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https://www.readbyqxmd.com/read/28087584/emergence-of-klebsiella-variicola-positive-for-ndm-9-a-variant-of-new-delhi-metallo-%C3%AE-lactamase-in-an-urban-river-in-south-korea
#1
Doris Y W Di, Jeonghwan Jang, Tatsuya Unno, Hor-Gil Hur
OBJECTIVES: To examine the presence of pathogenic bacteria carrying New Delhi metallo-β-lactamase in the environment and to characterize the genome structures of these strains. METHODS: Phenotypic screening of antimicrobial susceptibility and WGS were conducted on three Klebsiella variicola strains possessing NDM-9 isolated from an urban river. RESULTS: Three carbapenem-resistant K. variicola isolated from Gwangju tributary were found to possess blaNDM-9 genes...
January 12, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/28086858/the-influence-of-adding-modified-zirconium-oxide-titanium-dioxide-nano-particles-on-mechanical-properties-of-orthodontic-adhesive-an-in-vitro-study
#2
Nayef H Felemban, Mohamed I Ebrahim
BACKGROUND: The purpose of this in-vitro study was to examine the effect of incorporating different concentrations of Zirconium oxide-Titanium dioxide (ZrO2-TiO2) nanoparticles, which can have antibacterial properties, on the mechanical properties of an orthodontic adhesive. METHODS: ZrO2-TiO2 (Zirconium oxide, HWNANO, Hongwu International Group Ltd, China) -Titanium dioxide, Nanoshell, USA) nanopowder were incorporated into orthodontic adhesive (Transbond XT, 3 M Unitek, Monrovia, USA) with different concentrations (0...
January 13, 2017: BMC Oral Health
https://www.readbyqxmd.com/read/28077886/effect-of-dental-chair-light-on-enamel-bonding-of-orthodontic-brackets-using-light-cure-based-adhesive-system-an-in-vitro-study
#3
Anil Tiwari, Tarulatha Shyagali, Sarvraj Kohli, Rishi Joshi, Abhishek Gupta, Rana Tiwari
AIM: The aim of this in vitro study was to evaluate the influence of the Dental chair light on the bond strength of light cured composite resin. MATERIALS AND METHODS: Sixty therapeutically extracted human premolar teeth were randomly allocated to two groups of 30 specimens each. In both groups light cured composite resin (Transbond XT) and MBT premolar metal brackets (3M Unitek) was used to bond brackets. In group I and II light curing was done using Light-emitting diode light curing units without and with the dental chair light respectively...
October 2016: Acta Informatica Medica: AIM
https://www.readbyqxmd.com/read/28076292/445-nm-diode-laser-assisted-debonding-of-self-ligating-ceramic-brackets
#4
Steffen Stein, Alexander Kleye, Michael Schauseil, Andreas Hellak, Heike Korbmacher-Steiner, Andreas Braun
OBJECTIVES: This study determined the influence of irradiation on aesthetic ceramic brackets with a novel 445-nm diode laser prior to debonding on the bracket failure mode. MATERIALS AND METHODS: Thirty ceramic brackets (In-Ovation® C, GAC) were standard-bonded to the oral and buccal planed and polished enamel surfaces of 15 caries-free human 3rd molars. Prior to study-blinded debonding, the brackets in the laser group were irradiated with the diode laser (SIROLaser Blue®, Sirona), while the irradiation was simulated within the conventional group...
January 11, 2017: Biomedizinische Technik. Biomedical Engineering
https://www.readbyqxmd.com/read/28073624/european-college-of-orthodontics-commission-of-affiliation-and-titularisation
#5
Alexis Moreau
: Date of birth: 2/8/1982; sex: male. A. PRETREATMENT RECORDS: 25 years; 7/3/2008. DIAGNOSIS: Very severe Class III malocclusion in adult dentition in hyperdivergent facial pattern; Sagittal dimension: skeletal and dental Class II, severe alveolar retrusion of the mandibular incisors, negative overjet (-11mm); transverse dimension: Class III-related bilateral crossbite with no transverse maxillary deficiency; vertical dimension: incisor overbite, increased height of the lower facial third; Teeth missing prior to treatment: 16-26...
January 7, 2017: International Orthodontics
https://www.readbyqxmd.com/read/28068189/intrapulpal-temperature-increase-during-er-yag-laser-aided-debonding-of-ceramic-brackets
#6
Hilal Yilanci, Zeynep Beyza Yildirim, Sabri Ilhan Ramoglu
OBJECTIVE: The purpose of this study was to evaluate the temperature changes in the pulp chamber while using a newly introduced application of Er:YAG laser to debond ceramic brackets in a study model with a pulpal circulation with and without thermocycled samples. BACKGROUND DATA: An esthetic alternative to stainless steel brackets, ceramic brackets have been proposed. However, because of their low fracture resistance and high bond strengths, ceramic brackets can cause a problem when they are being removed using conventional techniques...
January 9, 2017: Photomedicine and Laser Surgery
https://www.readbyqxmd.com/read/28066875/evaluating-the-effects-of-consolidation-on-intrusion-and-retraction-using-temporary-anchorage-devices-a-fem-study
#7
Monica Namburi, Sleevaraju Nagothu, Chetan S Kumar, N Chakrapani, C H Hanumantharao, Supradeep K Kumar
BACKGROUND: Extraction of premolars and retracting the anterior teeth using mini-implants and anterior retraction hooks became advent now a day. In such treatments, consolidation of arches is not done in regular practice. So, the present study is concentrated on effects of consolidation in two implant and three implant combinations of retraction and intrusion. METHODS: A three-dimensional FEM model of maxillary teeth and periodontal ligament housed in the alveolar bone with the first premolars extracted is generated with appropriate number of elements and nodes...
December 2017: Progress in Orthodontics
https://www.readbyqxmd.com/read/28061421/low-cost-and-facile-fabrication-of-a-paper-based-capillary-electrophoresis-microdevice-for-pathogen-detection
#8
Jee Won Lee, Dohwan Lee, Yong Tae Kim, Eun Yeol Lee, Do Hyun Kim, Tae Seok Seo
This paper describes the development of a novel paper-based capillary electrophoresis (pCE) microdevice using mineral paper, which is durable, oil and tear resistant, and waterproof. The pCE device is inexpensive (~$1.6 per device for materials), simple to fabricate, lightweight, and disposable, so it is more adequate for point-of-care (POC) pathogen diagnostics than a conventional CE device made of glass, quartz, silicon or polymer. In addition, the entire fabrication process can be completed within 1h without using expensive clean room facilities and cumbersome photolithography procedures...
December 28, 2016: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/28050507/shear-bond-strength-of-ceramic-brackets-with-different-base-designs-comparative-in-vitro-study
#9
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/28049305/intermolecular-dissociation-energies-of-dispersively-bound-1-naphthol%C3%A2-cycloalkane-complexes
#10
Surajit Maity, Philipp Ottiger, Franziska A Balmer, Richard Knochenmuss, Samuel Leutwyler
Intermolecular dissociation energies D0(S0) of the supersonic jet-cooled complexes of 1-naphthol (1NpOH) with cyclopentane, cyclohexane, and cycloheptane were determined to within <0.5% using the stimulated-emission pumping resonant two-photon ionization method. The ground state D0(S0) values are bracketed as 20.23±0.07 kJ/mol for 1NpOH⋅cyclopentane, 20.34±0.04 kJ/mol for 1NpOH⋅cyclohexane, and 22.07±0.10 kJ/mol for two isomers of 1NpOH⋅cycloheptane. Upon S0→S1 excitation of the 1-naphthol chromophore, the dissociation energies of the 1NpOH⋅cycloalkane complexes increase from 0...
December 28, 2016: Journal of Chemical Physics
https://www.readbyqxmd.com/read/28048486/th-cd-bra-05-first-water-calorimetric-dw-measurement-and-direct-measurement-of-magnetic-field-correction-factors-kq-b-in-a-1-5-t-b-field-of-an-mri-linac
#11
L de Prez, J de Pooter, B Jansen, J Wolthaus, B van Asselen, S Woodings, T Soest, J Kok, B Raaymakers
PURPOSE: Reference dosimetry in MR-guided radiotherapy is performed in the presence of a B-field. As a consequence the response of ionization chambers changes considerably and depends on parameters not considered in traditional reference dosimetry. Therefore future Codes of Practices need ionization chamber correction factors to correct for both the change in beam quality and the presence of a B-field. The objective was to study the feasibility of water calorimetric absorbed-dose measurements in a 1...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28046363/we-h-brc-09-simulated-errors-in-mock-radiotherapy-plans-to-quantify-the-effectiveness-of-the-physics-plan-review
#12
O Gopan, A Kalet, W Smith, K Hendrickson, M Kim, L Young, M Nyflot, A Chvetsov, M Phillips, E Ford
PURPOSE: A standard tool for ensuring the quality of radiation therapy treatments is the initial physics plan review. However, little is known about its performance in practice. The goal of this study is to measure the effectiveness of physics plan review by introducing simulated errors into "mock" treatment plans and measuring the performance of plan review by physicists. METHODS: We generated six mock treatment plans containing multiple errors. These errors were based on incident learning system data both within the department and internationally (SAFRON)...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28039549/expression-of-talaromyces-thermophilus-lipase-gene-in-trichoderma-reesei-by-homologous-recombination-at-the-cbh1-locus
#13
Xu Zhang, Liming Xia
CBH1 (cellobiohydrolase) comprises the majority of secreted proteins by Trichoderma reesei. For expression of Talaromyces thermophilus lipase gene in T. reesei, a self-designed CBH1 promoter was applied to drive the lipase gene expression cassette which was bracketed by flanking sequences of cbh1 gene for homologous recombination. Protoplast and Agrobacterium-mediated plasmid transformations were performed and compared, resultantly, transformation mediated by Agrobacterium was overall proved to be more efficient...
December 30, 2016: Journal of Industrial Microbiology & Biotechnology
https://www.readbyqxmd.com/read/28035838/efficacy-of-auxiliary-devices-for-removal-of-fluorescent-residue-after-bracket-debonding
#14
Rafael Santos Rocha, Fabio Martins Salomão, Lucas Silveira Machado, Renato Herman Sundfeld, Ticiane Cestari Fagundes
OBJECTIVE: To evaluate four protocols for removal of fluorescent materials after bracket debonding. MATERIALS AND METHODS: Resin removal from 40 bovine enamel surfaces was performed according to groups (n = 10): conventional (C), white LED (W), LED that evidenced fluorescence (F), and fluorescent lens (FL). The following analyses were performed: sample thickness, superficial area of resin residue, and areas of resin residue or worn enamel in depth. ANOVA and Tukey tests were used to analyze sample thickness (P ≤ ...
December 30, 2016: Angle Orthodontist
https://www.readbyqxmd.com/read/28035130/the-influence-of-different-types-of-brackets-and-efficacy-of-two-chlorhexidine-mouthwashes-on-oral-hygiene-and-the-incidence-of-white-spot-lesions-in-adolescents-during-the-orthodontic-therapy
#15
Sanja Jurišić, Davorin Kozomara, Hrvoje Jurić, Željko Verzak, Gordan Jurišić
BACKGROUND: To detect the effect of two different types of brackets (ceramic and stainless steel) and investigate the effectiveness of two chlorhexidine mouthwashes 0.2% (CHX) on oral hygiene status and incidence of white spot lesions (WSLs) in adolescents wearing fixed orthodontic appliance. SUBJECTS AND METHODS: One hundred and twenty subjects (aged 11 to 18 years, mean age 14.5 years) were divided into six equal groups according to brackets type and to different mouthwashes: Group 1: metal brackets and conventional CHX, Group 2: metal brackets and CHX with anti-discoloration system (CHX-ADS), Group 3: ceramic brackets and conventional CHX, Group 4: ceramic brackets and CHX-ADS, Group 5: metal brackets and water correction flavors mouthwash (placebo), Group 6: ceramic brackets and placebo...
December 2016: Psychiatria Danubina
https://www.readbyqxmd.com/read/28030778/controllability-analysis-of-the-neural-mass-model-with-dynamic-parameters
#16
Xian Liu, Jing Gao, Guan Wang, Zhi-Wang Chen
The development of control technology for the brain is of potential significance to the prevention and treatment of neuropsychiatric disorders and the improvement of humans' mental health. A controllability analysis of the brain is necessary to ensure the feasibility of the brain control. In this letter, we investigate the influences of dynamical parameters on the controllability in the neural mass model by using controllability indices as quantitative indicators. The indices are obtained by computing Lie brackets and condition numbers of the system model...
December 28, 2016: Neural Computation
https://www.readbyqxmd.com/read/28027683/adjustment-modes-in-the-trajectory-of-progressive-multiple-sclerosis-a-qualitative-study-and-conceptual-model
#17
Angeliki Bogosian, Myfanwy Morgan, Felicity L Bishop, Fern Day, Rona Moss-Morris
OBJECTIVE: We examined cognitive and behavioural challenges and adaptations for people with progressive multiple sclerosis (MS) and developed a preliminary conceptual model of changes in adjustment over time. DESIGN: Using theoretical sampling, 34 semi-structured interviews were conducted with people with MS. Participants were between 41 and 77 years of age. Thirteen were diagnosed with primary progressive MS and 21 with secondary progressive MS. Data were analysed using a grounded theory approach...
December 27, 2016: Psychology & Health
https://www.readbyqxmd.com/read/28025929/hemophilia-management-via-data-collection-and-reporting-initial-findings-from-the-comprehensive-care-sustainability-collaborative
#18
Michael D Tarantino, Vanita K Pindolia
BACKGROUND: Despite being a rare disorder, hemophilia represents a significant driver of health care resource utilization and requires expert hematologic and multidisciplinary services to achieve optimal outcomes. Since their inception nearly 40 years ago, hemophilia treatment centers (HTCs) have served as centers of excellence in providing the intensive care and ancillary services necessary for this unique patient base; however, the full capabilities of these centers may be underused in the current framework of managed care, largely because of a lack of communication and information shared between payers and HTC stakeholders...
January 2017: Journal of Managed Care & Specialty Pharmacy
https://www.readbyqxmd.com/read/28024773/comprehensive-treatment-approach-for-condylar-hyperplasia-and-mandibular-crowding-with-custom-lingual-braces-and-2-jaw-surgery
#19
Panagiotis G Kyteas, W Stuart McKenzie, Peter D Waite, Chung H Kau
We report on the successful treatment of a 32-year-old woman with condylar hyperplasia and severe mandibular crowding. In addition, her maxilla was canted to the right, her mandibular midline and chin point deviated to the left, and her maxillary canines were missing. The treatment plan included (1) aligning and leveling the teeth in both arches, (2) correcting overbite and overjet, (3) performing LeFort I osteotomy and bilateral split osteotomies, and (4) correcting the malocclusion postsurgically. The orthodontic treatment was performed with custom lingual braces and clear brackets, and virtual surgical planning techniques were used to plan the orthognathic surgery...
January 2017: American Journal of Orthodontics and Dentofacial Orthopedics
https://www.readbyqxmd.com/read/28013238/genetic-characterization-of-plasmid-mediated-quinolone-resistance-gene-qnrs2-in-pseudoalteromonas-and-shewanella-isolates-from-seawater
#20
Jing-Yi Zhao, Shu-Mei Zhao, Xiao-Dong Mu, Zijun Xiao
Three qnrS2-containing isolates of Pseudoalteromonas and Shewanella were collected from the seawater samples of Qingdao in China during 2014. They displayed resistance to ampicillin, ciprofloxacin, kanamycin, nalidixic acid and sulfamethoxazole. The qnrS2 genes were identified in the chromosomes of Pseudoalteromonas strain E8 and S16, and in a 140-kb plasmid in Shewanella strain S14, respectively. In addition, two copies of qnrS2 were identified in the strain E8. Sequence analyses revealed that there was an identical DNA segment located in the downstream of qnrS2 in strain S14 and E8, coding for a TetR transcriptional regulator, two putative integrases and a hypothetical protein...
December 23, 2016: FEMS Microbiology Letters
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