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https://www.readbyqxmd.com/read/29245098/the-pit-bull-attack-causing-limb-threatening-vascular-trauma-a-case-series
#1
Patrick Harnarayan, Shariful Islam, Christi Ramsingh, Vijay Naraynsingh
INTRODUCTION: Non-fatal human dog bites are commonplace amongst animal attacks on human beings and these present with mainly skin and soft tissue injuries. However, they can also present with life threatening head and neck injuries, massive soft tissue trauma, as well as combined orthopedic and vascular extremity injuries where a high possibility of limb loss exists. PRESENTATION OF CASES: We present two adult dog bite victims with multiple bites inflicted by large canines identified as Pit-Bull Terriers...
December 8, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/29245080/broadband-19f-tocsy-using-burbop-based-spin-lock
#2
Alexander A Marchione, Elizabeth L Diaz
A train of BURBOP universal rotation pulses has been used to generate a spin lock sufficient to observe TOCSY correlations over a 46 kHz 19F spectral window (i.e. 122 ppm on a 9.4 T spectrometer). This spin lock requires lower RF field (γB1 = 15 kHz), and was employed over a wider spectral window, than previously reported DIPSI-2 spin locks. The BURBOP-based spin lock was effected for 80-160 ms periods with a 2% duty cycle without evidence of harm to the RF coil of the probehead. Spectral separation and full set of correlations were obtained for a mixture of perfluorocarbons...
December 5, 2017: Journal of Magnetic Resonance
https://www.readbyqxmd.com/read/29243995/the-relationship-of-erectile-dysfunction-and-subclinical-cardiovascular-disease-a-systematic-review-and-meta-analysis
#3
Chukwuemeka U Osondu, Bryan Vo, Ebenezer T Oni, Michael J Blaha, Emir Veledar, Theodore Feldman, Arthur S Agatston, Khurram Nasir, Ehimen C Aneni
Erectile dysfunction (ED) is associated with cardiovascular disease (CVD) and CVD mortality. However, the relationship between ED and subclinical CVD is less clear. We synthesized the available data on the association of ED and measures of subclinical CVD. We searched multiple databases for published literature on studies examining the association of ED and measures of subclinical CVD across four domains: endothelial dysfunction measured by flow-mediated dilation (FMD), carotid intima-media thickness (cIMT), coronary artery calcification (CAC), and other measures of vascular function such as the ankle-brachial index, toe-brachial index, and pulse wave velocity...
December 1, 2017: Vascular Medicine
https://www.readbyqxmd.com/read/29243301/evaluation-of-the-live-biotherapeutic-product-asymptomatic-bacteriuria-escherichia-coli-2-12-in-healthy-dogs-and-dogs-with-clinical-recurrent-uti
#4
G Segev, J E Sykes, D J Klumpp, A J Schaeffer, E M Antaki, B A Byrne, R E Yaggie, J L Westropp
BACKGROUND: Antimicrobial resistance is an emerging problem. HYPOTHESIS/OBJECTIVE: To investigate the safety and efficacy of a live biotherapeutic product, ASB E. coli 2-12 for UTI treatment. ANIMALS: Six healthy research dogs; nine client-owned dogs with recurrent UTI. METHODS: Prospective noncontrolled clinical trial. For safety data, research dogs were sedated, a urinary catheter was inserted into the bladder; 1010 CFU/mL of ASB E...
December 15, 2017: Journal of Veterinary Internal Medicine
https://www.readbyqxmd.com/read/29243295/extended-phase-graph-formalism-for-systems-with-magnetization-transfer-and-exchange
#5
Shaihan J Malik, Rui Pedro A G Teixeira, Joseph V Hajnal
PURPOSE: An extended phase graph framework (EPG-X) for modeling systems with exchange or magnetization transfer (MT) is proposed. THEORY: EPG-X models coupled two-compartment systems by describing each compartment with separate phase graphs that exchange during evolution periods. There are two variants: EPG-X(BM) for systems governed by the Bloch-McConnell equations, and EPG-X(MT) for the pulsed MT formalism. For the MT case, the "bound" protons have no transverse components, so their phase graph consists of only longitudinal states...
December 15, 2017: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/29243248/uptake-kinetics-and-storage-capacity-of-dissolved-inorganic-phosphorus-and-corresponding-n-p-dynamics-in-ulva-lactuca-chlorophyta
#6
Alexander Lubsch, Klaas Timmermans
Dissolved inorganic phosphorus (DIP) is an essential macronutrient for maintaining metabolism and growth in autotrophs. Little is known about DIP-uptake kinetics and internal P-storage capacity in seaweeds, such as Ulva lactuca (Chlorophyta). Ulva lactuca is a promising candidate for biofiltration purposes and mass commercial cultivation. We exposed U. lactuca to a wide range of DIP concentrations (1 - 50 μmol · L-1 ) and a non-limiting concentration of dissolved inorganic nitrogen (DIN; 5000 μmol · L-1 ) under fully controlled laboratory conditions in a 'pulse-and-chase' assay over 10 days...
December 14, 2017: Journal of Phycology
https://www.readbyqxmd.com/read/29243086/utility-of-pulse-oximetry-to-detect-aspiration-an-evidence-based-systematic-review
#7
REVIEW
Deanna Britton, Amy Roeske, Stephanie K Ennis, Joshua O Benditt, Cassie Quinn, Donna Graville
Pulse oximetry is a commonly used means to measure peripheral capillary oxyhemoglobin saturation (SpO2). Potential use of pulse oximetry to detect aspiration is attractive to clinicians, as it is readily available, quick, and noninvasive. However, research regarding validity has been mixed. This systematic review examining evidence on the use of pulse oximetry to detect a decrease in SpO2 indicating aspiration during swallowing is undertaken to further inform clinical practice in dysphagia assessment. A multi-engine electronic search was conducted on 8/25/16 and updated on 4/8/17 in accordance with standards published by the Preferred Reporting for Items for Systematic Reviews and Meta-Analysis Protocols (PRISMA)...
December 14, 2017: Dysphagia
https://www.readbyqxmd.com/read/29242843/systemic-oxidoreductive-balance-and-vascular-function-in-individuals-without-clinical-manifestation-of-atherosclerosis
#8
Marcin Majer, Daniel Gackowski, Rafał Różalski, Agnieszka Siomek-Górecka, Ryszard Oliński, Jacek Budzyński
Introduction: Endothelial dysfunction is recognized as the earliest disorder in the development of atherosclerosis, in the pathogenesis of which oxidative stress plays a crucial role. The aim of this study was to determine the relationships between non-invasive parameters of vascular dysfunction and oxidative stress. Material and methods: Forty-eight individuals without clinical manifestation of atherosclerosis were studied. The plasma concentrations of the following were determined in all 48 subjects: retinol, ascorbic acid, α-tocopherol and uric acid, as well as the products of oxidative DNA damage repair: 8-oxo-7,8-dihydro-2'-deoxyguanosine (8-oxodG) in blood leukocytes and urine, and 8-oxo-7,8-dihydroguanine (8-oxoGua) in urine...
2017: Archives of Medical Sciences. Atherosclerotic Diseases
https://www.readbyqxmd.com/read/29242748/optimization-of-prostate-mri-acquisition-and-post-processing-protocol-a-pictorial-review-with-access-to-acquisition-protocols
#9
REVIEW
Ivan Jambor
The aim of this review article is to provide insight into the optimization of 1.5-Testla (T) and 3-T prostate magnetic resonance imaging (MRI). An approach for optimization of data quantification, especially diffusion-weighted imaging (DWI), is provided. Benefits and limitations of various pulse sequences are discussed. Importable MRI protocols and access to imaging datasets is provided. Careful optimization of prostate MR acquisition protocol allows the acquisition of high-quality prostate MRI using clinical 1...
December 2017: Acta Radiologica Open
https://www.readbyqxmd.com/read/29242621/fractal-analysis-of-collision-cascades-in-pulsed-ion-beam-irradiated-solids
#10
J B Wallace, L B Bayu Aji, L Shao, S O Kucheyev
The buildup of radiation damage in ion-irradiated crystals often depends on the spatial distribution of atomic displacements within collision cascades. Although collision cascades have previously been described as fractals, the correlation of their fractal parameters with experimental observations of radiation damage buildup remains elusive. Here, we use a pulsed-ion-beam method to study defect interaction dynamics in 3C-SiC irradiated at 100 °C with ions of different masses. These data, together with results of previous studies of SiC and Si, are analyzed with a model of radiation damage formation which accounts for the fractal nature of collision cascades...
December 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29242502/impact-of-electrode-position-on-the-elicitation-of-sodium-spikes-in-retinal-bipolar-cells
#11
Frank Rattay, Hassan Bassereh, Andreas Fellner
Bipolar cells of the magnocellular pathway in the primate retina can generate action potentials because they have an axonal segment with high sodium channel density, comparable to the sodium channel band in retinal ganglion cells or pyramidal cells. The similarity between the non-human primate and the human retina is of interest for the research on retinal implants for the blind, and especially, the conditions to elicit sodium spikes in bipolar cells using extracellular stimulation. A comparison of excitation characteristics of three model neurons, a bipolar cell, a retinal ganglion cell, and a cortical pyramidal cell, demonstrates the similarities and differences regarding stimulation with microelectrodes...
December 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29242469/a-new-diploid-species-belonging-to-the-i-odontophrynus-i-i-americanus-i-species-group-anura-odontophrynidae-from-the-espinha%C3%A3-o-range-brazil
#12
Pedro Carvalho Rocha, Letícia Moreira Ferraz DE Sena, Tiago Leite Pezzuti, Felipe Sá Fortes Leite, Marta Svartman, Sergio Daniel Rosset, Diego Baldo, Paulo Christiano DE Anchietta Garcia
The Odontophrynus americanus species group is a complex of diploid and tetraploid species hardly distinguished by morphological characters. It currently consists of three allopatric diploid species (i.e. O. cordobae, O. lavillai, and O. maisuma) and one widely distributed tetraploid species (i.e. O. americanus). We herein describe a new diploid allopatric species from campo rupestre, a typical phytophysiognomy of the Espinhaço Range, Brazil. The new species is distinguishable by the diploid complement of 2n = 2x = 22 chromosomes, small to medium-sized dorsal dark brown blotches with low contrast on a light brown background, light mid-dorsal stripe absent or greatly interrupted in most specimens with yellowish coloration as the background of both head and flanks of the body, advertisement call with dominant frequency of 840-1080 Hz, pulse rate of 90...
October 6, 2017: Zootaxa
https://www.readbyqxmd.com/read/29241663/model-selection-for-integrated-pest-management-with-stochasticity
#13
Olcay Akman, Timothy D Comar, Daniel Hrozencik
In [X. Song and Z. Xiang, 2006. The prey-dependent consumption two-prey one-predator models with stage structure for the predator and impulsive effects. Journal of Theoretical Biology, 242, 683-698.], an integrated pest management model with periodically varying climatic conditions was introduced. In order to address a wider range of environmental effects, the authors here have embarked upon a series of studies resulting in a more flexible modeling approach. In [O. Akman, T.D. Comar, and D. Hrozencik, 2013...
December 11, 2017: Journal of Theoretical Biology
https://www.readbyqxmd.com/read/29241396/critical-thresholds-of-icp-derived-continuous-cerebrovascular-reactivity-indices-for-outcome-prediction-in-non-craniectomized-tbi-patients-prx-pax-and-rac
#14
Frederick Adam Zeiler, Joseph Donnelly, Peter Smieleweski, David Menon, Peter John Hutchinson, Marek Czosnyka
To compare ICP derived cerebrovascular reactivity indices in their ability to predict 6-month outcome, and to determine/compare critical thresholds related to outcome for each index, in adult non-craniectomized traumatic brain injury (TBI). Using a retrospective cohort of non-decompressive craniectomy (non-DC) TBI patients, we performed univariate and multivariate binary logistic regression outcome analysis of: pressure reactivity index (PRx), pulse amplitude index (PAx) and a newly described index calculated as the Regression coefficient between intracranial pressure (ICP) waveform Amplitude and Cerebral perfusion pressure RAC (CPP)...
December 14, 2017: Journal of Neurotrauma
https://www.readbyqxmd.com/read/29241383/the-effect-of-prophylactic-oral-tranexamic-acid-plus-buccal-misoprostol-on-blood-loss-after-vaginal-delivery-a-randomized-controlled-trial
#15
Nahla W Shady, Hany F Sallam, Ahmed H Elsayed, Abdelrahman M Abdelkader, Shymaa S Ali, Ahmed Alanwar, Ahmed M Abbas
OBJECTIVE: To evaluate the effect of prophylactic oral tranexamic acid (TA) plus buccal misoprostol on the amount of blood loss after vaginal delivery in women at low risk for postpartum hemorrhage (PPH). MATERIALS AND METHODS: The study was a randomized open label clinical trial conducted in a tertiary University Hospital between January 2016 and June 2017. We included women who delivered vaginally with a singleton pregnancy. They were randomized into three groups: group I (women received 10 IU oxytocin IV after delivery of the baby), group II (women received 600 µg buccal misoprostol after delivery of the baby) and group III (women received 1000 mg oral TA at the end of the first stage of labor plus 600 µg buccal misoprostol after delivery of the baby)...
December 14, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/29241330/ultrasensitive-and-highly-stable-resistive-pressure-sensors-with-biomaterial-incorporated-interfacial-layers-for-wearable-health-monitoring-and-human-machine-interfaces
#16
Hochan Chang, Sungwoong Kim, Sumin Jin, Seung-Woo Lee, Gil-Tae Yang, Ki-Young Lee, Hyunjung Yi
Flexible piezoresistive sensors have huge potential for health-monitoring, human-machine interfaces, prosthetic limbs and intelligent robotics. A variety of nanomaterials and structural schemes have been proposed for realizing ultrasensitive flexible piezoresistive sensors. However, despite success of recent efforts, the high sensitivity within narrower pressure ranges and/or the challenging adhesion and stability issues still potentially limit their broad applications. Herein, we introduce a biomaterial-based scheme for the development of flexible pressure sensors that are ultrasensitive (resistance change by five orders) over broad pressure ranges of 0...
December 15, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29241154/effects-of-shock-waves-ultraviolet-light-and-electric-fields-from-pulsed-discharges-in-water-on-inactivation-of-escherichia-coli
#17
Bing Sun, Yanbin Xin, Xiaomei Zhu, Zhiying Gao, Zhiyu Yan, Takayuki Ohshima
In this work, the bacterial inactivation effects of shock waves, ultraviolet (UV) light, and electric field produced by high-voltage pulsed discharge in liquid with needle-plate configurations were studied. The contributions of each effect on the bacterial killing ratio in the discharge process were obtained individually by modifying reactor type and usage of glass, quartz, and black balloons. The results showed that the location from the discharge center axis significantly influenced the effects of shock waves and electric fields, although the effect of UV light was not affected by the location in the reactor...
December 2, 2017: Bioelectrochemistry
https://www.readbyqxmd.com/read/29241044/cooperative-broadband-spin-echoes-through-optimal-control
#18
Wolfgang Kallies, Steffen J Glaser
The Hahn echo sequence is one of the most common building blocks in magnetic resonance, consisting of an excitation pulse and a refocusing pulse. Conventional approaches to improve the performance of echo experiments focused on the optimization of individual pulses, compensating their own imperfections. Here we present an approach to concurrently design both pulses such that they also compensate each others imperfections. The fact that for such cooperative pulses the individual pulses do not need to be perfect provides additional degrees of freedom, resulting in improved overall Hahn echo performance...
November 22, 2017: Journal of Magnetic Resonance
https://www.readbyqxmd.com/read/29240426/p-carborane-conjugation-in-radical-anions-of-cage-cage-and-cage-phenyl-compounds
#19
Andrew R Cook, Michal Valášek, Alison M Funston, Pavel Poliakov, Josef Michl, John R Miller
Optical electron transfer (intervalence) transitions in radical anions of p-carborane oligomers attest to delocalization of electrons between two p-carboranes cages or a p-carborane and a phenyl ring. Oligomers of the twelve vertex p-carborane (C2B10H12) cage, [12], with up to 3 cages were synthesized, as well as p-carboranes with one or two trimethylsilylphenyl groups, [6], attached to the carbon termini. Pulse radiolysis in THF produced radical anions, determined redox potentials by equilibria and measured their absorption spectra...
December 14, 2017: Journal of Physical Chemistry. A
https://www.readbyqxmd.com/read/29240223/holy-flux-spatial-and-temporal-variation-in-massive-pulses-of-emerging-insect-biomass-from-western-u-s-rivers
#20
David M Walters, Jeff S Wesner, Robert E Zuellig, Dan A Kowalski, Matt C Kondratieff
No abstract text is available yet for this article.
December 14, 2017: Ecology
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