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101.
Rita Berto Maria Rosa Baroni Alessandra Zainaghi Sandro Bettella 《Journal of environmental psychology》2010,30(4):494-500
According to attention restoration theory attentional fatigue can be renewed in environments where fascinating stimuli are present as they evoke effortless attention and allow directed attention to rest and be restored. The present study hypothesizes that performing an attention-orienting task in a state of attentional fatigue costs less in a high fascination than in a low fascination condition. In the former attentional shifts are expected to be facilitated because one can function in the involuntary mode. The high fascination condition is also expected to facilitate attention in the coding process and therefore to affect the likelihood of stimulus material to be remembered. To this end 31 subjects were mentally fatigued by performing a sustained attention test. Then they performed an ad hoc attention-orienting task inspired by Posner's paradigm and applied to 40 photographs of environments already assessed for their fascination value. Finally they performed an incidental memory task. As expected, only in the high fascination condition did participants show a significant benefit (reaction time reduction) in shifting attention between trials. The role of fascination on recall is less clear since it interacts with the naturalness of the scene. 相似文献
102.
G. Cappai G. De Gioannis M. Friargiu E. Massi A. Muntoni A. Polettini R. Pomi D. Spiga 《Waste management (New York, N.Y.)》2014,34(8):1510-1519
Batch dark fermentation experiments were performed on food waste and mixtures of food waste and wastewater activated sludge to evaluate the influence of pH on biological H2 production and compare the process performance with and without inoculum addition. The effect of a preliminary thermal shock treatment of the inoculum was also investigated as a means to harvest the hydrogenogenic biomass. The best performance in terms of both H2 generation potential and process kinetics was observed at pH = 6.5 under all experimental conditions (no inoculum, and untreated or thermally treated inoculum added). H2 production from food waste was found to be feasible even without inoculum addition, although thermal pre-treatment of the inoculum notably increased the maximum production and reduced the lag phase duration. The analysis of the fermentation products indicated that the biological hydrogen production could be mainly ascribed to a mixed acetate/butyrate-type fermentation. However, the presence of additional metabolites in the digestate, including propionate and ethanol, also indicated that other metabolic pathways were active during the process, reducing substrate conversion into hydrogen. The plateau in H2 generation was found to mirror the condition at which soluble carbohydrates were depleted. Beyond this condition, homoacetogenesis probably started to play a role in the degradation process. 相似文献
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106.
D’Anna Alessandra Arrigo Rossella Frache Alberto 《Journal of Polymers and the Environment》2022,30(1):102-113
Journal of Polymers and the Environment - The effect of process parameters on the final properties of a poly-lactic acid (PLA) and polyhydroxybutyrate (PHB) polymer blend filled with nanoclays was... 相似文献
107.
Monika Schlegel Alessandra Baumer Mariluce Riegel Ute Wiedemann Albert Schinzel 《黑龙江环境通报》2002,22(5):418-421
An Erratum has been published for this article in Prenatal Diagnosis 22(11) 2002: 1056. We report a case of maternal isodisomy 10 combined with mosaic partial trisomy 10 (p12.31-q11.1). Chromosome examinations from a CVS sample showed a karyotype 47,XY,+mar/46,XY. The additional marker chromosome which was present in 6/25 interphase nuclei was shown by fluorescence in situ hybridization (FISH) to have been derived from a pericentromeric segment of chromosome 10. DNA analysis was performed from umbilical cord blood from the fetus after termination of the pregnancy at 18 weeks. The results showed that the two structurally normal chromosomes 10 were both of maternal origin, whereas the marker chromosome derived from the father. Autopsy of the fetus revealed hypoplasia of heart, liver, kidneys and suprarenal glands, but, apart from a right bifid ureter, no structural organ abnormalities. This fetus represents the second reported instance of a maternal uniparental disomy (UPD) 10. Copyright © 2002 John Wiley & Sons, Ltd. 相似文献
108.
Zemiani Adriana Boldarini Maria Theresa Bettin Anami Marcelo Hidemassa de Oliveira Edson Fontes da Silva Alessandra Furtado 《Environmental science and pollution research international》2021,28(31):42107-42120
Environmental Science and Pollution Research - The tolerance of Mentha crispa L. (garden mint) cultivated in cadmium-contaminated oxisol for 120 days was analyzed using plant growth variables such... 相似文献
109.
Paris Elaine Cristina Malafatti João Otávio Donizette Sciena Camila Rodrigues Junior Luiz Ferreira Neves Zenatti Alessandra Escote Márcia Tsuyama Moreira Ailton José Freschi Gian Paulo Giovanni 《Environmental science and pollution research international》2021,28(19):23731-23741
Environmental Science and Pollution Research - Nanotechnology has been studied on environmental remediation processes to foster greater photocatalysts efficiency and reuse in wastewater. This study... 相似文献
110.
G. De Gioannis A. Muntoni A. Polettini R. Pomi 《Waste management (New York, N.Y.)》2013,33(6):1345-1361
Hydrogen is believed to play a potentially key role in the implementation of sustainable energy production, particularly when it is produced from renewable sources and low energy-demanding processes. In the present paper an attempt was made at critically reviewing more than 80 recent publications, in order to harmonize and compare the available results from different studies on hydrogen production from FW and OFMSW through dark fermentation, and derive reliable information about process yield and stability in view of building related predictive models. The review was focused on the effect of factors, recognized as potentially affecting process evolution (including type of substrate and co-substrate and relative ratio, type of inoculum, food/microorganisms [F/M] ratio, applied pre-treatment, reactor configuration, temperature and pH), on the fermentation yield and kinetics. Statistical analysis of literature data from batch experiments was also conducted, showing that the variables affecting the H2 production yield were ranked in the order: type of co-substrate, type of pre-treatment, operating pH, control of initial pH and fermentation temperature. However, due to the dispersion of data observed in some instances, the ambiguity about the presence of additional hidden variables cannot be resolved. The results from the analysis thus suggest that, for reliable predictive models of fermentative hydrogen production to be derived, a high level of consistency between data is strictly required, claiming for more systematic and comprehensive studies on the subject. 相似文献