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Hae-Cheol Kim, Seunghyun Son, Yong Hoon Kim, Jong Seong Khim, Jungho Nam, Won Keun Chang, Jung-Ho Lee, Chang-Hee Lee, Jongseong Ryu
The Yellow Sea is a shallow marginal sea with a large tidal range. In this study, ten areas located along the western coast of the Korean Peninsula are investigated with respect to remotely sensed water quality indicators derived from NASA MODIS aboard of the satellite Aqua. We found that there was a strong seasonal trend with spatial heterogeneity. In specific, a strong six-month phase-lag was found between chlorophyll-a and total suspended solid owing to their inversed seasonality, which could be explained by different dynamics and environmental settings...
June 19, 2017: Marine Pollution Bulletin
Feng Zhang, Bing-Guang Zhang
In the title complex, [Ca2Cu(C9H3O6)2(H2O)2] n , the Ca(II) and Cu(II) cations are bridged by the benzene-1,3,5-tri-carboxyl-ate anions (BTC(3-)) to form the coordination polymer, in which each BTC(3-) anion bridges two Cu(II) and five Ca(II) cations with a μ7 coordination mode. The Cu(II) cation, located at an inversion centre, is in a nearly square-planar geometry defined by four O atoms from four bridging BTC(3-) anions, while the Ca(II) cation is in a distorted octa-hedral geometry defined by five O atoms from bridging BTC(3-) anions and one water mol-ecule...
June 1, 2017: Acta Crystallographica. Section E, Crystallographic Communications
Marc I Stutter, Jonathan Cains
The degradation of aquatic ecosystems by multiply-acting stressors is a key threat requiring new approaches to identify impairment processes and restoration targets. Heterotrophic respiration of C-substrates can be an integrative indicator of how aquatic ecosystems respond to pollution. We utilised sixteen C-substrates (simple metabolites to dissolved organic matter (DOM)) to characterise substrate induced respiration (SIR) for sediments from sixteen NE Scotland streams covering a range of land use-related pollution pressures...
June 8, 2017: Chemosphere
Li Luo, Nan Duan, Xiaochang C Wang, Wenshan Guo, Huu Hao Ngo
Although the eutrophication phenomenon has been studied for a long time, there are still no quantifiable parameters available for a comprehensive assessment of its impacts on the water environment. As contamination alters the thermodynamic equilibrium of a water system to a state of imbalance, a novel method was proposed, in this study, for its quantitative evaluation. Based on thermodynamic analyses of the algal growth process, the proposed method targeted, both theoretically and experimentally, the typical algae species encountered in the water environment...
June 14, 2017: Science of the Total Environment
Ravi C Bakaraju, Daniel Tilia, Jennifer Sha, Jennie Diec, Jiyoon Chung, Danny Kho, Shona Delaney, Anna Munro, Varghese Thomas
PURPOSE: To compare the visual performance of prototype contact lenses designed via deliberate manipulation of higher-order spherical aberrations to extend-depth-of-focus with two commercial multifocals, after 1 week of lens wear. METHODS: In a prospective, participant-masked, cross-over, randomized, 1-week dispensing clinical-trial, 43 presbyopes [age: 42-63 years] each wore AIROPTIX Aqua multifocal (AOMF), ACUVUE OASYS for presbyopia (AOP) and extended-depth-of-focus prototypes (EDOF) appropriate to their add requirements...
June 12, 2017: Journal of Optometry
Dong Yang, Mohammad R Momeni, Hakan Demir, Dale R Pahls, Martino Rimoldi, Timothy C Wang, Omar K Farha, Joseph T Hupp, Christopher J Cramer, Bruce C Gates, Laura Gagliardi
The metal-organic framework NU-1000, with Zr6-oxo, hydroxo, and aqua nodes, was modified by incorporation of hydroxylated Al(iii) ions by ALD-like chemistry with [Al(CH3)2(iso-propoxide)]2 followed by steam (ALD = atomic layer deposition). Al ions were installed to the extent of approximately 7 per node. Single-site iridium diethylene complexes were anchored to the nodes of the modified and unmodified MOFs by reaction with Ir(C2H4)2(acac) (acac = acetylacetonate) and converted to Ir(CO)2 complexes by treatment with CO...
June 14, 2017: Faraday Discussions
Ravi C Bakaraju, Klaus Ehrmann, Arthur Ho
PURPOSE: To compare the computed optical performance of prototype lenses designed using deliberate manipulation of higher-order spherical aberrations to extend depth-of-focus (EDOF) with two commercial multifocals. METHODS: Emmetropic, presbyopic, schematic eyes were coupled with prototype EDOF and commercial multifocal lenses (Acuvue Oasys for presbyopia, AOP, Johnson & Johnson & Air Optix Aqua multifocal, AOMF, Alcon). For each test configuration, the through-focus retinal image quality (TFRIQ) values were computed over 21 vergences, ranging from -0...
June 9, 2017: Journal of Optometry
Yong Teng, Yafei Cai, Wenhu Pi, Lixia Gao, Chloe Shay
BACKGROUND: Abnormalities of tubulin polymerization and microtubule assembly are often seen in cancer, which make them very suitable targets for the development of therapeutic approach against rapidly dividing and aggressive cancer cells. CYT997 is a novel microtubule-disrupting agent with anticancer activity in multiple cancer types including prostate cancer. However, the molecular mechanisms of action of CYT997 in prostate cancer have not been well characterized. METHODS: Src knockdown cells were achieved by lentiviral-mediated interference...
June 12, 2017: Journal of Hematology & Oncology
Siddiq Akbar, Jingjing Du, Hong Lin, Xiangshi Kong, Shucun Sun, Xingjun Tian
Cyanobacterial and zooplankton inducible defenses are important but understudied process that regulate the trophic interactions of freshwater ecosystem. Daphnia due to its large size is considered an important zooplankton with the high potential to control cyanobacterial blooms. It has been shown that Daphnia through maternal induction transfer tolerance to their next generation against Microcystis toxicity. Maternal induction has been investigated in different Daphnia species without considering phenotypic plasticity of prey...
June 2017: Harmful Algae
S K Baliarsingh, R M Dwivedi, Aneesh A Lotliker, K C Sahu, T Srinivasa Kumar, S S C Shenoi
An ecosystem disruptive bloom of red Noctiluca scintillans (hereafter Noctiluca) was observed in coastal waters of the north-western Bay of Bengal during April 2014. Based on the principle of phytoplankton group/species specific remote sensing reflectance (Rrs), a technique of detecting green Noctiluca and diatom was developed earlier using Rrs at 443, 488, and 531 nm of Moderate Imaging Spectroradiometer-Aqua (MODIS). This was appropriately modified to detect bloom of red Noctiluca in coastal waters of the Bay of Bengal...
July 2017: Environmental Monitoring and Assessment
Francesco Nutini, Daniela Stroppiana, Lorenzo Busetto, Dario Bellingeri, Chiara Corbari, Marco Mancini, Enrico Zini, Pietro Alessandro Brivio, Mirco Boschetti
The triangle method has been applied to derive a weekly indicator of evaporative fraction on vegetated areas in a temperate region in Northern Italy. Daily MODIS Aqua Land Surface Temperature (MYD11A1) data has been combined with air temperature maps and 8-day composite MODIS NDVI (MOD13Q1/MYD13Q1) data to estimate the Evaporative Fraction (EF) at 1 km resolution, on a daily basis. Measurements at two eddy covariance towers located within the study area have been exploited to assess the reliability of satellite based EF estimations as well as the robustness of input data...
June 9, 2017: Sensors
Jordi-Amat Cuello-Garibo, Michael S Meijer, Sylvestre Bonnet
In metal-based photoactivated chemotherapy (PACT), two photoproducts are generated by light-triggered photosubstitution of a metal-bound ligand: the free ligand itself and an aquated metal complex. By analogy with cisplatin, the aquated metal complex is usually presented as the biologically active species, as it can typically bind to DNA. In this work, we show that this qualitative assumption is not necessarily valid by comparing the biological activity, log P, and cellular uptake of three ruthenium-based PACT complexes: [Ru(bpy)2(dmbpy)](2+), [Ru(bpy)2(mtmp)](2+), and [Ru(Ph2phen)2(mtmp)](2+)...
June 9, 2017: Chemical Communications: Chem Comm
Kurt Bestehorn, Holger Eggebrecht, Eckart Fleck, Maike Bestehorn, Rajendra H Mehta, Karl-Heinz Kuck
AIMS: Previous studies showed lower rates of in-hospital complications and mortality for patients undergoing surgical aortic valve replacement (sAVR) in high-volume compared with lower-volume hospitals. Smaller studies have suggested similar inverse relationship for transcatheter aortic valve implantation (TAVI). METHODS AND RESULTS: We analyzed all patients with non-emergent transfemoral (TF) TAVI procedures performed in 2014 in 87 German hospitals. We used the German Aortic Valve Score 2...
June 6, 2017: EuroIntervention
Pei Ying Guo, De Yun Ma, Hai Fu Guo
The 2-methylbiphenyl-4,4'-dicarboxylate (mbpdc(2-)) ligand has versatile coordination modes and can be used to construct multinuclear structures. Despite this, reports of the synthesis of coordination complexes involving this ligand are scarce. The title compound, poly[[triaquadi-μ3-hydroxido-hexakis(μ4-2-methylbiphenyl-4,4'-dicarboxylato)calcium(II)hexazinc(II)] monohydrate], {[CaZn6(C15H10O4)6(OH)2(H2O)3]·H2O}n, has been prepared by the hydrothermal assembly of Zn(NO3)2·6H2O, CaCl2 and 2-methylbiphenyl-4,4'-dicarboxylic acid...
June 1, 2017: Acta Crystallographica. Section C, Structural Chemistry
Junfeng Wang, Wen Liu, Tianzhong Liu
The attached cultivation for microalga has many superiorities over the conventional aqua-suspend methods, which make it a promising pathway to supply feedstock for microalgae based bio-refinery attempts. In this review, the current reports on bioreactor, application, modeling, substratum material and engineering aspects were summarized and the future research and developments should be focused on the following aspects: 1) Build principles and guidelines for rational structure design by studying the relationship of physiological properties with typical structures and light regimes; 2) Set up theory foundation of substratum material selection by studying the physic-chemical properties of algal cells and substratum materials; 3) Further understanding the mass transfer behaviors of both CO2 and nutrients in biofilm for enhanced growth rate and products accumulation; 4) New equipment and machines for inoculation, harvesting and moisture keeping should be developed and integrated with bioreactor structure...
May 22, 2017: Bioresource Technology
Nada Ben Ahmed, Sylvie Masse, Guillaume Laurent, Jean-Yves Piquemal, Claude Yéprémian, Roberta Brayner, Thibaud Coradin
Optical biosensors for the detection of toxic species in aqueous media were developed via the encapsulation of microalgae in sol-gel matrices. In a first step, the effect of cadmium(II), lead(II), and anthracene on the chlorophyll a fluorescence intensity of Anabaena flos-aquae, Chlorella vulgaris, and Euglena gracilis microalgae in suspension was studied. Complementary ATP-metry measurements demonstrated a direct relationship between optical response and pollutant toxicity, in a cell- and dose-dependent manner...
June 2, 2017: Analytical and Bioanalytical Chemistry
Jin Fan, Xiaoying Yue, Qinghua Sun, Shigong Wang
A severe dust event occurred from April 23 to April 27, 2014, in East Asia. A state-of-the-art online atmospheric chemistry model, WRF/Chem, was combined with a dust model, GOCART, to better understand the entire process of this event. The natural color images and aerosol optical depth (AOD) over the dust source region are derived from datasets of moderate resolution imaging spectroradiometer (MODIS) loaded on a NASA Aqua satellite to trace the dust variation and to verify the model results. Several meteorological conditions, such as pressure, temperature, wind vectors and relative humidity, are used to analyze meteorological dynamic...
June 2017: Journal of Environmental Sciences (China)
Ken Cheng, Elisabeth Müllner, Ali A Moazzami, Hanna Carlberg, Eva Brännäs, Jana Pickova
Aqua feeds traditionally rely on fishmeal as a protein source, which is costly and unsustainable. A new feed was formulated in the study with Baltic Sea sourced decontaminated fishmeal, Mytilus edulis and Saccharomyces cerevisiae, and given to Arctic char (Salvelinus alpinus) for ten months. The diet-induced changes on metabolic profile in fish plasma, liver, and muscle were studied relative to a fishmeal-based standard diet by using a (1)H NMR-based metabolomics approach. Fish fed the test diet had higher content of betaine and lower levels of trimethylamine-N-oxide and aromatic amino acids in plasma or tissues, which were mainly caused by the diet...
June 21, 2017: Journal of Agricultural and Food Chemistry
Tao Zheng, Zaixing Yang, Daxiang Gui, Zhiyong Liu, Xiangxiang Wang, Xing Dai, Shengtang Liu, Linjuan Zhang, Yang Gao, Lanhua Chen, Daopeng Sheng, Yanlong Wang, Juan Diwu, Jianqiang Wang, Ruhong Zhou, Zhifang Chai, Thomas E Albrecht-Schmitt, Shuao Wang
Metal-organic frameworks (MOFs) based on zirconium phosphonates exhibit superior chemical stability suitable for applications under harsh conditions. These compounds mostly exist as poorly crystallized precipitates, and precise structural information has therefore remained elusive. Furthermore, a zero-dimensional zirconium phosphonate cluster acting as secondary building unit has been lacking, leading to poor designability in this system. Herein, we overcome these challenges and obtain single crystals of three zirconium phosphonates that are suitable for structural analysis...
May 30, 2017: Nature Communications
Sandra Rost, Jennifer Giltnane, Jennifer M Bordeaux, Chuck Hitzman, Hartmut Koeppen, Scot D Liu
Part of developing therapeutics is the need to identify patients who will respond to treatment. For HER2-targeted therapies, such as trastuzumab, the expression level of HER2 is used to identify patients likely to receive benefit from therapy. Currently, chromogenic immunohistochemistry on patient tumor tissue is one of the methodologies used to assess the expression level of HER2 to determine eligibility for trastuzumab. However, chromogenic staining is fraught with serious drawbacks that influence scoring, which is additionally flawed due to the subjective nature of human/pathologist bias...
May 29, 2017: Laboratory Investigation; a Journal of Technical Methods and Pathology
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