bluuebunny/crossref_metadata_2025 huggingface dataset:
Shifting Terrains of Political Participation in Sudan: Elements dating from the second colonial (1898–1956) period to the contemporary era
Authors: Abdel Aziz Azza Ahmed , Alfaki Aroob
Published: July 2021

This report presents elements of the development of Sudanese women’s political participation through time. It highlights several political routes from their early days until the contemporary era. The study is based on an analysis of secondary sources alongside empirical data derived from four states within Sudan, namely: Blue Nile, Central Darfur, Kassala and River Nile. Different themes are explored and they include: the meanings of political participation, women’s leadership roles, identifying structural limitations that hinder the participation of women in politics, possible avenues for women’s participation, the presence of women in politics, variations in religious interpretations and their impact on political participation, the status of the Sudanese constitution and the views of women and men on the extent that women might advance in the next elections. The report also address how the December revolution of 2018 might improve the situation for women’s political participation, since it marks a break from the earlier practices of the Islamist regime that had a severe negative impact on the freedoms of Sudanese women and their ability to engage in political activities. Political parties are considered gatekeepers for women’s access to political positions of power as they play an important role in institutionalizing women’s inclusion in politics. Ensuring that political parties in Sudan play an active role in the advancement of gender equality and the enhancement of women’s political participation is particularly important as Sudan prepares for its transition to democracy.
Stimulus Iklan, Positive Electronic Word of Mouth (eWOM) dan Belanja Impulsif: Dampak Mediasi Motif Hedonis Pembelanja Online
Authors: Ernawati Nani
Published: July 2021

Penelitian ini ditujukan untuk menguji kerangka teoritis yang menjelaskan bagaimana peran mediasi motivasi belanja hedonis dalam hubungannya dengan stimulus iklan, cerita dari mulut ke mulut (electronics word of mouth-eWOM), dan belanja impulsif pembelanja secara daring (online). Survey dilakukan terhadap 384 warga Kota Bandung yang dipilih dengan metode systematic random sampling. Data dihimpun dengan menggunakan instrumen kuesioner tertutup  yang telah diuji aspek validitas dan reliabilitasnya. Data dianalisis dengan menggunakan analisis jalur, yaitu salah satu varian analisis regresi.  Penelitian dilakukan pada bulan Maret s.d April 2021 dan hasilnya menunjukan menunjukkan bahwa stimulus iklan berpengaruh positif langsung terhadap motivasi belanja hedonis dan belanja impulsif pembelanja online.  Sementara, eWOM tidak berpengaruh terhadap motivasi belanja hedonis tetapi berpengaruh langsung terhadap belanja impulsif.  Selain itu, terbukti motif belanja hedonis memediasi pengaruh stimulus iklan terhadap belanja impulsif.  Pengiklanan yang masif dan persuasif tampaknya harus dijadikan strategi andalan bagi setiap lokapasar untuk membangkitkan motif belanja hedonis dan perilaku belanja impulsif pembelanja toko online. Hasil penelitian diharapkan dapat menjadi rujukan alternatif  bagi peneliti dan praktisi dalam memahami peran motif belanja hedonis dan perilaku belanja impulsif.
Perbandingan Kinerja Keuangan BUSN Devisa Konvensional dan BUSN Non Devisa Konvensional
Authors: Devi Ma’ulvi Marsela , Sistiyarini Evi
Published: July 2021

Penelitian ini bertujuan untuk mengetahui perbedaan yang signifikan pada LDR, CR, NPL, APB, NIM, ROA, CAR dan DR antara Bank Umum Swasta Nasional Devisa Konvensional dan Bank Umum Swasta Nasional Non Devisa Konvensional pada periode triwulan satu tahun  2015 sampai dengan triwulan empat 2019. Sampel dalam penelitian ini adalah Bank Bumi Arta, Bank Maspion, Bank MNC Internasional, Bank Yudha, Bank Jasa Jakarta dan Bank Sahabat Sampoerna. Penelitian ini menggunakan data sekunder, teknik pengambilan sampel menggunakan Purposive Sampling dan teknik analisis data menggunakan independent simple t test. Hasil dari penelitian ini menunjukkan bahwa terdapat perbedaan yang signifikan pada LDR, CR, NPL, APB, NIM, ROA, dan CAR dan terdapat perbedaan yang tidak signifikan pada DR.
Penerapan Work From Home Terhadap Produktivitas Kerja (Studi Karyawan PT Berlian Jasa Terminal Indonesia)
Authors: Pasaribu Julika , Anshori Mochammad Isa
Published: July 2021

The object of research was done on employees in Berlian Jasa Terminal Indonesia (BJTI) Port of Surabaya. Methodology this study used a quantitative method, the analysis of multiple regression. The sampling method by using sample random sampling with quantity of respondents as many as 65 respondents who are staff BJTI Port of Surabaya. The study to decide the relationship and impact of the implementation of work from home work productivity of employees BJTI Surabaya. The results of this study prove (1) time has positive and significant on work productivity with value tcount is 13.780 > ttable 1,67065 and significant level has 0,000 < 0,05 ; (2) room (workspace) has positive and significant influence on work productivity with value tcount is 3.215 > ttable 1,67065 and significant level has 0,002 < 0,05 ; (3) role of social has  positive and significant influence on work productivity with value tcount is 12.758 > ttable  is 1,67065 and significant level has 0,000 < 0,05 ; (4) Together or simultaneously that time, room and role of social has significant effect on work productivity, from the value of Fcount 402.181 > Ftabel  2.76 with significant level 0,000.
Pengaruh Word of Mouth dan Manfaat Terhadap Keputusan Menggunakan E-Wallet Dana Melalui Kepercayaan Pelanggan di Jabodetabek
Authors: Himawati Ditiya , Firdaus Mu’minatus Fitriati
Published: July 2021

Kemudahan dalam bertransaksi saat ini merupakan salah satu dampak dari perkembangan financial technology (fintech). Tujuan penelitian ini adalah ingin mengetahui dan menganalisis pengaruh word of mouth dan manfaat terhadap keputusan menggunakan e-wallet DANA melalui kepercayaan pelanggan di Jabodetabek. Metode analisis yang digunakan adalah data primer dengan pendekatan kuantitatif dan tahap uji yang dilakukan adalah uji validitas (CFA), uji reliabilitas (AVE), Analisis Structural Equation Modelling (SEM), Analisis Direct Effect, Indirect Effect,Total Effect dan Uji Hipotesis dengan bantuan alat uji yaitu AMOS. Data yang digunakan berupa instrumen kuesioner dan data valid yang berhasil dikumpulkan sebanyak 200 responden. Metode pengambilan sampel pada penelitian ini adalah non probability sampling dengan teknik purposive sampling. Penelitian ini dilakukan pada bulan Maret 2021 sampai dengan April 2021. Hasil penelitian ini menunjukkan bahwa word of mouth tidak berpengaruh positif dan signifikan terhadap kepercayaan pelanggan e-wallet DANA di Jabodetabek, manfaat berpengaruh positif dan signifikan terhadap kepercayaan pelanggan e-wallet DANA di Jabodetabek, dan word of mouth tidak berpengaruh positif dan signifikan terhadap keputusan menggunakan e-wallet DANA di Jabodetabek. Sedangkan manfaat dan kepercayaan berpengaruh positif dan signifikan terhadap keputusan menggunakan e-wallet DANA di Jabodetabek.
Teachers’ Opinions on Conducting Mathematics Education Online and Recommendations on Improving Its Quality
Authors: Yeti Hediye Sarikaya
Published: July 2021

ABSTRACT This research aims to determine lecturers’ views on online mathematics education and to get suggestions for its improvement. The participants of the study consist of 15 people who work as instructors in a private university. In the study, the quantitative-qualitative mixed pattern model was used. The data were collected from the participants with the help of an online form containing questions about sex, age, pedagogy status, computer usage levels and ten questions related to research. Participants expressed many positive and negative opinions on the online mathematics education process. Responses were analyzed as the opinions of the lecturers with/without pedagogical formation. According to the data obtained, faculty members with pedagogical formation argue that online mathematics education is appropriate in all aspects; however, those without a pedagogical formation are often against online mathematics education. Recommendations developed as a result of the findings are presented at the end of the study.
The Colonialist Roots of Democratic Decay: Collective Action, Experimental Psychology, and Spatial Discourse
Authors: Anderson, Jr. Richard D.
Published: July 2021

Democracy and dictatorship both depend on collective action, which humans avoid because it takes more effort than it is worth. Experimental psychology reveals that positive spatial discourse, explicit or implicit, reduces the effort that humans project a task to require. If so, dictatorships arise because explicit positive spatial cues, capable of retaining coherence only if assigning only to relatively few members of any population, generate the collective repression by a minority that establishes any dictatorship. Conversely the implicit cue to group size in a color metaphor, capable of assigning throughout a population, generates the universal franchise establishing a democracy. By supplementing spatial cues dividing Europeans with a metaphor of whiteness unifying Europeans and their settlers, colonialism made democracy possible once European withdrawal ended white dictatorship over colonial territories. But by erasing the condition that once secured the universal franchise among Europeans and their settlers, loss of colonies invigorates whites’ fears that hard won political rights have reverted to insecurity. That insecurity is responsible for the democratic decay now evident across Europe and its settler territories.
The Image of Russia in Contemporary Russian Society: Political and Psychological Analysis
Authors: Shestopal Elena
Published: July 2021

The article is based on the results of a study of Russian citizens’ perception of their country. More than 500 in-depth interview and nearly the same number of projective tests from 15 Russian regions became the basis for political-psychological analysis. These data enabled to identify the core features of Russia’s image in Russian mentality. This image includes reflections of authorities, leaders, the population, territory and the international role of the country in the country’s perception. The results confirm the conclusion that territorial expansionism is not typical for Russians. Authorities’ perception is an important component of the country’s image. Citizens' mistrust to the state was revealed. This allows us to suggest that Russian society still has not overcome the negative processes that started in the 1980s and led to a serious complex of “national inferiority” in the post-Soviet period.
Analyzing social media messages of public sector organizations utilizing sentiment analysis and topic modeling
Authors: Yaqub Ussama , Chun Soon Ae , Atluri Vijayalakshmi , Vaidya Jaideep
Published: July 2021

In this paper, we perform sentiment analysis and topic modeling on Twitter and Facebook posts of nine public sector organizations operating in Northeast US. The study objective is to compare and contrast message sentiment, content and topics of discussion on social media. We discover that sentiment and frequency of messages on social media is indeed affected by nature of organization’s operations. We also discover that organizations either use Twitter for broadcasting or one-to-one communication with public. Finally we found discussion topics of organizations – identified through unsupervised machine learning – that engaged in similar areas of public service having similar topics and keywords in their public messages. Our analysis also indicates missed opportunities by these organizations when communication with public. Findings from this study can be used by public sector entities to understand and improve their social media engagement with citizens.
Greek High Phenolic Early Harvest Extra Virgin Olive Oil Reduces the Over-Excitation of Information-Flow Based on Dominant Coupling Mode (DoCM) Model in Patients with Mild Cognitive Impairment: An EEG Resting-State Validation Approach
Authors: Dimitriadis Stavros I. , Lyssoudis Christos , Tsolaki Anthoula C. , Lazarou Eftychia , Kozori Mahi , Tsolaki Magda
Published: July 2021

Background: Extra virgin olive oil (EVOO) constitutes a natural compound with high protection over cognitive function that could positively alter brain dynamics and the mixture of within and between-frequency connectivity. Objective: The balance of cross-frequency coupling over within-frequency coupling can build a nonlinearity index (NI) that encapsulates the over-excitation of information flow between brain areas and across experimental time. The present study investigated for the very first time how the Greek High Phenolic Early Harvest Extra Virgin Olive Oil (HP-EH-EVOO) versus Moderate Phenolic (MP-EVOO) and Mediterranean Diet (MeDi) intervention in people with mild cognitive impairment (MCI) could affect their spontaneous EEG dynamic connectivity. Methods: Forty-three subjects (14 in MeDi, 16 in MP-EVOO, and 13 in HP-EH-EVOO) followed an EEG resting-state recording session (eyes-open and closed) before and after the treatment. Following our dominant coupling mode model, we built a dynamic integrated dynamic functional connectivity graph that tabulates the functional strength and the dominant coupling mode model of every pair of brain areas. Results: Signal spectrum within 1–13 Hz and theta/beta ratio have decreased in the HP-EH-EVOO group in the eyes-open condition. The intervention improved the FIDoCM across groups and conditions but was more prominent in the HP-EH-EVOO group (p < 0.001). Finally, we revealed a significant higher post-intervention reduction of NI (ΔNITotal and α) for the HP-EH-EVOO compared to the MP-EVOO and MeDi groups (p < 0.0001). Conclusion: Long-term intervention with HP-EH-EVOO reduced the over-excitation of information flow in spontaneous brain activity and altered the signal spectrum of EEG rhythms.
Potential social media influencers discrimination for concept marketing in online brand community
Authors: Li Shugang , Wang Ru , Zhang Yuqi , Lu Hanyu , Cai Nannan , Yu Zhaoxu
Published: July 2021

Identifying potential social media influencers (SMIs) accurately can achieve a long-time and effective concept marketing at a lower cost, and then promote the development of the corporate brand in online communities. However, potential SMIs discrimination often faces the problem of insufficient available information of the long-term evolution of the network, and the existing discriminant methods based on link analysis fail to obtain more accurate results. To fill this gap, a consensus smart discriminant algorithm (CSDA) is proposed to identify the potential SMIs with the aid of attention concentration (AC) between users in a closed triadic structure. CSDA enriches and expands the users’ AC information by fusing multiple attention concentration indexes (ACIs) as well as filters the noise information caused by multi-index fusion through consensus among the indexes. Specifically, to begin with, to enrich the available long-term network evolution information, the unidirectional attention concentration indexes (UACIs) and the bidirectional attention concentration indexes (BACIs) are defined; next, the consensus attention concentration index (CACI) is selected according to the principle of minimum upper and lower bounds of link prediction bias to filter noise information; the potential SMI is determined by adaptively calculating CACI among the user to be identified, unconnected user group and their common neighbor. The validity and reliability of the proposed method are verified by the actual data of Twitter.
Nighttime vehicle detection based on direction attention network and bayes corner localization
Authors: Huang Danyang , Zhou Zhiheng , Deng Ming , Li Zhihao
Published: July 2021

Detecting vehicle at night is critical to both assistant driving systems and autonomous driving systems. In this paper, we propose a deep network scheme assisted by light information with good generalization to detect vehicle at night. Our approach is divided into two branches, the object stream and the pixel stream. The object stream generates a batch of bounding boxes, and the pixel stream utilizes the vehicle light information to calibrate the bounding boxes of the object stream. In the object stream, we propose a new structure, Direction Attention Pooling (DAP), to improve the accuracy of the prior boxes. DAP leads into attention mechanism. The feature maps obtained from backbone network is divided into two branches. One branch obtains direction perception information through IRNN layer, and the other branch learns attention weights. The weights are multiplied with the direction perception features in an element-wise manner. In the pixel stream, we propose a corner localization algorithm based on Bayes to get more accurate corners with the vehicle light pixels. The locations of the corners are considered as a discrete random variable. When the mask of the object is known, solving the probability distribution of the corner of the object is the next step. The corners with the highest probability is the correct corner. On the nighttime vehicle detection datasets CHUK and SYSU, our method achieves the accuracy of 97.2% and 96.86%, which outperforms other state-of-the-art methods by at least 0.31% and 0.34%.
A fast and global search method for grasping pose optimization in manufacturing
Authors: Zeng Detian , Shi Jingjia , Zhan Jun , Liu Shu
Published: July 2021

To use the electromagnetic chuck to precisely absorb industrial parts in manufacturing, this paper presents a hybrid algorithm for grasping pose optimization, especially for the part with a large surface area and irregular shape. The hybrid algorithm is based on the Gaussian distribution sampling and the hybrid particle swarm optimization (PSO). The Gaussian distribution sampling based on the geometric center point is used to initialize the population, and the dynamic Alpha-stable mutation enhances the global optimization capability of the hybrid algorithm. Compared with other algorithms, the experimental results show that ours achieves the best results on the dataset presented in this work. Moreover, the time cost of the hybrid algorithm is near a fifth of the conventional PSO in the discovery of optimal grasping pose. In summary, the proposed algorithm satisfies the real-time requirements in industrial production and still has the highest success rate, which has been deployed on the actual production line of SANY Group.
An enhanced CAD system based on machine Learning Algorithm for brain MRI classification
Authors: Neffati Syrine , Ben Abdellafou Khaoula , Aljuhani Ahamed , Taouali Okba
Published: July 2021

The development of Computer-Aided Design (CAD) and Computer-Aided Manufacturing (CAM) systems in the past decade has led to a remarkable advance in biomedical applications and devices. Particularly, CAM and CAD systems are employed in medical engineering, robotic surgery, clinical medicine, dentistry and other biomedical areas. Hence, the accuracy and precision of the CAD and CAM systems are extremely important for proper treatment. This work suggests a new CAD system for brain image classification by analyzing Magnetic Resonance Images (MRIs) of the brain. Firstly, we use the proposed Downsized Rank Kernel Partial Least Squares (DR-KPLS) as a feature extraction technique. Then, we perform the classification using Support Vector Machines (SVM) and we validate with a k-fold cross validation approach. Further, we utilize the Tabu search metaheuristic approach in order to determine the optimal parameter of the kernel function. The proposed algorithm is entitled DR-KPLS+SVM. The algorithm is tested on the OASIS MRI database. The proposed kernel-based classifier is found to be better performant than the existing methods.
Remaining useful life prediction for aircraft engines based on phase space reconstruction and hybrid VNS-SVR model
Authors: Hu Junying , Qian Xiaofei , Cheng Hao , Tan Changchun , Liu Xinbao
Published: July 2021

Based on phase space reconstruction (PSR) and hybrid VNS-SVR model, a remaining useful life (RUL) prediction method for aircraft engines is proposed. The proposed hybrid model combines support vector regression (SVR), which has been successfully adopted for regression problems, with the variable neighborhood search (VNS). First, the phase space reconstruction is used to transform the selected one-dimensional performance sequences of aircraft engines into matrix forms, which increases the data information and improve the learning efficiency of the model effectively. Then, SVR is used to construct the prediction model. Meanwhile, a VNS algorithm is proposed to optimize the kernel parameters. Finally, the hybrid model is used to RUL prediction of the aircraft engines. The experimental results show that the method has a good prediction performance.
Risk assessment for supply chain based on Cloud model
Authors: Li Shuhao , Sun Qiang , Liu Shupei
Published: July 2021

In recent years, supply chain risk management has been followed with interest due to the short life cycle of products. How to identify risk indicators can help evaluate risks on supply chains. Commonly adopted methods such as Fuzzy to determine the level of risks have limitations. In this paper, a framework of supply chain risk evaluation is first proposed and risk indicators are identified by theoretical surveys from 35 keywords and empirical analysis from 448 questionnaires. Moreover, both linguistic risk assessment model and Cloud model are used to evaluate risks of supply chain. The Cloud model evaluation results are between general risk and high risk but closer to high risk. In addition, Cloud expected value of risk is 6.54 which is within the high-risk range, and evaluation results are also high risk. It is shown that when the weights are the same, the cloud model can determine the priority of risk indicators, and reflect volatility and randomness comparing with other evaluation methods.
Centralised management of reference metadata and its application
Authors: Seljak Rudi , Steenvoorden Tina
Published: July 2021

The Statistical Office of the Republic of Slovenia (SURS) has a long tradition of producing and using standardized reference and quality-related metadata. Most of the surveys have to collect, analyse and disseminate this kind of information and a lot of this information is made available to different (internal and external) users. The workload became burdensome and inefficient, since this information was scattered around in different locations and in different forms, which significantly reduced its analytical power. Therefore, SURS started to develop a new, multipurpose application that would enable easier and more effective usage of reference metadata produced through the statistical process and would support the evaluation phase of our statistical business model. The basic methodological fundaments that we have been building upon are presented in the paper. The paper describes the individual steps in the design of the application, details on the functionalities of the application and points out main challenges that we met during the development.
The need for timely official statistics. The COVID-19 pandemic as a driver for innovation
Authors: De Broe Sofie , ten Bosch Olav , Daas Piet , Buiten Gert , Laevens Ben , Kroese Bert
Published: July 2021

This paper discusses how Statistics Netherlands managed to respond quickly with a range of new outputs to the sudden increase in the need for statistical information following the outbreak of the COVID-19 pandemic. It describes the innovation process already in place, as well as the innovations in response to the pandemic. This is followed by a discussion of what made speedy innovation and implementation possible, after which lessons are drawn in order to maintain the ability to react quickly to future policy questions. One important success factor is the combination of new data sources with already existing statistics for calibration. The developments at Statistics Netherlands can be seen as a case study. Several other NSIs also accelerated innovation after the outbreak of the pandemic, such as the Australian Bureau of Statistics and the British Office for National Statistics.
Comparison of the BTE tech EVJ handgrip to the Jamar hand dynamometer for measuring grip strength
Authors: Myers Edwin J. , Dominguez David S. , Guigliano Melissa E. , Mallory Melissa G.
Published: July 2021

INTRODUCTION:

This study compared the inter-instrument reliability of the Jamar Hand Dynamometer (Jamar) to the BTE EVJ Handgrip tool (EVJ). The EVJ is a new digital handgrip instrument designed by BTE Technologies Inc. (BTE Tech) utilizing Bluetooth technology to automatically upload data to a computer or electronic health record.

METHOD:

This repeated measure study engaged 338 participants ([Formula: see text] 199 females, [Formula: see text] 139 males) ages 20 to 50. All participants were tested on both devices following the protocol established by the American Society of Hand Therapists (ASHT).

RESULTS:

Comparative statistics included ICC values (0.81–0.84), Pearson R (correlation coefficient) (0.68–0.77), and Bland Altman plots (93–95% of data within 2 SD), indicating good inter-instrument agreement.

CONCLUSIONS:

The EVJ Handgrip, developed by BTE Technologies, demonstrated good inter-instrument reliability with the Jamar Hand Dynamometer and may be reliable to use when referencing the published normative values in the clinical environment.
The use of internet and technological devices in children with disability from the perspective of parents
Authors: Kocamaz Elif Bilsin , Akça Kamile , Uygun Şahin
Published: July 2021

BACKGROUND:

Information and communication technologies can make a significant difference in the lives of individuals with disabilities. Hardware and software services adapted for the type of disability may enable the individuals with disabilities to make use of information and communication technologies.

OBJECTIVE:

The aim of the study was to examine the use of internet and technological devices in children with disability from the perspective of parents.

METHODS:

This was a cross-sectional and descriptive study. The sample group was comprised of parents who accepted to take part in the study and who have children continuing their education at a special education and rehabilitation center. Family and Child Introductory Information Form, Use of Internet and Technological Devices Information Form were used for data acquisition.

RESULTS AND CONCLUSIONS:

It was determined that 97.5% of the children have smart phones, 45% have tablets and 34% have computers and that smart phones, tablets and computers are used for playing games by 64%, 27% and 10% of the children respectively. The present study has shown that children with disability are able use technological devices by themselves for the purposes of following social media, playing games, watching films/cartoons, listening to music, doing homework, chatting and taking photographs.
Health risk assessment and health management of urban residents facing epidemic pneumonia
Authors: Mao Kedun
Published: July 2021

BACKGROUND: As the birthplace of coronavirus disease 2019 (COVID-19) in China, Hubei Province is prone to outbreak of epidemic pneumonia and respiratory infectious diseases due to its large population mobility and high population density. OBJECTIVE: The research aims to assess the health risk of urban residents with epidemic pneumonia as an example, and formulate corresponding health management measures according to the risk degree, thus providing the basis for improving the physical and mental health level of urban residents. METHODS: Hubei Province, the birthplace of COVID-19, is selected as the study area. Five cities (Wuhan, Ezhou, Jingzhou, Huanggang, and Xiaogan) with the largest number of confirmed cases are assessed for health risk. The method of health risk assessment for residents is put forward, including establishing a quantitative model and determining risk index, vulnerability index, and exposure index of epidemic pneumonia. According to the characteristics of COVID-19, the corresponding health management measures are put forward. RESULTS: The order of vulnerability index is Huanggang >  Jingzhou >  Xiaogan >  Ezhou >  Wuhan; the order of risk index is Wuhan >  Xiaogan >  Jingzhou >  Ezhou >  Huanggang; the order of exposure index is Wuhan >  Jingzhou >  Xiaogan >  Huanggang >  Ezhou; the order of risk is Wuhan >  Jingzhou >  Ezhou >  Huanggang >  Xiaogan. The risk of Wuhan and Ezhou is at the middle level, and the other three cities are in the low level. CONCLUSIONS: Many factors affect the physical and mental health of residents, and the residents’ health risk index is higher especially in the economically-developed, densely-populated, and highly-mobile cities.
Analysis of distribution characteristics of PM2.5 and health risk appraisal in northeast china through the geographically weighted regression model
Authors: Zhu Zhe , Zhang Yanting , Wang Xi , Yong David
Published: July 2021

BACKGROUND: Recently, the frequent occurrence of air pollution greatly affects people’s health. OBJECTIVE: It aims to explore the spatial non-stationarity of PM2.5. METHODS: Geographically Weighted Regression (GWR) model is applied to fit spatial structure to linear regression model. The basic principles of GWR model are introduced. Bandwidth of weight function is optimized. Then, health risk of residents in northeast China is appraised according to PM2.5 distribution characteristics. A model for phycological health risk appraisal is established. RESULTS: From the linear analysis between the fitting results by designed GWR model and ground observation, the determination coefficient is 0.7, Relative Accuracy (RA) is 0.62, Mean Prediction Error (MPE) is 25.3, and Root Mean Squared Error (RMSE) is 26.2. The model prediction results are superior to those of ordinary multivariate regression model. Moreover, the risk of respiratory and cardiovascular diseases in the elderly is positively correlated with PM2.5 exposure. The illness of the elderly is related to weather factors such as average temperature, air pressure, and relative humidity. CONCLUSIONS: The study provides a reference for the research on risk of illness of people in PM2.5 environment.
Apoyo social y envejecimiento activo: Aproximaciones desde la perspectiva de la psicología positiva
Authors: González Zabala Andrés Guido
Published: July 2021

El presente trabajo intenta dar un panorama general, desde la óptica de la psicología positiva, sobre los conceptos de envejecimiento activo y apoyo social. A su vez, mediante la revisión de diversos artículos de investigación se intentará relacionar con claridad y fundamentos ambas construcciones teóricas. Los resultados hallados convergen en un punto común, hay una fuerte interrelación entre ellas. Para que el envejecimiento activo sea posible, es necesario que exista apoyo social en mayor o menor medida. A raíz de lo dicho, surge la necesidad de tomar conciencia sobre la importancia que tienen las redes de contención en la sociedad general y puntualmente en los adultos mayores.
Transformation of fluoroquinolone-resistance Neisseria gonorrhoeae gyrA and parC genes
Authors: Walter de Walthoffen Szymon
Published: July 2021

Introduction: N. gonorrhoeae is one of the etiological causative agents of one of the most common sexually transmitted diseases. Gonococci has created many resistance mechanisms, which is associated with bacterial evolution. Natural transformation is the basic method of horizontal gene transfer in bacteria of the genus Neisseria, which can lead to a mutation in the gyrA gene encoding DNA gyrase. The aim of the study was to verify the view on the significance of mutations at positions 91 and 95 of the gyrA protein on the sensitivity of N. gonorrhoeae to antibiotics of the quinolone type.
Methods: GyrA gene was introduced into an sensitive isolate of N. gonorrhoeae using genetic transformation. Resistance gene donor, recipient and transform strains were tested for susceptibility and the gyrA gene was sequenced.
Results: It has been shown that double mutation in amino acid acid sequence of the GyrA protein at positions 91 and 95 increase the value of MIC from 0,003 mg / L to 0,125 mg / L at CIP sensitive N. gonorrhoeae strain.
Conclusions: Mutations in the amino acid sequence at positions 91 and 95 affet the strain’s sensitivity to ciprofloxacin, but it is not the only mechanism which could alter the MIC value of quinolones.
YIELD AND QUALITY OF BELL PEPPER FRUITS IRRIGATED WITH MAGNETICALLY TREATED WATER
Authors: Lorenzoni Marcelo Zolin , Rezende Roberto , Seron Cássio De Castro , Souza Álvaro Henrique Cândido de
Published: July 2021

The application of magnetically treated water is a valuable technique for crop irrigation to enhance the yield and quality of agricultural products. This study aims to evaluate the effect of irrigation water depths and the application of water with and without magnetic treatment on the yield and quality of bell pepper fruits in a controlled environment, verifying the effect of magnetically treated water on soil water retention. Two experiments were conducted in the Irrigation Technical Center of the Universidade Estadual de Maringá, Maringá/PR; the first on Summer 2017-2018, and the second on Winter-Spring 2018. A randomized block design with a factorial scheme 3 x 2 with four repetitions was used for the first experiment and a 2 x 2 scheme with six repetitions for the second. The first factor was the water replacement levels (based on the crop evapotranspiration), and the second the irrigation water treatment, with or without magnetic treatment. The yield and number of fruits were determined after six and four harvests in the first and second experiments. Quality characteristics (soluble solids level, pH, and titratable acidity) were evaluated from three fruits of each plant. The data was submitted to the Tukey test (p ≤ 0.05). It was verified that the application of magnetically treated water did not influence yield. However, it increased the levels of soluble solids and pH. To evaluate the effect of applying magnetically treated water on soil retention, 12 pots filled with soil and without plants were used. An increase in the gravimetric soil moisture using magnetically treated water was perceived, demonstrating higher water retention when using the irrigation method.
A hazai pilóta nélküli légi járművekkel kapcsolatos szabályozás összehasonlítása a többi uniós tagállam gyakorlatával
Authors: Sándor Zsolt , Pusztai Máté
Published: July 2021

A pilóta nélküli légijármű-rendszerek használatában jelentős változást hozott a 2020. december 31. napján hatályba lépett EU-s végrehajtási rendelet, amely alapjaiban határozza meg az ilyen eszközökkel való repülési műveletek végrehajtásának módját. A végrehajtási rendelet keretrendszert biztosít a tagállamok számára, és rögzíti az alapelveket. Bár végrehajtási rendeletről van szó, amely teljes egészében kötelező és közvetlenül alkalmazandó a tagállamokban, bizonyos területeken az egyes tagállamok ettől eltérhetnek, és szigorúbb feltételeket határozhatnak meg. Cikkünkben összefoglalóan bemutatjuk, hogy az egyes EU-s tagállamokban a keretrendszertől hogyan tér el a szabályozás.
A Ráckevei (Soroksári) Duna-ág integrált tervezése a fenntartható vízgazdálkodás érdekében
Authors: Tóth Tamás
Published: July 2021

A Ráckevei (Soroksári) Duna (RSD) egy stratégiai jelentőségű vízgazdálkodási rendszer. Az RSD-vel kapcsolatban komplex igények jelentkeznek, amelyek  összehangolása jelentős kihívást jelent. Az éghajlatváltozás  következtében egyre nagyobb valószínűséggel előforduló  kisvizes időszakok mennyiségi és minőségi problémákhoz  vezethetnek. A klímaváltozás tükrében dinamikusan változó igények, illetve tervezési körülmények hatására sérülhet a  rendszer funkciójának ellátása. A vízrendszer kiterjedéséből  és komplexitásából adódóan, egy esetleges  fejlesztés során, nagy beruházási és üzemeltetési  költségekkel kell kalkulálni. A rendszer működésébe történő  beavatkozások visszahatnak egymásra, ezért  kritikus kérdés a forrásfelhasználás hatékonyságának  biztosítása. A tudományos közlemény célja, hogy stratégiai  szemléletű komplex tervezés alkalmazásával minimalizálja a kockázatokat. A közlemény szerzője feltárja a rendszerszintű komplex megoldási lehetőségeket. A  kutatási eredmények hozzájárulnak az RSD vízminőségi  állapotának költséghatékony javításához, továbbá elősegítik a hatékony üzemeltetést.
Метод обробки вiдеодaних з можливістю їх захисту після квaнтувaння
Authors: Гаврилов Дмитро Сергійович , Бучік Сергій Степанович , Бабенко Юрій Михайлович , Шульгін Сергій Сергійович , Слободянюк Олександр Васильович
Published: July 2021

The subject of research in the article is the video processing processes based on the JPEG platform for data transmission in the information and telecommunication network. The aim is to build a method for processing a video image with the possibility of protecting it at the quantization stage with subsequent arithmetic coding. That will allow, while preserving the structural and statistical regularity, to ensure the necessary level of accessibility, reliability, and confidentiality when transmitting video data. Task: research of known methods of selective video image processing with the subsequent formalization of the video image processing procedure at the quantization stage and statistical coding of significant blocks based on the JPEG platform. The methods used are an algorithm based on the JPEG platform, methods for selecting significant informative blocks, arithmetic coding. The following results were obtained. A method for processing a video image with the possibility of its protection at the stage of quantization with subsequent arithmetic coding has been developed. This method will allow, while preserving the structural and statistical regularity, to fulfill the set requirements for an accessible, reliable, and confidential transmission of video data. Ensuring the required level of availability is associated with a 30% reduction in the video image volume compared to the original volume. Simultaneously, the provision of the required level of confidence is confirmed by an estimate of the peak signal-to-noise ratio for an authorized user, which is dB. Ensuring the required level of confidentiality is confirmed by an estimate of the peak signal-to-noise ratio in case of unauthorized access, which is equal to dB. Conclusions. The scientific novelty of the results obtained is as follows: for the first time, two methods of processing video images at the quantization stage have been proposed. The proposed technologies fulfill the assigned tasks to ensure the required level of confidentiality at a given level of confidence. Simultaneously, the method of using encryption tables has a higher level of cryptographic stability than the method of using the key matrix. It is due to a a more complex mathematical apparatus. Which, in turn, increases the time for processing the tributes. To fulfill the requirement of data availability, it is proposed to use arithmetic coding for info-normative blocks, which should be more efficient compared with the methods of code tables. So, the method of using the scoring tables has greater cryptographic stability, and the method of using the matrix-key has higher performance. Simultaneously, the use of arithmetic coding will satisfy the need for accessibility by reducing the initial volume.
Social Value Systems and the Mental Health of International Students During the COVID-19 Pandemic
Authors: Humphrey Ashley , Forbes-Mewett Helen
Published: July 2021

Australian universities are understood to have the highest number of international students per capita worldwide. The sector contributes over $40 billion to the national economy and sustains many thousands of jobs. Despite their importance to the Australian economy and society, international students are often overlooked in mainstream health promotion and support services. Of the many difficulties and hardships international students experience, mental health presents a significant problem. Evidence indicates that the mental health of international students was declining before the COVID-19 pandemic took hold in Australia. The impact of the pandemic appears to have exacerbated this issue. Our findings from an online survey (n=135) and semi-structured interviews (n=20) reinforce the importance of international students maintaining close social connections for optimizing their mental health. They also bring clarity to the challenges students from highly socially engaged (collectivistic) cultures face, when studying in individualistic environments like Australia amid the COVID-19 pandemic.
КРОК НАЗУСТРІЧ НАТО
Authors: Романенко Євген
Published: July 2021

Зазначено, що російська окупація Криму, дестабілізація схід- ної України і провокації, які Росія влаштовує в повітряному просторі країн – учасниць ЄС, підірвали систему безпеки, встановлену після холодної війни. Існує загроза військової атаки і окупації території Європи. Водночас озбро- єні контрабандисти переправляють велику кількість нелегальних мігрантів через Середземне море і джихадисти постійно здійснюють нові теракти. До- ведено, що в Європі лише українська армія має досвід ведення бойових дій з російськими військами, тому вона може бути корисною для нового оборон- ного об’єднання. Тож політичне та військове керівництво країни отримало б користь, запропонувавши Постійному структурованому співробітництву з питань безпеки та оборони (PESCO) військове партнерство для співпраці у сфері оборони з країнами – членами ЄС, як це вже зробила Грузія.

Схарактеризовано, що на відміну від попереднього рамкового закону, який носив переважно декларативний характер і складався лише з 12 ста- тей, ухвалений Закон України “Про національну безпеку України” забезпе- чує більш чітке регулювання дій Української держави з протидії зовнішній і внутрішній агресії. Визначено вичерпний перелік та компетенцію держав- них органів та військових формувань, які за це відповідальні. Ці органи фор- мують сектор безпеки і оборони.

Крім того, закон замислювався як рамковий, тому для реалізації всього йо- го потенціалу потрібна робота над іншими законопроектами, які будуть уточ- нювати й розвивати ідеї закону про нацбезпеки. Для цього необхідно прийня- ти або внести зміни до шести законів. Йдеться про нові закони: про СБУ; про створення комітету ВРУ для контролю над СБУ і органами розвідки; про роз- відувальну діяльність; про прозорість закупівель у сфері безпеки й оборони; внесення змін до закону про державну таємницю.
ДОСЛІДЖЕННЯ ПРОДОВОЛЬЧОЇ БЕЗПЕКИ КРАЇНИ В УМОВАХ КРИЗИ
Authors: Залізнюк Вікторія
Published: July 2021

Досліджено продовольчу безпеку країни в умовах кризи. Ос- новними загрозами продовольчої безпеки України можна вважати політичні загрози, перевищення порогового рівня імпорту, диспропорція цін на про- довольчому ринку, слабкий платоспроможний попит населення, слабороз- винена система аналізу, оцінки і прогнозування динаміки розвитку агро- продовольчого ринку. Для підвищення рівня продовольчої безпеки країни необхідною умовою є державна політика, здатна забезпечувати стабільний розвиток вітчизняного агропромислового комплексу на тлі ризиків і загроз.

Визначено головні ризики, що загрожують стану продовольчої безпеки України в найближчій перспективі, а саме: збільшення частки посівних площ під технічні культури, що веде до зменшення частки посівних площ під про- довольчі культури; відсутність аналогів імпортного устаткування і, як наслі- док, зниження темпів модернізації ряду галузей агропромислового комплек- су; недостатня розвиненість інфраструктури транспортування, руху товару і зберігання харчової продукції; макроекономічні чинники й коливання ва- лютного курсу; зростання цін на матеріально-технічні засоби та енергоресурси; епізоотичні ризики, вияв яких найбільш імовірний у разі виникнення та поширення в країні осередків особливо небезпечних і карантинних хвороб тварин, пов’язаних у тому числі з імпортованими тваринами — переносни- ками збудників хвороб або з переміщенням збудників хвороб з території су- міжних держав.

Зроблено висновок, що забезпечення продовольчої безпеки — це повне самозабезпечення, або підтримання критичного мінімуму рівня виробни- цтва. Виявлені ризики продовольчої безпеки формують загрози, здатні при- звести до недотримання граничних критеріїв продовольчої безпеки. Для забезпечення стійкості економічного розвитку потрібна реалізація заходів державного регулювання, спрямованих на стабілізацію та підтримку продо- вольчої безпеки країни.
ДИСФУНКЦІЇ БЮРОКРАТИЧНОГО УПРАВЛІННЯ: ОКРЕМІ ПИТАННЯ
Authors: Іваненко Олена
Published: July 2021

Досліджується природа і сутність бюрократії як явища дер- жавно-політичної дійсності. Наголошується, що протягом тривалого часу концепція бюрократичного управління визналася найбільш раціональною та ефективною у європейській традиції державного управління. Проте на сьо- годнішній день відсутній єдиний підхід щодо розуміння сутності бюрократії, а також її співвідношення із такими поняттями, як державне управління, пу- блічний менеджмент, апарат державної влади тощо. У зв’язку з цим, як ніко- ли, актуалізуються наукові розвідки в частині дослідження природи та сут- ності бюрократичного управління, що, своєю чергою, сприятиме уникненню в подальшому термінологічної та світоглядно-ідеологічної плутанини.

На сьогодні в наукових колах існує два діаметрально протилежних підхо- ди до визначення бюрократії як явища державно-правової дійсності: перший підхід є квінтесенцією аналізу антибюрократичної марксистської критики, яка, навіть, в сучасних умовах не втратила своєї актуальності, а її базові поло- ження становлять науковий інтерес при вивченні проблематики державно- го управління; сутність стисло зводиться до фіксації дисфункцій державної управлінської системи; сутністю другого підходу є ототожнення останнього з державним управлінням, коли бюрократія розуміється як раціонально ор- ганізована система державного управління, яка створює найефективніший механізм реалізації управлінських рішень.

Запропоновано в подальшому виходити з розуміння бюрократії як струк- турованої та ієрархічно вибудованої системи висококваліфікованих спе- ціалістів інтелектуальної праці, які мають високий рівень професійної під- готовки, інтелігенте походження, незаплямовану репутацію, ідеологічне виховання в дусі пріоритетності загальнодержавного добробуту, признача- ються на посади за результатами конкурсних відборів та якісно здійснюють свою професійну діяльність на виконання функцій держави. Наголошується на тому, що усі “негативні” ознаки бюрократичного управління, які виокрем- люють науковці, слід розглядати як дисфункції бюрократії. Таким чином, переносячи акцент із боротьби з бюрократією, увагу потрібно зосередити на виявленні негативних факторів здійснення державного управління та вироб- ленні шляхів їх подолання.