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https://www.readbyqxmd.com/read/29770877/polishing-effects-and-wear-performance-of-chairside-cad-cam-materials
#1
Mike Matzinger, Sebastian Hahnel, Verena Preis, Martin Rosentritt
OBJECTIVES: To investigate the surface roughness of CAD/CAM materials immediately after milling and after different chairside and labside polishing procedures. A two-body wear test was performed to compare the different wear characteristics of the materials and the corresponding antagonists. MATERIALS AND METHODS: Specimens (n = 12 per series) from different CAD/CAM materials (three composites: Lava Ultimate, Cerasmart, BRILLIANT Crios; one hybrid ceramic: VITA Enamic; three ceramics: Celtra Duo, VITA Suprinity, IPS Emax...
May 16, 2018: Clinical Oral Investigations
https://www.readbyqxmd.com/read/29751162/recent-advances-in-dna-nanotechnology
#2
REVIEW
Pongphak Chidchob, Hanadi F Sleiman
DNA is a powerful guiding molecule to achieve the precise construction of arbitrary structures and high-resolution organization of functional materials. The combination of sequence programmability, rigidity and highly specific molecular recognition in this molecule has resulted in a wide range of exquisitely designed DNA frameworks. To date, the impressive potential of DNA nanomaterials has been demonstrated from fundamental research to technological advancements in materials science and biomedicine. This review presents a summary of some of the most recent developments in structural DNA nanotechnology regarding new assembly approaches and efforts in translating DNA nanomaterials into practical use...
May 8, 2018: Current Opinion in Chemical Biology
https://www.readbyqxmd.com/read/29749849/a-faculty-professional-development-model-that-improves-student-learning-encourages-active-learning-instructional-practices-and-works-for-faculty-at-multiple-institutions
#3
Karen N Pelletreau, Jennifer K Knight, Paula P Lemons, Jill S McCourt, John E Merrill, Ross H Nehm, Luanna B Prevost, Mark Urban-Lurain, Michelle K Smith
Helping faculty develop high-quality instruction that positively affects student learning can be complicated by time limitations, a lack of resources, and inexperience using student data to make iterative improvements. We describe a community of 16 faculty from five institutions who overcame these challenges and collaboratively designed, taught, iteratively revised, and published an instructional unit about the potential effect of mutations on DNA replication, transcription, and translation. The unit was taught to more than 2000 students in 18 courses, and student performance improved from preassessment to postassessment in every classroom...
June 2018: CBE Life Sciences Education
https://www.readbyqxmd.com/read/29744203/accuracy-of-cervical-auscultation-in-detecting-the-presence-of-material-in-the-airway
#4
Shinji Nozue, Yoshiaki Ihara, Koji Takahashi, Yuka Harada, Yoshiko Takei, Ken Yuasa, Kaoru Yokoyama
Several studies have investigated the accuracy of cervical auscultation (CA). However, both the sensitivities and the specificities of CA in detecting dysphagic conditions varied widely among these studies. These wide variations of the accuracy of CA might be caused by differences of the targeted sounds, such as the expiratory sound (ES) and/or swallowing sound (SS). Forty-six dysphagic patients were served as subjects. Patients who had unoccluded tracheostoma and patients who could not follow the instructions were excluded...
December 2017: Clinical and Experimental Dental Research
https://www.readbyqxmd.com/read/29739843/dental-hygiene-students-clinical-skill-acquisition-activity-theory-and-the-use-of-videos
#5
Sally N Lockwood, Sharon M Compton, Jacqueline L Green, Kari Rasmussen
Purpose: Entry-level students in dental hygiene programs have already demonstrated a level of academic success; however they often struggle with the acquisition of psychomotor skills. Recognizing that traditional course materials were not addressing the needs of entry level dental hygiene students, instructional videos were produced to demonstrate clinical skills. The purpose of this study was to investigate students' perception of instructional videos and their impact on the learning environment in regards to students' experiences of skills acquisition...
April 2018: Journal of Dental Hygiene: JDH
https://www.readbyqxmd.com/read/29730961/assisting-the-integration-of-social-media-in-problem-based-learning-sessions-in-the-faculty-of-medicine-at-king-abdulaziz-university
#6
Zuhier A Awan, Almuatazbellah A Awan, Lana Alshawwa, Ara Tekian, Yoon Soo Park
PURPOSE: Issues related to traditional Problem-Based Learning (PBL) at King Abdulaziz University Faculty of Medicine (KAU-FOM), including lack of student interaction between sessions and outdated instructional materials have led to the examining the use of social media. This study examines factors affecting the implementation of social media into PBL sessions Methods: Mentored social media activities were incorporated between PBL sessions to third year medical students. Ground rules were set, and students were kept on track with learning objectives and authentic references...
May 7, 2018: Medical Teacher
https://www.readbyqxmd.com/read/29728552/the-efficacy-of-low-level-laser-therapy-on-pain-caused-by-placement-of-the-first-orthodontic-archwire-a-clinical-study
#7
Javeriya Nahin, Faisal Arshad, Bharathi V Srinivas, Shashi Kumar, Nagamangala K Lokesh
Aim: This study was conducted to clinically evaluate the effect of low-level laser therapy (LLLT) as a method of reducing pain reported by patients after placement of their first orthodontic archwires. Materials and methods: A sample of 10 patients with an age group of 12 to 26 years with moderate-to-severe anterior crowding was selected. Each patient was assigned to an experimental group (left quadrant with laser therapy) and a control group (right quadrant with no laser therapy). Low-level laser therapy was given immediately after the placement of initial archwire...
April 1, 2018: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/29728537/effect-of-over-the-counter-whitening-products-associated-or-not-with-10-carbamide-peroxide-on-color-change-and-microhardness-in-vitro-study
#8
Ana Lb Jurema, Evaniele S Claudino, Carlos Rg Torres, Eduardo Bresciani, Taciana Mf Caneppele
Aim: The purpose of this in vitro study was to evaluate the color and microhardness of teeth subjected to different over-the-counter (OTC) whitening products in association or not with 10% carbamide peroxide (10% CP). Materials and methods: Enamel-dentin specimens (n = 210) were obtained from bovine incisors and stained. Half of the specimens were then subjected to daily cycles of staining (5 minutes), 10% CP bleaching (8 hours) in association with OTC products, and artificial saliva storage until complete 24 hours, for 2 weeks; the other half was subjected to daily cycles of staining, OTC treatment, and storage in artificial saliva for 12 weeks...
April 1, 2018: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/29726600/activity-oriented-teaching-of-stochastics-in-elementary-school
#9
Ulrike Kipman, Anton Kühberger, Belinda Pletzer
BACKGROUND: There is little research on how to best introduce children to stochastics. In general, demonstration and concrete experience seem to be necessary to establish good understanding of stochastics in children. Pupils seem to be able to develop an intuition on stochastic thinking when they actively solve probabilistic problems and carry out probability experiments based on age-adequate content and materials. AIMS: This study investigates how activity-oriented education can improve stochastics achievement of children...
May 4, 2018: British Journal of Educational Psychology
https://www.readbyqxmd.com/read/29721224/porosity-analysis-of-mta-and-biodentine-cements-for-use-in-endodontics-by-using-micro-computed-tomography
#10
Fabricio Guerrero, Esther Berástegui
Background: The purpose of this study is to compare the porosity of two repair cements, White ProRoot® MTA and Biodentine®. These samples were analyzed by using micro-computed microtomography. Material and Methods: Sixteen samples were used in the study that were divided according to the composition of the materials used. White ProRoot® MTA (n = 8) and Biodentine® (n = 8) were the samples prepared according to the manufacturer's instructions. They were placed in silicone molds of 5 ± 0...
March 2018: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/29720300/chronic-obstructive-pulmonary-disease-and-heart-failure-self-management-kits-for-outpatient-transitions-of-care
#11
Paul Boylan, Tina Joseph, Genevieve Hale, Cynthia Moreau, Matthew Seamon, Renee Jones
OBJECTIVE: To develop heart failure (HF) and chronic obstructive pulmonary disease (COPD) self-management kits in an accountable care organization (ACO) to facilitate patients' self-care and prevent hospital readmissions. SETTING: Pharmacists practice in an outpatient-based ACO. They participate in interprofessional office visits with providers and independently manage maintenance pharmacotherapies. PRACTICE DESCRIPTION: Pharmacists collaborate with an interprofessional team within the ACO including physicians, nurses, case managers, and paramedics...
March 1, 2018: Consultant Pharmacist: the Journal of the American Society of Consultant Pharmacists
https://www.readbyqxmd.com/read/29720161/evaluation-of-a-training-program-of-hypertension-for-accredited-social-health-activists-asha-in-rural-india
#12
Marwa Abdel-All, Amanda Gay Thrift, Michaela Riddell, Kavumpurathu Raman Thankappan Thankappan, Gomathyamma Krishnakurup Mini, Clara K Chow, Pallab Kumar Maulik, Ajay Mahal, Rama Guggilla, Kartik Kalyanram, Kamakshi Kartik, Oduru Suresh, Roger George Evans, Brian Oldenburg, Nihal Thomas, Rohina Joshi
BACKGROUND: Hypertension is a major risk factor for cardiovascular disease, a leading cause of premature death and disability in India. Since access to health services is poor in rural India and Accredited Social Health Activists (ASHAs) are available throughout India for maternal and child health, a potential solution for improving hypertension control is by utilising this available workforce. We aimed to develop and implement a training package for ASHAs to identify and control hypertension in the community, and evaluate the effectiveness of the training program using the Kirkpatrick Evaluation Model...
May 2, 2018: BMC Health Services Research
https://www.readbyqxmd.com/read/29719312/contrast-agents-and-observing-patient-safety-programs-in-radiology-departments-in-kermanshah-province-hospitals-in-west-of-iran
#13
Fatemhe Amiri, Mohammad Rasoul Tohidnia, Somayeh Haydarizadi, Rasool Azmoonfar
Introduction: Contrast agents play an important role in increasing the efficiency of diagnostic imaging techniques in the evaluation of vascular lesions, infections and tumors. Annually more than 70 million radiology tests performed using contrast agent materials in the world. Side effects of contrast agent can belief-threaten, so that observing safety guideline prescribed a key role in the patient's health. Aim: The aim of this study was evaluation of compliance with the instructions in the use of contrast agent materials in Kermanshah province Hospitals, West in Iran...
2018: Acta Informatica Medica: AIM
https://www.readbyqxmd.com/read/29717821/about-chemical-strategies-to-fabricate-cell-instructive-biointerfaces-with-static-and-dynamic-complexity
#14
REVIEW
Gülistan Koçer, Pascal Jonkheijm
Properly functioning cell-instructive biointerfaces are critical for healthy integration of biomedical devices in the body and serve as decisive tools for the advancement of our understanding of fundamental cell biological phenomena. Studies are reviewed that use covalent chemistries to fabricate cell-instructive biointerfaces. These types of biointerfaces typically result in a static presentation of predefined cell-instructive cues. Chemically defined, but dynamic cell-instructive biointerfaces introduce spatiotemporal control over cell-instructive cues and present another type of biointerface, which promises a more biomimetic way to guide cell behavior...
May 2, 2018: Advanced Healthcare Materials
https://www.readbyqxmd.com/read/29713118/being-well-looking-ill-childbirth-and-the-return-to-health-in-seventeenth-century-england
#15
Leah Astbury
For a month after childbirth, the authors of medical and religious prescriptive literature instructed new mothers to keep to their beds. During this time they were expected to bleed away the bodily remnants of pregnancy. At the end of this month writers considered women 'well'. Bleeding, in this definition, was commensurate with recovery. This article shows that although in prescriptive material, maternal health was measured according to this process of purging, for early modern middling and upper sort women and their families, the bodily effects of childbearing continued to impede their ability to return to normal household tasks and behaviours long after the ritual month of 'lying-in' had ended...
August 2017: Social History of Medicine: the Journal of the Society for the Social History of Medicine
https://www.readbyqxmd.com/read/29710008/-approach-to-evidence-based-medicine-exercises-using-flipped-teaching-introductory-education-for-clinical-practice-for-4th-year-pharmacy-students
#16
Mitsuko Onda, Nobumasa Takagaki
 Osaka University of Pharmaceutical Sciences has included an evidence-based medicine (EBM) exercise in the introductory education for clinical practice for 4th-year pharmacy students since 2015. The purpose of this exercise is to learn the process of practice and basic concepts of EBM, especially to cultivate the practical ability to solve patients' problems and answer their questions. Additionally, in 2016, we have attempted flipped teaching. The students are instructed to review the basic knowledge necessary for active learning in this exercise by watching video teaching materials and to bring reports summarizing the contents on the flipped teaching days...
2018: Yakugaku Zasshi: Journal of the Pharmaceutical Society of Japan
https://www.readbyqxmd.com/read/29698914/error-quantification-of-osteometric-data-in-forensic-anthropology
#17
Natalie R Langley, Lee Meadows Jantz, Shauna McNulty, Heli Maijanen, Stephen D Ousley, Richard L Jantz
This study evaluates the reliability of osteometric data commonly used in forensic case analyses, with specific reference to the measurements in Data Collection Procedures 2.0 (DCP 2.0). Four observers took a set of 99 measurements four times on a sample of 50 skeletons (each measurement was taken 200 times by each observer). Two-way mixed ANOVAs and repeated measures ANOVAs with pairwise comparisons were used to examine interobserver (between-subjects) and intraobserver (within-subjects) variability. Relative technical error of measurement (TEM) was calculated for measurements with significant ANOVA results to examine the error among a single observer repeating a measurement multiple times (e...
April 10, 2018: Forensic Science International
https://www.readbyqxmd.com/read/29696580/hypermnesia-and-the-role-of-delay-between-study-and-test
#18
Lisa A Wallner, Karl-Heinz T Bäuml
Hypermnesia is increased recall across repeated tests in the absence of any further study opportunities. Although over the years many factors have been identified that influence hypermnesia, to date not much is known about the role of delay between study and test for the effect. This study addressed the issue in four experiments. Employing both words and pictures as study material, we compared hypermnesia after shorter delay (3 min or 11.5 min) and longer delay (24 h or 1 week) between study and test. Recall occurred over three successive tests, using both free recall (Experiments 1, 2, and 4) and forced recall testing (Experiment 3)...
April 25, 2018: Memory & Cognition
https://www.readbyqxmd.com/read/29695956/interfacing-graphene-based-materials-with-neural-cells
#19
REVIEW
Mattia Bramini, Giulio Alberini, Elisabetta Colombo, Martina Chiacchiaretta, Mattia L DiFrancesco, José F Maya-Vetencourt, Luca Maragliano, Fabio Benfenati, Fabrizia Cesca
The scientific community has witnessed an exponential increase in the applications of graphene and graphene-based materials in a wide range of fields, from engineering to electronics to biotechnologies and biomedical applications. For what concerns neuroscience, the interest raised by these materials is two-fold. On one side, nanosheets made of graphene or graphene derivatives (graphene oxide, or its reduced form) can be used as carriers for drug delivery. Here, an important aspect is to evaluate their toxicity, which strongly depends on flake composition, chemical functionalization and dimensions...
2018: Frontiers in Systems Neuroscience
https://www.readbyqxmd.com/read/29692561/effect-of-different-polishing-methods-on-surface-roughness-of-provisional-prosthetic-materials
#20
Ívian Verena Maia Tupinambá, Priscila Couy Corrêa Giampá, Isadora Almeida Rios Rocha, Emilena Maria Castor Xisto Lima
Purpose: To evaluate the surface roughness of bis-acrylic and acrylic resins submitted to different methods of polishing. Materials and Methods: Fifty samples of each provisional restorative material (Structur 2, Protemp 4, Duralay, and Dencrilay) were fabricated (10 mm × 2 mm) and divided into five groups ( n = 10): (1) positive control group - polyester strip; (2) negative control - unpolished; (3) abrasive tips (Exa-Technique-Edenta); (4) goat hair brush and diamond polishing paste; and (5) silicone tips (Enhance)...
April 2018: Journal of Indian Prosthodontic Society
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