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Transverse patterning

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https://www.readbyqxmd.com/read/28936075/headache-patterns-in-cerebral-venous-sinus-thrombosis
#1
Ragasudha Botta, Sheshagiri Donirpathi, Ravi Yadav, Girish B Kulkarni, M Veerendra Kumar, Dindigur Nagaraja
OBJECTIVES: The objective of this study was to assess the clinical characteristics, patterns, and factors associated with headache in patients with cerebral venous sinus thrombosis (CVT). METHODS: In this prospective cohort study, we recruited conscious CVT patients who were able to give reliable history after consent. Institutional ethics approval was obtained. The diagnosis of CVT was based on the clinical and imaging parameters. Data regarding headache characteristic, severity (visual analog scale [VAS]), imaging findings and outcome was recorded...
August 2017: Journal of Neurosciences in Rural Practice
https://www.readbyqxmd.com/read/28934196/spatiotemporal-network-coding-of-physiological-mossy-fiber-inputs-by-the-cerebellar-granular-layer
#2
Shyam Kumar Sudhakar, Sungho Hong, Ivan Raikov, Rodrigo Publio, Claus Lang, Thomas Close, Daqing Guo, Mario Negrello, Erik De Schutter
The granular layer, which mainly consists of granule and Golgi cells, is the first stage of the cerebellar cortex and processes spatiotemporal information transmitted by mossy fiber inputs with a wide variety of firing patterns. To study its dynamics at multiple time scales in response to inputs approximating real spatiotemporal patterns, we constructed a large-scale 3D network model of the granular layer. Patterned mossy fiber activity induces rhythmic Golgi cell activity that is synchronized by shared parallel fiber input and by gap junctions...
September 21, 2017: PLoS Computational Biology
https://www.readbyqxmd.com/read/28930096/simulation-study-of-light-transport-in-laser-processed-lyso-ce-detectors-with-single-side-readout
#3
Lisa Blackberg, Georges El Fakhri, Hamid Sabet
A tightly focused pulsed laser beam can locally modify the crystal structure inside the bulk of a scintillator. The result is incorporation of so-called optical barriers with a refractive index different from that of the crystal bulk, that can be used to redirect the scintillation light and control the light spread in the detector. We here systematically study the scintillation light transport in detectors fabricated using the Laser Induced Optical Barrier technique, and objectively compare their potential performance characteristics with those of the two mainstream detector types: monolithic and mechanically pixelated arrays...
September 20, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/28920545/median-nerve-movement-in-the-carpal-tunnel-before-and-after-carpal-tunnel-release-using-transverse-ultrasound
#4
Mitsuhiko Nanno, Norie Kodera, Yuji Tomori, Yusuke Hagiwara, Shinro Takai
PURPOSE: We aimed to compare the movement of the median nerve within the carpal tunnel during wrist and finger motions between before and after carpal tunnel release (CTR) using transverse ultrasound in carpal tunnel syndrome (CTS) patients and to evaluate the biomechanical efficacy of CTR for CTS. METHODS: Twenty-four patients with CTS were examined by transverse ultrasound. The location of the median nerve within the carpal tunnel was examined quantitatively as a coordinate at varied wrist positions with finger extension and flexion, respectively, before and after CTR...
September 2017: Journal of Orthopaedic Surgery
https://www.readbyqxmd.com/read/28916811/an-enu-induced-splice-site-mutation-of-mouse-col1a1-causing-recessive-osteogenesis-imperfecta-and-revealing-a-novel-splicing-rescue
#5
Koichi Tabeta, Xin Du, Kei Arimatsu, Mai Yokoji, Naoki Takahashi, Norio Amizuka, Tomoka Hasegawa, Karine Crozat, Tomoki Maekawa, Sayuri Miyauchi, Yumi Matsuda, Takako Ida, Masaru Kaku, Kasper Hoebe, Kinji Ohno, Hiromasa Yoshie, Kazuhisa Yamazaki, Eva Marie Y Moresco, Bruce Beutler
GU-AG consensus sequences are used for intron recognition in the majority of cases of pre-mRNA splicing in eukaryotes. Mutations at splice junctions often cause exon skipping, short deletions, or insertions in the mature mRNA, underlying one common molecular mechanism of genetic diseases. Using N-ethyl-N-nitrosourea, a novel recessive mutation named seal was produced, associated with fragile bones and susceptibility to fractures (spine and limbs). A single nucleotide transversion (T → A) at the second position of intron 36 of the Col1a1 gene, encoding the type I collagen, α1 chain, was responsible for the phenotype...
September 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28913647/structure-of-the-style-and-pollen-tube-pathway-in-the-ziziphoid-and-rhamnoid-clades-of-rhamnaceae
#6
Marina M Gotelli, Beatriz G Galati, Gabriela Zarlavsky, Diego Medan
The ultrastructure of the style and pollen tube pathway before, during and after anthesis were studied in 13 species belonging to the tribes Pomaderreae, Paliureae, Colletieae and Gouanieae (Ziziphoid clade) and Rhamneae (Rhamnoid clade) using light microscopy and transmission electron microscopy. The aim of this study is to provide new morphological characters useful for phylogenetic analysis at suprageneric level in Rhamnaceae. The patterns of pollen tube growth and the ultrastructural changes undergone by cells of the style were also described...
September 14, 2017: Protoplasma
https://www.readbyqxmd.com/read/28913295/management-of-le-fort-i-fracture
#7
REVIEW
Hak Su Kim, Seong Eun Kim, Hyun Tae Lee
Among the classification of maxillary fracture, the Le Fort classification is the best-known categorization. Le Fort (1901) completed experiments that determined the maxilla areas of structural weakness which he designated as the "lines of weakness". According to these results, there are three basic fracture line patterns (transverse, pyramidal and craniofacial disjunction). A transverse fracture is a Le Fort I fracture that is above the level of the apices of the maxillary teeth section, including the entire alveolar process of the maxilla, vault of the palate and inferior ends of the pterygoid processes in a single block from the upper craniofacial skeleton...
March 2017: Arch Craniofac Surg
https://www.readbyqxmd.com/read/28905003/an-immediate-effect-of-pnf-specific-mobilization-on-the-angle-of-trunk-rotation-and-the-trunk-pelvis-hip-angle-range-of-motion-in-adolescent-girls-with-double-idiopathic-scoliosis-a-pilot-study
#8
A Stępień, K Fabian, K Graff, M Podgurniak, A Wit
BACKGROUND: Impairment of spine rotation is a key concept in several theories explaining the pathogenesis and progression of scoliosis. In previous studies, a more limited range of motion in scoliotic girls compared to their non-scoliotic peers was noted. The Trunk-Pelvis-Hip Angle measurement is a test used to assess the range of motion in the trunk-pelvis-hip complex in the transverse plane. The aim of this study was to assess an immediate effect of Proprioceptive Neuromuscular Facilitation specific mobilization (mPNF) on the angle of trunk rotation and Trunk-Pelvis-Hip Angle range of motion in adolescent girls with double scoliosis...
2017: Scoliosis and Spinal Disorders
https://www.readbyqxmd.com/read/28902931/binge-drinking-a-pattern-associated-with-a-risk-of-problems-of-alcohol-use-among-university-students
#9
André Bedendo, André Luiz Monezi Andrade, Emérita Sátiro Opaleye, Ana Regina Noto
Objective: to evaluate problems associated with alcohol use among university students who reported binge drinking in comparison to students who consumed alcohol without binging. Method: a cross-sectional study among university students (N=2,408) who accessed the website about alcohol use. Logistic and linear regression models were included in the statistical analyzes. Results: alcohol use in the last three months was reported by 89.2% of university students; 51...
September 12, 2017: Revista Latino-americana de Enfermagem
https://www.readbyqxmd.com/read/28894021/microtubule-array-patterns-have-a-common-underlying-architecture-in-arabidopsis-hypocotyl-cells
#10
Andrew Elliott, Sidney L Shaw
Microtubules at the plant cell cortex influence cell shape by patterning the deposition of cell wall materials. The elongated cells of the hypocotyl create a variety of microtubule array patterns with differing degrees of polymer co-alignment and orientation to the cell's growth axis. To gain insight into the mechanisms driving array organization, we investigated the underlying microtubule array architecture in light-grown epidermal cells with explicit reference to array pattern. We discovered that all non-transverse patterns share a common underlying array architecture, having a core unimodal peak of co-aligned microtubules in a split bipolarized arrangement...
September 11, 2017: Plant Physiology
https://www.readbyqxmd.com/read/28890162/intermediate-filament-structure-in-fully-differentiated-oxidised-trichocyte-keratin
#11
R D Bruce Fraser, David A D Parry
For the past 50years there has been considerable debate over the sub-structure of the fully differentiated (oxidised) trichocyte keratin intermediate filament. Depending on the staining and preparative procedures employed, IF observed in transverse section in the transmission electron microscope have varied in appearance between that of a "ring" and a "ring-core" structure, corresponding to the so-called (8+0) and (7+1) protofilament arrangements. In a new analysis of the fine structure of the 1nm equatorial region of the X-ray diffraction pattern of quill we show that the observed pattern is consistent with the (8+0) model and we are also able to assign values to the various parameters...
September 8, 2017: Journal of Structural Biology
https://www.readbyqxmd.com/read/28890060/transverse-versus-longitudinal-incisions-for-femoral-artery-exposure-in-treating-patients-with-peripheral-vascular-disease
#12
Punam P Parikh, Gustavo A Rubio, Kunal Patel, Kapil Gupta, Keith Jones, Jorge Rey, Handel Robinson
OBJECTIVE: This study evaluates differences in wound complication rate when transverse versus longitudinal incision is utilized to expose femoral vessels in managing patients with peripheral vascular disease. METHODS: A retrospective review from 2013-2015 was conducted of 150 patients undergoing 156 lower extremity revascularizations with femoral artery exposure through a groin incision. Patients were stratified into two groups, transverse versus longitudinal groin incision...
September 7, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28883214/the-incidence-of-atypical-femoral-fractures-in-patients-with-rheumatic-disease-yamagata-prefectural-committee-of-atypical-femoral-fractures-yamacafe-study
#13
Yuya Takakubo, Daichi Ohta, Masaji Ishi, Juji Ito, Hiroharu Oki, Yasushi Naganuma, Tomohiro Uno, Akiko Sasaki, Takeru Akabane, Katsuyuki Dairaku, Shinichi Goto, Yasuo Goto, Yumiko Kanauchi, Shinji Kobayashi, Taku Nakajima, Keiji Masuda, Michiharu Matsuda, Nariyuki Mura, Kenji Takenouchi, Hiroyuki Tsuchida, Yasushi Onuma, Junichirou Shibuya, Mitsuyoshi Seino, Osamu Yamaguchi, Ken Hiragami, Yasuhiro Urayama, Takashi Furukawa, Shouta Okuda, Ken Ogura, Takeshi Nakamura, Kan Sasaki, Tsuneo Konta, Michiaki Takagi
Atypical femoral fractures (AFFs) have been reported to occur with minimal or spontaneous subtrochanteric and femoral shaft fractures with a characteristic transverse pattern, compared with typical femoral fractures in young patients with high-energy trauma. AFFs are related to long-term use of bisphosphonates (BPs), glucocorticoids and rheumatic diseases. We have estimated a blind analysis of AFFs in rheumatic patients receiving BPs and glucocorticoids ordinary over a long time in all Yamagata prefectural area through radiographic examination...
August 2017: Tohoku Journal of Experimental Medicine
https://www.readbyqxmd.com/read/28878386/creation-of-a-multi-segmented-optical-needle-with-prescribed-length-and-spacing-using-the-radiation-pattern-from-a-sectional-uniform-line-source
#14
Yanzhong Yu, Han Huang, Mianmian Zhou, Qiwen Zhan
This paper presents a method to generate a multi-segmented optical needle with a strong longitudinally polarized field, uniform intensity along the optical axis, and a transverse size (~0.36λ). The length of each segment in the optical needle and the spacing between adjacent segments are controllable by reversing and focusing the radiation pattern from a sectional-uniform line source antenna to the focal volume of a 4Pi focusing system. By solving the inverse problem, we can obtain the required incident field distribution at the pupil plane to create the multi-segmented optical needle...
September 6, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28873212/simulation-analysis-of-rectifying-microfluidic-mixing-with-field-effect-tunable-electrothermal-induced-flow
#15
Weiyu Liu, Yukun Ren, Ye Tao, Bobin Yao, You Li
We report herein field-effect control on in-phase electrothermal streaming from a theoretical point of view, a phenomenon termed "AC electrothermal-flow field effect transistor" (ACET-FFET), in the context of a new technology for handing analytes in microfluidics. Field-effect control through a gate terminal endows ACET-FFET the ability to generate arbitrary symmetry breaking in the transverse vortex flow pattern, which makes it attractive for mixing microfluidic samples. A computational model is developed to study the feasibility of this new microfluidic device design for micromixing...
September 5, 2017: Electrophoresis
https://www.readbyqxmd.com/read/28866455/gait-deviations-in-transverse-plane-after-scfe-in-dependence-on-the-femoral-offset
#16
S Hummel, D Rosenthal, C Zilkens, H Hefter, R Krauspe, B Westhoff
Residual deformity of the femoral head after slipped capital femoral epiphysis (SCFE) may be accompanied by a loss of femoral offset and lead to femoro-acetabular impingement (FAI), especially during hip flexion. It is hypothesized that during phases of the gait cycle, when the hip is flexed, the offset-loss is compensated by an increased external rotation. The gait pattern of 36 patients suffering from SCFE, who were treated by pinning-in-situ, were compared to a control group of 40 healthy adults by an instrumented 3D-gait analysis...
August 26, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28863932/tissue-iron-quantification-in-chronic-liver-diseases-using-mri-shows-a-relationship-between-iron-accumulation-in-liver-spleen-and-bone-marrow
#17
M França, L Martí-Bonmatí, G Porto, S Silva, S Guimarães, Á Alberich-Bayarri, J R Vizcaíno, H Pessegueiro Miranda
AIM: To investigate iron loading within the liver, pancreas, spleen, and bone marrow using magnetic resonance imaging (MRI) transverse relaxation rate (R2*), in patients with diffuse liver diseases; to evaluate the relationships between iron accumulation in these tissue compartments; and to assess the association between tissue iron overload and the pattern of hepatic cellular iron distribution (hepatocytes versus Kupffer cells). MATERIAL AND METHODS: Fifty-six patients with diffuse liver diseases had MRI-derived R2* values, using a multi-echo chemical-shift encoded MRI sequence, of the liver, pancreas, spleen, and vertebral bone marrow...
August 29, 2017: Clinical Radiology
https://www.readbyqxmd.com/read/28855323/rib-kinematics-during-lung-ventilation-in-the-american-alligator-alligator-mississippiensis-an-xromm-analysis
#18
Robert J Brocklehurst, Sabine Moritz, Jonathan Codd, William I Sellers, Elizabeth L Brainerd
The current hypothesis regarding the mechanics of breathing in crocodylians is that the double-headed ribs, with both a capitulum and tuberculum, rotate about a constrained axis passing through the two articulations; moreover, this axis shifts in the caudal thoracic ribs, as the vertebral parapophysis moves from the centrum to the transverse process. Additionally, the ventral ribcage in crocodylians is thought to possess additional degrees of freedom through mobile intermediate ribs. In this study, X-ray reconstruction of moving morphology (XROMM) was used to quantify rib rotation during breathing in American alligators...
September 1, 2017: Journal of Experimental Biology
https://www.readbyqxmd.com/read/28841825/the-transverse-abdominal-muscle-is-excessively-active-during-active-straight-leg-raising-in-pregnancy-related-posterior-pelvic-girdle-pain-an-observational-study
#19
Jan M A Mens, Annelies Pool-Goudzwaard
BACKGROUND: Many studies suggest that impairment of motor control is the mechanical component of the pathogenesis of painful disorders in the lumbo-sacral region; however, this theory is still unproven and the results and recommendations for intervention remain questionable. The need for a force to compress both innominate bones against the sacrum is the basis for treatment of pregnancy-related pelvic girdle pain (PGP). Therefore, it is advised to use a pelvic belt and do exercises to enhance contraction of the muscles which provide this compression...
August 25, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28833436/fast-3d-magnetic-resonance-fingerprinting-for-a-whole-brain-coverage
#20
Dan Ma, Yun Jiang, Yong Chen, Debra McGivney, Bhairav Mehta, Vikas Gulani, Mark Griswold
PURPOSE: The purpose of this study was to accelerate the acquisition and reconstruction time of 3D magnetic resonance fingerprinting scans. METHODS: A 3D magnetic resonance fingerprinting scan was accelerated by using a single-shot spiral trajectory with an undersampling factor of 48 in the x-y plane, and an interleaved sampling pattern with an undersampling factor of 3 through plane. Further acceleration came from reducing the waiting time between neighboring partitions...
August 22, 2017: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
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