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https://www.readbyqxmd.com/read/27925236/stresses-and-strains-analysis-using-different-palatal-expander-appliances-in-upper-jaw-and-midpalatal-suture
#1
Larissa Carvalho Trojan, Libardo Andrés González-Torres, Ana Claudia Moreira Melo, Estevam Barbosa de Las Casas
Rapid maxillary expansion (RME) is the technique of increasing the transverse dimension of the upper jaw using lateral forces applied by palatal expander. Usually, this palatal appliance is anchored on posterior teeth. The purposes of this computer simulation study were to analyze the stress and strain distribution generated in the maxilla, mainly in midpalatal suture (MPS), during RME by tooth-borne and bone-borne expanders and to study the correlation between mechanical strain and Wolff's Law. The analysis was performed with finite element models developed based on Cone Beam computed tomography (CT)...
December 7, 2016: Artificial Organs
https://www.readbyqxmd.com/read/27920613/core-and-complementary-chiropractic-lowering-barriers-to-patient-utilization-of-services
#2
John J Triano, Marion McGregor
OBJECTIVE: The use of chiropractic services has stalled while interest in accessing manipulation services is rising. The purpose of this paper is to consider this dilemma in the context of the dynamics of professional socialization, surveys of public attitudes, and a potential strategic action. DISCUSSION: This is a reflection work grounded in the literature on professional socialization and the attitudes held regarding chiropractic in modern society, to include its members, and in original data on training programs...
December 2016: Journal of Chiropractic Humanities
https://www.readbyqxmd.com/read/27919315/implication-of-alternative-minimal-clinically-important-difference-threshold-estimation-methods-on-technology-assessment
#3
Diana Brixner, Eli O Meltzer, Kellie Morland, Cathryn A Carroll, Ullrich Munzel, Brian J Lipworth
OBJECTIVES: Various minimal clinically important difference (MCID) threshold estimation techniques have been applied to seasonal allergic rhinitis (SAR). The objectives of this study are to (i) assess the difference in magnitude of alternative SAR MCID threshold estimates and (ii) evaluate the impact of alternative MCID estimates on health technology assessment (HTA). METHODS: Data describing change from baseline of the reflective Total Nasal Symptom Score (rTNSS) for four intranasal SAR treatments were obtained from United States Food and Drug Administration-approved prescribing information...
December 6, 2016: International Journal of Technology Assessment in Health Care
https://www.readbyqxmd.com/read/27918835/the-ubiquitous-self-what-the-properties-of-self-bias-tell-us-about-the-self
#4
Jie Sui, Glyn W Humphreys
People show systematic biases in perception, memory, and attention to favor information related to themselves over information related to other people. Researchers have examined these biases in order to throw light on the nature of the self. We review this evidence in memory, face recognition, and simple perceptual matching tasks through objective measures of self-biases. We argue that the self serves as a stable anchor across different forms of judgment and that referring a stimulus to ourselves enhances the binding of stimulus features at different stages of processing (e...
December 5, 2016: Annals of the New York Academy of Sciences
https://www.readbyqxmd.com/read/27918290/nacre-mimetic-bulk-lamellar-composites-reinforced-with-high-aspect-ratio-glass-flakes
#5
Selen N Gurbuz Guner, Arcan F Dericioglu
Nacre-mimetic epoxy matrix composites reinforced with readily available micron-sized high aspect ratio C-glass flakes were fabricated by a relatively simple, single-step, scalable, time, cost and man-power effective processing strategy: hot-press assisted slip casting (HASC). HASC enables the fabrication of preferentially oriented two-dimensional inorganic reinforcement-polymer matrix bulk lamellar composites with a micro-scale structure resembling the brick-and-mortar architecture of nacre. By applying the micro-scale design guideline found in nacre and optimizing the relative volume fractions of the reinforcement and the matrix as well as by anchoring the brick-and-mortar architecture, and tailoring the interface between reinforcements and the matrix via silane coupling agents, strong, stiff and tough bio-inspired nacre-mimetic bulk composites were fabricated...
December 5, 2016: Bioinspiration & Biomimetics
https://www.readbyqxmd.com/read/27918119/ferroelectric-enhanced-polysulfide-trapping-for-lithium-sulfur-battery-improvement
#6
Keyu Xie, You You, Kai Yuan, Wei Lu, Kun Zhang, Fei Xu, Mao Ye, Shanming Ke, Chao Shen, Xierong Zeng, Xiaoli Fan, Bingqing Wei
A brand new polysulfide entrapping strategy based on the ferroelectric effect has been demonstrated for the first time. By simply adding the nano-ferroelectrics (BaTiO3 nanoparticles) into the cathode, the heteropolar polysulfides can be anchored within the cathode due to the internal electric field originated from the spontaneous polarization BaTiO3 nanoparticles, and thus significantly improving the cycle stability of Li-S batteries.
December 5, 2016: Advanced Materials
https://www.readbyqxmd.com/read/27914467/impact-of-the-occurrence-of-a-response-shift-on-the-determination-of-the-minimal-important-difference-in-a-health-related-quality-of-life-score-over-time
#7
Ahmad Ousmen, Thierry Conroy, Francis Guillemin, Michel Velten, Damien Jolly, Mariette Mercier, Sylvain Causeret, Jean Cuisenier, Olivier Graesslin, Zeinab Hamidou, Franck Bonnetain, Amélie Anota
BACKGROUND: An important challenge of the longitudinal analysis of health-related quality of life (HRQOL) is the potential occurrence of a Response Shift (RS) effect. While the impact of RS effect on the longitudinal analysis of HRQOL has already been studied, few studies have been conducted on its impact on the determination of the Minimal Important Difference (MID). This study aims to investigate the impact of the RS effect on the determination of the MID over time for each scale of both EORTC QLQ-C30 and QLQ-BR23 questionnaires in breast cancer patients...
December 3, 2016: Health and Quality of Life Outcomes
https://www.readbyqxmd.com/read/27913144/the-effect-of-o-glcnacylation-on-hnrnp-a1-translocation-and-interaction-with-transportin1
#8
Shira Roth, Isam Khalaila
The heterogeneous nuclear ribonucleoprotein A1 (hnRNP A1) is a major pre-mRNA binding protein involved in transcription and translation. Although predominantly nuclear, hnRNP A1 shuttles rapidly between the nucleus and the cytosol, delivering its anchored pre-mRNA for further processing. Translocation is important for hnRNP A1 to accomplish its transcriptional and translational roles. Transportin1 (Trn1), a translocation protein, facilitates the translocation of hnRNP A1 back to the nucleus. Moreover, phosphorylation of serine residues at hnRNP A1 C-terminal domain affects its translocation...
November 29, 2016: Experimental Cell Research
https://www.readbyqxmd.com/read/27912125/feooh-graphene-oxide-nanocomposites-for-fluoride-removal-from-water-acetate-mediated-nano-feooh-growth-and-adsorption-mechanism
#9
Liyuan Kuang, Yuyang Liu, Dandan Fu, Yaping Zhao
Fluoride adsorption capacity in water matrices depends highly on the properties of each component of the adsorption system, the most important one of these is the physchemical properties of the adsorbent. Nanoparticle Goethite anchored onto graphene oxide (FeOOH+Ac/GO) and rice spike-like Akaganeite anchored onto graphene oxide (FeOOH/GO) were synthesized via an in-situ hydrolysis procedure and compared their fluoride adsorption performances in order to address the effect of crystalline structure growth induced by acetate sodium (NaAc), one important organic ligand in water and soil...
November 21, 2016: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/27909550/information-seeking-and-anxiety-among-colonoscopy-na%C3%A3-ve-adults-direct-to-colonoscopy-vs-traditional-consult-first-pathways
#10
Jocelyn A Silvester, Harmandeep Kalkat, Lesley A Graff, John R Walker, Harminder Singh, Donald R Duerksen
AIM: To investigate the effects of direct to colonoscopy pathways on information seeking behaviors and anxiety among colonoscopy-naïve patients. METHODS: Colonoscopy-naïve patients at two tertiary care hospitals completed a survey immediately prior to their scheduled outpatient procedure and before receiving sedation. Survey items included clinical pathway (direct or consult), procedure indication (cancer screening or symptom investigation), telephone and written contact from the physician endoscopist office, information sources, and pre-procedure anxiety...
November 16, 2016: World Journal of Gastrointestinal Endoscopy
https://www.readbyqxmd.com/read/27905909/development-of-a-measure-of-model-fidelity-for-mental-health-crisis-resolution-teams
#11
Brynmor Lloyd-Evans, Gary R Bond, Torleif Ruud, Ada Ivanecka, Richard Gray, David Osborn, Fiona Nolan, Claire Henderson, Oliver Mason, Nicky Goater, Kathleen Kelly, Gareth Ambler, Nicola Morant, Steve Onyett, Danielle Lamb, Sarah Fahmy, Ellie Brown, Beth Paterson, Angela Sweeney, David Hindle, Kate Fullarton, Johanna Frerichs, Sonia Johnson
BACKGROUND: Crisis Resolution Teams (CRTs) provide short-term intensive home treatment to people experiencing mental health crisis. Trial evidence suggests CRTs can be effective at reducing hospital admissions and increasing satisfaction with acute care. When scaled up to national level however, CRT implementation and outcomes have been variable. We aimed to develop and test a fidelity scale to assess adherence to a model of best practice for CRTs, based on best available evidence. METHODS: A concept mapping process was used to develop a CRT fidelity scale...
December 1, 2016: BMC Psychiatry
https://www.readbyqxmd.com/read/27904965/chitosan-hydrogel-microspheres-an-effective-covalent-matrix-for-crosslinking-of-soluble-dextranase-to-increase-stability-and-recycling-efficiency
#12
Faiza Shahid, Afsheen Aman, Muhammad Asif Nawaz, Asad Karim, Shah Ali Ul Qader
Dextranase is a unique biocatalyst that has high specificity and stereo-selectivity towards a complex biopolymer known as dextran. Dextranase has wide industrial application, but most of the time harsh environmental conditions adversely affect the functionality and stability of the enzyme. To overcome this issue, a covalent cross-linking immobilization method was adapted in the current study utilizing a nontoxic and biocompatible matrix known as chitosan. Chitosan hydrogel microspheres were synthesized using chitosan which exhibited noteworthy physical and mechanical strength...
November 30, 2016: Bioprocess and Biosystems Engineering
https://www.readbyqxmd.com/read/27903817/effects-of-orthostatic-hypotension-on-cognition-in-parkinson-disease
#13
Justin Centi, Roy Freeman, Christopher H Gibbons, Sandy Neargarder, Alexander O Canova, Alice Cronin-Golomb
OBJECTIVE: To investigate the relation between orthostatic hypotension (OH) and posture-mediated cognitive impairment in Parkinson disease (PD) using a cross-sectional and within-group design. METHODS: Individuals without dementia with idiopathic PD included 18 with OH (PDOH) and 19 without OH; 18 control participants were also included. Neuropsychological tests were conducted in supine and upright-tilted positions. Blood pressure was assessed in each posture. RESULTS: The PD groups performed similarly while supine, demonstrating executive dysfunction in sustained attention and response inhibition, and reduced semantic fluency and verbal memory (encoding and retention)...
November 30, 2016: Neurology
https://www.readbyqxmd.com/read/27903763/enzyme-activation-through-the-utilization-of-intrinsic-dianion-binding-energy
#14
REVIEW
T L Amyes, M M Malabanan, X Zhai, A C Reyes, J P Richard
We consider 'the proposition that the intrinsic binding energy that results from the noncovalent interaction of a specific substrate with the active site of the enzyme is considerably larger than is generally believed. An important part of this binding energy may be utilized to provide the driving force for catalysis, so that the observed binding energy represents only what is left over after this utilization' [Jencks,W.P. (1975) Adv. Enzymol. Relat. Areas. Mol. Biol., 43: , 219-410]. The large ~12 kcal/mol intrinsic substrate phosphodianion binding energy for reactions catalyzed by triosephosphate isomerase (TIM), orotidine 5'-monophosphate decarboxylase and glycerol-3-phosphate dehydrogenase is divided into 4-6 kcal/mol binding energy that is expressed on the formation of the Michaelis complex in anchoring substrates to the respective enzyme, and 6-8 kcal/mol binding energy that is specifically expressed at the transition state in activating the respective enzymes for catalysis...
November 29, 2016: Protein Engineering, Design & Selection: PEDS
https://www.readbyqxmd.com/read/27903740/protective-t-cell-responses-featured-by-concordant-recognition-of-middle-east-respiratory-syndrome-coronavirus-derived-cd8-t-cell-epitopes-and-host-mhc
#15
William J Liu, Jiaming Lan, Kefang Liu, Yao Deng, Yanfeng Yao, Shaolian Wu, Hong Chen, Lingling Bao, Haifeng Zhang, Min Zhao, Qihui Wang, Lingxia Han, Yan Chai, Jianxun Qi, Jincun Zhao, Songdong Meng, Chuan Qin, George F Gao, Wenjie Tan
The coordinated recognition of virus-derived T cell epitopes and MHC molecules by T cells plays a pivotal role in cellular immunity-mediated virus clearance. It has been demonstrated that the conformation of MHC class I (MHC I) molecules can be adjusted by the presented peptide, which impacts T cell activation. However, it is still largely unknown whether the conformational shift of MHC I influences the protective effect of virus-specific T cells. In this study, utilizing the Middle East respiratory syndrome coronavirus-infected mouse model, we observed that through the unusual secondary anchor Ile5, a CD8(+) T cell epitope drove the conformational fit of Trp(73) on the α1 helix of murine MHC I H-2K(d) In vitro renaturation and circular dichroism assays indicated that this shift of the structure did not influence the peptide/MHC I binding affinity...
November 30, 2016: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/27901058/a-kinase-anchoring-protein-4-akap4-is-an-erk1-2-substrate-and-a-switch-molecule-between-camp-pka-and-pkc-erk1-2-in-human-spermatozoa
#16
Liat Rahamim Ben-Navi, Tal Almog, Zhong Yao, Rony Seger, Zvi Naor
Mammalian spermatozoa undergo capacitation and acrosome reaction in order to fertilize the egg. The PKC-ERK1/2 pathway plays an important role in human spermatozoa motility, capacitation and the acrosome reaction. Here we demonstrate that ERK1/2 phosphorylates proAKAP4 on Thr265 in human spermatozoa in vitro and in vivo. Cyclic AMP (cAMP) had no effect on ERK1/2 activity in human spermatozoa, but stimulated the MAPK in mouse pituitary LβT2 gonadotrope cells. cAMP via PKA attenuates PKC-dependent ERK1/2 activation only in the presence of proAKAP4...
November 30, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27900256/arthroscopic-remplissage-for-moderate-size-hill-sachs-lesion
#17
Thomas C Alexander, Clint Beicker, John M Tokish
Humeral bone loss has been shown to be a risk factor for failure after arthroscopic treatment of instability. We present the arthroscopic remplissage technique originally described by Koo and Burkhart et al. with a modification in the percutaneous anchor placement and suture tying that is reproducible and effective. We percutaneously place 2 suture anchors, which require no additional suture passing across the tissue, to create a double pulley technique, filling the defect with posterior capsule and rotator cuff...
October 2016: Arthroscopy Techniques
https://www.readbyqxmd.com/read/27898374/the-effect-of-intracortical-bone-pin-application-on-kinetics-and-tibiocalcaneal-kinematics-of-walking-gait
#18
Christian Maiwald, Anton Arndt, Chris Nester, Richard Jones, Arne Lundberg, Peter Wolf
Bone anchored markers using intracortical bone pins are one of the few available methods for analyzing skeletal motion during human gait in-vivo without errors induced by soft tissue artifacts. However, bone anchored markers require local anesthesia and may alter the motor control and motor output during gait. The purpose of this study was to examine the effect of local anesthesia and the use of bone anchored markers on typical gait analysis variables. Five subjects were analyzed in two different gait analysis sessions...
November 4, 2016: Gait & Posture
https://www.readbyqxmd.com/read/27897428/functionalization-of-polypyrrole-nano-pipes-with-redox-active-polyoxometalates-poms-for-ultrahigh-energy-density-supercapacitors
#19
Deepak Dubal, Belén Ballesteros, Ashwini Mohite, Pedro Gomez-Romero
Hybrid materials are prominent role-models for the fabrication of high performance supercapacitors. Here, we have explored organic-inorganic hybrid materials based on open-end porous 1D polypyrrole nano-pipes (PPy-NPipes) and heteropolyoxometalate (phosphotungstate ([PW12O40]3- (PW12) or phosphomolybdate [PMo12O40]3- (PMo12)) that display excellent areal capacitances. Two different hybrid materials (PMo12@PPy and PW12@PPy) were effectively synthesized and applied for symmetric supercapacitors. The anchoring of the inorganic nanoclusters onto the conducting polymer nanopipes led indeed to electrodes which stood up to our best expectations exhibiting outstanding areal capacitances which are almost 1...
November 29, 2016: ChemSusChem
https://www.readbyqxmd.com/read/27896346/visible-light-driven-mesoporous-ag-embedded-zno-nanocomposites-reactive-oxygen-species-enhanced-photocatalysis-bacterial-inhibition-and-photodynamic-therapy
#20
Jagriti Gupta, Jeotikanta Mohapatra, D Bahadur
We present here the multitasking capabilities of Ag-embedded ZnO nanocomposites (Ag-ZnO NCs), which include the photocatalytic degradation of organic dyes, bacterial inhibition, and cancer therapeutics. Ag-embedded ZnO nanocomposites (Ag-ZnO NCs) of mesoporous spherical morphology (size ∼ 150 ± 50 nm) are successfully synthesized by a facile and single step soft-chemical approach. To understand the effect of Ag loading on multitasking properties, Ag-ZnO NCs are synthesized with different wt% of Ag. It was found that Ag5-ZnO NCs (5 wt% of Ag) showed excellent solar light-induced photocatalytic degradation properties against both cationic as well as anionic dyes...
November 29, 2016: Dalton Transactions: An International Journal of Inorganic Chemistry
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