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https://www.readbyqxmd.com/read/28823112/miniaturized-pulsed-laser-source-for-time-domain-diffuse-optics-routes-to-wearable-devices
#1
Laura Di Sieno, Jan Nissinen, Lauri Hallman, Edoardo Martinenghi, Davide Contini, Antonio Pifferi, Juha Kostamovaara, Alberto Dalla Mora
We validate a miniaturized pulsed laser source for use in time-domain (TD) diffuse optics, following rigorous and shared protocols for performance assessment of this class of devices. This compact source (12×6  mm2) has been previously developed for range finding applications and is able to provide short, high energy (∼100  ps, ∼0.5  nJ) optical pulses at up to 1 MHz repetition rate. Here, we start with a basic level laser characterization with an analysis of suitability of this laser for the diffuse optics application...
August 2017: Journal of Biomedical Optics
https://www.readbyqxmd.com/read/28823084/effects-of-a-novel-tungsten-impregnated-rubber-neck-shield-on-the-quality-of-cerebral-images-acquired-using-15-o-labeled-gas
#2
Kei Wagatsuma, Keiichi Oda, Kenta Miwa, Motoki Inaji, Muneyuki Sakata, Jun Toyohara, Kiichi Ishiwata, Masayuki Sasaki, Kenji Ishii
The present study aimed to validate the effects of a novel tungsten-impregnated rubber neck shield on the quality of phantom and clinical (15)O-labeled gas positron emission tomography (PET) images. Images were acquired in the presence or absence of a neck shield from a cylindrical phantom containing [(15)O]H2O (phantom study) and from three individuals using [(15)O]CO2, [(15)O]O2 and [(15)O]CO gas (clinical study). Data were acquired in three-dimensional (3D) mode using a Discovery PET/CT 710. Values for cerebral blood flow, cerebral blood volume, oxygen extraction fraction, and cerebral metabolic rate of oxygen with and without the neck shield were calculated from (15)O-labeled gas images...
August 19, 2017: Radiological Physics and Technology
https://www.readbyqxmd.com/read/28823061/validity-and-reliability-of-the-norwegian-translation-of-the-achilles-tendon-total-rupture-score
#3
Ståle Bergman Myhrvold, Øystein Sandnes, Sigurd Erik Hoelsbrekken
PURPOSE: Patient reported outcome measures (PROMs) are increasingly being used in clinical research. The Achilles tendon Total Rupture Score (ATRS) is a PROM designed to assess outcomes in patients with ruptures of the Achilles tendon. The aim of this study was to develop a Norwegian adaption of the ATRS and evaluate its validity and reliability. METHODS: The ATRS was translated into Norwegian in accordance with recommended guidelines. The study included 94 patients treated for Achilles tendon ruptures from January 2010 until February 2013, and the web-based questionnaires were administered twice...
August 19, 2017: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/28822995/determination-of-norflurazon-concentration-in-wheat-leaves-using-a-modified-quechers-method
#4
Kamil F Trzebuniak, Beata Mysliwa-Kurdziel
The aim of this analytical study was to develop and validate an easy-to-use method for measuring the actual level of norflurazon that accumulates in leaves. We amended the QuEChERS method, i.e. Quick, Easy, Cheap, Effective, Rugged, and Safe, which is widely used for pesticide and herbicide analysis in food, and usually combined with HPLC-MS detection. We adapted this method for the detection of norflurazon in leaves or leaf fragments and proposed a useful modification using of HPLC-UV detection. Reproducible retention times of 3...
August 19, 2017: Acta Biochimica Polonica
https://www.readbyqxmd.com/read/28822980/principal-component-analysis-of-socioeconomic-factors-and-their-association-with-malaria-and-arbovirus-risk-in-tanzania-a-sensitivity-analysis
#5
Esha Homenauth, Debora Kajeguka, Manisha A Kulkarni
Principal component analysis (PCA) is frequently adopted for creating socioeconomic proxies in order to investigate the independent effects of wealth on disease status. The guidelines and methods for the creation of these proxies are well described and validated. The Demographic and Health Survey, World Health Survey and the Living Standards Measurement Survey are examples of large data sets that use PCA to create wealth indices particularly in low and middle-income countries (LMIC), where quantifying wealth-disease associations is problematic due to the unavailability of reliable income and expenditure data...
August 19, 2017: Journal of Epidemiology and Community Health
https://www.readbyqxmd.com/read/28822918/screening-for-frailty-in-community-dwelling-elderly-subjects-predictive-validity-of-the-modified-sega-instrument
#6
N Oubaya, M Dramé, J-L Novella, E Quignard, C Cunin, D Jolly, R Mahmoudi
AIMS: To study the capacity of the SEGAm instrument to predict loss of independence among elderly community-dwelling subjects. METHODS: The study was performed in four French departments (Ardennes, Marne, Meurthe-et-Moselle, Meuse). Subjects aged 65 years or more, living at home, who could read and understand French, with a degree of autonomy corresponding to groups 5 or 6 in the AGGIR autonomy evaluation scale were included. Assessment included demographic characteristics, comprehensive geriatric assessment, and the SEGAm instrument at baseline...
August 4, 2017: Archives of Gerontology and Geriatrics
https://www.readbyqxmd.com/read/28822862/testing-the-performance-of-superhydrophobic-aluminum-surfaces
#7
F Javier Montes Ruiz-Cabello, Pablo F Ibáñez-Ibáñez, J Francisco Gómez-Lopera, José Martínez-Aroza, Miguel Cabrerizo-Vílchez, Miguel A Rodríguez-Valverde
The analysis of wetting properties of superhydrophobic surfaces may be a difficult task due to the restless behavior of drops on this type of surfaces and the limitations of goniometry for high contact angles. A method to validate the performance of superhydrophobic surfaces, rather than standard goniometry, is required. In this work, we used bouncing drop dynamics as a useful tool to predict the water repellency of different superhydrophobic surfaces. From bouncing drop experiments conducted over a wide range of superhydrophobic surfaces, we found that those surfaces with a proper roughness degree and homogeneous chemical composition showed higher water-repellency...
August 12, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28822785/next-generation-sequencing-based-detection-of-germline-copy-number-variations-in-brca1-brca2-validation-of-a-one-step-diagnostic-work-flow
#8
Ane Y Schmidt, Thomas V O Hansen, Lise B Ahlborn, Lars Jønson, Christina W Yde, Finn C Nielsen
Genetic testing of BRCA1/2 includes screening for single nucleotide variants and small indels as well as larger copy number variations (CNVs), primarily by Sanger sequencing and multiplex ligation-dependent probe amplification (MLPA). With the advent of next-generation sequencing (NGS), it has become feasible to provide CNV information as well as sequence data using a single platform. We report the use of NGS gene panel sequencing on the Illumina MiSeq platform and JSI SeqPilot SeqNext software to call germline CNVs in BRCA1 and BRCA2...
August 16, 2017: Journal of Molecular Diagnostics: JMD
https://www.readbyqxmd.com/read/28822756/differences-in-psychosocial-and-behavioral-variables-by-dietary-screening-tool-risk-category-in-older-adults
#9
Geoffrey W Greene, Ingrid Lofgren, Chelsea Paulin, Mary L Greaney, Phillip G Clark
BACKGROUND: The Dietary Screening Tool (DST) has been validated as a dietary screening instrument for older adults defining three categories of potential nutritional risk based on DST score cutoffs. Previous research has found that older adults classified as being "at risk" differed from those categorized as being "not at risk" for a limited number of health-related variables. The relationship between risk categories and a wide variety of variables has not yet been explored. This research will contribute to an increased understanding of clustering of multiple health concerns in this population...
August 17, 2017: Journal of the Academy of Nutrition and Dietetics
https://www.readbyqxmd.com/read/28822718/role-of-the-coagulation-system-in-genitourinary-cancers-review
#10
REVIEW
Axel John, Christian Gorzelanny, Alexander T Bauer, Stefan W Schneider, Christian Bolenz
Tumor progression is associated with aberrant hemostasis, and patients with malignant diseases have an elevated risk of developing thrombosis. A crosstalk among the vascular endothelium, components of the coagulation cascade, and cancer cells transforms the intravascular milieu to a prothrombotic, proinflammatory, and cell-adhesive state. We review the existing evidence on activation of the coagulation system and its implication in genitourinary malignancies and discuss the potential therapeutic benefit of antithrombotic agents...
July 26, 2017: Clinical Genitourinary Cancer
https://www.readbyqxmd.com/read/28822693/whisker-dependent-responsiveness-of-c57bl-6j-to-different-behavioral-test-paradigms
#11
Seenu Haridas, Ramya Ganapathi, Mayank Kumar, Kailash Manda
Whisker trimming is very common in C57BL/6J mice. Dewhiskering may lead to an alteration in the thalamocortical connectivity and relevant behavioral functions. Since C57BL/6J is a commonly used strain for neurobehavioral studies, it is important to examine how whisker dependent heterogeneity affects the internal validity of behavioral phenotypes. The present study aimed to investigate the responsiveness of mice to different behavioral test paradigms in the presence or absence of whiskers. We employed two models of whisker deprivation: Acute Whisker Desensitization (AWD) and Chronic Habitual Dewhiskering (CHD)...
August 16, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28822671/surgical-ultrasound-guided-carpal-tunnel-release
#12
T Apard, G Candelier
Ultrasound-guided surgery is a new trend stemming from the introduction of high-frequency linear probes and better quality screens. Surgical treatment of carpal tunnel syndrome is increasingly being performed under ultrasound guidance. Knowledge of musculoskeletal ultrasonography is obviously mandatory. Several types of cutting instruments (miniature knife, Gigli saw or hook) and surgical approaches (wrist or palm) have been described. Ultrasonography allows the wide-awake and local anesthesia with no tourniquet (WALANT) technique to be used in the context of ambulatory patient care...
August 16, 2017: Hand Surgery and Rehabilitation
https://www.readbyqxmd.com/read/28822548/short-communication-verifying-holstein-heifer-heart-girth-to-body-weight-prediction-equations
#13
A J Heinrichs, B S Heinrichs, C M Jones, P S Erickson, K F Kalscheur, T D Nennich, B J Heins, F C Cardoso
The estimation of Holstein heifer body weight (BW) from heart girth measurements is needed, as many farms do not have animal scales to make the management decisions that require BW. The correlation between heart girth and BW is known to vary with differing animal conformation. The previous equation to correlate the 2 measures for Holstein dairy heifers was done 25 yr ago. Data were derived from 6 US experiment stations that are part of Regional Research Project NC-2042: Management Systems to Improve the Economic and Environmental Sustainability of Dairy Enterprises...
August 16, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28822518/clinical-outcomes-of-patients-with-coronary-artery-disease-who-underwent-ffr-evaluation-of-intermediate-coronary-lesions-coffrs-study
#14
Srinivasa Prasad, S Harikrishnan, G Sanjay, S P Abhilash, S Bijulal, M Krishna Kumar, Jaganmohan Tharakan, V K Ajit Kumar
BACKGROUND: We undertook this study to validate the impact of FFR-guided coronary interventions among Indian patients, which is not readily available as of date. Our patients differ from their western counterparts, both in terms of risk profile (younger, more metabolic syndrome, lipid rich diet) as well as their coronary size. METHODS: We retrospectively evaluated 282 patients with intermediate stenosis in their coronary arteries, who underwent FFR to assess the functional severity of the lesion...
July 2017: Indian Heart Journal
https://www.readbyqxmd.com/read/28822392/optimal-modified-frailty-index-cutoff-in-older-gastrointestinal-cancer-patients
#15
Mary Garland, Fang-Chi Hsu, Perry Shen, Clancy J Clark
The newly characterized modified frailty index (mFI) is a robust predictor of postoperative outcomes for surgical patients. The present study investigates the optimal cutoff for mFI specifically in older gastrointestinal (GI) cancer patients undergoing surgery. All patients more than 60 years old who underwent surgery for a GI malignancy (esophagus, stomach, colon, rectum, pancreas, liver, and bile duct) were identified in the 2005 to 2012 National Surgical Quality Improvement Program, Participant Use Data File (NSQIP PUF)...
August 1, 2017: American Surgeon
https://www.readbyqxmd.com/read/28822347/screening-and-confirmation-of-steroids-and-nitroimidazoles-in-urine-blood-and-food-matrices-sample-preparation-methods-and-liquid-chromatography-tandem-mass-spectrometric-separations
#16
Ádám Tölgyesi, Enikő Barta, Andrea Simon, Thomas J McDonald, Virender K Sharma
Veterinary drugs containing synthetic anabolic steroid and nitroimidazole active agents are not allowed for their applications in livestock of the European Union (EU). This paper presents analyses of twelve selected steroids and six nitroimidazole antibiotics at low levels (1.56μg/L-4.95μg/L and 0.17μg/kg-2.14μg/kg, respectively) in body fluids and egg incurred samples. Analyses involved clean-up procedures, high performance liquid chromatography (HPLC) separation, and tandem mass spectrometric screening and confirmatory methods...
August 5, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28822297/validation-of-the-choking-risk-assessment-and-pneumonia-risk-assessment-for-adults-with-intellectual-and-developmental-disability-idd
#17
Justine Joan Sheppard, Georgia A Malandraki, Paula Pifer, Jill Cuff, Michelle Troche, Bronwyn Hemsley, Susan Balandin, Avinash Mishra, Roberta Hochman
BACKGROUND: Risk assessments are needed to identify adults with intellectual and developmental disability (IDD) at high risk of choking and pneumonia. AIM: To describe the development and validation of the Choking Risk Assessment (CRA) and the Pneumonia Risk Assessment (PRA) for adults with IDD. METHODS: Test items were identified through literature review and focus groups. Five-year retrospective chart reviews identified a positive choking group (PCG), a negative choking group (NCG), a positive pneumonia group (PPG), and a negative pneumonia group (NPG)...
August 16, 2017: Research in Developmental Disabilities
https://www.readbyqxmd.com/read/28822275/the-functionality-appreciation-scale-fas-development-and-psychometric-evaluation-in-u-s-community-women-and-men
#18
Jessica M Alleva, Tracy L Tylka, Ashley M Kroon Van Diest
Body functionality has been identified as an important dimension of body image that has the potential to be useful in the prevention and treatment of negative body image and in the enhancement of positive body image. Specifically, cultivating appreciation of body functionality may offset appearance concerns. However, a scale assessing this construct has yet to be developed. Therefore, we developed the Functionality Appreciation Scale (FAS) and examined its psychometric properties among three online community samples totalling 1042 women and men (ns=490 and 552, respectively)...
August 16, 2017: Body Image
https://www.readbyqxmd.com/read/28822263/the-most-important-factor-in-producing-clubhead-speed-in-golf
#19
Christopher Joyce
Substantial experiential research into x-factor, and to a lesser extent crunch-factor has been undertaken with the aim of increasing clubhead speed. However, a direct comparison of the golf swing kinematics associated with each 'factor' has not, and possible differences when using a driver compared to an iron. Fifteen low handicap male golfers who displayed a modern swing had their golf swing kinematic data measured when hitting their own driver and five-iron, using a 10-camera motion analysis system operating at 250Hz...
August 16, 2017: Human Movement Science
https://www.readbyqxmd.com/read/28822261/revelation-of-susceptibility-differences-due-to-hg-ii-accumulation-in-streptococcus-pyogenes-against-cx-agnps-and-cefixime-by-atomic-force-microscopy
#20
Wasia Rasheed, Muhammad Raza Shah, Samina Perveen, Shakil Ahmed, Sami Uzzaman
Solution based method for the formation of chemically modified silver nanoparticles (CX-AgNPs) using Cefixime as stabilizing and reducing agent was developed. The CX-AgNPs were characterized by AFM, UV-visible, FT-IR and MALDI-TOF MS. Bactericidal efficiency of CX-AgNPs and Cefixime against Streptococcus pyogenes was evaluated. Afterwards, susceptibility differences of Streptococcus pyogenes due to accumulation of Hg(II) against CX-AgNPs and Cefixime were estimated and validated through Atomic force microscopy...
August 16, 2017: Ecotoxicology and Environmental Safety
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