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11.
Pleurotus ostreatus spent mushroom substrate for the degradation of polycyclic aromatic hydrocarbons: the case study of a pilot dynamic biopile for the decontamination of a historically contaminated soil 下载免费PDF全文
12.
Stephen Buckman Mara Latorre M. Martin Bosman Neveen Nawawy Bomin Koh 《Papers in Regional Science》2019,98(2):679-699
As cities are compelled to compete for new sources of investment and revenue, arts-based economic development strategies have become the norm. The purpose of this paper is to revisit and reevaluate some of the conventional claims about the arts as an important economic development strategy by exploring a case study called “The Space at 2106 Main” in a rapidly gentrifying neighbourhood called West Tampa. The results of this study suggest that the arts are indeed assuming a greater role in economic policy under the auspices of West Tampa community redevelopment areas (CRA) and the direct actions of various arts related entrepreneurs. The results however, point to a mixed picture that raises difficult questions about the medium to long-term effects of this urban redevelopment strategy, especially on the poor and mostly minority residents of West Tampa. 相似文献
13.
Mara Soares da SilvaFranklin L. Nobrega Ana Aguiar-RicardoEurico J. Cabrita Teresa Casimiro 《The Journal of Supercritical Fluids》2011,58(1):150-157
This work reports the development of a novel class of affinity co-polymeric materials using supercritical fluid technology. Polymeric materials with molecular recognition to flufenamic acid, were first synthesized in supercritical carbon dioxide (scCO2) using the drug as template. Molecularly imprinted co-polymers of methacrylic acid (MAA) or N-isopropyl acrylamide (NIPAAm) crosslinked with ethylene glycol dimethacrylate (EGDMA) were synthesized using different crosslinking degrees and template:monomer ratios, at 65 °C and 21 MPa. High-pressure NMR experiments confirmed that the nature of the interactions between the drug and the functional monomers during the polymerization step are mainly hydrogen bonds. scCO2-assisted impregnation revealed that the imprinted matrices were able to uptake higher amounts of flufenamic acid. This effect was particularly evidenced in the more crosslinked matrices, with P(MAA-EGDMA) imprinted copolymers binding up to 101.5 mg drug/g polymer against only 50.5 mg/g in the non-imprinted copolymer. In vitro drug delivery experiments showed that imprinted co-polymers release the drug in a more sustained way than the corresponding non-imprinted matrices. Overall it was shown that supercritical fluid technology is a viable approach for the development of self-assembly molecular recognition polymers with potential application in controlled drug delivery systems. 相似文献
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15.
Brendgen Mara; Lamarche Véronique; Wanner Brigitte; Vitaro Frank 《Canadian Metallurgical Quarterly》2010,46(2):491
The present study examined to what extent different types of friendship experiences (i.e., friendlessness, having depressed friends, and having nondepressed friends) are associated with early adolescents’ longitudinal trajectories of depressed mood. On the basis of a sample of 201 youths (108 girls, 93 boys), we identified 3 distinct longitudinal profiles of depressed mood from Grade 5 (age 11) through Grade 7 (age 13): one group with consistently low levels of depressed mood, another group showing a sharp increase in depressed mood from late childhood through early adolescence, and a 3rd group with consistently high levels of depressed mood from late childhood through early adolescence. Subsequent analyses revealed that, compared to friendless youths, youths with nondepressed friends showed less elevated trajectories of depressed mood, whereas youths with depressed friends showed more elevated trajectories. The theoretical and practical implications of these findings are discussed. (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
16.
Türker Tanergü?lü Hakan Mara? Cevriye Gencer Haluk Aygüne? 《Information Systems Frontiers》2012,14(2):423-444
In this study, a decision support system (DSS) based on the interactive use of location models and geographical information
systems (GIS) was developed to determine the optimal positions for air defence weapons and radars. In the location model,
the fire units are considered as the facilities to be located and the possible approach routes of air vehicles are treated
as demand points. Considering the probability that fire by the units will miss the targets, the objective of the problem is
to determine the positions that provide coverage of the approach routes of the maximum number of weapons while considering
the military principles regarding the tactical use and deployment of units. In comparison with the conventional method, the
proposed methodology presents a more reliable, faster, and more efficient solution. On the other hand, owing to the DSS, a
battery commander who is responsible for air defence becomes capable of determining the optimal weapon and radar positions,
among the alternative ones he has identified, that cover the possible approach routes maximally. Additionally, he attains
the capability of making such decisions in a very short time without going to the field over which he will perform the defence
and hence without being subject to enemy threats. In the decision support system, the digital elevation model is analysed
using Map Objects 2.0, the mathematical model is solved using LINGO 4.0 optimization software, and the user interface and
data transfer are supported by Visual Basic 6.0. 相似文献
17.
Moacir Fernandes Ferreira Júnior Elaine Angélica Ribeiro Mundim Guimes Rodrigues Filho Carla da Silva Meireles Daniel Alves Cerqueira Rosana Maria Nascimento de Assunção Marcos Marcolin Mara Zeni 《Polymer Bulletin》2011,66(3):377-389
Cellulose, obtained both from sugarcane bagasse and mango seeds, was used for synthesizing cellulose acetate in order to produce
asymmetric membranes. These were compared to membranes of commercial cellulose acetate (Rhodia). All produced membranes were
asymmetric, characterized by the presence of a dense skin and a porous support. Differences regarding the morphology of the
surfaces as well as of the porous support can be noticed. Scanning Electron Microscopy (SEM) showed that the morphology of
the superficial layer, responsible for transport, depends on the different lignin content of the starting material and also
on the viscosity average molecular weight of the cellulose acetates produced from sugarcane bagasse, mango seed, and Rhodia’s
commercial cellulose acetate. 相似文献
18.
D.D. Mara 《Water research》1973,7(8):1243-1245
The equipment required to provide a small laboratory in up-country areas in developing countries with facilities for five coliform examinations (at 37°C) per day by the five tube 10 ml MPN method is described. The capital cost (excluding installation, buildings etc.) is approximately £120 sterling (U.S. $290) and the running cost per test approximately 3p (U.S. 7 cents). 相似文献
19.
Weingart Laurie R.; Brett Jeanne M.; Olekalns Mara; Smith Philip L. 《Canadian Metallurgical Quarterly》2007,93(6):994
Negotiators' social motives (cooperative vs. individualistic) influence their strategic behaviors. In this study, the authors used multilevel modeling and analyses of strategy sequences to test hypotheses regarding how negotiators' social motives and the composition of the group influence group members' negotiation strategies. Four-person groups negotiating a 5-issue mixed-motive decision-making task were videotaped, and the tapes were transcribed and coded. Group composition included 2 homogeneous conditions (all cooperators and all individualists) and 3 heterogeneous conditions (3 cooperators and 1 individualist, 2 cooperators and 2 individualists, 1 cooperator and 3 individualists). Results showed that cooperative negotiators adjusted their use of integrative and distributive strategies in response to the social-motive composition of the group, but individualistic negotiators did not. Results from analyses of strategy sequences showed that cooperators responded more systematically to others' behaviors than did individualists. They also redirected the negotiation depending on group composition. (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
20.