Closedness of morphisms of differential algebraic sets. Applications to system theory

1993 ◽  
Vol 5 (5) ◽  
Author(s):  
Sette Diop
Keyword(s):  
System Theory ◽  
Algebraic Sets

Prediction of Technical Reserves Based on Grey Model — GM(1,1): Evidence from Non-life Egyptian Insurance Market

2019 ◽  
Vol 10 (9) ◽  
pp. 852-860
Author(s):  
Mahmoud Elsayed ◽  
◽  
Amr Soliman ◽  
Keyword(s):  
System Theory ◽  
Grey System Theory ◽  
Insurance Market ◽  
Grey Model ◽  
Loss Ratio ◽  
Grey System ◽  
Mathematical Technique ◽  
Supervisory Authority ◽  
Error Ratio ◽  
Using Data

Grey system theory is a mathematical technique used to predict data with known and unknown characteristics. The aim of our research is to forecast the future amount of technical reserves (outstanding claims reserve, loss ratio fluctuations reserve and unearned premiums reserve) up to 2029/2030. This study applies the Grey Model GM(1,1) using data obtained from the Egyptian Financial Supervisory Authority (EFSA) over the period from 2005/2006 to 2015/2016 for non-life Egyptian insurance market. We found that the predicted amounts of outstanding claims reserve and loss ratio fluctuations reserve are highly significant than the unearned premiums reserve according to the value of Posterior Error Ratio (PER).

Penerapan Hukum Wakaf Uang di Indonesia Perspektif Legal System Theory

2018 ◽  
Vol 11 (1) ◽  
pp. 79-92 ◽  
Author(s):  
Masdar Masdar
Keyword(s):  
System Theory ◽  
Law Enforcement ◽  
Legal System ◽  
Legal Culture ◽  
Point Of View ◽  
Law Enforcement Agencies ◽  
Muslim Society ◽  
The Law ◽  
The Government

Cash waqf in Indonesia has been long enough implemented based on some rules enacted by government and other rules defined by The Waqf Board of Indonesia (BWI). However, the implementation of cash waqf has not reached the level of success. Therefore, this article studies the application of cash waqf law in Indonesia according to Friedman’s legal system theory. The legal system theory of Friedman firstly looks at the substance of the law, which is the rules or regulations; and secondly it examines the structure of the law, encompassing the law enforcement agencies, such as judge, prosecutor, police and legal counselors. And lastly the theory examines the element of legal culture, which is a response from Muslim society. The first two examinations indicate that there is nothing to be a problem. But from the last examination there is a problem regarding the trust from Muslim society. From the legal culture point of view, the implementation of cash waqf by the government, which is performed by BWI, needs attracting society’s credentials in order to improve and maximize the performance of cash waqf in Indonesia.

Importance of the Intersection of Library and Information Sciences with Systems Theory

2017 ◽  
Vol 1 (1) ◽  
Author(s):  
Hannah Lee
Keyword(s):  
System Theory ◽  
General System ◽  
General System Theory ◽  
Von Bertalanffy ◽  
Meta Level ◽  
Professional Field ◽  
The Subject ◽  
Critical Insight ◽  
Insight Into ◽  
Information Sciences

This paper is the attempt to show how system theory could provide critical insight into the transdisciplinary field of library and information sciences (LIS). It begins with a discussion on the categorization of library and information sciences as an academic and professional field (or rather, the lack of evidence on the subject) and what is exactly meant by system theory, drawing upon the general system theory established by Ludwig von Bertalanffy. The main conversation of this paper focuses on the inadequacies of current meta-level discussions of LIS and the benefits of general system theory (particularly when considering the exponential rapidity in which information travels) with LIS.

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