• Title/Summary/Keyword: Inheritance

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Analysis of Inheritance Anomaly due to Integrated of Inheritance and Concurrency (상속성과 병행성 통합에서 오는 상속 변칙 분석)

  • 오승재
    • Journal of the Korea Society of Computer and Information
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    • v.6 no.4
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    • pp.38-44
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    • 2001
  • The integration of concurrency and object-oriented programming paradigm has been a goal of researchers for over a decade. The concurrent object-oriented programming languages used for various concurrent applications development. However, concurrency and inheritance have conflicting characteristics, thereby inhibiting their simultaneous use without heavy breakage of encapsulation. This conflicting phenomenon is known as inheritance anomalies, have been limited in applicability and have not addressed all the issues that synchronization raises. In this paper, the behavior description equation is introduced for the solution for the conflicting phenomenon, between inheritance and object-based concurrency. As a result, it can solve the several inheritance anomalies and is not necessary to redefine method. Therefor, it offers flexible concurrency model with an emphasis on the reuse of both synchronization and function code.

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A Study on Solution of Anomaly due to Integrated of Inheritance and Concurrency (상속성과 병행성에서 오는 상속변칙 문제 해결에 관한 연구)

  • Park, Young-Ok;Moon, Jeong-Hwan;Lee, Chiol-Seong;Hong, Seong-Pyo;Lee, Ho-Young;Lee, Joon
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2002.05a
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    • pp.485-489
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    • 2002
  • The concepts from OOP have been integrated in a concurrency, leading to the emergence of concurrent OOP. Concurrency of concurrent OOP and various model technique of OOP language are integrated had been proposed. Concurrent programming and OOP technique unite that can gain various kinds advantage to develop concurrency application program. There have been a number of models proposed for integrating concurrency and OOP However, concurrency and inheritance are two paradigms which are difficult to combine in a suitable manner. The inheritance anomaly is the conclicted phenomena, which occurs only when concurrency is integrated with inheritance. The inheritance anoay is referred to as the serious difficulty in integrating inheritance and concurrency in a simple and efficient manner within a concurrent OOP. Concurrency and inheritance with integrated that Drop reusability of object remarkably and require re-justice of code that is inherited in subclass. So concurrency and inheritance with integrated Collision that happen between two special qualitys or Interference phenomenon is inheritance anomaly. Effect of inheritance anomaly minimum Much study findings announced about access method to improve code reusability. Wish to approach in paper that is division by synchronization code and method code to solve interference problem between and concurrency.

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A Study on the Recognition of Inheritance Tax by Individuals (개인의 상속세 인식에 대한 연구)

  • Gui-tae, Yun;Young-bae, Park
    • Journal of Digital Policy
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    • v.1 no.2
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    • pp.25-40
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    • 2022
  • This study analysed the effect of inheritance tax on households in reality and to improve it if there is an unreasonable aspect compared to countries around the world. The study conducted a one-on-one face-to-face survey on adults living in major cities across the country for 31 days from 1st of September to 10th of October, 2022. The collected data was analysed using SPSS 25.0 version and noted that 1) they preferred the abolition of inheritance tax, but hoped to improve it when maintaining it, 2) it was necessary to expand the deduction limit, abolish spouse deductions, and 3) prefer the inheritance acquisition tax system. Finally, it was found that they wanted to Extension of installment period of inheritance tax and introduce the tax deferred system.. This suggests that there is a perception that the overall revision of the inheritance tax system is necessary to maintain the inheritance tax. The significance of the study is to provide the basis for discussions on the improvement of the inheritance tax system in Korea, which does not reflect reality.

Design Patterns for Realizing Object-Oriented Inheritance in EJB Environment (EJB 환경에서 객체지향 상속 관계 설계 패턴)

  • Choi, Si-Won;Kim, Soo-Dong
    • The KIPS Transactions:PartD
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    • v.11D no.1
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    • pp.153-162
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    • 2004
  • Software development methodology using object-oriented analysis and design techniques for improving productivity and maintainability has acquired a substantial acceptance in both academia and industry as a fundamental paradigm. Enterprise Java Beans (EJB) is widely used in both academia and industry because it provides high unability and rapid application development. EJB supports object-oriented paradigm, but there are several things to consider when designing detail model of object-oriented model or implementing object-oriented model with EJB model. One of them is inheritance problem. In this paper, we classify the types of class inheritance which is shown upon in object-oriented model into three types and identify the problems which can happen when implementing the inheritance mechanism with EJB model. And this paper proposes three patterns for realizing the inheritance in EJB. Moreover, applicable patterns and guidelines for each object-oriented inheritance types for the proposed patterns are suggested.

Development of a Concurrency Control Technique for Multiple Inheritance in Object-Oriented Databases (객체지향 데이터베이스의 다중계승을 위한 동시성 제어 기법 개발)

  • Jun, Woochun;Hong, Suk-Ki
    • Journal of Internet Computing and Services
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    • v.15 no.1
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    • pp.63-71
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    • 2014
  • Currently many non-traditional application areas such as artificial intelligence and web databases require advanced modeling power than the existing relational data model. In those application areas, object-oriented database (OODB) is better data model since an OODB can providemodeling power as grouping similar objects into class, and organizing all classes into a hierarchy where a subclass inherits all definitions from its superclasses. The purpose of this paper is to develop an OODB concurrency control scheme dealing with multiple inheritance. The proposed scheme, called Multiple Inheritance Implicit Locking (MIIL), is based on so-called implicit locking. In the proposed scheme, we eliminate redundant locks that are necessary in the existing implicit locking scheme. Intention locks are required as the existing implicit locking scheme. In this paper, it is shown that MIIL has less locking overhead than implicit locking does. We use only OODB inheritance hierarchies, single inheritance and multiple inheritance so that no additional overhead is necessary for reducing locking overhead.

Study on Inheritance and Transgressions at Cocoon and Shell Weight Characters between Genetically Sex-limited Silkworm Bombyx mori L. Lines

  • Petkov N.;Petkov Z.;Grekov D.;Arnaudova K.
    • International Journal of Industrial Entomology and Biomaterials
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    • v.11 no.1
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    • pp.75-78
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    • 2005
  • Inheritance of cocoon and shell weight characters in silkworm crosses between sex-limited at larva stage lines, including three (NIG$_{1}$ $\times$ TV$_{3/2}$ ,NIG$_{1}$ $\times$ TBV$_{2/24}$ and NIG$_{1}$ $\times$ B$_{2/6}$ ) from Japanese type and three (NIG$_{2}$ $\times$ B$_{2/6}$ ,TV$_{3/2}$ $\times$ NIG$_{1}$ and NIG$_{2}$ $\times$ TBV$_{2/24}$ ) from Chinese type was studied at Regional Centre for Scientific­Applied Service - Vratza during the period of 2000 ­2002. Inheritance of tested characters in F I was deter­mined through genetic parameters, additiveness (a), dominance (d) and their ratio (d/a). Degree and frequency of transgressions in F$_{2}$ were calculated also. Over dominance (d/a(>) 1) with bigger contribution of the parent with higher value was determined at inheritance tested characters. Transgressions obtained at cocoon and shell weight characters were positive and varied in wide limits. The productivity of parent's lines had defined the variability of genetic parameters for degree and frequency of transgressions. Combination of positive transgressions at cocoon and shell weight characters in F2 hybrid populations from sex-limited at larva stage allow us to select individuals with high productive potential for further use in selection programs.

A Comparative study on Caregiving and Inheritance patterns; Korea vs. U.S.A (비교문화적 관점에서 본 노부모부양과 재산상속의식: 한국과 미국의 비교)

  • 조병은
    • Journal of Families and Better Life
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    • v.15 no.4
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    • pp.125-136
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    • 1997
  • The present study compares motives for caregiving, actual caregiving provision, care expectation from children in old age, and the connections between caregiving and inheritance distribution patterns as perceived by caregiving daughters/daughters-in-law and their care-receiving mothers/mothers-in-law between Korea and the United States. The results indicated that there was no difference in caregiving motives between Korean and American children while American mothers/mothers-in-law perceived significantly lower obligatory caregiving motives than their Korean counterparts. Also, both Korean children and their mothers/mothers-in-law reported higher level of care provision than their counterparts. The level of caregiving expectation from their children in old age among Korean elders was significantly different from those of American elders while no differences were found between Korean and American children. Finally, both Korean children and their mothers/mothers-in-law were more likely to endorse distributing larger shares of inheritance to the child who cared for his/her mothers/mothers-in-law than American counterparts. On the other hand, American subjects were more likely to accept the notion of equal distribution of inheritance. Overall, this cross-cultural study showed the cultural differences in caregiving and inheritance patterns between Korean and American subjects exhibiting salient difference among the older generation.

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Inheritance of Resistance to Nuclear Polyhedrosis Virus in Silkworm, Bombyx mori

  • Sen, Ratna;Ashwath, S.K.;Datta, R.K.
    • International Journal of Industrial Entomology and Biomaterials
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    • v.3 no.2
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    • pp.187-190
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    • 2001
  • Inheritance pattern of resistance to Bombyx mori nuclear polyhedrosis virus (BmNPV) was studied in an Indian silkworm stock TX by single back-cross test method. The resistant parent [TX], susceptible parent [HM], their Fl, F2, and Fl progeny back-crossed to TX [BC(R)] and HM [BC(S)] were inoculated per os with a fixed concentration of BmNPV($0.5{\times}10^{th} PIB/ml$) on the first day of second stadium. The cumulative mortality was recorded until day $10^{\times}$ post-inoculation. The results show that the resistance to BmNPV in TX fellow mono Mendelian inheritance pattern. The resistance dominated over the susceptibility at Fl. At F2, the resistant and susceptible offspring segregated in 3:1 ratio whereas at BC(S), the resistant and susceptible offspring segregated in 1:1 ratio. The response of BC(R) was more or less like the resistant parent TX which confirms the involvement of a major dominant gene conferring resistance to BmNPV in TX. The possible mechanism of inheritance of resistance in TX is discussed.

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Negative evidence on the transgenerational inheritance of defense priming in Arabidopsis thaliana

  • Yun, Se-Hun;Noh, Bosl;Noh, Yoo-Sun
    • BMB Reports
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    • v.55 no.7
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    • pp.342-347
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    • 2022
  • Defense priming allows plants to enhance their immune responses to subsequent pathogen challenges. Recent reports suggested that acquired resistances in parental generation can be inherited into descendants. Although epigenetic mechanisms are plausible tools enabling the transmission of information or phenotypic traits induced by environmental cues across generations, the mechanism for the transgenerational inheritance of defense priming in plants has yet to be elucidated. With the initial aim to elucidate an epigenetic mechanism for the defense priming in plants, we reassessed the transgenerational inheritance of plant defense, however, could not observe any evidence supporting it. By using the same dipping method with previous reports, Arabidopsis was exposed repeatedly to Pseudomonas syringae pv tomato DC3000 (Pst DC3000) during vegetative or reproductive stages. Irrespective of the developmental stages of parental plants that received pathogen infection, the descendants did not exhibit primed resistance phenotypes, defense marker gene (PR1) expression, or elevated histone acetylation within PR1 chromatin. In assays using the pressure-infiltration method for infection, we obtained the same results as above. Thus, our results suggest that the previous observations on the transgenerational inheritance of defense priming in plants should be more extensively and carefully reassessed.