transport problems
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2021 ◽  
Vol 12 (3) ◽  
pp. 181-186
Author(s):  
Mohamed IJIM ◽  
Salma AITBATAHAR ◽  
Lamyae AMRO

Background: Health professionals have undergone very high levels of workload and pressure since the COVID-19 epidemic. Purpose: This study aims to assess the psychological impact of COVID-19 on health professionals at the Mohammed VI University Hospital. From May 31 to June 22, 2020. Methods: This is a cross-sectional study carried out among professionals of the Mohammed VI University Hospital in Marrakech using a questionnaire measuring the psychological impacts; the event impact scale - revised (IES-R), An exploratory and bivariate factor analysis was carried out to exploit the results. Results; 117 people answered the questionnaire, 66.67% were women, the average age was 30 years with extremes ranging from 25 to 60 years, 46.15% were doctors, 46.15% were nurses, 25.65% of participants lived alone, while 74.35% with families, after the start of the epidemic, 51 people lived in one of the hotels dedicated to housing and confinement. 28.2% or 33 people had declared transport problems. Of the participants in the study, 53.84% presented with insomnia, 12.82% (15) described aggression, and somatization was presented by 9 people (7.69%), nightmares by 9 others (7.69%) and intense fear by 3 people. 7.7% or 9 people who have already consulted the psychiatric listening cell during this period. The IES-R score is calculated at 41.94 or in favor of a post-traumatic stress disorder prevalent in this sample, with a score of avoidance at 12.76, intrusion of memories at 18.58 and hyperactivity at 10.58. Conclusion: unwanted psychological impacts are prevalent among our healthcare professionals.


Author(s):  
A. T. Tleuberdinova ◽  
V. B. Kulik ◽  
X. V. Kulik

The purpose of the study is to determine the role and importance of transport infrastructure for the accelerated development of rural areas, the growth of agro-industrial production and improving the quality of life of the population of villages. In the study was used a structural-functional approach, a review of scientific publications by foreign and domestic scientists devoted to the study of transport problems in rural areas, interregional logistics, the state program for infrastructure development «Nurly Zhol», as well as data from the Agency on Statistics of the Republic of Kazakhstan. The authors conducted a comparative analysis of the main trends in the development of the road infrastructure of rural areas of the country, providing economic communication with other territories, the mobility of the rural population. According to the indicators of the density of roads and railways, the coefficients of the provision of transport infrastructure in rural areas of the country's regions are calculated. The regions were grouped into three categories of equipment (high, medium, low), which, according to the authors, allows determining the priority of measures of programs for the construction and reconstruction of roads, as well as the importance of their implementation for the economic recovery of rural areas. Based on the analysis, recommendations on improving the transport infrastructure of rural areas are given, which are of interest to regional and local authorities, state infrastructure development management structures, as well as scientists, doctoral students whose research interests correspond to this topic.


2021 ◽  
Vol 14 (2) ◽  
pp. 53-58
Author(s):  
Iwan Nugraha Gusniar ◽  
Aqsal Sheva Putra

In 2007 the government has targeted rice production to reach 61 million tons of dry milled grain (GKG) through the National Rice Production Improvement Program (P2BN). To support this program, it is not only about inputs in the form of area and types of plants cultivated, but also about the need for agricultural tools and machines as supporting factors for farming. The role of mechanization engineering and technology is one of the efforts to create a better and more efficient agricultural system, which includes the provision of machinery and equipment, encouraging farmers to increase land productivity, overcoming transport problems and improving the quality of land and agricultural products. The development of mechanization technology based on physical and socio-economic conditions will have a positive impact on change and encourage the development of agricultural businesses.


Author(s):  
Serhii Zabolotnii ◽  
Artem Honcharov ◽  
Sergii Mogilei

The paper regards a specific class of optimization criteria that possess features of probability. Therefore, constructing objective function of optimization problem, the importance is attached to probability indices that show the probability of some criterial event or events to occur. Factor analysis has been taken for the main method of constructing objective function. Algorithm for constructing objective function of optimization is done for criterion of minimization risk level in multimodal transportations that demanded demonstration data. The application of factor analysis in classical problem solution was shown to give the problem a more distinct analytical interpretation in solving it.


Author(s):  
Jessica Cuevas-Castilleja ◽  
Armando Martínez-Luz ◽  
Marcelo Adán López-Arzate ◽  
Itzel Arlette Ramírez-García ◽  
Gustavo Mora-Aguilera ◽  
...  

<p>The objective of this work was to determine the impact of COVID-19 on productive activities of farmers and extensionist, and the level of application of Integrated Pest Management (IPM) in urban agriculture in Xochimilco, Milpa Alta, Tláhuac, Tlalpan, Magdalena Contreras and Cuajimalpa at Mexico City, a metropolitan area with a high SARS-CoV-2 positive cases. In 2020, a digital survey was applied to a total of 108 farmers and extensionists during the first COVID-19 epidemic wave. The sanitary emergency reduced the continuity of the extension service. However, this was carried out with digital technologies including photographs submitted by WhatsApp for pest diagnosis purposes. During the maximum COVID-19 peak (July, 2020), only 14% of farmers declined to sowing the summer fall season 2020. The majority established corn and, to a lesser extent, vegetables in mixed topologies. However, the activity of agricultural workers was reduced to 50%. Up to 75% of farmers reported losses of 20% derived from the epidemic. The major pest control strategy was mechanical, mainly for preventive purposes (67%) followed by chemical control (52%), biological at both preventive (8%) and curative (25%) levels, and the combination of more than one strategy in less than 10%. The data indicate an intuitive understanding of the IPM benefit, although the farmer is unaware of its principles. Faced with the growing demand for fresh, quality and safe food as a COVID-19 preventive strategy, urban agriculture has great development prospects by supplying local markets without transport problems caused by regional and global contingencies such as that caused by SARS[1]CoV-2. However, public and institutional policies of great vision are required. This work recognizes the work of farmers, as well as extensionists in favor of food security.</p>


Author(s):  
Olena Shandrivska ◽  
◽  
I. Yunko ◽  

This article aims to improve the theoretical and applied bases of activating the development of the light industry market in Ukraine by determining the factors that influence this process. Design / methodology / approach — In the article, authors use a set of scientific methods that ensured the conceptual integrity of the study, in particular: logic — to study the evolution of development of the light industry market; system аnd observation -to highlight the conceptual foundations of the light industry market; methods of dialectical reasoning, induction, deduction — to justify principles of development; statistical analysis — to study the peculiarities of the development of the light industry market in Ukraine (under the influence of the COVID pandemic — 19). The concept of sustainable development of the industry is adhered to in the work. Ukraine’s light industry is a multi-segment industry for the production of final consumer goods with rapid capital turnover. This industry has significant production potential in the process of meeting the domestic needs of consumers in non-food products. Nevertheless, the demand of the domestic market is predominantly met by imports. Only certain segments of light industry (for example, textile, etc.) have a promising growth in terms of entering foreign markets, but with a high share of tolling operations in Ukrainian exports. The light industry market needs to overcome the high dependence of imported raw materials; increase price competitiveness of domestic goods, reduction of illegal imports and shadow production of goods in the domestic market of light industry. The analysis of the influence of factors on the development of the light industry market revealed the following main trends in the industry: reduction of aggregate demand and production of goods (through consumers’ appeals to meet basic needs during the pandemic); consolidation of participants in the domestic market of light industry and exit from the market of weak counterparties; high dependence on world prices for raw materials, which has a low level of quality; growth of consignments of groupage cargoes; emergence of logistical and transport problems; deepening outsourcing in value chains; development of contactless delivery of goods to home; intensification of intra-industry competition and a significant share of the shadow sector; low productivity in the industry and shortage of qualified personnel. The industry needs to gain a highly competitive status through the production of high quality goods and increase supplies of products for export with a high share of value added, reduce the flow of used clothing, government support for the development of the sector. Prospects for the development of the sector are supported by the high adaptability of Ukrainian enterprises to changing market conditions, especially in the context of the COVID-19 pandemic. The development potential of the light industry market should be realized in terms of ensuring the competitiveness of Ukrainian products: by improving the quality of raw materials imports, improving the production structure, taking into account the innovative potential of the industry and the prospects for expanding the capacity of the light industry market, through the formation of industrial technology parks, clusters, vertically integrated structures with the involvement of representatives small and medium-sized businesses, as the most adaptable to the light industry market, as well as improving logistics chains for creating added value, a network of wholesale and branded trade, strengthening the marketing and logistics departments of light industry enterprises.


2021 ◽  
Vol 2131 (2) ◽  
pp. 022098
Author(s):  
E Yu Bursian ◽  
A M Demin

Abstract The paper proposes the improved skeleton method of handwritten characters recognition, which is based on the filtering procedure and the principle of alternating shading schemes of skeletonized area on the 4- and 8-timeslinked raster. The procedure of high-frequency filtration based on discrete real cosine transformation or discrete complex Fourier transform with automatic selection of filtration parameters makes it possible to significantly improve the image quality of handwritten symbols, in particular, to eliminate in many cases thin bridges between the areas of symbol element representation. The principle of alternating the painting schemes along the 4- and 8-timeslinked raster makes it possible to get the wave front of the skeletonized area close to a circle. In this case, the broken lines representing the branches of the skeleton graphs retain the shapes of the symbols. Numerical experiments on the construction of skeleton sets and skeleton graphs for recognizable handwritten symbols located in the cells of the tables of logistic transport problems have been performed. Software implementation of the method is proposed.


2021 ◽  
Vol 18 (5) ◽  
pp. 544-553
Author(s):  
V. V. Donchenko ◽  
A. N. Shumskiy

Introduction. The rapid growth of the country’s car park and the increasing rate of traffic volume lead to various types of transport problems. This is especially acute in regulated areas located near logistics parks, as well as in industrial zones of cities. Here, in the general traffic flow, trucks prevail, which differ from passenger cars primarily in their overall dimensions and dynamic characteristics. For the uniformity of the traffic flow, a certain difference is compensated by specialized coefficients of converting to a conventional passenger car. The performed research is aimed at establishing the main methods used in bringing freight vehicles to a conventional passenger car and assessing the current coefficients of converting freight vehicles to a conventional passenger car by determining the value of the reduced traffic intensity.Methods and materials. Within the framework of the study performed, natural methods of data collection were used for the subsequent calculation. When analyzing certain parameters, mathematical models have been established that underlie certain values of the coefficients of converting trucks to a conventional passenger car.Results. In the course of the study, the authors classified the methods for determining the coefficients of bringing a truck to a conventional passenger car. The values of the reduction factors for some of them have been established, which can be used when calculating the parameters of the regulated section. The present value of road traffic on the set object of the study - the regulated intersection - has been calculated using different actuation coefficients established earlier. The results obtained are assessed.Conclusion. The analysis of the values obtained as a result of calculations showed their significant difference from each other with a difference of 12%, 53% and 300% of the value of the total (not reduced) intensity. Based on the results obtained, the main tasks of further research are determined.


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