areal capacity by a simple, scalable, and environmentally friendly method is still a big challenge...
October 20, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29052926/platinum-based-nanowires-as-active-catalysts-toward-oxygen-reduction-reaction-in-situ-observation-of-surface-diffusion-assisted-solid-state-oriented-attachment
#2
Yanling Ma, Wenpei Gao, Hao Shan, Wenlong Chen, Wen Shang, Peng Tao, Chengyi Song, Chris Addiego, Tao Deng, Xiaoqing Pan, Jianbo Wu
Facile fabrication of advanced catalysts toward oxygen reduction reaction with improving activity and stability is significant for proton-exchange membrane fuel cells. Based on a generic solid-state reaction, this study reports a modified hydrogen-assisted, gas-phase synthesis for facile, scalable production of surfactant-free, thin, platinum-based nanowire-network electrocatalysts. The free-standing platinum and platinum-nickel alloy nanowires show improvements of up to 5.1 times and 10.9 times for mass activity with a minimum 2...
October 20, 2017: Advanced Materials
https://www.readbyqxmd.com/read/29051311/quantitative-analysis-of-antibiotic-usage-in-british-sheep-flocks
#3
Peers Davies, John G Remnant, Martin J Green, Emily Gascoigne, Nick Gibbon, Robert Hyde, Jack R Porteous, Kiera Schubert, Fiona Lovatt, Alexander Corbishley
The aim of this study was to examine the variation in antibiotic usage between 207 commercial sheep flocks using their veterinary practice prescribing records. Mean and median prescribed mass per population corrected unit (mg/PCU) was 11.38 and 5.95, respectively and closely correlated with animal defined daily dose (ADDD) 1.47 (mean), 0.74 (median) (R(2)=0.84, P<0.001). This is low in comparison with the suggested target (an average across all the UK livestock sectors) of 50 mg/PCU. In total, 80 per cent of all antibiotic usage occurred in the 39 per cent of flocks where per animal usage was greater than 9...
October 19, 2017: Veterinary Record
https://www.readbyqxmd.com/read/29049248/item-response-theory-based-validation-of-a-short-form-of-the-eating-behavior-scale-for-japanese-adults
#4
Jun Tayama, Sayaka Ogawa, Atsushi Takeoka, Masakazu Kobayashi, Susumu Shirabe
Obesity has become a serious social problem in industrialized countries in recent years. Clinically, although the evaluation of dietary behavior abnormalities is as important as any method of risk assessment for obesity, almost all the existing scales with many items may have numerous practical clinical difficulties. In this study, we aimed to prepare a short questionnaire to assess the dietary behavior abnormalities related to obesity. A total of 1032 individuals aged 20 to 59 years participated in the present study...
October 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29048786/-simultaneous-determination-of-five-mycotoxins-in-various-grains-and-their-products-by-liquid-chromatography-tandem-mass-spectrometry-with-isotope-internal-standard
#5
Bei Gao, Deming Jiang, Yongtan Yang
A rapid method was established for the determination of zearalenone (ZON), nivalenol (NIV), deoxynivalenol (DON), 3-acetyl-deoxynivalenol (3-ACDON) and 15-acetyl-deoxynivalenol (15-ACDON) in various grains and their products by liquid chromatography-tandem mass spectrometry (LC-MS/MS). The samples were extracted by acetonitrile-water (84:16, v/v), and cleaned-up by multifunctional column without any further step. The separation was carried out on an Acquity UPLC(®) BEH C18 column (100 mm×2.1 mm, 1.7 μm) with gradient elution using acetonitrile-water as mobile phases...
June 8, 2017: Se Pu, Chinese Journal of Chromatography
https://www.readbyqxmd.com/read/29047912/confocal-signal-evaluation-algorithms-for-surface-metrology-uncertainty-and-numerical-efficiency
#6
Maik Rahlves, Bernhard Roth, Eduard Reithmeier
Confocal microscopy is one of the dominating measurement techniques in surface metrology, with an enhanced lateral resolution compared to alternative optical methods. However, the axial resolution in confocal microscopy is strongly dependent on the accuracy of signal evaluation algorithms, which are limited by random noise. Here, we discuss the influence of various noise sources on confocal intensity signal evaluating algorithms, including center-of-mass, parabolic least-square fit, and cross-correlation-based methods...
July 20, 2017: Applied Optics
https://www.readbyqxmd.com/read/29046646/role-of-sex-hormones-in-the-control-of-vegetative-and-metabolic-functions-of-middle-aged-women
#7
Vincenzo Monda, Monica Salerno, Moscatelli Fiorenzo, Ines Villano, Andrea Viggiano, Francesco Sessa, Antonio I Triggiani, Giuseppe Cibelli, Anna Valenzano, Gabriella Marsala, Christian Zammit, Maria Ruberto, Giovanni Messina, Marcellino Monda, Vincenzo De Luca, Antonietta Messina
Aims: In women's life, menopause is characterized by significant physiological changes often associated with an increase in body mass and obesity-associated sicknesses. Numerous researches described interdependencies of estrogen deficiency, aging, and resting energy expenditure (REE) downfall in the obesity correlated with the menopause. The aim of this study was to determining whether healthy, obese menopausal women underwent HRT treatment, showed changes in their REE, autonomic asset, and assessment of oxidative stress in comparison with obese pre- and post-menopausal women...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/29046330/systematic-review-and-metaanalysis-comparing-the-bias-and-accuracy-of-the-modification-of-diet-in-renal-disease-and-chronic-kidney-disease-epidemiology-collaboration-equations-in-community-based-populations
#8
REVIEW
Emily C McFadden, Jennifer A Hirst, Jan Y Verbakel, Julie H McLellan J, F D Richard Hobbs, Richard J Stevens, Chris A O'Callaghan, Daniel S Lasserson
BACKGROUND: The majority of patients with chronic kidney disease are diagnosed and monitored in primary care. Glomerular filtration rate (GFR) is a key marker of renal function, but direct measurement is invasive; in routine practice, equations are used for estimated GFR (eGFR) from serum creatinine. We systematically assessed bias and accuracy of commonly used eGFR equations in populations relevant to primary care. CONTENT: MEDLINE, EMBASE, and the Cochrane Library were searched for studies comparing measured GFR (mGFR) with eGFR in adult populations comparable to primary care and reporting both the Modification of Diet in Renal Disease (MDRD) and the Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) equations based on standardized creatinine measurements...
October 18, 2017: Clinical Chemistry
https://www.readbyqxmd.com/read/29045261/incidence-and-outcomes-of-central-venous-catheter-related-blood-stream-infection-in-patients-with-inflammatory-bowel-disease-in-routine-clinical-practice-setting
#9
Wataru Shibata, Masako Sohara, Rongrong Wu, Kota Kobayashi, Shin Yagi, Katsuki Yaguchi, Yuki Iizuka, Miho Iwasa, Hitomi Nakahata, Tadashi Yamaguchi, Hiromi Matsumoto, Mao Okada, Kenshiro Taniguchi, Aki Hayashi, Shin Inazawa, Naoko Inagaki, Tomohiko Sasaki, Ryonho Koh, Hiroto Kinoshita, Masafumi Nishio, Tsuyoshi Ogashiwa, Ai Ookawara, Eiji Miyajima, Mari Oba, Hiroki Ohge, Shin Maeda, Hideaki Kimura, Reiko Kunisaki
BACKGROUND: Patients with inflammatory bowel disease (IBD) occasionally require central venous catheter (CVC) placement to support a therapeutic plan. Given that CVC can predispose patients to infection, this investigation was undertaken to assess the incidence, risk factors, and outcomes of CVC-related blood stream infection (CRBSI) in patients with IBD during routine clinical practice. METHODS: Data were compiled using retrospective chart reviews of 1367 patients treated at our IBD center between 2007 and 2012 during routine clinical practice...
November 2017: Inflammatory Bowel Diseases
https://www.readbyqxmd.com/read/29044720/observational-comparative-effectiveness-of-pharmaceutical-treatments-for-obesity-within-the-veterans-health-administration
#10
Ted R Grabarczyk
STUDY OBJECTIVE: To compare the effectiveness of weight-management medications used to assist with weight loss in real-world clinical practice in the Veterans Health Administration (VHA). DESIGN: Retrospective, multicenter, observational cohort study. DATA SOURCE: National VA Corporate Data Warehouse. PATIENTS: A total of 66,035 VA patients aged 18 years or older with a body mass index of 25 kg/m(2) or greater who had an initial fill for a study medication (orlistat [6153 patients], phentermine [304 patients], lorcaserin [298 patients], or phentermine-topiramate extended release [233 patients]) or participation in the VA's MOVE! weight management program with at least three total visits in a clinic coded as a MOVE clinic in the subsequent 24 weeks (59,047 patients) between January 1, 2012 and July 1, 2016...
October 17, 2017: Pharmacotherapy
https://www.readbyqxmd.com/read/29044586/males-with-prolactinoma-are-at-increased-risk-of-incident-cardiovascular-disease
#11
Konstantinos A Toulis, Tim Robbins, Narendra Reddy, Balachandran Kumarendran, Krishna Gokhale, Haren Wijesinghe, Kar Keung Cheng, Niki Karavitaki, John Wass, Krishnarajah Nirantharakumar
OBJECTIVE: To investigate whether the risk of incident cardiovascular disease (CVD) is increased in patients with prolactinoma. DESIGN: Population-based, retrospective, open-cohort study using The Health Improvement Network (THIN) database. PATIENTS: 2,233 patients with prolactinoma and 10,355 matched controls (1:5 ratio) from UK General Practices contributing to THIN were included. Sex, age, body mass index, and smoking status were used as matching parametres...
October 16, 2017: Clinical Endocrinology
https://www.readbyqxmd.com/read/29041861/in-vitro-evaluation-of-aerosol-delivery-of-aztreonam-lysine-azli-an-adult-mechanical-ventilation-model
#12
A Rodríguez, M Cabrera, L F Reyes, M Bodí, S Trefler, L Canadell, D Barahona, S Ehrmann, I Martin-Loeches, M I Restrepo, L Vecellio
BACKGROUND: The delivery profile of Aztreonam lysine (AZLI) during mechanical ventilation (MV) is unknown. We evaluated the amount of AZLI drug delivered using an in vitro model of adult MV. METHODS: An adult lung model designed to mimic current clinical practice was used. Both nebulizers were placed before a Y-piece and 4 settings were tested: A) Aeroneb solo® [AS] with a t-piece; B) AS with the spacer; C) M-Neb® [MN] with a t-piece and D) MN with the spacer...
October 18, 2017: Expert Opinion on Drug Delivery
https://www.readbyqxmd.com/read/29040936/chemical-profiling-and-quantification-of-dan-deng-tong-nao-capsule-using-ultra-high-performance-liquid-chromatography-coupled-with-high-resolution-hybrid-quadruple-orbitrap-mass-spectrometry
#13
Xiao-Jing Lv, Zhi Sun, Pei-Le Wang, Jing Yang, Tan-Ye Xu, Qing-Quan Jia, Da-Wei Li, Fang-Yi Su, Zhen-Feng Zhu, Jian Kang, Xiao-Jian Zhang
Dan-Deng-Tong-Nao capsule (DDTN) was a traditional Chinese medicine (TCM) formula, and has been widely used for the treatment of stroke clinically which caused by blood stasis. However, the bioactive substances and mechanism are unclear because of the complex compositions in DDTN. In this research, An ultra high-performance liquid chromatography (UHPLC) coupled with hybrid quadruple-orbitrap mass spectrometry (Q-Orbitrap MS) method was utilized to identify the chemical constituents of DDTN. In total, 102 compounds including diterpenes, lactones, flavonoids, and phenolic acids were identified by the accurate masses and fragmentation pathways, and 18 of them were unambiguously determined by comparison of reference standards...
October 7, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/29040330/the-association-between-toe-grip-strength-and-osteoarthritis-of-the-knee-in-japanese-women-a-multicenter-cross-sectional-study
#14
Daisuke Uritani, Takahiko Fukumoto, Tomoki Myodo, Kazuhito Fujikawa, Miyuki Usui, Daisuke Tatara
We evaluated the relationship between altered foot function and knee osteoarthritis through a specific comparison of toe grip strength in older women with and without knee osteoarthritis. Participants were 120 women with knee osteoarthritis (OA group) and 108 healthy community-dwelling women with no history of knee pain and lower limb surgery (control group). The following factors and outcome variables were included in our analysis: measured toe grip strength, isometric knee extension strength, the timed Up-and-Go, and the WOMAC scale...
2017: PloS One
https://www.readbyqxmd.com/read/29039221/how-useful-is-urinary-free-cortisol-in-the-clinic
#15
Nisa Sheriff, Ann I McCormack
Measurement of 24-h urine-free cortisol is frequently employed as a first-line screening and disease-monitoring test in Cushing's syndrome (CS). The quest for 'cortisol specificity' has seen the emergence of mass spectrometry (MS) based assays, particularly liquid chromatography/tandem mass spectrometry. In contrast to traditional immunoassays, liquid chromatography/tandem mass spectrometry 'free cortisol' measurement is less susceptible to 'interference' from cortisol precursors and metabolites. However, detection of these conjugates is important in mild CS and therefore, missed by MS if cortisol alone is measured...
October 17, 2017: Biomarkers in Medicine
https://www.readbyqxmd.com/read/29038776/torsion-of-an-accessory-hepatic-lobe-with-embedded-gallbladder-in-an-11-month-old-boy
#16
Chiman Lal Thakral, Ganji Shivalingam, Faizan Manzoor Dar, Nimish Thakral
An accessory lobe of the liver is a rare entity in clinical practice which is diagnosed incidentally. Infrequently, it may present as torsion with a clinical picture of an acute abdomen, a palpable mass, and may be associated with liver function abnormalities. Many of these patients have a history of previous surgery for congenital abdominal wall defects such as omphalocele. We present an extremely rare case of torsion of an accessory hepatic lobe in an 11-month-old male patient who presented in a state of shock...
January 2017: European Journal of Pediatric Surgery Reports
https://www.readbyqxmd.com/read/29037591/compensation-of-matrix-effects-in-gas-chromatography-mass-spectrometry-analysis-of-pesticides-using-a-combination-of-matrix-matching-and-multiple-isotopically-labeled-internal-standards
#17
Tomoyuki Tsuchiyama, Miki Katsuhara, Masahiro Nakajima
In the multi-residue analysis of pesticides using GC-MS, the quantitative results are adversely affected by a phenomenon known as the matrix effect. Although the use of matrix-matched standards is considered to be one of the most practical solutions to this problem, complete removal of the matrix effect is difficult in complex food matrices owing to their inconsistency. As a result, residual matrix effects can introduce analytical errors. To compensate for residual matrix effects, we have developed a novel method that employs multiple isotopically labeled internal standards (ILIS)...
October 7, 2017: Journal of Chromatography. A
https://www.readbyqxmd.com/read/29037478/five-hundred-seventy-six-cases-of-video-assisted-thoracic-surgery-utilizing-local-anesthesia-and-sedation-lessons-learned
#18
Mark R Katlic
BACKGROUND: General anesthesia and endotracheal intubation are a luxury rather than a necessity for many video-assisted thoracic surgery (VATS) operations. Twenty-three years ago the author began utilizing local anesthesia and sedation for pleural disease and subsequently for pericardial and lung disease. STUDY DESIGN: The records of all patients undergoing VATS utilizing local anesthesia and sedation at hospitals of the Geisinger Health System (Danville and Wilkes-Barre, PA) June 1, 2002 to June 30, 2011 and the Lifebridge Health System (Baltimore, MD) July 1, 2011 to March 1, 2017 were retrospectively reviewed...
October 13, 2017: Journal of the American College of Surgeons
https://www.readbyqxmd.com/read/29037330/waist-circumference-shows-the-highest-predictive-value-for-metabolic-syndrome-and-waist-to-hip-ratio-for-its-components-in-spanish-adolescents
#19
Javier S Perona, Jacqueline Schmidt-RioValle, Blanca Rueda-Medina, María Correa-Rodríguez, Emilio González-Jiménez
Both waist circumference (WC) and waist-to-hip ratio (WHR) have been proposed as predictors of metabolic syndrome (MetS) in adolescents, but no consensus has been reached to date. This study hypothesizes that WC provides a greater predictive value for MetS in Spanish adolescents than WHR. A cross-sectional study was performed on 1001 adolescents (13.2 ± 1.2 years) randomly recruited from schools in southeast Spain. Anthropometric measures were correlated with the components of MetS (triglycerides, glucose, blood pressure, and high-density lipoprotein cholesterol) as well as inflammation markers (interleukin-6 and tumor necrosis factor-alpha , C-reactive protein, and ceruloplasmin)...
September 2017: Nutrition Research
https://www.readbyqxmd.com/read/29037104/high-magnitude-head-impact-exposure-in-youth-football
#20
Eamon T Campolettano, Ryan A Gellner, Steven Rowson
OBJECTIVE Even in the absence of a clinically diagnosed concussion, research suggests that neurocognitive changes may develop in football players as a result of frequent head impacts that occur during football games and practices. The objectives of this study were to determine the specific situations in which high-magnitude impacts (accelerations exceeding 40 g) occur in youth football games and practices and to assess how representative practice activities are of games with regard to high-magnitude head impact exposure...
October 17, 2017: Journal of Neurosurgery. Pediatrics
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