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https://www.readbyqxmd.com/read/28071736/orbital-angular-momentum-mode-division-filtering-for-photon-phonon-coupling
#1
Zhi-Han Zhu, Li-Wen Sheng, Zhi-Wei Lv, Wei-Ming He, Wei Gao
Stimulated Brillouin scattering (SBS), a fundamental nonlinear interaction between light and acoustic waves occurring in any transparency material, has been broadly studied for several decades and gained rapid progress in integrated photonics recently. However, the SBS noise arising from the unwanted coupling between photons and spontaneous non-coherent phonons in media is inevitable. Here, we propose and experimentally demonstrate this obstacle can be overcome via a method called orbital angular momentum mode division filtering...
January 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28059207/414%C3%A2-%C3%A2-w-near-diffraction-limited-all-fiberized-single-frequency-polarization-maintained-fiber-amplifier
#2
Long Huang, Hanshuo Wu, Ruixian Li, Lei Li, Pengfei Ma, Xiaolin Wang, Jinyong Leng, Pu Zhou
A high-power 1064 nm single-frequency polarization-maintained fiber amplifier based on an all-fiber master oscillator power amplifier configuration is demonstrated. To mitigate the stimulated Brillouin scattering (SBS) and the mode instability (MI) effect, a polarization-maintained Yb-doped fiber with a high dopant concentration and a 25 μm core diameter is adopted in the main amplifier stage; in addition, step-distributed longitudinal strain is imposed on the active fiber to broaden its effective SBS gain spectrum and further increase the SBS threshold...
January 1, 2017: Optics Letters
https://www.readbyqxmd.com/read/28058964/fasting-and-postprandial-plasma-citrulline-and-the-correlation-to-intestinal-function-evaluated-by-72-hour-metabolic-balance-studies-in-short-bowel-jejunostomy-patients-with-intestinal-failure
#3
Hilde Fjermestad, Mark Hvistendahl, Palle Bekker Jeppesen
BACKGROUND: Fasting plasma citrulline (p-citrulline) is a marker of functional enterocyte mass. However, the optimal timing of measurement in relation to meals has yet to be clarified. Furthermore, p-citrulline has been proposed to be a surrogate marker for small bowel length and intestinal absorption parameters in short bowel syndrome patients with intestinal failure (SBS-IF). MATERIALS AND METHODS: Eight patients with SBS-IF and 8 healthy controls (HCs) were given a standardized mixed test meal, and p-citrulline was measured 15 minutes before and 60, 120, and 180 minutes after completion of the meal...
January 1, 2017: JPEN. Journal of Parenteral and Enteral Nutrition
https://www.readbyqxmd.com/read/28052307/ultrashort-bowel-syndrome-outcome-in-children-treated-in-a-multidisciplinary-intestinal-rehabilitation-unit
#4
Mariela Dore, Paloma Triana Junco, Ane Andres Moreno, Vanesa Nuñez Cerezo, Martha Romo Muñoz, Alba Sánchez Galán, Alejandra Vilanova Sánchez, Gerardo Prieto, Esther Ramos, Francisco Hernandez, Leopoldo Martínez Martínez, Manuel Lopez Santamaria
Aim Short bowel syndrome (SBS) is the leading cause of intestinal failure (IF) in the pediatric population. Our aim was to review long-term outcome of ultrashort bowel syndrome (USBS) in an Intestinal Rehabilitation Unit (IRU). Patients and Methods Retrospective study of patients with USBS (defined as < 10 cm of remnant small bowel) treated between 2000 and 2015. Demographic data, clinical, and treatment variables including parenteral nutrition (PN), surgical techniques, and intestinal transplantation (IT) were analyzed...
January 4, 2017: European Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/28050507/shear-bond-strength-of-ceramic-brackets-with-different-base-designs-comparative-in-vitro-study
#5
Mohd Younus Ansari, Deepak K Agarwal, Ankur Gupta, Preeti Bhattacharya, Juhi Ansar, Ravi Bhandari
INTRODUCTION: Knowledge about the Shear Bond Strength (SBS) of ceramic brackets with different base design is essential as it affects bond strength to enamel. AIM: The aim of the present study was to evaluate and compare the effect of base designs of different ceramic brackets on SBS, and to determine the fracture site after debonding. MATERIALS AND METHODS: Four groups of ceramic brackets and one group of metal brackets with different base designs were used...
November 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28040608/the-effect-of-phosphoric-and-phosphonic-acid-primers-on-bone-cement-bond-strength-to-total-hip-stem-alloys
#6
Eike Jakubowitz, Louisa Liehn, Alexander Jahnke, Bernd Wöstmann, Markus Rickert, Thomas Niem
Aseptic loosening at alloy-cement interfaces constitutes a main failure mechanism of cemented total hip replacements (THR). As a potential solution we investigated the effect of metal primers containing phosphoric and phosphonic acid on shear bond strength (SBS) of bone cement to THR alloys (CoCrMo, TiAlNb) and pure tin (Sn) substrates (20×8×3 mm). Metal surfaces were modified by polishing or Al2O3 blasting and primer application. Substrates without primer treatment served as references. Cylindrical cement pins (Ø 5mm) were polymerised onto substrate surfaces and aging (1, 5, 14 and 150 days) was simulated in aqueous NaCl solution (0...
December 21, 2016: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/28026711/sedentary-behaviours-among-adults-across-canada
#7
Katya M Herman, Travis J Saunders
 OBJECTIVES: While cross-Canada variations in physical activity and weight status have been illustrated, less is known about sedentary behaviour (SB). The aim of this study was to describe various SBs and their correlates among Canadian adults. METHODS: Cross-sectional data from the 2011-2012 Canadian Community Health Survey included 92,918 respondents aged 20-75+ years, representative of >22 million Canadian adults. TV/video viewing, computer, video game playing and reading time were self-reported. Associations with socio-demographic, health and health behaviour variables were examined...
December 27, 2016: Canadian Journal of Public Health. Revue Canadienne de Santé Publique
https://www.readbyqxmd.com/read/27982430/severe-retinal-hemorrhages-with-retinoschisis-in-infants-are-not-pathognomonic-for-abusive-head-trauma
#8
Mark J Shuman, Kenneth D Hutchins
The combination of subdural hemorrhage (SDH), retinal hemorrhage (RH), and encephalopathy, or the presence of severe retinal hemorrhages alone in infants, is often attributed to and has been stated to be pathognomonic for abusive head trauma (AHT) or shaken baby syndrome. These beliefs have been challenged, because the same constellation of findings has been identified in accidental head injuries and natural diseases, and most if not all of the studies that support the concept of diagnostic specificity have serious flaws in their methodology...
December 16, 2016: Journal of Forensic Sciences
https://www.readbyqxmd.com/read/27982187/effect-of-acid-etching-silane-and-thermal-cycling-on-the-bond-strength-of-metallic-brackets-to-ceramic
#9
Natália Regina Santos de Matos, Ana Rosa Costa, Heloísa Cristina Valdrighi, Américo Bortolazzo Correr, Silvia Amélia Vedovello, Milton Santamaria, Lourenço Correr-Sobrinho
The aim of this study was to evaluate the effect of silanes, thermal cycling and acid etching on the shear bond strength (SBS) of metallic brackets to feldspathic ceramic. Feldspathic ceramic cylinders (Groups 1, 2, 5 and 6) were etched for 60 s with 10% hydrofluoric acid and Groups 3, 4, 7 and 8, without acid etching. Two layers of silane Clearfil Ceramic Primer (CCP, Groups 1 to 4) and two layers of RelyX Ceramic Primer (RCP, groups 5 to 8) were applied and dried for 60 s. Brackets were bonded to the cylinders with Transbond XT and light-activated for 40 s with Bluephase G2...
October 2016: Brazilian Dental Journal
https://www.readbyqxmd.com/read/27982181/bonding-of-the-polymer-polyetheretherketone-peek-to-human-dentin-effect-of-surface-treatments
#10
Regina Furbino Villefort Rocha, Lilian Costa Anami, Tiago Moreira Bastos Campos, Renata Marques de Melo, Rodrigo Othávio de Assunção E Souza, Marco Antonio Bottino
Polyetheretherketone (PEEK) is a material suitable for frameworks of fixed dental prostheses. The effect of different surface treatments on the bond strength of PEEK bonded to human dentin was evaluated. One hundred PEEK cylinders (3 mm×3 mm) were divided into five groups according to surface treatment: silica coating, sandblasting with 45 μm Al2O3 particles, etching with 98% sulfuric acid for 5, 30 and for 60 s. These cylinders were luted with resin cement onto 50 human molars. First, each tooth was embedded in epoxy resin and the buccal dentin surface was exposed...
October 2016: Brazilian Dental Journal
https://www.readbyqxmd.com/read/27978871/-interventional-bronchoscopies-for-the-treatment-of-112-cases-with-complex-malignant-central-airway-diseases-involved-in-bifurcation
#11
Hongwu Wang, Nan Zhang, Dongmei Li, Meimei Tao, Jieli Zhang, Hang Zou, Yunzhi Zhou, Sujuan Liang, Xiuyun Bai
BACKGROUND: It is very difficult to deal with the comprehensive central airway diseases, especially the malignant airway obstruction. The aim of this study is to explore the clinical effects of multiple interventional bronchoscopies for the treatment of 112 cases with comprehensive malignant central airway diseases so as to evaluate the clinical applications of thermoablation and cryosurgery. METHODS: The 112 cases with malignant airway diseases retrospectively reviewed for bronchoscopic interventions performed in more than two lesions of carina and/or bifurcation...
December 20, 2016: Zhongguo Fei Ai za Zhi, Chinese Journal of Lung Cancer
https://www.readbyqxmd.com/read/27977829/effect-of-lining-materials-on-shear-bond-strength-for-composite-restorations-in-vitro
#12
Taciana Marco Caneppele, Eduardo Bresciani, Daniele Mara Da Silva Ávila, Daphne Camara Barcellos, Cesar Rogério Pucci
This study evaluated the influence of liner agents placed under resin composite restorations on shear bond strength (SBS) to dentin. A total of 40 extracted bovine incisors were used. Enamel surfaces were ground to expose a flat dentin area of 7 mm in diameter. Teeth were divided into four groups according to tested liners: Group 1 (control) used no liner; Group 2 used a resin-modified glass-ionomer cement liner (Vitrebond Plus, 3M ESPE); Group 3 used a light-activated calcium hydroxide resin liner (Ultra-Blend Plus, Ultradent); and Group 4 used a polyacrylic acid surface treatment + conventional glass-ionomer cement liner (Vidrion F, SSWhite)...
January 2017: International Journal of Periodontics & Restorative Dentistry
https://www.readbyqxmd.com/read/27976980/gender-differences-in-public-office-workers-satisfaction-subjective-symptoms-and-musculoskeletal-complaints-on-workplace-and-office-environments
#13
Sangbok Lee, Myoung Hwan Park, Byung Yong Jeong
This study investigates the differences between male and female public office workers' satisfaction levels, sick building syndrome (SBS) symptoms, and musculoskeletal disorders (MSDs) complaints on workplace and office environments. Questionnaire surveys were done in 30 offices from 15 public institutions. Male and female workers of the same age were coupled and selected from each office, gathering a total of 120 male and 120 female subjects. The results show that differences exist between genders in noise and lighting satisfaction levels, SBS-related symptoms (in eye, nose, and skin), and MSDs complaints on hand/wrist/finger, meanwhile there is no difference in overall satisfaction level of office environments Also, this study suggests that office design for public office workers who spend most time with visual display terminal works should take into account the gender differences in preventing not only MSDs but also SBS...
December 15, 2016: International Journal of Occupational Safety and Ergonomics: JOSE
https://www.readbyqxmd.com/read/27966857/a-review-of-the-fundamental-principles-and-applications-of-solution-blow-spinning
#14
John L Daristotle, Adam M Behrens, Anthony D Sandler, Peter Kofinas
Solution blow spinning (SBS) is a technique that can be used to deposit fibers in situ at low cost for a variety of applications, which include biomedical materials and flexible electronics. This review is intended to provide an overview of the basic principles and applications of SBS. We first describe a method for creating a spinnable polymer solution and stable polymer solution jet by manipulating parameters such as polymer concentration and gas pressure. This method is based on fundamental insights, theoretical models, and empirical studies...
December 28, 2016: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/27966507/the-effect-of-pre-etching-with-37-orthophosphoric-acid-on-the-shear-bond-strength-of-orthodontic-brackets-bonded-using-self-etching-primer-adhesive-system
#15
Shaheen Hamdani, G Anita, Javed Sodawala, Sumit Gandhi, Sayyed Muhammad Ali
OBJECTIVES: The purpose of this study was to compare the effect of pre-etching with 37% orthophosphoric acid on the shear bond strength (SBS) of orthodontic brackets bonded using self-etching primer (SEP). MATERIALS AND METHODS: Two hundred freshly extracted human premolars were divided randomly into two groups based on pre-etching with 37% orthophosphoric acid: Group 1 (control, n = 50) without pre-etching and Group 2 (experimental, n = 150) with pre-etching. Group 2 was further divided into three sub groups 2a, 2b, and 2c with 50 teeth each and was first pre-etched with 37% orthophosphoric acid for 10, 30, and 60 s, respectively...
September 2016: Indian Journal of Dental Research: Official Publication of Indian Society for Dental Research
https://www.readbyqxmd.com/read/27965501/effect-of-surface-treatments-on-the-bond-strength-to-turkom-cera-all-ceramic-material
#16
Abdul Aa Razak, Mohamed I Abu-Hassan, Bandar Ma Al-Makramani, Fuad A Al-Sanabani, Ibrahim Z Al-Shami, Hosain M Almansour
AIM: The aim of this study was to evaluate the effect of surface treatments on shear bond strength (SBS) of Turkom-Cera (Turkom-Ceramic (M) Sdn. Bhd., Puchong, Malaysia) all-ceramic material cemented with resin cement Panavia-F (Kuraray Medical Inc., Okayama, Japan). MATERIALS AND METHODS: Forty Turkom-Cera ceramic disks (10 mm × 3 mm) were prepared and randomly divided into four groups. The disks were wet ground to 1000-grit and subjected to four surface treatments: (1) No treatment (Control), (2) sandblasting, (3) silane application, and (4) sandblasting + silane...
November 1, 2016: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/27965484/influence-of-dentin-deproteinization-on-bonding-degradation-1-year-results
#17
César R Pucci, Natália R Barbosa, Eduardo Bresciani, Karen Ck Yui, Maria Filomena Rl Huhtala, Daphne C Barcellos, Carlos Rg Torres
INTRODUCTION: The decalcification protocol of dentin surface with sodium hypochlorite removes the exposed collagen fibrils and could improve the longevity of the bonding interface. This study evaluated the influence of collagen removal with 10% sodium hypochlorite (10% NaOCl) on the longitudinal shear bond strength (SBS) of adhesives to dentin. MATERIALS AND METHODS: Seventy-two extracted human molars were sectioned and the buccal and lingual surfaces were flattened and acid etched with 37% phosphoric acid for 15 seconds...
December 1, 2016: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/27936586/inspired-by-stenocara-beetles-from-water-collection-to-high-efficiency-water-in-oil-emulsion-separation
#18
Xinjuan Zeng, Long Qian, Xianxia Yuan, Cailong Zhou, Zhaowen Li, Jiang Cheng, Shouping Xu, Shuangfeng Wang, Pihui Pi, Xiufang Wen
Inspired by the water-collecting mechanism of the Stenocara beetle's back structure, we prepared a superhydrophilic bumps-superhydrophobic/superoleophilic stainless steel mesh (SBS-SSM) filter via a facile and environmentally friendly method. Specifically, hydrophilic silica microparticles are assembled on the as-cleaned stainless steel mesh surface, followed by further spin-coating with a fluoropolymer/SiO2 nanoparticle solution. On the special surface of SBS-SSM, attributed to the steep surface energy gradient, the superhydrophilic bumps (hydrophilic silica microparticles) are able to capture emulsified water droplets and collect water from the emulsion even when their size is smaller than the pore size of the stainless steel mesh...
December 12, 2016: ACS Nano
https://www.readbyqxmd.com/read/27933325/influence-of-pre-etching-times-on-fatigue-strength-of-self-etch-adhesives-to-enamel
#19
Toshiki Takamizawa, Wayne W Barkmeier, Akimasa Tsujimoto, Hajime Endo, Kenji Tsuchiya, Robert L Erickson, Mark A Latta, Masashi Miyazaki
PURPOSE: To use shear bond strength (SBS) and shear fatigue strength (SFS) testing to determine the influence of phosphoric acid pre-etching times prior to application of self-etch adhesives on enamel bonding. MATERIALS AND METHODS: Two single-step self-etch universal adhesives (Prime&Bond Elect and Scotchbond Universal), a conventional single-step self-etch adhesive (G-ӕnial Bond), and a conventional two-step self-etch adhesive (OptiBond XTR) were used. The SBS and SFS were obtained with phosphoric acid pre-etching for 3, 10, or 15 s prior to application of the adhesives, and without pre-etching (0 s) as a control...
December 8, 2016: Journal of Adhesive Dentistry
https://www.readbyqxmd.com/read/27933324/effect-of-aqueous-storage-on-original-and-repair-bond-strength-and-residual-monomer-release-of-fiberreinforced-composites
#20
Diana Wolff, Michael Coupek, Ralf Erber, Tanja Krueger, Johannes Krisam, Hans Joerg Staehle, Cornelia Frese
PURPOSE: To evaluate the effects of aqueous storage on shear bond strength (SBS) and monomer release of fiberreinforced composites (FRCs). MATERIALS AND METHODS: Four unidirectional FRCs were tested, including one semi-interpenetrating polymer network (IPN) (ES, everStick) and three cross-linked polymer (CLP) FRCs (GT, GrandTec; TF, TenderFiber; DP, Dentapreg). The SBS of samples of original resin to fresh FRC with an intact oxygen inhibition layer (n = 30/group) and repair resin to FRC after surface treatment (n = 30/group) was evaluated after 6 and 12 months of storage in artificial saliva...
December 8, 2016: Journal of Adhesive Dentistry
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