bluuebunny/crossref_metadata_2025 huggingface dataset:
FITeens Toolkit. Terveyteen liittyvien käyttäytymismallien edistäminen opetuksessa
Authors: García-González Luis , Abós Angel , Sanz-Remacha María , Burgueño-Mengíbar Rafael , Diloy-Peña Sergio , Mayo-Rota Carlos , García-Cazorla Javier , Sevil-Serrano Javier , Pérez-Ovejero Daniel , Álvarez Testillano Isabel , de Pablo González Nuria , Sanz Prieto Mariano , de Pablo González Gema , Rodríguez Fernández Saturio , Adelaar Dylan , de Bakker Tessa , Cid Luis , Rodrigues Filipe , Carvalho Gonçalo , Rodrigues José , Szymánski Tomasz , Leinonen Janne , Karhapää Henna
Published: October 2023

Lapset ja nuoret hankkivat erilaisia tapoja kasvaessaan. Jotkut näistä tavoista ovat läheisesti liitoksissa terveyteen, joten terveiden elämäntapojen hankkiminen voi auttaa heitä terveellisen ja rauhallisen elämän elämisessä tulevaisuudessa. Huonot elämäntavat voivat olla vahingollisia lapsille ja nuorille. Tämän takia on tärkeää, että koulutuksesta vastaavat tahot auttavat nuoria hankkimaan terveitä elämäntapoja. FITeens (Promoting physical activity and healthy habits in sedentary teenagers) -hankkeen päämääränä on pilotoida viihdyttävä ja mukaansatempaava koulutuksellinen interventio, joka on kohdistettu teini-ikäisiin tavoitteena edistää fyysistä aktiivisuutta ja terveitä elämäntapoja. Tämä hankkeen ensimmäinen tulos koostuu kattavasta sarjasta ideoita, resursseja, käytäntöjä ja muutamia esimerkkejä liikuntaopettajille, jotka kattavat erilaisia kroonisten sairauksien riskiä lisääviä keskeisiä käyttäytymismalleja (fyysinen aktiivisuus, riittävä uni, kohtuullinen näyttöaika, alkoholi ja tupakankulutus ja terveellinen ruoka), jotka voidaan sisällyttää heidän opetuskäytäntöihinsä. Tämä työkalupakki koostuu kolmesta eri moduulista: 1. Lukiot tehokkaina paikkoina terveiden elämäntyylien edistämisessä. Tämä moduuli käsittelee koulun merkitystä nuorten terveellisten tapojen hankkimisessa. 2. Motivaatio avainasemassa terveiden elämäntyylien edistämisessä. Tämä moduuli keskittyy motivaation merkitykseen terveellisten elämäntapojen hankkimisessa. 3. Terveyteen liittyvät käyttäytymismallit nuorissa. Tässä moduulissa keskitytään edellä mainittuihin keskeisiin terveyteen liittyviin käyttäytymismalleihin (fyysinen aktiivisuus, riittävä uni, kohtuullinen ruutuaika, alkoholin ja tupakan käyttö sekä terveellinen ravinnon saanti) ja kuvataan niistä jokainen syvällisesti. Kaikki nämä moduulit on omistettu edellä mainituille erilaisille terveyteen liittyville käyttäytymismalleille. Jokaisella niistä on teoreettinen selitys, selittävät videot, infografiikat ja oppimistilanteet, jotka tukevat liikuntaopettajia hankkimaan laajan tiedon siitä, miten oppilaitaan motivoidaan harrastamaan liikuntaa ja omaksumaan terveellisiä tapoja, jolloin he tiedostavat niiden tärkeyden.
A Conceptual Persuasive Development Framework to Change Students’ Behaviour in Massive Open Online Courses: A Review
Authors: Mhd Salim Mohamad Hidir , Mohamad Ali Nazlena , Jalaludin Nur Atiqah , Mohd Johari Nur Farahin , Abd Rahman Muhammad Aqil
Published: October 2023

Some experts attribute the relatively low completion rates of Massive Open Online Courses (MOOCs) partly to user dissatisfaction with the system. Live instructors are absent from MOOCs due to their delivery through virtual learning platforms. A distinctive feature distinguishing MOOCs from other e-learning systems is the significantly higher ratio between users and instructors. Consequently, the main challenges include limited interaction between students and study materials and the heightened need for instructor guidance. Consequently, enhancing the design of the existing MOOCs system is imperative to create a more engaging learning experience. Previous studies have attempted to incorporate persuasive design elements into e-learning systems. However, these studies must integrate persuasive design with motivational factors and effective learning strategies to encourage student behavior change and increase student engagement. The present study utilizes prior literature to establish a conceptual framework for persuasive e-learning development, known as PEDAL, which integrates motivational factors, learning strategies, and persuasive design principles. The initial section of the paper introduces issues related to student motivation, learning strategies, the MOOCs platform, and the potential impact of persuasive technology on enhancing the effectiveness of MOOCs. The subsequent section elucidates the methodology employed for the literature search. The third section explains the mechanisms of the PEDAL framework and discusses relevant previous literature that contributed to its development. Finally, the last section outlines the framework's limitations and potential future improvement. The paper also outlines how the proposed conceptual framework can be applied to design an effective e-learning system.
Unveiling the Excellent Leadership Qualities and Practices of Principals in Islamic Schools: A Systematic Literature Review
Authors: Said Saidah Mohd , Sharif Sabariah , Jerry Abdullah Mohd Khairuddin
Published: October 2023

This systematic literature review (SLR) aimed to investigate leadership practices among Islamic school principals to determine their characteristics and influential factors. Guided by the Preferred Reporting Items for Systematic reviews and Meta-Analysis (PRISMA) approach, the study scrutinized 16 articles published between 2017 and 2022 sourced from three databases: Scopus, Dimensions, and Google Scholar. The findings unveil several themes, including instructional practices, leadership styles, good exemplars, relationship and engagement, ethical values, communication, flexibility, adaptability, and justice. These themes underscore the intricate nature of Islamic school leadership and its intersection with cultural and contextual factors. Intrinsic aspects, such as spirituality, attitude, and ability, and extrinsic components, such as organizational context and socio-religious influences, significantly mold principals’ practices. These insights echo previous research accentuating the role of attitudes, norms, and perceived behavioral control in shaping leadership behavior. The study emphasizes cultivating affirmative attitudes and cultural norms to foster inclusive and diverse environments. The implications underscore the need for multifaceted leadership strategies, adaptability, and ethical values. Future studies are recommended to incorporate quantitative methods and broaden the geographical scope for a comprehensive grasp of Islamic school leadership. Thus, this SLR advances insights into Islamic school leadership, facilitating effective practices across diverse educational settings.
Impact of Geographical Factors on Vietnamese Teachers’ Satisfaction with “Teacher Activity Groups” Project
Authors: Yen Phuong Hoang , Thi Nguyen Anh , Thao Le Thanh , Thuy Pham Trut , Tra Nguyen Huong , Thu Huynh Thi Anh
Published: October 2023

This study examines how geographic location affects the satisfaction of English language teachers participating in the innovative Teacher Activity Groups project. The project represents a pioneering example of technology-enhanced, cross-cultural collaboration between a Welsh institution, where English is the native language, and Vietnam, where English is taught as a foreign language. The six-month project was conducted entirely online, using digital platforms such as Zoom and Google Meet for interaction, fostering cooperative learning and problem-solving among 147 K-12 teachers. Employing a theoretical framework that draws upon the adult learning theory, the community of practice theory, and the zone of proximal development theory, this study offers a comprehensive evaluation of the Teacher Activity Groups project, focusing on five key levels of analysis: participants’ reactions, participants’ learning, organisation support and change, participants’ use of new knowledge and skills, and student learning outcomes. The questionnaire’s quantitative findings reveal notable differences in teacher satisfaction across urban, suburban and rural areas. Notably, suburban teachers expressed greater satisfaction in almost all measured categories. This disparity across different geographical areas highlights the importance of considering context-specific factors in the design and implementation of professional development initiatives like the Teacher Activity Groups project. Through its analysis, this study underscores the potential of cross-cultural, online collaborative projects in fostering professional development and suggests areas of focus for enhancing English language teaching and learning in different socio-educational contexts.
Digitalization of The Construction Industry with BIM and 3D Machine Control Integration for Construction Performance Improvement.
Authors: Hermawan Iwan , Sudirman Sutardi
Published: October 2023

The Government of the Republic of Indonesia through Presidential Regulation Number 100 of 2014 and Presidential Regulation Number 117 of 2015 aims the construction of the 2770 km Trans Sumatra Toll Road from Bakauheni to Banda Aceh to be fully constructed by 2024. There are two key stages in the project phase, i.e planning and construction stages. The planning stage is carried out using the Building Information Model (BIM), while the construction phase integrates BIM with 3D-Machine-Control. This study is conducted in Trans Sumatera Pekanbaru - Bangkinang’s Toll Road with 40 kilometers long as a study case. The data acquisition methodology is conducted using qualitative and quantitative methods throughout the field’s experiments. This study conducted the examination of the LiDAR UAV digital survey’s accuracy, the BIM implementation on Level of Development (LOD) 200, 300, and 400, verification of the usage of Motor Grader with 3D-Machine-Control efficiency in elevation cutting works, and the application of Vibro Compactor with 3D-Machine-Control for improving the accuracy of soil compaction on the subgrade and base course. The results showed that the topographic data from UAV LiDAR are accurate within LE90 accuracy with 0.176 cm. The optimalization of 3D-Machine-Control could carry out the earthworks as similar as design also can be used as quality and quantity control. The time efficiency which obtained from implementing Motor Grader with 3D-Machine-Control for elevation cutting application is 47%.
Evaluation of the Implementation of Contract Change Order as A Solution to the Problem of Contract Scope Changes
Authors: Nusantara Bintang Putra , Sutardi Sutardi
Published: October 2023

Construction industry activities are increasing. Construction industry players need to be prepared to face the possibility of changes of design planed that are not in accordance with field conditions. The purpose of this research is to identify, analyze the causes and impacts of Contract Change Orders (CCO) at the pre-construction, construction implementation, and post-construction stages with case study is Proyek Simpang Susun Balaraja Timur at Tol Jakarta – Merak, Kabupaten Tangerang. The research method used is descriptive and qualitative methods by conducting Earned Value Analysis and Fishbone Analysis to identify the causal factors and impacts of CCO so that efforts can be made to mitigate the performance of the construction contract from the aspect of quality, cost, and time. The results of the analysis show 3 factors causing CCO namely consultant factors, such as lack of planning preparation and non-compliance with field conditions, project owner factors, and contractor factors. The results of Earned Value Analysis with Estimate at Completion (EAC) calculations can be used to identify the need for additional contract value and additional execution time. On initial contract identification: Cost Performance Index (CPI) is 0.77 (insufficient costs with cost overrun – Rp.  52.502,111,631.83) and Schedule Performance Index (SPI) 1.21, means that Addendum 1 needs to be done with the results: CPI is 1.17 (the costs used are sufficient from the available fees), EAC is Rp. 189,848,751,106.02 with changes in the contract value is Rp. 222,017,999,900.65, SPI is 1.21 from the initial contract value Rp. 174,437,684,167.96
Analisis Perubahan Garis Pantai Menggunakan Metode Empiris di Pantai Palik, Bengkulu Utara
Authors: Putra Ihza Gian Fires , Santosa Budi
Published: October 2023

Pantai Palik yang terletak di Desa Lubuk Jaya, Bengkulu Utara merupakan pantai yang tepat bersebelahan dan menghadap langsung ke Samudera Hindia, hal ini menyebabkan pantai ini memiliki gelombang yang cukup besar. Gelombang pantai yang besar memicu adanya transport sedimen yang dapat menyebabkan terjadinya abrasi, akresi, dan perubahan garis pantai yang dapat mengganggu aktivitas nelayan dalam berlayar menangkap ikan dan aktivitas pelelangan ikan di daerah tersebut. Penelitian ini dilakukan untuk menentukan besarnya abrasi, akresi dan perubahan garis pantai di Pantai Palik menggunakan metode-metode empiris dengan analisis numerik. Metode-metode empiris yang dipakai yaitu Metode Manohar, Metode Komar, dan Metode CERC (SMB Method) dengan menggunakan nomogram. Hasil analisis menggunakan Metode Manohar, abrasi terbesar terjadi di pias 4 yaitu 2,47 m, akresi terbesar terjadi di pias 1 yaitu 8,91 m, perubahan garis pantai terbesar terjadi di pias 1 yaitu 8,91 m. Hasil analisis menggunakan Metode Komar, abrasi terbesar terjadi di pias 4 yaitu 1,84 m, akresi terbesar terjadi di pias 1 yaitu 7,85 m, perubahan garis pantai terbesar terjadi di pias 1 yaitu 7,85 m. Hasil analisis menggunakan Metode CERC, abrasi terbesar terjadi di pias 4 yaitu 1,51 m, akresi terbesar terjadi di pias 1 yaitu 6,44 m, perubahan garis pantai terbesar terjadi di pias 1 sebesar 6,44 m.
Effect of Micro Lime on The Ambient Cured Sugarcane Bagasse Ash-Based Geopolymer Concrete
Authors: Kamau Keithy , Omondi Benard , Oyaro Janet
Published: October 2023

Geopolymer concrete has been the ideal replacement for Ordinary Portland cement concrete in producing green concrete. The binder in geopolymer concrete is a cementitious paste made from amorphous Aluminosilicate and activated by an Alkaline solution. The geopolymerization process is initiated at elevated temperatures. Thus, the curing requires elevated temperatures. This curing method limits the application of geopolymer concrete in the construction industry. In a geopolymer mix, the presence of Calcium ions allows the formation of Calcium Aluminate Silicate and Calcium Silicate Hydrate gels, allowing ambient temperature curing.  Therefore, this study investigates the effect of micro lime on the Sugarcane Bagasse Ash-based geopolymer concrete. The micro lime was added to the geopolymer concrete in 1, 3, 5 and 7% by the Sugarcane Bagasse Ash weight. A mix design was based on a Densified Mix Design Algorithm. The tests carried out included compressive strength and water absorption. Ambient curing of the SCBA-based geopolymer concrete was achieved with 1% of the micro lime. The compressive strength increased with the increase of the micro lime, 10N/mm2 at 1%, to 18.25N/mm2 at 7% micro lime. The ambient temperature-cured geopolymer concrete at 3% micro lime had the lowest water absorption rate.
SOCIALIST WAY OF LIFE IN THE O.A. WUTKE’S MANUSCRIPT
Authors:   Russian State University for the Humanities, Dzhalilova Elena V.
Published: October 2023

The architecture of the Soviet avant-garde was one of the main tools of the social engineering. By the end of 1929, several points of view had formed on the problem of organizing a new socialist way of life in a young revolutionary state. This question had been widely discussed by the government representatives, by the society and, first of all, by the specialists, destined to realize in practice the concepts of a new way of life. Among them, the architects played one of the leading roles. The article expands the research understanding of how Soviet specialists of the 1920s understood the idea of a new everyday life and what did they think about the possibility of its implementation. The article also introduces for the first time the manuscript of O.A. Wutke, one of the representatives of the Soviet architectural avant-garde.
TEMPORALITY AS A FUNCTION OF CONTEMPORARY ARTWORK IN NON-DYNAMIC FORM
Authors: Chernova Ekaterina V.
Published: October 2023

The temporality issue within contemporary theory and practice is held under one persistent convention: time is a matter of dynamic species of art, such as theatre, cinema, and music. However, contemporary theoretical discourses in the expanded field of art-theory reveal a fundamentally different view on temporality’s function in a piece of art. In virtue of art's conceptual dematerialisation and the theoretical context of nonlinearity of time, the temporality, as a kind of correlation with time durality, may be concerned as feature for any piece of art – not excluding those which are expressed in static forms. We assume that temporality is not only conditional in case of art pieces expressed in static forms, but also functional as the matter and an potential instrument which can be used to create an expanded concept. In current article we take this hypothesis as a starting point to explore the way for temporality to be considerated as a constructive component of an artistic utterance expressed in a static form of art. It's necessary to notice that the current article contains only an outline of subsequent research, which still demands to be elaborated.
THE IMAGE OF SARAH BERNHARDT IN THE FRENCH ILLUSTRATED PRESS OF 1870-1920
Authors:   Russian State University for the Humanities, Kem Tatiana E.
Published: October 2023

This study is devoted to the reflection of the image of Sarah Bernhardt, the greatest French actress of the second half of the 19th - early 20th centuries. Her pictorial, photographic and sculptural portraits are widely known and very well studied. However, the iconography of her image on the pages of the satirical illustrated press in France remains little known. The purpose of the article is to identify and analyze the stable images of Sarah Bernhardt, developed by cartoonists of the Third Republic, viewed through the prism of the anti-Semitic discourse that took place in France at that time, and the use by artists of the principles of zoomorphism in cartoons. Careful selection of the most significant masterpieces of magazine illustration made it possible to identify the main approaches to the image of the great actress, as well as to demonstrate the features of the public and artistic reception of Sarah Bernhardt. This allowed to underline such stable methods in constructing the caricatural image of the actress, as: ridiculing the Jewish origin of Sarah Bernhardt, focusing the viewer's attention on her excessive thinness, zoomorphizing her image, mockering the private, public, theatrical and creative life of the actress.
Neurological and psychiatric symptoms caused by congenital venous anomaly: clinical case and literature review
Authors: Gataveckaitė M. , Burbienė R. , Mameniškienė R.
Published: October 2023

One of the most common vascular brain malformations is developmental venous anomaly (DVA). This anomaly is usually considered to be asymptomatic but there are some reports in the literature about DVA causing neurological symptoms due to neurovascular compression, obstructive hydrocephalus, venous infarction, or intracerebral hemorrhage.There are no publications on DVA causing psychiatric symptoms. This paper presents a clinical case of DVA in which the patient develops a mood disorder along with neurological symptoms that are typical for a parietal brain lesion. Along with this clinical case, a review of literature is presented which includes classification of vascular brain malformations, prevalence of DVA, clinical manifestations, and characteristics in imaging studies. The article also reviews the functions of the parietal lobe, discusses mood disorders possibly related to parietal lesions, and briefly introduces cyclothymic disorder.
Pediatric optic neuritis: literature review
Authors: Bubnytė S. , Andrulionytė J.
Published: October 2023

Pediatric optic neuritis is an optic nerve inflammation occuring in 1 to 5 children out of 100,000 per year. In children, optic neuritis is rarely associated with multiple sclerosis, more often it can be associated with specific infections, such as diseases of the adjacent sinuses or orbital structures and infectious or infiltrative diseases of the brain or meninges, or it may develop as a separate pathological condition. This pathology is characterized by a sudden loss of vision, pain, especially associated with eye movements, and impaired color perception. It is diagnosed by performing visual function examination, morphological and radiological examinations. Optic neuritis is treated with corticosteroids, while pulse therapy can even speed up recovery in children from 7 to 2 weeks.The aim of this article is to review the symptoms, etiology, pathogenesis, diagnosis, treatment options, and prognosis of pediatric optic neuritis described in the literature.
Optic nerve glioma
Authors: Masilionytė U. , Zarambaitė E. , Glebauskienė B. , Radžiūnas A.
Published: October 2023

Optic nerve glioma (ONG) is usually a low-grade tumor of the optic nerve. ONG can affect not only the optic nerve, but also the optic nerve chiasma and optic nerve tract. ONG can be classified as associated with neurofibromatosis type 1 (NF1) or sporadic ONG. Sporadic gliomas are more commonly diagnosed in adults, have an aggressive course, and are known to have a poor outcome. The disease can be asymptomatic. ONG often causes visual disturbances such as reduced visual acuity, visual field defects, and impaired color vision; due to the tumor mass effect, proptosis, strabismus, and diplopia are possible. As the disease progresses, various neurological symptoms can appear, including headache, hemiplegia, and endocrine disorders such as early maturation, growth hormone hypersecretion, or deficiency. A presumed diagnosis is based on clinical presentation and neuroimaging findings. Meanwhile, biopsy should be avoided due to the high probability of optic nerve damage. Treatment is individual for each patient, but remains controversial to this day. Thus, in this article, we review the prevalence, clinic, diagnostic and treatment options of ONG.
COVID-19 encephalopathy with severe neurological symptoms: a clinical case presentation with literature review
Authors: Baranauskienė G. , Tutlienė N. , Kaubrys G.
Published: October 2023

COVID-19 infection is affecting more and more people around the world, and as the number of recovered patients increases, so does the knowledge on the potential clinical signs of the disease. Although SARS-CoV-2 virus is commonly associated with damage to the respiratory system, it has been observed that about half of patients with COVID-19 infection may also develop various neurological symptoms such as anosmia, dysgeusia, headache, myalgia, or dizziness. Encephalopathy is singled out as one of the most severe complications of the central nervous system caused by SARS-CoV-2 virus and associated with longer duration of the disease, increased disability, and mortality. Acute encephalopathy is a disorder of the brain that clinically occurs with a sudden change in the level of consciousness in otherwise healthy patients before the onset of symptoms. Risk factors include older age, male gender, quicker hospitalization after the onset of symptoms, and chronic illnesses. In exceptional cases, encephalopathy may be an early or even a major symptom of COVID-19 in young patients. The pathogenesis of COVID-19 encephalopathy is not fully understood. However, the most likely etiology of encephalopathy is multifactorial: systemic disease response, inflammation, coagulopathy, direct viral neuroinvasion, endoartheritis, and possibly post-infectious autoimmune mechanisms. For patients with suspected changes in the level of consciousness due to coronavirus infection, it is recommended to perform a thorough examination of the cerebrospinal fluid (CSF), head imaging with a preference for magnetic resonance imaging (MRI), and electroencephalography (EEG) It is worth noting that blood or imaging tests often do not show specific changes in patients with encephalopathy. As revealed by some studies of CSF examinations, cytosis is usually absent or very low while the protein concentration remains normal. It is important to note that SARS-CoV-2 is detected in the cerebral fluid only in isolated cases. Although the EEG of patients with COVID-19 are often normal, they sometimes show specific encephalopathic changes including excessive generalized frontal delta waves, triphasic waves and lower amplitude alpha and beta waves. The MRI describes a spectrum of neurovisual abnormalities, the most common of which are foci of leukoencephalopathy, changes in diffusion restriction imaging in the white, rarely in the gray matter, signs of microhaemorrhage and leptomeningitis. Treatment for COVID-19 encephalopathy includes supportive care and symptomatic treatment. Some studies have shown that immune modulation therapy, including high-dose corticosteroids and intravenous immunoglobulins, is effective in some severely ill patients.
Machine Learning in Acute Stroke Neuroimaging. A Systematic Literature Review
Authors: Matuliauskas D. , Stražnickaitė I. , Samuilis A. , Jatužis D.
Published: October 2023

Background. Artificial intelligence (AI) in medical imaging is a growing and promising technology that can be applied in stroke diagnosis. The study aims to overview studies that compare diagnostic performance of AI applications in stroke detection and seg- mentation of stroke lesions with and without human clinicians, appraising the models, study design, and metrics used.
Materials and methods. This systematic review was performed using the PubMed search engine including articles published in the time frame of 2015 January 1 to 2021 July 23. A to- tal of 438 studies were found, out of which 60 were chosen for the review.
Results. Only 2 out of 60 (3.3%) studies were prospective. Minimum unique computer tomography (CT) scans included for validation – 10, maximum – 21586, mean – 599, me- dian – 100, standard deviation – ±2801.1. The training set sizes consisted of minimum 28 CT scans, maximum – 24214, mean – 1279, median – 153, standard deviation – ±5006.7. Most popular software used in the studies were Brainomix (n=12, 20% of studies) and RAPID (n=12, 20%), 6 studies (10%) used convolutional neural networks, and 6 studies did not iden- tify the model or name of software used. The average value of the ROC AUC results reported was 0.884 and the average accuracy was 0.857. The average reported sensitivity and specific- ity were 0.746 and 0.862, respectively. 27 out of 60 studies used human operators, with the average number of human operators per study being 3.7±2.9.
Conclusions. AI solutions can be widely applied in computation of infarct volumes. Us- ing AI in stroke diagnosis still requires further research with more prospective studies, more expert human operators, and more focus on evaluating secondary outcomes.
Rebelde y fiera, Homenaje poético a Leona Vicario
Authors:   Universidad Autónoma del Estado de Hidalgo
Published: October 2023

Leona Vicario fue un personaje central en la consolidación del México independiente que hoy conocemos. La historia oficial no elude reconocerla como una de las heroínas que lograra la emancipación de la corona española. Sin embargo, la relevancia de sus intervenciones para apoyar con su lucidez, su fortuna y su valentía la lucha de los insurgentes, a pesar de su condición de mujer del siglo xix, ha sido soslayada. Lo cual, considero que denota una ausencia significativa en la historia de México y en el imaginario colectivo.
La sociedad del conocimiento como fundamentación de proyectos y políticas territoriales en el Ecuador
Authors: Cueva-Ortiz Sonia , Ordóñez-León Andrea , Gualancañay Jomaira , Quitiaquez Bryan , Tello-Toapanta Zaira
Published: October 2023

Alineado con los principios de la Cumbre Mundial sobre la Sociedad de la Información (CMSI), el Estado ecuatoriano impulsa desde 2002 el avance hacia la sociedad del conocimiento, registrado en documentos de planificación territorial 2008. El objetivo de esta investigación identifica las políticas de construcción de una sociedad del conocimiento y los proyectos urbano-rurales vinculados con éstas. Utiliza una metodología cualitativa-inductiva a través de dos casos de estudio, Urcuquí y Loja. Se encontraron dos resultados distintos sobre el territorio. El primero, un proyecto paralizado en los alcances deseados a pesar de la gran inversión nacional, y el segundo, un avance hacia la sociedad del conocimiento promovido por la sociedad y la academia, con indirecto apoyo público. A su vez, el plan nacional dirigido a la sociedad del conocimiento se difumina en una muy básica agenda digital latinoamericana. El énfasis en la extensión de la plataforma digital, descuidando la construcción de espacios para fortalecer la sociedad del conocimiento, podría convertir a Ecuador y los países latinoamericanos en un mero mercado de consumo de las naciones desarrolladas, que avanzan a pasos agigantados en la producción del conocimiento y desarrollan una nueva distribución del trabajo mundial.
Comparison of Tearing strength and Dimensional Stability of Alginate Impression Material Mixed with Water and Chlorhexidine
Authors: Ameen Ahmed Saleh Hamad , Kakai Ribaz Tahsin Hayas , Tawfiq Hozan Farid
Published: October 2023

Background:

An irreversible hydrocolloid impression material combined with two different doses of chlorhexidine solution is tested for dimensional change and tearing strength. The aim of this study is to evaluate the impact of adding chlorhexidine with 2 different available concentrations on alginate impression material.

Materials and Methods:

According to the manufacturer's instructions, the irreversible hydrocolloid specimens is made and divided into 3groups (Group 1 is mixed with tap water as a control group, Group 2 is mixed with 0.12 chlorhexidine, and Group 3 is mixed with 0.2 chlorhexidine). Testing is done on the change in dimensions and the tearing strength.

Results:

Lesser dimensional change is observed at group two and is non-significant, and the group three is significantly more dimensionally stable when compared with group one, tearing strength of group one and two is nearly the same while the group three is more resistant to tear and the difference is significant

Conclusion:

The dimensional stability and tearing resistance of chlorhexidine self-disinfecting irreversible hydrocolloid impression material may vary greatly.
Financial Leverage and its Impact on Share Value in Commercial banks "Citigroup Bank as a Model for the Period 2000-2022"
Authors: Abd Eid Muayad M.
Published: October 2023

Background: The financial leverage, which is called financing by indebtedness or financing by borrowing, which is done by borrowing or issuing indebtedness instruments such as bonds and other financial instruments, is complementary to financing by ownership, which consists of shareholders’ funds and the issuance of shares, so that the financial structure in companies consists of “ownership and indebtedness.”

Materials and Methods: The bank's financial leverage was measured through the use of a number of financial ratios, including total liabilities to total assets and total liabilities to total equity, and its impact on the value of the share was measured by using the SPSS program.

Conclusions: The results showed that there is a positive correlation between the financial leverage ratios and the value of the share. The value of the share was affected by the mortgage crisis of 2007-2008 AD, as it began to decline in 2007 AD from $359.60 to $29.79 in 2009 AD. From research and study, we find, in addition to the effect of financial leverage, the existence of More than one effect on the stock value.
Assessment some of Kidney Function Biomarkers in Iraqi Chronic Myeloid Leukemia
Authors: Obiad Ghania Haider , Abdullah Shaymaa Obaid
Published: October 2023

Background: Kidney injury and consequences will definitely grow more common due to the rise in hematologic malignancies and innovative treatments that are extending patients' lives who have leukemia , so the study aims to evaluate some vital indicators of kidneys function , namely interleukin 18 (IL18) , Kidney Injury Molecules -1 (KIM) , urea, and creatinine in Iraqi chronic myeloid leukemia patients.

Materials and Methods: In our available research, , The study was conducted in the Marjan Medical City Hospital in Babylon Governorate and the Medical City Hospital in Baghdad Governorate, where the ELISA method was used to measure the parameters for the study . The study included 60 patients with chronic myeloid leukemia (17 males and 43 females). And 30 healthy participants who do not suffer from any disease.

Results: The results revealed that that there were extremely significant differences between the control group and patients in the samples examined for the kidney function  test (urea, creatinine, and IL18). While there is a non-significant difference between the control group and patients in terms of kim-1 at a p-value of ≤ 0.05. The study's findings, however, also revealed a non-significant association between age and the levels of (urea, creatinine, IL18, and kim-1), as well as between BMI and the levels of (urea, creatinine, IL18, and kim-1).

Conclusion: As a conclusion that kidney damage is possible in leukemia patients, especially when chemotherapy is taken frequently and long-term.
The Linear Optical Properties of Rhodamin110 Organic Dye Doped with Metal Nanoparticles
Authors: Mahmood Rusul K. , Abbas Talb M.
Published: October 2023

Background:

Laser dyes are unsaturated hydrocarbon compounds that have the advantage of having double or triple bonds coupled with carbon atom chains. This system benefits from light absorption in the visible range (200–700 nm) and the transmission spectrum of absorption in the visible range

Materials and Methods:

This research has focused on the effect of Adding ethanol solution to rhodamine110 dye with different concentrations, the linear properties (permeability, absorbance) of Rhodamine110 dye were studied as it was dissolved in ethanol to prepare solutions with concentrations (0. 01, 0.03, 0.05) and at room temperature

Results:

The absorbance A of Rhodamine110 dye with ethanol was calculated for the above concentrations, respectively, as well as and the transmittance T was calculated for the above concentrations, respectively, to obtain curves and rhodamine110 dyes were mixed with nanomaterials to improve the properties of the dyes

Conclusion:

In this study, According to Beer-Lambert's rule, increasing the dye concentration will increase absorbance, which will raise the linear optical coefficients (refractive index and coefficient of absorption) for all produced samples. The probability of electronic transitions will definitely be affected by the type of solvent., and this has an impact on linear optical characteristics, particularly the positions and width of the absorption spectra. And the addition of nanomaterials added better improvements to the dye. The results showed that the highest linear properties appeared when the silver nanomaterials with rhodamine110 dye
Survival Strategy of Traditional Small Retail in Competition with Modern Large Retail
Authors: Wahyuni Andi Sri
Published: October 2023

This study aims to understand how traditional small retail businesses in Italy compete with large modern retail businesses. This study is a qualitative case study and utilized direct observation for 145 hours in three regions in Italy”Pescara, Chieti, and the factory area”and then conducted a thematic analysis of their survival strategy. The study find that the main factor that determines the sustainability of tabaccai (a traditional small retail in Italy) is the support of the local government, which is strengthened by the local society and the ability of the owners to adapt to the environment. Government support in the form of providing access to limited public goods is an important element in the survival of traditional small retail. These empirical findings provide a new recommendation for traditional small retail businesses in developed countries on how to survive amid the growth of large modern retail businesses.
Study of Solar Cells Using FISH MOSFETs as a Constructive Element to Generate Photocurrent in the Longitudinal Direction
Authors: Pizzo Ribeiro Fernando , Galembeck Egon , A. de Lima Moreto Rodrigo , Pinillos Gimenez Salvador
Published: October 2023

According to a study by the International Energy Agency (IEA), solar energy could reach 30% in 2023 in countries with the most excellent installed generation capacity, such as China, Germany, Japan, and the United States of America. In other countries, like Brazil (mainly in Paraiba state), for instance, the volume of investments in the solar energy sector is equal to 4.17 billion Reais of private investments in 2022 to implement a photovoltaic module factory to reach an installed capacity of 1.6GW. In this context, several efforts have been made to boost the electrical performance of solar cells in terms of using new materials, fabrication processes, and constructive essential elements to produce electric energy with more efficiency. Thus, this paper performs, by three-dimensional numerical simulations, a comparative study between solar cells implemented with constructive elements based on Metal-Oxide-Semiconductor Field Effect Transistors (MOSFETs), N channel, depletion type, with two types of gate geometries, in which one is layouted with the typical rectangular (Rectangular MOSFET, RM) and other is implemented with the FISH layout style (FISH MOSFET, FM). The main results have shown that the solar cell implemented with the FISH MOSFET has an efficiency of approximately 57% higher than that presented in the solar cell implemented with the Conventional MOSFET. Therefore, the solar cells implemented with FISH MOSFETs can be considered an alternative constructive essential element to improve the electrical performance of solar cells.
Three inputs and one output voltage-mode universal biquadratic filter using one CCII and one CCIII
Authors: Horng Jiun-Wei
Published: October 2023

A voltage-mode universal biquadratic filter using one second-generation current conveyor (CCII), one third-generation current conveyor (CCIII), two capacitors and two resistors is presented. The proposed voltage-mode biquadratic circuit has three input terminals and one output terminal and can realize all the standard filter functions that are highpass, bandpass, lowpass, notch and allpass filters without changing the circuit topology. Both its active and passive sensitivities are small. The proposed circuit does not need one more active component for the unity-gain inverting of the input signal in each filter realization.
Improved GaN-based Current Aperture Vertical Electron Transistor (CAVET)
Authors: Dalila HADJEM , KOURDI Zakarya , FOUR Imane , Salim KERAI , Mohammed KHAOUANI
Published: October 2023

The objectives of this research are to improve and optimize a vertically structure HEMT device based on AlGaN/GaN heterojunctions. This novel proposed structure with double gate command would allow for a better dispersion of the electric field, with peaks lower and farther from the surface than a lateral structure. The research focuses on estimating the performance of a GaN-based vertical structure called a "Current Aperture Vertical Electron Transistor (CAVET)" that combines a two-dimensional electron gas (2DEG) and a vertical structure with technology, operation, settings, and performance that can be seen in power applications. Performance operating at high frequencies and low power loss consumer, a device that will, therefore, lead function to best in electrical power and higher system efficiency with IDss equal 0.95 A, -6 V for pinch-off, fT/fMax are 110/250 GHz and 14 % for Drain-lag.
A Design Space Exploration of Power-efficient Gaussian Filter Architectures using Logical Optimization and Approximated Adders
Authors: Monteiro Marcio , Seidel Ismael , Güntzel José Luis , Grellert Mateus , Soares Leonardo , Meinhardt Cristina
Published: October 2023

Gaussian filtering is an important step in many image-processing applications because it reduces image noise.However, this step is also compute-intensive, so power-optimized hardware architectures are necessary to allow its adoption in embedded devices. This work presents a design space exploration of power-efficient Gaussian filter architectures.Differently from related work, this work shows the impacts of the design decisions on two target applications: the Canny Algorithm and an Automatic License Plate Recognition system.To explore the design space, the 3x3, 5x5, and 7x7kernels were logically refactored using Multiplierless Constant Multiplication and Common Sub-expression Exploration. The adders were approximated using the copy strategy to further reduce power consumption. Systematic experiments show the effects of the adopted strategies on power savings and quality of results compared to exact baselines using the two applications.The approximate strategy reached up to 51 dB of Peak Signal-to-Noise Ratio with power reductions of up to 48% in the best-case scenario of the standalone Gaussian filters. Also, the total power of the Gaussian filter in the Canny Algorithm can be reduced down to 34% while maintaining the precision of results between 57% and 90%. Finally, the proposed strategies reduce up to 64% of the Gaussian filter power consumption when adopted in the plate detection solution with a similar detection rate compared to the exact filter architecture.
A Novel Method of Digital-to-Analog Converter Combination for Precise Digital Control in Closed Loop Systems
Authors: Jain Pratik , Priya Priyanka
Published: October 2023

For precise digital control applications, high-resolution feedback is essential to achieve the required performance. Precise control systems with analog input-output and digital processing are generally limited by the resolution of digital to analog converter (DAC). DACs available for space use are limited in terms of resolution and performance. This paper presents a novel approach of combining two DACs to achieve higher resolution in closed-loop control systems. DACs can be combined with an overlapping range such that nonlinearity of higher significant DAC does not cause oscillations and instability when lower significant DAC rolls over. Flowchart of the algorithm for combining two DACs is presented, along with a detailed analysis. Simulation results are also shown elaborating the behaviour of DACs in non-overlapping and overlapping combination methods. The non-overlapping combination may result in oscillations, while the overlapping combination can settle the loop after a small settling time. An implementation example of a digital lock-in amplifier for the Rubidium atomic clock, showing the realization of a coarse-fine DAC combination to achieve 20-bits resolution with two 12-bits DACs, is also presented. This approach will result in achieving better performance in small-bandwidth digital control systems.
On the Use of Low-power Devices, Approximate Adders and Near-threshold Operation for Energy-efficient Multipliers
Authors: Zanandrea Vinicius , Borges Douglas , Rosa Vagner , Meinhardt Cristina
Published: October 2023

With the rising importance of power consumption in battery-powered devices, approximate computing techniques have emerged as a promising approach to strike a balance between exact computation and power savings, leading to improved delays. This paper investigates the combination of near-threshold operation and approximate adders to design power-efficient multipliers. We analyzed four multiplier architectures using 16 nm low-power and high-performance models. At the transistor level, three strategies for approximate full adders are explored, focusing on both partial product reduction and the final addition stage of the multipliers. Eleven test cases are thoroughly evaluated to identify the most suitable approximate circuit, considering the trade-offs among power, performance, and accuracy. The obtained results demonstrate a substantial reduction in power consumption at near-threshold operation. The replacement of exact full adders with the approximate copy strategy in the least significant bits of the multipliers leads to a reduction of up to 34.4% in power consumption and 19.2% in delay. The design-space exploration carried out in this study provides valuable insights for designers to choose the best approximate multiplier based on specific design requirements.
Analysis of Self Regulated Learner of Acceleration Class at Secondary School in Natural Science Subjects Based on Gender
Authors: Rahmaningtyas Novia Dwi , Sartika Septi Budi , Maghfiroh Nuril
Published: October 2023

The purpose of this research is to describe the self-regulated learner (SRL) of male and female accelerated students. The research method used is qualitative phenomenology research conducted at SMP Negeri 1 Sidoarjo. The research focused on one male student and one female student of accelerated class. Data collection techniques used in the research included observation, questionnaire and interview techniques. From the data obtained, data analysis was carried out using three stages including data reduction, data presentation and conclusion drawing.  The results of the research obtained SRL of male and female students lead to academic and non-academic fields, and have unequal abilities in science subjects. Male SRL indicators that are not achieved are organization and seeking help while female SRL indicators that are not achieved are anxiety tests. The factor that influences the non-achievement of SRL indicators is that students are less able to manage organization, seek help and test anxiety on themselves. Future research is expected to develop learning tools to train students' SRL.
Physics Workbook using Multimodal Representation on Simple Harmonic Motion Topic
Authors: Liana Metta , Sinaga Parlindungan , Emiliannur Emiliannur
Published: October 2023

This study aimed to produce teaching materials in workbooks using multimodal representations, which can effectively improve problem-solving and critical-thinking skills. The research method used is the research and development (R&D) method. Test the quality of the workbook developed through validation by three expert lecturers and ten teachers and test the legibility of the main ideas of the discourse by ten high school students. Meanwhile, to test the effectiveness of this research workbook using design randomized control group pretest-posttest design to 70 high school students, 35 each in the control class and 35 in the experimental class. The test results of students' problem-solving and critical-thinking skills were analyzed quantitatively using the N-gain and t-test with the help of SPSS. Based on the main idea's quality and understanding tests, the feasibility percentage of the workbook was 76.35% in the feasible category. Moreover, the effectiveness test results show that workbooks using multimodal representations significantly improve students' problem-solving skills and critical-thinking skills compared to worksheets that can be used in schools.
Selection Criteria in Chilli (Capsicum annuum L.)
Authors:   Agricultural College and Research Institute,TNAU, Madurai 625 104, A SUNDARAM , C.R RANGANATHAN ,   Agricultural College and Research Institute,TNAU, Madurai 625 104, R SETHUPTHI RAMALINGAM ,   Agricultural College and Research Institute,TNAU, Madurai 625 104
Published: October 2023

The present study was made on a group of 50 varieties of chilli. The different discriminant functions were constructed. The genetic advance over straight selection for yield and different discriminant functions were calculated and the efficiencies over straight selection were compared. The study revealed that number of fruits per plant and number of branches per plant are the important characters that should be taken care for selection in hybridization programme.