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71.
Wagner M. Teles Nivaldo L. Speziali Luiz Fernando C. de Oliveira 《Inorganica chimica acta》2006,359(10):3384-3388
The synthesis, thermal behavior, spectroscopic characterization and crystal and molecular structure of a Zn(II) complex containing the pseudo-oxocarbon Croconate Violet (CV2−) dianion, namely K2[Zn(CV)2(H2O)2] · 2H2O are reported. Thermal analysis has shown that the complex structure presents coordination and lattice water molecules. According to vibrational spectroscopy the Croconate Violet dianion is coordinated to Zn(II) center through the vicinal oxygen atoms in a chelating fashion with no involvement of CN moieties. The complex structure has been confirmed by single crystal X-ray diffraction analysis. The dianionic units [Zn(CV)2(H2O)2]2− adopt an slight distorted octahedral geometry in which the metallic center is surrounded by six oxygen atoms. These discrete dianionic units are connected through intermolecular hydrogen bonding giving rise to a supramolecular array extended along the crystallographic a axis. 相似文献
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Chromium ions phytoaccumulation by three floating aquatic macrophytes from a nutrient medium 总被引:1,自引:0,他引:1
Fernando Rodolfo Espinoza-Quiñones Edson Antonio da Silva Márcia de Almeida Rizzutto Soraya Moreno Palácio Aparecido Nivaldo Módenes Nayara Szymanski Neiva Martin Alexander Dimitrov Kroumov 《World journal of microbiology & biotechnology》2008,24(12):3063-3070
In the present work, the trivalent and hexavalent chromium phytoaccumulation by three living free floating aquatic macrophytes
Salvinia auriculata, Pistia stratiotes, and Eicchornia crassipes was investigated in greenhouse. These plants were grown in hydroponic solutions supplied with non-toxic Cr3+ and Cr6+ chromium concentrations, performing six collections of nutrient media and plants in time from a batch system. The total chromium
concentrations into Cr-doped hydroponic media and dry roots and aerial parts were assayed, by using the Synchrotron radiation
X-ray fluorescence technique. The aquatic plant-based chromium removal data were described by using a nonstructural kinetic
model, obtaining different bioaccumulation rate, ranging from 0.015 to 0.837 l mg−1 d−1. The Cr3+ removal efficiency was about 90%, 50%, and 90% for the E. crassipes, P. stratiotes, and S. auriculata, respectively; while it was rather different for Cr6+ one, with values about 50%, 70%, and 90% for the E. crassipes, P. stratiotes, and S. auriculata. 相似文献
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Peroni LA Reis JR Coletta-Filho HD de Souza AA Machado MA Stach-Machado DR 《Journal of microbiological methods》2008,75(2):302-307
Xylella fastidiosa causes significant losses in many economically important crops. An efficient pathogen detection system is critical for epidemiology studies, particularly when large sample size is involved. In this study we report the development of immunomolecular assays like Immmunocapture-PCR and Immuno-PCR for direct detection of X. fastidiosa without DNA isolation. Whereas the reactivity of ELISA and PCR ranged from 10(6) to 10(4) bacterial cells, the IC-PCR sensitivity was up to 10(3) and the detection limit of I-PCR was up to 10(1) bacterial cells. These methods can use either plant sample extracts or cultivated media, and show no cross reaction for any other endophytic citrus-bacteria. Therefore, IC-PCR and I-PCR assays provide an alternative for quick and very sensitive methods to screening X. fastidiosa, with the advantage of not requiring any concentration or DNA purification steps while still allowing an accurate diagnosis of CVC. 相似文献
76.
Light‐emitting diode therapy in exercise‐trained mice
increases muscle performance,cytochrome c oxidase activity,ATP and cell proliferation
[J. Biophotonics 8, No. 9, 740–754 (2015)] 下载免费PDF全文
Cleber Ferraresi Nivaldo Antonio Parizotto Marcelo Victor Pires de Sousa Beatriz Kaippert Ying‐Ying Huang Tomoharu Koiso Vanderlei Salvador Bagnato Michael R. Hamblin 《Journal of biophotonics》2016,9(9):976-976
In the article by C. Ferraresi et al. (DOI: http://dx.doi.org/10.1002/jbio.201400087 ), published in J. Biophotonics 8 , 740–754 (2015), a statement regarding the approval of some data the authors used is incorrect. This erratum is published to rectify this. 相似文献
77.
This study examines the human use and management of Araucaria angustifolia ethnovarieties from Santa Catarina, Brazil, and contributes to what is known about the ethnobotany of Araucaria species. The available literature on varietal differences of A. angustifolia is somewhat divergent, and there are currently no ethnobotanical studies on the intraspecific variation and management of this species. The study examined local knowledge and sociocultural and economic values of A. angustifolia varieties to understand how the varieties are managed and how management practices are influencing the conservation of the species. Semi-structured interviews were conducted with 33 informants (identified using the snowball method) in the Painel and Urubici municipalities. Participants identified 12 local varieties, four of which were cited by more than one informant. Characteristic differences include size, color and flavor of the nut-like seeds (pinhão), and most importantly, season of maturation of the cone. The “Caiová” variety was preferred for its bigger, firmer, and sweeter seeds that are considered easier to peel and last longer in storage. Even though there is some interest in developing management practices that favor some varieties in order to guarantee year-round production, seedlings are commonly removed. This management practice is most likely a response to current regulations that prohibit cutting down adult trees. The results of this study have important implications for the relationship between the knowledge of A. angustifolia practices and the current legal framework that protects this species. A more detailed understanding of the relevant ethnobotanical knowledge is required in order to establish the best practices for sustainable use of A. angustifolia and its varietal diversity and to support the communities that depend on this species as a resource. 相似文献
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Fabiano Bisinella Scheufele Camila Larissa Hinterholz Maya M. Zaharieva Hristo M. Najdenski Aparecido Nivaldo Mdenes Daniela Estelita Goes Trigueros Carlos Eduardo Borba Fernando Rodolfo Espinoza‐Quiones Alexander Dimitrov Kroumov 《Engineering in Life Science》2019,19(12):844-859
Modeling as a tool solves extremely difficult tasks in life sciences. Recently, schemes of culturing of microalgae have received special attention because of its unique features and possible uses in many industrial applications for renewable energy production and high value products isolation. The goal of this review is to present the use of system analysis theory applied to microalgae culturing modeling and process development. The review mainly focuses on the modeling of the key steps of autotrophic growth under the integral biorefinery concept of the microalgae biomass. The system approach follows systematically a procedure showing the difficulties by modeling of sub‐systems. The development of microalgae kinetics and computational fluid dynamics (CFD) studies were analyzed in details as sub‐systems in advanced design of photobioreactor (PBR). This review logically follows the trends of the modeling procedure and clarifies how this approach may save time and money during the research efforts. The result of this work is a successful development of a complex PBR mathematical analysis in the frame of the integral biorefinery concept. 相似文献
80.
Stem molecular signature of adipose-derived stromal cells 总被引:4,自引:0,他引:4
Peroni D Scambi I Pasini A Lisi V Bifari F Krampera M Rigotti G Sbarbati A Galiè M 《Experimental cell research》2008,314(3):603-615