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https://www.readbyqxmd.com/read/27911393/a-detailed-protocol-for-perspiration-monitoring-using-a-novel-small-wireless-device
#1
Kazuhiro Ogai, Masakazu Fukuoka, Kei-Ichiro Kitamura, Kiyoshi Uchide, Tetsu Nemoto
Perspiration monitoring can be utilized for the detection of certain diseases, such as thermoregulation and mental disorders, particularly when the patients are unaware of such disorders or are having difficulty expressing their symptoms. Until now, several devices for perspiration monitoring have been developed; however, such devices tend to have a relatively large exterior, considerable power consumption, and/or less sensitivity. Recently, we developed a small, wireless device for perspiration monitoring...
November 24, 2016: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/27904162/impact-of-catheterization-lab-computer-software-settings-on-hemodynamic-assessment-of-aortic-stenosis
#2
Zaher Fanari, Anitha Rajamanickam, Mathew Grove, Sumaya Hammami, Cassie Walls, Paul Kolm, William Weintraub, Andrew J Doorey
BACKGROUND: Accurate assessment of Cardiac Output (CO) is a critical measurement in the calculation of aortic valve area (AVA). Due to the known inaccuracy of estimated Fick calculations, many measure thermodilution (TD) CO as well due to previous studies showing better correlation with the gold standard direct CO. Previous studies showed suboptimal correlation between both methods. Most physicians assume that the TD CO is chosen by catheterization laboratory software for AVA evaluation...
July 2016: Delaware Medical Journal
https://www.readbyqxmd.com/read/27890572/preservative-loss-from-silicone-tubing-during-filling-processes
#3
Verena Saller, Julia Matilainen, Christian Rothkopf, Daniel Serafin, Karoline Bechtold-Peters, Hanns-Christian Mahler, Wolfgang Friess
Significant loss of preservative was observed during filling of drug products during filling line stops. This study evaluated the losses of three commonly used preservatives in protein drugs, i.e. benzyl alcohol, phenol, and m-cresol. Concentration losses during static incubation were quantified and interpreted with regard to the potential driving forces for the underlying sorption, diffusion, and desorption steps. Partitioning from the solution into the silicone polymer was identified as the most decisive parameter for the extent of preservative loss...
November 23, 2016: European Journal of Pharmaceutics and Biopharmaceutics
https://www.readbyqxmd.com/read/27881556/nitrite-and-s-nitrosohemoglobin-exchange-across-the-human-cerebral-and-femoral-circulation-relationship-to-basal-and-exercise-blood-flow-responses-to-hypoxia
#4
Damian M Bailey, Peter Rasmussen, Morten Overgaard, Kevin A Evans, Aske M Bohm, Thomas Seifert, Patrice Brassard, Morten Zaar, Henning B Nielsen, Peter Raven, Niels H Secher
BACKGROUND: -The mechanisms underlying red blood cell (RBC)-mediated hypoxic vasodilation remain controversial with separate roles for nitrite (NO2(-)) and S-nitrosohemoglobin (SNO-Hb) widely contested given their ability to transduce nitric oxide (NO) bioactivity within the microcirculation. To establish their relative contribution in vivo, we quantified arterial-venous (a-v) concentration gradients across the human cerebral and femoral circulation at rest and during exercise, an ideal model system characterized by physiological extremes of O2 tension and blood flow...
November 15, 2016: Circulation
https://www.readbyqxmd.com/read/27866929/long-term-outcomes-of-pulmonary-arterial-hypertension-under-specific-drug-therapy-in-eisenmenger-syndrome
#5
Sébastien Hascoët, Alban-Elouen Baruteau, Marc Humbert, Gérald Simonneau, Xavier Jais, Jérôme Petit, Daniela Laux, Olivier Sitbon, Virginie Lambert, André Capderou
BACKGROUND: The long-term effectiveness of pulmonary arterial hypertension-specific drug therapy (PAH-SDT) in Eisenmenger syndrome is controversial. We investigated short-term and long-term hemodynamic changes under PAH-SDT and their associations with outcomes in a bicentric cohort. METHODS: Over 20 years, we included 69 patients with congenital heart disease, an indexed pulmonary vascular resistance (PVRi) >8 WU·m(2), and 292 standardized catheterizations at baseline and after PAH-SDT initiation or intensification...
October 15, 2016: Journal of Heart and Lung Transplantation
https://www.readbyqxmd.com/read/27866736/assessing-the-transport-of-pah-in-the-surficial-sediment-layer-by-passive-sampler-approach
#6
Angel Belles, Claire Alary, Justine Criquet, Anastasia Ivanovsky, Gabriel Billon
A new method based on passive samplers has been developed to assess the diffusive flux of fluorene, fluoranthene and pyrene in the sediment bed and across the sediment-water interface. The dissolved compound concentration gradient in the sediment in the vertical direction was measured at the outlet of a storm water pond by using polyethylene strips as passive samplers. Simultaneously, the dissipation of a set of tracer compounds preloaded in the passive samplers was measured to estimate the effective diffusion coefficients of the pollutants in the sediment...
November 17, 2016: Science of the Total Environment
https://www.readbyqxmd.com/read/27861718/effect-of-cognitively-stimulating-activities-on-symptom-management-of-delirium-superimposed-on-dementia-a-randomized-controlled-trial
#7
Ann Kolanowski, Donna Fick, Mark Litaker, Paula Mulhall, Linda Clare, Nikki Hill, Jacqueline Mogle, Malaz Boustani, David Gill, Andrea Yevchak-Sillner
OBJECTIVE: To determine whether cognitively stimulating activities would reduce duration and severity of delirium and improve cognitive and physical function to a greater extent than usual care. DESIGN: Single-blind randomized clinical trial. SETTING: Eight post-acute care (PAC) facilities. PARTICIPANTS: Community-dwelling older adults with dementia and delirium (N = 283). INTERVENTION: Research staff provided cognitively stimulating activities daily for up to 30 days...
November 12, 2016: Journal of the American Geriatrics Society
https://www.readbyqxmd.com/read/27858429/testing-hadronic-interactions-at-ultrahigh-energies-with-air-showers-measured-by-the-pierre-auger-observatory
#8
A Aab, P Abreu, M Aglietta, E J Ahn, I Al Samarai, I F M Albuquerque, I Allekotte, J D Allen, P Allison, A Almela, J Alvarez Castillo, J Alvarez-Muñiz, M Ambrosio, G A Anastasi, L Anchordoqui, B Andrada, S Andringa, C Aramo, F Arqueros, N Arsene, H Asorey, P Assis, J Aublin, G Avila, A M Badescu, C Baus, J J Beatty, K H Becker, J A Bellido, C Berat, M E Bertaina, X Bertou, P L Biermann, P Billoir, J Biteau, S G Blaess, A Blanco, J Blazek, C Bleve, H Blümer, M Boháčová, D Boncioli, C Bonifazi, N Borodai, A M Botti, J Brack, I Brancus, T Bretz, A Bridgeman, F L Briechle, P Buchholz, A Bueno, S Buitink, M Buscemi, K S Caballero-Mora, B Caccianiga, L Caccianiga, A Cancio, F Canfora, L Caramete, R Caruso, A Castellina, G Cataldi, L Cazon, R Cester, A G Chavez, A Chiavassa, J A Chinellato, J C Chirinos Diaz, J Chudoba, R W Clay, R Colalillo, A Coleman, L Collica, M R Coluccia, R Conceição, F Contreras, M J Cooper, S Coutu, C E Covault, J Cronin, R Dallier, S D'Amico, B Daniel, S Dasso, K Daumiller, B R Dawson, R M de Almeida, S J de Jong, G De Mauro, J R T de Mello Neto, I De Mitri, J de Oliveira, V de Souza, J Debatin, L Del Peral, O Deligny, N Dhital, C Di Giulio, A Di Matteo, M L Díaz Castro, F Diogo, C Dobrigkeit, J C D'Olivo, A Dorofeev, R C Dos Anjos, M T Dova, A Dundovic, J Ebr, R Engel, M Erdmann, M Erfani, C O Escobar, J Espadanal, A Etchegoyen, H Falcke, K Fang, G R Farrar, A C Fauth, N Fazzini, A P Ferguson, B Fick, J M Figueira, A Filevich, A Filipčič, O Fratu, M M Freire, T Fujii, A Fuster, F Gallo, B García, D Garcia-Pinto, F Gate, H Gemmeke, A Gherghel-Lascu, P L Ghia, U Giaccari, M Giammarchi, M Giller, D Głas, C Glaser, H Glass, G Golup, M Gómez Berisso, P F Gómez Vitale, N González, B Gookin, J Gordon, A Gorgi, P Gorham, P Gouffon, N Griffith, A F Grillo, T D Grubb, F Guarino, G P Guedes, M R Hampel, P Hansen, D Harari, T A Harrison, J L Harton, Q Hasankiadeh, A Haungs, T Hebbeker, D Heck, P Heimann, A E Herve, G C Hill, C Hojvat, N Hollon, E Holt, P Homola, J R Hörandel, P Horvath, M Hrabovský, T Huege, J Hulsman, A Insolia, P G Isar, I Jandt, S Jansen, C Jarne, J A Johnsen, M Josebachuili, A Kääpä, O Kambeitz, K H Kampert, P Kasper, I Katkov, B Keilhauer, E Kemp, R M Kieckhafer, H O Klages, M Kleifges, J Kleinfeller, R Krause, N Krohm, D Kuempel, G Kukec Mezek, N Kunka, A Kuotb Awad, D LaHurd, L Latronico, M Lauscher, P Lautridou, P Lebrun, R Legumina, M A Leigui de Oliveira, A Letessier-Selvon, I Lhenry-Yvon, K Link, L Lopes, R López, A López Casado, A Lucero, M Malacari, M Mallamaci, D Mandat, P Mantsch, A G Mariazzi, V Marin, I C Mariş, G Marsella, D Martello, H Martinez, O Martínez Bravo, J J Masías Meza, H J Mathes, S Mathys, J Matthews, J A J Matthews, G Matthiae, D Maurizio, E Mayotte, P O Mazur, C Medina, G Medina-Tanco, V B B Mello, D Melo, A Menshikov, S Messina, M I Micheletti, L Middendorf, I A Minaya, L Miramonti, B Mitrica, L Molina-Bueno, S Mollerach, F Montanet, C Morello, M Mostafá, C A Moura, G Müller, M A Muller, S Müller, I Naranjo, S Navas, P Necesal, L Nellen, A Nelles, J Neuser, P H Nguyen, M Niculescu-Oglinzanu, M Niechciol, L Niemietz, T Niggemann, D Nitz, D Nosek, V Novotny, H Nožka, L A Núñez, L Ochilo, F Oikonomou, A Olinto, D Pakk Selmi-Dei, M Palatka, J Pallotta, P Papenbreer, G Parente, A Parra, T Paul, M Pech, F Pedreira, J Pękala, R Pelayo, J Peña-Rodriguez, I M Pepe, L A S Pereira, L Perrone, E Petermann, C Peters, S Petrera, J Phuntsok, R Piegaia, T Pierog, P Pieroni, M Pimenta, V Pirronello, M Platino, M Plum, C Porowski, R R Prado, P Privitera, M Prouza, E J Quel, S Querchfeld, S Quinn, J Rautenberg, O Ravel, D Ravignani, B Revenu, J Ridky, M Risse, P Ristori, V Rizi, W Rodrigues de Carvalho, J Rodriguez Rojo, M D Rodríguez-Frías, D Rogozin, J Rosado, M Roth, E Roulet, A C Rovero, S J Saffi, A Saftoiu, H Salazar, A Saleh, F Salesa Greus, G Salina, J D Sanabria Gomez, F Sánchez, P Sanchez-Lucas, E M Santos, E Santos, F Sarazin, B Sarkar, R Sarmento, C Sarmiento-Cano, R Sato, C Scarso, M Schauer, V Scherini, H Schieler, D Schmidt, O Scholten, H Schoorlemmer, P Schovánek, F G Schröder, A Schulz, J Schulz, J Schumacher, S J Sciutto, A Segreto, M Settimo, A Shadkam, R C Shellard, G Sigl, O Sima, A Śmiałkowski, R Šmída, G R Snow, P Sommers, S Sonntag, J Sorokin, R Squartini, D Stanca, S Stanič, J Stapleton, J Stasielak, F Strafella, A Stutz, F Suarez, M Suarez Durán, T Sudholz, T Suomijärvi, A D Supanitsky, M S Sutherland, J Swain, Z Szadkowski, O A Taborda, A Tapia, A Tepe, V M Theodoro, C Timmermans, C J Todero Peixoto, L Tomankova, B Tomé, A Tonachini, G Torralba Elipe, D Torres Machado, P Travnicek, M Trini, R Ulrich, M Unger, M Urban, A Valbuena-Delgado, J F Valdés Galicia, I Valiño, L Valore, G van Aar, P van Bodegom, A M van den Berg, A van Vliet, E Varela, B Vargas Cárdenas, G Varner, J R Vázquez, R A Vázquez, D Veberič, V Verzi, J Vicha, M Videla, L Villaseñor, S Vorobiov, H Wahlberg, O Wainberg, D Walz, A A Watson, M Weber, A Weindl, L Wiencke, H Wilczyński, T Winchen, D Wittkowski, B Wundheiler, S Wykes, L Yang, T Yapici, D Yelos, E Zas, D Zavrtanik, M Zavrtanik, A Zepeda, B Zimmermann, M Ziolkowski, Z Zong, F Zuccarello
Ultrahigh energy cosmic ray air showers probe particle physics at energies beyond the reach of accelerators. Here we introduce a new method to test hadronic interaction models without relying on the absolute energy calibration, and apply it to events with primary energy 6-16 EeV (E_{CM}=110-170  TeV), whose longitudinal development and lateral distribution were simultaneously measured by the Pierre Auger Observatory. The average hadronic shower is 1.33±0.16 (1.61±0.21) times larger than predicted using the leading LHC-tuned models EPOS-LHC (QGSJetII-04), with a corresponding excess of muons...
November 4, 2016: Physical Review Letters
https://www.readbyqxmd.com/read/27850164/524-describing-organ-dysfunction-in-the-intensive-care-unit
#9
Andrea Soo, Dan Zuege, Gordon Fick, Daniel Niven, Luc Berthiaume, Henry Stelfox, Christopher Doig
No abstract text is available yet for this article.
December 2016: Critical Care Medicine
https://www.readbyqxmd.com/read/27845408/modeling-of-hydrogen-atom-diffusion-and-response-behavior-of-hydrogen-sensors-in-pd-y-alloy-nanofilm
#10
Yi Liu, Yanli Li, Pengcheng Huang, Han Song, Gang Zhang
To detect hydrogen gas leakage rapidly, many types of hydrogen sensors containing palladium alloy film have been proposed and fabricated to date. However, the mechanisms and factors that determine the response rate of such hydrogen sensor have not been established theoretically. The manners in which response time is forecasted and sensitive film is designed are key issues in developing hydrogen sensors with nanometer film. In this paper, a unilateral diffusion model of hydrogen atoms in Pd alloy based on Fick's second law is proposed to describe the Pd-H reaction process...
November 15, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27825604/early-in-situ-changes-in-chondrocyte-biomechanical-responses-due-to-a-partial-meniscectomy-in-the-lateral-compartment-of-the-mature-rabbit-knee-joint
#11
J M Fick, A P Ronkainen, R Madden, A Sawatsky, V Tiitu, W Herzog, R K Korhonen
We determined the biomechanical responses of chondrocytes to indentation at specific locations within the superficial zone of cartilage (i.e. patellar, femoral groove, femoral condylar and tibial plateau sites) taken from female New Zealand white rabbits three days after a partial meniscectomy in the lateral compartment of a knee joint. Confocal laser scanning microscopy combined with a custom indentation system was utilized to image chondrocyte responses at sites taken from ten contralateral and experimental knee joints...
October 28, 2016: Journal of Biomechanics
https://www.readbyqxmd.com/read/27813342/effect-of-solute-temperature-in-the-measurement-of-cardiac-output-in-children-using-the-thermodilution-technique
#12
Shyam Sathanandam, Pooja Kashyap, David Zurakowski, Lindsey Bird, Vera McGhee, Jeffrey Towbin, Benjamin Rush Waller
OBJECTIVES: The primary aim of this study was to compare thermodilution (TD) cardiac index (TDCi) measured by injecting cold saline (C-TDCi) to saline at room temperature (R-TDCi). The secondary aim was to assess the change in body temperature with cold saline injections in children. DESIGN: This is a prospective, case control study. SETTING: Cardiac catheterization lab at Le Bonheur Children's Hospital, Memphis, Tennessee. PATIENTS: Eighty-six children ≤18 years of age that underwent cardiac catheterization between April 2013 and April 2015, excluding patients with admixing lesions, on inotropic support and with ejection fraction < 30%...
November 4, 2016: Congenital Heart Disease
https://www.readbyqxmd.com/read/27806964/phosphodiesterase-inhibitor-based-vasodilation-improves-oxygen-delivery-and-clinical-outcomes-following-stage-1-palliation
#13
Kimberly I Mills, Aditya K Kaza, Brian K Walsh, Hilary C Bond, Mackenzie Ford, David Wypij, Ravi R Thiagarajan, Melvin C Almodovar, Luis G Quinonez, Christopher W Baird, Sitaram E Emani, Frank A Pigula, James A DiNardo, John N Kheir
BACKGROUND: Systemic vasodilation using α-receptor blockade has been shown to decrease the incidence of postoperative cardiac arrest following stage 1 palliation (S1P), primarily when utilizing the modified Blalock-Taussig shunt. We studied the effects of a protocol in which milrinone was primarily used to lower systemic vascular resistance (SVR) following S1P using the right ventricular to pulmonary artery shunt, measuring its effects on oxygen delivery (DO2) profiles and clinical outcomes...
November 2, 2016: Journal of the American Heart Association
https://www.readbyqxmd.com/read/27770700/modeling-and-experimental-examination-of-water-level-effects-on-radon-exhalation-from-fragmented-uranium-ore
#14
Yong-Jun Ye, Xin-Tao Dai, De-Xin Ding, Ya-Li Zhao
In this study, a one-dimensional steady-state mathematical model of radon transport in fragmented uranium ore was established according to Fick's law and radon transfer theory in an air-water interface. The model was utilized to obtain an analytical solution for radon concentration in the air-water, two-phase system under steady state conditions, as well as a corresponding radon exhalation rate calculation formula. We also designed a one-dimensional experimental apparatus for simulating radon diffusion migration in the uranium ore with various water levels to verify the mathematical model...
December 2016: Journal of Environmental Radioactivity
https://www.readbyqxmd.com/read/27767394/resolution-of-intractable-retching-following-mobilization-of-a-dolichoectatic-vertebral-artery-case-report-of-a-unique-brainstem-cranial-nerve-compression-syndrome
#15
Scott Seaman, Paul Nelson, Jacob Alexander, Andrew Swift, James Fick
The authors present the case of a 53-year-old man who was referred with disabling retching provoked by left arm abduction. At the time of his initial evaluation, a cervical MRI study was available for review and revealed an anatomical variation of the ipsilateral juxtamedullary vertebrobasilar junction. After brain imaging revealed contact of the medulla by a dolichoectatic vertebral artery at the dorsal root entry zone of the glossopharyngeal and vagus nerves, the patient was successfully treated by microvascular decompression of the brainstem and cranial nerves...
October 21, 2016: Journal of Neurosurgery
https://www.readbyqxmd.com/read/27749316/comparing-the-effectiveness-of-an-axial-and-a-centrifugal-left-ventricular-assist-device-in-ventricular-unloading
#16
David M Turer, Kelly L Koch, Todd M Koelling, Audrey H Wu, Francis D Pagani, Jonathan W Haft
Centrifugal (CFG) and axial flow (AX) left ventricular assist devices have different hydrodynamic properties that may impact the effectiveness of left ventricular unloading. We sought to determine whether patients implanted with the HeartWare HVAD (CFG) and HeartMate II (AX) had a similar degree of hemodynamic support by comparing parameters measured using echocardiography and right heart catheterization. Using our prospectively collected database, we identified 268 patients implanted with the AX and 93 with the CFG...
November 2016: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/27733625/analysis-of-diffusion-in-curved-surfaces-and-its-application-to-tubular-membranes
#17
Colin James Stockdale Klaus, Krishnan Raghunathan, Emmanuele DiBenedetto, Anne K Kenworthy
Diffusion of particles in curved surfaces is inherently complex compared with diffusion in a flat membrane, owing to the nonplanarity of the surface. The consequence of such nonplanar geometry on diffusion is poorly understood but is highly relevant in the case of cell membranes, which often adopt complex geometries. To address this question, we developed a new finite element approach to model diffusion on curved membrane surfaces based on solutions to Fick's law of diffusion and used this to study the effects of geometry on the entry of surface-bound particles into tubules by diffusion...
December 1, 2016: Molecular Biology of the Cell
https://www.readbyqxmd.com/read/27717479/mesophyll-conductance-and-reaction-diffusion-models-for-co2-transport-in-c3-leaves-needs-opportunities-and-challenges
#18
Herman N C Berghuijs, Xinyou Yin, Q Tri Ho, Steven M Driever, Moges A Retta, Bart M Nicolaï, Paul C Struik
One way to increase potential crop yield could be increasing mesophyll conductance gm. This variable determines the difference between the CO2 partial pressure in the intercellular air spaces (Ci) and that near Rubisco (Cc). Various methods can determine gm from gas exchange measurements, often combined with measurements of chlorophyll fluorescence or carbon isotope discrimination. gm lumps all biochemical and physical factors that cause the difference between Cc and Ci. gm appears to vary with Ci. This variability indicates that gm does not satisfy the physical definition of a conductance according to Fick's first law and is thus an apparent parameter...
November 2016: Plant Science: An International Journal of Experimental Plant Biology
https://www.readbyqxmd.com/read/27692784/tibial-tubercle-osteotomy-in-revision-knee-arthroplasty
#19
Shahid A Punwar, Daniel P Fick, Riaz J K Khan
BACKGROUND: Obtaining adequate exposure while maintaining the integrity of the extensor mechanism is crucial to the success of revision knee arthroplasty. This is particularly important in infected cases where staged procedures are necessary. While the use of a long, tibial tubercle osteotomy (TTO) is an established method to improve exposure, controversy still exists concerning complication rates and sequential use. METHODS: Forty-two TTOs were performed in revision knee arthroplasties between 2009 and 2015...
September 3, 2016: Journal of Arthroplasty
https://www.readbyqxmd.com/read/27689848/tandem-mass-spectrometry-of-novel-ether-linked-phospholipid-analogs-of-anionic-pulmonary-surfactant-phospholipids
#20
Rachel Fickes, Dennis R Voelker, Karin Zemski Berry, Robert C Murphy
RATIONALE: Structural analogs of the bioactive lipid 1-palmitoyl-2-oleoyl-sn-glycero-3-phosphoglycerol were synthesized with a xylitol polar head group and both diacyl and diether radyl groups. Mass spectral characterization of xylitol phospholipids (PX) was carried out using collisional activation and high-resolution mass measurements of positive molecular ion species and compared with the phosphatidylglycerol (PG) analogs. METHODS: PX were synthesized using a transphosphatidylation reaction catalyzed by phospholipase D and purified by high-performance liquid chromatography (HPLC)...
December 30, 2016: Rapid Communications in Mass Spectrometry: RCM
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