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https://www.readbyqxmd.com/read/28432999/effect-of-intra-oral-aging-on-t%C3%A2-m-phase-transformation-microstructure-and-mechanical-properties-of-y-tzp-dental-ceramics
#1
Luciana Meireles Miragaya, Renato Bastos Guimarães, Rodrigo Othávio de Assunção E Souza, Glauco Dos Santos Botelho, José Guilherme Antunes Guimarães, Eduardo Moreira da Silva
The aim of the present study was to evaluate the influence of intra-oral aging on the tetragonal-to-monoclinic (t→m) phase transformation of two Y-TZP dental ceramics - Lava Frame (Frame) and Lava Plus (Plus) - and determine the impact of this response on their microstructures and mechanical properties: flexural strength, Young's modulus, microhardness and fracture toughness. Standardized ceramic specimens were analyzed by X-ray diffraction (XRD), scanning electron microscopy (SEM) and atomic force microscopy (AFM)...
April 13, 2017: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/28432560/executive-function-and-life-space-mobility-in-old-age
#2
Taina Poranen-Clark, Mikaela B von Bonsdorff, Merja Rantakokko, Erja Portegijs, Johanna Eronen, Markku Kauppinen, Johan G Eriksson, Taina Rantanen, Anne Viljanen
BACKGROUND: Life-space assessment incorporates all movements in terms of the distance from home, the frequency of movement and the need of assistance for movement. Executive function (EF) is an important higher order cognitive ability that controls and guides people's goal-directed actions. We examined the cross-sectional and longitudinal associations between EF and life-space mobility, and investigated if perceived walking difficulties, lower extremity performance, and transportation difficulties explain the association...
April 21, 2017: Aging Clinical and Experimental Research
https://www.readbyqxmd.com/read/28432559/the-marriage-wealth-premium-revisited-gender-disparities-and-within-individual-changes-in-personal-wealth-in-germany
#3
Philipp M Lersch
This study examines the association between marriage and economic wealth of women and men. Going beyond previous research that focused on household wealth, I examine personal wealth, which allows identifying gender disparities in the association between marriage and wealth. Using unique data from the German Socio-Economic Panel Study (2002, 2007, and 2012), I apply random-effects and fixed-effects regression models to test my expectations. I find that both women and men experience substantial marriage wealth premiums not only in household wealth but also in personal wealth...
April 21, 2017: Demography
https://www.readbyqxmd.com/read/28432532/a-portable-battery-powered-microfluidic-impedance-cytometer-with-smartphone-readout-towards-personal-health-monitoring
#4
Niloy Talukder, Abbas Furniturewalla, Tuan Le, Matthew Chan, Shreyas Hirday, Xinnan Cao, Pengfei Xie, Zhongtian Lin, Azam Gholizadeh, Steve Orbine, Mehdi Javanmard
We present a portable system for personalized blood cell counting consisting of a microfluidic impedance cytometer and portable analog readout electronics, feeding into an analog-to-digital converter (ADC), and being transmitted via Bluetooth to a user-accessible mobile application. We fabricated a microfluidic impedance cytometer with a novel portable analog readout. The novel design of the analog readout, which consists of a lock-in-amplifier followed by a high-pass filter stage for subtraction of drift and DC offset, and a post-subtraction high gain stage, enables detection of particles and cells as small as 1 μm in diameter, despite using a low-end 8-bit ADC...
June 2017: Biomedical Microdevices
https://www.readbyqxmd.com/read/28432128/do-the-microbiota-influence-vaccines-and-protective-immunity-to-pathogens-issues-of-sovereignty-federalism-and-points-testing-in-the-prokaryotic-and-eukaryotic-spaces-of-the-host-microbial-superorganism
#5
Andrew J Macpherson
In contrast to live attenuated vaccines, which are designed to induce immunity through a time-limited bloom in systemic tissues, the microbiota is a persistent feature of body surfaces, especially the intestine. The immune responses to the microbiota are idiosyncratic depending on the niche intimacy of different taxa and generally adapt the host to avoid overgrowth and maintain mutualism rather than to eliminate the organisms of that taxon. Both the microbiota and the host have so much molecular cross talk controlling each other, that the prokaryotic and the eukaryotic spaces of the host-microbial superorganism are federal rather than sovereign...
April 21, 2017: Cold Spring Harbor Perspectives in Biology
https://www.readbyqxmd.com/read/28432089/preparing-future-doctors-for-palliative-care-views-of-course-organisers
#6
Steven Walker, Jane Gibbins, Paul Paes, Stephen Barclay, Astrid Adams, Madawa Chandratilake, Faye Gishen, Philip Lodge, Bee Wee
BACKGROUND: Effective training at medical school is essential to prepare new doctors to safely manage patients with palliative care (PC) and end of life care (EOLC) needs. The contribution of undergraduate PC course organisers is central but their collective views regarding role are unknown. OBJECTIVE: To survey attitudes of PC course organisers regarding their course, organisation, the adequacy of training provided and level of personal satisfaction. METHODS: An anonymised, multifactorial, web-based questionnaire was devised, tested, modified and then sent to lead PC course organisers at all UK medical schools...
April 21, 2017: BMJ Supportive & Palliative Care
https://www.readbyqxmd.com/read/28431632/combined-evaluation-of-personality-risk-and-coping-in-ms-patients-a-step-towards-individualized-treatment-choice-the-pericoms-study-i
#7
G Bsteh, E Monz, L Zamarian, S Hagspiel, H Hegen, M Auer, S Wurth, F Di Pauli, F Deisenhammer, T Berger
BACKGROUND: Multiple sclerosis (MS) is a chronic inflammatory neurological disease requiring disease-modifying treatment (DMT). To provide patients with the optimal individual therapeutic option, treatment recommendations should be based not only on individual disease course and DMT specific benefit-risk estimates, but also on patient's individual characteristics such as personality, risk attitude and coping strategies. However, these characteristics are difficult to objectify in clinical routine practice without the support of appropriate evaluation instruments...
May 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28431618/muscle-strength-and-power-in-persons-with-multiple-sclerosis-a-systematic-review-and-meta-analysis
#8
REVIEW
Mlk Jørgensen, U Dalgas, I Wens, L G Hvid
BACKGROUND: Multiple sclerosis (MS) is a chronic disease in the central nervous system which causes a number of physical symptoms including impairments of muscle mechanical function (muscle strength, muscle power and explosive muscle strength (~rate of force development, RFD)). However, a full overview of the existing knowledge regarding muscle mechanical function in persons with MS (PwMS) is still pending. OBJECTIVES: To systematically review 1) the psychometric properties of isokinetic dynamometry testing in PwMS, and 2) studies comparing muscle mechanical function in PwMS to matched healthy controls (HC)...
May 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28431461/impact-of-superparamagnetic-iron-oxide-nanoparticles-on-vocal-fold-fibroblasts-cell-behavior-and-cellular-iron-kinetics
#9
Marina Pöttler, Anna Fliedner, Eveline Schreiber, Christina Janko, Ralf Philipp Friedrich, Christopher Bohr, Michael Döllinger, Christoph Alexiou, Stephan Dürr
PURPOSE: The voice is the most important instrument of communication. Tissue defects in the vocal fold (VF) area lead to serious reduction in quality of life, but thus far, no satisfactory VF implant exists. Therefore, we aim to establish a functional VF implant in a rabbit model by magnetic tissue engineering (MTE) using superparamagnetic iron oxide nanoparticles (SPION). Hence, iron quantification over time as well as cell behavior studies upon SPION treatment are of great importance...
December 2017: Nanoscale Research Letters
https://www.readbyqxmd.com/read/28431457/precision-medicine-and-pharmacogenetics-what-does-oncology-have-that-addiction-medicine-does-not
#10
Henry R Kranzler, Rachel V Smith, Robert Schnoll, Afaf Moustafa, Emma Greenstreet-Akman
BACKGROUND AND AIMS: Precision, personalized or stratified medicine, which promises to deliver the right treatment to the right patient, is a topic of international interest in both the lay press and the scientific literature. A key aspect of precision medicine is the identification of biomarkers that predict the response to medications (i.e. pharmacogenetics). We examined why, despite the great strides that have been made in biomarker identification in many areas of medicine, only in oncology has there been substantial progress in their clinical implementation...
April 21, 2017: Addiction
https://www.readbyqxmd.com/read/28431450/-livestock-associated-methicillin-resistant-staphylococcus-aureus-epidemiological-data-from-an-orthopaedic-department-in-north-west-germany
#11
Gerrit Steffen Maier, Fritz Thorey, Kristina Kolbow, Djordje Lazovic, Markus Lühmann, Jörg Ohnsorge, Uwe Maus
Background MRSA represents a considerable health threat to orthopaedic patients. Throughout the last decade, livestock-associated MRSA emerged increasingly in livestock all over Europe. LA-MRSA broke the species barrier, colonizing and causing infections in humans. Nevertheless, to date there are no studies concerning livestock-associated MRSA and orthopaedic patients. Therefore, we aimed to investigate the prevalence of LA-MRSA in a regional orthopaedic department localized in an area with high-density livestock...
April 21, 2017: Zeitschrift Für Orthopädie und Unfallchirurgie
https://www.readbyqxmd.com/read/28431345/insights-into-targeting-young-male-drivers-with-anti-speeding-advertising-an-application-of-the-step-approach-to-message-design-and-testing-satmdt
#12
I Lewis, K M White, B Ho, B Elliott, B Watson
In Australia, young drivers aged 17-25 years comprise 13% of the population yet account for 22% of all road deaths with young males over-represented in such trauma. Speeding represents a major contributing factor and advertising campaigns have long focused on promoting anti-speeding messages in the effort to reduce drivers' speeds. Positioned within a larger program of research aimed at developing, piloting, and evaluating a range of theoretically-informed anti-speeding messages, the current study reports results relating to the final phase of the research, the evaluation...
April 18, 2017: Accident; Analysis and Prevention
https://www.readbyqxmd.com/read/28431198/serum-amylase-and-lipase-and-urinary-trypsinogen-and-amylase-for-diagnosis-of-acute-pancreatitis
#13
REVIEW
Gianluca Rompianesi, Angus Hann, Oluyemi Komolafe, Stephen P Pereira, Brian R Davidson, Kurinchi Selvan Gurusamy
BACKGROUND: The treatment of people with acute abdominal pain differs if they have acute pancreatitis. It is important to know the diagnostic accuracy of serum amylase, serum lipase, urinary trypsinogen-2, and urinary amylase for the diagnosis of acute pancreatitis, so that an informed decision can be made as to whether the person with abdominal pain has acute pancreatitis. There is currently no Cochrane review of the diagnostic test accuracy of serum amylase, serum lipase, urinary trypsinogen-2, and urinary amylase for the diagnosis of acute pancreatitis...
April 21, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28431197/serum-c-reactive-protein-procalcitonin-and-lactate-dehydrogenase-for-the-diagnosis-of-pancreatic-necrosis
#14
REVIEW
Oluyemi Komolafe, Stephen P Pereira, Brian R Davidson, Kurinchi Selvan Gurusamy
BACKGROUND: The treatment of people with pancreatic necrosis differs from that of people with oedematous pancreatitis. It is important to know the diagnostic accuracy of serum C-reactive protein (CRP), serum procalcitonin, and serum lactate dehydrogenase (LDH) as a triage test for the detection of pancreatic necrosis in people with acute pancreatitis, so that an informed decision can be made as to whether the person with pancreatic necrosis needs further investigations such as computed tomography (CT) scan or magnetic resonance imaging (MRI) scan and treatment for pancreatic necrosis started...
April 21, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28431115/spatial-distribution-of-falciparum-malaria-infections-in-zanzibar-implications-for-focal-drug-administration-strategies-targeting-asymptomatic-parasite-carriers
#15
Anders Björkman, Jackie Cook, Hugh Sturrock, Mwinyi Msellem, Abdullah Ali, Weiping Xu, Fabrizio Molteni, Roly Gosling, Chris Drakeley, Andreas Mårtensson
Background.: Optimal use of mass/targeted screen-and-treat or mass or focal drug administration as malaria elimination strategies remains unclear. We therefore studied spatial distribution of Plasmodium falciparum infections to compare simulated effects of these strategies on reducing the parasite reservoir in a pre-elimination setting. Methods.: P. falciparum rapid diagnostic tests (RDTs) and molecular (polymerase chain reaction [PCR]) and serological (enzyme-linked immunosorbent assay) analyses were performed on finger-prick blood samples from a population-based survey in 3 adjacent communities...
May 1, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/28431035/medical-symptom-validity-test-performance-following-moderate-severe-traumatic-brain-injury-expectations-based-on-orientation-log-classification
#16
Stephen N Macciocchi, Ronald T Seel, Angela Yi, Sarah Small
Objective: This study examined performance on the Medical Symptom Validity test (MSVT) during acute rehabilitation for moderate-severe traumatic brain injury (TBI) stratified by Orientation Log (O-Log) scores. Method: Participants were 77 prospectively enrolled persons who sustained moderate-severe TBI and were acutely hospitalized secondary to the cognitive, medical and physical sequelae of their TBI. Participants were administered neuropsychological metrics, the O-Log and the MSVT a mean of 44 days post injury...
May 1, 2017: Archives of Clinical Neuropsychology: the Official Journal of the National Academy of Neuropsychologists
https://www.readbyqxmd.com/read/28431033/emotional-intelligence-in-agenesis-of-the-corpus-callosum
#17
Luke B Anderson, Lynn K Paul, Warren S Brown
People with agenesis of the corpus callosum (AgCC) with normal general intelligence have deficits in complex cognitive processing, as well as in social cognition. It is uncertain the extent to which impoverished processing of emotions may contribute to social processing deficiencies. We used the Mayer-Salovey-Caruso Emotional Intelligence Test to clarify the nature of emotional intelligence in 16 adults with AgCC. As hypothesized, persons with AgCC exhibited greater disparities from norms on tests involving more socially complex aspects of emotions...
May 1, 2017: Archives of Clinical Neuropsychology: the Official Journal of the National Academy of Neuropsychologists
https://www.readbyqxmd.com/read/28430935/sensation-seeking-and-adolescent-alcohol-use-exploring-the-mediating-role-of-unstructured-socializing-with-peers
#18
Sharon Sznitman, Batya Engel-Yeger
Background: Researchers have theorized that adolescents high in sensation seeking are particularly sensitive to positive reinforcement and the rewarding outcomes of alcohol use, and thus that the personality vulnerability is a direct causal risk factor for alcohol use. In contrast, the routine activity perspective theorizes that part of the effect of sensation seeking on alcohol use goes through the propensity that sensation seekers have towards unstructured socializing with peers. The study tests a model with indirect and direct paths from sensation seeking and participation in unstructured peer socialization to adolescent alcohol use...
May 1, 2017: Alcohol and Alcoholism: International Journal of the Medical Council on Alcoholism
https://www.readbyqxmd.com/read/28430793/identifying-a-combined-construct-of-grief-and-explosive-anger-as-a-response-to-injustice-amongst-survivors-of-mass-conflict-a-latent-class-analysis-of-data-from-timor-leste
#19
Susan J Rees, Alvin Kuowei Tay, Elisa Savio, Zelia Maria Da Costa, Derrick Silove
Previous studies have identified high rates of explosive anger amongst post-conflict populations including Timor-Leste. We sought to test whether explosive anger was integrally associated with symptoms of grief amongst the Timorese, a society that has experienced extensive conflict-related losses. In 2010 and 2011 we recruited adults (n = 2964), 18-years and older, living in an urban and a rural village in Timor-Leste. We applied latent class analysis to identify subpopulations based on symptoms of explosive anger and grief...
2017: PloS One
https://www.readbyqxmd.com/read/28430788/time-and-spatial-trends-in-lymphoid-leukemia-and-lymphoma-incidence-and-survival-among-children-and-adolescents-in-manitoba-canada-1984-2013
#20
Xibiao Ye, Mahmoud Torabi, Lisa M Lix, Salaheddin M Mahmud
OBJECTIVES: To test for time and spatial trends in lymphoid malignancies, including lymphoid leukemia (LL), Hodgkin lymphoma (HL), and non-Hodgkin lymphoma (NHL), in children and adolescents in the province of Manitoba, Canada. METHODS: Incident cases diagnosed between 1984 and 2013 were identified from the Manitoba Cancer Registry. We assessed time trends in age-standardized incidence rates using joinpoint regression and in 5-year relative survival using Poisson regression model...
2017: PloS One
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