Genesis Processes Research Articles

Cortical developmental malformations and epilepsy

Cortical developmental malformations (CDM) include a large group of heterogeneous brain formation disorders occurring in prenatal period. Current classifications comprise the underlying processes in CDM genesis. The article provides recent conceptions about CDM types such as gray-matter heterotopia and focal cortical dysplasia, which commonly cause epilepsy, often resistant to drug therapy. Rapid advances in improving neuroimaging techniques and molecular genetics in recent years have substantially increased the number of recognized CDM forms.

Sociocultural influences on primary teachers implementing TouchTimes

In this article, I share case studies of two primary school teachers (K–5) in British Columbia, Canada who were interviewed after their implementation of <i>TouchTimes</i> (hereafter, TT) in their mathematics classes. TT is a multi-touch digital application that is designed for users to create and interact with multiplicative situations kinaesthetically through their fingertips on an iPad screen. Using the theoretical constructs of double instrumental genesis, instrumental distance and didactical landmarks, I identify and highlight sociocultural influences described by each of the teachers as being impactful on their integration of this digital technology into their mathematics teaching. These influences included other teachers and the researchers who were part of a larger research project involving TT, as well as the students in each of the case study teachers’ classes. My analysis indicates the multi-faceted and complex nature of the process of double instrumental genesis that teachers undergo when implementing digital technology and how sociocultural factors impact teachers’ personal and professional instrumental geneses.

Iconography of the Mythological Characters in the Divine Comedy Manuscripts of the XIV-XV Centuries: Functions and Iconographical Sources

The history of illustration of Dante’s Divine Comedy in the 14th-15th centuries rarely attracts the attention of researchers. Nevertheless, a careful analysis of some manuscripts would clarify the genesis process of specific iconographic schemes within the framework of a very specific task: illustrating a text replete with figures of speech and references to ancient sources that were often unknown to the iconography designer. This contribute is devoted to the iconography of mythological characters found in Dante’s text and their visual sources based on a few manuscripts of the Divine Comedy dated from mid-14th and 15th centuries, six of which are fully illustrated.

Le alternative prese sul serio. Filosofia sociale, metamorfosi e mutualismo produttivo

The article claims for social philosophy a public function similar to that claimed in the sociological field by Michael Burawoy. Canetti’s concept of metamorphosis is the best candidate to translate the immanent and heretical normativity of social philosophy: once summarized the core features of this concept and its link with social philosophy, I will focus on a particular case of real utopias: namely, the recovered companies by workers. After presenting the main characteristics of the cooperative recovery of companies in crisis or at risk of delocalization, the contribution will resume the different processes of genesis of recovered enterprises and, at the same time, the main indicators that allow us to interpret them as garrisons of labour democratization and, in some cases, as real actors in processes of social metamorphosis.

Multi-stage magmatism and Sn-polymetallic mineralization in the Shuicheng Region, SW China

The economically important tin‑tungsten mineralization in southwestern China has attracted much interest in recent years, yet its age, tectonic setting, and genetic relationship to the host granites remain uncertain in most regions. Our focus in this study is the Shuicheng tin-polymetallic deposit, situated in the western sector of the Diantan Batholith, within the northern Tengchong Block. The granites in this area consist of two intrusive units, i.e., 1) biotite monzogranite (T1), with LA-ICP-MS zircon UPb ages ranging from 76.88 ± 0.43 Ma to 74.69 ± 0.57 Ma, whole-rock εNd(t) values ranging from −9.75 to −8.11, and zircon εHf(t) values from −12.19 to −8.85; and 2) alkali-feldspar granite (T2), with an LA-ICP-MS zircon UPb age of 52.16 ± 0.23 Ma, whole-rock εNd(t) values of −10.15 to −8.25, and zircon εHf(t) values of −9.64 to −8.06. These two intrusive events have been linked to prolonged low-angle subduction and retreat of the subducting Neo-Tethys Ocean Plate, respectively. The Shuicheng granites exhibit high concentrations of SiO2 and Al2O3, contrasted with low levels of FeOT, CaO, MgO, TiO2, and P2O5, suggesting that they are highly fractionated S-type granites. High abundances of Rb, K, U, and Hf, along with low contents of Ba, Sr, and Ti, further indicate significant fractionation and crystallization processes during magma evolution. Importantly, a transition from purely magmatic conditions to a magmatic-hydrothermal state occurred during the latter stages of magmatic evolution. This transition, associated with an amplified potential for tin mineralization, provides fresh insight into the role of magmatic processes in ore genesis, enriching our understanding of the tin‑tungsten mineralization history of the Tengchong region.

The Average Symmetry Index of Minerals Co-Varies with Their Hydrogen Content, Rarity, and Paragenetic Mode

Variations in the Dolivo-Dobrovol’sky symmetry index for minerals through time reveal several factors that influence the emergence of crystalline symmetry in natural processes. Of special interest in this regard are the numerous paragenetic modes—different processes of mineral genesis that reflect changes in physical, chemical, and ultimately biological environments that foster the emergence of new mineral species. Here, we consider the roles of hydrogen content, rarity, formation temperature and pressure, and age on the average symmetry of minerals from 57 different modes of formation (i.e., paragenetic modes). We find four significant trends in the average mineral symmetry index for all minerals in each paragenetic mode: specifically, this average index is (1) lower for minerals with greater hydrogen content; (2) greater for minerals formed at higher pressure; (3) lower for minerals of greater rarity; and (4) greater for older paragenetic modes. These findings elucidate some of the intricate relationships among paragenetic modes, average mineral attributes, and the Dolivo-Dobrovol’sky symmetry index, providing insights into the geological processes governing mineral formation.

Origin and properties of kaolinites from soils of a toposequence in Southern Brazil

ABSTRACT Kaolinite is the main clay mineral in most soils around the world and has been widely used for industrial purposes. This research aimed to study chemical, morphological and crystallographic characteristics of kaolinite, and establish the origin of kaolinitic samples on Serra do Mar and kaolinitic layers on peatlands, located at Southern Brazil. Samples were collected on different geomorphological positions: two samples at Serra do Mar (kaolinitic saprolite – SAP, and kaolinitic layers - KL); and two cores at the peatland with Sapric Histosols from Quaternary sedimentary basin. Granulometry and total organic carbon (TOC) were determined in soil samples. Kaolinite in silt and clay fractions was studied by chemical extractions, X-ray diffraction (XRD), thermal analysis (DTA/TG), and scanning electron microscopy with energy dispersive spectroscopy – SEM/EDS. Chemical and mineralogical characteristics of kaolinite were divided into two groups, according to the particle size and the location of the deposit in the relief. Silt fraction: i) SAP – genesis mainly derived from mica weathering; ii) peatland, containing pseudomorph crystals smaller than those found in Serra do Mar; Clay fraction: i) Serra do Mar – there was a larger contribution of K-feldspar weathering in the genesis of kaolinite from KL in relation to SAP; ii) peatland – the stronger weathering and the hydromorphic conditions resulted in less neoformed crystalline kaolinites. For both environments, the substitution of Al 3+ by Fe 3+ into the octahedral sheet led to a reduction in the mineral thickness and also increased the occurrence of structural deformations in clay kaolinite. Kaolinite in peatland is a combination of the following genesis processes: transportation from Serra do Mar (mainly in the silt fraction) and; formation in situ through neogenesis process (dominant in the clay fraction).

Oil-source correlation and Paleozoic source rock analysis in the Siwa Basin, Western Desert: Insights from well-logs, Rock-Eval pyrolysis, and biomarker data

Understanding the origins of potential source rocks and unraveling the intricate connections between reservoir oils and their source formations in the Siwa Basin (Western Desert, Egypt) necessitate a thorough oil-source correlation investigation. This objective is achieved through a meticulous analysis of well-log responses, Rock-Eval pyrolysis, and biomarker data. The analysis of Total Organic Carbon across 31 samples representing Paleozoic formations in the Siwa A-1X well reveals a spectrum of organic richness ranging from 0.17 wt% to 2.04 wt%, thereby highlighting diverse levels of organic content and the presence of both Type II and Type III kerogen. Examination of the fingerprint characteristics of eight samples from the well suggests that the Dhiffah Formation comprises a blend of terrestrial and marine organic matter. Notably, a significant contribution from more oxidized residual organic matter and gas-prone Type III kerogen is observed. Contrarily, the Desouky and Zeitoun formations exhibit mixed organic matter indicative of a transitional environment, and thus featuring a pronounced marine influence within a more reducing setting, which is associated with Type II kerogen. Through analysis of five oil samples from different wells—SIWA L-1X, SIWA R-3X, SIWA D-1X, PTAH 5X, and PTAH 6X, it is evident that terrestrial organic matter, augmented by considerable marine input, was deposited in an oxidizing environment, and contains Type III kerogen. Geochemical scrutiny confirms the coexistence of mixed terrestrial organic matter within varying redox environments. Noteworthy is the uniformity of identified kerogen Types II and III across all samples, known to have potential for hydrocarbon generation. The discovery presented in this paper unveils captivating prospects concerning the genesis of oil in the Jurassic Safa reservoir, suggesting potential links to Paleozoic sources or even originating from the Safa Member itself. These revelations mark a substantial advancement in understanding source rock dynamics and their intricate relationship with reservoir oils within the Siwa Basin. By illuminating the processes of hydrocarbon genesis in the region, this study significantly enriches our knowledge base.

The Molecular Profile of Soil Microbial Communities Inhabiting a Cambrian Host Rock.

The process of soil genesis unfolds as pioneering microbial communities colonize mineral substrates, enriching them with biomolecules released from bedrock. The resultant intricate surface units emerge from a complex interplay among microbiota and plant communities. Under these conditions, host rocks undergo initial weathering through microbial activity, rendering them far from pristine and challenging the quest for biomarkers in ancient sedimentary rocks. In addressing this challenge, a comprehensive analysis utilizing Gas Chromatography Mass Spectrometry (GC-MS) and Time-of-Flight Secondary Ion Mass Spectrometry (ToF-SIMS) was conducted on a 520-Ma-old Cambrian rock. This investigation revealed a diverse molecular assemblage with comprising alkanols, sterols, fatty acids, glycerolipids, wax esters, and nitrogen-bearing compounds. Notably, elevated levels of bacterial C16, C18 and C14 fatty acids, iso and anteiso methyl-branched fatty acids, as well as fungal sterols, long-chained fatty acids, and alcohols, consistently align with a consortium of bacteria and fungi accessing complex organic matter within a soil-type ecosystem. The prominence of bacterial and fungal lipids alongside maturity indicators denotes derivation from heterotrophic activity rather than ancient preservation or marine sources. Moreover, the identification of long-chain (>C22) n-alkanols, even-carbon-numbered long chain (>C20) fatty acids, and campesterol, as well as stigmastanol, provides confirmation of plant residue inputs. Furthermore, findings highlight the ability of contemporary soil microbiota to inhabit rocky substrates actively, requiring strict contamination controls when evaluating ancient molecular biosignatures or extraterrestrial materials collected.

Периодизация социокультурного генезиса российского частного школьного образования (XI век – 20-е годы XXI века)

The study aims to present the periodization of the sociocultural genesis of private school education in Russia as an integrated process, combining historical and modern periods. The article addresses the comprehensive sociocultural study of the processes of historical genesis and modern development of the Russian non-state school as a pedagogical phenomenon to propose the periodization of its evolution. The scientific novelty lies in: the systematization of the historical and modern processes of private school education development, presented in the form of periodization, with the key sociocultural factor of influence, taken as its criterion; creating a holistic representation of the Russian private school genesis by combining in the proposed periodization all the sociocultural stages of its formation and development, starting from its inception in the 11th century and including the current period of its development; identifying the pedagogical specifics of the modern period of private schools development based on a theoretical analysis of the latest scientific and pedagogical publications devoted to their educational activities; introducing new information into the scientific discourse of pedagogical research, reflecting the analytics and statistics of modern private school education. As a result of the study, according to the major factor of sociocultural influence specified in the research, five periods of historical and pedagogical development of the Russian private school were defined, with all the stages of its historical genesis and modern development covered. The author has concluded that the complex socio-cultural influence of the society and state is the major factor determining the private school evolution and its pedagogical specifics in the modern period.

Ayurvedic approach to Embryogenesis: Exploring Fetal Development

Background: Embryology in Ayurveda is the study of embryonic and fetal development using Ayurvedic principles. Ayurveda describes the conception process, fetal development, and the effect of Doshas (biological energies) on the fetus's growth and health. Ayurvedic embryology emphasizes the mother's health and well-being during pregnancy, as well as the effect of the father's Doshas on the child's genetic makeup. It also includes prenatal care guidelines, such as diet, lifestyle, and herbal remedies, to help the fetus develop normally. Aims: This review applies Ayurvedic concepts of Grabhasharir to embryology, analyzing the genesis of progeny using modern scientific knowledge. Materials and Methods: Brihattrayee along with other relevant literature were reviewed to identify the hidden core of embryology described in chapters about Garbhasharir. Results: The Ayurvedic essence outlines two types of processes in progeny genesis: dependent and independent, with dependent processes modifying and independent processes unaffected by parental efforts. Conclusion: Even though the embryology concepts outlined in Ayurveda extend back millennia, they are still relevant in today's scientific world when properly interpreted.

Cholesterol and Lipid Rafts in the Biogenesis of Amyloid-β Protein and Alzheimer's Disease.

Cholesterol has been conjectured to be a modulator of the amyloid cascade, the mechanism that produces the amyloid-β (Aβ) peptides implicated in the onset of Alzheimer's disease. We propose that cholesterol impacts the genesis of Aβ not through direct interaction with proteins in the bilayer, but indirectly by inducing the liquid-ordered phase and accompanying liquid-liquid phase separations, which partition proteins in the amyloid cascade to different lipid domains and ultimately to different endocytotic pathways. We explore the full process of Aβ genesis in the context of liquid-ordered phases induced by cholesterol, including protein partitioning into lipid domains, mechanisms of endocytosis experienced by lipid domains and secretases, and pH-controlled activation of amyloid precursor protein secretases in specific endocytotic environments. Outstanding questions on the essential role of cholesterol in the amyloid cascade are identified for future studies.

Impact of the Upper-Tropospheric Cold Low on the Genesis of Typhoon Hagupit (2020)

Abstract Typhoon Hagupit (2020), which formed unexpectedly close to land, posed great challenges for forecasters. During its genesis, there was a westward-moving upper-tropospheric cold low (UTCL) to its north. This study investigated the impact of this UTCL on the genesis process using numerical simulations. In the semi-idealized experiment with this UTCL removed (run-Rcold), pre-Hagupit develops faster, but its track drifts southward in the later stage compared with the control experiment (run-cnl). In the experiment with enhanced UTCL (run-Ecold), the simulated track is similar to that in run-cnl, but pre-Hagupit does not develop into a tropical storm. In run-cnl and run-Ecold, the environmental vertical wind shear is larger than that in run-Rcold in the first 2 days, and the simulated pre-Hagupit experiences two prominent dry-air intrusions in the middle and upper troposphere. At the second intrusion, when the weakened UTCL has moved within 2° of pre-Hagupit, the convection in both experiments decays significantly, and the development of the midlevel vortex begins to lag behind that in run-Rcold, and so does the vertical alignment of the low- and midlevel vortices. The UTCL influences the movement of pre-Hagupit by modifying the large-scale steering flows, especially those above 600 hPa. In run-Rcold, due to the absence of the northward component of wind fields related to the UTCL circulation, pre-Hagupit starts to move west-northwestward instead of northwestward as in run-cnl and run-Ecold. Significance Statement Typhoon Hagupit (2020) got named near the 24-h warning line of China. TCs crossing this line are considered to have a significant impact on China within 24 h, or may make landfall within 24 h. After formation, Hagupit rapidly intensified to its peak intensity of 42 m s−1 in 48 h, and made landfall in Zhejiang Province at severe typhoon strength after another 8 h. Both the unexpected genesis and the rapid intensification of Hagupit posed great challenges for forecasters and deserve further investigation. This study focused on the genesis process. We noticed that there was a westward-moving upper-tropospheric cold low (UTCL) in the north during the formation of Hagupit. We have conducted three numerical experiments to investigate the impact of this UTCL on the genesis of Hagupit, and found that the UTCL is an important factor affecting the genesis process. It is detrimental to the vortex development. If the UTCL is removed, Hagupit will develop into a tropical storm more quickly, but its potential landfall point of Hagupit will shift from the southeast coast of China to the Philippines.

Successional development of the phototrophic community in biological soil crusts, along with soil formation on Holocene deposits at the Baltic Sea coast

Harsh environmental conditions form habitats colonized by specialized primary microbial colonizers, e.g., biological soil crusts (biocrusts). These cryptogamic communities are well studied in drylands but much less in temperate coastal dunes, where they play a crucial role in ecological functions. Following two dune chronosequences, this study highlights the successional development of the biocrust’s community composition on the Baltic Sea coast. A vegetation survey, followed by morphological species determination, was conducted. Sediment/soil cores of the different dune types were analyzed to uncover the potential impacts of the biocrust community on initial soil formation processes, with special emphasis on biogeochemical phosphorous (P) transformations. Biocrust succession was characterized by a dune type-specific community composition, shifting from thinner algae-dominated biocrusts in dynamic dunes to more stable moss-dominated biocrusts in mature dunes. The change in the biocrust community structure was accompanied by an increase in Chl a, water, and organic matter content. In total, 25 algal and cyanobacterial species, 16 mosses, and 26 lichens across all sampling sites were determined. The pedological characterization of these cores elucidated initial processes of soil genesis, such as decalcification, acidification, and the accumulation of organic matter with dune and biocrust development. Furthermore, the chemistry of iron (Fe)-containing compounds such as the Fedithionite/Fetotal ratios confirmed mineral weathering and the beginning of soil profile development. The biocrusts accumulated P over time, while the P content in the underlying sediment did not change. That implies that biocrusts take up P from the geological parent material in the dunes, thereby accumulating available P in the ecosystem, which gets transferred into subsoil horizons through leaching or redeposition. The relative proportion of the bioavailable P pool (56% to 74% of Pt) increased with dune succession. That happened at the expense of more stable bound P, which was transformed into labile P. Thus, the level of plant available P along the dune chronosequences increased due to the microbial activity of the biocrust organisms. It can be concluded that biocrusts of temperate coastal dunes play a crucial role in maintaining their habitat by accumulating nutrients and organic matter, supporting soil development and subsequent vegetation.

Instrumentation et instrumentalisation du document vidéo en classe de FLE : exemple d’une séquence didactique

Instrumentation and Instrumentalization of The Video Document in FFL Class: Example of a didactic sequence
 The primary objective of the research is to showcase, by employing a didacticization instance involving an authentic video document, the considerable significance, and the valuable contributions of the theory of instrumental genesis in comprehending and analyzing this intricate process. This study accurately delineates the stages involved in didacticization, emphasizing that it results from a dual-faceted process of instrumentalization and instrumentation. Within the realm of instrumentalization, the didactician strategically appropriates the video document for didactic purposes by activating their cognitive schemas. This transformative act turns the video into an instrument – a didactic sequence laden with the teaching strategies envisioned by the designer. Various factors stimulate the activation of these schemas within the designer's strategic repertoire, including age, didactic representations, experiential background, and personal history. The intricate interplay of these elements shapes the didacticization process, highlighting the dynamic nature of instructional design. Simultaneously, the research delves into the instrumentation process, which is contingent upon the inherent nature and content of the video document, as well as the educational level and sociocultural characteristics of the learners. This dual-process framework sheds light on the multifaceted dimensions of didacticization, encompassing both the cognitive processes of the didactician and the contextual elements influencing the instructional material. By elucidating these two interconnected processes, the research aims to raise awareness among didacticians, fostering introspection and self-evaluation for designers of didactic sequences utilizing video support. In an era marked by the diversification and modernization of methods for creating and disseminating video materials, the study posits that its analytical approach to the process of instrumental genesis remains pertinent and applicable, even in the context of contemporary distribution formats such as videos generated by artificial intelligence. Moreover, the research contends that within the domain of FFL (French as a Foreign Language) didactics, this theoretical framework can be harnessed to scrutinize the learner's assimilation process of the didactic sequence and the ensuing knowledge acquisition after the completion of the instructional activity. In essence, the research underscores the enduring relevance and adaptability of the theory of instrumental genesis in the evolving landscape of instructional design and technology.

SINE-derived satellites in scaled reptiles

BackgroundThe genomes of many eukaryotes contain DNA repeats in the form of both tandem and interspersed elements with distinct structure, evolutionary histories, and mechanisms of emergence and amplification. Although there is considerable knowledge regarding their diversity, there is little evidence directly linking these two types.ResultsDifferent tandem repeats derived from portions of short interspersed elements (SINEs) belonging to different families were identified in 56 genomes of squamate reptiles. All loci of SINE-derived satellites (sSats) were thoroughly analyzed. Snake sSats exhibited high similarity in both structure and copy number, while other taxa may have highly diverse (geckos), rare (Darevskia lizards), or missing sSats (agamid lizards). Similar to most satellites associated with heterochromatin, sSats are likely linked to subtelomeric chromosomal regions.ConclusionsDiscovered tandem repeats derived from SINEs exhibit satellite-like properties, although they have not amplified to the same degree as typical satellites. The autonomous emergence of distinct sSats from diverse SINE families in numerous squamate species suggests a nonrandom process of satellite genesis originating from repetitive SINEs.

Рецензия на сборник статей «Социальное и национальное в советской культуре: к 65-летию декады татарского искусства и литературы в Москве» (Казань: Институт истории им. Ш. Марджани АН РТ, 2022. 436 c.)

The article presents a review of the collection dedicated to the 65th anniversary of the Decade of Tatar Art and Literature in Moscow. The collection includes articles by researchers presented at an international scientific conference. The authors revealed a wide range of academic problems related to the national culture evolution throughout the twentieth century and the processes of cultural genesis and sociogenesis of national cultures. A separate section of the collection is devoted to the issues of popularisation and preservation of national cultural traditions, their integration into the modern space. The studies devoted to the transformation of the management system in the field of culture are of particular interest are. The source base for a number of articles consisted of archival materials and documents of personal origin, represented by photographs and interviews.

Nonlocal Controls on Tropical Cyclogenesis: A Trajectory-Based Genesis Potential Index

Abstract Tropical cyclone (TC) genesis is initiated by convective precursors or “seeds” and influenced by environmental conditions along the seed-to-TC trajectories. Genesis potential indices (GPIs) provide a simple way to evaluate TC genesis likelihood from environmental conditions but have two limitations that may introduce bias. First, the globally fixed GPIs fail to represent interbasin differences in the relationship between environments and genesis. Second, existing GPIs are only functions of local environmental conditions, whereas nonlocal factors may have a significant impact. We address the first limitation by constructing basin- and time-scale-specific GPIs (local-GPIs) over the eastern North Pacific (ENP) and North Atlantic (NA) using Poisson regression. A sequential feature selection (SFS) algorithm identifies vertical wind shear and a heating condition as leading factors controlling TC genesis in the ENP and the NA, respectively. However, only a slight improvement in performance is achieved, motivating us to tackle the second limitation with a novel trajectory-based GPI (traj-GPI). We merge adjacent nonlocal environments into each grid point based on observed seed trajectory densities. The seed activity, driven mainly by upward motion, and the transition to TCs, controlled primarily by vertical wind shear or heating conditions, are captured simultaneously in the traj-GPI, yielding a better performance than the original GPIs. This study illustrates the importance of seed activity in modeling TC genesis and identifies key environmental factors that influence the process of TC genesis at different stages. Significance Statement The genesis potential index (GPI) is an effective tool for modeling the likelihood of tropical cyclone (TC) genesis for a given time and location. This study reveals that existing GPIs are primarily biased by a lack of information about nonlocal TC seed activity, since they are based only on local large-scale environmental variables. According to our study, upward motion and vertical wind shear are the most influential environmental factors in seed genesis and the transition from seed to TC, respectively. Based on the observed seed trajectories, we build trajectory-based GPIs that include the information from seed activity. Spatiotemporal performances of TC genesis are significantly improved over the original GPIs.

Factors of cultural genesis in the Southern Urals in the Late Middle Ages and Modern Times (based on archaeological materials of the Republic of Bashkortostan)

The object of the study is cultural genesis in the Southern Urals in the Late Middle Ages and Modern Times. The subject of the study is the factors influencing its development, which are considered through the prism of studying the archaeological material obtained during reconnaissance work on the monuments of the XVI – early XX centuries. This problem was not the object of special study. At the same time, its solution, on the one hand, fills in the gaps in the analysis of the processes of cultural genesis in the region as a whole, and on the other hand, contributes to the study of the peculiarities of the ethnocultural development of individual ethnic groups living here in the past. The theoretical basis of the research is the researches of Russian scientists in the field of cultural genesis, containing conceptual and theoretical developments. The information base of the study was the factual material on the problem under study, obtained during archaeological research on the territory of the Republic of Bashkortostan, including by the author himself, interdisciplinary and systematic approaches were used in the work for a comprehensive analysis of the designated problem, theoretical modeling, generalization, comparative historical, comparative typological methods were also used in the work. The scientific novelty of the study is due to the fact that for the first time the factors of cultural development in the Southern Urals in the Late Middle Ages and Modern Times were systematized and analyzed, which were considered in the context of the archaeological direction of cultural genesis research. It was revealed that the development of culture in the Southern Urals in the XVI – early XX centuries was influenced by both external (natural-geographical, anthropogenic, colonization, etc.) and internal (ethnic, religious, etc.) factors, which are recorded to varying degrees by the cultural layers of urban and rural settlements, fortifications and factories, cemeteries , etc. At the same time, speaking about the factors of cultural genesis, it should be borne in mind that they are so closely interrelated that it is often difficult to determine whether a change in culture is the result of the influence of one or another factor or several at the same time.

Petrifying Springs of Lviv Roztocze and adjacent territories: the Retrospective and Modern Condition

Eighty-four hard-water petrifying springs of Lviv Roztocze and adjacent territories, which are forming 18 streams, were examined and their current state was assessed. The geographical position, geomorphological features, conditions of water sources and spring beds, character of tufa-forming processes, shapes of tufa formations and vegetation composition were described for each location. It was established, that travertine springs on the studied territory are related to the sources of small rivers associated with water-erosive landscape complexes. The high mineralization of groundwater, the specific structure of the river-erosion network, the location in a moisture warm climate zone, the development of colonies of calciphilic organisms (cyanobacteria, algae, bryophytes) at the watercourses led to the formation of a large travertine deposits here in the past. At the present time, the complex of natural factors is often accompanied by anthropogenic influence due to a long period of modification of the water resources of The Roztocze region. Now most of the petrifying springs are transformed by human activity, which significantly affects the intensity of tufa-forming processes. It was established, that a high level of anthropopression led to the transformation of most tufagenic watercourses and a decrease in the intensity of their activity: complete (when the processes of tufa genesis are stopped) or partial (when the processes slow downed or returned to the initial stage). Our survey of 84 sources showed that the majority of them are markedly anthropized (63.1%), about a quarter (23.8%) are lightly modified and are semi-natural in origin, and only a small part of them have a natural character now (13.1%). Among the four travertine formations known from the end of the 19th century, only two have survived (Chepin streams, Hamulets streams), while two more have been completely destroyed (Berekavitsa streams, the springhead of the Kabanivka river). It should be noted, that the active zone of tufa accumulation has noticeably decreased on 5 streams with natural or semi-natural sources (cascade on Hamulets stream, cascade on Hrybovytskyi stream, the left tributary of Chyshkivskyi stream, cascade on Chepin stream, a travertine body at the site of the bath container in Lysynytskyi stream). Tufa accumulation processes at 21 sources (25.0%) were artificially returned to the initial stage of formation due to the destruction of previously generated deposits there. Natural travertine formations of the region mainly have the form of cascades, rarely - waterfalls or crests and anthropogenic ones are mostly covered by concrete trunk. Regardless of their artificial origin, anthropogenic wells can be valuable habitats for the habitats of calciphilic bryophytes in urbanized areas. Natural and semi-natural travertine springs with saved biodiversity are can be potential objects of the Emerald network of the Roztocze region.