THE INFLUENCE OF THE CONFIGURATION OF TRANSPORT WORK ON THE TIME PARAMETERS OF TRANSPORT SERVICES

In order to estimate the diversity of embryo cleavage relatives to embryo progress (blastocyst formation), time-lapse imaging data of preimplantation human embryo development were used. This retrospective study is focused on the topographic features and time parameters of the cleavages, with particular emphasis on the lengths of cleavage cycles and the genealogy of blastomeres in 2- to 8-cell human embryos. We have found that all 4-cell human embryos have four developmental variants that are based on the sequence of appearance and orientation of cleavage planes during embryo cleavage from 2 to 4 blastomeres. Each variant of cleavage shows a strong correlation with further developmental dynamics of the embryos (different cleavage cycle characteristics as well as lengths of blastomere cycles). An analysis of the sequence of human blastomere divisions allowed us to postulate that the effects of zygotic determinants are eliminated as a result of cleavage, and that, thereafter, blastomeres acquire the ability of own syntheses, regulation, polarization, formation of functional contacts, and, finally, of specific differentiation. This data on the early development of human embryos obtained using noninvasive methods complements and extend our understanding of the embryogenesis of eutherian mammals and may be applied in the practice of reproductive technologies.

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THE DEVELOPMENT AND SYSTEMATIC STUDY OF THE PROGRAM OF MEASURES ON IMPROVEMENT OF ORGANIZATION OF TRANSPORT SERVICE OF THE POPULATION IN THE METROPOLIS

the System analysis and logistics ◽

10.31799/2007-5687-2020-4-91-95 ◽

2020 ◽

Vol 4 (26) ◽

pp. 91-95

Author(s):

D. A. Smirnov ◽

Keyword(s):

Transport System ◽

Systematic Study ◽

Public Transport ◽

Road Network ◽

System Development ◽

Transport Service ◽

Transport Services ◽

The City

The article reveals the content of measures to improve the organization of transport services in the metropolis. The key directions of the city transport system development are considered. The analysis of the offered offers is carried out. Keywords: metropolis, transport development, public transport, street and road network.

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Electronic fee collection. Investigation of EFC standards for common payment schemes for multimodal transport services

10.3403/30318289 ◽

2015 ◽

Keyword(s):

Transport Services ◽

Multimodal Transport ◽

Payment Schemes

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The use of intelligent agents in modeling an integrated information system of transport logistics

Informatization and communication ◽

10.34219/2078-8320-2020-11-5-59-66 ◽

2020 ◽

Vol 5 ◽

pp. 59-66

Author(s):

Y.M. Iskanderov ◽

Keyword(s):

Information System ◽

Supply Chains ◽

Intelligent Agents ◽

Technological Processes ◽

Transport Services ◽

Wide Range ◽

Integrated Information System ◽

Multi Agent ◽

Transport Logistics ◽

Integrated Information

Aim. The use of intelligent agents in modeling an integrated information system of transport logistics makes it possible to achieve a qualitatively new level of design of control systems in supply chains. Materials and methods. The article presents an original approach that implements the possibilities of using multi-agent technologies in the interests of modeling the processes of functioning of an integrated information system of transport logistics. It is shown that the multi-agent infrastructure is actually a semantic shell of the information system, refl ecting the rules of doing business and the interaction of its participants in the supply chains. The characteristic of the model of the class of an intelligent agent, which is basic for solving problems of management of transport and technological processes, is given. Results. The procedures of functioning of the model of integration of information resources of the participants of the transport services market on the basis of intelligent agents are considered. The presented procedures provide a wide range of network interaction operations in supply chains, including traffi c and network structure “fl exible” control, mutual exchange of content and service information, as well as their distributed processing, and information security. Conclusions. The proposed approach showed that the use of intelligent agents in modeling the functioning of an integrated information system makes it possible to take into account the peculiarities of transport and technological processes in supply chains, such as the integration of heterogeneous enterprises, their distributed organization, an open dynamic structure, standardization of products, interfaces and protocols.

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Business Aviation in Russia: Specific Features and Prospects of Development

Economics and Management ◽

10.35854/1998-1627-2020-1-86-93 ◽

2020 ◽

Vol 26 (1) ◽

pp. 86-93

Author(s):

D. V. Slivinsky ◽

I. A. Fomina ◽

D. G. Menshikh

Keyword(s):

Systems Approach ◽

National Policy ◽

Civil Aviation ◽

Economic Growth Rate ◽

Factors Affecting ◽

Organization And Management ◽

Transport Services ◽

Business Aviation ◽

Wide Range

The presented study determines the role of business aviation in the modern economy and examines the specific features of its development in Russia.Aim. The study aims to analyze the development of business aviation in Russia and its correlation with economic development in general.Tasks. The authors determine the benefits of business aviation as a business tool, examine the specific features of the Russian business aviation market and problems of its development, and identify factors that affect the development of business aviation in Russia.Methods. This study uses the methods of comparative and retrospective analysis, cross-country comparison, systems approach, and expert analytics.Results. Business aviation is a new segment of civil aviation for Russia. Therefore, it is advisable to rely on foreign practices in the management of its development. In many countries, business aviation is a separate industry that specializes in providing transport services to a wide range of corporate clients and/or individuals. The development of this industry is associated with the economic growth rate and the development level of the national economy, and also depends on the national institutional specifics. This study describes the specific features of development of business aviation in Russia and problems arising in the organization and management of this type of business.Conclusions. The authors develop a system of factors affecting the development of business aviation in Russia, describe the major problems of this industry, and propose solutions. The results of this study can be used in the development (adjustment) of business aviation development strategies in Russia both at the industrial and corporate level, and in the implementation of the national policy in this field.

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Coordination of technology of railway operation of the Republic of Tajikistan and organization of railways in international traffic

Vestnik of the Railway Research Institute ◽

10.21780/2223-9731-2018-77-4-211-217 ◽

2018 ◽

Vol 77 (4) ◽

pp. 211-217 ◽

Cited By ~ 1

Author(s):

P. N. Pulatov

Keyword(s):

Rolling Stock ◽

Railway Transport ◽

Transport Services ◽

Railway Infrastructure ◽

External Conditions ◽

The Republic ◽

Railway Operation ◽

Required Quality

Current geopolitical and economic conditions for the functioning of railway transport in most post-Soviet states are such that it is extremely difficult to provide required quality of transport services and break-even operations at high expenses for maintaining the railway infrastructure and rolling stock. Dynamics of transportation of the Tajik Railway (TSR) is shown, which displays that most of its sections are classified as low-intensity ones. The paper proposes methodical principles, setting and qualitative analysis of the task of rationalization of operational work and organization of car flows for international transportation, taking into account the specifics of the Tajik Railway. There is a problem of complex maintenance of the efficiency of operational work in modern conditions based on the synthesis of the tasks of self-management (rational internal operational technology of the Tajik Railway) and coordination tasks (technological interaction with railway administrations of other states). Author substantiated the necessity of solving this problem. Proposed classification of technological restrictions and controlled variables in the performance of transport takes into account methods for changing external conditions for the functioning of the railway landfill and methods for increasing internal efficiency of its operation. The search for the solution of the problem involves direct search of variants along its ordered set with clipping of groups of variants that do not correspond to constraints, with the subsequent finding of compromise control over a set of effective alternatives.

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Urban Transport

10.1093/oso/9780190889760.003.0005 ◽

2018 ◽

Author(s):

José van

Keyword(s):

Urban Areas ◽

Urban Transport ◽

Transport Sector ◽

Public And Private ◽

Transport Services ◽

Ride Sharing ◽

The World ◽

Private And Public ◽

Selection Mechanisms

Platformization affects the entire urban transport sector, effectively blurring the division between private and public transport modalities; existing public–private arrangements have started to shift as a result. This chapter analyzes and discusses the emergence of a platform ecology for urban transport, focusing on two central public values: the quality of urban transport and the organization of labor and workers’ rights. Using the prism of platform mechanisms, it analyzes how the sector of urban transport is changing societal organization in various urban areas across the world. Datafication has allowed numerous new actors to offer their bike-, car-, or ride-sharing services online; selection mechanisms help match old and new complementors with passengers. Similarly, new connective platforms are emerging, most prominently transport network companies such as Uber and Lyft that offer public and private transport options, as well as new platforms offering integrated transport services, often referred to as “mobility as a service.”

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Comparison of phaco time parameters in eyes with and without glaucoma filtration surgery due to pseudoexfoliation glaucoma

European Journal of Ophthalmology ◽

10.1177/11206721211017758 ◽

2021 ◽

pp. 112067212110177

Author(s):

Ayse Gul Kocak Altintas ◽

Cagri Ilhan

Keyword(s):

Clinical Characteristics ◽

Pseudoexfoliation Glaucoma ◽

Filtration Surgery ◽

Glaucoma Filtration Surgery ◽

Mean Values ◽

Time Parameters ◽

The Mean ◽

Group 2 ◽

Surgical Manipulations ◽

Phaco Time

Purpose: To compare the phaco time parameters including ultrasound time (UST), effective phaco time (EPT), and average phaco power (APP) in eyes with pseudoexfoliation glaucoma (PEG) and had or had not glaucoma filtration surgery. Methods: In this retrospective comparative study, Group 1 was constructed with 84 PEG patients who had not operated previously, and Group 2 was constructed with 49 PEG patients who had glaucoma filtration surgery. The mean values of UST, EPT, and APP were compared. The preoperative clinical characteristics and surgical manipulations were also compared. Results: The mean ages and male-to-female ratios of the groups were similar ( p > 0.05, for both). There was no difference in the preoperative clinical characteristics, including biometric values between the groups ( p > 0.05, for all). Some surgical manipulations, including pupillary stretching ( p = 0.004), pupillary membrane peeling ( p = 0.021), iris hook using ( p = 0.041), and capsular tension ring implantation ( p = 0.041), were significantly performed more commonly in Group 2. Although the mean UST and EPT values were similar ( p > 0.05, for both), the mean APP value was significantly lower in Group 2 ( p = 0.011). Conclusion: The lower APP parameter was observed in PEG patients having had glaucoma filtration surgery. Needing more surgical manipulation to overcome poor pupillary dilation and weak zonular instability can be a reason for this result.

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A GIS-Based Methodology for Evaluating the Increase in Multimodal Transport between Bicycle and Rail Transport Systems. A Case Study in Palermo

ISPRS International Journal of Geo-Information ◽

10.3390/ijgi10050321 ◽

2021 ◽

Vol 10 (5) ◽

pp. 321

Author(s):

Alessandro Emilio Capodici ◽

Gabriele D’Orso ◽

Marco Migliore

Keyword(s):

High School ◽

Public Transport ◽

Choice Model ◽

Rail Transport ◽

Transport Systems ◽

Sustainable Mobility ◽

Transit System ◽

Modal Choice ◽

Transport Services ◽

Multimodal Transport

Background: In a world where every municipality is pursuing the goals of more sustainable mobility, bicycles play a fundamental role in getting rid of private cars and travelling by an eco-friendly mode of transport. Additionally, private and shared bikes can be used as a feeder transit system, solving the problem of the first- and last-mile trips. Thanks to GIS (Geographic Information System) software, it is possible to evaluate the effectiveness of such a sustainable means of transport in future users’ modal choice. Methods: Running an accessibility analysis of cycling and rail transport services, the potential mobility demand attracted by these services and the possible multimodality between bicycle and rail transport systems can be assessed. Moreover, thanks to a modal choice model calibrated for high school students, it could be verified if students will be really motivated to adopt this solution for their home-to-school trips. Results: The GIS-based analysis showed that almost half of the active population in the study area might potentially abandon the use of their private car in favour of a bike and its combination with public transport systems; furthermore, the percentage of the students of one high school of Palermo, the Einstein High School, sharply increases from 1.5% up to 10.1%, thanks also to the combination with the rail transport service. Conclusions: The GIS-based methodology shows that multimodal transport can be an effective way to pursue a more sustainable mobility in cities and efficiently connect suburbs with low-frequent public transport services to the main public transport nodes.

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Design strategy of ultrasmall Gd2O3 nanoparticles for T1 MRI with high performance

New Journal of Chemistry ◽

10.1039/d1nj00508a ◽

2021 ◽

Author(s):

Jianfeng Yang ◽

Pengyuan Shan ◽

Qingling Zhao ◽

Shuquan Zhang ◽

Lanlan Li ◽

...

Keyword(s):

Magnetic Resonance Imaging ◽

Magnetic Resonance ◽

High Performance ◽

Design Strategy ◽

Resonance Imaging ◽

Relative Time ◽

Time Parameters ◽

Gd2o3 Nanoparticles

It is still a big challenge for designing Gd3+ based nanoparticles (NPs) for T1 MRI (Magnetic Resonance Imaging) with high performance and clarifying the effects of relative time parameters for...

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