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2022 ◽  
Vol 15 (1) ◽  
pp. 1-19
Author(s):  
Angeliki Antoniou ◽  
Maria Vayanou ◽  
Akrivi Katifori ◽  
Angeliki Chrysanthi ◽  
Filippia Cheilitsi ◽  
...  

Extensive research on mobile guides for museums has explored the potential of technology to offer some of the services that have been traditionally provided by human guides, including guiding visitors in the museum space, providing information about the exhibits, and using more advanced interpretative approaches such as digital storytelling and gamified techniques. However, the majority of these approaches either ignores or tries to substitute entirely the role of the human guide. In this work, we present a user study with 10 experienced tour guides, currently working in the museum of modern art of the Basil & Elise Goulandris Foundation. Based on a three-phase procedure, the study is designed to empower professionals into envisaging their work in symbiosis with current technological developments. First, we attempt to identify existing challenges guides face and to capture their tacit knowledge in addressing emerging problems in guided tours. In the second and third stage, through a reflective and productive discussion, we employ a set of contemporary innovative digital applications as a starting point to elicit their views on their role in an envisaged symbiotic future of human-led hybrid digital experiences.


Author(s):  
Paulo Roberto Barros Gomes ◽  
◽  
Silvio Carvalho Marinho ◽  
Gustavo Oliveira Everton ◽  
Eduardo Fonseca Silva ◽  
...  

In this study, we investigated the main constituent, the predominant class and biological activity of the essential oil extracted from the leaves of Pimenta dioica and the pattern of the major constituent against larvae in the third stage of Aedes aegypti. For this reason, we extracted the oil by hydrodistillation, identified its components by gas chromatography coupled with mass spectrometry (GC/MS) and calculated the lethal concentration (LC50) of the larvicidal activity using the Reed-Muench method. The results show that the oil consists mainly of eugenol, in which the phenylpropanoid class predominated and the lethal concentration, LC50, was 38.86 μg mL-1at a confidence level of 2.25 μg mL-1, while the eugenol standard presented LC5079.75 μg mL-1at a confidence level of 2.10 μg mL-1. Given the facts, we conclude that the oil is more active than the standard and that it has the potential to replace chemical larvicides.


Author(s):  
Saravanan Kalaivanan ◽  
◽  
Stebin Sebastian ◽  
Tadepalli Balaji Sai Swapnil ◽  
Nikhil Ch ◽  
...  

As India is still a developing country, it has a lot of rural areas wherein the living conditions and standards are below world standards and may even be on the underdeveloped scale of living standards. In order to achieve development in these regions the first and foremost step to initiate is to improve the agriculture standards and methodologies and bring in new technology to improve the methods used in agriculture which is the major source of income to these people. This project is a four staged project which intends on improving the agriculture standards of India. The first stage of the project is an automated humidity and moisture control for the soil, this will help the farmers in automating certain aspects and hence eliminate certain human errors and improve yield. The second stage of the project is an agriculture auction portal wherein the farmers can directly auction their products to the wholesaler without the need of a middle man/broker. The third stage of the project is an android app which conducts various surveys and suggests a new farmer the type of farming/seeds to be planted / soil information and other such relevant data in respect to agriculture which would help increase the yield for a new farmer. The last part of the project is a seed cum financial bank which helps the farmers by providing financial as well as seed aid in times of financial crisis.


2022 ◽  
Vol 8 (1) ◽  
pp. 271-280
Author(s):  
A. Turukbaeva ◽  
N. Gilyauzizova

In this article, the author reveals research methods for working with underperforming students. We conducted an electronic survey (in connection with the pandemic) of students in urban schools and their parents, and each question was analyzed. As diagnostic methods for studying the state and causes of academic failure in modern schoolchildren, the author used various methods: the method of theoretical analysis of scientific, pedagogical, psychological, managerial and methodological literature on the research problem, the method of empirical research, the diagnostic method, the method of pedagogical experiment (ascertaining, forming, control and their description). The study of the reasons for academic failure was carried out in three stages, which differed both substantively and procedurally. The first stage was devoted to a questionnaire survey of students and parents of students in order to identify their interest and participation in general in the upbringing and academic performance of the child. At the second stage, the students' color world analyzer was used. And the final, third stage, contains the application of tests of school anxiety to diagnose the socio-psychological climate. The purpose of the methodology is to identify the level of anxiety in adolescents, localized in three main planes: educational activity, relationships with peers and significance in the eyes of adults and self-image. After all, adolescence is still an insufficiently mature and insufficiently socially matured person; it is a person who is at a special stage in the formation of its most important features and qualities. This stage is the borderline between childhood and adulthood.


2022 ◽  
Author(s):  
Mohammed El Hadi Attia ◽  
Fadl Abdelmonem Essa ◽  
Mohamed Abdelgaied ◽  
Abd elnaby Kabeel

Abstract Numerous studies are being conducted on solar desalination systems with creating new designs to improve the efficiency and yield of these systems. Hemispherical solar still has a relatively large throughput because of its large exposure and evaporation surface areas compared to the other distiller designs. To get the optimal conditions of the parameters that provide the highest productivity of the hemispherical still, three hemispherical basin stills were fabricated and tested. The experiments were performed in three stages: In the first one, the traditional hemispherical solar still THSS (a reference distiller) was compared by THSS with internal reflective mirrors (THSS-IRM). In the second stage, the effect of using different basin metals (THSS with basin metal of zinc (THSS-IRMZ) and basin metal of copper (THSS-IRMC)) with internal reflective mirrors was studied. In the third stage, the two distillers were investigated under using energy storage medium (30 g/L sand grains for each). The THSS with internal reflective mirrors, basin metal of zinc, and energy storage medium is abbreviated by THSS-IRMZSG. Also, THSS with internal reflective mirrors, basin metal of copper, and energy storage medium is abbreviated by THSS-IRMCSG. Moreover, THSS with internal reflective mirrors and energy storage medium is abbreviated by THSS-IRMSG. The results showed that the combination of using internal reflective mirrors, basin material (copper) and energy storage medium provided the best improvement of hemispherical distillation device. The maximum cumulative yield of THSS-IRMCSG was 11.9 L/m².day, while the reference distillation device gave a total yield of 4.65 L/m².day. So, the productivity was improved by around 156%.


Metals ◽  
2022 ◽  
Vol 12 (1) ◽  
pp. 138
Author(s):  
Dmitriy S. Fatyukhin ◽  
Ravil I. Nigmetzyanov ◽  
Vyacheslav M. Prikhodko ◽  
Aleksandr V. Sukhov ◽  
Sergey K. Sundukov

The ultrasonic treatment of metal products in liquid is used mainly to remove various kinds of contaminants from surfaces. The effects of ultrasound not only separate and remove contaminants, they also significantly impact the physical–mechanical and geometric properties of the surfaces of products if there is enough time for treatment. The aim of this study was to compare the dynamics of ultrasonic cavitation effects on the surface properties of 45 (ASTM M1044; DIN C45; GB 45) and 40Kh (AISI 5140; DIN 41Cr4; GB 40Cr) structural steels. During the study, changes in the structure, roughness, sub-roughness, and microhardness values of these materials were observed. The results showed significant changes in the considered characteristics. It was found that the process of cavitation erosion involves at least 3 stages. In the first stage, the geometric properties of the surface slightly change with the accumulation of internal stresses and an increase in microhardness. The second stage is characterized by structure refinement, increased roughness and sub-microroughness, and the development of surface erosion. In the third stage, when a certain limiting state is reached, there are no noticeable changes in the surface properties. The lengths of these stages and the quantitative characteristics of erosion for the considered materials differ significantly. It was found that the time required to reach the limiting state was longer for carbon steel than for alloy steel. The results can be used to improve the cleaning process, as well as to form the required surface properties of structural steels.


Author(s):  
Dinesh Kumar Sharma ◽  
Kumaresan Gururaj ◽  
Gopal Dass ◽  
Nitika Sharma ◽  
Anil Kumar Mishra ◽  
...  

Background: Gastrointestinal (GI) parasitism in goats is a serious and widely distributed problem. Diarrhoea, moderate or severe, though a result of various factors involving feed, fodder, seasons and state of gut physiology of digestion, is a common symptom in goats infested with GI parasites, the nematodes and coccidia. Intensity of diarrhoea corresponds to quantum and type of parasitism. Methods: In the present study, 1451 faecal samples collected from goats of different ages ( less than 3 M, greater than 3-6 M, greater than 6-12 M and greater than 12 M) were categorized as normal, lumpy and diarrheic based on their consistency and were processed for parasitic infections. The GI parasitic load was quantified by faecal eggs/oocysts counting (FEC and FOC) per gram of faeces through the modified Mac-master technique. Identification of parasites was based on the morphology of third-stage larvae procured by coproculture of randomly selected positive samples. FEC/FOC data (strongyle and coccidian), being skewed and uneven, were log-transformed to normalize. The transformed data [loge (100+n)] was analyzed statistically and results were interpreted. Result: Means of FEC and FOC in three type of faecal samples viz. normal, lumpy and diarrheic, were significantly different. Similarly, the effect of age on FEC and FOC was significant. The interaction between animals age × faecal sample type was significant in coccidian and non-significant in strongyle infection. The results were discussed to support the hypothesis that faecal consistency was a measure of coccidian and strongyle worm load in goats and can be a basis of targeted selective treatment.


2022 ◽  
Vol 4 (2) ◽  
pp. 910-915
Author(s):  
Elis Roslianti ◽  
Yanti Srinayanti ◽  
Rosmiati Rosmiati

In general, family planning can be defined as an effort to regulate the number of pregnancies in such a way that it will have a positive impact on the mother, baby, father and family concerned and will not cause harm as a direct result of the pregnancy. Family planning is an attempt to regulate the population or the use of methods to regulate fertilization to help a person or family achieve certain goals. The purpose referred to here is an intentional arrangement of pregnancy by the family, which is not against the applicable laws or regulations and also the morals of Pancasila and for the welfare of the family. Giving understanding to couples of childbearing age that there are various kinds of contraceptives and their benefits, so that people can choose any contraceptive that suits the individual. With more benefits than side effects, especially to keep the pregnancy distance, and a prosperous family can be achieved. It is hoped that with careful family planning, pregnancy is something that is really expected so that it will avoid the act of terminating a pregnancy with abortion. Ciamis Regency is in the province of West Java, where the area is directly adjacent to two regencies, namely Banjar and Tasikmalaya. Its location in the center of the city makes the Benteng village not like a village in general.


SinkrOn ◽  
2022 ◽  
Vol 7 (1) ◽  
pp. 9-16
Author(s):  
Ramadhian Agus Triono Sudalyo ◽  
Bayu Mukti

The impact of the Covid-19 pandemic has forced the economic activity of the Indonesian population to decline drastically, which has an impact on the education funding process. Given these problems, it is necessary to develop a Decision-Making System to assist the selection process for KIP admissions for students who meet the requirements. The purpose of this research is that the provision of KIP can be right on target. For decision making, three stages are used with the method used, the first stage is the C-45 method for student priority decision making, the second stage is the Fuzzy MADM method, and the third stage is ranking according to the total quota. which is determined. The initial selection used the C-45 method with the variables of GPA, parents' income, achievements, parental dependents, and cases. The results of the C4.5 calculation show that the first priority is parental dependents with a Gain value of 0.007822696, followed by a GPA with a Gain value of -0.130011482, the third priority is Parents' Income with a Gain value of -0.702657067 and the last priority is an achievement. The results of the calculation are continued with Fuzzy MADM resulting in 5 rules used to determine student priorities (can) or not. The results achieved from 140 students who applied were accepted by 135 students who passed the initial stage, and out of 135 rankings, 70 students were determined to receive scholarships from the Government with the highest calculation score of 21 and the lowest of 14.4.


2022 ◽  
Vol 42 ◽  
pp. 01018
Author(s):  
Olga Krotova ◽  
Sergey Chelbin ◽  
Maria Krotova ◽  
Olga Sangadzhieva ◽  
Kermen Khalgaeva

The essence of the method of operation of the aquaponic system is to use the vital waste of aquatic animals as food for plants. At the first stage, the fish produces waste products. Then, in the second stage, microbes and worms convert the waste into fertilizers for plants. During the process, at the third stage, plants consume the necessary products of excretion of living organisms. Aquaponics is an artificial ecosystem in which three types of living organisms are key: aquatic animals (usually fish or shrimp), plants and bacteria. This technology works on the principle of an ecosystem of fish and plants: fish provides food to plants, and plants purify water and are environmentally friendly. The essence of this method is to use the vital waste of aquatic animals (fish, shrimp) as a nutrient medium for plants. These are chemicals such as nitrogenous, potassium, phosphorus compounds, carbon dioxide. Thanks to aquaponic farms, the costs of water and other natural resources, soil pollution and the use of insecticides are already being reduced in different places of our planet. Such systems are a sustainable ecosystem capable of producing organic matter that does not contain toxic substances often present in vegetables grown by traditional methods.


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