scholarly journals Minimizing Curvature in Euclidean and Lorentz Geometry

Symmetry ◽  
2021 ◽  
Vol 13 (8) ◽  
pp. 1433
Author(s):  
Martin Tamm
Keyword(s):  
Scalar Curvature ◽  
Euclidean Geometry ◽  
Fundamental Importance ◽  
Main Concern ◽  
Time Axis ◽  
Symbolic Computations ◽  
Enormous Amount

In this paper, an interesting symmetry in Euclidean geometry, which is broken in Lorentz geometry, is studied. As it turns out, attempting to minimize the integral of the square of the scalar curvature leads to completely different results in these two cases. The main concern in this paper is about metrics in R3, which are close to being invariant under rotation. If we add a time-axis and let the metric start to rotate with time, it turns out that, in the case of (locally) Euclidean geometry, the (four-dimensional) scalar curvature will increase with the speed of rotation as expected. However, in the case of Lorentz geometry, the curvature will instead initially decrease. In other words, rotating metrics can, in this case, be said to be less curved than non-rotating ones. This phenomenon seems to be very general, but because of the enormous amount of computations required, it will only be proved for a class of metrics which are close to the flat one, and the main (symbolic) computations have been carried out on a computer. Although the results here are purely mathematical, there is also a connection to physics. In general, a deeper understanding of Lorentz geometry is of fundamental importance for many applied problems.

Live Confocal Analysis of Fertilization and Early Development

2001 ◽  
Vol 7 (S2) ◽  
pp. 1012-1013
Author(s):  
Uyen Tram ◽  
William Sullivan
Keyword(s):  
Drosophila Melanogaster ◽  
Embryonic Development ◽  
Real Time ◽  
Early Development ◽  
Fluorescent Probes ◽  
Primary Defect ◽  
Fluorescent Analysis ◽  
Dynamic Event ◽  
Enormous Amount ◽  
Fluorescent Studies

Embryonic development is a dynamic event and is best studied in live animals in real time. Much of our knowledge of the early events of embryogenesis, however, comes from immunofluourescent analysis of fixed embryos. While these studies provide an enormous amount of information about the organization of different structures during development, they can give only a static glimpse of a very dynamic event. More recently real-time fluorescent studies of living embryos have become much more routine and have given new insights to how different structures and organelles (chromosomes, centrosomes, cytoskeleton, etc.) are coordinately regulated. This is in large part due to the development of commercially available fluorescent probes, GFP technology, and newly developed sensitive fluorescent microscopes. For example, live confocal fluorescent analysis proved essential in determining the primary defect in mutations that disrupt early nuclear divisions in Drosophila melanogaster. For organisms in which GPF transgenics is not available, fluorescent probes that label DNA, microtubules, and actin are available for microinjection.

A Review on Big Data Analytics in Business

2018 ◽  
pp. 210-214
Author(s):  
Manbir Sandhu ◽  
Purnima, Anuradha Saini
Keyword(s):  
Big Data ◽  
Big Data Analytics ◽  
Smart Devices ◽  
Data Streaming ◽  
Huge Amount ◽  
Business Units ◽  
Enormous Amount ◽  
Tools And Techniques ◽  
Heath Care ◽  
Data Analytic

Big data is a fast-growing technology that has the scope to mine huge amount of data to be used in various analytic applications. With large amount of data streaming in from a myriad of sources: social media, online transactions and ubiquity of smart devices, Big Data is practically garnering attention across all stakeholders from academics, banking, government, heath care, manufacturing and retail. Big Data refers to an enormous amount of data generated from disparate sources along with data analytic techniques to examine this voluminous data for predictive trends and patterns, to exploit new growth opportunities, to gain insight, to make informed decisions and optimize processes. Data-driven decision making is the essence of business establishments. The explosive growth of data is steering the business units to tap the potential of Big Data to achieve fueling growth and to achieve a cutting edge over their competitors. The overwhelming generation of data brings with it, its share of concerns. This paper discusses the concept of Big Data, its characteristics, the tools and techniques deployed by organizations to harness the power of Big Data and the daunting issues that hinder the adoption of Business Intelligence in Big Data strategies in organizations.

The Common as Body Without Organs

2010 ◽  
Vol 4 (supplement) ◽  
pp. 46-63
Author(s):  
Vidar Thorsteinsson
Keyword(s):  
The Body ◽  
Fundamental Importance ◽  
Recent Book ◽  
Social Production ◽  
Deleuze And Guattari ◽  
Political Thinking ◽  
Conceptual Apparatus ◽  
Body Without Organs ◽  
Social Factory ◽  
The Common

The paper explores the relation of Michael Hardt and Antonio Negri's work to that of Deleuze and Guattari. The main focus is on Hardt and Negri's concept of ‘the common’ as developed in their most recent book Commonwealth. It is argued that the common can complement what Nicholas Thoburn terms the ‘minor’ characteristics of Deleuze's political thinking while also surpassing certain limitations posed by Hardt and Negri's own previous emphasis on ‘autonomy-in-production’. With reference to Marx's notion of real subsumption and early workerism's social-factory thesis, the discussion circles around showing how a distinction between capital and the common can provide a basis for what Alberto Toscano calls ‘antagonistic separation’ from capital in a more effective way than can the classical capital–labour distinction. To this end, it is demonstrated how the common might benefit from being understood in light of Deleuze and Guattari's conceptual apparatus, with reference primarily to the ‘body without organs’ of Anti-Oedipus. It is argued that the common as body without organs, now understood as constituting its own ‘social production’ separate from the BwO of capital, can provide a new basis for antagonistic separation from capital. Of fundamental importance is how the common potentially invents a novel regime of qualitative valorisation, distinct from capital's limitation to quantity and scarcity.

Family Concerns inThe Vampire Diaries

2019 ◽  
Vol 21 (2) ◽  
pp. 209-222
Author(s):  
Antonio Sanna
Keyword(s):  
Fundamental Importance ◽  
Familial Relationships ◽  
Familial Bonds ◽  
Television Medium ◽  
Precious Stones

This paper examines the TV series The Vampire Diaries to show how the programme responds to traditional gothic tropes and transforms them for the television medium. Vampires and humans shall be read as both preoccupied with the ties of family, in story arcs that explore complex and often dark familial relationships. Especially in the early seasons of the series, objects such as magic rings, compasses, precious stones and magical devices are given fundamental importance for the development of the plot, the interactions among the characters, and the representation of familial bonds. Specifically, the search for and retrieval of the heirlooms shall be interpreted as instrumental to the representation of the characters’ relationships with their respective families, which I argue is a characteristic theme of gothic fictions at large.

IMPLEMENTASI KINERJA KEUANGAN TERHADAP NILAI SPIRITUALITAS PRIBADI

2012 ◽  
Vol 16 (3) ◽  
pp. 332
Author(s):  
Whedy Prasetyo
Keyword(s):  
Corporate Governance ◽  
Corporate Social Responsibility ◽  
Social Responsibility ◽  
Financial Performance ◽  
Annual Report ◽  
Main Concern ◽  
Good Corporate Governance ◽  
Corporate Social ◽  
The Relationship ◽  
Personal Spirituality

Development of financial performance in the application of Good Corporate Governance and Corporate Social Responsibility which affects the values of honesty private individuals, in order to be able to run the accountability, value for money, fairness in financial management, transparency, control, and free of conflicts of interest (independence). The main concern in this study is focused on achieving value personal spirituality through the financial performance and capabilities of Good Corporate Governance (GCG) and Corporate Social Responsibility (CSR) in moderating the relationship with the financial performance of value personal spirituality. This study is a descriptive verifikatif. The unit of analysis in this study was 15 companies in Indonesia with a policy that has been applied through the concept since January of 2008 until now, with the support of the annual report of the company, the company's financial statements, company reports to the disclosure of Good Corporate Governance and Corporate Social Responsibility in the annual report. Overall reports published successively during the years 2008-2011. The results of this study indicate financial performance affects the value of personal spirituality, and for variable GCG obtained results that could moderate the relationship of financial performance to the value of personal spirituality. But for the disclosure of CSR variables obtained results can’t moderate the relationship with the financial performance of personal spirituality.

Differences between Feminist and Mainstream Approaches to Social Science, Most Notably in Sociology, Political Science, Anthropology and History

2014 ◽  
Vol 2 (1) ◽  
pp. 47-50
Author(s):  
Senka Ena Majetic
Keyword(s):  
Social Science ◽  
Political Science ◽  
Main Concern ◽  
Feminist Methodology ◽  
Feminist Writing

Abstract - It is widely accepted among feminists that feminism implies a distinctive approach to inquiry. And for some this is not just a matter of the grounds on which topics are selected for investigation, or even of the theoretical ideas that are treated as relevant. Rather, feminism is taken to carry distinctive methodological and epistemological implications (Hammersley, 1995: 45). In this paper I want to assess the arguments for a distinctively feminist methodology. My first task, though, is to provide some detail about what this is taken to entail. There are, of course, important differences among feminists who have written on this topic, and in the course of the discussion I will highlight some of these. I certainly do not want to suggest that what I am assessing is a single position, nor am I claiming to represent the basis on which most feminists actually do research. My main concern here is solely with feminist writing about methodology.

Sustainable tourism planning in Bahía Solano, Colombia

2020 ◽  
Vol 10 (2) ◽  
pp. 165-176
Author(s):  
Gabriela Antošová ◽  
Ivan Dario Medina Rojas ◽  
Mauricio Peralta Mejía ◽  
Helmuth Yesid Arias Gómez
Keyword(s):  
Social Innovation ◽  
Local Development ◽  
Sustainable Tourism ◽  
High Rate ◽  
Tourism Planning ◽  
Tourist Attractions ◽  
Marine Area ◽  
Bird Watching ◽  
Enormous Amount ◽  
Water Sports

AbstractThe municipality of Bahía Solano possesses important tourist attractions. The majority of them consist of natural wonders such as whale, dolphin and bird watching. Its marine area offers diving courses, all types of fishing, surfing, other water sports etc. The enormous amount of natural wealth stands in contrast to the lack of local development and the high rate of poverty among its inhabitants. Bahía Solano has enviable tourist professions but a low level of competition. This research proposes a methodology of social innovation, elaborated by researchers, that involves nature, communities and tour operators, where a connection of surveys with the expectations and perceptions of the different entities (inhabitants, tourists, and tour operators) has been obtained.

A Review on Methods of Face Masks Sterilization for Reuse Owing To Crisis During COVID-19

2020 ◽  
Vol 11 (SPL1) ◽  
pp. 1240-1243
Author(s):  
Pradyuman Singh Rajput ◽  
Asish Kumar Saha ◽  
Insiya Gangardiwala ◽  
Anand Vijayakumar Palur Ramakrishnan
Keyword(s):  
Healthcare Workers ◽  
Health Hazard ◽  
Capital City ◽  
Limited Resources ◽  
Protective Equipment ◽  
First Line ◽  
Republic Of China ◽  
Enormous Amount ◽  
The Face ◽  
The Common

The COVID-19 pandemic initially started from the Wuhan capital city of Hubei Province in the People's Republic of China had now led to a severe public health hazard across the globe, the recorded death is approximately 958 thousand globally and counting. With the enormous amount of spread of the disease, a severe crisis for Personal Protective Equipment (PPE) is being noticed across the globe. Face masks being the first line of defence for all the healthcare workers as well for the common public. It became mandatory to wear face masks before entering the patient care area. The countries who are not manufacturing it locally had to depend on other countries for the procurement. As there is a severe supply chain disruption due to the lockdown measures taken by all the countries to contain the disease, so it had become difficult to procure the face masks from the manufacturing countries. The price for these PPEs is also rising at an alarming rate with the increase in the COVID-19 cases and the huge rate of consumption by the healthcare and other sectors. Therefore, with limited resources, the hospital has to run its services. The CDC, WHO and ICMR have released several guidelines from time to time for sterilization and reuse of face masks. This article will discuss the various methods that can be utilized to sterilize the face masks and reuse of it.

Noordin Sopite, Chew Lay See and Lim Siang Jin (eds.). ASI:.""AN at the OOSSToads: Obstacles, Options and Opportunities in Economic Cooperatjon. Malaysia: Institute of Strategic and International Studies (ISIS) 1987.577 pp.Price: (hardbound edition) USS 25.

1988 ◽  
Vol 27 (2) ◽  
pp. 219-222
Author(s):  
Khwaja Sarmad
Keyword(s):  
Economies Of Scale ◽  
Joint Venture ◽  
Main Concern ◽  
International Studies ◽  
Industrialized Countries ◽  
Preferential Trade ◽  
Governmental Organization ◽  
Asean Member ◽  
Long Time ◽  
Preferential Trading Arrangements

The Association of Southeast Asian Nations (ASEAN) was established In 1967 as a loosely structured inter-governmental organization, which provided a framework for discussing problems that required a regional solution. For a long time, the reduction of regional political tensions remained the main concern of ASEAN. Serious efforts towards promoting intra-regional co-operation began in 1976 with emphasis on trade liberalization and industrial co-operation. But apart from a few cases, involving the regional economies and collective external bargaining, the record of economic co-operation has been poor, because of different levels of economic development of the member countries, mutually competitive exports.. inward• looking industrial policies and heavy dependence on the industrialized countries for investment, technology and trade. So far, there have been only three intra-ASEAN agreements to promote market sharing and a pooling of resources: the preferential trade arrangements, the industrial complementation agreement, designed to develop links in certain industries to achieve greater economies of scale, and the industrial joint venture agreement, which provides preferential treatment for products of joint ventures involving the companies of at least two ASEAN member countries. However the joint venture scheme has had only limited success because of delays in implementation, while the scope of the preferential trading arrangements has been limited by the consensus approach in solving outstanding issues and by the concern of higher-tariff member countries to protect domestic production and employment. As a result, tariffs have been reduced only on intra-regional trade of selected non-sensitive items. Most of the items covered in the preferential trade agreements have low trade content and minimal trade potential. The arrangements have also been difficult to manage because of problems of administering the rules of origin.

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