Search Results - "Kopecky, Kamil"

Online blackmail of Czech children focused on so-called “sextortion” (analysis of culprit and victim behaviors) by Kopecký, Kamil

“…•There are very similar techniques used to blackmail children.•These techniques focuses on gaining confidence, luring out intimate material, and subsequent…”
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Czech Children and Facebook – A quantitative survey by Kopecky, Kamil

“…•Facebook is actively used by a large number of children younger than 13years – contrary to the terms of use of the social networks.•Most parents know that…”
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Misuse of web cameras to manipulate children within the so-called webcam trolling by Kopecký, Kamil

“…•The term ‘webcam trolling’ refers to a risky communication phenomenon associated with the misuse of a web camera.•Numerous authors warned of the risks…”
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Cyberbullying, cyber aggression and their impact on the victim – The teacher by Kopecký, Kamil, Szotkowski, René

“…•An experienced cyber aggression or longer and more intense cyberbullying has demonstrable impacts on teachers.•The longer the attack on the victim lasts, the…”
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Children and youth safety on the Internet: Experiences from Czech Republic and Poland by Tomczyk, Lukasz, Kopecky, Kamil

“…•A lot of young people have problems with control of online information, which were uploaded to websites.•The online risky behavior of children is connected…”
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Sharing images or videos of minors online: Validation of the Sharenting Evaluation Scale (SES) by Romero-Rodríguez, José-M., Kopecký, Kamil, García-González, Abel, Gómez-García, Gerardo

“…•Sharenting is a popular practice among adults.•The sharing of images or videos is not only limited to one's own children.•The SES showed good psychometric…”
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Behaviour of Children and Adolescents and the Use of Mobile Phones in Primary Schools in the Czech Republic by Kopecký, Kamil, Fernández-Martín, Francisco-Domingo, Szotkowski, René, Gómez-García, Gerardo, Mikulcová, Klára

“…Today’s young people spend most of their time in contact with mobile devices. Their excessive use carries many risks, such as addiction, cyberbullying and…”
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Specifics of Cyberbullying of Teachers in Czech Schools - A National Research by Kopecký, Kamil, Szotkowski, René

“…This paper focuses on the results of the national research of cyberbullying of Czech teachers, which was realized in year 2016 in the entire Czech Republic…”
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Magnesium Azaphthalocyanines: An Emerging Family of Excellent Red-Emitting Fluorophores by Zimcik, Petr, Novakova, Veronika, Kopecky, Kamil, Miletin, Miroslav, Uslu Kobak, Rabia Zeynep, Svandrlikova, Eva, Váchová, Lenka, Lang, Kamil

“…Magnesium(II), zinc(II), and metal-free phthalocyanines (Pcs) and azaphthalocyanines (AzaPcs) containing alkylsulfanyl, aryloxy, and dialkylamino peripheral…”
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Disinformation and Its Negative Impact in the Changing World of Mass Media (Specifically Focused on the COVID-19 Pandemic in the Czech Republic) by Kopecký, Kamil, Voráč, Dominik, Mikulcová, Klára, Krejčí, Veronika, García, Gerardo Gómez

“…Disinformation in the online world has been recently spreading across the world, especially in relation to major global issues (the COVID-19 pandemic,…”
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Digital fatigue in university students as a consequence of online learning during the Covid-19 pandemic by Romero-Rodríguez, José-María, Hinojo-Lucena, Francisco-Javier, Kopecký, Kamil, García-González, Abel

“…El uso continuo de los sistemas de videoconferencia para llevar a cabo el proceso de enseñanza-aprendizaje en las instituciones de educación superior, durante…”
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Azaphthalocyanines: Red Fluorescent Probes for Cations by Novakova, Veronika, Lochman, Lukáš, Zajícová, Ivana, Kopecky, Kamil, Miletin, Miroslav, Lang, Kamil, Kirakci, Kaplan, Zimcik, Petr

“…Light up a red crown: Chelation of sodium and potassium cations by aza[15]crown‐5 switches on strong red fluorescence in azaphthalocyanines. This is due to an…”
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Comparison of aggregation properties and photodynamic activity of phthalocyanines and azaphthalocyanines by Kostka, Miroslav, Zimcik, Petr, Miletin, Miroslav, Klemera, Petr, Kopecky, Kamil, Musil, Zbynek

“…Phthalocyanines (Pc) and their aza-analogues azaphthalocyanines (AzaPc) (tetrapyrazinoporphyrazines) with eight n-octylsulfanyl or tert-butylsulfanyl…”
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Cationic azaphthalocyanines bearing aliphatic tertiary amino substituents—Synthesis, singlet oxygen production and spectroscopic studies by Zimcik, Petr, Miletin, Miroslav, Musil, Zbynek, Kopecky, Kamil, Kubza, Lukas, Brault, Daniel

“…New cationic zinc azaphthalocyanines (AzaPc) were prepared using a statistical method of synthesis starting from…”
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Ultrafast intramolecular charge transfer in tetrapyrazinoporphyrazines controls the quantum yields of fluorescence and singlet oxygen by Novakova, Veronika, Zimcik, Petr, Miletin, Miroslav, Vachova, Lenka, Kopecky, Kamil, Lang, Kamil, Chábera, Pavel, Polívka, Tomás

“…A series of octasubstituted zinc(II) tetrapyrazinoporphyrazines (TPyzPz), aza-analogues of phthalocyanines, differing in the number of peripheral…”
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Synthesis of Unsymmetrical Alkyloxy/Aryloxy-azaphthalocyanines Based on a Transetherification Reaction by Novakova, Veronika, Miletin, Miroslav, Kopecky, Kamil, Franzová, Šárka, Zimcik, Petr

“…An approach leading to unsymmetrical azaphthalocyanines (AzaPcs) bearing one aryloxy and seven butoxy substituents on the periphery is described. Several…”
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The phenomenon of sharenting and its risks in the online environment. Experiences from Czech Republic and Spain by Kopecky, Kamil, Szotkowski, Rene, Aznar-Díaz, Inmaculada, Romero-Rodríguez, José-María

“…•Child's right to privacy and protection clashes with the right of parents to share these information with the public.•70–80% of parent in Span and Czech…”
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Efficient Synthesis of a Wide‐Range Absorbing Azaphthalocyanine Dark Quencher and Its Application to Dual‐Labeled Oligonucleotide Probes for Quantitative Real‐Time Polymerase Chain Reactions by Demuth, Jiri, Kucera, Radim, Kopecky, Kamil, Havlínová, Zuzana, Libra, Antonín, Novakova, Veronika, Miletin, Miroslav, Zimcik, Petr

“…Unsymmetrical dialkylamino‐substituted zinc azaphthalocyanine (AzaPc) exhibits unique spectral and photophysical properties for dark quenchers of fluorescence…”
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Red-Emitting Dyes with Photophysical and Photochemical Properties Controlled by pH by Novakova, Veronika, Miletin, Miroslav, Kopecky, Kamil, Zimcik, Petr

“…New unsymmetrical zinc azaphthalocyanines, bearing one substituted aniline as a peripheral substituent, were prepared by using a statistical condensation…”
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The role of HEXACO personality traits in different kinds of sexting:A cross-cultural study in 10 countries by Morelli, Mara, Chirumbolo, Antonio, Bianchi, Dora, Baiocco, Roberto, Cattelino, Elena, Laghi, Fiorenzo, Sorokowski, Piotr, Misiak, Michal, Dziekan, Martyna, Hudson, Heather, Marshall, Alexandra, Nguyen, Thanh Truc T., Mark, Lauren, Kopecky, Kamil, Szotkowski, René, Demirtaş, Ezgi Toplu, Van Ouytsel, Joris, Ponnet, Koen, Walrave, Michel, Zhu, Tingshao, Chen, Ya, Zhao, Nan, Liu, Xiaoqian, Voiskounsky, Alexander, Bogacheva, Nataliya, Ioannou, Maria, Synnott, John, Tzani-Pepelasi, Kalliopi, Balakrishnan, Vimala, Okumu, Moses, Small, Eusebius, Nikolova, Silviya Pavlova, Drouin, Michelle

“…Sexting has been defined as sharing sexually suggestive content (i.e., sexts) via Internet or smartphone. To date, only a few studies investigated the role of…”
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