The developing relations between science, technology and the railways

Author(s):  
C. A. Russell

While it is very clear that the railway industry from the very beginning owed an immense debt to the disciplines of civil and mechanical engineering, it is far less obvious that the sciences as such had any major contributions to make. This is partly because of a common confusion as to the nature of science and technology and of their relationship together, but chiefly it arises from the fact that very little historical research has been carried out on the topic. Nevertheless some broad outlines of the problem have now become clear. One important element in the situation is the very distinctive kind of response made by the railway industry in its early days and far beyond. Its tendency to be derivative, empirical, interlocking, labour-intensive and acutely aware of public attitudes lasted long into the twentieth century and profoundly affected its development. So also did the way it responded to constraints associated with cost, environment and what can only be called ideology. The one science that unquestionably made a major contribution was chemistry, from the first halting attempts to assess the quality of boiler feed water, through the establishment of laboratories by many of the pre-grouping companies, to the most recent and diverse studies at Derby and elsewhere. It was the first of what may properly be called ‘the railway sciences’.

Author(s):  
Letícia Lenzi

ResumoAo longo do século XX a concepção tradicional de racionalidade da ciência sofreu duras críticas, principalmente após os trabalhos de Thomas Kuhn a respeito dos critérios de evolução das teorias científicas ao longo da história. Assim, filósofos da ciência assumiram a tarefa de redefinir o que se entende por racionalidade da ciência, garantindo novos critérios para salvaguardar a consistência do juízo científico na articulação das ideias e teorias. Neste artigo, evidenciam-se essas questões para se discutir ações que possam promover uma educação científica crítica e reflexiva, contemplando a relação entre Ciência, Tecnologia e Sociedade e uma compreensão mais adequada da natureza da ciência. Palavras-chave: Racionalidade da ciência; Natureza da ciência; Educação científica. AbstractThroughout the twentieth century, the traditional conception of rationality of Science suffered harsh criticism, especially after Thomas Kuhn's work concerning the development criteria of scientific theories throughout history. Thus, philosophers of Science have assumed the task of redefining what is meant by rationality of Science, guaranteeing new criteria to safeguard the consistency of scientific judgment in the articulation of ideas and theories. In this article, these issues are highlighted to discuss actions that can promote critical and reflective scientific education, considering the relationship between Science, Technology and Society and a better understanding of the nature of Science.Keywords: Rationality of Science; Nature of Science; Science education.


1988 ◽  
Vol 20 (10) ◽  
pp. 75-82
Author(s):  
V. K. Karia ◽  
R. K. Khamker

The conservation and recovery of energy have been given a very high priority at the Gujarat Narmada Valley Fertilizers Company Limited (GNFC), which owns the world's largest single stream ammonia and urea plants. Even smaller plants of the GNFC complex, such as the utilities section, are included in the energy conservation programme. After commissioning of the plants, a systematic study was made to identify those areas where the energy input could be reduced. A number of steps were taken, such as trimming pump impellers, synchronising timings of the operation of extra machinery with load needs, improving the quality of chemicals and the boiler feed water, reducing losses of compressed air, etc. As a result, the costs of energy inputs were reduced by nearly 25% in the utility plant, and 15% in the ammonia plant.


2012 ◽  
pp. 24-47
Author(s):  
V. Gimpelson ◽  
G. Monusova

Using different cross-country data sets and simple econometric techniques we study public attitudes towards the police. More positive attitudes are more likely to emerge in the countries that have better functioning democratic institutions, less prone to corruption but enjoy more transparent and accountable police activity. This has a stronger impact on the public opinion (trust and attitudes) than objective crime rates or density of policemen. Citizens tend to trust more in those (policemen) with whom they share common values and can have some control over. The latter is a function of democracy. In authoritarian countries — “police states” — this tendency may not work directly. When we move from semi-authoritarian countries to openly authoritarian ones the trust in the police measured by surveys can also rise. As a result, the trust appears to be U-shaped along the quality of government axis. This phenomenon can be explained with two simple facts. First, publicly spread information concerning police activity in authoritarian countries is strongly controlled; second, the police itself is better controlled by authoritarian regimes which are afraid of dangerous (for them) erosion of this institution.


Author(s):  
Ramiro Remigio Gaibor Fernández ◽  
Abraham Adalberto Bayas Zamora ◽  
Galo Israel Muñoz Sánchez ◽  
Cristhian Adrián Rivas Santacruz

The objective of the present investigation was to evaluate the physical characteristics of the vermicompost and the quality of the purine of the red Californian (Eisenia foetida) using different substrates of feed for these worms. For this purpose, nine treatments were studied: 75% African palm rachis + 25% cattle manure, 50% African palm rachis + 50% cattle manure, 25% African palm rachis + 75% livestock manure, 50% manure of cattle, 50% of manure of cattle, 25% of manure of cattle, 50% of manure of cattle, 50% of manure of cattle, 50% of rach of coconut + 50% of manure of Livestock, 25% coccus rachis + 75% livestock manure. The substrate made up of 50% of rachis of coconut and 50% of livestock manure can be used in nurseries or nurseries for being the one that registered a value of pH 7.3 plus the closest to the neutral compared to the others, besides this (75% of oil palm rachis and 25% of cattle manure) showed a higher content of humic and fulvic acids (0.87 and 0.45 p / p, respectively), compounds that are important for agriculture by stimulating plant growth, in addition to this reflection 0.06% sulfur content, 4.0 ppm boron, 7.0 ppm copper, 47.5 ppm iron, 6.0 ppm manganese, with a presence of microorganisms of the species Trichoderma, Penicillium, Cladosporium sp. in amounts of 1.91x105 UFC / ml, however in this substrate was obtained between 13.3 and 43.5% less liquid slurry in Comparison with other treatments.


2012 ◽  
Vol 58 (2) ◽  
pp. 1-6
Author(s):  
Radim Pavlík ◽  
Vlastimil Řepka
Keyword(s):  
The One ◽  

Abstract In its introduction, this contribution deals with the usage of magnetite during the process of coal separation in the Karviná Mine's preparation plant of the Lazy Plant. Next it deals with the evaluation of quality of magnetite used in the preparation plant, losses of magnetite adhering to the products leaving the preparation plant, the recovery of a diluted suspension with focus on the efficiency of magnetite separation of the diluted suspension and the comparison of the magnetite consumption with the one in the ČSM preparation plant. In conclusions, the article presents options leading to the reduction of the magnetite consumption in the Karviná Mine's preparation plant of the Lazy plant. For comparison, the data of the ČSM Mine is stated here.


2020 ◽  
Vol 26 (11) ◽  
pp. 2567-2593
Author(s):  
M.V. Pomazanov

Subject. The study addresses the improvement of risk management efficiency and the quality of lending decisions made by banks. Objectives. The aim is to present the bank management with a fair algorithm for risk management motivation on the one hand, and the credit management (business) on the other hand. Within the framework of the common goal to maximize risk-adjusted income from loans, this algorithm will provide guidelines for ‘risk management’ and ‘business’ functions on how to improve individual and overall efficiency. Methods. The study employs the discriminant analysis, type I and II errors, Lorentz curve modeling, statistical analysis, economic modeling. Results. The paper offers a mechanism for assessing the quality of risk management decisions as opposed to (or in support of) decisions of the lending business when approving transactions. The mechanism rests on the approach of stating type I and II errors and the corresponding classical metric of the Gini coefficient. On the ‘business’ side, the mechanism monitors the improvement or deterioration of the indicator of changes in losses in comparison with the market average. Conclusions. The study substantiates the stimulating ‘rules of the game’ between the ‘business’ and ‘risk management’ to improve the efficiency of the entire business, to optimize interactions within the framework of internal competition. It presents mathematical tools to calculate corresponding indicators of the efficiency of internally competing entities.


2017 ◽  
Vol 13 ◽  
pp. 244-261
Author(s):  
Mariola Tracz ◽  
Małgorzata Bajgier-Kowalska ◽  
Radosław Uliszak

Podkarpackie Voivodeship is one of the regions of Poland in which the number of agritourism entities is very high. Therefore tourism plays a significant role in its development strategy. The aim of the paper is to identify the current state of agritourism and the changes that have occurred in the region in the years 2000–2016. Specific objectives are to determine the distribution of agritourism farms and their offer, together with a comprehensive analysis of the environmental and socio-economic factors, as well as the impact of the Slovak-Ukrainian border. The report was developed on the statistical materials from the Polish Central Statistical Office, Podkarpackie Agricultural Advisory Centre in Boguchwała and data collected from municipalities and district offices that is published on their websites, as well as through interviews with 100 owners of agritourism farms in the Podkarpackie Voivodeship. The research has shown, on the one hand, the decline in the number of farms in the region and, on the other hand, the increase in the diversity of the tourist offer of these entities. Distribution of agritourism farms is closely linked to the attractiveness of natural environment and quality of secondary tourism resources. Traditional agritourism has not yet fully used its countryside, as well as cross-border advantages of its location.


APRIA Journal ◽  
2020 ◽  
Vol 1 (1) ◽  
pp. 11-16
Author(s):  
José Teunissen

In the last few years, it has often been said that the current fashion system is outdated, still operating by a twentieth-century model that celebrates the individualism of the 'star designer'. In I- D, Sarah Mower recently stated that for the last twenty years, fashion has been at a cocktail party and has completely lost any connection with the public and daily life. On the one hand, designers and big brands experience the enormous pressure to produce new collections at an ever higher pace, leaving less room for reflection, contemplation, and innovation. On the other hand, there is the continuous race to produce at even lower costs and implement more rapid life cycles, resulting in disastrous consequences for society and the environment.


Author(s):  
Wesley J. Wildman

Subordinate-deity models of ultimate reality affirm that God is Highest Being within an ultimate reality that is neither conceptually tractable nor religiously relevant. Subordinate-deity models ceded their dominance to agential-being models of ultimate reality by refusing to supply a comprehensive answer to the metaphysical problem of the One and the Many in the wake of the Axial-Age interest in that problem, but they have revived in the twentieth century due to post-colonial resistance to putatively comprehensive explanations. Subordinate-deity ultimacy models resist the Intentionality Attribution and Narrative Comprehensibility dimensions of anthropomorphism to some degree but continue to employ the Rational Practicality dimension of anthropomorphism, resulting in a strategy of judicious anthropomorphism. Variations, strengths, and weaknesses of the subordinate-deity class of ultimacy models are discussed.


Author(s):  
Christel Lane

This chapter examines the impact of rapid urbanization and industrialization on food and eating out. It draws attention to the growing standardization of food and, with greater class differentiation, to the growing diversity in eating-out venues. Class, gender, and nation are again used as lenses to understand the different eating-out habits and their symbolic significance. Towards the end of the twentieth century, pubs moved more fully towards embracing dining. However, the quality of food, in general terms, began to improve significantly only towards the end of the century, and hospitality venues also moved towards selling food from diverse national origins.


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