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https://www.readbyqxmd.com/read/28096741/a-day-in-the-life-of-third-year-medical-students-using-an-ethnographic-method-to-understand-information-seeking-and-use
#1
Andrea B Twiss-Brooks, Ricardo Andrade, Michelle B Bass, Barbara Kern, Jonna Peterson, Debra A Werner
OBJECTIVE: The authors undertook this project to learn how third-year medical students seek and use information in the course of daily activities, especially activities conducted in clinical settings in a variety of institutions. METHODS: We recruited sixty-eight third-year undergraduate medical school students to create a mapping diary of a day that included clinical activities. We conducted semi-structured interviews based on the mapping diaries. Using content and thematic analyses of the resulting interview transcripts, we developed an ethnographic case study for each participant...
January 2017: Journal of the Medical Library Association: JMLA
https://www.readbyqxmd.com/read/28096066/-happiness-inventors-informing-positive-computing-technologies-through-participatory-design-with-children
#2
Svetlana Yarosh, Stephen Matthew Schueller
BACKGROUND: Positive psychological interventions for children have typically focused on direct adaptations of interventions developed for adults. As the community moves toward designing positive computing technologies to support child well-being, it is important to use a more participatory process that directly engages children's voices. OBJECTIVE: Our objectives were, through a participatory design study, to understand children's interpretations of positive psychology concepts, as well as their perspectives on technologies that are best suited to enhance their engagement with practice of well-being skills...
January 17, 2017: Journal of Medical Internet Research
https://www.readbyqxmd.com/read/28060526/effects-of-dual-monitor-computer-work-versus-laptop-work-on-cervical-muscular-and-proprioceptive-characteristics-of-males-and-females
#3
Amanda M Farias Zuniga, Julie N Côté
OBJECTIVE: The effects of performing a 90-minute computer task with a laptop versus a dual monitor desktop workstation were investigated in healthy young male and female adults. BACKGROUND: Work-related musculoskeletal disorders are common among computer (especially female) users. Laptops have surpassed desktop computer sales, and working with multiple monitors has also become popular. However, few studies have provided objective evidence on how they affect the musculoskeletal system in both genders...
December 1, 2016: Human Factors
https://www.readbyqxmd.com/read/28047164/su-f-t-336-a-quick-auto-planning-qap-method-for-patient-intensity-modulated-radiotherapy-imrt
#4
J Peng, Z Zhang, J Wang, J Xie, S Lu, J Zhao, W Hu
PURPOSE: The aim of this study is to develop a quick auto-planning system that permits fast patient IMRT planning with conformal dose to the target without manual field alignment and time-consuming dose distribution optimization. METHODS: The planning target volume (PTV) of the source and the target patient were projected to the iso-center plane in certain beameye- view directions to derive the 2D projected shapes. Assuming the target interior was isotropic for each beam direction boundary analysis under polar coordinate was performed to map the source shape boundary to the target shape boundary to derive the source-to-target shape mapping function...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28047124/su-f-t-468-efficient-scanning-data-analysis-for-tomotherapy
#5
B Sintay, K Pearman, J Maurer, H Liu, T Hayes, D Wiant
PURPOSE: The standard TomoTherapy 2D scanning system requires manual analysis using spreadsheets or similar software. Manual analysis is time consuming and does not allow efficient use of the medical physicist or timely results that may indicate issues during the acquisition of data. The purpose of this study is to determine if an in-house solution can provide timely analysis of TomoTherapy scan data. METHODS: A custom MATLAB program utilizing a streamlined graphical interface was developed to interpret the native scanning data acquired by the TomoTherapy Electrometer Measurement System (TEMS)...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28040630/pace-probabilistic-assessment-for-contributor-estimation-a-machine-learning-based-assessment-of-the-number-of-contributors-in-dna-mixtures
#6
Michael A Marciano, Jonathan D Adelman
The deconvolution of DNA mixtures remains one of the most critical challenges in the field of forensic DNA analysis. In addition, of all the data features required to perform such deconvolution, the number of contributors in the sample is widely considered the most important, and, if incorrectly chosen, the most likely to negatively influence the mixture interpretation of a DNA profile. Unfortunately, most current approaches to mixture deconvolution require the assumption that the number of contributors is known by the analyst, an assumption that can prove to be especially faulty when faced with increasingly complex mixtures of 3 or more contributors...
November 24, 2016: Forensic Science International. Genetics
https://www.readbyqxmd.com/read/28034614/system-dynamics-applied-to-closed-loop-supply-chains-of-desktops-and-laptops-in-brazil-a-perspective-for-social-inclusion-of-waste-pickers
#7
Verônica Ghisolfi, Gisele de Lorena Diniz Chaves, Renato Ribeiro Siman, Lúcia Helena Xavier
The structure of reverse logistics for waste electrical and electronic equipment (WEEE) is essential to minimize the impacts of their improper disposal. In this context, the Brazilian Solid Waste Policy (BSWP) was a regulatory milestone in Brazil, submitting WEEE to the mandatory implementation of reverse logistics systems, involving the integration of waste pickers on the shared responsibility for the life cycle of products. This article aims to measure the impact of such legal incentives and the bargaining power obtained by the volume of collected waste on the effective formalization of waste pickers...
December 26, 2016: Waste Management
https://www.readbyqxmd.com/read/28031210/randomised-feasibility-study-of-a-novel-experience-based-internet-intervention-to-support-self-management-in-chronic-asthma
#8
Nikki Newhouse, Angela Martin, Sena Jawad, Ly-Mee Yu, Mina Davoudianfar, Louise Locock, Sue Ziebland, John Powell
OBJECTIVE: To determine the feasibility of a randomised controlled trial (RCT) assessing the effects of an experience-based website as a resource for the self-management of chronic asthma. DESIGN AND SETTING: Feasibility, single-blind RCT in 2 regions of England. Randomisation used computer-generated random number sequence in a 1:1 ratio, after baseline data collection, to website access for 2 weeks. PARTICIPANTS: Adults (age ≥18 years), with clinically diagnosed asthma as coded in their primary care electronic record, prescribed inhaled corticosteroids for at least 3 months in the previous year, were recruited from 9 general practices...
December 28, 2016: BMJ Open
https://www.readbyqxmd.com/read/28031034/uqlust-combining-profile-hashing-with-linear-time-ranking-for-efficient-clustering-and-analysis-of-big-macromolecular-data
#9
Rafal Adamczak, Jarek Meller
BACKGROUND: Advances in computing have enabled current protein and RNA structure prediction and molecular simulation methods to dramatically increase their sampling of conformational spaces. The quickly growing number of experimentally resolved structures, and databases such as the Protein Data Bank, also implies large scale structural similarity analyses to retrieve and classify macromolecular data. Consequently, the computational cost of structure comparison and clustering for large sets of macromolecular structures has become a bottleneck that necessitates further algorithmic improvements and development of efficient software solutions...
December 28, 2016: BMC Bioinformatics
https://www.readbyqxmd.com/read/28009337/wireless-multichannel-electroencephalography-in-the-newborn
#10
Z H Ibrahim, G Chari, S Abdel Baki, V Bronshtein, M R Kim, J Weedon, J Cracco, J V Aranda
OBJECTIVES: First, to determine the feasibility of an ultra-compact wireless device (microEEG) to obtain multichannel electroencephalographic (EEG) recording in the Neonatal Intensive Care Unit (NICU). Second, to identify problem areas in order to improve wireless EEG performance. STUDY DESIGN: 28 subjects (gestational age 24-30 weeks, postnatal age <30 days) were recruited at 2 sites as part of an ongoing study of neonatal apnea and wireless EEG. Infants underwent 8-9 hour EEG recordings every 2-4 weeks using an electrode cap (ANT-Neuro) connected to the wireless EEG device (Bio-Signal Group)...
2016: Journal of Neonatal-perinatal Medicine
https://www.readbyqxmd.com/read/27992111/comparison-of-clustering-methods-for-high-dimensional-single-cell-flow-and-mass-cytometry-data
#11
Lukas M Weber, Mark D Robinson
Recent technological developments in high-dimensional flow cytometry and mass cytometry (CyTOF) have made it possible to detect expression levels of dozens of protein markers in thousands of cells per second, allowing cell populations to be characterized in unprecedented detail. Traditional data analysis by "manual gating" can be inefficient and unreliable in these high-dimensional settings, which has led to the development of a large number of automated analysis methods. Methods designed for unsupervised analysis use specialized clustering algorithms to detect and define cell populations for further downstream analysis...
December 2016: Cytometry. Part A: the Journal of the International Society for Analytical Cytology
https://www.readbyqxmd.com/read/27975355/-christmas-from-an-allergist-s-perspective
#12
Bettina Wedi
The customs and traditions associated with Christmas may result in allergic reactions to allergens that are typical for this period. On the one hand the rise in prevalence of allergic diseases has continued in the industrialized world for the last decades and allergies are regarded as widespread diseases. On the other hand the 21th century is a time of "allergy delusion". This review summarizes the facts about allergic reactions to Christmas typical decoration, food and behavior. Taken together, allergic reactions to Christmas tree, poinsettia, Christmas cactus, perfumed candles, Christmas typical food, common gifts like mobile phones and laptops, frankincense, myrrh and pollens have been described but in very rare instances...
December 2016: Deutsche Medizinische Wochenschrift
https://www.readbyqxmd.com/read/27957674/social-media-use-for-cancer-education-at-a-community-based-cancer-center-in-south-korea
#13
Jaesung Heo, Mison Chun, Hyun Woo Lee, Jeong-Hee Woo
The main purpose of this study was to evaluate the effectiveness of the education system using social media. Eight educational video clips were developed instructing the viewer on cancer-related issues such as prevention, treatment, and survivorship. Each video was made with participation of medical professors and posted on a YouTube channel. A mobile phone application was produced containing a scheduler function, introduction of a community cancer center program, and cancer information. A medical blog was established to provide stationary materials such as images and articles...
December 12, 2016: Journal of Cancer Education: the Official Journal of the American Association for Cancer Education
https://www.readbyqxmd.com/read/27930676/stochastic-simulation-service-bridging-the-gap-between-the-computational-expert-and-the-biologist
#14
Brian Drawert, Andreas Hellander, Ben Bales, Debjani Banerjee, Giovanni Bellesia, Bernie J Daigle, Geoffrey Douglas, Mengyuan Gu, Anand Gupta, Stefan Hellander, Chris Horuk, Dibyendu Nath, Aviral Takkar, Sheng Wu, Per Lötstedt, Chandra Krintz, Linda R Petzold
We present StochSS: Stochastic Simulation as a Service, an integrated development environment for modeling and simulation of both deterministic and discrete stochastic biochemical systems in up to three dimensions. An easy to use graphical user interface enables researchers to quickly develop and simulate a biological model on a desktop or laptop, which can then be expanded to incorporate increasing levels of complexity. StochSS features state-of-the-art simulation engines. As the demand for computational power increases, StochSS can seamlessly scale computing resources in the cloud...
December 2016: PLoS Computational Biology
https://www.readbyqxmd.com/read/27927083/measurement-of-peripheral-vision-reaction-time-identifies-white-matter-disruption-in-patients-with-mild-traumatic-brain-injury
#15
Kyle B Womack, Christopher Paliotta, Jeremy F Strain, Johnson S Ho, Yosef Skolnick, William W Lytton, L Christine Turtzo, Roderick McColl, Ramon Diaz-Arrastia, Peter J Bergold
This study examined whether peripheral vision reaction time (PVRT) in patients with mild traumatic brain injury (mTBI) correlated with white matter abnormalities in centroaxial structures and impairments in neuropsychological testing. Within 24 h after mTBI, crossed reaction times (CRT), uncrossed reaction times (URT), and crossed-uncrossed difference (CUD) were measured in 23 patients using a laptop computer that displayed visual stimuli predominantly to either the left or the right visual field of the retina...
January 13, 2017: Journal of Neurotrauma
https://www.readbyqxmd.com/read/27919439/associations-between-physical-activity-and-semen-quality-in-young-healthy-men
#16
Paweł Jóźków, Marek Mędraś, Felicja Lwow, Aleksandra Zagrodna, Małgorzata Słowińska-Lisowska
OBJECTIVE: To evaluate whether the level of everyday physical activity is associated with semen quality in young men. DESIGN: Cross-sectional study. SETTING: Universities, clubs, and societies. PATIENT(S): Young healthy men (aged 18-35 years) with unknown fertility (n = 177). INTERVENTIONS(S): Collection of data on medical history, lifestyle factors (physical activity, nutrition, addictions), and environmental threats (exposure of gonads to cellular phones, laptops)...
December 2, 2016: Fertility and Sterility
https://www.readbyqxmd.com/read/27917792/potential-beneficial-effects-of-foot-bathing-on-cardiac-rhythm
#17
Duygu Aydin, Siti Sugih Hartiningsih, Melike Gokce Izgi, Sevgi Bay, Kubra Unlu, Meryem Ozlem Tatar, Ayse Melike Alparslan, Mohammed Ozeri, Senol Dane
PURPOSE: Foot bathing therapy is a simple technique that induces sensations of comfort and relaxation. The aim of this study was to examine the effect of foot bathing therapy on heart rate variability (HRV) parameters in a healthy population. METHODS: Participants were twenty healthy female subjects (median age=20.67 years, SD=1.04). The recording ECG was applied for 5 minutes before and for 5 minutes after foot bathing therapy of 10 minutes. Subjects rested for 10 minutes without recording ECG in order to stabilize autonomic parameters...
December 1, 2016: Clinical and Investigative Medicine. Médecine Clinique et Experimentale
https://www.readbyqxmd.com/read/27913331/lamb-wave-multitouch-ultrasonic-touchscreen
#18
Kamyar Firouzi, Amin Nikoozadeh, Thomas E Carver, Butrus Pierre T Khuri-Yakub
Touchscreen sensors are widely used in many devices such as smart phones, tablets, and laptops with diverse applications. We present the design, analysis, and implementation of an ultrasonic touchscreen system that utilizes the interaction of transient Lamb waves with objects in contact with the screen. It attempts to improve on the existing ultrasound technologies, with the potential of addressing some of the weaknesses of the dominant technologies, such as the capacitive or resistive ones. Compared with the existing ultrasonic and acoustic modalities, among other advantages, it provides the capability of detecting several simultaneous touch points and also a more robust performance...
December 2016: IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
https://www.readbyqxmd.com/read/27912979/measuring-performance-in-the-interpretation-of-chest-radiographs-a-pilot-study
#19
Y Chen, J J James, L Dong, A G Gale
AIM: To develop a system to assess the image interpretation performance of radiologists in identifying signs of malignancy on chest radiographs. MATERIALS AND METHODS: A test set of 30 chest radiographs was chosen by an experienced radiologist consisting of 11 normal and 19 abnormal cases. The malignant cases all had biopsy-proven pathology; the normal and benign cases all had at least 2 years of imaging follow-up. Fourteen radiologists with a range of experiences were recruited...
November 29, 2016: Clinical Radiology
https://www.readbyqxmd.com/read/27909536/screening-for-atrial-fibrillation-in-the-community-using-a-novel-ecg-recorder
#20
Irma Battipaglia Md, Katrina Gilbert BSc, Andrew J Hogarth Md PhD, Muzahir H Tayebjee Md
Aims: MyDiagnostick (MDK) is a novel portable ECG recorder. We conducted this study to evaluate its role in screening for atrial fibrillation (AF). Methods: The device is a cylindrical rod with metallic electrodes at both ends recording electrocardiogram (ECG) when both electrodes are held. Individuals were requested to hold the device for approximately 15 s, the device was then connected to a laptop (with proprietary software downloaded) and analysed. Anonymised ECGs were stored for further analysis. A total of 855 ECGs were recorded and analysed offline by two arrhythmia specialists assessing ECG quality, in particular the level of noise...
August 2016: Journal of Atrial Fibrillation
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