bluuebunny/crossref_metadata_2025 huggingface dataset:
BORSA İSTANBUL BANKA ENDEKSİ’NİN VERİ TABANLI MODELLER İLE ANALİZ EDİLMESİ
Authors: SARI Salim Sercan , BAŞAKIN Eyyup Ensar
Published: June 2021

Amaç: Çalışmada yatırımcıların beklentilerinde meydana gelen değişikliklerin belirlenmesi ve doğru kararlar almaları amacıyla, risk iştahı göstergelerinden Risk İştahı Endeksi ve VIX Korku Endeksinin hisse senedi getirileri üzerindeki etkisi ülkemiz piyasaları için tahmin edilmeye çalışılmıştır.Yöntem: Çalışmanın teorik kısmını destekleyecek olan, araştırmada yer alan yöntemler; Yapay Sinir Ağları (YSA), Destek Vektör Makineleri (DVM) ve Adaptif Ağ Tabanlı Bulanık Çıkarım Sistemi (ANFIS)’dir. Yöntemleri uygulamak için Statistica ve MATLAB paket programlarından faydalanılmıştır.Bulgular: Yapılan analizler sonucunda Risk İştahı Endeksi ve VIX Korku Endeksinin hisse senedi getirilerini kabul edilebilir doğrulukta tahmin edebildiği ortaya çıkmıştır. Bu sayede karar alıcı kişi ya da kurumların yatırım işlemlerini etkin bir şekilde gerçekleştirebilmelerinin önü açılacaktır.Özgünlük: Risk iştahı göstergelerinden en doğru olanının seçilmesi ve getiri tahminlerinde kullanılmasının, yatırımcıların kararlarının etkinliğine katkı sağlayacaktır. Bu çalışma ile veri tabanlı modeller kullanılarak risk iştahı göstergeleriyle getiri endeksi arasındaki ilişkinin Türkiye için tahmin edilmesi ilk kez denenmiştir.
ALTERNATİF TURİZM KAPSAMINDA EĞİTİM TURİZMİ VE AKDENİZ ÜNİVERSİTESİNDE BİR UYGULAMA
Authors: HEYDAROV Mir Salim , GÜLMEZ Mustafa
Published: June 2021

Amaç: Bu çalışma ile eğitim amaçlı turizm faaliyetleri çerçevesinde yabancı uyruklu öğrencilerin yükseköğrenim amacı ile ziyaret ettikleri şehre yönelik algılarını ölçerek, bireylerin öğrenim gördükleri şehre yönelik algılarının demografik değişkenlere göre farklılaşıp farklılaşmadığını ve bu algıların destinasyon sadakati üzerindeki etkisini ortaya koymak amaçlanmıştır.Yöntem: Araştırmanın evrenini, Antalya ilinde bulunan Akdeniz Üniversitesi'nde yükseköğrenim gören yabancı uyruklu öğrenciler oluşturmaktadır. Tesadüfi olmayan örnekleme yöntemlerinden Kolayda Örnekleme Yöntemi ile 200 öğrenciden anket aracılığıyla veriler toplanmıştır.Bulgular: Antalya’ya gelen yabancı uyruklu öğrencilerin şehre yönelik algılarının genel olarak olumlu yönde olduğu; Antalya’nın öğrenciler tarafından güvenli bir şehir, dini ve ırksal açıdan özgür bir şehir, yaşamak için heyecan verici bir yer olarak algılandığı sonucuna ulaşılmıştır.Özgünlük: Türkiye, uluslararası öğrenci hareketliliği konusuna önem vermesine karşın ülke genelinde bu konuda yapılmış kapsamlı bir çalışma bulunmadığı için bu çalışma ile mevcut literatüre katkı sağlanacağı değerlendirilmektedir.
U.S. Demand for AI Certifications: Promise or Hype?
Authors:   Center for Security and Emerging Technology, Gehlhaus Diana , Pancorbo Ines
Published: June 2021

This issue brief explores whether artificial intelligence and AI-related certifications serve as potential pathways to enter the U.S. AI workforce. The authors find that according to U.S. AI occupation job postings data over 2010–2020, there is little demand from employers for AI and AI-related certifications. From this perspective, such certifications appear to present more hype than promise.
Ledare
Authors: Svenungsson Jayne
Published: June 2021

N/A
Infección por Rhodotorula mucilaginosa en trasplante alogénico de progenitores hematopoyéticos, reporte de un caso.
Authors: Chaparro Mauricio , Estupiñán Marcela , Camacho Germán , Uribe Gloria
Published: June 2021

Se describe el caso de una paciente de 9 años de edad con infección por Rhodotorula mucilaginosa asociada a catéter venoso central, con anemia aplásica adquirida severa después de trasplante alogénico de progenitores hematopoyéticos de donante idéntico emparentado.
Neoplasia mieloide con eosinofilia con el reordenamieno PDGFRA con manifestaciones pulmonares y cutáneas : a propósito de un caso.
Authors: Serrano Casas Juan Carlos , Varón Jaimes Carlos Roberto , Maldonado Santos Luz Karine , Celis Correa Juan Gabriel
Published: June 2021

La hipereosinofilia se encuentra presente en un conjunto de trastornos con producción excesiva de eosinófilos, capaz de generar daño a órganos y sistemas. El estudio genético y molecular de estas entidades ha permitido la clasificación de un grupo de neoplasias mieloides o linfoides de evolución clínica variable. En neoplasias mieloides con hipereosinofilia, la afectación pulmonar es relativamente frecuente, sin embargo, la presentación con cuadro de síndrome de dificultad respiratoria aguda (SDRA) es muy inusual. En este artículo exponemos el caso de un paciente masculino con rápida instauración de síntomas respiratorios, hepatoesplenomegalia, anemia, leucocitosis con eosinofilia y detección de reordenamiento FIP1L1-PDGFRA, al que se le estableció diagnóstico bajo criterios OMS de neoplasia mieloide con eosinofilia y reordenamiento PDGFRA. Se inició tratamiento con imatinib, logrando rápida resolución de cuadro hematológico y respiratorio.
Reminiscências: crônicas e contos
Authors: Batista Jorge
Published: June 2021

O autor, ao querer relatar a sua experiência como empresário, na construção de obra de grande envergadura e complexidade pelo mundo afora, e por força de seu pensamento filosófico, presenteia-nos com uma leitura que, concomitantemente, é intrigante e dialética, quando introduz pensamentos filosóficos de grandes pensadores da humanidade, para explicar a sua reação e interpretação dos casos contados.
DISTANCE LEARNING METHODS FOR STEM EDUCATION COURSES
Authors:   Abai Kazakh National Pedagogical University, Almaty, Bostanov B.G. , Grigoriev S.G. ,   Abai Kazakh National Pedagogical University, Almaty, Nurlybaev K.K. ,   Abai Kazakh National Pedagogical University, Almaty
Published: June 2021

New technologies and innovative devices are increasingly penetrating into human life, actualizing the need for their development and implementation. An important role in this process is the training of teachers who are able to master and use such equipment in the field of education. Currently, STEM education is becoming increasingly popular, allowing you to quickly master new devices and technologies. Special pedagogical STEM parks are being created, where innovative techniques are being tested in the training of teachers. In Kazakhstan, as well as other countries with vast territories, the development of STEM education is possible through the use of remote forms of organization of the educational process. This paper discusses possible ways to use and develop distance-learning forms in the organization of STEM courses. Models of organizing courses on mechatronics and robotics based on the use of new educational devices are proposed.
«BIG DATA» IN EDUCATION: INTERNATIONAL AND RUSSIAN EXPERIENCE
Authors:   Moscow City University, Moscow, Grinshkun V.V. , Zaslavskaya O.Yu. ,   Moscow City University, Moscow
Published: June 2021

Big data analysis and their free circulation can serve as a basis for qualitative changes, the formation of a new modern and dynamically developing education system. The article analyzes data on the educational process, which will make it possible to better assess teachers and, if necessary, make changes to the content of their training. As data for the analysis, information about the traits of the student's character, his success in learning, and previous work experience are used. One of the significant points in terms of collecting and structuring big data in Russian education is the creation and implementation of the Moscow Electronic School project. Big data collection and analysis technologies open up great prospects for creating new positive learning experiences and highly effective expansion of lifelong learning competencies.
STRUCTURAL AND LOGICAL MODEL OF DEVELOPMENT OF PROFESSIONAL COMPETENCE OF FUTURE TEACHERS OF COMPUTER SCIENCE TO LEARNING COMPUTATIONAL INFORMATICS
Authors:   Abai Kazakh National Pedagogical University, Almaty, Kamalova G.B. , Revshenova M.I. ,   Abai Kazakh National Pedagogical University, Almaty
Published: June 2021

In order to reveal the structure of the process of developing the professional competence of a future computer science teacher when teaching computer science, we will use modeling as a method of cognition of complex objects, processes and phenomena. In order to develop the professional competence of a future computer science teacher in the process of teaching computer science, a structural and logical model was developed. This article is devoted to the creation of a structural and logical model for the development of professional competence of future computer science teachers in the process of teaching computer science at a pedagogical University. The developed model includes a target, content, organizational-activity, and performance-criteria block. The methodological basis for designing a structural and logical model for the development of information and computing competence of a future computer science teacher was the system, activity, and competence approaches. Each block of the structural and logical model has functions, content, and methodological features. The levels of formation of information and computing competence of future computer science teachers are represented by low, medium and high levels.
PROBLEMS OF CREATING A MOBILE APPLICATION FOR A BIBLIOGRAPHIC INFORMATION SEARCH ENGINE
Authors:   Aktobe regional University named after K. Zhubanov, Aktobe, Karataev R.K. , Baibaktina А.Т. ,   Aktobe regional University named after K. Zhubanov, Aktobe
Published: June 2021

Currently, the number of resources available on the Internet is significantly increasing. It then has a large amount of information, but without mastering the content. In this vast data warehouse, the research of modern information search engines does not allow users to get results for their queries that exactly meet their needs. This is largely due to indexing methods (keywords, thesaurus). The result is that the network user spends most of their time exploring a large number of web pages, looking for what they need, because the network does not provide services in this direction. The article presents the technology of creating a bibliographic information search system.We also consider the issues of choosing the environment for creating an information search system and establishing advanced information search modes (standard, advanced, professional, dictionary, etc.).
IMPACT OF DEFORMABLE STAMP WITH A MULTILAYERED WALL
Authors:   Eurasian National University named after L.N. Gumilyov, Nur-Sultan, Bukenov М.M. , Mukhametov Ye.M. ,   Eurasian National University named after L.N. Gumilyov, Nur-Sultan, Iskakova M.T. ,   Abai Kazakh National Pedagogical University, Almaty
Published: June 2021

In this paper, was performed by numerical work according to the difference scheme. Analysis of the numerical results showed: one of the important issues of contact interaction is to determine the duration of the impact of the colliding bodies. Obviously, under the condition of a hard clutch, sticking of the striker from the barrier will not occur. To study the process of complete breakage of mechanical contact (appearance of separation zones), we will use boundary conditions that simulate a perfectly smooth impact. Analysis of the dynamics of contact resistance has shown that its magnitude and features of evolution over time substantially depend on the geometric and physicomechanical parameters of the deformable system, as well as on the type of boundary conditions. An increase in the acoustic rigidity of the impactor leads to an increase in the amplitude and duration of the impact. The impact of a less rigid punch or the presence in the barrier of a shielding layer of a polymeric material reduces the contact resistance of the plate, but the force interaction between the impacted bodies is longer. As the analysis of the results shows, the evolution of contact stresses is characterized by a number of specific features. For example, there is a direct correlation between the height of the cylinder and the time of its complete detachment from the obstacle, which corresponds to the vanishing of the function   tk  . An increase in the acoustic rigidity of the impactor leads to a sharp increase in the amplitude of the total resistance and an increase in the duration of the contact interaction. Thus, the contours of the isolines provide a visual representation of the configuration of the areas at which points the stresses develop, immediately preceding the appearance of elastoplastic deformations for spall fractures (for brittle materials).
THE CAUCHY-DIRICHLET PROBLEM FOR A SYSTEM OF FIRST-ORDER EQUATIONS
Authors:   Al-Farabi Kazakh National University, Almaty, Tokibetov Zh.A. , Bashar N. E. ,   Al-Farabi Kazakh National University, Almaty, Pirmanova А.К. ,   Al-Farabi Kazakh National University, Almaty
Published: June 2021

For a single second-order elliptic partial differential equation with sufficiently smooth coefficients, all classical boundary value problems that are correct for the Laplace equations are Fredholm. The formulation of classical boundary value problems for the laplace equation is dictated by physical applications. The simplest of the boundary value problems for the Laplace equation is the Dirichlet problem, which is reduced to the problem of the field of charges distributed on a certain surface. The Dirichlet problem for partial differential equations in space is usually called the Cauchy-Dirichlet problem. This work dedicated to systems of first-order partial differential equations of elliptic and hyperbolic types consisting of four equations with three unknown variables. An explicit solution of the CauchyDirichlet problem is constructed using the method of an exponential – differential operator. Giving a very simple example of the co-solution of the Cauchy problem for a second-order differential equation and the Cauchy problem for systems of first-order hyperbolic differential equations.
FORMATION OF RESEARCH COMPETENCE OF STUDENTS AT THE PROCESS OF STUDYING THE VISCOSITY OF A LIQUID
Authors:   Zhetysu University named after I.Zhansugurov, Taldykorgan, Akzholova A. , Kossov V. ,   Abai Kazakh National Pedagogical University, Almaty, Abdulayeva A. ,   Zhetysu University named after I.Zhansugurov, Taldykorgan
Published: June 2021

The article examines the goals and objectives of the methodology for forming the research competence of students, using the example of the study of the internal viscosity coefficient of a liquid. The results of the study allowed us to establish components of subject research competence and find out its main structural elements - the readiness, ability of students to perform educational research, following the stages of organizing research activities, which are based on the logic of implementation of a research project. The practical implementation of the formation of this competence is one of the topical issues of educational practice of the pedagogical University, since its results deepen, expand and specify modern ideas about the information and communication capabilities of cognitive activity of students.
NUMERICAL RESEARCH OF THE CHANGE OF REGIME FOR UNSTABLE MASS TRANSFER IN A TERNARY GAS MIXTURE HYDROGEN- NITRIC OXIDE-NITROGEN
Authors:   Abai Kazakh National Pedagogical University, Almaty, Kalimov A.B. , Fedorenko O.V. ,   Al-Farabi Kazakh National University, Almaty, Kossov V.N. ,   Abai Kazakh National Pedagogical University, Almaty
Published: June 2021

On the basis of the software package "MathCad", by solving the Stefan-Maxwell diffusion equations, the evolution of the features of mass transfer in a three-component gas mixture, depending on pressure changes, has been numerically studied. In this analysis, the mixing process is studied in a vertical cylindrical channel of a finite size and at the isothermal conditions. The governing equations are solved at the boundary conditions assuming the absence of matter transfer through the walls of diffusion channel. Through the Rayleigh partial numbers, the influence of the pressure change on the behaviour of diffusion and convective flows is examined. The numerical results reveal that an increase in the pressure leads to a change of modes in ternary gas mixture. The present results are in good agreement with the existing experimental data.
ADAPTATION OF THE SMM-2000 INSTALLATION TO STUDENTS SCIENTIFIC WORKS ON STUDYING THE SURFACE OF VARIOUS MATERIALS
Authors:   Abai Kazakh National Pedagogical University, Almaty, Nassirova D.M. , Myrzatay М.М. ,   Abai Kazakh National Pedagogical University, Almaty, Ussenova А. ,   Abai Kazakh National Pedagogical University, Almaty, Nurakhmet B. ,   Abai Kazakh National Pedagogical University, Almaty
Published: June 2021

This paper presents the capabilities of the device "Scanning multi-microscope SMM-2000" as one of the most modern methods for measuring the characteristics of materials and diagnostics of features of small-size systems. The SMM-2000 scanning multi-microscope is designed for measuring geometric and physical parameters of the surface topography of samples with nanometer spatial resolution. The principle of operation of the device is briefly described and the parameters of manual and automatic settings are presented. On the example of scanning sample No. 2 - gold on mica, graphical results are shown that show sectional analysis for the selected area of the frame, and the results of the surface roughness parameters of the selected area are also shown. Described the possibility of carrying out Fourier analysis, morphological analysis, correlation analysis, fractal analysis, etc.
ON THE ISSUE OF TRAINING FUTURE COMPUTER SCIENCE TEACHERS IN COMPUTER
Authors:   Abai Kazakh National Pedagogical University, Almaty, Bidaybekov Ye.Y. , Khenner Y.K. ,   Perm State National Research University, Perm, Shekerbekova Sh.T. ,   Abai Kazakh National Pedagogical University, Almaty, Zhabayev Y. Н. ,   Abai Kazakh National Pedagogical University, Almaty
Published: June 2021

The article discusses of training future computer science teachers in computer networks based on network simulation. Analysis of scientific and pedagogical and educational literature has shown that in the training of computer science teachers, computer networks are studied in the aspect of information simulation of their structures, while simulation the processes of their functioning is not given due attention, despite the possibility of its use in the organization of training. Most educational institutions face organizational, technical and material difficulties when organizing training in computer networks on real equipment. The above-mentioned difficulties in training future computer science teachers in computer networks can be avoided by using network simulation. By network simulation, we mean reproducing a dynamic image of the main network components (network cables, switches, hubs, routers, etc.) and visualization the processes of their configuration and operation on the computer screen.
FORMATION FUTURE COMPUTER SCIENCE TEACHERS’ COMMUNICATIVE ABILITIES IN STUDYING INTERNET OF THINGS (IoT)
Authors:   Almaty Branch of the Saint-Petersburg University of the Humanities and Social Sciences, Almaty, Akhmetova O.S. , Issayev S.A. ,   Kazakh National Women’s Teacher Training University, Almaty, Kaiyrgaliyeva A.K. ,   Kazakh National Women’s Teacher Training University, Almaty
Published: June 2021

To date, several trends in digital technologies have been identified, among which the Internet of Things stands out – a network of digital devices and devices that interact via the Internet. The application areas of the Internet of Things are very wide: industrial technologies, remote service and survival technologies, educational technologies. Modern digital technologies should be introduced into the content of technological education in schools and in the training of computer science teachers. This need is also determined by the currently implemented national projects "Digital Kazakhstan" and "Education". The purpose of the article is to consider the Internet of Things as the content of technological education of future computer science teachers. The article will focus on the formation and development of professional ICT (information and communication technologies) qualifications of the future computer science teacher when teaching the Internet of Things in higher education institutions. When teaching the Internet of Things (IoT), the problems that may arise are taken into account, and it is described how this affects the information and communication skills of the future teacher.
APPLICATION OF CLOUD TECHNOLOGIES IN BLENDED LEARNING METHODS
Authors:   Al-Farabi Kazakh National University, Almaty, Kerimbaev N.N. , Jotsov V.S. ,   University of Library Studies and Information Technologies, Sofia. аl-Farabi Kazakh National University, Almaty, Bolyskhanova M.J. ,   Al-Farabi Kazakh National University, Almaty
Published: June 2021

This article provides an overview of scientific papers on the importance of using cloud technologies. The use of cloud technologies and cloud computing services in higher education is dictated by modern requirements. Currently, one of the tasks set for higher education institutions to improve the field of education is the implementation of blended teaching methods. From this point of view, the article discusses methods and techniques that give advantages in blended learning using modern cloud technologies. It is also reported that cloud technologies can be applied to both traditional education and distance learning. It also covers new directions in the development of processing and storage of data obtained in the field of education using distributed systems and cloud computing. In turn, the use of cloud services will create a unique information and educational platform that meets the requirements of education in the country.
METHODOLOGICAL SYSTEM OF TRAINING FUTURE INFORMATICS TEACHERS ON THE BASICS OF ARTIFICIAL INTELLIGENCE
Authors:   Kazakh National Women’s Teacher Training University, Almaty, Salgaraeva G. , Zhumabaeva U. ,   Kazakh National Women’s Teacher Training University, Almaty
Published: June 2021

The article presents a methodological system for training future Informatics teachers on the basics of artificial intelligence. Currently, artificial intelligence is being used in various fields, from the presentation of knowledge to the development of expert systems, intellectual games and robotics tools. In this case, there is a problem of developing a methodological system for training future Informatics teachers based on elements of artificial intelligence in pedagogical educational institutions. This proposed to solve this problem using the method of problem-based learning and combining theory with practice from the point of view of critical thinking technology. Modern analytical platforms, intelligent training systems, and expert systems are used as training tools. The educational content of the basics of artificial intelligence is built on the basis of systematic, fundamental and interdisciplinary approaches. This made it possible to determine the goals of teaching future computer science teachers the basics of artificial intelligence, reveal the requirements for the formation of concepts in the field of artificial intelligence, identify the basic knowledge system that allows you to teach elements of artificial intelligence in a computer science course. The article describes the results of the implementation of the methodological system for training future computer science teachers on the basics of artificial intelligence in the educational process.
UNIVERSITIES AS LEARNING ORGANIZATIONS IN THE DIGITAL WORLD
Authors:   Financial Academy, Nur-Sultan, Skiba М.А. , Turganbayeva A.R. ,   Al-Farabi Kazakh National University, Almaty
Published: June 2021

The article reveals the features of the development of universities as learning organizations operating in the digital world. The discrepancy between the formal understanding of the university, fixed in regulatory legal acts, and the real functions of a modern university is revealed. The analysis of the coincidence of the semantic series of the concepts "university" and "learning organization" is carried out. The teacher functions of a university, which is a learning organization, have been identified. Awareness by universities of the need for the preservation, accumulation and development of knowledge leads to the translation of non-formalized knowledge of individual employees into formalized descriptions and procedures. The stages of development of the university as a learning organization are proposed. It is concluded that not only the knowledge itself should be used within the university, but also knowledge about knowledge and the ability to manage it, in this case the university can be considered a learning organization.
RESEARCH OF INFORMATION SYSTEMS DESIGN SOFTWARE
Authors:   Shymkent University, Shymkent, Тursynbayev А.Z. , Balganova М.S. ,   Shymkent University, Shymkent, Khojaniyazova G.М. ,   Shymkent University, Shymkent, Shaukhan S.N. ,   Shymkent University, Shymkent
Published: June 2021

The main goal is to maximize automation of system design and analysis stages in order to create formal and nonlinear models of the system. Many modern CASE tools support structural and object-oriented methodologies for analyzing and designing information systems. The software is intended for solving specific user tasks and mainly for organizing the computing process of an information system. The application package is a powerful tool for automating user-defined tasks. It completely frees the user from the need to know how the functions and procedures of information processing are performed on the computer. CASE technologies are usually used when creating complex information systems that require collective project implementation. The absolute advantage of CASE technology is that documents are always responsible for the current state of work. Because any changes in the project are automatically displayed in the database.
Kajian Hubungan Orang Tua dengan Anak Berdasarkan Efesus 6:1-4 di Gereja GEKISIA Medan
Authors: Sulistiana Reni
Published: June 2021

Time by time, the relationship between parents and children changes, namely family dysfunction. The responsibilities of both parents and children do not work properly. The researcher aims to know how the parent and child relationship according to the Bible is based on Ephesians 6: 1-4. Data collection using questionnaires. This research is survey research is eskriptif. The results showed that the congregation had a good knowledge of the responsibilities of parents (70%) and those with fairly good knowledge (30%). There are also children who have responsibilities (60%) and have good knowledge (40%). Therefore, to improve the quality of the relationship between parent and child, then the servants of God and the minister of GEKISIA Medan need to increase the quantity of activities such as family retreats, workshops, as well as through the teachings held in Family PA. In addition, the citizens of the congregation to be more diligent to worship and follow the teachings that are held in the church.
Implementasi Model Pembelajaran Think Pair Share dalam Meningkatkan Hasil Belajar Siswa Kelas III SD pada Mata Pelajaran Pendidikan Agama Kristen
Authors: Hutauruk Riyati
Published: June 2021

Penelitian ini bertujuan untuk mengetahui peningkatan hasil belajar siswa sekolah dasar pada mata pelajaran Pendidikan Agama Kristen setelah diterapkan model pembelajaran Think-Pair-Share selama kegiatan belajar mengajar pada Siswa Sekolah Dasar. Jenis penelitian yang digunakan adalah Penelitian Tindakan Kelas (PTK). Subjek penelitian adalah siswa kelas III SD Negeri 153075 Pinangsori 4 dengan jumlah siswa sebanyak 14 orang.Hasil penelitian menunjukkan bahwa hasil belajar kognitif siswa meningkat sesuai dengan ketuntasan klasikal. Selain itu, afektif siswa juga meningkat di setiap indikatornya dan sesuai dengan nilai rata-rata proporsi ketuntasan dengan nilai A (sangat baik). Lebih lanjut, psikomotorik siswa meningkat pada setiap indikatornya dan sesuai dengan nilai rata-rata proporsi ketuntasan dengan nilai A (sangat baik). Peningkatan ketiga aspek tersebut membuktikan bahwa hasil belajar siswa meningkat melalui penerapan model pembeljajaran Think-Pair-Share.
Particle size-dependent fluorescence properties of water-soluble organic compounds (WSOC) and their atmospheric implications on the aging of WSOC
Authors: Qin Juanjuan , Tan Jihua , Zhou Xueming , Yang Yanrong , Qin Yuanyuan , Wang Xiaobo , Shi Shaoxuan , Xiao Kang , Wang Xinming
Published: June 2021

Abstract. Water-soluble organic compounds (WSOC) are essential in atmospheric particle formation, migration, and transformation processes. Size-segregated atmospheric particles were collected in a rural area of Beijing. Excitation-emission matrix (EEM) fluorescence spectroscopy was used to investigate the sources and optical properties of WSOC. Sophisticated data analysis on EEM data was performed to characteristically estimate the underlying connections among aerosol particles in different sizes. The WSOC concentrations and average fluorescence intensity (AFI) showed monomodal distribution in winter and bimodal distribution in summer, with dominant mode between 0.26 to 0.44 µm for both seasons. The EEM spectra of size-segregated WSOC were different among variant particle sizes, which could be the results of changing sources and/or chemical transformation of organics. Size distributions of fluorescence regional intensity (region Ⅲ and Ⅴ) and HIX indicate that humification degree or aromaticity of WSOC was highest between 0.26 to 0.44 µm. The Stokes shift (SS) and the harmonic mean of the excitation and emission wavelengths (WH) reflected that π-conjugated systems were high between 0.26 to 0.44 µm as well. The parallel factor analysis (PARAFAC) results showed that humic-like substances were abundant in fine particles (< 1 µm) and peaked at 0.26–0.44 µm. All evidence supported that the humification degree of WSOC increased in submicron mode (< 0.44 µm) and decreased gradually. Thus, it was conjectured that condensation of organics still goes on in submicron mode, resulting in the highest humification degree exhibit in particle size between 0.26 to 0.44 µm rather than < 0.26 µm. Synthetically analyzing 3-dimensional fluorescence data could efficiently present the secondary transformation processes of WSOC.
Contrail formation within cirrus: high-resolution simulations using ICON-LEM
Authors: Verma Pooja , Burkhardt Ulrike
Published: June 2021

Abstract. Contrail formation within natural cirrus introduces large perturbations in cirrus ice crystal number concentrations leading to modifications in cirrus microphysical and optical properties. The number of contrail ice crystals formed in an aircraft plume depends on the atmospheric state and aircraft and fuel properties. Our aim is to study the impact of pre-existing cirrus on the contrail formation processes. We analyze contrail ice nucleation within cirrus and the survival of contrail ice crystals within the vortex phase and their change due to the presence of cirrus ice crystals within the high-resolution ICON-LEM at a horizontal resolution of 625 m over Germany. We have selected two different synoptic situations sampling a large range of cirrus cloud properties from very thick cirrus connected with a frontal system to very thin cirrus within a high-pressure system. We find that contrail formation within cirrus often leads to increases in cirrus ice crystal numbers by a few orders of magnitude. Pre-existing cirrus has an impact on contrail ice crystal number concentrations only if the cirrus is optically thick. In thick cirrus, contrail ice nucleation rates and ice crystal survival rates within the vortex phase are both increased. The sublimation of the cirrus ice crystals sucked into and subsequently sublimated within the aircraft’s engine leads to an increase in the contrail formation threshold by up to 0.7 K which causes an increase in the number of nucleated contrail ice crystals. This increase can be large at lower flight levels where ambient temperatures are close to the contrail formation threshold temperature and when the ice water content of the pre-existing cirrus cloud is large. During the contrail’s vortex phase the aircraft plume is trapped within the descending vortices in which the decrease in plume relative humidity leads to the sublimation of contrail ice crystals. This contrail ice crystal loss can be modified by the cirrus ice crystals that are mixed into the plume before the start of the vortex phase. In particular, high ice crystal number concentrations and large ice water content of the pre-existing cirrus cloud or low contrail ice crystal numbers are associated with significant increases in the contrail ice crystal survival rates.
Development and application of a United States-wide correction for PM2.5 data collected with the PurpleAir sensor
Authors: Barkjohn Karoline K. , Gantt Brett , Clements Andrea L.
Published: June 2021

Abstract. PurpleAir sensors, which measure particulate matter (PM), are
widely used by individuals, community groups, and other organizations
including state and local air monitoring agencies. PurpleAir sensors
comprise a massive global network of more than 10 000 sensors. Previous
performance evaluations have typically studied a limited number of PurpleAir
sensors in small geographic areas or laboratory environments. While useful
for determining sensor behavior and data normalization for these geographic
areas, little work has been done to understand the broad applicability of
these results outside these regions and conditions. Here, PurpleAir sensors
operated by air quality monitoring agencies are evaluated in comparison to
collocated ambient air quality regulatory instruments. In total, almost
12 000 24 h averaged PM2.5 measurements from collocated PurpleAir
sensors and Federal Reference Method (FRM) or Federal Equivalent Method
(FEM) PM2.5 measurements were collected across diverse regions of the
United States (US), including 16 states. Consistent with previous
evaluations, under typical ambient and smoke-impacted conditions, the raw
data from PurpleAir sensors overestimate PM2.5 concentrations by about
40 % in most parts of the US. A simple linear regression reduces much of
this bias across most US regions, but adding a relative humidity term
further reduces the bias and improves consistency in the biases between
different regions. More complex multiplicative models did not substantially
improve results when tested on an independent dataset. The final PurpleAir
correction reduces the root mean square error (RMSE) of the raw data from
8 to 3 µg m−3, with an average FRM or FEM
concentration of 9 µg m−3. This correction equation, along with
proposed data cleaning criteria, has been applied to PurpleAir PM2.5
measurements across the US on the AirNow Fire and Smoke Map
(https://fire.airnow.gov/, last access: 14 May 2021) and has the potential to be successfully used in other air
quality and public health applications.
Swarm Langmuir Probes' data quality and future improvements
Authors: Catapano Filomena , Buchert Stephan , Qamili Enkelejda , Nilsson Thomas , Bouffard Jerome , Siemes Christian , Coco Igino , D'Amicis Raffaella , Tøffner-Clausen Lars , Trenchi Lorenzo , Holmdahl Olsen Poul Erik , Stromme Anja
Published: June 2021

Abstract. Swarm is ESA's (European Space Agency) first Earth observation constellation mission, which was launched in 2013 to study the geomagnetic field and its temporal evolution. Two Langmuir Probes (LPs) on board of each of the three Swarm satellites provide very accurate measurements of plasma parameters, which contribute to the the study of the ionospheric plasma dynamics. To maintain a high data quality for scientific and operational applications, the Swarm products are continuously monitored and validated via science-oriented diagnostics. This paper presents an overview of the data quality of the Swarm Langmuir Probes' measurements. The data quality is assessed by analysing short and long data segments, where the latter are selected sufficiently long to consider the impact of the solar activity. Langmuir Probes data have been validated through comparison with numerical models, other satellite missions, and ground observations. Based on the outcomes from quality control and validation activities conduced by ESA, as well as scientific analysis and feedback provided by the user community, the Swarm products are regularly upgraded. In this paper we discuss the data quality improvements introduced with the latest baseline, and how the data quality is influenced by the solar cycle. The main anomaly affecting the LP measurements is described, as well as possible improvements to be implemented in future baselines.
Multiple hazards and risk perceptions over time: The availability heuristic in Italy and Sweden under COVID-19
Authors: Di Baldassarre Giuliano , Mondino Elena , Rusca Maria , Del Giudice Emanuele , Mård Johanna , Ridolfi Elena , Scolobig Anna , Raffetti Elena
Published: June 2021

Abstract. The severe impact of global crises, such as COVID-19 and climate change, is plausibly reshaping the way in which people perceive risks. In this paper, we examine and compare how global crises and local disasters influence public perceptions of multiple hazards in Italy and Sweden. To this end, we integrate information about the occurrence of hazardous events with the results of two nationwide surveys. These included more than 4,000 participants and were conducted in two different phases of the COVID-19 pandemic corresponding to low (August 2020) and high (November 2020) levels of infection rates. We found that, in both countries, people are more worried about risks related to experienced events. This is in line with the cognitive process known as availability heuristic: individuals assess the risk associated with a given hazard based on how easily it comes to their mind. Epidemics, for example, are perceived as less likely and more impactful in Italy compared to Sweden. This outcome can be explained by cross-country differences in the impact of, and governmental responses to, COVID-19. Notwithstanding the ongoing pandemic, people in both Italy and Sweden are highly concerned about climate change and they rank it as the most likely threat.
Implications of surface flooding on airborne estimates of snow depth on sea ice
Authors: Rösel Anja , Farrell Sinead Louise , Nandan Vishnu , Richter-Menge Jaqueline , Spreen Gunnar , Divine Dmitry V. , Steer Adam , Gallet Jean-Charles , Gerland Sebastian
Published: June 2021

Abstract. Snow depth observations from airborne snow radars, such as the
NASA's Operation IceBridge (OIB) mission, have recently been used in
altimeter-derived sea ice thickness estimates, as well as for model
parameterization. A number of validation studies comparing airborne and
in situ snow depth measurements have been conducted in the western Arctic
Ocean, demonstrating the utility of the airborne data. However, there have
been no validation studies in the Atlantic sector of the Arctic. Recent
observations in this region suggest a significant and predominant shift
towards a snow-ice regime caused by deep snow on thin sea ice. During the Norwegian
young sea Ice, Climate and Ecosystems (ICE) expedition (N-ICE2015) in the area north of Svalbard, a
validation study was conducted on 19 March 2015. This study collected
ground truth data during an OIB overflight. Snow and ice thickness
measurements were obtained across a two-dimensional (2-D) 400 m × 60 m grid.
Additional snow and ice thickness measurements collected in situ from
adjacent ice floes helped to place the measurements obtained at the gridded
survey field site into a more regional context. Widespread negative
freeboards and flooding of the snowpack were observed during the N-ICE2015
expedition due to the general situation of thick snow on relatively thin
sea ice. These conditions caused brine wicking into and saturation of the
basal snow layers. This causes the airborne radar signal to undergo more
diffuse scattering, resulting in the location of the radar main scattering
horizon being detected well above the snow–ice interface. This leads to a
subsequent underestimation of snow depth; if only radar-based information is
used, the average airborne snow depth was 0.16 m thinner than that measured
in situ at the 2-D survey field. Regional data within 10 km of the 2-D
survey field suggested however a smaller deviation between average airborne
and in situ snow depth, a 0.06 m underestimate in snow depth by the airborne
radar, which is close to the resolution limit of the OIB snow radar system.
Our results also show a broad snow depth distribution, indicating a large
spatial variability in snow across the region. Differences between the
airborne snow radar and in situ measurements fell within the standard
deviation of the in situ data (0.15–0.18 m). Our results suggest that seawater flooding of the snow–ice interface leads to underestimations of snow
depth or overestimations of sea ice freeboard measured from radar
altimetry, in turn impacting the accuracy of sea ice thickness estimates.
Quantifying wind plant blockage under stable atmospheric conditions
Authors: Sanchez Gomez Miguel , Lundquist Julie K. , Mirocha Jeffrey D. , Arthur Robert S. , Muñoz-Esparza Domingo
Published: June 2021

Abstract. Wind plant blockage reduces the wind velocity upstream undermining turbine performance for the first row of the plant. We assess how atmospheric stability modifies the induction zone of a wind plant in flat terrain. We also explore different approaches to quantifying the magnitude and extent of the induction zone from field-like observations. To investigate the influence from atmospheric stability, we compare simulations of two stable boundary layers using the Weather Research and Forecasting model in large-eddy simulation mode, representing wind turbines using the generalized actuator disk approach. We find a faster cooling rate at the surface, which produces a stronger stably stratified boundary layer, amplifies the induction zone of both an isolated turbine and of a large wind plant. A statistical analysis on the hub-height wind speed field shows wind slowdowns only extend far upstream (up to 15D) of a wind plant in strong stable boundary layers. To evaluate different ways of measuring wind plant blockage from field-like observations, we consider various ways of estimating the freestream velocity upstream of the plant. Sampling a large area upstream is the most accurate approach to estimating the freestream conditions, and thus of measuring the blockage effect. Also, the choice of sampling method may induce errors of the same order as the velocity deficit in the induction zone.
Attitudes of Abu Dhabi Educators Toward Gifted Education and Twice-Exceptional Students
Authors: Elhoweris Hala , Bond Sarah , Alameri Mona , Takrit Rachel , Alhosani Najwa
Published: June 2021

The purpose of the study was to explore attitudes of educators in the United Arab Emirates toward gifted education and twice-exceptional students. One thousand and seventy-five educators (81% general education teachers and 19% teachers of the gifted) participated in this study. Data were collected using an online dual-language survey instrument, which was distributed using the Qualtrics system. Findings of this study indicated that Abu Dhabi teachers have positive attitudes toward gifted education and twice-exceptional students. No significant differences were found in scores for general educators as compared to those for teachers of the gifted. The findings also indicated that Abu Dhabi educators who had no experience of teaching gifted children had a more positive attitude toward them than those who had experience.
La formación artística como medio de transformación social en menores colombianos privados de libertad
Authors: Moreno Cano Antonia , García-Jiménez Gabriela N. , Camarero Cano Lucía
Published: June 2021

El Programa artístico de restauración Social-(PARES) se concibió como una estrategiaeducativa apoyada por el Ministerio de Cultura Colombiano y realizada en el municipio de Piedecuestaen Santander, Colombia. En esta investigación educativa basada en las artes, nos centramos en el casoconcreto del arte terapia como medio de transformación social, desarrollando una metodología mixta.En ella se llevaron a cabo un total de doce talleres sobre cámara estenopeica, ideación y diseño deproducto, a tres grupos, uno de 14 niñas y dos de 15 niños entre los 14 y 18 años, que se encontrabanprivados de libertad o en internamiento preventivo en la Fundación Claret en el momento en el quese realizó este proyecto. El programa quiere constatar que el fomento de estas actividades creativasdesarrolladas en los talleres con estos adolescentes, mejora el desarrollo de sus emociones y habilidades,lo que supone más oportunidades de inclusión social.
El diseño de métodos poéticos y autopoéticos en Educación Artística: articulando metodologías y metodografías
Authors: Caeiro Rodríguez Martín , Callejón Chinchilla María Dolores , Chacón Gordillo Pedro
Published: June 2021

En este artículo nos introducimos en los métodos que los docentes de arte diseñan para guiar eltranscurso de su acción didáctica y alcanzar así los objetivos de aprendizaje. El objetivo general es identificarla importancia que tienen los métodos en el contexto de la Educación Artística y la necesidad de diferenciaren su diseño entre las singularidades del docente y las del discente para abrirse a las posibilidades poéticasy autopoéticas que se dan al crear. Para ello, identificamos los puntos de conexión entre diferentes modelosmetódicos y cómo los procesos de creación posibilitan la personalización y diversificación del método.Asimismo, definimos la metodología incorporando el término metodografía. A través de las indagacionesy comparaciones realizadas en la literatura analizada, se desvela que la personalización del método esposible y deseable identificando la necesidad de entreabrirlo a lo poético y autopoético desde su ideación,algo que ya ha ocurrido en la investigación artística. Concluimos que hablar de metodologías docentesno puede significar que el arte y lo que le es propio en cuanto a su educación se condicionen por modelosdidácticos sistémicos debiendo ser las condiciones poéticas del acto de creación artística lo que definatambién elementos como el método.
Proyectos utópicos. Estrategia artística para potenciar la imaginación y la capacidad creadora, por el beneficio de la sociedad
Authors: Benavides Lidia
Published: June 2021

El artículo trata de la realización de un trabajo colaborativo dentro del contexto de lainvestigación universitaria y docente, donde se plantea la creación de proyectos artísticos utópicos quesean beneficiosos para el individuo y la sociedad en el futuro. Proponemos resolver problemas, descubrire inventar, a partir del detonante de un trabajo que comienza con un ejercicio de visualización creativa,proyectando ideas aparentemente imposibles que puedan hipotéticamente ser resueltas en el futuro.Desarrollamos propuestas a través del lenguaje del arte contemporáneo de manera transdisciplinar quepuedan mejorar el bienestar del individuo y colaborar positivamente en la evolución de la humanidadhacia un futuro mejor. Partimos de precedentes existentes en el arte actual junto con los últimosdescubrimientos científicos y tecnológicos, ponemos atención en algunas de las visiones más optimistasde la filosofía transhumanista, la ciencia-ficción, el subgénero postciberpunk utópico y referentescientíficos de la física moderna, como Michio Kaku (1947); en especial de la cuántica, Max Planck(1858-1947); la psiquiatría contemporánea, Brian Weiss (1944); o la artística, Mariko Mori (1967)Saraceno (1973), Ilya y Emilia Kabakov (1933 y 1945), Harbisson (1984) y Moon (1985).