47 Works

Cooperation between Museums and Galleries for Achieve a Complex Teaching about Architecture

Olga Búciová

SCOLA TELCZ – Example of Interdisciplinary Workshop

Jitka Burdová & Olga Búciová

Supplement to: Global impact of the COVID-19 pandemic on stroke care and intravenous thrombolysis

Raul Nogueira, Muhammed Qureshi, Mohamad Abdalkader, Sheila Martins, Hiroshi Yamagami, Zhongming Qiu, Ossama Mansour, Anvitha Sathya, Anna Czlonkowska, Georgios Tsivgoulis, Diana Aguiar De Sousa, Jelle Demeestere, Robert Mikulik, Peter Vanacker, James Siegler, Janika Korv, Jose Biller, Conrad Liang, Navdeep Sangha, Alicia Zha, Alexandra Czap, Christine Holmstedt, Tanya Turan, George Ntaios, Konark Malhotra … & Thanh Nguyen
Objective: The objectives of this study were to measure the global impact of the pandemic on the volumes for intravenous thrombolysis (IVT), IVT transfers, and stroke hospitalizations over 4 months at the height of the pandemic (March 1 to June 30, 2020) compared with two control 4-month periods. Methods: We conducted a cross-sectional, observational, retrospective study across 6 continents, 70 countries, and 457 stroke centers. Diagnoses were identified by their ICD-10 codes and/or classifications in...

Data from: Postglacial determinants of regional species pools in alpine grasslands

Borja Jiménez-Alfaro, Wolfgang Willner, Eszter Ruprecht, Kiril Vassilev, Nevena Kuzmanovic, Renata Ćušterevska, Djordjije Milanovic, Josef Sibik, Sylvain Abdulhak, Angela Stanisci, Maria Luisa Carranza, Ariel Bergamini, Corrado Marcenó & Gianpietro Giusso Del Galdo
Aim: Alpine habitats support unique biodiversity confined to high-elevation areas in the current interglacial. Plant diversity in these habitats responds to area, environment, connectivity and isolation, yet these factors have been rarely evaluated in concert. Here we investigate major determinants of regional species pools in alpine grasslands, and the responses of their constituent species groups. Location: European mountains below 50ºN. Time Period: Between 1928 and 2019. Major Taxa Studied: Vascular plants. Methods: We compiled species...

What defines insularity for plants in edaphic islands?

Francisco Emmanuel Méndez Castro, Luisa Conti, Milan Chytrý, Borja Jimenez-Alfaro, Michal Hajek, Michal Horsák, David Zeleny, Marco Malavasi & Gianluigi Ottaviani
The Theory of Island Biogeography postulates that size and isolation are key drivers of biodiversity on islands. This theory has been applied not only to true (e.g. oceanic) islands but also to terrestrial island-like systems (e.g. edaphic islands). Recently, a debate has opened as to whether terrestrial island-like systems function like true islands. However, identifying the effect of insularity in terrestrial systems is conceptually and methodologically challenging because recognizing species source(s) and measuring isolation is...

Complexation of Ferrocene Derivatives by the Cucurbit[7]uril Host:  A Comparative Study of the Cucurbituril and Cyclodextrin Host Families

Woo Sung Jeon, Kwangyul Moon, Sang Hyun Park, Hyungpil Chun, Young Ho Ko, Jin Yong Lee, Eun Sung Lee, S. Samal, N. Selvapalam, Mikhail V. Rekharsky, Vladimir Sindelar, David Sobransingh, Yoshihisa Inoue, Angel E. Kaifer & Kimoon Kim
The formation of inclusion complexes between cucurbit[7]uril (CB[7]) and ferrocene and its derivatives has been investigated. The X-ray crystal structure of the 1:1 inclusion complex between ferrocene and CB[7] revealed that the guest molecule resides in the host cavity with two different orientations. Inclusion of a set of five water-soluble ferrocene derivatives in CB[7] was investigated by 1H NMR spectroscopy and calorimetric and voltammetric techniques. Our data indicate that all neutral and cationic guests form...

Tight inclusion complexation of 2,7-dimethyldiazapyrenium in cucurbit[7]uril

Angel E. Kaifer, Vladimir Sindelar, Mabel A. Cejas & Fran�isco M. Raymo
The dicationic guest 2,7-dimethyldiazapyrenium is bound inside the host cucurbit[7]uril, forming a very stable inclusion complex in which the host undergoes structural distortions to accommodate the guest.

A Bambusuril Macrocycle that Binds Anions in Water with High Affinity and Selectivity

Mirza Arfan Yawer, Vaclav Havel & Vladimir Sindelar
One ring binds them all: A bambusuril macrocycle is able to selectively capture a large number of different inorganic anions in water. The high stability of the resulting inclusion complexes is due t...

Data from: Facebook groups as citizen science tools for plant species monitoring

Riccardo Guarino, Emanuele Genduso, Dario Salemi & Corrado Marcenò
Species list of the vascular flora of Sicily and related plant traits analysed in the paper "Facebook groups as citizen science tools for plant species monitoring". These include: floral traits, vegetative traits, life form, plant size, traditional use (edible/healing plants only). All traits were extracted from the digital archives of the Flora of Italy (Pignatti et al. 2017-2019) except for the conservation status of species, which was taken from Raimondo et al. (2011) and from...

Data from: Temporal turnover of the soil microbiome composition is guild-specific

Tijana Martinovic, Iñaki Odriozola, Tereza Mašínová, Barbara Bahnmann, Petr Kohout, Petr Sedlák, Kristina Merunková, Tomáš Větrovský, Michal Tomšovský, Otso Ovaskainen & Petr Baldrian
Although spatial and temporal variation are both important components structuring microbial communities, the exact quantification of temporal turnover rates of fungi and bacteria has not been performed to date. In this study, we utilized repeated resampling of bacterial and fungal communities at specific locations across multiple years to describe their patterns and rates of temporal turnover. Our results show that microbial communities undergo temporal change at a rate of 0.010-0.025 per year (in units of...

Data from: New drivers of the evolution of mimetic accuracy in Batesian mimics: body size, habitat stratification and geographic zone affect accuracy of myrmecomorphic spiders

Stano Pekar
Aim: The evolution and maintenance of accurate Batesian mimicry has been explained by several hypotheses built upon relaxed selection. Such selection can be influenced by ecological factors, such as habitat type or geographic distribution, which have not been considered. I investigated whether the mimetic accuracy is influenced by habitat stratification where mimics occur (ground, low vegetation, bush, tree), their body size, and geographic distribution (temperate, subtropical, tropical). Location: Worldwide Taxon: Araneae Methods: I gathered data...

The dry grasslands (Festuco-Brometea) of the North Caucasus: first data on numerical classification and biodiversity patterns

Denys Vynokurov, Tatiana Lysenko, Zoya Dutova, Dmitriy Shylnikov, Galina Doroshina, Irina Urbanavichene, Gennadii Urbanavichus & Nelly Tsepkova
The North Caucasus is still one of the least studied regions in Europe regarding syntaxonomy. We investigated dry grasslands in the central part of the North Caucasus, namely in the Stavropol Kray region of Russia. We sampled 47 vegetation plots (relevés) of 10 m2 size (3.16 × 3.16 m) at elevations from 470 to 1150 m a.s.l. To determine the scale-dependent species richness patterns, we recorded five nested-plot series of 0.0001 to 100 m² in...

Carpinus orientalis forests in Georgian Colchis: First insights

Pavel Novák, Vladimir Stupar & Veronika Kalníková
Colchis (Caucasus Ecoregion, Euxinian Province) is a region with unique Tertiary relict biota and high species and vegetation diversity. However, its vegetation has been only little studied by Braun- Blanquet methods so far. Based on original field data (20 phytosociological relevés), we describe a novel vegetation type of calciphilous and thermophilous Carpinus orientalis forests in western Geor- gia (Campanulo alliariifoliae-Carpinetum orientalis ass. nova). This species-rich community inhabits sunny limestone slopes and is developed under a...

Chiral Bambusurils for Enantioselective Recognition of Carboxylate Anion Guests

Jan Sokolov & Vladimir Sindelar
Abstract Synthesis of the first enantiomerically pure chiral bambusurils is reported. The bambusurils were prepared on the gram scale without using any chromatography techniques. The bambusurils fo...

Functionalized Chiral Bambusurils: Synthesis and Host‐Guest Interactions with Chiral Carboxylates

Jan Sokolov, Adam Štefek & Vladimír Šindelář
Abstract Bambusurils are a class of macrocyclic anion receptors that exhibit notable anion recognition properties, able to bind various inorganic anions as well the carboxylates or sulfonates. Rece...

Electron Density Shift in Imidazolium Derivatives upon Complexation with Cucurbit[6]uril

Viktor Kolman, Radek Marek, Zora Strelcova, Petr Kulhanek, Marek Necas, Jan Svec & Vladimir Sindelar
Abstract In this study, we have investigated the supramolecular interaction between series of 1-alkyl-3-methylimidazolium guests with variable alkyl substituent lengths and cucurbit[6]uril (CB6) in...

Anion Binding Inside a Bambus[6]uril Macrocycle in Chloroform

Vaclav Havel & Vladimir Sindelar
Abstract Bambus[6]urils are a class of neutral anion receptors with outstanding binding properties in various solvents. The host–guest associations of bambusurils in aqueous environments have been ...

Determination of habitat requirements of the glacial relict Nuphar pumila as basis for successful (re-)introductions

Sabrina Keller, Manuel Babbi, Stefan Widmer, Jamyra Gehler, Sonja Hausmann, Christian Berg, Flavia Landucci, Patrick Schwager, Kateřina Šumberová & Jürgen Dengler
Nuphar pumilais a glacial relict, which is nowadays rare throughout Europe and red-listed in most European regions. In Switzerland only three autochthonous populations and one population of the hybrid with N. lutea (N. ×spenneriana) have survived to date, one of them in the canton of Zurich. To protect this species regionally, the canton of Zurich has commissioned the ex situ propagation of speci-mens, which then had been introduced to 37 water bodies in protected areas,...

De novo developed microsatellite markers in gill parasites of the genus Dactylogyrus (Monogenea)

Michal Benovics, Lenka Gettová & Andrea Šimková
Approaches using microsatellite markers are considered the gold standard for modern population-genetic studies. However, though they have found application in research into various platyhelminth taxa, they remained substantially underutilized in the study of monogeneans. In the present study, a newly-developed set of 24 microsatellite markers was used to investigate the genetic diversity of the generalist monogenean species Dactylogyrus vistulae. The analyzed parasite specimens were collected from 13 cyprinoid species from 11 sites in the Apennine...

Water-mediated inclusion of benzoates and tosylates inside the bambusuril macrocycle

Angel E. Kaifer, Vaclav Havel, Vladimir Sindelar & Marek Necas
A supramolecular complex between benzoates and a bambusuril crystallizes out immediately after mixing in chloroform but only in the presence of residual water molecules. In this complex each of the two portals of the macrocycle is occupied by one benzoate. Carboxylate groups are connected through hydrogen bo

Remarkable Salt Effect on Stability of Supramolecular Complex between Modified Cucurbit[6]uril and Methylviologen in Aqueous Media

Vladimir Sindelar, Muhammad S. A. Khan, Marek Necas & Dominik Heger
The supramolecular complex formed by partial inclusion of methylviologen in MeCB6 was described both in solution and in the solid state. The association constant of the complex was determined using 1H NMR and UV−vis spectrophotometric titration. An extraordinary 2000-fold drop in the association constant of the complex was observed when pure water was replaced by 50 mM NaCl solution.

Anion-Free Bambus[6]uril and Its Supramolecular Properties

Jan Svec, Michal Dusek, Karla Fejfarova, Peter Stacko, Petr Klán, Angel E. Kaifer, Wei Li, Edita Hudeckova & Vladimir Sindelar
Abstract Methods for the preparation of anion-free bambus[6]uril (BU6) are presented. They are based on the oxidation of iodide anion, which is bound inside the macrocycle, utilizing dark oxidation...

Inclusion of Carboxyl Function Inside of Cucurbiturils and its Use in Molecular Switches

Viktor Kolman, Petr Kulhanek & Vladimir Sindelar
Organic flip-flop: Cucurbit[n]uril hosts (where n=7,8) and dipyridinium guests form stable inclusion complexes in which the central carboxyl function can be included inside the host cavity. The pseud...

Pronounced pH effects on the kinetics of cucurbit[7]uril-based pseudorotaxane formation and dissociation

Angel E. Kaifer, Wei Li, Serena Silvi & Vladimir Sindelar
Deprotonation of the two terminal COOH groups on a 4,4′-bipyridinium linear derivative leads to a pronounced slow down on the kinetics of threading and unthreading by the cucurbit[7]uril host.

Supramolecular Assembly of 2,7-Dimethyldiazapyrenium and Cucurbit[8]uril: A New Fluorescent Host for Detection of Catechol and Dopamine

Vladimir Sindelar, Mabel A. Cejas, Françisco M. Raymo, Weizhong Chen, Samantha E. Parker & Angel E. Kaifer
Abstract The formation of a highly stable inclusion complex between 2,7-dimethyldiazapyrenium (Me2DAP2+) and the cucurbit[8]uril host (CB8) was demonstrated by X-ray crystallography; MALDI-TOF mass...

Registration Year

  • 2021
    47

Resource Types

  • Dataset
    41
  • Text
    4
  • Conference Paper
    2

Affiliations

  • Masaryk University
    47
  • Department of Physical and Technical Sciences
    11
  • University of Miami
    8
  • University of the Basque Country
    3
  • Central European Institute of Technology
    3
  • University of Vienna
    3
  • University of Oviedo
    2
  • Aarhus University
    2
  • University of Picardie Jules Verne
    2
  • German Center for Integrative Biodiversity Research
    2