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  • 1
    In: Advanced Materials, Wiley, Vol. 32, No. 45 ( 2020-11)
    Abstract: Low‐symmetry 2D materials with unique anisotropic optical and optoelectronic characteristics have attracted a lot of interest in fundamental research and manufacturing of novel optoelectronic devices. Exploring new and low‐symmetry narrow‐bandgap 2D materials will be rewarding for the development of nanoelectronics and nano‐optoelectronics. Herein, sulfide niobium (NbS 3 ), a novel transition metal trichalcogenide semiconductor with low‐symmetry structure, is introduced into a narrowband 2D material with strong anisotropic physical properties both experimentally and theoretically. The indirect bandgap of NbS 3 with highly anisotropic band structures slowly decreases from 0.42 eV (monolayer) to 0.26 eV (bulk). Moreover, NbS 3 Schottky photodetectors have excellent photoelectric performance, which enables fast photoresponse (11.6 µs), low specific noise current (4.6 × 10 −25 A 2 Hz −1 ), photoelectrical dichroic ratio (1.84) and high‐quality reflective polarization imaging (637 nm and 830 nm). A room‐temperature specific detectivity exceeding 10 7 Jones can be obtained at the wavelength of 3 µm. These excellent unique characteristics will make low‐symmetry narrow‐bandgap 2D materials become highly competitive candidates for future anisotropic optical investigations and mid‐infrared optoelectronic applications.
    Type of Medium: Online Resource
    ISSN: 0935-9648 , 1521-4095
    URL: Issue
    RVK:
    Language: English
    Publisher: Wiley
    Publication Date: 2020
    detail.hit.zdb_id: 1474949-X
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  • 2
    In: Geological Journal, Wiley, Vol. 52, No. 3 ( 2017-05), p. 437-453
    Abstract: The Bujinhei region, situated in the southern reach of the Great Xing'an Range, has experienced multistage tectonic‐magmatic activities, which have led to the formation of different stages and types of magmatic rocks. LA‐ICP‐MS zircon U–Pb dating was performed, and geochemical data were obtained for magmatic rocks samples from the Bujinhei area to analyse the times of magmatic rocks and their tectonic setting. Zircon U–Pb dating indicates that Middle Permian (269.8 Ma) magmatic event formed two‐mica granite, and Middle Jurassic (158–170 Ma) magmatic events formed monzogranite, quartz monzonite‐porphyry and granite porphyry. Chemical analyses indicate that the Middle Permian two‐mica granite is S‐type granite, rich in SiO 2 , Al 2 O 3 and K 2 O and low in Na 2 O, A/CNK  〉  1. Middle Jurassic monzogranite is a metaluminous I‐type granite, rich in SiO 2 , Al 2 O 3 and K 2 O and low in Na 2 O and CaO. Quartz monzonite porphyry and granite porphyry are high in K 2 O and peraluminous and derived from a granitic liquid as a result of strong interaction with hydrothermal fluid during the late magmatic stage; they have high Zr saturation temperature and belong to A‐type granites. Geochemically, two‐mica granite formed in a compressional tectonic regime related to collision, whereas Middle Jurassic intrusive rocks have affinities with intrusive rocks from the extensional environment influenced by post‐collision. Therefore, the southern Great Xing'an Range has experienced the collisional orogenesis of the Central Asian Orogenic Belt in the Middle Permian, whereas in the Middle Jurassic, the southern Great Xing'an Range turned into a post‐collision extensional setting influenced by the Mongol–Okhotsk tectonic regime. Copyright © 2016 John Wiley & Sons, Ltd.
    Type of Medium: Online Resource
    ISSN: 0072-1050 , 1099-1034
    URL: Issue
    Language: English
    Publisher: Wiley
    Publication Date: 2017
    detail.hit.zdb_id: 1479201-1
    SSG: 13
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  • 3
    In: Journal of the Science of Food and Agriculture, Wiley, Vol. 103, No. 5 ( 2023-03-30), p. 2378-2388
    Abstract: Dietary astaxanthin (AST) exhibits the ability to resist lipid accumulation and stimulate hepatic autophagy. Natural AST predominantly exists in stable esterified forms. More importantly, in our previous study, docosahexaenoic acid‐acylated AST monoester (AST‐DHA) possessed better stability, bioavailability, and neuroprotective ability than AST in free and diester form. However, the AST‐DHA mechanisms of action in regulating the obese phenotype and autophagy of the central nervous system remain unclear. Results High‐fat diet (HFD)‐fed C57BL/6J mice were orally administered AST‐DHA (50 mg/kg body weight/d) for 3 days or 8 weeks. AST‐DHA supplementation alleviated HFD‐induced abnormal body weight gain, significantly enhanced autophagy with an increased microtubule‐associated protein light chain 3 II/I (LC3II/I) ratio, and reduced the accumulation of p62/sequestosome 1 (SQSTM1) in the hypothalamus rather than in the hippocampus. Mechanistically, AST‐DHA effectively promoted autophagy and autophagosome formation, and most notably rescued the HFD‐impaired autophagosome‐lysosome fusion (indicated by the colocalization of LC3 and LAMP1) by regulating mTOR‐ and AMPK‐induced phosphorylation of ULK1. Consequently, AST‐DHA enhanced hypothalamic autophagy, leading to pro‐opiomelanocortin (POMC) cleavage to produce alpha‐melanocyte‐stimulating hormone (α‐MSH). Conclusions This study identified AST‐DHA as an enhancer of autophagy that plays a beneficial role in restoring hypothalamic autophagy, and as a new potential therapeutic agent against HFD‐induced obesity. © 2023 Society of Chemical Industry.
    Type of Medium: Online Resource
    ISSN: 0022-5142 , 1097-0010
    URL: Issue
    Language: English
    Publisher: Wiley
    Publication Date: 2023
    detail.hit.zdb_id: 2001807-1
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  • 4
    In: Lipids, Wiley, Vol. 58, No. 5 ( 2023-09), p. 229-240
    Abstract: Alcoholic liver disease (ALD) is a significant risk factor in the global disease burden. The antioxidants vitamin C (Vc) and N ‐acetyl cysteine (NAC) have shown hepatoprotective effects in preventing and treating ALD. However, the correlation between the improved effect of antioxidants and lipid metabolism is still unclear. In this study, AML12 cells and C57BL/6 mice stimulated with alcohol were used to investigate the protective effects and potential mechanisms of two antioxidants (Vc and NAC) on alcoholic liver injury. Results showed that Vc and NAC attenuated intracellular lipid accumulation and oxidative damage induced by excessive alcohol exposure in hepatic AML12 cells. The in vivo results indicated that antioxidants ameliorated alcohol‐induced changes in histopathology, reducing the levels of alcohol metabolizing factors and aspartate aminotransferase (AST), alanine aminotransferase (ALT), triglyceride (TG), and total cholesterol (TC) contents, which demonstrated that antioxidants effectively mitigated liver injury in ALD mice. Further studies showed that antioxidants reversed the disruption of fatty acid (FA) synthesis and lipid transport induced by alcohol exposure, and restored phospholipid levels. Especially, Vc and NAC increased the endogenous antioxidant plasmenyl phosphatidylethanolamine (PlsEtn). Additionally, antioxidants ameliorated the alcohol‐impaired mitochondrial function and inhibited excessive oxidative stress. In conclusion, antioxidants can regulate lipid metabolism and phospholipid homeostasis, which in turn inhibit oxidative stress and thereby exert protective effects against ALD.
    Type of Medium: Online Resource
    ISSN: 0024-4201 , 1558-9307
    URL: Issue
    Language: English
    Publisher: Wiley
    Publication Date: 2023
    detail.hit.zdb_id: 2030265-4
    SSG: 12
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  • 5
    In: Journal of Applied Polymer Science, Wiley, Vol. 138, No. 11 ( 2021-03-15)
    Abstract: Poly(vinylidene fluoride‐co‐hexafluoropropylene) (PVDF‐HFP)‐based gel polymer electrolyte (GPE) is considered one of the promising candidate electrolytes in the polymer lithium ion battery (LIB) because of its free standing, shape versatility, security, flexibility, lightweight, reliability, and so on. However, the pristine PVDF‐HFP GPE cannot still meet the requirement of large‐scale LIBs and other electrochemical devices due to its relatively low ionic conductivity and deterioration of mechanical strength caused by the incorporation of organic liquid electrolyte into the polymer matrix as well as high cost. In order to overcome above deficiencies of PVDF‐HFP based GPE, ultraviolet (UV)‐curable semi‐interpenetrating polymer network is designed and synthesized through UV‐irradiation technique, and the as‐prepared semi‐interpenetrating matrix is constituted by pentaerythritol tetracrylate polymer network and PVDF‐HFP. The ionic conductivity of the optimized GPE is as high as 5 × 10 −4  S/cm and electrochemical window is up to 4.8 V at room temperature. Especially, the LIB prepared by GPE shows the high initial discharge specific capacity of 151 mAh/g at 0.5 C and good rate capability. Therefore, the semi‐interpenetrating GPE based on PVDF‐HFP exhibits a promising prospect for the application of rechargeable LIBs.
    Type of Medium: Online Resource
    ISSN: 0021-8995 , 1097-4628
    URL: Issue
    Language: English
    Publisher: Wiley
    Publication Date: 2021
    detail.hit.zdb_id: 1491105-X
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  • 6
    In: Advanced Science, Wiley, Vol. 9, No. 35 ( 2022-12)
    Abstract: Outbreaks of coronaviruses (CoVs), especially severe acute respiratory syndrome coronavirus 2 (SARS‐CoV‐2), have posed serious threats to humans and animals, which urgently calls for effective broad‐spectrum antivirals. RNA‐dependent RNA polymerase (RdRp) plays an essential role in viral RNA synthesis and is an ideal pan‐coronaviral therapeutic target. Herein, based on cryo‐electron microscopy and biochemical approaches, gossypol (GOS) is identified from 881 natural products to directly block SARS‐CoV‐2 RdRp, thus inhibiting SARS‐CoV‐2 replication in both cellular and mouse infection models. GOS also acts as a potent inhibitor against the SARS‐CoV‐2 variant of concern (VOC) and exerts same inhibitory effects toward mutated RdRps of VOCs as the RdRp of the original SARS‐CoV‐2. Moreover, that the RdRp inhibitor GOS has broad‐spectrum anti‐coronavirus activity against alphacoronaviruses (porcine epidemic diarrhea virus and swine acute diarrhea syndrome coronavirus), betacoronaviruses (SARS‐CoV‐2), gammacoronaviruses (avian infectious bronchitis virus), and deltacoronaviruses (porcine deltacoronavirus) is showed. The findings demonstrate that GOS may serve as a promising lead compound for combating the ongoing COVID‐19 pandemic and other coronavirus outbreaks.
    Type of Medium: Online Resource
    ISSN: 2198-3844 , 2198-3844
    URL: Issue
    Language: English
    Publisher: Wiley
    Publication Date: 2022
    detail.hit.zdb_id: 2808093-2
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  • 7
    Online Resource
    Online Resource
    Wiley ; 2021
    In:  International Journal of Food Science & Technology Vol. 56, No. 5 ( 2021-05), p. 2492-2503
    In: International Journal of Food Science & Technology, Wiley, Vol. 56, No. 5 ( 2021-05), p. 2492-2503
    Abstract: An improved gas chromatography‐based analytical method for the simultaneous separation of seventy‐two fatty acids was developed. Twenty‐six types of trans fatty acids and conjugated linoleic acids were separated and identified with this method, especially trans C18 isomers. This method was confirmed to be high throughput and have high sensitivity and a low detection limit. It was successfully applied to separate and identify fatty acids in fresh basil seed oil. The linolenic acid content (51.67 g/100 g) was highest in basil seed oil, followed by linoleic acid (20.16 g/100 g) and oleic acid (12.70 g/100 g). These unsaturated fatty acids in fresh basil seed oil were transformed into trans fatty acids, conjugated linoleic acids and saturated fatty acids after heating to a certain temperature for an adequate duration, and the formation mechanisms were characterised.
    Type of Medium: Online Resource
    ISSN: 0950-5423 , 1365-2621
    URL: Issue
    Language: English
    Publisher: Wiley
    Publication Date: 2021
    detail.hit.zdb_id: 2016518-3
    detail.hit.zdb_id: 2401430-8
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  • 8
    In: Journal of the American Ceramic Society, Wiley, Vol. 98, No. 7 ( 2015-07), p. 2255-2263
    Abstract: High surface area BiFeO 3 ( BFO ) bowl arrays photocatalyst loaded with different size noble metal nanoparticles were successfully prepared by combining templates method and thermal evaporation followed by heating. The structural and optical properties of the BiFeO 3 bowl arrays and the composite M@ BFO bowl arrays (M = Ag, Au) were comparatively characterized. The composite M@ BFO bowl arrays showed much higher photocatalytic performance than the pure BFO bowl arrays. The enhanced photocatalytic property of the composite structure could be ascribed to the enhanced near‐field amplitudes of localized surface plasmon of the noble metal nanoparticles which boost the separation of electron–hole pairs and the transfer mechanism of electrons.
    Type of Medium: Online Resource
    ISSN: 0002-7820 , 1551-2916
    URL: Issue
    RVK:
    Language: English
    Publisher: Wiley
    Publication Date: 2015
    detail.hit.zdb_id: 2008170-4
    detail.hit.zdb_id: 219232-9
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  • 9
    In: Solar RRL, Wiley, Vol. 2, No. 11 ( 2018-11)
    Abstract: Sb 2 (S,Se) 3 has gathered a lot of attention recently as a promising alternative absorber material. However, the efficiencies of Sb 2 (S,Se) 3 devices are seriously restricted by the low open circuit voltage ( V oc ). In this work, Sb 2 (S,Se) 3 devices equipped with a TiO 2 /CdS double buffer layer are prepared by a hydro‐thermal method, which aims to overcome the V oc deficit. The obtained average V oc of the devices is 785 mV and the champion efficiency of 5.73% is also achieved with a highest V oc  = 792 mV, Jsc = 12.03 mA cm −2 , FF = 60.9%. The improvement of V oc is benefited from the reduced band gap offset after application of the double buffer layer. The non‐encapsulated device could keep an average power conversion efficiency of 5.69% after being stored in ambient air over a month. This indicates the great potential of a double buffer layer in new chalcogenide photovoltaic devices.
    Type of Medium: Online Resource
    ISSN: 2367-198X , 2367-198X
    URL: Issue
    Language: English
    Publisher: Wiley
    Publication Date: 2018
    detail.hit.zdb_id: 2882014-9
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  • 10
    Online Resource
    Online Resource
    Wiley ; 2021
    In:  Diversity and Distributions Vol. 27, No. 7 ( 2021-07), p. 1294-1307
    In: Diversity and Distributions, Wiley, Vol. 27, No. 7 ( 2021-07), p. 1294-1307
    Abstract: China is among the countries with highest mammal diversity in the world, but a considerable proportion of Chinese terrestrial mammal species is currently at risk of extinction. For effective conservation, it would be fundamental to answer the following questions: (1) Is extinction risk randomly distributed among families in Chinese terrestrial mammals? (2) If not, which families are more threatened than expected by chance? (3) What are the major ecological predictors of extinction vulnerability? (4) Does taxonomic difference exist in ecological correlates of extinction risk? (5) To what extent does anthropogenic disturbance contribute to variations in extinction risk? Location China. Methods We collected data on biological traits, environmental factors and anthropogenic disturbance for 453 Chinese terrestrial mammals. We used phylogenetically controlled regression models and model selection to identify predictors of extinction risk for the whole species set and for the three large taxonomic groups (Carnivora, Artiodactyla and Lagomorpha) separately. Results We found that extinction risk was not randomly distributed among families. Seven families (old world monkeys, gibbons, cats, civets and genets, musk deer, deer and bovids) contained significantly higher proportions of threatened species than expected by chance. Geographic range size was the only factor consistently supported in all the best models for the whole species set and for three large taxonomic groups. Although considered important in the global model for the whole species set, body weight was a poor predictor of extinction risk in taxon‐specific analyses. We also detected considerable differences in ecological correlates of extinction risk among Carnivora, Artiodactyla and Lagomorpha. After controlling for phylogeny, anthropogenic disturbance was not significantly correlated with extinction risk. Main conclusions For effective conservation, we should pay special attention to those highly threatened families and the species with limited range size. Our results also highlight the importance of performing taxon‐specific analyses for conservation practice.
    Type of Medium: Online Resource
    ISSN: 1366-9516 , 1472-4642
    URL: Issue
    Language: English
    Publisher: Wiley
    Publication Date: 2021
    detail.hit.zdb_id: 2020139-4
    detail.hit.zdb_id: 1443181-6
    SSG: 12
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