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https://www.readbyqxmd.com/read/28533297/diabetes-leveraging-the-tipping-point-of-the-diabetes-pandemic
#1
Jian-Ping Weng, Gang Hu
No abstract text is available yet for this article.
June 2017: Diabetes
https://www.readbyqxmd.com/read/28532943/evaluation-of-preloaded-intraocular-lens-injection-systems-ex%C3%A2-vivo-study
#2
Mayank A Nanavaty, Magdalena Kubrak-Kisza
PURPOSE: To compare preloaded intraocular lens (IOL) injection systems. SETTING: Sussex Eye Hospital, Brighton, United Kingdom. DESIGN: Experimental study. METHODS: In 30 porcine eyes, 5 preloaded +22.0 diopters IOLs were implanted from each of the following preloaded IOL systems: Ultrasert (U), iTec (iT), Eyecee (E), iSert (iS), Rayone (R), and CT Lucia (CT). External and internal wound size was measured. Nozzle damage was assessed using digital photography...
April 2017: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/28532189/non-selective-beta-blocker-treatment-does-not-impact-on-kidney-function-in-cirrhotic-patients-with-varices
#3
Bernhard Scheiner, Diego Parada-Rodriguez, Theresa Bucsics, Philipp Schwabl, Mattias Mandorfer, Nikolaus Pfisterer, Florian Riedl, Wolfgang Sieghart, Arnulf Ferlitsch, Michael Trauner, Markus Peck-Radosavljevic, Thomas Reiberger
GOALS AND BACKGROUND: Non-selective beta-blockers (NSBBs) are used for bleeding prophylaxis in cirrhotic patients with gastroesophageal varices (GEVs). Recent data suggested that NSBB treatment might increase the risk of renal dysfunction in patients with refractory ascites due to an impaired response to acute haemodynamic stress. STUDY: Retrospective longitudinal assessment of kidney function in a cohort of cirrhotic patients with GEVs with vs. without NSBB therapy...
May 22, 2017: Scandinavian Journal of Gastroenterology
https://www.readbyqxmd.com/read/28527888/tetrameric-structure-of-the-flagellar-cap-protein-flid-from-serratia-marcescens
#4
So Yeon Cho, Wan Seok Song, Ho Jeong Hong, Geun-Shik Lee, Seung Goo Kang, Hyun-Jeong Ko, Pyeung-Hyeun Kim, Sung-Il Yoon
Bacterial motility is provided by the flagellum. FliD is located at the distal end of the flagellum and plays a key role in the insertion of each flagellin protein at the growing tip of the flagellar filament. Because FliD functions as an oligomer, the determination of the oligomeric state of FliD is critical to understanding the molecular mechanism of FliD-mediated flagellar growth. FliD has been shown to adopt a pentameric or a hexameric structure depending on the bacterial species. Here, we report another distinct oligomeric form of FliD based on structural and biochemical studies...
May 17, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28527001/the-relative-abundance-of-dimethylsulfoniopropionate-dmsp-among-other-zwitterions-in-branching-coral-at-heron-island-southern-great-barrier-reef
#5
Hilton B Swan, Elisabeth S M Deschaseaux, Graham B Jones, Bradley D Eyre
Dimethylsulfoniopropionate (DMSP) and eleven other target zwitterions were quantified in the branch tips of six Acropora species and Stylophora pistillata hard coral growing on the reef flat surrounding Heron Island in the southern Great Barrier Reef (GBR), Australia. Hydrophilic interaction liquid chromatography mass spectrometry (HILIC-MS) was used for sample analysis with isotope dilution MS applied to quantify DMSP. The concentration of DMSP was ten times greater in A. aspera than A. valida, with this difference being maintained throughout the spring, summer and winter seasons...
May 20, 2017: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/28526468/-a-comparison-of-three-different-needles-used-for-spinal-anesthesia-in-terms-of-squamous-epithelial-cell-transport-risk
#6
Ünal Kantekin Çiğdem, Şahin Sevinç, Bolat Esef, Öztürk Süreyya, Gencer Muzaffer, Demirel Akif
BACKGROUND AND OBJECTIVES: To investigate the differences in the number of squamous epithelial cells carried to the spinal canal by three different types of spinal needle tip of the same size. METHODS: Patients were allocated into three groups (Group I, Group II, Group III). Spinal anesthesia was administered to Group I (n=50) using a 25G Quincke needle, to Group II (n=50) using a 25G pencil point spinal needle, and to Group III (n=50) using a non-cutting atraumatic needle with special bending...
May 16, 2017: Revista Brasileira de Anestesiologia
https://www.readbyqxmd.com/read/28523646/phylogenetics-and-ecomorphology-of-emarginate-primary-feathers
#7
Brett Klaassen van Oorschot, Ho Kwan Tang, Bret W Tobalske
Wing tip slots are a distinct morphological trait broadly expressed across the avian clade, but are generally perceived to be unique to soaring raptors. These slots are the result of emarginations on the distal leading and trailing edges of primary feathers, and allow the feathers to behave as individual airfoils. Research suggests these emarginate feathers are an adaptation to increase glide efficiency by mitigating induced drag in a manner similar to aircraft winglets. If so, we might expect birds known for gliding and soaring to exhibit emarginate feather morphology; however, that is not always the case...
May 18, 2017: Journal of Morphology
https://www.readbyqxmd.com/read/28523243/maxillomandibular-arch-width-differences-at-estimated-centers-of-resistance-comparison-between-normal-occlusion-and-skeletal-class-iii-malocclusion
#8
Yun-Jin Koo, Sung-Hwan Choi, Byeong-Tak Keum, Hyung-Seog Yu, Chung-Ju Hwang, Birte Melsen, Kee-Joon Lee
OBJECTIVE: To evaluate the differences in maxillomandibular transverse measurements at either the crown or the estimated center of resistance (CR), and to compare values between normal occlusion and Class III malocclusion groups. METHODS: Dental casts and computed tomography (CT) data from 30 individuals with normal occlusion and 30 with skeletal Class III malocclusions were evaluated. Using the casts, dental arch widths (DAWs) were measured from the cusp tips, and basal arch widths (BAWs-cast) were measured as the distance between the points at the mucogingival junction adjacent to the respective cusp tips...
May 2017: Korean Journal of Orthodontics
https://www.readbyqxmd.com/read/28521539/jackets-off-the-impact-of-laser-fiber-stripping-on-power-output-and-stone-degradation
#9
Cayde Ritchie, Patrick Yang, Brandon Peplinski, Mohamed Keheila, Salim Cheriyan, Samuel R Abourbih, Wayne Kelln, D Duane Baldwin
PURPOSE: To investigate the effect of laser fiber stripping on stone fragmentation and laser fiber power output. MATERIALS & METHODS: In a benchtop simulation of laser lithotripsy, 20 BegoStone phantoms were positioned within a ureteral model and irradiated for 10 minutes at 8 Hz and 0.8 J. A freshly cleaved 365 μm laser fiber was used for all trials, with half of the fibers also undergoing stripping. Power output was measured at one-minute intervals, beginning with an initial pre-lithotripsy recording at zero minutes...
May 18, 2017: Journal of Endourology
https://www.readbyqxmd.com/read/28516401/endovascular-crossing-of-chronic-total-occlusions-using-an-impulse-an-explorative-design-study
#10
Aimée Sakes, Marleen van der Wiel, Dimitra Dodou, Paul Breedveld
In this study we investigated whether exerting an impulse on a Chronic Total Occlusion (CTO) improves the success rate of CTO crossing as compared to the currently used method of statically pushing the guidewire against the CTO. A prototype (Ø2 mm) was developed that generates translational momentum using a spring-loaded indenter and converts it to an impulse during impact. Mechanical performance was evaluated by measuring the peak force and momentum for different spring compressions and strike distances in air and blood-mimicking fluid...
May 17, 2017: Cardiovascular Engineering and Technology
https://www.readbyqxmd.com/read/28512481/influence-of-root-canal-curvature-on-the-accuracy-of-root-zx-electronic-foramen-locator-an-in-vitro-study
#11
Masoud Saatchi, Shiva Iravani, Mehrdad Akhavan Khaleghi, Amin Mortaheb
INTRODUCTION: The aim of this in vitro study was to evaluate the correlation between accuracy of Root ZX electronic foramen locator and root canal curvature. METHODS AND MATERIALS: One hundred and ten extracted mandibular molars were selected. Access cavity was prepared and coronal enlargement of mesiobuccal canal was performed. A #10 Flexofile was inserted into the mesiobuccal canal, and a radiography was taken to measure the degree of curvature by Schneider's method...
2017: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/28510657/heteroblasty-in-epiphytic-bromeliads-functional-implications-for-species-in-understorey-and-exposed-growing-sites
#12
Joachim Beyschlag, Gerhard Zotz
Background and Aims: The functional relevance of heteroblasty, an abrupt morphological change in the ontogeny of a considerable number of angiosperm species, is still largely unresolved. During the ontogeny of many epiphytic Tillandsioids (Bromeliaceae), such a change occurs when small individuals transform into larger, tank-forming individuals that are capable of external water storage. Apart from its fundamental effect on plant water relations, the associated transition from narrow to broader leaves also affects plant architecture...
May 16, 2017: Annals of Botany
https://www.readbyqxmd.com/read/28506167/two-dimensional-morphological-characteristics-of-the-distal-radius-on-axial-magnetic-resonance-image-and-the-effects-on-distal-screw-length
#13
Ho Youn Park, Youn Tae Roh, Dong Uk Min, Seok Whan Song, Yoo Joon Sur
BACKGROUND: Detection of dorsal cortical penetration of distal locking screws is difficult owing to the irregular shape of the dorsal surface of the distal radius. This study was designed to analyze two-dimensional morphological characteristics of the distal radius on axial magnetic resonance image, and to suggest a guideline for evaluation of screw length in distal radius fractures on the fluoroscopic or plain X-ray true lateral image. METHODS: Anteroposterior length and lateral width of the distal radius, distance between the highest and the lowest point of the dorsal cortex (deceptive length), and widths of the first to second (hazard zone) and the third to fifth extensor compartments (safe zone) at the Lister tubercle level were measured on 104 axial magnetic resonance images by two hand surgeons...
June 2017: Journal of Hand Surgery Asian-Pacific Volume
https://www.readbyqxmd.com/read/28501270/a-novel-stereotactic-frame-for-real-pet-guided-biopsies-a-preclinical-proof-of-concept
#14
J Cortes-Rodicio, G Sanchez-Merino, M A Garcia-Fidalgo, I Tobalina-Larrea
PURPOSE: To design, build and test a stereotactic device that allows PET image-guided biopsies to be performed. METHODS: An initial prototype consisting of four main pieces, one of which contains radioactive markers to make it visible in the PET images, was built using a 3D printer. Once the device is mounted, a spherical coordinate system is built with the entrance needle point in the skin as the origin of coordinates. Two in-house software programs, namely getCoord...
May 10, 2017: Physica Medica: PM
https://www.readbyqxmd.com/read/28497703/association-between-media-doses-of-the-tips-from-former-smokers-campaign-and-cessation-behaviors-and-intentions-to-quit-among-cigarette-smokers-2012-2015
#15
Kevin C Davis, Deesha Patel, Paul Shafer, Jennifer Duke, Rebecca Glover-Kudon, William Ridgeway, Shanna Cox
BACKGROUND: Since 2012, the Centers for Disease Control and Prevention (CDC) has implemented Tips From Former Smokers ( Tips), the first federally funded tobacco education campaign in the United States. To date, there are no evaluations of its long-term impact. AIMS: To assess the impact of varied doses of the Tips campaign from 2012 through 2015 on cessation-related behaviors and intentions among U.S. smokers. METHOD: We used a national probability-based online survey of cigarette smokers ( n = 22,189) and recent quitters ( n = 776) to examine associations between doses of Tips advertising, measured by gross rating points (GRPs), and intentions to quit smoking in the next 30 days and quit attempts within the past 3 months...
May 1, 2017: Health Education & Behavior: the Official Publication of the Society for Public Health Education
https://www.readbyqxmd.com/read/28492473/acquisition-and-neural-network-prediction-of-3d-deformable-object-shape-using-a-kinect-and-a-force-torque-sensor
#16
Bilal Tawbe, Ana-Maria Cretu
The realistic representation of deformations is still an active area of research, especially for deformable objects whose behavior cannot be simply described in terms of elasticity parameters. This paper proposes a data-driven neural-network-based approach for capturing implicitly and predicting the deformations of an object subject to external forces. Visual data, in the form of 3D point clouds gathered by a Kinect sensor, is collected over an object while forces are exerted by means of the probing tip of a force-torque sensor...
May 11, 2017: Sensors
https://www.readbyqxmd.com/read/28488855/filtration-and-electrochemical-disinfection-performance-of-pan-pani-agnws-cc-composite-nanofiber-membrane
#17
Junjie Wen, Xiaojun Tan, Yongyou Hu, Qian Guo, Xuesen Hong
The removal and inactivation of waterborne pathogens from drinking water are important for human health. Here, a polyacrylonitrile/polyaniline/silver nanowires-carbon fiber cloth (PAN/PANI/AgNWs-CC) composite nanofiber membrane was fabricated using a simple and rapid coelectrospinning process, and an electrical device was applied with the PAN/PANI/AgNWs-CC filter for water electrochemical disinfection. The effects of voltage, flow rate, and microbial concentration on the filtration and electrochemical disinfection performance of the nanocomposite membrane were investigated...
May 17, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28485642/twelve-tips-for-choosing-and-surviving-a-phd-in-medical-education-a-student-perspective
#18
Billy Bryan, Helen R Church
The decision to undertake a PhD in medical education could mark a critical point in defining your future career. Attaining the highest level of degree in such a diverse and rewarding area as medical education may not only provide you with an opportunity to undertake important new research, but could also unlock different job opportunities. As is often the case, such rewards are not gained lightly. There can be real challenges in making the decision to undertake and then to successfully navigate a PhD. The specific subject and process of each doctorate is unique, leaving many prospective and current students uncertain as to what to expect...
May 9, 2017: Medical Teacher
https://www.readbyqxmd.com/read/28483865/behavioural-ecological-and-evolutionary-responses-to-extreme-climatic-events-challenges-and-directions
#19
Martijn van de Pol, Stéphanie Jenouvrier, Johannes H C Cornelissen, Marcel E Visser
More extreme climatic events (ECEs) are among the most prominent consequences of climate change. Despite a long-standing recognition of the importance of ECEs by paleo-ecologists and macro-evolutionary biologists, ECEs have only recently received a strong interest in the wider ecological and evolutionary community. However, as with many rapidly expanding fields, it lacks structure and cohesiveness, which strongly limits scientific progress. Furthermore, due to the descriptive and anecdotal nature of many ECE studies it is still unclear what the most relevant questions and long-term consequences are of ECEs...
June 19, 2017: Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
https://www.readbyqxmd.com/read/28483641/tipping-the-balance-of-rna-stability-by-3-editing-of-the-transcriptome
#20
Christina Z Chung, Lauren E Seidl, Mitchell R Mann, Ilka U Heinemann
BACKGROUND: The regulation of active microRNAs (miRNAs) and maturation of messenger RNAs (mRNAs) that are competent for translation is a crucial point in the control of all cellular processes, with established roles in development and differentiation. Terminal nucleotidyltransferases (TNTases) are potent regulators of RNA metabolism. TNTases promote the addition of single or multiple nucleotides to an RNA transcript that can rapidly alter transcript stability. The well-known polyadenylation promotes transcript stability while the newly discovered but ubiquitious 3'-end polyuridylation marks RNA for degradation...
May 5, 2017: Biochimica et Biophysica Acta
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