This article focuses on how Facebook users understand and adapt to or resist recently increasing intensity in Facebook content-curating practices in pages organized around geopolitical satire memes generally known as “Countryball comics.” Participants attach a ludic, nonserious discursive and communal ethos to potentially offensive memes, by which they create a type of sociality that faces punitive actions from Facebook (content deletion and publishing suspensions). Following meta-level discussions about correctness, appropriateness, and acceptability, participants feel compelled to adjust their communicative behavior in ways ranging from self-censorship to altering communicative practices native to such meme pages. Moreover, participants construe Facebook as a composite human (Facebook users and content moderators) and algorithm-driven nonhuman (automated content recognition tools and filters) entity actively involved and embedded in everyday communication. Drawing on posthumanist sociolinguistics and applied linguistics (Pennycook 2016, 2018), the article revisits the traditional notion of “communicative competence” to account for the dynamic interplay between dispersed, disembodied, and (non-)human interactants, environment, and artifacts.

We developed the Short Maximization Inventory (SMI) by shortening the Maximization Inventory (Turner, Rim, Betz & Nygren, 2012) from 34 items to 15 items. Using the Item Response Theory framework, we identified and removed the items of the Maximization Inventory that contributed least to the performance of the original scale. The construct validity assessed for SMI is similar to the full MI and is in line with the predictions from the literature: the Satisficing subscale is positively related to the indices of well-being, while the Decision Difficulty and Alternative Search subscales are negatively related to well-being. The new scale retains the good psychometric properties of the original scale. Furthermore, its brevity allows researchers to use the scale in studies in which maximization is not the primary focus. Although the SMI lacks the “High Standards” subscale, as did the original MI, we believe that SMI is a step towards developing a reliable and conceptually sound measure of maximizing that can be used in various research designs.

The ongoing energy transition challenges the stability of the electrical power system. Stable operation of the electrical power grid requires both the voltage (amplitude) and the frequency to stay within operational bounds. While much research has focused on frequency dynamics and stability, the voltage dynamics has been neglected. Here, we study frequency and voltage stability in the case of simple networks via linear stability and bulk analysis. In particular, our linear stability analysis of the network shows that the frequency secondary control guarantees the stability of a particular electric network. Even more interesting, while we only consider secondary frequency control, we observe a stabilising effect on the voltage dynamics, especially in our numerical bulk analysis.

We prove a general principle satisfied by weakly precompact sets of Lipschitz-free spaces. By this principle, certain infinite dimensional phenomena in Lipschitz-free spaces over general metric spaces may be reduced to the same phenomena in free spaces over their compact subsets. As easy consequences we derive several new and some known results. The main new results are: $\mathcal {F}(X)$ is weakly sequentially complete for every superreflexive Banach space $X$, and $\mathcal {F}(M)$ has the Schur property and the approximation property for every scattered complete metric space $M$.

In this note we prove that the Kalton interlaced graphs do not equi-coarsely embed into the James space ${\mathcal{J}}$ nor into its dual ${\mathcal{J}}^{\ast }$. It is a particular case of a more general result on the non-equi-coarse embeddability of the Kalton graphs into quasi-reflexive spaces with a special asymptotic structure. This allows us to exhibit a coarse invariant for Banach spaces, namely the non-equi-coarse embeddability of this family of graphs, which is very close to but different from the celebrated property ${\mathcal{Q}}$ of Kalton. We conclude with a remark on the coarse geometry of the James tree space ${\mathcal{J}}{\mathcal{T}}$ and of its predual.

This article discusses internet memes in their capacity to prompt affective responses on social media in the aftermath of the migrant crisis. The focus is on Facebook pages devoted to geopolitical satire meme-comics known as countryballs and their uptake with regard to the proposed migrant relocation mechanisms. Engagement with internet memes reveals a multilayered complexity behind what is often simplistically portrayed as pro- or anti-migrant sentiment. In order to account for this complexity, the paper combines Gilbert Simondon's theory of individuation with Mikhail Bakhtin's notion of the chronotope currently developed in interactional sociolinguistics along the lines of symbolic interactionism. Finally, this article shows that memes are not a mere product of participatory culture, but rather a powerful instigator of technosocial and often heteroglossic practices that co-organize social life in the new polycentric collectivities appearing on social media. (Chronotope, individuation, internet memes, countryballs, Facebook, identity)*

Brilliant cresyl blue (BCB) vital labelling is a powerful method for analyzing the quality of porcine cumulus–oocyte complexes. Our aim was to investigate the correlation between the selection of porcine oocytes using BCB labelling and selected intranuclear characteristics of porcine oocytes and parthenotes. Moreover, BCB labelling was correlated with the diameter of the oocyte and the developmental potential of the parthenotes. The following methods were used: BCB labelling, measurement of the diameter of the oocyte, parthenogenetic activation, immunocytochemistry, transmission electron microscopy, enucleation and relative protein concentration (RPC) analysis. We determined that the diameter of the oocytes in the BCB-positive (BCB+) group was significantly larger than in the BCB-negative (BCB−) group. Immediately after oocyte selection according to BCB labelling, we found significant difference in chromatin configuration between the analyzed groups. BCB+ oocytes were significantly better at maturation than BCB− oocytes. BCB+ embryos were significantly more competent at cleaving and in their ability to reach the blastocyst stage than BCB− embryos. Ultrastructural analyses showed that the formation of active nucleoli in the BCB+ group started at the 8-cell stage. Conversely, most BCB− embryos at the 8-cell and 16-cell stages were fragmented. No statistically significant difference in RPC in nucleolus precursor bodies (NPBs) between BCB+ and BCB− oocytes was found. We can conclude that BCB labelling could be suitable for assessing the quality of porcine oocytes. Moreover, the evaluation of RPC indicates that the quantitative content of proteins in NPB is already established in growing oocytes.

Exceptionally dense titanium dioxide (TiO2) films were prepared via dip coating from a sol containing poly(hexafluorobutyl methacrylate) as the structure-directing agent. The films were grown on glass, F-doped SnO2, and crystalline silicon (111) faces, either pure or with a thin layer of SiO2. The TiO2 films cover perfectly even rough surfaces, which was ascribed to thixotropic properties of the precursor gel. The films provide antireflection function to crystalline Si wafers for photovoltaic applications. The optical reflectance in visible to near-infrared (NIR) wave lengths region is considerably smaller for Si wafers covered by TiO2/SiO2 film compared with that of SiO2/Si. The dense TiO2 films are amorphous with small amount of anatase and monoclinic TiO2(B). These two phases withstand calcination at 900 °C in films deposited on Si. For comparison, porous TiO2 films were grown by the same dip-coating protocol, but with alternative organic additives, either polymers or ionic liquids.

Aggregated systems of silver (Ag) and gold (Au) nanoparticles coated with cationic polythiophene were prepared, which showed optical properties typical for strongly coupled plasmonic excitations. The procedure allowed tune up the three-dimensional arrangement of nanoparticles assembly for achieving strong SERS effect at the excitation wavelength depending on the polymer concentration. By combination with an anionic derivative of polythiophene thin multilayer films composed of alternating anionic and cationic polythiophene with mutually interacting plasmonic Au nanoparticles were successfully prepared using layer-by-layer deposition.

Transportation capacities belong to the key factors of the response to a major incident. Available resources, both in terms of personnel and equipment, must be transported, usually by ambulances, to the incident location. In the other direction, casualties must be transported to hospitals and other health care facilities for further treatment. For this reason, the efficiency of the response is greatly determined by ambulance travel times and the ability of health care facilities to absorb large numbers of patients. We propose methods to compute the travel times to and from the incident location based on a classified road network. The methods take into account different attributes that depend on ambulance type and capacity, road quality, time of day, weather or actual traffic density. Correctly computed travel times are crucial not only for optimal deployment of all resources within the analyzed region, but also for the evaluation of the readiness of the emergency health care system for a major incident. We have included the methods in an agent-based simulation of transport during the response. From the simulation outputs and with the help of geographical information systems and information visualization methods we have synthesized maps that represent the capability of a region to absorb a major incident defined by a scenario. When combined with risk maps and maps of population density the synthesized maps allow emergency management authorities to find critical points and gaps in the emergency health care service.