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Changes in the adult sex ratio of six duck species breeding populations over two decades

Avian Research 2024年第2期15卷 202-210页

作者： Monika Homolkova petr Musil Diego Pavon-Jordan Dorota Gajdosova Zuzana Musilova Sarka Neuzilova Jan Zouhar Department of Ecology Faculty of Environmental SciencesCzech University of Life Sciences PragueKamýcka 129CZ-16521Prague–SuchdolCzech Republic Department of Terrestrial Ecology Norwegian Institute for Nature Research(NINA)PO Box 5685 TorgardenTrondheimN-7485Norway Department of Econometrics Faculty of Informatics and StatisticsUniversity of Economicsnam.W.Churchilla 4CZ-13067Prague 3Czech Republic

Despite all efforts,long-term changes in the adult sex ratios of breeding duck populations are still unclear;this uncertainty is especially true for male-bias populations,which are often under the scrutiny of researchers lacking convenient results for the active protection of endangered *** with male-bias populations are usually strongly affected by a decline in population size that leads to a higher extinction *** this study,we examined our long-term data of the abundance of breeding populations in six duck species(Mallard Anas platyrhynchos,Gadwall Mareca strepera,Red-crested Pochard Netta rufina,Common Pochard Aythya ferina,Tufted Duck Aythya fuligula,and Common Goldeneye Bucephala clangula)from fishponds in South Bohemia,Czechia,between 2004 and *** evidence was used to assess long-term changes in the adult sex ratio in these breeding populations and investigate the possible effects of the NAO index(North Atlantic Oscillation index)on them,indicating climate conditions in *** determined a long-term decrease of the proportion of females in the breeding season in two of the six examined species:Common Pochard and Red-crested Pochard,which is driven by the long-term increase in the number of males in contrast to the decreasing or stable number of females likely caused by different migration behaviours between females and *** the case of Common Pochard,in breeding populations,we estimated 60-65%of males in the early 2000s rising to 75-80%in the early ***,we establish no significant effects linked to climate conditions of the previous winter in these species as a crucial cause of the changes of the proportion of females in the breeding population.

关键词： Adult sex ratio Breeding population Population dynamics Red-listed species Waterfowl Winter weather conditions

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Cadaverine and putrescine exposure influence carbon and nitrogen cycling genes in water and sediment of the Yellow River

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Journal of Environmental Sciences 2024年第8期142卷 236-247页

作者： Wanghong Su Qiaoling Yu Jiawei Yang Qian Han Sijie Wang petr Hedenec Xiaochen Wang Ruijun Wan-Yan Huan Li School of Public Health Lanzhou UniversityLanzhou 730000China 2 Institute for Tropical Biodiversity and Sustainable DevelopmentUniversity Malaysia Terengganu21030Kuala NerusTerengganuMalaysia State Key Laboratory of Grassland Agro-ecosystems Center for Grassland MicrobiomeCollege of pastoral agriculture science and technology Lanzhou UniversityLanzhou 730000China

The response patterns of microbial functional genes involved in biogeochemical cycles to cadaver decay is a central topic of recent environmental ***,the response mechanisms and pathways of the functional genes associated with the carbon(C)and nitrogen(N)cycling to cadaveric substances such as cadaverine and putrescine remain *** study explored the variation of functional genes associated with C fixation,C degradation and N cycling and their influencing factors under cadaverine,putrescine and mixed *** results showed only putrescine significantly increased the alpha diversity of C fixation genes,while reducing the alpha diversity of N cycling genes in *** the C cycling,the mixed treatment significantly decreased the total abundance of reductive acetyl-CoA pathway genes(i.e.,acsB and acsE)and lig gene linked to lignin degradation in water,while only significantly increasing the hydroxypropionate-hydroxybutylate cycle(i.e.,accA)gene abundance in *** the N cycling,mixed treatment significantly decreased the abundance of the nitrification(i.e.,amoB),denitrification(i.e.,nirS3)genes in water and the assimilation pathway gene(i.e.,gdhA)in *** factors(i.e.,total carbon and total nitrogen)were all negatively associated with the genes of C and N ***,cadaverine and putrescine exposure may inhibit the pathway in C fixation and N cycling,while promoting C *** findings can offer some new insight for the management of amine pollution caused by animal cadavers.

关键词： Carbon cycling Nitrogen cycling Cadaverine Putrescine Pollution management

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High-speed performance self-powered short wave ultraviolet radiation detectors based onκ(ε)-Ga_(2)O_(3)

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Journal of Semiconductors 2024年第4期45卷 56-62页

作者： Aleksei Almaev Alexander Tsymbalov Bogdan Kushnarev Vladimir Nikolaev Alexei Pechnikov Mikhail Scheglov Andrei Chikiryaka petr Korusenko Research and Development Center for Advanced Technologies in Microelectronics National Research Tomsk State UniversityTomsk 634050Russia Fokon LLC Kaluga 248035Russia Department of Semiconductor Electronics and Physics of Semiconductors National University of Science and Technology MISISMoscow 119049Russia Perfect Crystals LLC Saint Petersburg 194223Russia Department of Solid-State Electronics Saint Petersburg State UniversitySaint Petersburg 199034Russia Department of Physics Omsk State Technical UniversityOmsk 644050Russia

High-speed solar-blind short wavelength ultraviolet radiation detectors based onκ(ε)-Ga_(2)O_(3)layers with Pt contacts were demonstrated and their properties were studied in ***κ(ε)-Ga_(2)O_(3)layers were deposited by the halide vapor phase epitaxy on patterned GaN templates with sapphire *** spectral dependencies of the photoelectric properties of struc-tures were analyzed in the wavelength interval 200-370 *** maximum photo to dark current ratio,responsivity,detectiv-ity and external quantum efficiency of structures were determined as:180.86 ***.,3.57 A/W,1.78×10^(12) Hz^(0.5)∙cm·W^(-1) and 2193.6%,respectively,at a wavelength of 200 nm and an applied voltage of 1 *** enhancement of the photoresponse was caused by the decrease in the Schottky barrier at the Pt/κ(ε)-Ga_(2)O_(3)interface under ultraviolet *** detectors demon-strated could functionalize in self-powered mode due to built-in electric field at the Pt/κ(ε)-Ga_(2)O_(3)*** responsivity and external quantum efficiency of the structures at a wavelength of 254 nm and zero applied voltage were 0.9 mA/W and 0.46%,*** rise and decay times in self-powered mode did not exceed 100 ms.

关键词： κ(ε)-gallium oxide solar-blind shortwave ultraviolet radiation detectors self-powered operation mode

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Anorectal hemangioma, a rare cause of lower gastrointestinal bleeding, treated with selective embolization: A case report

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World Journal of Gastrointestinal Surgery 2024年第8期16卷 2735-2741页

作者： Barbora Pospisilova Jaromir Frydrych Antonin Krajina JuliusÖrhalmi Ivana M Kajzrlikova petr Vitek Department of Internal Medicine Hospital in Frydek-MistekFrydek-Mistek 73801Czech Republic Department of Radiodiagnostic Hospital in Jablonec nad NisouJablonec nad Nisou 46601Czech Republic Department of Radiology University Hospital Hradec KraloveHradec Kralove 50005Czech Republic Department of Surgery Hospital HoroviceHorovice 26831Czech Republic Faculty of Medicine University of OstravaOstrava 70300Czech Republic

BACKGROUND Anorectal hemangioma is a rare and frequently misdiagnosed cause of lower gastrointestinal(GI)***,we present a minimally invasive therapy with selective *** SUMMARY A 21-year-old male patient experienced painless rectal bleeding since childhood and was treated for ulcerative *** studies later revealed specific characteristics for vascular lesions-anorectal *** severity of rectal bleeding caused symptomatic anemia and possible surgical treatment was asso-ciated with a high risk of fecal ***,we present selective emboli-zation,a minimally invasive therapeutic approach that is proven as an alternative therapeutic method of *** patient significantly improved temporarily and had a small ischemic ulcer,which healed with a control colonoscopy and deve-loped no *** Awareness of the clinical and radiological features of GI hemangiomas may help improve diagnostics and avoid inappropriate therapeutic procedures.

关键词： Hemangioma Vascular malformation Gastrointestinal hemorrhage Rectal bleeding Phlebolith Selective embolization Case report

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Catalytic co-combustion of biomass and brown coal in a fluidized bed:Economic and environmental benefits

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Journal of Environmental Sciences 2024年第6期140卷 24-36页

作者： Yury V.Dubinin Nikolay A.Yazykov petr M.Yeletsky Roman B.Tabakaev Aleksandra I.Belyanovskaya Vadim A.Yakovlev Federal Research Center Boreskov Institute of Catalysis SB RAS Lavrentiev Ave.5Novosibirsk630090Russia University of Tyumen Volodarskogo str.6Tyumen625003Russia

The work is devoted to the study of combustion of brown coal,pine sawdust,and their mixtures in a fluidized bed of catalyst at 600-750℃.It is shown that an increase in the content of sawdust in a mixture with brown coal leads to an increase in the burnout degree of solid fuel from 94.4%to 99.9%,while the emission of greenhouse gases in the form of CO_(2)CO and NOxis reduced(CO_(2)from the biomass is not included in the balance).The high content of alkaline earth metal oxides(CaO and MgO)in the mineral part of brown coal,sawdust,and their mixtures eliminates the emission of sulfur oxides and the slagging of heat-exchange surfaces during the combustion in a fluidized bed of *** optimal temperature,when the highest burnout degree of the above fuels is achieved in the combustion is 750℃.It is also shown that the increase in temperature and the content of sawdust in the composition of the fuel mixtures has a positive effect on the economic and environmental process indicators.

关键词： Co-combustion Fluidized catalyst bed Biomass Coal Economic effect Environmental impact

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A perspective review on the biosynthesis of plant-based secondary metabolites and their application as potent drugs

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BIOCELL 2024年第4期48卷 541-557页

作者： JHILAM PRAMANIK AKASH KUMAR SARVESH RUSTAGI MEHAK KATYAL SHEETAL THAKUR JUTISHNA BORA SUMIRA MALIK ANCHAL TREHAN NAYAN TALUKDAR petr SLAMA Department of Food Technology ITM UniversityGwaliorIndia Department of Food Technology SRM UniversitySonipatIndia Department of Food Technology Uttaranchal UniversityDehradunIndia Department of Nutrition and Dietetics Manav Rachna International Institute of Research&Studies(MRIIRS)FaridabadIndia University Centre for Research and Development UIBTChandigarh UniversityMohaliIndia Amity institute of Biotechnology Amity UniversityJharkhandRanchiIndia Department of Biotechnology University Center for Research&Development(UCRD)Chandigarh UniversityMohaliPunjabIndia Department of Science Guru Nanak College of Pharmaceutical SciencesDehradunIndia Program of Biotechnology Faculty of ScienceAssam down town UniversityGuwahatiIndia Department of Animal Morphology Physiology and GeneticsMendel University in BrnoBrnoCzech Republic

Many phytochemicals and their derived metabolites produced by plants are extensively employed in commercial goods,pharmaceutical products as well as in the environmental and medicalﬁ***,these secondary metabolites obtained from plants are in low amounts,and it is difﬁcult to synthesize them at the industrial *** these challenges,they may be utilized for a variety of medicinal products that are either available in the market or are being researched and *** metabolites are complex compounds that exhibit ***,under controlled conditions with elicitors,desired secondary metabolites may be produced from plant cell *** review emphasizes the various aspects of secondary metabolites including their types,synthesis,and applications as medicinal *** article aims to promote the use of plant secondary metabolites in the management and treatment of various diseases.

关键词： Secondary metabolites Medicinal plant Synthesis Health benefits

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An integrated microfluidic platform for nucleic acid testing

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Microsystems & Nanoengineering 2024年第3期10卷 181-194页

作者： Antao Sun petra Vopařilová Xiaocheng Liu Bingqian Kou TomášŘezníček TomášLednický Sheng Ni JiříKudr Ondřej Zítka Zdenka Fohlerová petr Pajer Haoqing Zhang Pavel Neužil Ministry of Education Key Laboratory of Micro and Nano Systems for Aerospace School of Mechanical EngineeringNorthwestern Polytechnical University127 West Youyi RoadXi’anShaanxi 710072P.R.China Department of Chemistry and Biochemistry Mendel University in BrnoZemědělská161300 BrnoCzech Republic ITD Tech s.r.o Osvoboditelů100573581 BohumínCzech Republic Central European Institute of Technology Brno University of TechnologyPurkyňova 123Brno 61200Czech Republic Department of Electronic and Computer Engineering The Hong Kong University of Science and TechnologyClear Water BayKowloonHong Kong SARChina Department of Microelectronics Faculty of Electrical Engineering and CommunicationBrno University of TechnologyTechnická3058/10Brno 61600Czech Republic Military Health Institute U Vojenskénemocnice 120016200 Praha 6Czech Republic The Key Laboratory of Biomedical Information Engineering of Ministry of Education School of Life Science and TechnologyXi’an Jiaotong UniversityXi’anShaanxi 710049P.R.China Bioinspired Engineering and Biomechanics Center(BEBC) Xi’an Jiaotong UniversityXi’an 710049P.R.China

This study presents a rapid and versatile low-cost sample-to-answer system for SARS-CoV-2 *** system integrates the extraction and purification of nucleic acids,followed by amplification via either reverse transcriptionquantitative polymerase chain reaction(RT–qPCR)or reverse transcription loop-mediated isothermal amplification(RT–LAMP).By meeting diverse diagnostic and reagent needs,the platform yields testing results that closely align with those of commercial RT-LAMP and RT‒qPCR *** advantages of our system include its speed and *** assay is completed within 28 min,including sample loading(5 min),ribonucleic acid(RNA)extraction(3 min),and RT-LAMP(20 min).The cost of each assay is≈$9.5,and this pricing is competitive against that of Food and Drug Administration(FDA)-approved commercial *** some RNA loss during on-chip extraction is observed,the platform maintains a potential limit of detection lower than 297 *** makes the system particularly useful in environments where centralized laboratories are either unavailable or inconveniently *** key feature is the platform’s versatility,allowing users to choose between RT‒qPCR or RT‒LAMP tests based on specific requirements.

关键词： testing maintain versatile

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Selected issues of cartographic communication optimization for emergency centers

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International Journal of Digital Earth 2010年第4期3卷 316-339页

作者： Karel Staněk Lucie Friedmannová petr Kubıcek Milan Konecný Laboratory on Geoinformatics and Cartography Department of GeographyFaculty of ScienceMasaryk UniversityBrnoCzech Republic

Cartographic communication and support within emergency management(EM)are complicated issues with changing demands according to the incident extent and phase of the EM *** in mind the specifics of each purpose,it is obvious that spatial data used for maps preparation and production must be differently visualized even for the same type of emergency incident(traffic accident,fire,and natural disaster).Context-based cartography is a promising methodology to deal with the changing demands of an operational EM *** overview of cartographic communication is presented within the context of an operational EM center,activities of particular actors,and map use supporting the incident *** authors of the paper respond to a series of questions,for example:what is the current cartographic support of operational EM in the Czech Republic in Digital Earth conditions?What possibilities are there to improve the cartographic communication?How can contextual cartographic services be implemented in a Web environment and how can the usability of results be tested?The paper gives several examples of the usage of cartographic technologies in map creation for various emergency situations.

关键词： map use cartographic communication context-based cartography Digital Earth operational emergency management

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Biochar surface functional groups as affected by biomass feedstock, biochar composition and pyrolysis temperature

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Carbon Resources Conversion 2021年第1期4卷 36-46页

作者： Rainer Janu Verena Mrlik Doris Ribitsch Jakub Hofman petr Sedlácek Lucie Bielsk Gerhard Soja AIT Austrian Institute of Technology GmbH Konrad Lorenz-Str.243430 TullnAustria University of Natural Resources and Life Sciences Institute of Environmental BiotechnologyKonrad Lorenz-Str.203430 TullnAustria Masaryk University Faculty of ScienceRECETOXKamenice 753/562500 BrnoCzech Republic Brno University of Technology Materials Research CentrePurkyňova 464/11861200 BrnoCzech Republic University of Natural Resources and Life Sciences Institute for Chemical and Energy EngineeringMuthgasse 1071190 WienAustria

By testing 92 different biochars,this study had the objective to determine the relations between simple physico-chemical characteristics of biochar(elemental composition,ash fraction,specific surface area,process parameters)and infrared sorption characteristics revealing the presence of specific functional *** results of Diffusive Reflection Fourier Transformation Infrared Spectroscopy were statistically analyzed with multiple linear regression techniques and Principal Component Analysis(PCA)with the biochar characterization parameters as model *** dominant parameters affecting the functional group signals were the pyrolysis temperature,the H/C-ratio and specific surface area of the biochar and the ash *** models were able to explain 60-90%of data variance for specific peaks in the *** application of PCA could further reduce the input parameters to three main factors explaining 70.8%of total data *** of the first two main factors showed the similarity of infrared spectra of biochars produced at 300 and 450℃,whereas a pyrolysis temperature of 600℃ lead to a partial and a 750℃ to a nearly complete loss of biochar surface functional groups.

关键词： FTIR DRIFTS Spectroscopy Characterization Carbonization

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全自动磨坊粮仓改造

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现代装饰 2024年第4期 54-61页

作者：无 petr Polák(摄影) 范嘉苑(编译) 捷克ProkšPrikryl Architekti 不详

这座全自动化的磨坊是捷克的国家级别文化纪念碑,亦是建筑师Josef Gocár早期设计的首批建筑之一。坐落于帕尔杜比采市中心的Chrudimka河畔,这座丰碑式的磨坊建筑于1909年由Winternitz兄弟创建。在1924年,建筑群进行了扩建,增加了一座谷... 详细信息

这座全自动化的磨坊是捷克的国家级别文化纪念碑,亦是建筑师Josef Gocár早期设计的首批建筑之一。坐落于帕尔杜比采市中心的Chrudimka河畔,这座丰碑式的磨坊建筑于1909年由Winternitz兄弟创建。在1924年,建筑群进行了扩建,增加了一座谷仓,而其改造设计则由Proks Prikryl建筑事务所担纲。这座全自动化磨坊一直持续运营至2013年,将近100年的时间。从2016年起,在全自动磨坊基金会的推动下,磨坊这一片函待重新开发的城市用地开始转型为文化和都市城区。

关键词：建筑事务所城市用地全自动化纪念碑谷仓建筑群改造设计持续运营

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