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https://www.readbyqxmd.com/read/28651677/influence-of-weight-at-the-time-of-first-palliation-on-survival-in-patients-with-a-single-ventricle
#1
Sushitha Surendran, T K Susheel Kumar, Ben Tansey, Jerry Allen, David Zurakowski, Umar Boston, Samir H Shah, Christopher J Knott-Craig
BACKGROUND: Numerous advances in surgical techniques and understanding of single-ventricle physiology have resulted in improved survival. We sought to determine the influence of various demographic, perioperative, and patient-specific factors on the survival of single-ventricle patients following stage 1 palliation at our institution. METHODS: We conducted a retrospective study of all single-ventricle patients who had undergone staged palliation at our institution over an 8-year period...
June 27, 2017: Cardiology in the Young
https://www.readbyqxmd.com/read/28646229/amplified-surface-temperature-response-of-cold-deep-lakes-to-inter-annual-air-temperature-variability
#2
R Iestyn Woolway, Christopher J Merchant
Summer lake surface water temperatures (LSWTs) have previously been shown to respond more rapidly to climatic warming compared to local summer surface air temperatures (SATs). In a global-scale analysis, we explore the factors underpinning the observation of an amplified response of summer LSWT to SAT variability using 20 years of satellite-derived temperatures from 144 lakes. We demonstrate that the degree of amplification in inter-annual summer LSWT is variable, and is greater for cold lakes (e.g. high latitude and high altitude), which are characterised by a short warming season, and deep lakes, that exhibit long correlation timescales of temperature anomalies due to increased thermal inertia...
June 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28643912/mouse-models-for-the-study-of-cranial-base-growth-and-anomalies
#3
REVIEW
S R Vora
The cranial base is a central and integral component of the cranioskeleton, yet little is known about its growth. Despite the dissimilarities between human and murine cranioskeletal form, mouse models are proving instrumental in studying craniofacial growth. The objectives of this review are to summarize recent findings from numerous mouse models that display growth defects in one or more cranial base synchondroses, with accompanying changes in chondrocyte cellular zones. Many of these models also display altered growth of the cranial vault and/or the facial region...
June 2017: Orthodontics & Craniofacial Research
https://www.readbyqxmd.com/read/28634360/missing-magnetism-in-sr4ru3o10-indication-for-antisymmetric-exchange-interaction
#4
Franziska Weickert, Leonardo Civale, Boris Maiorov, Marcelo Jaime, Myron B Salamon, Emanuela Carleschi, André M Strydom, Rosalba Fittipaldi, Veronica Granata, Antonio Vecchione
Metamagnetism occuring inside a ferromagnetic phase is peculiar. Therefore, Sr4Ru3O10, a T C  = 105 K ferromagnet, has attracted much attention in recent years, because it develops a pronounced metamagnetic anomaly below T C for magnetic fields applied in the crystallographic ab-plane. The metamagnetic transition moves to higher fields for lower temperatures and splits into a double anomaly at critical fields H c1 = 2.3 T and H c2 = 2.8 T, respectively. Here, we report a detailed study of the different components of the magnetization vector as a function of temperature, applied magnetic field, and varying angle in Sr4Ru3O10...
June 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28620599/dysmotility-in-esophageal-atresia-pathophysiology-characterization-and-treatment
#5
REVIEW
Christophe Faure, Franziska Righini Grunder
Esophageal dysmotility is almost universal after esophageal atresia (EA) repair and is mainly related to the developmental anomaly of the esophagus. Esophageal dysmotility is involved in the pathophysiology of numerous symptoms and comorbidities associated with EA such as gastroesophageal reflux disease, aspiration and respiratory complications, and symptoms of dysphagia and feeding disorders. High-resolution esophageal manometry (HREM) has facilitated the characterization of the dysmotility, but there is an incomplete correlation between symptoms and manometrical patterns...
2017: Frontiers in Pediatrics
https://www.readbyqxmd.com/read/28605109/a-randomized-double-blind-placebo-and-risperidone-controlled-study-on-valnoctamide-for-acute-mania
#6
Mark Weiser, Linda Levi, Stephen Z Levine, Meir Bialer, Tawfeeq Shekh-Ahmad, Valentin Matei, Alexandru Tiugan, Diana Cirjaliu, Cristinel Sava, Eugenia Sinita, Daisy Zamora, John M Davis
OBJECTIVES: Mood stabilizers administered for bipolar disorder during pregnancy, such as valproic acid, can increase the risk of congenital anomalies in offspring. Valnoctamide is a valproic acid derivative associated with a decreased risk for congenital abnormalities in animals. The present study evaluated the efficacy and safety of valnoctamide monotherapy, compared to placebo, in the treatment of patients in an acute manic episode. METHODS: A 3-week, double-blind, randomized, placebo- and risperidone-controlled, parallel group trial was conducted on 173 patients in an acute manic episode...
June 12, 2017: Bipolar Disorders
https://www.readbyqxmd.com/read/28591814/abnormal-gray-matter-shape-thickness-and-volume-in-the-motor-cortico-subcortical-loop-in-idiopathic-rapid-eye-movement-sleep-behavior-disorder-association-with-clinical-and-motor-features
#7
Shady Rahayel, Ronald B Postuma, Jacques Montplaisir, Christophe Bedetti, Simona Brambati, Julie Carrier, Oury Monchi, Pierre-Alexandre Bourgouin, Malo Gaubert, Jean-François Gagnon
Idiopathic rapid eye movement sleep behavior disorder (iRBD) is a major risk factor for Parkinson's disease and dementia with Lewy bodies. Anatomical gray matter abnormalities in the motor cortico-subcortical loop areas remain under studied in iRBD patients. We acquired T1-weighted images and administrated quantitative motor tasks in 41 patients with polysomnography-confirmed iRBD and 41 healthy subjects. Cortical thickness and voxel-based morphometry (VBM) analyses were performed to investigate local cortical thickness and gray matter volume changes, vertex-based shape analysis to investigate shape of subcortical structures, and structure-based volumetric analyses to investigate volumes of subcortical and brainstem structures...
June 7, 2017: Cerebral Cortex
https://www.readbyqxmd.com/read/28555321/-rare-metabolic-disorders-and-urolithiasis
#8
REVIEW
C Fisang, N Laube
Numerous metabolic anomalies, which often have no direct pathological relevance when considered individually, are found in all people. In most patients with urinary tract stones, it can be assumed that a specific combination or interaction of these anomalies occurs, thus, resulting in stone formation, but only after individual exogenous risk factors are triggered. Lithogenesis is the result of a cascade of different "events" that are temporally close to one another, but sometimes these events interact strong enough that significant stone growth occurs...
May 29, 2017: Der Urologe. Ausg. A
https://www.readbyqxmd.com/read/28541291/gigantic-negative-magnetoresistance-in-the-bulk-of-a-disordered-topological-insulator
#9
Oliver Breunig, Zhiwei Wang, A A Taskin, Jonathan Lux, Achim Rosch, Yoichi Ando
With the recent discovery of Weyl semimetals, the phenomenon of negative magnetoresistance (MR) is attracting renewed interest. Large negative MR is usually related to magnetism, but the chiral anomaly in Weyl semimetals is a rare exception. Here we report a mechanism for large negative MR which is also unrelated to magnetism but is related to disorder. In the nearly bulk-insulating topological insulator TlBi0.15Sb0.85Te2, we observed gigantic negative MR reaching 98% in 14 T at 10 K, which is unprecedented in a nonmagnetic system...
May 25, 2017: Nature Communications
https://www.readbyqxmd.com/read/28508476/magnetic-resonance-electrical-properties-tomography-for-small-anomalies-using-boundary-conditions-a-simulation-study
#10
Joonsung Lee, Narae Choi, Jin Keun Seo, Dong-Hyun Kim
PURPOSE: Magnetic Resonance Electrical Property Tomography (MREPT) is an emerging imaging modality using measured B1 maps from Magnetic Resonance Imaging (MRI) to measure a distribution of electric conductivity and permittivity of the subject at the Larmor frequency. Conventional MREPT approachesat single transmit channel system using the Helmholtz equation rely on an assumption that conductivity and permittivity of the subject are locally homogeneous. For small tissue structures and tissue boundaries, in which the assumption of locally homogeneous conductivity and permittivity does not hold, the reconstructed conductivity values deviated from the actual values, so called "Boundary Artifacts"...
May 16, 2017: Medical Physics
https://www.readbyqxmd.com/read/28501016/role-of-climate-anomalies-on-decadal-variation-in-the-occurrence-of-wintertime-haze-in-the-yangtze-river-delta-china
#11
Jianming Xu, Luyu Chang, Fengxia Yan, JinHai He
The wintertime haze day (HD) in the Yangtze River Delta (YRD) region of China shows a significant upward trend during the past decades due to the rapid industrialization and urbanization. Besides the enhanced anthropogenic emission, climate change also plays the important role in the long term HD variations. In this study, the significant decadal variation of wintertime HD during the period 1960-2012 in YRD is examined by the empirical orthogonal function (EOF) analysis, featured as less HD occurrence before 1980 and more occurrence after 2000...
December 1, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28500352/whole-mantle-convection-with-tectonic-plates-preserves-long-term-global-patterns-of-upper-mantle-geochemistry
#12
T L Barry, J H Davies, M Wolstencroft, I L Millar, Z Zhao, P Jian, I Safonova, M Price
The evolution of the planetary interior during plate tectonics is controlled by slow convection within the mantle. Global-scale geochemical differences across the upper mantle are known, but how they are preserved during convection has not been adequately explained. We demonstrate that the geographic patterns of chemical variations around the Earth's mantle endure as a direct result of whole-mantle convection within largely isolated cells defined by subducting plates. New 3D spherical numerical models embedded with the latest geological paleo-tectonic reconstructions and ground-truthed with new Hf-Nd isotope data, suggest that uppermost mantle at one location (e...
May 12, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28465788/type-2-diabetes-and-quality-of-life
#13
REVIEW
Aikaterini Trikkalinou, Athanasia K Papazafiropoulou, Andreas Melidonis
It is true that a primary goal of diabetes early diagnosis and treatment is quality of life (QoL). The term QoL is still confusing but it is agreed that it composes of four components: The physical component, mental, cogitative component, psychological and social component. Many articles have been written addressing those four components. During the last five years 15500 articles and reviews have been written addressing diabetes and coronary arterial disease, 16100 addressing diabetes and renal function, 28900 addressing diabetes and retinopathy, 16800 addressing diabetic foot ulcers and other 26300 addressing diabetic neuropathy...
April 15, 2017: World Journal of Diabetes
https://www.readbyqxmd.com/read/28454552/how-common-is-ponticulus-posticus-on-lateral-cephalograms
#14
Jamal Giri, Prabhat Ranjan Pokharel, Rajesh Gyawali
BACKGROUND: Ponticulus posticus is an anomaly of first cervical vertebra visible on lateral cephalogram and has some serious medical and surgical implications. Unfortunately, it is often overlooked or undetected by orthodontists. The general objective of this study is to sensitize orthodontists about this anomaly by depicting its prevalence among a group of Nepalese orthodontic patients. METHODS: Four hundred and fourteen digital lateral cephalograms of orthodontic patients were retrieved from the archives of the department...
April 28, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28437916/multiband-selective-absorbers-made-of-1d-periodic-ag-sio-sub-2-sub-ag-core-shell-coaxial-cylinders-horizontally-lying-on-a-planar-substrate
#15
Yi Zhao, Ceji Fu
In this paper, we present a one-dimensional periodic microstructure for multiband selective absorbers of thermal radiation. The microstructure is made of Ag/SiO<sub>2</sub>/Ag core/shell coaxial cylinders horizontally lying on top of a SiO<sub>2</sub> dielectric spacer and an opaque silver substrate. The spectral-directional absorptivity of the proposed structure was numerically investigated with the finite element based Comsol Multiphysics software. Multiband selective absorption in the wavenumber range from 2500 to 20000 cm<sup>-1</sup> for TM-wave incidence was obtained...
April 17, 2017: Optics Express
https://www.readbyqxmd.com/read/28429036/a-review-of-zika-virus-infections-in-pregnancy-and-implications-for-antenatal-care-in-singapore
#16
Harvard Zhenjia Lin, Paul Anantharajah Tambyah, Eu Leong Yong, Arijit Biswas, Shiao-Yng Chan
Given the consensus that there is a causal relationship between Zika virus (ZIKV) infection in pregnancy and congenital Zika syndrome (CZS), clinicians must be prepared to manage affected patients despite the numerous gaps in current knowledge. The clinical course in pregnancy appears similar to that in non-pregnant women, although viraemia may be prolonged. ZIKV infection can be diagnosed by serum and urine reverse transcription-polymerase chain reaction, but commercially available serological tests are currently unreliable in dengue-endemic regions...
April 2017: Singapore Medical Journal
https://www.readbyqxmd.com/read/28419896/the-use-of-diatoms-in-ecotoxicology-and-bioassessment-insights-advances-and-challenges
#17
REVIEW
Lalit K Pandey, Elizabeth A Bergey, Jie Lyu, Jihae Park, Soyeon Choi, Hojun Lee, Stephen Depuydt, Young-Tae Oh, Sung-Mo Lee, Taejun Han
Diatoms are regularly used for bioassessment and ecotoxicological studies in relation to environmental and anthropogenic disturbances. Traditional taxonomical diatom parameters (cell counts, biovolume estimates, species richness, diversity indices and metrics using sensitive and tolerant diatom species) are regularly used for these studies. In the same context, very less focus was given on new endpoints of diatoms (life-forms, nuclear anomalies, alteration in photosynthetic apparatus shape, motility, lipid bodies, size reduction and deformities), in spite of their numerous merits, such as, their easiness, quickness, cheapness, global acceptation and no especial training in diatom taxonomy...
July 1, 2017: Water Research
https://www.readbyqxmd.com/read/28413304/simultaneous-single-staged-repair-of-anorectal-malformation-with-tracheoesophageal-fistula-lessons-learned
#18
Ajay Narayan Gangopadhyay, Vaibhav Pandey
INTRODUCTION: Anorectal malformation (ARM) associated esophageal atresia (EA) with tracheoesophageal fistula (TEF) spawns special therapeutic propositions. The outcome of these patients banks on numerous factors. We performed this study with an aim to compare the outcome of single-staged simultaneous primary repair of both anomalies versus staged repair of these disorders. MATERIALS AND METHODS: Retrospective review of cases with ARM and associated EA with TEF managed over a period of 5 years from July 2010 to June 2015 after ethical approval was undertaken...
April 2017: Journal of Indian Association of Pediatric Surgeons
https://www.readbyqxmd.com/read/28395085/partial-agenesis-and-hypoplasia-of-the-corpus-callosum-in-idiopathic-autism
#19
Jarek Wegiel, Michael Flory, Wojciech Kaczmarski, W Ted Brown, Kathryn Chadman, Thomas Wisniewski, Krzysztof Nowicki, Izabela Kuchna, Shuang Yong Ma, Jerzy Wegiel
To test the hypothesis that developmental anomalies of the corpus callosum (CC), contribute to the pathogenesis of autism, we characterized the type, topography, and severity of CC pathology corresponding to reduced CC areas that are detected by magnetic resonance imaging in the brains of 11 individuals with autism and 11 controls. In the brains of 3 autistic subjects, partial CC agenesis resulted in complete or partial lack of interhemispheric axonal connections in CC segments III-V. In these cases, a combination of focal agenesis and uniform axonal deficit caused reduction of CC areas by 37%, of axon numbers by 62%, and of the numerical density of axons by 39%...
March 1, 2017: Journal of Neuropathology and Experimental Neurology
https://www.readbyqxmd.com/read/28393846/an-algorithm-of-association-rule-mining-for-microbial-energy-prospection
#20
Muhammad Shaheen, Muhammad Shahbaz
The presence of hydrocarbons beneath earth's surface produces some microbiological anomalies in soils and sediments. The detection of such microbial populations involves pure bio chemical processes which are specialized, expensive and time consuming. This paper proposes a new algorithm of context based association rule mining on non spatial data. The algorithm is a modified form of already developed algorithm which was for spatial database only. The algorithm is applied to mine context based association rules on microbial database to extract interesting and useful associations of microbial attributes with existence of hydrocarbon reserve...
April 10, 2017: Scientific Reports
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