scholarly journals OTIMIZAÇÃO DE ROTAS DE AUTOMÓVEIS E ESCALAS PARA ATENDIMENTO DE HOME CARE

2021 ◽  
Vol 13 (2) ◽  
pp. 67-77
Author(s):  
Tulio Olivieri ◽  
Francisco Maracci ◽  
Daniela Russi

The Brazilian vehicle fleet has been growing year by year. This increase in the number of vehicles brings with it some problems, such as congestion and an increase in greenhouse gas emissions. In almost all urban centers, parking outside private establishments is a difficult task, and the time spent on commuting is increasingly high. As an alternative to reduce the number of vehicles in circulation, the sharing of vehicles, as a kind of ride between people who make similar journeys, is gaining ground in urban centers around the world. With an eye on the financial and environmental benefits offered by this alternative, some companies are beginning to adhere to its use, groupingprofessionals who follow similar paths in groups that use the same vehicle. This work aims to seek ways to optimize the route that this group of professionals takes in each work cycle, mitigating vehicle maintenance costs and reducing fuel costs, which consequently reduces pollutant gas emissions. For customers, this can offer greater punctuality in the provision of the service and greater availability of professionals' time. At the end of the work, it is expected that an application will be developed thatperforms the route calculation in the best possible way, allowing its users to have a better use of time when using it.

Author(s):  
Hewitt Crane ◽  
Edwin Kinderman ◽  
Ripudaman Malhotra

Of the various alternatives to fossil energy, nuclear power is the most advanced and the best positioned to become a major source of energy. It is also essentially free of CO2 emissions, and if reducing greenhouse gas emissions is truly the highest concern, then we will have to develop nuclear power. Yet developing nuclear power would also pose challenges in terms of waste disposal, and proliferation of nuclear weapons including the risk of a terrorist organization acquiring such weapons. To some environmentalists nuclear power presents a serious, dilemma. Support or opposition to nuclear power is strongly affected by value judgments as well as lack of disseminated information on questions: What happens if there is leakage of nuclear waste someday? To what extent would people and the world be affected? Would we be trading international security for energy security—does nuclear power increase our vulnerability to terrorist attacks? The mixture of clear benefits with outstanding questions currently allows some nations to embrace nuclear power, some to accept it grudgingly, and still others choose to ignore it. Given its availability and environmental benefits, nuclear is an option that cannot be ignored if we are to tackle the energy problem in a serious way. To assume that we can store and safeguard the waste for thousands of years may be hubris, but we come out in favor of developing nuclear technology in part because we already have to store the legacy nuclear waste that has been generated over the last 50 years. Another 60 or so years of waste will represent a marginal addition to that enormous task, but it would buy us badly needed time to carefully develop other energy sources that do not entail net greenhouse gas emissions. Also, we find that many of the concerns raised against the development of nuclear power are vastly exaggerated. For example, as we describe in this chapter, safe storage of the waste does not require 10,000 years: if we use reprocessing technologies, the remaining waste could be rendered benign in a couple of centuries.


2020 ◽  
Vol 3 (3) ◽  
pp. 35 ◽  
Author(s):  
Abhisek Karki ◽  
Sudip Phuyal ◽  
Daniel Tuladhar ◽  
Subarna Basnet ◽  
Bim Prasad Shrestha

Electric vehicles (EV) are becoming more common mobility in the transportation sector in recent times. The dependence on oil as the source of energy for passenger vehicles has economic and political implications, and the crisis will take over as the oil reserves of the world diminish. As concerns of oil depletion and security of the oil supply remain as severe as ever, and faced with the consequences of climate change due to greenhouse gas emissions from the tail pipes of vehicles, the world today is increasingly looking at alternatives to traditional road transport technologies. EVs are seen as a promising green technology which could lead to the decarbonization of the passenger vehicle fleet and to independence from oil. There are possibilities of immense environmental benefits as well, as EVs have zero tail pipe emission and therefore are capable of curbing the pollution problems created by vehicle emission in an efficient way so they can extensively reduce the greenhouse gas emissions produced by the transportation sector as pure electric vehicles are the only vehicles with zero-emission potential. However, there are some major barriers for EVs to overcome before totally replacing ICE vehicles in the transportation sector and obtain appreciable market penetration. This review evaluates the technological aspects of the different power train systems of BEV technology and highlights those technological areas where important progress is expected by focusing on reviewing all the useful information and data available on EV architecture, electrical machines, optimization techniques, and its possibilities of future developments as green mobility. The challenges of different electric drive trains’ commercialization are discussed. The major objective is to provide an overall view of the current pure electric vehicle powertrain technology and possibilities of future green vehicle development to assist in future research in this sector.


2001 ◽  
pp. 13-17
Author(s):  
Serhii Viktorovych Svystunov

In the 21st century, the world became a sign of globalization: global conflicts, global disasters, global economy, global Internet, etc. The Polish researcher Casimir Zhigulsky defines globalization as a kind of process, that is, the target set of characteristic changes that develop over time and occur in the modern world. These changes in general are reduced to mutual rapprochement, reduction of distances, the rapid appearance of a large number of different connections, contacts, exchanges, and to increase the dependence of society in almost all spheres of his life from what is happening in other, often very remote regions of the world.


Moreana ◽  
2005 ◽  
Vol 42 (Number 164) (4) ◽  
pp. 187-206
Author(s):  
Clare M. Murphy

The Thomas More Society of Buenos Aires begins or ends almost all its events by reciting in both English and Spanish a prayer written by More in the margins of his Book of Hours probably while he was a prisoner in the Tower of London. After a short history of what is called Thomas More’s Prayer Book, the author studies the prayer as a poem written in the form of a psalm according to the structure of Hebrew poetry, and looks at the poem’s content as a psalm of lament.


2019 ◽  
Vol 10 (10) ◽  
pp. 1003-1008
Author(s):  
Hiroyuki Matsuoka ◽  

In the world auto market, top three companies are VW(Volkswagen), Runault-Nissan-Mistubishi, and Toyota. About some selected countries and areas, China, England, Italy, Australia, Germany, Turkey, Russia, Sweden, USA, Brazil, UAE, Japan, Vietnam and Thailand are more competitive. However, the situation is different. Seeing monopolistic market countries and areas, Saudi Arabia, Taiwan, Korea, Malaysia, France, India, and Pakistan, in particular, the influence of Japan to Taiwan, India, and Pakistan is very big. But in Korea and France, their own companies’ brands occupy the market. In Japan domestic market, the overall situation is competitive. Almost all vehicles made in Japan are Japanese brand. From now on, we have to note the development of electric vehicle (EV) and other new technologies such as automatic driving and connected car. That is because they will give a great impact on the auto industry and market of Japan. Now Japan’s auto industry is going to be consolidated into three groups, Honda, Toyota group, and Renault-Nissan-Mitsubishi group for seeking the scale merit of economy. Therefore, I will pay attention to the worldwide development of EV and other new technologies and the reorganization of auto companies groups.


2019 ◽  
Vol 47 (3) ◽  
pp. 80-91
Author(s):  
V. G. Neiman

The main content of the work consists of certain systematization and addition of longexisting, but eventually deformed and partly lost qualitative ideas about the role of thermal and wind factors that determine the physical mechanism of the World Ocean’s General Circulation System (OGCS). It is noted that the conceptual foundations of the theory of the OGCS in one form or another are contained in the works of many well-known hydrophysicists of the last century, but the aggregate, logically coherent description of the key factors determining the physical model of the OGCS in the public literature is not so easy to find. An attempt is made to clarify and concretize some general ideas about the two key blocks that form the basis of an adequate physical model of the system of oceanic water masses motion in a climatic scale. Attention is drawn to the fact that when analyzing the OGCS it is necessary to take into account not only immediate but also indirect effects of thermal and wind factors on the ocean surface. In conclusion, it is noted that, in the end, by the uneven flow of heat to the surface of the ocean can be explained the nature of both external and almost all internal factors, in one way or another contributing to the excitation of the general, or climatic, ocean circulation.


Author(s):  
You Chen ◽  
Yubo Feng ◽  
Chao Yan ◽  
Xinmeng Zhang ◽  
Cheng Gao

BACKGROUND Adopting non-pharmaceutical interventions (NPIs) can affect COVID-19 growing trends, decrease the number of infected cases, and thus reduce mortality and healthcare demand. Almost all countries in the world have adopted non-pharmaceutical interventions (NPIs) to control the spread rate of COVID-19; however, it is unclear what are differences in the effectiveness of NPIs among these countries. OBJECTIVE We hypothesize that COVID-19 case growth data reveals the efficacy of NPIs. In this study, we conduct a secondary analysis of COVID-19 case growth data to compare the differences in the effectiveness of NPIs among 16 representative countries in the world. METHODS This study leverages publicly available data to learn patterns of dynamic changes in the reproduction rate for sixteen countries covering Asia, Europe, North America, South America, Australia, and Africa. Furthermore, we model the relationships between the cumulative number of cases and the dynamic reproduction rate to characterize the effectiveness of the NPIs. We learn four levels of NPIs according to their effects in the control of COVID-19 growth and categorize the 16 countries into the corresponding groups. RESULTS The dynamic changes of the reproduction rate are learned via linear regression models for all of the studied countries, with the average adjusted R-squared at 0.96 and the 95% confidence interval as [0.94 0.98]. China, South Korea, Argentina, and Australia are at the first level of NPIs, which are the most effective. Japan and Egypt are at the second level of NPIs, and Italy, Germany, France, Netherlands, and Spain, are at the third level. The US and UK have the most inefficient NPIs, and they are at the fourth level of NPIs. CONCLUSIONS COVID-19 case growth data provides evidence to demonstrate the effectiveness of the NPIs. Understanding the differences in the efficacy of the NPIs among countries in the world can give guidance for emergent public health events. CLINICALTRIAL NA


The contributions, by eminent scholars, included in The Indian Yearbook of Comparative Law 2016 discuss the discipline of comparative law in India and is of immense importance for legal scholarship around the globe. Unlike the West, that has covered almost all aspects of law from private to public law matters of national, transnational, and international relevance, not much work has been done in the discipline of Comparative law in India. In view of the countries and people of the world coming closer day by day, the need for the comparative study of law is becoming a sine qua non for participation in almost all transactions among people living across the globe. The attempt made with this volume will not only meet the much-awaited need of having reading materials on comparative law, but will also create a forum for legal scholars around the world to express their views on different aspects of law in comparative perspective. The issues covered her range from comparative legal methods to comparison in different aspects of law in different countries, as well as transnational and international bodies such as European Union and the various bodies of the United Nations. The issues covered include corporate law, constitutional law, human rights, environmental law, globalization, democracy, privatization, and several other contemporary legal issues.


Author(s):  
Yi-Tui Chen

Although vaccination is carried out worldwide, the vaccination rate varies greatly. As of 24 May 2021, in some countries, the proportion of the population fully vaccinated against COVID-19 has exceeded 50%, but in many countries, this proportion is still very low, less than 1%. This article aims to explore the impact of vaccination on the spread of the COVID-19 pandemic. As the herd immunity of almost all countries in the world has not been reached, several countries were selected as sample cases by employing the following criteria: more than 60 vaccine doses per 100 people and a population of more than one million people. In the end, a total of eight countries/regions were selected, including Israel, the UAE, Chile, the United Kingdom, the United States, Hungary, and Qatar. The results find that vaccination has a major impact on reducing infection rates in all countries. However, the infection rate after vaccination showed two trends. One is an inverted U-shaped trend, and the other is an L-shaped trend. For those countries with an inverted U-shaped trend, the infection rate begins to decline when the vaccination rate reaches 1.46–50.91 doses per 100 people.


Author(s):  
C. Montagnon ◽  
A. Mahyoub ◽  
W. Solano ◽  
F. Sheibani

AbstractWhilst it is established that almost all cultivated coffee (Coffea arabica L.) varieties originated in Yemen after some coffee seeds were introduced into Yemen from neighboring Ethiopia, the actual coffee genetic diversity in Yemen and its significance to the coffee world had never been explored. We observed five genetic clusters. The first cluster, which we named the Ethiopian-Only (EO) cluster, was made up exclusively of the Ethiopian accessions. This cluster was clearly separated from the Yemen and cultivated varieties clusters, hence confirming the genetic distance between wild Ethiopian accessions and coffee cultivated varieties around the world. The second cluster, which we named the SL-17 cluster, was a small cluster of cultivated worldwide varieties and included no Yemen samples. Two other clusters were made up of worldwide varieties and Yemen samples. We named these the Yemen Typica-Bourbon cluster and the Yemen SL-34 cluster. Finally, we observed one cluster that was unique to Yemen and was not related to any known cultivated varieties and not even to any known Ethiopian accession: we name this cluster the New-Yemen cluster. We discuss the consequences of these findings and their potential to pave the way for further comprehensive genetic improvement projects for the identification of major resilience/adaptation and cup quality genes that have been shaped through the domestication process of C. arabica.


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