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https://www.readbyqxmd.com/read/28806954/-usability-of-data-integration-and-visualization-software-for-multidisciplinary-pediatric-intensive-care-a-human-factors-approach-to-assessing-technology
#1
Ying Ling Lin, Anne-Marie Guerguerian, Jessica Tomasi, Peter Laussen, Patricia Trbovich
BACKGROUND: Intensive care clinicians use several sources of data in order to inform decision-making. We set out to evaluate a new interactive data integration platform called T3™ made available for pediatric intensive care. Three primary functions are supported: tracking of physiologic signals, displaying trajectory, and triggering decisions, by highlighting data or estimating risk of patient instability. We designed a human factors study to identify interface usability issues, to measure ease of use, and to describe interface features that may enable or hinder clinical tasks...
August 14, 2017: BMC Medical Informatics and Decision Making
https://www.readbyqxmd.com/read/28790977/micro-and-nano-vesicles-from-first-trimester-human-placentae-carry-flt-1-and-levels-are-increased-in-severe-preeclampsia
#2
Mancy Tong, Qi Chen, Joanna L James, Peter R Stone, Lawrence W Chamley
BACKGROUND/OBJECTIVES: Preeclampsia is a life-threatening hypertensive disease affecting 3-5% of pregnancies. While the pathogenesis of preeclampsia remains unclear, it is known that placenta-derived factors trigger the disease by activating maternal endothelial cells prior to the onset of clinical symptoms. Extracellular vesicles (EVs) of different sizes extruded by the placenta may be one factor. The truncated/secreted form of Flt-1 (sFlt-1) has also been implicated in the pathogenesis of preeclampsia...
2017: Frontiers in Endocrinology
https://www.readbyqxmd.com/read/28782050/theranostic-gold-nanoantennas-for-simultaneous-multiplexed-raman-imaging-of-immunomarkers-and-photothermal-therapy
#3
Joseph A Webb, Yu-Chuan Ou, Shannon Faley, Eden P Paul, Joseph P Hittinger, Camden C Cutright, Eugene C Lin, Leon M Bellan, Rizia Bardhan
In this study, we demonstrate the theranostic capability of actively targeted, site-specific multibranched gold nanoantennas (MGNs) in triple-negative breast cancer (TNBC) cells in vitro. By utilizing multiplexed surface-enhanced Raman scattering (SERS) imaging, enabled by the narrow peak widths of Raman signatures, we simultaneously targeted immune checkpoint receptor programmed death ligand 1 (PDL1) and the epidermal growth factor receptor (EGFR) overexpressed in TNBC cells. A 1:1 mixture of MGNs functionalized with anti-PDL1 antibodies and Raman tag 5,5-dithio-bis-(2-nitrobenzoic acid) (DTNB) and MGNs functionalized with anti-EGFR antibodies and Raman tag para-mercaptobenzoic acid (pMBA) were incubated with the cells...
July 31, 2017: ACS Omega
https://www.readbyqxmd.com/read/28777489/refinement-of-humoral-immune-monitoring-in-kidney-transplantation-the-role-of-hidden-alloreactive-memory-b-cells
#4
REVIEW
Sergi Luque, Marc Lúcia, Oriol Bestard
The advent of novel sensitive assays assessing circulating anti-HLA antibodies has allowed recognizing humoral alloimmunity as the main immune-mediated mechanism responsible of allograft rejection and graft loss in kidney transplantation. However, current immune-monitoring techniques, exclusively focusing on circulating anti-HLA antibodies, may underestimate the magnitude of humoral immune response as they exclude the memory B-cell (mBC) pool. Different biological compartments are involved in the intricate mechanisms triggering humoral alloimmune responses even in absence of detectable circulating alloantbodies...
August 4, 2017: Transplant International: Official Journal of the European Society for Organ Transplantation
https://www.readbyqxmd.com/read/28776024/a-laboratory-nanoseismological-study-on-deep-focus-earthquake-micromechanics
#5
Yanbin Wang, Lupei Zhu, Feng Shi, Alexandre Schubnel, Nadege Hilairet, Tony Yu, Mark Rivers, Julien Gasc, Ahmed Addad, Damien Deldicque, Ziyu Li, Fabrice Brunet
Global earthquake occurring rate displays an exponential decay down to ~300 km and then peaks around 550 to 600 km before terminating abruptly near 700 km. How fractures initiate, nucleate, and propagate at these depths remains one of the greatest puzzles in earth science, as increasing pressure inhibits fracture propagation. We report nanoseismological analysis on high-resolution acoustic emission (AE) records obtained during ruptures triggered by partial transformation from olivine to spinel in Mg2GeO4, an analog to the dominant mineral (Mg,Fe)2SiO4 olivine in the upper mantle, using state-of-the-art seismological techniques, in the laboratory...
July 2017: Science Advances
https://www.readbyqxmd.com/read/28769882/physically-triggered-morphology-changes-in-a-novel-acremonium-isolate-cultivated-in-precisely-engineered-microfabricated-environments
#6
Laura Catón, Andrey Yurkov, Marcel Giesbers, Jan Dijksterhuis, Colin J Ingham
Fungi are strongly affected by their physical environment. Microfabrication offers the possibility of creating new culture environments and ecosystems with defined characteristics. Here, we report the isolation of a novel member of the fungal genus Acremonium using a microengineered cultivation chip. This isolate was unusual in that it organizes into macroscopic structures when initially cultivated within microwells with a porous aluminum oxide (PAO) base. These "templated mycelial bundles" (TMB) were formed from masses of parallel hyphae with side branching suppressed...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28767661/impact-of-stress-fear-and-anxiety-on-the-nociceptive-responses-of-larval-zebrafish
#7
Javier Lopez-Luna, Qussay Al-Jubouri, Waleed Al-Nuaimy, Lynne U Sneddon
Both adult and larval zebrafish have been demonstrated to show behavioural responses to noxious stimulation but also to potentially stress- and fear or anxiety- eliciting situations. The pain or nociceptive response can be altered and modulated by these situations in adult fish through a mechanism called stress-induced analgesia. However, this phenomenon has not been described in larval fish yet. Therefore, this study explores the behavioural changes in larval zebrafish after noxious stimulation and exposure to challenges that can trigger a stress, fear or anxiety reaction...
2017: PloS One
https://www.readbyqxmd.com/read/28765585/multi-color-single-molecule-tracking-and-subtrajectory-analysis-for-quantification-of-spatiotemporal-dynamics-and-kinetics-upon-t-cell-activation
#8
Yuma Ito, Kumiko Sakata-Sogawa, Makio Tokunaga
The dynamic properties of molecules in living cells are attracting increasing interest. We propose a new method, moving subtrajectory analysis using single-molecule tracking, and demonstrate its utility in the spatiotemporal quantification of not only dynamics but also the kinetics of interactions using single-color images. Combining this technique with three-color simultaneous single-molecule imaging, we quantified the dynamics and kinetics of molecules in spatial relation to T cell receptor (TCR) microclusters, which trigger TCR signaling...
August 1, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28764682/informing-tobacco-control-policy-in-jordan-assessing-the-effectiveness-of-pictorial-warning-labels-on-cigarette-packs
#9
Rasha K Bader, Rawan A Shihab, Dalia H Al-Rimawi, Feras I Hawari
BACKGROUND: Pictorial warning labels (PWLs) deter initiation and motivate quitting. Assessing PWLs is important to track effectiveness and wear out. Jordan introduced an updated set of PWLs in 2013. This study assessed the effectiveness of the set after 2.5 years on the market. METHODS: We administered a survey in a cross-sectional sample of young adults aged 17-26 years. For convenience, respondents were recruited on university campuses. For heterogeneity, respondents were solicited from the different schools in four geographically diverse university campuses...
August 1, 2017: BMC Public Health
https://www.readbyqxmd.com/read/28751194/biaxial-loading-of-arterial-tissues-with-3d-in-situ-observations-of-adventitia-fibrous-microstructure-a-method-coupling-multi-photon-confocal-microscopy-and-bulge-inflation-test
#10
Cristina Cavinato, Clementine Helfenstein-Didier, Thomas Olivier, Sabine Rolland du Roscoat, Norbert Laroche, Pierre Badel
Disorders in the wall microstructure underlie all forms of vascular disease, such as the aortic aneurysm, the rupture of which is necessarily triggered at the microscopic level. In this context, we developed an original experimental approach, coupling a bulge inflation test to multiphoton confocal microscopy, for visualizing the 3D micro-structure of porcine, human non-aneurysmal and aneurysmal aortic adventitial collagen under increasing pressurization. The experiment complexity on such tissues led to deeply address the acquisition major hurdles...
July 19, 2017: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/28741598/plasmonic-enhancement-of-cyanine-dyes-for-near-infrared-light-triggered-photodynamic-photothermal-therapy-and-fluorescent-imaging
#11
Mindan Lu, Ning Kang, Chuan Chen, Liuqing Yang, Yang Li, Minghui Hong, Xiangang Luo, Lei Ren, Xiumin Wang
Near infrared (NIR) triggered cyanine dyes have attracted considerable attentions in multi-modal tumor theranostics. However, near infrared (NIR) cyanine dyes used in tumor treatment often suffer from low fluorescence intensity and weak singlet oxygen generation efficiency, resulting in inadequate diagnostic and therapy efficacies for tumors. It is still a great challenge to improve both the photodynamic therapy (PDT) and fluorescent imaging (FLI) efficacy of cyanine dyes in tumor applications. Herein, a novel multifunctional nanoagent of AuNRs@SiO2-IR795 was developed to realize the integrated photothermal/photodynamic therapy (PTT/PDT) and FLI at a very low dosage of IR795 (0...
July 25, 2017: Nanotechnology
https://www.readbyqxmd.com/read/28727490/comparison-of-the-release-of-micrornas-and-extracellular-vesicles-from-platelets-in-response-to-different-agonists
#12
Ashley R Ambrose, Mohammed A Alsahli, Sameer A Kurmani, Alison H Goodall
On activation platelets release microRNAs and extracellular vesicles (EV) into circulation. The release of EV from platelets has been shown to be dependent on the agonist; in this study, we investigated whether the microRNA profile or EV released from platelets was also agonist specific. Washed platelets from healthy subjects were maximally stimulated with agonists specific for the receptors for collagen (Glycoprotein VI (GPVI)), thrombin (PAR1/PAR4), or ADP (P2Y1/P2Y12) with/without inhibiting secondary mediators, using aspirin to block cyclooxygenase-1 and apyrase to remove ADP...
July 20, 2017: Platelets
https://www.readbyqxmd.com/read/28719007/validating-activity-indices-from-camera-traps-for-commensal-rodents-and-other-wildlife-in-and-around-farm-buildings
#13
Mark Lambert, Fiona Bellamy, Richard Budgey, Rebecca Callaby, Julia Coats, Janet Talling
BACKGROUND: Indices of rodent activity are used as indicators of population change during field evaluation of rodenticides. We investigated the potential for using camera traps to determine activity indices for commensal rodents living in and around farm buildings, and sought to compare these indices against previously calibrated survey methods. RESULTS: We recorded 41, 263 images of 23 species including Norway rats (Rattus norvegicus Berk.) and house mice (Mus musculus L...
July 18, 2017: Pest Management Science
https://www.readbyqxmd.com/read/28715639/probing-gelation-and-rheological-behavior-of-a-self-assembled-molecular-gel
#14
Seyed Meysam Hashemnejad, Santanu Kundu
Molecular gels have been investigated over the last few decades; however, mechanical behavior of these self-assembled gels is not well understood, particularly how these materials fail at large strain. Here, we report the gelation and rheological behavior of a molecular gel formed by self-assembly of a low molecular weight gelator (LMWG), di-Fmoc-l-lysine, in 1-propanol/water mixture. Gels were prepared by solvent-triggered technique, and gelation was tracked using Fourier transform infrared (FTIR) spectroscopy and shear rheology...
July 27, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/28715307/taking-on-the-obesity-epidemic-researchers-wage-a-big-fat-fight-in-efforts-to-combat-this-global-health-issue
#15
Leslie Mertz
If obesity were tied only to too much food or too little physical activity, the cure would be a simple matter of counting calories or keeping track of steps with a pedometer. Unfortunately, obesity is much more complex. Many other factors come into play, including so-called hunger genes that make a person more susceptible to obesity, infection with certain pathogens linked to weight gain, hormones that dampen or stimulate appetite, sleep disruption that can trigger overeating, and social networks that can promote obesity...
July 2017: IEEE Pulse
https://www.readbyqxmd.com/read/28709267/aggregation-and-fragmentation-dynamics-in-random-flows-from-tracers-to-inertial-aggregates
#16
Ksenia Guseva, Ulrike Feudel
We investigate the aggregation and fragmentation dynamics of tracers and inertial aggregates in random flows leading to steady-state size distributions. Our objective is to elucidate the impact of changes in aggregation rates due to differences in advection dynamics, especially with respect to the influence of inertial effects. This aggregation process is, at the same time, balanced by fragmentation triggered by local hydrodynamic stress. Our study employs an individual-particle-based model, tracking the position, velocity, and size of each aggregate...
June 2017: Physical Review. E
https://www.readbyqxmd.com/read/28685751/meniscus-assisted-solution-printing-of-large-grained-perovskite-films-for-high-efficiency-solar-cells
#17
Ming He, Bo Li, Xun Cui, Beibei Jiang, Yanjie He, Yihuang Chen, Daniel O'Neil, Paul Szymanski, Mostafa A Ei-Sayed, Jinsong Huang, Zhiqun Lin
Control over morphology and crystallinity of metal halide perovskite films is of key importance to enable high-performance optoelectronics. However, this remains particularly challenging for solution-printed devices due to the complex crystallization kinetics of semiconductor materials within dynamic flow of inks. Here we report a simple yet effective meniscus-assisted solution printing (MASP) strategy to yield large-grained dense perovskite film with good crystallization and preferred orientation. Intriguingly, the outward convective flow triggered by fast solvent evaporation at the edge of the meniscus ink imparts the transport of perovskite solutes, thus facilitating the growth of micrometre-scale perovskite grains...
July 7, 2017: Nature Communications
https://www.readbyqxmd.com/read/28685388/a-mobile-health-application-to-track-patients-after-gastrointestinal-surgery-results-from-a-pilot-study
#18
Matthew M Symer, Jonathan S Abelson, Jeffrey Milsom, Bridget McClure, Heather L Yeo
INTRODUCTION: Many surgical readmissions are preventable. Mobile health technology can identify nascent complications and potentially prevent readmission. METHODS: We performed a pilot study of a new mobile health application in adults undergoing major abdominal surgery. Patients reported their pain, answered surveys, photographed their wound, were reminded to stay hydrated, and used a Fitbit™ device. Abnormal responses triggered alerts for further evaluation...
July 6, 2017: Journal of Gastrointestinal Surgery: Official Journal of the Society for Surgery of the Alimentary Tract
https://www.readbyqxmd.com/read/28684466/pharyngeal-stimulation-with-sugar-triggers-local-searching-behavior-in-drosophila
#19
Satoshi Murata, Axel Brockmann, Teiichi Tanimura
Foraging behavior is essential for all organisms to find food containing nutritional chemicals. A hungry fly of Drosophila melanogaster performs local searching behavior after drinking a small amount of sugar solution. Using video tracking we examined how the searching behavior is regulated in D. melanogaster We found that a small amount of highly concentrated sugar solution induced a long-lasting searching behavior. After the intake of sugar solution, a fly moved around in circles and repeatedly returned to the position where the sugar droplet had been placed...
July 6, 2017: Journal of Experimental Biology
https://www.readbyqxmd.com/read/28681328/diagnosis-narrative-identity-and-asymptomatic-disease
#20
Mary Jean Walker, Wendy A Rogers
An increasing number of patients receive diagnoses of disease without having any symptoms. These include diseases detected through screening programs, as incidental findings from unrelated investigations, or via routine checks of various biological variables like blood pressure or cholesterol. In this article, we draw on narrative identity theory to examine how the process of making sense of being diagnosed with asymptomatic disease can trigger certain overlooked forms of harm for patients. We show that the experience of asymptomatic disease can involve 'mismatches' between one's beliefs about one's health status on the one hand, and bodily sensations or past experience on the other...
August 2017: Theoretical Medicine and Bioethics
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