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https://www.readbyqxmd.com/read/28511604/duplicated-or-hybridized-peptide-functional-domains-promote-oral-homeostasis
#1
T Basiri, N D Johnson, E B Moffa, Y Mulyar, P L Serra Nunes, M A A M Machado, W L Siqueira
Proteins that have existed for millions of years frequently contain repeats of functional domains within their primary structure, thereby improving their functional capacity. In the evolutionary young statherin protein contained within the in vivo-acquired enamel pellicle (AEP), we identified a single functional domain (DR9) located within the protein N-terminal portion that exhibits a higher affinity for hydroxyapatite and more efficient protection against enamel demineralization compared to other native statherin peptides...
May 1, 2017: Journal of Dental Research
https://www.readbyqxmd.com/read/28493137/effective-dose-rate-coefficients-for-exposure-to-contaminated-soil
#2
K G Veinot, K F Eckerman, M B Bellamy, M M Hiller, S A Dewji, C E Easterly, N E Hertel, R Manger
The Oak Ridge National Laboratory Center for Radiation Protection Knowledge has undertaken calculations related to various environmental exposure scenarios. A previous paper reported the results for submersion in radioactive air and immersion in water using age-specific mathematical phantoms. This paper presents age-specific effective dose rate coefficients derived using stylized mathematical phantoms for exposure to contaminated soils. Dose rate coefficients for photon, electron, and positrons of discrete energies were calculated and folded with emissions of 1252 radionuclides addressed in ICRP Publication 107 to determine equivalent and effective dose rate coefficients...
May 10, 2017: Radiation and Environmental Biophysics
https://www.readbyqxmd.com/read/28486266/pediatric-drowning-a-standard-operating-procedure-to-aid-the-prehospital-management-of-pediatric-cardiac-arrest-resulting-from-submersion
#3
Rebecca R Best, Benjamin H L Harris, Jason L Walsh, Timothy Manfield
OBJECTIVES: Drowning is one of the leading causes of death in children. Resuscitating a child following submersion is a high-pressure situation, and standard operating procedures can reduce error. Currently, the Resuscitation Council UK guidance does not include a standard operating procedure on pediatric drowning. The objective of this project was to design a standard operating procedure to improve outcomes of drowned children. METHODS: A literature review on the management of pediatric drowning was conducted...
May 8, 2017: Pediatric Emergency Care
https://www.readbyqxmd.com/read/28470471/expression-and-activity-of-breast-cancer-resistance-protein-bcrp-abcg2-in-human-distal-lung-epithelial-cells-in-vitro
#4
Sabrina Nickel, Mohammed Ali Selo, Juliane Fallack, Caoimhe G Clerkin, Hanno Huwer, Nicole Schneider-Daum, Claus-Michael Lehr, Carsten Ehrhardt
PURPOSE: Breast cancer resistance protein (BCRP/ABCG2) has previously been identified with high expression levels in human lung. The subcellular localisation and functional activity of the transporter in lung epithelia, however, remains poorly investigated. The aim of this project was to study BCRP expression and activity in freshly isolated human alveolar epithelial type 2 (AT2) and type 1-like (AT1-like) cells in primary culture, and to compare these findings with data obtained from the NCI-H441 cell line...
May 3, 2017: Pharmaceutical Research
https://www.readbyqxmd.com/read/28444366/intraoperative-air-leak-measured-after-lobectomy-is-associated-with-postoperative-duration-of-air-leak
#5
Alessandro Brunelli, Michele Salati, Cecilia Pompili, Paolo Gentili, Armando Sabbatini
OBJECTIVES: To verify the association between the air leak objectively measured intraoperatively (IAL) using the ventilator and the air leak duration after pulmonary lobectomy. METHODS: Prospective analysis on 111 patients submitted to pulmonary lobectomy (33 by video-assisted thoracic surgery). After resection, objective assessment of air leak (in milliliter per minute) was performed before closure of the chest by measuring the difference between a fixed inspired and expired volume, using a tidal volume of 8 ml/kg, a respiratory rate of 10 and a positive-end expiratory pressure of 5 cmH 2 O...
April 24, 2017: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/28431445/-near-drowning-with-good-outcome-after-ecmo-therapy-and-therapeutic-hypothermia-despite-20-minutes-of-anoxia-and-16-hours-of-hypoxia
#6
Peter Stachon, Johannes Kalbhenn, Stephan Walterspacher, Christoph Bode, Dawid Staudacher
Introduction Drowning with submersion over 10 minutes is associated with a high mortality. Here, we present a case, in which a good neurological outcome was achieved after interdisciplinary, intensive care therapy despite submersion of 20 minutes followed by 16 hours of hypoxia. History A 19 year old man drowned in fresh-water. After 20 minutes submersion he was localized and salvaged from 8 meters depth and primarily resuscitated successfully after 10 minutes. Within the next hour, there condition worsened by respiratory deterioration due to a massive capillary leak syndrome in addition to a disseminated intravascular coagulation...
April 2017: Deutsche Medizinische Wochenschrift
https://www.readbyqxmd.com/read/28429454/scuba-diving-patent-foramen-ovale-and-heart-rhythm-disturbances-the-role-of-underwater-holter-monitoring-case-report
#7
Szymon Olędzki, Andrzej Wojtarowicz, Edyta Płońska-Gościniak, Maciej Lewandowski, Jarosław Gorący
Patent foramen ovale (PFO) is thought to be a risk factor for decompression illness (DCI). Catheter-based closure procedure reduces the risk of DCI in selected scuba divers with PFO. Major complication of invasive approach are rare, minor, especially heart rhythm disturbances are reported relatively often. We describe a case of 41-year-old diver, who underwent PFO closure due to recurrent DCI events. Afterward, he experienced no DCI symptoms; however, he complained about feeling of the heart beating during a submersion...
April 21, 2017: Annals of Noninvasive Electrocardiology
https://www.readbyqxmd.com/read/28367581/drowning-in-swimming-pools-clinical-features-and-safety-recommendations-based-on-a-study-of-descriptive-records-by-emergency-medical-services-attending-to-995-calls
#8
Joanna Shi-En Chan, Marie Xin Ru Ng, Yih Yng Ng
INTRODUCTION: This study was a descriptive analysis of national ambulance case records, aimed at making practical safety recommendations in order to reduce the incidence of drowning in swimming pools. METHODS: A search was performed on a national database of descriptive summaries by first responder paramedics of all 995 calls made to the Singapore Civil Defence Force between 1 January 2012 and 31 December 2014. We included all cases of submersion in both public and private pools for which emergency medical services were activated...
April 3, 2017: Singapore Medical Journal
https://www.readbyqxmd.com/read/28362304/the-influence-of-the-microbial-quality-of-wastewater-lettuce-cultivars-and-enumeration-technique-when-estimating-the-microbial-contamination-of-wastewater-irrigated-lettuce
#9
P Makkaew, M Miller, N J Cromar, H J Fallowfield
This study investigated the volume of wastewater retained on the surface of three different varieties of lettuce, Iceberg, Cos, and Oak leaf, following submersion in wastewater of different microbial qualities (10, 10(2), 10(3), and 10(4) E. coli MPN/100 mL) as a surrogate method for estimation of contamination of spray-irrigated lettuce. Uniquely, Escherichia coli was enumerated, after submersion, on both the outer and inner leaves and in a composite sample of lettuce. E. coli were enumerated using two techniques...
April 2017: Journal of Water and Health
https://www.readbyqxmd.com/read/28329484/gabapentin-induced-aquagenic-wrinkling-of-the-palms
#10
Nazan Emiroglu, Fatma P Cengiz, Ozlem Su, Nahide Onsun
Aquagenic keratoderma (AK) or aquagenic wrinklingis a rare palmoplantar skin disease. It is sporadic orhereditary condition. It appears in childhood or youngadulthood and it is seen as multiple asymptomaticsmall shiny papules on the peripheral margin ofpalms and/or soles after submersion in water. Thepathogenesis and etiology of ASA remains unclear.Drugs sometimes trigger AK. Herein, we present thecase of a 29-year-old man who had begun treatmentwith gabapentin three weeks before the onset of hiscutaneous symptoms...
January 15, 2017: Dermatology Online Journal
https://www.readbyqxmd.com/read/28265833/direct-measurement-of-nutrient-concentrations-in-freshwaters-with-a-miniaturized-analytical-probe-evaluation-and-validation
#11
D Copetti, L Valsecchi, A G Capodaglio, G Tartari
This work deals with the evaluation of the aqueous concentrations of dissolved reactive phosphorus (DRP), total phosphorus (TP), and ammonium nitrogen (N-NH4) in surface water by means of direct online instrumentation. A portable, submersible, and automated analyzer designed to measure dissolved and total nutrient concentrations characterized by miniaturization of the entire analytical process was tested against laboratory methods. A total number of 36 water samples of different origin (i.e., rain, river, lake, and sewage waters) were analyzed and used in the comparison of DRP, TP, and N-NH4 data...
April 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/28264341/new-hexactinellid-sponges-from-deep-mediterranean-canyons
#12
Nicole Boury-Esnault, Jean Vacelet, Maude Dubois, Adrien Goujard, Maïa Fourt, Thierry Pérez, Pierre Chevaldonné
During the exploration of the NW Mediterranean deep-sea canyons (MedSeaCan and CorSeaCan cruises), several hexactinellid sponges were observed and collected by ROV and manned submersible. Two of them appeared to be new species of Farrea and Tretodictyum. The genus Farrea had so far been reported with doubt from the Mediterranean and was listed as "taxa inquirenda" for two undescribed species. We here provide a proper description for the specimens encountered and sampled. The genus Tretodictyum had been recorded several times in the Mediterranean and in the near Atlantic as T...
February 21, 2017: Zootaxa
https://www.readbyqxmd.com/read/28247448/an-aquatic-decomposition-scoring-method-to-potentially-predict-the-postmortem-submersion-interval-of-bodies-recovered-from-the-north-sea
#13
Marjolijn A van Daalen, Dorothée S de Kat, Bernice F L Oude Grotebevelsborg, Roosje de Leeuwe, Jeroen Warnaar, Roelof Jan Oostra, Wilma L J M Duijst-Heesters
This study aimed to develop an aquatic decomposition scoring (ADS) method and investigated the predictive value of this method in estimating the postmortem submersion interval (PMSI) of bodies recovered from the North Sea. This method, consisting of an ADS item list and a pictorial reference atlas, showed a high interobserver agreement (Krippendorff's alpha ≥ 0.93) and hence proved to be valid. This scoring method was applied to data, collected from closed cases-cases in which the postmortal submersion interval (PMSI) was known-concerning bodies recovered from the North Sea from 1990 to 2013...
March 2017: Journal of Forensic Sciences
https://www.readbyqxmd.com/read/28243777/blood-pooling-in-extrathoracic-veins-after-glossopharyngeal-insufflation
#14
Tanja Mijacika, Daria Frestad, Kasper Kyhl, Otto Barak, Ivan Drvis, Niels H Secher, Ante Buca, Ante Obad, Zeljko Dujic, Per Lav Madsen
PURPOSE: Trained breath-hold divers hyperinflate their lungs by glossopharyngeal insufflation (GPI) to prolong submersion time and withstand lung collapse at depths. Pulmonary hyperinflation leads to profound hemodynamic changes. METHODS: Thirteen divers performed preparatory breath-holds followed by apnea with GPI. Filling of extrathoracic veins was determined by ultrasound and magnetic resonance imaging and peripheral extravasation of fluid was assessed by electrical impedance...
February 27, 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/28198649/fatal-drownings-in-fiji
#15
Kathryn Murray, Peter Carter
Drowning is a newly comprehended public health concern in Fiji. Defined as "the process of experiencing respiratory impairment from submersions or immersion in liquid," drowning has been identified as one of Fiji's 5 leading causes of death for those aged 1 to 29 years. The aim of this article was to develop the most parsimonious model that can be used to explain the number of monthly fatal drowning cases in Fiji. Based on a cross-section of 187 drowning incidents from January 2012 to April 2015, this observational study found the number of monthly drownings in Fiji was significantly affected by monthly rainfall ( P = ...
January 2017: Asia-Pacific Journal of Public Health
https://www.readbyqxmd.com/read/28158067/transient-features-and-growth-behavior-of-artificial-cracks-during-the-initial-damage-period
#16
Bin Ma, Ke Wang, Menglei Lu, Li Zhang, Lei Zhang, Jinlong Zhang, Xinbin Cheng, Zhanshan Wang
The laser damage of transmission elements contains a series of complex processes and physical phenomena. The final morphology is a crater structure with different sizes and shapes. The formation and development of the crater are also accompanied by the generation, extension, and submersion of cracks. The growth characteristics of craters and cracks are important in the thermal-mechanism damage research. By using pump-probe detection and an imaging technique with a nanosecond pulsewidth probe laser, we obtained the formation time of the crack structure in the radial and circumferential directions...
February 1, 2017: Applied Optics
https://www.readbyqxmd.com/read/28149464/sealing-efficacy-of-system-b-versus-thermafil-and-guttacore-obturation-techniques-evidenced-by-scintigraphic-analysis
#17
Manuel Marques-Ferreira, Margarida Abrantes, Hugo-Diogo Ferreira, Francisco Caramelo, Maria-Filomena Botelho, Eunice-Virgínia Carrilho
BACKGROUND: This study compared root canal sealing ability, filled by Continuous Wave compaction and two carrier-based obturation systems, using the nuclear medicine approach. MATERIAL AND METHODS: Fifty-five single-rooted extracted teeth were selected. The crowns were sectioned and each tooth was instrumented using rotary Protaper® Universal system. The roots were divided into 3 experimental groups and two control groups. Forty-five root canals were filled, using Continuous Wave, GuttaCore or Thermafil system and TopSeal sealer...
January 2017: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/28129922/marine-litter-on-the-seafloor-of-the-faial-pico-passage-azores-archipelago
#18
Yasmina Rodríguez, Christopher K Pham
Plastic pollution in the marine environment attracts much attention from both researchers and the general public. Plastic items and other debris are commonly observed everywhere in the ocean, from the surface down to the deep ocean floor. In this study, we analysed 45.2km of video footage, collected during 56 transects surveying the seafloor of the Faial-Pico Passage in order to quantify the abundance of marine litter and its interactions with benthic fauna. The footage was collected by a Remotely Operated Vehicle (ROV) and a manned submersible at depths ranging between 40 and 525m...
March 15, 2017: Marine Pollution Bulletin
https://www.readbyqxmd.com/read/28110000/drones-may-be-used-to-save-lives-in-out-of-hospital-cardiac-arrest-due-to-drowning
#19
A Claesson, L Svensson, P Nordberg, M Ringh, M Rosenqvist, T Djarv, J Samuelsson, O Hernborg, P Dahlbom, A Jansson, J Hollenberg
BACKGROUND: Drowning leading to out-of-hospital cardiac arrest (OHCA) and death is a major public health concern. Submersion with duration of less than 10min is associated with favorable neurological outcome and nearby bystanders play a considerable role in rescue and resuscitation. Drones can provide a visual overview of an accident scene, their potential as lifesaving tools in drowning has not been evaluated. AIM: The aim of this simulation study was to evaluate the efficiency of a drone for providing earlier location of a submerged possible drowning victim in comparison with standard procedure...
January 18, 2017: Resuscitation
https://www.readbyqxmd.com/read/28105834/in-line-acidification-for-potentiometric-sensing-of-nitrite-in-natural-waters
#20
Nadezda Pankratova, Maria Cuartero, Thomas Cherubini, Gaston A Crespo, Eric Bakker
We report on a novel approach for in-line sample acidification that results in a significant improvement in the limit of detection of potentiometric anion-selective electrodes aiming at determining nutrients in natural waters. The working principle of the developed acidification module relies on the cation-exchange process between the sample and an ion-exchange Donnan exclusion membrane in its protonated form. The resulting in-line acidification of natural waters with millimolar sodium chloride level (freshwater, drinking water, and aquarium water, as well as dechloridized seawater) decreases the pH down to ∼5...
January 3, 2017: Analytical Chemistry
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