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Transverse patterning

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https://www.readbyqxmd.com/read/27920603/a-new-genus-and-species-of-tettigarctidae-from-the-mesozoic-of-northeastern-china-insecta-hemiptera-cicadoidea
#1
Yan Zheng, Jun Chen, Xiaoli Wang
A new genus Maculaprosbole of Tettigarctidae with a new species Maculaprosbole zhengi is described based on a complete fossil forewing from the Mesozoic of northeastern China. Due to its broad costal area and clavus, Maculaprosbole zhengigen. et sp. n. can be attributed to the subfamily Cicadoprosbolinae. This genus is similar to the genera Sanmai and Hirtaprosbole in coloration pattern and forewing venation, respectively. However, it differs from Hirtaprosbole in crossvein r-m absent and apical CuA section strongly curved, running along the nodal line for a distance, and Sanmai in transverse coloration mainly focusing on the postnodal area...
2016: ZooKeys
https://www.readbyqxmd.com/read/27917112/reproducibility-and-reliability-of-quantitative-and-weighted-t1-and-t2-%C3%A2-mapping-for-myelin-based-cortical-parcellation-at-7-tesla
#2
Roy A M Haast, Dimo Ivanov, Elia Formisano, Kâmil Uludaǧ
Different magnetic resonance (MR) parameters, such as R1 (=1/T1) or T2(∗), have been used to visualize non-invasively the myelin distribution across the cortical sheet. Myelin contrast is consistently enhanced in the primary sensory and some higher order cortical areas (such as MT or the cingulate cortex), which renders it suitable for subject-specific anatomical cortical parcellation. However, no systematic comparison has been performed between the previously proposed MR parameters, i.e., the longitudinal and transversal relaxation values (or their ratios), for myelin mapping at 7 Tesla...
2016: Frontiers in Neuroanatomy
https://www.readbyqxmd.com/read/27913838/isolated-transverse-process-fractures-insignificant-injury-or-marker-of-complex-injury-pattern
#3
G Lombardo, P Petrone, K Prabhakaran, C P Marini
INTRODUCTION: This study investigates the incidence of isolated transverse process fractures (ITPFx) amongst vertebral fractures in trauma patients, and specific-associated injury patterns present in patients with ITPFx. MATERIALS AND METHODS: A retrospective, 4-year review of our Level 1 Trauma Center registry was performed. Patients with blunt spinal column fractures were identified. Data collected included patient demographics, Injury Severity Score (ISS), type of imaging obtained, and concomitant injuries, including rib and pelvic fractures, liver, spleen, and kidney injury (SOI)...
December 2, 2016: European Journal of Trauma and Emergency Surgery: Official Publication of the European Trauma Society
https://www.readbyqxmd.com/read/27911812/cytoskeleton-dynamics-control-the-first-asymmetric-cell-division-in-arabidopsis-zygote
#4
Yusuke Kimata, Takumi Higaki, Tomokazu Kawashima, Daisuke Kurihara, Yoshikatsu Sato, Tomomi Yamada, Seiichiro Hasezawa, Frederic Berger, Tetsuya Higashiyama, Minako Ueda
The asymmetric cell division of the zygote is the initial and crucial developmental step in most multicellular organisms. In flowering plants, whether zygote polarity is inherited from the preexisting organization in the egg cell or reestablished after fertilization has remained elusive. How dynamically the intracellular organization is generated during zygote polarization is also unknown. Here, we used a live-cell imaging system with Arabidopsis zygotes to visualize the dynamics of the major elements of the cytoskeleton, microtubules (MTs), and actin filaments (F-actins), during the entire process of zygote polarization...
November 22, 2016: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/27907050/when-is-the-brain-dead-living-like-electrophysiological-responses-and-photon-emissions-from-applications-of-neurotransmitters-in-fixed-post-mortem-human-brains
#5
Michael A Persinger, Nicolas Rouleau, Nirosha J Murugan, Lucas W E Tessaro, Justin N Costa
The structure of the post-mortem human brain can be preserved by immersing the organ within a fixative solution. Once the brain is perfused, cellular and histological features are maintained over extended periods of time. However, functions of the human brain are not assumed to be preserved beyond death and subsequent chemical fixation. Here we present a series of experiments which, together, refute this assumption. Instead, we suggest that chemical preservation of brain structure results in some retained functional capacity...
2016: PloS One
https://www.readbyqxmd.com/read/27906341/intra-half-cycle-interference-of-low-energy-photoelectron-in-strong-midinfrared-laser-fields
#6
Hui Xie, Min Li, Yang Li, Yueming Zhou, Peixiang Lu
Using semiclassical models with implementing interference effects, we study the low-energy photoelectron intra-half-cycle interferences among nonscattering trajectories and multiple forward scattering trajectories of atoms ionized by a strong mid-infrared laser field. Tracing back to the initial tunneling coordinates, we find that up to three kinds of forward scattering trajectories have substantial contributions to the low-energy photoelectrons. Those multiple forward scattering trajectories depend sensitively on the initial transverse momentum at the tunnel exit and they lead to sign reversal of the transverse momentum of the electrons...
November 28, 2016: Optics Express
https://www.readbyqxmd.com/read/27906337/accelerating-incoherent-hollow-beams-beyond-the-paraxial-regime
#7
Yanlong Yang, Shaohui Yan, Xianghua Yu, Manman Li, Baoli Yao
We propose a non-paraxial hollow accelerating beam, which is formed by incoherently superposing two well-designed coherent accelerating beams. Very interestingly, this incoherent superposition does not hamper the acceleration dynamics pertaining to the coherent ones, but results in a hollow intensity pattern in the cross section transverse to the circular accelerating trajectory. By a simple optimization, this hollow cross section pattern can be effectively extended to an angle close to 90°. The magnitude and the phase of the angular spectrum of the beam are given followed by a suggested scheme to generate the beam in practice...
November 28, 2016: Optics Express
https://www.readbyqxmd.com/read/27897144/classification-of-dna-nucleotides-with-transverse-tunneling-currents
#8
Jonas Nyvold Pedersen, Paul Boynton, Massimiliano Di Ventra, Antti-Pekka Jauho, Henrik Flyvbjerg
It has been theoretically suggested and experimentally demonstrated that fast and low-cost sequencing of DNA, RNA, and peptide molecules might be achieved by passing such molecules between electrodes embedded in a nanochannel. The experimental realization of this scheme faces major challenges, however. In realistic liquid environments, typical currents in tunneling devices are of the order of picoamps. This corresponds to only six electrons per microsecond, and this number affects the integration time required to do current measurements in real experiments...
January 6, 2017: Nanotechnology
https://www.readbyqxmd.com/read/27890533/full-thickness-tears-of-the-supraspinatus-tendon-a-three-dimensional-finite-element-analysis
#9
C Quental, J Folgado, J Monteiro, M Sarmento
Knowledge regarding the likelihood of propagation of supraspinatus tears is important to allow an early identification of patients for whom a conservative treatment is more likely to fail, and consequently, to improve their clinical outcome. The aim of this study was to investigate the potential for propagation of posterior, central, and anterior full-thickness tears of different sizes using the finite element method. A three-dimensional finite element model of the supraspinatus tendon was generated from the Visible Human Project data...
November 16, 2016: Journal of Biomechanics
https://www.readbyqxmd.com/read/27872578/morphology-and-morphogenesis-of-a-new-oxytrichid-ciliate-notohymena-limus-n-sp-ciliophora-oxytrichidae-from-delhi-india
#10
Ilams Naqvi, Renu Gupta, Seema Makhija, Ravi Toteja, Jeeva S Abraham, S Sripoorna, Hamed A El-Serehy, Fahad A Al-Misned
The morphology and morphogenesis of a new oxytrichid ciliate, Notohymena limus n. sp. were studied in vivo and after protargol impregnation. The new ciliate was isolated from the sewage sludge at Delhi Jal Board Sewage Treatment Plant located at Rithala, Delhi, India, using the non-flooded Petri dish method. N. limus n. sp. is characterized as follows: flexible dorsoventrally flattened ellipsoidal body; Notohymena-pattern undulating membranes; adoral zone of membranelles (AZM) occupied about 39% of the body length, and consists of around 26 membranelles; large and deep buccal cavity; colorless subpellicular granules present in groups and arranged around the bases of dorsal bristles; 4 macronuclear nodules; 2 micronuclei; 18 fronto-ventral-transverse (FVT) cirri in typical Oxytricha-pattern; 6 dorsal rows of bristles; 3 caudal cirri; about 16 right and 15 left marginal cirri; N...
November 2016: Saudi Journal of Biological Sciences
https://www.readbyqxmd.com/read/27871017/predicting-postoperative-gait-in-cerebral-palsy
#11
Omar A Galarraga C, Vincent Vigneron, Bernadette Dorizzi, Néjib Khouri, Eric Desailly
In this work, postoperative lower limb kinematics are predicted with respect to preoperative kinematics, physical examination and surgery data. Data of 115 children with cerebral palsy that have undergone single-event multilevel surgery were considered. Preoperative data dimension was reduced utilizing principal component analysis. Then, multiple linear regressions with 80% confidence intervals were performed between postoperative kinematics and bilateral preoperative kinematics, 36 physical examination variables and combinations of 9 different surgical procedures...
November 9, 2016: Gait & Posture
https://www.readbyqxmd.com/read/27870351/review-of-in-vivo-bone-strain-studies-and-finite-element-models-of-the-zygomatic-complex-in-humans-and-nonhuman-primates-implications-for-clinical-research-and-practice
#12
Felippe Bevilacqua Prado, Alexandre Rodrigues Freire, Ana Cláudia Rossi, Justin A Ledogar, Amanda L Smith, Paul C Dechow, David S Strait, Tilman Voigt, Callum F Ross
The craniofacial skeleton is often described in the clinical literature as being comprised of vertical bony pillars, which transmit forces from the toothrow to the neurocranium as axial compressive stresses, reinforced transversely by buttresses. Here, we review the literature on bony microarchitecture, in vivo bone strain, and finite-element modeling of the facial skeleton of humans and nonhuman primates to address questions regarding the structural and functional existence of facial pillars and buttresses...
December 2016: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
https://www.readbyqxmd.com/read/27867705/3d-differential-phase-contrast-microscopy
#13
Michael Chen, Lei Tian, Laura Waller
We demonstrate 3D phase and absorption recovery from partially coherent intensity images captured with a programmable LED array source. Images are captured through-focus with four different illumination patterns. Using first Born and weak object approximations (WOA), a linear 3D differential phase contrast (DPC) model is derived. The partially coherent transfer functions relate the sample's complex refractive index distribution to intensity measurements at varying defocus. Volumetric reconstruction is achieved by a global FFT-based method, without an intermediate 2D phase retrieval step...
October 1, 2016: Biomedical Optics Express
https://www.readbyqxmd.com/read/27866699/recording-the-trajectory-of-mouth-opening-and-closing-for-the-fabrication-of-an-occlusal-splint
#14
Jong-Eun Kim, Joo Hyun Kwon, Jee-Hwan Kim, June-Sung Shim
Various attempts have been made to transfer the transverse hinge axis and mandibular movement pattern to the mechanical articulator and to fabricate dental prostheses with the fewest errors. However, the occlusal adjustment of a dental prosthesis is always necessary to ensure a precise intraoral fit even when the facebow transfer technique is used in the cast mounting procedure. This is because the true hinge axis is not obtained when the facebow is applied to a patient who exhibits a variable mandible movement pattern rather than a single rotational axis...
November 17, 2016: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/27865944/misoprostol-exposure-during-the-first-trimester-of-pregnancy-is-the-malformation-risk-varying-depending-on-the-indication
#15
Marine Auffret, Nathalie Bernard-Phalippon, Joëlle Dekemp, Patrick Carlier, Marie Gervoise Boyer, Thierry Vial, Sophie Gautier
OBJECTIVE: To report the prospective follow-up of pregnancies exposed to misoprostol during the first trimester and analyse the teratogenic risk depending on the indication for use. STUDY DESIGN: Prospective observational study of 265 women exposed to misoprostol during the first 12 weeks of pregnancy and followed until the delivery. Women were included if they or their physician had contacted a French pharmacovigilance centre before 22 weeks of gestation (WG) to obtain information on the risk of misoprostol exposure, and if there had been misoprostol exposure before 13 WG...
November 11, 2016: European Journal of Obstetrics, Gynecology, and Reproductive Biology
https://www.readbyqxmd.com/read/27863740/understanding-the-fluid-mechanics-behind-transverse-wall-shear-stress
#16
Yumnah Mohamied, Spencer J Sherwin, Peter D Weinberg
The patchy distribution of atherosclerosis within arteries is widely attributed to local variation in haemodynamic wall shear stress (WSS). A recently-introduced metric, the transverse wall shear stress (transWSS), which is the average over the cardiac cycle of WSS components perpendicular to the temporal mean WSS vector, correlates particularly well with the pattern of lesions around aortic branch ostia. Here we use numerical methods to investigate the nature of the arterial flows captured by transWSS and the sensitivity of transWSS to inflow waveform and aortic geometry...
November 11, 2016: Journal of Biomechanics
https://www.readbyqxmd.com/read/27857349/characteristics-of-strain-sensitive-photonic-crystal-cavities-in-a-flexible-substrate
#17
You-Shin No, Jae-Hyuck Choi, Kyoung-Ho Kim, Hong-Gyu Park
High-index semiconductor photonic crystal (PhC) cavities in a flexible substrate support strong and tunable optical resonances that can be used for highly sensitive and spatially localized detection of mechanical deformations in physical systems. Here, we report theoretical studies and fundamental understandings of resonant behavior of an optical mode excited in strain-sensitive rod-type PhC cavities consisting of high-index dielectric nanorods embedded in a low-index flexible polymer substrate. Using the three-dimensional finite-difference time-domain simulation method, we calculated two-dimensional transverse-electric-like photonic band diagrams and the three-dimensional dispersion surfaces near the first Γ-point band edge of unidirectionally strained PhCs...
November 14, 2016: Optics Express
https://www.readbyqxmd.com/read/27843378/combined-morphological-and-molecular-data-unveils-relationships-of-pseudobranchiomma-sabellidae-annelida-and-reveals-higher-diversity-of-this-intriguing-group-of-fan-worms-in-australia-including-potentially-introduced-species
#18
María Capa, Anna Murray
Pseudobranchiomma (Sabellidae, Annelida) is a small and heterogeneous group of fan worms found in shallow marine environments and is generally associated with hard substrates. The delineation and composition of this genus is problematic since it has been defined only by plesiomorphic characters that are widely distributed among other sabellids. In this study we have combined morphological and molecular (mitochondrial and nuclear DNA sequences) data to evaluate species diversity in Australia and assess the phylogenetic relationships of these and other related sabellids...
2016: ZooKeys
https://www.readbyqxmd.com/read/27834412/effect-of-sonic-application-of-universal-adhesive-systems-on-bond-strength-of-fiber-posts-to-root-canal
#19
Driellen C Zarpellon, Anna L Szesz, Alessandro D Loguercio, Cesar A G Arrais
PURPOSE: This study evaluated the push-out bond strength (BS) of fiber posts in root canals and the nanoleakage (NL) pattern at the bonding interface when universal adhesives were applied in etch-and-rinse mode to root dentin using an oscillating sonic device. MATERIALS AND METHODS: Fifty-four roots of human premolars were endodontically prepared and divided into 6 experimental groups according to the main factors: adhesive system/resin cement (Ambar Universal/AllCem, Scotchbond Universal/RelyX ARC, Prime&Bond Elect/Enforce) and application mode (vigorous manual or sonic)...
November 10, 2016: Journal of Adhesive Dentistry
https://www.readbyqxmd.com/read/27833644/comparison-of-neuromuscular-development-in-two-dinophilid-species-annelida-suggests-progenetic-origin-of-dinophilus-gyrociliatus
#20
Alexandra Kerbl, Elizaveta G Fofanova, Tatiana D Mayorova, Elena E Voronezhskaya, Katrine Worsaae
BACKGROUND: Several independent meiofaunal lineages are suggested to have originated through progenesis, however, morphological support for this heterochronous process is still lacking. Progenesis is defined as an arrest of somatic development (synchronously in various organ systems) due to early maturation, resulting in adults resembling larvae or juveniles of the ancestors. Accordingly, we established a detailed neuromuscular developmental atlas of two closely related Dinophilidae using immunohistochemistry and CLSM...
2016: Frontiers in Zoology
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