bluuebunny/crossref_metadata_2025 huggingface dataset:
ONLINE LEARNING: THE EFFECTS OF USING E-MODULES ON SELF-EFFICACY, MOTIVATION AND LEARNING OUTCOMES
Authors: DELITA Fitra , BERUTU Nurmala , NOFRION Nofrion
Published: October 2022

Teachers’ mastery of learning technologies is highly necessary for the digital era. Among such skills is the ability of teachers to package learning materials using various software. One form of presenting learning materials with technology is an e-module. E-modules serve as the main teaching material in online learning and can also be used in face-to-face learning. The purpose of this study was to analyze the effects of using e-modules on self-efficacy, motivation, and learning outcomes in an online learning environment. This research used a quasi-experimental research design with three pretest-posttest groups. The students involved in this study consisted of the control group without e-modules (Group A), the experimental group using emodules independently (Group B), and the experimental group using e-modules collaboratively (Group C). 30 students per group participated in the Geography Learning Planning course. Data was collected through questionnaires and a 10-item essay test and were exposed to descriptive and inferential statistical analyses. The findings showed that the application of e-module in online learning resulted in significant increases in self-efficacy, motivation, and learning outcomes. The e-modules with the collaborative learning option was the most effective. Teachers’ mastery of learning technologies is highly necessary for the digital era. Among such skills is the ability of teachers to package learning materials using various software. One form of presenting learning materials with technology is an e-module. E-modules serve as the main teaching material in online learning and can also be used in face-to-face learning. The purpose of this study was to analyze the effects of using e-modules on self-efficacy, motivation, and learning outcomes in an online learning environment. This research used a quasi-experimental research design with three pretest-posttest groups. The students involved in this study consisted of the control group without e-modules (Group A), the experimental group using emodules independently (Group B), and the experimental group using e-modules collaboratively (Group C). 30 students per group participated in the Geography Learning Planning course. Data was collected through questionnaires and a 10-item essay test and were exposed to descriptive and inferential statistical analyses. The findings showed that the application of e-module in online learning resulted in significant increases in self-efficacy, motivation, and learning outcomes. The e-modules with the collaborative learning option was the most effective.
DISTANCE EDUCATION EFFECTIVENESS AND BARRIERS IN DEVELOPING A POSITIVE ATTITUDE TOWARDS SUSTAINABILITY: MEDIATION OF INNOVATIVENESS
Authors: HARIZAN Siti Haslina Md
Published: October 2022

The objectives of this study are to investigate the effectiveness of distance education in fostering a positive attitude towards sustainability, examine the effects of barriers to sustainability in distance education in terms of the attitude towards sustainability and investigate the mediating effect of innovativeness in the aforesaid relationship. Online survey questionnaires were used to collect data from 663 final-year students enrolled in courses offered through distance education mode at selected universities in Malaysia. The data analysis was based on the partial least squares structural equation modelling (PLS-SEM) approach. This study attests that distance education is effective in nurturing a positive attitude towards sustainability through the mediation of innovation. Although the barriers related to distance education seemed to pose an inverse effect on the attitude towards sustainability, it did not seem to have any significant effect on innovativeness. Future research may investigate the further applicability of this study’s model in various contexts related to the role of distance education in achieving the goals of the sustainable development agenda.
EMERGENCY REMOTE TEACHING DURING COVID-19 PANDEMIC: CHALLENGES, OPPORTUNITIES AND FUTURE SUGGESTIONS
Authors: SARIER Yilmaz , UYSAL Sengul
Published: October 2022

This article explores the perceptions of high school students of emergency remote teaching (ERT) in Turkiye. The research used the qualitative method of conducting semi-structured interviews with 144 students at higher education. The descriptive case study type (a single case with embedded units) was applied. The qualitative data collected through the interviews were analyzed using content analysis technique. Research results reveal that views of the participants on the challenges of ERT are developed into 8 themes: Digital pedagogy, technical infrastructure and accessibility, digital competences, compatibility, assessment and evaluation, heavy workload, and lack of learning motivation while their opinions on opportunities of distance education include 5 themes: lifelong learning opportunities, flexibility, experiencing ERT or hybrid education, digital transformation in education, and an alternative to student mobility. The suggestions made by students are developed into 7 themes: creating accessible materials, university and institutional IT department-supported digital technologies, adopting a flexible approach to student participation, ensuring financial support and equipment, adopting hybrid learning, developing digital competences, and evaluation and assessment methods.
ORGANİK OKUL MODELİYLE YÜRÜTÜLEN HAYAT BİLGİSİ DERSLERİNİN İLKOKUL ÜÇÜNCÜ SINIF ÖĞRENCİLERİNİN BİLİMSEL SÜREÇ BECERİLERİNE VE HAYAT BİLGİSİ DERSİ TUTUMLARINA ETKİSİ
Authors: TURAN Mehmet , EMİR Zeynel Abidin
Published: October 2022

İç içe karma desen kullanılarak yürütülen bu çalışmanın amacı organik okul modeliyle yürütülen hayat bilgisi derslerinin ilkokul üçüncü sınıf öğrencilerinin bilimsel süreç becerilerine ve hayat bilgisi dersine yönelik tutumlarına etkisini incelemektir. Bu amaç doğrultusunda araştırmanın nicel boyutunda tek grup ön-test son-test tasarımı kullanılarak öğrencilerin bilimsel süreç becerilerindeki ve hayat bilgisi dersine yönelik tutumlarındaki değişim incelenmiştir. Ardından öğrencilerin deneyimledikleri eğitimlere dair derinlemesine bilgi edinebilmek amacıyla öğrencilerle odak grup görüşmeleri gerçekleştirilmiştir. Araştırmanın çalışma grubunda 19 öğrenci yer almıştır. Elde edilen nicel veriler Wilcoxon işaretli sıralar testi kullanılarak analiz edilmiştir. Nitel verilerin analizinde ise tematik analiz yöntemi kullanılmıştır. Araştırmadan elde edilen bulgulara göre öğrencilerin bilimsel süreç becerilerinde ve hayat bilgisi dersine yönelik olumlu tutumlarında istatistiksel olarak anlamlı bir artış gözlemlenmiştir. Ayrıca öğrencilerin organik okul modelini sevdikleri, yürütülen dersler süresince stres düzeylerinin düşük seviyede olduğu ve özellikle doğada yapılan etkinliklerden hoşlandıkları görülmüştür. Elde edilen bulgular, organik eğitim yaklaşımı temelinde oluşturulan organik okul modelindeki fiziksel öğrenme ortamının, öğrencilerin bilimsel süreç becerilerini ve işlenen derslere yönelik tutumlarını geliştirmeye katkısı olduğuna işaret etmektedir.
SINIF ÖĞRETMENLERİNİN OKUL YÖNETİCİLERİ İLE İLGİLİ HİZMETKÂR LİDERLİK ALGILARININ İNCELENMESİ
Authors: VATANSEVER BAYRAKTAR Hatice , KORKMAZ Orhan
Published: October 2022

Bu araştırmanın amacı; sınıf öğretmenlerinin okul yöneticileri ile ilgili hizmetkâr liderlik algılarının hangi düzeyde olduğunu belirlemek ve çeşitli değişkenlere göre farklılaşma durumunu incelemektir. Tarama modeline göre yürütülen araştırma, 2020-2021 eğitim ve öğretim yılı içerisinde İstanbul’un Küçükçekmece İlçesindeki Millî Eğitim Bakanlığı bünyesindeki devlet ilkokullarında öğretmenlik yapan toplam 208 sınıf öğretmeni ile gerçekleştirilmiştir. Araştırma kapsamında hizmetkâr liderlik ölçeğinin yanında demografik bilgi formu kullanılmıştır. Aslan ve Özata (2011)’nın geliştirdiği “Hizmetkâr Liderlik Ölçeği” 3 boyuttan ve 14 sorudan oluşmaktadır. “Hizmetkâr Liderlik Ölçeği” güçlendirme, hizmet ve vizyon olarak boyutlandırılmıştır. Araştırmada elde edilen verilerin analizi SPSS 26.00 programı ile yapılmıştır. Verilerin analizinde bağımsız grup t testi, aritmetik ortalama ve standart sapma kullanılmıştır. Verilerin analiz sonuçlarına göre sınıf öğretmenlerinin okul yöneticileri ile ilgili algılarının yüksek seviyede olduğu tespit edilmiştir. Hizmetkâr liderlik algısının güçlendirme alt boyutunun yüksek seviyede; Hizmet alt boyutunun orta seviyede ve Vizyon alt boyutunun yüksek seviyede olduğu saptanmıştır. Sınıf öğretmenlerinin okul yöneticileri ile ilgili hizmetkâr liderlik algıları cinsiyet, eğitim durumu, mezuniyet durumu ve medeni durum değişkenlerine göre incelenmiştir. Sınıf öğretmenlerinin hizmetkâr liderlik algıları mezuniyet durumu ve eğitim durumu değişkenlerine göre istatiksel olarak anlamlı bir farklılık göstermektedir. Ortaya çıkan anlamlı farklılık diğer fakülteleri bitirenler ve yüksek lisans mezunları lehinedir. Sınıf öğretmenlerinin hizmetkâr liderlik algıları cinsiyet ve medeni durum değişkenine göre istatistiksel olarak anlamlı bir farklılık göstermemektedir. Araştırma sonucunda okul yöneticilerine hizmetkâr liderlik davranışlarına yönelik hizmet içi eğitimler verilebilir ve eğitim düzeylerinin arttırılması önerilebilir.
GELİŞME EKONOMİSİ POLİTİKALARINDA SON YÜZYILDA YAŞANAN DEĞİŞİM VE GÜNÜMÜZDE ÖNE ÇIKAN HUSUSLAR
Authors: Bedir Atila
Published: October 2022

Gelişme ekonomisi politikaları, başka bir ifadeyle büyüme başta olmak üzere ülkelerin iktisadi ve sosyal kalkınma amaçlı politika tercihleri, esasen İkinci Dünya savaşı sonrasında olmak üzere, geçmişten günümüze her dönemin şartları ve bu dönemlerde öne çıkan iktisat düşünce iklimi çerçevesinde şekillenmektedir. Bu çalışmanın amacı, son yüzyılda iktisat politikalarında, daha tanımlı ifadeyle gelişme ekonomisi politikalarında yaşanan değişimin incelenmesi ve bu süreçte yaşanan temel politika değişikliklerinin altında yatan hususların irdelenmesidir. Ayrıca ulusal ve uluslararası düzeyde karşılaşılan sorunlar ve yaşanılan eşitsizliklerin de etkisiyle şekillenen günümüz gelişme ekonomisi politikalarında öne çıkan hususlar ele alınmaktadır. Çalışmada yöntem olarak kronolojik bir süreç izlenmekte, temel politika değişimi ya da tercihlerinin neden ve sonuç bağlantılarının kurulmasına çalışılmaktadır. Günümüz gelişme ekonomisi politikalarında sürdürülebilir kalkınma ve büyümenin kapsayıcılık niteliğinin güçlendirilmesi önem kazanmaktadır. Ekonomide rekabet gücünün artırılması, değişen işgücü talebine uygun mesleki beceri kazanımı ve etkin sosyal koruma sistemlerine olan ihtiyaç artmaktadır. 1960’lı yılların planlı kalkınma modellerinden farklı olmakla birlikte, ekonomilerin işleyişinde plan, program ve stratejilere dayalı süreç işletiminde artış yaşanmaktadır. Gelinen noktada, 1980 sonrası uygulanan etkinlik, büyüme ve istikrar esaslı politikalar yerine iktisadi, sosyal ve çevresel konularda daha dengeli bir gelişme sürecinin amaçlandığı görülmektedir.
A Fault-Based Crustal Deformation Model with Deep Driven Dislocation Sources for the 2023 Update to the U.S. National Seismic Hazard Model
Authors: Zeng Yuehua
Published: October 2022

A fault-based crustal deformation model with deep driven dislocation sources is applied to estimate long-term on-fault slip rates and off-fault moment rate distribution in the western United States (WUS) for the 2023 update to the National Seismic Hazard Model (NSHM). This model uses the method of Zeng and Shen (2017) to invert for slip rate and strain-rate parameters based on inputs from Global Positioning System (GPS) velocities and geologic slip-rate constraints. The model connects adjacent major fault segments in California and the Cascadia subduction zone to form blocks that extend to the boundaries of the study area. Faults within the blocks are obtained from the NSHM geologic fault section database. The model slip rates are determined using a least-squares inversion with a normalized chi-square of 6.6. I also apply a time-dependent correction called “ghost transient” effect to account for the viscoelastic responses from large historic earthquakes along the San Andreas fault and Cascadia subduction zone. Major discrepancies between model slip rates and geologic slip rates along the San Andreas fault, for example, from the Cholame to the Mojave and San Bernardino segments of the San Andreas, are well reduced after the ghost transient correction is applied to GPS velocities. The off-fault moment rate distribution is consistent with regional tectonics and seismicity patterns with a total rate of 1.6×1019  N·m/yr for the WUS.
Procjena
mogućeg porasta štetnosti žute kukuruzne sovice (Helicoverpa armigera Hübner) u Hrvatskoj
Authors: Virić Gašparić Helena , Vučemilović Jurić Domagoj , Bažok Renata
Published: October 2022

Žuta kukuruzna sovica (Helicoverpa armigera Hübner) značajan je polifagni štetnik kukuruza, duhana, pamuka, slanutka i rajčice. Štete čine gusjenice ishranom na vegetativnim i generativnim dijelovima biljaka domaćina. Štete u svijetu procjenjuju se na dvije milijarde dolara godišnje. Rasprostranjena je na području Azije, Afrike, Južne Amerike, Europe i Australije. Migratorna je vrsta i može se kretati na veće udaljenosti. Godišnje ima 2 do 3 generacije na našim prostorima, a u tropskim uvjetima može razviti do 11 generacija. Pojavi žute kukuruzne sovice pogoduju visoke temperature tijekom proljetnog i ljetnog razdoblja te veće količine oborina tijekom proljeća. Porastom temperatura skraćuje se vrijeme potrebno za čitav životni ciklus. S obzirom na to da se do kraja sljedećeg stoljeća predviđa povećanje srednje dnevne temperature za 3°C, može se očekivati povećanje broja generacija i štetnosti H. armigera. Zbog nedostatka raspoloživih mjera suzbijanja, praćenje biologije i migracijskog kretanja H. armigera važno je za procjenu rizika od prodora na neko novo područje ili usjev.
Prácticas de control de robots paralelos en el espacio de estados usando un laboratorio remoto
Authors: Peidró Adrián , Payá Luis , Reinoso Óscar , Ballesta Mónica , Gil Arturo
Published: October 2022

Este artículo presenta un laboratorio remoto para realizar prácticas de control en el espacio de estados con dos robots paralelos reales, a través de Internet. Se presenta la arquitectura cliente-servidor de este laboratorio, en la que el cliente es una interfaz Java de control usada por el estudiante para comandar experimentos y visualizar resultados, mientras que el servidor es un PC industrial que controla ambos robots paralelos mediante una tarjeta de control dSPACE 1103 y una serie de componentes software que incluyen Matlab, Jimserver, y un gestor de reservas y de credenciales para garantizar un acceso seguro a los robots remotos. Se describen varias prácticas que pueden realizarse con este laboratorio remoto, como la identificación del modelo dinámico multivariable de los robots paralelos, el diseño de controladores integrales con estado realimentado, o el estudio de la pérdida de controlabilidad de dichos robots a medida que se aproximan a singularidades.
Digital twins of rotary motion and cart-pendulum platforms for education in automatic control
Authors: Traver José Emilio , Nuevo-Gallardo Cristina , Rodríguez Paloma , Tejado Inés , Vinagre Blas M.
Published: October 2022

Modern educational systems, similarly to Industry 4.0, are focusing their efforts to the development of new digital resources that allow to understand, simulate, predict, and optimize real systems through virtual replicas. In this sense, digital twins (DTs), which are high-fidelity virtual or digital representations of a physical product or process, are turning into a disruptive trend in the education sector and its influence is expected to be significant on future of many degrees, especially in engineering. This paper presents the DTs of three educational platforms which are widely used in automatic control for educative purposes: rotary motion equipment developed by Quanser, and a cart-pendulum platform developed by Feedback Instruments. The DTs have been built in the MATLAB®/Simulink© environment thanks to the physical modeling toolbox SimscapeTM through blocks contained in its libraries rather than using mathematical models. A set of possible control exercises that can be performed by students of automatic control courses are proposed, which are supported by the use of these educative resources.
Control de caudal con un sensor virtual basado en técnicas de deep learning
Authors: González Herbón Raúl , Rodríguez Ossorio José Ramón , González Mateos Guzmán , Morán Álvarez Antonio , Alonso Castro Serafín , Fuertes Martínez Juan José
Published: October 2022

En el ámbito del control industrial, resulta sumamente interesante el empleo de sensores virtuales en los casos en los que no se puede tener acceso a la variable física a controlar, bien sea porque el sensor real es costoso, no puede ser instalado o se encuentra averiado. En este artículo se propone la implementación de un lazo de control del caudal de una planta piloto industrial, comparando el desempeño de este lazo cuando se emplea el caudalímetro real y cuando se emplea un sensor virtual de caudal. El sensor virtual utilizado se ha desarrollado empleando una red neuronal recurrente.
Marco teórico para el estudio de la generación de potencia en aerogeneradores operando a velocidades de viento baja
Authors: Miquelez-Madariaga Irene , Lizarraga-Zubéldia Idoia , Díaz de Corcuera Asier , Elso Jorge
Published: October 2022

Cuando trabajan por debajo de su potencia nominal, los aerogeneradores deben seguir los cambios en la velocidad de viento para asegurar una producción de energía óptima. En ese caso, el control empleado de manera tradicional consiste en una realimentación no lineal de la velocidad del generador. En este artículo se propone un enfoque del problema basado en el uso de modelo lineales representados en el dominio frecuencial. De este modo, no solo podemos analizar la eficiencia de la estrategia empleada actualmente sino evaluar los posibles beneficios de otras estrategias de control complementarias. Para validar el análisis del modelo lineal, se propone estudiar la energía generada a través de una descomposición frecuencial de la señal de viento. Por último, se propone una señal de par óptima basada en la medida de viento.
Diseño de un controlador multivariable para la regeneración de aguas con nanofiltración
Authors: Roca Lidia , Miguel Serrano Juan , Laconis Franceso , Rodríguez Francisco , Oller Isabel , Malato Sixto
Published: October 2022

Una de las principales preocupaciones sobre la regeneración de aguas municipales residuales es la eliminación de microcontaminantes, como plaguicidas o compuestos farmacéuticos, junto con microorganismos perjudiciales. Una metodología para llevar a cabo dicha eliminación es mediante la combinación de sistemas de nanofiltración apropiados con sistemas avanzados de oxidación. Este trabajo se centra en mejorar el proceso de nanofiltración desde el punto de vista del control automático, con el fin de contribuir a la posible industrialización del proceso para la aplicación de separación y pre-concentración de microcontaminantes de efluentes procedentes de plantas de tratamiento de aguas residuales municipales. Al tratarse de un sistema multivariable con interacción, se ha aplicado la técnica de desacoplamiento invertido en simulación, mejorando la calidad del control en un 18% frente al caso sin desacoplo.
Generación híbrida de frío para sistemas de climatización
Authors: Acedo Bueno Luis Fernando , Jáimez Aguilera Francisco José , Garrido Satué Manuel , Gil Ortega Linares Manuel , Rodríguez Rubio Francisco
Published: October 2022

El artículo presenta el modelado de un sistema de refrigeración que combina una planta solar de absorción y un sistema de producción de frío basado en enfriadoras refrigeradas por aire. Se pretende satisfacer la demanda de frío de una instalación haciendo que ambas plantas trabajen en paralelo, priorizando el abastecimiento de energía frigorífica por parte de la planta solar. El modelado de cada uno de los componentes se han implementado en Simulink, para poder obtener la simulación de la planta. El sistema de refrigeración propuesto presenta lazos de control para mantener las variables de salida en las referencias de caudales y temperaturas deseadas. Finalmente, se han presentado resultados de simulación que muestran el comportamiento de la planta completa.
Planificador óptimo para una planta de frío industrial mediante regularización binaria
Authors: Garrido Satue Manuel , Vasallo Vázquez Manuel Jesús , Gil Ortega Linares Manuel , Ruiz Arahal Manuel
Published: October 2022

En este artículo se presenta un planificador óptimo para decidir tanto el nivel de carga instantáneo como el estado encendido/apagado de una serie de máquinas enfriadoras que funcionan en paralelo para abastecer la demanda de frío de una gran instalación. El optimizador tiene un objetivo doble: minimizar el consumo eléctrico de las enfriadoras manteniendo el número de conmutaciones lo más bajo posible. La principal novedad es el uso del concepto de regulación binaria en la función de coste del optimizador. Para seleccionar los valores más adecuados de los pesos de ponderación asociados a los distintos términos de la función de coste se ha realizado un estudio de las posibles soluciones mediante una batería de simulaciones.
Adaptación dinámica de frecuencia de intercambio de datos en una simulación distribuida
Authors: Gutiérrez Fernando , Mazaeda Rogelio , Zamarreño Jesús María
Published: October 2022

Este artículo describe un administrador de simulación dinámica distribuida, usando programación en PYTHON, que utiliza el estándar de interoperabilidad OPC UA para comunicarse con los diferentes servidores que constituyen unasimulación distribuida, actuando como cliente configurable. Los servidores OPC UA se implementan utilizando una herramienta de modelado de procesos y simulación externa. Para que dicha herramienta tenga un funcionamiento acorde a las necesidades de la simulación, debe disponer de alguna forma de control de la frecuencia de intercambio de datos a medida que el proceso evoluciona. En la presente contribución se describe el desarrollo de una estrategia de adaptación de la frecuencia de intercambio de información entre los diferentes servidores mediante comparación con una simulación de referencia desarrollada en paralelo o por la obtención de una referencia anterior. Mediante esta estrategia, se lleva a cabo la configuración de las condiciones de simulación, la medición del error y la adaptación del tiempo de intercambio, de manera análoga a los algoritmos de control de paso empleados tradicionalmente por algunos algoritmos de integración dinámica.
Tüketicilerin Mahreç İşaretli Gümüşhane Ev Tipi Dut Ürünleri Satın Alma Motivasyonu: Gümüşhane Örneği
Authors: TOPCU Yavuz , ÇAVDAR Mustafa
Published: October 2022

Bu çalışmanın amacı, Gümüşhane’de ikamet eden tüketicilerin geleneksel yöntemlerle işlenmiş mahreç işaretli Gümüşhane ev tipi dut ürünlerini satın alması üzerinde etkili olan motivasyon faktörlerini ortaya koymak ve her bir kitle için müşteri odaklı pazarlama stratejilerini belirlemektir. Çalışmada kullanılan veriler, Basit Tesadüfi Örnekleme Yöntemi ile 2017 yılında Gümüşhane İlinde bu ürünleri tüketen 300 hane halkı ile yapılan anket çalışmasından elde edilmiştir. Elde edilen veriler, tüketim motivasyon faktörlerini belirlemek için Temel Bileşenler Analizi ve homojen tüketici gruplarını oluşturmak için de K-Ortalamalar Küme Analizinde kullanılmıştır. Araştırma sonuçları; mahreç işaretli Gümüşhane ev tipi dut ürünlerini yoğun düzeyde tüketen kullanıcıların satın alma memnuniyeti üzerinde kültürel entegrasyon ve sosyal çevrenin etkisi altında yüksek besin değerli beğenmeli mamullere ulaşımı temel alan hedonik ve faydacı motivasyon faktörlerinin önemine vurgu yapmıştır. Benzer şekilde, ılımlı düzeyde tüketen tüketicilerin tüketim motivasyonu üzerinde pozitif sağlık güdüsü altında yüksek besin değerli doğal yerel ürünlere doğrudan pazarlama yaklaşımı ile bölgesel kalkınmaya katkı sunan faydacı ve hedonik motivasyon faktörleri etkili olmuştur. Diğer taraftan düşük düzeyde dut ürünleri tüketen kullanıcılar, sosyal entegrasyon altında tamamlayıcılık niteliği arz eden beğenmeli doğal yerel ürünlere ulaşım için doğrudan pazarlama yaklaşımıyla bölgesel kalkınmaya katkı sunmak için hedonik motif faktörleri üzerine odaklanmışlardır. Sonuç olarak, her bir tüketici kitlesi için hedonik ve faydacı motivasyon odaklı pazarlama stratejilerinin uygulanması hem tüketicilerin tüketim memnuniyetlerini hem de arz edenlerin kazançlarını maksimum kılabilir.
Example of Sexual Dimorphism and Structural Defects in Some Aquatic Insects (Coleoptera)
Authors: BEKTAŞ Mehmet
Published: October 2022

Freshwater is a very important part of the ecosystem. Aquatic insects are at the center of importance of fresh waters due to their remarkable number and diversity.. The purpose of this study was to compare the morphological differences in male and female individuals with the arithmetic mean of some body measurements and to give a summary of rare unexpected structural disorders. On observing sexual dimorphism, Helophorus aquaticus Linnaeus, 1758 (Coleoptera) specimens were selected from the samples collected from Erzurum Wetlands (Turkey) between April and October (2021), as it has a large body and their number in the collection was sufficient. Measurements were performed under a stereo microscope. In this context, some differences in measurements were evaluated by considering sexual dimorphism, some structural disorders and gender-developmental stages in our study. Along with some ecological data, like sexual difference of approximately 100 samples, measurement differences were identified with body length 0.1-0.4 mm, body width 0.1-0.3 mm and leg length 0.1-0.3 mm. There are differences in measurements between the two groups, and in some species belonging to some families of the other Coleptera order, individuals with structural disorders have been identified.. It is believed that the developmental stages and sexual dimorphism size differences are important data for future ecological and evolutionary studies.
Covid-19 és krónikus fájdalom: online felmérés a pandémia alatt fájdalommal élő, ellátásban nem részesülő személyek körében
Authors: Nemes Annamária , Csabai Márta , Szok Délia
Published: October 2022

A Covid-19-járvánnyal járó problémák a krónikusbeteg-populációkra vannak a legrosszabb hatással. A stressz, a mindennapi rutin felbomlása, családi problémák, a megbetegedés és az ellátás nehezítettsége miatt a krónikus fájdalommal élők az egyik kiemelkedően veszélyeztetett csoport. Ezért elengedhetetlen felmérni ennek a csoportnak a helyzetét, pszichés jóllétét. A jelen kérdőíves felmérés célja a következő volt: a krónikus fájdalommal élő személyek felmérése a Covid-19-pan­dé­mia alatt, kitérve a fájdalommal összefüggésbe hozható pszichés háttértényezőkre, mint a depresszió, az érzelemszabályozás, az alexithymia, a jóllét, az egészségértés és a társas támogatás. A felmérés 158 főt vizsgált, akiknél legalább 3 hónapja állt fenn valamilyen fájdalom, de orvosi ellátásban nem részesültek. Az adatfelvétel két időpontban zaj­lott: 2021. februárban és decemberben. A pandémiára való tekintettel a felmérés online, kérdőíves módszerrel zajlott. A felmérés során a következő hat pszichológiai tesztet alkalmaztuk: Torontói Alexithymia Skála, Beck Dep­resszió Kérdőív rövidített változata, Érzelemszabályozási Nehézségek Kérdőív, Multidimenzionális Észlelt Társas Támogatás Kérdőív, az egészségértést mérő Chew-kér­dé­sek és a WHO Jóllét Kérdőív. A vizsgálati személyek életkora 20–80 év közötti, 140 (88%) nő. Negyvenkét fő (27%) érte el a súlyos alexithymia mértékét. Depresszió 118 főnél (75%) volt kimutatható, melyből 72 fő (46%) enyhe, 26 fő (16%) közepesen súlyos és 20 fő (13%) súlyos depresszióval érintett. A fájdalom mértéke és az alexithymia [r(158) = 0,16, p = 0,004], a depresszió [r(158) = 0,41, p < 0,001], az érzelemszabályozási nehézségek [r(158) = 0,26, p = 0,004], az egészségértési és érzelemszabályozási nehézségek [r(158) = 0,25, p = 0,001] között pozitív, szignifikáns korreláció volt kimutatható. A fájdalommal élő személyeket jellemző komorbiditások (szorongás, hangulatzavar, alvászavar) mellett a járvány indukálta hosszan tartó szociális izoláció, stressz és a félelem magyarázhatja a depresszió, az ér­ze­lemszabályozási nehézségek és az egészségértési problémák magas arányát a vizsgált mintában, amik tovább súlyosbítják az alexithymia és a fájdalom mértékét. Ezek alapján fontos felhívni a szakemberek figyelmét az érintett személyek megfelelő egészségügyi ellátására és edukációs szükségleteire.
The effects of ultra-early clipping on survival and neurological outcome in poor-grade aneurysmal subarachnoid haemorrhage
Authors: Şimsek Osman , Akinci Ahmet Tolgay
Published: October 2022

European Stroke Organisation guidelines advise treating aneurysmal subarachnoid haemorrhage (aSAH) as early as possible. However, the optimum timing along with its beneficial effects is controversial. Therefore, we aimed to investigate the effects of ultra-early clipping on neurological outcomes and survival in poor-grade aneurysmal subarachnoid haemorrhages. This retrospective study included all poor-grade aneurysmal subarachnoid haemorrhage patients treated by ultra-early surgical clipping at Trakya University Hospital between January 1, 2001, and December 31, 2020. We analysed the outcome and mortality data of these patients. Specifically, we evaluated the effects of ultra-early clipping on outcomes, defined as within six hours of the onset of symptoms. From 813 records, 212 met our inclusion criteria. Of these, 117 (55.2%) were female and 95 (44.8%) male. The mean age was 58.3 ± 13.7 years. Glasgow Outcome Scale scores differed significantly between age groups, subarachnoid haemorrhage grades, those who did and did not rebleed, and those who did or did not suffer from vasospasms. A beneficiary relationship was found between ultra-early clipping and mortality among patients. Furthermore, favourable outcomes were significantly more frequent in the ultra-early clipping group. The aSAH patients treated at our hospital who received ultra-early clipping had significantly lower mortality rates and more favourable outcomes. The difference was significant among those treated during the last decade and among patients younger than 50.
Comparison of long-latency reflex and mixed nerve silent period responses in various hypokinetic movement disorders
Authors: Turk Bengi Gul , Gunduz Aysegul , Kiziltan Gunes , Erdemir-Kiziltan Meral
Published: October 2022

Long-latency reflex and mixed nerve silent period responses are electrophysiological methods to study the sensorimotor functions of the central nervous system. Here we aimed to study long-latency reflexes and mixed nerve silent period responses in different types of hypokinetic movement disorders in order to find an electrophysiological landmark to distinguish them. We included 39 patients with idiopathic Parkinson’s disease (IPD), 12 patients with multiple system atrophy (MSA), 10 patients with corticobasal syndrome (CBS), 5 patients with progressive supranuclear palsy (PSP) and 26 healthy participants. We recorded the segmental reflex, the long-latency reflexes and the mixed nerve silent period responses for each participant. C reflex, long-latency reflex-I and long-latency reflex-III responses were not obtained in any patients with PSP. Long-latency reflex amplitude/ F amplitude ratio was significantly lower in patients with IPD and PSP compared to healthy individuals (p=0.036, p=0.006 respectively). The mixed nerve silent period end latencies were significantly longer in IPD, MSA, CBS groups compared to the healthy individuals (p=0.026, p=0.050, p=0.008 respectively). We suggest that recording long-latency reflex, particularly C reflex responses may provide promising results in distinction of CBS and MSA from PSP. Prospective studies with clinical findings and brainstem reflexes may offer more information.
Heart Diseases of Uncertain Etiology: Epidemiological Observations Compared with Clinical Experience
Authors: Puddu Paolo , Menotti Alessandro
Published: October 2022

Backgrounds and Aims: Simple, long-term epidemiological observations allowed to identify a heterogeneous group of heart diseases manifested only as heart failure, arrhythmia and blocks in the absence of typical coronary syndromes, that we arbitrarily called initially atypical Coronary Heart Disease (CHD) and then Heart Disease of Uncertain Etiology (HDUE) in 12 published investigations. Methods and Results: This group of heart diseases covered about 20% of all CVD mortality and about 10% of all-cause mortality in population cohorts close to extinction and compared with typical CHD was characterized by a strong association with age and the absence or an inverse association with serum cholesterol, dietary habits and physical activity. Moreover, HDUE appeared at an older age and had a higher age at death. Blood pressure and smoking habits (the latter with some uncertainties) were directly associated with the disease. Old pathology findings had already segregated the large myocardial scars due to gross atheroma of coronary arteries from small multiple sclerotic/fibrotic scars that seem independent and unrelated to coronary atheroma. Conclusion: Etiology of HDUE, although probably multiple, is still vague and elusive, and the Literature was little informative about its relative frequency and possible causality. Future investigations might be stimulated by this review. To segregate HDUE from CHD should be important to correctly assess relationships among multiple risk factors and differential or condensed outcomes.
Oral Biofilms and their Connection to Systemic Health
Authors: Kurtzman Gregori , Horowitz Robert , Johnson Richard , Prestiano Ryan , Klein Benjamin
Published: October 2022

Systemic and oral health are interconnected via bacteria and their byproducts which can circulate throughout the body which are found in the oral biofilm. Oral biofilm and its associated periodontal health have not been frequently addressed in patients with systemic health issues. This is especially true for those patients who do not respond to medical treatment via their physician for systemic issues. The periodontal sulcus in the absence of clinical presence of periodontal disease (bleeding on probing, gingival inflammation) may have oral biofilm present. Periodontal reaction is dependent on the patient’s immune response to the associated bacteria and their byproducts present in the oral biofilm. Increasing evidence has emerged in recent years that are connecting oral biofilms with systemic conditions, either by initiating them or by complicating those medical conditions. Patient health needs to be considered as a whole-body system with connections that may originate in the oral cavity and have distant effects throughout the body. In order to maximize the patient’s total health, healthcare needs to be a coordination between the physician and dentist to eliminate the oral biofilm and aid in the prevention of systemic disease or minimize these effects to improve the overall patient health and their quality of life. Various systemic health areas have been associated with the bacteria in oral biofilms and their byproducts. Those include cardiovascular disease, chronic kidney disease, diabetes, pulmonary disease, prostate cancer, colon cancer, pancreatic cancer, pre-term pregnancy, erectile dysfunction, Alzheimer’s disease, and rheumatoid arthritis. This article will discuss oral biofilm, its systemic effects, and review the medical conditions associated with the oral systemic connection with an extensive review of the literature to aid in demonstrating the total body connection.
The Effect of DER, Firm Size, and CR on PBV with ROE as an Intervening Variable
Authors: Pustika Titin Hestri , Hariyanto Dedi , Safitri Heni
Published: October 2022

Research aim: The study is intended to analyze the influence of debt-to-equity ratios, firm size, and current ratio on price-to-book value using the return on equity as an intervening variable.Design/Methodology/Approach: The population in this research was basic materials sector companies listed on the Indonesia Stock Exchange (IDX) from 2018 to 2020. Meanwhile, the number of samples in this study was 70, collected by purposive sampling. Research findings: This study confirmed that DER had a good and strong effect on ROE. Firm size and CR had no considerable influence on ROE. ROE had a significant positive effect on PBV, while DER, firm size, and CR had no significant impact on PBV. In addition, ROE was susceptible to being an intervening variable of a DER but was not susceptible to being an intervention variable of firm size and CR variables.Theoretical contribution/Originality: The return on equity (ROE) variable served as the intervening variable in the study, while in previous studies, DER, firm size, and CR variables were not intervened by ROE.Practitioner/Policy implication: Researchers suggest that investors can use other variables to make investment decisions. Researchers can also further develop broader objects, such as using other sectors and adding or replacing other variables to determine the feasibility of investing.Research limitation: The scope of this study was relative, and there were many insignificances due to the limited variables and sectors used. Hence, increasing the number of variables and a wider sector will be able to strengthen this research’s outcomes. Further research must be able to produce significant values and affect the variables in question.
Prevalence of otomycosis in the district hospital IV of Bamako, Mali
Authors: Baba Sacko Hamidou , Aminata Kodio , Dicko Abdoul Razak , Gadi Timbine Lassina
Published: October 2022

Background: Otomycosis is more and more found in chronic suppurative otitis media (CSOM), several factors (iterative antibiotic therapy, self-medication, general chronic diseases, climate), may explain this phenomenon which makes it more complex to start an adequate therapy. Objective was to highlight the place of otomycosis in chronic purulent otorrhea of the middle ear in tropical settings. Study settings were like the ENT unit of the reference health centre of commune IV of the district of Bamako, the Rodolphe Mérieux laboratory.

Methods: We identified the bacteriological samples taken in our unit between February 2009 and February 2018.

The study involved 178 samples from a number of patients estimated at 148 with chronic purulent otitis media. All samples collected were transported and evaluated by both direct microscopic examination and culture method for bacteria and fungi examination, which were identified by standard procedures.

Results: The female sex predominated with 60.82%. The mean age of the patients was 27 years (range 5 months to 91 years). Among 170 samples, 36.19% yielded fungal growth, 59.7% grew bacteria and 50.94% showed mixed growth of fungi and bacteria. Major fungal isolates were candida species (n=38). 21 isolates were identified as Aspergillus.

Conclusions: This study will have made it possible to confirm the significant place of otomycosis in the chronic suppurative pathology of middle ear in our structure, requiring its consideration in the adequate treatment of CSOM.
Dealing with an International Credit Crunch: Policy Responses to Sudden Stops in Latin America
Authors: Izquierdo Alejandro
Published: October 2022

As the world confronts an oppressive credit crunch, it is useful to review the policy responses of countries to the systemic sudden stops of the 1990s. Countries have experimented widely, providing a rich array of cases that offer useful policy lessons. This book documents success stories in Chile, Peru and Brazil, and outlines lessons learned from unsuccessful cases as well. It also takes a more systematic approach in analyzing the impact of policies for a wider range of emerging markets.
Key factors that influence students’ motivation to learn: Implications for teaching
Authors: Hodis Flaviu A. , Hodis Georgeta M.
Published: October 2022

Multiple motivation factors work together to influence how students learn and achieve. Motivation can be enhanced by instruction that supports learning-related expectancies of success and strengthens perceptions that learning is useful. It also helps to keep in check students’ beliefs that learning involves unreasonable effort, emotional, or opportunity costs. This article provides a set of strategies that teachers could use in their instruction both to strengthen students’ confidence in their abilities and their utility/relevance beliefs, and to reduce their perceptions that learning requires incurring significant costs. These strategies, which are based on insights from both conceptual and empirical research, including our own research, could also help teachers reflect on their pedagogical practice.
The model of learning and cognitive motivation development by means of multylingual education of high school students
Authors:   Tyumen State University, Bool V. V. ,   Gymnasium No. 83
Published: October 2022

The paper studies the role of language for pedagogy in general and the formation of the student's personality in particular. In the modern world, multilingualism has already become an indispensable condition for the sustainable development of a country; bilingual approaches are being replaced by multilingual approaches. There is an acute issue in the organization of consistent and systematic training on a multilingual basis. Despite the status of these areas, there are a number of contradictions, the main of which is that describing multilingual education as a system they do not address its latent potential, especially in the field of motivation development. In this situation, the way out is to develop a fundamentally new concept of multilingual education, which provides a synthesis of linguistic, meta-subject and intercultural components in order to form a positive motivation for learning among high school students. This model is presented as a complex system of interaction between the personalities of the teacher and the student and their activities under the influence of external factors based on the principles of multilingual education, which is implemented in the process of immediate and proactive pedagogical assistance. The paper describes factors (individual, educational and social), conditions (the formation of personal interest and the use of the principles of multilingual education) and stages (initial, transitional, main and final) of motivation development, as well as goals, objectives and methods of each stage. The designed model will allow teachers to study and analyze the levels of educational motivation development, adjust it during training and use the untapped potential of multilingualism in a real pedagogical situation.
The research method of studying physics as a way of forming general professional competencies among university students
Authors:   Moscow State University of Technologies and Management, Zubova N. V.
Published: October 2022

At present, with the continuous growth of scientific and technological progress, the study of physics plays an important role. University students are required to master competencies aimed at developing skills for applying physics knowledge in solving research problems. However, university students often have difficulties in studying physics. The purpose of the study is to propose a research method for studying physics based on a system-activity approach for the formation of general professional competence which in its turn aimed at the formation of ways of activity while solving research problems by university students. The author proposes a research method of studying physics including tasks for mastering fundamental knowledge of the nature, the acquisition of practical skills, and the formation of a skill to use knowledge in the research activity. The paper presents a model of the phased implementation of the research method of training based on a system-activity approach indicating the types of tasks and the content of competence indicators. The author considers the method of application of the proposed methodology with the description of the order of executing a research task in the physics section “Waves”, conducts a pedagogical experiment using testing of knowledge of physics among the technology university students. The author carried out the statistical analysis of experimental data using the Student’s t-test. The study shows that students who studied physics based on the research method of teaching physics have successfully mastered the system of knowledge, practical skills, and acquired skills that contribute to the formation of a general professional competence. This shows the effectiveness of the author’s methodology based on the research method of teaching physics to university students.
Basics of solid CAD system modeling in teaching
Authors:   Togliatti State University, Puteev P. A.
Published: October 2022

The paper considers the problem of teaching 3D solid modeling in the parametric computer-aided design systems when training students and specialists who need proper occupational study. The author describes the importance of this design method for the production tasks and the problems related to the lack of algorithmization tools of such training. The author proposes using two interrelated techniques: solid geometry modeling and teaching this kind of design. To solve the development task of the first technique, the author proposes to supplement the solid modeling terminology in Russian and formalize the features of solid geometry decomposition. The paper introduces three ways of solid decomposition based on the criteria of the sketch form and specification tree. The author proposes a design technique algorithm consisting of two stages. Each stage is divided into four steps, and the features of some steps are described. Further, the author presents the technique of teaching solid modeling. This technique is based on the frequency of using solid primitives and the necessity to develop tasks for students depending on this frequency. The author identifies the main skill to be mastered by the students. The technique introduces the ways of solving problems faced by students and engineers during solid modeling. The author proposes the distribution of hours for training basic concepts of solid modeling. The paper presents the teaching technique implementation in the existing higher school educational programs and proposes its deployment to the related areas of design.