bluuebunny/crossref_metadata_2025 huggingface dataset:
THE ROLE OF CITIZEN-CENTRICITY AND REPUTATION RESOURCES OF THE REGION IN THE FUNCTIONING OF THE MODERN PUBLIC ADMINISTRATION SYSTEM
Authors:   Lomonosov Moscow State University, Moscow, Russia, Smirnova V. V.
Published: December 2022

Intangible resources of regional development are of particular importance in the context of the crisis of the economy and management, as well as increasing the level of competition for resources between regions. A reputation resource as a set of characteristics that affect the positioning of an entity in the public sphere, on the basis of which counterparties can form an opinion about the expediency and risks of interacting with it, is closely related to citizen-centricity. The latter is one of the main factors forming a reputation. Together with other factors, citizen-centricity has a significant impact on the interaction of the state, citizens and business, which makes it necessary to consider the most effective practices in this area to improve the quality of public administration. The purpose of the study is to identify the main factors of the formation of a reputation resource, as well as the formation of recommendations for the introduction of a citizen-centric approach in public administration based on the study of foreign and domestic experience. For this purpose, the article examines scientific research by Russian and foreign authors on the formation and evaluation of reputational resources, compares regulatory legal acts and practices of leading countries on the implementation of public administration practices that meet the citizen-centric approach. The main factors forming a reputation are: citizen-centricity, public positioning and socio-economic conditions. Regarding the foreign experience of implementing a citizen-centric approach in public administration, it is concluded that there is a wide diversification of methods for implementing this approach. It is related to the profiling of citizens and the maintenance of a register of life situations, the design and reengineering of services, motivation and KPIs of civil servants. Russia has already established a regulatory framework for the development of a citizen-centric approach in public administration, there are pilot regions for the introduction of citizen-centricity in various services. However, there is a lack of framework requirements for the introduction of a citizen-centered approach in terms of motivation of civil servants and KPIs of their activities in Russian practice. This aspect leaves room for the introduction of best practices in the field of citizen-centricity and is an incentive for further research in this area.
INTELLIGENT MODEL FOR PREDICTING THE TRAFFIC INTENSITY OF VEHICLES AT THE INTERSECTION
Authors:   Orenburg State University, Orenburg, Russia, Bolodurina I. P. , Antsiferova L. M. ,   Orenburg State University, Orenburg, Russia, Grishina L. S. ,   Orenburg State University, Orenburg, Russia
Published: December 2022

The active development of the fleet of vehicles contributes to an increase in the congestion of transport networks and requires the construction of new systems for determining the places of congestion, as well as the development of ways to solve the existing problems. A special place in this area is occupied by an early assessment of the condition of transport networks, which allows timely measures to be taken to modify them. In this regard, research in the field of forecasting the main indicators of traffic flow in order to identify congestion of transport networks has become highly relevant. The use of data mining technologies, including methods of multidimensional linear regression, will make it possible to build predictive models for studying the characteristics of traffic flow. Aim. To build a model for predicting traffic intensity at an intersection using machine learning methods for effective decision-making when managing traffic flow. The scientific novelty of this study lies in the development of a multidimensional regression model for predicting traffic intensity, considering the control of retraining based on open data on observations of the number of vehicles at four different sections of the intersection. Methods. A multidimensional linear regression model was used to predict the intensity of traffic flow. Ridge, Lasso and ElasticNet regularization approaches were used as methods to improve the forecasting efficiency. Results. A model for predicting the intensity of traffic flow is constructed. As part of the experimental study, an assessment of the effectiveness of the use of regularization methods was carried out, as well as a comparative analysis of the accuracy of forecasting the model based on the initial and normalized data. Conclusion. The smallest root-mean-square error on the test data was shown by the multidimensional linear regression model with Ridge regularization. The developed model makes it possible to predict the number of vehicles passing per unit of time with an average quadratic error equal to 0.638. The obtained results of the study will allow early diagnostics of the occurrence of congestion of transport networks to optimize the movement of vehicles at various intersections of the UDS. The results of the study are of high practical importance, as they can be implemented into existing traffic management systems for effective decision-making in traffic flow management. The direction of future research includes the practical testing of the predictive model in real conditions, as well as the consideration of ensemble methods of machine learning to improve the accuracy in predicting the main indicators of the traffic flow.
EXPERIMENTAL CONFIRMATION OF THE PROJECT PERIOD TO REPLACE THE ENGINE OIL OF THE KAMAZ R6 ENGINE
Authors:   Public Joint Stock Company KAMAZ, Naberezhnye Chelny, Russia, Nazarov F. L. , Teterin M. F. ,   Public Joint Stock Company KAMAZ, Naberezhnye Chelny, Russia, Khannanov M. D. ,   Public Joint Stock Company KAMAZ, Naberezhnye Chelny, Russia, Muginova A. M. ,   Public Joint Stock Company KAMAZ, Naberezhnye Chelny, Russia, Kalimullin R. F. ,   Orenburg State University, Orenburg, Russia, Kulakov A. T. ,   Naberezhnye Chelny Institute of Kazan (Volga Region) Federal University, Naberezhnye Chelny, Russia
Published: December 2022

The article is devoted to solving the actual scientific research task of confirming the design extended period for replacing engine oil for the advanced automobile diesel engine of the KAMAZ R6 family. The main goal of scientific research is to improve of consumer properties and efficiency of vehicle operation by increasing the frequency of their maintenance. The solution of the problem within the framework of this article is to assess the performance of a particular brand of modern high-tech engine oil from long-term operation and determine the period for its replacement in engines of the KAMAZ R6 family. The methodological apparatus for solving this problem was based on the developed algorithm for allowing motor oils to be used in KAMAZ engines. Based on the results of a complex of laboratory, bench and operational tests, the performance of the Lukoil Avantgarde Professional ACEA E4 / E7 SAE 5W-30 engine oil in the KAMAZ R6 family engines was positively assessed, and the declared replacement period of 150 thousand km was confirmed. The scientific novelty of the results obtained lies in the fact that new specific dependences of the quality indicators of modern high-tech engine oil Lukoil Avantgarde Professional ACEA E4 / E7 SAE 5W-30 on long-term operation during bench and operational tests of the KAMAZ R6 family diesel engine have been established. The theoretical value for the development of the branch of science “Operation of road transport” lies in the fact that the identified patterns contribute to the study of the efficiency and quality of operating materials, the patterns of changes in characteristics, performance indicators, the determination of consumption standards and rational service life of operating materials. The positive effect of this is the improvement of the processes of organizing the maintenance of vehicles, which helps to ensure their operational reliability and increase the efficiency of operation. The direction of further scientific research is the solution of the following complex problem - to investigate the patterns of consumption of engine oil and changes in the technical condition of the diesel engine of the KAMAZ R6 family from operating time to justify the optimal frequency of vehicle maintenance.
FILOSOFIA DA LINGUAGEM:
Authors: Pereira Francisco Caetano , Alvares dos Prazeres Karla Luzia , Alvares dos Prazeres Paulo Joviniano
Published: December 2022

O presente trabalho tem por objetivo apresentar e contextualizar a teoria da norma jurídica a partir da filosofia da linguagem formulada por Tercio Sampaio Ferraz Junior. O autor propõe uma abordagem pragmática da norma jurídica, para determinação de um sistema explicativo do comportamento humano enquanto regulado por normas. A decidibilidade de conflitos norteia todo o modelo jurídico proposto por Ferraz Jr. A metodologia utilizada neste trabalho está na base logica dedutiva, com base em analise bibliográfica.

Palavras-chave: norma jurídica; discurso normativo; pragmática jurídica; validade; dogmática jurídica
Analisis SWOT Sebagai Landasan Untuk Membangun BumDes yang Berdaya Saing
Authors: Puspitasari Dyah Ayu Kunthi , Zulmy Afrizal Iqbal
Published: December 2022

Abstrak

Pendirian Badan Usaha Milik Desa (BUMDes) yang diprakarsai Pemerintah Pusat dan ditindaklanjut oleh Pemerintah Daerah Jombang sehingga pada tahun 2015 terbentuklah Badan Usaha Milik Desa Sumber Makmur dengan jenis usaha simpan pinjam. Seiring berjalannya waktu BUMDes Sumber Makmur memperluas usaha antara lain : unit usaha fotocopy, jasa pembayaran online, jual beli atk dan penyewaan alat berat serta merencanakan usaha membuat wahana wisata dan pujasera , melakukan kerjasama dengan pihak pabrik PT Pei Hai terkait pengadaan seragam karyawan PT Pei Hai. Untuk itu penulis beserta mahasiswa yang sedang melakukan Kuliah Kerja Nyata di Desa Jogoloyo melakukan kegiatan pembenahan administrasi, melakukan , analisis SWOT, pembenahan laporann keuangan BUMDes, dan sosialisasi Digital Marketing. Kegiatan tersebut telah diselesaikan dengan baik oleh penulis bersama tim mahasiswa KKN dalam kurun waktu kurang lebih 30 hari (satu bulan).

Kata Kunci : Bumdes Sumber Makmur, Analisis SWOT, Digital Marketing.
Strategi Gotong Royong Untuk Keberlangsungan Badan Usaha Milik Desa (BUMDes) Sari Artha Pulosari, Bareng
Authors: Nafidah Lina Nasihatun , Wilujeng Tri
Published: December 2022

Abstrak

BUMDes mempunyai pengaruh penting untuk dapat mengoptimalkan pemberdayaan ekonomi masyarakat, meningkatkan kemandirian desa dan memperkuat perekonomian di desa Pulo Sri Kecamatan Bareng. BUMDes Sari Arta hanya melakukan unit kegiatan usaha yang bergerak di bidang jasa, dan perdagangan umum. Selama ini permasalahan yang timbul adalah unit usaha yang bergerak di bidang perdagangan tidak bisa berjalan dengan lancar dikarenakan kalah saing dengan toko perancangan yang ada di sekitar BUMDes dan pihak BUMDes belum menerapkan digital marketing untuk memasarkan dan memperkenalkan produknya ke masyarakat. Adanya pengabdian masyarakat ini diharapkan bisa memberikan kontribusi dalam pengetahuan dan pemahaman pihak BUMDes tentang digital marketing. Selain hal tersebut dengan adanya pengabdian masyarakat ini diharapkan dapat mengembangkan potensi wisata yang ada di desa Pulo Sari yang mampu memperkuat perekonomian desa.
Penguatan Badan Usaha Milik Desa (BUMDes) Menuju Jombang Berkarakter dan Berdaya Saing
Authors: Pujiati Lilik , Nasrulloh Achmad
Published: December 2022

Abstrak

Badan usaha milik desa atau BUMDes merupakan lembaga/badan perekonomian desa yang berbadan hukum. BUMDes dikelola oleh masyarakat dan pemerintah desa dalam upaya memperkuat perekonomian desa dan dibentuk berdasarkan kebutuhan dan potensi desa. Badan Usaha Milik Desa atau BUMDes merupakan pilar kegiatan ekonomi di desa yang yang diharapkan dapat menjadi tonggak peningkatan ekonomi di daerah otonomi tingkat desa. BUMDes Mekar Jaya yang berada di Desa Mojokambang, Kecamatan Bandarkedungmulyo, Kabupaten Jombang mulai berdiri pada tahun 2015. BUMDes Mekar Jaya bergerak di bidang usaha perdagangan (penyedia fotocopy dan alat tulis kantor) dan perkreditan barang syariah. Permasalahan yang dihadapi oleh BUMDes Mekar Jaya adalah : 1) Kurangnya pemahaman mengenai penggunaan laporan keuangan yang sesuai standar akuntansi keuangan dengan pemanfaatan aplikasi microsoft excel, 2) Kurangnya pemahaman tentang strategi pemasaran produk online yang baik dan benar, dan 3) Belum dilakukannya pembenahan struktur organisasi yang terbaru sesuai PP No.11 Tahun 2021. Maka berangkat dari permasalahan tersebut, tim penulis melakukan kegiatan Pengabdian Kepada Masyarakat (PKM) dengan dibantu mahasiswa. Dari hasil PKM diperoleh manfaat yaitu: 1) Tersusunnya laporan keuangan BUMDes Mekar 2) Terciptanya akun sosial media Shopee dan Facebook untuk pemasaran online, dan 3) Pembenahan struktur organisasi BUMDes sesuai dengan PP No.11 Tahun 2021.

Kata kunci: BUMDes Mekar Jaya, Mojokambang, PKM
Penerapan E-Commerce untuk strategi pemasaran produk pertanian pada Badan Usaha Milik Desa (Bumdes) Sumber Makmur
Authors: Hidayati Nurul , Putra Oky Arianto
Published: December 2022

Abstrak

Pendirian Badan Usaha Milik Desa (BUMDes) ini bernama Sumber Makmur Berdasarkan Rapat Musyawarah BPD No 01 Tanggal 24 Pebruari Tahun 2015. BUMDes berkedudukan di Desa Jombatan Kecamatan Kesamben Kabupaten Jombang Propinsi Jawa Timur. Bumdes Sumber Makmur Bertujuan untuk melayani anggota masyarakat yang berdomisili di Desa Jombatan dan bergerak di bidang Pertanian bagi masyarakat umum khususnya para petani. Badan Usaha Milik Desa (BUMDes) Sumber Makmur dengan jenis usaha pertanian. Dalam perkembangannya, pengelolahan usaha pertanian di Badan Usaha Milik Desa (BUMDes) Sumber Makmur sudah cukup baik namun ada beberapa produk yang belum dikembangkan. Untuk itu penulis bernama team mahasiswa yang sedang melaksanakan Kuliah Kerja Nyata (KKN) di Desa Jombatan melakukan kegiatan pembenahan kelengkapan di Badan Usaha Milik Desa (BUMDes) Sumber Makmur, antara lain : 1. Pembuatan Marketplace facebook, 2. Pembuatan media blog. Kegiatan tersebut telah diselesaikan dengan baik oleh penulis bersama team mahasiswa KKN. Dengan adanya perdagangan elektronik (e-commerce) ini maka pelanggan dapat mengakses dan melakukan pemesanan dari berbagai tempat. Mengingat era teknologi canggih saat ini.

Kata kunci : BUMDes Jombatan, Sumber Makmur, E-Commerce
Menstrüel ağrı şiddetinin vücut farkındalığı, fiziksel aktivite düzeyi ve duyu organizasyonu üzerine etkisi
Authors: BARAN Emine , EMEKCİ Tuğba
Published: December 2022

Amaç: Bu çalışmanın amacı kadınlarda menstrüel ağrı şiddetinin vücut farkındalığı, fiziksel aktivite düzeyi ve duyu organizasyonu üzerine etkisini incelemekti. Yöntem: Çalışmaya 18-30 yaş arası menstrüel ağrısı olan kadınlar dahil edildi. Katılımcılar görsel analog skalasına göre hafif (n=47), orta (n=28) ve şiddetli (n=18) menstrüel ağrı grubu olmak üzere toplam üç gruba ayrıldı. Katılımcılara Vücut Farkındalığı Anketi (VFA) ve Uluslararası Fiziksel Aktivite Anketi–kısa form (UFAA) uygulandı. Katılımcıların somatosensoriyel, görsel ve vestibüler duyu organizasyonları bilgisayarlı dinamik postürografi ile incelendi. Tüm değerlendirmeler menstrüasyon sırasında uygulandı. Bulgular: VFA ve UFAA açısından; şiddetli ağrı grubu hafif ve orta şiddetli ağrı gruplarından ve orta şiddetli ağrı grubu ise hafif ağrı grubundan daha düşük puana sahipti (p<0.05). Şiddetli ağrı grubu hafif ve orta şiddetli ağrı grubundan ve orta şiddetli ağrı grubu hafif ağrı grubundan daha düşük antero-posterior somatosensoriyel test değerlerine sahipti (p<0.05). Şiddetli ağrı grubu hafif şiddetli ağrı grubundan daha düşük antero-posterior vestibüler test değerlerine sahipti (p<0.05). Şiddetli ağrı grubu hafif ve orta şiddetli ağrı grubundan daha düşük medio-lateral somatosensoriyel test değerlerine sahipti (p<0.05). Şiddetli ağrı grubu hafif ağrı grubundan ve orta şiddetli ağrı grubu hafif ağrı grubundan daha düşük medio-lateral vestibüler test değerlerine sahipti (p<0.05). Sonuç: Ağrı şiddeti arttıkça, VFA, UFAA ve somatosensoriyel ve vestibüler duyu organizasyonu test sonuçlarının düştüğü görüldü. Menstrüel ağrı ile baş etmek için vücut farkındalığını artıran fiziksel aktivite yöntemlerinin tercih edilmesi, menstruel ağrıyı azaltmak ve duyu organizasyonunu iyileştirmek için daha etkili sonuçlar ortaya koyabilir.
Untangling Social Reminiscing and Emotional Support
Authors:   , Burgess Tessa
Published: December 2022

Different researchers prioritise different conversational processes as core to our relationships and our wellbeing. Two such processes are social reminiscing and emotional support. Social reminiscing and emotional support share conceptual and functional similarities, but previous research has not systematically compared them. Could they be the same? This thesis sought to disentangle social reminiscing from emotional support in several ways. In Chapter 2, participants imagined stressful scenarios (Study 1, N = 381) or recalled stressful and happy past events (Study 2, N = 380), and reported on the social reminiscing and emotional support that they desired (Study 1) or received (Study 2) from their conversation partner. Study 1’s results indicated that social reminiscing and emotional support are statistically distinct processes: People desired more reminiscing when they felt closer to the support provider, but desired consistently high levels of emotional support, regardless of how close they felt to the support provider. Study 2 produced more mixed results, finding no evidence that closeness changed how much reminiscing or emotional support was recalled in real life. Chapter 3 developed and validated a dyadic observational coding scheme for social reminiscing with a sample of people who discussed past events (a memory-directed context; Study 3, N = 51 dyads) and a sample of romantic partners who discussed future goals (i.e., a support-directed context; Study 4, N = 100 dyads). Results provided further evidence that social reminiscing and emotional support are distinct processes that work in tandem within a conversation. Finally, Chapter 4 included an observational study (N = 66 dyads) which examined the links between people’s depressive symptoms, dyadic patterns of social reminiscing and emotional support in conversations, and relational wellbeing. No evidence emerged linking depressive symptoms with patterns of social reminiscing and emotional support. However, discriminant findings indicated that social reminiscing predicted greater satisfaction with the conversation, but not perceived partner responsiveness. Conversely, emotional support predicted greater perceived partner responsiveness, but not satisfaction. Altogether, this thesis presents the first evidence that social reminiscing and emotional support can be statistically distinguished and are each a unique feature of conversations. Practically, this research suggests that in a real-world conversation, people respond qualitatively differently to past-tense and present-tense emotions. More inter-disciplinary work between relationship scientists and autobiographical memory researchers will be fruitful because their different theories are complementary.
Application of Hidden Markov Models in Stock Forecasting
Authors: Yu Menghan , Wang Panji , Wang Tong
Published: December 2022

In this paper, we tested our methodology on the stocks of four representative companies: Apple, Comcast Corporation (CMCST), Google, and Qualcomm. We compared their performance to several stocks using the hidden Markov model (HMM) and forecasts using mean absolute percentage error (MAPE). For simplicity, we considered four main features in these stocks: open, close, high, and low prices. When using the HMM for forecasting, the HMM has the best prediction for the daily low stock price and daily high stock price of Apple and CMCST, respectively. By calculating the MAPE for the four data sets of Google, the close price has the largest prediction error, while the open price has the smallest prediction error. The HMM has the largest prediction error and the smallest prediction error for Qualcomm’s daily low stock price and daily high stock price, respectively.
Research on the Impact of Financial Development on Industrial Structure Upgrading: Evidence from China’s Provincial Panel Data
Authors: Wang Lina
Published: December 2022

On the basis of analyzing the mechanism of the impact of financial development on industrial structure upgrading, this paper comprehensively considers the state of the industrial structure among provinces from three dimensions: rationalization, optimization, and equalization. This research finds that financial development promotes the rationalization and optimization of industrial structure but has no significant effect on the equalization of industrial structure.
Discussion on Local Asset Management Companies’ Approach to Revitalizing Uncompleted Real Estate Projects: Taking ZS Asset Management Company as an Example
Authors: Yao Xicheng
Published: December 2022

In recent years, with the vigorous development of the real estate market, the price and scale of real estate have been growing explosively year by year. At the same time, the continuous macro-control of the state and the debt of real estate enterprises are both thundering. The high turnover and leverage operation mode is challenged, and uncompleted real estate projects are constantly emerging. Uncompleted residential buildings are considered scars to developers or cities where these projects are located. If this issue can be solved, uncompleted residential building projects can be revitalized, and the parties involved will also benefit from it. Asset management companies play a key role in the revitalization of uncompleted real estate projects by injecting new vitality into these projects and obtaining relevant policy support from the local government for the pain points and difficulties in these projects, thus promoting the revitalization of uncompleted projects. In order to discuss the approach taken by local asset management companies to revitalize uncompleted real estate projects, this paper takes ZS Asset Management Company as an example.
Optically Transparent Patch Antennas Using Saltwater for WLAN Applications
Authors: Nguyen Tien Dat , Choi Jung Han , Jung Chang Won
Published: December 2022

This paper presents the design, fabrication, and measurement of a novel transparent patch antenna using saltwater with high-opticaltransparency applications for wireless local area networks (WLANs) at 2.4–2.5 GHz. The most important reason for using saltwater for transparent antenna applications is its superior average optical transparency (OTav >90%) compared to other typical transparent electrodes, such as indium tin oxide (ITO; OTav >80%) or metal-mesh film (MMF; OTav >60%). This study designs three types of antennas: an antenna with a conductive part made of copper sheet (CS) for both the radiator and ground plane (case 1) to compare the performance with two types of proposed transparent antennas that use saltwater as the conductive parts; an antenna with saltwater for the radiator and MMF for the ground plane (case 2); and an antenna with saltwater for both the radiator and ground plane (case 3). The case 1, case 2, and case 3 antennas have peak gains of 6.87, 4.4, and 1.91 dB, respectively, and have corresponding radiation efficiencies of 93.5%, 62%, and 34%. To the best of our knowledge, this is the first demonstration of a transparent patch antenna using saltwater.
Copper(II) complexes with thioether based SNS pincer ligand: Synthesis, characterization and antiproliferative activity
Authors: Sogukomerogullari H.G. , Akkoc S.
Published: December 2022

In this study, the SNS pincer type 2,6-bis[[(4-bromophenyl)thio]methyl]pyridine ligand (L) (1) and its novel Cu(II) complexes ([Cu(k3-L)(X)2]·nH2O (X=Cl, SCN, ClO4)) were synthesized and characterized by using NMR, UV-Vis, FT-IR spectroscopy, mass spectrometry, molar conductivity and elemental analysis techniques. The synthesized Cu complexes exhibited a triangular bipyramidal structure. The compounds were found to have non-electrolytic behavior. The antiproliferative activities of these compounds and a positive control drug were tested in three different cancer cell lines including colon, lung and liver. The results obtained using the MTT method showed that the three metal complexes prepared from the ligand containing the pyridine nucleus were found to have higher antiproliferative effects in all tested cancer cell lines compared to the positive control drug cisplatin.
Deteksi Pengaruh Financial Stabilty, External Pressure, dan Financial Targets terhadap Financial Statement Fraud
Authors: Rahmalia Nisa Riski , Eriyanti Elit , Yani Najunda Dewa , Kabib Nur
Published: December 2022

The purpose of this study was to determine the effect of financial stability, external pressure and financial targets on fraudulent financial statements in manufacturing companies. In this study, the population of manufacturing companies listed on the Jakarta Islamic Index 70 (JII 70) for the 2019-2021 period is used. In the sampling process, the technique used is purposive sampling by producing 16 samples of companies. This study uses data analysis in the form of descriptive statistics, classical assumption test, and hypothesis testing. The results showed that partially the financial stability variable had an influence on financial statement fraud. Meanwhile, external pressure variables and financial targets have no effect on financial statement fraud. Simultaneously, the variables of financial stability, external pressure, and financial targets have an effect on fraudulent financial statements.
Vlasov-Poisson-Fokker-Planck in Fractional Sobolev-Lebesgue Spaces
Authors: Chen Jingchun , He Cong
Published: December 2022

In this paper, we are concerned with the local well-posedness of the Vlasov-Poisson-Fokker-Planck equation near vacuum in the fractional Sobolev-Lebesgue space for the large initial data. To achieve this goal, we mainly adopt the energy method. In order to obtain the energy estimate, we establish an L2-Lq estimate related to the electronic term, and take advantage of the commutator estimates as well.
Marine Resource Recovery Following the COVID-19 Event in Southern Thailand
Authors: Somchuea Sirirat , Jaroensutasinee Mullica , Jaroensutasinee Krisanadej
Published: December 2022

This study investigated coral and reef fish recovery following the COVID-19 event between low and high environmental disturbance reefs at Racha Yai Island, Southern Thailand. Three and four 50-m permanent line transects were set at low and high environmental reefs to collect the percent of live coral cover, fish diversity and abundance, and fish trophic-functional groups based on diet and habitat use. Our results showed a significant rise in the percentage of live coral cover, the number of individual fish, the number of fish species, and species richness at both bays following the COVID-19 lockdown due to a crucial reduction in human activities on the reef. In addition, there were increases in the number of corallivore fishes belonging to Chaetodontidae and Pomacentridae families and a reduction of omnivorous fish at the fish-feeding tourist attraction reefs due during the COVID-19 lockdown due to reducing fish-feeding tourism. This indicated that restricted human activities and reduced anthropogenic stress on a coral reef may have substantial short-term impacts on reef fish diversity. Our insights could help designate guidelines to manage tourist impacts on coral reefs and aid in their prolonged persistence. Doi: 10.28991/CEJ-2022-08-11-011 Full Text: PDF
Enhanced Torsion Mechanism of Small-Scale Reinforced Concrete Beams with Spiral Transverse Reinforcement
Authors: Mahmoud Shereen , Youssef Ahmed , Salem Hamed
Published: December 2022

The nonlinear torsional behaviour of small-scale reinforced concrete (RC) beams with continuous staggered spiral as transverse reinforcement stirrups is experimentally investigated. Twelve miniatures RC beams were tested under torsion load considering the closed shape of stirrups and compared with continuous staggered spiral ones. All miniatures beams were scaled down to be one-eighth the prototype beam size. The main parameters considered in this research are stirrup spacing and its configurations. Small scale RC beams were taken into account in the existing study because of their construction simplicity and financial feasibility. Mortar without coarse aggregate was applied instead of concrete to reduce the size effect of applying small scale models. Ongoing research trials have been carried out to obtain an efficacious approach to boost torsion failure mechanisms because brittle torsion failure of RC structural elements should be avoided. This study emphasized boosted torsion capacity, dissipated energy, and helical crack propagation. During testing, the primary cracking torsion moment, ultimate torsion moment, peak twist angle, and failure mechanism of the beams were inspected. The use of spiral stirrups showed great enhancement of the torsional behaviour of samples. It was observed that using spiral stirrups rather than closed stirrups could result in a substantial increase in torsion capacity and dissipated energy of 87.7% and 89.8%, respectively. As a result, the predicted capacities of the RC beams prototype were estimated in detail, taking account the scale down factor implemented by the authors. Values obtained based on international specifications and guidelines were used to compare the experimental results. Doi: 10.28991/CEJ-2022-08-11-019 Full Text: PDF
Destructive and Nondestructive Tests for Concrete Containing a Various Types of Fibers
Authors: Mahdi Muthana Sh. , Saleh Ihab S. , Faleh Saddam Kh.
Published: December 2022

Fibers have been considered an effective material that was used to improve the concrete's weak properties, namely its tensile strength, ductility, and crack resistance. Thus, the current study highlights two major objective, the former is the fibers shapes and types on the mechanical properties of the fresh and hardened concrete while the latter explores the impact of the fiber contents on the concrete mechanical properties developments. To achieve these targets six types of fibers (five of them made of steel and the last was polyolefin fibers) with various shapes are utilized. The tests were carried out to investigate the fibers shape and material contribution in the concrete mix properties improvement. The samples were subjected to destructive and non-destructive tests such as workability, compression, bending, and splitting. The non-destructive tests include ultrasonic pulse velocities and the Schmidt Hammer test. Three kinds of fibers (two of steel and one of polyolefin fiber) are used with variable content ratios of 0.5, 0.75, 1.0, and 1.5% to study the fiber content effect. Generally, the workability of fresh concrete has a reverse relationship with fiber presence and fiber content ratios. The compressive capacity, splitting and flexural strength has a direct proportion with fibers contents. The hooked steel fibers appeared the best results in terms of shape comparison. Doi: 10.28991/CEJ-2022-08-11-07 Full Text: PDF
Sustainability Performance of Voided Concrete Slab Using Waste Plastic Bottles
Authors: Dadzie Donald Kwabena , Kaliluthin A. K.
Published: December 2022

The present study is aimed at investigating the cost assessment of incorporating waste plastic bottles in the manufacture of voided concrete slabs; assessing the depth ratio vis-à-vis the cost reduction of incorporating waste plastic bottles in the manufacture of voided concrete slabs; assessing the energy consumption and CO2 emission obtained by incorporating waste plastic bottles in the manufacture of voided concrete slabs; and evaluating the impact of the depth ratio on embodied energy consumption and CO2 emission. The study was conducted on five types of slab specimens made: (1) conventional solid slab specimens; (2) slab specimens incorporated with 5% air-filled plastic bottles; and (3) slab specimens incorporated with 10% air-filled plastic bottles. Slab specimens of size 1000×1000×150 mm thick incorporated with 0, 5, and 10% waste plastic bottles were considered for the analysis of sustainability with respect to cost, energy, and CO2 savings. As part of the findings, it was revealed that the incorporation of waste plastic bottles into concrete slabs results in a reduction in the cost and volume of concrete. Again, using recycled plastic bottles in the slabs saved money, but for each percentage of bottles used, additional materials (plastic bottles, chicken wire, etc.) and labour were needed, which added to the cost. It was also revealed that embodied energy and CO2 emissions decrease as the percentage of plastic bottles in the slab increases. The study has confirmed that the void slab made with plastic bottles is more sustainable than the traditional solid slab system when it comes to cost, energy use, and CO2emissions. Doi: 10.28991/CEJ-2022-08-11-09 Full Text: PDF
ABOUT SOME CONCEPTS AND THEOREMS IN MATHEMATICAL ANALYSIS
Authors:   State Humanitarian-Technological University, Galkanov Allaberdi G.
Published: December 2022

The article presents the results obtained by the author in search of innovative forms and methods of presenting educational and methodological information in order to achieve a better understanding, assimilation and consolidation of the educational material read by students, and at the output – the ability to apply the knowledge gained in practice. Based on the axiom of continuity of the set of real numbers, definitions of a continuous set, a discontinuous set with a jump and with a gap are given. As well as the examples. The use of symbolism and the laws of mathematical logic, as also the equivalence of the necessary condition for the existence of a mathematical concept and a sufficient condition for the non-existence of this concept, allowed us to obtain a number of significant results with regard to the continuity of the function, the local extremum of the function and the inflection point of the function graph in the Roll theorem. The article shows the existence of an alternative to the standard form of presentation of the necessary condition for the continuity of a function at a point and the necessary condition for the continuity of a function on a set. A new criterion for the continuity of a function on a set is presented, which greatly simplifies the study of a function for continuity on a set. The consequence of the criterion was a new definition of the continuity of a function on a set. Heaviside and Dirichlet functions are given as an example. Some concepts and theorems set forth in the article are used by the author in classes on mathematical analysis.
PRECARIZATION. THE EFFECTIVENESS AND RELEVANCE OF RESULTS OF THE SCIENTIFIC RESEARCH IN THE SECOND DECADE OF THE 21ST CENTURY
Authors:   Russian State University for the Humanities, Arutyunov Valerii V.
Published: December 2022

The features of the dynamics of changes in scientometric indicators (publication activity, citation and demand) of the research results of Russian specialists in 2012–2021 in the field of precarization are considered; the identified research directions in the field of knowledge under consideration are given, the results of which are in high demand. Among them: new social groups in modern stratification systems of global society; precariat: theory and empirical analysis (based on the materials of surveys in Russia, 1994–2013); employment and social precarization in Russia; transformation of labor relations and new forms of employment in the digital economy; the impact of unstable employment on youth transitions in the labor market. It is noted that the level of scientific activity of Russian scientists in the mentioned field of research, determined taking into account the Hirsch index, is 1.5 times higher than the minimum value of the world level of scientific activity of a scientist. The article reveals peculiarities of changes in the above indicators, including an almost continuous increase in the number of publications and the citation index almost until the end of the analyzed period and identifies the organizations of Russia whose results of research in the field of precarization are actively demanded by other enterprises of the country. The analysis was carried out on the basis of databases of the Russian Science Citation Index (RSCI).
Pesquisa de percepção do Carnaval do DF: uma abordagem via Central Telefônica (156)
Authors: Federal Companhia de Planejamento do Distrito
Published: December 2022

Esta Nota Técnica utiliza dados de pesquisa de opinião pública conduzida por telefone, assistida por computador (Computer Assisted Telefone Interview - CATI), coletados junto a uma amostra de 4.124 cidadãos do Distrito Federal, em todas as Regiões Administrativas, entre os dias 22 de março e 2 de maio de 2019. O objetivo é identificar o perfil dos foliões e a percepção da população sobre o Carnaval.
Entre as principais constatações estão a proporção de foliões entre os entrevistados (10,7%) e a grande concentração deles no Plano Piloto, com 92,75% dos entrevistados afirmando que pularam Carnaval na região apesar de apenas 8,59% residirem no local. Além disso, nota-se a prevalência de indivíduos com ensino superior completo entre os que pularam Carnaval (71,09%). A maioria dos foliões (77,62%) recomendaria o Carnaval do DF a um amigo ou conhecido, e mesmo entre os entrevistados que optaram por não pular Carnaval, essa proporção é de 40,94%.
Avaliação do Carnaval por meio das mídias sociais
Authors: Federal Companhia de Planejamento do Distrito
Published: December 2022

O Carnaval é uma importante festa brasiliense com uma participação significativa do Governo do Distrito Federal em sua execução. Esta Nota Técnica faz uma avaliação do Carnaval no Distrito Federal por meio da análise de tweets públicos coletados no período de 2010 a 2019. Realizou-se uma avaliação textual dos tweets por meio de nuvens de palavras e avaliação de polaridade dos tweets usando a ferramenta Amazon Comprehend. Todas as análises foram feitas usando o programa R (R Core Team, 2019). Observa-se que houve uma redução do número de comentários neutros nos últimos anos sobre o Carnaval brasiliense e que existem muitos comentários relacionados a outras cidades quando se fala sobre o Carnaval do Distrito Federal. Alguns blocos brasilienses recebem mais comentários positivos do que o conjunto de blocos. De modo geral há mais tweets positivos do que negativos em relação ao Distrito Federal. Este trabalho mostra o potencial de pesquisas que utilizam redes sociais.
Investimentos no carnaval: quais os retornos mensuráveis do carnaval do Distrito Federal?
Authors: Federal Companhia de Planejamento do Distrito
Published: December 2022

Neste relatório são apresentadas as análises dos dados coletados nas entrevistas com as pessoas responsáveis por eventos realizados. O objetivo deste eixo de pesquisa foi agregar às demais estratégias de pesquisa a perspectiva dos realizadores de eventos. De forma mais específica, buscou-se conhecer elementos da dimensão simbólica inserindo questões relacionadas à trajetória e perfil dos blocos ao longo dos anos, seu vínculo com a comunidade, motivações para a realização dos eventos e suas opiniões sobre o Carnaval, sobre a política de fomento e sobre a própria realização do evento.
Itapoã - PDAD 2018 - Pesquisa Distrital por Amostra de Domicílios
Authors: Federal Companhia de Planejamento do Distrito
Published: December 2022

Trata-se de uma pesquisa realizada por amostra de domicílios urbanos, selecionados mediante critério probabilístico, com representatividade estatística para cada uma das 31 Regiões Administrativas do DF. A pesquisa investiga aspectos demográficos, migração, condições sociais e econômicas, situações de trabalho e renda, características do domicílio, condições de infraestrutura urbana, entre outras informações, de modo a oferecer um diagnóstico detalhado da situação atual da nossa cidade. Além disso, sua periodicidade bianual possibilita um acompanhamento longitudinal de diversos indicadores da capital Federal, permitindo um acompanhamento da evolução das condições de vida da população brasiliense.
Fercal - PDAD 2018 - Pesquisa Distrital por Amostra de Domicílios
Authors: Federal Companhia de Planejamento do Distrito
Published: December 2022

Trata-se de uma pesquisa realizada por amostra de domicílios urbanos, selecionados mediante critério probabilístico, com representatividade estatística para cada uma das 31 Regiões Administrativas do DF. A pesquisa investiga aspectos demográficos, migração, condições sociais e econômicas, situações de trabalho e renda, características do domicílio, condições de infraestrutura urbana, entre outras informações, de modo a oferecer um diagnóstico detalhado da situação atual da nossa cidade. Além disso, sua periodicidade bianual possibilita um acompanhamento longitudinal de diversos indicadores da capital Federal, permitindo um acompanhamento da evolução das condições de vida da população brasiliense.
Lago Sul - PDAD 2018 - Pesquisa Distrital por Amostra de Domicílios
Authors: Federal Companhia de Planejamento do Distrito
Published: December 2022

Trata-se de uma pesquisa realizada por amostra de domicílios urbanos, selecionados mediante critério probabilístico, com representatividade estatística para cada uma das 31 Regiões Administrativas do DF. A pesquisa investiga aspectos demográficos, migração, condições sociais e econômicas, situações de trabalho e renda, características do domicílio, condições de infraestrutura urbana, entre outras informações, de modo a oferecer um diagnóstico detalhado da situação atual da nossa cidade. Além disso, sua periodicidade bianual possibilita um acompanhamento longitudinal de diversos indicadores da capital Federal, permitindo um acompanhamento da evolução das condições de vida da população brasiliense.
Varjão - PDAD 2018 - Pesquisa Distrital por Amostra de Domicílios
Authors: Federal Companhia de Planejamento do Distrito
Published: December 2022

Trata-se de uma pesquisa realizada por amostra de domicílios urbanos, selecionados mediante critério probabilístico, com representatividade estatística para cada uma das 31 Regiões Administrativas do DF. A pesquisa investiga aspectos demográficos, migração, condições sociais e econômicas, situações de trabalho e renda, características do domicílio, condições de infraestrutura urbana, entre outras informações, de modo a oferecer um diagnóstico detalhado da situação atual da nossa cidade. Além disso, sua periodicidade bianual possibilita um acompanhamento longitudinal de diversos indicadores da capital Federal, permitindo um acompanhamento da evolução das condições de vida da população brasiliense.
Riacho Fundo - PDAD - Pesquisa Distrital Por Amostra De Domicílos
Authors: Federal Companhia de Planejamento do Distrito
Published: December 2022

Trata-se de uma pesquisa realizada por amostra de domicílios urbanos, selecionados mediante critério probabilístico, com representatividade estatística para cada uma das 31 Regiões Administrativas do DF. A pesquisa investiga aspectos demográficos, migração, condições sociais e econômicas, situações de trabalho e renda, características do domicílio, condições de infraestrutura urbana, entre outras informações, de modo a oferecer um diagnóstico detalhado da situação atual da nossa cidade. Além disso, sua periodicidade bianual possibilita um acompanhamento longitudinal de diversos indicadores da capital Federal, permitindo um acompanhamento da evolução das condições de vida da população brasiliense.
Pesquisa Metropolitana por Amostra de Domicílios - PMAD - 2017/2018 - Cidade Ocidental
Authors: Federal Companhia de Planejamento do Distrito
Published: December 2022

A PMAD tem como matriz a Pesquisa Distrital por Amostra de Domicílios (PDAD), iniciada em 2004 com o propósito de obter “informações de natureza socioeconômica sobre as famílias do Distrito Federal (DF), de enorme importância para o planejamento governamental, mas também para o planejamento empresarial, os estudos acadêmicos, e, enfim, para o melhor conhecimento da população brasiliense sobre a sua realidade econômica e social”. Por isso, com praticamente os mesmos propósitos, em 2013, foi instituída a PMAD. Com esta pesquisa, a Codeplan deu um passo à frente para conhecer a evolução da realidade dos municípios situados à volta do Distrito Federal.
Pesquisa Metropolitana por Amostra de Domicílios - PMAD - 2017 /2018 - Formosa
Authors: Federal Companhia de Planejamento do Distrito
Published: December 2022

A PMAD tem como matriz a Pesquisa Distrital por Amostra de Domicílios (PDAD), iniciada em 2004 com o propósito de obter “informações de natureza socioeconômica sobre as famílias do Distrito Federal (DF), de enorme importância para o planejamento governamental, mas também para o planejamento empresarial, os estudos acadêmicos, e, enfim, para o melhor conhecimento da população brasiliense sobre a sua realidade econômica e social”. Por isso, com praticamente os mesmos propósitos, em 2013, foi instituída a PMAD. Com esta pesquisa, a Codeplan deu um passo à frente para conhecer a evolução da realidade dos municípios situados à volta do Distrito Federal.
Pesquisa Metropolitana por Amostra de Domicílios - PMAD - 2013 - Cristalina
Authors: Federal Companhia de Planejamento do Distrito
Published: December 2022

Os dados coletados pela PMAD/2013 abrangem um amplo leque de informações: características gerais da população (gênero, faixa etária, cor, estado civil, religião, escolaridade, acesso à saúde, ocupação, renda, posse de bens, acesso a serviços diversos), aspectos culturais e esportivos, infraestrutura urbana e condição do domicílio. São dados que também possibilitam a identificação dos principais fluxos entre esses municípios e o Distrito Federal.
A pesquisa foi desenvolvida em quatro etapas. A primeira foi dedicada ao planejamento, ocasião em que se procurou definir as áreas de estudo e o cronograma de atividades. Ainda nesta fase, foram elaborados os manuais, os formulários da pesquisa, a seleção e o treinamento da equipe. A segunda etapa envolveu a aplicação dos questionários junto às famílias, compreendendo também a checagem das informações quanto à veracidade e a crítica visual. Na terceira, os dados coletados foram digitados, criticados, criando-se um banco de dados para tabulação, cruzamento e expansão dos resultados. A etapa seguinte culminou na elaboração do relatório, contendo o resultado final e consolidado da pesquisa e, por último, a realização dos relatórios individuais referente a cada município pesquisado, sendo esse o do Município de Cristalina.
Mães Primíparas de 30 a 49 anos de idade no DF de 1996 a 2013
Authors: Federal Companhia de Planejamento do Distrito
Published: December 2022

No Distrito Federal, observou-se que no período de 1996 a 2013, cresceu a participação das mulheres brasilienses, que tiveram seus primeiros filhos entre as idades de 30 a 49 anos, enquanto para o grupo de 15 a 29 anos houve uma queda, mostrando aumento significativo da preferência pela maternidade tardia.
Para realizar este estudo, foram consultados vários trabalhos: entre eles o artigo lançado em 2014, “Reprodução após os 30 anos no Estado de São Paulo”2, elaborado por estudiosos das transições demográficas, no qual comentam que, em países europeus, tem-se registrado o declínio constante das taxas de fecundidade a partir de 1970. As causas apontadas têm sido o uso de métodos contraceptivos mais eficientes e mudanças nos padrões comportamentais, fatores construtores dessa transição.
Neste estudo, com ênfase na primeira gestação das mulheres com 30 a 49 anos, demonstra-se que o Distrito Federal também tem acompanhado essa tendência com a queda da fecundidade e a postergação da maternidade.