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https://www.readbyqxmd.com/read/28822721/postural-assessment-in-class-iii-patients-before-orthognathic-surgery
#1
Fernando Zugno Kulczynski, Fernando de Oliveira Andriola, Pedro Henrique Deon, Denizar Alberto da Silva Melo, Rogério Miranda Pagnoncelli
PURPOSE: To determine the postural characteristics of patients with Class III dentofacial deformities before orthognathic surgery by photogrammetry using SAPO postural assessment software. MATERIALS AND METHODS: This was a cross-sectional study. Eligible participants were adult patients who had an indication for orthognathic surgery to correct skeletal Class III dentofacial deformities and were undergoing orthodontic preparation for surgery. Patients were recruited at the outpatient clinic for dentofacial deformities of the authors' institution from March to November 2015...
July 25, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28822677/dentoskeletal-parameters-related-to-visual-perception-of-facial-asymmetry-in-patients-with-skeletal-class-iii-malocclusion-after-orthognathic-surgery
#2
C-W Lin, Y-C Wang, Y-H Chen, E W-C Ko
The purpose of the study is to explore the critical parameters determining the visual perception of postoperative facial symmetry. This study retrospectively included 24 patients with skeletal class III malocclusion and double-jaw orthognathic surgery (OgS). The patients were classified according to the outcome of subjective visual perception scores (SVPS) based on the postoperative frontal images by 10 orthodontists: symmetrical surgical outcome (S group, n=12) and facial asymmetry after surgery (A group, n=12)...
August 16, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28822540/life-threatening-complications-and-mortality-of-minimally-invasive-pectus-surgery
#3
André Hebra, Robert E Kelly, Marcelo M Ferro, Mustafa Yüksel, Jose Ribas M Campos, Donald Nuss
The prevalence and type of life-threatening complications related to the minimally invasive repair of pectus excavatum (MIRPE) and bar removal are unknown and underreported. The purpose of this communication is to make surgeons aware of the risk of these life threatening complications as well as the modifications which have been developed to prevent them. METHODS: Data related to life-threatening complications of Pectus Excavatum (PE) patients was obtained from four sources: 1. A survey of Chest Wall International Group (CWIG) surgeons who specialize in repairing congenital chest wall malformations, 2...
July 31, 2017: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/28822476/posture-alignment-of-adolescent-idiopathic-scoliosis-photogrammetry-in-scoliosis-school-screening
#4
Patrícia Jundi Penha, Nárima Lívia Jundi Penha, Bárbarah Kelly Gonçalves De Carvalho, Rodrigo Mantelatto Andrade, Ana Carolina Basso Schmitt, Sílvia Maria Amado João
OBJECTIVE: The objective of this study was to describe the posture patterns of adolescents diagnosed with adolescent idiopathic scoliosis (AIS) in a scoliosis school screening (SSS). METHODS: Two-dimensional photogrammetry was used to assess the posture of 37 adolescents diagnosed with scoliosis (scoliosis group, SG) (Cobb angle ≥10°) and 76 adolescents with a false positive diagnosis (false positive group, FPG) (Cobb angle <10°, angle of trunk rotation ≥7°)...
July 2017: Journal of Manipulative and Physiological Therapeutics
https://www.readbyqxmd.com/read/28821654/wnt9a-can-influence-cell-fates-and-neural-connectivity-across-the-radial-axis-of-the-developing-cochlea
#5
Vidhya Munnamalai, Ulrike J Sienknecht, R Keith Duncan, M Katie Scott, Ankita Thawani, Kristen N Fantetti, Nadia M Atallah, Deborah J Biesemeier, Kuhn H Song, Kirsten Luethy, Eric Traub, Donna M Fekete
Vertebrate hearing organs manifest cellular asymmetries across the radial axis that underlie afferent versus efferent circuits between the inner ear and the brain. Thus, understanding the molecular control of patterning across this axis has important functional implications. Radial axis patterning begins before the cells become postmitotic, and is likely linked to the onset of asymmetric expression of secreted factors adjacent to the sensory primordium. This study explores one such asymmetrically-expressed gene, Wnt9a, that becomes restricted to the neural edge of the avian auditory organ, the basilar papilla, by embryonic day (E) 5...
August 14, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28820673/asymmetric-compression-of-representational-space-for-object-animacy-categorization-under-degraded-viewing-conditions
#6
Tijl Grootswagers, J Brendan Ritchie, Susan G Wardle, Andrew Heathcote, Thomas A Carlson
Animacy is a robust organizing principle among object category representations in the human brain. Using multivariate pattern analysis methods, it has been shown that distance to the decision boundary of a classifier trained to discriminate neural activation patterns for animate and inanimate objects correlates with observer RTs for the same animacy categorization task [Ritchie, J. B., Tovar, D. A., & Carlson, T. A. Emerging object representations in the visual system predict reaction times for categorization...
August 18, 2017: Journal of Cognitive Neuroscience
https://www.readbyqxmd.com/read/28820411/-importance-of-shear-wave-elastography-of-livers-in-practically-healthy-pregnant-women
#7
E Sariyeva, S Salahova, N Bayramov
Pulse-wave elastography (SWE) that is one of the mostly used methods in the recent years holds important place in assessment of liver fibrosis. However there is no exact information on the results of liver elastography in healthy pregnant women in the world literature. The aim of the study was to investigate theSWE parameters of liver elastography in practically healthy pregnant women. The subject of the research was 50 practically healthy pregnant women within 18-45 years old (mean age 27.7±0.7). The pregnant women with genital and extragenital diseases were not included to the research...
July 2017: Georgian Medical News
https://www.readbyqxmd.com/read/28819749/time-dependent-asymmetric-linear-parsimonious-ancestral-state-reconstruction
#8
Gilles Didier
The time-dependent-asymmetric-linear parsimony is an ancestral state reconstruction method which extends the standard linear parsimony (a.k.a. Wagner parsimony) approach by taking into account both branch lengths and asymmetric evolutionary costs for reconstructing quantitative characters (asymmetric costs amount to assuming an evolutionary trend toward the direction with the lowest cost). A formal study of the influence of the asymmetry parameter shows that the time-dependent-asymmetric-linear parsimony infers states which are all taken among the known states, except for some degenerate cases corresponding to special values of the asymmetry parameter...
August 17, 2017: Bulletin of Mathematical Biology
https://www.readbyqxmd.com/read/28819315/mce-domain-proteins-conserved-inner-membrane-lipid-binding-proteins-required-for-outer-membrane-homeostasis
#9
Georgia L Isom, Nathaniel J Davies, Zhi-Soon Chong, Jack A Bryant, Mohammed Jamshad, Maria Sharif, Adam F Cunningham, Timothy J Knowles, Shu-Sin Chng, Jeffrey A Cole, Ian R Henderson
Bacterial proteins with MCE domains were first described as being important for Mammalian Cell Entry. More recent evidence suggests they are components of lipid ABC transporters. In Escherichia coli, the single-domain protein MlaD is known to be part of an inner membrane transporter that is important for maintenance of outer membrane lipid asymmetry. Here we describe two multi MCE domain-containing proteins in Escherichia coli, PqiB and YebT, the latter of which is an orthologue of MAM-7 that was previously reported to be an outer membrane protein...
August 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28819301/asymmetry-of-the-temporal-code-for-space-by-hippocampal-place-cells
#10
Bryan C Souza, Adriano B L Tort
Hippocampal place cells convey spatial information through spike frequency ("rate coding") and spike timing relative to the theta phase ("temporal coding"). Whether rate and temporal coding are due to independent or related mechanisms has been the subject of wide debate. Here we show that the spike timing of place cells couples to theta phase before major increases in firing rate, anticipating the animal's entrance into the classical, rate-based place field. In contrast, spikes rapidly decouple from theta as the animal leaves the place field and firing rate decreases...
August 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28818948/vinculin-forms-a-directionally-asymmetric-catch-bond-with-f-actin
#11
Derek L Huang, Nicolas A Bax, Craig D Buckley, William I Weis, Alexander R Dunn
Vinculin is an actin-binding protein thought to reinforce cell-cell and cell-matrix adhesions. However, how mechanical load affects the vinculin-F-actin bond is unclear. Using a single-molecule optical trap assay, we found that vinculin forms a force-dependent catch bond with F-actin through its tail domain, but with lifetimes that depend strongly on the direction of the applied force. Force toward the pointed (-) end of the actin filament resulted in a bond that was maximally stable at 8 piconewtons, with a mean lifetime (12 seconds) 10 times as long as the mean lifetime when force was applied toward the barbed (+) end...
August 18, 2017: Science
https://www.readbyqxmd.com/read/28818840/hcn4-ion-channel-function-is-required-for-early-events-that-regulate-anatomical-left-right-patterning-in-a-nodal-and-lefty-asymmetric-gene-expression-independent-manner
#12
Vaibhav P Pai, Valerie Willocq, Emily J Pitcairn, Joan M Lemire, Jean-François Paré, Nian-Qing Shi, Kelly A McLaughlin, Michael Levin
Laterality is a basic characteristic of all life forms, from single cell organisms to complex plants and animals. For many metazoans, consistent left-right asymmetric patterning is essential for the correct anatomy of internal organs, such as the heart, gut, and brain; disruption of left-right asymmetry patterning leads to an important class of birth defects in human patients. Laterality functions across multiple scales, where early embryonic, subcellular and chiral cytoskeletal events are coupled with asymmetric amplification mechanisms and gene regulatory networks leading to asymmetric physical forces that ultimately result in distinct left and right anatomical organ patterning...
August 17, 2017: Biology Open
https://www.readbyqxmd.com/read/28818329/influence-of-different-packing-methods-on-the-hydrodynamic-stability-of-chromatography-columns
#13
M Dorn, F Eschbach, D Hekmat, D Weuster-Botz
It is well known that packing non-uniformity may cause peak asymmetry and limit the performance of packed-bed chromatographic columns. However, understanding of the reasons leading to packing non-uniformity is still limited. Therefore, the effect of different column packing methods, i.e. dynamic axial compression (DAC), flow packing, and combinations of both on the hydrodynamic packing heterogeneity and stability of packings composed of polymer-based compressible porous resins with a mean diameter of 90μm was investigated experimentally as well as in-silico...
August 8, 2017: Journal of Chromatography. A
https://www.readbyqxmd.com/read/28817775/departure-from-a-spherically-symmetric-ground-state-in-a-system-with-a-half-filled-shell-the-case-example-of-berkelium-iv-iodate
#14
Mark A Silver, Samantha K Cary, Alejandro J Garza, Ryan E Baumbach, Alexandra A Arico, Gregory A Galmin, Kuan-Wen Chen, Jason A Johnson, Jamie C Wang, Ronald J Clark, Alexander Chemey, Teresa M Eaton, Matthew L Marsh, Kevin Seidler, Shane S Galley, Lambertus van de Burgt, Ashley L Gray, David E Hobart, Kenneth Hanson, Shelley M van Cleve, Frédéric Gendron, Jochen Autschbach, Gustavo E Scuseria, Laurent Maron, Manfred Speldrich, Paul Kögerler, Cristian Celis-Barros, Dayán Paéz-Hernandéz, Ramiro Arratia-Perez, Michael Ruf, Thomas E Albrecht-Schmitt
The reaction of 249Bk(OH)4 with iodate under hydrothermal conditions results in the formation of Bk(IO3)3 as the major product with trace amounts of Bk(IO3)4 also crystallizing from the reaction mixture. The structure of Bk(IO3)3 consists of nine-coordinate BkIII cations that are bridged by iodate anions to yield layers that are isomorphous with those found for AmIII, CfIII, and with lanthanides that possess similar ionic radii. Bk(IO3)4 was expected to adopt the same structure as M(IO3)4 (M = Ce, Np, Pu), but instead parallels the structural chemistry of the smaller ZrIV cation...
August 17, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28817289/how-to-drive-a-flashing-electron-ratchet-to-maximize-current
#15
Ofer Kedem, Bryan Lau, Emily A Weiss
Biological systems utilize a combination of asymmetry, noise, and chemical energy to produce motion in the highly damped environment of the cell with molecular motors, many of which are "ratchets", nonequilibrium devices for producing directed transport using nondirectional perturbations without a net bias. The underlying ratchet principle has been implemented in man-made micro- and nanodevices to transport charged particles by oscillating an electric potential with repeating asymmetric features. In this experimental study, the ratcheting of electrons in an organic semiconductor is optimized by tuning the temporal modulation of the oscillating potential, applied using nanostructured electrodes...
August 21, 2017: Nano Letters
https://www.readbyqxmd.com/read/28816000/investigating-facial-phenotype-in-autism-spectrum-conditions-the-importance-of-a-hypothesis-driven-approach
#16
Maryam Boutrus, Murray T Maybery, Gail A Alvares, Diana Weiting Tan, Kandice J Varcin, Andrew J O Whitehouse
Atypical facial characteristics have been observed in many disorders associated with developmental disability. While autism spectrum conditions (ASC) have not previously been thought to be associated with a distinct facial phenotype, an emerging research literature is casting doubt on this assumption. The identification of differences in the facial phenotype of individuals with ASC may contribute to efforts to promote early identification of the condition and help elucidate etiological pathways. With the aim of identifying facial phenotypes associated with ASC, this commentary evaluated facial features purported to distinguish ASC from typical development...
August 17, 2017: Autism Research: Official Journal of the International Society for Autism Research
https://www.readbyqxmd.com/read/28815827/outer-membrane-lipid-homeostasis-via-retrograde-phospholipid-transport-in-escherichia-coli
#17
Rahul Shrivastava, Xiang'Er Jiang, Shu-Sin Chng
Biogenesis of the outer membrane (OM) in Gram-negative bacteria, which is essential for viability, requires the coordinated transport and assembly of proteins and lipids, including lipopolysaccharides (LPS) and phospholipids (PLs), into the membrane. While pathways for LPS and OM protein assembly are well-studied, how PLs are transported to and from the OM is not clear. Mechanisms that ensure OM stability and homeostasis are also unknown. The trans-envelope Tol-Pal complex, whose physiological role has remained elusive, is important for OM stability...
August 16, 2017: Molecular Microbiology
https://www.readbyqxmd.com/read/28814637/asymmetric-vestibular-stimulation-reveals-persistent-disruption-of-motion-perception-in-unilateral-vestibular-lesions
#18
Roberto Panichi, Mario Faralli, Rosa Bruni, Artemis Kiriakarely, Chiara Occhigrossi, Aldo Ferraresi, Adolfo M Bronstein, Vito Enrico Pettorossi
Self-motion perception was studied in patients with unilateral vestibular lesions (UVL) due to acute vestibular neuritis at 1 week, 4, 8 and 12 months after the acute episode. We assessed vestibularly-mediated self-motion perception by measuring the error in reproducing the position of a remembered visual target at the end of 4 cycles of asymmetric whole-body rotation. The oscillatory stimulus consists of a slow (0.09Hz) and a fast (0.38Hz) half cycle. A large error was present in UVL patients when the slow half cycle was delivered towards the lesion side, but minimal towards the healthy side...
August 16, 2017: Journal of Neurophysiology
https://www.readbyqxmd.com/read/28814097/prominent-deep-medullary-veins-a-predictive-biomarker-for-stroke-risk-from-transient-ischemic-attack
#19
Yang Duan, Zhihua Xu, Hongyi Li, Xiaonan Cai, Cancan Chang, Benqiang Yang
Background Deep medullary veins (DMVs) are a biomarker of severity and prognosis in patients with acute cerebral infarction. However, their clinical significance remains unclear in patients with transient ischemic attack (TIA). Purpose To determine whether prominent deep medullary veins (PDMVs) are a predictive biomarker for stroke risk after TIA. Material and Methods Clinical and imaging data of 49 patients with TIA and 49 sex- and age-matched controls were studied. PDMVs were defined as DMVs with a score of 3 (TDMVs) or asymmetric DMVs (ADMVs), and the relationship between PDMVs and clinical features was analyzed...
January 1, 2017: Acta Radiologica
https://www.readbyqxmd.com/read/28814049/wearable-sensing-for-rehabilitation-after-stroke-bimanual-jerk-asymmetry-encodes-unique-information-about-the-variability-of-upper-extremity-recovery
#20
Diogo S de Lucena, Oliver Stoller, Justin B Rowe, Vicky Chan, David J Reinkensmeyer
Wearable sensing is a new tool for quantifying upper extremity (UE) rehabilitation after stroke. However, it is unclear whether it provides information beyond what is available through standard clinical assessments. To investigate this question, people with a chronic stroke (n=9) wore accelerometers on both wrists for 9 hours on a single day during their daily activities. We used principal components analysis (PCA) to characterize how novel kinematic measures of jerk and acceleration asymmetry, along with conventional measures of limb use asymmetry and clinical function, explained the behavioral variance of UE recovery across participants...
July 2017: IEEE ... International Conference on Rehabilitation Robotics: [proceedings]
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