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  • 1
    In: International Journal of Cancer, Wiley, Vol. 153, No. 6 ( 2023-09-15), p. 1273-1286
    Abstract: Chemotherapy is the standard therapy for small cell lung cancer (SCLC), but relapse is common and the 2‐year survival rate remains low. Given the contribution of the tumor microenvironment (TME) to cancer development and response to treatment, we analyzed here how chemotherapy alters the TME in SCLC using single‐cell RNA sequencing. The comparison between neuroendocrine cells and other epithelial cells in five chemotherapy‐naive patients identified upregulation of Notch‐inhibiting genes, such as DLL3 and HES6 . Analysis of genes differentially expressed between five patients receiving chemotherapy and five treatment‐naive patients in cells in the TME showed that chemotherapy promoted antigen presentation and senescence in neuroendocrine cells, upregulated ID1 to enhance angiogenic activities of stalk‐like endothelial cells and strengthened vascular endothelial growth factor signaling in lymphatic endothelial cells. Chemotherapy also promoted the remodeling of extracellular matrix by fibroblasts and upregulated interferon‐mediated antitumor immune responses by B and T cells. Our single‐cell transcriptome analysis provides insights into how chemotherapy affects the TME in SCLC, which may guide efforts to make therapy more effective.
    Type of Medium: Online Resource
    ISSN: 0020-7136 , 1097-0215
    URL: Issue
    RVK:
    Language: English
    Publisher: Wiley
    Publication Date: 2023
    detail.hit.zdb_id: 218257-9
    detail.hit.zdb_id: 1474822-8
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  • 2
    Online Resource
    Online Resource
    Wiley ; 2022
    In:  International Journal of Climatology Vol. 42, No. 16 ( 2022-12-30), p. 10126-10137
    In: International Journal of Climatology, Wiley, Vol. 42, No. 16 ( 2022-12-30), p. 10126-10137
    Abstract: Climate change has resulted in an increase in drought in most global land areas, mainly due to a decrease in regional precipitation (P) or an increase in potential evapotranspiration (PET) induced by climate warming. However, knowledge on the contributions of P and PET to long‐term changes in global drought duration and intensity is still limited. In this study, we quantitatively analysed the respective contributions of P and PET to long‐term drought duration and intensity on a global scale, using standardized precipitation evapotranspiration index (SPEI) and different inputs of P and PET. The results showed that the mean drought duration and intensity experienced an increasing trend in most global land areas during 1950–2020, especially in western United States, eastern Amazon, Mediterranean region, Africa, western Asia, and northeastern Asia. The contributions of P and PET to historical drought evolution vary from regions. The results show that while increasing PET has extensive contribution to drought increase, regional increases in long‐term drought duration and intensity are largely determined by the variability in P, and the contribution of P to the increase in long‐term drought can even reach 100%. This study has great implications in improving physical understanding of long‐term drought evolution under climate change.
    Type of Medium: Online Resource
    ISSN: 0899-8418 , 1097-0088
    URL: Issue
    RVK:
    Language: English
    Publisher: Wiley
    Publication Date: 2022
    detail.hit.zdb_id: 1491204-1
    SSG: 14
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  • 3
    Online Resource
    Online Resource
    Wiley ; 2018
    In:  Journal of Cellular Biochemistry Vol. 119, No. 7 ( 2018-07), p. 6104-6112
    In: Journal of Cellular Biochemistry, Wiley, Vol. 119, No. 7 ( 2018-07), p. 6104-6112
    Abstract: Natural products are a great source of cancer chemotherapeutic agents. In the present study, the anticancer effects of cucurbitacin I on A549 cells were investigated. Cucurbitacin I decreased cell viability, inhibited colony formation, and induced apoptosis in A549 cells. Cucurbitacin I caused accumulation of autophagosome and dose‐dependent expression of LC3II protein. Autophagy inhibitors 3‐methyladenine (3‐MA) inhibited autophagy induced by cucurbitacin I and relieved cucurbitacin I‐triggered cell death and apoptosis in A549 Cells. Cucurbitacin I treatment inhibits the ERK activation and the downstream phosphorylation level of mTOR and STAT3, but not the PI3K/Akt pathway. Furthermore, treatment with the mTOR activator MHY‐1485, which also suppressed cucurbitacin I‐induced LC3II expression, and also reversed cucurbitacin I‐induced cell death and apoptosis. Taken together, these results suggest that cucurbitacin I induced pro‐death autophagy through ERK/mTOR/STAT3 signaling cascade in A549 cells.
    Type of Medium: Online Resource
    ISSN: 0730-2312 , 1097-4644
    URL: Issue
    Language: English
    Publisher: Wiley
    Publication Date: 2018
    detail.hit.zdb_id: 1479976-5
    SSG: 12
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  • 4
    Online Resource
    Online Resource
    Wiley ; 2021
    In:  Transactions in GIS Vol. 25, No. 4 ( 2021-08), p. 1970-1990
    In: Transactions in GIS, Wiley, Vol. 25, No. 4 ( 2021-08), p. 1970-1990
    Abstract: The sky‐view factor (SVF) in the urban street canyon is a single point‐specific measurement that can only represent the ratio of the visible sky of a specific point. The positional error of the SVF observation point (PE‐SVFOP) to the measurement of the SVF for specific applications is often ignored. This study conducted a quantitative exploration of the positional error in SVF measurements (PE‐SVF) by comparing the SVF estimated at the desired SVF observation point and the corresponding actual SVF observation point. A numerical geometric‐based method was applied in urban street canyons with five typical aspect ratios to explore the effect of both the lateral and vertical positional error of SVF observation points on the measurement of SVF. An empirical case study using a simulation‐based method was then conducted with a 3D city model of a typical street canyon in Hong Kong. The empirical results show that the average and maximum PE‐SVFs were −0.0051 and 0.0181, respectively, and the average and maximum relative PE‐SVFs (RPE‐SVFs) were 7.68 and 20.37%, respectively. An open‐source toolbox was developed to evaluate the PE‐SVF and RPE‐SVF, which can assist specific SVF applications with a more comprehensive consideration of the PE‐SVF.
    Type of Medium: Online Resource
    ISSN: 1361-1682 , 1467-9671
    URL: Issue
    Language: English
    Publisher: Wiley
    Publication Date: 2021
    detail.hit.zdb_id: 2035222-0
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  • 5
    Online Resource
    Online Resource
    Wiley ; 2018
    In:  Color Research & Application Vol. 43, No. 2 ( 2018-04), p. 198-208
    In: Color Research & Application, Wiley, Vol. 43, No. 2 ( 2018-04), p. 198-208
    Abstract: Creating a satisfying qualitative color scheme from scratch may be difficult for novice mapmakers and experts. A probability‐based method is proposed to identify knowledge regarding qualitative color selection from readily available color schemes and formalize the discovered knowledge to assist in color creation. An unsupervised method to extract the general trends of color selection is presented, and the issue of qualitative color selection is translated into a multi‐constraint optimization problem. A feasible solution for achieving the global optimum is then provided. A probability‐based method is also proposed to match abstract color values with specific mapping features. This proposed approach is evaluated in a case study. The results of the case study suggest that the proposed method allows users to create qualitative color schemes more efficiently and confidently.
    Type of Medium: Online Resource
    ISSN: 0361-2317 , 1520-6378
    URL: Issue
    Language: English
    Publisher: Wiley
    Publication Date: 2018
    detail.hit.zdb_id: 2001240-8
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  • 6
    Online Resource
    Online Resource
    Wiley ; 2018
    In:  Color Research & Application Vol. 43, No. 4 ( 2018-08), p. 569-585
    In: Color Research & Application, Wiley, Vol. 43, No. 4 ( 2018-08), p. 569-585
    Abstract: Creating a satisfying quantitative color scheme is challenging for both novices and experts. Geovisualization often suffers from the misuse and misunderstanding of quantitative color schemes. This article presents an adaptive method to create ready‐to‐use quantitative schemes. A probability‐based method for color selection is presented to quantify the selection of quantitative colors from learning samples of varying popularity. To shape the color transitions, a regression analysis is performed to fit the mathematical curves for the transitions of hue, saturation, and brightness. Finally, the problem of creating satisfying quantitative schemes is translated into a multiconstraint optimization problem. A discretize‐and‐filter method is also presented to solve the optimization problem of globally identifying a suitable scheme in a continuous color space. The proposed method is evaluated with a case study, and the results indicate that the proposed method can derive satisfying schemes. In addition, the proposed method is adaptive to mapping feature, target reader and target device.
    Type of Medium: Online Resource
    ISSN: 0361-2317 , 1520-6378
    URL: Issue
    Language: English
    Publisher: Wiley
    Publication Date: 2018
    detail.hit.zdb_id: 2001240-8
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  • 7
    In: Thoracic Cancer, Wiley, Vol. 15, No. 2 ( 2024-01), p. 111-121
    Abstract: The lung has a sophisticated microbiome, and respiratory illnesses are greatly influenced by the lung microbiota. Despite the fact that numerous studies have shown that lung cancer patients have a dysbiosis as compared to healthy people, more research is needed to explore the association between the microbiota dysbiosis and immune profile within the tumor microenvironment (TME). Methods In this study, we performed metagenomic sequencing of tumor and normal tissues from 61 non‐small cell lung cancer (NSCLC) patients and six patients with other lung diseases. In order to characterize the impact of the microbes in TME, the cytokine concentrations of 24 lung tumor and normal tissues were detected using a multiple cytokine panel. Results Our results showed that tumors had lower microbiota diversity than the paired normal tissues, and the microbiota of NSCLC was enriched in Proteobacteria , Firmicutes , and Actinobacteria . In addition, proinflammatory cytokines such as IL‐8, MIF, TNF‐ α, and so on, were significantly upregulated in tumor tissues. Conclusion We discovered a subset of bacteria linked to host inflammatory signaling pathways and, more precisely, to particular immune cells. We determined that lower airway microbiome dysbiosis may be linked to the disruption of the equilibrium of the immune system causing lung inflammation. The spread of lung cancer may be linked to specific bacteria.
    Type of Medium: Online Resource
    ISSN: 1759-7706 , 1759-7714
    URL: Issue
    Language: English
    Publisher: Wiley
    Publication Date: 2024
    detail.hit.zdb_id: 2559245-2
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  • 8
    Online Resource
    Online Resource
    Wiley ; 2010
    In:  Transactions in GIS Vol. 14, No. s1 ( 2010-07), p. 59-83
    In: Transactions in GIS, Wiley, Vol. 14, No. s1 ( 2010-07), p. 59-83
    Abstract: Introducing Clifford algebra as the mathematical foundation, a unified spatio‐temporal data model and hierarchical spatio‐temporal index are constructed by linking basic data objects, like pointclouds and Spatio‐Temporal Hyper Cubes of different dimensions, within the multivector structure of Clifford algebra. The transformation from geographic space into homogeneous and conformal space means that geometric, metric and many other kinds of operators of Clifford algebra can be implemented and we then design the shortest path, high‐dimensional Voronoi and unified spatial‐temporal process analyses with spacetime algebra. Tests with real world data suggest these traditional GIS analysis algorithms can be extended and constructed under Clifford Algebra framework, which can accommodate multiple dimensions. The prototype software system CAUSTA (Clifford Algebra based Unified Spatial‐Temporal Analysis) provides a useful tool for investigating and modeling the distribution characteristics and dynamic process of complex geographical phenomena under the unified spatio‐temporal structure.
    Type of Medium: Online Resource
    ISSN: 1361-1682 , 1467-9671
    URL: Issue
    Language: English
    Publisher: Wiley
    Publication Date: 2010
    detail.hit.zdb_id: 2035222-0
    SSG: 14
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  • 9
    Online Resource
    Online Resource
    Wiley ; 2011
    In:  Environmental Toxicology and Chemistry Vol. 30, No. 7 ( 2011-07), p. 1576-1581
    In: Environmental Toxicology and Chemistry, Wiley, Vol. 30, No. 7 ( 2011-07), p. 1576-1581
    Abstract: Clodinafop‐propargyl, an aryloxyphenoxypropionate herbicide, is widely used for the control of annual grasses. However, research focusing on the ecotoxicity of this herbicide is limited. The present study employed zebrafish ( Danio rerio ) as a model to investigate its developmental toxicity. Embryos were exposed to a range of concentrations from 0.2 µM to 5 µM starting at late cleavage stage (2 h postfertilization, [hpf]) or late gastrulation stage (10 hpf). The results showed that the two exposure strategies had the same minimum teratogenic concentration of 0.6 µM but caused different groups of morphogenetic malformations. When exposure was initiated at 2 hpf, clodinafop‐propargyl caused various embryonic phenotypes, including embryos with a fin gap in the ventral tail and embryos with coiled tail. When exposure was initiated at 10 hpf, clodinafop‐propargyl resulted in failure of the tail to detach, in which the ventral tissues failed to grow out but instead adhered to the y olk extension, and the defect differed to various degrees among embryos. Similar effects were observed for embryos exposed to clodinafop, the metabolite of clodinafop‐propargyl. Because these defects were mainly confined to the posterior and ventral region that derived from ventral blastoderm cells, we have evaluated the expression of the ventral mesoderm marker gene gata‐1 and ventral ectoderm marker gene gata‐3. No significant alteration was seen in gata‐1 expression except for the expanded blood islands, whereas the expression of gata‐3 was significantly reduced. Our findings showed that clodinafop‐propargyl exposure disturbed embryonic patterning and fate specification of ventrally derived gastrula ectoderm cells. Environ. Toxicol. Chem. 2011; 30:1576–1581. © 2011 SETAC
    Type of Medium: Online Resource
    ISSN: 0730-7268 , 1552-8618
    URL: Issue
    Language: English
    Publisher: Wiley
    Publication Date: 2011
    detail.hit.zdb_id: 2027441-5
    SSG: 12
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  • 10
    Online Resource
    Online Resource
    Wiley ; 2012
    In:  Journal of Food Science Vol. 77, No. 5 ( 2012-05), p. T99-T104
    In: Journal of Food Science, Wiley, Vol. 77, No. 5 ( 2012-05), p. T99-T104
    Type of Medium: Online Resource
    ISSN: 0022-1147
    URL: Issue
    Language: English
    Publisher: Wiley
    Publication Date: 2012
    detail.hit.zdb_id: 2006705-7
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