bluuebunny/crossref_metadata_2025_split huggingface dataset:
ANALISIS DAN PENERAPAN TOPIC MODELING PADA JUDUL TUGAS AKHIR MAHASISWA MENGGUNAKAN METODE LATENT DIRICHLET ALLOCATION (LDA)
Authors: Titiana Titiana , Bangkalang Dwi Hosanna 
Published: January 2024

Tugas akhir menjadi syarat kelulusan bagi mahasiswa program studi Sistem Informasi, Fakultas Teknologi Informasi, Universitas Kristen Satya Wacana. Penentuan judul tugas akhir di program studi, biasanya ditentukan sesuai konsentrasi. Namun, saat penentuan judul masih terdapat mahasiswa yang kebingungan karena tidak mempunyai referensi yang valid terkait gambaran judul di konsentrasi program studi. Sehingga, mahasiswa sering memasukan data kosong pada judul tugas akhir saat melakukan pendaftaran. Selain itu, program studi juga belum mempunyai informasi terkait pengelompokan judul tugas akhir mahasiswa. Oleh karena itu dibutuhkan topic modeling untuk mengetahui minat judul tugas akhir sebagai referensi mahasiswa dalam penentuan judul. Topic modeling dibuat menggunakan metode Latent Dirichlet Allocation (LDA) kemudian dibuat pengklasteran serta dilakukan evaluasi model menggunakan hyperparameter tuning dan coherence score sebagai alat ukur performa model. Tahapan penelitian meliputi studi literatur dan wawancara, pengumpulan dan analisis data, data pre-processing, pembuatan model, dan evaluasi. Diperoleh hasil bahwa mayoritas mahasiswa Sistem Informasi mengambil judul bertema Tata Kelola. Model yang dibuat memperoleh 4 cluster yaitu terkait Technology Acceptance Model, Framework Cobit, dan Arsitektur Enterprise. Setelah dilakukan hyperparameter tuning didapat coherence score sebesar 0,617789 dari yang sebelumnya 0,53448. Tujuan penelitian ini adalah memodelkan topik tugas akhir mahasiswa sebagai informasi cluster pengambilan judul tugas akhir dari peneliti mahasiswa terdahulu. Sehingga bermanfaat sebagai referensi pengambilan judul tugas akhir untuk mahasiswa sebagai dasar pengetahuan minat judul tugas akhir dan untuk memberikan pengetahuan dan kontribusi bagi program studi sebagai landasan penyesuaian judul tugas akhir mahasiswa, konsentrasi serta pengembangan kurikulum.
Two-photon decay of the pseudoscalar meson in the relativistic quark model
Authors: Haurysh V. Y. , Andreev V. V. 
Published: January 2024

In the relativistic quark model, based on the point form of Poincaré-invariant quantum mechanics, an integral representation of the form-factor of the pseudoscalar P0(π0,η,η′) meson of P0 (qq̅)→γγ decay is obtained taking into account the anomalous magnetic moments of u-, d- and s-quarks. IIn the developed formalism the values of the constituent quark masses and the parameters of the wave functions are calculated using the lepton decay P±(qQ̅ ) → ℓ±νℓ± constant fP± and the pseudoscalar density constant gP±. It is shown that taking into account the gluonium component in η/η′-mesons and using the structure functions of light sector quarks lead to the behavior of the form factors of pseudoscalar π0-, η-, η′-mesons in the area of a small transferred momentum to the lepton pair, which is consistent with the modern experimental data
Back Bay Battery Simulation Reflective Essay
Authors: Deng Tianyang 
Published: January 2024

The success of an organization’s innovation strategy relies on a clearly defined innovation theme. In this article, the author will delve into the concept of disruptive innovation and explore how to achieve Horizon 2 ideas. Horizon 2 ideas involve extending the business’s current model and core competencies to reach new customers, markets, and even new business objectives in different segments. The business model extension under Horizon 2 focuses on the organization’s mid-term goals, typically taking 24 to 36 months to yield results. Drawing insights from the Harvard Business Review’s Back Bay Battery (BBB) simulation, this article presents the implementation of an innovation strategy within the BBB company. The aim is to assist the company in enhancing its business model and transitioning into the high-end market. The latter part of the article will shed light on the challenges associated with implementing this strategy in a real-world firm and the results it can deliver to the organization. Specifically, it will explore the effectiveness of the strategy in achieving disruptive innovation within the employee market, where the company intends to use the new business model to tap into new markets.
Justification of the maximum single maximum permissible concentration of dimethyl sulfoxide in the atmospheric air of urban and rural settlements
Authors: Novikova Irina I. , Ogudov Aleksandr S. , Chuenko Natalia F. , Bolshakov Vyacheslav S. , Kozyreva Fatima U. , Bokareva Natalia A. 
Published: January 2024

Introduction. Atmospheric air pollution by volatile sulfur compounds is one of the most urgent environmental and hygienic problems. However, the maximum single maximum permissible concentration (MPC) of dimethyl sulfoxide in the atmospheric air of urban and rural settlements has not yet been established.
The study aims to substantiate the maximum single maximum permissible concentration оf dimethyl sulfoxide in the atmospheric air of urban and rural settlements.
Materials and methods. White mongrel male rats weighing 180–240 gr., dimethyl sulfoxide (DMSO), CAS No. 67-68-5. The authors conducted the study in accordance with the current regulatory, methodological and instructional documents. Experts conducted surveys of experimental animals according to a generally accepted and unified methodology. Statistical processing of the research materials was carried out using standard Statistica 10.0 application programs.
Results. During the study of dimethyl sulfoxide, researchers found that the threshold of acute inhalation general toxic effect (Limac) is a concentration of 2.4±0.09 mg/m3, the threshold of irritant effect (Limir) is 0.6±0.03 mg/m3, the odor threshold (Limolf) is 1.741 mg/m3. Unpleasant odors and general toxic effect of the substance are prevented by a concentration of 0.6 mg/m3, irritant effect — a concentration of 0.3 mg /m3.
Conclusion. In accordance with the principle of the limiting index of harmfulness, a concentration of 0.3 mg/m3 is recommended as the concentration of dimethyl sulfoxide (DMSO) in the atmospheric air, which prevents odors, general toxic and irritating effects.
Ethics. The material of the article was approved by the Ethics Committee at the Novosibirsk Research Institute of Hygiene of Rospotrebnadzor (No. 1 of January 21, 2022).
Hygienic assessment of the chemical factor of working conditions and respiratory disorders in metalworking workers
Authors: Raikova Svetlana V. , Novikova Tamara A. , Komleva Nataliia E. , Mazilov Svyatoslav I. , Trubetskov Alexey D. 
Published: January 2024

The study of the function of external respiration for the purpose of prenosological diagnosis of respiratory pathology related to work is an urgent task in the development of measures for the prevention of health disorders in
workers.
The study aims to conduct a hygienic assessment of the chemical factor of working conditions and indicators of respiratory function in metalworking workers engaged in the metalworking process using lubricant cooling liquids.
We have examined 250 male workers of the Saratov metalworking enterprise. The main group consisted of 145 people working in contact with lubricants and coolants, the control group consisted of 105 people not in contact with lubricants and coolants. The researchers have conducted a hygienic assessment of the chemical factor of working conditions in the workplace and a spirometric study of the function of external respiration in workers. The results of the study were statistically processed using the Statistica 10 program. The concentrations of chemicals in the workers' breathing zone comply with the hygienic requirements for the air of the working area corresponding to permissible working conditions (Class 2). According to spirometry data, the researchers have identified respiratory function values corresponding to the appropriate values, in the absence of statistically significant differences in spirometric indicators between the main and control groups.
To identify the etiological contribution of chronic exposure to lubricants and coolants to the formation of respiratory pathology of workers, it is necessary to conduct additional in-depth clinical, laboratory, functional and epidemiological studies taking into account pollutants present in the air of the working area and their combined effects.
Ethics. The studies were conducted in compliance with Ethical standards and principles of conducting medical research with human participation, set out in the Helsinki Declaration of the World Medical Association (ed. 2013). Written consent of respondents was obtained to participate in the study. The study was approved by the local Ethical Committee of the Saratov Hygiene Research Center of the Federal State Budgetary Institution "Federal Research Center for Medical and Preventive Technologies of Public Health Risk Management" (Protocol No. 10 of 03/16/2023).
Agitator and Fluid Mixing Fundamentals for Quench Tank Applications
Authors: Csiszar Pete 
Published: January 2024

Abstract
The role of a mixer/agitator in quenching applications is to control the mixing environment in order to meet the process criteria. This article provides the basic fundamentals of the sizing of agitators, tank geometry importance, and other considerations for the application of agitators in quench tanks. It also discusses the differing methods for the sizing and selection of agitators for quench tank applications.
Advanced Industrial Quench System Design—Fluid Dynamics Analysis
Authors: Acosta-González Francisco Andrés 
Published: January 2024

Abstract
Computational fluid dynamics (CFD) provides an efficient, alternate, virtual approach for simulating and analyzing quenching processes with an impact on component design, manufacturing process, and quality. This article provides domain insights for quenching researchers and CFD practitioners for the modeling of the industrial quenching process and for supporting the diverse multifunctional needs in an industry, ranging from primary metallurgical companies (steel, aluminum, and other alloys), original equipment manufacturers, engineering companies, captive and commercial heat treating facilities, quench system manufacturers, and quench fluid suppliers. It describes the governing differential equations for the fluid flow and heat-transfer phenomena during quenching. The article also discusses different modeling categories to determine a CFD methodology for quenching.
Multiphase friction calculation peculiarities based on models implemented in the "d-Flow" software package
Authors: Matroshilov N. O. , Krylov A. M. , Kozlov M. G. , Lyhin P. A. , Usov E. V. , Tailakov D. O. , Ulyanov V. N. 
Published: January 2024

In order to ensure efficient and safe operation of oil and gas fields, a tool is required to design production wells and surface infrastructure. It is important to take into account the physical processes that occur during production, as well as fluid properties and phase transitions. The "d-Flow" software package enables the creation of a comprehensive field model based on geological and field data to calculate hydraulic losses of pipelines and forecast hydrocarbon production. The fluid flow modelling is based on the calculation of multiphase friction with the wall of a well or a pipeline. The article discusses the implementation of four friction models: the Beggs-Brill model, the Gray model and its modification, and the Mukherjee-Brill model. The purpose of this work is to compare the predictions of friction models with the results obtained using commercial realizations of the same models. The results of the Schlumberger PIPESIM hydraulic simulator calculations were used as a benchmark for comparison with the "d-Flow" models. Numerical experiments were conducted to investigate two-phase flow under varying well geometry and flow regimes. The models used were compared, and the results showed that the predicted liquid holdup had an average relative error of 0.06%. In some cases, the error was as low as 0.02%. The predicted cumulative pressure drop in the well did not exceed 0.34% for all considered models. Based on the comparison results, we conclude that the "d-Flow" software package is suitable for calculating pressure drop in wells of different geometry and surface networks.
Helichrysum arenarium as a source of flavonoids: Evaluation of antimicrobial activity and flavonoid content of extracts of Helichrysum flowers in vitro
Authors: Badalyan Asya , Abrahamyan Syuzanna , Abovyan Arevik , Badalyan Armen , Semerjyan Gayane , Hovhannisyan Narine 
Published: January 2024

Background: Helichrysum (family Asteraceae, kind of H. armenium, subfamily of Asteroideae) is known in Armenian traditional medicine for its diuretic, antioxidant, choleretic and anti-inflammatory properties. Studies have shown that Helichrysum flowers have a high content of flavonoids. In this study, we investigated the impact of various extraction process parameters on the yield of flavonoids obtained from Helichrysum flowers in Armenia. Subsequently, a comprehensive antimicrobial assay was conducted on the ethanol and aqueous extracts derived from the dried flower heads of Helichrysum. Objective: The objective of this study is to explore the influence of extraction process parameters on the yield of flavonoids from H. arenarium flowers and to determine their antibacterial activity.Methods: Antibacterial activity was determined using the agar-well diffusion method against four bacterial species (E. coli, Salmonella enterica, Staphylococcus aureus and S. typhimirium). The assessment of the total flavonoid content in the ethanol extract of Helichrysum was conducted using the AlCl3 method, following the procedure outlined by Andreeva and Kalinkina. Results: The ethanolic and aqueous extracts demonstrated antibacterial activity against Staphylococcus aureus ATCC 6538 and Bacillus Subtilis 168. However, no significant activity was observed against Escherichia coli ATCC 8739 and Salmonella Typhimurium ATCC 14028. The research findings affirm that the extract derived from everlasting flowers exhibits antimicrobial properties, particularly targeting Gram-positive bacteria. Conclusion: The results of our tests indicate that the extract of Helichrysum belonging to Armenian flora, is rich in flavonoids and has significant antimicrobial activity and may find application in the food industry, as well as in organic agriculture.Keywords: Helichrysum, plant extracts, flavonoids, antimicrobial activity, spectrophotometry
Prevention of non-specific back pain through exercise and education: A systematic review and meta-analysis
Authors: Hernandez-Lucas Pablo , Leirós-Rodríguez Raquel , Lopez-Barreiro Juan , García-Soidán José L. 
Published: January 2024

BACKGROUND: Clinical practice guidelines stress the importance of prevention and treatment of non-specific back pain through exercise therapy. However, it has not yet been confirmed whether the combination of exercise plus education is more effective than such interventions taken separately. OBJECTIVE: To determine if the combination of exercise plus education is more effective for the prevention of non-specific back pain than exercise or education alone. METHOD: A systematic search of studies whose sample consisted of participants without non-specific back pain (primary prevention) and participants with non-specific back pain (secondary and tertiary prevention) was conducted in the following databases in March 2023: PubMed, Scopus, Web of Science and Medline. RESULTS: A total of 16 articles were selected. Statistically significant results were found in the pain variable with SMD =-2.02 (95% CI =-2.71 to -1.33; p< 0.001), the disability variable with SMD =-1.14 (95% CI =-1.63 to -0.65; p< 0.001), and the kinesiophobia variable with SMD =-1.8 (95% CI =-2.54 to -1.05; p< 0.001). CONCLUSION: Interventions that combine exercise and education seem to have a greater preventive effect on non-specific back pain, disability and kinesiophobia than those that include exercise or education in an isolated manner.
Effects of osteoarthritis grades on pain, function and quality of life
Authors: Cihan Emine , Şahbaz Pirinççi Cansu , Leblebicier Merve Akdeniz 
Published: January 2024

BACKGROUND: Osteoarthritis (OA) is a pathology that frequently affects the geriatric population. OBJECTIVE: To investigate the extent to which pain, functionality, and quality of life change over the progression of OA grades. METHOD: The study included 161 patients with bilateral OA, whose disease stages ranged from 1 to 4 according to the Kellgren-Lawrence radiographic classification system. Pain was assessed using the Visual Analog Scale (VAS), functionality using the two-minute walk test and the Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) questionnaire, and quality of life using the Nottingham Health Profile (NHP). RESULTS: There were significant differences between the groups in terms of age, weight, and body mass index. The VAS, two-minute walk test, and WOMAC scores also significantly differed between the groups (p< 0.05). There was a significant difference between the groups in all domains of the NHP, except for energy (p< 0.05). The two-minute walk test score was negatively correlated with all the remaining evaluation parameters (p< 0.05). No correlation was found between the energy domain of the NHP and body mass index, the VAS score, the two-minute walk test distance, or the total WOMAC score (p> 0.05). CONCLUSION: After grade 1, the functional impacts of OA on patients increased by an average of four times. Pain was one of the most basic symptoms, the severity of which started to increase in grade 2. With the added effect of diminishing walking capacity over time, the reduction in the quality of life of the patients accelerated as the OA grade progressed.
Does TNF-α 308 G/A (rs1800629) gene polymorphism associate with liver and pancreas disorders in Iraqi adults with beta thalassemia major?
Authors: Luaibi Hawraa Allawi , Mohammed Bushra Jasim 
Published: January 2024

BACKGROUND: TNF-α has been considered as the key regulator of inflammatory responses and is known to be participated in the pathogenesis of several diseases. OBJECTIVE: The aim of this study was to explore the relationship of (rs1800629) gene polymorphism associated to liver and pancreas disorders in sample of β-thalassemia major adult Iraqi Patients. MATERIAL AND METHOD: Blood samples were obtained from 40 patients suffered from beta thalassemia with pancreas disorder, along with 40 patient suffered from thalassemia with liver disorder, and 40 patient suffered from thalassemia without pancreas or liver, from Ibn Al-Baladi Hospital, Baghdad, and 40 samples from age and gender-matched apparently healthy individuals as control group, all subjects with age more than 18 years. TNF-308G/A (rs1800629) gene polymorphisms were assessed by Tetra- ARMS-PCR. RESULTS: The result of showed that heterogeneous GA and homogeneous AA genotypes were higher, while GG wild genotype was lower in beta thalassemia major patients with liver and pancreas disorders compared to control group. CONCLUSION: It can be concluded that the prevalence of TNF-α 308 G/A SNP plus (A) allele could be associated with risk of liver and pancreas disorders in sample of beta thalassemia major adult.
Depression and Agitation Factors Are Related to Regional Brain Atrophy and Faster Longitudinal Cognitive Decline in Mild Cognitive Impairment
Authors: Marin-Marin Lidón , Renau-Lagranja Julia , Ávila César , Costumero Víctor 
Published: January 2024

Background: Neuropsychiatric symptoms (NPS) are a common aspect of Alzheimer’s disease (AD). Multiple studies have investigated its brain correlates, but it still remains unclear how they relate with brain atrophy in mild cognitive impairment (MCI). Objective: Our objective was to investigate brain volume in MCI patients as a function of NPS. Methods: We measured grey matter volume, neuropsychological status and NPS (Neuropsychiatric Inventory, NPI), in a sample of 81 MCI patients (43 females). Participants were divided in groups depending on presence (NPS+) or absence (NPS–) of NPS and on type of NPS. Results: We found lower volume of left temporal pole in patients with depression compared to NPS– (p = 0.012), and in patients with agitation compared to NPS– in the right middle occipital gyrus (p = 0.003). We also found a significant correlation between volume of left temporal pole and MMSE (r (78)  = 0.232, p = 0.019). Finally, NPS+ presented lower cross-sectional cognitive level than NPS– (t (79)  = 1.79, p = 0.038), and faster cognitive decline (t (48)  = –1.74, p = 0.044). Conclusions: Our results support the colocalization of structural damage as a possible mechanism underlying the relationship between MCI and depression and provide novel evidence regarding agitation. Moreover, our longitudinal evidence highlights the relevance of an adequate identification of NPS in MCI patients to identify those at risk of faster cognitive decline.
Long Term Safety Analysis of BBV152 Coronavirus Vaccine in Adolescents and Adults: Findings From a One-Year Prospective Study in North India
Authors: Kaur Upinder , Jaiswal Aakanksha , Jaiswal Ayushi , Singh Kunal , Pandey Aditi , Chauhan Mayank , Rai Mahek , Kansal Sangeeta , Patwardhan Kishor , Jaisawal Vaibhav , Chakrabarti Sankha Shubhra 
Published: January 2024

INTRODUCTION: Evidence on long term safety of COVID-19 vaccines is scarce. Here in continuation of our previously published results on short term safety, we provide data on long term safety of the BBV152 vaccine in adolescents and adults.

METHODOLOGY: This was a prospective observational study conducted from January 2022 to August 2023. Adolescents and adults receiving BBV152 vaccine were interviewed telephonically about long-term adverse events of special interest (AESIs) after one year of vaccination. Risk factors of AESIs and AESIs persistent for at least one month were identified.

RESULTS: Out of 1024 individuals enrolled, 635 adolescents and 291 adults could be contacted on one year follow-up. Viral upper respiratory tract infections (URTIs) were reported by 304 (47.9%) adolescents and 124 (42.6%) adults in this period. New onset skin and subcutaneous disorders (10.5%), general disorders (10.2%) and nervous system disorders (4.7%) were the common AESIs in adolescents. General disorders (8.9%), musculoskeletal disorders (5.8%) and nervous system disorders (5.5%) were the common AESIs in adults. Menstrual abnormalities were noticed in 4.6% females. Ocular abnormalities and hypothyroidism were observed in 2.7% and 0.6% participants respectively. Serious AESIs including stroke and Guillain-Barre syndrome were identified in around 1% participants. Among adolescents, females, those with history of allergy and post-vaccination typhoid were respectively at 1.6-, 2.8- and 2.8-times higher risk of AESIs. Majority of the AESIs were persisting at one year follow-up. Females, adolescents with pre-vaccination COVID-19, those with co-morbidities, and post-vaccination typhoid had respectively 1.6-, 2-, 2.7- and 3.2-times higher odds of persistent AESIs. Adults with co-morbidities had more than two 2 times higher odds of AESIs and persistent AESIs.

CONCLUSION: The patterns of AESIs developing after BBV152 differed from those reported with other COVID-19 vaccines as well as between adolescents and adults. With the majority of AESIs persisting for a significant period, extended surveillance of COVID-19 vaccinated individuals is warranted to understand the course and outcomes of late onset AESIs. Relationship of AESIs with sex, co-morbidities, pre-vaccination COVID-19 and non-COVID illnesses should be explored in future studies.