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https://www.readbyqxmd.com/read/28103538/taking-flight
#1
Gary Singh
Dolores Kaufman often begins her pieces by transmuting scanned photos and objects into new digital images. She seeks to explore the mystery and symbolism embedded in the seemingly mundane ephemera with which we share our lives. Kaufman's Eye Sea will be included in the MoonArk, a six-inch-tall capsule designed by a team at Carnegie Mellon University that will be travelling to the moon in competition for the Google Lunar X Prize.
January 2017: IEEE Computer Graphics and Applications
https://www.readbyqxmd.com/read/28103523/anthropogenic-chemical-cues-can-alter-the-swimming-behaviour-of-juvenile-stages-of-a-temperate-fish
#2
Carlos Díaz-Gil, Lucy Cotgrove, Sarah Louise Smee, David Simón-Otegui, Hilmar Hinz, Amalia Grau, Miquel Palmer, Ignacio A Catalán
Human pressure on coastal areas is affecting essential ecosystems including fish nursery habitats. Among these anthropogenic uses, the seasonal increment in the pressure due to leisure activities such as coastal tourism and yachting is an important environmental stressor in many coastal zones. These pressures may elicit understudied impacts due to, for example, sunscreens or other seasonal pollutants. The island of Majorca, northwest Mediterranean Sea, experiences one of the highest number of tourist visits per capita in the world, thus the surrounding coastal habitat is subject to high anthropogenic seasonal stress...
January 6, 2017: Marine Environmental Research
https://www.readbyqxmd.com/read/28103271/early-stages-of-sea-level-rise-lead-to-decreased-salt-marsh-plant-diversity-through-stronger-competition-in-mediterranean-climate-marshes
#3
Akana E Noto, Jonathan B Shurin
Climate change shuffles species ranges and creates novel interactions that may either buffer communities against climate change or exacerbate its effect. For instance, facilitation can become more prevalent in salt marshes under stressful conditions while competition is stronger in benign environments. Sea-level rise (SLR) is a consequence of climate change that affects the distribution of stress from inundation and salinity. To determine how interactions early in SLR are affected by changes in these two stressors in Mediterranean-climate marshes, we transplanted marsh turfs to lower elevations to simulate SLR and manipulated cover of the dominant plant species, Salicornia pacifica (formerly Salicornia virginica)...
2017: PloS One
https://www.readbyqxmd.com/read/28102426/improved-anticoagulant-effect-of-fucosylated-chondroitin-sulfate-orally-administered-as-gastro-resistant-tablets
#4
Roberto J C Fonseca, Isabela D Sucupira, Stephan Nicollas M C G Oliveira, Gustavo R Santos, Paulo A S Mourão
Fucosylated chondroitin sulfate (FucCS) is a potent anticoagulant polysaccharide extracted from sea cucumber. Its anticoagulant activity is attributed to the presence of unique branches of sulfated fucose. Although this glycosaminoglycan exerts an antithrombotic effect following oral administration, high doses are necessary to achieve the maximum effect. The diminished activity of FucCS following oral administration is likely due to its degradation in the gastrointestinal tract and its limited ability to cross the intestinal cell membranes...
January 19, 2017: Thrombosis and Haemostasis
https://www.readbyqxmd.com/read/28102329/leads-in-arctic-pack-ice-enable-early-phytoplankton-blooms-below-snow-covered-sea-ice
#5
Philipp Assmy, Mar Fernández-Méndez, Pedro Duarte, Amelie Meyer, Achim Randelhoff, Christopher J Mundy, Lasse M Olsen, Hanna M Kauko, Allison Bailey, Melissa Chierici, Lana Cohen, Anthony P Doulgeris, Jens K Ehn, Agneta Fransson, Sebastian Gerland, Haakon Hop, Stephen R Hudson, Nick Hughes, Polona Itkin, Geir Johnsen, Jennifer A King, Boris P Koch, Zoe Koenig, Slawomir Kwasniewski, Samuel R Laney, Marcel Nicolaus, Alexey K Pavlov, Christopher M Polashenski, Christine Provost, Anja Rösel, Marthe Sandbu, Gunnar Spreen, Lars H Smedsrud, Arild Sundfjord, Torbjørn Taskjelle, Agnieszka Tatarek, Jozef Wiktor, Penelope M Wagner, Anette Wold, Harald Steen, Mats A Granskog
The Arctic icescape is rapidly transforming from a thicker multiyear ice cover to a thinner and largely seasonal first-year ice cover with significant consequences for Arctic primary production. One critical challenge is to understand how productivity will change within the next decades. Recent studies have reported extensive phytoplankton blooms beneath ponded sea ice during summer, indicating that satellite-based Arctic annual primary production estimates may be significantly underestimated. Here we present a unique time-series of a phytoplankton spring bloom observed beneath snow-covered Arctic pack ice...
January 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28102247/climate-change-sea-level-rise-for-centuries-to-come
#6
(no author information available yet)
No abstract text is available yet for this article.
January 18, 2017: Nature
https://www.readbyqxmd.com/read/28101963/extreme-biophysics-enzymes-under-pressure
#7
Qi Huang, Jocelyn M Rodgers, Russell J Hemley, Toshiko Ichiye
A critical question about piezophilic (pressure-loving) microbes is how their constituent molecules maintain function under high pressure. Here, factors are examined that may lead to the increased activity under pressure in dihydrofolate reductase from the piezophilic Moritella profunda compared to the homologous enzyme from the mesophilic Escherichia coli. Molecular dynamics simulations are performed at various temperatures and pressures to examine how pressure affects the flexibility of the enzymes from these two microbes, since both stability and flexibility are necessary for enzyme activity...
January 19, 2017: Journal of Computational Chemistry
https://www.readbyqxmd.com/read/28101948/influence-of-the-marine-feeding-area-on-the-muscle-and-egg-fatty-acid-composition-of-atlantic-salmon-salmo-salar-spawners-estimated-from-the-scale-stable-isotopes
#8
J Torniainen, M J Kainz, R I Jones, M Keinänen, P J Vuorinen, M Kiljunen
Fatty acids in muscle tissue and eggs of female Atlantic salmon Salmo salar spawners were analysed to evaluate the dietary quality of their final feeding areas in the Baltic Sea. The final likely feeding area was identified by comparing stable carbon and nitrogen isotope composition of the outermost growth region (final annulus) of scales of returned S. salar with that of reference S. salar caught from different feeding areas. Some overlap of stable-isotope reference values among the three areas, in addition to prespawning fasting, decreased the ability of muscle tri-acylglycerols to discriminate the final likely feeding area and the area's dietary quality...
January 18, 2017: Journal of Fish Biology
https://www.readbyqxmd.com/read/28101780/update-of-the-spectrum-of-mucopolysaccharidoses-type-iii-in-tunisia-identification-of-three-novel-mutations-and-in-silico-structural-analysis-of-the-missense-mutations
#9
Souad Ouesleti, Maria Francisca Coutinho, Isaura Ribeiro, Abdehedi Miled, Dalila Saidane Mosbahi, Sandra Alves
BACKGROUND: Mucopolysaccharidoses type III (MPS III) are a group of autosomal recessive lysosomal storage diseases, caused by mutations in genes that code for enzymes involved in the lysosomal degradation of heparan sulphate: heparan sulfate sulfamidase (SGSH), α-N-acetylglucosaminidase (NAGLU), heparan sulfate acetyl-CoA: α-glucosaminide N-acetyltransferase (HGSNAT), and N-acetylglucosamine-6-sulfatase (GNS). METHODS: In this study, we have performed the molecular analysis of the SGSH, NAGLU and HGSNAT genes in 10 patients from 6 different MPS III Tunisian families...
January 19, 2017: World Journal of Pediatrics: WJP
https://www.readbyqxmd.com/read/28101741/anti-hyperuricemic-effect-of-taxifolin-in-cultured-hepatocytes-and-model-mice
#10
Shin-Ichi Adachi, Ken-Ichi Nihei, Yoshiyuki Ishihara, Fumiaki Yoshizawa, Kazumi Yagasaki
Hyperuricemia is recognized as an important risk factor for gout. High dietary intake of purine-rich foods such as meats and sea foods increases uric acid (UA) levels in the blood. Taxifolin present in Siberian larch and strawberries has been reported to possess health promoting activities including anti-oxidant effect. In this study, we examined anti-hyperuricemic effect of taxifolin in both cultured hepatocytes and hyperuricemic model mice. In cultured AML12 hepatocytes, taxifolin significantly suppressed UA production dose- and time-dependently...
January 18, 2017: Cytotechnology
https://www.readbyqxmd.com/read/28100417/long-range-and-regional-transported-size-resolved-atmospheric-aerosols-during-summertime-in-urban-shanghai
#11
Xiaoxiao Ding, Lingdong Kong, Chengtian Du, Assiya Zhanzakova, Lin Wang, Hongbo Fu, Jianmin Chen, Xin Yang, Tiantao Cheng
In this study, the concentrations of water soluble ions (WSI), organic carbon (OC), and elemental carbon (EC) of size-resolved (0.056-18μm) atmospheric aerosols were measured in July and August 2015 in Shanghai, China. Backward trajectory model and potential source contribution function (PSCF) model were used to identify the potential source distributions of size-resolved particles and PM1.8-associated atmospheric inorganic and carbonaceous aerosols. The results showed that the average mass concentrations of PM0...
January 15, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28100401/modelling-the-long-term-evolution-of-worst-case-arctic-oil-spills
#12
Hauke Blanken, Louis Bruno Tremblay, Susan Gaskin, Alexander Slavin
We present worst-case assessments of contamination in sea ice and surface waters resulting from hypothetical well blowout oil spills at ten sites in the Arctic Ocean basin. Spill extents are estimated by considering Eulerian passive tracers in the surface ocean of the MITgcm (a hydrostatic, coupled ice-ocean model). Oil in sea ice, and contamination resulting from melting of oiled ice, is tracked using an offline Lagrangian scheme. Spills are initialized on November 1st 1980-2010 and tracked for one year. An average spill was transported 1100km and potentially affected 1...
January 15, 2017: Marine Pollution Bulletin
https://www.readbyqxmd.com/read/28100168/effects-of-pleistocene-sea-level-fluctuations-on-mangrove-population-dynamics-a-lesson-from-sonneratia-alba
#13
Yuchen Yang, Jianfang Li, Shuhuan Yang, Xinnian Li, Lu Fang, Cairong Zhong, Norman C Duke, Renchao Zhou, Suhua Shi
BACKGROUND: A large-scale systematical investigation of the influence of Pleistocene climate oscillation on mangrove population dynamics could enrich our knowledge about the evolutionary history during times of historical climate change, which in turn may provide important information for their conservation. RESULTS: In this study, phylogeography of a mangrove tree Sonneratia alba was studied by sequencing three chloroplast fragments and seven nuclear genes. A low level of genetic diversity at the population level was detected across its range, especially at the range margins, which was mainly attributed to the steep sea-level drop and associated climate fluctuations during the Pleistocene glacial periods...
January 18, 2017: BMC Evolutionary Biology
https://www.readbyqxmd.com/read/28099870/single-embryo-resolution-quantitative-analysis-of-reporters-permits-multiplex-spatial-cis-regulatory-analysis
#14
Catherine L Guay, Sean T McQuade, Jongmin Nam
Cis-regulatory modules (CRMs) control spatiotemporal gene expression patterns in embryos. While measurement of quantitative CRM activities has become efficient, measurement of spatial CRM activities still relies on slow, one-by-one methods. To overcome this bottleneck, we have developed a high-throughput method that can simultaneously measure quantitative and spatial CRM activities. The new method builds profiles of quantitative CRM activities measured at single-embryo resolution in many mosaic embryos and uses these profiles as a 'fingerprint' of spatial patterns...
January 15, 2017: Developmental Biology
https://www.readbyqxmd.com/read/28098800/characterization-of-the-transcriptome-and-gene-expression-of-brain-tissue-in-sevenband-grouper-hyporthodus-septemfasciatus-in-response-to-nnv-infection
#15
Jong-Oh Kim, Jae-Ok Kim, Wi-Sik Kim, Myung-Joo Oh
Grouper is one of the favorite sea food resources in Southeast Asia. However, the outbreaks of the viral nervous necrosis (VNN) disease due to nervous necrosis virus (NNV) infection have caused mass mortality of grouper larvae. Many aqua-farms have suffered substantial financial loss due to the occurrence of VNN. To better understand the infection mechanism of NNV, we performed the transcriptome analysis of sevenband grouper brain tissue, the main target of NNV infection. After artificial NNV challenge, transcriptome of brain tissues of sevenband grouper was subjected to next generation sequencing (NGS) using an Illumina Hi-seq 2500 system...
January 13, 2017: Genes
https://www.readbyqxmd.com/read/28098211/deep-sea-crustacean-trawling-fisheries-in-portugal-quantification-of-effort-and-assessment-of-landings-per-unit-effort-using-a-vessel-monitoring-system-vms
#16
Juan Bueno-Pardo, Sofia P Ramalho, Ana García-Alegre, Mariana Morgado, Rui P Vieira, Marina R Cunha, Henrique Queiroga
Mapping and quantifying bottom trawling fishing pressure on the seafloor is pivotal to understand its effects on deep-sea benthic habitats. Using data from the Vessel Monitoring System of crustacean trawlers along the Portuguese margin, we have identified the most exploited areas and characterized the most targeted habitats and water depths. We estimated a total trawling effort of 69596, 66766, and 63427 h y(-1) for the years 2012, 2013, and 2014 respectively which, considering the total landings estimated for this gear, yield values of 20...
January 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28098195/global-mapping-of-nonseismic-sea-level-oscillations-at-tsunami-timescales
#17
Ivica Vilibić, Jadranka Šepić
Present investigations of sea level extremes are based on hourly data measured at coastal tide gauges. The use of hourly data restricts existing global and regional analyses to periods larger than 2 h. However, a number of processes occur at minute timescales, of which the most ruinous are tsunamis. Meteotsunamis, hazardous nonseismic waves that occur at tsunami timescales over limited regions, may also locally dominate sea level extremes. Here, we show that nonseismic sea level oscillations at tsunami timescales (<2 h) may substantially contribute to global sea level extremes, up to 50% in low-tidal basins...
January 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28097841/oxygen-saturation-periodic-breathing-and-sleep-apnea-in-infants-aged-1-4-months-old-living-at-3200-meters-above-sea-level
#18
Santiago Ucrós, Claudia Granados, Karem Parejo, Fausto Ortega, Fernando Guillén, Sonia Restrepo, Fabián Gil, Miriam Guillén
OBJECTIVES: To describe, in infants aged 1-4 months old living at 3200 meters above sea level (MASL), oxygen saturation (SpO2), sleep apnea indices, and periodic breathing (PB) during sleep. Polysomnographies were done in 18 healthy infants. RESULTS: The median SpO2 was 87%, and the median PB was 7.2% for the total sleep time. The median central sleep apnea index was 30.5/hour, which decreased to 5.4/hour once sleep apneas associated with PB were excluded. The 5th percentile for SpO2 was 76% among awake infants, and 66% among asleep infants...
1, 2017: Archivos Argentinos de Pediatría
https://www.readbyqxmd.com/read/28097160/contribution-to-the-molecular-systematics-of-the-genus-capoeta-from-the-south-caspian-sea-basin-using-mitochondrial-cytochrome-b-sequences-teleostei-cyprinidae
#19
Halimeh Zareian, Hamid Reza Esmaeili, Adeleh Heidari, Majid Reza Khoshkholgh, Hamed Mousavi-Sabet
Traditionally, Capoeta populations from the southern Caspian Sea basin have been considered as Capoeta capoeta gracilis. Study on the phylogenetic relationship of Capoeta species using mitochondrial cytochrome b gene sequences show that Capoeta population from the southern Caspian Sea basin is distinct species and receive well support (posterior probability of 100%). Based on the tree topologies obtained from Bayesian and Maximum Likelihood methods, three main groups for the studied Capoeta were detected: Clade I) Capoeta trutta group (the Mesopotamian Capoeta group) including closely related taxa (e...
June 2016: Molecular Biology Research Communications
https://www.readbyqxmd.com/read/28097066/henricia-djakonovi-sp-nov-echinodermata-echinasteridae-a-new-sea-star-species-from-the-sea-of-japan
#20
Anton Chichvarkhin
A new sea star species, H. djakonovi sp.n., was discovered in Rudnaya Bay in the Sea of Japan. This is a sympatric species of the well-known and common species Henricia pseudoleviuscula Djakonov, 1958. Both species are similar in body size and proportions, shape of skeletal plates, and life coloration, which distinguishes them from the other Henricia species inhabiting the Sea of Japan. Nevertheless, these species can be distinguished by their abactinal spines: in both species, they are short and barrel-like, but the new species is the only Henricia species in Russian waters of the Pacific that possesses such spines with a massive, smooth, bullet-like tip...
2017: PeerJ
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