Abstract:
:High content of organic matter in the downstream of watersheds underscored the severity of non-point source (NPS) pollution. The major objectives of this study were to characterize and quantify dissolved organic matter (DOM) in watersheds affected by NPS pollution, and to apply self-organizing map (SOM) and parallel factor analysis (PARAFAC) to assess fluorescence properties as proxy indicators for NPS pollution and labor-intensive routine water quality indicators. Water from upstreams and downstreams was sampled to measure dissolved organic carbon (DOC) concentrations and excitation-emission matrix (EEM). Five fluorescence components were modeled with PARAFAC. The regression analysis between PARAFAC intensities (Fmax) and raw EEM measurements indicated that several raw fluorescence measurements at target excitation-emission wavelength region could provide similar DOM information to massive EEM measurements combined with PARAFAC. Regression analysis between DOC concentration and raw EEM measurements suggested that some regions in raw EEM could be used as surrogates for labor-intensive routine indicators. SOM can be used to visualize the occurrence of pollution. Relationship between DOC concentration and PARAFAC components analyzed with SOM suggested that PARAFAC component 2 might be the major part of bulk DOC and could be recognized as a proxy indicator to predict the DOC concentration.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Zhang Y,Liang X,Wang Z,Xu Ldoi
10.1038/srep16079subject
Has Abstractpub_date
2015-11-03 00:00:00pages
16079issn
2045-2322pii
srep16079journal_volume
5pub_type
杂志文章abstract::Although most models suggest continental Antarctica was covered by ice during the Last Glacial Maximum (LGM) it has been speculated that endemic species of soil invertebrates could have survived the Pleistocene at high elevation habitats protruding above the ice sheets. We analyzed a series of soil samples from differ...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/srep26189
更新日期:2016-05-18 00:00:00
abstract::Xenotransplantation of human cancers into immunodeficient mice is a very useful approach for studying human tumor biology. However, the occasional occurrence of lymphomagenesis in some mice can spoil the model and must be investigated in detail. We found that a high percentage (32.5%, 26/80) of cancer patient-derived ...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/srep09447
更新日期:2015-03-30 00:00:00
abstract::A prophage vB_CibM-P1 was induced by mitomycin C from the epipelagic strain Citromicrobium bathyomarinum JL354, a member of the alpha-IV subcluster of marine aerobic anoxygenic phototrophic bacteria (AAPB). The induced bacteriophage vB_CibM-P1 had Myoviridae-like morphology and polyhedral heads (approximately capsid 6...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/srep07118
更新日期:2014-11-19 00:00:00
abstract::Immunoglobulin A is the dominant antibody isotype found in mucosal secretions and enforces host-microbiota symbiosis in mice, yet selective IgA-deficiency (sIgAd) in humans is often described as asymptomatic. Here, we determined the effects of IgA deficiency on human gut microbiota composition and evaluated the possib...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-019-49923-2
更新日期:2019-09-19 00:00:00
abstract::Combining with electrochemical corrosion measurements, immersion and hydrogen evolution testing performed in 0.9 wt.% NaCl solution at 37 °C, the corrosion resistance of an as-rolled Mg-3%Al-1%Zn alloy before and after a 3% compressive strain along the rolling direction was investigated. Results revealed that the corr...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-017-16351-z
更新日期:2017-11-22 00:00:00
abstract::The questions of how much abiotic environment contributes to explain species distributions, and which abiotic factors are the most influential, are key when projecting species realized niches in space and time. Here, we show that answers to these questions can be obtained by using species' ecological indicator values ...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-019-39133-1
更新日期:2019-02-28 00:00:00
abstract::Mixed Plasmodium malaria infections can lead to severe malaria. This systematic review and meta-analysis aimed to explore the prevalence of severe mixed Plasmodium malaria infection and to compare it with the prevalence of severe P. falciparum malaria mono-infection across the included studies. Original English-langua...
journal_title:Scientific reports
pub_type: 杂志文章,meta分析
doi:10.1038/s41598-020-68082-3
更新日期:2020-07-06 00:00:00
abstract::Nitric oxide (NO) regulates plant growth and development as well as responses to stress that enhanced its endogenous production. Arabidopsis plants exposed to a pulse of exogenous NO gas were used for untargeted global metabolomic analyses thus allowing the identification of metabolic processes affected by NO. At earl...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/srep37945
更新日期:2016-11-25 00:00:00
abstract::As nanotechnology becomes increasingly used in biomedicine, it is important to have techniques by which to examine the structure and dynamics of biologically-relevant molecules on the surface of engineered nanoparticles. Previous work has shown that Saturation-Transfer Difference (STD)-NMR can be used to explore the i...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-020-69185-7
更新日期:2020-07-23 00:00:00
abstract::This study aimed to investigate changes in types of dental arch form during adolescence and explore adolescent changes in size and form of dental arch. Hong Kong Chinese were recruited and digital dental arch models were obtained at ages 12, 15, and 18 years. Geometric morphometrics was used to investigate adolescent ...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-019-55073-2
更新日期:2019-12-06 00:00:00
abstract::For a broad class of input-output maps, arguments based on the coding theorem from algorithmic information theory (AIT) predict that simple (low Kolmogorov complexity) outputs are exponentially more likely to occur upon uniform random sampling of inputs than complex outputs are. Here, we derive probability bounds that...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-020-61135-7
更新日期:2020-03-10 00:00:00
abstract::Sterile liver inflammation and fibrosis are associated with many liver disorders of different etiologies. Both type 1 and type 2 inflammatory responses have been reported to contribute to liver pathology. However, the mechanisms controlling the balance between these responses are largely unknown. Natural killer T (NKT...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-020-78688-2
更新日期:2020-12-11 00:00:00
abstract::This study investigated the efficacy of a biphasic synthetic β-tricalcium phosphate/calcium sulfate (β-TCP/CS) bone graft substitute for compatibility with vancomycin (V) in combination with tobramycin (T) or gentamicin (G) evidenced by the duration of potency and the prevention and killing efficacies of P. aeruginosa...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-020-80764-6
更新日期:2021-01-14 00:00:00
abstract::New strategies are needed to develop better tools to control TB, including identification of novel antigens for vaccination. Such Mtb antigens must be expressed during Mtb infection in the major target organ, the lung, and must be capable of eliciting human immune responses. Using genome-wide transcriptomics of Mtb in...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/srep37793
更新日期:2016-11-28 00:00:00
abstract::Considering environmental concerns regarding air pollution which is induced by burning fossil fuels to generate electrical power, utilizing solar energy as a green and sustainable energy source is of great interest. This study proposes a novel framework to determine the optimal location for constructing solar photovol...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-020-65165-z
更新日期:2020-05-18 00:00:00
abstract::The transglutaminase (TG) family comprises eight isozymes that form the isopeptide bonds between glutamine and lysine residues and contribute to the fibrotic diseases via crosslinking-mediated stabilization of ECM and the activation of TGF-β in several tissues. However, despite a growing body of evidence implicating T...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/srep45049
更新日期:2017-03-22 00:00:00
abstract::Graft contracture is a common problem associated with the regeneration processes of tissue-engineered bladders. Currently, most strategies used for incorporating bioactive molecules into biomaterial designs do not work during all phases of tissue regeneration. In this study, we used a growth factor-PLGA nanoparticle t...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/srep20784
更新日期:2016-02-08 00:00:00
abstract::Hydraulic extended-reach limit (HERL) model of horizontal extended-reach well (ERW) can predict the maximum measured depth (MMD) of the horizontal ERW. The HERL refers to the well's MMD when drilling fluid cannot be normally circulated by drilling pump. Previous model analyzed the following two constraint conditions, ...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-017-03261-3
更新日期:2017-06-08 00:00:00
abstract::Emission of the trace gas dimethylsulphide (DMS) from the ocean influences the chemical and optical properties of the atmosphere, and the olfactory landscape for foraging marine birds, turtles and mammals. DMS concentration has been seen to vary across seasons and latitudes with plankton taxonomy and activity, and fol...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/srep32325
更新日期:2016-08-31 00:00:00
abstract::Multiplexed error-robust fluorescence in situ hybridization (MERFISH) allows simultaneous imaging of numerous RNA species in their native cellular environment and hence spatially resolved single-cell transcriptomic measurements. However, the relatively modest brightness of signals from single RNA molecules can become ...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-019-43943-8
更新日期:2019-05-22 00:00:00
abstract::Chinese olive contains plenty of polyphenols, which possess a wide range of biological actions. In this study, we aimed to investigate the role of the ethyl acetate fraction of Chinese olive fruit extract (CO-EtOAc) in the modulation of lipid accumulation in vitro and in vivo. In cellular studies, CO-EtOAc attenuated ...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-018-19553-1
更新日期:2018-01-18 00:00:00
abstract::Circulating tumor cells (CTCs) are important clinical indicators for prognosis and treatment efficacy. However, CTC investigation is hampered by their low number, making the establishment of permanent CTC lines very challenging. We derived and characterized nine CTC lines using blood samples from a patient with metast...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-018-34365-z
更新日期:2018-10-29 00:00:00
abstract::Mesenchymal stromal cells (MSCs) are a potential therapy for many chronic inflammatory diseases due to their regenerative, immunologic and anti-inflammatory properties. The two-way dialogue between MSCs and macrophages is crucial to tissue regeneration and repair. Previous research demonstrated that murine adipose-der...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-019-56835-8
更新日期:2019-12-30 00:00:00
abstract::Membrane fouling remains an obstacle to wide-spread applications of membrane bioreactors (MBRs) for wastewater treatment and reclamation. Herein, we report a simple method to prepare a composite conductive microfiltration (MF) membrane by introducing a stainless steel mesh into a polymeric MF membrane and to effective...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/srep09268
更新日期:2015-03-18 00:00:00
abstract::In the course of sample preparation for Next Generation Sequencing (NGS), DNA is fragmented by various methods. Fragmentation shows a persistent bias with regard to the cleavage rates of various dinucleotides. With the exception of CpG dinucleotides the previously described biases were consistent with results of the D...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-020-65406-1
更新日期:2020-05-25 00:00:00
abstract::While is widely acknowledged that nonmuscle myosin II (NMMII) enables stress fibers (SFs) to generate traction forces against the extracellular matrix, little is known about how specific NMMII isoforms and functional domains contribute to SF mechanics. Here we combine biophotonic and genetic approaches to address thes...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/srep13736
更新日期:2015-09-04 00:00:00
abstract::Articular cartilage (AC) lacks the ability to self-repair and cell-based approaches, primarily based on using chondrocytes and mesenchymal stem cells (MSCs), are emerging as effective technology to restore cartilage functionality, because cells synergic functionality may support the maintenance of chondrogenic phenoty...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-019-51070-7
更新日期:2019-10-10 00:00:00
abstract::Tunneling nanotubes (TNTs) are actin-based membranous structures bridging distant cells for intercellular communication. We define roles for TNTs in stress adaptation and treatment resistance in prostate cancer (PCa). Androgen receptor (AR) blockade and metabolic stress induce TNTs, but not in normal prostatic epithel...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-019-44346-5
更新日期:2019-05-24 00:00:00
abstract::Grapevine is an important and extensively grown fruit crop, which is severely hampered by drought worldwide. So, comprehending the impact of drought on grapevine genetic resources is necessary. In the present study, RNA-sequencing was executed using cDNA libraries constructed from both drought-stress and control plant...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-017-13464-3
更新日期:2017-10-13 00:00:00
abstract::Immune parameters show characteristic normal baseline levels and variance in the population. We characterised the degree of inter-individual and within-individual variation over one-year time period in 33 immune cell subsets by flow cytometry in peripheral blood mononuclear cells from 43 healthy young adult volunteers...
journal_title:Scientific reports
pub_type: 杂志文章
doi:10.1038/s41598-019-51294-7
更新日期:2019-10-14 00:00:00