bluuebunny/crossref_metadata_2025 huggingface dataset:
Descriptive Analysis of Mathematical Connection Ability in Comparative Materials for Junior High School Students
Authors: Sajiman Supardi Uki , Hasbullah Hasbullah
Published: October 2024

The purpose of this study was to analyze the mathematical connection ability of the comparative material of junior high school students. This study uses a qualitative approach. Determination of the subject in this study using a purposive sampling technique. The subjects in this study were seventh-grade students of Al-Maghfiroh Junior High School. Data collection techniques in this study used tests and interviews. The results showed that the students' mathematical connection ability was classified as moderate with a percentage of 66.7%. In completing mathematical connections, accuracy is needed to solve mathematical connection problems according to indicators. it is expected to pay more attention to the difficulties experienced by students to improve their mathematical connection skills. Therefore, educators can introduce questions related to everyday life so that students can relate mathematical concepts to everyday life problems
Problem-Based Differentiation Learning Design in Class X High School Exponent Material
Authors: Sari Tiara Nurindah , Hiltrimartin Cecil , Hartono Yusuf
Published: October 2024

Problem-based differentiation learning is learning that begins with real-world problems (real problems), which students can then solve real problems guided by problem-based steps. With the use of problem-based differentiation learning students can foster interest in learning in learning mathematics. Not only that, this problem-based differentiation learning design is also associated with learning styles, where there are three learning styles used, namely: audio learning styles, visual learning styles, and kinesthetic learning styles. The method used in this study is the design research method type of validation studies, which is a form of qualitative approach. Design research aims to develop Local Instructional Theory (LIT) with the collaboration of researchers and teachers to improve the quality of learning. The implementation of differentiation learning at the beginning of learning makes students excited and able to recall about the exponents and also when the learning process takes place they learn with their own learning style so that learning becomes active, by applying their own learning style it makes them more relaxed during learning and more focused .
The Influence of Brainstroming Learning Methods on Mathematics Learning Motivation in Class X Students of SMK Koperasi Pontianak
Authors: Risalah Dewi , Lasmi Lasmi , Meilania Hendrika , Elisa Bella
Published: October 2024

The purpose of this study was to determine the effect of the brainstorming learning model on the mathematics learning motivation of class X students of the Pontianak Cooperative Vocational School in the year 2022-2023. The population in this study were all students of Class X SMK Cooperative Pontianak in the academic year 2022-2023, with a total population of 65 students, and the researchers randomly selected the population for research. Therefore, Class X AKL was chosen as the control class with 17 students, Class X BDP was chosen as the experimental class with 19 students, and 36 students were used. Data was collected using a questionnaire method in the form of an explanation, but the analysis of the data used quantitative explanations, hypothesis testing used the T-test formula. After checking  < ), it turned out that Ho was rejected and Ha was accepted. From the results of this study, it can be concluded that there is an effect of the brainstorming learning method on the learning motivation of class X students at the Pontianak Cooperative Vocational School.
Leveraging ChatGPT for Developing Learning Object Material: A Multi-representation Approach to Teaching Water Pollution
Authors: Alfiani Ririn , Sulisworo Dwi
Published: October 2024

This study aims to explore the utilization of ChatGPT, in conjunction with Canva and Renderforest applications, to develop learning object material with a practical multi-representational approach. The objective is to create engaging and interactive educational content on water pollution, catering to diverse learning preferences and enhancing students' understanding of the subject. The study employs a mixed-methods research design, combining qualitative data from the developed learning object material with quantitative data gathered through a USE questionnaire. The research participants consisted of 23 seventh-grade students grouped into four teams who engaged in a 30-minute group learning session with the learning object material. Following the group activity, a 10-minute question-and-answer session addresses any queries. Subsequently, students individually attempt test questions in multiple-choice, matching, and true/false formats. The results indicate positive student responses to the learning object material, demonstrating its effectiveness in promoting water pollution awareness. Most students agree on the material's usefulness, ease of use, ease of learning, and satisfaction. The findings emphasize the potential of AI-driven content creation and its seamless integration with creative tools in transforming the educational landscape. The study recommends continued research and development in AI integration in education to enhance the application's performance, usability, and adaptability to cater to diverse learning needs and preferences. The positive impact of AI integration in education holds promise for fostering better understanding and promoting the transformation of traditional learning approaches into technology-driven.
Arcyria and allied genera: taxonomic backbone and character evolution
Authors: Yatsiuk I. , Leontyev D. , Schnittler M. , Ehlers T. , Mikryukov V. , Kõljalg U.
Published: October 2024

Arcyria, one of the most diverse genera of bright-spored myxomycetes, has recently been identified as polyphyletic within the paraphyletic family Arcyriaceae sensu lato. However, due to the high variability and inconsistency of morphological traits in Trichiales, no taxonomic decision has yet been proposed to rectify this situation. A thorough revision of the genus is necessary. To address this, we present results of the extensive taxonomic and geographic sampling of the genus by incorporating sequences of two marker genes from 192 specimens of Arcyria spp. from 19 countries and six continents into the existing three gene phylogenetic backbone of Trichiales. Our phylogenies decisively confirm the polyphyletic nature of Arcyria, with a considerable part of the genus forming a sister clade to Hemitrichia. Consequently, we erect here the new family Hemitrichiaceae and resurrect the genus Heterotrichia to accommodate the second major branch of former Arcyria species. Additionally, we describe the new genus Spiromyxa with intermediate phylogenetic position and unique combination of morphological traits. Furthermore, we show that most of the Arcyria morphospecies included into this study are either species complexes or para- or polyphyletic taxa. Traits, previously thought to delimit the genus Arcyria, show little consistency with the phylogeny. In particular, the expanding, net-like capillitium, attached to the cup or stalk, appears to have been present in the ancestor of three families of Trichiales, afterwards mostly persisted in two of them and evolved into something else in the third. Such traits as ornamentation of capillitium, cup and spores retain their taxonomic value primarily at the species level. However, the colour of the spore mass in fresh condition partially aligns with our phylogenetic results: most of the yellow “Arcyria” species cluster within Heterotrichia, while red and grey species sort mostly into separate subclades within the clade incorporating the remaining species of the genus Arcyria.
Hygrophorus citrinofuscus: epitypification of a rare waxcap species from Central Europe and its transfer to the genus Neohygrocybe
Authors: Friebes G. , Fuljer F. , Boertmann D. , Voglmayr H. , Kautmanová I.
Published: October 2024

Hygrophorus citrinofuscus is a striking and rarely reported grassland species originally described by J. Favre from the Swiss Alps. In absence of sequence data for the type specimen, a recent collection from Austria, which is well documented based on morphology and sequence data, is designated as the epitype of H. citrinofuscus to stabilise the species concept. Further collections from Austria and the Czech Republic are given. Morphologically similar species are discussed. Hygrophorus citrinofuscus is morphologically and phylogenetically well delimited and macroscopically characterised by yellow-brown pileus colours, a fibrillose pileus surface, pale lamellae and a yellow stipe, making it readily recognisable in the field. Morphology of the lamellar trama as well as phylogenetic analyses of a combined matrix of ITS, LSU, SSU and RPB2 sequence data clearly place this species in the genus Neohygrocybe, and a transfer is proposed.
Development of the Model for Construction in Science Inquiry Class Using Digital Twin Technology
Authors: Byeon Jung-ho
Published: October 2024

This study aims to develop a model for construction in a science inquiry class, explicitly focusing on the application of digital twin technology. This technology allows students to explore biological phenomena virtually, learning with virtual replicas and physical space in the context of learning biology. To develop the model, the researcher analyzed various research related to digital twin applications and performed a literature review in the context of effective teaching and learning strategy. Additionally, 22 students were recruited to assess the effect of the class to construct through the model at the affective domain. This study found that the construction model of inquiry class functions as guidance for interactive and immersive learning, enabling students to overcome the traditional limitations of time, space, and physical resources. Also, results showed that students significantly improved their affective domain in biology inquiry class. Consequently, three conclusions were drawn from this research. First, digital twin technology enhances student engagement and interaction, creating a more immersive and interactive learning environment. Second, personalized learning is facilitated, as the digital twin system allows for real-time monitoring and tailored feedback, fostering greater independence in students’ learning processes. Third, the digital twin-based class model proved feasible and effective in actual classes, with tangible improvements in students’ affective domain towards science and inquiry-based learning. Therefore, using the digital twin technology can help reduce the digital and educational divide by providing high-quality learning experiences in resource-limited settings.
Identification of Brain Activity Patterns of Junior High School Students’ Learning on Metaverse-based Ecosystem: An fNIRS Study
Authors: Kim Eun-Jeong , Park Seohee , Lee Su-Min , Jung Da-Kyong , Kwon Yong-Ju
Published: October 2024

This study aims to identify the brain activation patterns of middle school students during their learning activities based on the metaverse-based ecosystem. The metaverse-based ecosystem of 13 species inhabiting coastal reefs was designed for the learning program of the experimental group, while the control group was provided with a Zoom learning program with the same content. Analyzing the average brain activity within the metaversebased ecosystem revealed predominantly left-sided brain activation in the fNIRS system. This suggests heightened activity in areas associated with visual stimuli and observational learning tasks characteristic of the metaverse. General Linear Model (GLM) analysis indicated increased activity in the left Ventrolateral Prefrontal Cortex (VLPFC) region and decreased activity in the left Dorsolateral Prefrontal Cortex (DLPFC) region, indicating engagement in interactions with objects and others during inquiry activities within the metaverse-based ecosystem. Comparative analysis with a control task showed reduced activity in the right Orbitofrontal Cortex (OFC) region related to negative emotions and in the Frontopolar (FP) region associated with goal-oriented thinking and metacognition. This suggests a shift in affective and cognitive domains compared to non-face-to-face platforms, with students exhibiting relatively positive emotions but reduced goal-oriented thinking when using the metaverse.
Exploring Changes of Problem-Posing and Brain Activity of Elementary School Students According to the Degree of Structure of the Task Situation
Authors: Han Jinhee , Lee Kwangho , Son Taekwon
Published: October 2024

The purpose of this study is to develop and apply a problem-posing program for elementary school students according to the degree of structure of task situations in the area of geometry and measurement, and to compare its effectiveness to provide implications for problem-posing instruction. In the process, changes in brain activity were analyzed together to verify the effect of the problem-posing program on the brain and provide empirical evidence. For this purpose, the experimental group performed the problem-posing program in an unstructured situation and the control group performed the problem-posing program in a structured situation for 8 sessions, and evaluated the change of abilities in problemposing made by students during the class according to analysis framework. We found that the students further developed their problems following the learning steps in the problemposing program. In particular, the experimental group showed higher improvement in the level of problem-posing and showed significant activation on the brain areas: the frontal regions, the right VLPFC area, and the DLPFC area. These results suggest that it is necessary to increase the reflection of problem-posing tasks in unstructured situations in the curriculum, develop and apply various task types, and present systematic learning steps together.
Association between Physical Activity Levels and Generalized Anxiety Disorder in Adolescents
Authors: Park Sung-Tae
Published: October 2024

This study analyzed the association between physical activity levels and the risk of generalized anxiety disorder (GAD) among Korean adolescents using raw data from the 2022 Korea Youth Risk Behavior Survey. This study’s participants are 51,850 students, including 28,015 middle school students and 23,835 high school students. To identify the association between physical activity level and generalized anxiety disorder, I conducted a complex sample frequency analysis, cross-tabulation analysis, and logistic regression analysis to calculate odds ratio and confidence intervals. Results showed that the risks of experiencing GAD and perceived stress levels tended to increase with higher grade levels and lower academic achievement and economic status. Higher levels of physical activity, particularly vigorous physical activity and resistance exercise, were associated with a lower risk of GAD. This association remained significant even after controlling for socioeconomic factors and stress levels. However, the association between physical activity and GAD risk differed by gender. For female students, moderate-intensity physical activity showed a tendency to slightly lower anxiety levels when controlling for socioeconomic factors and stress levels, while resistance exercise showed a negative relationship with anxiety levels. These findings emphasize the importance of physical activity promotion programs for improving adolescent mental health and suggest the need for differentiated intervention strategies that consider gender, grade level, and socioeconomic factors.
Developing and Applying a Science Inquiry Program Utilizing Data Science
Authors: Ahn Haejung , Kim Hyunjung
Published: October 2024

The purpose of this study is to investigate the impact of science classes using a science inquiry program that utilizes data science on the science core competency among high school students. To achieve this, a science inquiry program was developed based on the data science process, incorporating public data related to heat exchange in chemical reactions, and considering the characteristics of digital-native learners as well as social demands. This program, designed for use in the Chemistry I course, integrates data science with scientific inquiry. The developed program was applied over a three-week period with 52 students at K high school in Chungnam. To verify the program’s effectiveness, students’ science core competency was assessed before and after the program was applied. The study results are as follows: the science inquiry program utilizing data science showed a significant effect on the science core competency, specifically in scientific reasoning, scientific communication ability.
Reward-induced memory distortions bias value-based decisions
Authors: Li Xinyue , Bakkour Akram
Published: October 2024

Our memories play a crucial role in many decisions. Recent work has begun to study how individuals recombine elements of past episodes stored in memory to evaluate the outcome of some decisions (Biderman et al., 2020; Shohamy & Daw, 2015). However, memory is not infallible and can get distorted. Understanding the impact of a fallible memory system on decision-making is essential. To explore how rewards influence memory and subsequent choices, we employed a modified version of the classic Deese-Roediger-McDermott (DRM) paradigm (Deese, 1959; Roediger & McDermott, 1995), where we assigned different levels of reward to different DRM lists at the encoding stage . Words were either novel, studied, or conceptually related critical lures. In Experiment 1, we tested the effect of reward level at encoding on subsequent memory performance. In Experiment 2, we tested the effect of reward level on subsequent memory-guided value-based decision making. We found that high-value critical lures were brought to mind more often than low-value critical lures overall. Interestingly, participants properly identified high-value critical lures as new, despite bringing those words to mind (i.e., participants successfully monitored their memory for high-value critical lures), but failed to so for low-value critical lures. Moreover, participants chose high-value critical lures more often than novel items that were not related to the studied lists when compared to low-value critical lures. These findings suggest that reward can modulate memory representations to be more generalizable and consequently shape decisions that rely on such representations.
Altered Functional Connectivity Patterns Associated with Perceived Discrimination in Adolescents
Authors: Fields Christopher , Rodriguez Raimundo , Rosenblatt Matthew , Scheinost Dustin
Published: October 2024

Perceived discrimination is a pervasive social stressor with significant implications for adolescent mental health and neurodevelopment. Using resting-state functional magnetic resonance imaging (rs-fMRI) data from the Adolescent Brain Cognitive Development (ABCD) Study, we investigated the relationship between perceived discrimination and functional connectivity patterns in the adolescent brain. We applied a Network-Based Statistic (NBS) analysis to 268x268 connectome data from 5,084 participants who provided data on perceived discrimination. Perceived discrimination was coded as a binary variable (Yes/No) based on participants' responses to a validated discrimination scale. Our analysis identified two primary subnetworks associated with perceived discrimination: a positive subnetwork, characterized by increased connectivity between the right prefrontal cortex, left insula, and subcortical regions, and a negative subnetwork, marked by disrupted connectivity between the right prefrontal cortex and left temporal regions. The positive subnetwork suggests enhanced cross-hemispheric communication in adolescents reporting discrimination, while the negative subnetwork indicates reduced cross-hemispheric integration in those reporting no discrimination. Additionally, significant alterations in connectivity across large-scale brain networks were observed. Specifically, adolescents reporting discrimination exhibited increased connectivity between visual processing networks and regions involved in attentional control, while showing decreased connectivity in other network interactions. These findings offer novel insights into the neural mechanisms underlying the effects of perceived discrimination on adolescent brain function, particularly in regions related to emotion regulation, social cognition, and stress responses. Our results underscore the importance of considering discriminatory experiences in the context of adolescent neurodevelopment and mental health.
Dynamics of Spontaneous Thought: Insights from an Accumulation-to-Threshold Model
Authors: Kérébel Adrien , Sackur Jérôme
Published: October 2024

The dynamics of the stream of spontaneous thoughts has been the object of increasing research in recent years. Here, we study the timing of transitions from one coherent thought episode to the next as one aspect of such dynamics. Participants were asked to either perform spontaneous word production or to let their mind wander during runs of 2 to 3 minutes, and were instructed to report thought transitions with a key press. We first validate this subjective mental event segmentation, which enables us to measure the duration of coherent thought episodes. We then show that the timing of thought transitions is best explained by an accumulation-to-threshold mechanism. We further find that the threshold of this accumulation – but not the drift rate – negatively correlates with participants’ trait tendency for mind-wandering, highlighting the role of mental impulsivity in thought transitions.
Finding Emotion in a Rural Diary, 1916–18: A Research Note
Authors: Jenson Jane
Published: October 2024

A 65-year old farmer and forestry worker in Quebec’s Eastern Townships, John Buzzell, kept a diary from March 1916 until December 1918. Although in the third year he lived in the urban setting of Paris, Ontario, it is a typical example of a rural work diary, recording the weather, listing details of his workday, and describing family’s and neighbours’ activities and health. Such journals furnish social historians with rich detail about rural life but little about the emotions and sensibilities of their authors. This research note proposes and uses two systematic practices, or tools, for addressing the well-known analytic difficulty of recognizing the non-dit and extracting emotion from rural work diaries. Focusing on literary and physical conventions of composition and structured comparison, these two practices can unpack emotions such as sorrow, pride, pleasure, nostalgia, anxiety, and loneliness and help lift the veil of discretion about public and family affairs. Many other kinds of journals or memoirs similarly contain little explicit expression of emotion, and the two tools described in this research note may open more sources and archives, as well as lowering the risk of selecting on the dependent variable, choosing for the study of emotions only diaries that include their unmediated expression.
Tratamento com células-tronco mesenquimais para aplasia medular felina
Authors: Cassaniga Rafaela , Cassaniga Roberta , Silva Mariana Aimee Ramos Xavier da , Lo Turco Edson Guimaraes , Harkin Todd Anthony
Published: October 2024

Treatment with mesenchymal stem cells (MSC) is one of the emerging therapies in regenerative medicine. Administered intraosseously to access the bone marrow, it represents a promising treatment modality for both degenerative and non-degenerative diseases, such as medullary aplasia. This condition is characterized by pancytopenia and involves the replacement of hematopoietic tissue by pathological tissue. Medullary aplasia can be acute or chronic and may be caused by infections, neoplasms, drugs, toxins, radiation, or be idiopathic when other causes are excluded. Diagnosis necessitates a comprehensive hematopathological investigation. This paper reports the case of a female feline treated in July 2020, of no defined breed, neutered, aged two years and eight months, who presented with nonspecific clinical signs, including anorexia, apathy, and pallor of the mucous membranes. The presumptive diagnosis of medullary aplasia was made based on a thorough review of the patient’s history and supportive diagnostic tests, which included hematological tests showing recurrent pancytopenia (anemia, thrombocytopenia, lymphopenia), ultrasounds, serum biochemistry, and positive serology for Feline Leukemia (FeLV); in addition to interventions like blood transfusions and prescribed treatments. Treatment with stem cells provided by the PET MEP Laboratory was administered intraosseously, resulting in symptomatic improvement and expedited control of hematological parameters. In conclusion, intraosseous stem cell therapy can serve as a supportive treatment for medullary aplasia, as demonstrated in this feline, who achieved excellent results. However, continued specialized veterinary monitoring is imperative, assessing the necessity for ongoing application maintenance.
Anatomoradiological comparison between the minipterional and supraorbital eyebrow approaches to the interpeduncular region
Authors: Torregrossa Fabio , De Bonis Alessandro , Nizzola Mariagrazia , Saez-Alegre Miguel , Bauman Megan M. J. , Leonel Luciano , Graepel Stephen , Esposito Giuseppe , Grasso Giovanni , Lanzino Giuseppe , Peris Celda Maria
Published: October 2024

OBJECTIVE

Advances in surgical technology and microneurosurgery have led to increased utilization of so-called minimally invasive approaches, including the supraorbital eyebrow (SE) and minipterional (MPT) approaches for lesions involving the interpeduncular region. This study aimed to describe and compare anatomical landmarks, along with highlighting the advantages and disadvantages of the SE and MPT approaches to the interpeduncular region.

METHODS

Ten formalin-fixed, latex-injected cadaveric specimens were used to perform bilateral SE and MPT approaches to the interpeduncular region. The operative depth of each approach to key anatomical landmarks was measured. Forty-five axial thin-slice computed tomography studies were reviewed to calculate the operative angles, with consideration of the midline as a reference. A 3D interactive anatomical model generated through the photogrammetry scanning technique was described.

RESULTS

The depths of the operative corridors of the SE and MPT approaches to the interpeduncular fossa were 83.4 ± 1.8 mm and 67.7 ± 3.2 mm, respectively (p < 0.001). The mean angle of the MPT approach to the interpeduncular fossa was significantly wider than the one provided by the SE approach (39.9° ± 5.1° vs 28.4° ± 3.6°, p < 0.001). The interpeduncular region can consistently be accessed through the carotid-oculomotor triangle with the SE approach, as well as with the MPT approach. Furthermore, the SE route offered adequate access to the interpeduncular fossa through the opticocarotid triangle. The MPT route provided direct access to the upper prepontine cistern and anterior mesencephalic zone (AMZ).

CONCLUSIONS

The MPT approach provides a wider and shorter operative corridor and can be employed for lesions in the interpeduncular region with extension to the prepontine cistern and ventrolateral midbrain lesions requiring access through the AMZ. The SE approach is better suited for ventromedial midbrain lesions requiring access via the interpeduncular fossa safe entry zone. Additional studies analyzing these approaches in a clinical setting will help to delineate their reliability and efficacy.
Calcified Hofmann’s ligaments as the cause of spinal cerebrospinal fluid leaks associated with spinal ventral dural tears
Authors: Takai Keisuke , Endo Takeaki , Komori Takashi
Published: October 2024

OBJECTIVE

Patients with spinal CSF leaks often have ventral dural abnormalities (type 1 CSF leaks); however, the pathological mechanism for developing dural abnormalities is unknown. The authors investigated whether calcified dural ligaments contribute to the development of ventral dural tears, which cause spinal CSF leaks.

METHODS

Consecutive patients diagnosed with type 1 CSF leaks who had spiculated spinal lesions between 2010 and 2024 were included. Clinical, radiological, surgical, and histological findings were reviewed.

RESULTS

Nineteen patients with type 1 CSF fistulas had spiculated spinal lesions (15 men; median age 47 years, range 28–71 years). Spiculated lesions showed a high density on CT, and the median lesion length was 3.5 mm (range 1.6–9.1 mm). Spiculated lesions were consistently located at the center of the ventral dural abnormalities, penetrated the dura mater, and were located in the high thoracic spine (T1–5) in 13 patients (68%) and in the low thoracic spine (T8–12) in 6 (32%). These spinal lesions were connected to the posterior longitudinal ligament, but not to the vertebral body or disc. Histologically, they did not include degenerative osteophytic or discogenic tissues, mostly comprised fibrotic tissues with some calcification, and were consistent with calcified dural ligaments.

CONCLUSIONS

The anatomical characteristics of spiculated spinal lesions associated with ventral dural abnormalities are consistent with those of calcified dural ligaments, referred to as Hofmann’s ligaments. These ligaments are important for neurosurgeons, neurologists, and neuroradiologists who diagnose and treat type 1 CSF fistulas.
Predictors of postsurgical retethering in pediatric fatty or tight filum terminale: a systematic review and meta-analysis of 1167 patients
Authors: Smith Parker D. , Guirguis Mina , Farid Michael , Darko Kwadwo , Bhalla Shubhang , Wang Jason , Barrie Umaru , Whittemore Brett
Published: October 2024

OBJECTIVE

The objective of this study was to characterize pediatric patients with tight filum terminale (TFT) or fatty filum terminale (FFT) who experienced retethering after transection of the filum, and to determine the risk factors for retethering.

METHODS

A systematic review was conducted on May 31, 2023, using PubMed, Google Scholar, SCOPUS, and Web of Science databases according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines to identify studies detailing retethering following transection for TFT or FFT. Studies were then screened using the Newcastle-Ottawa Scale for risk of bias assessment.

RESULTS

Eleven articles met the inclusion criteria with an overall cohort of 1167 patients evaluated for retethering following transection for TFT or FFT. The combined retethering rate across all retrospective studies was 3.4% (95% CI 1.6%–5.2%). A random-effects model was used to estimate the prevalence of presenting symptoms, with the most common being lower-extremity weakness in the overall cohort (54.5%, 95% CI 32.6%–76.4%) and bowel or bladder dysfunction in the retethered cohort (57.9%, 95% CI 41.1%–74.8%). Patients who experienced retethering had a similar estimated prevalence of low-lying conus (71.1%, 95% CI 45.1%–97.1%) compared with the overall cohort (51.1%, 95% CI 39.3%–63.0%). The most common complication following surgery for the overall cohort was a wound complication (2.7%, 95% CI 0.8%–4.6%). Postoperative CSF leakage (OR 13.8, 95% CI 3.9–49.4) was a strong predictor of retethering. Sensory changes at initial presentation were also found to be a predictor of retethering (OR 2.9, 95% CI 1.3–6.5). Low-lying conus was not predictive of retethering.

CONCLUSIONS

Preoperative sensory changes and postsurgical CSF leakage were associated with an increased retethering rate following transection of the filum in cases of tethered cord syndrome secondary to fatty filum terminale.
Floristic findings of Vaucheria (Xanthophyceae) in Armenia and Azerbaijan
Authors: Vishnyakov V. S.
Published: October 2024

Based on herbarium material and the author’s collections, new records of three Vaucheria species from seven localities in the South Caucasus are presented. V. canalicularis and V. racemosa are newly recorded in Armenia. New localities in Azerbaijan are cited for V. dichotoma.
Dynamic input–output balance as a tool for structural policy analysis
Authors: Toroptsev E. L. , Kandokhova M. M. , Gudieva N. G.
Published: October 2024

This article extends the array of tools available for the analysis and advancement of structural policies using dynamic inter-sectoral balance, expressed in the form of a system of ordinary differential equations. This development became achievable following the publication of the authors’ methods for digitizing and calibrating such a structural model, thereby transforming it from a set of “purely theoretical constructs” into a set of computational and pragmatically valuable models. Formally, the digitization process for the model involves the introduction and computation of the eigen (intra-industry) and mutual (inter-industry) inertia matrices, the elements of which are time-dependent. These matrices substitute the conventional incremental capital intensity matrix within the model. It is worth noting that, unlike other scientific summaries, the matrix of incremental capital intensity is nowhere to be found in global statistics. No statistical institute worldwide develops or publishes it for any economy. The second factor that enhances the practical utility of the model lies in the utilization of the matrix of financial flow coefficients for its calibration. The computations conducted and presented here lead to the conclusion that the model is proficient in providing robust forecasts of gross output in current and comparable prices within the timeframe covered by Rosstat’s basic “input–output” tables. In its current format, the model holds potential as a valuable tool for scrutinizing structural changes within the domestic economy and for comparing Russia’s economic trends with those of other developed and developing nations. Digitizing it for use at the regional level would enable similar analyses on a mesolevel scale.
Quality of life modeling in Saint Petersburg and the Northwest regions
Authors: Okrepilov V. V. , Gagulina N. L.
Published: October 2024

Subject: application of the quality economics methodology to obtain scientifically based assessments of the quality of life in the regions of the Northwestern Federal District. The purpose of the study: research development related to the search for possible areas of impact on the socio-economic system that contribute to improving the population’s quality of life in the context of digitalization (according to the data from St. Petersburg and the regions of the Northwestern Federal District). In the course of the study, a quality of life model was created for the regions of the Northwestern Federal District. A basic and comprehensive assessment of the quality of life was carried out, so now we can trace the more than ten-year dynamics of the indicator, group the regions, identify and justify their common and accusatory features in the context of the study. An analysis of individual characteristics of the quality of life in the Northwestern Federal District regions has shown that it is possible to measure the contribution that medical and demographic conditions, socio-economic well-being, comfort and safety of the living environment make to the quality of life indicator. Based on the results of the study, it was concluded that it is important to assess the contribution of these components to determine the direction of regional development policy. In the interests of revealing promising opportunities for obtaining algorithmic solutions in the field of standardization of quality of life management in the region, a new format of a multi-level quality management system is proposed. The use of a digitalized format for managerial decision-making in a multi-level quality management system will greatly increase their effectiveness by expanding the capabilities of analyzing complex data without clear relationships, including for forecasting and optimizing processes occurring at the local, regional, and national levels.
Ecosystem model of development of the unmanned aircraft systems industry
Authors: Bystrov A. V. , Radaykin A. G. , Zagumennov F. A. , Butenko Yu. V.
Published: October 2024

The article analyzes the structural transformations of Russian industry in the context of external constraints and the need to ensure technological sovereignty in high-tech industries. The scientific hypothesis of the work is the assumption of the importance of cross-sectoral coordination of subjects of industrial policy in order to develop the production of critical products. The digital industrial ecosystem of the unmanned aircraft systems (UAS) industry is considered as an object of research. The purpose of the research is to develop the foundations of the structure of the ecosystem model of the development of the UAS industry and substantiate the feasibility of its application in the interests of improving high-tech industries of the Russian Federation. The article offers the author’s interpretations of the concepts of “digital industrial ecosystem” and “cross-industry ecosystem”, substantiates the principles of functioning of the ecosystem model and its architecture. An ecosystem model of the development of the UAS industry was developed, including management bodies, technical infrastructure, organizational and economic tools, technological clusters and a network of participants. The main distinguishing features of the proposed model from the existing ones are: the distribution of ecosystem management bodies that ensure the autonomy of management at all horizontal and hierarchical levels of its organization; the ecosystem is considered as an instrument of the mechanism of strategic development of high-tech industries involved in the creation of civil-purpose UAS, and provides cross-industry interaction of participants in order to accelerate the development of industrial production and the formation of the UAS market. The ecosystem management model will ensure the possession of up-to-date data of actual and planned indicative evaluation indicators of the state and development of the industry on a time scale close to real, based on the principle of digital transparency.
Agent-oriented model of three-level hierarchical minimax management of a regional industrial complex
Authors: Akberdina V. V. , Shorikov A. F. , Korovin G. B. , Sirotin D. V.
Published: October 2024

The developed countries experience indicates the relevance of managing problems of the territorial industrial complexes and the need to create and develop applicable models based on modern approaches that take into account uncertainty and the possibility of management optimizing. The methodological basis of the research was the theory of industrial economics, the theory of economic and mathematical modeling, the theory of optimal control, optimization theory, and game theory. The model uses an agent-oriented approach, methods of economic and mathematical modeling, methods of building management systems of socio-economic systems, a minimax approach. Three-level management model of the regional industrial complex is proposed, its hierarchical subject-object structure is determined. The parameters of industrial facilities are presented in the form of a phase vector, and for each agent the structure of control and information links, algorithms for the choice of control actions are formalized. The problems of forming minimax control actions sets for each agent, solved in the course of using the model, are formulated, and a general consistent algorithm for choosing optimal control actions is proposed. The developed model will make possible to implement it in a software environment and create a tool for modeling the processes of managing the regional industrial complex, and in future — a flexible extensible software toolkit for managing industry at the regional level is to be created.
Juridical Review Of Mediation Legal Products Outside Court In Connection With Supreme Court Regulation Number 1 Of 2016 Regarding Mediation Procedure In Court
Authors: Sanjaya Arie Supriadi , Guntara Denny - , Abas Muhammad -
Published: October 2024

The social dynamics that stand up in recent times maintain to amplify so all of sudden that it has caused the formation of intense opposition schemes in all factors of life that involve stakes and social forces. Conflicts, disputes, and argumentative debates are one of the efforts made through humans to defend their stance and popularity inside the approach of conducting an hobby. Disputes stand up due to the truth there are several interests that conflict with every one of a kind. Basically, dispute resolution can be finished in  methods, what's generally used is dispute resolution via the courts, then with the development of human civilization, dispute resolution outside the court has moreover advanced. The hassle is how the implementation of mediation outdoor the court is connected to Supreme Court Regulation Number 1 of 2016 concerning Mediation Procedures in Court and the way binding prison pressure is to the legal products because of mediation outdoor the court docket docket. The technique approach used is normative juridical approach. The result of the studies is article 36 wherein the parties without or with the help of a certified Mediator who efficiently treatment disputes outdoor the Court with a Settlement Agreement can put up a Settlement Agreement to the prepared Court to achieve a Settlement Deed by means of submitting a lawsuit and attached with a Settlement Agreement and files as evidence that suggests the legal relationship of the Parties with the object of the dispute and the peace agreement due to the mediation technique out of doors the court docket docket is best an regular settlement but in fact it's miles all sufficient and is finality.
The Dilemma Of Indonesia’s Coal Policy In 2020-2060: A Modality Of State Revenue
Authors: Mulyono Andreas Tedy , Sihombing Eka N.A.M.
Published: October 2024

Coal commodity management policies in Indonesia are closely related to efforts to reduce carbon emissions and increase carbon sequestration. This has the potential to create regulatory synchronization problems because it relates to sectoral challenges from the relevant ministries and/or agencies. To describe the synchronization problem, this research uses a normative juridical method with a statute approach and a conceptual approach. The results of this study are that there are three ministries that are directly or indirectly related to coal management, namely the Ministry of Energy and Mineral Resources, the Ministry of Environment and Forestry, and the Ministry of Finance. The conclusion is that although the 2005-2025 national development target has been announced by the Government, particularly regarding the NZE2060 target, it turns out that the implementation of the regulations in the three ministries has experienced predicaments that have resulted in a dilemma of synchronizing the national climate policy. However, short-term policies implicitly indicate the modality of state revenue as a priority
Examining the Authority Relationship Between the Center and Regions in Determining Policy Authority and Regional Interests
Authors: Purba Ahmad Rusly
Published: October 2024

The relationship between the central and regional governments always has an integrated hierarchical connection. This relationship is linked in the documents of the National Medium-Term Development Plan (RPJMN) and the Regional Medium-Term Development Plan (RPJM Daerah). The integration of regional authority is an extension of central authority, encompassing the management and formulation of policies, financial management, as well as the management of natural resources owned by the region. All these authorities share the common goal of enhancing the region's capability to realize progress and self-reliance. Governance is related to functions such as leading, guiding, commanding, mobilizing, coordinating, supervising, and motivating in governance relationships. In modern governance, some experts categorize government functions into four parts: services (public service), development, empowerment, and regulation. If the government can effectively carry out its functions, it is assumed that services will lead to justice, empowerment will result in self-reliance, and development will create prosperity. Ultimately, in its implementation, regional autonomy is a partial decentralization of authority from the central government to the regional government to be independently managed as their domestic affairs. Granting autonomy to regions must be based on factors that ensure the concerned region is capable of managing its own household.
THE SOVEREIGNTY, INDEPENDENCE AND FOOD SECURITY POST THE OMNIBUS LAW ON JOB CREATION
Authors: Suryani Suryani , Handriatni Ari
Published: October 2024

Food is the most important basic human need guaranteed in the 1945 Constitution of the Republic of Indonesia. The existence of the law on Job Creation will allegedly move Indonesia away from the goals of food sovereignty, independence and national food security. This research examines further the extent of legislation in the field of food and agriculture in order to realize food sovereignty, independence and food security as state goals. The research method used in this research is normative juridical research, namely research intended to study the application of rules or norms in positive law. The research approach used is a statutory approach. The results of this research are: 1) Food sovereignty, independence and food security as the embodiment of the constitutional mandate to achieve state goals, namely the welfare and prosperity of the people; 2) The existence of the Job Creation Law which encourages economic growth through easy investment policies to encourage the creation of jobs, has degraded food sovereignty and independence and placed greater emphasis on aspects of food security through food imports; 3) Control over the conversion of sustainable agricultural land and spatial planning policies as mandated by law is distorted by the presidential decree on national strategic projects which are hierarchically under the law