We show that previous results from epistemic network models showing the benefits of decreased connectivity in epistemic networks are not robust across changes in parameter values. Our findings motivate discussion about whether and how such models can inform real-world epistemic communities. As we argue, only robust results from epistemic network models should be used to generate advice for the real-world, and, in particular, decreasing connectivity is a robustly poor recommendation.

In this paper, we examine the relationship between general relativity and the theory of Einstein algebras. We show that according to a formal criterion for theoretical equivalence recently proposed by Halvorson and Weatherall, the two are equivalent theories.

A classic result in the foundations of Yang-Mills theory, due to J. W. Barrett ["Holonomy and Path Structures in General Relativity and Yang-Mills Theory." Int. J. Th. Phys. 30, ], establishes that given a "generalized" holonomy map from the space of piece-wise smooth, closed curves based at some point of a manifold to a Lie group, there exists a principal bundle with that group as structure group and a principal connection on that bundle such that the holonomy map corresponds to (...) the holonomies of that connection. Barrett also provided one sense in which this "recovery theorem" yields a unique bundle, up to isomorphism. Here we show that something stronger is true: with an appropriate definition of isomorphism between generalized holonomy maps, there is an equivalence of categories between the category whose objects are generalized holonomy maps on a smooth, connected manifold and whose arrows are holonomy isomorphisms, and the category whose objects are principal connections on principal bundles over a smooth, connected manifold. This result clarifies, and somewhat improves upon, the sense of "unique recovery" in Barrett's theorems; it also makes precise a sense in which there is no loss of structure involved in moving from a principal bundle formulation of Yang-Mills theory to a holonomy, or "loop", formulation. (shrink)

La pandemia de la COVID-19 evidencia posibilidades, límites y nuevos desafíos para la ciencia abierta. En este artículo se presentan los resultados de una investigación que tuvo como objetivo contribuir a la comprensión del papel de la ciencia ciudadana, una de las vertientes de la ciencia abierta, en el abordaje de los problemas plantados por la pandemia. Para ello, se llevó a cabo una revisión de literatura especializada y se acometió la identificación y la categorización de estas iniciativas ciudadanas en (...) Brasil durante el periodo del brote de COVID-19. Los resultados de esta investigación muestran un aprendizaje mutuo entre los abordajes de la ciencia ciudadana y las acciones participativas para reducir los riesgos de desastres. Este aprendizaje, por un lado, fortalece el papel de la producción ciudadana de datos, información y conocimiento relevante para la prevención, resiliencia y gestión de estos riesgos; y, por otro lado, dilata el alcance de la ciencia ciudadana para afrontar situaciones de emergencia y desastre, al tiempo que refuerza el carácter situado de este enfoque. [pt] A pandemia da COVID-19 evidencia possibilidades, limites e novos desafios à abertura da ciência. Neste artigo, apresentam-se resultados de pesquisa que objetivou contribuir para o entendimento do papel da ciência cidadã, uma das vertentes da ciência aberta, para lidar com as questões postas pela pandemia. Além de revisão da literatura, o estudo envolveu a identificação e a categorização de iniciativas cidadãs dessa natureza, no Brasil, durante o período de eclosão da COVID-19. Observa-se o aprendizado mútuo entre as abordagens da ciência cidadã e as ações participativas para redução de riscos de desastre. De um lado, fortalece o papel da produção cidadã de dados, informações e conhecimentos relevantes à prevenção, resiliência e gestão desses riscos; e, de outro, alarga o escopo da ciência cidadã para o enfrentamento de situações de emergência e desastre, ao mesmo tempo em que reforça o caráter situado dessa abordagem. (shrink)

Reactive oxygen species (ROS) are highly reactive molecules produced in cells. So far, they have mostly been connected to diseases and pathological conditions. More recent results revealed a somewhat unexpected role of ROS in control of developmental processes. In this review, we elaborate on ROS in development, focussing on their connection to epithelial tissue morphogenesis. After briefly summarising unique characteristics of epithelial cells, we present some characteristic features of ROS species, their production and targets, with a focus on proteins important (...) for epithelial development and function. Finally, we provide examples of regulation of epithelial morphogenesis by ROS, and also of developmental genes that regulate the overall redox status. We conclude by discussing future avenues of research that will further elucidate ROS regulation in epithelial development. (shrink)

The Prophet, whom Allah sent the whole universe and humanity as mercy, produced not only many judicial rules and practices regarding the relations of a person with Allah and other people in Islam but also uttered sentences about the explanation of holy book, Qur’an, and about how this book can be put into practice. The issue whether and how much these sentences of the prophet (hadith) and acts of the prophet (Sunnah) are binding have been discussed by both hadith methodologists (...) and fiqh methodologists; accordingly, a great many studies were produced. In hadith methodology, the discussions about Sunnah of the Prophet had their reflections in the studies of fiqh methodology; and especially Hanafi jurists propounded considerations about this issue. Hussein b. Ali al-Saymerî (d. 436/1045) one of these jurists, is the student of Muhammad b. Mûsa al-Khwârizmî (d. 403/1012), who is the student of Abû Bakr al-Jassâs (d. 370/980), who is an authority in Hanafi methodology. al-Saymerî, who adopted the method of al-Jassâs in fiqh methodology, systematically categorized several fundamental issues which were discussed and were related to fiqh methodology during his time; and he defended the views of Hanafi scholars about these issues primarily against Shâfiʿîs and several fiqh and kalam schools. While presenting the views and evidences of Hanafis, al-Saymerî initially applied for the views of founder imams of Hanafi sect such as Abû Hanîfa, Abû Yusuf and Muhammad al-Shaybânî; following these scholars, he greatly benefited from Hanafi scholars from Iraq region, such as Abu’l-Hasan al-Karkhî (d. 340/952) and his student, Abu Bakr al-Râzî al-Jassâs. When the relevant parts of his study is analysed, it is seen that the effect of al-Jassâs is especially noticeable. In this article, we will study the binding issue of the Sunnah of the Prophet within the context of al-Saymerî’s study, which has extant and is called Mesâilu’l-hilâf fi usûli’l-fiqh. We consider that the different attitude of al-Saymerî about the Sunnah of the Prophet from the other methodologists and hadith scholars and the underlying reasons of these differences are worth to be investigated and emphasized. (shrink)

Hobbes and Rousseau relied heavily upon the time-worn metaphor of the body politic to describe and explain their respective political visions. But while Rousseau’s use of the metaphor is largely ac...

In this study, the term of ‘blessing’, which is a basic Qurʾānic concept, is analyzed. In this regard, the study focuses on the definition of ‘blessing’, its different meanings in the various contexts, synonyms and antonyms and its leading individuals to the dimensions of faith, worship and morality. These subject matters are studied by taking into consideration of the meanings of ‘blessing’ in the Qurʾān and commentators’ explanations about the word. The expression of the ‘blessing’ in the Qurʾān indicates that (...) the word has an extensive and constructive meaning. The fact that having an extensive meaning demonstrates that the points the word encompasses can be determined to some extent. It is exemplified in the Qurʾān what can be regarded as ‘blessing’. Furthermore, the commentators determine various meanings to the word by considering the contexts in which the word is used. It is understood that the aim of using the word in the Qurʾān is to lead the individuals to the dimensions of the faith, worship and morality. It is possible for people to be grateful to God by making this aim more visible in their lives. -/- SUMMARY The word blessing mentioned in the Qurʾān has a general meaning. This type of words contains more than one subject inside them. The fact that the blessing contains more than one subject may be seen in the Qurʾānic attributions of it as well as seen in its dictionary and term meaning. Also, the way of explaining a part of subjects, which are in its content, points out this aspect. Thus, in the Qurʾān, the new ones are being added in another place to things referred as blessing in one place. Also, sometimes the blessings with entirely different contents are included. For example, the blessing of God upon Muslims is His support on a battle. In another place rendering them as brothers is a blessing. This is also an example that blessing was partially explained in the Qurʾān. The explanation of the word is sometimes in the same context and sometimes in different contexts. For example, in the verse 47 of the Surah al-Baqara, the blessing given to Jews in the time of Moses is mentioned. Starting from the next verse, between the verses 49-61, these blessings are aligned. Moreover, the blessing that was given to prophets, martyrs and righteous (siddiq) can be an example for the explanation of blessing in the different verses of the Qurʾān. These people who have been given blessing are mentioned side by side in the verse 69 of al-Nisā’. However, it is not explained that what the blessing given to them is. Each blessing mentioned is explained in different places in the Qurʾān. While some part of blessing is determined by the Qurʾān itself, the other part is attempted to be determined by commentators. Given that the explanations in the Qurʾān and commentaries, the subjects that affected by blessing can be divided into two as tangible and intangible blessings. The resources offered for humans to maintain their lives, emancipation a slave, the wind that helps the ship to move forward and Muhammad himself as a prophet are the tangible ones. Faith, miracle, mercy, reward, retrieving safety, the place where all kind of resources and ease, peace and happiness exist (Heaven) can be commentated as intangible blessings. The subjects included in the concept of blessing in the Qurʾān are changing according to the context. The blessing from God upon believers is “the faith granted by God on the earth” in one place, and “the Heaven bestowed in the afterlife” in another place. When determining the close and opposite meanings of the word, it should not be ignored this aspect of the blessing. In other words, it changes according to the context. For example, if the content of blessing is “the resource presented to human beings”, the close meaning of it in the Qurʾān is “compassion”, the opposite meaning of it is “harm”. However, if the thing that fell within blessing is “reward”, the close meaning will be “good deed”, opposite meaning will be “torment”. The blessing changes according to the addressed person as well. It is the all kind of resource that God presents to humans if the human kind is in question. If it is for a believer, it means moral support and every kind of reward as well as the resources offered. However, if it is relevant to a prophet, the prior meaning is prophethood as well as the meanings above. The expression of blessing in the Qurʾān helps us to have more opinion about it. For example, blessing has a positive meaning according to the Qurʾān. The word’s positive aspect is emphasized by comparing things that cannot be blessing to negative person types. The perception of blessing of Pharaoh and a hypocrite that is expressed in the Qurʾān can be evaluated in this content. According to the Qurʾān, the blessing they qualify is not in the context of blessing. Another aspect that draws attention in the expression of blessing in the Qurʾān is the relationship between the blessing giver and receiver. This relationship between God and servants takes place both in the earth and the afterlife. First, God has presented blessing to humans by considering that he/she is worth creating. Human beings show ingratitude or gratitude for being created and all other blessings. Here, the blessing is a test tool for humans. God responds according to the behaviors of human beings in test. He gives this response either only in the afterlife or both in the afterlife and the earth. If the humans respond the blessing with gratitude, God puts him/her to the heaven full of blessings in the afterlife. The blessing here is the result of the test on the earth. So the purpose of expression of blessing in the Qurʾān is to direct the humans to exhibit the behavior with that God is pleased, gain His contentment, deserve His heaven full of blessings. This is the reason that prophets remind the blessings of God to humans while they invite them to religion. Prophets invite people to believe, worship and be moral toward God as a response to these blessings. -/- Even though the content of blessing changes according to addressed person and time, the principle of the relationship between God and His servants does not change. Blessing and gratitude or blasphemy shall continue to exist as long as mankind exists. Here, the principle of “Every blessing’s gratitude is its own type” can be remembered. This principle recommends that giving thanks to God by tongue only for blessings will not be enough. Because of that, how should be grateful for different blessings should be exemplified. These definitions containing examples help us to understand better the purpose of expression of blessing in the Qurʾān. For example, the gratitude for humans’ own equipment can be through remembering always Him who gave that equipment, obey and worship Him constantly. Gratitude for children and good fortune happens by directing them towards God’s sake. As for the gratitude for the blessing of the universe, that contains signs of the existence of God, can be through recognizing his/her Creator and maintaining its existing order. If human beings break this order, he/she would be ungrateful because this would be an attitude against the one who created this order. Just as a servant might be ungrateful to God when he/she does not appreciate the blessing of prophet that reminds us God, exhibiting negative attitude against the universe that points out the existence of God is a kind of ungratefulness against God as well. So that, the blessing carries humans to faith and worship dimensions and also to moral dimension in terms of relationship between himself/herself and other things. The modern-day people need this Qurʾānic perspective. A human being should review his/her relationship between himself/herself, God, other people and the nature, then he/she should try to reach the Qurʾānic dimension by being grateful properly for blessings that he/she has. (shrink)

Çalışmada İslam tefsir geleneğinin erken dönem müfessirlerinden biri olan Mâtürîdî’nin (ö.333/944) İbn Abbas (ö. 68/687-688) rivayetlerine yaklaşımı incelenmektedir. Bilindiği üzere onun kaleme aldığı Te’vîlâtü’l-Kur’an, dirayet ağırlıklıdır. Ancak eserdeki dirayet içerikli yorumları rivayetten yoksun değildir. Zira tefsirinde az da olsa Hz. Peygambere isnad edilen rivayetlere, bolca sahabe ve tabiine ait rivayetlere rastlanır. Sahabe nesli içerisinde tefsirde ilk sırada yer alan İbn Abbas, Te’vîlâtü’l-Kur’an’da da rivayet sayısı bakımından ilk sırayı korumaktadır. Tespitimize göre bu eserde İbn Abbas’a ait 579 rivayet vardır. Bu sayıyla (...) İbn Abbas Te’vîlâtü’l-Kur’an’da sahabe arasında ilk sırada yer almaktadır. Bu eserde İbn Abbas’ın önemi aslında rivayet bakımından ilk sırada yer almasıyla ilgili değildir. Mâtürîdî’ye göre genelde sahabenin, özelde İbn Abbas’ın tefsirde ayrı bir önemi vardır. Zira o, tefsiri sahabeye özgü bir alan olarak görmektedir. Bilindiği üzere Mâtürîdî, tefsir te’vil ayrımı yapmakta, tefsirin sahabeye te’vilin ise alimlere ait olduğunu söylemektedir. Onun bu yaklaşımı çalışmada Te’vîlâtü’l-Kur’an’daki İbn Abbas’a ait 579 rivayet üzerinden incelenmektedir. Çalışma iki kısımdan oluşmaktadır. İlk kısımda Mâtürîdî tefsirindeki İbn Abbas rivayetleri biçim ve içerik açısından tanıtılmaktadır. Rivayetlerin uzun veya kısa oluşu, ayet içerip içermemesi, İbn Abbas’ın senedde her zaman sözün sahibi değil, Hz. Peygamberin sözünü aktaran biri olarak yer alması ona ait rivayetlerin biçimsel yönü olarak görülebilir. Rivayetlerin Te’vîlâtü’l-Kur’an’daki görünümü de bu bağlamda ele alınabilir. Bu hususta önce Mâtürîdî’nin İbn Abbas rivayetleri için hem te’vil hem tefsir ifadesini kullandığını belirtmeliyiz. O tefsirinin genelinde sadece sözü söyleyenin ismini zikrederek senedin geriye kalan kısmını hazfettiği için tefsirinde senedin yer alış biçimi üzerinde durma imkânı yoktur. Rivayetin metin kısmını ise Mâtürîdî bazen olduğu gibi alıntılamakta bazen özetlemekte bazen de başkasına ait sözü zikrettikten sonra İbn Abbas’a ait sözün, aktardığı söze benzediğini söylemekle yetinmektedir. Te’vîlâtü’l-Kur’an’da İbn Abbas’a ait rivayetlerin içeriğine gelince rivayetler, hurûf-ı mukattaa, sebeb-i nüzul, kıraat, nesh gibi Kur’an ilimleri, kelime açıklamaları, ayet yorumları şeklinde sınıflandırılabilir. O ayetin bazen bir kesitini bazen bütününü yorumlamakta, yorumlarını nüzul dönemi veya sonrası olaylar ile ilişkilendirebilmektedir. Çalışmanın ilk kısmı bu çerçevededir. İkinci kısımda ise Mâtürîdî’nin İbn Abbas rivayetlerini ayeti yorumlamada kullanışı ele alınmaktadır. Te’vîlâtü’l-Kur’an’a bu açıdan bakıldığında Mâtürîdî’nin farklı tavırlar sergilediği rahatlıkla görülebilir. Zira o, bir âyetin yorumu için İbn Abbas’ın görüşünü bazen benimsemekte, kendi görüşüne dayanak etmekte, bazen başka rivayet zikretmeksizin onun rivayetiyle yetinmekte, bazen onun rivayetini diğer rivayetler içerisine almakta ancak bunlara ilişkin bir değerlendirme yapmamaktadır. Bunun yanı sıra o bazen İbn Abbas tefsirini tercih etmemekte hatta eleştirmektedir. Mâtürîdî’nin İbn Abbas’ın yaptığı yorumu gereksiz gördüğü yerler de bulunmaktadır. (shrink)

Al-Qāḍī Ḥusayn al-Marwarrūdhī is one of the important representatives of Khurāsān Shāfi‘ī School. Al-Ta‘līḳa is his famous work, which is one of the first commentaries of al-Muzanī’s Mukḫtaṣar. One of the important features of this work is the introduction to some of the subjects of ijtihād (process of juristic legal reasoning), taqlīd (acting upon the word of another without asking for specific proof), ijmā‘ (consensus of jurists) and view’s of the companions of the Prophet. The first systematic, complete and detailed (...) works of uṣūl al-fiqh (Islamic legal theory) that belonged to the Khurāsān Shāfi‘ī School have reached to the present day belong to the second half of the V./XI. century. Making research on the studies which were done about uṣūl al-fiqh and formed the basis of this period is essential to follow the development of uṣūl al-fiqh of the Khurāsān Shāfi‘ī School. Transfer of the uṣūl al-fiqh in al-Qāḍī Ḥusayn al-Marwarrūdhī’s al-Ta‘līḳa make it possible to determine the literatüre, which was formed in Khurāsān region in the period from the death of Shāfi‘ī to the first half of the V./XI. century until the first half of the Khurāsān region, which allows the determination of the uṣūl al-fiqh. In this study, on the basis of ijmā‘, al-Qāḍî Ḥusayn al-Marwarrūdhī’s method in al-Ta‘līḳa will be examined.Summary: Al-Qāḍī Ḥusayn al-Marwarrūdhī is considered to be one of the most important representatives of the Khurāsān Shāfi‘ī School. In addition to receiving fiqh education from al-Qaffāl al-Marwazī, who is accepted as the founder of the Khurāsān Shāfi‘ī School in Shāfiʿī fiqh circles. Al-Qāḍī Ḥusayn, one of the most distinguished students of al-Qaffāl al-Marwazī, has become one of the important bearers of the fiqh heritage of Khurāsān Shāfi‘ī School. The fact that the epithet “el-kāḍî” is used in the works of Khurāsān Shāfi‘ī School to absolutely refer to al-Qāḍî Ḥusayn, is another issue that shows his being authority on fiqh. Al-Qāḍī Ḥusayn al-Marwarrūdhī has accomplished many works in the field of fiqh. The most famous and most important work of al-Qāḍī Ḥusayn is the al-Ta‘lîḳa, written according to the Mukḫtaṣar arrangement style of al-Muzanī. He is often cited as the author of the well-known work al-Ta‘lîḳa in the sect. Al-Ta‘lîḳa, commonly cited in fiqh studies to refer to the views of al-Qāḍī Ḥusayn, is one of the first commentary on Mukḫtaṣar by Muzanī. With these characteristics, al-Ta‘lîḳa is one of the outstanding manuscripts for exploring the fiqh legacy of the Khurāsān Shāfi‘ī School. Another important feature of this text is that uṣūl al-fiqh issues such as ijtihād, taqlīd, ijmā‘ and view’s of the companions of the Prophet (qawl al-ṣaḥābah) have been covered in the introduction of the work. Al-Qāḍī Ḥusayn discusses the issues of evidentiality and types of ijmā‘ and ijmā‘ of ṣaḥābah in the chapter on ijmā‘ in al-Ta‘lîḳa. Al-Qāḍī Ḥusayn also handles the debates on view’s of the companions of the Prophet in the section on ijmā‘ of ṣaḥābah. It is also seen that the proofs proposed for evidentiality of ijmā since Shāfiʿī’s period became more versatile and differed. The fact that the arguments al-Qāḍī Ḥusayn cites in the chapter of the evidences of ijmā‘ were also mentioned by his contemporary, al-Māwardī, an Iraqi Shāfiʿī jurist, points out the accumulation of knowledge in terms of proofs of ijmā. Al-Qāḍī Ḥusayn makes two related distinctions that are fundamentally related to the types of ijmā. The first is the division between ijmā supporters, those who argue for knowability of ijmā, and their opponents. According to this, ijmā is divided into two parts as ‘āmm (general public) ijmā‘ and khāṣṣ (scholars) ijmā‘. Opposition to ‘āmm ijmā‘, such as fardhs (obligations) in prayer, rawātib sunnah (the practice that the Prophet regularly performed) and feast prayer requires kufr (blasphemy). Al-Qāḍî Ḥusayn, who considers issues such as ‘awl (a sharing method in Islamic inheritance law), mut‘a marriage (a type of temporary marriage) and riba’l-faḍl (interest in exchange or sale transactions) which are seen as controversial ijmā‘ issues in literature, as khāṣṣ ijmā‘ and evaluates opposition to this type of ijmā‘ as fisq (impiety). The second division al-Qāḍī Ḥusayn makes is between ijmā‘ based on the text and apparent comparison, and the ijmā‘ based on hidden comparison. Al-Qāḍī Ḥusayn thinks that the opposition to ijmā‘ that is based on ijtihād or the text in terms of sanad (chain of narrators), requires blasphemy. In a sense, this is to accept ijmā‘ as a provision on an equal basis and to reduce the distinctions of ijmā‘ to literary level. Al-Qāḍī Ḥusayn also discusses evidentiality of qawl al-ṣaḥābah in connection with the issues of ijmā‘. Al-Qāḍī Ḥusayn opposes the thesis that ijmā‘ is only limited to companions’ era and argues that it can be realized in any century after the Prophet. Al-Qāḍī Ḥusayn, who discusses ṣaḥābah’s ijmā‘ under two categories: the views of ṣaḥābah that have gained prevalence among other ṣaḥābahs and those that have not gained prevalence among other companions, argues for evidentiality of qawl al-ṣaḥābah, which have gained prevalence and known not to be opposed. He provides significant information on ijmā‘ discussion in Shāfi‘ī fiqh methods with regard to the evidentiality of this type of qawl al-ṣaḥābah, which is referred ijmā‘ al-suqūtī (consensus based on lack of opposition-silence). The knowledge al-Qāḍī Ḥusayn cites with regard to the evidentiality of qawl al-ṣaḥābah which have not gained prevalence among other ṣaḥābahs differs from Māwardī, one of his contemporary, and his predecessors. The fact that he cites Shāfi‘ī’s previous and latest views with regard to the state of such qawl al-ṣaḥābah in the face of qiyās (legal analogy) enables him to make comparison using uṣūl material available in his era. Al-Qāḍī Ḥusayn, who mentions debatable issues among ṣaḥābah, makes controversial narrations. While al-Qāḍī Ḥusayn reports that there is not any conflict on the argument that it is legitimate to express a third view with regard to issues on which ṣaḥābah is divided in two groups and fall into conflict, his contemporary al-Māwardī and other Shāfi‘ī jurists report that it is not legitimate to propose a third view on such an issue as there is ijmā‘ on these issues. (shrink)

The ijtihâd issues are among important problems of uṣûl al-fiqh (Islamic legal theory). Given al-beyân el-ijtihâd in the meaning of interpreting naṣṣ (text) and al-qiyâs el-jtihâd in the meaning of reaching a verdict of a new issue which is not determined by naṣṣ, it is possible to say that mujtahid (a jurist) is actively in the ijtihâd activity. Thus, the ijtihâd issues has been discussed in uṣûl al-fiqh since early period. The fact that Shâfi‘î refers to ijtihâd issues in his (...) works which have arrived the present day shows that there is a rich accumulation of knowledge about ijtihâd discussions in early period. After Shâfi‘î, the issues were discussed by scholars of Islamic legal theory. Among the Shâfi‘î (uṣûl al-fiqh) works which have arrived the present day, the first work that deals with ijtihâd issues in an ordered, systematic and detailed way is the work of al-Mâwerdî’s el-Ḥâvi’l-Kebîr. In this study, al-Mâwerdî discusses many issues in uṣûl al-fiqh, especially the definition of ijtihâd, its types, the relation between ijtihad and qıyâs, the qualities of mujtahid, iṣâbet (right) and ḫaṭâ’ (fault) in ijtihâd and the provision of ijtihâd. The debates on the ijtihâd issues in Shâfi‘î uṣûl al-fiqh before al-Mâverdî are important our subject. al-Mâwerdî’s view of uṣûl has a close relationship with the accumulation of uṣûl developed prior to him. al-Mâwerdî mentions the views of many scholars who have contributed the accumulation of the sect in the ijtihad issues, especially Shâfi‘î. He refers to the views of scholars from sects other than Shâfi‘î in the issues he discussed. From this point of view, it is certain that to determine the ijtihâd issues in al-Mâwerdî’s el-Ḥâvi’l-Kebîr will also help us to determine the framework and course of debates on ijtihâd in the classical period. (shrink)

The principle of homophily says that people associate with other groups of people who are mostly like themselves. Many online communities are structured around groups of socially similar individuals. On Twitter, however, people are exposed to multiple, diverse points of view through the public timeline. The authors captured 30,000 tweets about the shooting of George Tiller, a late-term abortion doctor, and the subsequent conversations among pro-life and pro-choice advocates. They found that replies between like-minded individuals strengthen group identity, whereas replies (...) between different-minded individuals reinforce in-group and out-group affiliation. Their results show that people are exposed to broader viewpoints than they were before but are limited in their ability to engage in meaningful discussion. They conclude with implications for different kinds of social participation on Twitter more generally. (shrink)

To make sense of large data sets, we often look for patterns in how data points are “shaped” in the space of possible measurement outcomes. The emerging field of topological data analysis offers a toolkit for formalizing the process of identifying such shapes. This article aims to discover why and how the resulting analysis should be understood as reflecting significant features of the systems that generated the data. I argue that a particular feature of TDA—its functoriality—is what enables TDA to (...) translate visual intuitions about structure in data into precise, computationally tractable descriptions of real-world systems. (shrink)

Using results from evolutionary game theory, we analyze the conditions under which guilt can provide individual fitness benefits to actors, and so evolve. In particular, we focus on the individual benefits of guilty apology. We find that guilty apology is more likely to evolve in cases where actors interact repeatedly over long periods of time, where the costs of apology are low or moderate, and where guilt is hard to fake.

Poets are "the institutors of laws, and the founders of civil society, and the inventors of the arts of life, and the teachers who draw into a certain ...

This manuscript is intended as a technical supplement to Rosenstock and O'Connor. Calculations are presented for the expected return for strategic players of an iterated prisoner's dilemma which includes guilt-prone grim trigger players, who apologize when they accidentally defect, as well as fake apologizers who in fact act as defectors. See Rosenstock and O'Connor for a discussion of how the results presented here can be interpreted, using ESS analysis and exploring basins of attraction under the replicator dynamics, to help understand (...) the conditions under which guilt can evolve. I hope for this note to both make it easier for others to understand and build on those results, and to demonstrate how expected returns can be calculated for various strategies in various games. (shrink)

Mothers use online resources frequently to obtain information on pregnancy, birth, and parenting. Yet, second-time mothers may have different concerns than first-time mothers given they have a newborn infant and another child at home. The current study conducted an on-line textual analysis of the posts of second-time mothers during pregnancy and the first months postpartum on the BabyCenter LLC website, one of the largest online parenting communities. Latent Dirichlet Allocation analysis on roughly 16,000 posts to BabyCenter birth clubs in 2017 (...) by approximately 4,000 users revealed second-time mothers relied on the online support of the BabyCenter community to share and discuss topics of pregnancy, birth, and child rearing. Second-time mothers also raised questions about preparing their firstborn children for a new baby sibling, how they would care for two children, whether they would love the second one as much as the first, and how the second child would change family dynamics. Future research needs to recognize that second-time mothers may have distinct concerns surrounding the birth of their second baby, and antenatal education and parenting classes may need to be modified to be more inclusive of these women’s needs and perspectives. Online parenting communities offer avenues to support women as they make the transition from one child to two and may provide targeted opportunities to disseminate evidence-based practices that can assist these women and their children. (shrink)

Comparative study on the fundamentals of Advaita Vedanta and Mādhyamika Buddhism.

The aim of this study is to obtain information about the awareness of social studies teacher candidates about the refugee problem in Turkey. In this regard, a group of teacher candidates are asked their opinion on the subject of refugees in Turkey and as to how they perceive the problem. Interview method is used in the study for data collection. The obtained data is subjected to content analysis via Nvivo 8 software package. As a result of the study, it is (...) observed that the participants residing in provinces with high refugee population have a more negative attitude towards refugees, whereas the ones in areas with no refugee population have a more positive attitude towards them. It is also observed that, in general, teacher candidates do not pay any special effort to acquire information about the subject. (shrink)

In this study, we aimed to investigate how prospective science teachers, who participated in a series of explicit-reflective activities for NOS teaching, understood "science in a social and cultural context" in the context of a biographical documentary film. We adopted a phenomenological approach. The data were analyzed descriptively by considering the aspects of nature of science and the levels of understanding as defined in Dilthey's hermeneutic approach. In this way, we determined participants’ levels of hermeneutic understanding regarding the nature of (...) science. The findings show that the participants regarded science within the framework of aspects of the consensus view blended with somewhat authentic interpretations and at a basic level of understanding from the point of view of hermeneutics. This finding highlights the importance of integrating the hermeneutic approach into the teaching process in understanding science. (shrink)

Epidemiological models directly shape policy responses to public health crises. We argue that they also play a less obvious but important role in solving certain coordination problems and social dilemmas that arise during pandemics. This role is both ethically and epistemically valuable. However, it also gives rise to an underappreciated dilemma, as the features that make models good at solving coordination problems are often at odds with the features that make for a good scientific model. We examine and develop this (...) dilemma in the context of the COVID-19 pandemic, and suggest extensions to other domains. (shrink)

What is the role of cultural archives in creating and sustaining connections between diasporic communities? Through an analysis of an audiovisual archive that has sought to bring together representations of and by African, Caribbean and Asian people, this article discusses the relationship between diasporic film, knowledge production and feminist solidarity. Focusing on a self-curated, UK-based archive, the June Givanni Pan-African Cinema Archive, we explore the potentiality of archives for carving out spaces of diasporic connectivity and resistance. This archive assembles the (...) holdings of pan-African films and film-related materials, built over several decades by June Givanni, a Guyanese-born London-based film curator. Givanni’s archive embodies her long relationship with the intersecting worlds of African and Asian diasporic cinema, which hold deep connections to Black British heritage through global networks spanning across empire. In the making of this cultural analysis, we employ a co-produced, decolonial methodological approach by designing and producing the article in collaboration with Givanni over a two-year period. We aim to foreground the role of feminist labour (academic and practitioner) as agents of change who are reclaiming stories, voices and memory-making. The wider backdrop to this co-produced analysis is the ongoing resilience of a cultural amnesia that has pervaded the Black British experience and the current fragility of Black arts and cultural spaces in the UK. Our question is how might archives help us map the connections between racialised ideas of belonging, memory politics and the reconfiguration of colonial power whilst also operating as a site of feminist connectivity? (shrink)

El proceso educativo sufrió un drástico cambio debido a la pandemia que padecimos a nivel mundial, tuvimos que aprender a usar las herramientas tecnológicas en la enseñanza y en el aprendizaje. Por lo que siguiendo esta tendencia planteamos la utilización de la aplicación “Física M-Lab” en su primera versión para la enseñanza de la cinemática.Como estamos en el campo de las ciencias sociales, utilizamos el diseño cuasiexperimental que nos permitió concluir en que los aprendizajes mejoraron significativamente.

Scholarly writings on Jaina philosophy and doctrines.

In lieu of an abstract, here is a brief excerpt of the content:Using The Spiritual Exercises of Ignatius of Loyola as a Basis for a Buddhist-Christian RetreatLen Tischler and Andre Delbecqorigin of the retreatJesuit (Catholic) universities have struggled to preserve their religious worldview and pass it on to their students, faculty, and staff. Given that most faculty and administrators at these universities are laypeople and many are not Catholic, the universities depend largely on their campus mission/ministry offices for this purpose. (...) One of the primary methods of sharing their worldview has been to provide retreats for students.The retreats are introspective with a religious and Jesuit orientation. Most student retreats are conducted over a weekend; some over a full week. Most Jesuit universities get fewer than ten percent of their students to attend one retreat in their four years on campus. Far fewer students attend more than one retreat. These schools also attempt to encourage faculty and staff to attend similar retreats, and participation in these retreats is similarly modest.Retreats have been a primary tool for the formation of Jesuit priests. Their formation program includes taking at least two retreats of twenty-eight to thirty days each. These retreats use the Spiritual Exercises of Ignatius of Loyola, a specific pattern of reflective meditation and introspection over twenty-eight days that leads to greater clarity about one’s life. The Spiritual Exercises are deeply theistic and are focused on the person of Jesus.Jesuit universities have an increasing number of non-Catholics and non-Christians. For most Christians, shorter retreats or spiritually directed meditations based on the Exercises and undertaken over a number of weeks (referred to as the nineteenth annotation form) are the preferred form. However, there have been limited resources for juxtaposing the Ignatian Exercises with non-Christian traditions.With the above in mind, the authors designed a three-day retreat that follows the pattern and purpose of the Exercises for a Christian, but which presents in parallel [End Page 213] meditations and reflections from the Buddhist tradition. (Sarita Tamayo-Moraga, Bo Tep, and Juan Velasco were co-designers of the retreat and co-authors of the manuscript for the retreat.) This allows Ignatian perspectives on the unfolding spiritual journey and Buddhist wisdom to be shared between Christians and Buddhists. To test our design, a first retreat was undertaken by spiritually mature adults with some experience with the interface between Buddhism and Christianity.the retreatThe Spiritual Exercises are published with contemporary commentary in a number of books. Originally written in the early1500s, they have been rewritten or interpreted for modern times. Often both the original commentary by Ignatius and a contemporary interpretation are provided. Since our retreat was only three days, the essence of each section of the Exercises was summarized in a page or so. With the help of three Buddhist teachers (Sarita Tamayo-Moraga, Bo Tep, and Juan Velasco), we then spent the better part of a year meditating with the Ignatian passages and then searching a variety of Buddhist writings for passages that spoke to a similar spiritual challenge within the Buddhist worldview. A manuscript (Andre L. Delbecq, Sarita Tamayo-Moraga, Bo Tep, Len Tischler, and Juan Velasco, Ignatius and the Buddha in Conversation: A Resource for a Religiously Plural Dialog, self-published, 2014) was created that comprised six sections, each containing a summary of the essence of a section from the Exercises followed by the related Buddhist writings. Original artwork related to both traditions was prepared by a talented Zen artist.For the initial retreat we chose people who had a deep background in both traditions with approximately an equal number of Buddhists and Catholics. Since our focus was Jesuit universities, we chose mostly academics, but there were also two executives. Participants were asked to read the manuscript containing the reflections from the Exercises and Buddhist wisdom before the retreat so that they would be familiar with the content. Catholics and some Buddhists also read the Exercises in full. There were twelve participants.The retreat was structured into six parts. Each part began with two thirty-minute meditations, one on the Ignatian Exercises in the corner with the Ignatius icon, the other on the Buddhist quotes in the corner with... (shrink)

The issue of how to read and interpret the Qur’ān has been the subject of Islamic sciences such as Kalām, Fiqh and Taṣawwuf. Each discipline has put forward an interpretation methodology according to its point of view. While interpreting the verses, the Ṣūfīs who are members of Taṣawwuf also produced some methodological concepts for several reasons. They interpreted the Qur’ān with the sign (ishāra), a method of interpretation suitable for the characteristics of Taṣawwuf. The ishāra is a secondary method of (...) interpretation compared to tafsīr (the Qur’ānic exegesis). In this context, the ishārī tafsīr is the interpretation of the verses by kashf and ilhām. It is also the narration of the signs claimed to exist in the verse. However, while the ṣūfīs wanted to explain their inferences regarding the verses on the one hand, they had to hide them on the other hand. These attitudes led to the paradox of statement-concealment as a problem peculiar to the ishārī tafsīr. The goal of this study is to evaluate the tradition of ṣūfī tafsīr / exegesis in terms of this paradox. One of the aims of this study is also to determine the tools that the ṣūfīs use for some reasons in interpreting the Qur’ān and how they conceptualize them. In this perspective, the function of symbolic means such as letter and sign in Taṣawwuf has been emphasized. The formation of a number of methods and instruments specific to ishārī interpretation and the influence of Ibn al-ʿArabī on this method have been discussed. To achive the objectives of this paper, this research article conducted a detailed literature review. As a method, the phenomenological approach and historical methodology have been used in order to present the ṣūfīs interpretation methodology objectively. The concept analysis method has used in order to exhibit a detailed analysis of some concepts directly related to the subject of the study. There are many studies about ishārī tafsīr, the method of interpretation of the Qur’ān by the ṣūfīs in Turkey and abroad. These works are mostly of classical-style works based on determining the nature and position of the ishārī tafsīr or discussing the ishārī interpretation style of a ṣūfī mufassir. For example, Yaşar Kurt’s work titled Ni’metullah Nahcivânî ve Tasavvufî Tefsiri, Mehmet Okuyan’s work named Necmuddin Daye ve Tasavvufi Tefsiri are doctoral theses on this subject. If we need to mention some studies directly related to the subject and the purpose of our article; they are as follows: Among the works written today are Yunus Emre Gördük’s Tarihsel ve Metodolojik Açıdan İşârî Tefsir, Davut Ağbal’s book titled İbn Arabî’de İşârî Tefsir, some communiqués in the book published by Kuramer under the name of Kur’an’ın Bâtınî ve İşârî Yorumu. Ekrem Demirli’s article “Kuşeyrî’den İbnü’l-Arabî’ye İşârî Yorumculuk Hakkında Bir Değerlendirme” is one of the sources of this research. As for the works written in the past; early ṣūfīsm classics, al-Ghazālī’s and Ibn al-ʿArabī’s writings, some boks on the methodology of Qur’ānic interpretation written by scholars such as al-Dhahabī and al-Zurḳānī can be given. The findings and results obtained inthe light of this study are: The ṣūfis have named their experiences they wanted to express, as ishāra. They have wanted to declare their feelings as a result of the spiritual states they were in while reading or listening to the Qur’ān. At the same time, they tried to hide their feelings with the concern of not being understood, not being accepted, being accused or harming those who did not taste the same pleasure. The desire to explain their enthusiastic feelings and experiential knowledge on the one hand and the need to conceal them on the other, seemingly have caused a paradox. Therefore, they have made use of some conceptual tools while interpreting the Qur’ān and used a covered language. In this framework, Ibn al-ʿArabī and his successors have a different position and style. Ibn al-ʿArabī’s approach to the Qur’ān has been named as theoretical ṣūfī tafsīr instead of ishārī ṣūfī tafsīr from now on. His main instrument is iʻtibār / taʻbīr as a way of ta’wīl. His followers such as Kāşhānī, Nakhčiwānī and Brūsawī have been influential in the spread and acceptance of the ishārī interpretation activities. This article fills the gap in the literature. Because it is a methodological analysis and an evaluation of the terms and methods that ahl al-taṣawwuf have produced in order to explain or conceal some of their thoughts about the verses, it will also make a contribution to the ishārī tafsīr literature. Although the article is presented as a result of a careful and detailed research, there are some missing points in it. Thus, further studies that will contribute positively to the debates on the legitimacy of the ishārī tafsīr and its method can be produced. (shrink)