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https://www.readbyqxmd.com/read/28329438/influence-of-clinical-use-on-physical-structural-surface-properties-and-electrochemical-potential-of-niti-endodontic-instruments
#1
E S J Pereira, C C F Amaral, J A P Gomes, O A Peters, V T L Buono, M G A Bahia
AIM: To investigate the surface morphology and electrochemical potential of superelastic (SE), M-Wire (MW), and shape memory technology (SMT) NiTi instruments before and after single clinical use in vivo. METHODOLOGY: A total of 60 ProTaper Universal F2 (PTU - SE), ProTaper Next X2 (PTN - MW), Typhoon (TYP), Hyflex (HF) and Vortex Blue (VB), the last three SMT, and size 25, .06 taper (n = 6 of each type) files were examined. Scanning electron microscopy (SEM), X-ray energy-dispersive spectroscopy (EDS) and electrochemical potential analysis were employed before and after clinical use...
March 22, 2017: International Endodontic Journal
https://www.readbyqxmd.com/read/28301026/characterization-of-conventional-and-high-translucency-y-tzp-dental-ceramics-submitted-to-air-abrasion
#2
Bhenya Ottoni Tostes, Renato Bastos Guimarães, Jaime Dutra Noronha-Filho, Glauco Dos Santos Botelho, José Guilherme Antunes Guimarães, Eduardo Moreira da Silva
This study evaluated the effect of air-abrasion on t®m phase transformation, roughness, topography and the elemental composition of three Y-TZP (Yttria-stabilized tetragonal zirconia polycrystal) dental ceramics: two conventional (Lava Frame and IPS ZirCad) and one with high-translucency (Lava Plus). Plates obtained from sintered blocks of each ceramic were divided into four groups: AS (as-sintered); 30 (air-abrasion with 30 mm Si-coated Al2O3 particles); 50 (air-abrasion with 50 mm Al2O3 particles) and 150 (air-abrasion with 150 mm Al2O3 particles)...
January 2017: Brazilian Dental Journal
https://www.readbyqxmd.com/read/28242058/clostridium-difficile-infection-among-us-emergency-department-patients-with-diarrhea-and-no-vomiting
#3
Fredrick M Abrahamian, David A Talan, Anusha Krishnadasan, Diane M Citron, Ashley L Paulick, Lydia J Anderson, Ellie J C Goldstein, Gregory J Moran
STUDY OBJECTIVE: The incidence of Clostridium difficile infection has increased and has been observed among persons from the community who have not been exposed to antibiotics or health care settings. Our aims are to determine prevalence of C difficile infection among emergency department (ED) patients with diarrhea and the prevalence among patients without traditional risk factors. METHODS: We conducted a prospective observational study of patients aged 2 years or older with diarrhea (≥3 episodes/24 hours) and no vomiting in 10 US EDs (2010 to 2013)...
February 24, 2017: Annals of Emergency Medicine
https://www.readbyqxmd.com/read/28217351/k1-2x-ni1-x-fe2-aso4-3-x-0-125-un-nouvel-ars%C3%A3-niate-%C3%A3-structure-de-type-%C3%AE-crpo4
#4
Ridha Ben Smail, Mohamed Faouzi Zid
A new arsenate K1+2x Ni1-x Fe2(AsO4)3 (x = 1/8) {potassium nickel diiron(III) tris-[arsenate(V)]} was synthesized using a flux method and its crystal structure was determined from single-crystal X-ray diffraction data. This material was also characterized by qualitative energy dispersive X-ray spectroscopy (EDS) analysis. The crystal structure belongs to the α-CrPO4-structure type, space group Imma. It consists of a three-dimensional-framework built up from FeO6 and Ni0.875□1.25O6-octa-hedra and AsO4-tetra-hedra that are sharing corners and/or edges, generating tunnels running along the [010] and [001] directions in which the potassium cations are located...
February 1, 2017: Acta Crystallographica. Section E, Crystallographic Communications
https://www.readbyqxmd.com/read/28196604/addition-of-bioactive-glass-to-glass-ionomer-cements-effect-on-the-physico-chemical-properties-and-biocompatibility
#5
T De Caluwé, C W J Vercruysse, I Ladik, R Convents, H Declercq, L C Martens, R M H Verbeeck
OBJECTIVES: Glass ionomer cements (GICs) are a subject of research because of their inferior mechanical properties, despite their advantages such as fluoride release and direct bonding to bone and teeth. Recent research aims to improve the bioactivity of the GICs and thereby improve mechanical properties on the long term. In this study, two types of bioactive glasses (BAG) (45S5F and CF9) are combined with GICs to evaluate the physico-chemical properties and biocompatibility of the BAG-GIC combinations...
February 10, 2017: Dental Materials: Official Publication of the Academy of Dental Materials
https://www.readbyqxmd.com/read/28194342/comprehensive-analysis-of-chicken-vessels-as-microvascular-anastomosis-training-model
#6
Bo Young Kang, Byung-Joon Jeon, Kyeong-Tae Lee, Goo-Hyun Mun
BACKGROUND: Nonliving chickens are commonly used as a microvascular anastomosis training model. However, previous studies have investigated only a few types of vessel, and no study has compared the characteristics of the various vessels. The present study evaluated the anatomic characteristics of various chicken vessels as a training model. METHODS: Eight vessels-the brachial artery, basilic vein, radial artery, ulnar artery, ischiatic artery and vein, cranial tibial artery, and common dorsal metatarsal artery-were evaluated in 26 fresh chickens and 30 chicken feet for external diameter (ED) and thicknesses of the tunica adventitia and media...
January 2017: Archives of Plastic Surgery
https://www.readbyqxmd.com/read/28134980/initial-treatment-seeking-from-professional-health-care-providers-for-eating-disorders-a-review-and-synthesis-of-potential-barriers-to-and-facilitators-of-first-contact
#7
REVIEW
Pamela Regan, Fary M Cachelin, Alyssa M Minnick
The objective of this study is to provide a comprehensive review of empirical research exploring barriers to and facilitators of initial treatment seeking ("first contact") from professional health care providers by adults and young adults with eating disorders (EDs). A search of databases PsycINFO and MEDLINE using the terms "treatment" and "eating disorder*" yielded 9,468 peer-reviewed articles published from January 1945 to June 2016. Screening identified 31 articles meeting the following criteria: (1) participants were 16 or older and presented with a self-reported or clinically diagnosed ED; (2) studies focused on (a) initial treatment seeking (b) for an ED (c) from professional health care providers; (3) articles were empirical, and (4) peer reviewed...
January 30, 2017: International Journal of Eating Disorders
https://www.readbyqxmd.com/read/28115524/p3h3-null-and-sc65-null-mice-phenocopy-the-collagen-lysine-under-hydroxylation-and-cross-linking-abnormality-of-ehlers-danlos-syndrome-type-via
#8
David M Hudson, MaryAnn Weis, Jyoti Rai, Kyu Sang Joeng, Milena Dimori, Brendan H Lee, Roy Morello, David R Eyre
Tandem mass spectrometry was applied to tissues from targeted mutant mouse models to explore the collagen substrate specificities of individual members of the prolyl 3-hydroxylase (P3H) gene family. Previous studies revealed that P3h1 preferentially 3-hydroxylates proline at a single site in collagen type I chains, whereas P3h2 is responsible for 3-hydroxylating multiple proline sites in collagen types I, II, IV, and V. In screening for collagen substrate sites for the remaining members of the vertebrate P3H family, P3h3 and Sc65 knock-out mice revealed a common lysine under-hydroxylation effect at helical domain cross-linking sites in skin, bone, tendon, aorta, and cornea...
March 3, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28111065/changes-in-provider-prescribing-patterns-after-implementation-of-an-emergency-department-prescription-opioid-policy
#9
Scott R Osborn, Julianna Yu, Barbara Williams, Maria Vasilyadis, C Craig Blackmore
BACKGROUND: Prescription opioid-associated abuse and overdose is a significant cause of morbidity and mortality in the United States. Opioid prescriptions generated from emergency departments (EDs) nationwide have increased dramatically over the past 20 years, and opioid-related overdose deaths have become an epidemic, according to the Centers for Disease Control and Prevention. OBJECTIVE: Our aim was to determine the effectiveness of implementing a prescription policy for opioids on overall opioid prescribing patterns in a hospital ED...
January 19, 2017: Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28095833/lifetime-and-12-month-prevalence-of-eating-disorders-amongst-women-in-mid-life-a-population-based-study-of-diagnoses-and-risk-factors
#10
Nadia Micali, Maria G Martini, Jennifer J Thomas, Kamryn T Eddy, Radha Kothari, Ellie Russell, Cynthia M Bulik, Janet Treasure
BACKGROUND: Eating disorders (EDs) are common amongst women; however, no research has specifically investigated the lifetime/12-month prevalence of eating disorders amongst women in mid-life (i.e., fourth and fifth decade of life) and the relevant longitudinal risk factors. We aimed to investigate the lifetime and 12-month prevalence of EDs and lifetime health service use and to identify childhood, parenting, and personality risk factors. METHODS: This is a two-phase prevalence study, nested within an existing longitudinal community-based sample of women in mid-life...
January 17, 2017: BMC Medicine
https://www.readbyqxmd.com/read/28091638/highly-ordered-sandwich-type-phthalocyaninato-porphyrinato-europium-double-decker-nanotubes-and-room-temperature-no2-sensitive-properties
#11
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/28078472/using-the-edinburgh-postnatal-depression-scale-for-women-and-men-some-cautionary-thoughts
#12
Stephen Matthey, Francesca Agostini
The objective of the study was to critically consider some of the possible limitations in the Edinburgh Depression Scale (EDS), given that great emphasis is put on the results of this measure within both clinical and research fields. Using findings and discussion points from other studies, as well as from a critical analysis of issues by the authors based upon their clinical and research experience, possible limitations with the scale in nine areas are discussed. Possible limitations include the following: (1) ambiguous items, (2) exclusion of certain types of distress, (3) scoring difficulties, (4) low positive predictive value, (5) frequent use of incorrect cut-off scores, (6) a vast array of validated cut-off scores, (7) validation against a questionable gold-standard, (8) limited anxiety detection and of depressive symptoms in men, and (9) many screen positive women only have transient distress...
January 11, 2017: Archives of Women's Mental Health
https://www.readbyqxmd.com/read/28073822/obstructive-sleep-apnoea-and-quality-of-life-in-ehlers-danlos-syndrome-a-parallel-cohort-study
#13
Thomas Gaisl, Cecilia Giunta, Daniel J Bratton, Kate Sutherland, Christian Schlatzer, Noriane Sievi, Daniel Franzen, Peter A Cistulli, Marianne Rohrbach, Malcolm Kohler
BACKGROUND: Patients with the connective tissue disorder Ehlers-Danlos syndrome (EDS) often suffer from fatigue, excessive daytime sleepiness and impaired quality of life. Obstructive sleep apnoea (OSA) may be an underlying cause for these symptoms but its prevalence in this population is unclear. METHODS: In this prospective parallel-cohort study, we included 100 adult patients with EDS (46% hypermobile-type, 35% classical-type and 19% other), which were one-to-one matched to 100 healthy adult controls according to sex, age, weight and height...
January 10, 2017: Thorax
https://www.readbyqxmd.com/read/28072893/a-pediatric-application-of-the-strac-regional-hospital-trauma-registry-database-pediatric-trauma-deaths-in-south-central-texas-during-2004-2013
#14
Michelle Buehner, Jay Aden, Mathew Borgman, Preston Love, Brandi Wright, Mary Edwards
The purpose of this study was to define the demographics of pediatric traumatic injuries and to understand the predictive value of injury type, prehospital, and emergency department (ED) data regarding the mortality of pediatric trauma patients (<14 years of age) in South Central Texas. We report a retrospective review of pediatric trauma patients presenting to Trauma Service Area P in South Central Texas during 2004-2013. The primary outcome was mortality; secondary outcomes were ventilator days, hospital days, and intensive care unit stay...
January 1, 2017: Texas Medicine
https://www.readbyqxmd.com/read/27992930/insurance-expansion-and-hospital-emergency-department-access-evidence-from-the-affordable-care-act
#15
Craig Garthwaite, Tal Gross, Matthew Notowidigdo, John A Graves
Background: Little is known about whether insurance expansion affects the location and type of emergency department (ED) use. Understanding these changes can inform state-level decisions about the Medicaid expansion under the Patient Protection and Affordable Care Act (ACA). Objective: To investigate the effect of the 2014 ACA Medicaid expansion on the location, insurance status, and type of ED visits. Design: Quasi-experimental observational study from 2012 to 2014...
February 7, 2017: Annals of Internal Medicine
https://www.readbyqxmd.com/read/27977894/synthesis-and-characterization-of-a-novel-scaffold-for-bone-tissue-engineering-based-on-wharton-s-jelly
#16
Cristian Martínez, Carlos Fernández, Miguel Prado, Andres Ozols, Daniel G Olmedo
A composite is a material made of more than one component, and the bond between the components is on a scale larger than the atomic scale. The objective of the present study was to synthesize and perform the structural characterization and biological evaluation of a new biocomposite (BCO) based on a novel combination of an organic and an inorganic phase, for bone tissue engineering applications. The organic phase consisted of Wharton's jelly (WJ), which was obtained from embryonic tissue following a protocol developed by our laboratory...
April 2017: Journal of Biomedical Materials Research. Part A
https://www.readbyqxmd.com/read/27939669/photodegradation-of-methylene-blue-by-photocatalyst-of-d-a-d-type-polymer-functionalized-multi-walled-carbon-nanotubes-composite-under-visible-light-irradiation
#17
Fangfang Liu, Ruxangul Jamal, Yujie Wang, Minchao Wang, Lei Yang, Tursun Abdiryim
A donor-acceptor-donor (D-A-D) type monomer (3,6-bis(2-(3,4-ethylenedioxy- thiophene))pyridazine) (EPE) with pyridazine as intermediate unit (acceptor) and 3,4-ethylenedioxythiophene (EDOT) as sealing unit (donor) was successfully synthesized. The functionalized multi-walled carbon nanotubes (f-MWCNT) was covalently linked with polymer chain via chemical oxidative polymerization of monomer EPE to form poly(EPE)/f-MWCNT composite. The prepared composite was characterized by Fourier transform infrared spectroscopy (FT-IR), Ultraviolet-visible absorption spectra (UV-vis), X-ray diffraction (XRD), Energy-dispersive X-ray spectroscopy (EDS), and Field emission scanning electron microscope (FESEM), respectively...
February 2017: Chemosphere
https://www.readbyqxmd.com/read/27931013/the-influence-of-ehlers-danlos-syndrome-hypermobility-type-on-motherhood-a-phenomenological-hermeneutical-study
#18
Stijn De Baets, Marieke Vanhalst, Marieke Coussens, Lies Rombaut, Fransiska Malfait, Geert Van Hove, Patrick Calders, Guy Vanderstraeten, Dominique van de Velde
BACKGROUND: The consequences of the Ehlers-Danlos Syndrome hypermobility type (EDS-HT) affect many aspects of daily life. "Living with limitations" is a central theme in the life of patients affected by this heritable disorder of connective tissue. The aim of the present study was to explore the lived experiences of women with EDS-HT concerning diagnosis, influence on daily life and becoming and being a mother. METHOD: A phenomenological-hermeneutical study, using in-depth interviews...
January 2017: Research in Developmental Disabilities
https://www.readbyqxmd.com/read/27893695/clinical-assessment-tests-in-evaluating-patients-with-chronic-obstructive-pulmonary-disease-a-cross-sectional-study
#19
Ming-Lung Chuang, I-Feng Lin, Chai-Yuan Lee
Exertional dyspnea scales (EDS) and health-related quality-of-life questionnaires (HRQoLQs) are used to assess chronic obstructive pulmonary disease (COPD). The GOLD guidelines categorize patients according to either 1 of these 2 domains, the lung function and the frequency of acute exacerbations in the preceding year, however with inconsistent results. Combining EDS and HRQoLQs may yield better results; however, the best combination is unclear. Whether the EDS quantifies the exercise capacity or the dyspnea perception is also unclear...
November 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27861836/out-of-network-emergency-department-use-among-managed-medicaid-beneficiaries
#20
Maria C Raven, David Guzman, Alice H Chen, John Kornak, Margot Kushel
OBJECTIVE: Out-of-network emergency department (ED) use, or use that occurs outside the contracted network, may lead to increased care fragmentation and cost. We examined factors associated with out-of-network ED use among Medicaid beneficiaries. DATA SOURCES AND STUDY SETTING: Enrollment, claims, and encounter data for adult Medi-Cal health plan members with 1+ ED visits and complete Medicaid eligibility during the study period from 2013 to 2014. STUDY DESIGN: We analyzed the data to identify factors associated with out-of-network ED use classified by mode of arrival (ambulance vs...
November 11, 2016: Health Services Research
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