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https://www.readbyqxmd.com/read/28099303/quality-of-life-in-bilateral-vs-unilateral-end-stage-ankle-arthritis-and-outcomes-of-bilateral-vs-unilateral-total-ankle-replacement
#1
Sagar J Desai, Mark Glazebrook, Murray J Penner, Kevin J Wing, Alastair S E Younger, Ellie Pinsker, Timothy R Daniels
BACKGROUND: We performed a retrospective cohort study to compare preoperative health-related quality of life (HRQoL) between patients with bilateral and those with unilateral end-stage ankle arthritis. We also compared midterm outcomes in a subgroup of patients who had undergone staged bilateral total ankle replacement (TAR) with the outcomes in the group treated with unilateral TAR. METHODS: The HRQoL before surgical treatment was compared between 53 patients with bilateral end-stage ankle arthritis identified from the Canadian Orthopaedic Foot and Ankle Society Prospective Ankle Reconstruction Database and 106 patients with unilateral arthritis selected from the same database...
January 18, 2017: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/28094238/evaporating-metal-nanocrystal-arrays
#2
Xue Zhang, James Joy, Chenwei Zhao, Jin-Ho Kim, Gustavo Fernandes, Jimmy Xu, James Valles
Anodic aluminum oxide (AAO) substrates with a self-ordered triangular array of nanopores provide the means to fabricate multiple forms of nano materials, such as nanowires and nanoparticles. This study focuses on nanostructures that emerge in thin films of metals thermally evaporated onto the surface of AAO. Previous work showed that films of different evaporated metals assume dramatically different structures, e.g. an ordered triangular array of nearly monodisperse nanoparticles forms for Lead(Pb) while a polycrystalline nanohoneycomb structure forms for Silver(Ag)...
January 17, 2017: Nanotechnology
https://www.readbyqxmd.com/read/28091638/highly-ordered-sandwich-type-phthalocyaninato-porphyrinato-europium-double-decker-nanotubes-and-room-temperature-no2-sensitive-properties
#3
Peihua Zhu, Yucheng Wang, Pan Ma, Feifei Song, Xinyu Han, Shuncheng Yao, Cheng Yang
A sandwich-type (phthalocyaninato)(porphyrinato) europium double-decker complex Eu(TPyP){Pc-(OC8H17)8} [TPyP = meso-tetra(4-pyridyl)porphyrin; Pc-(OC8H17)8 = 2,3,9,10,16,17,23,24-octakis(octyloxy)phthalocyanine] (2) was designed and prepared. For comparative studies, Eu(TPyP)(Pc) (1) was also prepared. Highly ordered nanotubes of complexes 1 and 2 were successfully fabricated by using an anodized alumina oxide (AAO) template method. The nanotubes were comparatively investigated by electronic absorption spectra, scanning electron microscopy (SEM), low-angle X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR) and energy dispersive spectroscopy (EDS) techniques...
January 16, 2017: Dalton Transactions: An International Journal of Inorganic Chemistry
https://www.readbyqxmd.com/read/28074463/importance-of-fixation-of-posterior-malleolus-fracture-in-trimalleolar-fractures-a-retrospective-study
#4
Sinan Karaca, Meriç Enercan, Güzelali Özdemir, Sinan Kahraman, Mutlu Çobanoğlu, Metin Küçükkaya
BACKGROUND: The aim of this retrospective study was to evaluate treatment effect and importance of posterior malleolus (PM) fixation in surgically treated trimalleolar fractures. METHODS: A total of 57 cases of ankle joint fracture involving PM and treated with open reduction and internal fixation technique between 2004 and 2011 were evaluated. PM fixation was performed with cannulated screws in 46 cases, and in 11 cases, PM plate was used. All patients were assessed using American Orthopaedic Foot and Ankle Society (AOFAS) score, American Academy of Orthopedic Surgeons (AAOS) foot and ankle questionnaire, and Visual Analog Score (VAS) pain scale...
November 2016: Ulusal Travma Ve Acil Cerrahi Dergisi, Turkish Journal of Trauma & Emergency Surgery: TJTES
https://www.readbyqxmd.com/read/28071850/a-two-dimensional-lamellar-membrane-mxene-nanosheet-stacks
#5
Li Ding, Yanying Wei, Yanjie Wang, Hongbin Chen, Jürgen Caro, Haihui Wang
Two-dimensional (2D) materials are promising candidates for advanced water purification membranes. A new kind of lamellar membrane is based on a stack of 2D MXene nanosheets. Starting from compact Ti3 AlC2 , delaminated nanosheets of the composition Ti3 C2 Tx with the functional groups T (O, OH, and/or F) can be produced by etching and ultrasonication and stapled on a porous support by vacuum filtration. The MXene membrane supported on anodic aluminum oxide (AAO) substrate shows excellent water permeance (more than 1000 L m(-2)  h(-1)  bar(-1) ) and favorable rejection rate (over 90 %) for molecules with sizes larger than 2...
January 10, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28071590/fabrication-of-nanopore-and-nanoparticle-arrays-with-high-aspect-ratio-aao-masks
#6
Zeping Li, Zhimou Xu, Xiaopeng Qu, Shuangbao Wang, Jing Peng, Lihong Mei
How to use high aspect ratio anodic aluminum oxide (AAO) membranes as the etching and evaporation mask is one of the unsolved problems in the application of nanostructured arrays. Here we describe that the versatile utilizations of the highly ordered AAO membranes with high aspect ratio more than 20 as universal masks for formations of various nanostructure arrays on various substrates. The result shows that the fabricated nanopore and nanoparticle arrays of substrates inherit the regularity of the AAO membranes completely...
January 10, 2017: Nanotechnology
https://www.readbyqxmd.com/read/28069238/low-intensity-ultrasound-as-a-pretreatment-to-drying-of-daylilies-impact-on-enzyme-inactivation-color-changes-and-nutrition-quality-parameters
#7
Zhongyuan Zhang, Liying Niu, Dajing Li, Chunquan Liu, Rui Ma, Jiangfeng Song, Jiangtao Zhao
Effects of thermal and low intensity ultrasound combined with heat (LIUH) pretreatment prior to microwave vacuum drying on enzyme inactivation, color changes and nutrition quality properties of dried daylilies were investigated. The peroxidase (POD), ascorbic acid oxidase (AAO) and polyphenoloxidase (PPO) thermal and LIUH (0.2 and 0.4W/cm(2)) inactivation were determined and compared at 70, 80 and 90°C. Significant reduction in the POD, AAO and PPO activity was seen in daylilies after an ambient LIUH pretreatment than thermal pretreatment...
May 2017: Ultrasonics Sonochemistry
https://www.readbyqxmd.com/read/28067206/preparation-of-aao-ceo2-nanotubes-and-their-application-in-electrochemical-oxidation-desulfurization-of-diesel
#8
Xiaoqing Du, Yumeng Yang, Chenxi Yi, Yu Chen, Chao Cai, Zhao Zhang
The coaxial arrays of AAO-CeO2 NTs have been successfully galvanostatically deposited on an anode, characterized and adopted as a catalyst for removing organic sulfurs from diesel. The influence of the main electrochemical oxidation factors on the efficiency of desulfurization have also been investigated. The results show that the fabrication process of AAO-CeO2 NTs is accompanied by the formation of a new phase, namely Al3Ce, and the main oxidation products of the diesel are soluble inorganic sulphides, especially Ce2(SO4)3...
January 9, 2017: Nanotechnology
https://www.readbyqxmd.com/read/28056254/-interpretation-of-american-academy-of-orthopaedic-surgeons-clinical-practice-guideline-on-the-treatment-of-pediatric-diaphyseal-femur-fractures
#9
W Chen, J Li, Y Z Zhang
The original guideline on the Treatment of Pediatric Diaphyseal Femur Fractures (PDFF) was developed by the American Academy of Orthopaedic Surgeons (AAOS) in 2009, and the guideline was updated by AAOS in 2015. In this reissue, all recommendations in the original guideline identified as"inconclusive" were removed with seven recommendations reserved and without new recommendations added. The recommendations in the current guideline were listed as follows: (1) Children younger than 36 months with PDFF should be evaluated for child abuse...
January 1, 2017: Zhonghua Wai Ke za Zhi [Chinese Journal of Surgery]
https://www.readbyqxmd.com/read/28051175/continuous-fabrication-of-nanostructure-arrays-for-flexible-surface-enhanced-raman-scattering-substrate
#10
Chengpeng Zhang, Peiyun Yi, Linfa Peng, Xinmin Lai, Jie Chen, Meizhen Huang, Jun Ni
Surface-enhanced Raman spectroscopy (SERS) has been a powerful tool for applications including single molecule detection, analytical chemistry, electrochemistry, medical diagnostics and bio-sensing. Especially, flexible SERS substrates are highly desirable for daily-life applications, such as real-time and in situ Raman detection of chemical and biological targets, which can be used onto irregular surfaces. However, it is still a major challenge to fabricate the flexible SERS substrate on large-area substrates using a facile and cost-effective technique...
January 4, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28045632/clinical-practice-guideline-update
#11
Seth R Schwartz, Anthony E Magit, Richard M Rosenfeld, Bopanna B Ballachanda, Jesse M Hackell, Helene J Krouse, Claire M Lawlor, Kenneth Lin, Kourosh Parham, David R Stutz, Sandy Walsh, Erika A Woodson, Ken Yanagisawa, Eugene R Cunningham
The American Academy of Otolaryngology-Head and Neck Surgery Foundation (AAO-HNSF) has published a supplement to this issue of Otolaryngology-Head and Neck Surgery featuring the updated Clinical Practice Guideline: Earwax (Cerumen Impaction). To assist in implementing the guideline recommendations, this article summarizes the rationale, purpose, and key action statements. The 11 recommendations emphasize proper ear hygiene, diagnosis of cerumen impaction, factors that modify management, evaluating the need for intervention, and proper treatment...
January 2017: Otolaryngology—Head and Neck Surgery
https://www.readbyqxmd.com/read/28039025/common-variants-of-human-tert-and-terc-genes-and-susceptibility-to-sporadic-alzheimers-disease
#12
D Scarabino, E Broggio, G Gambina, F Pelliccia, R M Corbo
Studies investigating telomere length in association with cognitive decline, dementia, and sporadic Alzheimer's disease (AD) have frequently found shorter telomeres to be associated with the development of AD and telomerase expression with pathological processes in AD. Human telomerase is constituted by two components: the telomerase reverse transcriptase (TERT) and the telomerase RNA component (TERC). Genetic variation at the two loci has been investigated in relation to telomere length, longevity, and common diseases of advanced age, but not in relation to AD...
February 2017: Experimental Gerontology
https://www.readbyqxmd.com/read/28029761/switchable-photonic-crystals-using-one-dimensional-confined-liquid-crystals-for-photonic-device-application
#13
Seong Ho Ryu, Min-Jun Gim, Wonsuk Lee, Suk-Won Choi, Dong Ki Yoon
Photonic crystals (PCs) have recently attracted considerable attention, with much effort devoted to photonic bandgap (PBG) control for varying the reflected color. Here, fabrication of a modulated one-dimensional (1D) anodic aluminum oxide (AAO) PC with a periodic porous structure is reported. The PBG of the fabricated PC can be reversibly changed by switching the ultraviolet (UV) light on/off. The AAO nanopores contain a mixture of photoresponsive liquid crystals (LCs) with irradiation-activated cis/trans photoisomerizable azobenzene...
January 10, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28018488/relationship-between-patient-reported-outcome-measures-prom-and-three-measures-of-foot-ankle-alignment-in-patients-with-metatarsal-head-pain-a-cross-sectional-study
#14
Manuel González-Sánchez, Esther Velasco-Ramos, Maria Ruiz Muñoz, Antonio I Cuesta-Vargas
BACKGROUND: The aim of the present study is to establish the relationship between foot-ankle patient-reported outcome measures (PROM) and three measures of foot-ankle alignment (MoFAA) in patients with metatarsal head pain. METHODS: A cross-sectional study where 206 patients completed three PROMs and a clinician recorded three MoFAA bilaterally (three times each). A reliability analysis of the MoFAA, a correlation analysis (between MoFAA and PROM) and regression analysis (dependent variable: PROM; independent variables: MoFAA) were performed...
2016: Journal of Foot and Ankle Research
https://www.readbyqxmd.com/read/28017747/complications-and-their-managements-of-large-intracranial-vestibular-schwannoma-via-retrosigmoid-approach
#15
Xiang Huang, Ming Xu, Jian Xu, Liangfu Zhou, Ping Zhong, Mingyu Chen, Kaiyuan Ji, Huiyu Chen, Ying Mao
OBJECTIVE: To investigate the common complications from the microsurgical treatment of large intracranial vestibular schwannoma (VS) via suboccipital retrosigmoid approach and to propose strategies for minimizing such complications. METHODS: We selected all large unilateral VS patients from the collected database (1999-2013) who underwent microsurgical resection as their initial treatment for histopathologically confirmed VS. Tumors larger than 30 x 20 mm were defined as large...
December 22, 2016: World Neurosurgery
https://www.readbyqxmd.com/read/28017153/template-synthesis-of-tubular-nanostructures-for-loading-biologically-active-molecules
#16
Ayşegül Karataş, Aslıhan Hilal Algan
The template synthesis is a low cost, simple and versatile nanofabrication method to produce cylindrical/tubular nanostructures with controllable dimensions such as length, diameter and aspect ratio. This method utilizes nanoporous membranes such as anodized aluminum oxide (AAO) or polycarbonate (PC) as templates which have nanosized specific, cylindrical and uniform inner pores to be coated with the desired material. Template synthesized nanotubular structures have been produced from variety of materials including ceramics, polymers and proteins for loading biologically active molecules...
December 22, 2016: Current Topics in Medicinal Chemistry
https://www.readbyqxmd.com/read/28009519/hydrophilicity-reinforced-adhesion-of-anodic-alumina-oxide-template-films-to-conducting-substrates-for-facile-fabrication-of-highly-ordered-nanorod-arrays
#17
Chuanju Wang, Guiqiang Wang, Rui Yang, Xiangyu Sun, Hui Ma, Shuqing Sun
Arrays of ordered nanorods are of special interest in many fields. However, it remains challenging to obtain such arrays on conducting substrates in a facile manner. In this article, we report the fabrication of highly ordered and vertically standing nanorod arrays of both metals and semiconductors on Au films and indium tin oxide glass substrates without an additional layering. In this approach, following the simple hydrophilic treatment of an anodic aluminum oxide (AAO) membrane and conducting substrates, the AAO membrane was transferred onto the modified substrates with excellent adhesion...
January 5, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/28004101/salicylic-acid-and-calcium-treatments-improves-wheat-vigor-lipids-and-phenolics-under-high-salinity
#18
Nilgün Yücel Candan, Haklı Heybet Elif
Seed vigor is a complex physiological trait required to ensure the rapid and uniform emergence of plants in the field under different environmental conditions. Therefore, salicylic acid (SA, 0.5 mM) and calcium (Ca2+, 50 mM) priming were used as exogenous growth enhancers to stimulate wheat (Triticum durum Desf. cv. Yelken) seed vigor under high salinity. The main aim was to address whether priming of wheat with SA, Ca2+ and SA+Ca (SA, 0.5 mM + Ca2+, 50 mM; their combination) could bring about supplementary agronomic benefits particularly under stressful environments such as salinity...
December 2016: Acta Chimica Slovenica
https://www.readbyqxmd.com/read/28000795/fabrication-of-sesame-sticks-like-silver-nanoparticles-polystyrene-hybridnanotubes-and-their-catalytic-effects
#19
Fang Peng, Qi Wang, Rongjia Shi, Zeyi Wang, Xin You, Yuhong Liu, Fenghe Wang, Jay Gao, Chun Mao
A novel and efficient catalyst is one of the goals in the material field, and the involvement of nanoscience and technology has brought new vigor to the development of catalyst. This research aimed to develop a simple two-step route to fabricate Fe3O4@PS/PDA-Ag hybridnanotubes with size-controllable and highly dispersed silver nanoparticles (NPs). First, Fe3O4@PS nanotubes of a sound mechanical property were prepared using polystyrene (PS)/toluene solution containing highly dispersed oleic acid modified Fe3O4 particles in a commercial AAO template...
December 21, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27999999/cartilage-island-on-stapes-autologous-porp-in-the-hypoventilated-middle-ear
#20
Jeanette Hess-Erga, Bart Lambertus Henricus Jozef Engelen, Flemming Slinning Vassbotn
The most common technique in sound restoration of the middle ear is prosthetic surgery. Hypoventilation of the middle ear may cause adhesive otitis or atelectasis resulting in a higher risk of prosthetic extrusion rate and recurrence of the underlying cholesteatoma. We report long-term results using an island of tragal cartilage as an autologous PORP in selected patients with poor middle ear ventilation. Retrospective chart reviews were performed for procedures involving 52 patients between year 2000 and 2009...
December 20, 2016: European Archives of Oto-rhino-laryngology
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