scholarly journals Prevention and treatment of pancreatic fistula after pancreatic body and tail resection: current status and future directions

2019 ◽  
Vol 14 (3) ◽  
pp. 251-261 ◽  
Author(s):  
Li Jiang ◽  
Deng Ning ◽  
Xiaoping Chen

AbstractPostoperative pancreatic fistula (POPF) is the most common and critical complication after pancreatic body and tail resection. How to effectively reduce the occurrence of pancreatic fistula and conduct timely treatment thereafter is an urgent clinical issue to be solved. Recent research standardized the definition of pancreatic fistula and stressed the correlation between POPF classification and patient prognosis. According to the literature, identification of the risk factors for pancreatic fistula contributed to lowering the rate of the complication. Appropriate management of the pancreatic stump and perioperative treatment are of great significance to reduce the rate of POPF in clinical practice. After the occurrence of POPF, the treatment of choice should be determined according to the classification of the pancreatic fistula. However, despite the progress and promising treatment approaches, POPF remains to be a clinical issue that warrants further studies in the future.

2014 ◽  
Vol 496-500 ◽  
pp. 2208-2215 ◽  
Author(s):  
Zhong Yong Fu ◽  
Zhen Zhou Zhao

With the popularity of computer and network technology, information security problem is increasingly highlighted, and the computer related crime phenomenon more and more. Computer forensics to protect information security and to crack down on computer crime provides scientific methods and means, can provide evidence of the court need. This paper first gives the definition of computer forensics, and then introduces the features of computer evidence, principles and classification of computer forensics, finally describes the research status of computer forensics, points out the problems existing in the computer forensics and its development trend is forecasted.


2020 ◽  
pp. paper47-1-paper47-11
Author(s):  
Eugene Eremchenko

The article addresses to a fundamental issue facing the concept of the Digital Earth in 2020 – what is the definition of the Digital Earth? 22 years after the announcement of the concept and 15 years after its first mass and successful implementation in the service Google Earth in 2005 this question remains unanswered. In the article the current status of the development of the Digital Earth concept by 2020 is considered, a methodology for the definition of the Digital Earth, based on the classification of the diversity of existing geospatial approaches and the identification of key factors that provide its unique functionality, is proposed and discussed. Distinction between the Digital Earth and others geospatial approaches is provided. The intrinsic connection of definition and classifications is grounded, the new definition of the Digital Earth and complimentary classification of geospatial methods are offered. Semiotics aspects of the Digital Earth are discussed briefly. The question of the eligibility of technologies and systems to the Digital Earth is considered. The perspective issues of further development of the Digital Earth are considered.


2005 ◽  
Vol 55 (4) ◽  
pp. 399-417 ◽  
Author(s):  
Innes Cuthill

AbstractIn 1963, a landmark paper by Niko Tinbergen laid out the aims and methods of ethology and, in so doing, extended and clarified Julian Huxley's classification of the different ways in which one can investigate biological processes. I discuss the status of one of these "four Why questions", that of function or survival value, and the relationship of Tinbergen's ethology to behavioural ecology, the main field asking functional questions about animal behaviour today. Function itself can be defined in many different ways and behavioural ecologists themselves use it both in the context of current utility and selective history. I review these definitions in the light of analyses by philosophers of science, behavioural ecologists and, of course, Tinbergen's own use of the word. I defend the view, accepted by many philosophers of science, that the definition of 'function' must have a historical component, both to avoid teleology and to retain the everyday sense of questioning 'What is it for?' That said, in reviewing the different methods that can be used to determine function, I defend the view that investigations of current utility, as practised by behavioural ecologists, can provide the most important clues to the selective forces that have shaped behaviours. Finally, I consider the evolution of the discipline of behavioural ecology, its current status and future prospects.


1996 ◽  
Vol 35 (04/05) ◽  
pp. 334-342 ◽  
Author(s):  
K.-P. Adlassnig ◽  
G. Kolarz ◽  
H. Leitich

Abstract:In 1987, the American Rheumatism Association issued a set of criteria for the classification of rheumatoid arthritis (RA) to provide a uniform definition of RA patients. Fuzzy set theory and fuzzy logic were used to transform this set of criteria into a diagnostic tool that offers diagnoses at different levels of confidence: a definite level, which was consistent with the original criteria definition, as well as several possible and superdefinite levels. Two fuzzy models and a reference model which provided results at a definite level only were applied to 292 clinical cases from a hospital for rheumatic diseases. At the definite level, all models yielded a sensitivity rate of 72.6% and a specificity rate of 87.0%. Sensitivity and specificity rates at the possible levels ranged from 73.3% to 85.6% and from 83.6% to 87.0%. At the superdefinite levels, sensitivity rates ranged from 39.0% to 63.7% and specificity rates from 90.4% to 95.2%. Fuzzy techniques were helpful to add flexibility to preexisting diagnostic criteria in order to obtain diagnoses at the desired level of confidence.


2018 ◽  
pp. 4-7
Author(s):  
S. I. Zenko

The article raises the problem of classification of the concepts of computer science and informatics studied at secondary school. The efficiency of creation of techniques of training of pupils in these concepts depends on its solution. The author proposes to consider classifications of the concepts of school informatics from four positions: on the cross-subject basis, the content lines of the educational subject "Informatics", the logical and structural interrelations and interactions of the studied concepts, the etymology of foreign-language and translated words in the definition of the concepts of informatics. As a result of the first classification general and special concepts are allocated; the second classification — inter-content and intra-content concepts; the third classification — stable (steady), expanding, key and auxiliary concepts; the fourth classification — concepts-nouns, conceptsverbs, concepts-adjectives and concepts — combinations of parts of speech.


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