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https://www.readbyqxmd.com/read/29677664/age-induced-changes-in-the-lower-limb-muscle-activities-during-uphill-walking-at-steep-grades
#1
Sonja Th Kwee-Meier, Alexander Mertens, Sabina Jeschke
BACKGROUND: Uphill walking is particularly challenging for elderly persons. However, there is a lack of age-differentiated studies investigating the underlying differences in muscle activation when walking on sloped surfaces. These studies are needed, e.g., for planning of evacuations of large modern cruise ships with long walking distances on often inclined surfaces. METHODS: An age-differentiated, gender-balanced study with 26 young (20-30 years) and 26 elderly people (60-77 years) was therefore conducted, investigating uphill walking at 7° and at 14° contrasted to level walking on a treadmill...
April 12, 2018: Gait & Posture
https://www.readbyqxmd.com/read/29657742/quantifying-the-relative-effects-of-environmental-and-direct-transmission-of-norovirus
#2
S Towers, J Chen, C Cruz, J Melendez, J Rodriguez, A Salinas, F Yu, Y Kang
Norovirus is a common cause of outbreaks of acute gastroenteritis in health- and child-care settings, with serial outbreaks also frequently observed aboard cruise ships. The relative contributions of environmental and direct person-to-person transmission of norovirus have hitherto not been quantified. We employ a novel mathematical model of norovirus transmission, and fit the model to daily incidence data from a major norovirus outbreak on a cruise ship, and examine the relative efficacy of potential control strategies aimed at reducing environmental and/or direct transmission...
March 2018: Royal Society Open Science
https://www.readbyqxmd.com/read/29621623/maritime-varicella-illness-and-death-reporting-u-s-2010-2015
#3
Marion E Rice, Millicent Bannerman, Mona Marin, Adriana Lopez, Melissa M Lewis, Caroline Stamatakis, Joanna Regan
BACKGROUND: Ships destined for, or departing from, U.S. ports of entry must report certain signs and symptoms of potentially communicable diseases of public health interest among travelers to the Division of Global Migration and Quarantine (DGMQ) at the Centers for Disease Control and Prevention. METHODS: We reviewed ships' varicella case and outbreak reports from January 2010 through December 2015. RESULTS: DGMQ received 967 reports of varicella and 13 reports of herpes zoster...
April 2, 2018: Travel Medicine and Infectious Disease
https://www.readbyqxmd.com/read/29606316/mobile-dynamic-passive-sampling-of-trace-organic-compounds-evaluation-of-sampler-performance-in-the-danube-river
#4
Branislav Vrana, Foppe Smedes, Ian Allan, Tatsiana Rusina, Krzysztof Okonski, Klára Hilscherová, Jiří Novák, Peter Tarábek, Jaroslav Slobodník
A "dynamic" passive sampling (DPS) device, consisting of an electrically driven large volume water pumping device coupled to a passive sampler exposure cell, was designed to enhance the sampling rate of trace organic compounds. The purpose of enhancing the sampling rate was to achieve sufficient method sensitivity, when the period available for sampling is limited to a few days. Because the uptake principle in the DPS remains the same as for conventionally-deployed passive samplers, free dissolved concentrations can be derived from the compound uptake using available passive sampler calibration parameters...
March 29, 2018: Science of the Total Environment
https://www.readbyqxmd.com/read/29548415/emission-characteristics-of-offshore-fishing-ships-in-the-yellow-bo-sea-china
#5
Yingshuai Liu, Yunshan Ge, Jianwei Tan, Mingliang Fu, Asad Naeem Shah, Luqiang Li, Zhe Ji, Yan Ding
Maritime transport has been playing a decisive role in global trade. Its contribution to the air pollution of the sea and coastal areas has been widely recognized. The air pollutant emission inventories of several harbors in China have already been established. However, the emission factors of local ships have not been addressed comprehensively, and thus are lacking from the emission inventories. In this study, on-board emission tests of eight diesel-powered offshore fishing ships were conducted near the coastal region of the northern Yellow Bo Sea fishing ground of Dalian, China...
March 2018: Journal of Environmental Sciences (China)
https://www.readbyqxmd.com/read/29536196/assessing-land-use-sedimentation-and-water-quality-stressors-as-predictors-of-coral-reef-condition-in-st-thomas-u-s-virgin-islands
#6
L M Oliver, W S Fisher, L Fore, A Smith, P Bradley
Coral reef condition on the south shore of St. Thomas, U.S. Virgin Islands, was assessed at various distances from Charlotte Amalie, the most densely populated city on the island. Human influence in the area includes industrial activity, wastewater discharge, cruise ship docks, and impervious surfaces throughout the watershed. Anthropogenic activity was characterized using a landscape development intensity (LDI) index, sedimentation threat (ST) estimates, and water quality (WQ) impairments in the near-coastal zone...
March 13, 2018: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/29530537/effect-based-monitoring-of-the-danube-river-using-mobile-passive-sampling
#7
Jiří Novák, Branislav Vrana, Tatsiana Rusina, Krzysztof Okonski, Roman Grabic, Peta A Neale, Beate I Escher, Miroslava Macová, Selim Ait-Aissa, Nicolas Creusot, Ian Allan, Klára Hilscherová
Many aquatic pollutants can be present at low concentrations, but their mixtures can still affect health or behavior of exposed organisms. In this study, toxicological and chemical analyses were combined for spatial contamination profiling using an innovative passive sampling approach. A novel Dynamic Passive Sampler (DPS) was employed as a mobile sampler from a ship cruising along 2130km of the Danube river during the Joint Danube Survey 3 (JDS3). The sampling was performed in eight subsequent river stretches with two types of complementary passive samplers: silicone rubber sheets (SR) used for non-polar chemicals and SDB-RPS Empore™ disks (ED) for more hydrophilic compounds...
March 9, 2018: Science of the Total Environment
https://www.readbyqxmd.com/read/29460744/increase-in-hospital-admissions-for-severe-influenza-a-b-among-travelers-on-cruise-ships-to-alaska-2015
#8
Michael Payne, Danuta Skowronski, Suzana Sabaiduc, Linda Merrick, Christopher Lowe
An increase in hospital admissions for influenza occurred during the summer of 2015 at an acute care facility in Vancouver, British Columbia, Canada. Investigation identified 25 patients with recent history of cruise ship travel to Alaska. All characterized influenza A viruses were A(H3N2). We describe patient treatment regimens and outcomes.
March 2018: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/29366715/diarrhea-and-related-factors-among-passengers-on-world-cruises-departing-from-japan
#9
Michiyo Yamakawa, Megumi Sasai, Yosuke Kasai, Toshihide Tsuda, Etsuji Suzuki
BACKGROUND: Despite growth in the number of cruises worldwide, evidence about diarrhea experienced by cruise ship passengers remains sparse. We investigated rates of diarrhea and related factors among passengers on world cruises departing from Japan. METHODS: Targeting passengers on five world cruises (n = 4180) from 2012 to 2013 (85-103 travel days), we calculated rates of health seeking behavior for diarrhea by sex, age group, and number of roommates for each cruise...
January 25, 2018: Travel Medicine and Infectious Disease
https://www.readbyqxmd.com/read/29326203/high-quality-whole-genome-sequences-for-21-enterotoxigenic-escherichia-coli-strains-generated-with-pacbio-sequencing
#10
Peyton Smith, Rebecca L Lindsey, Lori A Rowe, Dhwani Batra, Devon Stripling, Lisley Garcia-Toledo, Daniel Drapeau, Kristen Knipe, Nancy Strockbine
Enterotoxigenic Escherichia coli (ETEC) is an important diarrheagenic pathogen. We report here the high-quality whole-genome sequences of 21 ETEC strains isolated from patients in the United States, international diarrheal surveillance studies, and cruise ship outbreaks.
January 11, 2018: Genome Announcements
https://www.readbyqxmd.com/read/29310072/in-situ-embryo-toxicity-test-with-sea-urchin-development-of-exposure-chamber-for-test-execution
#11
Lorenzo Morroni, Silvia Giuliani, David Pellegrini, Davide Sartori
In situ toxicity tests represent a technique rarely performed owing to the lack of standard methodologies or to technical or economic problems. Nevertheless, its application would allow for a more realistic interpretation of pollution effects than those obtained by standard laboratory tests. The goal of this study is to develop and validate a specific exposure chamber for in situ exposition of Paracentrotus lividus embryos to obtain a defined methodology to perform the sea urchin embryo toxicity test in field conditions...
April 2018: Chemosphere
https://www.readbyqxmd.com/read/29178000/a-procedure-to-evaluate-the-factors-determining-the-elemental-composition-of-pm-2-5-case-study-the-veneto-region-northeastern-italy
#12
Francesca Benetello, Stefania Squizzato, Mauro Masiol, Md Badiuzzaman Khan, Flavia Visin, Gianni Formenton, Bruno Pavoni
The Po Valley is one of the most important hot spots in Europe for air pollution. Morphological features and anthropogenic pressures lead to frequent breaching of air quality standards and to high-pollution episodes in an ~46 × 103 -km2 -wide alluvial lowland. Therefore, it is increasingly important to study the air quality in a wide geographical scale to better implement possible and successful mitigation measures. The Veneto region lies in the eastern part of the Po Valley and the elemental composition of PM has been mainly studied in the Venice area, whereas scarce data are available for the remaining territory of the region...
February 2018: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29162205/gastroenteritis-outbreaks-on-cruise-ships-contributing-factors-and-thresholds-for-early-outbreak-detection
#13
Varvara A Mouchtouri, Eleni Verykouki, Dumitru Zamfir, Christos Hadjipetris, Hannah C Lewis, Christos Hadjichristodoulou
When an increased number of acute gastroenteritis (AG) cases is detected among tourists staying at the same accommodation, outbreak management plans must be activated in a timely manner to prevent large outbreaks. Syndromic surveillance data collected between 1 January 2010 and 31 December 2013 by five seagoing cruise ships were analysed to identify attack rate thresholds for early outbreak detection. The overall incidence rate of AG was 2.81 cases per 10,000 traveller-days (95% confidence interval (CI): 0...
November 2017: Euro Surveillance: Bulletin Européen sur les Maladies Transmissibles, European Communicable Disease Bulletin
https://www.readbyqxmd.com/read/29146200/on-board-measurements-of-particle-and-gaseous-emissions-from-a-large-cargo-vessel-at-different-operating-conditions
#14
Thuy Chu-Van, Zoran Ristovski, Ali Mohammad Pourkhesalian, Thomas Rainey, Vikram Garaniya, Rouzbeh Abbassi, Sanaz Jahangiri, Hossein Enshaei, U-Shen Kam, Richard Kimball, Liping Yang, Ali Zare, Harry Bartlett, Richard J Brown
This study investigated particle and gaseous emission factors from a large cargo vessel for her whole voyage including at berth, manoeuvring and cruising. Quantification of these factors assists in minimising the uncertainty in the current methods of exhaust gas emission factor estimation. Engine performance and emissions from the main marine engine were measured on-board while the ship was manoeuvring and cruising at sea. Emissions of an auxiliary engine working at 55% of maximum continuous rating (MCR) were measured when the ship was at actual harbour stopovers...
November 13, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28959695/fatal-pulmonary-embolism-in-the-setting-of-immune-reconstitution-inflammatory-syndrome-attributed-to-ovarian-tuberculosis
#15
Israel Ugalde, Daniela Pirela, Saberio Lo Presti, Molly Bilderback, Andrés Pirela, Joseph Chan
In developed countries, tuberculosis remains a health care challenge due to human immunodeficiency virus (HIV) and immigration from endemic regions. The Centers for Disease Control and Prevention reported 9557 new cases in 2015, with extrapulmonary involvement in 20.2% of the cases. We present a 33-year-old woman from Cape Town, South Africa, who developed abdominal pain and fever while working on a cruise ship. She sought medical where she underwent computed tomography of her chest, abdomen, and pelvis with findings suggestive of pulmonary tuberculosis and an 8...
July 2017: Journal of Investigative Medicine High Impact Case Reports
https://www.readbyqxmd.com/read/28952660/medical-emergencies-on-large-passenger-ships-without-doctors-the-oslo-kiel-oslo-ferry-experience
#16
Thor-Erik Holt, Agnar Tveten, Eilif Dahl
BACKGROUND: The Oslo-Kiel-Oslo route is currently the only direct ferry crossing between Norway and Germany, covered by 2 cruise-and-cars ferries carrying about 2,600 passengers each and sailing every day (20 h at sea, 4 h in port). Unlike most ocean going cruise vessels, they are not required to carry a physician but an on-board paramedic handles medical emergencies. The aim of the study was to provide data on medical emergencies leading to helicopter evacuations (helivacs) or other urgent transfers to facilities ashore from the two ferries during a 3-year period...
2017: International Maritime Health
https://www.readbyqxmd.com/read/28942894/wavelet-based-information-filtering-for-fault-diagnosis-of-electric-drive-systems-in-electric-ships
#17
Andre A Silva, Shalabh Gupta, Ali M Bazzi, Arthur Ulatowski
Electric machines and drives have enjoyed extensive applications in the field of electric vehicles (e.g., electric ships, boats, cars, and underwater vessels) due to their ease of scalability and wide range of operating conditions. This stems from their ability to generate the desired torque and power levels for propulsion under various external load conditions. However, as with the most electrical systems, the electric drives are prone to component failures that can degrade their performance, reduce the efficiency, and require expensive maintenance...
September 21, 2017: ISA Transactions
https://www.readbyqxmd.com/read/28917818/assessment-of-shipping-emissions-on-four-ports-of-portugal
#18
R A O Nunes, M C M Alvim-Ferraz, F G Martins, S I V Sousa
In the last few years, ship emissions have attracted growing attention in the scientific community. The main reason is the constant increase of marine emissions over the last twenty years due to the intensification of port traffic. Thus, this study aimed to evaluate ship emissions (PM10, PM2.5, NOx, SO2, CO, CO2, N2O CH4, NMVOC, and HC) through the activity-based methodology in four of the main ports of Portugal (Leixões, Setúbal, Sines and Viana do Castelo) during 2013 and 2014. The analysis was performed according to ship types (bulk carrier, container, general cargo, passenger, Ro-Ro cargo, tanker and others) and operational modes (manoeuvring, hotelling and during cruising)...
December 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28914224/rapid-risk-assessment-report-for-schistosomiasis-epidemic-in-jianli-county-caused-by-the-sunk-oriental-star-cruise-ship
#19
Ziling Ni, Xiaodong Tan, Bei Liu, Zhaoyu Ying, Xudong Gao, Fen Yang
BACKGROUND: At 9:28 pm on June 1, 2015, the cruise ship "Oriental Star" sank into Yangtze River in Jianli County, with 422 people killed. When the accident occurred, the Chinese government took immediate action and dispatched more than 9000 rescuers. The risk for outbreak of schistosomiasis was increased because of the shipwreck. Obviously it is critical to carry out risk assessment as soon as possible. METHODS: By means of the Delphi method, the situation was analyzed so that the government could fathom the severity of the accident...
September 15, 2017: Disaster Medicine and Public Health Preparedness
https://www.readbyqxmd.com/read/28800634/utilizing-the-r-v-marcus-g-langseth-s-streamer-to-measure-the-acoustic-radiation-of-its-seismic-source-in-the-shallow-waters-of-new-jersey-s-continental-shelf
#20
Timothy J Crone, Maya Tolstoy, James C Gibson, Gregory Mountain
Shallow water marine seismic surveys are necessary to understand a range of Earth processes in coastal environments, including those that represent major hazards to society such as earthquakes, tsunamis, and sea-level rise. Predicting the acoustic radiation of seismic sources in shallow water, which is required for compliance with regulations designed to limit impacts on protected marine species, is a significant challenge in this environment because of variable reflectivity due to local geology, and the susceptibility of relatively small bathymetric features to focus or shadow acoustic energy...
2017: PloS One
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