bluuebunny/crossref_metadata_2025 huggingface dataset:
Development of electronic students’ worksheets based on problem-based learning on air pollution material
Authors: Destiansari Elvira , Salsabilla Fitri Wahyuni , Meilinda
Published: October 2024

This research is development research with the aim to produce teaching material products in the form of PBL-based electronic student worksheets on air pollution sub-materials that will be used during the learning process, so that students can be more active and independent. This type of research is development research using the ADDIE model (analysis, design, development, implementation, evaluation), but this research is limited to the development stage. This research was conducted at State Senior High Schools in Palembang in the 2023/2024 school year. The sample in this study was class X students totaling 12 people. Sampling in this study using purposive sampling technique. electronic student worksheets are designed using the Canva and liveworksheets applications; after completing the design of electronic student worksheets, they are assessed by material and media validators using an instrument in the form of a validation questionnaire. After the electronic student worksheet is declared valid, the electronic student worksheet is applied to students in a small group trial.  Based on the validation results with the Kappa calculation, the electronic student worksheets were declared valid with a Kappa value of 1. Electronic student worksheets also fall into the very practical category based on the teacher's practicality questionnaire which obtained a percentage of 100%, while the students' practicality questionnaire obtained an average percentage of 90.68%. Based on the results of the validation and practicality questionnaires of teachers and students, it can be concluded that PBL-based electronic student worksheets are valid and feasible to use during the learning process on air pollution sub-materials.
Problem-based blended learning: The student’s critical thinking skills in the respiratory system material
Authors: Jannah Na'imatul , Saifuddin Much Fuad
Published: October 2024

Critical thinking skills should be integrated into high school biology education through problem-based blended learning.. This study aims to determine the effect of the Problem-Based blended learning model on students' critical thinking skills in the material on the respiratory system at SMA A. This quasi-experimental study used a nonrandomized control group, pretest-posttest design involving 2 XI classes, namely the control class, which consisted of 33 students and 32 students in the experimental class. Collecting data on critical thinking skills is using a test technique. The test instrument used is a question sheet (pretest and posttest). The data analysis consisted of analysis prerequisites in the form of a normality test and homogeneity test, as well as hypothesis testing in the form of the Mann-Whitney test. This study's results indicate a significant influence on students' critical thinking skills in the respiratory system material for class XI at SMA A after applying the Problem-Based blended learning model assisted by Google Classroom. This can be seen from the average test of critical thinking skills in the experimental class, which is higher than the control class.
Tarakan city's marine potential as a teaching material for marine biology: A systematic literature review
Authors: Sam Nur Fitriana , Nursia  , Maradhy Ermawaty , Munira
Published: October 2024

This is a Systematic Literature Review (SLR) research that aims to identify the marine potential of Tarakan City which can be used as teaching material in Marine Biology courses. Search using the Publish or Perish 8 application by analyzing articles indexed by Google Scholar and Crossref. After carrying out the process of identification, screening, eligibility, and inclusion, a total of 9 articles were obtained, consisting of 6 Google Scholar articles and 3 Crossref articles. The entire article was analyzed for its suitability with the material content in the marine biology semester learning plan (RPS). Findings of this study show that the marine biota of Tarakan City that can be used as teaching materials for marine biology are seaweed, Signus Jjavus fish, Harpadon nehereus, Ilisha elongate, Protista, and Mangroves Research locations at Amal Beach, Binalatung Beach, Mamburungan, Juata waters, Juata Laut waters, KKMB Tarakan City, and Sadau Island, Indonesia. These articles can be used as teaching material for marine biology regarding the geographical conditions of Indonesian seas, marine animals, marine plants, marine biogeochemical cycles, marine primary productivity, coastal biota, mangrove biota, and research methods for plankton, benthos, and nekton. This research contributes to the planning and preparing of marine biology learning resources based on local potential.
Enhancing science communication skills biology in students through the number head together
Authors: Ismirawati Nur , Amri  , Randi Nur Zakiyah , Kasmawati
Published: October 2024

The teaching of science communication skills at the high school level can be effectively accomplished through lessons that are oriented not only towards the development of cognitive skills, but also towards the acquisition of hands-on communication skills. The present study employs an experimental research design to investigate the impact of NHT-type cooperative learning on students' science communication skills. This study employs an experimental design comprising an class and a control class. The study population comprised students at X MIPA UPT SMAN 2 The X MIPA 3 class was designated as the experimental class, while the X MIPA 7 class served as the control class. Sampling was conducted using a randomised system. The data employed in this study were derived from two sources: primary data collected via the science communication skills rubric and secondary data obtained through observation of student and teacher activities. The data collection instrument was a science communication skills observation sheet that had previously been tested for validity and reability. The data were analysed using the Friedman test, which revealed significant differences in students' science communication skills between the control and experimental classes at each meeting (p < 0.05). Similarly, the Wilcoxon test demonstrated a significant difference between the control and experimental classes at each meeting (p < 0.05). The findings of this study suggest that further research should be conducted at a larger scale to gain a more comprehensive understanding of the rubric of science communication skills.
Fourteen-Year-Old Male Football Player with Lesser Tuberosity Avulsion Fracture: Open Transosseous Equivalent Suture Repair
Authors: Puleo James M. , Posner Andrew D. , Kuna Michael C. , Zimmerman Joseph P.
Published: October 2024

Case:

We report a case of a lesser tuberosity avulsion fracture in a 14-year-old adolescent boy who presented to Orthopaedic Urgent Care where he was promptly diagnosed after magnetic resonance imaging. The patient was successfully treated with an open transosseous equivalent suture repair 3 weeks after initial injury.

Conclusion:

The purpose of this case report was to advance the understanding of these injuries, enable appropriate diagnosis and treatment, and optimize patient's shoulder outcomes and return to sport.
Cervical Myeloradiculopathy With Bilateral Foraminal Stenosis Treated by Unilateral Biportal Endoscopic Decompression with Alternating Hemilaminectomy and Bilateral foraminotomy: A Case Report and Technical Note
Authors: Pestonji Malcolm , Langaliya Maulik , Banka Paras
Published: October 2024

Cervical myeloradiculopathy is a debilitating condition characterized by progressive spinal cord dysfunction commonly caused by degenerative changes in the cervical spine. It typically exhibits an insidious onset and progressive functional decline, along with multiple exiting nerve root entrapments bilaterally in some patients. Traditional surgical interventions, such as discectomy and fusion, are associated with some complications and limitations. Unilateral biportal endoscopic (UBE) decompression can have significant advantages over traditional techniques when cervical central and bilateral foraminal decompression is required. In this case report and technical note, we describe our experience with this novel surgical technique for the treatment of cervical myelopathy. A 67-year-old patient presented with progressive neck pain; bilateral upper extremity radiculopathy; loss of power and sensation in the C5, C6, and C7 nerve root distribution; gait imbalance, and spasticity. Magnetic resonance imaging revealed multilevel cervical spondylosis with central canal and bilateral foraminal stenosis. The patient underwent UBE central and bilateral foraminal decompression. At a 9-month follow-up visit, he was able to walk unassisted, his reflexes had returned to normal, no spasticity was observed, and he had good grip strength in both hands. This is a novel technique of UBE decompression with bilateral foraminotomy at the C4–5, C5–6, and C6–7 levels and laminectomy named “the floating tip technique.” The procedure involved bilateral 3-level lamino-foraminotomy and hemilaminotomy on both C5 and C6. A hemilamina was removed on the opposite sides, and flavectomy was performed. Postoperative computed tomography findings showed an intact, complete muscular mass with an intact central spinous process. Therefore, this method was labelled the “floating tip technique.”
Exploring the lived experiences of menstrual hygiene management among in-school visually impaired adolescent girls in Rwanda: A phenomenological study
Authors: Bazakare Marie Laetitia Ishimwe , Nkurunziza Aimable , Bagirisano Justine , Katende Godfrey , Hitayezu Jean Bosco Henri , Uwera Yvonne Delphine Nsaba , Mukankusi Juliet , Ntirushwa David , Kaberuka Gerard , Mukamana Donatilla , Habtu Michael
Published: October 2024

Background:In low-income countries, many menstruating persons continue to face numerous challenges regarding menstrual hygiene management (MHM). Visual impairment further compounds the difficulties faced by in-school adolescent girls, but little is known about its consequences in Rwanda.
Objective: To explore the lived experiences of MHM among in-school visually impaired adolescent girls in Rwanda.
Design: Descriptive phenomenology.
Methods: This study was conducted in four specialized educational institutions for visually impaired students in Rwanda. We conducted four focus group discussions with 25 visually impaired adolescent girls selected purposively. The seven steps Colaizzi's method were used to analyze the data.
Results: Some participants reported double stigma due to both gender norms and menstruation as well as being visually impaired. Due to taboos and misconceptions around menstruation, some participants reported not getting accurate information about MHM from their parents or teachers. Some poor practices related to taboos and misconceptions such as drying the reusable clothes out of sight of others were reported. Finally, some participants faced a double burden regarding period poverty. Due to the lack of sanitary pads, some must use reusable clothes, which are challenging to clean and dry. In case of water outages, participantscould not travel to fetch water. Educational materials in three out of four girls' rooms are visual, making it difficult for visuallyimpaired girls to access accurate information.
Conclusions: To combat stigma against visually impaired girls who menstruate, it's vital to consider cultural and social contexts. Providing accessible menstrual health management (MHM) education, such as in braille or audio, and ensuring sanitary pad availability is essential. Accessible water stations with tanks should also be constructed to ensure a continuous water supply.
Evaluation of anion exchange resin for sorption of selenium (IV) from aqueous solutions
Authors: El-Tantawy A. , Elgoud E. M. Abu , El-Deen S. E. A. Sharaf
Published: October 2024

In this work, selenium (IV) was adsorbed from aqueous solutions by the strongly basic anion exchange resin Amberlite IRA 400. Using energy dispersive X-ray spectroscopy (EDX), Fourier transform infrared spectroscopy (FTIR), and scanning electron microscopy (SEM), the morphology of the resin was investigated both before and after Se(IV) sorption. In order to determine the ideal sorption conditions, a batch approach was used to examine the variables that affect the performance of Se(VI) sorption, including pH, shaking time, adsorbate dosage, starting metal ion concentrations and temperature. The sorption process was satisfactorily explained by the pseudo-second-order kinetic model, according to the experimental findings. The maximum adsorption capacity at pH 3.0 was found to be 18.52 mg/g, and the adsorption rather well followed the Langmuir adsorption isotherm. Moreover, exothermic and spontaneous sorption was the result of the thermodynamic properties (negativity of both ΔG° and ΔH°). The adsorption phase's random distribution of the resin-solution interface is indicated by the positive value of ΔSo
N2GNet tracks gait performance from subthalamic neural signals in Parkinson’s disease
Authors: Choi Jin Woo , Cui Chuyi , Wilkins Kevin , Bronte-Stewart Helen
Published: October 2024

Adaptive deep brain stimulation (DBS) provides individualized therapy for people with Parkinson's disease (PWP) by adjusting the stimulation in real-time using neural signals that reflect their motor state. Current algorithms, however, utilize condensed and manually selected neural features which may result in a less robust and biased therapy. In this study, we propose Neural-to-Gait Neural network (N2GNet), a novel deep learning-based regression model capable of tracking real-time gait performance from subthalamic nucleus local field potentials (STN LFPs). The LFP data were acquired when eighteen PWP performed stepping in place, and the ground reaction forces were measured to track their weight shifts representing gait performance. By exhibiting a stronger correlation with weight shifts compared to the higher-correlation beta power from the two leads and outperforming other evaluated model designs, N2GNet effectively leverages a comprehensive frequency band, not limited to the beta range, to track gait performance solely from STN LFPs.
Molecular Identification and Characterization of Bacteria Exhibiting Resistance to Different Metal isolated from Industrial Effluents, CETP, and Sirsa River, Baddi, Himachal Pradesh, India
Authors: Gangta Varsha , Sharma Mamta Devi , Kumari Chandresh , Kumar Pradeep , Kulshrestha Saurabh
Published: October 2024

The rapid industrialization of geologic and human activities has led to the emergence and widespread problem of heavy metal pollution, which poses a considerable menace to both the ecological system and human well-being. The objective of this study is to investigate, extract, recognize, and describe bacteria that possess the ability to reduce and detoxify heavy metals like Cu, Zn, Cd, Ni, Pb, Hg, and Cr found in industrial effluent, CETP, and the Sirsa River. Initially, a combined sum of 100 isolates underwent screening on NA plates containing different heavy metal supplements Pb, Cu, Zn, Cd, Hg, and Cr at a concentration of 50 ppm in their salt form. After screening, the five best isolates that showed high resistance were selected. The MIC of the microbial strains for metallic elements ranged from 50 to 550 ppm. All five isolates with resistance exhibited numerous tolerance to heavy metals and exhibited varying MICs against the aforementioned metallic elements at diverse concentrations. Maximum tolerable concentration and multi-metal resistance were determined. Identification of isolates extended up to the genus level through assessment of their morphological and biochemical characteristics, & analysis of the 16S rRNA gene sequences and were recognized as belonging to the Bacillus cereus (OR243903), Stenotrophomonas maltophila (OR243725), Bacillus cereus (OR244395), Bacillus cereus (OR243740) and E. Coli (OR244383). The bacteria resistant to heavy metals obtained from this research could prove valuable for bioremediation efforts in environments contaminated with heavy metals. Bioremediation, utilizing these bacteria resistant to heavy metals (HMRB), is the most favorable approach to tackle this concern. Therefore, identifying five bacteria for their resistance to heavy metals and capacity for biodegradation serves as a foundational investigation toward developing potential local bioremediation agents for industrial effluent treatment technology.
Single-cell RNA-seq provides insight into the underdeveloped immune system of germ-free mice
Authors: Sheng Yifei , Cheng Wei , Zhang Yin , Liao Qijun , Shen Juan , Zhao Ruizhen , Chai Tailiang , Wu Chao , Hu Weining , Huang Xiang , Wei Bo , Pan Shanshan , Zhang Yangrui , Chen Rouxi , Mei Junpu , Wei Hong , Han Lijuan , Fang Xiaodong
Published: October 2024

Background
Germ-free mice feature a profoundly underdeveloped immune system. Despite recent studies that emphasize the role of specific bacteria-derived metabolites in immune cell development and differentiation, it remains unclear how the lack of microbiota leads to immune deficiencies.
Results
Here we performed droplet-based single-cell RNA sequencing to analyze the bone marrow and peripheral blood of both germ-free and specific-pathogen-free mice, identifying 25 distinct cell types. Our findings indicate that neutrophil apoptosis in germ-free mice is strongly associated with the absence of niacin dehydrogenase, which derived primarily from Pseudomonas. In addition, germ-free mice exhibited elevated excretion of 5’-methylthioadenosine, increased ERK activation induced by reactive oxygen species, and cessation of the bone marrow stromal antigen 2 signaling pathway in germ-free mice. The responses of monocytes and CD8 + T cells to interferon β and interferon γ were reduced in germ-free mice, which accounted for their increased susceptibility to viruses.
Conclusions
Together, we identified a regulatory mechanism connecting immunodeficiency to the absence of microbiota in germ-free mice and validated these findings via multiple techniques.
Design and techno-economic analysis of a 15 kWp grid-tied net-metering solar photovoltaic power plant utilizing half-cut monocrystalline-PERC Si modules with elevated rooftop structure
Authors: Singh Shravan Kumar , Sinha Abhishek , Chander Nikhil
Published: October 2024

The declining cost of photovoltaic (PV) power generation makes on-grid PV plants suitable for residential and commercial applications. The elevated rooftop PV plant installation is an example of a solar plant that generates electricity without disturbing the terrace area. The paper presents the techno-economic analysis of a 15 kWp on-grid power plant placed on the rooftop of Vardhman Hospital with a net-metering scheme located at Durg, Chhattisgarh, India (21°11' N, 81°17' E). The plant rests on an elevated galvanized iron (GI) structure, using half-cut monocrystalline-passivated emitter and rear contact (PERC) cell-based PV modules. The plant's performance parameter and the system losses were calculated using PVsyst simulation software using PVGIS meteorological data. The annual plane of array (POA) irradiation is approximately 2230 kWh/m² at the plant location. The PV energy generation of the plant is 27727 kWh/year, and 27271 kWh/year of energy is injected into the grid. The annual performance ratio of the plant is 81.7%. The research article also focuses on plant design, electricity consumption, and the net electricity bill of the premises for three consecutive years before and after plant installation. The installation of the plant will be equivalent to planting 738 Teak trees over the lifetime, and carbon dioxide emissions mitigated is 461 tonnes. The payback period for an elevated structured on-grid PV plant is around six years.
Insights into the use of cytochrome bc1 inhibitors for future therapeutic strategies for tuberculosis
Authors: Pérez Clara Aguilar , Lenaerts Anne , Villellas Cristina , Guillemont Jerome , Dallow John , Painter Hannah , Ammerman Nicole , Hassan Anis , Golovkine Guillaume , Brock Laure , Chauffour Aurelie , Aubry Alexandra , Mai Thi , Wong Sarah , Clark Taane , Nam Kiyean , Kim Jeongjun , Choi Jinho , Crabbe Marjolein , Esqui Jorge , Lounis Nacer , Stoops Bart , Amssoms Katie , Bartolome-Nebreda Jose , Gruppo Veronica , Robertson Gregory , Veziris Nicolas , Upton Anna , Nuermberger Eric , Cox Vivian , Ballell Lluis , Baeten Benny , Koul Anil , Pym Alexander , Wall Richard , Lamprecht Dirk
Published: October 2024

Recent efforts to improve tuberculosis (TB) treatment options have focused on developing molecules with novel mechanisms of action and identifying optimal treatment regimens. Inhibition of Mycobacterium tuberculosis cytochrome bc1 oxidase has emerged as a promising therapeutic target that could potentially contribute to improved TB combination regimens. Using a relapsing mouse model, we demonstrate that cytochrome bc1 inhibitors could serve as effective partner drugs, enhancing regimen sterilisation. We propose several novel regimen strategies for both multidrug-resistant TB (MDR-TB) and drug-sensitive TB (DS-TB), where cytochrome bc1 inhibitors contribute to sterilisation and treatment shortening. Additionally, we show that clinical isolates exhibit heightened susceptibility to cytochrome bc1 inhibitors compared to laboratory-adapted strains, further supporting their translational potential. These findings suggest that cytochrome bc1 inhibitors have significant potential to improve TB treatment outcomes and highlight the need for further studies to evaluate their clinical contribution to novel treatment regimens.
Median Based Unit Weibull (MBUW): A New Unit Distribution Properties with Real Data Analysis
Authors: Attia Iman Mohammed
Published: October 2024

A new 2 parameter unit Weibull distribution is defined on the unit interval (0,1). The methodology of deducing its PDF, some of its properties and related functions are discussed. The paper is supplied by many figures illustrating the new distribution and how this can make it illegible to fit a wide range of skewed real data.
Determination of activity levels and radiological health risks associated with the consumption of sugar from South Africa
Authors: JOHN Samuel Odumu Ogana , OLUKOTUN Stephen Friday , RADEBE Moses Mpofana , MATHUTHU Manny
Published: October 2024

The study investigates activity levels of 238U, 232Th, and 40K, in fourteen commonly available sugar brands in South Africa, by gamma spectrometry. The findings revealed mean activity levels of 238U, 232Th, and 40K as 3.831 ± 0.208, 2.901 ± 0.208, and 320.257 ± 7.406 Bq/kg, respectively. The mean ingestion dose is 0.730, 0.116 and 0.039 mSv/y for infants (1-2 years), children (7-12 years) and adults (> 17 years), respectively, while 5.038 × 10-4 and 0.128 mSv/y are respective means of ELCR and AGED. The results were found to be below international permissible limits, indicating that the sugar in South Africa is safe and would not pose significant radiological health risks.
Culture of Communication as a Characteristic of Self-Determination of Russian Journalism in the Post-Global World
Authors:   Saint Petersburg State University, Blokhin Igor N.
Published: October 2024

The relevance of the topic is due to the processes of defi ning the post-global world order with the formation of sovereign macro-regions, the institutional participation of journalism in changes in the system of international relations, and the strengthening of the importance of culture of communications in professional activities. The novelty consists in identifying the institutional characteristics of journalism that infl uence sovereignty in the context of multipolarity and polycentricity, highlighting the culture of communications as a professional quality that determines the possibility of journalism’s participation in social change. The purpose of the work is to substantiate the culture of communications as a professional value, with its own structure and forms of manifestation. The tasks are to determine the importance of culture of communications, to identify the specifi cs of approaches to its analysis within the framework of the general theory of journalism and subject-oriented disciplines, to substantiate the place and importance of culture of communications in the structure of professional ideology. Based on the structural analysis of the culture of communications, the coincidences of interpretations at the pragmatic level and differences within the framework of the normative approach. Using the examples of subject-oriented theories, the specifi c features of the analysis of culture of communications and the prospects for its research are considered. The directions of studying journalism as a cultural industry, the institution of civil society and political control, forms of social work and regulation of social relations, an active participant and initiator of social change, are proposed. Keywords: culture of communication, theory of journalism, post-globalization, multipolarity, polycentricity, professional ideology
Attitude to Law as an Indicator of the Journalist’s Legal Culture (Based on the Materials of an Expert Survey)
Authors:   Saint Petersburg State University, Tretiakova Olga V.
Published: October 2024

The article discusses an important part of the professional culture of a journalist – legal culture, which is based on knowledge of legal norms and journalists’ attitude to the law, manifested in their lawful behavior and, in general, in the activities of modern Russian mass media. As part of the research project of the Department of Theory of Journalism and Mass Communications at St. Petersburg State University, Professional Ideology of Journalism, a pilot study of the normative-legal discourse of journalists’ professional culture was conducted. The empirical basis for the study was expert interviews with representatives of print media who have extensive experience in journalism, including the position of editor-in-chief. The purpose of the research is to reveal how sectoral legislation determines the content of journalists’ activities; how journalists feel about the Russian On the Mass Media law and the normative regulation of media activities in general; and, ultimately, how journalistic activities embody the three structural components of a journalist’s legal culture: 1) cognitive; 2) motivational-refl exive and 3) activity-practical. The results of the processing of expert interviews show that, in general, journalists have a respectful attitude toward industry-specifi c legislation and consider the current law On Mass Media to be a basic document regulating freedom of expression and many other issues of media activity. Although the freedom of speech, which was enshrined in the Russian law on mass media and later in the Constitution of the Russian Federation, has not become a tradition, a norm of life, creativity and professional culture of journalists. Keywords: law, legislation, legal culture, freedom of speech, journalist, expert survey
Russia – Africa: The Role of the Media in the Process of Cross-Cultural Communication
Authors:   National Research University Higher School of Economics, Panferova Yana D.
Published: October 2024

The article is devoted to the role of mass media in the process of intercultural communication with African countries. Due to the growing sanctions pressure from the European Union and the United States, Russia is looking for alternative political and economic allies, which it seeks to fi nd among the countries of the African continent. In this context, the issue of intercultural communication with this region is becoming increasingly important. The relevance of the study is due to the fact that the image of African states in the leading Russian print media does not correspond to Russia’s stated political ambitions towards these countries. It is observed that the image of the partner countries in the Russian media is not presented fully enough, with an emphasis on the negative side. The article substantiates the idea that the awareness of Russian residents about the culture of Africa is an important component of successful communication. The study aims to evaluate the functions of the media in the process of forming the image of a number of countries and, in accordance with this, analyze the image of Africa being formed in the Russian media fi eld. The novelty of the research lies in presenting a new perspective on the role of the media in the process of intercultural communication. The theoretical basis was scientifi c articles, documents published by public organizations and public authorities. The method of content analysis is used as an approach to the study of media texts. The research materials were published by the major Russian online media “Argumenty i Fakty (Arguments and Facts)” and “RIA Novosti”. The results show the presence of a negative asymmetry in the representation of the image of Africa. The prospect of this study is further and more detailed monitoring of the tone of media publications about Africa and the formation of specifi c proposals for correcting information policy. Keywords: coverage policy, image of Africa, intercultural communication, prospects for interaction, role of the media
Construction of the Historical and Cultural Media Landscape in Regional Media
Authors:   Dostoevsky Omsk State University, Shashkova Elena V.
Published: October 2024

The cultural space of the city is one of the most modern and relevant areas of research into the possibilities of identifying modern cities. Today, the media play a key role in the construction of the cultural media space, which largely determines both the “face” and “soul” of a modern city (both a metropolis and a provincial outback). When designing and implementing regional cultural policy, the central place is given to the unique cultural content of the place. This factor determines the relevance of the work. The object of the study is the media texts of the regional cultural and educational magazine “Omsk Muse”. The purpose of the study is to identify the problematic and thematic originality and historical context of media texts that implement the processes of construction and reproduction of the cultural media space of Omsk. Empirical material is media texts from the magazine “Omsk Muse”. The chronological period of the study is from 2008 to 2020. A total of 30 issues of the journal were analyzed. The following research methods were used in the work: general scientifi c methods of observing the material and describing it, the method of historicism, the method of content analysis, the method of discourse analysis, the cultural method, the method of functional analysis. In the course of the study, the content of the concept “cultural space of the city” was outlined, the specifi cs of the media space and media images as factors of modern cultural identifi cation were considered; the functions of the media are highlighted, with the help of which the cultural “face” of the region is formed. Based on the study of empirical material using content analysis, the problematic and thematic features of publications devoted to the cultural and historical image of the city were identifi ed. The research materials can be used in the development of lectures and practical classes in the disciplines “Regional Media”, “Art Journalism”, “Leisure Journalism”. Keywords: media space, media landscape, cultural memory, cultural and historical values, urban culture, provincial town
Инфузия субанестетических доз кетамина в послеоперационном периоде как средство церебропротекции у детей при хирургической коррекции врожденных пороков сердца: проспективное рандомизированное исследование
Authors: Ивкин Артём Александрович , Григорьев Е. В. , Балахнин Д. Г. , Синицкая А. В.
Published: October 2024

INTRODUCTION: The world literature describes the cerebroprotective properties of ketamine when used in minimal doses, which is due to its effect on NMDA receptors and inhibition of damage to the neurovascular unit. However, there is a lack of research on the use of ketamine for cerebroprotection in pediatric populations and cardiac surgery. OBJECTIVES: To establish the safety and effectiveness of ketamine infusion for cerebroprotection in children in the postoperative period during cardiac surgery. MATERIAL AND METHODS: The study included 45 children aged from 1 to 60 months and weighing from 3.5 to 20 kg, who underwent surgical correction of atrial or ventricular septal defect of the heart under artificial circulation. Patients were randomized into a study group or a control group. In the study group, upon completion, patients received a ketamine infusion at a dose of 0.1 mg/kg/hour for 16 h. To establish the effectiveness of cerebroprotection, serum markers of damage to the neurovascular unit were used: protein S100-β, neuron-specific enolase (NSE), glial fibrillary acidic protein (GFAP), occludin, claudin-1. Blood sampling for marker analysis was carried out at three control points: before the start of the operation, immediately after completion of artificial circulation and 16 hours after completion of the operation. RESULTS: Al studied factors in the intra- and postoperative period did not differ significantly between groups. When analyzing markers of damage to a neurovascular unit, their maximum concentration was revealed at the second control point. For the NSE marker, a lower level was found in the group using ketamine — 16.52 [11.61–18.8] and 21.37 [17.78–28.74] ng/ml (p = 0.0019). CONCLUSIONS: The safety of using ketamine infusion in the postoperative period at a dose of 0.1 mg/kg/hour was revealed. Among all markers used, NSE serum concentrations were statistically significantly lower in the ketamine group.
Mortality Prediction in the Emergency Service Intensive Care Patients with Possible COVID-19: A Retrospective Cross-Sectional Study
Authors: Ulu Mehmed , Kaya M. , Tunc Y. , Yildirim H. , Halici A. , Coskun A.
Published: October 2024

INTRODUCTION: Despite the declining clinical importance of Coronavirus Disease 2019 (COVID-19), the virus is still causes mortality in the critically ill patients. This study aims to determine the impact COVID-19 on mortality, evaluate the performance of Acute Physiology and Chronic Health Evaluation-2 Scores (APACHE II), Sequential Organ Failure Assessment Scores (SOFA) and Pneumonia Severity Index (PSI) for mortality prediction in the COVID-19 suspected patients. MATERIALS AND METHODS: This study is a retrospective cross-sectional analysis of patients who were admitted to the pandemic intensive care unit with possible COVID-19. 28-day mortality difference between positive and negative groups was defined as the primary outcome. RESULTS: Of the 397 patients, 111 (28 %) patients had positive polymerase chain reaction (PCR). 75 (67.6 %) patients deceased in the PCR positive group while 163 (57.0 %) patients deceased in the negative group (p > 0,05). The median values of APACHE II, SOFA and PSI scores were significantly higher in the deceased group, for all patients. Cutoff points were determined for APACHE II score at 19 (AUC 0,96, PLR 14, 16, NLR 0,12), SOFA score at 9 (AUC 0,96, PLR 20,23, NLR 0,11) and PSI score at 81 points (AUC 0,91, PLR 7,01, NLR 0,23). The AUCs of PSI was significantly lower from AUC of APACHE II and SOFA score (DeLong Test, p < 0,001). CONCLUSION: There was no statistically significant difference on mortality between positive and negative group.
Тошнота и рвота после сочетанной анестезии с применением ксенона в амбулаторной стоматологии у детей: ретроспективное наблюдательное исследование
Authors: Халиуллин Динар Мансурович , Лазарев В. В. , Грачева Е. С.
Published: October 2024

INTRODUCTION: According to the literature, the incidence of PONV is 2 times higher in children compared to adults. In the studies conducted, there are conflicting data on the pro-emetogenic and anti-emetogenic properties of xenon. OBJECTIVES: To study the effect of xenon on the incidence of PONV in the early post-anesthesia period using it in combined anesthesia when performing oral sanitation in children. MATERIALS AND METHODS: Retrospective, observational study included 113 children of both sexes (42 girls, 71 boys). All children underwent combined inhalation anesthesia using xenon in conjunction with local anesthesia by articaine.
RESULTS: According to the results of the study, the incidence of PONV was 4.4 %, whereas the estimated PONV was 30 % in 68 % of children from the presented sample of patients before anesthesia. CONCLUSIONS: In outpatient dental practice, when performing combined anesthesia with the use of xenon, the incidence of PONV is within 4 %. The choice of inhalation anesthetic xenon in children in terms of the incidence of postoperative nausea and vomiting is justified and can be recommended in outpatient practice.
Fermentation characteristics of silage of pearl millet (Pennisetum glaucum (L.) R. Brown) cultivars combined with soybean (Glycine max (L.) Merr.) hull
Authors: Trevisoli Francismar de Camargo Anchieta , de Freitas Paulo Vitor Divino Xavier , Oliveira Leonardo Guimarães , Corrêa Daniel Staciarini , Trevisoli Priscila Anchieta , Ferreira Reginaldo Nassar , Jacovetti Reginaldo , Calil Francine Neves , Silva-Neto Carlos de Melo , França Aldi Fernandes de Souza
Published: October 2024

This study examines the fermentation characteristics of silage of pearl millet (Pennisetum glaucum) cultivars (BRS 1501, ADR 500, ADR 8010) harvested at 65 days of vegetative growth with the inclusion of levels of soybean (Glycine max (L.) Merr.) hulls (0, 3, 6 and 10%). Millet was harvested and ensiled in small silo (mini silo) and kept for 30 days. The laid out in a completely randomized design with a 3 × 4 factorial arrangement with three replicates, where the mini silo was considered an experimental unit. Characteristics such as effluent losses, gas losses, dry matter recovery index and silage composition were evaluated. The highest soybean hull inclusion level (10%) resulted in the lowest gas and effluent losses. Silage dry matter recovery did not differ in response to the inclusion of soybean hulls or between cultivars. Silage pH values ranged from 4.07 to 4.85. Mean buffering capacity ranged from 10.82 (ADR 8010) to 30.19 (ADR 8010) mEq NaOH/100 g DM among treatments. Mean soluble carbohydrate content differed according to the soybean hull inclusion levels and cultivars. Lactic acid content was influenced by the soybean hull inclusion levels, ranging from 5.07% (ADR 8010; at 10% inclusion) to 7.10% (BRS 1501; in control treatment). The inclusion of soybean hulls in the silage of pearl millet cultivars promoted the production of good-quality silage with lower gas and effluent losses. Therefore, the maximum recommended level to include is 10%.
Multiresidue Method for Quantification of Nitroimidazoles, Anthelmintics, Amphenicols, and Dyes in Meat, Shrimp, and Fish by Using a Modified QuEChERS-type Extraction and Isotope Dilution Ultra-High Performance Liquid Chromatography-Tandem Mass Spectrometry
Authors: F. de Souza Leonardo , L. P. Pereira Felipe , L. D. Silva Alisson , G. Lana Mary Ane , R. de Paiva Cristiana , M. M. F. Gloria Matheus , L. Fernandes Wagner , Nogueira Raquel
Published: October 2024

This paper presents an analytical multiresidue method for the quantification of 7 nitroimidazoles, 19 anthelmintics, 3 amphenicols, and 4 dyes in poultry, pork, beef, horse, shrimp, and fish samples by isotope dilution ultra-high performance liquid chromatography coupled with tandem mass spectrometry (UHPLC-MS/MS) in a single 6 min run. Samples were prepared using a modified quick, easy, cheap, effective, rugged and safe (QuEChERS)-type extraction with ethyl acetate and Na2SO4-NaCl (2:1), concentration into dimethyl sulfoxide (DMSO), and defatting by liquid-liquid extraction (LLE) with n-hexane. No clean-up using solid-phase extraction (SPE) cartridges or dispersive solid-phase extraction (DSPE) was necessary. The linearity ranges (in μg kg−1) were 0.10-0.60 for chloramphenicol, 0.50-3.0 for dyes, 1.5-9.0 for nitroimidazoles, and 5.0-30.0 for the other drugs. The limits of quantitation (LOQ) were established at the lowest calibration curve levels. Except for chloramphenicol in the horse matrix, analyte recovery and reproducibility were satisfactory (recovery (fREC): 75.0 to 116.6%; coefficient of variation (CV): 1.2 to 29.9%). For the unapproved substances and the substances with a maximum residue level (MRL), respectively, the decision limits (CCα) were 0.14-4.10 and 5.28-1003.60 μg kg−1, while the detection capabilities (CCβ) were 0.13-3.33 and 5.46-11.56 μg kg−1.
Numerical modelling of the effect of gas temperature non-uniformity on the geometric parameters of the heating element in a cold spraying technology
Authors:   Mavlutov Institute of Mechanics UFRC RAS, Ufa, Russia, Mukhutdinova A.A. , Nizamova A.D. , Li W.Y. ,   Shaanxi Key Laboratory of Friction Welding Technologies, School of Materials Science and Engineering, Northwestern Polytechnical University, Xi’an, Shaanxi Province, China
Published: October 2024

In contemporary mechanical engineering, extending the lifespan of products necessitates heightened standards for the materials used in the fabrication of components and structures. One of the most promising avenues is enhancing material characteristics through the application of functional coatings. This includes boosting the material’s corrosion resistance, wear resistance, and protection against mechanical damage, as well as enabling localized repairs without disassembling the structure. Preference is given to technologies that do not adversely affect the surface to which they are applied. Cold spray technology stands out as one of the most rapidly advancing methods for applying protective coatings and imbuing materials with various functional properties. This technique not only safeguards surfaces but also enhances their operational characteristics, ensuring the longevity and reliability of products. Investigation of the influence of the dependence of the gas heating on the geometric parameters of the heating element of the cold spraying technology was considering in this work. This task was considered in two software solvers: the software product ”Thermoviscous fluids: a hydrodynamic simulator for modeling flow in annular channels with heat exchange“ and ANSYS. The modeling results show that the spiral steel tube can effectively be used for heating gas to high temperatures at high speeds. However, it is necessary to consider that at high speeds, additional hydrodynamic effects such as turbulence and shear flows may occur, which can affect the efficiency and stability of the gas (nitrogen) flow.
Biology and Demographic Statistic Myzus persicae on Chili Plant
Authors: Fadloli Ahmad Iqbal Rijal , Rahardjo Bambang Tri
Published: October 2024

This research aimed to observe the biological aspects and demographic data of Myzus persicae on chili plants. The research was conducted at the Laboratory of Pests and Wire House, Department of Plant Pests and Diseases, Faculty of Agriculture, Brawijaya University, Malang, from August 2020 to July 2021. Biological observations, including the life cycle, lifespan, and fecundity, were made to gather demographic data. Parameters for demographic analysis included the gross reproduction rate (GRR), net reproduction rate (R0), intrinsic rate of increase (r), and generation time (T). The results showed that the nymphal stages lasted 2.30, 2.17, 2.28, and 2.09 days for the first to fourth instars, respectively. The mean life cycle duration was 8.85 days, with a total fecundity of 21.04 offspring per female adult. Meanwhile, the average lifespan of M. persicae was 11.93 days. Demographic statistics for M. persicae on chili showed a GRR of 51.71 individuals per generation, an R0 of 14.41 individuals per female per generation, an r of 0.38 individuals per female per day, and a T of 16.22 days.
Krisis Kelembagaan Pariwisata: Studi Kasus Kampung Susu Lawu, Magetan, Jawa Timur
Authors: Arandahana Herafani
Published: October 2024

In the tourist system, organizational structures have a crucial part in managing human resources, sustainability planning, and handling management. To ensure the sustained existence of the tourism industry, it is necessary to investigate the phenomena of deteriorating organizations in the sector to determine its roots and identify remedies. This study aimed at evaluating the current state of the Pokdarwis Pesona Singo Langu organization in Kampung Susu Lawu and determining the elements that have weakened it and impeded its efficacy. Using descriptive qualitative analysis, this research collected data from community members, stakeholders, and the chairman of Pokdarwis Pesona Singo Langu through observation and interviews. Three organizational components goals, functions, and formation were the main subjects of the analysis. The findings showed that the goal element has been successfully attained because of the clear legal status. However, there were deficiencies in the goal element. A lack of empathy from the community and the top-down approach to governance and operationalization were two main factors that are undermining the organization. The formation of newly created organizations by younger organizations, the dynamics of the political year, and a lack of coordination and communication were examples of external variables. If corrective action is not done quickly, this phenomenon is likely to set off a wider chain reaction.
Implementasi Geointerpretasi berbasis Kearifan Lokal di Destinasi Wisata Minat Khusus Gua Cerme, Bantul, Yogyakarta
Authors: Kulsum Farah Aida Ilmiatul , Djunaedi Achmad
Published: October 2024

One of the Gunung Sewu Geopark's three main pillars, geointerpretation of landscape duality, is implemented by special interest tour guides who possess the knowledge and abilities necessary for the job site and who must be proficient in cave exploration methods and cave science. With the primary tourist attraction being a cave with a tunnel length of 1200 meters and an underground river, this study was conducted at the Cerme Cave Tourist Destination, specifically in Srunggo Village, Imogiri District, Bantul Regency, to observe how the Pokdarwis Cerme tour guide implements interpretation in tourism spaces. The research was conducted utilizing a logical approach and qualitative approaches. Data gathering methods included cave and surface area mapping, cave photography, participant observation, and semi-structured interviews. The research findings show that there are two tourism spatial zonings that are related to the content of geointerpretation, and the second finding is interpretation activities of geological objects that are mixed with local wisdom through the story of the spread of Islam by the Wali Songo in Cerme, which is believed to have occurred in the past by the local community. This tale has been passed down through generations and is part of the material given to guests by Cerme Cave tour guides. These beliefs impact the destination's toponymy, ornaments and places within the cave, as well as geointerpretation activities carried out in the Cerme Cave Tourist Destination's dual landscape.