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Anthracene Removal and mineral N Dynamics in a Surfactant-Amended Soil

Pedosphere 2014年第6期24卷 783-790页

作者： m.R.CRDENAS-AQUINO G.SAlOmóN-HERNNDEZ .AGUIlAR-CHVEZ m.l.luna-guido R.mARSCH l.DENDOOVEN laboratory of Soil Ecology Department of Biotechnology and BioengineeringCinvestavMexico D.F.C.P.07360 (Mexico)

Surfactants, such as non-ionic Surfynol 485 （ethoxylated 2,4,7,9-tetramethyl-5-decyne-4,7-diol）, have been applied to accelerate removal of polycyclic aromatic hydrocarbons from soil. This study investigated the dissipation of anthracene, and carbon （C） and nitrogen （N） mineralization in soil amended with non-ionic Surfynol 485 at different rates. Soil samples of a Typic Fragiudept taken from Otumba, mexico were spiked with anthracene at a final concentration of 520 mg kg^-1 dry soil using acetone as solvent, amended with 0.0, 24.9, 49.8 or 124.4 g kg^-1 soil of the surfactant and incubated in the laboratory. The soil not amended with anthracene, acetone and the surfactant was used as a control. Dynamics of C and N and the concentration of anthracene were monitored for 56 d. After 56 d of incubation, 38% of the anthracene was removed from the unamended soil, and 47%, 55% and 66% of the anthracene were removed when 24.9, 49.8 and 124.4 g kg^-1 of the surfactant were applied, respectively. Application of acetone, anthracene or surfactant increased the emission of CO2, but decreased the mineral N compared to the unamended control. Applying the surfactant to the acetone or anthracene-amended soil reduced emission of CO2, but increased the mineral N at the lower application rates of the surfactant. It was found that the application of the non-ionic surfactant increased the bioavailability of anthracene and thus its removal from soil, increased C mineralization, but decreased N miaeralization. Consequently, the application of non-ionic surfactant could be easily used to accelerate the removal of pollutants from hydrocarbon-contaminated soils, but mineral N in the soil would decrease, which might inhibit plant growth.

关键词： acetone anthracene bioavailability C mineralization CO2 emission non-ionic surfactant Surfynol 485 polycyclic aromatic hydrocarbons

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methanogenesis and methanotrophy in Soil: A Review

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Pedosphere 2014年第3期24卷 291-307页

作者： N.SERRANO-SIlVA Y.SARRIA-GUZmN l.DENDOOVEN m.luna-guido laboratory of Soil Ecology ABACUS Cinvestav Instituto Politecnico Nacional 2508 C.P.07360 mexico d.f.(mexico)

Global warming, as a result of an increase in the mean temperature of the planet, might lead to catastrophic events for humanity. This temperature increase is mainly the result of an increase in the atmospheric greenhouse gases （GHG） concentration. Water vapor, carbon dioxide （CO2）, methane （CH4） and nitrous oxide （N20） are the most important GHG, and human activities, such as industry, livestock and agriculture, contribute to the production of these gases. methane, at an atmospheric concentration of 1.7 gmol tool-1 currently, is responsible for 16% of the global warming due to its relatively high global warming potential. Soils play an important role in the CH4 cycle as methanotrophy （oxidation of CH4） and methanogenesis （production of CH4） take place in them. Understanding methanogenesis and methanotrophy is essential to establish new agriculture techniques and industrial processes that contribute to a better balance of GHG. The current knowledge of methanogenesis and methanotrophy in soils, anaerobic CH4 oxidation and methanotrophy in extreme environments is also discussed.

关键词： anaerobic CH4 oxidation biological production global warming methanogenic archaea methanotrophic bacteria

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Dynamics of ^(14)C-labelled Glucose and NH_4^+ in a Regularly Flooded Extremely Alkaline Saline Soil

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Pedosphere 2015年第2期25卷 230-239页

作者： luc DENDOOVEN Eustacio RAmIREZ-FUENTES Rocio AlCANTARA-HERNDEZ Cesar VAlENZUElA-ENCINAS Katia Berenice SANCHEZ-lOPEZ marco luna-guido Victor manuel RUIZ-VAlDIVIEZO laboratory of Soil Ecology ABACUSCinvestavAvenida Instituto Politecnico Nacional 2508CP 07360Mexico Mexico

Flooding an extremely alkaline(pH 10.6) saline soil of the former lake Texcoco to reduce salinity will affect the soil carbon(C)and nitrogen(N) dynamics.A laboratory incubation experiment was done to investigate how decreasing soil salt content affected dynamics of C and N in an extremely alkaline saline *** soil with electrical conductivity(EC) of 59.2 dS m^(-1) was packed in columns,and then flooded with tap water,drained freely and conditioned aerobically at 50%water holding capacity for a *** process of flooding-drainage-conditioning was repeated eight *** original soil and the soil that had undergone one,two,four and eight flooding-drainage-conditioning cycles were amended with 1000 mg glucose-^(14)C kg^(-1) soil and 200 mg NH_4^+-N kg^(-1)soil,and then incubated for 28 *** CO_2 emissions,soil microbial biomass,and soil ammonium(NE_4^+),nitrite(NO_2^-) and nitrate(NO_3^-) were monitored in the aerobic incubation of 28 *** soil EC decreased from 59.2 to 1.0 dS m^(_1) after eight floodings,and soil pH decreased from 10.6 to *** the added ^(14)C-labelled glucose,only 8%was mineralized in the original soil,while 24%in the soil flooded eight times during the 28-d *** priming effect was on average 278 mg C kg^(-1) soil after the 28-d *** microbial biomass C(mean 66 mg C kg^(-1) soil) did not change with flooding times in the unamended soil,and increased 1.4 times in the glucose-NH_4^+-amended *** immobilization and NO_2^- concentration in the aerobically incubated soil decreased with increasing flooding times,while NO_3^- concentration *** was found that flooding the Texcoco soil decreased the EC sharply,increased mineralization of glucose,stimulated nitrification,and reduced immobilization of inorganic N,but did not affect soil microbial biomass C.

关键词： C mineralization CO2 emission microbial biomass C mineral N nitrification

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Deciphering the transcriptomic signature of synaptic activity

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Neural Regeneration Research 2022年第1期17卷 82-84页

作者： guido Hermey Institute for molecular and Cellular Cognition Center for Molecular Neurobiology HamburgUniversity Medical Center Hamburg-EppendorfHamburgGermany

Neurons undergo activity-dependent changes in their molecular composition and structure in order to regulate cellular processes such as dendritic growth,synapse elimination,spine maturation and synaptic *** synaptic plasticity plays an important role during a critical period in brain development and contributes to sensory adaptation and to learning and memory in the mature nervous *** dysregulation underlies a number of pathological processes in psychiatric and neurodegenerative disorders,such as addiction.

关键词： strength. signature elimination

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Greenhouse Gas Emissions and Growth of Wheat Cultivated in Soil Amended with Digestate from Biogas Production

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Pedosphere 2017年第2期27卷 318-327页

作者： liliana PAmPIllON-GONZAlEZ marco luna-guido Victor manuel RUIZ-VAlDIVIEZO Olivia FRANCO-HERNANDEZ Fabign FERNANDEZ-lUQUENO Oetavio PAREDES-lOPEZ Gerardo HERNANDEZ luc DENDOOVEN PhD Program on Science Technology and Society Cinvestav IPN 2508 Mexico DF 07360 (Mexico) laboratory of Soil Ecology Laboratorio de Matemdticas Aplicadas y Cdmputo de Alto Rendimiento Cinvestav-Edomex (ABACUS) Cinvestav IPN 2508 Mexico DF 07360 (Mexico) Department of Chemistry Unidad Profesional Interdisciplinaria de Biotecnologla-Instituto Politdcnico Nacional (UPIBI-IPN) Me- xico DF 07340 (Mexico) Sustainability of Natural Resources and Energy Program Cinvestav-Saltillo 1062 Coahuila 25900 (Mexico) Department of Biotechnology and Biochemistry Cinvestav Irapuato 36821 (Mexico)

Digestate, the product obtained after anaerobic digestion of organic waste for biogas production, is rich in plant nutrients and might be used to fertilize crops. Wheat （Triticum spp. l.） was fertilized with digestate, urea, or left unfertilized and cultivated in the greenhouse for 120 d. Emissions of greenhouse gasses （carbon dioxide （CO2）, methane （CH4）, and nitrous oxide （N20）） were monitored and plant growth characteristics were determined at harvest. The digestate was characterized for heavy metals, pathogens, and C and N mineralization potential in an aerobic incubation experiment. No Salmonella spp., Shigella spp., or viable eggs of helminths were detected in the digested pig slurry, but the number of faecal coliforms was as high as 3.6 ~ 104 colony-forming units （CFU） g-1 dry digestate. The concentrations of heavy metals did not surpass the upper limits established by US Environmental Protection Agency （EPA）. After 28 d, 17% of the organic C （436 g kg-1 dry digestate） and 8% of the organic N （6.92 g kg-1 dry digestate） were mineralized. Emissions of CO2 and CH4 were not significantly affected by fertilization in the wheat-cultivated soil, but digestate significantly increased the cumulative N20 emission by 5 times compared to the urea-amended soil and 63 times compared to the uncultivated unfertilized soil. It could be concluded that digestate was nutrient rich and low in heavy metals and pathogens, and did not affect emissions of CH4 and CO2 when applied to a soil cultivated with wheat, but increased emission of N20. Key Words： biodigester, C and N mineralization potential, faecal coliform, heavy metal, pathogen, pig slurry

关键词： biodigester C and N mineralization potential faecal coliform heavy metal pathogen pig slurry

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lectures on Wonderful Varieties

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Acta mathematica Sinica,English Series 2018年第3期34卷 417-438页

作者： guido PEZZINI Dipartimento di matematica "guido Castelnuovo" "Sapienza" Università di Roma

These notes are an introduction to wonderful varieties. We discuss some general results on their geometry, their role in the theory of spherical varieties, several aspects of the combinatorics arising from these varie... 详细信息

关键词： Wonderful varieties spherical varieties reductive groups

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Converging links between adult-onset neurodegenerative Alzheimer’s disease and early life neurodegenerative neuronal ceroid lipofuscinosis?

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Neural Regeneration Research 2023年第7期18卷 1463-1471页

作者： marcel Klein guido Hermey Institute for molecular and Cellular Cognition Center for Molecular Neurobiology HamburgUniversity Medical Center Hamburg-EppendorfHamburgGermany

Evidence from genetics and from analyzing cellular and animal models have converged to suggest links between neurodegenerative disorders of early and late ***,we summarize emerging links between the most common late life neurodegenerative disease,Alzheimer’s disease,and the most common early life neurodegenerative diseases,neuronal ceroid *** studies reported an overlap of clinically diagnosed Alzheimer’s disease and mutations in genes known to cause neuronal ceroid *** data strongly suggest dysfunction of intracellular trafficking mechanisms and the autophagy-endolysosome system in both types of neurodegenerative *** suggests shared cytopathological processes underlying these different types of neurodegenerative diseases.A better understanding of the common mechanisms underlying the different diseases is important as this might lead to the identification of novel targets for therapeutic concepts,the transfer of therapeutic strategies from one disease to the other and therapeutic approaches tailored to patients with specific ***,we review dysfunctions of the endolysosomal autophagy pathway in Alzheimer’s disease and neuronal ceroid lipofuscinoses and summarize emerging etiologic and genetic overlaps.

关键词： Alzheimer’s disease autophagy Batten disease ClN3 disease dementia endosome lysosome neurodegeneration neuronal ceroid lipofuscinosis presenilin

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1991-2020 climate normal in the European Alps:focus on high-elevation environments

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Journal of mountain Science 2023年第8期20卷 2149-2163页

作者： NIGREllI guido CHIARlE marta Istituto di Ricerca per la Protezione Idrogeologica Consiglio Nazionale delle RicercheTorino 10135Italy

Alps are an important geographical area of the European continent and,in this area,temperature increase is most ***,the 1991-2020 climate normal in the Alps has still not been thoroughly *** to fill this gap with a focus on high-elevation environments,minimum and maximum daily air temperature acquired by 23 automatic weather station were *** results show that the mean annual values of minimum and maximum temperature for the 1991-2020 climate normal in the Alps are-2.4℃ and 4.4℃,respectively,with a warming rate of 0.5℃/10 *** mean annual temperature comparison between 1961-1990 and 1971-2000,1961-1990 and 1981-2010,1961-1990 and 1991-2020 climate normal show an increase of 0.3℃,0.5℃ and 0.9℃,*** results also confirm that seasonal and annual temperatures are rising through the whole Alpine arc,mainly in summer and *** work highlights that annual minimum and maximum temperature do not seem to be affected by a positive elevation-dependent ***,a positive elevation-dependent warming in the maximum values of the annual minimum temperature was *** anthropogenic emissions maintain the trend of the last decades,the expected mean annual temperature of the 2001-2030 climate normal is-0.2℃,with an increase of 0.5℃ if compared to the 1991-2020 climate normal and with an increase of 1.5℃ if compared to the 1961-1990 climate *** study highlights the warming rate that is now present in the European Alps,provides indications on the warming rate that will occur in the coming years and highlights the importance of carrying out investigations that consider not only the last 30-year climate normal,but also the most recent 30-year climate normal by comparing them with each other.

关键词： Air temperature trend Climate normal Climate change High mountain climate Alps

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Evolution of temperature indices in the periglacial environment of the European Alps in the period 1990-2019

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Journal of mountain Science 2021年第11期18卷 2842-2853页

作者： NIGREllI guido CHIARlE marta National Research Council Research Institute for Geo-hydrological ProtectionStrada delle Cacce73–TorinoItaly

Air temperature in the European Alps shows warming over recent decades at an average rate of 0.3℃/10 years,therebyoutpacing the global warming rate of 0.2℃/10 *** periglacial environment of the Alps is particularly important for several aspects(*** production,tourism,natural hazards,indicator of global warming).However,there is a lack of specific and updated studies relating to temperature change in this *** order to fill this gap,the recent temperature trends in the periglacial environment of the Alps were ***/maximum/minimum daily air temperatures recorded by 14 land-based meteorological stations were used,and the temperature indices for the period 1990-2019 were *** periglacial environment of the Alps showed a warming rate of 0.4℃/10 years,0.6℃/10 years and 0.8℃/10 years for the mean/maximum/minimum temperatures,*** warming rates are higher than that observed for the entire Alpine *** 2050 many glaciers of the Alps below 3000 m altitude are expected to be extinct,and all the areas previously occupied by glaciers will become *** order to manage and adapt to these changes,more in-depth climate analyses are *** is necessary for all the mountainous areas of the world,which are undergoing similar changes.

关键词： mountain climate Cryosphere Climate change Extreme temperature Air temperature trend

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Analysis on parallel implementations of fixed-complexity sphere decoder

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Science China(Information Sciences) 2013年第4期56卷 155-165页

作者： WU Bin mASERA guido VlSI lab Dipartimento di ElettronicaPolitecnico di TorinoTorino 10129Italy

Sphere decoders are widely investigated for the implementation of multiple-input multiple-output(mImO) *** a large number of sphere decoding algorithms,the fixed-complexity sphere decoder(FSD) exhibits remarkable advantages in terms of constant throughput and high flexibility of parallel *** this paper,we present a four-nodes-per-cycle parallel FSD architecture with balanced performance and hardware complexity,and several examples of VlSI implementation for different types of modulation and both real and complex signal *** aspects and architecture details are analyzed in order to present a hardware-level perspective of the FSD *** a variety of performance-complexity trade-offs are *** implementation results show that the proposed parallel FSD architecture is highly efficient and flexible,especially in the complex signal model.

关键词： mImO detection fixed-complexity sphere decoder parallel architecture VlSI implementation

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