scholarly journals Going to Business or Intending in Science?

2020 ◽  
Vol 6 (3) ◽  
pp. 169-179
Author(s):  
R. S. Rogulin
Keyword(s):  
Mathematical Model ◽  
Job Search ◽  
Scientific Field ◽  
Economic Factors ◽  
Urgent Problem ◽  
Cheap Labor ◽  
Commercial Company ◽  
Catch Up ◽  
Additional Income ◽  
Growing Population

This paper discusses the urgent problem of Russian graduates: job search after graduation. It is shown that, in connection with the growing population of the country due to migrants, the arrival of cheap labor from neighboring countries and other economic factors, the search for a decent job as a graduate remains a difficult and relevant problem in modern Russia. The result of this study can be considered as follows. It is shown that there is the possibility of decent earnings in the scientific field of activity when working with students. A mathematical model and an algorithm for simulating the demonstrated situation are developed. It is shown when a graduate should start searching for additional income and when he can catch up with the total amount of money paid if he went to work in a commercial company. This research is purely theoretical.

CHINA — CAN RAPID ECONOMIC GROWTH CONTINUE?

2004 ◽  
Vol 49 (02) ◽  
pp. 255-272 ◽  
Author(s):  
ANDREA BOLTHO
Keyword(s):  
Economic Growth ◽  
Developing Countries ◽  
World Economy ◽  
Terms Of Trade ◽  
Resource Reallocation ◽  
Labor Policies ◽  
Cheap Labor ◽  
Rapid Economic Growth ◽  
The World ◽  
Catch Up

Between 1978 and 2000, Chinese GDP expanded more than seven-fold; present official projections suggest a further four-fold expansion to 2020. Is this feasible and, if so, what would be the consequences for the rest of the world? China has a huge catch-up potential and a vast resource of cheap labor. Policies are improving. The fiscal, employment and regional disparity problems, while serious, seem manageable. Hence, further rapid growth is possible. For the world economy this is bound to be beneficial thanks to resource reallocation, the growth of a large market and likely terms of trade gains. Developing countries, particularly in Asia, will, however feel a strong competitive challenge.

scholarly journals Heterogeneous Absorption of Antimicrobial Peptide LL37 inEscherichia coliCells Enhances Population Survivability

2018 ◽  
Author(s):  
Mehdi Snoussi ◽  
John Paul Talledo ◽  
Nathan-Alexander Del Rosario ◽  
Bae-Yeun Ha ◽  
Andrej Košmrlj ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Mathematical Model ◽  
Minimum Inhibitory Concentration ◽  
Cell Density ◽  
Inhibitory Concentration ◽  
Single Cell Level ◽  
Cell Level ◽  
E Coli ◽  
Rapid Absorption ◽  
Growing Population

AbstractAntimicrobial peptides (AMPs) are broad spectrum antibiotics that selectively target bacteria. Here we investigate the activity of human AMP LL37 againstEscherichia coliby integrating quantitative, population and single-cell level experiments with theoretical modeling. Our data indicate an unexpected, rapid absorption and retention of a large number of LL37 byE. colicells upon the inhibition of their growth, which increases the chance of survival for the rest of population. Cultures with high-enough cell density exhibit two distinct subpopulations: a non-growing population that absorb peptides and a growing population that survive owing to the sequestration of the AMPs by others. A mathematical model based on this binary picture reproduces the rather surprising behaviors ofE. colicultures in the presence of LL37, including the increase of the minimum inhibitory concentration with cell density (even in dilute cultures) and the extensive lag in growth introduced by sub-lethal dosages of LL37.

scholarly journals Spatial organization in microbial range expansion emerges from trophic dependencies and successful lineages

2020 ◽  
Vol 3 (1) ◽  
Author(s):  
Benedict Borer ◽  
Davide Ciccarese ◽  
David Johnson ◽  
Dani Or
Keyword(s):  
Mathematical Model ◽  
Range Expansion ◽  
Bacterial Communities ◽  
Spatial Organization ◽  
Individual Cell ◽  
Liquid Cultures ◽  
Cell Lineages ◽  
Genetic Segregation ◽  
Preferential Access ◽  
Growing Population

AbstractEvidence suggests that bacterial community spatial organization affects their ecological function, yet details of the mechanisms that promote spatial patterns remain difficult to resolve experimentally. In contrast to bacterial communities in liquid cultures, surface-attached range expansion fosters genetic segregation of the growing population with preferential access to nutrients and reduced mechanical restrictions for cells at the expanding periphery. Here we elucidate how localized conditions in cross-feeding bacterial communities shape community spatial organization. We combine experiments with an individual based mathematical model to resolve how trophic dependencies affect localized growth rates and nucleate successful cell lineages. The model tracks individual cell lineages and attributes these with trophic dependencies that promote counterintuitive reproductive advantages and result in lasting influences on the community structure, and potentially, on its functioning. We examine persistence of lucky lineages in structured habitats where expansion is interrupted by physical obstacles to gain insights into patterns in porous domains.

scholarly journals Sadharanikaran Model vs Mathematical Model: Analyzing their Relevance in Context of Social Media

2019 ◽  
Vol 7 ◽  
pp. 105-126
Author(s):  
Priya Shaw
Keyword(s):  
Mathematical Model ◽  
Social Media ◽  
Communication Process ◽  
Economic Factors ◽  
Social Psychological ◽  
The Difference ◽  
Political Economic ◽  
Western Perspective ◽  
Socio Economic Factors ◽  
Technological Communication

The communication process varies according to cultural, political, economic, social, psychological, socio-economic factors from one country to another. The term ‘communication’, however, has been accepted globally though the pattern of communication differs from one society to another. Communication scientists have tried to define communication in a particular context of a particular society. In this study, therefore, Sadharanikaran model from the Eastern perspective and Shannon and Weaver model from the Western perspective have been chosen to study the difference in the pattern of communication. The elements of the models have been studied along with the context of technological communication with particular reference to social media such as Facebook, WhatsApp and Skype.

Invisibilizing politics: Accepting and legitimating ignorance in environmental sciences

2019 ◽  
Vol 49 (6) ◽  
pp. 839-862 ◽  
Author(s):  
June Jeon
Keyword(s):  
Science And Technology Studies ◽  
Science And Technology ◽  
Scientific Field ◽  
Economic Factors ◽  
Social Production ◽  
Scientific Content ◽  
Scientific Institutions ◽  
The Social ◽  
Rules Of The Game

Although sociologists have explored how political and economic factors influence the formation of ignorance in science and technology, we know little about how scientists comply with external controls by abandoning their prior research and leaving scientific innovations incomplete. Most research in science and technology studies (STS) on ignorance has relied on structural and historical analyses, lacking in situ studies in scientific laboratories. Drawing on ethnographic research, this article examines the habitus of ignorance as a mechanism of the social production of ignorance. Scientists have a set of dispositions that establish practical contexts enabling them to ignore particular scientific content. Leaders of the organization repeatedly legitimate the abandonment of unfinished projects, while ordinary laboratory scientists internalize the normalized view that the scientific field is inherently opportunistic and that unfunded research should be left undone. A cycle of legitimation and acceptance of ignorance by actors at distinctive positions within the organization provides a mechanism of social control of scientific knowledge. As the mechanism is habitually self-governed by the rules of the game of current scientific institutions, the result is an indirect, although deeply subjugating, invisible and consolidating form of political and economic domination of the scientific field.

The Cutting Optimization of the CNC Bothway Panel Saw under the Technology Constraint

2011 ◽  
Vol 308-310 ◽  
pp. 908-913
Author(s):  
Yan Ma ◽  
Chun Mei Yang
Keyword(s):  
Mathematical Model ◽  
Heuristic Algorithm ◽  
Optimization Algorithm ◽  
Sheet Material ◽  
Cutting Process ◽  
Two Dimensional ◽  
Furniture Industry ◽  
Urgent Problem ◽  
Combination Rules ◽  
The One

This paper is based on the urgent problem of furniture industry that is to increase the utilization of sheet material and improve the speed of sheet material discharging as the goal. To the problem of the cutting and nesting of the artificial board of CNC bothway Panel Saw analyses the “one size fits all” which under the technology constraint proposed the constrained condition of optimization of cutting. And optimization algorithm of two-dimensional sheet material nesting of rectangular pieces is studied and established a mathematical model. Using the Heuristic algorithm to solve the problem of two-dimensional rectangular pieces. The introduction of rules of location rules, combination rules and adjacency rules to make nesting layout reasonable and make the cutting process simplify.

scholarly journals Energy cost savings based on the UPS

2020 ◽  
Vol 10 (4) ◽  
pp. 4237
Author(s):  
Phu Tran Tin ◽  
Duy Hung Ha ◽  
Minh Tran ◽  
Quang Sy Vu
Keyword(s):  
Mathematical Model ◽  
Energy Efficiency ◽  
Energy Storage ◽  
Energy Cost ◽  
Energy Use ◽  
Cost Savings ◽  
Urgent Problem ◽  
Source Power ◽  
The World ◽  
Storage Units

Energy-saving, improving energy efficiency, and finding a new efficient way to use energy are considered as an urgent problem in over the world. In this paper, we consider the economics of energy use in combination with energy storage units where two forms of electricity exist in the power system. Then the problem of optimizing the installation capacity (to optimize the investment costs for energy storage) is presented and investigated in connection with the conversion systems. The topic opens a very significant result, including the introduction of a mathematical model to calculate the simulation in optimizing the installation capacity of the equipment in the system, multi-source power, as well as voltage and power stability benefits.

scholarly journals Japan’s declining population and demographic challenges

2017 ◽  
pp. 67-80
Author(s):  
Rajaram Panda
Keyword(s):  
Economic Growth ◽  
Economic Development ◽  
Birth Rate ◽  
Economic Factors ◽  
Asian Countries ◽  
Policy Makers ◽  
Demographic Challenges ◽  
The Future ◽  
Demographic Challenge ◽  
Growing Population

Japan is sitting on a demographic time bomb. The declining birth rate because of changing societal and economic factors impacting on priorities in human lives, and accentuated by a rapidly growing population poses a new challenge to policy makers. The governmental responses have been inadequate and need to be seriously addressed in the interests of the future of the country. Other Asian countries in the path of modernisation and fast economic growth are also falling into such trap. Like in the economic development Japan was the leader that led to the faster growth in other Asian countries, Japan ought to emerge as the new leader in addressing this demographic challenge so that other Asian countries could emulate Japan’s example.

scholarly journals Analysis of the preparation technology of a row seeder for work

2020 ◽  
Vol 193 ◽  
pp. 01035
Author(s):  
A. Yu. Popov ◽  
Noureldin Sharaby ◽  
V.V. Zhurba ◽  
Е.А. Chaika
Keyword(s):  
Mathematical Model ◽  
Graph Theory ◽  
Crop Yields ◽  
Initial Conditions ◽  
Critical Path ◽  
Economic Factors ◽  
Agricultural Crop ◽  
Preparation Technology ◽  
Urgent Task ◽  
Relationship Of

The level of preparation of a row seeder for work and its adaptability to adjustments and settings affects the efficiency of sowing. Analysis of the designs of modern row seeders shows that after-sales service remains a reserve for improving the efficiency of their use, and, therefore, increasing the agricultural crop yields. However, the technologies for the preparation and adjustment row seeders remain poorly understood, and the search for ways to reduce the complexity of maintenance for sowing units is an urgent task. The aim of the study is to build a mathematical model of the technology for checking, adjusting and tuning a row seeder on the basis of graph theory, determining a way to reduce the complexity of servicing maintenance a row seeder in preparation for sowing and justifying a rational way of organizing the seeder setting. Taking into account a number of assumptions and initial conditions, a list of operations for adjusting and setting the seeder is developed. A digraph of a row seeder preparation technology is constructed, which displays the sequence and relationship of the operations of preparation, adjusting and sitting its nodes and mechanisms. The critical path with the greatest time spent on seeder maintenance is determined. The methods for reducing the complexity of maintenance of a row seeder were established and it is recommended that further modernization of the units and mechanisms of the seeder by indicators in terms of suitability for verification, adjustment and setup. The methods of preparing the seeder for work by one performer are considered. The influence of economic factors on the number of performers during maintenance of the seeder before sowing is shown.

Sign in / Sign up

Export Citation Format

Share Document