European Scientific Journal, ESJ
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Advantages of Tissue Level Implants in Case of Alveolar Ridge and Mucosal Atrophy
Get PDFIn the modern market, there is a great variety of dental implants, which differ from each other in design, geometry, connection type, surface treatment technology, etc. However, the most fundamental and main differentiating component between implants is how the implants are inserted into the bone and how it is positioned concerning the soft tissues. Accordingly, they are divided into sunken, i.e., bone level implants and non-sunken, i.e., tissue level implants, in which case the implant-abutment connection, or interface, is located at the gum level. This study shows advantages of tissue level - implants in atrophy of the alveolar ridge, also studies comparison of bone loss in case of bone - level implants and tissue level implants
The Legal Dimension of the Formation and Function of the Hellenic Supremes Councils for Marine Accidents
Get PDFShipping is perhaps the largest industry globally, transporting more than 90% of the world's trade efficiently and safely. Ships, given their activity on a global scale, are subject to different legal regimes. However, marine accidents with adverse consequences for the environment and people still occur. Hellas, as a country with a strong maritime tradition and with one of the largest shipping companies in the world since the 70s, has established a special legislative framework for the investigation of marine accidents with the Act Decree (A.D.) 712/1970 (A΄ 237). This special legislative process will be critically examined in this brief study
Revisiting Punjab’s Transformative Journey, 1947-1966: An Appraisal
Get PDF"Punjab, often referred to as the 'Land of five rivers,' has been a significant player in shaping India's historical narrative, leaving an enduring mark on its trajectory. This imprint stems from the courageous and patriotic endeavours of the people of Punjab, who have etched out a distinctive place for themselves. A comprehensive study of its people becomes imperative to comprehend the nuanced dynamics of Punjab's history. This involves delving into their historical, cultural, and religious roots and understanding their political legacy. The year 1947 marked India's liberation from British rule, coinciding with a partition based on the two-nation theory. Punjab bore a heavy toll during this partition, experiencing substantial human and territorial losses. The partition's catastrophic aftermath overshadowed the jubilation of independence for Punjab. Post-partition, Punjab portrayed a sombre and bleak landscape, with the migration of refugees significantly altering the communal composition of the region. This migration upheaved the administrative, economic, and political structures, introducing many complex challenges. The division of Punjab along communal lines generated a palpable sense of indignation and frustration among the Sikh community. The expectations of establishing a Sikh State in independent India, fervently supported by Sikh, Congress, and Hindu leaders, remained unfulfilled. Perceiving an unequal distribution of territory between Hindus and Muslims, the Sikhs advocated for a Punjabi Suba. In their pursuit of this objective, the Akali Dal employed diverse strategies. This culminated in the reorganisation of Punjab on March 21, 1966, leading to its further trifurcation."  
Perceived Benefits of Learning Analytics and Artificial Intelligence-Based Oniline Learning Platforms: Case of Lithuanian General Education Schools
Get PDFOnline learning platforms with integrated tools of learning analytics (LA) and artificial intelligence (AI) are growing in popularity in general education in Lithuania. Such platforms have a number of advantages in terms of the teaching-learning process, however, there is a lack of research about such advantages after direct use of the platforms in general education schools. Thus, the purpose of the current study is to find out the perceived benefits of online learning platforms with LA and AI tools. The research was conducted in 11 schools in Lithuania. The students at these schools tested the LearnLab and Eduten Playground online learning platforms for almost three months. Descriptive statistics methods and chi-square (χ2) criteria were applied. Results showed that students claim that their learning achievements have improved thanks to the platforms. Moreover, research results showed, that when working with platforms, it is appropriate to pay attention and, in parallel, to teach students computer literacy from the elementary grades, to develop a relationship with the computer as a work tool. It is also appropriate to start working with LA and AI platforms from the primary grades, which would positively stimulate the growth of digital competence, as well as the interest of students in the educational subject(s) and the positive growth of learning achievements
Effect of Parent’s International Migration on the Educational Performances of Left-Behind Children in Morocco
Get PDFThis paper focuses on examining the effects of parent’s international migration on the educational outcomes of left-behind children. This, however, is with special emphasis on how family environment and school characteristics affects the educational achievements of left-behind children. A sample was selected from the survey conducted in Fkih Ben Salah, a small town in Morocco, within the Béni Mellal-Khénifra region. This survey, administered in 2020, included 407 children from 16 primary schools. The results of the propensity score matching method showed that the international migration of parents had a significant effect on the school performance of their left-behind children. Furthermore, the Oaxaca-Blinder decomposition analysis showed that 36.34% of the differences in the children’s school performance during the first semester of the year 2020 can be explained by factors such as student–teacher ratio, class size, and socio-economic index of class, accounting for 12.82%, 38.47%, and 31.35%, respectively. The empirical findings also revealed that left-behind children are at risk of social exclusion, especially in public schools. Targeted interventions should be adopted to improve the educational outcomes of left-behind children. In addition, these interventions should assist immigrant parents in facilitating their children’s first journey and enhancing the student-teacher ratio
Gestion de la Motivation des Enseignants par les Directeurs des Ecoles : Synthèse Théorique et Orientations Prospectives
Get PDFCet article a pour objectif d’aider les chefs d’équites en général et les directeurs d’écoles en particulier à mieux gérer et motiver les ressources humaines sous leur direction. Il consiste en une synthèse de la littérature autour de la motivation au travail regroupant la plupart des théories liées à ce domaine en y ajoutant des analyses et des propositions concrètes afin de lier théorie et pratique.
Ce travail est venu à la suite d’une évaluation diagnostique au cours de la formation des cadres de l’administration pédagogique. Les résultats ont montré une déficience accrue aux savoirs et savoir-faire des stagiaires autour de la notion de motivation, pourtant très importante dans leur travail. 57% seulement connaissent des théories de la motivation et aucune proposition d’intervention ne lie théorie et pratique. Toutefois, l’unanimité avoue le rôle important du directeur dans la motivation des enseignants.
This article aims to assist team leaders in general and school principals in particular in better managing and motivating the human resources under their direction. It consists of a literature review on workplace motivation, encompassing most theories related to this field, supplemented with analyses and concrete proposals to bridge the gap between theory and practice.
This work follows a diagnostic evaluation conducted during the training of educational administration executives. The results revealed an increased deficiency in the knowledge and skills of trainees regarding the concept of motivation, which is crucial in their work. Only 57% are familiar with motivation theories, and no intervention proposal links theory and practice. However, there is unanimous agreement on the crucial role of the principal in teacher motivation
Harmonizing Aesthetics and Psychological Well-being: An Indepth Exploration of the Integrative Impact of Dysport in Cosmetic Procedures
Get PDFThis research delves into the intricate interplay between aesthetic intelligence, aesthetic sensitivity, and psychological well-being within the framework of positive psychology, with a particular emphasis on the integrative impact of Dysport in cosmetic procedures. By recognizing the significant influence of environmental aesthetics on individual health and well-being, this study seeks to illuminate the relationship between aesthetic intelligence and psychological well-being while considering the role of Dysport in cosmetic procedures. Employing a correlational research design, structural equation modeling was utilized as the methodological approach. The research cohort comprised all students enrolled at Bu-Ali Sina University during the academic year 2018-2019. Employing cluster sampling, 384 students were selected based on the recommended sample size for structural equation modeling. The instruments included the Ryff Well-being Scale, the Aesthetic Intelligence Scale developed by Rashid et al., and Abdulsalami's Aesthetic Sensitivity Scale. Findings revealed significant direct impacts of both aesthetic intelligence and aesthetic sensitivity on psychological well-being. Moreover, aesthetic intelligence demonstrated a direct and significant effect on aesthetic sensitivity. Exploration of indirect relationships indicated that aesthetic intelligence, mediated by aesthetic sensitivity, significantly influenced psychological well-being. These findings underscore the importance of individuals' awareness and appreciation of environmental beauty, including the role of Dysport in cosmetic procedures, in positively contributing to psychological well-being
Vermicomposting of Sludge from the Camp SIC Cité-Verte Wastewater Treatment Plant (Yaounde-Cameroon)
Get PDFIn Yaounde, as in most sub-Sahara African cities, wastewater management is a major concern. Through its national sanitation strategy, Cameroonian government takes many initiatives to improve the urban sanitation situation by constructing social housing, where wastewater treatment plants are integrated. However, their purification performance is often low and the by-products represent great risk factors. This paper focuses on preserving the health of the population, reducing environmental pollution, and improving soil fertility by vermicomposting sludge from the Yaounde Camp SIC Cité-Verte wastewater treatment plant. The methodological approach consisted of the characterisation of sludge, followed by the vermicomposting test. At the end of the 35-day process, the produced vermicompost was characterized, and its agronomic efficiency was tested on waterleaf (Talinum triangulare) cultivation. The Yaounde Camp SIC Cité-Verte wastewater treatment plant consistently produces an average of 239 Kg of sludge per day. The sludge is primarily composed of high carbonaceous material (53%) and contains essential nutrients for plant growth (NPK: 13%), along with pathogenic microorganisms and heavy metals in low concentrations. The characterisation of the vermicomposts obtained after 35 days showed a conservation of nutrients (NPK) concentration and a decrease in carbonaceous matter and heavy metals. Moreover, there was a complete absence of fecal pathogens in the vermicompost of the two setups. The agronomic efficiency of the vermicomposts on waterleaf was shown by a high germination rate (100 % for vermicomposts), a high number of leaves (28 ± 15), a deep green coloration of plants, a great plant length (17.3 ± 4.6 cm), and a large stem diameter (2.1 ± 0.4 cm). The NPK content (˃7%) indicates that the vermicompost produced can be used as an agricultural organic fertilizer
Etude Analgésique des Extraits Hydroéthanoliques de Clerodendrum splendens G. Don (Lamiaceae) et Nephrolepis bisserata (Sw.) Schott (Nephrolepidaceae) : Deux Plantes de la Pharmacopée Ivoirienne
Get PDFLa présente étude avait pour objectif général d’évaluer l’activité analgésique des extraits hydroéthanolique de Clerodendrum splendens et Nephrolepsis bisserata. Cette étude s’est faite en utilisant le Writhing test induit par l’acide acétique 1% par voie intrapéritonéale et le test d’immersion de la queue chez la souris. Le paracétamol, à la dose de 100 mg/kg de poids corps corporelle (pc) et l’extrait hydroéthanolique ont été administrés par voie orale. La morphine à la dose de 10 mg/kg de pc a été administrée par voie intrapéritonéale. Les résultats ont montré que les extraits de Clerodendrum splendens et Nephrolepsis bisserata administrés aux doses de 50, 100 et 200 mg/kg de pc chacun présentaient des pourcentages d’inhibition respectivement de 56,44 ; 61,28 ; 98,39 pour Clerodendrum splendens et 98,39, 87,10 ; 95,16 pour Nephrolepsis bisserata. Par contre, le paracétamol a donné un pourcentage d’inhibition de 91, 93. Aux temps T30, la morphine a fortement prolongé le retrait de la queue des souris avec une moyenne de 8,6±0,2 s contre 3,6±0,2 s, 4,4±0,5 s et 5,6±0,2 s pour la solution de (Clerodendrum splendens + Nephrolepsis bisserata) respectivement aux doses de 5 mg/ml, 10 mg/ml et 15 mg/ml. Cependant à la 150éme minute, notre extrait a fortement prolongé les temps de retrait de la queue des souris avec des moyennes de 8±0,4, 10,6±0,5 et 12,2±0,4 s (respectivement aux doses de 5 mg/ml, 10 mg/ml et 15 mg/ml) par rapport à celui de la morphine (6,2±0,2 s). L’effet analgésique de Clerodendrum splendens et Nephrolepsis bisserata justifierait l’utilisation de ces deux espèces de plantes par les populations pour soulager la douleur.
The general aim of the present study was to evaluate the analgesic activity of hydroethanol extracts of Clerodendrum splendens and Nephrolepsis bisserata. This evaluation was carried out using the Writhing test induced by 1% acetic acid intraperitoneally and the tail immersion test in mice. Paracetamol at a dose of 100 mg/Kg body weight (bw) and hydroethanol extract were administered orally. Morphine at a dose of 10 mg/kg bw was administered intraperitoneally. The results showed that extracts of Clerodendrum splendens and Nephrolepsis bisserata administered at doses of 50, 100 and 200 mg/Kg bw each presented inhibition percentages of 56.44; 61.28; 98.39, 98.39, 87.10; 95.16 respectively versus 91, 93 for paracetamol. At times T30, morphine greatly prolonged tail withdrawal in mice, with an average of 8.6±0.2 s versus 3.6±0.2 s, 4.4±0.5 s and 5.6±0.2 s for our (NB+CS) solution at doses of 5mg/ml, 10mg/ml and 15mg/ml respectively. However, at the 150th minute, our extract greatly prolonged the tail withdrawal times of the mice, with averages of 8±0.4, 10.6±0.5 and 12.2±0.4 s (at doses of 5mg/ml, 10mg/ml and 15mg/ml respectively) compared with morphine (6.2±0.2 s). The analgesic effect of Clerodendrum splendens and Nephrolepsis bisserata justifies their use by local populations to relieve pain
Characterization of Mycosporine-Like Amino Acids in Chlorophyll f Producing Cyanobacteria from Shaded Niches
Get PDFCyanobacteria are the oldest photoautotrophic prokaryotes that can perform plant-like oxygenic photosynthesis. The obligate requirement of sunlight for photosynthesis inevitably exposes cyanobacteria to UV radiation. Mycosporine-like amino acids (MAAs) played necessary roles in protecting cyanobacteria from UV radiation and were frequently reported in cyanobacteria exposed to high light radiation. Here, the MAA production was tried in the chlorophyll f-producing cyanobacterial strains isolated from the shaded environments. Four Chroococcidiopsis strains were finally induced to produce MAAs under 0.15 W·m-2 of UV-B exposure, and the MAA contents increased along with the prolonged UV-B treatments in these four Chroococcidiopsis strains. After separation by HPLC system, one MAA type was detected at the similar retention times in the methanol extracts of Chroococcidiopsis strains, and all the MAA compounds showed in-line absorption at 310 nm and mass spectra 246 m/z. The absorption spectra and mass spectra matched well the characteristics of the simplest MAA mycosporine-glycine. Chroococcidiopsis had the simplest MAA gene clusters for mycosporine-glycine. MAAs could also be produced in the cyanobacteria even distributed in the light-deficient niches. These results suggested other roles of MAAs in addition to UV-B protection in the special cyanobacteria from shaded environments