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https://www.readbyqxmd.com/read/28317473/the-columbia-bronx-va-amalgamative-clerkship-an-effective-12-week-integrated-longitudinal-clinical-experience
#1
Jillian Diuguid-Gerber, Samuel Porter, Samuel C Quiah, Katherine Nickerson, Deborah Jones, Zeena Audi, Boyd F Richards
BACKGROUND: Many medical schools have adopted the longitudinal integrated clerkship (LIC) model in response to calls for increased continuity in clinical learning environments. However, because of implementation challenges, such programs are not feasible at some institutions or are limited to a small number of students. OBJECTIVE: In January 2014, Columbia University College of Physicians and Surgeons (P&S) recognized the need to explore different LIC formats and began offering four, 12-week amalgamative clerkships (AC)...
2017: Medical Education Online
https://www.readbyqxmd.com/read/28302416/plant-parts-substitution-based-approach-as-a-viable-conservation-strategy-for-medicinal-plants-a-case-study-of-premna-latifolia-roxb
#2
Ashish Kumar Jena, Maninder Karan, Karan Vasisht
BACKGROUND: Rapid population growth and catastrophic harvesting methods of wild medicinal plants especially trees, result in the exploitation of natural sources and its management is the need of the hour. Dashamoolarishta is an amalgam of roots of ten plants of a popular Ayurvedic FDC formulation consisting of the root of Premna latifolia Roxb. as one of its ingredients. Presently, their populations like many other trees are under threat due to extensive use of the roots by the herbal drug industry...
March 14, 2017: Journal of Ayurveda and Integrative Medicine
https://www.readbyqxmd.com/read/28301131/bio-inspired-nano-featured-substrates-suitable-environment-for-bone-regeneration
#3
Hassan Rammal, Marie Dubus, Léa Aubert, Fany Reffuveille, Dominique Laurent Maquin, Christine Terryn, Pierre Schaaf, Halima Alem, Grégory Francius, Fabienne Quilès, Sophie C Gangloff, Fouzia Boulmedais, Halima Kerdjoudj
Bone mimicking coatings provide a complex microenvironment in which material, through its inherent properties (such as nanostructure and composition), affects the commitment of stem cells into bone lineage and the production of bone tissue regulating factors, required for bone healing and regeneration. Herein, a bioactive mineral/biopolymers composite made of calcium phosphate/chitosan and hyaluronic acid (CaP-CHI-HA) was elaborated using a versatile simultaneous spray coating of interacting species. The resulting CaP-CHI-HA coating was mainly constituted of bioactive, carbonated and crystalline hydroxyapatite, with 277 ± 98 nm of roughness, 1 μm of thickness and 2...
March 16, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28296392/anion-redox-mechanism-of-moo-s2-2-2-2-bipyridine-for-electrocatalytic-hydrogen-production
#4
Benjamin R Garrett, Shane M Polen, Maneesha Pimplikar, Christopher M Hadad, Yiying Wu
Redox processes of molybdenum-sulfide (Mo-S) compounds are important in the function of materials for various applications from electrocatalysts for the hydrogen evolution reaction (HER) to cathode materials for batteries. Our group has recently described a series of Mo-S molecular HER catalysts based on a MoO(S2)2L2 structural motif. Herein, reductive pathways of MoO(S2)2bpy (Mo-bpy) (bpy = 2,2'-bipyridine) are presented from both experimental and theoretical studies. We tracked chemical reduction of Mo-bpy with UV-Vis spectroscopy using sodium napthalenide (NaNpth) as the reducing agent and found that Mo-bpy undergoes anionic persulfide reduction to form the tetragonal Mo(VI) complex [MoOS3]2-...
March 15, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28281954/an-assessment-of-direct-restorative-material-use-in-posterior-teeth-by-american-and-canadian-pediatric-dentists-i-material-choice
#5
Rae E Varughese, Paul Andrews, Michael J Sigal, Amir Azarpazhooh
PURPOSE: The purpose of this study was to assess the preferences of pediatric dentists in Canada and the United States about clinical decision-making related to the placement of direct restorative materials. METHODS: A cross-sectional web-based survey was used to collect the preference of all active pediatric members of the Royal College of Dentists of Canada and the American Academy of Pediatric Dentistry on the use of direct restorative materials in posterior teeth in healthy, developmentally delayed (DD), and medically compromised (MC) children...
November 15, 2016: Pediatric Dentistry
https://www.readbyqxmd.com/read/28281590/bulk-fill-resin-based-composite-restorative-materials-a-review
#6
J Chesterman, A Jowett, A Gallacher, P Nixon
Resin-based composite (RBC) materials are increasingly being used for the restoration of posterior teeth. The increasing demand for aesthetic, tooth-coloured restorations coupled with the patient's concerns regarding the use of mercury containing restorations, has driven a surge in the use of RBC materials. With the Minamata Convention in 2013 calling for the phase-out of dental amalgam and dental schools increasingly teaching techniques for RBC restorations in posterior teeth, it is likely that the dental profession's reliance upon RBC for the restoration of posterior teeth will only increase...
March 10, 2017: British Dental Journal
https://www.readbyqxmd.com/read/28280661/reconstruction-of-wassel-type-vi-radial-polydactyly-with-triphalangeal-thumb-using-an-on-top-osteotomy
#7
Kaiying Shen, Zhigang Wang, Yunlan Xu
BACKGROUND: The purpose of this study was to present a novel surgical technique using an on-top osteotomy and to assess the clinical and radiographic outcomes for the triphalangeal Wassel type VI thumb duplication patients. METHODS: The surgical technique involves ablation of the radial thumb at distal one-third of the metacarpal, corresponding metacarpal osteotomy of the ulnar thumb, with amalgamation of 2 metacarpals and reconstruction of the ulnar thumb by a series of soft tissue procedures...
February 2017: Plastic and Reconstructive Surgery. Global Open
https://www.readbyqxmd.com/read/28274514/cerebral-venous-sinus-thrombosis-in-pregnancy-and-puerperium-a-pooled-systematic-review
#8
REVIEW
Ahmed I Kashkoush, Henry Ma, Nitin Agarwal, David Panczykowski, Daniel Tonetti, Gregory M Weiner, William Ares, Cynthia Kenmuir, Ashutosh Jadhav, Tudor Jovin, Brian T Jankowitz, Bradley A Gross
Pregnancy and puerperium are risk factors for cerebral venous sinus thrombosis (CVST); however studies describing diagnosis and management in this population are limited. The objective of this study was to amalgamate published case reports and series regarding diagnosis and management of CVST in pregnancy and puerperium. Searches of PubMed and the Cochrane library were performed using search terms "pregnancy"/"puerperium" and "sinus occlusion"/"sinus thrombosis". Studies were included in our pooled analysis if they included individual patient symptoms, management approach and follow-up condition...
March 5, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28272991/risk-estimation-to-human-health-caused-by-the-mercury-content-of-sushi-and-sashimi-sold-in-japanese-restaurants-in-brazil
#9
Jeanne Clécia Alves, Esther Lima de Paiva, Raquel Fernanda Milani, Eduardo Bearzoti, Marcelo Antonio Morgano, Késia Diego Quintaes
Although fish is a healthy alternative for meat, it can be a vehicle for mercury (Hg), including in its most toxic organic form, methylmercury (MeHg). The objective of the present study was to estimate the risk to human health caused by the consumption of sushi and sashimi as commercialized by Japanese food restaurants in the city of Campinas (SP, Brazil). The total Hg content was determined by atomic absorption spectrometry with thermal decomposition and amalgamation, and the MeHg content calculated considering that 90% of the total Hg is in the organic form...
March 8, 2017: Journal of Environmental Science and Health. Part. B, Pesticides, Food Contaminants, and Agricultural Wastes
https://www.readbyqxmd.com/read/28264483/evolutionary%C3%A2-developments%C3%A2-in%C3%A2-interpreting%C3%A2-the%C3%A2-gluten-induced%C3%A2-mucosal%C3%A2-celiac%C3%A2-lesion-%C3%A2-an%C3%A2-archimedian%C3%A2-heuristic
#10
REVIEW
Michael N Marsh, Calvin J Heal
The evolving history of the small intestinal biopsy and its interpretation-and misinterpretations-are described in this paper. Certain interpretative errors in the technical approaches to histological assessment are highlighted-even though we may never be rid of them. For example, mucosal "flattening" does not reduce individual villi to their cores, as still seems to be widely believed. Neither is the mucosa undergoing an atrophic process-since it can recover structurally. Rather, the intestinal mucosa manifests a vast hypertrophic response resulting in the formation of large plateaus formed from partially reduced villi and their amalgamation with the now increased height and width of the inter-villous ridges: this is associated with considerable increases in crypt volumes...
February 28, 2017: Nutrients
https://www.readbyqxmd.com/read/28262607/biomechanics-of-the-human-intervertebral-disc-a-review-of-testing-techniques-and-results
#11
REVIEW
N Newell, J P Little, A Christou, M A Adams, C J Adam, S D Masouros
Many experimental testing techniques have been adopted in order to provide an understanding of the biomechanics of the human intervertebral disc (IVD). The aim of this review article is to amalgamate results from these studies to provide readers with an overview of the studies conducted and their contribution to our current understanding of the biomechanics and function of the IVD. The overview is presented in a way that should prove useful to experimentalists and computational modellers. Mechanical properties of whole IVDs can be assessed conveniently by testing 'motion segments' comprising two vertebrae and the intervening IVD and ligaments...
January 31, 2017: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/28258271/patterns-of-restorative-failure-among-khat-and-shammah-users-in-jazan-city-kingdom-of-saudi-arabia-a-cross-sectional-survey
#12
Mohammed E Sayed, Razan A Bosly, Huda A Hakami, Maryam H Mugri, Shilpa H Bhandi
INTRODUCTION: The effect of Khat and Shammah habits, with the parafunctional jaw activities that accompany them, on the integrity of the natural dentition, dental restorations, and prostheses has not yet been investigated. This study is the first attempt to identify the patterns of restorative failure among Khat chewers and Shammah users in Jazan City, Kingdom of Saudi Arabia. MATERIALS AND METHODS: A cross-sectional study was conducted in 294 recruits among dental clinics in Jazan City, Kingdom of Saudi Arabia, from October 1, 2015, to April 30, 2016...
March 1, 2017: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/28257544/navigating-clinical-ethics-using-real-case-constellations-to-guide-learners-and-teachers-in-medicine
#13
Katherine Wasson, Mark Kuczewski, Michael P McCarthy, Kayhan Parsi, Emily E Anderson, Paul Hutchison
Case-based learning is a staple of clinical ethics education in medicine. The sources for medical educators generally are lengthy case books or single, often rare, case analyses in the literature. Busy clinicians may not have the time or inclination to sift through case books to find suitable teaching material, and the latter present unusual cases that many physicians may never encounter in their own practice. Relatively few articles present multiple cases involving ethical issues that are likely to appear in everyday practice in an accessible format for teaching...
March 2017: Southern Medical Journal
https://www.readbyqxmd.com/read/28256492/evaluation-of-candida-albicans-biofilm-formation-on-various-dental-restorative-material-surfaces
#14
N Beldüz, A Kamburoğlu, Y Yılmaz, I Tosun, M Beldüz, C Kara
AIMS: Candida adhesion to any oral substrata is the first and essential stage in forming a pathogenic fungal biofilm. In general, yeast cells have remarkable potential to adhere to host surfaces, such as teeth or mucosa, and to artificial, nonbiological surfaces, such as restorative dental materials. This study compared the susceptibility of six dental restorative materials to Candida albicans adhesion. MATERIALS AND METHODS: Cylindrical samples of each material were made according to the manufacturersa instructions...
March 2017: Nigerian Journal of Clinical Practice
https://www.readbyqxmd.com/read/28250037/the-relationship-between-dental-students-assessment-ability-and-preclinical-and-academic-performance-in-operative-dentistry
#15
Cliff Lee, Sheetal R Asher, Supattriya Chutinan, German O Gallucci, Hiroe Ohyama
Self-assessment is a critical skill for health care professionals. Because these professionals must be lifelong, self-directed learners and self-regulating practitioners, the ability to self-assess is essential for them. The aims of this study were to measure how dental students self-assessed and peer-assessed their performance in preclinical operative procedures and to evaluate any relationship between their assessment ability and preclinical skills or academic performance. The study was conducted from 2015 to 2016...
March 2017: Journal of Dental Education
https://www.readbyqxmd.com/read/28242423/effect-of-inos-inhibitor-lnmma-along-with-antibiotics-chloramphenicol-or-ofloxacin-in-murine-peritoneal-macrophages-regulates-s-aureus-infection-as-well-as-inflammation-an-in%C3%A2-vitro-study
#16
Somrita Dey, Biswadev Bishayi
Death due to sepsis by S. aureus is rapidly increasing because of their potent weaponries against macrophage mediated killing. Macrophages serve as intracellular reservoirs of S. aureus. Although significant resources have been invested during the last decade in new treatments for sepsis, only antibiotic therapy has failed to improve outcomes. Moreover the host pathogen interaction resulted in host cell death triggering inflammation. So, successful therapy requires amalgamation of therapies to delineate pathogen along with providing protection to host cell...
February 24, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28236437/biocompatibility-of-biomaterials-lessons-learned-and-considerations-for-the-design-of-novel-materials
#17
REVIEW
Gottfried Schmalz, Kerstin M Galler
OBJECTIVES: Biocompatibility of dental materials has gained increasing interest during recent decades. Meanwhile, legal regulations and standard test procedures are available to evaluate biocompatibility. Herein, these developments will be exemplarily outlined and some considerations for the development of novel materials will be provided. METHODS: Different aspects including test selection, release of substances, barriers, tissue healing, antibacterial substances, nanoparticles and environmental aspects will be covered...
February 21, 2017: Dental Materials: Official Publication of the Academy of Dental Materials
https://www.readbyqxmd.com/read/28230351/fabrication-and-demonstration-of-mercury-disc-well-probes-for-stripping-based-cyclic-voltammetry-scanning-electrochemical-microscopy
#18
Zachary J Barton, Joaquín Rodríguez-López
Scanning electrochemical microscopy (SECM) is a rising technique for the study of energy storage materials. Hg-based probes allow the extension of SECM investigations to ionic processes, but the risk of irreversible Hg amalgam saturation limits their operation to rapid timescales and dilute analyte solutions. Here, we report a novel fabrication protocol for Hg disc-well ultramicroelectrodes (UMEs), which retain access to stripping information but are less susceptible to amalgam saturation than traditional Hg sphere-caps or thin-films...
February 23, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28230350/cyclic-voltammetry-probe-approach-curves-with-alkali-amalgams-at-mercury-sphere-cap-scanning-electrochemical-microscopy-probes
#19
Zachary J Barton, Joaquín Rodríguez-López
We report a method of precisely positioning a Hg-based ultramicroelectrode (UME) for scanning electrochemical microscopy (SECM) investigations of any substrate. Hg-based probes are capable of performing amalgamation reactions with metal cations, which avoid unwanted side reactions and positive feedback mechanisms that can prove problematic for traditional probe positioning methods. However, prolonged collection of ions eventually leads to saturation of the amalgam accompanied by irreversible loss of Hg. In order to obtain negative feedback positioning control without risking damage to the SECM probe, we implement cyclic voltammetry probe approach surfaces (CV-PASs), consisting of CVs performed between incremental motor movements...
February 23, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28225117/gold-nanoparticles-and-the-corresponding-filter-membrane-as-chemosensors-and-adsorbents-for-dual-signal-amplification-detection-and-fast-removal-of-mercury-ii
#20
Gaosong Chen, Jun Hai, Hao Wang, Weisheng Liu, Fengjuan Chen, Baodui Wang
Nowadays, the development of a multifunction system for the simultaneous multiple signal amplification detection and fast removal of Hg(2+) remains a major challenge. Herein, we for the first time used gold nanoparticles (Au NPs) and the corresponding filter membrane as chemosensors and adsorbents for dual signal amplification detection and fast removal of Hg(2+). Such a system was based on the formation of gold amalgam and a gold amalgam-based reaction between rhodamine B (RhB) and NaBH4 with fluorescence and colorimetric sensing functions...
February 22, 2017: Nanoscale
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