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Sign tracking

Joan Webster, Sarah Northfield, Emily N Larsen, Nicole Marsh, Claire M Rickard, Raymond J Chan
INTRODUCTION: Many patients are discharged from hospital with a peripherally inserted central catheter in place. Monitoring the peripherally inserted central catheter insertion site for clinical and research purposes is important for identifying complications, but the extent to which patients can reliably report the condition of their catheter insertion site is uncertain. The aim of this study was to assess the inter-observer agreement between nurses and patients when assessing a peripherally inserted central catheter site...
March 1, 2018: Journal of Vascular Access
Anna Vera Cuppone, Marianna Semprini, Jürgen Konczak
Sensorimotor learning is a bidirectional process associated with concurrent neuroplastic changes in the motor and somatosensory system. While motor memory consolidation and retention have been extensively studied during skill acquisition, little is known about the formation and consolidation of somatosensory memory associated with motor learning. Using a robotic exoskeleton, we tracked markers of somatosensory and motor learning while healthy participants trained to make goal-directed wrist reaching movements over five days and evaluated retention for up to 10 days after practice...
March 13, 2018: Behavioural Brain Research
Alexander Trumpp, Johannes Lohr, Daniel Wedekind, Martin Schmidt, Matthias Burghardt, Axel R Heller, Hagen Malberg, Sebastian Zaunseder
BACKGROUND: Camera-based photoplethysmography (cbPPG) is a measurement technique which enables remote vital sign monitoring by using cameras. To obtain valid plethysmograms, proper regions of interest (ROIs) have to be selected in the video data. Most automated selection methods rely on specific spatial or temporal features limiting a broader application. In this work, we present a new method which overcomes those drawbacks and, therefore, allows cbPPG to be applied in an intraoperative environment...
March 14, 2018: Biomedical Engineering Online
Sahnzi C Moyers, James S Adelman, Damien R Farine, Courtney A Thomason, Dana M Hawley
Anthropogenic food provisioning of wildlife can alter the frequency of contacts among hosts and between hosts and environmental sources of pathogens. Despite the popularity of garden bird feeding, few studies have addressed how feeders influence host contact rates and disease dynamics. We experimentally manipulated feeder density in replicate aviaries containing captive, pathogen-naive, groups of house finches ( Haemorhous mexicanus ) and continuously tracked behaviours at feeders using radio-frequency identification devices...
May 5, 2018: Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
Kai Fang, Qifeng Zhang, Huajun Yu, Yutao Wang, Liang Dong, Lei Shi
The Sustainable Development Goals (SDGs) are limited in their ability to measure progress towards environmental sustainability especially at the city level. The aim of this paper is to provide insights into an integrated assessment of urban sustainability, with emphasis on the significance of the maintenance of natural capital stocks. The use of water and land as critical natural capital in Guiyang, a southeast city in China was investigated by bringing together the ecological footprint (EF), water footprint (WF) and corresponding capacity indicators into an improved three-dimensional (i3D) model...
March 9, 2018: Science of the Total Environment
R L van den Brink, S Nieuwenhuis, G J M van Boxtel, G van Luijtelaar, H J Eilander, V J M Wijnen
For some patients, coma is followed by a state of unresponsiveness, while other patients develop signs of awareness. In practice, detecting signs of awareness may be hindered by possible impairments in the patient's motoric, sensory, or cognitive abilities, resulting in a substantial proportion of misdiagnosed disorders of consciousness. Task-free paradigms that are independent of the patient's sensorimotor and neurocognitive abilities may offer a solution to this challenge. A limitation of previous research is that the large majority of studies on the pathophysiological processes underlying disorders of consciousness have been conducted using cross-sectional designs...
2018: NeuroImage: Clinical
Emanuele Asti, Gianluca Bonitta, Matteo Melloni, Stefania Tornese, Pamela Milito, Andrea Sironi, Elena Costa, Luigi Bonavina
BACKGROUND: Early detection of anastomotic leakage after esophagectomy has the potential to reduce morbidity and mortality. Prompt suspicion of leak may help to exclude patients from fast-track protocols, thereby avoiding early oral feeding and early hospital discharge which could aggravate the prognosis of a clinically occult leak. PATIENTS AND METHODS: Observational retrospective cohort study. Patients with diagnosis of esophageal cancer who underwent elective minimally invasive esophagectomy were included...
March 7, 2018: Langenbeck's Archives of Surgery
Juliane Bräuer, Julia Belger
There has been a growing interest in the cognitive skills of domestic dogs, but most current knowledge about dogs' understanding of their environment is limited to the visual or auditory modality. Although it is well known that dogs have an excellent olfactory sense and that they rely on olfaction heavily when exploring the environment or recognizing individuals, it remains unclear whether dogs perceive odors as representing specific objects. In the current study, we examined this aspect of dogs' perception of the world...
March 5, 2018: Journal of Comparative Psychology
Adél Porpáczy, Ágnes Nógrádi, Dániel Kehl, Maja Strenner, Tünde Minier, László Czirják, András Komócsi, Réka Faludi
BACKGROUND: Left ventricular (LV) diastolic dysfunction is common in systemic sclerosis (SSc). Less is known however, about left atrial (LA) mechanics in this context. The aim of our study was to investigate the correlation between LV diastolic function and LA mechanics in SSc patients by using volumetric and 2D speckle-tracking-derived strain techniques and compare the results with those obtained in healthy subjects. METHODS AND RESULTS: 72 SSc patients and 30 healthy volunteers (H) were investigated...
March 1, 2018: Journal of Cardiac Failure
Tony Rosen, Nisha Mehta-Naik, Alyssa Elman, Mary R Mulcare, Michael E Stern, Sunday Clark, Rahul Sharma, Veronica M LoFaso, Risa Breckman, Mark Lachs, Nancy Needell
PROBLEM DEFINITION: Hospitals have an opportunity to improve the quality of care provided to a particularly vulnerable population: victims of elder mistreatment. Despite this, no programs to prevent or stop elder abuse in the acute care hospital have been reported. An innovative, multidisciplinary emergency department (ED)-based intervention for elder abuse victims, the Vulnerable Elder Protection Team (VEPT), was developed at NewYork-Presbyterian / Weill Cornell Medical Center (New York City)...
March 2018: Joint Commission Journal on Quality and Patient Safety
Suad Mohammmed Iddrisu, Ana F Hutchinson, Yasmin Sungkar, Julie Considine
BACKGROUND: Clinical deterioration is a significant problem in acute care settings. Nurses play a vital role in postoperative patient monitoring, however, there is limited understanding of the nurses' role in recognising and responding to clinical deterioration in surgical patients. AIM: To explore nurse' role in recognising and responding to deteriorating postoperative patients. METHODS: This qualitative exploratory study was conducted at a metropolitan teaching hospital in Melbourne, Australia...
March 1, 2018: Journal of Clinical Nursing
Alberta Sj Van der Watt, Alexandra Psp Suryapranata, Soraya Seedat
Objectives: Our primary objective was to assess the feasibility of interepisodal telephonic mood monitoring in patients with affective disorders in a low-resource setting. Secondary objectives included gathering data on longitudinal mood trajectories and assessing patient acceptance of mood monitoring. Methods: Inpatients with a primary mood or anxiety disorder were recruited predischarge. Assessment at intake included demographic information, the Life Events Checklist, and the Childhood Trauma Questionnaire...
2018: Neuropsychiatric Disease and Treatment
Ioannis Felekos, Constantina Aggeli, Elias Gialafos, Vasileios Kouranos, Aggeliki Rapti, Petros Sfikakis, Nikolaos Koulouris, Dimitris Tousoulis
PURPOSE: Global longitudinal strain (GLS) is increasingly accepted as a predictor of mortality in various clinical settings. This study tested the hypothesis that GLS is associated with increased event rate in patients with extracardiac sarcoidosis, who have no overt symptoms of cardiovascular disease and preserved ejection fraction (EF). METHODS: We retrospectively studied 117 patients with extracardiac sarcoidosis and 45 age- and sex-matched controls, who underwent comprehensive echocardiographic study, while GLS was measured by an offline speckle tracking algorithm...
February 28, 2018: Echocardiography
Svetlana L Kotova, Peter S Timashev, Galina V Belkova, Marina V Kochueva, Ksenia V Babak, Victoria A Timofeeva, Elena B Kiseleva, Olga O Vasilieva, Anna V Maslennikova, Anna B Solovieva
Radiation therapy, widely used in the treatment of a variety of malignancies in the pelvic area, is associated with inevitable damage to the surrounding healthy tissues. We have applied atomic force microscopy (AFM) to track the early damaging effects of ionizing radiation on the collagen structures in the experimental animals' bladder and rectum. The first signs of the low-dose radiation (2 Gy) effect were detected by AFM as early as 1 week postirradiation. The observed changes were consistent with initial radiation destruction of the protein matrix...
February 2018: Microscopy and Microanalysis
Rui Fang, Shaohang Wu, Weitao Chen, Zonghao Liu, Shasha Zhang, Rui Chen, Youfeng Yue, Lin-Long Deng, Yibing Cheng, Liyuan Han, Wei Chen
Stability issues and high material cost constitute the biggest obstacles of perovskite solar cell (PVSC), hampering its sustainable development. Herein, we demonstrate that, after suitable surface modification, the low-cost cerium oxide (CeOx) nanocrystals can be well dispersed in both polar and non-polar solvents and easily processed into high quality electron transport layers (ETLs). The inverted PVSC with the configuration of "NiMgLiO/MAPbI3/[6,6]-phenyl-C61-butyric acid methyl ester (PCBM)/CeOx" has achieved a high efficiency up to 18...
February 26, 2018: ACS Nano
Marco Costa, Andrea Simone, Valeria Vignali, Claudio Lantieri, Nicola Palena
The distance of first-fixation to vertical road signs was assessed in 22 participants while driving a route of 8.34 km. Fixations to road signs were recorded by a mobile eye-movement-tracking device synchronized to GPS and kinematic data. The route included 75 road signs. First-fixation distance and fixation duration distributions were positively skewed. Median distance of first-fixation was 51 m. Median fixation duration was 137 ms with a modal value of 66 ms. First-fixation distance was linearly related to speed and fixation duration...
May 2018: Applied Ergonomics
Lucia Venneri, Giacomo Zoppellaro, Rajdeep S Khattar
Cardio-oncology is a rapidly growing field aimed at improving the quality of care of cancer patients by preventing and monitoring cardiovascular complications resulting from cancer treatment. Cardiac imaging, and in particular, transthoracic echocardiography, plays an essential
role in the baseline assessment and serial follow-up of cardio-oncology patients. Areas covered: This review article discusses the role of cardiac imaging with a focus on advanced echocardiography for the detection and management of cancer therapy related cardiovascular complications, in particular, left ventricular dysfunction and heart failure...
February 22, 2018: Expert Review of Cardiovascular Therapy
Christoffer E Hagemann, Søren Hoffmann, Flemming J Olsen, Peter G Jørgensen, Thomas Fritz-Hansen, Jan S Jensen, Tor Biering-Sørensen
AIMS: Two-dimensional speckle tracking echocardiography (2DSTE) detects early signs of left ventricular dysfunction; however, it is unknown whether layer-specific global longitudinal strain (GLS) has incremental value in diagnosis of patients with reversible ischemia assessed by single photon emission computed tomography (SPECT). METHODS AND RESULTS: Eighty patients with stable angina pectoris (SAP), normal left ventricular ejection fraction (LVEF), and no history of ischemic heart disease were retrospectively identified to have been examined by 2DSTE, SPECT, and coronary angiography (CAG)...
February 15, 2018: Echocardiography
Rich Pang, Floris van Breugel, Michael Dickinson, Jeffrey A Riffell, Adrienne Fairhall
Natural decision-making often involves extended decision sequences in response to variable stimuli with complex structure. As an example, many animals follow odor plumes to locate food sources or mates, but turbulence breaks up the advected odor signal into intermittent filaments and puffs. This scenario provides an opportunity to ask how animals use sparse, instantaneous, and stochastic signal encounters to generate goal-oriented behavioral sequences. Here we examined the trajectories of flying fruit flies (Drosophila melanogaster) and mosquitoes (Aedes aegypti) navigating in controlled plumes of attractive odorants...
February 12, 2018: PLoS Computational Biology
Jon D Simmons, Steven A Kahn, Adrienne L Vickers, Edward S Crockett, Jonathon D Whitehead, Amy K Krecker, Yann-Leei Lee, Adam N Miller, Scott B Patterson, William O Richards, Wiltz W Wagner
BACKGROUND: Diagnosing the extremes of superficial burns and of full-thickness burns is straightforward. It is in the middle ground of partial thickness burns where the diagnostic difficulties emerge; it can take up to 3-5 days for signs of healing to appear. We hypothesize that cooling partial thickness burns and tracking the rate of rewarming will immediately reflect the condition of the burn: shallow partial-thickness burns that retain cell health and blood flow will rewarm rapidly, whereas deeper burns with damaged microvessels will rewarm slowly...
January 30, 2018: Journal of the American College of Surgeons
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