Neuroimaging Findings in Racemose Neurocysticercosis: Case Description and Literature Review

Neurocysticercosis (NCC), the most common central nervous system (CNS) parasitic infection among the immunocompetent population can imitate every clinical feature of brain-diseases accurately, drawing attention away from the real culprit and delaying the proper treatment. There are two types of NCC, the parenchymal and the extraparenchymal form. The extraparenchymal NCC include the ventricular cysticercosis, the subarachnoid cysts including giant cysts or racemose cysticercosis with chronic meningitis, the spinal (intra- or extramedullary) cysticercosis and the ophthalmic cysticercosis. It is estimated that about 30% of epilepsy cases in endemic countries are due to NCC and especially the racemose NCC is more aggressive and associated with higher mortality rates. There is a significant heterogeneity in clinical phenotypes, regarding the racemose NCC, which depends on the parasite load and evolutionary stage in association with its location in CNS and the host’s immune response. Crucial for the management of the racemose NCC is the early recognition of the symptoms and the swift initiation of antiparasitic therapy with anti-inflammatory agents in combination with the shunt-insertion in cases of obstructive hydrocephalus. In view of the former considerations we conducted a narrative literature review on racemose NCC and described the diagnostic challenges of a relevant case that we had evaluated in our Department of Neurology.

Development of the Methodological Support for Future Social Sphere Specialists Bilingual Training

This article shows the structure and content of the methodological support for future social sphere specialists' bilingual training, developed by the Department of Social Technologies of the Zhytomyr Ivan Franko State University. To implement the principle of integrity, designing a system of bilingual professional training for future social sphere specialists, the process of bilingual teaching at the university was divided into stages: covering stage (I-IV semesters of studying), additional stage (V-VIII semesters of studying), parity stage (I-II semesters of master’s degree), evolutionary stage (III semester of master’s degree). Teaching materials have been developed to each of these stages that are generally formed a package of teaching materials for bilingual training of social sphere future specialists, featuring by variety, complexity, meeting the educational program of social sphere specialists training, covering all learning activities of students in bilingual teaching. It was proved that bilingual education is a necessary part of modern teaching system in higher educational institutions, which requires further studying and development from the scientific and methodological points of view. The key to successful implementation of bilingual training in the educational process must be carefully designed methodological support, which is the main component of the whole process of training in modern university. Implementation of bilingual training within university will provide conscious attitude of future social sphere specialist to the profession and expand opportunities for adaptation of future specialist in different social, informational, scientific realities.

VLA and NOEMA Views of Bok Globule CB 17: The Starless Nature of a Proposed First Hydrostatic Core Candidate

We use 3 mm continuum NOrthern Extended Millimeter Array and NH3 Very Large Array observations toward the First Hydrostatic Core (FHSC) candidate CB 17 MMS in order to reveal the dust structure and gas properties to 600–1100 au scales and to constrain its evolutionary stage. We do not detect any compact source at the previously identified 1.3 mm point source, despite expecting a minimum signal-to-noise ratio of 9. The gas traced by NH3 exhibits subsonic motions, with an average temperature of 10.4 K. A fit of the radial column density profile derived from the ammonia emission finds a flat inner region of radius ∼1800 au and a central density of ∼6 × 105 cm−3. Virial and density structure analysis reveals the core is marginally bound (α vir = 0.73). The region is entirely consistent with that of a young starless core, hence ruling out CB 17 MMS as an FHSC candidate. Additionally, the core exhibits a velocity gradient aligned with the major axis, showing an arc-like structure in the position–velocity diagram and an off-center region with high velocity dispersion, caused by two distinct velocity peaks. These features could be due to interactions with the nearby outflow, which appears to deflect due to the dense gas near the NH3 column density peak. We investigate the specific angular momentum profile of the starless core, finding that it aligns closely with previous studies of similar radial profiles in Class 0 sources. This similarity to more evolved objects suggests that motions at 1000 au scales are determined by large-scale dense cloud motions, and may be preserved throughout the early stages of star formation.

Sustainability and Re-invention: The Pot Drum in Sri Lanka

As indicated by archeological and literary sources, the pot drum has been a membranaphone of popular use since the Anuradhapura kingdom. It has been seen in various forms as Kumbha beraya, kala beraya, bummadiya or bimbisaka. This drum, being made out of clay in the shape of a gourd with an elongated neck or in that of a clay pot had a stretched skin of goat hide, monitor lizard hide or monkey hide. The use of these raw materials and how it brings harmony between the pottery industry and villagers in the processes of making the bummadiya is of importance. Through this research, understanding the Sri Lankan pot drum as a primary musical instrument and studying its historical and cultural aspects served as a foundation. After which, the objectives of identifying the role the pot-drum plays in sustainability were discussed. Finally, an investigation into an evolutionary stage of the pot drum in modern times, the thunpata beraya, was investigated. While this is a qualitative research, literary and archeological sources were used to collect data through discussions and field visits. The cultural texts and articles written throughout the ages on the Sri Lankan pot drum were used as secondary sources. Judgment sampling was the background behind the selection of data sources. Audio-visual methods were also used in collecting data. The human activity of using a material such as clay to express creativity in the form of music is of significance here.

Classical T Tauri stars: accretion, wind, dust

Classical T Tauri stars (CTTS) are at the early evolutionary stage when the processes of planet formation take place in the surrounding accretion disks. Most of the observed activity in CTTS is due to magnetospheric accretion and wind flows. Observations of the accreting gas flows and appearance of the line-dependent veiling of the photospheric spectrum in CTTS are considered. Evidence for the dusty wind causing the observed irregular variability of CTTS is presented. Photometric and spectroscopic monitoring of two CTTS, RY Tau and SU Aur, has been carried out atthe Crimean Astrophysical Observatory since 2013 aimed at studying the dynamics of accretion and wind flows on time scales from days to years. The observed variations in the dynamical parameters may be caused by changes in the accretion rate and in the global magnetic fields of CTTS.

Combining LOFAR and Apertif Data for Understanding the Life Cycle of Radio Galaxies

Active galactic nuclei (AGN) at the centres of galaxies can cycle between periods of activity and of quiescence. Characterising the duty-cycle of AGN is crucial for understanding their impact on the evolution of the host galaxy. For radio AGN, their evolutionary stage can be identified from a combination of morphological and spectral properties. We summarise the results we have obtained in the last few years by studying radio galaxies in various crucial phases of their lives, such as remnant and restarted sources. We used morphological information derived from LOw Frequency ARray (LOFAR) images at 150 MHz, combined with resolved spectral indices maps, obtained using recently released images at 1400 MHz from the APERture Tile In Focus (Apertif) phased-array feed system installed on the Westerbork Synthesis Radio Telescope. Our study, limited so far to the Lockman Hole region, has identified radio galaxies in the dying and restarted phases. We found large varieties in their properties, relevant for understanding their evolutionary stage. We started by quantifying their occurrences, the duration of the ‘on’ (active) and ‘off’ (dying) phase, and we compared the results with models of the evolution of radio galaxies. In addition to these extreme phases, the resolved spectral index images can also reveal interesting secrets about the evolution of apparently normal radio galaxies. The spectral information can be connected with, and used to improve, the Fanaroff–Riley classification, and we present one example of this, illustrating what the combination of the LOFAR and Apertif surveys now allow us to do routinely.

Regional Drivers of Digital Ecosystems’ Development of Industrial Enterprises

The key characteristics and technologies of the new industrial revolution create conditions for the emergence of new business models that implement not individual, but ecosystem-based development of industrial enterprises based on common digital platforms. Digital ecosystems of industrial enterprises are considered in the study as interdependent groups of economic actors that share digital platforms to achieve mutually beneficial goals. These business models characterize a new evolutionary stage in the development of industrial enterprises and reflect the transition from a linear to a multidimensional and distributed value chain involving partners, suppliers, consumers, and other participants. The paper highlights the effects generated as a result of the appearance of ecosystems in the industrial sphere for ecosystem centers (platform owners), participants, consumers of digital industrial ecosystems, as well as the regional economy. Based on the empirical analysis of the activities of industrial enterprises in the regions of the South of Russia, the “traces” of the digital ecosystem were found in several southern industrial enterprises. The study showed that among the enterprises under analysis, only two have a business model built following the principles of the ecosystem approach, and most industrial structures in the South of Russia tried combining technology and business processes into a joint information loop. It is proved that at present moment the company’s information circuit should cover not only employees of departments, equipment, and data but also customers, suppliers, and partners, combining them into a joint network, due to which the business becomes more adaptive. Taking this fact into consideration, a set of drivers and conditions for the ecosystem digital transformation of industrial enterprises is identified. Special attention is paid to regional drivers that allow developing a favorable environment for the emergence of digital ecosystems. It is shown that the core role in the number of activators of the formation of ecosystems in the industrial sphere is played by economic motivation.

The impact of winds on the spectral appearance of red supergiants

The rate at which mass is lost during the Red Supergiant evolutionary stage may strongly influence how the star appears. Though there have been many studies discussing how RSGs appear in the mid and far-infrared (IR) as a function of their mass-loss rate, to date there have been no such investigations at optical and near-IR wavelengths. In a preliminary study we construct model atmospheres for RSGs which include a wind, and use these models to compute synthetic spectra from the optical to the mid-infrared. The inclusion of a wind has two important effects. Firstly, higher mass-loss rates result in stronger absorption in the TiO bands, causing the star to appear as a later spectral type despite its effective temperature remaining constant. This explains the observed relation between spectral type, evolutionary stage and mid-IR excess, as well as the mismatch between temperatures derived from the optical and infrared. Secondly, the wind mimics many observed characteristics of a ‘MOLsphere’, potentially providing an explanation for the extended molecular zone inferred to exist around nearby RSGs. Thirdly, we show that wind fluctuations can explain the spectral variability of Betelgeuse during its recent dimming, without the need for dust.

Galaxy evolution on resolved scales: ageing and quenching in CALIFA

This work investigates the fundamental mechanism(s) that drive galaxy evolution in the Local Universe. By comparing two proxies of star-formation sensitive to different timescales, such as EW($\rm H\alpha$) and colours like g − r, one may distinguish between smooth secular evolution (ageing) and sudden changes (quenching) on the recent star formation history of galaxies. Building upon the results obtained from a former study based on 80.000 SDSS single-fibre measurements, we now focus on spatially-resolved (on kpc scales) galaxies, comparing with a sample of 637 nearby objects observed by the CALIFA survey. In general, galaxies cannot be characterised in terms of a single ‘evolutionary stage’. Individual regions within galaxies arrange along a relatively narrow ageing sequence, with some intrinsic scatter possibly due to their different evolutionary paths. These sequences, though, differ from one galaxy to another, although they are broadly consistent with the overall distribution found for the (central) SDSS spectra. We find evidence of recent quenching episodes (relatively blue colours and strong $\rm H\alpha$ absorption) in a small fraction of galaxies (most notably, low-mass ellipticals), on global scales and individual regions (particularly at high metallicity). However, we argue that most of the systems, over their entire extent, are compatible with a secular inside-out scenario, where the evolutionary stage correlates with both global (mass, morphology, and environment) as well as local (surface brightness and metallicity) properties.