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https://www.readbyqxmd.com/read/28432905/statistical-analysis-of-dislocations-and-dislocation-boundaries-from-ebsd-data
#1
C Moussa, M Bernacki, R Besnard, N Bozzolo
Electron BackScatter Diffraction (EBSD) is often used for semi-quantitative analysis of dislocations in metals. In general, disorientation is used to assess Geometrically Necessary Dislocations (GNDs) densities. In the present paper, we demonstrate that the use of disorientation can lead to inaccurate results. For example, using the disorientation leads to different GND density in recrystallized grains which cannot be physically justified. The use of disorientation gradients allows accounting for measurement noise and leads to more accurate results...
April 14, 2017: Ultramicroscopy
https://www.readbyqxmd.com/read/28432883/sagittal-plane-joint-kinetics-during-stair-ascent-in-patients-with-peripheral-arterial-disease-and-intermittent-claudication
#2
Stephanie L King, Natalie Vanicek, Thomas D O'Brien
Stair negotiation poses a substantial physical demand on the musculoskeletal system and this challenging task can place individuals at risk of falls. Peripheral arterial disease (PAD) can cause intermittent claudication (IC) pain in the calf and results in altered gait mechanics during level walking. However, whether those with PAD-IC adopt alternate strategies to climb stairs is unknown. Twelve participants with PAD-IC (six bilateral and six unilateral) and 10 healthy controls were recruited and instructed to ascend a five-step staircase whilst 3D kinematic data of the lower-limbs were recorded synchronously with kinetic data from force plates embedded into the staircase on steps two and three...
March 28, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28432823/-gerimedjc-the-twitter-complement-to-the-traditional-format-geriatric-medicine-journal-club
#3
Amanda I Gardhouse, Laura Budd, Seu Y C Yang, Camilla L Wong
Twitter is a public microblogging platform that overcomes physical limitations and allows unrestricted participation beyond academic silos, enabling interactive discussions. Twitter-based journal clubs have demonstrated growth, sustainability, and worldwide communication, using a hashtag (#) to follow participation. This article describes the first year of #GeriMedJC, a monthly 1-hour live, 23-hour asynchronous Twitter-based complement to the traditional-format geriatric medicine journal club. The Twitter moderator tweets from the handle @GeriMedJC; encourages use of #GeriMedJC; and invites content experts, study authors, and followers to participate in critical appraisal of medical literature...
April 22, 2017: Journal of the American Geriatrics Society
https://www.readbyqxmd.com/read/28432818/characterization-of-decellularized-ovine-small-intestine-submucosal-layer-as-extracellular-matrix-based-scaffold-for-tissue-engineering
#4
Morteza Rashtbar, Jamshid Hadjati, Jafar Ai, Issa Jahanzad, Mahmoud Azami, Sadegh Shirian, Somayeh Ebrahimi-Barough, Esmaeil Sadroddiny
Extracellular matrix-based scaffolds derived from mammalian tissues have been used in tissue engineering applications. Among all the tissues, decellularized small intestine submucosal layer (SIS) has been recently investigated for its exceptional characteristics and biocompatibilities. These investigations have been mainly focused on the decellularized porcine SIS; however, there has not been any report on ovine SIS (OSIS) layer. In this study, OSIS was decellularized and its physical, chemical, and morphological properties were evaluated...
April 22, 2017: Journal of Biomedical Materials Research. Part B, Applied Biomaterials
https://www.readbyqxmd.com/read/28432710/medical-students-perceptions-of-the-importance-of-exercise-and-their-perceived-competence-in-prescribing-exercise-to-older-people
#5
Agathe Daria Jadczak, Khai Loon Tam, Solomon Yu, Renuka Visvanathan
OBJECTIVE: To determine the effects of a 4.5-week geriatric medicine course on fifth year medical students' perception of the importance of and their competence in prescribing exercise to older people. METHODS: The modified Exercise and Physical Activity Competence Questionnaire was administered to 81 students before and after the course. Scores ranged from 0 to 6. One open-ended question about perceived barriers to exercise prescription was asked. RESULTS: Students' perceptions of the importance of designing an exercise prescription (P = 0...
April 22, 2017: Australasian Journal on Ageing
https://www.readbyqxmd.com/read/28432687/impact-of-caring-for-patients-with-severe-and-complex-disabilities-on-health-care-workers-quality-of-life-determinants-and-specificities
#6
Marie-Christine Rousseau, Karine Baumstarck, Tanguy Leroy, Cherazad Khaldi-Cherif, Catherine Brisse, Laurent Boyer, Noémie Resseguier, Claire Morando, Thierry Billette De Villemeur, Pascal Auquier
AIM: Individuals with severe and complex disabilities, defined by a combination of profound intellectual impairment and serious motor deficit resulting in extreme dependence, often remain in hospital or at residential facilities. The aim of this study was to identify the determinants of quality of life (QoL) of 238 health care workers (HCWs) caring for individuals with severe and complex disabilities. METHOD: We conducted a cross-sectional study. The recruitment of the HCWs was performed in five French centres specializing in patients with severe and complex disabilities...
April 22, 2017: Developmental Medicine and Child Neurology
https://www.readbyqxmd.com/read/28432680/longitudinal-physical-activity-and-sedentary-behaviour-in-preschool-aged-children-with-cerebral-palsy-across-all-functional-levels
#7
Piyapa Keawutan, Kristie L Bell, Stina Oftedal, Robert S Ware, Richard D Stevenson, Peter S W Davies, Roslyn N Boyd
AIM: To investigate longitudinal changes of habitual physical activity (HPA) and sedentary time in children with cerebral palsy (CP) aged 1 year 6 months to 5 years across all functional abilities. METHOD: At study entry, 95 children (62 males, 33 females) were classified using the Gross Motor Function Classification System (GMFCS) at levels I (50), II (9), III (16), IV (6), and V (14). Physical activity was recorded on a total of 159 occasions at four possible time points: 1 year 6 months to 2 years; 2 years 6 months to 3 years; 4 years; and 5 years using ActiGraph for 3 days...
April 22, 2017: Developmental Medicine and Child Neurology
https://www.readbyqxmd.com/read/28432671/investigation-of-the-physical-effects-of-respiratory-motion-compensation-in-a-large-population-of-patients-undergoing-tc-99m-cardiac-perfusion-spect-ct-stress-imaging
#8
P Hendrik Pretorius, Karen L Johnson, Seth T Dahlberg, Michael A King
BACKGROUND: Respiratory motion can deteriorate image fidelity in cardiac perfusion SPECT. We determined the extent of respiratory motion, assessed its impact on image fidelity, and investigated the existence of gender differences, thereby examining the influence of respiratory motion in a large population of patients. METHODS: One thousand one hundred and three SPECT/CT patients underwent visual tracking of markers on their anterior surface during stress acquisition to track respiratory motion...
April 21, 2017: Journal of Nuclear Cardiology: Official Publication of the American Society of Nuclear Cardiology
https://www.readbyqxmd.com/read/28432638/community-gardens-as-environmental-health-interventions-benefits-versus-potential-risks
#9
REVIEW
W K Al-Delaimy, M Webb
PURPOSE OF REVIEW: The purpose of this paper was to summarize current findings on community gardens relevant to three specific areas of interest as follows: (1) health benefits, (2) garden interventions in developing versus developed countries, and (3) the concerns and risks of community gardening. RECENT FINDINGS: Community gardens are a reemerging phenomenon in many low- and high-income urban neighborhoods to address the common risk factors of modern lifestyle...
April 21, 2017: Current Environmental Health Reports
https://www.readbyqxmd.com/read/28432628/design-of-water-quality-monitoring-networks-with-two-information-scenarios-in-tropical-andean-basins
#10
Juan Carlos Bastidas, Jorge Julián Vélez, Jeannette Zambrano, Adela Londoño
Design and redesign of water quality monitoring networks were evaluated for two similarly sized watersheds in the tropical Andes via optimization techniques using geographic information system technology (GIS) and a matter-element analysis of 5-day biological oxygen demand (BOD5) and total suspended solids (TSS). This resulted in a flexible, objectively based design for a 1128-km(2) watershed without prior water quality data (La Miel River), and a network redesign of a 1052-km(2) watershed with historical water quality monitoring (Chinchiná River)...
April 21, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28432611/comparison-of-human-erythrocyte-purine-nucleotide-metabolism-and-blood-purine-and-pyrimidine-degradation-product-concentrations-before-and-after-acute-exercise-in-trained-and-sedentary-subjects
#11
Wioleta Dudzinska, M Suska, A Lubkowska, K Jakubowska, M Olszewska, K Safranow, D Chlubek
This study aimed at evaluating the concentration of erythrocyte purine nucleotides (ATP, ADP, AMP, IMP) in trained and sedentary subjects before and after maximal physical exercise together with measuring the activity of purine metabolism enzymes as well as the concentration of purine (hypoxanthine, xanthine, uric acid) and pyrimidine (uridine) degradation products in blood. The study included 15 male elite rowers [mean age 24.3 ± 2.56 years; maximal oxygen uptake (VO2max) 52.8 ± 4.54 mL/kg/min; endurance and strength training 8...
April 21, 2017: Journal of Physiological Sciences: JPS
https://www.readbyqxmd.com/read/28432577/implicit-reasons-for-disclosure-of-the-use-of-complementary-health-approaches-cha-a-consumer-commitment-perspective
#12
Fuschia M Sirois, Helene Riess, Dawn M Upchurch
BACKGROUND: Disclosure of the use of complementary health approaches (CHA) is an important yet understudied health behavior with important implications for patient care. Yet research into disclosure of CHA has been atheoretical and neglected the role of health beliefs. PURPOSE: Using a consumer commitment model of CHA use as a guiding conceptual framework, the current study tests the hypotheses that perceived positive CHA outcomes (utilitarian values) and positive CHA beliefs (symbolic values) are associated with disclosure of CHA to conventional care providers in a nationally representative US sample...
April 21, 2017: Annals of Behavioral Medicine: a Publication of the Society of Behavioral Medicine
https://www.readbyqxmd.com/read/28432560/executive-function-and-life-space-mobility-in-old-age
#13
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/28432558/resolved-parental-infertility-and-children-s-educational-achievement
#14
Amelia R Branigan, Jonas Helgertz
Although difficulty conceiving a child has long been a major medical and social preoccupation, it has not been considered as a predictor of long-term outcomes in children ultimately conceived. This is consistent with a broader gap in knowledge regarding the consequences of parental health for educational performance in offspring. Here we address that omission, asking how resolved parental infertility relates to children's academic achievement. In a sample of all Swedish births between 1988 and 1995, we find that involuntary childlessness prior to either a first or a second birth is associated with lower academic achievement (both test scores and GPA) in children at age 16, even if the period of infertility was prior to a sibling's birth rather than the child's own...
April 21, 2017: Demography
https://www.readbyqxmd.com/read/28432494/primary-prevention-and-screening-practices-among-long-term-breast-cancer-survivors
#15
Lori Mandelzweig, Angela Chetrit, Tova Amitai, Barbara Silverman, Nava Siegelmann-Danieli, Siegal Sadetzki
PURPOSE: Parallel to increasing survival of breast cancer (BC) patients, a need has arisen to characterize the follow-up required to improve and maintain their health. Our study aimed to assess changes in lifestyle habits over time among the study population, compare compliance rates of selected primary and secondary prevention practices between long-term BC survivors and an age-matched comparison group, and identify factors associated with compliance to these practices. METHODS: The study population comprised 250 Israeli BC survivors, diagnosed with BC between 1999 and 2003, without evidence of disease after 8-12 years, and 250 women with no cancer history, individually matched to survivors by age and area of residence...
April 21, 2017: Cancer Causes & Control: CCC
https://www.readbyqxmd.com/read/28432457/outcome-and-revision-rate-of-uncemented-glenohumeral-resurfacing-c-a-p-after-5-8%C3%A2-years
#16
P C Geervliet, M P J van den Bekerom, P Spruyt, M Curvers, A van Noort, C P J Visser
BACKGROUND: Resurfacing of the glenohumeral joint for patients with glenohumeral arthritis has gained popularity since the first introduction. We report the mid-term results of the Global C.A.P. uncemented resurfacing shoulder prosthesis (DePuy Synthes). METHODS: From January 2007 to December 2009, 48 humeral cementless resurfacing prostheses in 46 patients were performed. All patients were diagnosed with primary glenohumeral osteoarthritis. Patients were contacted for review; the Constant Score, visual analog pain scale, Dutch Simple Shoulder Test, SF-12 scores and physical examination were assessed both preoperatively and yearly postoperatively...
April 21, 2017: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/28432448/resistance-to-radial-expansion-limits-muscle-strain-and-work
#17
E Azizi, A R Deslauriers, N C Holt, C E Eaton
The collagenous extracellular matrix (ECM) of skeletal muscle functions to transmit force, protect sensitive structures, and generate passive tension to resist stretch. The mechanical properties of the ECM change with age, atrophy, and neuromuscular pathologies, resulting in an increase in the relative amount of collagen and an increase in stiffness. Although numerous studies have focused on the effect of muscle fibrosis on passive muscle stiffness, few have examined how these structural changes may compromise contractile performance...
April 21, 2017: Biomechanics and Modeling in Mechanobiology
https://www.readbyqxmd.com/read/28432409/innovative-treatment-modalities-for-urinary-incontinence-a-european-survey-identifying-experience-and-attitude-of-healthcare-providers
#18
Arnoud W Kastelein, Maarten F A Dicker, Brent C Opmeer, Sonia S Angles, Kaisa E Raatikainen, Joan F Alonso, Diana Tăut, Olavi Airaksinen, Linda D Cardozo, Jan-Paul W R Roovers
INTRODUCTION AND HYPOTHESIS: Urinary incontinence is a common condition in women, with a reported prevalence ranging from 25% to 51%. Of these women, an estimated 38% suffer from stress urinary incontinence (SUI). A European research consortium is investigating an innovative system based on information and communication technology for the conservative treatment of women with SUI. When introducing a new intervention, implementation barriers arise and need to be identified. Therefore, we investigated healthcare providers' experience with and attitude towards innovative care options...
April 21, 2017: International Urogynecology Journal
https://www.readbyqxmd.com/read/28432369/sensitivity-to-antibiotics-of-bacteria-exposed-to-gamma-radiation-emitted-from-hot-soils-of-the-high-background-radiation-areas-of-ramsar-northern-iran
#19
Seyed Mohammad Javad Mortazavi, Samira Zarei, Mohammad Taheri, Saeed Tajbakhsh, Seyed Alireza Mortazavi, Sahar Ranjbar, Fatemeh Momeni, Samaneh Masoomi, Leila Ansari, Mohammad Mehdi Movahedi, Shahram Taeb, Sina Zarei, Masood Haghani
BACKGROUND: Over the past several years our laboratories have investigated different aspects of the challenging issue of the alterations in bacterial susceptibility to antibiotics induced by physical stresses. OBJECTIVE: To explore the bacterial susceptibility to antibiotics in samples of Salmonella enterica subsp. enterica serovar Typhimurium (S. typhimurium), Staphylococcus aureus, and Klebsiella pneumoniae after exposure to gamma radiation emitted from the soil samples taken from the high background radiation areas of Ramsar, northern Iran...
April 2017: International Journal of Occupational and Environmental Medicine
https://www.readbyqxmd.com/read/28432366/exploring-quantum-griffiths-phase-in-ni1-x-v-x-nanoalloys
#20
Priyadarsini Swain, Suneel K Srivastava, Sanjeev K Srivastava
Metallic Ni1-x V x alloys exhibit a ferromagnetic to paramagnetic disordered quantum phase transition in bulk. Such a phase transition is accompanied by a quantum Griffiths phase (QGP), featuring fractional power-law temperature dependences of physical variables, like magnetic susceptibility and specific heat, at low temperatures. As nanoparticles (NP's) usually exhibit properties significantly different from their bulk counterparts, it is intriguing to explore the occurrence of quantum Griffiths phase in Ni1-x V x nanoalloys...
April 21, 2017: Scientific Reports
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