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排序方式: 共有119条查询结果,搜索用时 15 毫秒
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Environmental Fluid Mechanics - Wood is recognized as a key element of river ecosystem for a large number of positive feedbacks with biotic and abiotic components, both when it is present as large... 相似文献
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Lenka Okenicová Mária Žemberyová Simona Procházková 《Environmental Chemistry Letters》2016,14(1):67-77
Some trace metals are highly toxic for the environment. There is therefore a need for reliable methods for the determination of metals at trace levels. To this end, new sample pretreatment methods such as separation, preconcentration and speciation prior to the determination of metal ions have developed rapidly. Biosorption has become a major tool for solid-phase extraction methods. This review covers selected biosorbents such as algae, bacteria, filamentous fungi and yeasts, as new sorbents used in the solid-phase extraction of metal ions from various water sample matrices. A survey of the literature over 2004-2014 shows possible applications of selected new sorbents available for use in trace metal analysis in waters using solidphase extraction. We highlight the preconcentration of the toxic elements prior to their determination by atomic spectrometry. 相似文献
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Raspini Jéssica Prats Bonfante Mariele Canal Cúnico Franciele Rossetti Alarcon Orestes Estevam Campos Lucila M. S. 《Journal of Material Cycles and Waste Management》2022,24(5):1747-1759
Journal of Material Cycles and Waste Management - The transition from the current linear to a circular economy (CE) is a great challenge, especially in industries where the theme was barely... 相似文献
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Kaur Ishnoor Behl Tapan Sehgal Aayush Singh Sukhbir Sharma Neelam Subramanian Vetriselvan Fuloria Shivkanya Fuloria Neeraj Kumar Sekar Mahendran Dailah Hamed Ghaleb Alsubayiel Amal M. Bhatia Saurabh Al-Harrasi Ahmed Aleya Lotfi Bungau Simona 《Environmental science and pollution research international》2022,29(45):67685-67703
Environmental Science and Pollution Research - The 2019 outbreak of corona virus disease began from Wuhan (China), transforming into a leading pandemic, posing an immense threat to the global... 相似文献
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Mottola Filomena Santonastaso Marianna Iovine Concetta Frenzilli Giada Picchietti Simona Genualdo Viviana Rocco Lucia 《Environmental science and pollution research international》2022,29(41):62208-62218
Environmental Science and Pollution Research - The increased titanium dioxide nanoparticles (TiO2-NPs) spread and their interaction with organic and inorganic pollutants arouses concern for the... 相似文献
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Luca Tosti Roberto Danovaro Antonio Dell'Anno Ike Olivotto Stefano Bompadre Simona Clò 《Chemistry and Ecology》2013,29(4):335-345
At present, information on the reproductive physiology of Centroscymnus coelolepis, which is one of most important and widespread deep-sea shark species, is completely lacking. In this study, we investigated vitellogenesis, a key step in the reproduction biology of fishes. Specimens of C. coelolepis were collected at 2850 m depth in the Western Mediterranean Sea. The size of the collected sharks (range: 35.5–65.0 cm TL) was much lower than those typically reported for the Atlantic and Pacific Oceans. The marked distinctiveness of Mediterranean and Atlantic/Pacific populations was reflected by the achievement of sexual maturity at a smaller size in Mediterranean specimens. The examination of cytoplasmatic components of oocytes indicated that vitellogenin uptake in the ovary started when oocytes reached 14 mm in diameter. Only reproductive females displayed a significant relationship between plasmatic vitellogenin and gonadal development, suggesting that vitellogenesis in C. coelolepis is a discontinuous process. Oestradiol levels were tightly coupled with gonadal development, underlining the importance of this hormone in controlling vitellogenesis. All these findings suggest that vitellogenesis in this yolk-sac viviparous shark might occur with similar mechanisms of oviparous vertebrates. 相似文献
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Lucie Faldynová Sylwia Walczysková Dita Černá Monika Kudrejová Šárka Hilscherová Romana Kaniová Simona Širůčková 《黑龙江环境通报》2023,43(10):1320-1332