bluuebunny/crossref_metadata_2025 huggingface dataset:
Experience in conducting human-dimensional examination of innovative projects
Authors: Shapovalova Inna
Published: July 2024

The article proposes methodological and methodological foundations for conducting a human-dimensional examination of innovative projects for the agro-industrial complex. The concept of human-dimensional expertise is proposed as an interdisciplinary assessment of the significance and forecasting of the prospects for use, socio-economic efficiency, risks, threats and consequences of the implementation of intersectoral innovation for the quality of life of a person, territorial population, and society. The article provides a step-by-step technology for conducting a human-dimensional examination. An example of such an examination is presented on the example of one of the projects of the Scientific and Educational Center "Innovative Solutions in Agroindustrial Complex" (Belgorod Region) on the topic "Creation and implementation of technology - an innovative analytical tool for assessing and shaping human resources in the agro-industrial complex of the Belgorod Region". As part of the demonstration, estimates of the main and industry indicators are presented, the positive and negative human-dimensional effects are highlighted, the conclusion on the conditions and restrictions on the implementation of innovations in the agro-industrial complex is justified. It is proposed to consider the proposed innovation for two levels of implementation: administrative-regional and individually-locally. The concentration of risks and negative probabilities identified by experts at the second level made it possible to put forward a proposal to refine the innovation before its final use, which made it possible to prevent possible social risks for the industry and the region.
GTM-120 micro gas turbine engine noise identification
Authors: Czarnecki Michał Leszek , Lech Aleksandra
Published: July 2024

Micro gas turbine engines are a popular subject in research activities. Most of them consider performance measurements, and vibration analysis that are related to operating running engines. Operating even small-size engines causes potential risk to operator health. The research problem was to identify the acoustic flow field from the front and back of the operating GTM-120 engine. The research was divided into three parts: identify noise at various rotational speeds, identify an acoustic field of the engine, and identify noise level at additional points. Obtained results identify that noise from such a small engine at the range of 67 to 109 dbC is harmful and unpleasant to people who are within a radius of 15 meters from the engine. The final conclusion is that installing mufflers for any size of turbomachinery should be mandatory.
THE EFFECTS OF SOCIAL ASSISTANCE PROGRAMS ON STUNTING PREVALENCE RATES IN INDONESIA
Authors: Munawaroh Siti , Fajri Moh Najikhul , Ajija Shochrul Rohmatul
Published: July 2024

Background: Social assistance, such as Non-Cash Food Assistance (BPNT) and the Family Hope Program (PKH), is among the instruments used to eradicate stunting in the short and long term. Therefore, it is important to ensure that individuals effectively use it.
Aims: This study aimed to review the effect of social assistance on stunting prevalence rates in Indonesia.
Methods: This research employs a quantitative approach, utilizing numerical measurements and statistical analysis. The data is secondary and sourced from the Central Bureau of Statistics and the Ministry of Finance. The specific method applied is the generalized method of moments (GMM) dynamic panel regression. The research sample encompasses panel data from 34 provinces from 2015 to 2021. This study utilizes the indicator of very short height for children less than five years of age as a proxy for stunting. Furthermore, low height in children is adopted as a measure of stunting. Furthermore, this study adopted a measure of low height in children to indicate stunting.
Results: The results showed that social assistance negatively affected stunting, supported by various other indicators such as the proportion of proper sanitation, the average length of schooling, protein consumption, and drinking water sources. Meanwhile, excessive calorie consumption increases stunting in a certain period.
Conclusion: In this condition, government social assistance was urgently needed since access to the lowest decile households increased stunting rates. The practical implications for policy derived from these findings involve optimizing the efficiency of social assistance initiatives, emphasizing the significance of addressing environmental factors in programs aimed at preventing stunting, integrating health and nutrition initiatives, and implementing educational campaigns within communities to raise awareness about calorie consumption.
Keywords: child health, social assistance, stunting, toddlers
Physicians of the camp in Bereza Kartuska in 1934-1939: dilemmas of serving in the repressive apparatus of an authoritarian state
Authors: Kopociński Krzysztof , Kopociński Zbigniew
Published: July 2024

. W artykule przedstawiono funkcjonowanie służby zdrowia obozu w Berezie Kartuskiej. Istniał on w latach 1934-1939 i był miejscem, w którym przetrzymywano przeciwników politycznych obozu sanacyjnego, który sprawował wówczas władzę w Polsce. Dopuszczano się tam w stosunku do osadzonych tortur psychicznych i fizycznych. Funkcję lekarza obozu pełniło dwóch lekarzy wojskowych, mjr dr. K. Dietl i kpt. dr S. Gutowski. Prowadzili oni Ambulatorium i Izbę Chorych, a w razie konieczności przekazywali pacjentów do Szpitala Powiatowego w Kobryniu. Każdy z nich na miarę swoich umiejętności zawodowych i doświadczenia starał się nieść pomoc osadzonym więźniom politycznym.
Desigualdades regionais na enumeração dos registros de óbitos fetais nos sistemas de informações sobre estatísticas vitais no Brasil
Authors: Marques Lays Janaina Prazeres , Silva Zilda Pereira da , Almeida Marcia Furquim de
Published: July 2024

Este estudo tem por objetivo analisar a variação do número de óbitos fetais informados entre o Sistema de Estatísticas Vitais do Registro Civil (RC) e o Sistema de Informações sobre Mortalidade (SIM) e comparar a tendência da taxa de mortalidade fetal (TMF) de ambos os sistemas no Brasil, para o período 2009-2019. A variação percentual (VP) foi analisada por meio da comparação entre as fontes de dados para os óbitos fetais precoces (<28 semanas) e tardios (≥28 semanas). Os clusters de unidades da federação foram obtidos pelo método k-means. Aplicou-se a regressão linear generalizada de Prais-Winsten na análise da tendência da TMF. O SIM demonstrou percentual de captação 27,7% superior ao RC no período estudado. Houve maior número de óbitos fetais informados no SIM para o Brasil e regiões, em ambos os estratos de óbitos. As regiões Norte e Nordeste apresentaram as maiores VP em oposição às regiões mais desenvolvidas do país, Sudeste e Sul, onde verificou-se uma convergência de 95%. Apesar da redução da VP na década analisada, as estimativas de tendência da TMF permaneceram subestimadas no RC. Conclui-se que a captação dos óbitos fetais foi maior no SIM, sobretudo nas regiões Norte e Nordeste, reconhecidas como as mais vulneráveis do país.
Research on improving the efficiency of electricity transmission
Authors: Barbashov Igor Volodymyrovych , Omelianenko Halyna Viktorivna , Cherkashyna Veronika Viktorivna , Shmatov Anton
Published: July 2024

A study of ways to modernize the current-carrying part of overhead lines to improve the efficiency of electricity transmission through the use of innovative types of wires was conducted. The technical and economic characteristics of AC, ACCR, and AERO-Z wires were analyzed. The results of the analysis revealed that further improvement of the design of AC wires should be based on new progressive developments that would meet such technical requirements as reliability, survivability and durability; corrosion resistance; high adhesion ability; resistance to vibration during operation under the influence of adverse climatic factors; resistance to environmental temperature effects. As an innovative solution to this issue, high-temperature (ACCR) and specially designed (AERO-Z) wires have been developed in foreign countries. A comparative analysis of the types of wires used in Ukrainian power grids with innovative types of wires used in power grids of foreign countries was performed. The results of the comparison of AC, ACCR, and AERO-Z wires show that the factor that limits the scope of application of ACCR wire, even for spans with extremely high requirements for power transmission characteristics, is its extremely high cost. This is because the technical characteristics of this wire are better than those of AC wire and it has a relatively low cost compared to ACCR wire, and its special design is adapted to adverse climatic conditions that affect the characteristics of electricity transmission.
Fuzzy logic-based estimation model of distribution transformers aging
Authors: Nozdrenkov Valerii Stanislavovych , Diahovchenko Illia Mykolaiovych , Petrovskyi Mykhailo Vasylovych , Volokhin Vitalii Vasylovych
Published: July 2024

Currently, we are moving towards more ecological modes of transport. As a result, the demand for electric vehicles is growing exponentially, and new loads, related to charging, can negatively affect the operation of electrical grids and their elements. Concurrent and uncontrolled charging of electric vehicles can cause a blackout. Considering the stochastic nature of the additional load from electric cars, it is difficult to predict such a load by analytical methods. The fuzzy logic approach can be used to formalize the tasks with ambiguity. In this paper, a fuzzy-based block diagram of the algorithm was developed in the MATLAB-Simulink environment for evaluating the impact of the charging load of electric vehicles on the aging of transformers, as well as a model was built and the effect of various penetrations of electric cars was evaluated. The fuzzy logic-based model includes the effects of ambient temperature, power quality, and overloads. It contains a diagnostic part that warns the dispatcher of the power distribution network about possible problems, providing up-to-date information about the state of the transformer. In addition, the efficiency of photovoltaic generators to increase the service life of distribution transformers was analyzed. The results show that photovoltaic power plants are not effective enough for high levels of electric vehicle penetration, and more advanced strategies should be used.
Formation the coefficient of growth for the power scale of transformers taking into account the operational indicators of substations
Authors: Baklytskyi Vladyslav Mykolayovych
Published: July 2024

The article describes the sequence of formation of the growth coefficient of the transformers power scale, taking into account the operational indicators of substations. For this purpose, an expression for finding the optimal power of 110 kV transformers has been developed on the basis of a technical-economic model of costs for the transformation of electrical energy. The developed expression is used to find the optimal power of transformers of 110 kV in conventional units, taking into account the load of substations, which is the basis for the formation of the growth coefficient of the transformers power. The search for optimal power was performed on the basis of deviations of the indicators of the maximum load of transformers and the time of maximum losses. The time indicators of maximum losses and maximum load are calculated according to the hourly load data of transformers, taking into account the presence of generation nodes on the secondary voltage buses. The formation of the growth coefficient of the scale of transformers is performed by finding the mathematical expectation of the optimal power and its shift based on the boundaries of the distribution of two adjacent powers of transformers. The substantiation of the formed coefficient of growth of the transformers power was performed according to the criterion of minimum technological losses of electrical energy, by comparing the daily loses schedules in transformers. According to the research results, it follows that the application of the obtained coefficient allows to reduce the level of technological losses. The study was carried out on the example of operating substations with two-winding transformers of 110 kV using the scheme of the established mode of operation of the electric network.
Methods for calculating the moisture discharge characteristics of insulators
Authors: Shevchenko Sergii , Danylchenko Dmytro , Hanus Roman , Varvianska Viktoriia
Published: July 2024

This paper presents a detailed analysis and comparison of methods for calculating the moisture discharge voltage of insulators. The initial section provides a brief overview of the principles underlying air discharge along the surface of insulators, which is crucial for understanding moisture discharge processes. Two primary calculation methods for moisture discharge voltage are considered. The first method is based on Tepler's formula, which requires specific input data that can only be obtained experimentally. Although this approach is classical, it complicates practical application due to the difficulty of acquiring the necessary parameters under real-world conditions. The second method, described in the literature, relies on readily available data, significantly simplifying the calculation process. Based on this method, an automated tool for calculating the moisture discharge characteristics of insulators has been developed. The use of this tool reduces dependency on experimental data, providing accurate results with minimal time and resource expenditure. To demonstrate the effectiveness of the proposed tool, a moisture discharge characteristic calculation was performed for the insulator type LK 70-110. According to the analysis results, the moisture discharge voltage for this insulator is 549 kV, with a stress of 2.1 kV per centimeter of leakage current path length. These figures align with the average values obtained using the first method, confirming the reliability and accuracy of the new approach. The conclusions indicate that the second calculation method is fully satisfactory for standard insulator calculations. It can also be applied in specific conditions, such as under-chemo-substations, where precision and efficiency are critically important. Thus, the proposed calculation method can become an effective tool for engineers and researchers involved in the design and analysis of insulation systems. This work significantly contributes to the development and improvement of methods for assessing the moisture discharge characteristics of insulators, representing an essential step towards enhancing the reliability and safety of electrical networks and their operation.
Komunikasi Persuasif Pimpinan Dalam Membentuk Karakter Santri Di Pondok Pesantren Azhar Center Kecamatan Kualuh Selatan Kabupaten Labuhan Batu Utara
Authors: Tanjung Amran Sahputra , Ahmad Sampurna
Published: July 2024

Tujuan penelitian ini adalah untuk mengetahui bagaimana cara komunikasi persuasif pimpinan pondok dalam membentuk karakter santri di pondok pesantren azhar center kecamatan kualuh selatan kabupaten labuhan batu utara. Metode yang digunakan dalam penelitian ini yaitu metode penelitian kualitatif deskritif. Metode penelitian kualitatif adalah penelitian yang menggunakan metode ilmiah untuk mengungkapkan suatu fenoma dengan cara mendeskripsikan data dan fakta melalui kata-kata secara menyeluruh terhadap subjek penelitian. Adapun teknik pengumpulan data yang dilakukan adalah dengan Metode Wawancara yang merupakan salah satu teknik pengumpulan data yang dilakukan dengan cara mengadakan tanya jawab, tanya jawab baik secara langsung maupun tidak langsung dengan sumber data. Adapun pengertian dari komunikasi persuasif ini adalah Seperti Menurut Simons mendefinisikan bahwa persuasif merupakan bentuk komunikasi manusia yang dirancang memang untuk mempengaruhi orang lain dengan merubah kepercayaan, nilai, dan sikap mereka. Hasil penelitian ini adalah mengetahui Hasil komunikasi persuasif yang dilakukan pimpinan pondok dalam membentuk karakter santri di pondok pesantren Azhar Center memberikan dampak yang signifikan. Santri di pondok pesantren Azhar Center menjadi lebih disiplin, sopan santun, memiliki akhlak yang mulia sesuai yang di inginkan pimpinan pondok pesantren dalam menjalankan keseharianya, seperti disiplin dalam membuang sampah pada tempatnya, disiplin waktu sholatnya, perkata lemah lembut kepada sesama, dan disiplin dalam mejalankan aturan yang telah dibuat pimpinan pondok pesantren untuk menjadi penghafal Al-Quran dan menjadi santri berkehidupan berpegang dengan Al-quran dan hadist, serta menjadi santri yang hidup berpegang dengan sunnah-sunnah rasul.
Penggunaan Media Digital Dalam Rangka Peningkatan Pengetahuan Kepemiluan Di Wilayah Kota Jakarta Timur
Authors: Muharto Heru , Effy Zalfiana Rusfian
Published: July 2024

KPU merupakan lembaga penyelenggara pemilu yang terdiri dari tiga tingkatan yakni KPU RI pada Tingkat Nasional KPU Provinsi pada tingkat daerah dan KPU Kabupaten/Kota pada tingkat kota masing-masing memiliki tupoksi dan tata kerja yang berstruktur sesuai dengan PKPU nomor 3 Tahun 2020 tentang Perubahan atas Peraturan Komisi Pemilihan Umum Nomor 8 Tahun 2019 Tentang Tata Kerja Komisi Pemilihan Umum , Komisi Pemiliahnn Provinsi, Komisi Pemilihan Umum Kabupaten/Kota. KPU Jakarta Timur pada Tahun 2019 mendapatkan predikat Partisipasi pemilih terbaik dan pelayanan serta partisipasi pemilih akses atau disabilitas dengan menggunakan metodologi kualitatif kepustakaan. KPU Kota Jakarta Timur melakukan maneuver dengan menggunakan media digital dalam rangka melakukan sosialisasi dan publikasi informasi yang memang pada kurun waktu saat ini media digital merupakan media yang efektif dan efisien termasuk tatap muka yang kini menggunakan aplikasi daring atau telekonferensKeyword : Literasi politik, Media Digital, Computer Mediated Communication
ANALISIS HASIL CETAKAN MATERIAL POLYPROPYLEN BENTUK BOTOL MENGGUNAKAN METODE INJECTION BLOW MOLDING
Authors: Sugiyanto Didik , Wicaksono Enggar Darmawan , Daryus Asyari
Published: July 2024

The process of forming materials is often carried out in the manufacturing industry, especially in the process of forming plastic materials. One method is the injection blow molding, which is done by blowing air into a mold that has been previously designed. The need for a level of precision and accuracy in designing a mold using the injection molding process is one of the important things in the injection blow molding process. One of the designs that must be considered when printing a bottle-shaped product is that it must be precise, in accordance with the expected product design, by considering machine and mold design, material selection, molding materials, and manufacturing processes. The aim of the research is to determine the influence of temperature and pressure on thickness and shrinkage in molds with 30 ml bottle shape. From the results of tests that have been carried out, the effect of a pressure of 4 bar and a temperature of 160 °C produces an average thickness of the mold of 1.03 mm, while at a pressure of 4 bar and temperature of 180 °C the average thickness is 1 mm. The standard used for bottle products is less than 1 mm so that the pressure 4 bar from the experimental results meets the standards for injection blow molding process mold results and for shrinkage occurs at 0.681 %.
PEMBUATAN PADUAN INTERMETALIK Mg2Si DENGAN DOPING BISMUTH SEBAGAI MATERIAL TERMOELEKTRIK
Authors: Adi Chandra Septian , Saprila Suherman Mila , Tjahjono Arif , Roberto Rahadian , Pria Utama Dedi , Noer Syahid Adi , Yunan Hasbi Muhammad , Dwi Yudanto Sigit
Published: July 2024

Increasing efficiency in gasoline fuel consumption in motorized vehicles is currently continuing. One way this is done is by making use of the energy that is lost during the combustion of a motorcycle engine. About half of the energy produced during burning will be lost due to heat energy and exhaust gases. This waste heat can be utilized by converting it into another form of energy. Thermoelectric materials are those that can convert heat energy into electricity directly. Thus, in this work, we synthesized the bismuth-doped Mg2Si thermoelectric material using a solid-state reaction method using a powder in a sealed tube technique. The initial step in the production process involves measuring the raw materials bismuth, silicon, and magnesium using the Mg2Si1-xBix formula (x = 0.00, 0.025, and 0.045). The raw material powder is grinded in a shaker mill before being sealed in a stainless steel tube. The powder is sealed in a tube and heated to 800 °C for 6 hours. According to XRD test results, the Mg2Si phase and Si and MgO phases have formed. The lattice constant of the cubic Mg2Si phase was found at ~0.636 nm. A SEM investigations of surface morphology suggest that bi-doping on Si sites influences grain size refinement. Therefore, it can be concluded that the Mg2Si intermetallic alloy production process was successfully completed.
THE INFLUENCE OF TILT ANGLE ON THE DAILY PROFILE TOTAL ENERGY OF PHOTOVOLTAIC POLYCRYSTAL
Authors: Aryaseta Bagas , Wardhani Primasari Cahya , Fauziyah Nur Aini , Alfiansyah Achmad Dzulfiqar , Munir Syahrul , Fatikasari Aulia Dewi , Puspitasari Nia Dwi
Published: July 2024

This preliminary study aims to determine the daily profile of the power output generated from solar panels, with variations in the house’s roof angles of 15º, 0º, 15º. Tilt angle investigation expects to discover the impact of placing solar panels on the slope of the tile used on the house’s roof. The collecting data of this study was investigated the data of current and voltage every hour that produced by solar panel. Besides, this study also comparing the result of total energy output value for daily profile of solar panel during ten hour per day (start from 7 am to 5 pm). The results show that solar panels with an angle of -15º at 07:00 – 10:00 WIB have higher output voltage and current than other angle variations. At a tilt angle of 0º, the output voltage and current of the solar panel are higher at 11:00-14:00 WIB, while at a tilt angle of 15º in the afternoon. Based on observations, each solar panel with exposure for 10 hours obtained the total energy value for polycrystalline solar panels with a tilt angle of -15º of 258.44 Wh, solar panels with an angle of 0º obtained an energy value of 263.64 Wh, and a tilt angle of 15º obtained energy values 260.69 Wh. The photonic energy emitted for 10 hours is 2097.47 Wh. The energy efficiency value for each polycrystalline solar panel is 12.32% for the angle of -15º, the angle of 0º is 12.57%, and 12.43% for the angle of 15º. In conclusion, variations in the angle of the solar panels have significant effect on the voltage, current, and energy generated from polycrystalline solar panels in every hour. However, based on the data result the total energy exposure and the efficiency value for each variation angle has no significant different. Pyramid-shaped house roof construction has the advantage of increasing the value of the cross-sectional area of the tile, which has the opportunity to install wider-sized solar panels so that a greater value of electrical energy is obtained.
Обзор международной научной конференции «XIII Смирновские чтения по логике»
Authors: Денисова Виктория Геннадьевна , Легейдо Мария Михайловна , Лисанюк Елена Николаевна , Сироткина Людмила Сергеевна
Published: July 2024

В статье кратко освещается прошедшая в июне 2023 года международная научная конференция «XIII Смирновские чтения по логике». Предлагаются аннотации докладов, прочитанных на пленарном заседании и в рамках заседаний секций «Символическая логика», «Философская логика», «Логика научного познания» и «История логики».
Paridad de género y productividad:
Authors: Cárdenas Greissly , Romero Valbuena Héctor Luis , Fajardo Ortiz Eddy Johanna
Published: July 2024

La paridad de género se ha asociado con una mayor productividad en las empresas; sin embargo, varios estudios empíricos han presentado resultados mixtos. Este estudio analiza la relación entre la paridad de género y la productividad de las empresas de la industria manufacturera en Colombia, en el periodo 2000-2019. La metodología consiste en utilizar el modelo de Levinsohn y Petrin (2003), para calcular la productividad total de los factores a nivel de empresa y modelos de datos de panel, con el fin de detallar el efecto de la paridad de género en la productividad. Los resultados reflejan que la participación de la mujer en esta industria ha disminuido, influenciada principalmente por una reducción en la participación de las obreras. Por otro lado, existe una importante segregación en la industria, con una alta concentración de mujeres en actividades como la confección de prendas de vestir, y una participación limitada en actividades como la fabricación de productos metalúrgicos. Las estimaciones indican que una composición de género más equilibrada en el personal administrativo y profesional, técnico y tecnológico, está relacionada con una mayor productividad, especialmente en las pequeñas y medianas empresas.
Nutrition's Double-Edged Sword: Understanding the Surprising Effects of Common Foods on Bones through a Cross-Sectional Study
Authors: Amin Ayesha
Published: July 2024

Osteoporosis, one of the most common bone diseases, affects 200 million people worldwide. Although medications are available to control the progression of this disease and to improve bone health, there are certain complications associated with almost all of them. This observational descriptive cross-sectional study examined the association between dietary habits and bone pain among 300 healthy individuals aged 19 to 35 years. Weekly dietary intake of milk, carbonated drinks, broiler chickens, fruits, and vegetables was assessed, and associations with bone pain were quantified using a bone pain score. Statistical analysis revealed a significant inverse relationship between milk consumption and bone pain (p < 0.001), whereas increased vegetable, carbonated drink, and broiler chicken intake were associated with higher bone pain scores (p < 0.001, p = 0.001, and p = 0.033, respectively). These findings suggest that certain dietary components significantly influence bone health and may guide nutritional recommendations for bone health preservation.
Robot in the Loop: An Ethnography-Based Approach to Robotics and Reinforcement Learning to Support On-Site Construction Work
Authors: Wu Yuning , Erdolu Emek , Wei Jiaying , Oh Jean , Llach Daniel Cardoso
Published: July 2024

Construction is one of the world’s largest and least automated industries, relying on the cooperation of multiple people with diverse skillsets in labor intensive, physical tasks. Since the 1980s, efforts to introduce robots into construction contexts have mostly focused on automating discrete tasks or monitoring site activities. In this paper, by contrast, we show how robots might be designed to adaptively support the cooperative work of construction teams. Following an indicative review of the state of the art in construction robotics, the paper shows how a detailed ethnographic study of construction workers shaped the design, development, and evaluation of a robot able to assist a team of carpentry workers by delivering tools and hardware during the installation of formwork panels. The resulting prototype is a building companion rover guided by state-of-the-art deep reinforcement learning (DRL) methods and an innovative social navigation stack. Through quantitative and qualitative evaluations in lab settings and on a construction site, we show how the rover can adaptively support carpentry workers taking their specific workflow into account. By documenting these technical and conceptual contributions, we hope to bring ”robotically-supported construction” into focus as a domain of interest for the construction robotics community.
Preparation and tissue structure analysis of horse bone collagen peptide
Authors: Wu Jindi , Na Heya , Bai Fan , Li Siyu , Gao Hao , Sha Rina
Published: July 2024

Horse bone is rich in collagen, with a composition similar to that of human collagen. Collagen peptides supply nutrients needed for human growth that act as antioxidants, lower blood pressure. This study explored the extraction of collagen and the preparation of collagen short peptides from Mongolian horse bones. Bones were collected from horses of varying ages, and the collagen content along with calcium salt distribution were observed through staining and imaging analyses. Next, the bones were processed into a powder and then subjected to ultra-high-pressure processing for degreasing. The degreasing conditions were optimised by single-factor and orthogonal tests. Following this, collagen was extracted using an acid-enzymatic method, and its structural characteristics and thermal stability were assessed. The collagen short peptides were extracted from the collagen samples, and the effects of the enzymatic hydrolysis time, temperature, pH, and enzyme amount on the extraction rate were evaluated. Finally, the resulting collagen peptides were analysed for antioxidant activity. In summary, this experiment optimised the extraction conditions for horse bone collagen, demonstrating that the ultra-high-pressure method minimally affects collagen structure, and the extraction rate was high. Hence our method has significant development potential.
Addition of lidocaine to prophylactic ondansetron and dexamethasone in high-risk children for postoperative vomiting: A randomised, controlled, double-blinded study
Authors: Xu Jin-fei , Du Ming-cheng , Chen Yi , Hu Yang , Long Xiang , Jiang Jing-jing , Gong Yuan
Published: July 2024

A combination of dexamethasone, ondansetron, and total intravenous anaesthesia (TIVA) is recommended as prophylaxis to prevent postoperative vomiting (POV) in high-risk children. Implementing TIVA in paediatric anaesthesia presents challenges due to its widespread ease of use. Regarding lidocaine’s antiemetic effect in paediatric patients, incorporating lidocaine can mitigate POV in high-risk children. Among 204 children undergoing elective tonsillectomy (with/without adenoidectomy), those with a postoperative vomiting score ≥ 4 were randomised into Group C (saline) and Group L (lidocaine). The primary outcome was the incidence of POV at 24 hours postoperatively. The secondary outcome was the number of coughs at 30 minutes postoperatively. The POV incidence differed with 15 patients in Group C (14.7%) and 5 in Group L (4.9%) presenting with one or more episodes of POV (P = 0.019). The number of coughs at 30 minutes postoperatively differed between Group L (1[0–2]) and Group C (1[0–2]) (P = 0.007). A lower percentage of patients experienced adverse events in Group C (2.2%) compared with Group L (1.1%) (P = 0.567); no severe events occurred. Adding lidocaine to ondansetron and dexamethasone is effective in reducing the POV incidence and extubation coughs in high-risk children following volatile anaesthesia for tonsillectomy.
Dictionary-based T2-mapping with multi-echo turbo-spin echo
Authors: Badrieva Zilya , Brui Ekaterina , Mayenne Charles-Alexis , Rapacchi Stanislas , Troalen Thomas , Bendahan David
Published: July 2024

Multi-echo turbo-spin echo (ME-TSE) is a pulse sequence commonly used for T2 mapping in MRI. As compared to other pulse sequences such as MESE, ME-TSE is largely faster. It has been previously shown that dictionary-based T2-mapping can be used to provide accurate T2 values from MESE datasets but the corresponding accuracy on ME-TSE datasets has never been assessed. In the present study, we aimed to investigate the impact of combining effective echo signals in a ME-TSE pulse sequence on the accuracy of T2 mapping using a dictionary-based reconstruction method. We initially compared three different combinations of echo signals on phantom scans and identified the corresponding differences. We then determined the best combination among them. In the pulse sequence with an echo train length (ETL) of 3 and 3 contrasts, we found that the most accurate and homogeneous combination was achieved when the first echo was assigned to the center in the first contrast, the second echo in the second contrast, and the third echo in the third contrast. Next, we compared the use of dictionaries generated for a single slice versus multiple slices (N = 5) in the reconstruction process for this specific combination. The dictionaries were generated using a Bloch simulator, taking into account the saturation effect between slices during dictionary generation for the multi-slice case. Our results show that using single-slice dictionaries for reconstructing T2 phantom maps with no gap between slices can lead to variations in T2 values between slices. However, this variation can be reduced when using a multi-slice dictionary so that more accurate T2 values can be obtained.
Long-term Evaluation (10 Years) of the Outcomes of Herbst Functional Appliance in Pharyngeal Dimensions and Hyoid Bone Position in the Treatment of Class II Patients
Authors: Almeida Thagid Yasmin Leal , Fialho Tiago , de Freitas Karina Maria Salvatore , Henriques José Fernando Castanha , de Freitas Marcos Roberto
Published: July 2024

Objective: This study aimed to evaluate the long-term changes in the pharyngeal dimensions and hyoid bone position in Class II malocclusion patients treated with Herbst functional appliance.
Design: Retrospective cohort study.
Setting: Department of Orthodontics, Bauru Dental School, University of São Paulo – Brazil.
Methods: The sample comprised 15 skeletal Class II malocclusion patients (13.00 years old ± 1.21) treated with Herbst functional appliance and followed for a mean period of 10 years (10.73 years ± 3.67). Lateral headfilms were used to evaluate the pharyngeal dimensions and hyoid bone position, and the measurements were performed with Dolphin® Imaging 11.9. Intragroup comparison between the evaluation stages was performed with repeated measures ANOVA, followed by Tukey tests if necessary. Results were considered statistically significant at p<0.05.
Results: Regarding the pharyngeal cephalometric variables, only the lower airway space increased significantly in the treatment period, and all of them remained stable remained stable during follow-up period. The hyoid bone moved significantly forward and downward during the treatment period and even further forward during the long-term posttreatment period.
Conclusion: The outcomes of Herbst functional appliance in pharyngeal dimensions and hyoid bone position are stable over the years.
Plasma Ceramide: Monitoring Progression of Coronary Stenosis After PCI
Authors: zhang liang , Zhang Yang , Gao XinPing , Wang Da , Liang HuiQing , Tan DaWei , Zhang XinXing , Li LIN , Zeng Yong
Published: July 2024

Background
Patients with severe coronary artery stenosis have been found to exhibit higher levels of plasma ceramides compared to those with mild/moderate stenosis. This study aimed to investigate changes in plasma ceramides and low-density lipoprotein-cholesterol (LDL-C) levels in patients with progressive stenosis after undergoing percutaneous coronary intervention (PCI).
Method
This prospective study recruited patients with definite or suspected coronary artery disease (CAD) who underwent invasive coronary angiography (ICA) at Beijing Anzhen Hospital between March and August 2018. A total of 174 participants were enrolled in this study. The patients were categorized into two groups: PCI patients with severe stenosis (n = 55) and non-CAD patients (n = 119). Plasma concentrations of LDL-C and ceramides (Cer (d18:1/16:0), Cer (d18:1/18:0), Cer (d18:1/24:1), and Cer (d18:1/24:1)) were measured using liquid chromatography-tandem mass spectrometry (LC-MS/MS).
Results
PCI patients exhibited higher levels of plasma Cer (d18:1/16:0), Cer (d18:1/18:0), Cer (d18:1/24:1), Cer (d18:1/18:0)/Cer (d18:1/24:0), and Cer (d18:1/24:1)/Cer (d18:1/24:0) compared to non-CAD participants. Within 24 months, progressive stenosis occurred in 28 out of 55 PCI patients, who showed an increased fold-change in plasma levels of Cer (d18:1/16:0), Cer (d18:1/18:0), Cer (d18:1/24:1), and Cer (d18:1/24:0) within 15 months after PCI, whereas no similar changes were observed in stable stenosis patients. LDL-C levels decreased within 15 months after PCI in the progressive group.
Conclusion
The changes observed in plasma levels of Cer (d18:1/16:0), Cer (d18:1/18:0), Cer (d18:1/24:1), and Cer (d18:1/24:0), along with the decreased LDL-C in progressive patients. Regular monitoring of plasma ceramide levels could provide valuable prognostic information in patients after PCI.
`Virtual EMO-Mind´ for Primary School Students: Effects on Mindfulness Skills, Attention, Impulsiveness, and Emotional Stability
Authors: Olarza Amaiur , Aritzeta Aitor , Soroa Goretti , Aranberri-Ruiz Ainara , Mindeguia Rosa
Published: July 2024

Mindfulness, though beneficial, faces engagement challenges, particularly in children. Recognising the potential of virtual reality, this study pioneers a virtual mindfulness intervention called `Virtual EMO-Mind´ for school-aged students, aiming to enhance attention, impulsivity regulation, and emotional stability. With 511 participants aged 9 to 12 (Mage= 10.65 years; SDage= 0.69; 51.9% girls; 48.1% boys), a quasi-experimental design compared the intervention group (n = 432) to a control group (n = 79). The four-session `Virtual EMO-Mind´ programme included three phases: 1) A preliminary concentration activity, 2) The immersive mindfulness experiences in virtual environments representing different seasons, and 3) The conscious breathing activity. We used Student’s t statistic to compare the initial and final scores obtained in the experimental group. In addition, an analysis of covariance (ANCOVA) was conducted to explore differences between the experimental and control groups, as well as to analyse the differential effects of the programme on girls and boys, and on participants in Years 5 and 6. The results showed significant improvements in mindfulness skills, attention span, impulsivity regulation, and emotional stability. Participants reported motivation and a positive experience with virtual reality, indicating a well-received and engaging intervention. These findings support the potential of `Virtual EMO-Mind´ as an effective intervention for enhancing psychological well-being in school settings.
Association Between Chest Imaging and Persistent Symptoms: A Six-Month Follow-Up Study on COVID-19 SurvivorsChest imaging and COVID-19 persistent symptoms at six months follow-up.
Authors: Mantilla Alvaro Jose Lora , Ramirez Catalina Caceres , Gutierrez Maria Camila Ayala , Muñoz Maria Camila Amaya , Santos Diana Maria Valenzuela , Laitton Edgar David Gomez , Lopez Paul Anthony Camacho
Published: July 2024

Background: The COVID-19 pandemic remains a global challenge with over 750 million cases. Post-COVID-19 condition (PCC) involves persistent symptoms three months post-infection, affecting 30%-50% of recovered individuals for up to two years. Risk factors include female sex, smoking, lung disease, and severe initial infection. This article examines if initial chest radiological findings predict PCC.
Objective: This study aims to explore the association between initial chest radiological findings and the risk of PCC.
Materials and Methods: A single-center ambidirectional cohort study included 1063 COVID-19 patients with thoracic imaging within 72 hours of admission. Baseline data, clinical symptoms, and imaging findings were collected. Six-month follow-up telephone interviews assessed persistent symptoms and PCC development.
Results: 47.1% of patients developed PCC and 35% of these patients showed abnormalities in X-ray. Abnormal chest X-ray findings (RR: 1.19; 95%CI: 1.04-1.35), particularly ground glass opacities (RR: 1.18; 95%CI: 1.03-1.36), and multilobar involvement (RR: 1.348; 95%CI: 1.080-1.682) were associated with PCC at 6 months.
Conclusion: This study establishes a link between initial chest X-ray findings and PCC development. Despite limited literature support, our findings stress the prognostic value of early imaging in predicting long-term outcomes. Further research is needed to validate imaging's role in understanding and predicting PCC.
Comparison of the Effectiveness of Percutaneous and Open Surgery in Trigger Finger Disease
Authors: Varış Onur , Peker Gökhan
Published: July 2024

Introduction
Trigger finger (TF) or stenosing tenosynovitis, first described by Alphonse Nota in 1850, has a lifetime prevalence of 2% to 3% in the adult population and an annual incidence of 28 per 100,000. Conservative treatment methods for TF include activity modification, orthotic immobilization, hand therapy exercise protocols, nonsteroidal anti-inflammatory drugs, and steroid injections. Surgical treatment involves releasing the A1 pulley by open or percutaneous surgery.
Method:
After receiving approval from the Health Sciences University Trabzon Faculty of Medicine Scientific Research Ethics Committee, 367 of 478 patients who underwent surgical treatment with the diagnosis of trigger finger in our clinic between 01.01.2018 and 01.01.2023 were included in our study. Patients were divided into open surgery and percutaneous surgery groups according to the surgical method applied. Preoperative trigger severity was evaluated according to Quinell's rating, pain was evaluated with the visual analog scale (VAS), and function was evaluated with the Quick Disabilities of the Arm, Shoulder and Hand (Q-DASH) score.
Results
There were significant differences in the preoperative VAS, postoperative VAS, first month VAS, sixth month VAS, and first year VAS scores between the open technique surgery group (p<0.001) and the percutaneous technique surgery group (p<0.001).
Intergroup comparisons of Q-DASH scores revealedno significant differences in the preoperative (p=0.541), first month (p=0.231), sixth month (p=0.148), and first year (p=0.315) scores between the open and percutaneous surgery groups.
Conclusions
In our study, we found no significant differences in the results of the open and percutaneous surgery techniques we performed for the treatment of trigger finger disease. Several authors have reported differences between the results of open and percutaneous release techniques, while others have reported 100% success rates in grip strength, active range of motion of the proximal interphalangeal joint, and residual pain by both techniques.
Activated carbon-supported lanthanum nickel oxide (LaNiO3 ) perovskite nanocomposite supercapacitor electrode material exhibiting superior power-density and life cycle
Authors: Chowdhury Buddhodev , Sahis Amrit , Kuiri Bibhatsu , Patra Ardhendu , Dhak Debasis , Pal Sudipta
Published: July 2024

Perovskite LaNiO3 was synthesized with the help of the sol-gel method and LaNiO3@AC nanocomposite was produced via ultrasonication followed by filtration process keeping LaNiO3 and activated carbon (AC) in an NMP solvent. The prepared electrode material was then coated on Ni foam with a mass loading of 28 mg/cm2. Various well-known characterization techniques such as TGA, FTIR, XRD, FESEM, and XPS were used to characterize the crystal structure and surface morphology of the sample. The electrochemical performance of the prepared electrodes was measured with cyclic voltammetry (CV), galvanometric charge-discharge (GCD), and electrochemical spectroscopy (EIS) using 3 M KOH as an electrolyte solution in two electrode configurations. The pure LaNiO3 electrode exhibits a specific capacitance (Cs) of 177.53 F/g at 5 mV/s, cyclic stability with 73.35% capacitance retention after 3000 cycles, energy density of 24.65 W h/kg, and a power density of 1.48 kW/kg. whereas, The LaNiO3@AC nanocomposite electrode delivered a high Cs of 218.57 F/g at a 5 mV/s scan rate with excellent cyclic stability of about 94.57% specific capacitance retention after 3000 cycles, the outstanding energy density of 30.35 W h/kg with a high-power density of 1.58 kW/kg. Additional investigation on the storage contribution using Dunn's, b-fitting, and Randel Savic models produced superior results with the LaNiO3@AC nanocomposite electrode than with the LaNiO3 electrode. DFT analysis further demonstrated LaNiO3 material's strong electrochemical characteristics and stability. Thus, the LaNiO3@AC composite material can be the newest member of the supercapacitor electrode material with superior electrochemical performance.
Coronary cross-sectional area stenosis severity determined by coronary CT highly correlated with coronary functional flow reserve: a pilot study
Authors: Koumoto Takuto , Kusachi Shozo , Tomiya Takumi , Akagi Takuya , Kawamura Hiroshi , Hirohata Satoshi , Yamaji Hirosuke , Murakami Takashi , Kamikawa Shigeshi , Murakami Masaaki
Published: July 2024

Fractional flow reserve (FFR) is the gold standard for assessing the physiological significance of coronary stenosis. We examined the potential correlation between digitally measured coronary cross-sectional area stenosis by coronary CT angiography, and the FFR. We analyzed 32 consecutive patients with stenoses who underwent invasive FFR determination. The cross-sectional area was assessed using 128-slice coronary detector-based spectral CT angiography. Power analysis revealed that the sample size enabled the detection of an area under the receiver operating characteristic (ROC) curve (AUC) of 0.90. FFR ≤ 0.8 and > 0.8 were defined as FFR-positive and FFR-negative, respectively. Intra- and inter-observer differences were negligible. AUC indicated that cross-sectional area reduction effectively discriminated between FFR-positive and FFR-negative cases, yielding a sensitivity of 0.882 and specificity of 0.933 at the cutoff of 50% area reduction, with an AUC of 0.976. Lesions with less than 45% cross-sectional area reduction on coronary CT angiography were not FFR-positive. When ROC analysis was conducted for lesion characteristics, AUC did not significantly improve. In conclusion, the coronary cross-sectional area stenosis severity from coronary CT angiography distinguished between FFR-positive and FFR-negative lesions with high accuracy. Area reduction on CT angiography is indicated to be clinically useful for predicting the FFR.
The use of pyrophosphate scintigraphy to measure the heart-to-contralateral lung ratio in the presence of rib fractures overlapping the heart
Authors: SUYAMA JUMPEI , Takakuwa Chieko , Kawada Muneyuki , Shirakawa Yuya , Yokoyama Kenichi
Published: July 2024

Objective: Tc-99m-pyrophosphate has been used to evaluate amyloid transthyretin (ATTR) cardiac amyloidosis. Quantitative evaluation is widely performed by calculating the heart-to-contralateral lung (H/CL) ratio, but bone lesions may reduce measurement accuracy. We investigated the accuracy of the PYP-ROI software, developed by our group, in addressing the errors caused by bone lesions when measuring the H/CL ratio.
Methods: This retrospective study comprised 17 patients (mean age: 70.7 ± 13.9 years; male:female ratio 13:4) who underwent pyrophosphate scintigraphy to diagnose cardiac amyloidosis during March 2021–November 2021 and in whom cardiac amyloidosis was excluded clinically. None of the participants had rib fractures or other bone lesions. Simulated rib fractures were created, and the H/CL ratio was determined for various pathologies. The differences between these values and the H/CL ratios obtained from the original images were compared.
Results: Based on our findings, which confirmed the software’s utility, we recommend the following steps for imaging analysis. First, the accumulation in the fracture should be eliminated, by manual calculations in the absence of a removal function. Second, compensation for the removed part should be calculated using the average count of the surrounding area. Third, if the fracture accumulation is weaker than the sternal accumulation, the fracture should be included in the measurement. Fourth, if fracture uptake is clearly higher than sternal uptake, the impact is significant.
Conclusions: This study supports the utility of removing or compensating for the accumulation in rib fractures using PYP-ROI software. However, verification in larger clinical studies is required.