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Transverse patterning

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https://www.readbyqxmd.com/read/28092094/comparison-and-evaluation-of-stresses-generated-by-rapid-maxillary-expansion-and-the-implant-supported-rapid-maxillary-expansion-on-the-craniofacial-structures-using-finite-element-method-of-stress-analysis
#1
Varun Jain, Tarulatha R Shyagali, Prabhuraj Kambalyal, Yagnesh Rajpara, Jigar Doshi
BACKGROUND: The study aimed to evaluate and compare the stress distribution and 3-dimensional displacements along the craniofacial sutures in between the Rapid maxillary Expansion (RME) and Implant supported RME (I-RME). METHODS: Finite element model of the skull and the implants were created using ANSYS software. The finite element model thus built composed of 537692 elements and 115694 nodes in RME model & 543078 elements and 117948 nodes with implants model. The forces were applied on the palatal surface of the posterior teeth to cause 5mm of transverse displacement on either side of the palatal halves, making it a total of 10mm...
December 2017: Progress in Orthodontics
https://www.readbyqxmd.com/read/28087519/sympathetic-modulation-of-electrical-activation-in-normal-and-infarcted-myocardium-implications-for-arrhythmogenesis
#2
Olujimi A Ajijola, Robert L Lux, Anadjeet Khahera, OhJin Kwon, Eric Aliotta, Daniel Ennis, Michael C Fishbein, Jeffrey Laurence Ardell, Kalyanam Shivkumar
: Background The influence of cardiac sympathetic innervation on electrical activation in normal and chronically infarcted ventricular myocardium is not understood. Methods and Results Yorkshire pigs with normal hearts (NL, n=12) or anterior myocardial infarction (MI, n=9) underwent high-resolution mapping of the anteroapical left ventricle, at baseline, and during left and right stellate ganglion stimulation (LSGS & RSGS, respectively). Conduction velocity (CV), activation times (AT), & directionality of propagation were measured...
January 13, 2017: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/28073989/patency-of-the-vein-of-labb%C3%A3-after-venous-stenting-of-the-transverse-and-sigmoid-sinuses
#3
Daniel M S Raper, Dale Ding, Ching-Jen Chen, Thomas J Buell, R Webster Crowley, Kenneth C Liu
BACKGROUND: Venous sinus stenting is an emerging treatment for patients with idiopathic intracranial hypertension and evidence of venous stenosis. Stents placed across the transverse and sigmoid sinuses often cover the vein of Labbé (VOL), a major anastomotic vein draining the cerebral hemisphere. The patency of the VOL after stenting and its clinical implications are poorly understood. METHODS: A retrospective analysis was performed of a prospectively collected database of patients undergoing venous sinus stenting...
January 10, 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/28073624/european-college-of-orthodontics-commission-of-affiliation-and-titularisation
#4
Alexis Moreau
: Date of birth: 2/8/1982; sex: male. A. PRETREATMENT RECORDS: 25 years; 7/3/2008. DIAGNOSIS: Very severe Class III malocclusion in adult dentition in hyperdivergent facial pattern; Sagittal dimension: skeletal and dental Class II, severe alveolar retrusion of the mandibular incisors, negative overjet (-11mm); transverse dimension: Class III-related bilateral crossbite with no transverse maxillary deficiency; vertical dimension: incisor overbite, increased height of the lower facial third; Teeth missing prior to treatment: 16-26...
January 7, 2017: International Orthodontics
https://www.readbyqxmd.com/read/28067264/polarization-controlled-broad-color-palette-based-on-an-ultrathin-one-dimensional-resonant-grating-structure
#5
Ishwor Koirala, Vivek Raj Shrestha, Chul-Soon Park, Sang-Shin Lee, Duk-Yong Choi
Highly efficient polarization-tuned structural color filters, which are based on a one- dimensional resonant aluminum grating that is integrated with a silicon nitride waveguide, are proposed and demonstrated to feature a broad color palette. For such a metallic grating structure, transmissive color filtering is only feasible for the incident transverse-magnetic (TM) polarization due to its high reflection regarding the transverse-electric (TE) case; however, polarization-tuned customized colors can be efficiently achieved by optimizing the structural parameters like the duty ratio of the metallic grating...
January 9, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28062939/early-transverse-tubule-development-begins-in-utero-in-the-sheep-heart
#6
Michelle L Munro, Christian Soeller
The ventricular cardiomyocytes of adult mammals contain invaginations of the plasma membrane known as transverse (t)-tubules. These regular structures are essential for the synchronisation of excitation-contraction (EC) coupling throughout the cell, which is a vital process for cardiac function. T-tubules form a close association with the sarcoplasmic reticulum (SR) to form junctions, where several key proteins involved in EC coupling are localised, including the SR calcium release channels-the ryanodine receptors (RyR)...
January 6, 2017: Journal of Muscle Research and Cell Motility
https://www.readbyqxmd.com/read/28059129/dynamics-of-ferrofluidic-flow-in-the-taylor-couette-system-with-a-small-aspect-ratio
#7
Sebastian Altmeyer, Younghae Do, Ying-Cheng Lai
We investigate fundamental nonlinear dynamics of ferrofluidic Taylor-Couette flow - flow confined be-tween two concentric independently rotating cylinders - consider small aspect ratio by solving the ferro-hydrodynamical equations, carrying out systematic bifurcation analysis. Without magnetic field, we find steady flow patterns, previously observed with a simple fluid, such as those containing normal one- or two vortex cells, as well as anomalous one-cell and twin-cell flow states. However, when a symmetry-breaking transverse magnetic field is present, all flow states exhibit stimulated, finite two-fold mode...
January 6, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28053617/characterization-the-response-of-korl-icr-mice-to-loperamide-induced-constipation
#8
Ji Eun Kim, Woo Bin Yun, Ji Eun Sung, Hyun Ah Lee, Jun Young Choi, Yeon Shik Choi, Young Suk Jung, Kil Soo Kim, Dae Youn Hwang
Animal models of constipation induced with drugs and diet have been widely employed to investigate therapeutic effects and the action mechanism of drugs against this disease. ICR mice were selected to produce this disease model through oral administration of loperamide (Lop), even though SD rats are commonly utilized in studies of constipation. To compare the responses of ICR mice obtained from three different sources to constipation inducers, alterations in stool number, histopathological structure, mucin secretion and opioid-receptor downstream signaling pathway were measured in Korl:ICR (Korea FDA source), A:ICR (USA source) and B:ICR (Japan source) injected with low and high concentrations of Lop (LoLop and HiLop)...
December 2016: Laboratory Animal Research
https://www.readbyqxmd.com/read/28048490/su-g-tep2-04-comprehensive-machine-isocenter-evaluation-with-separation-of-gantry-collimator-and-table-variables
#9
S Hancock, C Clements, D Hyer, E Nixon, E Martin, B Wang, S Jani, M Gossman
PURPOSE: To develop and demonstrate application of a method that characterizes deviation of linac x-ray beams from the centroid of the volumetric radiation isocenter as a function of gantry, collimator, and table variables. METHODS: A set of Winston-Lutz ball-bearing images was used to determine the gantry radiation isocenter as the midrange of deviation values resulting from gantry and collimator rotation. Also determined were displacement of table axis from gantry isocenter and recommended table axis adjustment...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28048286/su-g-bra-14-dose-in-a-rigidly-moving-phantom-with-jaw-and-mlc-compensation
#10
E Chao, D Lucas
PURPOSE: To validate dose calculation for a rigidly moving object with jaw motion and MLC shifts to compensate for the motion in a TomoTherapy™ treatment delivery. METHODS: An off-line version of the TomoTherapy dose calculator was extended to perform dose calculations for rigidly moving objects. A variety of motion traces were added to treatment delivery plans, along with corresponding jaw compensation and MLC shift compensation profiles. Jaw compensation profiles were calculated by shifting the jaws such that the center of the treatment beam moved by an amount equal to the motion in the longitudinal direction...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28046813/th-cd-209-07-preliminary-experimental-comparison-of-spot-and-continuous-line-scanning-with-or-without-rescanning-for-gated-proton-therapy
#11
G Fattori, G Klimpki, S Safai, D Weber, A Lomax, S Psoroulas
PURPOSE: We aim to compare the performance of discrete spot- or continuous line scanning combined with rescanning in mitigating residual organ motion during gated proton therapy treatments. METHODS: The Quasar respiratory phantom was used to move a 2D scintillation detector on a linear trajectory with sinusoidal motion pattern (sin(4) ), 20 mm peak-to-peak amplitude and 5 sec period. Its motion was monitored using a customized solution based on optical tracking technology...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28028474/cretaceous-origin-of-dogwoods-an-anatomically-preserved-cornus-cornaceae-fruit-from-the-campanian-of-vancouver-island
#12
Brian A Atkinson, Ruth A Stockey, Gar W Rothwell
BACKGROUND: Cornaceae consists of 58 species, all within the genus Cornus. The Cenozoic record of Cornus is extensive and well documented. Molecular divergence-time studies suggest that crown-group Cornus may have originated by the Late Cretaceous. However, there has been no formal report of Cornus from Cretaceous deposits. Here, we characterize a permineralized fossil fruit assignable to Cornus subg. Cornus from the Upper Cretaceous (Campanian) Shelter Point locality of Vancouver Island, British Columbia, Canada...
2016: PeerJ
https://www.readbyqxmd.com/read/28019684/diaphyseal-femur-fractures-in-osteogenesis-imperfecta-characteristics-and-relationship-with-bisphosphonate-treatment
#13
Pamela Trejo, François Fassier, Francis H Glorieux, Frank Rauch
Several recent case reports have suggested that bisphosphonate treatment in individuals with osteogenesis imperfecta (OI) is causally related to atypical femur fractures. However, it is not known whether atypical femur fractures are actually more frequent in patients who have received bisphosphonates. In the present study, we retrospectively analyzed 166 femur fractures in 119 children with a diagnosis of OI that had not undergone intramedullary rodding procedures. A total of 130 fractures in 90 patients occurred in femurs with pre-existing deformities (age at fracture between 1 month and 19...
December 26, 2016: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
https://www.readbyqxmd.com/read/28018384/allele-mining-and-selective-patterns-of-pi9-gene-in-a-set-of-rice-landraces-from-india
#14
Jahangir Imam, Nimai P Mandal, Mukund Variar, Pratyoosh Shukla
Allelic variants of the broad-spectrum blast resistance gene, Pi9 (nucleotide binding site-leucine-rich repeat region) have been analyzed in Indian rice landraces. They were selected from the list of 338 rice landraces phenotyped in the rice blast nursery at central Rainfed Upland Rice Research Station, Hazaribag. Six of them were further selected on the basis of their resistance and susceptible pattern for virulence analysis and selective pattern study of Pi9 gene. The sequence analysis and phylogenetic study illustrated that such sequences are vastly homologous and clustered into two groups...
2016: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28006790/revision-of-the-australian-union-jack-wolf-spiders-genus-i-tasmanicosa-i-araneae-lycosidae-lycosinae
#15
Volker W Framenau, Barbara C Baehr
The Australian wolf spider (Lycosidae Sundevall, 1833) genus Tasmanicosa Roewer, 1959 with Lycosa tasmanica Hogg, 1905 as type species is revised to include 14 species: T. godeffroyi (L. Koch, 1865), comb. nov. (= Lycosa tasmanica Hogg, 1905, syn. nov.; = Lycosa zualella Strand, 1907, syn. nov.; = Lycosa woodwardi Simon, 1909, syn. nov.); T. fulgor sp. nov.; T. gilberta (Hogg, 1905) comb. nov.; T. harmsi sp. nov.; T. hughjackmani sp. nov.; T. kochorum sp. nov.; T. leuckartii (Thorell, 1870), comb. nov. (= Lycosa molyneuxi Hogg, 1905, syn...
December 23, 2016: Zootaxa
https://www.readbyqxmd.com/read/28004324/ct-characteristics-of-traumatic-sacral-fractures-in-association-with-pelvic-ring-injuries-correlation-using-the-young-burgess-classification-system
#16
Nicholas Beckmann, Chunyan Cai
PURPOSE: The purpose of the study is to determine the incidence of sacral fracture patterns on CT imaging of pelvic trauma patients with correlation with mechanism of injury and pelvic ring injury pattern using the Young-Burgess classification system. MATERIALS AND METHODS: This is a retrospective review of all pelvic CTs with pelvic fractures performed at our level 1 trauma center during a 4-year period from July 2010 to June 2014. RESULTS: Sacral fractures were very common in pelvic trauma patients, being present in 60% of patients presenting to our institution with pelvic fractures...
December 21, 2016: Emergency Radiology
https://www.readbyqxmd.com/read/28001132/geometrical-control-of-pure-spin-current-induced-domain-wall-depinning
#17
Alexander Pfeiffer, Robert Reeve, Michele Voto, Williams Savero Torres, Nils Richter, Laurent Vila, Jean-Philippe Attane, Luis Diaz, Mathias Kläui
We investigate the pure spin-current assisted depinning of magnetic domain walls in half ring based Py/Al lateral spin valve structures. Our optimized geometry incorporating a patterned notch in the detector electrode, directly below the Al spin conduit, provides a tailored pinning potential for a transverse domain wall and allows for a precise control over the magnetization configuration and as a result the domain wall pinning. Due to the patterned notch, we are able to study the depinning field as a function of the applied external field for certain applied current densities and observe a clear asymmetry for the two opposite field directions...
December 21, 2016: Journal of Physics. Condensed Matter: An Institute of Physics Journal
https://www.readbyqxmd.com/read/27994975/a-large-and-unusually-colored-new-snake-species-of-the-genus-tantilla-squamata-colubridae-from-the-peruvian-andes
#18
Claudia Koch, Pablo J Venegas
A new colubrid species of the genus Tantilla from the dry forest of the northern Peruvian Andes is described on the basis of two specimens, which exhibit a conspicuous sexual dimorphism. Tantilla tjiasmantoi sp. nov. represents the third species of the genus in Peru. The new species is easily distinguished from its congeners by the combination of scalation characteristics and the unusual transversely-banded color pattern on the dorsum. A detailed description of the skull morphology of the new species is given based on micro-computed tomography images...
2016: PeerJ
https://www.readbyqxmd.com/read/27975128/-bilateral-eye-injuries-by-external-transversal-force
#19
K Geidel, S Schob, J D Unterlauft, P Wiedemann, P Meier
A 49-year-old female victim of violent crime with an acute bilateral loss of vision was referred to our hospital. The ophthalmological evaluation showed complete subconjunctival hemorrhage of both eyes, bilateral hemophthalmos and hypotonia of the left eye. These raised the suspicion of an occult scleral rupture. We immediately performed exploratory surgery and found a perforating scleral lesion of the left eye and a penetrating scleral lesion of the right eye. Furthermore, a small, cruciform wound was detected on the left temple...
December 14, 2016: Der Ophthalmologe: Zeitschrift der Deutschen Ophthalmologischen Gesellschaft
https://www.readbyqxmd.com/read/27973838/molecular-dynamics-of-a-hydrated-collagen-peptide-insights-into-rotational-motion-and-residence-times-of-single-water-bridges-in-collagen
#20
Monique C Tourell, Konstantin I Momot
Magnetic resonance transverse spin relaxation time constants (T2) of water protons in ordered collagenous tissues are dependent on the orientation of the tissue relative to the static magnetic field. This dependence is commonly referred to as the magic angle (MA) effect and has been attributed to the restricted rotational motion of icelike water bridges in the hydrated triple-helix collagen molecule. Understanding of the molecular mechanism of the MA effect is important for clinical and research applications of magnetic resonance spectroscopy and imaging to tissues, such as articular cartilage, tendons, and ligaments...
December 15, 2016: Journal of Physical Chemistry. B
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