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Brittany Ward, Max Ward, Boris Paskhover
BACKGROUND: Celebrities have long influenced the medical decisions of the general population. By analyzing Google search data using Google Trends, we measured the impact of highly publicized plastic surgery-related events on the interest level of the general population in specific search terms. Additionally, we investigated seasonal and geographic trends around interest in rhinoplasties, which is information that physicians and small surgical centers can use to optimize marketing decisions...
December 7, 2017: Aesthetic Plastic Surgery
Guido Filler, Misan Lee
IMPORTANCE: Changes in kidney function are typically followed by the sequential estimation of glomerular filtration rate (eGFR). Formulae for eGFR work well on a population basis, but there are well-known conditions where they do not work. OBJECTIVE: The purpose of this review is to summarize the existing literature on special populations in the pediatric age range and provide recommendations on how to estimate GFR in these populations. FINDINGS: The reliability of creatinine depends on muscle mass, while cystatin C (not widely available) is limited by inflammation and changes in protein catabolism...
December 7, 2017: Pediatric Nephrology: Journal of the International Pediatric Nephrology Association
Felipe Weidenbach Degrazia, Vicente Castelo Branco Leitune, Fernanda Visioli, Susana Maria Werner Samuel, Fabrício Mezzomo Collares
OBJECTIVE: The aim of this study was to evaluate physicochemical properties, long-term microtensile bond strength and cytotoxicity of methacrylate-based adhesive containing boron nitride nanotubes (BNNTs) as fillers. METHODS: A dental adhesive was formulated using BisGMA/HEMA, 66/33wt% (control). Inorganic BNNT fillers were incorporated into the adhesive at different concentrations (0.05, 0.075, 0.1 and 0.15wt%). Analyses of degree of conversion (DC), polymerization rate [Rp...
December 4, 2017: Dental Materials: Official Publication of the Academy of Dental Materials
Verena Preis, Sebastian Hahnel, Michael Behr, Martin Rosentritt
PURPOSE: High wear resistance of denture teeth preserves good occlusal relationship and sufficient parafunctional stability. This in-vitro investigation aimed to determine and compare the wear performance of different artificial denture teeth. METHODS: Denture teeth of fifteen commercial products (n=8/group) were loaded in a pin-on-block design using steatite antagonists (d=3mm). Cyclic loading (50 N) was applied for 120,000 loadings (f=1.2Hz) with simultaneous thermal cycling (distilled water, 5°C/55°C, 2min/cycle)...
December 4, 2017: Journal of Prosthodontic Research
Stacy A Wetmore, Ryan M McAdoo, Scott D Gronlund, Jeffrey S Neuschatz
Filler siphoning theory posits that the presence of fillers (known innocents) in a lineup protects an innocent suspect from being chosen by siphoning choices away from that innocent suspect. This mechanism has been proposed as an explanation for why simultaneous lineups (viewing all lineup members at once) induces better performance than showups (one-person identification procedures). We implemented filler siphoning in a computational model (WITNESS, Clark, Applied Cognitive Psychology 17:629-654, 2003), and explored the impact of the number of fillers (lineup size) and filler quality on simultaneous and sequential lineups (viewing lineups members in sequence), and compared both to showups...
2017: Cognitive Research: Principles and Implications
Aurelien L Noyer, Jorge E Esteves, Oliver P Thomson
Background: Diagnostic reasoning refers to the cognitive processes by which clinicians formulate diagnoses. Despite the implications for patient safety and professional identity, research on diagnostic reasoning in osteopathy remains largely theoretical. The aim of this study was to investigate the influence of perceived task difficulty on the diagnostic reasoning of students osteopaths. Methods: Using a single-blinded, cross sectional study design, sixteen final year pre-registration osteopathy students diagnosed two standardized cases under two context conditions (complex versus control)...
2017: Chiropractic & Manual Therapies
S Dinesh Kumar, K Mohamed Abudhahir, N Selvamurugan, S Vimalraj, R Murugesan, N Srinivasan, A Moorthi
The improvisation of the treatment procedures for treating the various kind of bone defects such as, bone or dental trauma and for diseases such as osteoporosis, osteomyelitis etc., need the suitable and promising biomaterials with resemblance of bone components. Bioactive glass ceramic (BGC) has recently acquired great attention as the most promising biomaterials; hence it has been widely applied as a filler material for bone tissue regeneration. Because it elicts specific biological responses after implantation in addition more potential in formation of strong interface with both hard and soft tissues by dissolution of calcium and phosphate ions...
February 1, 2018: Materials Science & Engineering. C, Materials for Biological Applications
Dalong He, Yao Wang, Silong Song, Song Liu, Yuan Deng
Design of composites with ordered fillers arrangement results in anisotropic performances with greatly enhanced properties along specific direction, which is a powerful tool to optimize physical properties of composites. Well aligned core-shell SiC@SiO2 whiskers in poly(vinylidene fluoride) (PVDF) matrix has been achieved via a modified spinning approach. Due to high aspect ratio of SiC whiskers, strong anisotropy and significant enhancement in dielectric constant were observed with permittivity 854 along parallel direction vs...
December 5, 2017: ACS Applied Materials & Interfaces
Yayuan Liu, Guangmin Zhou, Kai Liu, Yi Cui
The development of next-generation lithium-based rechargeable batteries with high energy density, low cost, and improved safety is a great challenge with profound technological significance for portable electronics, electric vehicles, and grid-scale energy storage. Specifically, advanced lithium battery chemistries call for a paradigm shift to electrodes with high Li to host ratio based on a conversion or alloying mechanism, where the increased capacity is often accompanied by drastic volumetric changes, significant bond breaking, limited electronic/ionic conductivity, and unstable electrode/electrolyte interphase...
December 5, 2017: Accounts of Chemical Research
Leonid A Nikiforov, Tatinana A Okhlopkova, Iullia V Kapitonova, Sardana A Sleptsova, Aitalina A Okhlopkova, Ee Le Shim, Jin-Ho Cho
In this study, the reinforcement of ultrahigh-molecular-weight polyethylene (UHMWPE) with biotite was investigated. The biotite filler was mechanically activated with different dry surfactants to improve its compatibility with UHMWPE and decrease agglomeration among biotite particles. Alkyldimethylbenzylammonium chloride (ADBAC) and cetyltrimethylammonium bromide (CTAB) were selected as cationic surfactants. The tensile strength of composites containing 1 wt % of CTAB-treated biotite was increased by 30% relative to those with untreated biotite, but was unchanged with ADBAC treatment of the same biotite content...
December 5, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
M A Lopez, M Casale, V Candotto, R Papalia, F Bressi, F Carinci
In the context of the trans crestal maxillary sinus lift, a wide variety of biomaterials have been used to fill the sub-antral space over the years. The materials that have a pasty consistency and are smooth and free from lumps are the most suitable to come into contact with the Schneiderian membrane which, if torn, cannot perform its graft containment function. In this study, a micronized heterologous bone in a collagen matrix of two different percentages was used in order to fill the maxillary sinus. Before using biomaterial as filler, a spray form of hyaluronic acid was used to disinfect the surgical site before and after the surgery, along with more consistent and pasty form of gel of hyaluronic acid being used in order to facilitate the detachment of the membrane...
December 4, 2017: Journal of Biological Regulators and Homeostatic Agents
M Pascali, D Quarato, T Marianetti, F Carinci
Contour enhancements of the midface make up a dominant aspect of aesthetic surgery. The goal of midface rejuvenation is to decrease the prominence of grooves and creases as well as to provide volume to atrophied tissue. There are various options, including autologous tissue grafts, allogenic tissue grafts and alloplastic materials. In turn, patients’ needs have led to an increasing trend of less invasive treatments. In the present study, 82 implants were used for midface augmentation in 41 patients (38 women, 3 men) between January 2014 and January 2016...
December 4, 2017: Journal of Biological Regulators and Homeostatic Agents
H J Kim, S B Kwon, K U Whang, J S Lee, Y L Park, S Y Lee
BACKGROUND: Hyaluronidase injection is a commonly performed treatment for overcorrection or misplacement of hyaluronic acid (HA) filler. Many patients often wants the HA filler reinjection after the use of hyaluronidase, though the optimal timing of reinjection of HA filler still remains unknown. OBJECTIVES: To provide the optimal time interval between hyaluronidase injections and HA filler reinjections. METHODS: 6 Sprague-Dawley rats were injected with single monophasic HA filler...
February 16, 2017: Journal of Cosmetic and Laser Therapy: Official Publication of the European Society for Laser Dermatology
Sedef Tamburaci, Funda Tihminlioglu
In this study, novel composites membranes composed of chitosan matrix and polyhedral oligomeric silsesquioxanes (POSS) were fabricated by solvent casting method. The effect of POSS loading on the mechanical, morphological, chemical, thermal and surface properties, and cytocompatibility of composite membranes were investigated and observed by tensile test, atomic force microscopy (AFM), Fourier transform infrared spectroscopy (FTIR), thermal gravimetric analysis (TGA), protein adsorption assay, air/water contact angle analysis and WST-1 respectively...
December 1, 2017: Journal of Materials Science. Materials in Medicine
Thais C Brito-Oliveira, Marina Bispo, Izabel C F Moraes, Osvaldo H Campanella, Samantha C Pinho
The objective of this study was to investigate the feasibility of producing cold-set emulsion filled gels (EFG), using soy protein isolate (SPI) and xanthan gum (XG) and incorporating curcumin-loaded solid lipid microparticles (SLM). For this purpose, the formulation GXG (15%, w/v SPI, 0.1%, w/v XG and 5mM CaCl2) was selected for the production of EFG. A comparative study on the rheological and microstructural properties of non-filled gels and EFG revealed that SLM stabilized with Tween 80-Span 80 behaved as active fillers in the gel matrix, increasing the Young's modulus from 1...
December 2017: Food Research International
Mark L Jewell
No abstract text is available yet for this article.
November 28, 2017: Aesthetic Surgery Journal
Philipe Berros, Blair K Armstrong, Pauline Foti, Ronald Mancini
PURPOSE: "Selfie" photography is increasing among teenagers, accentuates congenital anomalies, and impacts self-confidence. Tear trough deformity is most commonly due to aging, but also occurs as a congenital anomaly and can be a major source of insecurity and embarrassment. OBJECTIVE: The purpose of this study is to show the efficacy and safety of hyaluronic acid gel filler in a teenage patient with congenital tear trough deformity. MATERIAL AND METHOD: We describe the case of a teenager who underwent hyaluronic acid gel filling to the tear trough deformity at age 14 years...
November 27, 2017: Ophthalmic Plastic and Reconstructive Surgery
Kunneng Liang, Shimeng Xiao, Michael D Weir, Chongyun Bao, Huaibing Liu, Lei Cheng, Xuedong Zhou, Jiyao Li, Hockin H K Xu
Patients with dry mouth often have an acidic oral environment lacking saliva to provide calcium (Ca) and phosphate (P) ions. There has been no report on tooth remineralization in acidic pH4 and CaP ion-lacking solutions. The objective of this study was to develop a novel method of combining poly(amido amine) (PAMAM) with adhesive containing nanoparticles of amorphous calcium phosphate (NACP) for dentin remineralization in pH4 and CaP-lacking solution for the first time. Demineralized dentin was tested in four groups: (1) dentin control, (2) dentin with PAMAM, (3) dentin with NACP adhesive, (4) dentin with PAMAM + NACP adhesive...
November 28, 2017: Journal of Biomedical Materials Research. Part B, Applied Biomaterials
Elisa Bellini, Michele P Grieco, Edoardo Raposio
Introduction: Adipose grafting has undergone significant changes over time. Many different techniques have been followed by trying to improve the quality of the lipoaspirate and the survival of the fat graft after implantation. Material and methods: The purpose of this review is to analyse the historical evolution of the surgical harvesting and implant technique, describing the changes that have brought significant improvements, revolutionizing the aesthetic and functional results obtainable...
December 2017: Annals of Medicine and Surgery
Martin Ek, Michael A Filler
Functional materials and devices require nanoscale control of morphology, crystal structure, and composition. Vapor-liquid-solid (VLS) crystal growth and its related growth modes enable the synthesis of 1D nanostructures, commonly called "nanowires", where the necessary nanoscale heterogeneity can be encoded axially. During the VLS process, a seed particle collects atoms and directs the nucleation of crystalline material. Modulating the delivery of growth species or conditions permits compositional and/or structural encoding...
November 29, 2017: Accounts of Chemical Research
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