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https://www.readbyqxmd.com/read/28227658/evaluating-the-deflection-of-dexterous-continuum-manipulators-with-unevenly-distributed-compliant-joints
#1
Anzhu Gao, Ryan J Murphy, Hao Liu, Iulian Iordachita, Mehran Armand, Anzhu Gao, Ryan J Murphy, Hao Liu, Iulian Iordachita, Mehran Armand, Hao Liu, Anzhu Gao, Iulian Iordachita, Mehran Armand, Ryan J Murphy
Dexterous continuum manipulators (DCMs) offer great potential for increasing instrument reach in minimally-invasive surgical procedures. We previously designed and fabricated a tendon driven DCM with a large instrument channel and evenly distributed compliant joints for minimally-invasive skull base surgery and the treatment of osteolysis during hip revision surgery. The evenly distributed compliant joints, in some cases, may limit the reach of the DCM during lesion removal. In this paper, we propose a finite element analysis (FEA) method for optimizing the distribution of the compliant joints based on treatment space requirements determined preoperatively...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226847/microneedle-cuff-electrodes-for-extrafascicular-peripheral-nerve-interfacing
#2
Yogi A Patel, Andrew Willsie, Isaac P Clements, Ricardo Aguilar, Swaminathan Rajaraman, Robert J Butera, Yogi A Patel, Andrew Willsie, Isaac P Clements, Ricardo Aguilar, Swaminathan Rajaraman, Robert J Butera, Ricardo Aguilar, Robert J Butera, Swaminathan Rajaraman, Yogi A Patel, Andrew Willsie, Isaac P Clements
OBJECTIVE: The work presented here describes a new tool for peripheral nerve interfacing, called the microneedle cuff (μN-cuff) electrode. APPROACH: μN arrays are designed and integrated into cuff electrodes for penetrating superficial tissues while remaining non-invasive to delicate axonal tracts. MAIN RESULTS: In acute testing, the presence of 75 μm height μNs decreased the electrode-tissue interface impedance by 0.34 kΩ, resulting in a 0...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226307/racial-ethnic-and-weight-status-disparities-in-dieting-and-disordered-weight-control-behaviors-among-early-adolescents
#3
Rachel F Rodgers, Karen E Peterson, Anne T Hunt, Jennifer L Spadano-Gasbarro, Tracy K Richmond, Mary L Greaney, S Bryn Austin
BACKGROUND: This study examined whether racial/ethnic minority early adolescents with overweight/obesity are at increased risk of disordered weight control behaviors, defined as unhealthy behaviors aiming to control or modify shape and weight, ranging from self-induced vomiting to the use of dietary supplements. METHODS: U.S. Middle school children (n=12.511) provided self-report of gender, race/ethnicity, height, and weight as well as dieting and disordered weight control behaviors...
February 14, 2017: Eating Behaviors
https://www.readbyqxmd.com/read/28225703/do-acute-hospitalised-patients-in-australia-have-a-different-body-mass-index-to-the-general-australian-population-a-point-prevalence-study
#4
Diane M Dennis, Vicki Carter, Michelle Trevenen, Jacinta Tyler, Luisa Perrella, Erika Lori, Ian Cooper
Objective The aim of the present study was to provide a current snapshot of the body mass index (BMI) of the entire patient cohort of an Australian tertiary hospital on one day and compare these data with current published Australian and state (Western Australia) population norms.Methods A single-centre prospective point prevalence study was performed whereby BMI was calculated following actual measurement of patient weight (nurse) and height (physiotherapist) on one day during 2015. Variables were summarised descriptively, and one-way analysis of variance was used to investigate the relationship between continuous BMI and hospital speciality...
February 23, 2017: Australian Health Review: a Publication of the Australian Hospital Association
https://www.readbyqxmd.com/read/28225525/effects-of-game-performance-on-softball-pitchers-and-catchers
#5
Gretchen D Oliver, Hillary A Plummer, Jessie Washington, Wendi H Weimar, Allison Brambeck
The purpose of this study was to examine the effects of game exposure on pitchers and catchers' hip and glenohumeral range of motion (ROM), isometric strength, and vertical jump performance and power. Five college female softball pitchers (174.24 ± 7.53 cm; 82.10 ± 11.27 kg; 20 ± 1.82 years) and four catchers (165.10 ± 9.04 kg; 68.61 ± 3.87 cm; 20 ± 1.41 years) participated. Hip and glenohumeral rotational ROM; hip and glenohumeral rotational isometric strength; hip abduction and adduction strength; and vertical jump height were assessed pre and post-game exposure...
February 21, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28225306/hydrocortisone-therapy-and-growth-trajectory-in-children-with-classical-congenital-adrenal-hyperplasia
#6
Carla Bizzarri, Nicola Improda, Chiara Maggioli, Donatella Capalbo, Silvia Roma, Ottavia Porzio, Mariacarolina Salerno, Marco Cappa
OBJECTIVE: Poor linear growth is one of the main concerns in children with congenital adrenal hyperplasia (CAH). We aimed to analyze factors affecting growth trajectory in children with classical CAH. METHODS: Clinical records of children followed from infancy up to the end of growth at two Italian tertiary referral hospitals were reviewed. Fifty-seven patients (31 males), treated with hydrocortisone and fludrocortisone only, were included. Clinical observations were divided into 3 groups: 0-2 years: 172 observations; from 2 years to puberty onset: 813 observations; after puberty onset: 527 observations...
February 22, 2017: Endocrine Practice
https://www.readbyqxmd.com/read/28225027/variable-salinity-responses-of-12-alfalfa-genotypes-and-comparative-expression-analyses-of-salt-response-genes
#7
Devinder Sandhu, Monica V Cornacchione, Jorge F S Ferreira, Donald L Suarez
Twelve alfalfa genotypes that were selected for biomass under salinity, differences in Na and Cl concentrations in shoots and K/Na ratio were evaluated in this long-term salinity experiment. The selected plants were cloned to reduce genetic variability within each genotype. Salt tolerance (ST) index of the genotypes ranged from 0.39 to 1. The most salt-tolerant genotypes SISA14-1 (G03) and AZ-90ST (G10), the top performers for biomass, exhibited the least effect on shoot number and height. SISA14-1 (G03) accumulated low Na and Cl under salinity...
February 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28224792/patterned-polymer-coatings-increase-the-efficiency-of-dew-harvesting
#8
Omar Al-Khayat, Jun Ki Hong, David M Beck, Andrew I Minett, Chiara Neto
Micro-patterned polymer surfaces, possessing both topographical and chemical characteristics, were used to capture atmospheric water. The micro-patterns mimic the structure on the back of a desert beetle that condenses water from air in a very dry environment. The patterned coatings were prepared by the dewetting of thin films of poly-4-vinylpyridine (P4VP) on top of polystyrene films (PS) films, upon solvent annealing, and consist of raised hydrophilic bumps on a hydrophobic background. The size and density distribution of the hydrophilic bumps could be tuned widely by tuning the initial thickness of the P4VP films: the diameter of the produced bumps and their height could be varied by almost two order of magnitude (1 µm - 80 µm, and 40 nm - 9000 nm, respectively), and their distribution density could be varied by 5 orders of magnitude...
February 22, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28224294/cardio-metabolic-risk-factors-in-youth-with-classical-21-hydroxylase-deficiency
#9
Kansuda Ariyawatkul, Supatporn Tepmongkol, Suphab Aroonparkmongkol, Taninee Sahakitrungruang
: Patients with congenital adrenal hyperplasia (CAH) appear to have adverse cardiovascular risk profile and other long-term health problems in adult life, but there are limited data in young CAH patients. We aim to evaluate the cardio-metabolic risk factors in adolescents and young adults with classical 21-hydroxylase deficiency (21-OHD). We performed a cross-sectional study of 21 patients (17 females) with classic CAH detected clinically and not through newborn screening, aged 15.2 ± 5...
February 21, 2017: European Journal of Pediatrics
https://www.readbyqxmd.com/read/28224178/the-role-of-body-weight-on-bone-in-anorexia-nervosa-a-hr-pqct-study
#10
Jacob Frølich, Stinus Hansen, Laura Al-Dakhiel Winkler, Andreas K Andresen, Anne Pernille Hermann, René K Støving
Anorexia nervosa (AN) is associated with decreased bone mineral density and increased risk of fracture. The aim of this study was to assess bone geometry, volumetric bone mineral density (vBMD), trabecular microarchitecture and estimated failure load in weight-bearing vs. non-weight-bearing bones in AN. We included twenty-five females with AN, and twenty-five female controls matched on age and height. Bone geometry, vBMD and trabecular microarchitecture were assessed using high-resolution peripheral quantitative computed tomography of the distal radius and tibia...
February 21, 2017: Calcified Tissue International
https://www.readbyqxmd.com/read/28223945/toward-respiratory-assessment-using-depth-measurements-from-a-time-of-flight-sensor
#11
Charles Sharp, Vahid Soleimani, Sion Hannuna, Massimo Camplani, Dima Damen, Jason Viner, Majid Mirmehdi, James W Dodd
Introduction: There is increasing interest in technologies that may enable remote monitoring of respiratory disease. Traditional methods for assessing respiratory function such as spirometry can be expensive and require specialist training to perform and interpret. Remote, non-contact tracking of chest wall movement has been explored in the past using structured light, accelerometers and impedance pneumography, but these have often been costly and clinical utility remains to be defined. We present data from a 3-Dimensional time-of-flight camera (found in gaming consoles) used to estimate chest volume during routine spirometry maneuvres...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28223816/prevalence-of-metabolic-syndrome-in-adolescents-living-in-mthatha-south-africa
#12
Morongwe Annah Sekokotla, Nandu Goswami, Constance Rufaro Sewani-Rusike, Jehu Erapu Iputo, Benedicta Ngwenchi Nkeh-Chungag
OBJECTIVE: Metabolic syndrome (MetS), defined as the clustering of three of five risk factors (hypertension, obesity, triglyceridemia, dyslipidemia and hyperglycemia), is being increasingly mentioned among children and adolescents despite there being no consensus on how it should be defined in this set of population. Furthermore, very few studies have focused on MetS in children and adolescents in sub-Saharan populations. This study, therefore, aimed at determining the prevalence of the MetS and contributing risk in adolescents living in Mthatha, South Africa...
2017: Therapeutics and Clinical Risk Management
https://www.readbyqxmd.com/read/28223485/on-the-shape-of-giant-soap-bubbles
#13
Caroline Cohen, Baptiste Darbois Texier, Etienne Reyssat, Jacco H Snoeijer, David Quéré, Christophe Clanet
We study the effect of gravity on giant soap bubbles and show that it becomes dominant above the critical size [Formula: see text], where [Formula: see text] is the mean thickness of the soap film and [Formula: see text] is the capillary length ([Formula: see text] stands for vapor-liquid surface tension, and [Formula: see text] stands for the liquid density). We first show experimentally that large soap bubbles do not retain a spherical shape but flatten when increasing their size. A theoretical model is then developed to account for this effect, predicting the shape based on mechanical equilibrium...
February 21, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28222885/the-influence-of-lip-form-on-incisal-display-with-lips-in-repose-on-the-esthetic-preferences-of-dentists-and-lay-people
#14
Jee Kim, Richard Topolski, Douglas Dickinson, Van Ramos
STATEMENT OF PROBLEM: Information is lacking for viewer preferences for incisal display with lips in repose. PURPOSE: The purpose of this online survey was to establish measurement parameters to classify and define a lip form and to evaluate the influence of lip form on dentists' and laypersons' preferences for the amount of incisal display with lips in repose. MATERIAL AND METHODS: Computer-generated male and female models were created using 3 different lip forms each, straight, moderate, and high...
February 17, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/28222520/interactive-effects-of-dementia-severity-and-comorbidities-on-medicare-expenditures
#15
Carolyn W Zhu, Stephanie Cosentino, Katherine A Ornstein, Yian Gu, Howard Andrews, Yaakov Stern
BACKGROUND: Few studies have examined how dementia and comorbidities may interact to affect healthcare expenditures. OBJECTIVE: To examine whether effects of dementia severity on Medicare expenditures differed for individuals with different levels of comorbidities. METHODS: Data are drawn from the Washington Heights-Inwood Columbia Aging Project (WHICAP). Comprehensive clinical assessments of dementia severity were systematically carried out at ∼18 month intervals...
February 10, 2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/28222325/household-food-group-expenditure-patterns-are-associated-with-child-anthropometry-at-ages-5-8-and-12-years-in-ethiopia-india-peru-and-vietnam
#16
Debbie L Humphries, Kirk A Dearden, Benjamin T Crookston, Tassew Woldehanna, Mary E Penny, Jere R Behrman
: Population-level analysis of dietary influences on nutritional status is challenging in part due to limitations in dietary intake data. Household expenditure surveys, covering recent household expenditures and including key food groups, are routinely conducted in low- and middle-income countries. These data may help identify patterns of food expenditure that relate to child growth. OBJECTIVES: We investigated the relationship between household food expenditures and child growth using factor analysis...
February 14, 2017: Economics and Human Biology
https://www.readbyqxmd.com/read/28221330/comparison-of-anterior-segment-optical-coherence-tomography-bleb-grading-moorfields-bleb-grading-system-and-intraocular-pressure-after-trabeculectomy
#17
Joanne C Wen, Sandra S Stinnett, Sanjay Asrani
PURPOSE: To compare a novel anterior segment optical coherence tomography (AS-OCT) bleb grading system with a clinical bleb grading system and both with intraocular pressure (IOP) following trabeculectomy surgery. MATERIALS AND METHODS: A novel AS-OCT grading system based on bleb size and internal reflectivity was developed. An imaging center was tasked with masked grading of AS-OCT images acquired by multiple surgical sites at postoperative week (POW) 2, postoperative month (POM) 4, 6, and 12, respectively...
February 17, 2017: Journal of Glaucoma
https://www.readbyqxmd.com/read/28221204/frequency-and-risk-factors-for-malnutrition-in-children-undergoing-general-anaesthesia-in-a-french-university-hospital
#18
Louis Gerbaud-Morlaes, Eric Frison, Florence Babre, Arnaud De Luca, Anne Didier, Maryline Borde, Brigitte Zaghet, Hélène Batoz, François Semjen, Karine Nouette-Gaulain, Raphael Enaud, Régis Hankard, Thierry Lamireau
BACKGROUND: Malnutrition is often underdiagnosed in hospitalised children, although it is associated with postoperative complications, longer hospital lengths of stay and increased healthcare-related costs. OBJECTIVE: We aimed to estimate the frequency of, and identify factors associated with, malnutrition in children undergoing anaesthesia. DESIGN: Cross-sectional observational study. SETTING: Paediatric anaesthesia department at the University Children's Hospital, Bordeaux, France...
February 17, 2017: European Journal of Anaesthesiology
https://www.readbyqxmd.com/read/28220844/waist-to-height-ratio-is-an-effective-indicator-for-comprehensive-cardiovascular-health
#19
Shiwei Shen, Yun Lu, Huajin Qi, Feng Li, Zhenhai Shen, Liuxin Wu, Chengjian Yang, Ling Wang, Kedong Shui, Weifeng Yao, Dongchang Qiang, Jingting Yun, Lin Zhou
The aim of this study was to determine the associations between cardiovascular health and the waist circumference (WC) and waist-to-height ratio (WHtR). A cross-sectional study was performed recruiting 26701 middle-aged Chinese men. Of the seven ideal cardiovascular health metrics, body mass index (BMI), total cholesterol (TC), blood pressure (BP), and fasting blood glucose (FBG) were found to increase with an elevation of the mean WC and WHtR. The mean WC and WHtR were significantly lower in the subjects with intermediate or ideal cardiovascular health than those with poor or intermediate health...
February 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28220807/field-based-high-throughput-phenotyping-rapidly-identifies-genomic-regions-controlling-yield-components-in-rice
#20
Paul Tanger, Stephen Klassen, Julius P Mojica, John T Lovell, Brook T Moyers, Marietta Baraoidan, Maria Elizabeth B Naredo, Kenneth L McNally, Jesse Poland, Daniel R Bush, Hei Leung, Jan E Leach, John K McKay
To ensure food security in the face of population growth, decreasing water and land for agriculture, and increasing climate variability, crop yields must increase faster than the current rates. Increased yields will require implementing novel approaches in genetic discovery and breeding. Here we demonstrate the potential of field-based high throughput phenotyping (HTP) on a large recombinant population of rice to identify genetic variation underlying important traits. We find that detecting quantitative trait loci (QTL) with HTP phenotyping is as accurate and effective as traditional labor-intensive measures of flowering time, height, biomass, grain yield, and harvest index...
February 21, 2017: Scientific Reports
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