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https://www.readbyqxmd.com/read/28806771/effect-of-knee-alignment-on-the-quadriceps-femoris-muscularity-cross-sectional-comparison-of-trained-versus-untrained-individuals-in-both-sexes
#1
Ryoichi Ema, Taku Wakahara, Kuniaki Hirayama, Yasuo Kawakami
Knee alignment is suggested to be a factor affecting each quadriceps femoris muscle size, and knee alignment such as Q-angle differs between men and women. Also, training can induce inhomogeneous hypertrophy among the quadriceps femoris, thereby leading to different component characteristics of the muscles. If Q-angle is a major determinant of the quadriceps femoris muscularity, it is hypothesized that the sex-related difference in the quadriceps femoris muscularity, if any, is further highlighted in trained individuals, being associated with Q-angle...
2017: PloS One
https://www.readbyqxmd.com/read/28805385/synthesis-of-a-series-of-heavy-lanthanide-iii-monoporphyrinato-complexes-with-tetragonal-symmetry
#2
Anas Santria, Akira Fuyuhiro, Takamitsu Fukuda, Naoto Ishikawa
A series of heavy lanthanide(III) and yttrium(III) monoporphyrinato complexes formulated in [Ln(TPP)(cyclen)]Cl (Ln = Tb, Dy, Ho, Er, Tm, Yb, and Y; TPP = 5,10,15,20-tetraphenylporphyrinato), with cyclen, 1,4,7,10-tetraazacyclododecane, as a capping ligand, have been prepared in mild conditions and studied using single-crystal X-ray diffraction crystallography. The complexes exhibit an electronic absorption band (B(0,0)) in the range of 421-423 nm, showing a bathochromic shift associated with the increase of the ionic radii of the lanthanide, as well as two peaks of Q(1,0) and Q(0,0) bands between 548-586 nm...
August 14, 2017: Inorganic Chemistry
https://www.readbyqxmd.com/read/28800298/impact-of-field-number-and-beam-angle-on-functional-image-guided-lung-cancer-radiotherapy-planning
#3
Bilal A Tahir, Chris M Bragg, Jim M Wild, James A Swinscoe, Sarah E Lawless, Kerry A Hart, Matthew Q Hatton, Rob H Ireland
To investigate the effect of beam angles and field number on functionally-guided intensity modulated radiotherapy (IMRT) normal lung avoidance treatment plans that incorporate hyperpolarised helium-3 magnetic resonance imaging ((3)He MRI) ventilation data. Eight non-small cell lung cancer patients had pre-treatment (3)He MRI that was registered to inspiration breath-hold radiotherapy planning computed tomography. IMRT plans that minimised the volume of total lung receiving  ⩾20 Gy (V20) were compared with plans that minimised (3)He MRI defined functional lung receiving  ⩾20 Gy (fV20)...
August 11, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/28764527/an-eight-channel-doppler-backscattering-system-in-the-experimental-advanced-superconducting-tokamak
#4
J Q Hu, C Zhou, A D Liu, M Y Wang, E J Doyle, W A Peebles, G Wang, X H Zhang, J Zhang, X Feng, J X Ji, H Li, T Lan, J L Xie, W X Ding, W D Liu, C X Yu
Doppler backscattering system can measure the perpendicular velocity and fluctuation amplitude of the density turbulence with intermediate wavenumber. An eight-channel Doppler backscattering system has been installed in the Experimental Advanced Superconducting Tokamak (EAST), which can probe eight different radial locations simultaneously by launching eight fixed frequencies (55, 57.5, 60, 62.5, 67.5, 70, 72.5, 75 GHz) into plasma. The quasi-optical system consists of circular corrugated waveguide transmission, a fixed parabolic mirror, and a rotatable parabolic mirror which are integrated with quasi-optics front-end of the profile reflectometer inside the vacuum vessel...
July 2017: Review of Scientific Instruments
https://www.readbyqxmd.com/read/28759830/forearm-nonunion-caused-by-hyperparathyroidism-with-7-years-follow-up-a-case-report
#5
Mayuko Kinoshita, Kiyohito Naito, Kentaro Aritomi, Yoichi Sugiyama, Nana Nagura, Kenji Goto, Yoshiyuki Iwase, Kazuo Kaneko
INTRODUCTION: We report a patient who developed nonunion of both bones of the forearm associated with hyperparathyroidism (HPT). PRESENTATION OF CASE: The patient was a 71-year-old female who previously fell and hit her left hand on the ground. At 2 years after injury the patient visited our hospital, since she became aware of instability of the left forearm without an inducer due to nonunion of the radioulnar diaphysis. The patient was surgically treated to acquire forearm support...
2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28753336/beam-recoil-polarization-measurement-of-%C3%AF-0-electroproduction-on-the-proton-in-the-region-of-the-roper-resonance
#6
S Štajner, P Achenbach, T Beranek, J Beričič, J C Bernauer, D Bosnar, R Böhm, L Correa, A Denig, M O Distler, A Esser, H Fonvieille, J M Friedrich, I Friščić, S Kegel, Y Kohl, H Merkel, M Mihovilovič, J Müller, U Müller, L Nungesser, J Pochodzalla, B S Schlimme, M Schoth, F Schulz, C Sfienti, S Širca, M Thiel, L Tiator, A Tyukin, A Weber, I Yaron
The helicity-dependent recoil proton polarizations P_{x}^{'} and P_{z}^{'} as well as the helicity-independent component P_{y} have been measured in the p(e[over →],e^{'}p[over →])π^{0} reaction at four-momentum transfer Q^{2}≃0.1  GeV^{2}, center-of-mass proton emission angle θ_{p}^{*}≃90°, and invariant mass W≃1440  MeV. This first precise measurement of double-polarization observables in the energy domain of the Roper resonance P_{11}(1440) by exploiting recoil polarimetry has allowed for the extraction of its scalar electroexcitation amplitude at an unprecedentedly low value of Q^{2}, establishing a powerful instrument for probing the interplay of quark and meson degrees of freedom in the nucleon...
July 14, 2017: Physical Review Letters
https://www.readbyqxmd.com/read/28740983/combining-epr-spectroscopy-and-x-ray-crystallography-to-elucidate-the-structure-and-dynamics-of-conformationally-constrained-spin-labels-in-t4-lysozyme-single-crystals
#7
Philipp Consentius, Ulrich Gohlke, Bernhard Loll, Claudia Alings, Udo Heinemann, Markus C Wahl, Thomas Risse
Electron paramagnetic resonance (EPR) spectroscopy in combination with site-directed spin labeling is used to investigate the structure and dynamics of conformationally constrained spin labels in T4 lysozyme single crystals. Within a single crystal, the oriented ensemble of spin bearing moieties results in a strong angle dependence of the EPR spectra. A quantitative description of the EPR spectra requires the determination of the unit cell orientation with respect to the sample tube and the orientation of the spin bearing moieties within the crystal lattice...
August 9, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28736471/comparison-of-multi-fiber-reproducibility-of-pas-mri-and-q-ball-with-empirical-multiple-b-value-hardi
#8
Vishwesh Nath, Kurt G Schilling, Justin A Blaber, Zhaohua Ding, Adam W Anderson, Bennett A Landman
Crossing fibers are prevalent in human brains and a subject of intense interest for neuroscience. Diffusion tensor imaging (DTI) can resolve tissue orientation but is blind to crossing fibers. Many advanced diffusion-weighted magnetic resolution imaging (MRI) approaches have been presented to extract crossing-fibers from high angular resolution diffusion imaging (HARDI), but the relative sensitivity and specificity of approaches remains unclear. Here, we examine two leading approaches (PAS and q-ball) in the context of a large-scale, single subject reproducibility study...
February 11, 2017: Proceedings of SPIE
https://www.readbyqxmd.com/read/28733615/impact-of-natural-blind-spot-location-on-perimetry
#9
Mengyu Wang, Lucy Q Shen, Michael V Boland, Sarah R Wellik, Carlos Gustavo De Moraes, Jonathan S Myers, Peter J Bex, Tobias Elze
We study the spatial distribution of natural blind spot location (NBSL) and its impact on perimetry. Pattern deviation (PD) values of 11,449 reliable visual fields (VFs) that are defined as clinically unaffected based on summary indices were extracted from 11,449 glaucoma patients. We modeled NBSL distribution using a two-dimensional non-linear regression approach and correlated NBSL with spherical equivalent (SE). Additionally, we compared PD values of groups with longer and shorter distances than median, and larger and smaller angles than median between NBSL and fixation...
July 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28731753/new-measurements-of-the-beam-normal-spin-asymmetries-at-large-backward-angles-with-hydrogen-and-deuterium-targets
#10
D Balaguer Ríos, K Aulenbacher, S Baunack, J Diefenbach, B Gläser, D von Harrach, Y Imai, E-M Kabuß, R Kothe, J H Lee, H Merkel, M C Mora Espí, U Müller, E Schilling, C Weinrich, L Capozza, F E Maas, J Arvieux, M A El-Yakoubi, R Frascaria, R Kunne, M Morlet, S Ong, J van de Wiele, S Kowalski, Y Prok
New measurements of the beam normal single spin asymmetry in the electron elastic and quasielastic scattering on the proton and deuteron, respectively, at large backward angles and at ⟨Q^{2}⟩=0.22  (GeV/c)^{2} and ⟨Q^{2}⟩=0.35  ( GeV/c)^{2} are reported. The experimentally observed asymmetries are compared with the theoretical calculation of Pasquini and Vanderhaeghen [Phys. Rev. C 70, 045206 (2004).PRVCAN0556-281310.1103/PhysRevC.70.045206]. The agreement of the measurements with the theoretical calculations shows a dominance of the inelastic intermediate excited states of the nucleon, πN and the Δ resonance...
July 7, 2017: Physical Review Letters
https://www.readbyqxmd.com/read/28717162/ultra-low-threshold-polariton-lasing-at-room-temperature-in-a-gan-membrane-microcavity-with-a-zero-dimensional-trap
#11
R Jayaprakash, F G Kalaitzakis, G Christmann, K Tsagaraki, M Hocevar, B Gayral, E Monroy, N T Pelekanos
Polariton lasers are coherent light sources based on the condensation of exciton-polaritons in semiconductor microcavities, which occurs either in the kinetic or thermodynamic (Bose-Einstein) regime. Besides their fundamental interest, polariton lasers have the potential of extremely low operating thresholds. Here, we demonstrate ultra-low threshold polariton lasing at room temperature, using an all-dielectric, GaN membrane-based microcavity, with a spontaneously-formed zero-dimensional trap. The microcavity is fabricated using an innovative method, which involves photo-electrochemical etching of an InGaN sacrificial layer and allows for the incorporation of optimally-grown GaN active quantum wells inside a cavity with atomically-smooth surfaces...
July 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28684147/knotless-transosseous-equivalent-rotator-cuff-repair-improves-biomechanical-self-reinforcement-without-diminishing-footprint-contact-compared-with-medial-knotted-repair
#12
Maxwell C Park, Alexander B Peterson, Michelle H McGarry, Chong J Park, Thay Q Lee
PURPOSE: To assess the effect of medial-row knots on self-reinforcement and footprint contact characteristics for transosseous-equivalent repair compared with the same construct without knots. METHODS: In 8 fresh-frozen human shoulders, transosseous-equivalent repairs with and without medial-row mattress knots were performed in each specimen. A pressure sensor was fixed at the tendon-footprint interface for all repairs. Parameters measured included footprint contact area, force, and pressure...
August 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28669429/hybrid-photoacoustic-ultrasound-tomograph-for-real-time-finger-imaging
#13
Milan Oeri, Wolfgang Bost, Nicolas Sénégond, Steffen Tretbar, Marc Fournelle
We report a target-enclosing, hybrid tomograph with a total of 768 elements based on capacitive micromachined ultrasound transducer technology and providing fast, high-resolution 2-D/3-D photoacoustic and ultrasound tomography tailored to finger imaging. A freely programmable ultrasound beamforming platform sampling data at 80 MHz was developed to realize plane wave transmission under multiple angles. A multiplexing unit enables the connection and control of a large number of elements. Fast image reconstruction is provided by GPU processing...
June 29, 2017: Ultrasound in Medicine & Biology
https://www.readbyqxmd.com/read/28656039/an-in-situ-usaxs-saxs-waxs-study-of-precipitate-size-distribution-evolution-in-a-model-ni-based-alloy
#14
Ross N Andrews, Joseph Serio, Govindarajan Muralidharan, Jan Ilavsky
Intermetallic γ' precipitates typically strengthen nickel-based superalloys. The shape, size and spatial distribution of strengthening precipitates critically influence alloy strength, while their temporal evolution characteristics determine the high-temperature alloy stability. Combined ultra-small-, small- and wide-angle X-ray scattering (USAXS-SAXS-WAXS) analysis can be used to evaluate the temporal evolution of an alloy's precipitate size distribution (PSD) and phase structure during in situ heat treatment...
June 1, 2017: Journal of Applied Crystallography
https://www.readbyqxmd.com/read/28655085/-effects-of-robot-assisted-minimally-invasive-transforaminal-lumbar-interbody-fusion-and-traditional-open-surgery-in-the-treatment-of-lumbar-spondylolisthesis
#15
G Y Cui, W Tian, D He, Y G Xing, B Liu, Q Yuan, Y Q Wang, Y Q Sun
Objective: To compare the clinical effects of robot-assisted minimally invasive transforaminal lumbar interbody fusion (TLIF) and traditional open TLIF in the treatment of lumbar spondylolisthesis. Methods: A total of 41 patients with lumbar spondylolisthesis accepted surgical treatment in Department of Spinal Surgery of Beijing Jishuitan Hospital From July 2015 to April 2016 were retrospectively analyzed. There were 16 cases accepted robot-assisted minimally invasive TLIF and 25 accepted traditional open TLIF...
July 1, 2017: Zhonghua Wai Ke za Zhi [Chinese Journal of Surgery]
https://www.readbyqxmd.com/read/28653744/estimates-of-genetic-parameters-and-genotypic-values-prediction-in-maize-landrace-populations-by-reml-blup-procedure
#16
D Baretta, M Nardino, I R Carvalho, A J de Pelegrin, M Ferrari, V J Szareski, W S Barros, V Q de Souza, A C de Oliveira, L C da Maia
The REML/BLUP statistics are analyses that can be used as selective criteria in the routine of maize breeding programs. The present study aims to determine the genetic potential in crosses of landrace populations applying the REML/BLUP methodology, and to identify populations for the synthesis of new populations and intrapopulation selection for family farming systems, as well as genetic constitutions for use in maize breeding programs. Nine top cross hybrids obtained in the 2012/2013 harvest were evaluated along with their testator, the landraces used as parents, and four commercial hybrids, in a randomized block design, with information taken from the average of each plot...
June 20, 2017: Genetics and Molecular Research: GMR
https://www.readbyqxmd.com/read/28652829/patellofemoral-pain-in-athletes
#17
REVIEW
Wolf Petersen, Ingo Rembitzki, Christian Liebau
Patellofemoral pain (PFP) is a frequent cause of anterior knee pain in athletes, which affects patients with and without structural patellofemoral joint (PFJ) damage. Most younger patients do not have any structural changes to the PFJ, such as an increased Q angle and a cartilage damage. This clinical entity is known as patellofemoral pain syndrome (PFPS). Older patients usually present with signs of patellofemoral osteoarthritis (PFOA). A key factor in PFPS development is dynamic valgus of the lower extremity, which leads to lateral patellar maltracking...
2017: Open Access Journal of Sports Medicine
https://www.readbyqxmd.com/read/28651052/inhomogeneity-in-ethylammonium-nitrate-acetonitrile-binary-mixtures-the-highest-low-q-excess-reported-to-date
#18
Alessandro Mariani, Ruggero Caminiti, Fabio Ramondo, Giovanna Salvitti, Francesca Mocci, Lorenzo Gontrani
The binary mixtures of the ionic liquid ethylammonium nitrate with acetonitrile have been studied by means of wide- and small-angle X-ray scattering and via two different computational methods, namely, classical molecular dynamics and DFT. The recently debated odd feature in the extreme low q region of some ionic liquid-based binary mixtures is linked to density fluctuations within the system. We show how the "low q excess" is due to some nanoscopic objects which are formed at certain compositions. These structures have different density with respect to the surrounding, thus generating the feature observed...
July 17, 2017: Journal of Physical Chemistry Letters
https://www.readbyqxmd.com/read/28650754/structural-changes-in-the-lower-extremities-in-boys-aged-7-to-12-years-who-engage-in-moderate-physical-activityan-observational-longitudinal-study
#19
Gabriel Gijon-Nogueron, Salvador Diaz-Miguel, Eva Lopezosa-Reca, Jose Antonio Cervera-Marin
BACKGROUND: Physical activity in children may provide health benefits. We sought to consider the practice of soccer as a possible major factor in the development of the lower limb. The study is based on 3-year data for a group of children who practice this sport. METHODS: For 3 years we monitored 53 children who practiced soccer 3 times a week and had engaged in 2 years of continuous sports activity. Their mean ± SD age was 8.49 ± 2.01 years in the first year...
May 2017: Journal of the American Podiatric Medical Association
https://www.readbyqxmd.com/read/28648068/redox-activity-of-oxo-bridged-iridium-dimers-in-an-n-o-donor-environment-characterization-of-remarkably-stable-ir-iv-v-complexes
#20
Shashi Bhushan Sinha, Dimitar Y Shopov, Liam S Sharninghausen, Christopher J Stein, Brandon Q Mercado, David Balcells, Thomas Bondo Pedersen, Markus Reiher, Gary W Brudvig, Robert H Crabtree
Chemical and electrochemical oxidation or reduction of our recently reported Ir(IV,IV) mono-μ-oxo dimers results in the formation of fully characterized Ir(IV,V) and Ir(III,III) complexes. The Ir(IV,V) dimers are unprecedented and exhibit remarkable stability under ambient conditions. This stability and modest reduction potential of 0.99 V vs NHE is in part attributed to complete charge delocalization across both Ir centers. Trends in crystallographic bond lengths and angles shed light on the structural changes accompanying oxidation and reduction...
July 5, 2017: Journal of the American Chemical Society
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