bluuebunny/crossref_metadata_2025 huggingface dataset:
Beetle antennae search without parameter tuning (BAS-WPT) for multi-objective optimization
Authors: Jiang Xiangyuan , Li Shuai
Published: April 2021

Beetle antennae search (BAS) is an efficient meta-heuristic algorithm inspired
by foraging behaviors of beetles. This algorithm includes several parameters
for tuning and the existing results are limited to solve single objective
optimization. This work pushes forward the research on BAS by providing one
variant that releases the tuning parameters and is able to handle
multi-objective optimization. This new approach applies normalization to
simplify the original algorithm and uses a penalty function to exploit
infeasible solutions with low constraint violation to solve the constraint
optimization problem. Extensive experimental studies are carried out and the
results reveal efficacy of the proposed approach to constraint handling.
An adaptive eco with weighted feature for visual tracking
Authors: Zhou Yan , Guo Hongwei , Wang Dongli , Liao Chunjiang
Published: April 2021

The efficient convolution operator (ECO) have manifested predominant results in
visual object tracking. However, in the pursuit of performance improvement,
the computational burden of the tracker becomes heavy, and the importance of
different feature layers is not considered. In this paper, we propose a
self-adaptive mechanism for regulating the training process in the first
frame. To overcome the over-fitting in the tracking process, we adopt the
fuzzy model update strategy. Moreover, we weight different feature maps to
enhance the tracker performance. Comprehensive experiments have conducted on
the OTB-2013 dataset. When adopting our ideas to adjust our tracker, the
self-adaptive mechanism can avoid unnecessary training iterations, and the
fuzzy update strategy reduces one fifth tracking computation compared to the
ECO. Within reduced computation, the tracker based our idea incurs less than
1% loss in AUC (area-undercurve).
Saturation-allowed zeroing neural networks activated by various functions for time-varying quadratic programming
Authors: Guo Xiaoyu , Liu Mei , Zhao Qinglin , Hu Bin , Lu Huiyan , Jin Long
Published: April 2021

Zeroing neural networks (ZNN) approach, has been presented to solve a lot of
time-varying problems activated by monotonically increasing functions.
However, the existing ZNN models for timevarying quadratic programming based
on ZNN approach may be different from each other in structures, but share two
common restrictions, i.e., the function must be convex and unbounded. In
order to relax the above restrictions in solving time-varying quadratic
programming (TVQP) problems, this paper proposes a saturation-allowed
zeroing neural networks (SAZNN) model based on the ZNN approach. Comparing
with existing models, the activation function (AF) of SAZNN model tolerates
more kinds of functions, e.g., saturation function, non-convex function and
unbounded function. Finally, this paper provides simulation results
synthesized by the proposed SAZNN model activated by various AFs and
verifies the superiority of the proposed SAZNN model in terms of
convergence, efficiency and stability.
Chaos-based second-order bas for multimodal function optimization
Authors: Li Xiaoxiao , Zhou Xuefeng , Xu Zhihao , Tang Guanrong
Published: April 2021

Aiming at solving a drawback of the second-order beetle antenna search
(SOBAS), a variant of the beetle antenna search (BAS), that it is difficult
to find the global optimal solution and the low convergence accuracy when
applied to the multimodal optimization functions with high dimension or
large variable region, a chaotic-based second-order BAS algorithm (CSOBAS)
is proposed by introducing chaos theory into the SOBAS. The algorithm mainly
has three innovations: 1) chaos initialization: choosing the one with the
smallest fitness function value from twenty beetles with different positions
for iterative search; 2) using chaotic map to tune the randomization
parameter in the detection rule; 3) imposing a chaotic perturbation on the
current beetle to hope to help the search to jump out the local optimal
solution. Eight different chaotic maps are used to demonstrate their impact
on the simulation results. With six typical multimodal functions,
performance comparisons between the CSOBAS and the SOBAS are conducted,
validating the effectiveness of the CSOBAS and its superiority compared to
the SOBAS. What?s more, the CSOBAS with an appropriate chaotic map can
achieve a very good convergence quality compared to other swarm intelligence
optimization algorithms while maintaining an individual.
Population based optimization via differential evolution and adaptive fractional gradient descent
Authors: Liu Zijian , Luo Chunbo , Ren Peng , Wang Tingwei , Min Geyong
Published: April 2021

We propose a differential evolution algorithm based on adaptive fractional
gradient descent (DE-FGD) to address the defects of existing bio-inspired
algorithms, such as slow convergence speed and local optimum. The crossover
and selection processes of the differential evolution algorithm are discarded
and the adaptive fractional gradients are adopted to enhance the global
searching capability. For the benchmark functions, our proposed algorithm
Specifically, our method has higher searching accuracy than several state of
the art bio-inspired algorithms. Furthermore, we apply our method to
specific tasks - parameters estimation of system response functions and
approximate value functions. Experiment results validate that our proposed
algorithm produces accurate estimations and improves searching efficiency
Research on ultrasound image of interventional catheterization processing method based on wavelet transform and fuzzy theory
Authors: Liang Chenyang , He Ning
Published: April 2021

Interventional catheterization can help patients to accurately assess the
condition, early diagnosis and intervention. Confirming the location of
catheter by ultrasound has the advantages of real-time imaging,
non-invasive, radiative, fast and convenient. Due to speckle noise and
similar acoustic impedance, ultrasound images are not clear. In this paper
an ultrasonic image processing algorithm based on wavelet transform and
fuzzy theory is proposed. First, logarithmic transformation of ultrasound
images is used to convert multiplicative noise into additive noise. Then the
wavelet coefficients of the image are obtained by multiscale wavelet
transform. The high frequency wavelet coefficients of the image are denoised
by thresholding, and the low-frequency wavelet coefficients of the image are
processed by fuzzy enhancement. Finally, the processed image is obtained
through wavelet reconstruction and exponential transformation. Experiments
show that this proposed method can effectively improve the visual effect of
images.
Open-source projects for autonomous robotics and systems: A survey
Authors: Khan Ameer , Li Shuai , Chen Dechao , Li Yangming
Published: April 2021

Open-Source has not only removed the monopoly of the few technological
companies, but has also distributed the knowledge, at no cost. With
knowledge moves on from person to person, and each person adds his/her
contribution to the past work, a knowledge production chain keeps rolling,
greatly reducing the effort to re-invent wheels. It allows the public
availability of data and enables the addition, modification, and edition of
data more efficiently at a faster pace. Robots, considered as a replacement of
man-power are of meticulous interests for researchers in the past few
decades. Their immunity to walk and talk more or less like a human is worth
praising, but this radical change was not so obvious a decade or two ago
before the wide propagation of open-source, the continuous spread of
research work around the world allows the brilliant minds to add their
pieces to incrementally growing joint efforts. It has revolutionized the
robotics from the simple remote-control cars to the self-driven cars. This
survey summarizes main stream open source projects emerging in recent years
and expects to increase the exposure of existing open source projects and
increase the popularity of them, with an intention to further reduce
unnecessary effort to re-invent existing systems.
Human action recognition based on deep network and feature fusion
Authors: Wang Dongli , Yang Jun , Zhou Yan , Zhou Zhen
Published: April 2021

Feature representation is of vital importance for human action recognition.
In recent few years, the application of deep learning in action recognition
has become popular. However, for action recognition in videos, the advantage
of single convolution feature over traditional methods is not so evident. In
this paper, a novel feature representation that combines spatial and
temporal feature with global motion information is proposed. Specifically,
spatial and temporal feature from RGB images is extracted by convolutional
neural network (CNN) and long short-term memory (LSTM) network. On the other
hand, global motion information extracted from motion difference images using
another separate CNN. Hereby, the motion difference images are binary video
frames processed by exclusive or (XOR). Finally, support vector machine
(SVM) is adopted as classifier. Experimental results on YouTube Action and
UCF-50 show the superiority of the proposed method.
Crystal structure of K3EuSi2O7
Authors: Kovac Sabina , Dabic Predrag , Kremenovic Aleksandar
Published: April 2021

As part of research on the flux technique for growing alkali rare-earth elements (REE) containing silicates, tripotassium europium disilicate, K3EuSi2O7, was synthesized and characterized by single-crystal X-ray diffraction. It crystallizes in the space group P63/mcm. In the crystal structure of the title compound, one part of the Eu cations are in a slightly distorted octahedral coordination and the other part are in an ideal trigonal prismatic coordination environment. The disilicate Si2O7 groups connect four EuO6 octahedra and one EuO6 trigonal prism. Three differently coordinated potassium cations are located between them. Silicates containing the larger rare earth elements usually crystallize in a structure that contains the rare-earth cation in both a slightly distorted octahedral and an ideal trigonal prismatic coordination environment.
DNA Methylation GrimAge and Incident Diabetes: The Coronary Artery Risk Development in Young Adults (CARDIA) Study
Authors: Kim Kyeezu , Joyce Brian T. , Zheng Yinan , Schreiner Pamela J. , Jacobs David R. , Catov Janet M. , Shikany James M. , Carnethon Mercedes R. , Greenland Philip , Van Horn Linda V. , Allen Norrina B. , Lloyd-Jones Donald M. , Gunderson Erica P. , Hou Lifang
Published: April 2021

DNA methylation (DNAm)-based biological age (epigenetic age) has been suggested as a useful biomarker of age-related conditions including type 2 diabetes (T2D), and its newest iterations (GrimAge measurements) have shown early promise. In this study, we explored the association between epigenetic age and incident T2D in the context of their relationships with obesity. A total of 1,057 participants in the Coronary Artery Risk Development in Young Adults (CARDIA) study were included in the current analyses. We stratified the participants into three groups: normal weight, overweight, and obese. A 1-year increase of GrimAge was associated with higher 10-year (study years 15–25) incidence of T2D (odds ratio [OR] 1.06, 95% CI 1.01–1.11). GrimAge acceleration, which represents the deviation of GrimAge from chronological age, was derived from the residuals of a model of GrimAge and chronological age, and any GrimAge acceleration (positive GrimAA: having GrimAge older than chronological age) was associated with significantly higher odds of 10-year incidence of T2D in obese participants (OR 2.57, 95% CI 1.61–4.11). Cumulative obesity was estimated by years since obesity onset, and GrimAge partially mediated the statistical association between cumulative obesity and incident diabetes or prediabetes (proportion mediated = 8.0%). In conclusion, both older and accelerated GrimAge were associated with higher risk of T2D, particularly among obese participants. GrimAge also statistically mediated the associations between cumulative obesity and T2D. Our findings suggest that epigenetic age measurements with DNAm can potentially be used as a risk factor or biomarker associated with T2D development.
DNA methylation GrimAge and Incident Diabetes: The Coronary Artery Risk Development in Young Adults (CARDIA) Study
Authors: Kim Kyeezu , Joyce Brian T. , Zheng Yinan , Schreiner Pamela J. , Jr. David R. Jacobs , Catov Janet M. , Shikany James M. , Carnethon Mercedes R. , Greenland Philip , Horn Linda V. Van , Allen Norrina B. , Lloyd-Jones Donald M. , Gunderson Erica P. , Hou Lifang
Published: April 2021

DNA
methylation-based biological age (epigenetic age) has been suggested as a useful
biomarker of age-related conditions including type 2 diabetes (T2D), and its newest
iterations (GrimAge measurements) have shown early promise. In this study, we
explored the association between epigenetic age and incident T2D, in the context
of their relationships with obesity.

A total of 1,057 participants
in the Coronary Artery Risk Development in Young Adults (CARDIA) study were
included in the current analyses. We stratified the participants into three
groups; normal weight, overweight, and obese. A one-year increase of GrimAge
was associated with higher 10-year (Y15 to Y25) incidence of T2D (OR=1.06, 95% CI=1.01-1.11). GrimAge
acceleration, which represents the deviation of GrimAge from chronological age,
was derived from the residuals of a model of GrimAge and chronological age, and
any GrimAge acceleration
(Positive GrimAA; having GrimAge
older than chronological age) was associated with significantly higher odds of 10-year
incidence of T2D in obese participants (OR=2.57, 95% CI=1.61-4.11). Cumulative
obesity was estimated by years since obesity onset, and GrimAge partially mediated
the statistical association between cumulative obesity and incident diabetes or
prediabetes (proportion mediated = 8.0%).

In conclusion, both older and accelerated GrimAge were associated with higher
risk of T2D, particularly among obese participants. GrimAge also statistically mediated
the associations between cumulative obesity and T2D. Our findings suggest
that epigenetic age measurements with DNA methylation can potentially be
utilized as a risk factor or biomarker associated with T2D development.
STUDY OF COMPARATIVE EXTRACTABILITY OF BIOLOGICALLY ACTIVE SUBSTANCES FROM ST. JOHN’S WORT HERB OF VARIOUS SERIES
Authors:   Ryazan State Medical University, Streltsova R.M. , Denisova А.B. ,   Ryazan State Medical University, Gromova Z.F. ,   Ryazan State Medical University
Published: April 2021

Aim. To study extractability of a complex of active and related substances and flavonoids from St. Johns Wort herb of various series and anufacturers and identification of factors affecting the quality of aqueous extracts from St. Johns Wort herb. Materials and Methods. The object of study was St. Johns Wort herb of four series of two manufacturers, and aqueous extracts obtained from these series of St. Johns Wort herb. Aqueous extracts were made in the infusion mode in accordance with the requirements of the Order of the Ministry of Health of the Russian Federation №751n of October 26, 2015. The ratio of raw materials and extractive solvent was 8:100. The obtained aqueous extracts were evaluated by color and smell parameters. A complex of biologically active and related substances extracted from St. Johns Wort herb was evaluated by the solid residue index. Quantitative determination of flavonoids in recalculation for rutin was performed by spectrophotometric method on Bio-RADSmartSpecPlus spectrophotometer at 410 nm wave length. Results. Raw materials of different series differ in external characteristics and fineness. Raw materials of 221218 series contain 17.46% of particles larger than 3 mm, and raw materials of 20218 series – 4.92%. Raw materials of 221218 series include more particles of the coarse parts of the plant. Raw materials of 10119 series have a more uniform distribution of particles by fractions, but a rather large number of small particles. The maximal solid residue was obtained from raw materials of 20218 series – 1.7716%, the minimal – from raw materials of 221218 series – 0.6183%. The maximal flavonoid content was found in aqueous extract obtained from raw materials of 20218 series – 1.988%, the minimal content – from raw materials of 221218 series – 0.6183%. A sufficiently high yield of flavonoids in the aqueous extract was established for raw materials of 10119 series – 1.9711%. Conclusions. It was found that raw materials containing more soft parts of plants and characterized by the presence of a higher percent of fine fractions of particles, have the best extractability. At present, in the SP (Russia) of the 14th edition, only fractions of St. Johns Wort herb with a particle size of more than 7 mm and less than 0.18 mm are normalized. In our opinion, it is reasonable to include requirements to particle size and their content for the main fractions of the feedstock.
COMORBID PATHOLOGY IN PATIENTS WITH BRONCHIAL ASTHMA: LITERATURE REVIEW
Authors:   Burdenko Voronezh State Medical University, Tribuntseva L.V. , Budnevsky A.V. ,   Burdenko Voronezh State Medical University, Ivanchuk Yu.S. ,   Burdenko Voronezh State Medical University, Shkatova Ya.S. ,   Burdenko Voronezh State Medical University, Tokmachev R.E. ,   Burdenko Voronezh State Medical University
Published: April 2021

The article contains a literature review that presents the results of studies of the prevalence of comorbidy in patients with bronchial asthma (BA), as well as the gender- and age-related characteristics of comorbidity in such patients. More than half of asthma patients suffer from the comorbid pathology, which negatively affects the clinical course of asthma, as well as the quality of life. The number of chronic comorbid diseases increases with age, on average to 5 comorbid conditions in BA patients aged 75 years and older. The most common diseases, the prevalence of which increases with age, are cardiovascular, ophthalmological and otolaryngological diseases and diseases of the musculoskeletal system. Female patients with BA, as a rule, are more likely to suffer from comorbid diseases, and on average have more comorbid pathologies than men. The comorbid diseases with the largest gender difference in prevalence are recurrent urinary tract infection, thyroid diseases, migraine and osteoporosis, which are prevalent in women. Among the factors and mechanisms influencing the presence and course of comorbid pathology in asthma patients, there are factors that have an effect before birth and during early childhood, systemic inflammation, hyperinsulinemia, leukotrienes and mitochondrial dysfunction. Despite the vast amount of data, research results are often quite contradictory; further investigations of the mechanisms underlying the relationship between comorbid pathology and asthma are necessary.
ANALYSIS OF OSMOLALITY AND ISOHYDRICITY OF EYE DROPS OF EXTEMPORANEOUS MANUFACTURE
Authors:   Ryazan State Medical University, Selezenev N.G. , Povetko M.I. ,   Ryazan State Medical University, Budanova N.A. ,   Center for Certification and Quality Control of Medicines, Aleksandrova T.V. ,   Center for Certification and Quality Control of Medicines
Published: April 2021

Aim. Analysis of osmolality and isohydricity of eye drops of extemporaneous manufacture for compliance with the requirements of the normative documents. Materials and Methods. The object of study was eye drops of extemporaneous manufacture according to formulations and technologies of the normative documents. To control determination of the permissible limits of osmolality, model eye drops with sodium chloride at concentration of 0.6%, 0.9%, 2.0% were manufactured. Osmolality of the eye drops was determined by a pharmacopeian method using МТ-5 thermoelectric milliosmometracryoscope. pH was measured by a method of ionometry using HANNA microprocessor pH/C meter. The results were statistically processed. Results. It was found that eye drops 2%, 3% collargol and 1% sodium thiosulfate solution do not comply with the normative parameters by osmolality. Such drops as 0.2% ascorbic acid; combined eye drops containing riboflavin, ascorbic acid and boric acid; riboflavin, ascorbic acid and glucose did not comply with the normative parameters by pH value. These drops have a strong shift of pH towards acidity. The value of pH was below 3.5. On the contrary, eye drops containing sodium hydrocarbonate, sodium tetraborate have an exceeding shift towards alkalinity with pH more than 8.5. Thus, the conducted study showed the necessity of introduction of certain changes to the composition of the above mentioned eye drops after consultation with ophthalmologists. Conclusion. In the work, technological and analytical study of osmolality and isohydricity of some official compositions of eye drops encountered in extemporaneous manufacture, was conducted. Using modern pharmacopeian methods, the mentioned parameters of eye drops were determined and compared with the normative parameters recommended by the governmental quality standards of General Pharmacopeia Monograph (GPM) «Ophthalmic Dosage Forms», and the necessity for correction of certain formulations of eye drops is shown.
OPINION OF OLDER AGE GROUPS OF MEDICAL, SOCIAL AND GERIATRIC CARE
Authors:   Moscow Regional Hospital for Veterans of Wars, Linichenko Yu.V. , Zudin A.B. ,   Semashko National Research Institute of Public Health, Konovalov O.E. ,   Semashko National Research Institute of Public Health,   People Friendship University of Russia, Vasiliev M.D. ,   Research Institute of Innovative Technologies
Published: April 2021

Background. The article deals with measures for providing medical and social assistance with the aim of preservation of health, improvement of the quality of life of the elderly and senile, and of their adaptation in the society. Aim. study of the opinion of elderly and senile people of the rendered medical, social and geriatric care. Materials and Methods. A survey of 456 residents of the Moscow region older than working age was conducted. All respondents at one time were patients of the Moscow Regional Hospital of Wars Veterans. Results. The majority of respondents noted availability of various types of medical care, but only a small part of them evaluated its quality positively. Among the reasons for dissatisfaction, the most frequently cited were the lack of specialist doctors, spending much time in the waiting room in visiting therapists and narrow specialists, ineffective treatment, payment for necessary medical services, waiting lists for inpatient treatment, and in some cases violation of the patients rights. Dissatisfaction with medical and social assistance was mainly related to the problems of disability registration and implementation of individual rehabilitation programs. Conclusion. The results of the survey for studying satisfaction of older people with medical, social and geriatric care should be used for elaboration of proposals for its improvement.
HEMODYNAMIC DISORDERS IN VARICOSE VEIN DISEASE
Authors:   Ryazan State Medical University, Kalinin R.E. , Suchkov I.A. ,   Ryazan State Medical University, Shanaev I.N. ,   Ryazan State Medical University, Yudin V.A. ,   Ryazan State Medical University
Published: April 2021

Aim. Duplex ultrasound scanning (DUS) is a routine diagnostic procedure in patients with varicose vein disease. DUS mostly evaluates the qualitative (anatomical) parameters of the disease. Still, it is difficult to assess the microcirculatory parameters in trophic disorders based only on the anatomy, therefore assessment of quantitative blood flow parameters is needed. Our aim was to determine the potentials of conventional DUS in assessment of the hemodynamic disorders in patients with varicose disease. Materials and Methods. The study included 583 patients with varicose disease, 348 of which had trophic alterations. The patients were divided into 4 groups according to the CEAP clinical classes. Standard Valsalva and Siegel tests were performed during DUS. The following parameters were assessed in the superficial and deep veins: diameter of veins, antegrade blood flow velocity, retrograde blood flow velocity, reflux time; in the perforator veins (PV) – diameter, maximum velocity and average velocity of reflux. Peripheral resistance index (RI) in the arteries accompanying the PV was also analyzed. Results. A statistically significant difference in the diameter of the GSV was obtained between classes C2 and C3, C3 and C4, but not between class C5, 6 and class C4. Similar findings were observed in the assessment of diameter of the PVs and the velocity of retrograde blood flow through them. A gradual increase in these parameters could be seen with the progression of the disease, but a statistically significant difference was obtained only between classes C2 and C3 for the diameter of the PV and the peak velocity of retrograde blood flow. As for the average blood flow velocity, a statistically significant difference was obtained between classes C2 and C3, C3 and C4. Arteries in the perforator bundles demonstrated low RI which may be attributed to the presence of an arteriolo-venular bypass. Statistically significant differences were obtained for CEAP classes C2 and C3. Conclusions. Ultrasound duplex scanning of the study with use of Superb Micro-Vascular Imaging mode is an effective method in assessing the quantitative and microcirculatory parameters of hemodynamic disorders in patients with varicose vein disease of the lower extremities. Trophic ulcers in varicose vein disease are not an obligatory component of the disease, but only its complication.
A PATIENT WITH INCREASED BODY WEIGHT WHO CONSIDERS HIMSELF HEALTHY, ON OUTPATIENT VISIT
Authors:   Medical Sanitary Unit №2, Matʼkova I.N. , Krylova I.A. ,   Samara State Medical University, Mukenova K.B. ,   Krasnoyarsk Central District Hospital
Published: April 2021

According to WHO forecasts, 60% of the worlds population (3.3 billion people) may be overweight (2.2 billion people) and obese (1.1 billion people) by 2030. Increased body weight and atherogenic dyslipidemia are independent risk factors for chronic non-infectious diseases, which, in turn, lead to premature mortality of the working population. Management of patients with increased body weight requires a complex change in their lifestyle and their consistent and sustained efforts. Taking into account the latest data on the contribution of abdominal obesity, dyslipidemia, fatty hepatosis to the risks for development of cardiovascular diseases, these patients are indicated the earliest therapeutic and preventive outpatient intervention. The success of treatment depends on the degree of motivation, the level of compliance of the patient and regular control throughout life. However, when a patient considers himself healthy, he hopes to solve the arising problems quickly and easily, which is often impossible for objective reasons. In this case, the fundamental attitude of the patient may be crucial in the success of treatment. In the article, a typical clinical case of overweight and of other risk factors for chronic non-infectious diseases at the stage of early clinical manifestations associated with increased risks of multiple comorbidities, is described. But the patient, considering himself quite healthy and the first clinical manifestations insignificant, faced with the necessity of regular medical monitoring and complex life-long intervention, partially follows doctors recommendations and eventually is shying away from solving problems. By focusing on a paternalistic or engineering model of relationships with the doctor, the patient significantly reduces the effectiveness of the earliest control of risk factors for chronic non-infectious diseases. Analyzing the presented clinical case, it is possible to draw attention of specialists to the necessity of rationalization of diagnostic and treatment programs in real outpatient practice.
El uso de internet en mujeres emprendedoras de zonas marginadas del sureste de México
Authors: Cab Pech Víctor Manuel , Domínguez Castillo José Gabriel , Cisneros Cohernour Edith Juliana
Published: April 2021

El emprendedurismo favorece el desarrollo endógeno de las comunidades indígenas, ya que mejora su calidad de vida, fortalece sus competencias, evita la migración, promueve el desarrollo sostenible, contribuye a la preservación del patrimonio cultural y favorece su inserción en la sociedad de la información y del conocimiento. En México, se ha constituido como uno de los temas prioritarios para el desarrollo económico del país; sin embargo, a pesar de los esfuerzos llevados a cabo por los gobiernos federales y estatales de la nación, todavía se observan serias dificultades para la participación de las mujeres rurales en este rubro. Por ello, en este trabajo se llevó a cabo un estudio cuantitativo en el que participaron 92 mujeres emprendedoras que se encontraban en zonas sociales y económicamente marginadas o de condiciones de pobreza extrema. En concreto, las participantes residían en tres sectores del interior del estado de Yucatán, en el sureste de México, y se dedicaban a la fabricación artesanal de ropa, alimentos, adornos para el hogar y juguetes. Los resultados muestran que solo 38 % cuenta con servicio de internet y que la mayoría tiene poco entrenamiento para usarlo; además, su costo es elevado. Entre las razones para no contar con internet en el hogar se pueden mencionar el que no exista conexión en el municipio (52 %) y el que ellas no lo consideren necesario (43 %). Asimismo, se puede indicar que usan internet principalmente para ver películas, tomar fotos y escuchar música, así como para revisar el correo electrónico; de hecho, solo 13 % sabe usar un programa de contabilidad para su negocio.
ATIVIDADES EXPERIMENTAIS DE ELETRODINÂMICA CONSTRUÍDAS POR ALUNOS COM DEFICIÊNCIA VISUAL
Authors: Lombardo Evangelista Fábio , Severino da Silva Stênio
Published: April 2021

Os estudantes com deficiência visual carecem de abordagens didáticas que os incluam no ambiente de ensino regular. O objetivo dessa pesquisa é a elaboração e análise de uma proposta para discutir conceitos clássicos de Eletrodinâmica, junto a estudantes com essa especificidade. Para tanto, adotou-se a abordagem qualitativa, delineada pelo Estudo de Campo, no qual, a partir da coleta de dados e análise do material de um ensaio piloto, foram construídas as categorias de análise e reelaborada uma nova sequência didática para ser aplicada posteriormente. A partir de atividades experimentais, categorizadas na literatura, foram desenvolvidas algumas adequações ao material e ao procedimento metodológico para a planejamento piloto, aplicado junto à Associação Catarinense de Integração do Cego (ACIC) com a participação de seis alunos com deficiência visual e com idades entre 20 e 35 anos. As avaliações da pertinência destes materiais e do procedimento apresentaram-se como essenciais à reestruturação de uma segunda sequência didática. Como resultado, aponta-se algumas características dos materiais e procedimentos, consideradas relevantes para o auxílio no processo de ensino e aprendizagem de estudantes com e sem deficiência visual no ensino regular.
Traffic Congestion In Azadpur Mandi: A Study On The Largest Vegetables And Fruits Market Of Asia
Authors: Ekta Raman , Subhash Anand , Madha Suresh V. , Poonam Sharma , Anju Singh , Suraj Kumar
Published: April 2021

India’s intended nationally determined contribution emission which is safe, smart and sustainable green transportation network. Azadpur Mandi which is known for the biggest selling place of fruits and vegetable in Delhi is becoming a place of very heavy traffic area zone. People who are living nearby and the people coming to Azadpur Mandi facing a lot of traffic and also because of no proper direction hinted there people are not able to reach their destination on time. This paper assesses urban traffic congestions and its impact on the daily life of stakeholders and also advocates some possible solutions. In this research found results the number of vehicles has increased in the last ten to fifteen years. The total number of categorised vehicle has also increased. Azadpur Mandi has impacted the land value of the surroundings. The road infrastructure is not sufficient to cater to the traffic volume of this area. The number of lanes in this area is less. This paper outlines the problems of traffic congestion in Asia’s largest sabji (Vegetable) Mandi by using statistical tools. There are very few parking lots inside and outside of the Mandi. This paper investigates the goal 11 of Sustainable Development Goals (SDGs). Goal 11 says to make cities safe, resilience, sustainable. According to the Delhi Traffic police, Azadpur is one of the most accident-prone hotspots of Delhi.
Constituent Entities Of The Russian Federation With Cities Of Over One Million Inhabitants: The State Of And Trends In Their Internal Disparities
Authors: Pozdnyakova Tatyana M.
Published: April 2021

Sustainable development in Russia requires work to be done in a number of areas. One of the mechanisms for solving internal problems is to decrease the gaps in the level of socioeconomic development between the country’s regions. This article provides an overview of the current state of the internal disparities in the socioeconomic development of the constituent entities of the Russian Federation that include cities with a population of over one million.

The constituent entities of the Russian Federation were analyzed in terms of the concentration of their population in the administrative centres. The population concentration ratio for cities of over one million inhabitants and the population polycentricity ratio for the corresponding entities were calculated. The ranking of entities was carried out based on these indicators. An analysis of the “contributions” of cities and peripheral areas to the formation of the gross regional product of the studied entities of the Russian Federation was carried out. The economic concentration ratios of cities with over one million inhabitants were calculated. The relationship of this indicator with the population ratio was established. Based on this, the following categories were identified: entities that are not in danger of a population or economy hyper-concentration in the administrative centre; entities with moderate population concentration in the city of more than one million inhabitants combined with an upward trend in their economic concentration; and entities with a high concentration of the population and economy in the administrative centre and signs of decrease in the population and economic concentration.
The implementation for natural science online lecture with chemistry education base at Nurul Fadhillah school Bandar Setia
Authors:   Department of Chemistry, Universitas Negeri Medan, Medan 20221, Indonesia, Muchtar Zainuddin , Sari Sri Adelila ,   Department of Chemistry, Universitas Negeri Medan, Medan 20221, Indonesia, Rahmah Siti ,   Department of Chemistry, Universitas Negeri Medan, Medan 20221, Indonesia, Zubir Moondra ,   Department of Chemistry, Universitas Negeri Medan, Medan 20221, Indonesia, Selly Rini ,   Department of Chemistry, Universitas Negeri Medan, Medan 20221, Indonesia, Damanik Marini ,   Department of Chemistry, Universitas Negeri Medan, Medan 20221, Indonesia
Published: April 2021

The Covid-19 pandemic forces learning activities to change from classroom learning to online-based learning. Based on the results of the interview, it was found that the teachers at Nurul Fadhilah school did not yet have the readiness to manage online teaching and learning activities, especially in science subjects. The influencing factors are (1) understanding of basic science concepts (physics, chemistry, biology), (2) understanding of systematic online learning management and (3) mastery of Learning Management System (LMS) technology. Therefore, the aim of this activity is to implement LMS technology in the management of online science learning using a basic conceptual approach to chemistry education. LMS is a technology application developed specifically for managing classrooms, distributing learning materials and enabling collaboration between students and teachers online. The LMS used in this activity is Google Classroom. Based on the data, it is known that 65% of the teachers at Nurul Fadhilah School have not managed online science teaching and learning activities using LMS technology. The results of the systematic online science learning management workshop using the basic concepts of chemistry education and the implementation of LMS technology, especially Google Classroom, showed an increase, as many as 80% of teachers have created, designed and managed classes interactively using Google Classroom LMS technology and have integrated the concept of basic chemistry education in science learning. So that students are more happy and comfortable in learning online and are more disciplined in collecting assignments and teachers are more comfortable in managing and evaluating student assignments. Keywords: Natural science, Learning management system, Google classroom
Comparative Approach in Teaching German as the Second and Czech as the First Foreign Language: the Case of Prepositional Government of Verbs
Authors: Yelizaryeva M. A. , Alexandrova I. V.
Published: April 2021

The article focuses on the comparative approach in teaching German as the second foreign language simultaneously with Czech as the first foreign language at the Russian State University for the Humanities. The bachelor program “Slavistics and Central European studies: languages, culture and literature of the Czech Republic and Austria” at the RSUH has some unique features: from the first year of this program students learn simultaneously two foreign languages: Czech as the first foreign language and German as the second one, therefore, they often make mistakes in German due to the influence of their mother tongue, Russian, as well as English, learned at school, and Czech. If the teacher of German has a good command of the Czech language, he or she can use some similarities between German and Czech that have appeared due to their long-term language contact and convergent evolution. The prepositional government of some Czech and German verbs is one of these similarities that distinguish them from the Russian language. And many mistakes are made by students in their target languages due to the verbal government of Russian. But with that said this language transfer could be avoided or reduced if we show that plenty of German and Czech verbs have analogous verb government. In order to check this statement, we have made a set of exercises (substitution drill and translation “Czech – German”, “German – Czech”, “Russian – Czech, German”), which contained four couples of German and Czech verbs with prepositional government. The testing of these exercises on seven second-year-students of the RSUH has shown that such exercises could help students to focus on Czech-German grammatical similarities and reduce the influence of the Russian language.
Methods for Classifying Abbreviations Document Names (Based on the Material of the Modern German Language)
Authors: Kukina N. V.
Published: April 2021

The article offers options for the classification of abbreviations-documentary names on the basis of various characteristics. The following can be selected as the classification criteria: the number of components in an abbreviation, which affects its derivational potential; the structure of the abbreviation, i.e. the division of abbreviations into initial, syllabic and combined; the types of documents, for example: laws, regulations, agreements, et.; the classification on a thematic basis, i.e. in relation to the sphere of management and economics. This classification is mainly based on truncated components, which are more informative than initials. Among document names there are abbreviations consisting of purely German components and abbreviations that are borrowings or consisting of a combination of autochthonous and borrowed components. It is possible to classify documentary abbreviations by the presence of borrowings in their composition. The main attention in the article is paid to the classification by their place in the internal onomastic field. The names of documents used in the common European space and the names of documents with a narrower scope of distribution (Germany as a whole or in specific federal lands) are distinguished, which determines their entry into the nuclear or peripheral zone of the onomastic space. The presence of other onyms in the documentary names, among which toponyms, that characterize the effect of specific legal documents in a certain territory, occupy a special place. It is concluded that abbreviated document names represent a certain field of onomastics, the core of which are global document names, and that they represent a certain system, and not a simple set of abbreviated onyms.
On the Actualization of Peripheral Zones of Conceptual-Cognitive Frame “Woman”
Authors: Murashova L. P.
Published: April 2021

The relevance of this article is determined by the increasing interest of linguists in the results and principles of actualization of gender-inclusive concepts. Theoretical basis of the study of conceptual-frame mapping of knowledge, the structure of the conceptual cognitive frame “WOMAN” and its peripheral zones: subframes “Mother”, “Wife”, “Girl”, “Daughter”, “Sister” have been outlined in this article. Each subframe has been considered separately with the reliance on the analysis of narrow distribution of taxon lexemes of conceptual-cognitive subframes as a part of collocation models with prepositive and postpositive adjuncts taken by continuous sampling from the British National Corpus of the English language. Three semantic categories in the frame structure have been distinguished in the process of the categorization of data taken by continuous sampling: physical, mental, and social parameters. A number of subcategories has been identified in each category: physical parameters – age, physical conditions and abilities; appearance, mental parameters – character, behavior, knowledge, mental abilities, emotions and feelings, sociocultural parameters – origin, nationality, race, etc. Taking into consideration their density, we were able to find out what information is prominent in the consciousness of native speakers when peripheral zones of the frame are activated. The summary data of the analysis allow us to present a general picture of actualization of the peripheral zones in the conceptual-cognitive frame “WOMAN”.
НАЦІОНАЛЬНО-ПАТРІОТИЧНЕ ВИХОВАННЯ УЧНІВСЬКОЇ МОЛОДІ У ПЕДАГОГІЧНІЙ СПАДЩИНІ ПЕДАГОГІВ ЗАХІДНОГО РЕГІОНУ УКРАЇНИ (КІНЕЦЬ ХХ – ПОЧАТОК ХХІ СТ.)
Authors: Лемко Галина
Published: April 2021

У статті охарактеризовано один із аспектів наукової спадщини педагогів Західного регіону України кінця ХХ – початку ХХІ століття – національно-патріотичне виховання учнівської молоді. О.Вишневський, П. Лосюк, М. Стельмахович, Б. Ступарик наголошували, що національно-патріотичне виховання школярів має передбачати визнання таких вартостей: усвідомлення мовної, національної і культурної єдності українців; формування громадянина-патріота; готовність до активної праці з розбудови рідної держави, примноження надбань духовної культури; формування культури міжнаціональних взаємин та готовність стати на захист незалежності України.
РЕАЛІЗАЦІЯ ІНДИВІДУАЛІЗАЦІЇ ТА ПЕРСОНАЛІЗАЦІЇ НАВЧАННЯ ЗАСОБАМИ MOODLE
Authors: Осадча Катерина , Осадчий Вячеслав , Спірін Олег , Круглик Владислав
Published: April 2021

У статті проаналізовано засоби та інструментарій підтримки індивідуалізації й персоналізації навчання у системі дистанційного навчання Moodle. У процесі професійної підготовки майбутніх фахівців для підтримки індивідуалізації навчання засобами Moodle визначено налаштування окремих модулів, елементів та ресурсів платформи. Виділено основні переваги використання системи Moodle для організації персоналізованого навчання: гнучкість, зручність, модульність, економічна ефективність, інтерактивність, різноманіття контролю знань, використання журналу оцінок, засоби планування.
РЕДАКТОРСЬКО-ВИДАВНИЧА ДІЯЛЬНІСТЬ ФЕДОРА НАДЕНЕНКА
Authors: Ек Наталія
Published: April 2021

Статтю присвячено розкриттю основних напрямів редакторсько-видавничої діяльності Федора Надененка. Окреслено широку палітру нотних видань в упорядкуванні й під редакцією митця: зібрань творів українських композиторів-класиків М. Лисенка (20 тт.), К. Стеценка (5 тт.), Я. Степового (3 тт.), фортепіанних поліфонічних творів Й.-С. Баха, хорових, вокальних, фортепіанних творів сучасних українських композиторів. Досліджено роль Ф. Надененка в розвитку редакторсько-видавничої справи в Україні та значення його редакторсько-видавничої діяльності для збереження, публікації й популяризації творчості українських композиторів.
ХАРАКТЕРИСТИКА МОДЕЛІ ФОРМУВАННЯ КОМУНІКАТИВНОЇ КОМПЕТЕНТНОСТІ ЗДОБУВАЧІВ ПОЧАТКОВОЇ ОСВІТИ
Authors: Подановська Галина
Published: April 2021

Стаття присвячена проблемі аналізу експериментальної моделі формування комунікативної компетентності здобувачів початкової освіти. Виокремлено основні компоненти моделі, підкреслюється їх важливість у процесі формування комунікативної компетентності учнів початкової школи. Автор наголошує на взаємозв’язку компонентів моделі, які лише в комплексі дозволять домогтися більш високих навчально-виховних результатів в порівнянні з традиційною методикою підготовки кваліфікованого читача.
Shopping Tourism Development Through Top Five Products in Yogyakarta City, Indonesia
Authors: Wijayanti Ani , Pramezwary Amelda , Putri Emmita Devi Hari , Yulianto Atun , Nurcahyo R. Jati , Brahmanto Erlangga
Published: April 2021

Yogyakarta is a city tourism that has no natural tourism potential. Shopping tourism can become an alternative strategy to increase the expenditure and length of tourists stay in Yogyakarta. The research is a qualitative research. The research aims to examine shopping tourism products in Yogyakarta. The research attempts to identify top five products as the main magnetism of shopping tourism in Yogyakarta. Data analysis is conducted through reduction techniques. The research obtained top five culinary products, they are Gudeg, Bakpia, Bakmi Jawa, Kopi Joss, and Kipo, while the top five souvenir products are Batik, Silver, Dagadu, Wayang, and Miniature.
Accommodation Business Competition in Bali: Competitive Strategy for Star Hotel in Sanur
Authors: Wijaya Agung Rendra , Bendesa I Komang Gde , Wiranatha Agung Suryawan
Published: April 2021

Sanur area, with Kuta, are two of Bali’s pioneering tourism areas. Most of the star hotels in Bali are located in these two areas. This paper is intended to determine the conditions of competition in the accommodation business in Bali Province, especially competition between star hotels in Sanur Tourism Area, as well as to elaborate the competitive strategy to maintain business sustainability. Through primary data collection by interviewing 8 managers and 14 employees at 3-star hotels in the Sanur area in 2018, the Delphi method was used to find a viable competitive strategy to choose from. The results of the SWOT analysis showed that the hotel location near the beach, and the incompleteness of MICE facilities were the main strength and weakness respectively. On the other hand, Bali’s popularity as a world-class destination and unfair price competition were the main opportunity and threat facing the accommodation business in Sanur respectively. This research found the competitive strategy to use is to intensify the use of Information Technology in the form of digitizing accommodation businesses.