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https://www.readbyqxmd.com/read/28077665/spatial-cognition-in-a-virtual-reality-home-cage-extension-for-freely-moving-rodents
#1
Ursula Kaupert, Kay Thurley, Katja Frei, Francesco Bagorda, Alexej Schatz, Gilad Tocker, Sophia Rapoport, Dori Derdikman, York Winter
Virtual reality environments are part of a powerful tool set to investigate brain mechanisms of behavior in animals. For this, animals are mostly head-fixed or in a harness, and training for cognitively more complex VR paradigms is time consuming. A virtual reality apparatus allowing free animal movement and 24/7 operator-independent training of tasks would enable many new applications. Key prospective usages include brain imaging in behaving animals carrying a miniaturized mobile device such as a fluorescence microscope, or an optetrode...
January 11, 2017: Journal of Neurophysiology
https://www.readbyqxmd.com/read/28073670/simulation-based-training-platforms-for-arthroscopy-a-randomized-comparison-of-virtual-reality-learning-to-benchtop-learning
#2
Robert M Middleton, Abtin Alvand, Patrick Garfjeld Roberts, Caroline Hargrove, Georgina Kirby, Jonathan L Rees
PURPOSE: To determine whether a virtual reality (VR) arthroscopy simulator or benchtop (BT) arthroscopy simulator showed superiority as a training tool. METHODS: Arthroscopic novices were randomized to a training program on a BT or a VR knee arthroscopy simulator. The VR simulator provided user performance feedback. Individuals performed a diagnostic arthroscopy on both simulators before and after the training program. Performance was assessed using wireless objective motion analysis and a global rating scale...
January 7, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28069147/a-content-analysis-of-emotional-concerns-expressed-at-the-time-of-receiving-a-cancer-diagnosis-an-observational-study-of-consultations-with-adolescent-and-young-adult-patients-and-their-family-members
#3
Live Korsvold, Anneli Viktoria Mellblom, Arnstein Finset, Ellen Ruud, Hanne Cathrine Lie
PURPOSE: Little is known about the emotional concerns expressed by adolescent and young adult (AYA) patients in consultations when a diagnosis of cancer is delivered. Here, we investigated the content of such concerns and how health care providers respond to them. METHOD: We audio-recorded nine consultations with AYA cancer patients (ages: 12-25 years) at the time of diagnosis. We have previously identified and coded 135 emotional concerns and the responses to these in the nine consultations using the Verona Coding Definitions of Emotional Sequences (VR-CoDES) framework...
February 2017: European Journal of Oncology Nursing: the Official Journal of European Oncology Nursing Society
https://www.readbyqxmd.com/read/28062209/thromboelastogram-does-not-detect-pre-injury-anticoagulation-in-acute-trauma-patients
#4
Jawad T Ali, Mitchell J Daley, Nina Vadiei, Zachary Enright, Joseph Nguyen, Sadia Ali, Jayson D Aydelotte, Pedro G Teixeira, Thomas B Coopwood, Carlos Vr Brown
PURPOSE: Thromboelastography (TEG) has been recommended to characterize post-traumatic coagulopathy, yet no study has evaluated the impact of pre-injury anticoagulation (AC) on TEG variables. We hypothesized patients on pre-injury AC have a greater incidence of coagulopathy on TEG compared to those without AC. METHODS: This retrospective chart review evaluated all trauma patients admitted to an urban, level one trauma center from February 2011 to September 2014 who received a TEG within the first 24h...
December 26, 2016: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28058479/electrocardiographic-rr-and-qt-interval-variability-in-patients-with-atrial-septal-defect-and-healthy-children
#5
Yoshihiko Eryu, Tadayoshi Hata, Arisa Nagatani, Yuri Funamoto, Hidetoshi Uchida, Masayuki Fujino, Hiroko Boda, Masafumi Miyata, Tetsushi Yoshikawa
Atrial septal defect is a common congenital heart disease. In patients with atrial septal defect, left-to-right shunting increases the right atrial and right ventricular preload. This pathological change affects sinus node automaticity and myocardial depolarization and repolarization, and has the potential to evoke arrhythmogenic substrates. We examined the effect of atrial septal defect on sinus node automaticity and myocardial repolarization by investigating the variability in the repolarization interval, namely the QT variability index (QTVI) and variability ratio (VR)...
January 5, 2017: Pediatric Cardiology
https://www.readbyqxmd.com/read/28057901/genetic-diversity-and-phylogenetic-analysis-of-porcine-reproductive-and-respiratory-syndrome-virus-in-southern-china-from-2007-to-2014
#6
Qiwen Wu, Zhili Li, Guanqun Zhang, Jianqiang Niu, Xiduo Zeng, Baoli Sun, Jingyun Ma
Porcine reproductive and respiratory syndrome virus (PRRSV) has a high degree of genetic variation. Here, we characterized the genetic variation and evolutionary relationships among circulating PRRSV strains in Southern China. In this study, we analyzed 29 NSP2 strains and 150 ORF5 strains from clinical samples collected in Southern China during 2007-2014. The alignment results showed that the nucleotide identities of the two genes among these strains were 80.5-99.7% and 80.9-100%, respectively. Phylogenetic analysis based on NSP2 gene showed that high pathogenic PRRSV were still the dominant virus in Southern China from 2013 to 2014...
January 4, 2017: Journal of Veterinary Science
https://www.readbyqxmd.com/read/28056965/phylogenetic-characterization-of-genes-encoding-for-viral-envelope-glycoprotein-orf5-and-nucleocapsid-protein-orf7-of-porcine-reproductive-respiratory-syndrome-virus-found-in-malaysia-in-2013-and-2014
#7
Seetha Jaganathan King, Peck Toung Ooi, Lai Yee Phang, Zeenathul Nazariah Binti Allaudin, Wei Hoong Loh, Chiou Yan Tee, Shiao Pau How, Lai Siong Yip, Pow Yoon Choo, Ban Keong Lim
BACKGROUND: Porcine reproductive and respiratory syndrome (PRRS) is one of the most expensive diseases of modern swine production & results in annual economic losses and cost the industry over 600 million USD in U.S. alone and billions of dollars worldwide. Two atypical PRRS cases were observed in 2013 and 2014 characterized by late-term abortion, fever and sudden increase in sow mortality which persisted for a prolonged period of time. METHODS: Lungs, lymph nodes and other samples were collected for disease investigation...
January 5, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/28051880/the-effect-of-additional-virtual-reality-training-on-balance-in-children-with-cerebral-palsy-after-lower-limb-surgery-a-feasibility-study
#8
Pieter Meyns, Liene Pans, Kaat Plasmans, Lieve Heyrman, Kaat Desloovere, Guy Molenaers
OBJECTIVE: Impaired balance is disabling for children with cerebral palsy (CPc), especially for CPc who recently underwent lower limb surgery. Positive results of using virtual reality (VR) in balance rehabilitation have been published in several outpatient populations. We investigated the feasibility of applying additional VR training focused on sitting balance in CP inpatients of a rehabilitation center after lower limb surgery. Additionally, we investigated the rate of enjoyment of VR training compared with conventional physiotherapy...
January 4, 2017: Games for Health
https://www.readbyqxmd.com/read/28045907/early-prediction-of-alzheimer-s-disease-using-null-longitudinal-model-based-classifiers
#9
Giovana Gavidia-Bovadilla, Samir Kanaan-Izquierdo, María Mataró-Serrat, Alexandre Perera-Lluna
Incipient Alzheimer's Disease (AD) is characterized by a slow onset of clinical symptoms, with pathological brain changes starting several years earlier. Consequently, it is necessary to first understand and differentiate age-related changes in brain regions in the absence of disease, and then to support early and accurate AD diagnosis. However, there is poor understanding of the initial stage of AD; seemingly healthy elderly brains lose matter in regions related to AD, but similar changes can also be found in non-demented subjects having mild cognitive impairment (MCI)...
2017: PloS One
https://www.readbyqxmd.com/read/28045895/a-framework-for-analyzing-the-whole-body-surface-area-from-a-single-view
#10
Marco Piccirilli, Gianfranco Doretto, Donald Adjeroh
We present a virtual reality (VR) framework for the analysis of whole human body surface area. Usual methods for determining the whole body surface area (WBSA) are based on well known formulae, characterized by large errors when the subject is obese, or belongs to certain subgroups. For these situations, we believe that a computer vision approach can overcome these problems and provide a better estimate of this important body indicator. Unfortunately, using machine learning techniques to design a computer vision system able to provide a new body indicator that goes beyond the use of only body weight and height, entails a long and expensive data acquisition process...
2017: PloS One
https://www.readbyqxmd.com/read/28043026/venturing-into-the-uncanny-valley-of-mind-the-influence-of-mind-attribution-on-the-acceptance-of-human-like-characters-in-a-virtual-reality-setting
#11
Jan-Philipp Stein, Peter Ohler
For more than 40years, the uncanny valley model has captivated researchers from various fields of expertise. Still, explanations as to why slightly imperfect human-like characters can evoke feelings of eeriness remain the subject of controversy. Many experiments exploring the phenomenon have emphasized specific visual factors in connection to evolutionary psychological theories or an underlying categorization conflict. More recently, studies have also shifted away focus from the appearance of human-like entities, instead exploring their mental capabilities as basis for observers' discomfort...
December 30, 2016: Cognition
https://www.readbyqxmd.com/read/28041917/cognitive-remediation-and-occupational-outcome-in-schizophrenia-spectrum-disorders-a-2year-follow-up-study
#12
June Ullevoldsæter Lystad, Erik Falkum, Vegard Øksendal Haaland, Helen Bull, Stig Evensen, Susan R McGurk, Torill Ueland
Neurocognitive impairment is prominent in schizophrenia and a significant predictor of poor occupational outcomes. Vocational rehabilitation (VR) is frequently implemented to counteract high unemployment rates. Individuals with schizophrenia however face numerous challenges such as neurocognitive impairments and psychotic symptoms. Hence, augmenting VR to address illness-related factors may optimize occupational outcomes. The aim of this study was to examine the effects of Cognitive Remediation (CR) combined with VR(CR+VR) compared to techniques from Cognitive Behavioral Therapy (CBT) combined with VR(CBT+VR) on neurocognition and occupational functioning over a 2year period...
December 29, 2016: Schizophrenia Research
https://www.readbyqxmd.com/read/28041763/bipolar-patients-with-vascular-risk-display-a-steeper-age-related-negative-slope-in-inhibitory-performance-but-not-processing-speed-a-preliminary-study
#13
Sheena I Dev, Lisa T Eyler
OBJECTIVE: Bipolar disorder (BD) is associated with cognitive deficits, yet little is known about associations between cognition, vascular risk (VR), and age in this population. This study investigated whether BD patients with VR demonstrate stronger apparent age-related decline in inhibitory performance and processing speed (PS). METHODS: A full medical history was obtained for 34 euthymic BD and 41 healthy comparison (HC) individuals. The Delis-Kaplan Executive Functions Color Word Interference Subtests were administered to all participants to assess for inhibitory performance (condition 3) and PS (conditions 1 and 2)...
December 7, 2016: American Journal of Geriatric Psychiatry
https://www.readbyqxmd.com/read/28039649/or-fire-virtual-training-simulator-design-and-face-validity
#14
Denis Dorozhkin, Jaisa Olasky, Daniel B Jones, Steven D Schwaitzberg, Stephanie B Jones, Caroline G L Cao, Marcos Molina, Steven Henriques, Jinling Wang, Jeff Flinn, Suvranu De
BACKGROUND: The Virtual Electrosurgical Skill Trainer is a tool for training surgeons the safe operation of electrosurgery tools in both open and minimally invasive surgery. This training includes a dedicated team-training module that focuses on operating room (OR) fire prevention and response. The module was developed to allow trainees, practicing surgeons, anesthesiologist, and nurses to interact with a virtual OR environment, which includes anesthesia apparatus, electrosurgical equipment, a virtual patient, and a fire extinguisher...
December 30, 2016: Surgical Endoscopy
https://www.readbyqxmd.com/read/28038967/pancreatoduodenectomy-with-venous-or-arterial-resection-a-nsqip-propensity-score-analysis
#15
Joal D Beane, Michael G House, Susan C Pitt, Ben Zarzaur, E Molly Kilbane, Bruce L Hall, Taylor S Riall, Henry A Pitt
INTRODUCTION: Vascular resection during pancreatoduodenectomy (PD) is being performed more frequently. Our aim was to analyze the outcomes of PD with and without vascular resection in a large, multicenter cohort. METHODS: Patient data were gathered from 43 institutions as part of the American College of Surgeons-National Surgical Quality Improvement Program (ACS-NSQIP) Pancreatectomy Demonstration Project. Over a 14-month period, 1414 patients underwent PD without (82...
December 27, 2016: HPB: the Official Journal of the International Hepato Pancreato Biliary Association
https://www.readbyqxmd.com/read/28035922/a-preliminary-study-on-the-feasibility-of%C3%A2-using-a-virtual-reality-cognitive-training-application-for-remote-detection-of-mild-cognitive-impairment
#16
Stelios Zygouris, Konstantinos Ntovas, Dimitrios Giakoumis, Konstantinos Votis, Stefanos Doumpoulakis, Sofia Segkouli, Charalampos Karagiannidis, Dimitrios Tzovaras, Magda Tsolaki
BACKGROUND: It has been demonstrated that virtual reality (VR) applications can be used for the detection of mild cognitive impairment (MCI). OBJECTIVE: The aim of this study is to provide a preliminary investigation on whether a VR cognitive training application can be used to detect MCI in persons using the application at home without the help of an examiner. METHODS: Two groups, one of healthy older adults (n = 6) and one of MCI patients (n = 6) were recruited from Thessaloniki day centers for cognitive disorders and provided with a tablet PC with custom software enabling the self-administration of the Virtual Super Market (VSM) cognitive training exercise...
December 30, 2016: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/28030923/microbiological-characterization-of-vegetables-and-their-rhizosphere-soil-in-eastern-poland
#17
Teresa Kłapeć, Angelina Wójcik-Fatla, Alicja Cholewa, Grażyna Cholewa, Jacek Dutkiewicz
The aim of this study was to investigate the bacteriological quality of 5 kinds of vegetables (lettuce, dill, radish, beetroot, carrot) and their rhizosphere soil, originating from conventional farms located in the Lublin Province of Eastern Poland. A total number of 35 samples of fresh vegetables (FV) taken immediately from soil, 35 samples of soil from rhizosphere of these vegetables (SR) and 35 samples of vegetables sold at retail in the markets in Lublin (VR) were examined. The samples were analysed for the content of: aerobic mesophilic bacteria (AMB) grown at 30°C and 37°C, Gram-negative bacteria of Enterobacteriaceae family, faecal coliform (FC) bacteria, Salmonella spp...
23, 2016: Annals of Agricultural and Environmental Medicine: AAEM
https://www.readbyqxmd.com/read/28030877/an-alternative-clinical-routine-for-subjective-refraction-based-on-power-vectors-with-trial-frames
#18
Antonia María Revert, Maria Amparo Conversa, César Albarrán Diego, Vicente Micó
PURPOSE: Subjective refraction determines the final point of refractive error assessment in most clinical environments and its foundations have remained unchanged for decades. The purpose of this paper is to compare the results obtained when monocular subjective refraction is assessed in trial frames by a new clinical procedure based on a pure power vector interpretation with conventional clinical refraction procedures. METHODS: An alternative clinical routine is described that uses power vector interpretation with implementation in trial frames...
January 2017: Ophthalmic & Physiological Optics: the Journal of the British College of Ophthalmic Opticians (Optometrists)
https://www.readbyqxmd.com/read/28030505/ultrasound-assessment-of-volume-responsiveness-in-critically-ill-surgical-patients-two-measurements-are-better-than-one
#19
Sarah B Murthi, Syeda Fatima, Ashely R Menne, Jacob J Glaser, Samuel M Galvagno, Stephen Biederman, Stephen Biederman, Raymond Fang, Hegang Chen, Thomas M Scalea
BACKGROUND: The intended physiologic response to a fluid bolus is an increase in stroke volume (SV). Several ultrasound (US) measures have been shown to be predictive. The best measure(s) in critically ill surgical patients remains unclear. METHODS: This is a prospective observational study in critically ill surgical patients receiving a bolus of crystalloid, colloid or blood. A transthoracic echocardiogram (TTE) was performed before (pre-TTE) and after. A positive volume response (+VR) was defined as a ≥15% increase in SV...
December 23, 2016: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/28026775/sounding-solid-combustibles-non-premixed-flame-sound-synthesis-for-different-solid-combustibles
#20
Qiang Yin, Shiguang Liu
With the rapidly growing VR industry, in recent years, more and more attention has been paid for fire sound synthesis. However, previous methods usually ignore the influences of the different solid combustibles, leading to unrealistic sounding results. This paper proposes SSC (sounding solid combustibles), which is a new recording-driven non-premixed flame sound synthesis framework accounting for different solid combustibles. SSC consists of three components: combustion noise, vortex noise and popping sounds...
December 21, 2016: IEEE Transactions on Visualization and Computer Graphics
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