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https://www.readbyqxmd.com/read/29243945/coordination-in-gait-demonstration-of-a-spectral-approach
#1
Genevieve K R Williams, Domenico Vicinanza
Many important notions in Life Sciences are linked with the idea of cycles, periodicity, fluctuations and transitions. The aim of this paper is to use spectral analysis in a unique way to study and quantify whole body coordination during gait. A participant walked at 3 km/h and ran at 15 km/h on a treadmill for 2 minutes. Position of the approximate center of rotation of the toe, ankle, knee, hip, shoulder, elbow and wrist, heel, PSIS and head were collected (CODAmotion; 100 Hz). Fast Fourier Transform was performed on x-coordinate data of the 1) knee marker; 2) 4 markers attached to the free lower limb (toe, ankle, heel and knee); 3) left and right free lower limbs; 4) whole body (all markers)...
December 15, 2017: Journal of Sports Sciences
https://www.readbyqxmd.com/read/29241163/diagnosis-and-management-of-necrotizing-enterocolitis-an-international-survey-of-neonatologists-and-pediatric-surgeons
#2
Mélanie Valpacos, Delphine Arni, Amy Keir, Ann Aspirot, James C H Wilde, Spencer Beasley, Daniele De Luca, Riccardo E Pfister, Oliver Karam
BACKGROUND: Necrotizing enterocolitis (NEC) is a serious complication of prematurity. Currently, there is limited evidence to guide investigation and treatment strategies. OBJECTIVES: To evaluate the parameters used to diagnose or exclude NEC, and to identify differences between neonatologists and pediatric surgeons. METHODS: A scenario-based survey was sent to neonatologists and pediatric surgeons. RESULTS: 173 physicians from 26 countries completed the survey (55% neonatologists and 45% pediatric surgeons)...
December 15, 2017: Neonatology
https://www.readbyqxmd.com/read/29232938/factors-associated-with-time-to-diagnosis-from-symptom-onset-in-patients-with-early-rheumatoid-arthritis
#3
Soo-Kyoung Cho, Dam Kim, Soyoung Won, Jiyoung Lee, Chan-Bum Choi, Jung-Yoon Choe, Seung-Jae Hong, Jae-Bum Jun, Tae-Hwan Kim, Eunmi Koh, Hye-Soon Lee, Jisoo Lee, Dae-Hyun Yoo, Bo Young Yoon, Sang-Cheol Bae, Yoon-Kyoung Sung
Background/Aims: To identify the factors associated with time to diagnosis after symptom onset in patients with early rheumatoid arthritis (RA). Methods: Early RA patients with ≤ 1 year of disease duration in the KORean Observational study Network for Arthritis (KORONA) database were included in this analysis. Patients were further divided into two groups according to the time to diagnosis from symptom onset: the early diagnosis group (time to diagnosis ≤ 1 year) and the late diagnosis group (time to diagnosis > 1 year)...
December 15, 2017: Korean Journal of Internal Medicine
https://www.readbyqxmd.com/read/29226677/tuning-the-two-dimensional-electron-gas-at-oxide-interfaces-with-ti-o-configurations-evidence-from-x-ray-photoelectron-spectroscopy
#4
Yu Zhang, Yulin Gan, Wei Niu, Kion Norrman, Xi Yan, Dennis V Christensen, Merlin von Soosten, Hongrui Zhang, BaoGen Shen, Nini Pryds, JiRong Sun, Yunzhong Chen
Chemical redox reaction can lead to a two-dimensional electron gas (2DEG) at the interface between a TiO2-terminated SrTiO3 (STO) substrate and an amorphous LaAlO3 (a-LAO) capping layer. When replacing the STO substrate with rutile and anatase TiO2 substrates, considerable differences in interfacial conduction are observed. Based on X-ray photoelectron spectroscopy (XPS) and transport measurements, we conclude that the interfacial conduction comes from redox reactions, and that the differences among the materials systems result mainly from variations in the activation energies for the diffusion of oxygen vacancies at substrate surfaces...
December 11, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29217349/arthrodesis-of-the-proximal-interphalangeal-joint-of-the-4th-and-5th-finger-using-an-interlocking-screw-device-to-treat-severe-recurrence-of-dupuytren-s-disease
#5
C D Novoa-Parra, D Montaner-Alonso, J I Pérez-Correa, J Morales-Rodríguez, J L Rodrigo-Pérez, M Morales-Suarez-Varela
OBJECTIVE: To assess the radiological and functional outcome of arthrodesis of the 4th and 5th finger using the APEX™ (Extremity Medical, Parsippany,NJ)intermedullary interlocking screw system in patients with severe recurrence of Dupuytren's disease. MATERIAL AND METHOD: The DASH questionnaire and the VAS scale were used to assess the clinical outcomes. The angle of arthrodesis, fusion time and implant fixation were evaluated on x-rays. The patients were monitored for complications during surgery and the follow-up period...
December 4, 2017: Revista Española de Cirugía Ortopédica y Traumatología
https://www.readbyqxmd.com/read/29214678/pedicled-iliac-crest-bone-flap-transfer-for-the-treatment-of-upper-femoral-shaft-fracture-nonunion-an-anatomic-study-and-clinical-applications
#6
Dewei Zhao, Meng Cao, Tienan Wang, Benjie Wang, Baoyi Liu, William C Lineaweaver
PURPOSE: We present the results of a study on the anatomy of the ascending branch of the lateral circumflex femoral artery (AB-LCFA) and the use of the pedicled iliac bone flap transfer perfused by AB-LCFA combined with external fixation for the treatment of the nonunion of upper femoral shaft fractures. METHODS: The orientation, diameter, length, and distribution of the AB-LCFA from 40 lower limbs of adult cadavers were dissected and measured. From 2000 to 2012, 13 patients with nonunion of upper femoral shaft fractures underwent pedicled iliac bone flap transfer perfused by the AB-LCFA combined with external fixation...
December 7, 2017: Microsurgery
https://www.readbyqxmd.com/read/29207767/clinical-utility-of-blood-cell-histogram-interpretation
#7
REVIEW
E T Arun Thomas, S Bhagya, Abdul Majeed
An automated haematology analyser provides blood cell histograms by plotting the sizes of different blood cells on X-axis and their relative number on Y-axis. Histogram interpretation needs careful analysis of Red Blood Cell (RBC), White Blood Cell (WBC) and platelet distribution curves. Histogram analysis is often a neglected part of the automated haemogram which if interpreted well, has significant potential to provide diagnostically relevant information even before higher level investigations are ordered...
September 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/29206333/a-chemical-view-on-x-ray-photoelectron-spectroscopy-the-esca-molecule-and-surface-to-bulk-xps-shifts
#8
Francisco Delesma, Maxime Van den Bossche, Henrik Grönbeck, Patrizia Calaminici, Andreas Köster, Lars G M Pettersson
In this paper we remind the reader of a simple, intuitive picture of chemical shifts in x-ray photoelectron spectroscopy (XPS) as the difference in chemical bonding between the probed atom and its neighbor to the right in the periodic table, the so called Z+1 approximation. We use the classical ESCA molecule, ethyl trifluoroacetate, and 4d-transition metals to explicitly demonstrate agreement between core-level shifts computed as differences between final core-hole states and the approach where each core-ionized atom is replaced by a Z+1 atom...
December 5, 2017: Chemphyschem: a European Journal of Chemical Physics and Physical Chemistry
https://www.readbyqxmd.com/read/29203220/bilateral-spontaneous-anterior-shoulder-dislocation-a-missed-orthopedic-injury-mistaken-as-proximal-neuropathy
#9
Khalil Ahmad, Saeed Bin Ayaz, Heyyan Bin Khalil, Sumeera Matee
A number of orthopedic injuries can occur during epileptic seizures. Anterior shoulder dislocation is one such orthopedic injury that is quite rare. The shoulder dislocation may injure the brachial plexus. Besides seizures, the nerves can also be damaged by anticonvulsive therapy. Muscle wasting following a seizure can misguide a clinician to investigate only neural or muscular pathologies. We report here an individual with epilepsy who was referred to us for electrodiagnostic evaluation of proximal muscle wasting related to a suspected proximal neuropathy...
November 4, 2017: Chinese Journal of Traumatology, Zhonghua Chuang Shang za Zhi
https://www.readbyqxmd.com/read/29201820/clinical-usefulness-of-x-ray-findings-for-non-specific-low-back-pain-in-korean-farmers-farm-study
#10
Eun Kyoung Kang, Hee-Won Park, Sung Hyun Kim, Sora Baek
Objective: To elucidate the association between non-specific low back pain (NSLBP) and spinal X-ray findings in Korean farmers: Farmers' Cohort for Agricultural Work-Related Musculoskeletal disorders (FARM) study. Methods: A total of 835 farmers (391 males, 444 females; mean age, 56.6±7.4 years) without red-flag signs of specific LBP were recruited. Presence of LBP more than one week or once a month with more than moderate degree of pain severity during the last year was assessed with a binary questionnaire (yes or no)...
October 2017: Annals of Rehabilitation Medicine
https://www.readbyqxmd.com/read/29196227/scaphoid-fractures-treated-with-a-volar-percutaneous-approach-analysis-and-results-in-92-cases
#11
G Luengo Alonso, V Jiménez Díaz, L Garcia Lamas, M A Porras Moreno, D Cecilia López
OBJECTIVE: Herbert type B1 and B2 scaphoid fractures can be treated by orthopaedic treatment or surgery. The aim of this study is to analyse results and complications of scaphoid waist fractures treated using the percutaneous volar approach. MATERIAL AND METHOD: We present a retrospective study of 92 patients, treated in our institution from 2006 to 2016 using a volar percutaneous fixation. Mean Follow-up was 16 months (range 12-48). Injuries were classified using Hebert's classification, including B1 and B2 fracture types; the other fracture types following this classification system were excluded...
November 28, 2017: Revista Española de Cirugía Ortopédica y Traumatología
https://www.readbyqxmd.com/read/29195556/immobilization-for-carbon-ion-beam-ablation-of-cardiac-structures-in-a-porcine-model
#12
Matthias Prall, Anna Eichhorn, Daniel Richter, H Immo Lehmann, Anna Constantinescu, Robert Kaderka, Patrick Lugenbiel, Dierk Thomas, Christoph Bert, Douglas L Packer, Marco Durante, Christian Graeff
INTRODUCTION: Whereas hadron therapy of static targets is clinically established, treatment of moving organs remains a challenge. One strategy is to minimize motion of surrounding tissue mechanically and to mitigate residual motion with an appropriate irradiation technique. In this technical note, we present and characterize such an immobilization technique for a novel noncancerous application: the irradiation of small targets in hearts with scanned carbon ion beams in a porcine model for elimination of arrhythmias...
November 2017: Physica Medica: PM
https://www.readbyqxmd.com/read/29188633/-advance-in-molecular-genetic-research-on-x-linked-syndromic-hearing-impairment
#13
Maomin Huang, Dingding Zhang
In addition to hearing impairment, syndromic hearing impairment is often accompanied by disorders of urinary, skeletal, muscular, nervous, and ocular systems. Genetic factors have shown to play an important role in the pathogenesis of deafness. Mutations of X-linked genes may cause syndromic hearing impairment. Gene mapping, linkage analysis and next-generation sequencing may facilitate delineation of the pathogenesis of X-linked syndromic hearing impairment. This article reviews recent progress in molecular genetic research on X-linked syndromic hearing impairment, which may shed light for the diagnosis and treatment of these diseases...
December 10, 2017: Zhonghua Yi Xue Yi Chuan Xue za Zhi, Zhonghua Yixue Yichuanxue Zazhi, Chinese Journal of Medical Genetics
https://www.readbyqxmd.com/read/29185281/ankylosing-spondylitis-and-neck-pain-mri-evidence-for-joint-and-entheses-inflammation-at-the-craniocervial-junction
#14
Cheri Korb, Abid Awisat, Doron Rimar, Itzhak Rosner, Arsen Schpigelman, Daniela Militianu, Gleb Slobodin
BACKGROUND: Magnetic resonance imaging (MRI), which has recently become the leading imaging modality in the study of ankylosing spondylitis (AS), has not been evaluated in the assessment of disease-specific changes at the craniocervical junction (CCJ) in patients with AS. OBJECTIVES: To describe the spectrum of active inflammatory lesions at the CCJ using MRI in a cohort of patients with AS and neck pain. METHODS: The study included 18 patients with AS presenting with neck pain and a control group of 9 fibromyalgia patients matched for age and levels of neck pain...
November 2017: Israel Medical Association Journal: IMAJ
https://www.readbyqxmd.com/read/29183860/anti-citrullinated-peptides-antibodies-in-systemic-sclerosis-meta-analysis-of-frequency-and-meaning
#15
Guillaume Laustriat, Adeline Ruyssen-Witrand, Arnaud Constantin, Thomas Barnetche, Daniel Adoue, Alain Cantagrel, Yannick Degboé
OBJECTIVES: Diagnosis of systemic sclerosis (SSc) is partially determined by the presence of specific auto-antibodies often associated with specific clinical features. Recent studies report the presence of ACPA in SSc. We aimed to evaluate the prevalence of ACPA in SSc, and to assess their influence on clinical presentation of SSc. METHODS: A systematic literature search was performed using PubMed and Cochrane databases' publications between 1999 and March 2017...
November 25, 2017: Joint, Bone, Spine: Revue du Rhumatisme
https://www.readbyqxmd.com/read/29181045/late-subclinical-hemolysis-and-long-term-outcomes-after-aortic-valve-replacement-with-on-x-mechanical-prostheses-a-preliminary-single-center-report
#16
Bartłomiej Perek, Sylwia Sławek, Agnieszka Malińska, Izabela Katyńska, Mateusz Puślecki, Bogumiła Szymak-Pawełczyk, Michał Nowicki, Marek Jemielity
Introduction: Aortic valve replacement (AVR) with a mechanical prosthesis is not free from late complications. Aim: To evaluate the prevalence of subclinical hemolysis after AVR with On-X prostheses and assess its impact on long-term outcomes. Material and methods: The prospective study included 84 consecutive patients aged 58.3 ±10.3 years who underwent AVR. They were retrospectively split into group H (n = 12; 14.3%) with prosthesis-related subclinical hemolysis and a control group (C; n = 72; 85...
September 2017: Kardiochirurgia i Torakochirurgia Polska, Polish Journal of Cardio-Thoracic Surgery
https://www.readbyqxmd.com/read/29179501/the-heterogeneous-ctv-ptv-margins-should-be-given-for-different-parts-of-tumors-during-tomotherapy
#17
Ying Tong, Guanzhong Gong, Jinhu Chen, Jie Lu, Tonghai Liu, Pinjing Cheng, Yong Yin
Objective: The purpose of this study was to evaluate CTV-PTV margins of tumors for tomotherapy. Methods: Setup errors were analyzed for 151 patients receiving helical tomotherapy treatment. 53 patients had head and neck tumors, 45 had thoracic tumors, 20 had abdominal tumors, and 33 had pelvic tumors. The setup errors were calculated in six directions, i.e. +X (left), -X (right), +Y (head), -Y (foot), +Z (ventral), and -Z (dorsal), after Megavoltage CT (MVCT) images were registered to simulation CT images...
October 24, 2017: Oncotarget
https://www.readbyqxmd.com/read/29164428/the-value-of-high-sensitivity-c-reactive-protein-in-hand-and-knee-radiographic-osteoarthritis-data-from-the-dong-gu-study
#18
Lihui Wen, Min-Ho Shin, Ji-Hyoun Kang, Yi-Rang Yim, Ji-Eun Kim, Jeong-Won Lee, Kyung-Eun Lee, Dong-Jin Park, Tae-Jong Kim, Yong-Wook Park, Sun-Seog Kweon, Young-Hoon Lee, Yong-Woon Yun, Shin-Seok Lee
Due to the inconsistent association between high-sensitivity C-reactive protein (hs-CRP) and osteoarthritis (OA), we evaluated the relationship between hs-CRP and various radiographic findings in older adults with OA. This cross-sectional study recruited 2376 participants from the population-based Dong-gu cohort. The scores of radiographic features in OA on X-rays of the knees and hands were computed using a semi-quantitative grading system. The hs-CRP levels were measured using a particle-enhanced immunonephelometry assay...
November 21, 2017: Clinical Rheumatology
https://www.readbyqxmd.com/read/29154310/tutorial-on-x-ray-photon-counting-detector-characterization
#19
Liqiang Ren, Bin Zheng, Hong Liu
BACKGROUND: Recent advances in photon counting detection technology have led to significant research interest in X-ray imaging. OBJECTIVE: As a tutorial level review, this paper covers a wide range of aspects related to X-ray photon counting detector characterization. METHODS: The tutorial begins with a detailed description of the working principle and operating modes of a pixelated X-ray photon counting detector with basic architecture and detection mechanism...
November 16, 2017: Journal of X-ray Science and Technology
https://www.readbyqxmd.com/read/29153522/short-communication-growth-of-dairy-isolates-of-geobacillus-thermoglucosidans-in-skim-milk-depends-on-lactose-degradation-products-supplied-by-anoxybacillus-flavithermus-as-secondary-species
#20
Y Zhao, M Kumar, M P M Caspers, M N Nierop Groot, J M B M van der Vossen, T Abee
Thermophilic bacilli such as Anoxybacillus and Geobacillus are important contaminants in dairy powder products. Remarkably, one of the common contaminants, Geobacillus thermoglucosidans, showed poor growth in skim milk, whereas significant growth of G. thermoglucosidans was observed in the presence of an Anoxybacillus flavithermus dairy isolate. In the present study, we investigated the underlying reason for this growth dependence of G. thermoglucosidans. Whole-genome sequences of 4 A. flavithermus strains and 4 G...
November 15, 2017: Journal of Dairy Science
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