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Deadwood affects the soil organic matter fractions and enzyme activity of soils in altitude gradient of temperate forests

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Forest Ecosystems 2023年第3期10卷 316-327页

作者： Ewa Błońska Wojciech Prazuch Jarosław Lasota Department of Ecology and Silviculture Faculty of ForestryUniversity of Agriculture in Krakow29 Listopada 46 Str.31-425KrakowPoland

The main objective of our study has been to determine the role of deadwood in the shaping of the amount of soil organic matter fractions in mountain forest *** this purpose,a climosequence approach comprising north(N)and south(S)exposure along the altitudinal gradient(600,800,1000 and 1200 m a.s.l.)was set *** comparing the properties of decomposing deadwood and those of the soils located directly beneath the decaying wood we drew conclusions about the role of deadwood in the shaping of soil organic matter fractions and soil carbon storage in different climate *** basic properties,enzymatic activity and fractions of soil organic matter(SOM)were determined in deadwood and affected directly by the components released from decaying *** decomposed deadwood impacts soil organic matter stabilization more strongly than the less decayed deadwood and the light fraction of SOM is more sensitive to deadwood effects than the heavy fraction regardless of the location in the altitude *** in SOM mineral-associated fraction C content is more pronounced in soils under the influence of deadwood located in lower locations of warmer *** released from decaying wood stimulate the enzymatic activity of soils that are within the range of deadwood influence.

关键词： Enzyme activity Forest soils Heavy fraction Light fraction Soil organic matter

Polarity,intramolecular charge transfer,and hydrogen bond comediated solvent effects on the optical properties of graphene quantum dots

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Nano Research 2023年第1期16卷 45-52页

作者： Yalei Hu Christof Neumann lena Scholtz Andrey Turchanin Ute Resch-Genger Siegfried Eigler Institute of Chemistry and Biochemistry Freie Universität BerlinTakustraße 314195 BerlinGermany Institute of Physical Chemistry and Abbe Center of Photonics Friedrich Schiller University JenaLessingstraße 1007743 JenaGermany Federal Institute for Materials Research and Testing(BAM) Division BiophotonicsRichard Willstätter Straße 1112489 BerlinGermany

Graphene quantum dots(GQDs)have attracted increasing attention due to their favorable optical properties and have been widely used,e.g.,in the biomedical ***,the properties related to the chemical structure of GQDs,resulting in solventdependent optical properties,still remain ***,we present the synthesis of long-wavelength emitting GQDs with a size of about 3.6 nm via a solvothermal method using oxo-functionalized graphene(oxo-G)and p-phenylenediamine as precursors and their structural and surface chemical analysis by transmission electron and atomic force microscopy(TEM;AFM)as well as Fourier-transform infrared,Raman,and X-ray photoelectron spectroscopy(FTIR;Raman;XPS).Subsequently,the influence of solvent polarity and proticity on the optical properties of the as-prepared GQDs bearing–OH,–NH_(2),–COOH and pyridine surface groups was *** on the results of the absorption and fluorescence(FL)studies,a possible luminescence mechanism is *** observed solvent-induced changes in the spectral position of the FL maximum,FL quantum yield,and FL decay kinetics in protic and aprotic solvents of low and high polarity are ascribed to a combination of polarity effects,intramolecular charge transfer(ICT)processes,and hydrogen ***,the potential of GQDs for the optical sensing of trace amount of water was *** results of our systematic spectroscopic study will promote the rational design of GQDs and shed more light on the FL mechanism of carbon-based fluorescent nanomaterials.

关键词： graphene quantum dots(GQDs) polarity intramolecular charge transfer(ICT) hydrogen bond optical properties

Comparison of the prognostic value of frailty assessment tools in patients aged≥65 years hospitalized in a cardiac care unit with acute coronary syndrome

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Journal of Geriatric Cardiology 2022年第5期19卷 343-353页

作者： Wojciech Nowak Ilona Kowalik Małgorzata Kuzin Agnieszka Krauze Anna Mierzyńska Ewa Sadowy Kamil Marcinkiewicz Janina Stępińska Department of Intensive Cardiac Therapy National Institute of CardiologyWarsawPoland Clinical Research Support Center National Institute of CardiologyWarsawPoland Department of Coronary Artery Disease and Cardiac Rehabilitation National Institute of CardiologyWarsawPoland

BACKGROUND Frailty is associated with adverse events in elderly patients with acute coronary syndrome(ACS).Our aim was to compare the prognostic value of four frailty scales in patients aged≥65 years hospitalized with ACS in a cardiac care unit(CCU).METHODS Patients aged≥65 years with ACS were *** was assessed using the Fried frailty scale(reference standard),the Edmonton Frail Scale(EFS),the FRAIL scale,and the Clinical frailty scale(CFS).The primary end point was all-cause mortality and the secondary end point was unscheduled *** One hundred and seventy four patients aged≥65 years with ACS were *** median follow-up was 637.5 *** was identified in 41.4%,40.2%,39.1%and 36.3%patients by the Fried frailty scale,EFS,FRAIL scale and CFS,*** agreement coefficients were 0.88,0.86,and 0.79 for the FRAIL scale,EFS and CFS,*** the Cox regres-sion model,frailty was associated with all-cause mortality regardless of the scale used(univariate:hazard ratio[HR]95%CI=10.5,2.4-46.8 Fried frailty scale;12.0,2.7-53.4 FRAIL scale;7.1,2.0-25.2 EFS;8.3,2.4-29.6 ***:HR=5.1,1.1-23.8 Fried frailty scale;5.7,1.2-26.8 FRAIL scale;3.7,1.0-14.0 EFS;4.2,1.1-15.9 CFS).The FRAIL scale had the highest *** the uni-variate analysis,frailty was associated with unscheduled rehospitalization(HR=3.2,1.7-6.0 Fried frailty scale;3.4,1.8-6.3 FRAIL scale;3.5,1.8-6.6 EFS;3.1,1.7-5.8 CFS).In the multivariate analysis,only the EFS independently predicted unscheduled rehospit-alization(HR=2.2,1.1-4.63).CONCLUSIONS Frailty assessed by the Fried frailty scale,FRAIL scale,EFS and CFS is associated with all-cause mortality and unscheduled rehospitalization in elderly patients hospitalized in a CCU with *** adjusted HR of the FRAIL scale for all-cause mortality was the highest among the scales compared,whereas the EFS was an independent predictor of unscheduled *** data should be taken into consider

关键词： patients mortality coronary

Spatial Resilience to Wildfires through the Optimal Deployment of Firefighting Resources:Impact of Topography on Initial Attack Effectiveness

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International Journal of Disaster Risk Science 2023年第1期14卷 98-112页

作者： Stavros Sakellariou Athanassios Sfougaris olga Christopoulou Stergios Tampekis Department of Agriculture Crop Production and Rural Environment University of Thessaly38446VolosGreece Department of Planning and Regional Development University of Thessaly38334VolosGreece Department of Forestry and Natural Environment Management Agricultural University of Athens36100KarpenisiGreece

Strongly affected by the escalating impacts of climate change,wildfires have been increasing in frequency and severity around the *** primary aim of this study was the development of specific territorial measures—estimating the optimal locations of firefighting resources—to enhance the spatial resilience to wildfires in the fire-prone region of Chalkidiki Prefecture in northern *** measures focus on the resistance to wildfires and the adaptation of strategies to wildfire management,based on the estimation of burn probability,including the effect of anthropogenic factors on fire *** proposed location schemes of firefighting resources such as vehicles consider both the susceptibility to fire and the influence of the topography on travel simulation,highlighting the impact of road slope on the initial firefighting *** spatial scheme,as well as the number of required firefighting forces is totally differentiated due to slope *** we ignore the topography effect,a minimum number of fire vehicles is required to achieve the maximization of coverage(99.2%of the entire study area)giving priority to the most susceptible regions(that is,employing 18 of 24 available fire vehicles).But when we adopt more realistic conditions that integrate the slope effect with travel time,the model finds an optimal solution that requires more resources(that is,employing all 24 available fire vehicles)to maximize the coverage of the most vulnerable regions within 27 *** process achieves 80%of total *** proposed methodology is characterized by a high degree of flexibility,and provides optimized solutions to decision makers,while considering key factors that greatly affect the effectiveness of the initial firefighting attack.

关键词： Greece Firefighting resources Simulation and spatial modeling Spatial optimization Spatial resilience Topography impact Wildfires

Dimension-dependent mechanical features of Au-nanocrystalline nanofilms

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Nano Research 2023年第12期16卷 13400-13408页

作者： Lijun Ma lena Du Shu Wang Qing Wang Shifeng Xue Hanxing Zhu Qian Liu Department of Engineering Mechanics College of Pipeline and Civil EngineeringChina University of Petroleum(East China)Qingdao 266580China CAS Center for Excellence in Nanoscience National Center for Nanoscience and Technology&University of Chinese Academy of SciencesBeijing 100190China Department of Physics Capital Normal UniversityBeijing 100048China School of Engineering Cardiff UniversityCardiff CF243AAUK MOE Key Laboratory of Weak-Light Nonlinear Photonics TEDA Applied Physics InstituteSchool of PhysicsNankai UniversityTianjin 300457China College of Mechanical and Architectural Engineering Taishan UniversityTai’an 271000China

For metal nanofilms composed of nanocrystals,the multiple deformation mechanisms will coexist and bring unique and complex elastic-plastic and fracture mechanical *** successfully fabricating large quantities of uniform doubly-clamped suspended gold(Au)nanobeams with different thicknesses and nanograin sizes,we obtain full-spectrum mechanical features with statistical significance by combining atomic force microscopy(AFM)nanoindentation experiments,nonlinear theoretical model,and numerical *** yield and breaking strengths of the Au nanobeams have a huge increase by nearly an order of magnitude compared with bulk Au and exhibit strong nonlinear effects,and the corresponding strong-yield ratio is up to 4,demonstrating extremely high strength reserve and vibration *** strong-yield ratio gradually decreases with decreasing thickness,identifying a conversion of the failure type from ductile to ***,the Hall–Petch relationship has been identified to be still valid at the nanoscale,and K in the equation reaches 4.8 Gpa·nm1/2,nearly twice of bulk nanocrystalline Au,which is ascribed to the coupling effect of nanocrystals and nanoscale thickness.

关键词： nanocrystalline Au nanobeams atomic force microscopy numerical simulations full-spectrum mechanical properties

Physiological and biochemical characteristic of Miscanthus×giganteus grown in heavy metal-oil sludge co-contaminated soil

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Journal of Environmental Sciences 2022年第5期34卷 114-125页

作者： Anna Muratova Yelena Lyubun Irina Sungurtseva olga Turkovskaya Asil Nurzhanova Institute of Biochemistry and Physiology of Plants and Microorganisms RAS Saratov 410015Russia Institute of Plant Biology and Biotechnology Almaty 050040Kazakhstan

The effect of oil sludge and zinc,present in soil both separately and as a mixture on the physiological and biochemical parameters of Miscanthus×giganteus plant was examined in a pot *** opposite effect of pollutants on the accumulation of plant biomass was established:in comparison with uncontaminated control the oil sludge increased,and Zn reduced the root and shoot *** sludge had an inhibitory effect on the plant photosynthetic apparatus,which intensified in the presence of *** specific antioxidant response of M.×giganteus to the presence of both pollutants was a marked increase in the activity of superoxide dismutase(mostly owing to oil sludge)and glutathione-S-transferase(mostly owing to zinc)in the *** participation of glutathione-S-transferase in the detoxification of both the organic and the inorganic pollutants was *** inhibited the activity of laccase-like oxidase,whereas oil sludge promoted laccase and ascorbate oxi-dase *** finding suggests that these enzymes play a part in the oxidative detox-ification of the organic *** both pollutants used jointly,Zn accumulation in the roots increased 6-fold,leading to increase in the efficiency of soil clean-up from the *** turn,Zn did not significantly affect the soil clean-up from oil *** study shows for the first time the effect of co-contamination of soil with oil sludge and Zn on the phys-iological and biochemical characteristics of the bioenergetic plant M.×*** data obtained are important for understanding the mechanisms of phytoremediation with this plant.

关键词： Miscanthus×giganteus Oil sludge Zinc Antioxidant enzymes Oxidative enzymes

BCD020 rituximab bioanalog compared to standard treatment in juvenile systemic lupus erythematosus: The data of 12 months casecontrol study

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World Journal of Clinical Pediatrics 2024年第1期13卷 52-61页

作者： Elvira Kalashnikova Eugenia Isupova Ekaterina Gaidar Lyubov Sorokina Maria Kaneva Vera Masalova Margarita Dubko Tatiana Kornishina Natalia Lubimova Ekaterina Kuchinskaya Irina Chikova Rinat Raupov olga Kalashnikova Mikhail Kostik Hospital Pediatry Department Saint-Petersburg State Pediatric Medical UniversitySaint-Petersburg 194100Russia Research Laboratory of Autoimmune and Autoinflammatory Diseases Almazov National Medical Research CentreSaint Petersburg 197341Russia Department of Rheumatology Turner National Medical Research Center forСhildren’s Orthopedics and Trauma SurgerySaint-Petetrsburg 197136Russia

BACKGROUND Systemic lupus erythematosus(SLE)is the most frequent and serious systemic connective tissue *** there is no clear guidance on its treatment in *** are a lot of negative effects of standard-of-care treatment(SOCT),including steroid ***(RTX)is the biological B-lymphocyte-depleting agent suggested as a basic therapy in pediatric *** To compare the benefits of RTX above *** The data from case histories of 79 children from the Saint-Petersburg State Pediatric Medical University from 2012 to 2022 years,were *** diagnosis of SLE was established with SLICC *** compared the outcomes of treatment of SLE in children treated with and without *** data,doses of glucocorticosteroids,disease activity measured with SElena-SLEDAI,RESULTS Patients,treated with RTX initially had a higher degree of disease activity with prevalence of central nervous system and kidney involvement,compared to patients with *** year later the disease characteristics became similar between groups with a more marked reduction of disease activity(SElena-SLEDAI activity index)in the children who received RTX[-19 points(17;23)since baseline]compared to children with SOCT[-10(5;15.5)points since baseline,P=0.001],the number of patients with active lupus nephritis,and daily *** RTX therapy,infectious diseases had three patients;one patient developed a *** RTX can be considered as the option in the treatment of severe forms of SLE,due to its ability to arrest disease activity compared to SOCT.

关键词： Systemic lupus erythematosus Children Rituximab Anti-B-cell therapy Glucocorticosteroids

CT影像组学模型在结直肠癌肝转移中的独立验证：预测肿瘤消融后局部进展

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国际医学放射学杂志 2024年第4期 500-501页

作者： D.J.van der Reijd C.Guerendel F.C.R.Staal M.P.Busard M.de Oliveira Taveira E.G.Klompenhouwer 刘晓彤

摘要目的对3种既往报道的基于CT预测结直肠癌肝转移（CRLM）病变热消融后局部肿瘤进展（LTP）的影像组学模型进行独立内部及外部验证。方法从2个机构收集接受

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On determining the weight of edges in map-representing graphs-applications of heuristic methods in planning escape routes

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Journal of Traffic and Transportation Engineering(English Edition) 2022年第6期9卷 1027-1043页

作者： Marta Borowska-Stefańska MichałKowalski Filip Turoboś Szymon Wiśniewski Institute of the Built Environment and Spatial Policy Faculty of Geographical SciencesUniversity of LodzŁódź90–137Poland Institute of Mathematics Lodz University of TechnologyŁódź90–924Poland

In the paper we discuss and compare two commonly used methods of finding the shortest paths in networks,namely Dijkstra’s and A**** compare their effectiveness in terms of traversing road network in circumstances that require swift decision making in the event of dynamically changing road conditions on the basis of studies conducted for evacuation *** build a proper model of such a network,a method of appropriate edge-weighting is introduced,based on empirical data collected by other ***,we use the basics of the theory of quasimetric spaces to introduce a heuristic to such graphs,which is easy to calculate *** heuristic we obtain is both admissible and consistent,which allows us to use it efficiently in A*search *** developed application can be used in studies into evacuation from hazardous *** this case,optimum calculative efficiency is achievable with a simultaneous reduction of calculation time(when compared to Dijkstra’s algorithm).Our application can be applied during the first stage,i.e.,prior to the occurrence of a disaster,since this is an appropriate time for preparation by planning,drilling,early warning,and designating the rescue services that are to participate in the following stages.

关键词： A*algorithm Dijkstra Heuristic methods Mathematical modelling Quasimetric spaces Planning escape routes