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https://www.readbyqxmd.com/read/28538801/effects-of-hyperbaric-oxygen-and-nerve-growth-factor-on-the-long-term-neural-behavior-of-neonatal-rats-with-hypoxic-ischemic-brain-damage
#1
Lixia Wei, Qing Ren, Yongjun Zhang, Jiwen Wang
Purpose: To evaluate the effects of HBO (Hyperbaric oxygen) and NGF (Nerve growth factor) on the long-term neural behavior of neonatal rats with HIBD (Neonatal hypoxic ischemic brain damage). Methods: The HIBD model was produced by ligating the right common carotid artery of 7 days old SD (Sprague-Dawley) rats followed by 8% O2 + 92% N2 for 2h. Totally 40 rats were randomly divided into 5 groups including sham-operated group, HIBD control group, HBO treated group, NGF treated group and NGF + HBO treated group...
April 2017: Acta Cirúrgica Brasileira
https://www.readbyqxmd.com/read/28538757/brazilian-cross-cultural-adaptation-and-validation-of-the-list-of-threatening-events-questionnaire-lte-q
#2
Patrícia B de Abreu, Hugo Cogo-Moreira, Regina A Pose, Ronaldo Laranjeira, Raul Caetano, Carolina M Gaya, Clarice S Madruga
Objective: To perform a construct validation of the List of Threatening Events Questionnaire (LTE-Q), as well as convergence validation by identifying its association with drug use in a sample of the Brazilian population. Methods: This is a secondary analysis of the Second Brazilian National Alcohol and Drugs Survey (II BNADS), which used a cross-cultural adaptation of the LTE-Q in a probabilistic sample of 4,607 participants aged 14 years and older. Latent class analysis was used to validate the latent trait adversity (which considered the number of events from the list of 12 item in the LTE experienced by the respondent in the previous year) and logistic regression was performed to find its association with binge drinking and cocaine use...
May 22, 2017: Revista Brasileira de Psiquiatria
https://www.readbyqxmd.com/read/28538740/periodontal-status-during-pregnancy-and-postpartum
#3
Maximino González-Jaranay, Luís Téllez, Antonio Roa-López, Gerardo Gómez-Moreno, Gerardo Moreu
OBJECTIVES: Different studies have documented an association between periodontal disease and low birth-weight delivery. Hence, knowledge of periodontal status during pregnancy and postpartum is important in order to reduce the risks of both diseases. This study aimed to analyze periodontal status at successive stages of pregnancy and 3-6 weeks postpartum in women with initial periodontal alterations. MATERIALS AND METHODS: Ninety-six pregnant women were examined at 8-10 weeks (pregnancy diagnosis, baseline), 21-23 weeks and 34-36 weeks of gestation and at 40 days postpartum to record plaque scores, clinically assessed gingival inflammation and probing depth (mean depth and % sites with depth >3 mm)...
2017: PloS One
https://www.readbyqxmd.com/read/28538708/accuracy-in-wrist-worn-sensor-based-measurements-of-heart-rate-and-energy-expenditure-in-a-diverse-cohort
#4
Anna Shcherbina, C Mikael Mattsson, Daryl Waggott, Heidi Salisbury, Jeffrey W Christle, Trevor Hastie, Matthew T Wheeler, Euan A Ashley
The ability to measure physical activity through wrist-worn devices provides an opportunity for cardiovascular medicine. However, the accuracy of commercial devices is largely unknown. The aim of this work is to assess the accuracy of seven commercially available wrist-worn devices in estimating heart rate (HR) and energy expenditure (EE) and to propose a wearable sensor evaluation framework. We evaluated the Apple Watch, Basis Peak, Fitbit Surge, Microsoft Band, Mio Alpha 2, PulseOn, and Samsung Gear S2. Participants wore devices while being simultaneously assessed with continuous telemetry and indirect calorimetry while sitting, walking, running, and cycling...
May 24, 2017: Journal of Personalized Medicine
https://www.readbyqxmd.com/read/28538704/climate-change-and-its-impact-on-the-yield-of-major-food-crops-evidence-from-pakistan
#5
Sajjad Ali, Ying Liu, Muhammad Ishaq, Tariq Shah, Abdullah, Aasir Ilyas, Izhar Ud Din
Pakistan is vulnerable to climate change, and extreme climatic conditions are threatening food security. This study examines the effects of climate change (e.g., maximum temperature, minimum temperature, rainfall, relative humidity, and the sunshine) on the major crops of Pakistan (e.g., wheat, rice, maize, and sugarcane). The methods of feasible generalized least square (FGLS) and heteroscedasticity and autocorrelation (HAC) consistent standard error were employed using time series data for the period 1989 to 2015...
May 24, 2017: Foods (Basel, Switzerland)
https://www.readbyqxmd.com/read/28538695/a-new-calibration-method-for-commercial-rgb-d-sensors
#6
Walid Darwish, Shenjun Tang, Wenbin Li, Wu Chen
Commercial RGB-D sensors such as Kinect and Structure Sensors have been widely used in the game industry, where geometric fidelity is not of utmost importance. For applications in which high quality 3D is required, i.e., 3D building models of centimeter‑level accuracy, accurate and reliable calibrations of these sensors are required. This paper presents a new model for calibrating the depth measurements of RGB-D sensors based on the structured light concept. Additionally, a new automatic method is proposed for the calibration of all RGB-D parameters, including internal calibration parameters for all cameras, the baseline between the infrared and RGB cameras, and the depth error model...
May 24, 2017: Sensors
https://www.readbyqxmd.com/read/28538679/a-simple-drain-current-model-for-mos-transistors-with-the-lorentz-force-effect
#7
Hwang-Cherng Chow, Prasenjit Chatterjee, Wu-Shiung Feng
A novel concept of drain current modelling in rectangular normal MOS transistors with the Lorentz force has been proposed for the first time. The single-drain MOS transistor is qualified as a magnetic sensor. To create the Lorentz force, a DC loop current is applied through an on-chip metal loop around the device, and the relation between the applied loop current and the created magnetic field is assumed to be linear in nature. The drain current of the MOS transistor is reduced with the applied Lorentz force from both directions...
May 24, 2017: Sensors
https://www.readbyqxmd.com/read/28538668/biomechanical-modeling-of-pterygium-radiation-surgery-a-retrospective-case-study
#8
Bojan Pajic, Daniel M Aebersold, Andreas Eggspuehler, Frederik R Theler, Harald P Studer
Pterygium is a vascularized, invasive transformation on the anterior corneal surface that can be treated by Strontium-/Yttrium90 beta irradiation. Finite element modeling was used to analyze the biomechanical effects governing the treatment, and to help understand clinically observed changes in corneal astigmatism. Results suggested that irradiation-induced pulling forces on the anterior corneal surface can cause astigmatism, as well as central corneal flattening. Finite element modeling of corneal biomechanics closely predicted the postoperative corneal surface (astigmatism error -0...
May 24, 2017: Sensors
https://www.readbyqxmd.com/read/28538659/the-effects-of-dithiothreitol-on-dna
#9
Søren Fjelstrup, Marie Bech Andersen, Jonas Thomsen, Jing Wang, Magnus Stougaard, Finn Skou Pedersen, Yi-Ping Ho, Marianne Smedegaard Hede, Birgitta Ruth Knudsen
With the novel possibilities for detecting molecules of interest with extreme sensitivity also comes the risk of encountering hitherto negligible sources of error. In life science, such sources of error might be the broad variety of additives such as dithiothreitol (DTT) used to preserve enzyme stability during in vitro reactions. Using two different assays that can sense strand interruptions in double stranded DNA, we here show that DTT is able to introduce nicks in the DNA backbone. DTT was furthermore shown to facilitate the immobilization of fluorescent DNA on an NHS-ester functionalized glass surface...
May 24, 2017: Sensors
https://www.readbyqxmd.com/read/28538439/nonlinear-imputation-of-pao2-fio2-from-spo2-fio2-among-mechanically-ventilated-patients-in-the-icu-a-prospective-observational-study
#10
Samuel M Brown, Abhijit Duggal, Peter C Hou, Mark Tidswell, Akram Khan, Matthew Exline, Pauline K Park, David A Schoenfeld, Ming Liu, Colin K Grissom, Marc Moss, Todd W Rice, Catherine L Hough, Emanuel Rivers, B Taylor Thompson, Roy G Brower
OBJECTIVES: In the contemporary ICU, mechanically ventilated patients may not have arterial blood gas measurements available at relevant timepoints. Severity criteria often depend on arterial blood gas results. Retrospective studies suggest that nonlinear imputation of PaO2/FIO2 from SpO2/FIO2 is accurate, but this has not been established prospectively among mechanically ventilated ICU patients. The objective was to validate the superiority of nonlinear imputation of PaO2/FIO2 among mechanically ventilated patients and understand what factors influence the accuracy of imputation...
May 22, 2017: Critical Care Medicine
https://www.readbyqxmd.com/read/28538369/significant-reduction-of-fluoroscopy-repetition-with-lumbar-localization-system-in-minimally-invasive-spine-surgery-a-prospective-study
#11
Guoxin Fan, Hailong Zhang, Xin Gu, Chuanfeng Wang, Xiaofei Guan, Yunshan Fan, Shisheng He
The conventional location methods for minimally invasive spinal surgery (MISS) were mainly based on repeated fluoroscopy in a trial-and-error manner preoperatively and intraoperatively. Localization system mainly consisted of preoperative applied radiopaque frame and intraoperative guiding device, which has the potential to minimize fluoroscopy repetition in MISS. The study aimed to evaluate the efficacy of a novel lumbar localization system in reducing radiation exposure to patients.Included patients underwent minimally invasive transforaminal lumbar interbody fusion (MISTLIF) or percutaneous transforaminal endoscopic discectomy (PTED)...
May 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28538359/medication-errors
#12
Michael R Cohen
No abstract text is available yet for this article.
June 2017: Nursing
https://www.readbyqxmd.com/read/28538337/developing-a-logarithmic-chinese-reading-acuity-chart
#13
Qi-Ming Han, Lin-Juan Cong, Cong Yu, Lei Liu
PURPOSE: An individual's reading ability cannot be reliably predicted from his/her letter acuity, contrast sensitivity, and visual field extent. We developed a set of Chinese reading acuity charts (C-READ) to assess the reading ability of Chinese readers, based on the collective wisdom of previously published reading acuity charts, especially the MNRead and the Radner Reading Charts. METHODS: The C-READ consists of three charts. Each consists sixteen 12-character simplified Chinese sentences crafted from first- to third-grade textbooks...
June 2017: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/28538335/bigaussian-wavefront-model-for-normal-and-keratoconic-eyes
#14
Jos J Rozema, Pablo Rodríguez, Rafael Navarro, Carina Koppen
PURPOSE: To report bigaussian multivariate wavefront models capable of stochastically generating an unlimited amount of plausible wavefront data for either normal or keratoconic eyes. METHODS: The models use centroid wavefront data measured previously with an iTrace in 330 healthy right eyes and 122 keratoconic right eyes. These centroids were fitted to an 11th-order Zernike series, followed by principal component analysis to reduce dimensionality and remove correlations...
June 2017: Optometry and Vision Science: Official Publication of the American Academy of Optometry
https://www.readbyqxmd.com/read/28538191/assessment-of-hyperspectral-imaging-system-for-colour-measurement
#15
Damian K Chlebda, Anna Rogulska, Tomasz Łojewski
A novel technique of reflective spectroscopy, hyperspectral imaging (HSI), was used to develop a methodology for colour measurement, which is very important in the field of art conservation - especially in the analysis of documents. The major focus of this work is an examination of the repeatability and reproducibility of colour parameters calculated from the hyperspectral data. The study was performed with commercial colour standards and pen ink lines, corresponding to large and small-scale colour areas, respectively...
May 17, 2017: Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy
https://www.readbyqxmd.com/read/28538056/engaging-all-employees-in-efforts-to-achieve-high-reliability
#16
Anne Marie Benedicto
DRAMATIC AND NUMEROUS advances in science, technology, and medicine provide new opportunities to keep people healthy as well as to diagnose, treat, and cure disease. Unfortunately, increasing complexity increases opportunities for mistakes and errors, particularly in healthcare organizations as they struggle to prevent patient harm (). Safety problems persist and harm to patients continues despite widespread attention to the need for improvement ().An engaged and empowered workforce is critical to improving the patient experience, improving health outcomes, and correcting unsafe conditions ()...
July 2017: Frontiers of Health Services Management
https://www.readbyqxmd.com/read/28538053/achieving-high-reliability-through-cultural-mindfulness
#17
Patrick J Cawley, Danielle B Scheurer
Healthcare has enthusiastically embraced quality and safety improvement. Yet, more radical transformation is clearly needed to make a more significant impact on error reduction and to ensure consistent quality. This need for transformation is leading healthcare to examine how other industries, such as nuclear power and aviation, improve safety to achieve a high degree of reliability and avoid potential catastrophes. Research has shown that successful organizations in high-risk industries achieve high reliability by maintaining a cultural mindfulness that allows them to continually reinvent themselves in complex environments...
July 2017: Frontiers of Health Services Management
https://www.readbyqxmd.com/read/28537973/identifying-variability-in-mental-models-within-and-between-disciplines-caring-for-the-cardiac-surgical-patient
#18
Evans K H Brown, Kathleen A Harder, Ioanna Apostolidou, Joyce A Wahr, Douglas C Shook, R Saeid Farivar, Tjorvi E Perry, Mojca R Konia
BACKGROUND: The cardiac operating room is a complex environment requiring efficient and effective communication between multiple disciplines. The objectives of this study were to identify and rank critical time points during the perioperative care of cardiac surgical patients, and to assess variability in responses, as a correlate of a shared mental model, regarding the importance of these time points between and within disciplines. METHODS: Using Delphi technique methodology, panelists from 3 institutions were tasked with developing a list of critical time points, which were subsequently assigned to pause point (PP) categories...
May 19, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28537971/reliability-of-point-of-care-hematocrit-measurement-during-liver-transplantation
#19
Won Ho Kim, Hyung-Chul Lee, Ho-Geol Ryu, Eun-Jin Chung, Borim Kim, Hoiin Jung, Chul-Woo Jung
BACKGROUND: Although point-of-care (POC) analyzers are commonly used during liver transplantation (LT), the accuracy of hematocrit measurement using a POC analyzer has not been evaluated. In this retrospective observational study, we aimed to evaluate the accuracy of hematocrit measurement using a POC analyzer and identify potential contributors to the measurement error and their influence on mistransfusion during LT. METHODS: We retrospectively collected 6461 pairs of simultaneous intraoperative hematocrit measurements using POC analyzers and laboratory devices during LTs in 901 patients...
May 19, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28537789/design-and-validation-of-a-low-cost-telepathology-system
#20
Bernardo Meléndez-Álvarez, Omar Robayo, Vicente Gil-Guillén, María Carratalá-Munuera
OBJECTIVE: This work sought to evaluate the precision and repeatability of a telepathology prototype based on open software and hardware. MATERIALS AND METHODS: A prototype was designed with application in telepathology and telemicroscopy. Accuracy and prototype precision were evaluated by calculating the mean absolute error and the intraclass and repeatability correlation coefficients for a series of 190 displacements at 10, 25, 50, 75, and 100 μm. RESULTS AND CONCLUSIONS: This work developed a low-cost prototype that is accessible, easily reproducible, implementable, and scalable; based on the use of technology created under principles of open software and hardware...
May 24, 2017: Telemedicine Journal and E-health: the Official Journal of the American Telemedicine Association
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