bluuebunny/crossref_metadata_2025 huggingface dataset:
The effect of emersion and UV solar radiation on Pacific oyster Crassostrea gigas survival and pathogen development in the intertidal environment.
Authors: Lynch Sharon , Kett Gary , Jansen Marcel , Culloty Sarah
Published: September 2024

Pacific oysters Crassostrea gigas are cultured intertidally in estuaries and bays and are prone to disease outbreaks associated with pathogens (ostreid herpesvirus-1 microVar (OsHV-1 mVar) and Vibrio bacteria), which can decimate stocks. The holding height on the intertidal exposes C. gigas to various biotic and abiotic factors for e.g. UV radiation which has poorly known impacts on oyster survival and pathogen development. A 5-month field trial was carried out at two shore heights (2 m vertical differential) to investigate young C. gigas (spat) survival and pathogen development. UV exposure, tidal height and air temperature were recorded. 1000 oyster spat were divided equally between two shore heights (HS and LS) and sampled weekly. Mortality was counted in situ and pathogen screening for V. aestuarianus and OsHV-1 mVar was carried out by PCR and qPCR on (n = 570) C. gigas. Results indicate that higher oyster mortality was positively associated with emersion duration, including UV exposure (>2.4 kJ/m2) and high air temperatures (>21 oC). Pathogen partitioning was observed i.e. a higher prevalence of OsHV-1 mVar in HS C. gigas while a higher prevalence of V. aestuarianus was detected in LS C. gigas, also reflected in infection intensity. This study shows that oyster spat mortality and pathogen infection levels are influenced by the growing height on the shore above Chart Datum. Data are supported by and contrasted to previous studies. These findings are especially relevant to global coastal aquaculture sites experiencing summer mass mortality episodes and outbreaks of Vibrio and/or herpesvirus related diseases.
A Discrete Physical Model for Analyzing the Vibrations of a Non-Uniform Bi-Directional FGM Beam under Elastic Foundations and Different Support Conditions
Authors: Moukhliss Anass , Rahmouni Abdellatif , Benamar Rhali
Published: September 2024

This study employs a discrete physical model (DPM) to investigate the small-amplitude transverse free vibrations of non-uniform beams made from bidirectional functionally graded materials (2D-FGM), the material properties of the beam are varied continuously in both the axial and transverse directions by exponential gradation laws. The beam is analyzed on variable elastic foundations and under various boundary conditions. The model represents the continuous beam as a multi-degree-of-freedom (MDOF) system that incorporates masses, bars, and spiral linear springs. After calculating the system's mass and linear stiffness matrices, as well as the foundation's rigidity matrix, which are computed using an appropriate discretization that aligns with the properties of the examined beam, Hamilton's principle is applied to derive a set of algebraic equations predicting the non-dimensional natural frequencies and mode shapes of the beams. The numerical results obtained from this discrete model were compared with those from previous studies to validate the proposed approach. The flexibility of this model allows for precise adjustment of linear vibration frequencies by modifying the geometrical properties of the beams, the gradation exponents in the $x$ and $y$ directions $(n_x, n_y)$, the taper ratio $\gamma$ of the non-uniform beam, and the foundation's position $\chi$ and intensity $\eta$, as well as the boundary conditions. This highlights its utility in analyzing and designing complex beam structures for diverse engineering applications.
Femtosecond laser drilling controlled with laser-generated ultrasound pressure
Authors: HAYASAKI YOSHIO , MIURA TAKUMA
Published: September 2024

Laser drilling of glass using tightly focused femtosecond laser pulses while monitoring laser-generated sound is demonstrated, aiming laser drilling controlled by laser-generated sound. The amount of laser ablation was found to have a monotonical relation to the intensity of the sound pressure. It was also found that when the laser pulses were focused on the glass surface, the sound pressure increased in the initial stage of the laser drilling and then declined as the hole became deeper. These behaviors were the result of increasing ablation caused by surface roughening and loss of sound propagation through the hole, respectively. It was further found that the movement of the objective lens (OL) toward the target material at an appropriate constant speed created a hole with a large depth and narrow entrance (a high aspect ratio); that is, the lens movement changed the performance of the laser drilling. A simple method for moving the lens using laser-generated sound was adopted in this study. The axial position of the OL was controlled by maximizing the sound pressure at each pulse irradiation to obtain a hole with a high aspect ratio, which was the same as the maximum hole depth obtained by the iterative experiments in the constant-speed control of the OL. More sophisticated control methods should be developed according to the given applications.
Interplay between structural integrity and aromaticity on governing the nature of the non- covalent interactions within the mono and di-solvent clusters of 2-Hydroxypyridine and 2- Hydroxynicotionic acid: A topological description
Authors: Ganguly Aniruddha
Published: September 2024

Bader’s “Atoms in Molecules” formalism has been adopted to assess the non-covalent interactions present within the mono and di-solvent (water and methanol) clusters of 2-Hydroxypyridine and 2-Hydroxynicotionic acid in their Closed and Open conformations and to critically analyze the characteristics and the energetics of the interaction lines towards the planarity of the structural skeletons. Nucleus independent chemical shift (NICS) descriptor has also been exploited to delineate the role of aromaticity in dictating the structures and the characteristics of the non-covalent interactions present within the studied compounds. Both electrostatic and partially covalent Hydrogen bonding interactions (HB) are found within the clusters. Furthermore, apart from the typical O····H–O and N····H–O HBs, a weak albeit unique O····H–C interaction line of purely electrostatic origin is observed. The covalency of the HBs as well as the structural constraints are found to modulate the aromaticity of the associated pyridine nuclei.
Determinants of Retroplacental Hematoma at the Maradi Mother and Child Health Center, Niger: a case‒control
Authors: Ali. Zaratou
Published: September 2024

Introduction
Retroplacental hematoma is a paroxysmal accident that threatens maternal and fetal prognosis. It is a major emergency in obstetric pathology. The objective of this study was to identify the factors associated with retroplacental hematoma at the Maradi Mother and Child Health Center in 2022.
Methods
This was a case‒control cross-sectional analytical study that used patient records for the year 2022 from September 20 to October 20, 2023. The presence of retroplacental hematoma was the outcome variable and was measured by a case (yes) or control (no) response. The exposure variables included sociodemographic characteristics, obstetric characteristics, care, progression of patients and neonatal characteristics. Pearson's chi-square tests at the 5% significance level were used to analyze differences between categorical variables. All variables that had a bilateral p value <0.05 in the bivariate analysis were introduced into the binary logistic regression model to identify factors associated with retroplacental hematoma.
Results
A total of 246 cases of retroplacental hematoma were recorded out of 4731 deliveries recorded during the study period, for an estimated frequency of 5.20%. The mean age of the patients was 29.41 ± 6.94 years. Factors associated with retroplacental hematoma included pauci-multiparity (2 more children) [adjusted odds ratio (ORA): 1.57, 95% confidence interval (CI) (1.01-2.23)], fewer than 4 antenatal visits [AOR: 10.70, 95% CI (1.14-99.74)], blood transfusion [AOR: 2.01, 95% CI (1.11-3.60)], a newborn birth weight less than 2500 grams [AOR: 1.92, 95% CI (1.53-2.42)] and fetal mortality in utero [AOR: 13.20, 95% CI (1.86-93.70)].
Conclusion: This study identified the factors associated with retroplacental hematoma. Prevention requires regular, high-quality prenatal care. Early diagnosis and cesarean section improve maternal–fetal prognosis.
Dielectric Relaxation Studies of Eu3+ Doped Graphene Oxide Nano Layers
Authors: I DHANYA , ABRAHAM NIKHILA ANN , PISHARADY SREEJITH K
Published: September 2024

A bulk amount of Graphene Oxide nanosheets is prepared using the Modified Hummers’ Method. Rare earth material such as Europium nitrate pentahydrate compound is added to graphene oxide in varying percentages to study the dielectric behaviour of graphene oxide. Morphological analysis results reveal a nano sheet-like pattern in pure graphene oxide, while for the Europium-doped graphene oxide, a cluster of Europium atoms seems trapped between layers of graphene. The electron diffraction rings are indexed using multiphase analysis, and the hexagonal carbon structure remains unaltered in doped samples. Electrochemical Impedance Spectroscopy (EIS) studies are conducted on pure and Europium-doped graphene oxide. Frequency variations with the real and imaginary parts of dielectric constants are studied for both the composite material and the pure graphene oxide. Also performed are Photoluminescence (PL) studies. The emission spectrum of Eu3+ doped Graphene oxide is used to study the Judd-Ofelt parameters and allowed transition probability is determined.
Industrial Big Data-Enabled Deep Learning: Integrating AI-Driven Adaptive Attention with LSTM for Advanced Solar Photovoltaic Power Forecasting
Authors: Li Shuai
Published: September 2024

The escalating global deployment of Solar Photovoltaic (PV) systems highlights an urgent demand for sophisticated power output forecasting methods that leverage the vast datasets characteristic of industrial applications. Precise forecasting is essential for maintaining grid stability, optimizing energy distribution, and balancing the supply-demand equation, particularly given the unpredictable nature of solar energy sources. Long Short-Term Memory (LSTM) networks, renowned for their proficiency in capturing long-term dependencies within time-series data, have emerged as a leading solution to this forecasting challenge. However, the static attention mechanisms in traditional LSTM models are ill-equipped to handle the complex dynamics of solar power data.
This paper introduces an innovative LSTM model that integrates an AI-driven adaptive attention mechanism, designed to harness the power of industrial big data for enhanced forecasting. The model dynamically identifies and emphasizes relevant temporal features, thereby increasing its responsiveness to real-time data fluctuations. Our approach, after extensive validation using a diverse set of benchmark solar PV datasets, demonstrates a remarkable improvement in forecasting accuracy over conventional LSTM models.
The adaptive attention mechanism confers a twofold benefit: it enhances the model's adaptability by adjusting its focus in accordance with shifting data patterns, and it promotes interpretability by clarifying which temporal features are considered most influential by the model at any given moment. Ultimately, the integration of adaptive attention with LSTM establishes a new precedent in solar PV power forecasting and suggests broader applications across the renewable energy sector, showcasing the model's adaptability and wide-ranging potential.
The Impact of Nitrogen Levels on the Growth, Development, and Yield of Orange-fleshed Sweet Potatoes (Ipomoea batatas L.)
Authors: Joko Lungisa Benathi , Eiasu Bahlebi Kibreab , Ngwenya Sandile Manzi
Published: September 2024

Nitrogen (N) is one of the most important fertilizers in agriculture because it promotes the growth of plants and the uptake of other plant nutrients. This nutrient plays a significant role in determining the yield and nutrient composition of sweet potato root tubers. Therefore, this study aimed to determine the optimum application rate of N in sweet potatoes to maximize yields and increase growth efficiency. Four levels of N (50, 100, 150, and 200 kg/ha) were applied as treatments. A randomized complete block design was used, and each treatment was replicated five times. Vine length, leaf length, stem thickness, and chlorophyll content were measured weekly, and the storage root yield was determined at the end of the experiment. The results showed a significant effect of the N treatments on plant growth, chlorophyll content, vine length, leaf area index and storage root yield. The chlorophyll content and vine length increased with an increase in the N rate. However, an inverse relationship was observed between storage root yield and N rates; the highest yield was recorded for the 50 kg/ha N treatment and the lowest yield was recorded for the 200 kg/ha N applied. Therefore, a rate of 50 to 100 kg/ha N is recommended for the production of orange-fleshed sweet potatoes.
Sustaining Soil Health in High Tunnels: A Paradigm Shift toward Soil-centered Management
Authors: Pierre Jacques Fils , Jacobsen Krista L. , Wszelaki Annette , Butler David , Velandia Margarita , Woods Timothy , Sideman Rebecca , Grossman Julie , Coolong Timothy , Hoskins Bruce , da Silva Andre Luiz Biscaia Ribeiro , Ginakes Peyton , Kleinhenz Matt , Zhao Xin , Rivard Cary , Rudolph Rachel E.
Published: September 2024

This review was conducted to synthesize current knowledge, learn producer and Extension specialist perspectives, and identify gaps in understanding of the role of soil health in sustaining production in high tunnel (HT) systems. This synthesis includes findings from scholarly resources related to soil health in HTs, including research and Extension-based literature, perspectives from experienced HT producers and technical assistance providers, and the direct observations of a broad network of university research and Extension personnel working with HTs. Findings are intended to identify knowledge gaps and additional research and Extension resource needs of greatest priority to the HT producer community and technical assistance providers that support them at the time of publication. A review of 68 research articles and 58 Extension resources was conducted. Focus group interviews were conducted with small groups of experienced HT farmers in four regions of the eastern half of the United States, with in-depth farm case studies conducted in individual farmers in three of these regions. Growers across regions identified soil fertility management, soilborne diseases, soil compaction, and lack of consistency of soil analyses specific to HTs as the greatest soil-related challenges to HT production. Research and resources for technical assistance providers on mitigation strategies to remediate yield-limiting HT soil conditions, such as excessive soil salinity and high pathogen populations, were also lacking. As such, process-based research on techniques such as leaching, soil steaming, solarization, and anaerobic soil disinfestation in tunnels that consider short- and long-term costs, benefits, and effects on soil and plant productivity should be prioritized in the future when considering the impact of HT production on soil health. Interviews also indicated a need for networking opportunities for technical assistance providers across agencies (e.g., Natural Resources Conservation Service, Extension, nongovernmental organizations). Despite a high and increasing rate of adoption, there is currently a lack of information about maintaining HT systems. Given that HTs play a critical and growing economic role for specialty crop growers throughout the eastern United States, comprehensive intervention across the research–Extension spectrum to sustain productivity in HT systems is recommended.
Enhancing Clonal Micropropagation of Zarya Alatau Apple
Authors: Yerbolova Laura S. , Rakhatkyzy Akbota , Aubakirova Karlygash P. , Bakytzhanova Zhibek N. , Kryldakov Ruslan V. , Galiakparov Nurbol N.
Published: September 2024

The purpose of this study was to improve the protocol of clonal micropropagation for effective mass production of the Zarya Alatau apple cultivar through the use of axillary buds. In Kazakhstan’s challenging climate, the Zarya Alatau apple thrives because of its unique traits, including fruit preservation until May, cold hardiness, and resistance to scab and powdery mildew. Micropropagation is essential for healthy mother tree establishment, and this research focused on key factors for successful in vitro propagation. The sterilization of explants was optimized: 1.6% solution of sodium hypochlorite effectively sterilized plant materials for 10 minutes. Nutrient media composition was evaluated for efficient shoot regeneration. The study examined axillary bud regeneration on Murashige and Skoog medium with different concentrations of hormones. A combination of 6-benzylaminopurine (0.5 mg/L) and gibberellic acid (0.5 mg/L) yielded optimal results, with shoots reaching 3.5 cm. Root induction was analyzed with varying indole-3-acetic acid (IAA) concentrations, and the best results were achieved with 1.5 mg/L IAA, resulting in an 85% rooting frequency. Adapting in vitro plants to ex vitro conditions is crucial given their sensitivity to environmental changes. Well-developed leaves and a robust root system are essential for successful acclimatization during transplantation into a soil substrate. This research provides valuable insights into the critical parameters for a successful transition of in vitro propagated plants to soil conditions, optimizing micropropagation practices.
Effects of Irrigation and Fertigation on Seedless Watermelon Yield in Southern Indiana
Authors: Luna Emerson , Guan Wenjing , Camberato James J. , Dong Younsuk
Published: September 2024

Indiana cultivates approximately 7000 acres of watermelons (Citrullus lanatus) every year, with the majority of production concentrated in southern Indiana, thus making this region a key area for watermelon production in the United States. Diverse irrigation and fertilization practices are used for watermelon production in the region, yet their effects on production outcomes remain poorly understood. To address this knowledge gap, this study investigated the impact of existing practices on watermelon yield to optimize irrigation and fertilization practices for improved production. The experiment was conducted at the Southwest Purdue Agricultural Center, Vincennes, IN, USA, during the 2022 and 2023 watermelon seasons. The following four treatments were applied: high irrigation, low irrigation, no irrigation, and fertigation. The fertigation treatment received the same water application as the high irrigation treatment, but with frequent fertilizer application with irrigation; however, fertilizers were applied before planting in the high, low, and no irrigation treatments. Although soil moisture levels at the different depths varied notably among treatments, no significant differences in yield by weight were observed. The minimal impact of irrigation on watermelon yield suggested that sufficient water is stored in the soil to prevent yield-reducing stress during dry periods. However, the high irrigation and fertilization treatments produced more fruit than the low irrigation and no irrigation treatments. The dry periods during both years coincided with the watermelon fruit-setting stages, potentially contributing to the lower fruit set in the low irrigation and no irrigation treatments. Fertigation showed a higher early yield in 2022 than that of the other treatments. An analysis of soil and tissue nitrogen levels indicated that solely applying nitrogen before planting could lead to excessive soil nitrogen during vegetative growth. This excess nitrogen might delay flowering and harvest. This project offers insights into enhancing irrigation and fertilization practices for watermelon production in southern Indiana, provides recommendations, and discusses future research directions.
Study on terrain response of the military mobile repair vehicle towing power generator trailer before and after improvement
Authors: Dao Quyen Manh , Tran Thang Duc , Le Duong Van
Published: September 2024

Mobile repair vehicles play an indispensable role on the battlefield and are increasingly being improved to enhance their effectiveness. When moving to repair locations on the battlefield, they often tow trailers, which include power generator sets. In some cases, these generator sets are replaced by trailers to transport ammunition or carry wounded soldiers. The article proposes improvements to the suspension system on the generator trailers and discusses the impact of vehicle speed and random road roughness on the movement of the mobile repair vehicle-trailer combination before and after the improvements. A dynamic model of the multi-body system is constructed, with the towing vehicle being a three-axle truck. The random roughness profile of the road surface is determined from simulation results based on ISO 8068 standards. The equations of motion are established using Lagrange's method and solved through simulation using Matlab software. The results of the article indicate the oscillation of the mobile repair vehicle-trailer combination when traveling at speeds of 36 km/h and 54 km/h on road surfaces with random roughness levels of class D and class E. After the improvement of the suspension system on the generator trailers, smoother trailer motion is observed. The study has shown that the vertical oscillation amplitude of the trailer decreased by up to 18 %, while the oscillation speed decreased by as much as 40 %. The findings provide a basis for further improving the suspension system on generator trailers to minimize oscillations, which is crucial for replacing generator trailers with specialized trailers for transporting ammunition or wounded soldiers on the battlefield. This is a significant issue in the field of national security and defense
Estimation of reliability and safety level for hazardous production facilities
Authors: Bagir-zadeh Mamed , Dyshin Oleg , Habibov Ibrahim
Published: September 2024

The work is devoted to the analysis of non-standard methods for assessing reliability and the probability of uptime (operating time) to failure at a certain point in time.
In the case of small deviations in the density of the failure distribution from the normal type, the perturbation function method is considered, which is applicable to a wide class of distributions decreasing at infinity no faster than the exponential function. For processing censored runs, when only the number of runs for certain periods of observation time is known, estimates of the distribution function from start to failure and the probability of uptime are obtained based on the application of the root method of nonparametric construction of the distribution density of a random variable. In contrast to strictly probabilistic methods of reliability analysis, diffusion distributions as probabilistic-physical models of reliability have a great practical advantage. The method of constructing the failure distribution function proposed in the article provides a reasonable choice of a theoretical distribution model from a fairly complete set of competing distribution models, which must necessarily include monotonic and non-monotonic diffusion distribution.
The results of the study of reliability estimates and the probability of trouble-free operation in relation to dangerous failures allow to assess the level of safety of complex technical systems containing hazardous production facilities. An analytical expression has been obtained for the probability of trouble-free operation of a system with automatic protective devices that ensure the safety of maintenance personnel at hazardous production facilities
Development of a process model for determining the composition and energy characteristics of a pyrotechnic mixture using the library method
Authors: Brunetkin Olexander , Maksymov Maksym , Dobrynin Yevhenii , Demydenko Volodymyr , Sidelnykov Oleksandr
Published: September 2024

The range of changes in the characteristics of powder mixtures, even of the same brand, expands due to different storage periods and progressive degradation of the powders. The need to simplify the procedure for determining the composition and energy characteristics of the powders used is emphasized. The purpose of simplification is to increase the number of quality control points for incoming charges, bring them closer to combat formations, and reduce the requirements for service personnel.
It is proposed to determine the actual composition and energy characteristics of the powder charge based on the library method. This approach requires a large amount of calculations – multiple solutions to the problem of equilibrium conversion of the original powder mixture into combustion products. But these calculations for a given brand of powder are carried out in advance, once and in laboratory conditions. The characteristics of a specific charge sample are determined using library data based on the measured technological parameters of its combustion process - the mass of the burned sample and the temperature of the powder gases.
To be able to take into account soot formation and gaseous products of thermal destruction of powder when solving problems for filling the library, the equilibrium model of such a process has been modernized. Instead of partial pressures and concentrations of substances, their mole fractions are considered. The use of partial pressures is convenient when there are only gaseous products. The use of mole fractions made it possible to uniformly take into account the gaseous and condensed phases of combustion products.
The modernized calculation model was verified by comparing the obtained results with known data. The need to validate the list of combustion products in each case under consideration was determined
Effective Strategies for Boosting Critical Thinking and Learning Motivation: The PQ4R Approach
Authors: Lutfianasari Ulfa , Nasikah Ilmi
Published: September 2024

This research aims to determine the effectiveness of the PQ4R learning strategy on students' critical thinking skills and learning motivation. This research uses quasi-experimental research with a nonequivalent control group design. The population in this study was part of class XI MIPA at MA Negeri Kendal. Sampling was carried out using the cluster random sampling technique. The sample used in this research was 36 students of class XI MIPA 4 as the experimental class and 32 students of class XI MIPA 3 as the control class. The research results showed that the critical thinking skills t-test obtained a significance value (Sig.) 0.000 0.05, meaning there were differences in critical thinking skills between the experimental and control classes. Based on the results of the N-Gain test, critical thinking skills for the experimental class were 0.4418, and for the control class were 0.1483. The results of the t-test research on learning motivation obtained a significance value (Sig.) 0.001 0.05, meaning there is a difference in learning motivation for the experimental and control classes. Based on the results of the N-Gain test, the learning motivation for the experimental class was 0.3315, and the control class was 0.1529.  This research concludes that the effect of the effectiveness of using the PQ4R learning strategy on critical thinking skills and learning motivation in the experimental class is higher than in the control class.
Onegin type of hero in the Russian poetry of 1840s and 1850s (N. M. Yazykov, Ap. Grigoriev, N. P. Ogarev, N. A. Nekrasov)
Authors:   The Institute of Russian Literature (Pushkin House) of the Russian Academy of Sciences, Boiarkina Polina V.
Published: September 2024

The article is devoted to the analysis of the transformation of the Onegin type of hero in the poetic works written in 1840s–1850s. The European models Pushkin’s character is based on are indicated directly in the text of the novel: these are the works of J. G. Byron, Ch. R. Maturin, B. Constant, F. R. Chateaubriand and Ch. Nodier. They embody two types of heroes: demonic (characters of Byrons oriental poems, Melmoth, Jean Sbogar) and passive and reflective (Rene, Adolphe, Childe Harold). The combination of their features in Onegin gave the image volume and ambiguity. Inheriting the Onegin type of hero, the later literary tradition often retained the features of only one of the two named types. The transformation of the image was determined by the fact that the hero, firstly appeared in the 1840s, was moved from the poetic reality into the context of prose and its social interests. However, at the same time, Onegin type of hero still continued to appear in poetic texts, showing the transition of tradition from one quality to another: tendencies characteristic of prose develop directly within the framework of poetic texts. In the works of N. M. Yazykov and Ap. Grigoriev’s passive and demonic types were embodied: the first — in the poetic dramatic scenes of Yazykov, the second — in the poems of Grigoriev. And both poets are concerned with the problem of their hero’s social unproductivity. N. P. Ogarev in his poem “Character” summarizes current idea of the spiritual biography of the Onegin type of hero. “Confession of an Superfluous Man” by Ogarev as well as “A Strange Case” by Yazykov are texts in which the problems associated with the measurement of high poetry are paired with modest everyday prose. In Nekrasov’s poem “Sasha” almost all the characteristics of the Onegin type, as the authors of the 1850s saw it, are collected and condemned.
Pushkin anthological epigram: Poetics of self-referentiality
Authors:   The Institute of Russian Literature (Pushkin House) of the Russian Academy of Sciences, Virolainen Maria N.
Published: September 2024

“Beauty in front of the mirror”, “Statue in Tsarskoye Selo”, “Who grew the tender roses of Theocritus in the snow?” by Pushkin, as well as some anthological epigrams of his contemporaries). The ancient Greek epigram, distinguished by clear formal features and a wide variety of content, recorded, as a rule, only something static or instantaneous. This quality ensured, in the eyes of Pushkin’s contemporaries, the authenticity of the transmission and perception of the object depicted in the epigram. In anthological epigrams of the first third of the 19th century, deviations from such primordial features of the genre as the elegiac distich and the absence of rhyme were allowed, but the static nature, anti-narrativeness, and embodiment of an instantaneous, non-deployable state characteristic of ancient models were preserved. In connection with the last feature, the question arises as to whether a lyrical plot can be realized within the framework of such a genre. Using the example of Pushkin’s epigrams, which are not an inscription addressed to a really existing object, but create a convincing plastic image (creating their own denotation), it is shown that the event component of such texts (their lyrical plot) lies in the very act of embodiment of a visible object, in the act of its acquisition of existence. In a number of cases, this act becomes the subject of poetic reflection, the epigram comprehends itself and becomes self-referential. The substance of poetry, cleared of narration (Yu. N. Chumakov’s terms), is presented in such cases as a self-creating and self-interpreting principle.
Pushkin’s “Winter Evening” in the genre context of the era
Authors:   St. Petersburg State University, Grigorieva Elena N. , Zolotukhin Veniamin T. ,   The Institute of Russian Literature (Pushkin House) of the Russian Academy of Sciences
Published: September 2024

The analysis of a textbook Pushkin poem is aimed primarily at identifying how the lower levels of its structure are organized. Phonetic repetitions and rhythmic patterns simultane ously reproduce the monotony and chaotic unpredictability of the winter cataclysm: the first verse, thanks to its instrumentation, not only names, but recreates the sounds of the storm; alliteration forms a spiral movement built on return and shift — like the moving tornadoes of a snow blizzard. The meaning of words is projected onto the general musicality of their sound structure and forces the reader to correlate phonetic repetitions and imagery of the text. The identified rhythmic form, imitating the tonic verse of a folk song, makes it possible to clarify the genre orientation of the first half of the text: it is the folk song at the level of rhythm and figurative structure that declares itself from the first verses. The “voices” of a ballad, a folk song, a friendly epistle, an elegy, a “Bacchic song” are co-present in the poem as a whole, not only as its sources, but as equal participants in the formation of meaning. This chorus of genre voices, the diversity of rhythmic and sound organization, the unexpected intonation of recognizable motifs, the diversity of names of the addressee, the variability of the compositional division of the text give rise to such semantic inexhaustibility that excludes an unambiguous “minor” or “major” reading of the poem. A paradoxical effect arises — the “madeness” of the text, proven by the analysis, not only does not refute, but provokes an inescapable “biographical” reading of it: techniques and genre traditions “extinguish” each other, challenging the literary quality of “Winter Evening”. The pragmatics of the poem is aimed at ensuring that the reader sees in the lyrical hero an exiled poet, whiling away the evening alone with the nanny, consoled by her songs.
Pushkin’s “The Undertaker” (“Grobovshchik”) in dispute with the genre of the fantastic story
Authors:   The Institute of Russian Literature (Pushkin House) of the Russian Academy of Sciences, Lebedeva Anna A.
Published: September 2024

A. S. Pushkin’s “The Undertaker” is considered in the genre context of a fantastic story. In the 1820s begins the formation of this prose form in Russian literature. At that time, the works are still heterogeneous, but quite clearly show some common tendencies. By depicting the “invasion” of the supernatural, the early fantastic story initiates doubt in the reader about the established worldview only to lead him or her to an “outcome” of the fantasy plot. Such an outcome, as a rule, lies outside the aesthetic sphere — it is either a moral admonition, an appeal to the principles of a certain philosophical system, or an explicated question about order of the world. The fantastic itself has a purely service role. Although many features of “The Undertaker” (the plot, the image of the hero, the depiction of an emphatically domestic setting, etc.) indicate a high degree of its traditionality in relation to the fantastic story of the 1820s, Pushkin violates the genre canon at its very foundation. The possibility of problematizing the fantastic plot and, as a consequence, of resolving it in any of the traditional ways mentioned above is eliminated from the narrative. The author’s play with literary conventions creates a whole system of allusions to the “dualistic world” principle (“dvoemirie”) of the story’s organization, but consistently reduces its symbolic dimension. The coexistence of life and death, not being destroyed within the plot level by the “intrusion” of the supernatural, gives the artistic world completeness and integrity. The comprehension of the problem of human existence returns to the realm of art, and literary fantastic becomes free from its service purpose.
Poetics and semantics of the names of the authors of literary, philosophical and religious texts in Nikolay Gumilyov’s and Sasha Chоrny’s poetry
Authors:   I. M. Sechenov First Moscow State Medical University, Fedotova Kseniya S. , Krasilnikova Pelageya Yu. ,   I. M. Sechenov First Moscow State Medical University, Krasilnikova Varvara G. ,   I. M. Sechenov First Moscow State Medical University
Published: September 2024

The present research is an attempt at comparative analysis of poetic texts by Nikolay Gumilyov and Sasha Chоrny in the aspect of literary onomastics. Our interest was inspired by chronological and event coincidences in the biographies of the poets. We try to reveal common and specific features in the use of proper names in poetic texts of the authors. We examine proper names (writers and poets) mentioned in the texts, analyse their semantics and compare the selected contexts. There are 171 proper names were selected, described each proper name occurring in the texts from the point of view of its contextual meaning, referential meaning, and participation in the unfolding of the theme of the text. The proper names of the specified thematic group occurring in the texts of only one of the authors were reviewed in an overview. We used semantic analysis, comparative method and method of interpretation to identify the patterns in the implementation of contextual semantics of poetonyms and make assumptions about their role in the poetics of the texts. The poetonyms found in both systematically implement different types of referential meanings: in N. S. Gumilyov’s texts, in most cases they refer directly to literary figures as figures of history and culture, and in Sasha Chorny’s texts they more often become a means of characterizing people or certain value-based or aesthetic communities.
As várias faces da ignorância
Authors: Silva Tadeu de Oliveira , Martins Daniel Costa , Galeno Araújo Dantas Alexsandro
Published: September 2024

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The Effect of Kinesio Taping on Diastasis Rectus Abdominal in Postpartum: A Systematic Review and Meta-analysis
Authors: Salekzamani Yaghoob , Moradian Mohsen , Eftekharsadat Bina , Mirghafourvand Mojgan , Hasanpour Shirin , Asghari Kimia Motlagh , Bani Soheila
Published: September 2024

Background:

During pregnancy, hormonal and physiological changes can affect the abdominal
muscles. Diastasis rectus abdominis can often be detected during pregnancy and the postpartum
period.

Objective:

The aim of this study was to determine the effect of kinesio taping on rectus abdominis
diastasis in the postpartum period.

Methods:

In this study, all published RCTs and quasi-RCT studies related to the studied title were
searched and evaluated by considering the PICO method in PubMed, Web of Science, and Scopus
until September 2022. Meta-analysis was performed using Review Manager 5.3 statistical software.
Initially, 146 articles were analyzed, and after duplicates had been removed, 109 articles were
available for evaluation. Finally, seven studies were included in the meta-analysis.

Results:

The outcome of the meta-analysis showed a statistically significant difference in improving
intra rectus Diastasis above the umbilical (MD: -0.24 (95% CI: -0.33, -0.16; P < 0.00001, I2 =
89%), but at the level and below the umbilical, the results were not significant. In this study, the results
of this meta-analysis using the random effects model showed a statistically significant difference
between the intervention group receiving kinesio taping and the control group (MD: -0.51;
95%) regarding physical disability due to back pain. CI: -1.86, -1.16, P = 0.00001, I2 = 0%.

Conclusions:

Kinesio taping alone or in combination with exercise improves DRA (more significant
above the umbilicus), physical disability due to low back, and decreased abdominal circumference
size in postpartum better than other methods.
Advanced Technologies of Potash Fertiliser Production from Promising Raw Materials
Authors: Assylkhankyzy Aigerim , Seitmagzimova Galina
Published: September 2024

Aims

To propose a new method for producing ballast-free potash fertilisers from promising raw materials.

Background

Potash ores from Chelkar and Zhilyan deposits with huge reserves were not previously explored. In this study, promising previously unexplored potash ore deposits with huge reserves were examined. Chemical and mineralogical compositions of potassium rock from Chelkar and Zhilyan deposits were determined based on which carnallite nature of both salts was found. However, Chelkar salt also contains a large amount of impurities of sodium chloride and calcium sulphate, and Zhilyan salt is more concentrated in potassium, contains less halite and does not contain insoluble gypsum. For these salts, a method of incomplete dissolution for raw material enrichment in potassium was selected and validated. The process of subsequent processing of the enriched salt was investigated by means of nitric acid decomposition of this salt and two-stage crystallisation of target salts from the extract. Thermodynamic probability of the reactions’ occurrence confirms the formation of an equilibrium solution. We calculated the activation energy for the main reaction,which proves the inside-kinetic region of behavior.

Objective

To study kinetics and chemical equilibrium of nitric acid decomposition of potassium raw materials.

Methods

Processing of previously unexplored potash ores, IR, XRD, SEM, and spectrometric methods of analysis.

Results

Chemical and mineralogical compositions of potash rock from Chelkar and Zhilyan deposits were determined, and the main stages of their processing have been studied.

Conclusion

New effective methods for producing chlorine-free potassium and potassium-nitrogen fertilisers have been proposed, which are characterized by minimal water input and the absence of production waste. As a result, a method for producing ballast-free potash fertilizer was proposed, which was not previously used for other kinds of raw materials. This method allows us to not only enrich raw materials with the potash component, but also to separate an insoluble gypsum intergrown with other potash minerals in the ore composition. The use of traditional processing methods does not allow for obtaining a completely water-soluble fertiliser.
Effect of Fluorine Addition on the Topographical Changes of the Dentine Tubular Walls and the Percentage of Fluorapatite in the PILP System
Authors: Napitupulu Elizhabet , Meidyawati Ratna , Putranto Aditya Wisnu
Published: September 2024

Aims

This study aimed to determine the effect of fluorine in dentin remineralization. Guided tissue remineralization has been shown to remineralize affected dentin by forming intrafibrillar and extrafibrillar minerals. Through polymer-induced liquid precursor system, crystals are formed with small sizes and occur intrafibrillarly. The addition of fluorine can form larger fluoroapatite crystals and complete the remineralization to the extrafibrillar. Existing research only focuses on the dentine surface, while there has been no research to prove remineralization in the dentine tubular walls.

Objectives

The objective of this study was to determine the effect of adding 5ppm and 25ppm fluorine in the polymer-induced liquid precursor system on topographical changes and the percentage of fluoroapatite of the dentinal tubule walls.

Methods

Demineralized dentin blocks were immersed in 5ppm and 25ppm fluorine remineralization solution. Dentine blocks were cross-sectioned using fracture method and analyzed using field emission – scanning electron microscope, and x-ray diffraction.

Results

Topographical changes occurred on the dentinal tubule walls after remineralization with the addition of 5ppm and 25ppm fluorine through field emission– scanning electron microscope test. Statistical tests were performed using SPSS 25 (SPSS inc) software to analyze the X-ray diffraction data. X-ray diffraction analysis showed that there was no statistically significant difference between the addition of fluorine to the percentage of fluoroapatite mineral phase, but substantially there was an increase in the percentage of fluorapatite.

Conclusion

The addition of fluorine in the polymer-induced liquid precursor system does not influence changes in the topography of the dentinal tubule walls and the percentage of fluoroapatite.
Evaluation of Compliance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) Guidelines for Conducting and Reporting Systematic Reviews in Three Major Periodontology Journals
Authors: Alharbi Fahad , Gufran Khalid , Alqerban Ali , Alqahtani Abdullah Saad , Asiri Saeed N , Almutairi Abdullah
Published: September 2024

Background

Data from the systematic review, with or without meta-analysis, form the basis of evidence-based medicine. Therefore, these studies should be conducted and reported according to the mandatory Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. This study evaluated compliance with the PRISMA guidelines for conducting and reporting systematic reviews in three major periodontology journals.

Material and Methods

A hand search was conducted in three major periodontal journals to identify Systematic Reviews (SRs) published between January 2018 and July 2022 using the words “Systematic Review” or “meta-analysis” in the title, abstract, or methodology of an article. The PRISMA statement checklist was used to evaluate eligible SRs, covering various sections of the review process. Descriptive statistics, univariate and multivariate analyses, and inter-examiner and intra-examiner reliability assessments were conducted for data analysis.

Results

A total of 87 SRs with meta-analyses were included in the current study. The proportion of published systematic reviews during the investigation period was 5.7% of the total published articles. 16 items were reported adequately in less than 75% of the included papers. Notably, items such as abstracts, data items, sensitivity analysis methods, synthesis results, reporting biases, evidence certainty, registration and protocol, data, code, and other materials availability were reported inadequately in some reviews.

Conclusion

The findings from this study support previous research demonstrating that compliance with the PRISMA guidelines for the conduct and reporting of systematic reviews can vary, potentially attributing to a lack of understanding regarding these guidelines and their clinical significance.