scholarly journals Practical aspects of colour science in the educational process. Using a limited palette

Author(s):  
Y. Piskunov

The paper presents the practical aspects of colour science in the context of the interaction of colours and obtaining certain shades. As a practical teaching methodology, the use of a limited palette of three primary colours in several modifications has been offered. The given individual author's observations and conclusions formed in the process of teaching painting in the higher art school. The paper presents some of the author's observations and conclusions emerged in the process of teaching painting in a higher art school. A practical problem is the shallow knowledge of the physical features of colour, the standardization of the educational palette, the absence of an individual artist's palette. To avoid those problems, the students were asked to use a limited palette instead of the standard one. It is based on three primary colours in different versions. For each task, two options of a basic paints set were offered with the condition that other ready-mixed paints would not be used. The painting task prompted the creation of a wide scale of cold and warm colour tones. Relying on the colour theory, the students had to create their own palette of complementary colours (purple, orange, green), as well as their shades. In the course of work, it turned out that the very fact of the finished palette absence was the most difficult for the students. The first attempts to mix the main colours took a lot of time, but at this stage they began to be more attentive to the properties of paints, to notice the difference in shades, to vary the saturation of colour. Almost all the students have achieved the effect of a wide range of ochre and brown colours and have created a fairly wide palette. The resulting colours have turned out to be easy to reproduce and convenient to use. The results of the work prove that practical tasks with a limited palette use are informative and useful in teaching painting. An empirical research of the interaction of pigments will help students to learn and successfully embody their own painting intentions.

2016 ◽  
Vol 18 (3(71)) ◽  
pp. 75-78
Author(s):  
Zh. Rybachuk

In the articles resulted the uses of preparation given inrelation to expediency are with adsorbent properties of «Еcosorb 25» for pigs that are on fattening. Undertakenstudies it is well–proven that introduction in the complementof ration of the indicated adsorbent from a calculation 5 kg/1the ton of forage is predetermined by an increase in the serum of blood of content of immunoproteins. Content ofimmunoproteins is in the serum of blood of pigs, that it isexposed to research to application of adsorbent was differentand was in a wide range, a mean value was 15.9 ± 3.2 gs/l immune status of investigational population is different Accordingly. Consider that such wide range of data testifiesto different activity of functioning of the immune system andconditioned by the different antigen loading each ofinvestigationalanimals. In a 21 twenty–four hours, after thebeginning of application of adsorbent of «Еcosorb 25» content of immunoproteins in the serum of blood of pigs of anexperience group is considerably less in comparing to theanimals that in composition a ration got «Ecosorb 25». Forthese pigs (control group) content of immunoproteins was at the level of a 16.6 ± 1.27g/l, but substantially differed for every animal, that testifiedtheir immune status to different. For the pigs of an experiencegroup a difference is between the least and maximal index ofcontent of immunoproteins presented 17.8% that specified onalmost identical reactivity of the immune system (reduction ofreceipt of antigens, maybe and mycotoxins from agastrointestinal tract). Got the given is conditioned by thedisplay of adsorbent action of preparation that is entered to the ration of pigs of an experience group. Positive influence of «Ecosorb 25» on functioning of the immune system atintroduction to the ration of pigs that are on fattening, theresults of research of serum of blood testify through 2 missesafter the beginning of application. Reduction to content of immunoproteins is registered in theserum of blood of pigs of control group on 15.7% comparing to the previous index (21twenty–four hours) and 19.5% animals of an experience group. For certain (Р ≥ 0,99) contentof immunoproteins increased in the serum of blood of pigs ofan experience group 17 ± 0.25 gs/of to 14.0 ± 0.76 g/l that maybe it contingently the receipt of substances with animmunodepressive action (including and micotoxins) in the organism of animals of control group. Id est, at feeding to the pigs of preparation of «Ecosorb 25» with adsorbent properties during 2th months, stipulated reduction of receiptof toxins in blood, and accordingly and reduction offunctional activity immune. It provides rapid reactivity of the immune system andsynthesis of sufficient amount of antibodies at the hit ofmicroorganisms to the organism of pigs, that in compositiona ration got an adsorbent. As for the animals of control group registered reduction to content of immunoproteins in theserum of blood, it testifies to weakening of functional activityof the immune system. The difference of content ofimmunoproteins in the serum of blood of pigs testifies to the increase of providing of better immunological defence in the organism of animals of anexperience group and reduction of him in a control group. 


2019 ◽  
Vol 13 (3) ◽  
pp. 89-99 ◽  
Author(s):  
D. V. Kuzin

The worldwide process of digital transformation (DT) in the economy, which is currently affecting almost all spheres of contemporary business is somewhat controversial. On the one hand, according to the estimates of International Data Corporation (IDC), by the end of 2019 DT spending will reach $ 1.7 trillion globally and by 2021 more than half of world GDP will be related to digitalisation. On the other hand, while most business leaders acknowledge DT as crucial, just about half of them have some understanding of DT and its implementation. Even in developed countries, the real quality shifts are visible just over the last 2–3 years, and the companies are at different stages of “digital maturity”. That’s why this issue attracts more and more attention of researchers, experts and business people, especially in terms of not just technology implementation but preferably in terms of organisation and management. The purpose of this paper is to reveal these managerial issues and problems with particular focus on 3 points: first — on the attitude of business to DT and digital maturity; second — on key management issues facing business; third — on further research options and perspectives. The paper is based on the significant outcomes of several wide-scale types of research done in the USA and Russia over the last 2–3 years, which can reveal major management problems and challenges. Since currently at this stage of DT development, the research of this topic is at the beginning and just over the last several years the relatively big empirical data and best practices have been collected and analysed further in-depth research of operational, organisational, behavioural, strategic and social issues of DT is necessary. Besides its practical business side, it will allow better and more sophisticated understanding of the new 21st -century management paradigm as well as the inclusion of the findings and practices into the educational process.


2021 ◽  
Vol 48 (3) ◽  
pp. 297-309
Author(s):  
Marzanna Karolczuk ◽  

The results of research on proverbs and sayings in such areas as linguistics, psychology, didactics and teaching methodology show that paremia has cognitive, educational and pedagogical functions in almost all areas of science and life. Understanding proverbs and sayings contributes to a better understanding of other cultures in the context of their interaction. Introduction proverbs and sayings to educational process develops students’ intercultural skills and a positive attitude to other people, as well as constitutes creative atmosphere in the classroom. The use of paremia in the learning process also enables the development of language knowledge and abilities, as well as speaking skills. The purpose of the article is to discuss the use of paremia in language education and propose kinds and types of exercises that can be used in the process of teaching a foreign language.


2019 ◽  
Vol 50 (4) ◽  
pp. 693-702 ◽  
Author(s):  
Christine Holyfield ◽  
Sydney Brooks ◽  
Allison Schluterman

Purpose Augmentative and alternative communication (AAC) is an intervention approach that can promote communication and language in children with multiple disabilities who are beginning communicators. While a wide range of AAC technologies are available, little is known about the comparative effects of specific technology options. Given that engagement can be low for beginning communicators with multiple disabilities, the current study provides initial information about the comparative effects of 2 AAC technology options—high-tech visual scene displays (VSDs) and low-tech isolated picture symbols—on engagement. Method Three elementary-age beginning communicators with multiple disabilities participated. The study used a single-subject, alternating treatment design with each technology serving as a condition. Participants interacted with their school speech-language pathologists using each of the 2 technologies across 5 sessions in a block randomized order. Results According to visual analysis and nonoverlap of all pairs calculations, all 3 participants demonstrated more engagement with the high-tech VSDs than the low-tech isolated picture symbols as measured by their seconds of gaze toward each technology option. Despite the difference in engagement observed, there was no clear difference across the 2 conditions in engagement toward the communication partner or use of the AAC. Conclusions Clinicians can consider measuring engagement when evaluating AAC technology options for children with multiple disabilities and should consider evaluating high-tech VSDs as 1 technology option for them. Future research must explore the extent to which differences in engagement to particular AAC technologies result in differences in communication and language learning over time as might be expected.


Author(s):  
I. V. Kharlamenko ◽  
V. V. Vonog

The article is devoted to control and feedback in foreign language teaching in a technogenic environment. The educational process is transformed in terms of the implementation and active use of digital technologies. ICT-rich environment provides new models of interaction between the teacher, students and digital tools. It also enriches the diversity of tasks and expands the range of possible forms of control and feedback. According to the authors, automated evaluation takes place both in out-of-classroom activities and directly in the classroom using Bring Your Own Device technology (BYOD). Automated control contributes to the intensity of the educational process. It provides all the participants with an opportunity to choose a convenient mode of work and get instant feedback, thereby allowing self-assessment and self-reflection of their own actions. When teaching foreign languages, special attention should be paid to chatbot technology. Chatbots imitate human actions and are able to perform standard repetitive tasks. The growing popularity of bots is explained by a wide range of usage spheres and the ability to integrate chatbots into social networks and mobile technologies. In the technogenic educational environment, ICT can be the basis for interaction, co-editing and peer assessment in collaborative projects. In this case, students receive feedback not only from the teacher, but also from other students, which increases the motivation for independent learning. Thus, automated control, self-assessment and peer assessment can both identify problem areas for each student and design an individual learning path, which increases the effectiveness of learning a foreign language.


Author(s):  
Nazom Murio ◽  
Roseli Theis

Geometri adalah bagian matematika yang sangat dekat dari siswa, karena hampir semua objek visual yang ada di sekitar siswa adalah objek geometri, tetapi tidak semua siswa menyukai pembelajaran yang menyertakan gambar, sehingga memungkinkan siswa mengalami kesulitan dalam belajar geometri. Tujuan dari penelitian ini adalah untuk menggambarkan kesulitan belajar siswa berdasarkan karakteristik Lerner dalam menyelesaikan pertanyaan geometri. Jenis penelitian ini adalah penelitian deskriptif kualitatif. Subjek penelitian adalah siswa dengan kepribadian wali yang mengalami kesulitan belajar di kelas IX A SMP N 30 Muaro Jambi. Instrumen yang digunakan dalam penelitian ini adalah penulis sendiri, lembar tes klasifikasi kepribadian, lembar tes kesulitan belajar, dan pedoman wawancara. Hasil penelitian menunjukkan siswa dengan kepribadian wali yang mengalami kesulitan belajar, 100% mengalami kelainan persepsi visual, di mana siswa mengalami kesulitan dalam menentukan seperti apa bangun datar pada masalah tersebut. 60% mengalami kesulitan mengenali dan memahami simbol, di mana siswa melihat simbol "//" sebagai simbol untuk kesesuaian. Serta 40% mengalami kesulitan dalam bahasa dan membaca, di mana siswa kesulitan dalam memahami pertanyaan yang diberikan.   Geometry is a very close mathematical part of the student, because almost all visual objects that exist around the students are objects of geometry, but not all students like learning that includes images, thus allowing students to have difficulty in learning geometry. The purpose of this research is to describe students' learning difficulties based on Lerner's characteristic in solving the geometry question. This type of research is descriptive qualitative research. Research subjects were students with guardian personality who had difficulty studying in class IX A SMP N 30 Muaro Jambi. Instruments used in this study are the authors themselves, personality classification test sheets, learning difficulties test sheets, and interview guidelines. The results showed students with guardian personality who experienced learning difficulties, 100% experienced visual perception abnormalities, where students have difficulty in determining what kind of flat wake on the matter. 60% have difficulty recognizing and understanding symbols, where students see the symbol "//" as a symbol for conformity. As well as 40% have difficulty in language and reading, where students difficulty in understanding the given question.


2020 ◽  
Vol 7 (2) ◽  
pp. 34-41
Author(s):  
VLADIMIR NIKONOV ◽  
◽  
ANTON ZOBOV ◽  

The construction and selection of a suitable bijective function, that is, substitution, is now becoming an important applied task, particularly for building block encryption systems. Many articles have suggested using different approaches to determining the quality of substitution, but most of them are highly computationally complex. The solution of this problem will significantly expand the range of methods for constructing and analyzing scheme in information protection systems. The purpose of research is to find easily measurable characteristics of substitutions, allowing to evaluate their quality, and also measures of the proximity of a particular substitutions to a random one, or its distance from it. For this purpose, several characteristics were proposed in this work: difference and polynomial, and their mathematical expectation was found, as well as variance for the difference characteristic. This allows us to make a conclusion about its quality by comparing the result of calculating the characteristic for a particular substitution with the calculated mathematical expectation. From a computational point of view, the thesises of the article are of exceptional interest due to the simplicity of the algorithm for quantifying the quality of bijective function substitutions. By its nature, the operation of calculating the difference characteristic carries out a simple summation of integer terms in a fixed and small range. Such an operation, both in the modern and in the prospective element base, is embedded in the logic of a wide range of functional elements, especially when implementing computational actions in the optical range, or on other carriers related to the field of nanotechnology.


2019 ◽  
Author(s):  
Le Wang ◽  
Devon Jakob ◽  
Haomin Wang ◽  
Alexis Apostolos ◽  
Marcos M. Pires ◽  
...  

<div>Infrared chemical microscopy through mechanical probing of light-matter interactions by atomic force microscopy (AFM) bypasses the diffraction limit. One increasingly popular technique is photo-induced force microscopy (PiFM), which utilizes the mechanical heterodyne signal detection between cantilever mechanical resonant oscillations and the photo induced force from light-matter interaction. So far, photo induced force microscopy has been operated in only one heterodyne configuration. In this article, we generalize heterodyne configurations of photoinduced force microscopy by introducing two new schemes: harmonic heterodyne detection and sequential heterodyne detection. In harmonic heterodyne detection, the laser repetition rate matches integer fractions of the difference between the two mechanical resonant modes of the AFM cantilever. The high harmonic of the beating from the photothermal expansion mixes with the AFM cantilever oscillation to provide PiFM signal. In sequential heterodyne detection, the combination of the repetition rate of laser pulses and polarization modulation frequency matches the difference between two AFM mechanical modes, leading to detectable PiFM signals. These two generalized heterodyne configurations for photo induced force microscopy deliver new avenues for chemical imaging and broadband spectroscopy at ~10 nm spatial resolution. They are suitable for a wide range of heterogeneous materials across various disciplines: from structured polymer film, polaritonic boron nitride materials, to isolated bacterial peptidoglycan cell walls. The generalized heterodyne configurations introduce flexibility for the implementation of PiFM and related tapping mode AFM-IR, and provide possibilities for additional modulation channel in PiFM for targeted signal extraction with nanoscale spatial resolution.</div>


1977 ◽  
Vol 16 (2) ◽  
pp. 220-222
Author(s):  
Zeba A. Sathar

The book covers a wide field, touching on almost all aspects of popula¬tion change on a world-wide scale. It discusses, using world and country data, the relationships between demographic and socio-economic variables, and elaborates on" their relative importance in the determination of population problems which confront the world as a whole and nations individually. Policies designed to alleviate these problems are discussed with an emphasis on those related to population control. The first chapter is entitled "Population Growth: Past and Prospective" and reviews the various parameters associated with population change in the past and in the future. It touches upon the concept of a stable population in order to show the elements which cause a population to change (i.e. remove it from its stable condition). The main elements of change, population growth, migration, mortality and natality are discussed individually. The chapter is concluded by a description of the main differences in these elements and other socio-economic conditions as they exist in the less-developed and developed countries.


Author(s):  
Denis Voloshinov ◽  
K. Solomonov ◽  
Lyudmila Mokretsova ◽  
Lyudmila Tishchuk

The application of constructive geometric modeling to pedagogical models of teaching graphic disciplines today is a promising direction for using computer technology in the educational process of educational institutions. The essence of the method of constructive geometric modeling is to represent any operation performed on geometric objects in the form of a transformation, as a result of which some constructive connection is established, and the transformation itself can be considered as a result of the action of an abstract cybernetic device. Constructive geometric modeling is a popular information tool for information processing in various applied areas, however, this tool cannot be appreciated without the presence of appropriate software systems and developed design techniques. Traditionally, constructive geometric modeling is used in the design of mechanical engineering, energy, aircraft and shipbuilding facilities, in architectural and design engineering. The need to study descriptive geometry at the university in recent years has something in common with the issues of mastering graphic packages of computer programs in the framework of the new discipline "Engineering and Computer Graphics". The well-known KOMPAS software product is considered the simplest and most attractive for training. It should be noted the important role of graphic packages in the teaching of geometric disciplines that require a figurative perception of the material by students. Against the background of a reduction in classroom hours, computer graphics packages are practically the only productive teaching methodology, successfully replacing traditional tools - chalk and blackboard.


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