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https://www.readbyqxmd.com/read/28524800/swelling-mechanism-of-urea-crosslinked-starch-lignin-films-in-water
#1
Ariyanti Sarwono, Zakaria Man, M Azmi Bustam, Duvvuri Subbarao, Alamin Idris, Nawshad Muhammad, Amir Sada Khan, Zahoor Ullah
Coating fertilizer particles with thin films is a possibility to control the fertilizer release rates. It is observed that novel urea crosslinked starch-lignin composite thin films, prepared by solution casting, swell on coming into contact with water due to increase in volume by water uptake diffusion. The effect of lignin content, varied from 0% to 20% in steps of 5% and three different temperatures (25°C, 35°C and 45°C) on swelling of the film was investigated. By gravimetric analysis, the equilibrium water uptake and diffusion coefficient decrease with lignin content indicating that the addition of lignin increases the hydrophobicity of the films...
May 19, 2017: Environmental Technology
https://www.readbyqxmd.com/read/28497497/simultaneous-measurement-of-macro-and-microvascular-blood-flow-and-oxygen-saturation-for-quantification-of-muscle-oxygen-consumption
#2
Erin K Englund, Zachary B Rodgers, Michael C Langham, Emile R Mohler, Thomas F Floyd, Felix W Wehrli
PURPOSE: To investigate the relationship between blood flow and oxygen consumption in skeletal muscle, a technique called "Velocity and Perfusion, Intravascular Venous Oxygen saturation and T2*" (vPIVOT) is presented. vPIVOT allows the quantification of feeding artery blood flow velocity, perfusion, draining vein oxygen saturation, and muscle T2*, all at 4-s temporal resolution. Together, the measurement of blood flow and oxygen extraction can yield muscle oxygen consumption ( V˙O2) via the Fick principle...
May 11, 2017: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/28490143/method-for-sampling-and-analysis-of-volatile-biomarkers-in-process-gas-from-aerobic-digestion-of-poultry-carcasses-using-time-weighted-average-spme-and-gc-ms
#3
Jacek A Koziel, Lam T Nguyen, Thomas D Glanville, Heekwon Ahn, Timothy S Frana, J Hans van Leeuwen
A passive sampling method, using retracted solid-phase microextraction (SPME) - gas chromatography-mass spectrometry and time-weighted averaging, was developed and validated for tracking marker volatile organic compounds (VOCs) emitted during aerobic digestion of biohazardous animal tissue. The retracted SPME configuration protects the fragile fiber from buffeting by the process gas stream, and it requires less equipment and is potentially more biosecure than conventional active sampling methods. VOC concentrations predicted via a model based on Fick's first law of diffusion were within 6...
October 1, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28482513/modeling-the-permeability-of-multiaxial-electrospun-poly-%C3%AE%C2%B5-caprolactone-gelatin-hybrid-fibers-for-controlled-doxycycline-release
#4
Abdurizzagh Khalf, Sundararajan V Madihally
Recent advances in electrospinning allow the formation of multiple layers of micro and nanosize fibers to regulate drug/therapeutic agent release. Although there has been significant progress in fiber formation techniques and drug loading, fundamental models providing insights into controlling individual permeabilities is lacking. In this regard, we first explored forming coaxial hybrid fibers from hydrophobic poly(ε-caprolactone) (PCL) and hydrophilic gelatin (GT) in three different configurations, and the release of hydrophilic doxycycline (Dox) at 37°C over five days...
July 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28481803/breast-implant-associated-anaplastic-large-cell-lymphoma-in-australia-and-new-zealand-high-surface-area-textured-implants-are-associated-with-increased-risk
#5
Anna Loch-Wilkinson, Kenneth Beath, Robert John William Knight, William Louis Fick Wessels, Mark Magnusson, Tim Papadopoulos, Tony Connell, Julian Lofts, Michelle Locke, Ingrid Hopper, Rodney Cooter, Karen Vickery, Preeti Avinash Joshi, H Miles Prince, Anand K Deva
BACKGROUND: The association between breast implants and breast implant associated anaplastic large cell lymphoma (BIA-ALCL), has been confirmed. Implant related risk has been difficult to estimate due to incomplete or unknown implant histories and lack of clarity on the number of implants utilized. METHODS: All cases in Australia and New Zealand were identified and analyzed. Textured implants reported in this group were subjected to surface area analysis.Sales data from three leading breast implant manufacturers (Mentor/Allergan/Silimed) dating back to 1999 were secured to estimate implant specific risk...
May 5, 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28475926/headspace-oxygen-as-a-hurdle-to-improve-the-safety-of-in-pack-pasteurized-chilled-food-during-storage-at-different-temperatures
#6
Nydia Muñoz, Kanishka Bhunia, Hongchao Zhang, Gustavo V Barbosa-Cánovas, Juming Tang, Shyam Sablani
This study investigated the use of headspace oxygen in a model food system to prevent the growth of anaerobic pathogenic bacteria in in-pack pasteurized food at various storage temperatures. Three model food formulations prepared with tryptic soy broth and three agar concentrations (0.1, 0.4 and 1.0%) were sealed without removing the air from the package in high oxygen barrier pouches (OTR=0.3cm(3)/m(2)·day·atm). Important properties influencing bacterial growth, including pH and water activity (aw) were determined...
April 26, 2017: International Journal of Food Microbiology
https://www.readbyqxmd.com/read/28460901/non-invasive-measurement-of-oxygen-diffusion-in-model-foods
#7
Kanishka Bhunia, Shyam S Sablani, Juming Tang, Barbara Rasco
In this study, we developed a non-invasive method to determine oxygen diffusivity (DO2) in food gels using an Oxydot luminescence sensor. We designed and fabricated a transparent diffusion cell in order to represent oxygen transfer into foods packaged in an 8-ounce polymeric tray. Oxydots were glued to the sides (side-dot) and bottom (bottom-dot) of the cell and filled with 1, 2, and 3% (w/v) agar gel as a model food. After deoxygenation, local oxygen concentrations in the gels were measured non-invasively at 4, 12 and 22°C...
November 2016: Food Research International
https://www.readbyqxmd.com/read/28452908/measurement-of-oxygen-consumption-variations-in-critically-ill-burns-patients-are-the-fick-method-and-indirect-calorimetry-interchangeable
#8
Sabri Soussi, Fabrice Vallée, Florian Roquet, Vincent Bevilacqua, Mourad Benyamina, Axelle Ferry, Alexandru Cupaciu, Maïté Chaussard, Christian De Tymowski, David Boccara, Maurice Mimoun, Marc Chaouat, James Anstey, Alexandre Mebazaa, Matthieu Legrand
OBJECTIVES: To evaluate the interchangeability of oxygen consumption variations measured with the Fick equation (ΔVO2Fick) and indirect calorimetry (ΔVO2Haldane) in critically-ill burns patients. METHODS: Prospective observational single-center study conducted in a university hospital. Twenty-two consecutive burns patients with circulatory insufficiency and hyperlactatemia (>2 mmol/l) who required a fluid challenge (FC) were included. All patients had cardiac output (CO) monitoring (transpulmonary thermodilution technique) and were ventilated and sedated...
April 27, 2017: Shock
https://www.readbyqxmd.com/read/28450097/near-infrared-vein-visualization-in-index-finger-pollicization
#9
REVIEW
Brooks W Ficke, Erin F Ransom, Jean E Oakes
Near-infrared vein visualization devices allow for noninvasive identification of superficial veins. During index finger pollicization, preservation of the dorsal veins is important for protecting blood outflow from the digit. Near-infrared vein visualization devices can be used to identify the location of the dorsal veins prior to skin incision, allowing increased confidence during dissection. We describe the use of this device to identify veins during index finger pollicization.
April 25, 2017: Journal of Hand Surgery
https://www.readbyqxmd.com/read/28448673/network-for-investigation-of-delirium-across-the-u-s-nidus-advancing-the-field-of-delirium-with-a-new-interdisciplinary-research-network
#10
EDITORIAL
Donna M Fick, Andrew D Auerbach, Michael S Avidan, Jan Busby-Whitehead, E Wesley Ely, Richard N Jones, Edward R Marcantonio, Dale M Needham, Pratik Pandharipande, Thomas N Robinson, Eva M Schmitt, Thomas G Travison, Sharon K Inouye
No abstract text is available yet for this article.
May 1, 2017: Journal of Gerontological Nursing
https://www.readbyqxmd.com/read/28448537/mapping-of-quantitative-trait-loci-associated-with-resistance-to-net-form-net-blotch-pyrenophora-teres-f-teres-in-a-doubled-haploid-norwegian-barley-population
#11
Ronja Wonneberger, Andrea Ficke, Morten Lillemo
Barley net blotch caused by the necrotrophic fungus Pyrenophora teres is a major barley disease in Norway. It can cause grain shriveling and yield losses, and resistance in currently grown cultivars is insufficient. In this study, a set of 589 polymorphic SNP markers was used to map resistance loci in a population of 109 doubled haploid lines from a cross between the closely related Norwegian cultivars Arve (moderately susceptible) and Lavrans (moderately resistant). Resistance to three net form net blotch (P...
2017: PloS One
https://www.readbyqxmd.com/read/28444930/does-postexercise-modelled-capillary-blood-flow-accurately-reflect-cardiovascular-effects-by-different-exercise-intensities
#12
F Stöcker, C Von Oldershausen, F K Paternoster, T Schulz, R Oberhoffer
Blood flow (BF) in exercising muscles is an important factor for exercise capacity. Recently, a non-invasive method to estimate capillary BF (Qcap ) was introduced. Using this method, the Fick principle is re-arranged by using relative differences in deoxygenated haemoglobin (ΔHHb) as a surrogate for arteriovenous O2 difference and pulmonary oxygen uptake (VO2 ) instead of muscular oxygen uptake. The aim of this study was to examine (I) the relationship between Qcap and exercise intensity during and following exercise, and (II) to critically reflect the Qcap approach...
April 26, 2017: Clinical Physiology and Functional Imaging
https://www.readbyqxmd.com/read/28429291/correlation-of-carotid-blood-flow-and-corrected-carotid-flow-time-with-invasive-cardiac-output-measurements
#13
Irene W Y Ma, Joshua D Caplin, Aftab Azad, Christina Wilson, Michael A Fifer, Aranya Bagchi, Andrew S Liteplo, Vicki E Noble
BACKGROUND: Non-invasive measures that can accurately estimate cardiac output may help identify volume-responsive patients. This study seeks to compare two non-invasive measures (corrected carotid flow time and carotid blood flow) and their correlations with invasive reference measurements of cardiac output. Consenting adult patients (n = 51) at Massachusetts General Hospital cardiac catheterization laboratory undergoing right heart catheterization between February and April 2016 were included...
December 2017: Critical Ultrasound Journal
https://www.readbyqxmd.com/read/28417338/accessibility-accountability-affordability-healthcare-policy-in-orthopedic-trauma
#14
REVIEW
Renee C Genova, Rachel L Box, James R Ficke
PURPOSE OF REVIEW: This review provides historical background on trauma care in the USA and summarizes contemporary trauma-related health policy issues. It is a primer for orthopedic surgeons who want to promote improvements in research, delivery, and cost reduction in trauma care. RECENT FINDINGS: As of 2010, funding for trauma research accounted for only 0.02% of all National Institutes of Health research funding. This is disproportionate to the societal burden of traumatic injury, which is the leading cause of death and disability among people aged 1 to 46 years in the USA...
April 18, 2017: Current Reviews in Musculoskeletal Medicine
https://www.readbyqxmd.com/read/28415185/passive-scalars-mixing-diffusion-and-intermittency-in-helical-and-nonhelical-rotating-turbulence
#15
P Rodriguez Imazio, P D Mininni
We use direct numerical simulations to compute structure functions, scaling exponents, probability density functions, and effective transport coefficients of passive scalars in turbulent rotating helical and nonhelical flows. We show that helicity affects the inertial range scaling of the velocity and of the passive scalar when rotation is present, with a spectral law consistent with ∼k_{⊥}^{-1.4} for the passive scalar variance spectrum. This scaling law is consistent with a phenomenological argument [P...
March 2017: Physical Review. E
https://www.readbyqxmd.com/read/28392954/persistent-oxygen-requirement-beyond-prematurity-a-case-of-acquired-pulmonary-vein-stenosis
#16
Tyler A Fick, Bernadette Richards, Carl H Backes, Molly K Ball
Acquired pulmonary vein stenosis is a rare cardiac defect and diagnosis can often be challenging, as many cases present with refractory or prolonged oxygen requirement over the expected course. Comorbid conditions can cloud this diagnosis further. Prognosis is poor for most patients. We present a case of idiopathic acquired pulmonary vein stenosis and discuss diagnostics, treatment options, and the need for further collaborative studies.
2017: Case Reports in Pediatrics
https://www.readbyqxmd.com/read/28372651/non-invasive-cardiac-output-monitor-validation-study-in-pediatric-cardiac-surgery-patients
#17
Christopher F Tirotta, Richard G Lagueruela, Danielle Madril, Evelio Velis, Jorge Ojito, Daniel Monroe, David Aguero, Marysory Irizarry, John McBride, Robert L Hannan, Redmond P Burke
STUDY OBJECTIVE: To validate a non-invasive cardiac output monitor in pediatric cardiac surgery patients. DESIGN: Prospective trial. SETTING: Operating room. PATIENTS: 20 pediatric cardiac surgery patients ASA physical status 3 and 4. INTERVENTIONS: Aesculon noninvasive cardiac output monitor was used and compared to the cardiac output derived from the Fick equation. Oxygen consumption was measured and blood samples were taken from the arterial line and from the superior and inferior vena cava...
May 2017: Journal of Clinical Anesthesia
https://www.readbyqxmd.com/read/28350659/first-female-to-male-facial-confirmation-surgery-with-description-of-a-new-procedure-for-masculinization-of-the-thyroid-cartilage-adam-s-apple
#18
Jordan C Deschamps-Braly, Caitlin L Sacher, Jennifer Fick, Douglas K Ousterhout
Although male-to-female transgender patients commonly seek facial feminization surgery, facial masculinization surgery in the female-to-male transgender population is unreported in the literature. This report documents the first known female-to-male facial masculinization surgery, including a new technique for creating an "Adam's apple" to enhance the facial masculine appearance of a natal female. The authors "reversed" the methods typically used to feminize male facial features, and modified the forehead, nose, and chin to masculinize the patient's natal female facial features...
April 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28349263/how-to-decide-on-modeling-details-risk-and-benefit-assessment
#19
Mustafa Özilgen
Mathematical models based on thermodynamic, kinetic, heat, and mass transfer analysis are central to this chapter. Microbial growth, death, enzyme inactivation models, and the modeling of material properties, including those pertinent to conduction and convection heating, mass transfer, such as diffusion and convective mass transfer, and thermodynamic properties, such as specific heat, enthalpy, and Gibbs free energy of formation and specific chemical exergy are also needed in this task. The origins, simplifying assumptions, and uses of model equations are discussed in this chapter, together with their benefits...
March 28, 2017: Advances in Biochemical Engineering/biotechnology
https://www.readbyqxmd.com/read/28344390/algal-cultivation-in-urban-wastewater-an-efficient-way-to-reduce-pharmaceutical-pollutants
#20
Francesco G Gentili, Jerker Fick
The purpose of this study was to investigate whether pharmaceutical pollutants in urban wastewater can be reduced during algal cultivation. A mixed population of wild freshwater green algal species was grown on urban wastewater influent in a 650 L photobioreactor under natural light and with the addition of flue gases. Removal efficiencies were very high (>90 %), moderate (50-90 %), low (10-50 %), and very low or non-quantifiable (<10 %) for 9, 14, 11, and 18 pharmaceuticals, respectively, over a 7-day period...
2017: Journal of Applied Phycology
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