keyword
MENU ▼
Read by QxMD icon Read
search

Marine

keyword
https://www.readbyqxmd.com/read/28454029/aerosol-contributions-at-an-urban-background-site-in-eastern-mediterranean-potential-source-regions-of-pahs-in-pm10-mass
#1
Konstantinos Dimitriou, Pavlos Kassomenos
In this paper, two backward air mass trajectory-based models (Potential Source Contribution Function [PSCF] and Concentration Weighted Trajectory [CWT]) were combined, aiming to identify sources and factors defining the load of PM in the city of Limassol (Cyprus). The study also focused on the determination of atmospheric pathways enriching the aerosol phase of four carcinogenic Polycyclic Aromatic Hydrocarbons (PAHs): Benzo(a)pyrene (BaP), Benzo(a)anthracene (BaA), Benzo(b)fluoranthene (BbF) and Benzo(k)fluoranthene (BkF), in PM10 mass...
April 25, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28454026/textural-characteristics-and-sedimentary-environment-of-sediment-at-eroded-and-deposited-regions-in-the-severely-eroded-coastline-of-batu-pahat-malaysia
#2
Wan Hanna Melini Wan Mohtar, Siti Aminah Bassa Nawang, Khairul Nizam Abdul Maulud, Yannie Anak Benson, Wan Ahmad Hafiz Wan Mohamed Azhary
This study investigates the textural characteristics of sediments collected at eroded and deposited areas of highly severed eroded coastline of Batu Pahat, Malaysia. Samples were taken from systematically selected 23 locations along the 67km stretch of coastline and are extended to the fluvial sediments of the main river of Batu Pahat. Grain size distribution analysis was conducted to identify its textural characteristics and associated sedimentary transport behaviours. Sediments obtained along the coastline were fine-grained material with averaged mean size of 7...
April 24, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28454020/toxicity-of-tio2-in-nanoparticle-or-bulk-form-to-freshwater-and-marine-microalgae-under-visible-light-and-uv-a-radiation
#3
M Sendra, I Moreno-Garrido, M P Yeste, J M Gatica, J Blasco
Use of titanium dioxide nanoparticles (TiO2 NPs) has become a part of our daily life and the high environmental concentrations predicted to accumulate in aquatic ecosystems are cause for concern. Although TiO2 has only limited reactivity, at the nanoscale level its physico-chemical properties and toxicity are different compared with bulk material. Phytoplankton is a key trophic level in fresh and marine ecosystems, and the toxicity provoked by these nanoparticles can affect the structure and functioning of ecosystems...
April 25, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28453834/overproduction-of-outer-membrane-protein-a-by-acinetobacter-baumannii-as-a-risk-factor-for-nosocomial-pneumonia-bacteremia-and-mortality-rate-increase
#4
Viviana Sánchez-Encinales, Rocío Álvarez-Marín, María Eugenia Pachón-Ibáñez, Felipe Fernández-Cuenca, Alvaro Pascual, José Garnacho-Montero, Luis Martínez-Martínez, Jordi Vila, María Mar Tomás, José Miguel Cisneros, Germán Bou, Jesús Rodríguez-Baño, Jerónimo Pachón, Younes Smani
Background.: Outer membrane protein A (OmpA) is a porin involved in Acinetobacter baumannii pathogenesis. However, OmpA clinical implication in hospital-acquired infections remains unknown. We aimed to determine whether OmpA overproduction was a risk factor associated with pneumonia, bacteremia, and mortality. Methods.: We analyzed demographic, microbiological, and clinical data from 100 patients included in a unicenter cohort and 246 included in a unicenter cohort and a multicenter cohort...
March 15, 2017: Journal of Infectious Diseases
https://www.readbyqxmd.com/read/28453548/self-feedbacks-determine-the-sustainability-of-human-interventions-in-eco-social-complex-systems-impacts-on-biodiversity-and-ecosystem-health
#5
Marco Ortiz, Richard Levins
Several administrative polices have been implemented in order to reduce the negative impacts of fishing on natural ecosystems. Four eco-social models with different levels of complexity were constructed, which represent the seaweed harvest in central-northern Chile under two different regimes, Management and Exploitation Areas for Benthic Resources (MAEBRs) and Open Access Areas (OAAs). The dynamics of both regimes were analyzed using the following theoretical frameworks: (1) Loop Analysis, which allows the local stability or sustainability of the models and scenarios to be assessed; and (2) Hessian´s optimization procedure of a global fishery function (GFF) that represents each dynamics of each harvest...
2017: PloS One
https://www.readbyqxmd.com/read/28449363/health-literacy-interventions-for-immigrant-populations-a-systematic-review
#6
REVIEW
M Fernández-Gutiérrez, P Bas-Sarmiento, M J Albar-Marín, O Paloma-Castro, J M Romero-Sánchez
BACKGROUND: Health literacy is considered a social health determinant that influences improvement in health, patient empowerment and reduction in inequalities. There is a lack of health literacy interventions for vulnerable social groups (i.e. immigrants), and nurses have shown little familiarity with the concept. AIM: This study aimed to identify and analyse whether interventions directed at immigrant populations improve the functional (basic reading, writing and arithmetic skills), interactive (social and cognitive skills) and critical (advanced cognitive and social skills in critically analyzing information and making informed decisions) dimensions of health literacy, taking into account the role played by nursing in these interventions...
April 27, 2017: International Nursing Review
https://www.readbyqxmd.com/read/28449248/betanodavirus-dissection-of-the-viral-life-cycle
#7
REVIEW
C-F Low, B Syarul Nataqain, H-Y Chee, M Z H Rozaini, M Najiah
Progressive research has been recently made in dissecting the molecular biology of Betanodavirus life cycle, the causative pathogen of viral encephalopathy and retinopathy in economic important marine fish species. Establishment of betanodavirus infectious clone allows the manipulation of virus genome for functional genomic study, which elucidates the biological event of the viral life cycle at molecular level. The betanodavirus strategizes its replication by expressing anti-apoptosis/antinecrotic proteins to maintain the cell viability during early infection...
April 27, 2017: Journal of Fish Diseases
https://www.readbyqxmd.com/read/28449237/the-environmental-and-host-associated-bacterial-microbiota-of-arctic-seawater-farmed-atlantic-salmon-with-ulcerative-disorders
#8
C Karlsen, K F Ottem, Øyvind Jakobsen Brevik, M Davey, H Sørum, H C Winther-Larsen
The Norwegian aquaculture of Atlantic salmon (Salmo salar L.) is hampered by ulcerative disorders associated with bacterial infections. Chronic ulceration may provide microenvironments that disturb the normal microbial biodiversity of external surfaces. Studying the composition of microbial communities in skin ulcers will enhance our understanding of ulcer aetiology. To achieve this, we tested marine farmed Atlantic salmon and sampled the base and edge of ulcers at the end of winter (April) and end of summer (September), in addition to skin mucus of healthy individuals...
April 27, 2017: Journal of Fish Diseases
https://www.readbyqxmd.com/read/28448808/identifying-conflict-potential-in-a-coastal-and-marine-environment-using-participatory-mapping
#9
Susan A Moore, Greg Brown, Halina Kobryn, Jennifer Strickland-Munro
Planning for coastal and marine environments is often characterized by conflict over current and proposed uses. Marine spatial planning has been proposed as a way forward, however, social data are often missing impeding decision-making. Participatory mapping, a technique useful for providing social data and predict conflict potential, is being used in an increasing number of terrestrial applications to inform planning, but has been little used in the marine realm. This study collected social data for an extensive coastline in northwestern Australia via 167 in-depth face-to-face interviews including participant mapping of place values...
April 24, 2017: Journal of Environmental Management
https://www.readbyqxmd.com/read/28448714/octopus-inspired-assembly-of-nanosucker-arrays-for-dry-wet-adhesion
#10
Ying-Chu Chen, Hongta Yang
The octopus is able to adhere to slippery, fouled and irregular surfaces in the marine intertidal environment, because of its periodic infundibulum-shaped suckers on the arms. Here, we report a scalable self-assembly technique for fabricating adhesion materials that mimic octopus-sucker functionality. By utilizing spin-coated two-dimensional colloidal crystals as templates, non-close-packed nanosucker arrays are patterned on silicone substrates. The resulting nanosuckers can be deformed to exhibit great adhesive capacities on both micro-rough and flat surfaces in dry and wet environments...
April 27, 2017: ACS Nano
https://www.readbyqxmd.com/read/28448552/transcriptomic-analysis-of-the-hepatic-response-to-stress-in-the-red-cusk-eel-genypterus-chilensis-insights-into-lipid-metabolism-oxidative-stress-and-liver-steatosis
#11
Sebastian Naour, Brisa M Espinoza, Jorge E Aedo, Rodrigo Zuloaga, Jonathan Maldonado, Macarena Bastias-Molina, Herman Silva, Claudio Meneses, Cristian Gallardo-Escarate, Alfredo Molina, Juan Antonio Valdés
Teleosts exhibit a broad divergence in their adaptive response to stress, depending on the magnitude, duration, and frequency of stressors and the species receiving the stimulus. We have previously reported that the red cusk-eel (Genypterus chilensis), an important marine farmed fish, shows a physiological response to stress that results in increased skeletal muscle atrophy mediated by over-expression of components of the ubiquitin proteasome and autophagy-lysosomal systems. To better understand the systemic effects of stress on the red cusk-eel metabolism, the present study assessed the transcriptomic hepatic response to repetitive handling-stress...
2017: PloS One
https://www.readbyqxmd.com/read/28448211/prevalence-and-geographic-distribution-of-vector-borne-pathogens-in-apparently-healthy-dogs-in-croatia
#12
Vladimir Mrljak, Josipa Kuleš, Željko Mihaljević, Marin Torti, Jelena Gotić, Martina Crnogaj, Tatjana Živičnjak, Iva Mayer, Iva Šmit, Mangesh Bhide, Renata Barić Rafaj
Vector-borne pathogens (VBPs) are a group of globally extended and quickly spreading pathogens that are transmitted by various arthropod vectors. The aim of the present study was to investigate the seroprevalence against Babesia canis, Anaplasma phagocytophilum, Borrelia burgdorferi sensu lato, Leishmania infantum, Dirofilaria immitis, and Ehrlichia canis in dogs in Croatia. We investigated 435 randomly selected apparently healthy dogs in 13 different locations of Croatia for antibodies to B. canis by indirect immunofluorescence using a commercial IFA IgG Antibody Kit...
April 27, 2017: Vector Borne and Zoonotic Diseases
https://www.readbyqxmd.com/read/28448144/a-maldiisotopic-approach-to-discover-natural-products-cryptomaldamide-a-hybrid-tripeptide-from-the-marine-cyanobacterium-moorea-producens
#13
Robin B Kinnel, Eduardo Esquenazi, Tiago Leao, Nathan Moss, Emily Mevers, Alban R Pereira, Emily A Monroe, Anton Korobeynikov, Thomas F Murray, David Sherman, Lena Gerwick, Pieter C Dorrestein, William H Gerwick
Genome sequencing of microorganisms has revealed a greatly increased capacity for natural products biosynthesis than was previously recognized from compound isolation efforts alone. Hence, new methods are needed for the discovery and description of this hidden secondary metabolite potential. Here we show that provision of heavy nitrogen (15)N-nitrate to marine cyanobacterial cultures followed by single-filament MALDI analysis over a period of days was highly effective in identifying a new natural product with an exceptionally high nitrogen content...
April 27, 2017: Journal of Natural Products
https://www.readbyqxmd.com/read/28448099/no-viral-transcripts-associated-with-folliculotropic-mycosis-fungoides-using-a-high-throughput-sequencing-approach
#14
Aurélie Du-Thanh, Olivier Dereure, Justine Cheval, Marine Dumarest, Liza Al-Shikhley, Céline Girard, Bernard Guillot, Marc Eloit
No abstract text is available yet for this article.
April 27, 2017: Acta Dermato-venereologica
https://www.readbyqxmd.com/read/28447373/avoiding-a-crisis-of-motivation-for-ocean-management-under-global-environmental-change
#15
REVIEW
Peter J Mumby, James N Sanchirico, Kenneth Broad, Michael W Beck, Peter Tyedmers, Megan Morikawa, Thomas A Okey, Larry B Crowder, Elizabeth A Fulton, Denny Kelso, Joanie A Kleypas, Stephan B Munch, Polita Glynn, Kathryn Matthews, Jane Lubchenco
Climate change and ocean acidification are altering marine ecosystems and, from a human perspective, creating both winners and losers. Human responses to these changes are complex, but may result in reduced government investments in regulation, resource management, monitoring and enforcement. Moreover, a lack of peoples' experience of climate change may drive some towards attributing the symptoms of climate change to more familiar causes such as management failure. Taken together, we anticipate that management could become weaker and less effective as climate change continues...
April 27, 2017: Global Change Biology
https://www.readbyqxmd.com/read/28447121/persistent-organic-pollutant-and-hormone-levels-in-harbor-porpoise-with-b-cell-lymphoma
#16
Stephanie A Norman, Zach C Winfield, Barry H Rickman, Sascha Usenko, Matthew Klope, Susan Berta, Sandra Dubpernell, Howard Garrett, Mary Jo Adams, Dyanna Lambourn, Jessica L Huggins, Nadine Lysiak, Adelaide E Clark, Rebel Sanders, Stephen J Trumble
B-cell lymphoma, a common morphologic variant of non-Hodgkin lymphoma, has been associated with persistent pollutants in humans, but this association is not well-characterized in top-level predators sharing marine resources with humans. We characterized and compared blubber contaminants and hormones of a pregnant harbor porpoise (Phocoena phocoena) with B-cell lymphoma, with those in two presumed healthy fishery by-caught porpoises with no lymphoma: a pregnant adult and female juvenile. Common historic use compounds, including polychlorinated biphenyls, polybrominated diphenyl ethers, and pesticides, were evaluated in blubber samples from three porpoises...
April 26, 2017: Archives of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/28446901/anaerobic-methanotrophic-archaea-of-the-anme-2d-cluster-are-active-in-a-low-sulfate-iron-rich-freshwater-sediment
#17
Hannah S Weber, Kirsten S Habicht, Bo Thamdrup
ANaerobic MEthanotrophic (ANME) archaea remove the greenhouse gas methane from anoxic environments and diminish its flux to the atmosphere. High methane removal efficiencies are well documented in marine environments, whereas anaerobic oxidation of methane (AOM) was only recently indicated as an important methane sink in freshwater systems. Freshwater AOM-mediating microorganisms lack taxonomic identification and only little is known about metabolic adaptions to prevailing biogeochemical conditions. One of the first study sites providing information about AOM activity in freshwater sediment is Lake Ørn, a low-sulfate, iron-rich Danish lake...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28446693/lipid-consumption-in-coral-larvae-differs-among-sites-a-consideration-of-environmental-history-in-a-global-ocean-change-scenario
#18
Emily B Rivest, Chii-Shiarng Chen, Tung-Yung Fan, Hsing-Hui Li, Gretchen E Hofmann
The success of early life-history stages is an environmentally sensitive bottleneck for many marine invertebrates. Responses of larvae to environmental stress may vary due to differences in maternal investment of energy stores and acclimatization/adaptation of a population to local environmental conditions. In this study, we compared two populations from sites with different environmental regimes (Moorea and Taiwan). We assessed the responses of Pocillopora damicornis larvae to two future co-occurring environmental stressors: elevated temperature and ocean acidification...
April 26, 2017: Proceedings. Biological Sciences
https://www.readbyqxmd.com/read/28446608/model-enabled-gene-search-megs-allows-fast-and-direct-discovery-of-enzymatic-and-transport-gene-functions-in-the-marine-bacterium-vibrio-fischeri
#19
Shu Pan, Kiel Nikolakakis, Paul A Adamczyk, Min Pan, Edward G Ruby, Jennifer L Reed
While genomes can be rapidly sequenced, the functions of many genes are incompletely or erroneously annotated because of a lack of experimental evidence or prior functional knowledge in sequence databases. To address this weakness, we describe here a model-enabled gene search (MEGS) approach that (i) identifies metabolic functions either missing from an organism's genome annotation or incorrectly assigned to an ORF, by using discrepancies between metabolic model predictions and experimental culturing data; (ii) designs functional selection experiments for these specific metabolic functions; and (iii) selects a candidate gene(s) responsible for these functions from a genomic library and directly interrogates this gene's function experimentally...
April 26, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28446342/unveiling-the-nature-of-charge-carrier-interactions-by-electroabsorption-spectroscopy-an-illustration-with-lead-halide-perovskites
#20
Marine E F Bouduban, Andrés Burgos-Caminal, Joël Teuscher, Jacques-E Moser
Unravelling the nature of the interactions between photogenerated charge carriers in solar energy conversion devices is key to enhance performance. In this perspective, we discuss electroabsorption spectroscopy (EAS), as the spectral bandshape of the electroabsorption (EA) signal directly depends on the strength of the charge carrier interactions. For instance, the electroabsorption response in molecular or confined excitonic systems can be modelled perturbatively yielding the Stark effect. In contrast, most solids exhibit weaker interactions, and a perturbative approach cannot be taken in general...
April 26, 2017: Chimia
keyword
keyword
17083
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"