bluuebunny/crossref_metadata_2025_split huggingface dataset:
Univariate and Multivariate LSTM Models for One Step and Multistep PV Power Forecasting
Authors: Limouni Tariq , Yaagoubi Reda , Bouziane Khalid , Guissi Khalid , Baali El Houssain 
Published: June 2022

The energy demand is increasing due to population growth and economic development. To satisfy this energy demand, the use of renewable energy is essential to face global warming and the depletion of fossil fuels. Photovoltaic energy is one of the renewable energy sources, widely used by several countries over the world. The integration of PV energy into the grid brings significant benefits to the economy and environment, however, high penetration of this energy also brings some challenges to the stability of the electrical grid, due to the intermittency of solar energy. To overcome this issue, the use of a forecasting system is one of the solutions to guarantee an effective integration of PV plants in the electrical grid. In this paper, a PV power ultra short term forecasting has been done by using univariate and multivariate LSTM models. Different combinations of input variables of the models and different timesteps forecasting were tested and compared. The main aim of this work is to study the influence of the different combinations of variables on the accuracy of the LSTM models for one-step forecasting and multistep forecasting and comparing the univariate and multivariate LSTM models with MLP and CNN models . The results show that for one step forecasting, the use of a univariate model based on historical data of PV output power is sufficient to get accurate forecasting with 28.98W in MAE compared to multivariate models that can reach 35.39W. Meanwhile, for multistep forecasting, it is mandatory to use a multivariate model that has historical data of meteorological variables and PV output power in the input of LSTM model. Moreover, The LSTM model shows great accuracy compared to MLP and CNN especially in multistep PV power forecasting.
ANALISIS UNJUK KERJA SUDUT PITCH BILAH TURBIN ANGIN TERHADAP DAYA NOMINAL GENERATOR SINKRON 3 FASA
Authors: Nugroho Dedi 
Published: June 2022

Pengoperasian turbin angin terbagi atas beberapa zona operasi dengan tujuan untuk memaksimalkan kinerja turbin angin dan melindungi bilah turbin dari kerusakan saat diterpa oleh angin berkecepatan tinggi. Pembagian zona didasarkan pada besarnya kecepatan angin. Jika kecepatan angin berada diantara kecepatan nominal dan kecepatan cut out, maka turbin angin dapat dioperasikan pada nilai daya nominalnya dengan cara mengatur sudut pitch bilah turbin angin sedemikian rupa sehingga turbin angin dapat menghasilkan daya nominal. Riset ini bertujuan menganalisis hubungan antara perubahan kecepatan angin dan sudut pitch bilah turbin angin untuk mendapatkan daya nominal generator sinkron 3 fasa. Metode riset dilakukan melalui pemodelan turbin angin dengan generator sinkron 3 fasa. Turbin angin dirancang memiliki kapasitas daya mekanik 34,7 kW untuk kecepatan nominal angin 8 m/s yang dapat menghasilkan daya listrik nominal 32,68 kW, 408 volt pada kecepatan generator 1500 rpm. Hasil riset memperlihatkan perubahan kecepatan angin antara 8 m/s sampai dengan 15 m/s dapat mempertahankan kecepatan dan daya nominal generator tersebut dengan mengatur sudut pitch bilah turbin antara 00 sampai dengan 26,9270.
PEMBANGKIT LISTRIK TENAGA SURYA OFF GRID UNTUK SUPPLY CHARGE STATION
Authors: Setyawan Andre , Ulinuha Agus 
Published: June 2022

Kebutuhan akan energi listrik saat ini semakin meningkat seiring dengan meningkatnya kemajuan teknologi, namun peningkatan ini tidak sebanding dengan pasokan energi listrik itu sendiri. Maka dari itu saat ini pembangkit yang sangat berpotensi di Indonesia adalah pembangkit Listrik tenaga surya, karena Indonesia sendiri letaknya berada di daerah tropis yang mana sebenarnya menerima sinar matahari yang cukup berkesinambungan dan dalam implementasinya tidak menghasilkan polusi udara yang bisa merusak alam serta cadangan energinya yang tidak terbatas. Pembangkit listrik tenaga surya ini bisa menjadi solusi untuk digunakan sebagai charging sepeda listrik (Solar Charge Station). Sepeda listrik yang digunakan merupakan sistem sebelumnya dikembangkan dalam riset ini. Solar Charge Station digunakan sebagai tempat charging sepeda listrik. Sumber energi yang digunakan untuk mensuplay charge station memanfatkan energi dari panel surya. Sistem pembangkit listrik tenaga surya ini tidak terhubung ke jaringan listrik (off grid). Panel surya menangkap cahaya sinar matahari diwaktu siang hari dan disimpan pada baterai setelah melalui regulator. Energi yang disimpan digunakan untuk charging baterai sepeda listrik dan peralatan sistem penyewaan sepeda.
Choć można o „niebie”, to słuszniej bodaj o „chlebie” – między wartościami a potrzebami z perspektywy pedagogiki społecznej
Authors: Budajczak Marek 
Published: June 2022

Artykuł prezentuje krytyczny ogląd użyteczności tradycyjnych definicji i typologii pojęcia wartości dla potrzeb praktyki pedagogiki społecznej i proponuje wykorzystanie w tym celu kategorii potrzeby, jednak nie w dominujących ujęciach psychologii, a według zobiektywizowanej systemowej koncepcji potrzeb człowieka autorstwa Tomasz Kocowskiego.
Comparison of four different immunoassays and a rapid isotope-dilution liquid chromatography-tandem mass spectrometry assay for serum folate
Authors: Jin Lizi , Lu Youli , Yi Xilian , Zhang Meiwei , Zhang Jiangtao , Zhou Weiyan , Zeng Jie , Zhang Tianjiao , Zhang Chuanbao 
Published: June 2022

Abstract

Objectives
Accurate measurement of serum folate is essential for the diagnosis and management of various disorders. This study aims to investigate the between-method differences of four immunoassays and a rapid isotope-dilution liquid chromatography-tandem mass spectrometry (ID-LC-MS/MS) method.

Methods
Roche Cobas (USA), Abbott Alinity i2000 (USA), Beckman Coulter Access (USA), Mindray CL-6000i (China), and the ID-LC-MS/MS method were compared using 46 human serum samples. The results were analysed by Passing–Bablok regressions and Bland–Altman plots. A bias of 13.31% based on biological variation was used as the bias criterion.

Results
All the within-run and total coefficients of variation (CVs) met the specification. The folate concentrations determined by all the assays were significantly different (p=0.0028). All assays had correlation coefficients over 0.97 with each other. The 95% confidence intervals (CIs) for the slope seldom contained 1 and few 95% CIs for the intercept contained 0 in the regression equations. Compared to ID-LC-MS/MS, the biases of all assays ranged from −20.91 to 13.56 nmol/L, and the mean relative biases ranged from −9.85 to 40.33%. The predicted mean relative biases at the medical decision levels rarely met the criterion.

Conclusions
Assays for serum folate had good correlations with each other but lacked good agreement. The accuracy and consistency of assays for serum folate should be measured and assessed routinely. Standardization work to improve the accuracy of serum folate assays, such as the extension of traceability to reference methods or materials, calibration standardization efforts, and assay-adjusted cut-offs should be promoted.
Assessing verbal interaction: towards European harmonization. Insights from the co-operation between Spanish and French language exams for Higher Education (CertAcles/CLES)
Authors: Zabala Delgado Julia , Rouveyrol Laurent 
Published: June 2022

Abstract
Verbal interaction has been the subject of a growing interest among language professionals in Europe since the CEFR was published in 2001; in linguistics, verbal interaction has long been studied. In the Bakhtinian approach, it is even considered “the fundamental reality of language”. All types of interaction share the fact that they are dynamically co-constructed by participants. How then can we assess or certify interactional competence on an individual basis when dynamic instability prevails? What criteria can be defined in order to deconstruct interactional competence into specific operational criteria, if interaction is intrinsically multidimensional? These are the questions that we address in this paper. To do so, this paper presents the insights gained as a result of the co-operation between two certification systems: CertAcles (Spain) and CLES (France), both belonging to NULTE (Network of University Language Testers in Europe). These certification systems have agreed to collaborate extensively, sharing their constructs and assessment routines. As a result, CertAcles is shifting towards more contextualized tasks and CLES is considering adopting descriptive assessment scales for interaction (C1 level). We hope to demonstrate that the materialization of scientific collaboration of this kind can help improve individual systems.
Critical incidents as a window into simple language management
Authors: Sieglová Dagmar 
Published: June 2022

Abstract
Language learning is a life-long process. In a world that connects people across nations through study, work, travel and socializing, new chances and challenges arise, intensifying a need to improve modern foreign language skills. The aim of language education, therefore, should not be limited to providing mere language instruction but it should also involve the development of learner autonomy so that students are equipped with strategies, methods, and approaches for managing their language development over the course of their whole lives. Higher Education Institution (HEI) teaching practices need to react to this reality through their teaching approaches and methodologies. The following study conducted with ŠKODA AUTO University presents an analysis of the current students’ simple language management (LM) process, which reveals their language learning attitudes, behaviors and ‘acts toward’ language. Data were collected between 2017 and 2020 from students’ written narratives describing and analyzing critical incidents (CI) that reflect the learning strategies the students adopt, the study styles they use, motivation for learning, as well as the actions they plan and conduct. As a result, these findings form the basis of a deeper understanding of the language teaching process, which in turn enhances language education methodology.
Self-access learning of English intonation with speech software: examining learners’ perceptions with a focus on their concerns and negative comments
Authors: Tsang Art 
Published: June 2022

Abstract
Language laboratories exist in many language centres across the globe. Situated in the popularity of self-access and computer-assisted language learning in the present era, the study investigated tertiary-level English as a foreign language (EFL) learners’ general and, particularly, negative views of speech analysis software. Two hundred and eighty intermediate-level (CEFR B1 and B2 levels) EFL participants completed trial sessions with some free speech software in which they listened to and recorded utterances to practise English intonation at a language laboratory in Hong Kong. Each participant was observed during the session, completed a questionnaire, and attended a brief post-questionnaire interview after the session. Both quantitative and qualitative data were collected. The results showed that learning with this kind of software was perceived generally positively in relation to language enhancement and self-access learning. However, from the qualitative data collected about their negative views and concerns, three themes emerged: absence of a teacher, an interaction-less environment, and the little value of graphic outputs. This article concludes with a discussion of these findings and implications for language educators and researchers in self-access and computer-assisted language learning, which are in vogue globally nowadays. Suggestions for addressing learners’ negative views and comments, which have not received much attention among stakeholders, are also provided.
Native peers as mediators and experts in language learning in Higher Education
Authors: Kotkavuori Suvi , Hahl Kaisa , Hilden Raili 
Published: June 2022

Abstract
This qualitative study explores how native peers as teaching assistants can support language learning in Higher Education. The data of five semi-structured group interviews of 15 teaching assistants in total were analysed thematically. The results indicate that the assistants embraced multiple roles during the programme and within the lessons. However, in the role of a peer student who collaborated on an equal level with the learners, they could best facilitate learning and communication. As native speakers, they complemented the teacher’s expertise by their regional and up-to-date cultural and linguistic knowledge. This article supports a wide view of mediation adopted by the CEFR Companion Volume and focuses on its two mediation activities. The so-called didactic triangle was used to illustrate how native peers mediated between the teacher, the student and the subject to facilitate the language learning process. The assistants acted as mediators in different ways, interculturally and pedagogically. Nevertheless, a few assistants experienced challenges when assisting at lower CEFR levels. Thus, it is essential to discuss roles and expectations as well as the process together with the teachers, the students and the assistants.
Relationship of Blood Gas Measurements and Hematological Manifestations of COVID-19 Patients with Mortality: Retrospective Analysis
Authors: KILIÇKAYA Refika , ORAK Yavuz , ORAK Filiz , DOĞANER Adem 
Published: June 2022

Objective: The aim was to investigate the relationship between blood gas and complete blood count parameters and mortality in patients with COVID-19 during and after in the intensive care unit (ICU).
Material and Methods: Patients were divided as group nonsurvivor and group survivor. Hematological parameters were registered on the day 1, 3, 5.
Results: A total of 142 patients were analyzed retrospectively in the study. Out of them, 46 were women (32%). Seventy-one patients were in group nonsurvivor (50%). The median age of group nonsurvivor patients was 61 years, and the median age of group survivor patients was 60 years. Noninvasive ventilation day and mechanical ventilation day were higher in group nonsurvivor. In group nonsurviver, at the admission to the ICU, in the third day and in the fifth day of ICU, PO2/FiO2 (p
NEGATIVE VERB FORMS AS VERBAL EXPRESSION OF SOCIAL EXCLUSION
Authors: Grigorieva Lidiya M. 
Published: June 2022

Aim. The purpose of this work is to characterize the peculiarities of the written language of the social exclusion victims.Methodology. The article analyzes the texts of autobiographies which describe the experience of social exclusion. The research methods include statistical analysis, psycholinguistic and psychosemantic methods of text analysis.Results. Verb negatives, which make up the semantic field of the language of social exclusion, present the individual self-reflection and become part of a metalanguage with specific features of constructing narratives.Research implications. The results of the study contribute to the theory of narratives and communication as well as expand the understanding of analysis tools.
Association between Hypodontia of the Permanent Lateral Incisors and other Dental Anomalies in School Children Aged 12-16 Years in Kosovo
Authors: Reshitaj Albena , Reshitaj Krenar , Musliu Erik , Hoxha Kanita 
Published: June 2022

Background: Hypodontia of lateral incisors (LI) is frequently associated with other dental anomalies. The objective of this study was to determine the association of LI with other dental anomalies by comparing the two groups: Group 1 with hypodontia of the maxillary LI (MLI1) and Group 2 with hypodontia of the mandibular LI (MLI2), in secondary school education students in Kosovo. Methods and Results: A total of 3306 secondary school students aged 12-16 years, regardless of gender, were included in this prospective study. The abnormalities investigated were recorded by RTG-panoramic and dental charts. The teeth were recorded as a congenital absence when the mineralization of the crown, identified by panoramic tomography, was absent. The prevalence of LI hypodontia was as follows: MLI1 (Group 1) included 36 cases (92.3%) and MLI2 (Group 2) included only 3 cases (7.6%), which indicates a much higher percentage of cases with hypodontia of MLI1. In Group 1, 21(58.3%) cases of LI hypodontia were bilateral and 15(41.7%) unilateral; in Group 2, 2(66.7%) cases were unilateral and 1(33.3%) case – bilateral.	Among dental anomalies, the occurrence of rotation was found in 19(48.7%) cases with LI hypodontia: 47.2% cases in Group 1 and 66.7% cases in Group 2. The prevalence of dental inclination anomaly was 30.77% of all cases with hypodontia of LI: 27.8% of cases in Group 1 and 66.7% of cases in Group 2. The prevalence of ectopy was in 17.9% of cases of all hypodontia cases of LI: 16.7% of cases in Group 1 and 33.3% of cases in Group 2. Crown anomalies were evident in 7(17.9%) patients of all hypodontia cases of LI, all of which were in Group 1. Other anomalies such as microdontia were evident in two patients in Group 1. Transposition, bodily movement, and superposition were present in one patient in Group 1; in Group 2, one patient had transposition. At the same time, the frequency of dental transposition was significantly higher in Group 2 than in Group 1 (P=0.02088). Other dental anomalies of crown and root and infraposition were not present in both groups. There were no significant differences in the other dental anomalies between the two groups. Conclusion: The consequences of hypodontia in dental arches are obvious. Knowing the prevalence of hypodontia and its association with other dental anomalies helps classify the need for further treatment for the patients, whether orthodontic, prosthetic, or surgical.
Quotient Nearness d-Algebras
Authors: Yılmaz Damla , YAZARLI Hasret 
Published: June 2022

Abstract
BCK/BCI-algebra is a class of logical algebras that was defined by K. Iseki and S. Tanaka. BCK-algebras have a lot of generalizations. One of them is d-algebras. Near set theory which is a generalization of rough set theory. This theory is based on the determination of universal sets according to the available information of the objects. Based on the image analysis, the near set theory was created. Oztu¨rk applied the¨ notion of near sets defined by J. F. Peters to the theory of d-algebras. In this paper we introduce upper-nearness d-ideal, upper-near (upper nearness) d # -ideal, upper-near (upper-nearness) d∗-ideal. We explored what conditions we should put on the ideal for quotient nearness d-algebra to become an nearness d-algebra again. Finally, we introduce quotient nearness d-algebras with the help of upper-nearness d∗-ideals of nearness d-algebras.MSC Classification: 03E75 , 03E99 , 03F55 , 06F35 , 06S40
Assessment of the Sustainability of Landcovers Due to Artisanal Mining in Jos Area, Nigeria
Authors: Ogunro Olumuyiwa Temidayo , Owolabi Ayodele 
Published: June 2022

Abstract
Environmental sustainability ensures that minerals are responsibly exploited to meet the present needs without depriving the future generations the ability to meet their needs. Unfortunately, environmental sustainability and artisanal mining seems unattainable in recent years with aggressive mining operation. It is on this premise that geospatial techniques with proven role in environmental studies were employed to assess the environmental sustainability due to artisanal mining in Jos Area, Plateau State, Nigeria. Land surface temperature (LST) and seven (7) geospatial indices used for land use land cover (LULC) estimation were generated. The mean LST values showed a steady increasing pattern from 23.98 ºC to 25.88 ºC and 29.46 ºC in 1984, 2002 and 2020 respectively. The mean value of the Normalized Difference Vegetation Index (NDVI) depicts a considerable increase from 0.179 in 1984 to 0.458 in 2002 and a slight decline to 0.438 in 2020. This is congruent with the mean Optimised Soil-Adjusted Vegetation Index (OSAVI) values in 1984, 2002 and 2020 which were 0.149, 0.359 and 0.355 respectively. The resulting maps from Modified Normalized Difference Water Index (MNDWI) revealed a consistent decline in the mean values (-0.349, -0.391 and − 0.411) in 1984, 2002 and 2020. The results revealed that Jos Area is not densely vegetated, while waterbodies were declining. Built-ups and bare lands also followed the same trend of a surge from 1984 to 2002 and a decline from 2002 to 2020. This study provided essential input and referential information for proper decision making on environmental sustenance, environmental management, and mineral resource conservation.
Seismic risk assessment of a large metropolitan area by means of simulated earthquakes
Authors: Fischer Eliana , Barreca Giovanni , Greco Annalisa , Martinico Francesco , Pluchino Alessandro , Rapisarda Andrea 
Published: June 2022

Abstract
The determination of seismic risk in urban settlements has received increasing attention in the scientific community during the last decades since it allows to identify the most vulnerable portions of urban areas and therefore to plan opportune strategies for seismic risk reduction. In order to accurately evaluate the seismic risk of urban settlements it should be necessary to estimate in detail the seismic vulnerability of all the existing buildings in the considered area. This task could be very cumbersome due to both the great number of information needed to accurately characterize each building and the huge related computational effort. Several simplified methods for the assessment of the seismic vulnerability of existing buildings have been therefore presented in the literature. In order to estimate the occurrence of damage in buildings due to possible seismic excitations, the published studies usually refer to response spectra evaluated according to seismic events expected in the territory with assumed probabilities. In the present paper seismic events are instead simulated using a modified Olami-Feder-Christensen (OFC) model, within the framework of Self-Organized Criticality. The proposed methodology takes into account some geological parameters in the evaluation of the seismic intensities perceived by each single building, extending the approach presented in a previous study of some of the authors. Here, a large territory in the Sicilian oriental coast, the metropolitan area of Catania (Sicily), which includes several urbanized zones with different features, has been considered as a new case study. Applications of the procedure are presented first with reference to seismic sequences of variable intensity, whose occurrence is rather frequent in seismic territories, showing that the damage can be progressively accumulated in the buildings and may lead to their collapse even when the intensities of each single event are moderate. Moreover, statistically significant simulations of single major seismic events, equivalent to a given sequence in terms of produced damages on buildings, are also performed. The latter match well with a novel a-priori risk index, introduced with the aim of characterizing the seismic risk of each single municipality in the considered metropolitan area. The proposed procedure can be applied to any large urbanized territory and, allowing to identify the most vulnerable areas, can represent an useful tool to prioritize the allocation of funds. This could be a novelty for risk policies in many countries in which public subsidies are currently assigned on a case-by-case basis, taking into account only hazard and vulnerability. The use of a risk index in the allocation process will allow to include the relevant role of exposure.