bluuebunny/crossref_metadata_2025 huggingface dataset:
On the Thermal Integration of Metal Hydrides with Phase Change Materials: Numerical Simulation Developments towards Advanced Designs
Authors: Bartolucci Lorenzo , Krastev Vesselin Krassimirov
Published: September 2022

Hydrogen plays a crucial role towards the decarbonization of the transport sector, whilst most of the challenges for a widespread diffusion of hydrogen-based technologies are related to storage technologies. The use of Metal Hydrides (MH) has been widely recognized as a potential solution thanks to their advantages in terms of high degree of safety, high volumetric storage density, comparatively low operating pressure, the possibility of operation at room temperature and relatively low cost. Since the hydrogenation and dehydrogenation of MH are respectively highly exothermic and endothermic reactions, thermal management of the storage tank is one of the most critical issues to ensure safe and effective operations. The integration of Phase Change Materials (PCMs) in the MH tank design is a potential solution for the self-contained thermal management of MH-based hydrogen storage systems, aiming at substantial charge/discharge performance improvements and ease of integration with the other hydrogen system sub-components. Although several simulation-based studies have been recently proposed about the integration of MH and PCM storage systems, most of them typically include engineering-grade assumptions that oversimplifies the thermo-chemical and thermo-physical phenomena occurring within the MH and PCM domains. Typical examples include: the thermal equilibrium assumption within the heterogeneous (gas + metal alloy) MH bed; neglecting buoyancy-driven convection during the PCM melting phase; neglecting the variation of PCM thermophysical properties with temperature and between phases. The current work aims to propose an improvement in the numerical simulation framework for a better dissection of the physical phenomena occurring while integrating PCM and MH technologies and their effects towards transport-oriented advanced designs. More specifically, User Defined Functions (UDFs) have been implemented within the state-of-the-art ANSYS® Fluent commercial CFD package in order to model thermochemistry and heat transfer within the MH bed and to efficiently couple its operation with a PCM-based thermal buffer. In this initial development stage, the study has been oriented towards the analysis of a full set of parameters related to the thermal buffer configuration, including: buoyancy (i. e. natural convection) characteristics with respect to the optimal temperature difference design, PCM thermophysical properties, geometry of the containment volumes and heat transfer surfaces. Results show that including parameters such as buoyancy is crucial for a comprehensive performance evaluation of the MH/PCM storage system, especially during MH charging/PCM heating.
Preliminary Study on Vehicle-to-Grid Technology for Microgrid Frequency Regulation
Authors: De Santis Michele , Federici Leonardo
Published: September 2022

The integration proposed by the microgrid is especially addressed to those types of resources that can be defined as renewables energy resources. Due to the decarbonization process that is involving many sectors, among which, the mobility sector, electric vehicles (EVs) can be considered a challenging way to less pollute the environment, and at the same time, they can be viewed as mobile energy storage systems. This paper considers an islanded microgrid (MG) structure, where, in addition to the presence of energy conversion from renewable and fossil sources, the connection of EV is envisaged. Their presence makes it possible to take advantage of vehicle-to-grid (V2G) technology for the frequency regulation service. The MG system is simulated in a MATLAB / Simulink environment and, considering a day of variable time, four case studies are carried out, varying the number of EVs connected to the system. The results of the simulations show how EVs provide a valid aid to frequency regulation, given their rapid response, in terms of injection or absorption, to variations in the power fed into the MG from renewable sources. However, the number of EVs connected to the MG must be sized according to the powers involved; an excessive number of vehicles available for regulation does not always benefit the system.
Assessment of Hybrid Commercial Fleet Performance: Effects of Advanced Control Strategies for Different Geographical Sites
Authors: Bartolucci Lorenzo , Cordiner Stefano , Mulone Vincenzo , Tatangelo Camilla
Published: September 2022

The international community is making significant efforts to face climate changes related to substantial greenhouse gas (GHG) emissions. Among all the sectors, transport is responsible for almost a quarter of global GHG emissions, 72% of which is imputable to road vehicles. It’s also expected that, without significant measures, these emissions may grow at a faster rate than other sectors. Furthermore, rising fuel costs and availability concerns have made the electrification of road transportation an attractive option to reduce oil dependency. However, this solution produces an electricity demand increase, causing significant overload conditions that could affect the reliability of the distribution sector. For this reason, road transport electrification urges the implementation of smart charging strategies to optimize the interaction between electric vehicles (EVs) and the electric grid to reduce load uncontrolled fluctuation and peaks, avoiding significant investments into grid infrastructure. This solution can be more helpful if the EVs diffusion grows along with the renewable energy penetration in the grid. In this work, the effects of an optimal charging schedule on a fleet composed of thermal and electric vehicles performance have been analyzed in terms of the charging process's costs and emissions, considering hybrid and full electric configurations. A stochastic approach accounts for uncertainties in fleet operation and scenario parameters (such as fuel and electricity costs). The analysis was carried out for different locations in Europe to evaluate the effect of geographical position on the vehicle's performances considering a set of possible missions obtained from actual data. Results show that key performance parameters, such as the operating costs, and GHG emissions, are strongly affected by the studied locations' weather and traffic conditions and the advanced control logic implementation. Indeed, with the introduction of an optimal charged EVs fleet, savings of up to 49% and 97% can be achieved for GHG emissions respectively in the hybrid and full electric configuration.
An Economic Evaluation of the Electric Car Incentive Program in Italy
Authors: Delle Site Paolo , Tribioli Laura
Published: September 2022

To encourage electric mobility, governments may pay part of the price of the new car. An economic evaluation of this incentive program is proposed. The economic value results from a comparison between the with-incentive scenario and the without-incentive counterfactual scenario. Four contributions are considered: the change in consumers’ welfare, the government expenditure, the change in the discounted costs of energy consumption for the portion that is purchased abroad, and the change in the discounted costs of well-to-wheel greenhouse gas emissions. A logit model is used to represent choices between differentiated cars and the consumption of all other goods in the economy (the numéraire). The car market in Italy in 2019 had incentives for all-electric and plug-in hybrid electric cars. In a worst case where no consumer scraps the old car the economic value is negative. The economic value is positive in the best case where all scrap. Sensitivity in realistic ranges of shadow price of greenhouse gas emissions, yearly mileage and car life years is assessed.
Sexual Health and Sexual Quality of Life Among Individuals With Spinal Cord Injury in Latin America
Authors: Di Giusto Melina Longoni , Ertl Melissa M. , Ramos-Usuga Daniela , Carballea Denise , Degano Mariela , Perrin Paul B. , Arango-Lasprilla Juan Carlos
Published: September 2022

Background

Sexual changes are an area of primary concern for individuals with spinal cord injury (SCI) and their partners, but the topic has gone largely unexplored in the research literature.

Objectives

This study examined how individuals with SCI in Latin America experience their sexuality and what issues they and their partners face in this area.

Methods

A total of 248 individuals with SCI from Latin America completed an online 60-item survey regarding sexuality.

Results

The majority of participants (87.7%) reported that they had noticed changes in sexuality after the injury, mainly physical problems (50.7%), emotional problems (38.7%), and changes in relationships with partners (27.5%). Regarding sexual desire, 47.2% indicated that desire remained the same after SCI. The majority of participants (81.9%) indicated not having received any information about sexuality after SCI during their hospital stay but reported that they would have liked to have received information (98.1%). Of all participants, 66.1% reported never having been asked about problems or difficulties in their sexual life after SCI by any health professional.

Conclusion

Interventions designed to educate individuals with SCI regarding the effect of injury on their sexual functioning, responsiveness, and expression, as well as to support them in maintaining and enhancing their sexual well-being, may be extremely beneficial, particularly in Latin America. Findings highlight the distinct need for professionals to introduce the topic of sexuality by discussing it in a straightforward, nonjudgmental manner and to integrate discussions about sex and related issues into assessment, planning, and ongoing treatment.
Relating Functional and Imperative Session Types
Authors: Saffrich Hannes , Thiemann Peter
Published: September 2022

Imperative session types provide an imperative interface to session-typed
communication. In such an interface, channel references are first-class objects
with operations that change the typestate of the channel. Compared to
functional session type APIs, the program structure is simpler at the surface,
but typestate is required to model the current state of communication
throughout. Following an early work that explored the imperative approach, a
significant body of work on session types has neglected the imperative approach
and opts for a functional approach that uses linear types to manage channel
references soundly. We demonstrate that the functional approach subsumes the
early work on imperative session types by exhibiting a typing and semantics
preserving translation into a system of linear functional session types. We
further show that the untyped backwards translation from the functional to the
imperative calculus is semantics preserving. We restrict the type system of the
functional calculus such that the backwards translation becomes type
preserving. Thus, we precisely capture the difference in expressiveness of the
two calculi and conclude that the lack of expressiveness in the imperative
calculus is largely due to restrictions imposed by its type system.
Reports and Effects of German Experts on Physical Education and Sports in the Early Republican Era in Turkey
Authors: Korkmaz Sevda
Published: September 2022

After the proclamation of the Republic, major reforms took place in almost every field in the transition from the Ottoman Empire to the Republic of Turkey, that is, from a 600-year-old empire to a nation-state. This great transformation in the institutional structure and mentality put education at the focal point of the reforms. In order to change and increase the quality of education and training activities, many experts came to Turkey, conducted investigations and interviews, and prepared reports containing their recommendations. The main reference points for the founders of the republic were ‘health’, ‘youth’, ‘secularism’ and ‘equality between men and women’. ‘Physical education and sports’ were given importance on the way to reach the goal in these matters. The invited experts presented their works on physical education and sports. Within the scope of this study, the reports prepared by the German sports experts on physical education and sports were investigated, and all the reports reached were examined. In the analyzed reports, findings on physical education and sports were determined and solution suggestions were analyzed.
Un rico amuleto del ámbito cortesano: el librito-joya conocido como “Credo de Carlos V” del Museo Nacional de Artes Decorativas
Authors: Jiménez Jorge , Naya Carolina
Published: September 2022

El trabajo aborda el estudio del librito-joya conservado en el Museo Nacional de Artes Decorativas, por primera vez tomando en consideración la pieza en su conjunto. Los versículos evangélicos y las oraciones permiten ahondar en su carácter taumatúrgico y en las relaciones con otros amuletos semejantes, especialmente, con los que contienen la oración de san León. Justamente, con esta plegaria se trazan una serie de concordancias que permiten explicar su aparición y algunas de sus características. Por otra parte, el estudio pormenorizado de la guarnición y de las gemas ha dado pie a una revisión de la cronología y los estilos, descartando definitivamente que perteneciera al monarca. En este sentido, la estrecha relación con la “Corona Zaporta” del Tesoro de la Virgen del Pilar ha permitido vincular su creación a las manos del orfebre Alonso de Rebira.
Literarisches Lernen mit Emil und die Detektive in einfacher Sprache : Eine empirische Studie zur literarästhetischen Rezeption in der Sekundarstufe 1
Authors: Diederichs Lara
Published: September 2022

Literarische Texte in einfacher Sprache werden in Bildungskontexten eingesetzt und gewinnen an Aufmerksamkeit in der deutschdidaktischen Diskussion. Empirische Studien zur Wirkung dieser Textversionen stehen hingegen noch aus. Der Band enthält eine Studie zur Untersuchung von Rezeptionsprozessen des Lesens eines Textausschnittes aus Emil und die Detektive in einfacher Sprache im Vergleich zur Rezeption des Originals. Anhand von Merkmalen der literarästhetischen Rezeption wie Empathie, Perspektivenübernahme, Involviertheit und Interesse kann auf die Wirkung und den Nutzen des Textangebotes geschlossen werden. Die Ergebnisse liefern erste Befunde für das junge, diskursive Forschungsfeld literarischer Texte in einfacher Sprache und geben einen Ausblick für die zukünftige Erforschung literarästhetischer Rezeptionsprozesse. Zugleich kann auf Implikationen für den sprachsensiblen Literaturunterricht verwiesen werden.
IOT-based Automated Object Colour Sorting and Counting machine Using colour Sensor, Node MCU and Servo Motor
Authors: Vijay Mhaske Kumar , Gonsalves Flavia
Published: September 2022

In the current period, each and every process in different sections of diligence similar as manufacturing, processing, packaging sections, etc. are being revolutionized with automated systems, due to certain downsides in the homemade system. The end of the system is to reduce the downsides of the homemade system similar as low delicacy, low thickness, high charges, etc. The proposed system feathers and counts objects grounded on their colors and the collected data is transferred to the pall. In this system Node MCU is being used as control unit and transmits the entire process.TCS3200 color detector is used to sort out the objects and are being directed with the help of servo motor.
La contraofensiva: el final de Montoneros (2021)
Authors: Custer Carlos Ignacio
Published: September 2022

Reseña de Hernán Confino, La Contraofensiva: el final de Montoneros, Buenos Aires, Fondo de Cultura Económica, 2021, 363 pgs.
Fighting unemployment in twentieth-century Chile (2021)
Authors: Álvarez Carlos Alberto
Published: September 2022

Reseña de Ángela Vergara, Fighting unemployment in twentieth-century Chile, Pittsburgh, University of Pittsburgh Press, 2021, 245 pgs.
Presentación
Authors: Camarero Hernán
Published: September 2022

Presentación
Writing a “Good” Autoethnography in Educational Research: A Modest Proposal
Authors: Keleş Ufuk
Published: September 2022

In this paper, I first discuss what autoethnography is elaborating on an autoethnographic spectrum. Then, I draw on several scholars’ understanding of what a “good” autoethnography is and propose a list of suggestions to contribute to autoethnography’s conceptualization and operationalization in qualitative educational research in the future. Believing that a good autoethnography is the work of a scholar who aims for the witty hand of an artist and the sharp/critical mind of a social scientist, I suggest that a good autoethnography (a) creates a sense of transformation through a story of illumination, healing, understanding, and/or learning, (b) engages readers as a companion rather than passive audience through commonalities and particularities, (c) goes beyond personal confessions by mindfully offering autobiographical and background information, (d) uses appropriate tools and sources and explains why using them makes sense, (e) denaturalizes social issues by making invisible power dynamics visible, and (f) embraces the subjectivity of memory and interpretation. I explain each suggestion in more detail in subsections and provide some guiding questions for future autoethnographers to help them make mindful decisions before and during their autoethnographic endeavors.
HUBUNGAN KECEMASAN TENTANG PENULARAN PENYAKIT DENGAN PERAN KELUARGA DALAM PERAWATAN PENYAKIT TB PARU DI WILAYAH KERJA PUSKESMAS PASIR NANGKA KABUPATEN TANGERANG
Authors: Silitonga Linda , Ayu Pratiwi  , Rina Puspitasari
Published: September 2022

Tuberkulosis (TBC) menjadi masalah kesehatan global. Sepertiga populasi dunia tertular TBC dan menjadi penyebab utama kedua kematian dari penyakit menular diseluruh dunia. Penyakit Tuberkulosis dapat terjadi karena adanya perilaku dan sikap keluarga yang kurang baik. Begitupun dalam hal mempercepat proses penyembuhan pasien TB Paru diperlukan perawatan yang sangat intensif terlebih dari pihak keluarga. Tujuan untuk mengetahui hubungan kecemasan tentang penularan penyakit dengan peran keluarga dalam perawatan penyakit TB Paru di wilayah kerja Puskesmas Pasir Nangka Kabupaten Tangerang. Desain penelitian termasuk survey analitik dengan pendekatan cross sectional. Sampel diambil dengan menggunakan rumus Slovin dengan jumlah sampel sebanyak 106 responden. Pengambilan sampel menggunakan tehnik accidental sampling. Penelitian ini menggunakan analisis univariat dan bivariat dengan uji Chi Square. Hasil berdasarkan analisis univariat dari 106 responden mayoritas kecemasan berat sebesar 43,4% dan peran keluarga baik sebesar 60,4%. Hasil analisis bivariat dengan uji chi square didapat ada hubungan antara kecemasan tentang penularan penyakit (p-value 0,000) dengan  peran keluarga dalam perawatan penyakit TB Paru. Kesimpulan adanya hubungan yang signifikan antara kecemasan dengan peran keluarga. Saran agar responden dapat aktif dan meningkatkan pengetahuannya mengenai penyakit TB Paru dan juga cara pencegahannya, supaya dapat membedakan mana yang perlu dicemaskan dan mana yang tidak perlu dicemaskan, dan agar dapat menumbuhkan kesadaran kepada keluarga juga masyarakat supaya bahu membahu untuk melakukan upaya perawatan penyakit TB Paru
Multi-System Histiocytosis of Langerhans Cells in Boys Aged 2 Years (Histopathology Review)
Authors: Hasniah Minna , Mawardi Prasetyadi , Mudigdo Ambar , Nurfaiqoh Elok , Kasmitasari Fitri
Published: September 2022

Langerhans cell histiocytosis (HSL) or histiocytosis X, eosinophilic granuloma, letterer siwe disease, hand schuller christian disease and hashimoto pritzker disease is a disorder caused by the accumulation and proliferation of langerhans cells in various organs of the body that causes tissue damage. The highest prevalence of HSL occurs in children less than 3 years old, with a ratio of 2:1 for boys and girls. The classic appearance of skin manifestations is an eruption resembling seborrheic dermatitis in the folds, axillae, scalp, retroauricular and trunk areas. The appearance of the lesion is yellow to brownish red papules, purpuric and crusted papules that can occur together with erosion. Histopathological examination with staining with S100 or cluster of differentiation 1a (CD1a) revealed Langerhans cell infiltration. The results of immunohistochemistry with IHC S-100 staining, CD1a showed a picture of Langerhans cells and histiocytes. The purpose of this paper is to study the histopathological features of HSL to better than to diagnosis and treatment of HSL. A 2-year-old boy was consulted with the chief complaint of itchy red nodules on the head, chest and back area. Complaints accompanied by diarrhea, often feel thirsty and hungry and lose weight. Dermatological status in the facial region, the anterior and posterior trunks showed lenticular papules with umbilication (pin points) with erosions covered with necrotic tissue above, on the scalp, facial, retroauricular and trunk regions, yellow to brownish papules were crusted with erosions. Histopathology with hematoxylin and eosin (HE) staining showed the presence of small fragments of skin tissue, the epidermis was partially composed intact, the dermis was filled with histiocytes, plasma cells, eosinophils, mast cell impressions and polymorphonuclear leukocytes. Immunohistochemical examination with staining IHC S-100 and CD1a showed positive. Histiocytosis is a group of disorders characterized by the accumulation of cells derived from dendritic cells accompanied by inflammation and causing tissue damage. Histopathological and immunohistochemical examinations serve to establish the diagnosis. The results of immunohistochemical examination with IHC S-100 staining, CD1a will show a picture of Langerhans cells and histiocytes
Intracranial EEG in Episodic Memory Research: Possibilities, Limitations, Results
Authors:   HSE University, Vorobiova Alicia Nunez
Published: September 2022

Stereoelectroencephalography (sEEG) and electrocorticography (ECoG) are methods of intracranial (invasive) EEG (iEEG). These methods record alterations of local field potential (LFP) using stereotaxically or subdurally implanted invasive electrodes. Nowadays, these methods are widely used for diagnostics and therapy of various neurological disorders. Moreover, they offer a valuable opportunity for fundamental research of cognitive and sensorimotor processes. Here, we address the possibilities and limitations of iEEG for human episodic memory research and review the main results obtained by this method, delineating the functional role of medial temporal lobes structures, the temporal dynamics of their activation, and the role of different frequency oscillations in local and global processing during episodic memory
HEMŞİRELİK ÖĞRENCİLERİNİN İZOLASYON ÖNLEMLERİNE UYUM, TUTUM VE DAVRANIŞLARININ BELİRLENMESİ
Authors: ÜNSAR Serap , YILDIZ ÇİLENGİROĞLU İrem , MEŞHUR Gülcan , DUMAN Esra , ÖZLEMİŞ Nilay
Published: September 2022

Amaç: Bu tanımlayıcı kesitsel çalışma öğrenci hemşirelerin izolasyon önlemlerine uyumlarını ve etkileyen faktörleri belirlemek amacıyla planlandı.

Yöntem: Araştırma 328 öğrenci ile yürütüldü. Veriler İzolasyon Önlemlerine Uyum Ölçeği ile toplandı. p˂0.05 değeri istatistiksel olarak anlamlı kabul edildi.

Bulgular: Kız öğrencilerin bulaşma yolu, el hijyeni ve eldiven kullanımı alt boyut ve izolasyon önlemlerine uyum toplam puan ortalaması erkeklere göre daha yüksekti (p
HEALTH AND ENVIRONMENTAL LITERACY LEVELS OF IMMIGRANT AND NON-IMMIGRANT UNIVERSITY STUDENTS AND RELATED FACTORS
Authors: GÖKÇAY Gönül , ÇEVİRME Ayşe
Published: September 2022

Aim: The aim of this study is to determine the health and environmental literacy levels and related factors of immigrant and non-immigrant university students.

Method: The research was carried out in descriptive and relationship-seeking type. The study sample constitute 860 students studying at a state university in the East of Turkey. The data were collected with the Socio-demographic Information Form, Turkey Health Literacy Scale (THLS-32) and Environmental Literacy Scale. Evaluation of the data; It was performed by using SPSS package program with number, percentage, mean, standard deviation, t test, f test and correlation analysis. Statistical significance was accepted as p
HEMŞİRELERDE UYKU KALİTESİ
Authors: KAYNAK Songül , ALTAY Birsen
Published: September 2022

Uyku, yoğun çalışma koşulları, stres gibi faktörler çalışan bireylerin uyku kalitesini önemli ölçüde etkileyerek uyku sorunlarına yol açmaktadır. Kronik bir hastalık tanısı olan ya da nöbet tutarak çalışma hayatını devam ettiren bireylerde uyku bozukluklarının daha sık görüldüğü bilinmektedir. Nöbet tutarak çalışan meslek gruplarından biri olan hemşirelik, çalışma ortamından kaynaklanan pek çok olumsuz faktörün etkisiyle yoğun iş yüküne sahip, stresli bir meslektir. Hemşirelerin çoğu uyku bozuklukları yaşamaktadır. Uykusuzluk, hemşirelerin yaşam kalitesini bozmakta, hem de çalışma verimlerini olumsuz etkilemektedir. Bu nedenle; hemşire ve diğer vardiyalı çalışan sağlık çalışanlarının çalışma düzenlerinde ve saatlerinde iyileştirilme yapılması gerekmektedir. Hemşirelerin uyku sorunları ve etkilerinin araştırılması, tanımlayıcı veya deneysel çalışmalar ile sorunların ele alınması ve ona göre önlemler alınması önemlidir. Bu çalışmada hemşirelerin uyku kalitesini ve etkileyen faktörleri belirlemek amacıyla yapılan çalışmalar tartışılmıştır.
Oil Palm Expansion in Farmers Perspective
Authors:   . Faculty of Social Sciences and Humanities, PGRI Sumatera Barat University, Indonesia, Elvawati Elvawati
Published: September 2022

Studies on oil palm plantation expansion have been widely conducted and still debatable. This condition is caused by the increase in the oil palm land expansion every year. It cannot be separated from the role of investors/private companies, the state, and smallholders. This paper focuses on the farmer perspective on the oil palm plantations expansion with the purpose of describing the expansion of oil palm plantations from the farmer perspective in economy, income diversification and working time. This study used a qualitative and quantitative approach with the types of data used in this study were secondary data and primary data. The farmers feel the benefit in the economic side, increasing income and welfare levels. On the other hand, the presence of oil palm has led to the diversification of livelihoods in farmer, it makes easy in to borrow formal and non-formal institutions.
Pengaruh Kepemimpinan Kepala Madrasah dan Profesionalitas Guru terhadap Hasil Belajar Peserta Didik untuk Mata Pelajaran Fiqih di MI Mathla’ul Huda Babakan 02
Authors: Sastrajaya Sastrajaya
Published: September 2022

The improvement of student learning outcomes at MI Mathla'ul Huda Babakan 02 is supported and influenced by various factors, both external and internal students. These factors include the leadership factor of the head of the madrasa and the factor of teacher professionalism at MI Mathla'ul Huda Babakan 02. The purpose of this study is to determine 1) the influence of madrasah head leadership on student learning outcomes, 2) the influence of teacher professionalism on student learning outcomes, and 3) the influence of madrasah head leadership and teacher professionalism together on student learning outcomes at MI Mathla'ul Huda Babakan 02. The results showed that the teacher's professionalism variables were more dominant in influencing the learning outcomes of students than the leadership variables of madrasah heads. This is evident from the results of the determination test showing that the correlation and determination variables of rhitung teacher professionalism were 39.6% and R2 was 0.396, while for the leadership variables of the head of the rhitung madrasah was 32.6% and R2 was 0.326.

 Keywords: madrasa head leadership, teacher professionalism, learner learning outcomes
Analisis Kesulitan Siswa Dalam Memahami Materi IPA dan Upaya Mengatasinya Pada Kelas V di MI Islamiyah Bogor
Authors: Syarif Ahmad , Janah Miftahul , Nuhdi Asep
Published: September 2022

This study aims to analyze students’ difficulties in understanding science material and efforts to overcome them in clas V at MI Islamiyah  State School in the 2021/2022 academic year. The method used in this research is case study with research data sources are observations conducted directly to student. In qualitative research, the researcher acts as an instrument and usescollection techniques and participant observation and interviews. The results showed that science learning at MI Islamiyah was less effective. There are severeal factors that cause students to have difficulty understanding science material at school, including: lazy students, lack of motivation from teachers, not focusing on learning, lack of attention from both parents, lack of enthusiasm in learning, family problems, physical disorders, and interest in reading. Drop from the results of this study the total number of students in class V amounted to 34 while there wewe 6 students who had difficulty in learning science material at MI Isalmiyah. The teacher’s efforts to overcome students who have learning difficulties in class are: the teacher always encourages students to continue to actively learsduring class lessons, the teacher must always remember that students have different character traits from each other, the teacher gives clear directions to students, the teacher must give words of motivation to students and the teacher always gives praise to every student, especially students who are having difficulty understanding science material at school so that learning activities run well.

Keywords : Learning difficulties science, how to overcome
Self-Efficacy and Career Choice Among Undegraduate Students of Ruaha Catholic University in Iringa, Tanzania
Authors: Njiku Demetrius Benedict , Ndung’u Dr Elijah Macharia , Shanyisa Dr Wilkister
Published: September 2022

The study aimed to assess the relationship between self-efficacy and career choice among undergraduate students of Ruaha Catholic University in Iringa region, Tanzania. The study adopted mixed method approach, specifically convergent parallel research design for data collection. The study consisted of 223 respondents from third year and second year students. Instrument developed by Schwarzer and Jerusalem (1995) for self-efficacy was used to collect data. Third year students were given questionnaires while second year data were collected through focus group discussion. The validity of qualitative data (open-ended questions and focus group discussion interviews) was obtained through triangulation, rich or thick description and clarifying researcher biases (reflexivity or bracketing). Quantitative data was analysed using descriptive analysis- correlation analysis by SPSS version 23. Qualitative data was analysed using content analysis by data managing, transcribing data into segments, coding and categorizing into themes and interpreting data, the results were presented into direct quotations and narratives. Findings revealed that students were confident in their personal skills and believed that they were capable in their career choice. The findings also showed that self-efficacy influenced career choice among undergraduate students.
Factors-based Asset Pricing Models: a literature review
Authors: Martino A. Martino , Puopolo Giovanni W.
Published: September 2022

In this paper we provide a literature review of the main factors-based asset pricing models, focusing in particular on factors related to firm characteristics. After presenting the Capital Asset Pricing Model, we describe first the most important empirical evidence that led to the well-known Fama-French three-factors model. Next, we highlight the most widely used multi-factors pricing models based on momentum, liquidity, investment and profitability, also outside the U.S. Finally, we discuss the ability of firm characteristics to predict the behavior of future stock returns.
ÂŞIKLARIN DİLİNDEN KONUŞMA ADABI
Authors: Aksoy Erol
Published: September 2022

Temelinde saygı ve nezaket olan adabımuaşeret kaideleri; oturmaktan, kalkmaktan tutun da misafir ağırlama, taziyeye gitme, asansöre binme, telefonla konuşma gibi hayatın günlük akışı içerisindeki pek çok durumda insanlardan beklenilen davranış kalıplarını içermektedir. Bu kaidelerden biri de konuşmaya dair olanıdır. Konuşma adabı en önemli görgü kurallarından biridir. Zira insanlar arasındaki iletişim daha çok konuşma vasıtası ile sağlanmaktadır. Bu nedenle neyi, nerede, nasıl ve ne kadar konuşacağını bilmek sağlıklı bir iletişim açısından oldukça gereklidir. Bundan dolayı toplumumuz, genç nesillerine informel yollardan diğer adabımuaşeret kaidelerini öğrettiği gibi konuşma adabını da öğretmeye çalışmaktadır. İşte âşıkların da bu informel süreçte konuşma adabını öğretme açısından sorumluluk yüklendikleri görülmektedir. Nitel araştırma yöntemlerinden doküman analizinin kullanıldığı bu çalışmada elde edilen veriler betimsel analize tabi tutularak tasnif edilmiştir. Öğreticilik niteliği güçlü olan âşık tarzı şiir geleneği bu açıdan okunduğunda âşıkların konuşma adabını az, yerinde ve düşünerek konuşmak, edepli konuşmak, boş konuşmamak, sözü uzatmamak, dedikodu yapmamak, kendini övmemek gibi başlıklarda tasnif edilecek şekilde ele aldıkları ve bu eğitim sürecine katkıda bulundukları görülmektedir.
Escenarios posibles para intervenciones desde la fenomenología existencial
Authors: Signorelli Susana
Published: September 2022

La psicología existencial se ha centrado casi exclusivamente en el análisis de la relación terapéutica entre sus protagonistas: terapeuta y paciente. Son pocas las investigaciones sobre temas que atañen a la vida del ser humano. Sin embargo, en toda terapia se presentan múltiples alternativas en la vida de los pacientes y en la propia del terapeuta que son plausibles de un estudio fenomenológico existencial. Me referiré en este trabajo a un escenario posible de este tipo de análisis, en este caso, a todo lo que le acontece al paciente oncológico, a su familia, al equipo tratante y a la sociedad en su conjunto, en cómo afrontan al cáncer. Abordar temas relacionados con la muerte siempre será difícil pero un terapeuta existencial es indudable que no puede soslayarlo. Es tarea de todo terapeuta estar abierto a las distintas alternativas que se presentan en la vida de sus consultantes, teniendo siempre presente la visión de mundo de cada uno de ellos en particular, en las circunstancias que sean
Da patologização do humano à heterogênese urbana
Authors: Marques Abramov Dimitri , De Castro Peixoto Paulo-de-Tarso
Published: September 2022

O século XX trouxe uma ciência impossível: a ciência da mente. Esta ciência ignora os problemas semiológico, nosológico e sociocultural a ela inerentes e que a inviabilizam. Como resultado, observamos a criação de uma pandemia global de transtornos mentais, majoritariamente administrados através de psicofármacos. Em contraponto, o pensamento filosófico desafia esta logica desde Canguilhem, passando por Michel Foucault, Deleuze & Guattari, dentre tantos outros. E da Éticaespinosana dos afetos e afecções, nasceu a Heterogênese Urbana (HU), que tem como objeto original a revitalização criativa das potências humanas através do contato entre subjetividades diversas. Etimologicamente, “criação a partir e com a diversidade”. Com a circulação dos afetos, dos desejos, das ideias nos espaços públicos, a HU promove, fenomenologicamente, a expressão daquilo que, antes permanecia invisível e indizível face o silêncio da vida da cidade. Os campos de afetações intersubjetivo e intercorpóreo entre vidas tão distintas desloca e descola o olhar fundado na psicopatologia clássica para atravessar a vida da cidade pelas potências que cada indivíduo é capaz nas experiências coletivas.A HU denuncia a multicomplexidade do conceito “produção de saúde”, que apenas inicia-se nas práticas biomédicas, compreendendo todos os saberes para a construção do cidadão autônomo e afetivo.
Toda a dádiva boa e toda a dádiva perfeita é do alto, de Søren A. Kierkegaard
Authors: Marques de Sousa Elisabete
Published: September 2022

Al god og al fuldkommen Gave er ovenfra
Do design e de uma ética coerente à vida, um ensaio com Hans Jonas
Authors: Everling Marli T.
Published: September 2022

Frente aos enormes e complexos desafios em que a tecnologia crescentemente se apodera de processos produtivos e decisórios sem a interferência humana - apesar de refletir sínteses e padrões resultantes de toda a sorte de elementos associados a nossa visão de mundo -, o design se constitui um dos campos do conhecimento que participa da configuração das relações entre o ser, o meio e a cultura material. Nesse sentido, o estudo objetiva compreender o pensamento de Jonas (2006) e investigar indícios contribuintes à elaboração de critérios éticos autorregulatórios para o campo do design, traduzindo significados associados que possam orientar a profissão, situando a vida na Terra no centro do processo. A metodologia é de cunho bibliográfico com leitura de aproximação de Princípio Responsabilidade, seguida de perspectiva mais analítica dos capítulos I (A Natureza Modificada do Agir Humano) e II (Questões de Princípio e Método) e de outros tópicos quando oportunos. Os resultados apresentam pistas para articular o Princípio responsabilidade em termos de design, bem como contradições formuladas sob a forma de perguntas cuja intenção é fomentar novas reflexões.
Presentación
Authors: Mac Gregor Osorno Lorena
Published: September 2022

El patrimonio cultural, tangible e intangible, es la memoria evocativa que entrelaza el pasado, presente y futuro. Identidad, tiempo y vestigios se conjugan en el contexto de la hipermodernidad, donde el patrimonio está contenido entre las tensiones socioeconómicas que lo confrontan, lo transforman y lo revitalizan. Los “bienes culturales” son una selección subjetiva y simbólica de sucesos históricos del pasado, que son adaptados, reconstruidos o reinventados desde y para nuestro presente. Es a partir de esta historia-memoria nacional edificada, como se puede delinear —a manera de boceto— la explosión de las identidades multiétnicas y multiculturales. El patrimonio inmaterial manifiesto en México potencia una constante creativa en el mestizaje de ritos y festividades, en el sincretismo religioso, en la fusión gastronómica, en las lenguas originarias y en la variedad de ritmos musicales, donde se hacen visibles prácticas performativas que representan una serie de códigos aprendidos y compartidos. Nierika, Revista de Estudios de Arte, dedica este número al tema, Re-visiones críticas: cultura, riesgo y patrimonio, donde se aborda la riqueza patrimonial desde tópicos diferentes como la Diplomacia y la cultura mexicana.
Cuerpos desdoblados. La relación entre cámara y cuerpo en "Black Swan" y "Mother!"
Authors: Mújica Astorga Raúl
Published: September 2022

Este artículo reflexiona sobre la interacción entre la cámara y el cuerpo como elementos cinematográficos de la obra de Darren Aronofsky. A partir del análisis de dos filmes donde el cuerpo femenino tiene un papel protagónico se planteó que en esta interacción se genera un fenómeno particular que se conceptualiza como “desdoblamiento de cuerpos”, en el que el cuerpo cinemático establece relaciones hacia otros elementos del filme mediante la cinematografía. En el texto se abordan los diferentes tipos de desdoblamiento y la relación que adquieren no sólo con la narrativa del filme, sino con la figura de Aronofsky como director de cine de autor.
Luisa Josefina Hernández, la enseñanza de los géneros dramáticos y la invención de la pieza
Authors: González Mello Flavio
Published: September 2022

Este artículo brinda un testimonio de primera mano acerca de la metodología de enseñanza que Luisa Josefina Hernández utilizaba en las clases de teoría dramática que durante varias décadas impartió en la Facultad de Filosofía y Letras de la Universidad Nacional Autónoma de México, las cuales marcaron profundamente la manera de analizar los géneros dramáticos en México. Además, se centra en la manera en que esta dramaturga, narradora y pedagoga contribuyó a la definición de la “pieza” acuñada por Rodolfo Usigli, una aportación innovadora, desde México, en el estudio de los géneros dramáticos.
Temperature Effects on Two-Cell Field Impedance Testing of Epoxy and Polysulfide-Modified Epoxy Coatings
Authors: Cleveland Mack , Merten Bobbi Jo
Published: September 2022

Two-cell field impedance spectroscopy provides coating condition assessment in situ, i.e., on coated structures. This study evaluated the dependence of impedance data on environmental conditions encountered during testing, especially temperature. Field impedance spectroscopy measurements were applied to two coated steel substrates over the course of a diurnal heating-cooling cycle. One coated substrate provided a high-barrier epoxy and the second a low-barrier polysulfide-modified epoxy (polysulfide). The temperature range examined was approximately 80 degrees Fahrenheit (ºF) to 110ºF for air, surface, and solution temperature, with baseline measurements made at 70ºF. The results showed coating impedance decreases as the coating surface temperature increases. The coatings showed time-dependent recovery of their initial properties during the cooling cycle, with the greater hysteresis observed by the high-barrier epoxy. Linear regression of temperature and impedance provided a strong correlation, with R2 exceeding 0.80. Therefore, field impedance data with varied temperatures can be corrected via a linear regression formula derived by measuring one sample at two or more temperatures within the encountered range. Coating surface temperature is preferred based on a stronger correlation with impedance than atmospheric or test cell solution temperatures. An Arrhenius relationship is also acceptable for temperature correction and may be preferred where the highest accuracy is needed. This correlation had an R2 of 0.96 or higher, demonstrating a logarithmic dependence of impedance on the inverse of the absolute temperature, i.e., the temperature in Kelvin. The effect of humidity on the impedance was low and could not be resolved from the strongly correlated effect of temperature. The repeated impedance testing, about 40 repetitions at a single location, applied in this experiment showed no discernable effect on the coating impedance, suggesting the voltage amplitudes utilized of 100 mV for low-barrier polysulfide and 500 mV for high-barrier epoxy were nondestructive.
Entre tỹnh e mborahéi: cantos e movimentos kaingang e kaiowa
Authors: Klein Tatiane Maíra , Gibram Paola Andrade
Published: September 2022

Este trabalho explora uma comparação etnográfica entre formas expressivas dos povos indígenas Kaingang (PR) e Kaiowa (MS), baseada em duas pesquisas: uma focada no movimento Nẽn Ga, um coletivo intergeracional cujas ações são centradas nas práticas de cantos/danças/rituais [tỹnh] kaingang; e outra no papel das gravações nos processos de transmissão dos cantos-rezas-danças kaiowa – cujas artes por excelência, como outros povos guarani (PISSOLATO, 2008), são as artes vocais. Destacando as categorias nativas que emergem das festas e mobilizações de povos jê e tupi-guarani no Brasil Meridional, nos perguntamos: como formas distintas de praticar, conceber e classificar o que é cantado e dançado pode produzir sentidos inovadores para noções como música, política, cultura e xamanismo? Atentas aos contextos em que tais cantos-danças se manifestam, abordamos seus aspectos poéticos e sonoros e os movimentos que marcam suas formas de transmissão e de circulação.
Transformações do torcer: esportividades do olhar e olhares sobre a esportificação
Authors: Costa Carlos , De Toledo Luiz Henrique
Published: September 2022

Torcer é prática que se compromete ao universo das modalidades esportivas. Partindo das relações entre duas instâncias sensíveis – jogar e olhar –, torcer desdobra-se em jogos categoriais metafóricos e metonímicos, colocando em evidência disputas e apropriações pelos significados da prática. Olhares etnográficos incidem sobre um processo descrito na sociologia do esporte como esportificação, reposicionado aqui pela expressão “esportividade do olhar”. Mobilizaremos o torcer nos jogos categoriais presentes no futebol para alcançá-lo numa luta corporal ameríndia, espetacularizada nos rituais interétnicos do egitsü, Alto Xingu, BR, denominada kindene. Etnografias da esportividade, ou olhares sobre a esportificação, interpelam a ambição universalizante da aludida noção sociológica, que minimiza o caráter dialético da relação entre olhar e jogar.
Percepções urbanas: performances cênicas e experiência estética no espaço público
Authors: Spinelli Céline
Published: September 2022

Este artigo aborda intervenções cênicas no espaço público e como elas impactam nas cidades e nos seus habitantes. Embora ele derive de uma pesquisa etnográfica realizada no âmbito de festivais de circo, trata-se antes de uma reflexão de matriz interdisciplinar do que um aporte empírico pautado no trabalho de campo. O propósito consiste em demonstrar como espetáculos se inscrevem no espaço público, transformando tanto as cidades como as percepções dos habitantes sobre elas. Para isso, observaremos a cidade enquanto ecossistema e algumas estratégias utilizadas por artistas para adaptarem suas performances ao espaço público. Por fim, o enfoque repousará sobre festivais, dispositivos de difusão que ocupam cidades durante um tempo determinado, permitindo a realização simultânea de um conjunto de performances. Veremos que a experiência estética pode acionar o imaginário poético dos espectadores, sendo capaz de transformar as percepções e também os laços de pertencimento dos habitantes para com a cidade.
Newer congeners of doxycycline – do they hold promise for periodontal therapy?
Authors: Natarajan Prabhu Manickam , Rekha Vidhya , Murali Anita , Swamikannu Bhuminathan
Published: September 2022

Introduction

Periodontitis is a very common polymicrobial infection of the oral cavity with wide systemic implications. It is influenced by multiple aspects, such as virulence of bacteria, the host response and resistance of bacteria to antibiotics, both within and outside the biofilm. Commonly, antibiotics are employed to break this vicious activity of microbes. There is a lacuna in the literature regarding the comparative efficacy of newer congeners of doxycycline. The aim of the study was to objectively compare the binding capacity of newer congeners of doxycycline with clinically significant targets relevant to periodontitis.

Material and methods

A total of 5 drugs, viz. doxycycline, tigecycline, eravacycline, sarecycline and omadacycline, were selected, and molecular docking studies were performed with four targets: gingipain, FimA, interleukin-1β and estrogen receptor β. The studies were performed using AutoDock version 4. The results were reported based on the binding free energy, electrostatic interaction and intermolecular attraction. These values were compared and reported.

Results

The drugs selected showed good binding to all four targets but had many differences in binding efficacy. Omadacycline, tigecycline, sarecycline, and doxycycline revealed 100% binding efficacy by occupying the core amino acid residues (444 HIS, 477 CYS and 388 ASP) over the target protein.

Conclusions

Doxycycline can be replaced with omadacycline for clinical use. This result warrants future clinical investigations on omadacycline for periodontal therapy in both local and systemic administration.