bluuebunny/crossref_metadata_2025 huggingface dataset:
A Study on GBW-KNN Using Statistical Testing
Authors: Myung-ho Kim, Min Soo Kang Seowon Song, Young Sang Kwak,
Published: April 2021

In the 4th industrial revolution, big data and artificial intelligence are becoming more and more important. This is because the value can be four by applying artificial intelligence techniques to data generated and accumulated in real-time. Various industries utilize them to provide a variety of services and products to customers and enhance their competitiveness. The KNN algorithm is one of such analysis methods, which predicts the class of an unlabeled instance by using the classes of nearby neighbors. It is used a lot because it is simpler and easier to understand than other methods. In this study, we proposed a GBW-KNN algorithm that finds KNN after assigning weights to each individual based on the KNN graph. In addition, a statistical test was conducted to see if there was a significant difference in the performance difference between the KNN and GBW-KNN methods. As a result of the experiment, it was confirmed that the performance of GBW-KNN was excellent overall, and the difference in performance between the two methods was significant.
Design of AI-based gamification platform for effective educational service using child behavior prediction/change
Authors: Nam Hyeon Woo
Published: April 2021

Due to the advancement of advanced technologies such as artificial intelligence, robots, autonomous vehicles, healthcare, virtual reality, augmented reality, etc. and the popularization of smartphones, it stimulates customer interest and leads voluntary participation in order to maximize interactive communication in all industries The gamification strategy incorporating games began to emerge. A representative field that generates results by easily introducing such a gamification strategy is the education industry that seeks to improve the educational effect by utilizing the elements of corporate marketing strategies and games such as challenge, competition, achievement, and reward. Recently, gamification research is being conducted to effectively apply AI and big data, the core technologies of the 4th industrial revolution in all industries. Gamification is actively forming markets in Europe and the US, and it can increase customer loyalty and productivity by applying various roles applied to games in other industries as well as serious games. The purpose of this study is to design and implement a gamification service platform based on artificial intelligence technology and operate the implemented system to expand the area where the gamification service applied to the existing marketing and consulting fields can be used. The designed gamification service platform can be applied to education services that increase learning efficiency by analyzing the predicted learning attitudes of trainees, and through successful research cases, it will be able to provide immersion effect to trainees and teaching method research to educators.
A Study On The Construction Of Virus Infection Area Information System Using Iomt Environment
Authors: Hanyong Choi Sungho Sim,
Published: April 2021

With the recent emergence of novel virus, the importance has been empathized on the epidemiologic investigation of the infection route and control of infected patients. Control system on the viral infections is required since the new virus expression cycle becomes faster which was not previously identified with the spread to other regions and countries. Viral infections cause multiple types of problems such as public health, economic and social ones. In addition, viruses can be spread fast beyond the regions and countries all over the world according to the movements of population. Although national quarantine systems have been established to solve these problems by countries, earlier actions on the novel virus were not satisfactory. IoT environment-based healthcare industry and IT convergence medical service industry have been continuously growing. Healthcare IT, which is the area to deal with information on the personal health and medical cares, devices, systems, and platforms, provides with personal healthcare services. In this article, information system on the virus infected territories is proposed using Internet of Medical Things (IoMT) environment. The proposed study is to establish the information system on the virus infected territories by IoMT-based monitoring of infection symptoms for early reactions against the viral infections. The system can be reacted proactively by detecting the risk factors of community spread from early detections of infected patients under the fast spread situation of viral diseases. The information system on the virus infected territories using IoMT environment can react to the spread of infectious diseases actively upon providing the information of infectious disease symptoms using user information. The proposed system can establish the integrative control system of viral diseases by the prediction module of community outbreak and spread of viral diseases.
NN Search based on Non-uniform Space Partition on Air
Authors: Im Seokjin
Published: April 2021

It is one of most important challenges in information services based on location to support a huge number of clients to process the NN query for a given query point. A scheme of NN query processing based on wireless data broadcasting is an effective way to overcome the challenge. In this paper, we propose an indexing scheme NSPI (Non-uniform Space Partition Index) for quick NN search over wireless data broadcasting. For implementing the aim, we use a non-uniform spatial partition and provide an index based on the partition for equidistance between indexes on the wireless channel. The index scheme enables the clients to process NN quickly by lessening the time for the clients to meet the index on the channel. To show the effectiveness of the proposed scheme, we compare the access time and tuning time of the clients with existing indexing schemes by simulation studies. The proposed NSPI shows shorter access time than the other existing scheme. Also, NSPI outperforms in the aspect of tuning time than the others.
Development Of A Realistic Smart Information Guide Solution To Support Multi-Devices
Authors: Hyu-Chan Kim Mi-Jung Kim,
Published: April 2021

: In this study, a realistic smart information guide solution to support multi-devices was developed. The upload of diverse realistic contents, as well as the support of smart devices with specific characteristics and the management of integrated contents, was made possible. Additionally, it was important to guarantee the quality of the contents (AR, VR) alongside the realistic smart information guide solution. Recently, there have been many positive responses from the expansion on and utilization of services of the fourth Industrial Revolution such as AR technologies, which include image recognition-based information services, and VR technologies, which include hands-on information services using motion recognition sensors. In the future, the development and planning of AR and VR content for visitors and tourists for locations such as museums and exhibition halls will be actively required.
Determination of Appropriate area University Labotatories In Consideration of Extinction Coefficient
Authors: Ha-Sung Kong Seo- Young Kim,
Published: April 2021

This study calculated the appropriate area of university laboratories which shall allow 40 students to evacuate in the shortest time frame when they evacuate at the walking speed per extinction coefficient of smoke to be created upon outbreak of fire.In the case where the floor area was 600㎡, the required safe egress time (RSET) for the total 40 students was 48.3 seconds when extinction coefficient was 0.3m⁻¹, 52.6 sec when extinction coefficient was 0.5m⁻¹, and 54.3 sec when extinction coefficient was 1.0m⁻¹. In the case where the floor area was reduced to 300㎡, half of the first case, the RSET for the total 40 students was 50.0 sec when extinction coefficient was 0.3m⁻¹, 56.4 sec when extinction coefficient was 0.5m⁻¹, and 54.1 sec when extinction coefficient was 1.0m⁻¹, showing the result that RSET of all the students was rather elongated when extinction coefficient was 0.3m⁻¹ and 0.5m⁻¹ respectively due to bottleneck caused by increase in population density even though the exit distance was shortened. In the case where the floor area was increased to 1200㎡, twice of the first case, RSET of all the levels of extinction coefficient was elongated due to increase in exit distance. As result of the experiments with different size of floor areas, the shortest RSET of all the students was found with 540㎡ of floor area. In conclusion, it was found that the RSET for all the people in the lab shall be shortest when the floor area was appropriate.
A Study on the Optimization of High School Buildings for Evacuation Safety: Classroom Layout and Ramps in Korea
Authors: Ha-Sung Kong Chang-Jun Choi,
Published: April 2021

This study used the Pathfinder program to evaluate evacuation safety by assuming evacuation training in high school buildings and changing classroom layout. Analysis of the final evacuation requirements for Scenario 2, which currently has a concentration of classrooms on the third floor of the building, showed that Scenario 2 reduced 29.6 seconds to 173.9 seconds compared to Scenario 1's 203.5 seconds. However, the analysis of Scenario 3, in which 10 classrooms and personnel of three grades were placed equally on the left and right sides of the building, showed that the final evacuation requirements were reduced 3.9 seconds to 170.0 seconds compared to Scenario 2, but there was no significant difference. Scenario 3, which has more the efficiency of school year operation by placing classroom layout on the same floor by grade level than Scenario 2, in which more classrooms and students were placed downstairs. In each scenario, an analysis of the final evacuation requirements showed that the evacuation exit T1 on the left side of the building was 28 seconds or more shorter than T3 on the right side of the building. Therefore, it was analyzed that proper classroom layout and ramp facilities in high school buildings ensure evacuation safety
Transdermal Penetrating Peptide Conjugated Liposomes as Drug Delivery Carrier Comprising Macromolecules
Authors: Soo Hyeon Heo, Beom-Jin Lee, Moon Sam Shin Hyung Jun Lim, Jinseo Lee, Su In Park,
Published: April 2021

: The aim of the study was to investigate a system using liposomes and cell penetrating peptides (CPP) for optimal transdermal delivery of macromolecules. Typical DOPE liposomes were prepared with lipid mixture (DOPE:PC:Chol = 1.5:1.5:2.0, molar ratio) and active materials (Rhodamine B; MW ~480 and Dextran-RITC; MW ~10,000).  CPP-conjugated DOPE liposomescontaining active materials were prepared by conjugating the peptide to DOPE liposomes (DOPE:PC:Chol:DSPE-PEG-Mal = 1.5:1.1:2.0:0.2 or 0.4, molar ratio). Physical properties of both liposomes were evaluated, including particle size and zeta potential. The particle sizes of typical liposome and CPP-DOPE liposome were approximately 100 nm, and the zeta potential values of both liposomes were approximately -25mV and over +11mV respectively. Moreover, cellular uptake efficiency was assessed by flow cytometry (FACS). CPP-conjugated liposomes resulted higher cellular uptake efficiency compared to typical DOPE liposomes, showing higher fluorescent intensity in CPP-DOPE liposomes. In confocal laser scanning microscope (CLSM) studies, both cellular uptake and skin permeation were visually estimated. In the case of Rhodamine B, having a relatively small molecular weight,absorption into the cell was successful, and showed the highest rate of cellular uptake with CPP-DOPE liposomes. Dextran-RITC, a macromolecule with a relatively bigger molecular weight, showed similar results to Rhodamine B. In terms of skin permeation, CPP-DOPE liposomes containing Rhodamine B showed noticeable skin absorption after 4 and 18 hours, and the permeation range was wider and thicker than that with typical liposomes. For Dextran-RITC, with typical DOPE liposome, it was hardly permeable through the skin, but with CPP-DOPE liposomes, on the other hand, the skin permeations after 4 and 18 hours were remarkable. The improved cellular uptake and skin permeation of the CPP-conjugated liposomes are due to the cationic arginine-rich peptide. In vivo studies also proved that the CPP-conjugated liposomes are superior in depigmentation and anti-wrinkle studies than typical liposomes. These results demonstrate that the CPP-conjugated liposomes could also be effective for transdermal drug delivery of antioxidant and anti-aging therapeutics.
Design and Implementation ofReal-time Electrical Stimulation Artifact Suppression based on STM32
Authors: Hojun Yeom Sangsoo Park,
Published: April 2021

A biosignal is used as a control signal for electrical stimulation to restore weakened muscle function due to damage to the central nervous system. In patients with central nervous system damage, sufficient muscle contraction does not occur spontaneously. In this case, applying electrical stimulation can cause normal muscle contraction. However, it is necessary to remove the electrical stimulation artifact caused by the electrical stimulation. This paper describes a system design that removes electrical stimulation artifact in real time using a Cortex-M4-based STM32F processor. The STM32F is a very advantageous MCU for such DSPs, especially because it has a built-in floating point operator. Using STM32F's various high-performance peripherals (12-bit parallel ADC and 12-bit DAC, UART, Timer), an optimized embedded system was implemented.In this paper, the simulated and real-time results were compared and evaluated with the designed fir filter. In addition, the performance of the filter was evaluated through frequency analysis. As a result, it was verified that a high-performance 32-bit STM32F with floating point calculator and various peripherals is suitable for real-time signal processing
A Study of the Business Model of Tencent Group
Authors: Myeong-Cheol Choi, Seung-Jin Kim Xian-Fa Shang,
Published: April 2021

With the development of information technology, Many Internet enterprises have emerged rapidly, and to thrive in the face of fierce competition, it is vital for them to have efficient business models. These business models are a popular focus of research interest. At present, there is still no unified interpretation of the business model system of Internet enterprises. The existing theoretical research examines mainly individual enterprises; there are only a very few studies on the business models of platform enterprises. This study therefore aims to summarize the literature on the basis of existing theories combined with the enterprise reality, through a literature review and case study of the Tencent group of companies in China. This study explores the online trading platform for enterprises and its business model.It is instructive to correctly analyze the Internet business model of enterprises in the third party service platform enterprises.
The Development Strategy of Pechoin in the New Era
Authors: Myeong-Cheol Choi, Zhuo-Cuo Kan Yuan-Zhao Song,
Published: April 2021

With a long history inherited through centuries of business competition, Chinese time-honored brands are a symbol of traditional Chinese culture. As a witness of history, every old Chinese brand is a brand legend, but they arenow gradually declining. According to the latest statistics from the Ministry of Commerce of China, only 160 out ofover 1,600 “Chinese time-honored brands”have beenprofitable since 1993. Many time-honored brands are facing the scourge of brand decline or even extinction, with the remaining brands dying at a rate of 5% per year. In recent years, cosmetics have gradually become an inseparable part of people's daily lives with the increasing income of Chinese residents. China's broad market prospects have attracted many well-known international brands, while many well-known old Chinese brands have been eclipsed in this increasingly fierce market competition. As the saying goes, “An outsider, however strong, should always respects the locals,” foreign brands have overcome the inherent competitive disadvantages of systems, cultural regions, and the like. In contrast, domestic brands have continued to decline under local advantages,the reasons of which are worth discussing. This article uses Pechoin as an example to explore the development strategies of traditional old brands in the new era and explores the causes of the brand’s resurgence in terms of brand innovation and marketing strategy. Its current problems are discussed to provide a way for other traditional brands to rejuvenate.
Effects of Social and Organizational Support on the Satisfaction of International Students and Career Commitment
Authors: Hahm Sang-Woo
Published: April 2021

Perceived organizational support and perceived social support affect individual performance. Their influence may or may not be the same depending on the situation. This study describes the different effects of perceived organizational support and perceived social support on organizational satisfaction and social life satisfaction. Furthermore, it proves that perceived organizational support and perceived social support enhance the organizational (school) satisfaction and social life (life of studying abroad) satisfaction of international students. On addition, through this process, they also increase the career commitment of students. This paper identifies the importance of perceived organizational support and perceived social support necessary to improve the international students' performance, and explain the impact and relevance of their different satisfactions. Through this, this article proposes ways to improve the performance of international students and the discriminatory relevance of perceptions of different objects.
A Study on Stator Design for Electromagnetic Noise Reduction in Washing Machine Motor
Authors: Kim Kwangsoo
Published: April 2021

Received:11 november 2020; Accepted: 27 December 2020; Published online: 05 April 2021

Abstract : For low cost, spoke type ferrite magnet motors with small air gap are using to washing machine. At that time, a noise problem occurs, so a design to reduce the noise is required. In the washing machine, set noise increased due to the reduction of air gap of motor at high speed spin mode. Not only the overall noise, but also the harmonics noises are greatly increased at set. As a result of set noise test and noise analysis through finite elements method, a stator tooth shoe shape in which the magnetic flux changes rapidly is cause of noise. Its shape creates many harmonics of load torque. The harmonics component of the load torque increases the overall noise of the set. The harmonics noise of the set has a large correlation with radial force component as well as the torque ripple. Especially, it is found that the harmonics noise of the set is related to harmonics component of load torque and the harmonics component of the radial force at stator tooth. The noise is reduced by applying the new design of stator tooth shoe that can minimize the change in magnetic flux through the noise cause analysis. Through this research, the harmonics noise as well as overall noise are reduced at small airgap motor. Therefore, it is possible to develop cost reduction motor for washing machine.
Evaluating Second Intermediate’s Arabic Language Textbook in the Light of Quality Standards of School Textbooks
Authors: Khdair Asst. Prof. Wisal Muayad
Published: April 2021

The current study aims at (evaluating the second intermediate grade’s Arabic language textbook). To accomplish this aim, the researcher adopted the descriptive approach (survey). The population included second intermediate Arabic language teachers numbered (373) in the governorate of Babylon in the year 2018_2019. The research sample included (100) teachers, the researcher chose the study sample randomly to represent the study population. The tool of study was a questionnaire included the quality criteria of second intermediate grade Arabic language textbook which was prepared after referring to the subject relevant sources and the previous studies, also, the reliability of the questionnaire was proven reliable by displaying it to a committee of specialists in Methodology.

     The questionnaire included (18) criterion, distributed on six fields which are : objectives, content, methods, activities and it’s aids, evaluation and language of the book and its artistic and printing output. After analyzing the results statistically by using weighted mean, standard deviation and weighed percentage with a 75% validity to evaluate the textbook. After consulting the committee, the researcher came to these results:

The book took the first place in its language and artistic printing output with a value of (3.339) weighted mean and (83.228%) weight percentage.

Methodology took the second place with a value of (3.119) weighted mean and (77.999%) weight percentage.

Evaluation took the third place with a value of (3.081) weighted mean and (77.031) weight percentage.

In the light of these results, the researcher reached to the conclusion that there is a variation in distributing the criteria in the textbook in its both parts, the first one of 9 parts and the second one of 7 parts.

Also, in light of the results, the researcher recommended to find a structured methodology to choose the subjects in the textbook according to textbook criteria.

To complement this study, the researcher suggested that the textbook should be submitted to comprehensive quality criteria.
School Counseling Skills Needed To Activate Distance Learning In Light Of Covid-19 Pandemic
Authors: S AL-halalmeh,
Published: April 2021

The problem and the aim of the study: COVID-19 pandemic had affected all sectors including the educational sector. The educational system shifted from the traditional face to face teaching method to use online means in order to ensure the safety of the students and the social distancing. These changes also affected the roles of the educational members including the school counselors.   Therefore, the study aims to investigate the school counseling skills needed in light of COVID-19.

Research Method: The study relied on the descriptive approach and administrated by a questionnaire to collect the data from the school counselors. The study sample consisted of (400) Jordanian schools counselors from both genders whom chosen randomly to respond to the study tool.

Results: The study found that the main required skills are the cognitive, emotional and humanitarian skills, professional and ethical skills, technical and electronic skills.  The study found that the most needed counseling skills are similar to the traditional education, but due to the shift from the from face to face education to the distance education the most concentration will be on the counselors IT skills.
The Impact of Emotional Intelligence on the Professional Orientations of Secondary School Students in Jordan
Authors: Khasawnah Dr. Awn Ali
Published: April 2021

This study aimed to identify the relationship between emotional intelligence and professional dispositions among secondary stage students in Jordan, and the study relied on the relational descriptive approach, and the study sample consisted of (1500) secondary stage students in Jordan. The emotional intelligence scale and the professional dispositions scale were used to collect data. The results showed that the level of emotional intelligence among secondary school students in Jordan was of a moderate degree. The results indicated that there is a close correlation between professional dispositions and emotional intelligence, whenever a higher level of emotional intelligence, the level of professional dispositions towards motor professions or manual skills were increased, but the relationship decreases with emotional intelligence whenever the professional dispositions go towards software, discoveries, and media matters. In light of the results of the study, a set of recommendations were presented.
Differential diagnosis of bone cysts of long tubular bones of the extremities in children
Authors: Shpileuski Ihar E.
Published: April 2021

BACKGROUND: Bone cysts are characteristic tumor-like bone lesions occurring in childhood. Overall, they represent 21% to 57% of all benign tumors and tumor-like bone lesions in children. Clinical and X-ray symptoms of aneurysmal and simple bone cysts are similar. Like some other, often occurring, benign bone lesions, such as enchondromas, giant cell tumors, fibrous dysplasia, and metaphysical fibrosis defects.
AIM: This study aims to identify the main clinical and instrumental characteristics of simple and aneurysmal bone cysts that allow us to differentiate them from some similar destructive bone neoplasms (enchondromas, giant cell tumors, fibrous dysplasia, and metaphysical fibrosis defects) and to develop indications for various diagnostic surgical interventions.
MATERIALS AND METHODS: A retrospective analysis of the results of the survey of 206 patients aged 3 to 18 years who were treated at our facility from 2000 to 2015 was performed. The features of the diagnostic tactics and their effectiveness were rated.
RESULTS: The main clinical and instrumental diagnostic criteria have been established. They enable the differentiation of bone cysts from some similar benign bone lesions at the pre-morphological stage. The indications for diagnostic surgical interventions have been formulated.
CONCLUSION: The main difficulties in the differential diagnosis of bone cysts and some similar benign bone lesions have been revealed. An algorithm for applying various diagnostic surgical interventions in patients with these diseases has been proposed.
Differential diagnosis of flaccid palsy of the upper extremities in children first months after birth (Literature review)
Authors: Agranovich Olga E. , Ikoeva Galina A. , Gabbasova Elena L. , Petrova Ekaterina V. , Kenis Vladimir M. , Sapogovskiy Andrey V. , Melchenko Evgeniy V.
Published: April 2021

This article analyzes the literature related to flaccid paresis and paralysis of the upper extremities in children during the first months of life. This pathology is a heterogeneous group of diseases with different etiopathogenesis. There are various courses of flaccid paresis and paralysis of the upper extremities in children: damage to the spinal cord, brachial plexus, peripheral nervous system to the level of the brachial plexus, and isolated damage to peripheral nerves. According to the time of occurrence, flaccid paresis and paralysis can be divided into three groups: antenatal, intranatal, and postnatal pathology.
The main mechanism of occurrence of this pathology is intranatal trauma. More rare causes of flaccid paresis and paralysis of the upper extremities are antenatal conditions of dysplastic and traumatic origin, postnatal damage to the peripheral nervous system due to trauma or infection. Congenital contractures of the upper extremities combined with flaccid paralysis are connected with genetically determined diseases of the lower motor neurons and congenital myopathies, intrauterine injuries of the brachial plexus peripheral nerves. This article discusses the issues of topical and differential diagnosis of this pathology, the clinical picture suitable for each period of the childs life, and the prognosis of the disease. This research will be useful not only for neurologists, but also for specialists of related specialties: orthopedists, physiotherapists, and neonatologists for making correct the diagnosis, providing adequate treatment, and predicting its results.
Current aspects of medical care for children with extensive soft tissue injuries (Description of three clinical observations with an analysis of mistakes)
Authors: Bogdanov Sergei B. , Blazhenko Aleksandr N. , Kurinniy Sergei N. , Mukhanov Mikhail L. , Boyko Andrey A. , Karakulev Anton V. , Aladina Valeriya A.
Published: April 2021

BACKGROUND: Injury is an epidemic of the 21st century. It is associated with the increasing high-speed transportation, natural and man-made emergencies, and local wars. All this leads to the appearance of patients with complex, multiple, and not rarely combined injuries. Traumatic skin detachment is the result of high-energy trauma. The treatment of this patient group presents certain difficulties due to the provisional peculiarities of medical care because of the severity of these patients condition of such patients and the underlying muscle tissue destruction.
CLINICAL CASES: This paper presents several clinical examples of successfully treated patients with traumatic skin detachments as a part of polytrauma. The timely correction of the improper treatment procedures enabled avoiding unfavorable results.
DISCUSSION: Treatment of victims with traumatic skin detachment who are in a relatively stable state and the absence of destruction of the underlying muscle tissues should be performed using traditional full layer free skin grafting, according to Krasovitov. In contrast, the treatment of victims with traumatic full-thickness skin detachment in an unstable (decompensated) state and the destruction of the underlying muscle tissues, it is necessary to perform it using the technology of staged full layer free skin grafting with the possible use of a biological coating based on chitosan.
CONCLUSION: The presented clinical examples reflect the importance of developing a unified method of treating injuries at all stages of organizing medical assistance to the victim.
Katı Cisimler Konusuna Yönelik Tasarlanan Teknoloji Destekli Bir Öğretim Sürecinin Değerlendirilmesi
Authors: ALTIKARDEŞ Ekin , YİĞİT KOYUNKAYA Melike
Published: April 2021

Bu çalışmanın amacı 10. sınıf matematik öğretim programındayer alan katı cisimler konusuna yönelik tasarlanan teknoloji destekli bir öğretim sürecinin Kirkpatrick Eğitim Değerlendirme Modeli’ne göre değerlendirilmesidir. Çalışma durum çalışması yöntemi ile desenlenmiştir. Çalışmanın katılımcılarını, Türkiye’deki bir devlet lisesinde öğrenim gören 20 tane 10. sınıf öğrencisi oluşturmaktadır. Çalışma kapsamında katılımcılara katı cisimler konusunda sekiz saatlik teknoloji destekli öğretim uygulanmıştır. Çalışmanın verileri gözlem notlarından, öğrencilerin görüşme sorularına ve katı cisimler konusu ile ilgili açık uçlu ve çoktan seçmeli sorulara verdikleri cevaplardan oluşmaktadır. Verilerin betimsel analiz ve içerik analizi kullanılarak analiz edilmesi sonucunda tüm öğrencilerin modelin tepki, öğrenme ve davranış aşamalarındaki koşulları sağladıkları görülürken; bazı öğrencilerin sonuç aşamasına ulaşamadıkları görülmüştür. Ayrıca uygulanan teknoloji destekli öğretimin tüm öğrencilerin katı cisim konusunu öğrenmelerinde etkili olduğu belirlenmiştir.
Rozwój przestrzenny byłych miast wojewódzkich w Polsce. Studium przypadku Krosna, Przemyśla i Tarnobrzega
Authors: Kociuba Dagmara , Kowalska Edyta
Published: April 2021

Decentralizacja ustroju terytorialnego państwa wywarła ogromny wpływ na rozwój miast na przełomie XX i XXI w. Dotyczy to zwłaszcza byłych stolic województw „zdegradowanych” do funkcji miast na prawie powiatu, przed którymi stanęło wiele wyzwań natury społeczno-gospodarczej, co znalazło odzwierciedlenie m.in. w ich rozwoju przestrzennym. Celem opracowania jest zidentyfikowanie uwarunkowań, cech wspólnych i różnic, a także wskazanie kierunków zmian w procesie rozwoju przestrzennego byłych miast wojewódzkich w Polsce. W pracy odniesiono się do takich zagadnień, jak: 1) wpływ rozszerzenia granic administracyjnych na zmiany struktury funkcjonalno-przestrzennej; 2) stymulanty i destymulanty rozwoju przestrzennego; 3) kształtowanie struktury przestrzennej w nawiązaniu do historycznego rozwoju miast oraz zapisów dokumentów strategiczno-planistycznych; 4) miejskie obszary funkcjonalne; 5) kierunki rozwoju przestrzennego analizowanych miast w przyszłości. Odpowiadają one układowi celów szczegółowych. Efekty niniejszej pracy są dwojakie. W aspekcie implementacyjnym ukazano wpływ transformacji ustrojowej, reform administracyjno-terytorialnych oraz prowadzonej polityki przestrzennej na rozwój miast będących do 1998 r. stolicami województw, tj. Krosna, Przemyśla i Tarnobrzega, położonych obecnie w województwie podkarpackim. W aspekcie poznawczym opracowano modele rozwoju przestrzennego tych miast.
Reaction Times for Esport Competitors and Traditional Physical Athletes are Faster than Noncompetitive Peers
Authors: Luu Anh , Winans Avory , Suniga Rema , Motz Vicki A.
Published: April 2021

Reaction time (RT), time to respond to a stimulus, has been shown to be faster among traditional physical athletes and esport competitors than nonathletes/noncompetitors; however, no comparison has been made between traditional physical athletes and esport competitors. This research examined RTs of healthy 18 to 22 year-old college football athletes, esport competitors, and a control group (n = 12 for each group). RT (ms) to visual (color cue test, ruler drop test), auditory (sound cue test), and tactile stimuli (probe grabbing test) was collected in duplicate. RTs for individual tests and calculated composite RTs were compared between groups by ANOVA and post hoc t-tests. RTs to auditory stimuli were significantly slower than to visual or tactile stimuli (F(140, 3) = 286.5, p = 0.0000). Esport competitors significantly outperformed noncompetitive controls in probe grabbing (p = 0.0175) and ruler drop tests (p = 0.0016). Football players had similar faster RTs in probe grabbing (p = 0.0002) and ruler drop tests (p = 0.0013) compared to controls. Esport competitors also had significantly faster RTs in the color cue test than controls (p = 0.05). Although esport competitors and football athletes had faster composite RTs than controls (p = 0.0042 and p = 0.0104, respectively), RTs between esport competitors and football athletes were not significantly different. A trend was seen in that esport competitors had faster RTs than football athletes in all tests except probe grabbing. Involvement in esports or football is positively correlated with faster RT, although it is not demonstrated whether play improves RT or those with inherently faster RTs tend to excel in activities requiring rapid response.
GALSAN TSCHINAG’IN KERVAN ADLI ROMANINDA HATIRLAMA FİGÜRLERİNİN İZDÜŞÜMLERİ
Authors: Memiş Baytimur Nazlı
Published: April 2021

Galsan Tschinag, edebiyat ve kültür sahasında kendini geliştirmiş bir grup olan Tsengel Tuvalarına mensup bir yazardır. Sayısı otuz beşi aşan şiir, öykü, roman, hatıra vb. edebi türlerde Almanca basılan kitapları birçok farklı dile çevrilmiştir. Yazarın söz konusu eserlerinden birisi de Almanca Die Karawane olarak yayımlanan ve Prof. Dr. Nurettin Demir tarafından günümüz Türkçesine aktarılan Kervan adlı romandır. Tschinag, romanı aracılığıyla özünden uzaklaşıp ona yabancılaşmaya başlayan Tuva toplumunun bugününe, Tuvaların meydana getirdiği imgeler ve geçmişten taşınan hatırlama figürleri ile olumlu yönde etki etmeye çalışır. Kavramlar, semboller ve deneyimler gibi toplumun düşünceler sistemini oluşturan unsurlar arasındaki ilişki, hatırlama figürlerini ortaya çıkarır. Söz konusu figürler, zamana ve mekâna bağlılık, gruba bağlılık ve tarihin yeniden kurulması özellikleri ile ayırıcı bir nitelik kazanır. Tuvaların kültürel ürünleri ile taşınan çok boyutlu izler, yazarın kurguda hatırlama figürlerinden yararlanması sonucunda geçmişten gelerek günü anlamlandırır. Bu çalışma, Kervan adlı romanın kurgusunda hatırlama figürlerinin kullanım şekillerini göstermeyi hedeflemektedir.
Organization of the Public Procurement System in Japan and the Possibility of Applying Experience in Russia
Authors: Fedorova I. Yu. , Pipiya Yu. S.
Published: April 2021

Purpose:is to identify the features of the organization of the Japanese public procurement system and the applicability of the positive experience for Russia. For this, it is necessary to study the organization of the public procurement system in Japan, highlighting the most effective elements and tools; to show the features of the functioning of the system and possible ways of future development; to give a comparative description of the procurement systems of Japan and Russia; to suggest ways to improve the Russian procurement system, using the experience of Japan.

Methods:during the work, general scientific and special research methods were used, including statistical analysis, processing of analytical data, analogies, scientific generalizations, etc.

Results:as a result of the analysis of changes in the legislative framework, on the basis of which public procurement in Japan is regulated, the authors examined the qualitative characteristics of the interconnections of the procurement system participants and assessed the development prospects, incl. Special attention is paid to the content and hierarchy of regulatory legal acts regulating the scope of procurement.

The important link of the author's research was the procedure for organizing procurement in the course of applying various types of procurement procedures, including open, selective and limited procurement methods. A comparative analysis of the procurement systems of Japan and the Russian Federation allowed us to determine the similarities and differences in the organization of the procurement process.

Conclusions and Relevance: as a result of the analysis the validity of the execution of the state order through the competitive procurement system used in world practice has been substantiated. This formed the basis of the targeted approach and the identification of promising directions in the development of the public procurement system in Japan until 2030. The authors highlight the areas that are successfully implemented in the field of public procurement in the Russian Federation. This indicates the positive development of the Russian system, which was created taking into account the best international experience, including Japanese practice. To improve the mechanism of interaction between participants and exchange of experience in the public procurement system, directions have been identified and the most effective tools have been identified.
Financial Mechanism for the Development of Islamic Business in the Russian Federation
Authors: Youssef H.A.
Published: April 2021

Purpose: in modern conditions in Russia there are regions with a large proportion of the Muslim population that implement initiatives for the development of Islamic business, however, the functioning Islamic business model practically does not differ from the traditional model of Russian entrepreneurship, only individual elements and principles, types and forms of entrepreneurial activity based on principles of Sharia, Islamic banking is being promoted more actively. In this regard, the purpose of this article is to study the financial mechanism for the development of Islamic business in the Russian Federation in the context of the implementation of key areas of state support for entrepreneurship at the federal and regional levels.

Methods: the study is based on the use of general scientific methods of induction and deduction, a review of scientific sources; the quantitative assessment is based on the calculation of statistical indicators, in particular: the relative size of the structure of segments of the Islamic economy with comparative studies in the country context of the volume of the halal food market, chain and basic indicators of the series of dynamics of directions of state support for Islamic business and regional levels.

Results: the article analyzes the main directions, tools and institutions for the implementation of state support for Islamic entrepreneurship in foreign practices, indicating the active development of legislative, regulatory and organizational infrastructure, large-scale financing of infrastructure support programs. The article also provides an analytical overview of the development of Islamic business in the Russian Federation. Particular attention in the article is paid to the analysis of federal and regional programs to support Islamic entrepreneurship, which made it possible to identify the features of the implementation of the mechanism of state support.

Conclusions and Relevance: it has been determined that in Russia the most developed segments of Islamic entrepreneurship are the halal industry, the development of which is supported by state programs at the sub-federal level, and the relationship of partner banking. The factors that limit the development of Islamic entrepreneurship in the Russian Federation have been identified: inadequacy of federal programs for financing Islamic business; the local nature of support for Islamic entrepreneurs within the framework of regional programs («point» principle).
Impact and Consequences of the COVID-19 Pandemic: Socio-Economic Dimension
Authors: Shcherbakov G. A.
Published: April 2021

Purpose: the active development of the coronavirus pandemic and measures to counter it by national authorities and international organizations have already influenced the perception of reality by the inhabitants of the planet. There is a natural desire to understand: everything that is happening is a temporary phenomenon, the overcoming of which will return our life to its former course, or the transformations taking place in society are of a long-term nature, and humanity is in the process of forming qualitatively new parameters of existence, which can become a "new normality". The main objective of the study is to conduct a qualitative analysis of changes in the socio-economic sphere associated with the spread of the COVID-19 pandemic in the world. The goal is to identify social, economic and institutional processes that can influence the life of society.

Methods: a set of methods of practical analysis and theoretical research was used, including: logical, system and abstract methods.

Results: the study solves the main task of this work - to conduct a qualitative analysis of the transformations in the socio-economic sphere associated with the spread of the COVID-19 pandemic in the world. On the basis of factual and statistical information, the features of the current situation are identified, as well as the processes and trends of development that can lead to fundamental, long-term changes in the socioeconomic life of society.

Conclusions and Relevance: a qualitative analysis of the impact of COVID-19 on the social and economic spheres of society shows that the impact of the coronavirus pandemic has crossed the boundaries of the exclusive medical and biological perception of this phenomenon and is increasingly acquiring an economic and socio-humanitarian dimension.
NUMERICAL INVESTIGATION OF NATURAL CONVECTION WITH HEATED TUBES IN TUNNEL GREENHOUSE
Authors: SLATNİ Yassine , DJEZZAR Mahfoud , MESSAİ Tarek
Published: April 2021

In this research, a numerical study was carried out on heat transfer by natural convection, in a closed tunnel greenhouse, in the range of the Rayleigh number (103≤Ra≤106). Were considered in the study, the number of heating tubes used (1≤Nt≤7), which were equidistant inside the greenhouse volume, when the bottom at an average temperature and cold Roof. The governing equations written in a bicylindrical coordinates were discretized using the finite volume method and vorticity-stream function formulation; the resulting algebraic equations were solved using successive over relaxation method (S.O.R). First, the effect of the Rayleigh number on heat transfer was examined for a fixed number of tubes as reference (Nt = 3) and the number of tubes was varied to investigate the influence on heat transfer in the greenhouse. Finally, the results obtained were summarized in the form of isotherms and streamlines, and for the average Nusselt number profile; in addition to the horizontal and vertical velocities and temperatures. However, in the reference case, for low Rayleigh numbers, the heat transfer is dominated by pure conduction.With the increase of the Rayleigh number and the number of tubes Nt, the natural convection becomes more dominant and the heat transfer increases, and in general the heat transfer increase with the increasing number of tubes.
THERMOECONOMIC ANALYSIS AND MULTI-OBJECTIVE OPTIMIZATION OF AN INTEGRATED SOLAR SYSTEM FOR HYDROGEN PRODUCTION USING PARTICLE SWARM OPTIMIZATION ALGORITHM
Authors: KEYKHAH Sajjad , ASSAREH Ehsanolah , MOLTAMES Rahim , TAGHİPOUR Abbas , BARATİ Hasan
Published: April 2021

This study aims to investigate the hydrogen production process using an integrated system based on solar energy. This system includes an evacuated tube collector to absorb solar energy as input energy of the system. A parametric analysis was conducted to determine the most important design parameters and evaluate these parameters' impact on the system's objective functions. For identifying the optimum system conditions, multi-objective optimization was performed using particle swarm optimization (PSO) algorithm. The results obtained from the parametric analysis show that an increment in the collector mass flow rate and the turbine inlet temperature, as well as a decrement in the collector area and the evaporator inlet temperature, results in improving the system exergy efficiency. Furthermore, the optimization results demonstrate that the exergy efficiency of the system can be improved from 1% to 3.5%; however, this enhancement in exergy efficiency of the system leads to increase the system costs from 20$/h to 26$/h, both at optimum states. At the optimum point, the average values for other performance parameters affecting the objective function including total output power production, cooling capacity, and hydrogen production rate are obtained as 24.24 kW, 47.07 kW, and 218.56 g/s, respectively.
Independent Consultation and Investigation Mechanism: 2020 Annual Report
Authors:   Independent Consultation and Investigation Mechanism
Published: April 2021

2020 was an unprecedented year for everyone, because of the COVID-19 pandemic. MICI experienced this reality first-hand and was dedicated to reducing the disruptions in the operation of the mechanism due to the new circumstances, particularly in case management and accessibility. In numbers, MICIs complaint portfolio remained stable in 2020, with minimal variations compared to previous years. The Mechanism handled 21 complaints in total (two and three complaints less than in 2019 and 2018, respectively), 10 of which were new cases received in 2020. This report presents the management of each of these cases, as well as the main results in promoting access, learning and institutional strengthening.
Aplikasi Amelioran Tanah dan MycoSilvi pada Falcataria sp. dan Ochroma bicolor Rowlee. untuk Reklamasi Lahan Pascatambang Pasir Silika
Authors: Munawaroh Khoryfatul , Budi Sri Wilarso , Pamoengkas Prijanto
Published: April 2021

Open pit mining of silica sand causes some soil degradations and environmental impacts, such as lowering soil pH, lowering soil fertility, soil compaction, and toxicity of micronutrients such as Al, Fe, and Zn. The aim of this study was to analyze the soil properties of land post mining of silica sand and to analyze the growth response of Falcataria sp. and Ochroma bicolor by combination of soil ameliorant and MycoSilvi. The experimental design was split plot design of two treatment factors, MycoSilvi and soil ameliorant. The main plot is MycoSilvi that consist of two levels (MycoSilvi and without MycoSilvi). The subplot is soil ameliorant that consisted of six levels (compost 0 g, lime 0 g; compost 0 g, lime 1.56 g; compost 0 g, lime 3.12; compost 9 g, lime 0 g; compost 9 g, lime 1.56 g; compost 9 g, lime 3.12 g). The results showed that the soil ameliorant (lime 3.12 g and compost 9 g) and MycoSilvi was the best treatment to increase height, diameter, biomass, and mycorrhizal colonization of Falcataria sp. and O. bicolor.

 

Keywords: MycoSilvi, reclamation, soil ameliorant