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Eilif Dahl
A 66-year-old overweight insulin-dependent male passenger with diabetes and severe arthritis was on a 4-week circle-Pacific cruise. He fell ashore and hit his head. The ship was about to leave on a non-stop voyage - without any evacuation possibilities for the next 8 days. He was examined and had X-rays taken at the local hospital, but as his head injury was considered mild, he returned to the ship "for 48 hours of observation for signs of intracranial bleeding" - against the ship's doctor's advice. Delayed suspicion of a non-displaced cervical fracture caused extra work and worries and could have, but did not complicate matters...
2016: International Maritime Health
Eilif Dahl
A previously healthy 65-year-old female passenger presented on the 3rd day of her voyage with a small facial laceration after she fell and hit her forehead, following sudden blurred vision and dizziness. When the ship's doctor noticed that one pupil was much bigger than the other, he feared intracranial bleeding and considered helicopter evacuation. Her symptoms had started shortly after she had removed a transdermal scopolamine patch from behind her ear. Getting scopolamine from her hands in direct contact with the eye surface caused mydriasis...
2016: International Maritime Health
Damian Scarf, Jillian G Hayhurst, Benjamin C Riordan, Mike Boyes, Ted Ruffman, John A Hunter
OBJECTIVE: Mental health problems are a leading cause of health-related disability during adolescence. The objectives of the current study were to investigate whether participating in an adventure education programme (AEP) increased adolescents' resilience and elucidate how social connectedness contributes to any increase. METHOD: Adolescents who participated in the AEP had their resilience measured on the first (Time 1) and last day (Time 2) of a 10-day voyage...
September 27, 2016: Australasian Psychiatry: Bulletin of Royal Australian and New Zealand College of Psychiatrists
Chad G Ball, Sean C Grondin, Elijah Dixon, Keith D Lillemoe, Mohit Bhandari, Neil Parry
You graduate from medical school with dreams of beginning your residency, during which you will study and train within the specialty you love more than any other. While you may be book-smart at this point in your career, medical school does not teach you everything you need to know. During residency you will learn the didactic and technical requirements for your future staff job, but medical school won't explicitly address many of the crucial "dos and don'ts" of a successful 2- to 5-year postgraduate training voyage...
September 2016: Canadian Journal of Surgery. Journal Canadien de Chirurgie
Joel I Cohen
INTRODUCTION: In 1836, Charles Darwin returned to England with finches classified and seemingly showing little resemblance. However, subsequent examination by John Gould revealed 13 closely related species endemic to the Galápagos Islands. Despite initial confusion, and Darwin's overlooking to label these birds by island, some 100 years later they had become evolution's icon. The same could be said of Darwin's education and scientific pursuits, beginning in a rough, trial and error manner, lacking direction, but eventually benefitting from an unexpected opportunity that would lead to his theory of natural selection...
2016: SpringerPlus
Sara Ghabooli, Aibin Zhan, Esteban Paolucci, Marco R Hernandez, Elizabeta Briski, Melania E Cristescu, Hugh J MacIsaac
Successful biological invasion requires introduction of a viable population of a nonindigenous species (NIS). Rarely have ecologists assessed changes in populations while entrained in invasion pathways. Here, we investigate how zooplankton communities resident in ballast water change during transoceanic voyages. We used next-generation sequencing technology to sequence a nuclear small subunit ribosomal DNA fragment of zooplankton from ballast water during initial, middle, and final segments as a vessel transited between Canada and Brazil...
September 2016: Ecology and Evolution
T C Hain, M Cherchi
Mal de débarquement syndrome (MdDS) is typified by a prolonged rocking sensation - for a month or longer - that begins immediately following a lengthy exposure to motion. The provoking motion is usually a sea voyage. About 80% of MdDS sufferers are women, and most of them are middle-aged. MdDS patients are troubled by more migraine headaches than controls. Unlike dizziness caused by vestibular disorders or motion sickness, the symptoms of MdDS usually improve with re-exposure to motion. The long duration of symptoms - a month or more - distinguishes MdDS from land-sickness...
2016: Handbook of Clinical Neurology
Emanuele Berti, Alberto Sesana, Enrico Barausse, Vitor Cardoso, Krzysztof Belczynski
We estimate the potential of present and future interferometric gravitational-wave detectors to test the Kerr nature of black holes through "gravitational spectroscopy," i.e., the measurement of multiple quasinormal mode frequencies from the remnant of a black hole merger. Using population synthesis models of the formation and evolution of stellar-mass black hole binaries, we find that Voyager-class interferometers will be necessary to perform these tests. Gravitational spectroscopy in the local Universe may become routine with the Einstein Telescope, but a 40-km facility like Cosmic Explorer is necessary to go beyond z∼3...
September 2, 2016: Physical Review Letters
Anna Gimmler, Ralf Korn, Colomban de Vargas, Stéphane Audic, Thorsten Stoeck
Illumina reads of the SSU-rDNA-V9 region obtained from the circumglobal Tara Oceans expedition allow the investigation of protistan plankton diversity patterns on a global scale. We analyzed 6,137,350 V9-amplicons from ocean surface waters and the deep chlorophyll maximum, which were taxonomically assigned to the phylum Ciliophora. For open ocean samples global planktonic ciliate diversity is relatively low (ca. 1,300 observed and predicted ciliate OTUs). We found that 17% of all detected ciliate OTUs occurred in all oceanic regions under study...
2016: Scientific Reports
Gary H Heinz
No abstract text is available yet for this article.
August 25, 2016: Bulletin of Environmental Contamination and Toxicology
Xiuhui Tian, Yingjiang Xu, Xiukai Song, Xianghong Gong, Yihao Liu, Quanli Zhou, Zhongquan Wang, Chuanhai Xia
Semicarbazide (SEM), an industrial raw material and the marker residue of nitrofurazone as a veterinary drug, has become a new type of marine pollutant. A standard method (ultra-performance liquid chromatography-tandem mass spectrometry, UPLC-MS/MS) was used to analyze SEM in seawater, sediment, and shellfish. A series of sections and stations were set up in radical distribution in western Laizhou Bay, with six voyages and 150 monitoring samples. The concentrations of SEM in seawater and shellfish were 10(-11) and 10(-10)kg/L, respectively, and no SEM was detected in the sediment...
November 15, 2016: Marine Pollution Bulletin
Luis F Ruiz-Orejón, Rafael Sardá, Juan Ramis-Pujol
In two sea voyages throughout the Mediterranean (2011 and 2013) that repeated the historical travels of Archduke Ludwig Salvator of Austria (1847-1915), 71 samples of floating plastic debris were obtained with a Manta trawl. Floating plastic was observed in all the sampled sites, with an average weight concentration of 579.3 g dw km(-2) (maximum value of 9298.2 g dw km(-2)) and an average particle concentration of 147,500 items km(-2) (the maximum concentration was 1,164,403 items km(-2)). The plastic size distribution showed microplastics (<5 mm) in all the samples...
September 2016: Marine Environmental Research
Kate B Schimanski, Richard F Piola, Sharyn J Goldstien, Oliver Floerl, Clare Grandison, Javier Atalah, Grant A Hopkins
The likelihood that viable non-indigenous biofouling species will survive a voyage on a vessel is influenced by a range of factors, including the speed, duration, and route of the voyage and the amount of time the vessel spends in port. In this study, a land-based dynamic flow device was used to test the effect of recruit age, vessel speed and voyage duration on the survivorship and growth of the bryozoan Bugula neritina. In the experiment, one-week-old recruits had a higher likelihood (100%) of surviving voyages than older (one-month-old, 90%) or younger (one-day-old, 79%) recruits, but survival was not influenced by vessel speed (6 and 18 knots) or voyage duration (two and eight days)...
September 2016: Biofouling
C Simerly, C Castro, C Hartnett, C C Lin, M Sukhwani, K Orwig, G Schatten
The fertilizing sperm's lengthiest unchartered voyage is through the longest, least-investigated organ in a man's body - the Epididymis. Over six meters long in men, ~80 meters in stallions and over one-hundred times a mouse's body length, there are few functions known aside from sperm storage and nutrition. While spermatogenesis is completed in the testes, here we demonstrate sperm centriole reduction occurs within the epididymis. Investigations of GFP-CENTR mice and controls demonstrate both the presence of centriole pairs in the upper caput region of the epididymis and, the destruction, first, of the distal and, then, of the proximal centriole as the sperm transits to the cauda and vas deferens in preparation for its climactic release...
2016: Scientific Reports
Björn W Karlson, Olov Wiklund, Michael K Palmer, Stephen J Nicholls, Pia Lundman, Philip J Barter
AIMS: Patient response to statin treatment is individual and varied. As a consequence, when using a specific-dose approach, as recommended in the 2013 American College of Cardiology/American Heart Association guideline, there will be a range of reductions in the concentration of low-density lipoprotein cholesterol (LDL-C). The aim of this study was to use individual patient data from the VOYAGER meta-analysis to determine the extent of the variability in LDL-C reduction in response to treatment across the recommended doses of different statins...
October 2016: European Heart Journal. Cardiovascular Pharmacotherapy
Johany Peñailillo, Gabriela Olivares, Ximena Moncada, Claudia Payacán, Chi-Shan Chang, Kuo-Fang Chung, Peter J Matthews, Andrea Seelenfreund, Daniela Seelenfreund
BACKGROUND: Paper mulberry (Broussonetia papyrifera (L.) L'Hér. ex Vent) is a dioecious tree native to East Asia and mainland Southeast-Asia, introduced prehistorically to Polynesia as a source of bark fiber by Austronesian-speaking voyagers. In Oceania, trees are coppiced and harvested for production of bark-cloth, so flowering is generally unknown. A survey of botanical records of paper mulberry revealed a distributional disjunction: the tree is apparently absent in Borneo and the Philippines...
2016: PloS One
Ahmet Özbilgin, İbrahim Çavuş, Ahmet Yıldırım, Cumhur Gündüz
Plasmodium knowlesi is now added to the known four Plasmodium species (P.vivax, P.falciparum, P.malariae, P.ovale) as a cause of malaria in humans because of the recent increasing rate of cases reported from countries of southeastern Asia. P.knowlesi which infects macaque monkeys (Macaca fascicularis and M.nemestrina) is transmitted to humans especially by Anopheles leucosphyrus and An.hackeri mosquitos. First human cases of P.knowlesi malaria have been detected in Malaysia which have reached high numbers in recent years and also have been reported from countries of Southeast Asia such as Thailand, Philippines, Myanmar, Singapore and Vietnam...
July 2016: Mikrobiyoloji Bülteni
L K English, S N Fearnbach, M Lasschuijt, A Schlegel, K Anderson, S Harris, S J Wilson, J O Fisher, J S Savage, B J Rolls, K L Keller
OBJECTIVE: Large portions of energy-dense foods drive energy intake but the brain mechanisms underlying this effect are not clear. Our main objective was to investigate brain function in response to food images varied by portion size (PS) and energy density (ED) in children using functional magnetic resonance imaging (fMRI). METHODS AND DESIGN: Blood-oxygen-level-dependent (BOLD) fMRI was completed in 36 children (ages 7-10 years) after a 2-h fast while viewing food images at two levels of PS (Large PS, Small PS) and two levels of ED (High ED, Low ED)...
October 2016: International Journal of Obesity: Journal of the International Association for the Study of Obesity
J D Paull
No abstract text is available yet for this article.
July 2016: Anaesthesia and Intensive Care
Alistair Sponsel
This essay argues that Charles Darwin's distinctive approach to studying distribution and diversity was shaped by his face-to-face interactions with maritime surveyors during the voyage of H.M.S. Beagle (1831-1836). Introducing their hydrographic surveying methods into natural history enabled him to compare fossil and living marine organisms, to compare sedimentary rocks to present-day marine sediments, and to compare landscapes to submarine topology, thereby realizing Charles Lyell's fanciful ambition for a superior form of geology that might be practiced by an "amphibious being...
June 2016: Isis; An International Review Devoted to the History of Science and its Cultural Influences
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