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https://www.readbyqxmd.com/read/28714767/comparison-of-methods-of-calculating-dynamic-strength-index
#1
Paul Comfort, Christopher Thomas, Thomas Dos'Santos, Paul A Jones, Timothy J Suchomel, John J McMahon
PURPOSE: To determine the reliability and variability of dynamic strength index (DSI) calculated from squat jump (SJ) (DSI-SJ) versus countermovement jump (CMJ) (DSI-CMJ) peak force (PF) and to compare DSI values between methods. METHODS: Male youth soccer and rugby league players (n = 27; age = 17.2 ± 0.7 years; height = 173.9 ± 5.7 cm; body mass = 71.1 ± 7.2 kg) performed 3 trials of the SJ, CMJ and isometric mid-thigh pull (IMTP), on two separate days. DSI was calculated by dividing the PF during each jump by the IMTP PF...
July 17, 2017: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/28697606/dysphonia-in-adults-with-developmental-stuttering-a-descriptive-study
#2
Anél Botha, Elizbé Ras, Shabnam Abdoola, Jeannie Van der Linde
BACKGROUND: Persons with stuttering (PWS) often present with other co-occurring conditions. The World Health Organization's (WHO) International Classification of Functioning, Disability and Health (ICF) proposes that it is important to understand the full burden of a health condition. A few studies have explored voice problems among PWS, and the characteristics of voices of PWS are relatively unknown. The importance of conducting future research has been emphasised. OBJECTIVES: This study aimed to describe the vocal characteristics of PWS...
June 26, 2017: South African Journal of Communication Disorders. die Suid-Afrikaanse Tydskrif Vir Kommunikasieafwykings
https://www.readbyqxmd.com/read/28662061/ultra-high-field-upper-extremity-peripheral-nerve-and-non-contrast-enhanced-vascular-imaging
#3
Shailesh B Raval, Cynthia A Britton, Tiejun Zhao, Narayanan Krishnamurthy, Tales Santini, Vijay S Gorantla, Tamer S Ibrahim
OBJECTIVE: The purpose of this study was to explore the efficacy of Ultra-high field [UHF] 7 Tesla [T] MRI as compared to 3T MRI in non-contrast enhanced [nCE] imaging of structural anatomy in the elbow, forearm, and hand [upper extremity]. MATERIALS AND METHOD: A wide range of sequences including T1 weighted [T1] volumetric interpolate breath-hold exam [VIBE], T2 weighted [T2] double-echo steady state [DESS], susceptibility weighted imaging [SWI], time-of-flight [TOF], diffusion tensor imaging [DTI], and diffusion spectrum imaging [DSI] were optimized and incorporated with a radiofrequency [RF] coil system composed of a transverse electromagnetic [TEM] transmit coil combined with an 8-channel receive-only array for 7T upper extremity [UE] imaging...
2017: PloS One
https://www.readbyqxmd.com/read/28655112/real-time-monitoring-of-the-degradation-of-cu-ii-edta-in-h2o2-uv-using-illumination-assisted-droplet-spray-ionization-mass-spectrometry
#4
Hong Zhang, Na Li, Yingying Wang, Dandan Zhao, Jing He, Hong You, Jie Jiang
Illumination-assisted droplet spray ionization (IA-DSI) mass spectrometry was developed for in situ analysis and real-time monitoring of photolysis reactions. In IA-DSI, a photolysis reaction occurs on a corner of a cover slip positioned in front of a mass spectrometer, and the generated reaction intermediates are ionized via the corner and are directed to the inlet and analyzed by a mass spectrometer. IA-DSI is contaminant-free, low-cost and simple, and was demonstrated for in situ analysis and real-time monitoring of the degradation of Cu(II)-EDTA in H2O2/UV...
June 19, 2017: Chemosphere
https://www.readbyqxmd.com/read/28652965/a-protocol-for-manual-segmentation-of-medial-temporal-lobe-subregions-in-7%C3%A2-tesla-mri
#5
D Berron, P Vieweg, A Hochkeppler, J B Pluta, S-L Ding, A Maass, A Luther, L Xie, S R Das, D A Wolk, T Wolbers, P A Yushkevich, E Düzel, L E M Wisse
Recent advances in MRI and increasing knowledge on the characterization and anatomical variability of medial temporal lobe (MTL) anatomy have paved the way for more specific subdivisions of the MTL in humans. In addition, recent studies suggest that early changes in many neurodegenerative and neuropsychiatric diseases are better detected in smaller subregions of the MTL rather than with whole structure analyses. Here, we developed a new protocol using 7 Tesla (T) MRI incorporating novel anatomical findings for the manual segmentation of entorhinal cortex (ErC), perirhinal cortex (PrC; divided into area 35 and 36), parahippocampal cortex (PhC), and hippocampus; which includes the subfields subiculum (Sub), CA1, CA2, as well as CA3 and dentate gyrus (DG) which are separated by the endfolial pathway covering most of the long axis of the hippocampus...
2017: NeuroImage: Clinical
https://www.readbyqxmd.com/read/28604372/adaptive-region-growing-with-maximum-curvature-strategy-for-tumor-segmentation-in-18-f-fdg-pet
#6
Shan Tan, Laquan Li, Wookjin Choi, Min Kyu Kang, Warren D D'Souza, Wei Lu
Accurate tumor segmentation in PET is crucial in many oncology applications. We developed an adaptive region-growing (ARG) algorithm with a maximum curvature strategy (ARG_MC) for tumor segmentation in PET. The ARG_MC repeatedly applied a confidence connected region-growing algorithm with increasing relaxing factor f. The optimal relaxing factor (ORF) was then determined at the transition point on the f-volume curve, where the volume just grew from the tumor into the surrounding normal tissues. The ARG_MC along with five widely used algorithms were tested on a phantom with 6 spheres at different signal to background ratios and on two clinic datasets including 20 patients with esophageal cancer and 11 patients with non-Hodgkin lymphoma (NHL)...
July 7, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/28603997/inhibition-of-human-ugt1a1-mediated-bilirubin-glucuronidation-by-polyphenolic-acids-impact-safety-of-popular-salvianolic-acid-a-b-containing-drugs-and-herbal-products
#7
Guo Ma, Ying Zhang, Wenyan Chen, Zhifang Tang, Xiaoming Xin, Ping Yang, Xiaoqin Liu, Weimin Cai, Ming Hu
Bilirubin-related adverse reactions (ADR, e.g., jaundice and hyperbilirubinemia) induced by herbs rich in certain polyphenolic acids are widely reported. However, the causes and the mechanisms underlying these ADR are not well understood. The purpose of this article is to determine the mechanism by which certain polyphenolic acids inhibit UGT1A1-mediated bilirubin glucuronidation, leading to jaundice or hyperbilirubinemia. We investigated in vitro inhibitory effects on bilirubin glucuronidation of salvianolic acid A (SAA), salvianolic acid B (SAB), danshensu (DSS), protocatechuic aldehyde (PA), and rosmarinic acid (RA), as well as two Salvia miltiorrhiza injections (DSI and CDI) rich in polyphenolic acids...
June 22, 2017: Molecular Pharmaceutics
https://www.readbyqxmd.com/read/28594880/application-of-the-3d-slicer-chest-imaging-platform-segmentation-algorithm-for-large-lung-nodule-delineation
#8
Stephen S F Yip, Chintan Parmar, Daniel Blezek, Raul San Jose Estepar, Steve Pieper, John Kim, Hugo J W L Aerts
PURPOSE: Accurate segmentation of lung nodules is crucial in the development of imaging biomarkers for predicting malignancy of the nodules. Manual segmentation is time consuming and affected by inter-observer variability. We evaluated the robustness and accuracy of a publically available semiautomatic segmentation algorithm that is implemented in the 3D Slicer Chest Imaging Platform (CIP) and compared it with the performance of manual segmentation. METHODS: CT images of 354 manually segmented nodules were downloaded from the LIDC database...
2017: PloS One
https://www.readbyqxmd.com/read/28589958/astronomical-pacing-of-the-global-silica-cycle-recorded-in-mesozoic-bedded-cherts
#9
Masayuki Ikeda, Ryuji Tada, Kazumi Ozaki
The global silica cycle is an important component of the long-term climate system, yet its controlling factors are largely uncertain due to poorly constrained proxy records. Here we present a ∼70 Myr-long record of early Mesozoic biogenic silica (BSi) flux from radiolarian chert in Japan. Average low-mid-latitude BSi burial flux in the superocean Panthalassa is ∼90% of that of the modern global ocean and relative amplitude varied by ∼20-50% over the 100 kyr to 30 Myr orbital cycles during the early Mesozoic...
June 7, 2017: Nature Communications
https://www.readbyqxmd.com/read/28573598/ecological-dissimilarity-among-land-use-land-cover-types-improves-a-heterogeneity-index-for-predicting-biodiversity-in-agricultural-landscapes
#10
Akira Yoshioka, Keita Fukasawa, Yoshio Mishima, Keiko Sasaki, Taku Kadoya
Land-use/land-cover heterogeneity is among the most important factors influencing biodiversity in agricultural landscapes and is the key to the conservation of multi-habitat dwellers that use both terrestrial and aquatic habitats. Heterogeneity indices based on land-use/land-cover maps typically do not integrate ecological dissimilarity between land-use/land-cover types. Here, we applied the concept of functional diversity to an existing land-use/land-cover diversity index (Satoyama index) to incorporate ecological dissimilarity and proposed a new index called the dissimilarity-based Satoyama index (DSI)...
June 1, 2017: Ambio
https://www.readbyqxmd.com/read/28557301/factors-influencing-the-quality-of-life-of-hemodialysis-patients-according-to-symptom-cluster
#11
Hye Yeung Shim, Mi-Kyoung Cho
AIM AND OBJECTIVES: To identify the characteristics in each symptom cluster and factors influencing the quality of life of hemodialysis patients in Korea according to cluster. BACKGROUND: Despite developments in renal replacement therapy, hemodialysis still restricts the activities of daily living due to pain and impairs physical functioning induced by the disease and its complications. DESIGN: Descriptive survey. 230 dialysis patients aged >18 years...
May 30, 2017: Journal of Clinical Nursing
https://www.readbyqxmd.com/read/28551986/fate-and-effect-of-dissolved-silicon-within-wastewater-treatment-effluent
#12
Timothy J Maguire, Robinson W Fulweiler
In large rivers, the ratios of silicon (Si)/nitrogen (N)/phosphorus (P) have changed dramatically as anthropogenic additions of N or P are not matched by Si. Wastewater effluent is a recognized source of N and P to coastal environments. Few previous studies, however, have examined the Si load of a large wastewater plant's effluent or the molar ratios of Si/N and Si/P in effluent. We examine the annual flux of dissolved silicon (DSi) carried by effluent from the second largest treatment plant by flow in the United States (Deer Island Treatment Plant, DITP, Boston, MA)...
June 13, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/28539180/visual-and-hearing-impairment-and-retirement-in-older-adults-a-population-based-cohort-study
#13
Bamini Gopinath, Gerald Liew, George Burlutsky, Catherine M McMahon, Paul Mitchell
OBJECTIVE: Impaired vision and hearing are common among older adults and have been shown to reduce functional independence and to reduce quality of life. This cohort study investigated the cross-sectional and temporal associations between objectively measured dual sensory impairment (DSI) and retirement from employment. STUDY DESIGN: 2409 Blue Mountains Eye Study participants aged 55+ years at baseline were included for analyses. MAIN OUTCOME MEASURES: Visual impairment was defined as visual acuity less than 20/40 (better eye), and hearing impairment as average pure-tone air conduction threshold >25dB HL (500-4000Hz, better ear)...
June 2017: Maturitas
https://www.readbyqxmd.com/read/28537462/symptom-prevalence-and-the-negative-emotional-states-in-end-stage-renal-disease-patients-with-or-without-renal-replacement-therapy-a-cross-sectional-analysis
#14
Wan Zul Haikal Wan Zukiman, Hayati Yaakup, Nor Fadhlina Zakaria, Shamsul Azhar Bin Shah
BACKGROUND: Limited comparative data are available on the symptom severity and burden of dialyzed versus nondialyzed end-stage renal disease (ESRD) patients and their association with negative emotional states. OBJECTIVE: To investigate the prevalence of symptom burden and severity of ESRD patients and correlate the findings with their psychological status. METHODS: This was a cross-sectional study of dialyzed (N = 87) and nondialyzed (N = 100) patients...
May 24, 2017: Journal of Palliative Medicine
https://www.readbyqxmd.com/read/28516296/substrate-coated-illumination-droplet-spray-ionization-real-time-monitoring-of-photocatalytic-reactions
#15
Hong Zhang, Na Li, Dandan Zhao, Jie Jiang, Hong You
Real-time monitoring of photocatalytic reactions facilitates the elucidation of the mechanisms of the reactions. However, suitable tools for real-time monitoring are lacking. Herein, a novel method based on droplet spray ionization named substrate-coated illumination droplet spray ionization (SCI-DSI) for direct analysis of photocatalytic reaction solution is reported. SCI-DSI addresses many of the analytical limitations of electrospray ionization (ESI) for analysis of photocatalytic-reaction intermediates, and has potential for both in situ analysis and real-time monitoring of photocatalytic reactions...
May 17, 2017: Journal of the American Society for Mass Spectrometry
https://www.readbyqxmd.com/read/28500597/blood-pressure-monitoring-using-radio-telemetry-method-in-mice
#16
Yu Wang, Sean E Thatcher, Lisa A Cassis
The TA11PA-C10 implantable transmitter (Data Sciences International, DSI) is designed to measure blood pressure (BP) and activity in freely moving laboratory mice. The fluid filled catheter is placed in the free flowing blood of the systemic artery (inserted into the left carotid artery and extended into the aorta), and the transmitter body is placed in a benign location for long-term biocompatibility. The transmitter can be used to monitor BP in mice (as small as 17 g) under normal physiological and unrestricted conditions 24 h a day while remaining free from stress associated with human interaction...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28494786/compositionally-and-functionally-distinct-sinus-microbiota-in-chronic-rhinosinusitis-patients-have-immunological-and-clinically-divergent-consequences
#17
Emily K Cope, Andrew N Goldberg, Steven D Pletcher, Susan V Lynch
BACKGROUND: Chronic rhinosinusitis (CRS) is a heterogeneous disease characterized by persistent sinonasal inflammation and sinus microbiome dysbiosis. The basis of this heterogeneity is poorly understood. We sought to address the hypothesis that a limited number of compositionally distinct pathogenic bacterial microbiota exist in CRS patients and invoke discrete immune responses and clinical phenotypes in CRS patients. RESULTS: Sinus brushings from patients with CRS (n = 59) and healthy individuals (n = 10) collected during endoscopic sinus surgery were analyzed using 16S rRNA gene sequencing, predicted metagenomics, and RNA profiling of the mucosal immune response...
May 12, 2017: Microbiome
https://www.readbyqxmd.com/read/28478912/quality-assurance-of-radiotherapy-in-the-ongoing-eortc-1219-dahanca-29-trial-for-hpv-p16-negative-squamous-cell-carcinoma-of-the-head-and-neck-results-of-the-benchmark-case-procedure
#18
Melissa Christiaens, Sandra Collette, Jens Overgaard, Vincent Gregoire, Joanna Kazmierska, Pierre Castadot, Jordi Giralt, Warren Grant, Milan Tomsej, Raquel Bar-Deroma, Angelo F Monti, Coen Wilhelm Hurkmans, Damien Charles Weber
BACKGROUND AND PURPOSE: The phase III EORTC 1219-DAHANCA 29 intergroup trial evaluates the influence of nimorazole in patients with locally advanced head and neck cancer when treated with accelerated radiotherapy (RT) in combination with chemotherapy. This article describes the results of the RT Benchmark Case (BC) performed before patient inclusion. MATERIALS AND METHODS: The participating centers were asked to perform a 2-step BC, consisting of (1) a delineation and (2) a planning exercise according to the protocol guidelines...
May 4, 2017: Radiotherapy and Oncology: Journal of the European Society for Therapeutic Radiology and Oncology
https://www.readbyqxmd.com/read/28471526/preterm-infants-at-discharge-nap-polysomnography-versus-24-hour-oximetry
#19
Tamsin Roberts, Angela Campbell, Peter Larsen, Dawn Elder
AIM: This study aimed to determine whether measures of intermittent hypoxia derived from 24-hour oximetry correlate with measures of apnoea derived from modified nap polysomnography undertaken for preterm infants before discharge. METHODS: Infants born ≤32 weeks gestation were recruited from the Neonatal Intensive Care Unit, and had a modified polysomnography to assess their respiratory stability once they were ≥35 weeks postmenstrual age. Infants were defined as unstable if they had more than 10 obstructive events per hour or any apnoea of > 20 seconds in length...
May 4, 2017: Acta Paediatrica
https://www.readbyqxmd.com/read/28465251/danshen-injection-prevents-heart-failure-by-attenuating-post-infarct-remodeling
#20
Lingyan Wang, Jiahui Yu, Patrick Asare Fordjour, Xiaoxue Xing, Hui Gao, Yanyan Li, Lingyan Li, Yan Zhu, Xiumei Gao, Guanwei Fan
ETHNOPHARMACOLOGICAL RELEVANCE: Danshen Injection (DSI) is a traditional Chinese medicine extracted from Danshen, prepared from the dried root and rhizome of Salvia miltiorrhiza Bunge. Danshen is an ancient antipyretic traditional Chinese medicine which is mostly used to improve blood circulation and dispel blood stasis. Danshen decoction or liquor-fried Danshen (with grain-based liquor) which is cool in nature is traditionally used to 'cool the blood' and reduce the swelling of sores and abscesses...
April 29, 2017: Journal of Ethnopharmacology
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