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https://www.readbyqxmd.com/read/29138912/long-term-follow-up-after-non-operative-management-of-blunt-splenic-and-liver-injuries-a-questionnaire-based-survey
#1
Peter Moreno, Matthias Von Allmen, Tobias Haltmeier, Daniel Candinas, Beat Schnüriger
BACKGROUND: Non-operative management (NOM) of blunt splenic or liver injuries (solid organ injury, SOI) has become the standard of care in hemodynamically stable patients. However, the incidence of long-term symptoms in these patients is currently not known. The aim of this study was to assess long-term symptoms in patients undergoing successful NOM (sNOM) for SOI. METHODS: Long-term posttraumatic outcomes including chronic abdominal pain, irregular bowel movements, and recurrent infections were assessed using a specifically designed questionnaire and analyzed by univariable analysis...
November 14, 2017: World Journal of Surgery
https://www.readbyqxmd.com/read/29132930/a-novel-algorithm-increases-the-delivery-of-effective-cardiac-resynchronization-therapy-during-atrial-fibrillation-the-crtee-randomized-cross-over-trial
#2
Christopher J Plummer, Christopher M Frank, Zsolt Bári, Yahya S Al Hebaishi, Ruth Nicholson Klepfer, Robert W Stadler, Subham Ghosh, Shufeng Liu, Suneet Mittal
BACKGROUND: Cardiac resynchronization therapy (CRT) requires a high % of ventricular pacing (%Vp) to maximize its clinical benefits. Atrial fibrillation (AF) has been shown to reduce %Vp in CRT due to competition with irregular intrinsic atrio-ventricular (AV) conduction. We report the results of a prospective randomized cross-over trial evaluating the amount of effective CRT delivered during AF with a novel algorithm (eCRTAF). OBJECTIVE: To determine whether eCRTAF increases the amount of effective CRT delivered during AF when compared to a currently available rate regularization algorithm...
November 10, 2017: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/29131593/formulation-and-composition-effects-in-phase-transitions-of-emulsions-co-stabilized-by-cellulose-nanofibrils-and-an-ionic-surfactant
#3
Siqi Huan, Shingo Yokota, Long Bai, Mariko Ago, Maryam Borghei, Tetsuo Kondo, Orlando J Rojas
Cellulose nanofibrils (CNF) offer great prospects as a natural stabilizer of colloidal dispersions and complex fluids for application in food, pharma, and cosmetics. In this study, an ionic surfactant (sodium dodecyl sulfate, SDS) was used as emulsifier of oil-in-water and water-in-oil emulsions that were further co-stabilized by addition of CNF. The adsorption properties of SDS in both, CNF dispersions and emulsions, as well as the influence of composition (CNF and SDS concentration) and formulation (ionic strength, oil and CNF types) on the phase behavior were elucidated and described in the framework of Windsor systems...
November 13, 2017: Biomacromolecules
https://www.readbyqxmd.com/read/29128974/estimating-the-fluctuation-of-lake-hulun-china-during-1975-2015-from-satellite-altimetry-data
#4
Ying Liu, Hui Yue
Lake level, area, and volume changes can describe the fluctuation of water bodies. In this study, ICESat/Hydroweb and Landsat data recorded with irregularly time intervals from 1975 to 2015 were used to examine changes in lake level and area which were combined to indirectly estimate water volume variations of Lake Hulun. The time series of lake level, area, and volume variations of Lake Hulun exhibited a fluctuating trend from 1975 to 1984 and the mean value were about 542.57 m, 2065.76 km(2), and - 0.045 km(3), respectively and an increasing trends showed during 1984-2000...
November 11, 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/29128728/novel-synthesis-of-cyano-functionalized-mesoporous-silica-nanospheres-msn-from-coal-fly-ash-for-removal-of-toxic-metals-from-wastewater
#5
Bangda Wang, Yuexi Zhou, Lei Li, Hui Xu, Yinglong Sun, Yi Wang
Trace amounts of toxic metals are usually difficult to be purified by conventional chemical precipitation or physical adsorption in wastewater. In this study, in order to realize high-value utilization of coal fly ash for wastewater purification, a novel method was applied to prepare high-performance mesoporous silica materials from coal fly ash. In comparison with a commonly used method, characterizations revealed that the new method obtained mesoporous silica nanospheres with uniformly distributed cyano groups (denoted by MSN), while the common method only obtained irregular sponge-like microstructure (denoted by ISM)...
November 1, 2017: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/29111057/resol-based-chitosan-nano-hydroxyapatite-nanoensemble-for-effective-bone-tissue-engineering
#6
Mohammad Shakir, Reshma Jolly, Aijaz Ahmed Khan, Syed Sayeed Ahmed, Sharique Alam, Mohd Ahmar Rauf, Mohd Owais, Mohd Ahmadullah Farooqi
It is the first report where different amounts of resol resin (RS) were incorporated with chitosan-hydroxyapatite (CHA) to develop a triconstituent nanoensemble CHA-RS(0.5,1,2), via simple co-precipitation method. The results of SEM, TEM, TGA and mechanical analysis revealed irregular interconnected rough morphology with homogenous distribution of needle shaped particles having average size ranging between 12 and 19nm, possessing higher thermal stability and mechanical strength, respectively relative to CHA (binary) nanocomposite...
January 1, 2018: Carbohydrate Polymers
https://www.readbyqxmd.com/read/29104609/a-discrete-transition-zone-between-cuticle-and-cortex-layers-of-a-human-hair-fibre-changes-observed-in-the-presence-of-breast-cancer
#7
Donald Lyman, Paula Gerstmann
Attenuated total reflection Fourier transform infrared (ATR-FT-IR) spectroscopy of hair fibres shows a discrete transition zone (DTZ) between the hard protective cuticle layer and the softer elongated cortical cells of the cortex. The DTZ is composed of flattened orthocortical cells located on the outer perimeter of the cortex and appears to range in thickness between 2 and 3.6 μm. The inner surface of the DTZ, adjacent to the elongated cortical cells that make up the core of the hair fibre, is irregular. ATR-FT-IR analyses of these flattened orthocortical cells indicate major changes in the molecular structure of keratins found in this transition zone...
2017: Ecancermedicalscience
https://www.readbyqxmd.com/read/29104115/lowered-ipla2%C3%AE-activity-causes-increased-mitochondrial-lipid-peroxidation-and-mitochondrial-dysfunction-in-a-rotenone-induced-model-of-parkinson-s-disease
#8
Honglu Chao, Yinlong Liu, Xian Fu, Xiupeng Xu, Zhongyuan Bao, Chao Lin, Zheng Li, Yan Liu, Xiaoming Wang, Yongping You, Ning Liu, Jing Ji
iPLA2γ, calcium-independent phospholipase A2γ, discerningly hydrolyses glycerophospholipids to liberate free fatty acids. iPLA2γ-deficiency has been associated with abnormal mitochondrial function. More importantly, the iPLA2 family is causative proteins in mitochondrial neurodegenerative disorders such as parkinsonian disorders. However, the mechanisms by which iPLA2γ affects Parkinson's disease (PD) remain unknown. Mitochondrion stress has a key part in rotenone-induced dopaminergic neuronal degeneration...
November 2, 2017: Experimental Neurology
https://www.readbyqxmd.com/read/29100092/mutations-in-fibronectin-cause-a-subtype-of-spondylometaphyseal-dysplasia-with-corner-fractures
#9
Chae Syng Lee, He Fu, Nissan Baratang, Justine Rousseau, Heena Kumra, V Reid Sutton, Marcello Niceta, Andrea Ciolfi, Guilherme Yamamoto, Débora Bertola, Carlo L Marcelis, Dorien Lugtenberg, Andrea Bartuli, Choel Kim, Julie Hoover-Fong, Nara Sobreira, Richard Pauli, Carlos Bacino, Deborah Krakow, Jillian Parboosingh, Patrick Yap, Ariana Kariminejad, Marie T McDonald, Mariana I Aracena, Ekkehart Lausch, Sheila Unger, Andrea Superti-Furga, James T Lu, Dan H Cohn, Marco Tartaglia, Brendan H Lee, Dieter P Reinhardt, Philippe M Campeau
Fibronectin is a master organizer of extracellular matrices (ECMs) and promotes the assembly of collagens, fibrillin-1, and other proteins. It is also known to play roles in skeletal tissues through its secretion by osteoblasts, chondrocytes, and mesenchymal cells. Spondylometaphyseal dysplasias (SMDs) comprise a diverse group of skeletal dysplasias and often manifest as short stature, growth-plate irregularities, and vertebral anomalies, such as scoliosis. By comparing the exomes of individuals with SMD with the radiographic appearance of "corner fractures" at metaphyses, we identified three individuals with fibronectin (FN1) variants affecting highly conserved residues...
November 2, 2017: American Journal of Human Genetics
https://www.readbyqxmd.com/read/29094682/hindwings-of-insects-as-concept-generator-for-hingeless-foldable-shading-systems
#10
Gundula Schieber, Larissa Born, Paavo Bergmann, Axel Hannes Körner, Anja Mader, Saman Saffarian, Oliver Betz, Markus Milwich, Goetz Gresser, Jan Knippers
Hingeless shading systems inspired by nature are increasingly the focus of architectural research. In contrast to traditional systems, these compliant mechanisms can reduce the amount of maintenance-intensive parts and can easily be adapted to irregular, doubly curved, facade geometries. Previous mechanisms rely merely on the reversible material deformation of composite structures with almost homogeneous material properties. This leads to large actuation forces and an inherent conflict between the requirements of movement and the capacity to carry external loads...
November 2, 2017: Bioinspiration & Biomimetics
https://www.readbyqxmd.com/read/29081939/development-of-an-automatic-dispensing-system-for-traditional-chinese-herbs
#11
Chi-Ying Lin, Ping-Jung Hsieh
The gathering of ingredients for decoctions of traditional Chinese herbs still relies on manual dispensation, due to the irregular shape of many items and inconsistencies in weights. In this study, we developed an automatic dispensing system for Chinese herbal decoctions with the aim of reducing manpower costs and the risk of mistakes. We employed machine vision in conjunction with a robot manipulator to facilitate the grasping of ingredients. The name and formulation of the decoction are input via a human-computer interface, and the dispensing of multiple medicine packets is performed automatically...
2017: Journal of Healthcare Engineering
https://www.readbyqxmd.com/read/29066881/entropy-change-of-biological-dynamics-in-copd
#12
REVIEW
Yu Jin, Chang Chen, Zhixin Cao, Baoqing Sun, Iek Long Lo, Tzu-Ming Liu, Jun Zheng, Shixue Sun, Yan Shi, Xiaohua Douglas Zhang
In this century, the rapid development of large data storage technologies, mobile network technology, and portable medical devices makes it possible to measure, record, store, and track analysis of large amount of data in human physiological signals. Entropy is a key metric for quantifying the irregularity contained in physiological signals. In this review, we focus on how entropy changes in various physiological signals in COPD. Our review concludes that the entropy change relies on the types of physiological signals under investigation...
2017: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/29062770/dependence-of-dynamic-contour-and-goldmann-applanation-tonometries-on-peripheral-corneal-thickness
#13
Federico Saenz-Frances, Claudia Sanz-Pozo, Lara Borrego-Sanz, Luis Jañez, Laura Morales-Fernandez, Jose Maria Martinez-de-la-Casa, Julian Garcia-Sanchez, Julian Garcia-Feijoo, Enrique Santos-Bueso
AIM: To determine the effects of peripheral corneal thickness (PCT) on dynamic contour tonometry(DCT) and Goldmann applanation tonometry (GAT). METHODS: A cross-sectional study. We created a software which calculates the corneal contour (CC) as a function of the radius from the corneal apex to each pixel of the contour. The software generates a central circumference with a radius of 1 mm and the remainder of the cornea is segmented in 5 rings concentric with corneal apex being its diameter not constant around the corneal circumference as a consequence of the irregular CC but keeping constant the diameter of each ring in each direction of the contour...
2017: International Journal of Ophthalmology
https://www.readbyqxmd.com/read/29060084/identifying-personal-health-experience-tweets-with-deep-neural-networks
#14
Keyuan Jiang, Ravish Gupta, Matrika Gupta, Ricardo A Calix, Gordon R Bernard
Twitter, as a social media platform, has become an increasingly useful data source for health surveillance studies, and personal health experiences shared on Twitter provide valuable information to the surveillance. Twitter data are known for their irregular usages of languages and informal short texts due to the 140 character limit, and for their noisiness such that majority of the posts are irrelevant to any particular health surveillance. These factors pose challenges in identifying personal health experience tweets from the Twitter data...
July 2017: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/29058364/enhanced-red-emission-from-bamoo4-eu-3-by-bi-3-co-doping
#15
Wenqin Luo, Danping Ling, Susu Bao, Huifang Xiong, Rui Zhang, Bin Li, Haiyan Wu
A series of Bi(3+) ,Eu(3+) -doped BaMoO4 phosphors was synthesized using a hydrothermal method. The crystal structure, morphology and optical properties of the phosphors were studied using X-ray diffraction (XRD), scanning electron microscope (SEM) and photoluminescence (PL) measurements. Three different particle morphologies were detected in the SEM observation. The energy dispersive spectroscopy (EDS) results indicated that the solubility of Bi(3+) in spherical or rugby-like BaMoO4 particles was very low and the excess Bi(3+) element was cumulated in the irregular particles...
October 23, 2017: Luminescence: the Journal of Biological and Chemical Luminescence
https://www.readbyqxmd.com/read/29043860/development-and-in-vitro-in-vivo-evaluation-of-hpmc-chitosan-gel-containing-simvastatin-loaded-self-assembled-nanomicelles-as-a-potent-wound-healing-agent
#16
Jaleh Varshosaz, Somayeh Taymouri, Mohsen Minaiyan, Fatemeh Rastegarnasab, Azar Baradaran
The aim of this study was to develop hydroxypropyl methyl cellulose (HPMC)/chitosan gel containing polymeric micelles loaded with simvastatin (Sim) and evaluates its wound healing properties in rats. An irregular full factorial design was employed to evaluate the effects of various formulation variables including polymer/drug ratio, hydration temperature, hydration time and organic solvent type on the physicochemical characteristics of pluronic F127-cholesterol nanomicelles prepared using the film hydration method...
October 18, 2017: Drug Development and Industrial Pharmacy
https://www.readbyqxmd.com/read/29043711/the-many-guises-of-endometriosis-giant-abdominal-wall-endometriosis-masquerading-as-an-incisional-hernia
#17
Chiara Petrosellini, Sala Abdalla, Tayo Oke
Endometriosis is defined by the presence of ectopic endometrial tissue outside the uterine cavity. Although it is a leading cause of chronic pelvic pain and infertility, its clinical presentation can vary, resulting in diagnostic and therapeutic challenges. Extrapelvic endometriosis is particularly difficult to diagnose owing to its ability to mimic other conditions. Endometrial tissue in a surgical scar is uncommon and often misdiagnosed as a granuloma, abscess, or malignancy. Cyclical hemorrhagic ascites due to peritoneal endometriosis is exceptionally rare...
January 2018: International Journal of Fertility & Sterility
https://www.readbyqxmd.com/read/29043097/histological-study-on-the-effect-of-nicotine-on-adult-male-guinea-pig-thin-skin
#18
Sohair A Eltony, Safaa S Ali
Tobacco smoking has been identified as an important factor in premature skin aging to detect the histological changes occurred in adult male guinea pig thin skin under the influence of low and high doses of nicotine; which constitutes approximately 0.6%-3.0% of the dry weight of tobacco. Fifteen adult male pigmented guinea pigs were equally divided into three groups: group I, control; group IIA, low dose nicotine treated; 3 mg/kg subcutaneously for 4 weeks; and group IIB, high dose nicotine treated; 6 mg/kg subcutaneously for 4 weeks...
September 2017: Anatomy & Cell Biology
https://www.readbyqxmd.com/read/29037465/influence-of-exposure-time-on-the-release-of-bacteria-from-a-biofilm-on-ti6al4v-discs-using-sonication-an-in-vitro-model
#19
Laura Prieto-Borja, Ana Conde, María A Arenas, Juan J de Damborenea, Jaime Esteban
Implant sonication is considered a useful method for the diagnosis of implant-related infections. We designed an in vitro study using Ti6Al4V discs and 5 different bacteria to determine the optimal sonication time for recovery of most bacteria tested to enable use of sonication in clinical practice for microbiological diagnosis of implant-related infections. We carried out a specific protocol for the adherence and subsequent biofilm formation on the materials used. The discs were then sonicated and the retrieved bacteria were quantified...
August 25, 2017: Diagnostic Microbiology and Infectious Disease
https://www.readbyqxmd.com/read/29034523/immobilised-electrocatalysts-nafion-particles-doped-with-ruthenium-ii-tris-2-2-bipyridyl
#20
Haiying Yang, Xiuting Li, Christopher Batchelor-McAuley, Stanislav V Sokolov, Enno Kätelhön, Richard G Compton
Nafion particles novelly doped with ruthenium (II) tris(2,2'-bipyridyl) are synthesized by using the re-precipitation method. Characterization including SEM sizing and quantification of Ru(bpy)32+ in the Nafion particles via UV-Vis spectroscopy was conducted. The synthesized Ru-Nafion particles were investigated electrochemically at both ensemble and single particle levels. Voltammetry of the drop-cast Ru-Nafion particles evidences the successful incorporation of Ru(bpy)32+ into the Nafion particle but only a small fraction of the incorporated Ru(bpy)32+ was detected due at least in part to the formation of the likely agglomerated and irregular 'mat' associated with the dropcast technique...
October 16, 2017: Chemistry: a European Journal
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