bluuebunny/crossref_metadata_2025_split huggingface dataset:
Economic Analysis of Mobile Thermal Energy Storages as Complement to District Heating
Authors: Resch Alois , Dehner Harald 
Published: October 2023

Abstract
Urban areas are increasingly supplied by district heating networks (DHN) because this technology is reliable, provides easy handling for the customer and contributes to the required reduction of greenhouse gas emissions if it is operated from renewable sources. Waste heat from the industrial sector can serve as such, however, industrial plants are often not in the meaningful range of DHN, as they are mostly located in the periphery. For this reason, the application of mobile thermal energy storages (M-TES) is investigated by the present research work. M-TES systems are technically capable of exchanging heat between a DHN and heat sources or heat sinks, as previous studies have shown, but economic viability could not be reached with former energy prices. However, geopolitical incidents of 2022 resulted in massive fluctuations on the energy markets and unpredicted price increases. Therefore, this paper provides an updated analysis of M-TES, considering the premises of 2022. An economic model according to VDI2067 was developed for calculating the costs of transported heat for different storage technologies and materials. Moreover, transportation by a Diesel driven truck was compared to an electric driven one. The updated analysis yielded economic feasibility for specific M-TES configurations, achieving minimum heat costs of € 89.5 per MWh. This is equivalent to a reduction of 40.3 % related to the prices of conventional district heating in Austria by end of 2022.
The Development and Evaluation of the Slovenian Version of the Early Childhood Oral Health Impact Scale (ECOHIS-SVN)
Authors: LIKAR OSTRC Lenka , FRANKOVIČ Sabina , PAVLIČ Alenka 
Published: October 2023

ABSTRACT

Introduction
There has been no valid and reliable instrument available to measure the impact of oral health on the quality of life of Slovenian preschool children. The main aim of this study was to develop and evaluate the validity and reliability of the first Slovenian instrument assessing Oral Health-Related Quality of Life (OHRQoL) preschool children: the ECOHIS-SVN.

Methods
The ECOHIS-SVN was developed using forward-backward translations and with the participation of children aged under six and their parents. The children’s teeth were examined, and parents were asked to complete questionnaires, including the ECOHIS-SVN. The internal consistency of ECOHIS-SVN was evaluated through the calculation of Cronbach’s alpha (α), test-retest reliability with an intra-class-correlation coefficient (ICC), convergent validity with Spearman’s rank correlation (r) and criterion validity with the Mann-Whitney test. The association between the ECOHIS-SVN score and parents’ age, educational level, self-reported oral health and OHIP-SVN14 was estimated using multiple linear regression.

Results
In the study, 255 children participated, with a mean age of 4.8 years (±0.8). The ECOHIS-SVN questionnaire was completed by the parents of all 255 children and re-filled by 71 parents. The results of the total ECOHIS-SVN scale include α=0.85, ICC=0.85, and r=0.6-0.75. A statistically significant association was found between the ECOHIS-SVN and parents’ age and between the ECOHIS-SVN and parents’ OHIP-SVN14 in the whole group and in the subgroup of children with no teeth affected by cavitated caries (dmft=0) (p=0.025, p=0.028), respectively.

Conclusion
ECOHIS-SVN enables further studies to assess the OHRQoL of preschool children in the Slovenian-speaking population.
Vitamin D Supplementation During COVID-19 Lockdown and After 20 Months: Follow-Up Study on Slovenian Women Aged Between 44 and 66
Authors: VIČIČ Vid , PANDEL MIKUŠ Ruža 
Published: October 2023

ABSTRACT

Introduction
The main objective was to assess the impact of the COVID-19 pandemic on vitamin D supplementation habits and their changes in the follow-up, 20 months after the study in Slovenian premenopausal and postmenopausal women.

Methods
A cross-sectional study was conducted between March and May 2021. 176 healthy women aged 44 to 65 from the Central Slovenian region were included in the final analysis. Vitamin D status was determined by measuring 25(OH)D concentration. After 20 months an online follow-up questionnaire was sent out, to which 123 participants responded with complete data.

Results
Between March and May 2021, 61% of the participants were supplementing vitamin D. 55% of the supplementers and 88% of the non-supplementers had insufficient levels (total 25(OH)D <75 nmol/L). After 20 months in the follow-up, it was found that 62% of participants were taking vitamin D supplements, but only 70% of those who had initially reported taking supplements were still doing so. In the follow-up 61% of participants stated that they started or increased vitamin D intake due to COVID-19.

Conclusions
Vitamin D supplementation increased 7-fold compared to pre-pandemic levels and remained at a high level after 20 months. However, a significant number of participants discontinued supplementation, and only one-fifth were taking vitamin D throughout the entire year. Supplementation is effective for vitamin D deficiency prevention only at the individual level, however due to low compliance it should not be the only strategy for preventing vitamin D deficiency in the population.
Sintesis Nanopartikel Perak Menggunakan Ekstrak Metanol Daun Nipah (Nypa fruticans) sebagai Agen Antibakteri
Authors: Az-Zhahra Fatimah , Naspiah Nisa , Febrina Lizma , Rusli Rolan 
Published: October 2023

Nanopartikel adalah suatu bentuk inovasi penghantaran obat menggunakan metode pereduksi biologi (bioreduktor). Perak merupakan suatu agen antibakteri saat keadaan nano yang memiliki aktivitas lebih baik dibanding bentuk bulknya. Daun nipah (Nypa fruticans) merupakan suatu agen bioreduktor digunakan untuk mereduksi perak menjadi nanopartikel perak (ukuran 60-80 nm). Hasil pengujian antibakteri terhadap bakteri Eschericia coli 10,504 mm dan bakteri Staphylococcus aureus 9,393 mm.
Moluskisida Kombinasi Mikroenkapsulasi Daun Kacang Babi, Daun Serai Wangi, dan Kitosan sebagai Pembasmi Keong Mas pada Tanaman Padi
Authors: Kusumaningtyas Valentina Adimurti , Amisa Devitri , Sujono Hernandi , Budiman Senadi , Sukrido Sukrido , Yuliana Trisna , Melina Melina , Syah Yana Maolana , Juliawaty Lia Dewi , Setiawati Tia , Rosdiana Endang 
Published: October 2023

Abstract
In this research, acombination biopesticide, a combination biopesticide from Tephrosia vogelii leaves and Cymbopogon nardus leaves has been made as an exterminator of golden snail in rice plants. The golden snail is one of the plant pest organism in rice plants which are capable of damaging plant in a short time. This study aim to determine the efficacy of a combination biopesticide of a mixture of T. vogelii leaves extract, C nardus leaves and kitosan as golden snail pest exterminators in rice plants. Three types of variance were used, namely formula I (1:1:1), II (1:2:1) and III (2:1:1) from the mixture of T. vogelii leaves extract, C nardus leaves powder and chitosan. From the test results obtained the fastest inial death time were formulation I (24.49 hours), LC50 of 10,60 g/kg which mildly toxic, 100 % daily mortaly in formulation III (day 5) and the fastest efficacy in formulation III were 38.89 % (day 2).
Keywords : Golden snail, combinations biopesticide, Tephrosia vogelii, cymbopogon nardus and chitosan

Abstrak
Pada penelitian ini telah dilakukan pembuatan biopestisida kombinasi dari daun kacang babi, daun serai wangi dan kitosan sebagai pembasmi keong mas pada tanaman padi. Keong mas merupakan salah satu organisme pengganggu tumbuhan pada tanaman padi yang mampu merusak tanaman dalam waktu cepat. Penelitian ini bertujuan untuk mengetahui efikasi biopestisida kombinasi dari campuran ekstrak daun kacang babi, daun serai wangi dan kitosan sebagai pembasmi hama keong mas pada tanaman padi. Digunakan tiga jenis variansi yaitu formula I (1:1:1), II (1:2:1) dan III (2:1:1) dari campuran ekstrak daun kacang babi , serbuk daun serai wangi dan kitosan. Dari hasil pengujian diperoleh waktu awal kematian tercepat yaitu formula I (24,49 jam), LC50 sebesar 10,60 g/kg yang bersifat tosik ringan, mortalitas harian 100 % pada formula III (hari ke-5) dan rfikasi tercepat pada formula III yaitu 38,89 %(hari ke-2).
Kata kunci : Keong mas, biopestisida kombinasi, kacang babi, serai wangi dan kitosan
La obra de un pedagogo social
Authors: Medina Borges Rosa María 
Published: October 2023

Siendo muy joven José Martí sufre prisión. No obstante ser hijo de españoles, ya soñaba a Cuba como patria independiente. El presente artículo aborda su terrible vivencia, que publicara bajo el título: El Presidio Político en Cuba. Constituye una invitación a la opinión pública española de la época a conocer que sucedía en Cuba, a sentir empatía por los seres humanos que sufrían. Era su interés develar todos los aspectos del crimen, para que fuera el pueblo español un agente más de lucha contra semejante injusticia. La obra marca su maduración ideológica y política en ascenso. Analiza la realidad con un lenguaje metafórico extremadamente complejo y diverso en géneros literarios. Realizamos una revisión de bibliografías que abordan los aspectos relacionados con el enfoque histórico y literario del mencionado trabajo martiano. Ninguno integra todos esos elementos con las patologías médicas de los presos que lo acompañaron durante su condena. Se utilizó como metodología el análisis literario de los textos para develar la postura pedagógica martiana, que perseguía el logro del compromiso social y humano del pueblo español hacia el pueblo cubano, poseedor de los mismos derechos de justicia que enarbolaban los republicanos ibéricos
Research on Fuel-Saving and Environmentally Friendly Approach Trajectory Considering Air Traffic Management Intention
Authors: Jie Yuan , Yang Pei , Yuxue Ge 
Published: October 2023

Civilian aviation continues to contribute significantly to the total economic and environmental impact of aeronautics. Reduction of the fuel burn and environmental impact of civilian aviation is critical to the overall sustainability of the industry, and it can be accomplished, in part, through the optimization of arrival and approach procedures. This paper proposes the development of a method for measuring the degree of compliance of optimized approach trajectories with air traffic management (ATM) intentions, using an intention compliance level (ICL) indicator. Based on fuzzy logic, this measure reflects the extent to which approach trajectories satisfy the required time-of-arrival constraints. This research demonstrates an approach trajectory strategy that maximizes the ICL, maintains compliance with ATM intent, and achieves efficiency goals inclusive of reduced fuel consumption through selective airspeed changes. Simulations on the Airbus A320 indicate that achieving the optimal trajectory and flight parameters can significantly guide trajectory-based operations to minimize airline economic costs and reduce environmental impact while complying with ATM commands. In this paper we will organize the data as follows. The Introduction will summarize past research as a means of identifying the gaps that this research seeks to bridge and introduce the premise of our findings. Section II proposes the concept of ICL to evaluate the relationship between flight time and the required time of arrival and establishes an en-route descent trajectory model. Section III constructs the optimization strategy based on simulated annealing genetic algorithm (SAGA), evaluates the effectiveness of the algorithm, and verifies the contributions of the ICL in a basic scenario. Section IV analyzes the impacts of various factors on the optimization results in a complex scenario.
ALMANDINE PENDANTS OF THE SECOND HALF OF THE 18th CENTURY FROM THE TVER EXCAVATIONS AS AN OBJECT OF COMPREHENSIVE SCIENTIFIC STUDY
Authors: Окулов А.В. , Кунгурцева С.А. 
Published: October 2023

В 2014 году экспедицией ООО «ТНИИР-центр» в ходе проведения археологических исследований на территории Загородского посада Твери был обнаружен клад серебряных украшений, в составе которого находились серебряные серьги с бусинами-пронизками из альмандина и аметиста. Клад относится к достаточно позднему с точки зрения археологии времени – втор. пол. XVIII в. Однако некоторые артефакты из состава клада имеют весьма тесную взаимосвязь с многочисленными находками необработанного альмандина, датируемыми XVI– XVII вв. Кристаллы альмандина, их фрагменты и мелкие осколки, а также обломки бусин и заготовки из этого камня в последнее время все чаще стали фиксироваться при раскопках в таких городах, как Москва, Тверь, Великий Новгород и др. Для необработанного альмандина в ходе ранее выполненных исследований было установлено происхождение из Кительского месторождения в Северном Приладожье. Проведенные авторами исследования показали, что альмандин бусин-пронизок клада аналогичного происхождения. Помимо этого, публикуются полученные данные по составу и микротекстурным особенностям серебра, из которого выполнены серьги.
In 2014 the excavations carried out by the TNIIR-center expedition in Zagorodsky posad in Tver discovered a hoard of silver jewelry that included silver pendants with tubular beads made of almandine garnet and amethyst. The hoard is dated to the second half of the 18th century which is a rather late period archaeologically. However, some artifacts from the hoard have a rather close relationship with numerous finds of unworked almandine garnet which date to an earlier period of the 16th–17th centuries. Recently, crystals of almandine garnet, its fragments and tiny chips as well as broken beads and blank parts made of this gemstone have been documented more frequently during excavations in such cities as Moscow, Tver, Veliky Novgorod and others. The earlier studies found that the unworked almandine garnet came from the Kitel deposit in the northern Ladoga region. The studies performed by the authors show that the almandine of the tubular beads has the same source. The data on the composition and the microtexture characteristics of the silver used to make the pendants were obtained as well.
THE PIT FROM THE LATE ARCHAIC PERIOD IN THE «UPPER CITY» OF PHANAGORIA (MATERIALS FOR DATING THE EARLIEST BUILDING ACTIVITY)
Authors: Завойкин А.А. , Чашук М.С. 
Published: October 2023

В 2021–2022 гг. на «Верхнем городе» Фанагории были исследованы остатки двух древнейших домовладений, вписанных в уличную сеть. Стены этих построек были сложены из сырцового кирпича. Одни части кладок стен лежали непосредственно на материковом песке, другие – на тонком предматериковом слое (серая глина/песок). К этому слою относится несколько хозяйственных ям, перекрытых стенами и полами наиболее ранних построек. В статье рассмотрены находки из засыпи одной из них (№ 902) как наиболее показательные в хронологическом отношении. Датировка этих материалов определяет terminus post quem (540–535/530 гг. до н. э.) для регулярной застройки данного района города, что не противоречит ранее сформулированному тезису, согласно которому возведение построек из сырцового кирпича в Фанагории началось практически сразу после основания этой колонии.
In 2021–2022 remains of two houses with city-plots around them that fitted into the street network were excavated in the «Upper City» of Phanagoria. The walls of these houses were constructed of mudbricks. Some sections of the blockwork rested right on the sandy subsoil, while other sections were built on a thin pre-subsoil layer formed of gray clay/sand. Several household pits overlaid by walls and floors of the early dwellings are related to this layer. The paper examines the finds from the infill of one of the pit (No. 902) as the most illustrative chronologically. The dating of these materials determines terminus post quem (540–535/30 BC) for development of this urban district based on a regular city plan. This is consistent with the earlier suggested statement that construction work with the use ofmudbricks in Phanagoria began just after this colony was founded.
Investigating EFL university teachers’ classroom management competency
Authors: Muhammed Karwan , Ahmed Hussein 
Published: October 2023

The current paper aims to investigate university EFL teachers’ classroom management competency. Classroom management is essential for establishing an atmosphere favorable to learning as it comprises the techniques and processes handled by teachers to create an atmosphere that encourages both teaching and learning. The paper focuses on three aspects of classroom management competency, namely establishing rapport with students, managing time, and controlling the class. To bring about the set aims, a 15-item Likert scale questionnaire was administered to a sample of 37 EFL university teachers at the Department of English Language at the University of Zakho, Nawroz University, and University of Duhok during the academic year 2021-2022. The collected data were analyzed using the one-sample t-test on SPSS software. The findings demonstrated that teachers were competent in establishing rapport with students and possessed the competency to manage time effectively and control the class successfully. It is expected that such findings would make EFL teachers insightful to cope and catch up with modern professional teaching competencies.
Feasibility and Reliability of a Novel Game-Based Test of Neurological Function in Youth: The Equilibrium Test Battery
Authors: Shepherd Heather A , van Rassel Cody R , Black Amanda M , Graham Robert F , Yeates Keith Owen , Emery Carolyn A , Schneider Kathryn J 
Published: October 2023

Background An estimated 11% of Canadian adolescents will sustain a sport-related concussion each year. However, diagnostic tools to detect and monitor concussive outcomes are limited. Purpose To evaluate the feasibility and test-retest reliability of the Highmark Interactive Equilibrium (HIEQ) test battery in uninjured adolescents. Study Design Observational study with repeated measurements. Methods Participants completed the HIEQ test battery, a game-based platform on an iPad application, that assesses balance, cognitive function, and visual function, for up to 15 consecutive school days in a group classroom setting. Feasibility for use of the HIEQ was evaluated by (1) recruitment rates; (2) retention rates; (3) test completion without assistance; and (4) adverse events. Test-retest reliability was examined using Bland Altman 95% limits of agreement and intraclass correlation coefficients comparing the first and second and second and third obtained scores. Reliability across multiple baseline assessments was also analyzed using intraclass correlations for the second to sixth and seventh to eleventh obtained scores. Results Fifty-five uninjured high school students (31 females and 24 males, mean age = 16.24 [1.09]) from three high schools participated in the study. Three participants (5%) completed all 15 days of testing, and 73% completed at least 10 of 15 test days. No adverse events were reported. Although the test was feasible, all subtests showed wide limits of agreement from first to second and from second to third testing occasions. Results indicate poor-to-moderate reliability (<0.50 to 0.75) across those intervals, as well as across the second to sixth and seventh to eleventh testing occasions. Conclusion The HIEQ is feasible in high school students; however, performance was characterized by wide limits of agreement and poor-to-moderate reliability across test occasions. Future evaluation of the HIEQ in visual and auditory distraction free individual testing settings is warranted. Level of Evidence Level 3.
Convolutional Neural Network for Predicting Failure Type in Concrete Cylinders During Compression Testing
Authors: Palomino Ojeda Jose Manuel , Cayatopa-Calderón Billy Alexis , Quiñones Huatangari Lenin , Piedra Tineo Jose Luís , Milla Pino Manuel Emilio , Rojas Pintado Wilmer 
Published: October 2023

Cracks in concrete cause structural damage, and it is important to identify and classify them. The objective of the research was to describe the behavior and predict the type of failure in concrete cylinders using convolutional neural networks. The methodology consisted of creating a database of 2650 images of failure types in concrete cylinders tested in compression at the Laboratory of Testing and Strength of Materials of the National University of Jaen, Cajamarca, Peru. To identify cracks on the concrete surface, the database was divided into training (60%), validation (20%), and testing (20%), and a transfer learning approach was developed using the MobileNet, DenseNet121, ResNet50, and VGG16 algorithms from the Keras library, programmed in Python. To validate the performance of each model, the following indicators were used: recall, precision, and F1 score. The results show that the models studied correctly classified the type of failure in concrete with accuracies of 96, 91, 86, and 90%, with the MobileNet algorithm being the best predictor with 96%. The novelty of the study was the development of deep learning algorithms with different architectures that can be used in structural health assessment as an automated and reliable method compared to traditional ones. In addition, these trained algorithms can be used as source code in drones for structural monitoring. Doi: 10.28991/CEJ-2023-09-09-01 Full Text: PDF
Effect of Class F Fly Ash on Strength Properties of Concrete
Authors: Alaj Anjeza , Krelani Visar , Numao Tatsuya 
Published: October 2023

Reducing the amount of CO2 emissions in the environment is one of the priorities of the EPA and other environmental agencies. A way to reduce CO2 emissions is by using fly ash in the concrete industry. Aside from environmental benefits, fly ash has numerous quality advantages; some of the positive effects were recognized earlier; however, in this research, the objective is to replace cement with a different percentage of class F fly ash with a low CaO content to produce sustainable concrete. Laboratory tests were performed to examine the rational percentage of cement replaced by class F fly ash in ordinary concrete C–25/30 and high-performance concrete C–50/60. In total, twelve different mix designs were prepared to examine consistency, setting time, shrinkage, and compressive strength in different periods of curing for more than 600 days. Using recycled material in new buildings still has some obstacles, but the future of construction must be green, so this research indicates that the objective of producing ordinary and high-performance concrete was achieved by replacing 30% of cement with class F fly ash. Doi: 10.28991/CEJ-2023-09-09-011 Full Text: PDF