Počet nalezených dokumentů: 1363
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PHYSICOCHEMICAL CHARACTERISTICS AND EVOLUTION OF AEROSOL FROM OPEN COMBUSTION OF BIOMASS DURING THE TRADITIONAL “BURNING OF THE WITCHES”
Mbengue, Saliou; Vodička, Petr; Komínková, Kateřina; Schwarz, Jaroslav; Zíková, Naděžda; Vítková, Gabriela; Windell, Laurence Christian; Suchánková, Lenka; Lhotka, Radek; Julaha, Kajal; Prokeš, Roman; Šmejkalová Holubová, A.; Ondráček, Jakub; Ždímal, Vladimír; Holoubek, Ivan
2023 - anglický
Open biomass burning (OBB) is a major source releasing large quantities of gaseous and particulate pollutants into the atmosphere, with global, regional and local impacts on air quality, public health and climate (Andreae, 2019, Chen et al., 2017). OBB aerosols mainly consist of carbonaceous matter, and a considerable amount of inorganic salts, which present distinctly different optical properties (Chen et al., 2017, Reid et al., 2005). In this study, we investigate the influence of OBB during the traditional Burning of the Witches (BoW), referred to in Czech as “Pálení čarodějnic”, on the physico-chemical properties of atmospheric aerosols collected at the National Atmospheric Observatory Košetice (NAOK). The BoW is a centuries-old pagan tradition very popular in the Czech Republic. Today, it is celebrated during the night from April 30 to May 1 by lighting bonfires made of woodpiles with fake witches. Klíčová slova: biomass burning; air pollution; size distribution; atmospheric ageing Plné texty jsou dostupné v digitálním repozitáři Akademie Věd.
PHYSICOCHEMICAL CHARACTERISTICS AND EVOLUTION OF AEROSOL FROM OPEN COMBUSTION OF BIOMASS DURING THE TRADITIONAL “BURNING OF THE WITCHES”

Open biomass burning (OBB) is a major source releasing large quantities of gaseous and particulate pollutants into the atmosphere, with global, regional and local impacts on air quality, public health ...

Mbengue, Saliou; Vodička, Petr; Komínková, Kateřina; Schwarz, Jaroslav; Zíková, Naděžda; Vítková, Gabriela; Windell, Laurence Christian; Suchánková, Lenka; Lhotka, Radek; Julaha, Kajal; Prokeš, Roman; Šmejkalová Holubová, A.; Ondráček, Jakub; Ždímal, Vladimír; Holoubek, Ivan
Ústav výzkumu globální změny , 2023

PM1 UNDER THE MICROSCOPE: MULTI-ANNUAL AEROSOL OPTICAL PROPERTIES AND SIZE DISTIRBUTION OBSERVATION AT PERI-URBAN ATMOSPHERIC SITE ATOLL
Suchánková, Lenka; Bourrianne, E.; De Fillipi, R.; De Brito, J. F.; Riffault, V.; Prokeš, Roman; Holoubek, Ivan; Ždímal, V.; Crumeyrolle, S.
2023 - anglický
Atmospheric aerosols (AA) belong to short-lived climate forcers with high spatial and temporal variability. Although the radiative effects of AA are greatest on regional scales, changes in aerosol emissions can induce long-term global climate effects (Szopa et al., 2021). Thus, the measurement of aerosol properties is essential for better understanding of aerosol’s impact on health and climate. Although several international projects and platforms have been monitoring AA properties worldwide (GAW, WMO, ACTRIS, EMEP, EUCAARI, etc., Pandolfi et al., 2018), only PM10 or PM2.5 cutoff sizes have been used for measurements, and information about PM1 particles is missing. \nThe aim of this study is to present aerosol scattering properties with supporting data of absorption and particle number size distribution in PM1 in years 2018-2022 at peri-urban atmospheric site “Atmospheric Observations in LiLLE (ATOLL) in Lille, France. This study is the first to present results dedicated to aerosol scattering properties at this site. Klíčová slova: pm1; scattering coefficient; nephelometer; fossil fuel and biomass burning contribution; aethalometer; smps Plné texty jsou dostupné v digitálním repozitáři Akademie Věd.
PM1 UNDER THE MICROSCOPE: MULTI-ANNUAL AEROSOL OPTICAL PROPERTIES AND SIZE DISTIRBUTION OBSERVATION AT PERI-URBAN ATMOSPHERIC SITE ATOLL

Atmospheric aerosols (AA) belong to short-lived climate forcers with high spatial and temporal variability. Although the radiative effects of AA are greatest on regional scales, changes in aerosol ...

Suchánková, Lenka; Bourrianne, E.; De Fillipi, R.; De Brito, J. F.; Riffault, V.; Prokeš, Roman; Holoubek, Ivan; Ždímal, V.; Crumeyrolle, S.
Ústav výzkumu globální změny , 2023

CECE 2023. 18th International Interdisciplinary Meeting on Bioanalysis
Foret, František; Lavická, Jana; Přikryl, Jan
2023 - anglický
This year the Proceedings included abstracts of 27 oral and 33 poster presentations. The attached conference proceedings, edited by highly cited scientists, documents the quality of the meeting. Similarly to the previous years the lectures were given by outstanding, highly cited, scientists. The list of speakers as well as more detailed information about the conference can be found on its permanent web at www.ce-ce.org. Klíčová slova: bioanalysis; separation; biotechnology Dokument je dostupný na externích webových stránkách.
CECE 2023. 18th International Interdisciplinary Meeting on Bioanalysis

This year the Proceedings included abstracts of 27 oral and 33 poster presentations. The attached conference proceedings, edited by highly cited scientists, documents the quality of the meeting. ...

Foret, František; Lavická, Jana; Přikryl, Jan
Ústav analytické chemie, 2023

Cesty ke spravedlivé transformaci krajiny
Nohlová, Barbora; Sagapová, Nikola; Harmáčková, Veronika Zuzana
2023 - český
Projekt Just Scapes byl oficiálně spuštěn v roce 2020. Jedná se o konzorcium tří zemí (Velká Británie, Francie a Česká republika), které výzkumně působí ve třech typech krajiny: skotské vysočině, francouzské venkovské krajině jihovýchodních Pyrenejí a české, kulturní krajině jižní a východní Moravy. Projekt se zaměřuje především na mechanismy a procesy spravedlivé transformace a odpovědi na následující otázky, klíčové pro budoucnost: Jak jsou distribuovány dopady změny klimatu? Jak jsou rozděleny dopady a efekt\npolitik v oblasti managementu krajiny a změny klimatu? Výzkum byl založen na přístupu tzv. ,,laboratoří spravedlivé transformace,,(T-labs). Tento přístup je speciálně uzpůsobený k podpoře spolupráce při řešení složitých společenských problémů. Součástí výzkumu byly rovněž rozsáhlé pobyty v terénu a spolupráce s relevantními klíčovými aktéry. Také proběhly četné rozhovory a workshopy. Tento text vznikl na základě dlouhodobé výzkumné spolupráce s klíčovými aktéry spravujícími krajinu v pěti vinařských a zemědělských oblastech jižní a východní Moravy. Výzkum se zaměřil na mechanismy spravedlivé transformace. Pokud stávající stav krajiny vede k její zranitelnosti vůči dopadům klimatické změny, je nutné si položit otázku, jaké změny je potřebné provést, aby se zvýšila její odolnost. A přesně to se prostřednictvím projektu podařilo definovat. The Just Scapes project was officially launched in 2020 and is a consortium of three countries (UK, France and Czech Republic) researching three types of landscape: the Scottish Highlands, the French rural landscape of the south-eastern Pyrenees and the Czech cultural landscape of southern and eastern Moravia. The project focuses primarily on the mechanisms and processes of equitable transformation and answers the following questions, crucial for the future: How are the impacts of climate change distributed? How are impacts and effects distributed?\nof landscape management and climate change policies? The research was based on the approach of the so-called ,,just transformation laboratories,, (T-labs). This approach is specifically tailored to foster collaborative solutions to complex societal problems. The research also included extensive field visits and engagement with relevant key actors. Numerous interviews and workshops were also conducted. This text is the result of a long-term research collaboration with key actors managing the landscape in five wine and agricultural regions of South and East Moravia. The research focused on mechanisms of equitable transformation. If the current state of the landscape leads to its vulnerability to the impacts of climate change, it is necessary to ask what changes are needed to increase its resilience. And this is exactly what the project has succeeded in defining. Klíčová slova: just transformation; climate change; adaptation measures; social-ecological systems; environmental justice Plné texty jsou dostupné v digitálním repozitáři Akademie Věd.
Cesty ke spravedlivé transformaci krajiny

Projekt Just Scapes byl oficiálně spuštěn v roce 2020. Jedná se o konzorcium tří zemí (Velká Británie, Francie a Česká republika), které výzkumně působí ve třech typech krajiny: skotské vysočině, ...

Nohlová, Barbora; Sagapová, Nikola; Harmáčková, Veronika Zuzana
Ústav výzkumu globální změny , 2023

Organoruthenium glycomimetics as selective galectin-1 inhibitors
Hamala, Vojtěch
2023 - anglický
The prepared organoruthenium glycomimetics demonstrated sin gle unit nanomolar affinity to Gal-1 and over four orders of magnitude\nhigher selectivity to Gal-1 in comparison to Gal-3. The organoruthe nium galectin inhibitors were found to be nontoxic to both cancer and\nnoncancerous cell lines. Selected complexes showed an in vitro an timigratory effect against invasive cancer cell lines MDA-MB-231 and\nSK-OV-3. Klíčová slova: galectin inhibitors; glycomimetcs; carbohydrates Plné texty jsou dostupné v digitálním repozitáři NUŠL
Organoruthenium glycomimetics as selective galectin-1 inhibitors

The prepared organoruthenium glycomimetics demonstrated sin gle unit nanomolar affinity to Gal-1 and over four orders of magnitude\nhigher selectivity to Gal-1 in comparison to Gal-3. The organoruthe ...

Hamala, Vojtěch
Ústav chemických procesů, 2023

Use of photoautotrophic microorganisms in bioremediation of surface waters
Mušálková, Petra
2023 - anglický
Extensive experimental work has been executed to examine suitability of the proposed approach. Throughout the experiments, phosphorus concentration in the media was measured spectrophotometrically, to confirm the amount of phosphorus uptake,\nthe intracellular phosphorus concentration was analyzed by ICP-OES spectrophotometry.\n Klíčová slova: photoautotrophic microorganisms; surface water; phosphorus; bioremediation Plné texty jsou dostupné v digitálním repozitáři NUŠL
Use of photoautotrophic microorganisms in bioremediation of surface waters

Extensive experimental work has been executed to examine suitability of the proposed approach. Throughout the experiments, phosphorus concentration in the media was measured spectrophotometrically, to ...

Mušálková, Petra
Ústav chemických procesů, 2023

Investigation of recycling possibilities of discarded photovoltaic solar panels
Šperlich, Antonín
2023 - anglický
This work aims to find an economically effective and industrially feasible method of how to recycle discarded photovoltaic solar panels. Performed experiments determined the exact composition of photovoltaic solar panels and the advantages and disadvantages of the treatment mentioned in the literature. Results will be used for a full-scale industrial unit design for solar photovoltaic panels recycling.\n Klíčová slova: photovoltaic solar panels; recycling; experiments Plné texty jsou dostupné v digitálním repozitáři NUŠL
Investigation of recycling possibilities of discarded photovoltaic solar panels

This work aims to find an economically effective and industrially feasible method of how to recycle discarded photovoltaic solar panels. Performed experiments determined the exact composition of ...

Šperlich, Antonín
Ústav chemických procesů, 2023

The effect of meteorology and aerosol size distribution on light scattering properties at a rural background site in Central Europe
Suchánková, Lenka
2023 - anglický
The aim of this study is to characterize the light scattering properties of aerosols at the rural background site National Atmospheric\nObservatory Košetice (NAOK; 49°34’20.787”N, 15°4’48.155”E) in Central Europe, namely the coefficients of total light scattering (σsp) and backscattering (σbsp), the Ångström exponent (SAE), the backscattering ratio (b), and the asymmetry factor (g), with special attention to the influence of meteorology and aerosol size distribution on these properties. We measured σ𝑠𝑝 and σ𝑏𝑠𝑝 at three wavelengths (450, 550, and 700 nm) using the Integrating Nephelometer TSI 3563 (PM10 inlet). The measurements were performed from August 16, 2012 to December 31, 2019. Klíčová slova: properties aerosols; backscattering; measurements Plné texty jsou dostupné v digitálním repozitáři NUŠL
The effect of meteorology and aerosol size distribution on light scattering properties at a rural background site in Central Europe

The aim of this study is to characterize the light scattering properties of aerosols at the rural background site National Atmospheric\nObservatory Košetice (NAOK; 49°34’20.787”N, 15°4’48.155”E) in ...

Suchánková, Lenka
Ústav chemických procesů, 2023

N-alkylation of a lysergic acid derivative under PTC conditions in a continuous arrangement using sonication
Jaklová, Natalie
2023 - anglický
This contribution focuses on the application of sonication to the synthesis of a methyl ester of the 1-methyl-10α-methoxydihydrolysergic acid (MeLUME). Klíčová slova: sonication; synthesis; methyl ester Plné texty jsou dostupné v digitálním repozitáři NUŠL
N-alkylation of a lysergic acid derivative under PTC conditions in a continuous arrangement using sonication

This contribution focuses on the application of sonication to the synthesis of a methyl ester of the 1-methyl-10α-methoxydihydrolysergic acid (MeLUME).

Jaklová, Natalie
Ústav chemických procesů, 2023

PROCESSING OF THE DATA MEASURED WITH CLOUD CONDENSATION NUCLEI COUNTER IN YEAR 2020 FOR SUBMISSION TO EBAS DATABASE
Moravec, Pavel; Jindra, Tomáš; Wagner, Zdeněk; Ždímal, Vladimír
2023 - anglický
Aerosol particles in the atmosphere that allow water vapor to condense and form cloud droplets are called Cloud Condensation Nuclei (CCN). Elevated concentrations of CCN tend to increase the concentration and decrease the size of cloud droplets. This can lead to suppression of precipitation in shallow and short-lived clouds and to greater convective overturning and more precipitation in deep convective clouds, Rose et al.(2010). The response of cloud properties and precipitation processes to increasing anthropogenic aerosol concentrations represents one of the largest uncertainties in the current understanding of climate change. One of the fundamental challenges is to determine the ability of aerosol particles to act as CCN under relevant atmospheric conditions. Knowledge of the spatial and temporal distribution in the atmosphere is essential to incorporate the effects of CCN into meteorological models of all scales, Huang et al. (2007). Long-term CCN measurements are performed at aerosol monitoring sites such as those forming ACTRIS (Aerosols, Clouds, and Trace Gases Research Infrastructure) network. Measured data are then submitted to the EBAS database, where they are available for the other ACTRIS researchers. In this paper, we present our experience with the processing of the data measured with CCNC for submission to the EBAS database. The data prepared for submission to EBAS from year 2020 are also presented. Klíčová slova: atmospheric aerosols; CCNC; cloud condensation nuclei concentrations Plné texty jsou dostupné v digitálním repozitáři NUŠL
PROCESSING OF THE DATA MEASURED WITH CLOUD CONDENSATION NUCLEI COUNTER IN YEAR 2020 FOR SUBMISSION TO EBAS DATABASE

Aerosol particles in the atmosphere that allow water vapor to condense and form cloud droplets are called Cloud Condensation Nuclei (CCN). Elevated concentrations of CCN tend to increase the ...

Moravec, Pavel; Jindra, Tomáš; Wagner, Zdeněk; Ždímal, Vladimír
Ústav chemických procesů, 2023

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