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https://www.readbyqxmd.com/read/29334753/physicians-perceptions-of-hope-and-how-hope-informs-interactions-with-patients-a-qualitative-exploratory-study
#1
Airin Wolf, Catherine F Garlid, Kristiina Hyrkas
OBJECTIVES: Today some studies of physicians' perceptions of hope are available, but not studies of how hope informs patient care. The objectives of this qualitative study were to describe the ways physicians conceptualize hope and how these may inform interactions with their patients. METHODS: Ten physicians working in a large tertiary care teaching hospital were interviewed. They represented palliative care, oncology, and 7 other specialties. Minimal amount of background information was collected...
January 1, 2018: American Journal of Hospice & Palliative Care
https://www.readbyqxmd.com/read/29331933/combined-effects-of-ag-and-uio-66-for-removal-of-elemental-mercury-from-flue-gas
#2
Songjian Zhao, Dongyao Chen, Haomiao Xu, Jian Mei, Zan Qu, Ping Liu, Yong Cui, Naiqiang Yan
The zirconium metal-organic framework material UiO-66 was doped with Ag nanoparticles and investigated for the removal of elemental mercury (Hg0) in flue gas. Physical and chemical characterization of the adsorbents showed that adding Ag did not change the crystal structure and morphology of the UiO-66. Ag doping can improve the redox activity of UiO-66, and the adsorbent exhibited high thermal stability and surface area. Hg0 removal experiments indicated that UiO-66 exhibited the higher performance compared with P25 and activated carbon, and the addition of Ag exhibited a significant synergistic effect with the UiO-66, which had highest Hg0 adsorption capacity (3...
January 9, 2018: Chemosphere
https://www.readbyqxmd.com/read/29326443/aesthetic-possibilities-in-removable-prosthodontics-part-1-the-aesthetic-spectrum-from-perfect-to-personal
#3
J N Besford, A F Sutton
Patients requiring dentures are getting older and as a result can be difficult to treat owing to various co-morbidities. This series of papers presents an overview of the processes involved in making removable dentures which the patient considers to be functionally and aesthetically successful. We hope not only to provide technical suggestions but also to address the issue of the clinician's, technician's and dental nurse's relationships with the dentally depleted patient. It is increasingly clear from defence organisation reports that this has a decisive effect on the success of this fundamentally difficult enterprise ('The only branch of dentistry in which you are trying to attach something to nothing' [Hubert Aïche])...
January 12, 2018: British Dental Journal
https://www.readbyqxmd.com/read/29323205/unsupervised-learning-and-pattern-recognition-of-biological-data-structures-with-density-functional-theory-and-machine-learning
#4
Chien-Chang Chen, Hung-Hui Juan, Meng-Yuan Tsai, Henry Horng-Shing Lu
By introducing the methods of machine learning into the density functional theory, we made a detour for the construction of the most probable density function, which can be estimated by learning relevant features from the system of interest. Using the properties of universal functional, the vital core of density functional theory, the most probable cluster numbers and the corresponding cluster boundaries in a studying system can be simultaneously and automatically determined and the plausibility is erected on the Hohenberg-Kohn theorems...
January 11, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29319055/composition-production-rate-and-management-of-dental-solid-waste-in-2017-in-birjand-iran
#5
Habibe Momeni, Seyyedeh Fatemeh Tabatabaei Fard, Aliye Arefinejad, Afsane Afzali, Farkhonde Talebi, Elham Rahmanpour Salmani
BACKGROUND: The presence of toxic and pathogenic agents in the dental waste products has made it to be classified as "hazardous waste." OBJECTIVE: To assess dental waste production rate and composition and approaches used to manage these waste products in 2017 in Birjand, Iran. METHODS: 48 dental clinics were evaluated in two months of 2017. Sampling was performed from each clinic 3 times a week. Samples were manually divided into 5 categories of chemical-pharmaceutical, infectious, semi-household, sharp and cutting materials, and toxic waste products, and weighed...
January 2018: International Journal of Occupational and Environmental Medicine
https://www.readbyqxmd.com/read/29316410/environmental-warming-and-feminization-of-one-of-the-largest-sea-turtle-populations-in-the-world
#6
Michael P Jensen, Camryn D Allen, Tomoharu Eguchi, Ian P Bell, Erin L LaCasella, William A Hilton, Christine A M Hof, Peter H Dutton
Climate change affects species and ecosystems around the globe [1]. The impacts of rising temperature are particularly pertinent in species with temperature-dependent sex determination (TSD), where the sex of an individual is determined by incubation temperature during embryonic development [2]. In sea turtles, the proportion of female hatchlings increases with the incubation temperature. With average global temperature predicted to increase 2.6°C by 2100 [3], many sea turtle populations are in danger of high egg mortality and female-only offspring production...
January 8, 2018: Current Biology: CB
https://www.readbyqxmd.com/read/29314284/the-mercury-problem-in-artisanal-and-small-scale-gold-mining
#7
Louisa J Esdaile, Justin M Chalker
Mercury-dependent artisanal and small-scale gold mining (ASGM) is the largest source of mercury pollution on Earth. In this practice, elemental mercury is used to extract gold from ore as an amalgam. The amalgam is typically isolated by hand and then heated-often with a torch or over a stove-to distill the mercury and isolate the gold. Mercury emissions from tailings and vaporised mercury exceed 1000 tonnes each year from ASGM. The health effects on the miners are dire, with inhaled mercury leading to neurological damage and other health issues...
January 3, 2018: Chemistry: a European Journal
https://www.readbyqxmd.com/read/29302906/toxic-heavy-metals-in-human-blood-in-relation-to-certain-food-and-environmental-samples-in-kerala-south-india
#8
Anitha Jose, Joseph George Ray
Toxic heavy metals such as arsenic (As), lead (Pb), and mercury (Hg) are systemic toxicants that are hazardous to human health. However, as these elements are increasing in the environment due to fast urbanization, industrialization, and chemicalized agricultural activities, accumulation of the same in human body anywhere in the world is quite interesting to global assessment of environment quality. In this connection, random examination of blood samples of human population in Kerala, South India, was carried out to assess the threat of heavy metal contamination to humans in this part of the globe, especially in relation to the amount of such metals in food and other environmental samples...
January 4, 2018: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29297395/between-lake-baikal-and-the-baltic-sea-genomic-history-of-the-gateway-to-europe
#9
Petr Triska, Nikolay Chekanov, Vadim Stepanov, Elza K Khusnutdinova, Ganesh Prasad Arun Kumar, Vita Akhmetova, Konstantin Babalyan, Eugenia Boulygina, Vladimir Kharkov, Marina Gubina, Irina Khidiyatova, Irina Khitrinskaya, Ekaterina E Khrameeva, Rita Khusainova, Natalia Konovalova, Sergey Litvinov, Andrey Marusin, Alexandr M Mazur, Valery Puzyrev, Dinara Ivanoshchuk, Maria Spiridonova, Anton Teslyuk, Svetlana Tsygankova, Martin Triska, Natalya Trofimova, Edward Vajda, Oleg Balanovsky, Ancha Baranova, Konstantin Skryabin, Tatiana V Tatarinova, Egor Prokhortchouk
BACKGROUND: The history of human populations occupying the plains and mountain ridges separating Europe from Asia has been eventful, as these natural obstacles were crossed westward by multiple waves of Turkic and Uralic-speaking migrants as well as eastward by Europeans. Unfortunately, the material records of history of this region are not dense enough to reconstruct details of population history. These considerations stimulate growing interest to obtain a genetic picture of the demographic history of migrations and admixture in Northern Eurasia...
December 28, 2017: BMC Genetics
https://www.readbyqxmd.com/read/29289729/replacing-amalgam-with-a-high-viscosity-glass-ionomer-in-restoring-primary-teeth-a-cost-effectiveness-study-in-brasilia-brazil
#10
A Goldman, J E Frencken, R G De Amorim, S C Leal
OBJECTIVES: When planning primary oral health care services the cost implications of adopting new intervention practices are important, especially in resource-strapped countries. Although on a trajectory to be phased-out, amalgam remains the standard of care in many countries. METHODS: Adopting a government perspective, this study compared the costs of performing amalgam and ART/high-viscosity glass-ionomer cement (HVGIC) restorations and the consequences of failed restorations over 3 years in suburban Brasilia, Brazil...
December 28, 2017: Journal of Dentistry
https://www.readbyqxmd.com/read/29284940/recovery-of-mercury-from-dental-amalgam-scrap-indian-perspective
#11
Kadandale Sadasiva, Sreeram Rayar, Unnikrishnan Manu, Kumarappan Senthilkumar, Srinivasan Daya, Nagarajan Anushaa
Aim: The aim is to recycle mercury from dental amalgam scrap using the vacuum distillation method. Materials and Methods: A total of 150 g of dental amalgam scrap was taken in a round bottom flask and was subjected to vacuum distillation at 398°C. The vapor of mercury was collected in another round bottom flask. Observation: The procedure is carried out for mercury recovery using vacuum distillation apparatus, and mercury vapor are collected in a round bottom flask, and the silver is recovered using sucrose as reducing agent...
November 2017: Journal of Pharmacy & Bioallied Sciences
https://www.readbyqxmd.com/read/29279688/dental-amalgam-fillings-and-the-use-of-technological-devices-as-an-environmental-factor-updating-the-cumulative-mercury-exposure-based-hypothesis-of-autism
#12
Isadora Argou-Cardozo, José Antonio Cano Martín, Fares Zeidán-Chuliá
No abstract text is available yet for this article.
October 2017: European Journal of Dentistry
https://www.readbyqxmd.com/read/29279619/comparative-evaluation-of-the-bond-strength-of-posterior-composite-with-different-cavity-configurations-and-different-liners-using-a-two-step-etch-and-rinse-adhesive-system-in-vitro-study
#13
Tanaya Kumar, Anita Sanap, Karan Bhargava, Shalini Aggarwal, Gurupriya Kaur, Kunal Kunjir
Introduction: Conventional Class II cavity preparations used for restoring small lesions with amalgam may be inappropriate for composite resin restorations due to the extensive cavity form, large occlusal contact area, and thin or missing margins of the tooth. Cavity preparation in the proximal areas as per the precepts of Clark is a conservative method of caries excavation and tooth preparation. Materials and Methods: Conventional Class II and Clark's Class II cavities were prepared on the mesial surfaces of 60 molars...
May 2017: Journal of Conservative Dentistry: JCD
https://www.readbyqxmd.com/read/29247657/spironolactone-voltammetric-determination-on-renewable-amalgam-film-electrode
#14
Joanna Smajdor, Robert Piech, Beata Paczosa-Bator
In this study a new high sensitive method of spironolactone (SP) determination is proposed using voltammetric technique. As the working electrode amalgam film silver based electrode (Hg(Ag)FE) was applied, that resulted in obtaining low limit of spironolactone detection, ex. for the preconcentration time 45 s obtained detection limit was 4.7·10-9 mol L-1 (1.96·10-6 g L-1). The linear response of spironolactone signal on mercury film electrode was obtained in the range of concentration from 15·10-9 to 3.0·10-6 mol L-1 and the obtained repeatability measured as RSD was very good, with the value of 2...
December 13, 2017: Steroids
https://www.readbyqxmd.com/read/29242128/performance-of-5-different-displays-in-the-detection-of-artificial-incipient-and-recurrent-caries-like-lesions
#15
Shawn Chancy Countryman, Saulo Leonardo Sousa Melo, Manuella Dias Furtado Belem, Francisco Haiter-Neto, Marcos A Vargas, Veeratrishul Allareddy
OBJECTIVES: The aim of this study was to assess whether auto-calibrating medical-grade monitors perform better than off-the-shelf monitors and tablet computers in detecting artificial incipient and recurrent caries-like lesions. STUDY DESIGN: Sixty extracted teeth (30 premolars and 30 molars) were selected. All molars received class II amalgam and composite restorations. A 7-mm2 area on the crowns of half of the teeth was demineralized. Phantoms consisting of 4 teeth were created...
November 15, 2017: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
https://www.readbyqxmd.com/read/29240681/mercury-hair-concentration-among-primary-school-children-in-malaysia
#16
Nurul Izzah Abdul Samad, Zaleha Md Isa, Rozita Hod
The main concern regarding mercury exposure is the adverse health effect on the developing nervous system. The objective of this cross-sectional study was to determine hair mercury levels and their association with socio-demographic characteristics, complaints about mercury poisoning symptoms and the fish consumption pattern among children in Malaysia. A cross-sectional study was conducted among 215 school children aged 11 years old. Hair was collected from the children and the total mercury was analyzed using oxygen combustion-gold amalgamation atomic absorption spectrophotometry...
December 14, 2017: Children
https://www.readbyqxmd.com/read/29227651/total-syntheses-of-scaparvins-b-c-and-d-enabled-by-a-key-c-h-functionalization
#17
Qinda Ye, Pei Qu, Scott A Snyder
The clerodane diterpene family possesses an impressive range of bioactivities and high synthetic challenge due to their unique amalgamation of rings, stereocenters, and oxygenation. Herein, we disclose the first total syntheses of three members, scaparvins B, C, and D, through a route fueled by several chemoselective and carefully orchestrated steps. One such operation is a tailored late-stage C-H functionalization converting a carboxylic acid into a lactone through the oxidation of a tertiary C-H bond under conditions that minimize epoxidation of an alkene...
December 11, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/29225924/ct-dental-artifact-comparison-of-an-iterative-metal-artifact-reduction-technique-with-weighted-filtered-back-projection
#18
Felix E Diehn, Gregory J Michalak, David R DeLone, Amy L Kotsenas, E Paul Lindell, Norbert G Campeau, Ahmed F Halaweish, Cynthia H McCollough, Joel G Fletcher
Background: Dental hardware produces streak artifacts on computed tomography (CT) images reconstructed with the standard weighted filtered back projection (wFBP) method. Purpose: To perform a preliminary evaluation of an iterative metal artifact reduction (IMAR) technique to assess its ability to improve anatomic visualization over wFBP in patients with dental amalgam or other hardware. Material and Methods: CT images from patients with dental hardware were reconstructed using wFBP and IMAR software and soft-tissue or bone window/level settings...
November 2017: Acta Radiologica Open
https://www.readbyqxmd.com/read/29214499/microbial-degradation-of-forensic-samples-of-biological-origin-potential-threat-to-human-dna-typing
#19
REVIEW
Hirak Ranjan Dash, Surajit Das
Forensic biology is a sub-discipline of biological science with an amalgam of other branches of science used in the criminal justice system. Any nucleated cell/tissue harbouring DNA, either live or dead, can be used as forensic exhibits, a source of investigation through DNA typing. These biological materials of human origin are rich source of proteins, carbohydrates, lipids, trace elements as well as water and, thus, provide a virtuous milieu for the growth of microbes. The obstinate microbial growth augments the degradation process and is amplified with the passage of time and improper storage of the biological materials...
December 6, 2017: Molecular Biotechnology
https://www.readbyqxmd.com/read/29214103/in-vivo-intraoral-reflectance-confocal-microscopy-of-an-amalgam-tattoo
#20
Oriol Yélamos, Miguel Cordova, Gary Peterson, Melissa P Pulitzer, Bhuvanesh Singh, Milind Rajadhyaksha, Jennifer L DeFazio
The majority of oral pigmentations are benign lesions such as nevi, melanotic macules, melanoacanthomas or amalgam tattoos. Conversely, mucosal melanomas are rare but often lethal; therefore, excluding oral melanomas in this setting is crucial. Reflectance confocal microscopy is a non-invasive, in vivo imaging system with cellular resolution that has been used to distinguish benign from malignant pigmented lesions in the skin, and more recently in the mucosa. However, lesions located posteriorly in the oral cavity are difficult to assess visually and difficult to biopsy due to their location...
October 2017: Dermatology Practical & Conceptual
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