亲子鉴定:科技维护家庭伦理存在的道德悖论

亲子鉴定对于维护家庭应有的婚姻观念和伦理关系的积极意义是不言而喻的;但同时也带来一系列需要引起注意的新问题,如强化了男子亲权的意义而忽视了女子亲权的意义、强化性关系的生理和血缘伦理意义而弱化了性关系的社会伦理意义,容易因诱发和助长夫妻间的不信任情绪而导致婚姻和家庭信任危机等;因此,国家和社会应当对亲子鉴定进行必要的引导和限制。     

亲缘利他的不对称性：进化视角的分析

内含适应性理论是进化生物学和进化心理学中最重要的理论之一。该理论假设, 个体的亲属是其适应性的载体, 但亲属们的价值有所不同。大量研究发现, 亲属的利他行为表现出不对称性, 即遗传相关系数相同的亲属表现出不同的利他倾向。如祖父母对孙辈的投资中, 外祖母往往投入最多, 外祖父和祖母次之, 祖父投入最少。研究者用内含适应性理论来解释这种亲缘利他差异, 进而提出了“父亲身份不确定性”等具体的进化假设。未来研究中, 国内研究者应在正确理解内含适应性理论的基础上, 更多关注亲缘利他的不对称性, 采用多种数据采集方法和统一的评定指标。     

Ibn al-Ṭayyib’s Trinitarian Formulation in the Islamic Milieu

This article examines a theological treatise of Abū al-Faraj ?Abd Allāh Ibn al-?ayyib, a savant of the Assyrian Church of the East. The treatise discusses the Attributes of Deity demonstrating a thematic correspondence with the dominant polemical arguments occasioned by the Christian view of the Trinity and Christology. These include the relation of the hypostases to the attributes of essence, specifically the unity of the divine essence in contrast to the plurality of the hypostases. Ibn al-?ayyib also borrows concepts from the Muslim milieu to commend his Christian formulation. Most notable among these is the Ash?arī concept of the divine attributes (?ifāt) and their categorization. The Ash?arīs had limited the attributes of essence to seven. Ibn al-?ayyib limits them to three: paternity, filiation and procession. The article considers Ibn al-?ayyib’s Christian intellectual forebears, demonstrating that he used and amended their formulations. Finally, two Muslim polemicists are considered to establish that Ibn al-?ayyib was engaging with specific objections concerning the Christian Trinity. This thematic correspondence warrants a reconsideration of Ibn al-?ayyib’s contribution to the Muslim–Christian interface. Although never an explicitly polemic theologian, the savant-priest developed an implicit apologetic through his theological treatises that provided intellectual fortification for his Christian community.     

The Third Treatise of Shaykh Abū al-Faraj ʿAbd Allāh Ibn al-Ṭayyib on Unity and Trinity

The article consists of a critical Arabic edition and English translation of the Third Treatise of Shaykh Abū al-Faraj ?Abd Allāh Ibn al-?ayyib. The introduction provides a brief, general orientation to the treatise, discussing its relation to two other treatises by the same author and suggesting a chronology. The translation accompanies an article analysing the treatise titled: ‘Ibn al-?ayyib’'s Trinitarian Formulation in the Islamic Milieu’ (Kuhn, M. 2018. “Ibn al-?ayyib’s Trinitarian Formulation in the Islamic Milieu.” Islam and Christian–Muslim Relations 29 (2): 123–143).     

LAW AND ETHICS IN ISLAMIC BIOETHICS: NONMALEFICENCE IN ISLAMIC PATERNITY REGULATIONS

In Islamic law paternity is treated as a consequence of a licit sexual relationship. Since DNA testing makes a clear distinction between legal and biological paternity possible, it challenges the continued correlation between paternity and marriage. This article explores the foundations of paternity regulations in the Islamic ethico‐legal tradition, with a particular focus on what is termed here “the licit sex principle,” and investigates the extent to which a harm‐based argument can be made either by appeal to or against Islamic paternity regulations. It argues that in Islamic bioethics the definition of harm and its boundaries is a function of both: (1) identification of legal and religious rights and the extent to which these rights are violated; and (2) balancing and reconciling perceived harm against both specific principles in relation to a given issue and also the overarching objectives of Islamic law. The article is divided into three main sections addressing the Islamic legal, ethical, and bioethical dimensions of paternity.     

父子(女)间面孔相似性的进化适应机制及其影响

由于受精和孕育过程发生在母亲体内, 人类受孕具有一定的隐蔽性, 同时人类早期社会存在着通奸行为, 因而, 父亲面临着父亲身份不确定性的风险。为了应对这种风险, 人类男性在生活中往往会寻求一些能表征父亲身份的线索, 其中亲子间面孔相似性被证明是辨别个体间是否存在基因关联(或血缘关系)的有效线索之一。morph软件合成、第三方评定以及当事人的主观评定是研究亲子间面孔相似性的三种基本范式。以往的研究表明当父子(女)间面孔相似性越高时, 父亲对子女的亲子投资水平越高, 父亲感知到的焦虑水平越低, 父亲的身体也越健康, 与此同时, 当父子(女)间面孔相似性越高时, 父亲对女儿会表现出更高的性厌恶水平。未来的研究可以进一步关注文化因素在该效应中的调节作用, 探寻新的研究范式以提高研究的内部效度和外部效度, 以及探讨影响亲子间面孔相似性感知的因素。     

Infanticide and maternal aggression: Synchrony of male and female reproductive strategies in mice

Thirty-six percent of male mice from three strains attacked newborn pups sired by another male. No male attacked its own offspring. Females did not show differential aggression toward males likely (strangers) or unlikely (sires) to attack their pups. Both forms of aggression were unaffected by housing in rooms which did or did not contain the aggression targets. The three strains differed in strength of maternal aggression but not in the incidence of infanticide. Females showed more aggression when mated with males of the same, rather than a different, strain but no differences with intruders of the same or a different strain. Infanticide by males is best viewed as a postcopulatory, intermale-competition strategy, and maternal aggression as a counter strategy.     

PATERNITY BETWEEN LAW AND BIOLOGY: THE RECONSTRUCTION OF THE ISLAMIC LAW OF PATERNITY IN THE WAKE OF DNA TESTING

Abstract: The discovery of DNA paternity tests has stirred a debate concerning the definition of paternity and whether the grounds for such a definition are legal or biological. According to the classical rules of Islamic law, paternity is established and negated on the basis of a valid marriage. Modern biomedical technology raises the question of whether paternity tests can be the sole basis for paternity, even independently of marriage. Although on the surface this technology seems to challenge the authority of Islamic law in this area, the paper argues that classical Islamic rulings pertaining to paternity issues continue to hold higher authority even in cases of conflict with modern technology‐based alternatives. Through closer analysis, the paper traces the emergence of a differentiation in the function of DNA tests between identity and paternity verification. While the former is accepted without reservation, the latter is approved only when it does not violate the rulings of Islamic law.