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https://www.readbyqxmd.com/read/28647267/relationship-between-nutrients-and-plankton-biomass-in-the-turbidity-maximum-zone-of-the-pearl-river-estuary
#1
Zhen Shi, Jie Xu, Xiaoping Huang, Xia Zhang, Zhijian Jiang, Feng Ye, Ximei Liang
Nutrients, dissolved and particulate organic carbon and plankton (bacterio-, phyto- and zoo-) were compared in the turbidity maximum zone (TMZ) and adjacent areas (non-TMZ) in the Pearl River estuary. Our results showed that high levels of suspended substances had marked effect on dynamics of nutrients and plankton in the TMZ. Based on the cluster analysis of total suspended solids (TSS) concentrations, all stations were divided into two groups, TMZ with average TSS of 171mg/L and non-TMZ of 45mg/L. Suspended substances adsorbed PO4(3-) and dissolved organic carbon, resulting in higher particulate phosphorus and organic carbon (POC) and lower PO4(3-) and DOC in the TMZ, compared to the non-TMZ...
July 2017: Journal of Environmental Sciences (China)
https://www.readbyqxmd.com/read/28643863/design-of-iron-ii-pthalocyanine-fepc-derived-oxygen-reduction-electrocatalysts-for-high-power-density-microbial-fuel-cells
#2
Carlo Santoro, Rohan Gokhale, Barbara Mecheri, Alessandra D'Epifanio, Silvia Licoccia, Alexey Serov, Kateryna Artyushkova, Plamen Atanassov
Iron(II) Phthalocyanine (FePc) deposited onto two different carbonaceous supports was synthesized by the non-conventional pyrolysis-free method, studied in the reaction of oxygen reduction (ORR) in neutral media, incorporated in an air-breathing cathode structure and tested in operating microbial fuel cell (MFC) configuration. Rotating ring disk electrode (RRDE) analysis revealed high performances of the Fe-based catalysts compared with activated carbon (AC). It was shown that Black Pearls supported FePc (Fe-BP(N)) exhibits the highest performance in term of more positive onset, positive shift of half-wave potential and higher limiting as well as highest power density in operating MFC (243±7 μWcm-2) that was 33% higher than Fe-CNT(N) (182±5 μWcm-2)...
June 23, 2017: ChemSusChem
https://www.readbyqxmd.com/read/28643072/sages-guidelines-for-the-use-of-laparoscopy-during-pregnancy
#3
Jonathan P Pearl, Raymond R Price, Allison E Tonkin, William S Richardson, Dimitrios Stefanidis
No abstract text is available yet for this article.
June 22, 2017: Surgical Endoscopy
https://www.readbyqxmd.com/read/28643067/sages-endoluminal-treatments-for-gerd
#4
Jonathan Pearl, Eric Pauli, Brian Dunkin, Dimitrios Stefanidis
No abstract text is available yet for this article.
June 22, 2017: Surgical Endoscopy
https://www.readbyqxmd.com/read/28636940/hectd3-mediates-an-hsp90-dependent-degradation-pathway-for-protein-kinase-clients
#5
Zhaobo Li, Lihong Zhou, Chrisostomos Prodromou, Velibor Savic, Laurence H Pearl
Inhibition of the ATPase cycle of the HSP90 chaperone promotes ubiquitylation and proteasomal degradation of its client proteins, which include many oncogenic protein kinases. This provides the rationale for HSP90 inhibitors as cancer therapeutics. However, the mechanism by which HSP90 ATPase inhibition triggers ubiquitylation is not understood, and the E3 ubiquitin ligases involved are largely unknown. Using a siRNA screen, we have identified components of two independent degradation pathways for the HSP90 client kinase CRAF...
June 20, 2017: Cell Reports
https://www.readbyqxmd.com/read/28634894/pearls-never-write-a-research-grant-alone
#6
Michelle Ghert
No abstract text is available yet for this article.
June 20, 2017: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/28631742/kidney-cancer-diving-into-the-genome-of-papillary-rcc-unearths-therapeutic-pearls
#7
Annette Fenner
No abstract text is available yet for this article.
June 20, 2017: Nature Reviews. Urology
https://www.readbyqxmd.com/read/28631116/environmental-factors-and-zoonotic-pathogen-ecology-in-urban-exploiter-species
#8
REVIEW
Jamie L Rothenburger, Chelsea H Himsworth, Nicole M Nemeth, David L Pearl, Claire M Jardine
Knowledge of pathogen ecology, including the impacts of environmental factors on pathogen and host dynamics, is essential for determining the risk that zoonotic pathogens pose to people. This review synthesizes the scientific literature on environmental factors that influence the ecology and epidemiology of zoonotic microparasites (bacteria, viruses and protozoa) in globally invasive urban exploiter wildlife species (i.e., rock doves [Columba livia domestica], European starlings [Sturnus vulgaris], house sparrows [Passer domesticus], Norway rats [Rattus norvegicus], black rats [R...
June 19, 2017: EcoHealth
https://www.readbyqxmd.com/read/28629100/biomaterials-and-cells-for-cardiac-tissue-engineering-current-choices
#9
REVIEW
Rusha Chaudhuri, Madhumitha Ramachandran, Pearl Moharil, Megha Harumalani, Amit K Jaiswal
The major purpose of cardiac tissue engineering is to engineer cells on scaffolds and use it as a substitute to infarcted cardiac cells. With an ever-increasing risk of cardiac diseases there is an increasing need to have a stable and sustainable approach to cure such ailments. This review provides a comprehensive update on the cell sources and biomaterials essential for cardiac tissue engineering, ensuring their biocompatibility under a variety of conditions. Cells can be obtained from allogenic or autologous sources...
October 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28628728/characterizing-the-detection-threshold-for-optical-imaging-in-surgical-oncology
#10
Andrew C Prince, Aditi Jani, Melissa Korb, Kiranya E Tipirneni, Benjamin B Kasten, Eben L Rosenthal, Jason M Warram
BACKGROUND AND OBJECTIVES: Optical imaging to guide cancer resections is rapidly transitioning into the operating room. However, the sensitivity of this technique to detect subclinical disease is yet characterized. The purpose of this study was to determine the minimum range of cancer cells that can be detected by antibody-based fluorescence imaging. METHODS: 2LMP (breast), COLO-205 (colon), MiaPaca-2 (pancreas), and SCC-1 (head and neck) cells incubated in vitro with cetuximab-IRDye800CW (dose range 8...
June 19, 2017: Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28627283/epidemiological-investigation-of-euthanasia-in-an-ontario-animal-shelter
#11
Rachael Mozes, David L Pearl, Lee Niel, J Scott Weese
Objectives The objective was to evaluate factors associated with euthanasia in an animal shelter in Kitchener-Waterloo, Ontario, Canada. Methods Shelter data from 3737 cats admitted to the shelter between January and December 2011 were evaluated. Results Overall, 1989/3737 (53%) of admitted cats were euthanized. Male cats had greater odds of being euthanized than females (odds ratio [OR] 1.63, 95% confidence interval [CI] 1.29-2.05; P <0.001) and surrendered cats were more likely to be euthanized than strays (OR 38...
June 1, 2017: Journal of Feline Medicine and Surgery
https://www.readbyqxmd.com/read/28626463/cereal-crop-proteomics-systemic-analysis-of-crop-drought-stress-responses-towards-marker-assisted-selection-breeding
#12
REVIEW
Arindam Ghatak, Palak Chaturvedi, Wolfram Weckwerth
Sustainable crop production is the major challenge in the current global climate change scenario. Drought stress is one of the most critical abiotic factors which negatively impact crop productivity. In recent years, knowledge about molecular regulation has been generated to understand drought stress responses. For example, information obtained by transcriptome analysis has enhanced our knowledge and facilitated the identification of candidate genes which can be utilized for plant breeding. On the other hand, it becomes more and more evident that the translational and post-translational machinery plays a major role in stress adaptation, especially for immediate molecular processes during stress adaptation...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28624469/effects-of-protein-sources-on-growth-immunity-and-antioxidant-capacity-of-juvenile-pearl-oyster-pinctada-fucata-martensii
#13
Chuangye Yang, Ruijuan Hao, Yuewen Deng, Yongshan Liao, Qingheng Wang, Ruijiao Sun, Yu Jiao, Xiaodong Du
In this study, we formulated five diets, namely, P1, P2, P3, P4 and P5, with Chlorella sp. powder, Spirulina platensis powder, yeast powder, soybean meal and corn gluten, respectively, as major protein sources. A feeding experiment was designed to evaluate the effects of formulated diets on the growth performance, immunity and antioxidant and biomineralization capacity of juvenile pearl oyster (Pinctada fucata martensii). In the experiments, the five groups were separately fed with P1, P2, P3, P4 and P5 diets...
June 15, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28619191/outcomes-of-pci-in-relation-to-procedural%C3%A2-characteristics-and-operator%C3%A2-volumes-in%C3%A2-the-united-states
#14
Alexander C Fanaroff, Pearl Zakroysky, David Dai, Daniel Wojdyla, Matthew W Sherwood, Matthew T Roe, Tracy Y Wang, Eric D Peterson, Hitinder S Gurm, Mauricio G Cohen, John C Messenger, Sunil V Rao
BACKGROUND: Professional guidelines have reduced the recommended minimum number to an average of 50 percutaneous coronary intervention (PCI) procedures performed annually by each operator. Operator volume patterns and associated outcomes since this change are unknown. OBJECTIVES: The authors describe herein PCI operator procedure volumes; characteristics of low-, intermediate-, and high-volume operators; and the relationship between operator volume and clinical outcomes in a large, contemporary, nationwide sample...
June 20, 2017: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/28618662/a-one-year-on-line-multi-site-observational-study-on-water-soluble-inorganic-ions-in-pm2-5-over-the-pearl-river-delta-region-china
#15
Jian Liu, Dui Wu, Shaojia Fan, Xia Mao, Huizhong Chen
As the significant components of PM2.5, almost all of previous studies on water-soluble inorganic ions (WSIIs) have been limited by the use of single sampling station, short sampling times or low temporal resolution. This paper focuses on analysing one-year (2012) observations of WSIIs at a regional central (RCEN) site, a coastal urban (CURB) site and a coastal rural (CRUR) site in the Pearl River Delta region. On average, secondary inorganic aerosols (SIA) were the most abundant component and accounted for over 80% of the total WSIIs...
June 10, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28616187/ecological-effects-of-dams-alien-fish-and-physiochemical-environmental-factors-on-homogeneity-heterogeneity-of-fish-community-in-four-tributaries-of-the-pearl-river-in-china
#16
Lei Zeng, Lei Zhou, Ding-Li Guo, Dong-Hua Fu, Peng Xu, Shuang Zeng, Qin-Dong Tang, An-Luo Chen, Fei-Qiao Chen, Yong Luo, Gui-Feng Li
In this study, we aimed to characterize the fish community structure and identify the drivers contributing to homogenization/differentiation processes in four tributaries to the Pearl River, Guangxi Province, China, over the past few decades. We sampled 22 sites seasonally from 2013 through 2015, and these sites were selected based on archived records of previous sampling conducted in the 1980s. Jaccard's faunal similarity index, cluster analysis, and canonical correspondence analysis (CCA) were applied to describe the homogenization/differentiation of fish community and illustrate the potential effectors...
June 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/28610035/-i-leptobotia-i-i-micra-i-a-new-species-of-loach-teleostei-botiidae-from-guilin-southern-china
#17
Jörg Bohlen, Vendula Šlechtová
Leptobotia micra, new species, is described from the upper Li River (Pearl River basin) around Guilin in Guangxi province, southern China. The new species is evidently the smallest species of Leptobotia, with females of 45‒46 mm SL bearing oocytes. It can be distinguished from all other species of Leptobotia by a combination of the following characters: no dark bars or dorsal saddles on body, a row of white dots along dorsal midline, 4+34 vertebrae, a predorsal distance of 58.1‒59.0% SL, eye diameter 1...
April 3, 2017: Zootaxa
https://www.readbyqxmd.com/read/28607145/pearls-oy-sters-retrievable-and-awake-a-case-report-of-solitaire-stent-employment-for-venous-pulsatile-tinnitus
#18
Zhihua Du, Xinfeng Liu, Xiangyu Cao, Xinping Chen, Jing Mang, Jun Wang, Baomin Li
No abstract text is available yet for this article.
June 13, 2017: Neurology
https://www.readbyqxmd.com/read/28606863/transcriptome-analysis-of-the-immune-reaction-of-the-pearl-oyster-pinctada-fucata-to-xenograft-from-pinctada-maxima
#19
Jinfen Wei, Sigang Fan, Baosuo Liu, Bo Zhang, Jiaqi Su, Dahui Yu
The pearl oyster Pinctada maxima exhibits great difficulty to culture pearls through nuclear insertion with an allograft, but it is easy for P. fucata to culture pearls after allografting. If P. fucata could be used as a surrogate mother to culture P. maxima pearls, it would benefit the pearl culture industry of P. maxima. However, this is blocked by the immune rejection of P. fucata against P. maxima mantle grafts. In this study, the immune responses of P. fucata hemocyte to allograft and xenograft were investigated after transplantation by transcriptome analysis...
June 9, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28606613/distribution-of-heavy-metals-and-environmental-assessment-of-surface-sediment-of-typical-estuaries-in-eastern-china
#20
Shipu Bi, Yuan Yang, Chengfen Xu, Yong Zhang, Xiaobo Zhang, Xianrong Zhang
Estuary sediment is a major pollutant enrichment medium and is an important biological habitat. This sediment has attracted the attention of the marine environmental scientists because it is a more stable and effective medium than water for monitoring regional environmental quality conditions and trends. Based on a large amount of measurement data, we analyzed the concentrations, distribution, and sources of seven heavy metals (As, Cd, Cr, Cu, Hg, Pb, and Zn) in the surface sediment of typical estuaries that empty into the sea in eastern China: the Liaohe River Estuary, Yellow River Estuary, Yangtze River Estuary, Minjiang River Estuary, and Pearl River Estuary...
June 9, 2017: Marine Pollution Bulletin
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