In program synthesis, we transform a specification into a system that is guaranteed to satisfy the specification. When the system is open, then at each moment it reads input signals and writes output signals, which depend on the input signals and the history of the computation so far. The specification considers all possible input sequences. Thus, if the specification is linear, it should hold in every computation generated by the interaction, and if the specification is branching, it should hold in (...) the tree that embodies all possible input sequences. Often, the system cannot read all the input signals generated by its environment. For example, in a distributed setting, it might be that each process can read input signals of only part of the underlying processes. Then, we should transform a specification into a system whose output depends only on the readable parts of the input signals and the history of the computation. This is called synthesis with incomplete information. In this work we solve the problem of synthesis with incomplete information in its full generality. We consider linear and branching settings with complete and incomplete information. We claim that alternation is a suitable and helpful mechanism for coping with incomplete information. Using alternating tree automata, we show that incomplete information does not make the synthesis problem more complex, in both the linear and the branching paradigm. In particular, we prove that independently of the presence of incomplete information, the synthesis problems for CTL and CTL * are complete for EXPTIME and 2EXPTIME, respectively. (shrink)

In the automata-theoretic approach to verification, we translate specifications to automata. Complexity considerations motivate the distinction between different types of automata. Already in the 60s, it was known that deterministic Büchi word automata are less expressive than nondeterministic Büchi word automata. The proof is easy and can be stated in a few lines. In the late 60s, Rabin proved that Büchi tree automata are less expressive than Rabin tree automata. This proof is much harder. In this work we relate the (...) expressiveness gap between deterministic and nondeterministic Büchi word automata and the expressiveness gap between Büchi and Rabin tree automata. We consider tree automata that recognize derived languages. For a word language L, the derived language of L, denoted L, is the set of all trees all of whose paths are in L. Since often we want to specify that all the computations of the program satisfy some property, the interest in derived languages is clear. Our main result shows that L is recognizable by a nondeterministic Büchi word automaton but not by a deterministic Büchi word automaton iff L is recognizable by a Rabin tree automaton and not by a Büchi tree automaton. Our result provides a simple explanation for the expressiveness gap between Büchi and Rabin tree automata. Since the gap between deterministic and nondeterministic Büchi word automata is well understood, our result also provides a characterization of derived languages that can be recognized by Büchi tree automata. Finally, it also provides an exponential determinization of Büchi tree automata that recognize derived languages. (shrink)

Selected papers, presented at the conference titled "Birds as Ornithologists: Scholarship Between Faith and Reason", held at Theg-mchog rnam-grol bshad-sgrub dar-rgyas-gling, Monastery, Bylakuppe, India, July 23-25, 2017.

Background Much like academic-industry partnerships, industry financial support of patient advocacy organizations has become very common in recent years. While financial conflicts of interest between PAOs and industry have received more attention in recent years, robust efforts to mitigate these conflicts are still limited. Main body The authors outline the possible benefits and ethical concerns that can result from financial interactions between biomedical companies and PAOs. They argue that the use of novel strategies, such as the creation of a standing (...) ethics committee, could be helpful in managing FCOIs and ensuring the warranted trust of PAO’s constituents. Although ethics committees to address FCOIs are common in the academic context, its use by PAOs is still limited. The authors conclude by describing the process of development and implementation of such an ethics committee at the Crohn’s & Colitis Foundation. Conclusions While collaborations with industry can result in conflicts of interest, PAOs can develop strategies to address those conflicts. One such strategy is the creation of a standing independent ethics committee to guide PAOs on new and/or existing programs and protocols as they pertain to their industry relationships. (shrink)

This study focuses on women who define themselves as being undecided about becoming mothers. It addresses the question of how these women navigate their lives between two main conflicting cultural directives and perceptions: pronatalism and familism entwined in perception of linear time on one hand; and individualism and its counterpart, the notion of flexible liquid society, on the other. The research is based on group meetings designated for these women, which were facilitated by the first author. Ten women participated in (...) the study—of whom, most were heterosexual, half were single, and half were partnered. Data were collected using questionnaires completed during individual interviews that preceded the group encounter; transcripts of the discussions held during the ten group sessions; and questions regarding the status of the women’s doubts about motherhood asked 4 years after participating in the group. Our findings expand the existing typology of women’s reproductive decision-making, and demonstrate how categories that are commonly perceived as binary intersect when one challenges the rigid classifications of “active decisions” and “passive decisions”; “motherhood” and “non-motherhood,” and “want to be a mother” and “do not want to be a mother.” The findings also suggest that after becoming mothers, women can change their maternal status from “non-mother” to “mother,” yet still continue to view themselves as indecisive regarding motherhood. Based on our findings, we will argue that while indecisiveness about motherhood derives from individualized neoliberal rhetoric, it simultaneously undermines that same rhetoric and contradicts the injunction to “know, to decide, to strive.” It opposes the expectation in post-feminist discourse, that women will make choices about their bodies and exert them, while also opposing the pronatalist rhetoric, and the temporal linear discourse positing that women should “move forward” toward motherhood along with the ticking of the “biological clock.” Whereas some women sought to resolve their indecisiveness, other women found that the indecisiveness leaves all options open in a manner that expands their boundaries of autonomy in a society that seeks to limit it. (shrink)

This paper offers a way to think philosophically about Andy Warhol’s Screen Tests and in particular their ethical implications. I focus on how the faces of the Screen Tests’ participants appear on the screen, making a link to the philosophy of Emmanuel Levinas. For Levinas, the human face signifies the possibility of transcending day-to-day structures of perception based on understanding, knowledge and visual representation, and can therefore invite an encounter with radical alterity. I make a connection between Levinas’s reading of (...) the face and the observations of a number of film theorists who see the cinematic close-up as a unique image, transcending the status of an ordinary perceptual phenomenon. I examine two Screen Tests, those of Bob Dylan and Ann Buchanan, using them as concrete examples of how film close-ups can open viewers to the face, in a Levinasian sense: the epiphany of radical alterity. This allows me to claim that despite Levinas’s declared hostility towards the visual, his philosophical articulation of the notion of the face helps to show the ethical implications of the appearance of the human face in cinema in general, and in Warhol’s Screen Tests in particular. (shrink)

Volume 25, Issue 5, October 2020, Page 171-174.

Previously unpublished fragments of Merleau-Ponty’s insights about cinema have added an important layer to our understanding of the medium. In this paper I examine these fragments along with some of Merleau-Ponty’s other observations about cinema, in the context of his work on perception and temporality. My aim is to show how his thought is relevant for understanding an important topic in film theory: cinematic point of view. With Merleau-Ponty’s phenomenological articulation of what it is to see, the possibility opens up (...) of conceptualizing the structure of cinematic point of view as a “whole” that is concomitantly dynamic and always plural. (shrink)

This article examines the implications of mandatory conscription for women by studying the experience of women soldiers who serve as secretaries in the Israeli military. The author argues that the military service of the secretaries is shaped by three organizing principles: an employment principle of cheap labor, a matrimonial principle of the office wife, and a hierarchy principle that shapes the secretaries as status symbols. Employing the theory of gendered organizations, the author maintains that each one of these organizing principles (...) operates as a gendering and a power mechanism. The convergence of these three gender/power principles results in overgendering of these women and their military experience. This overgendering reflects gender discrimination and creates feelings of alienation and frustration. For them, military service is not an experience that articulates their citizenship or enhances feelings of national belonging but rather stands in opposition to the values and goals of the mandatory people's army by estranging them from the state and its major institution. (shrink)

I examine the question why in Proclus' view genetic processes provide demonstrative explanations, in light of the interpretation of Aristotle's theory of demonstration in late antiquity. I show that in this interpretation mathematics is not an explanatory science in the strict sense because its objects, being immaterial, do not admit causal explanation. Placing Proclus' account of demonstrative explanation in this context, I argue that this account is aimed at answering the question whether mathematical proofs provide causal explanation as opposed to (...) grounds. I show further that Proclus can answer this question in the affirmative due to his realist view of mathematical objects and the priority he ascribes to causal relations over logical relations. (shrink)

In this article I explain three puzzling features of Simplicius’ use of syllogistic reconstructions in his commentary on Aristotle’s Physics: (1) Why does he reconstruct Aristotle’s non-argumentative remarks? (2) Why does he identify the syllogistic figure of an argument but does not explicitly present its reconstruction? (3) Why in certain lemmata does he present several reconstructions of the same argument? Addressing these questions, I argue that these puzzling features are an expression of Simplicius’ assumption that formal reasoning underlies Aristotle’s prose, (...) hence they reflect his attempt to capture as faithfully as possible Aristotle’s actual mode of reasoning. I show further that, as a consequence of this seemingly descriptive use of syllogistic reconstructions, logic serves Simplicius not only as an expository and clarificatory tool of certain interpretations or philosophical views, but also motivates and shapes his exegetical stances and approach. (shrink)

‘I know the future is scary at times, sweetheart. But there’s just no escaping it’. Ernest Cline, Armada As I sit here on Planet Zoom during the global COVID-19 pandemic and try to figure out how t...

This paper examines the widely accepted contention that geometrical constructions serve in Greek mathematics as proofs of the existence of the constructed figures. In particular, I consider the following two questions: first, whether the evidence taken from Aristotle's philosophy does support the modern existential interpretation of geometrical constructions; and second, whether Euclid's Elements presupposes Aristotle's concept of being. With regard to the first question, I argue that Aristotle's ontology cannot serve as evidence to support the existential interpretation, since Aristotle's ontological (...) discussions address the question of the relation between the whole and its parts, while the modern discussions of mathematical existence consider the question of the validity of a concept. In considering the second question, I analyze two syllogistic reformulations of Euclidean proofs. This analysis leads to two conclusions: first, it discloses the discrepancy between Aristotle's view of mathematical objects and Euclid's practice, whereby it will cast doubt on the historical and theoretical adequacy of the existential interpretation. Second, it sets the conceptual background for an alternative interpretation of geometrical constructions. I argue, on the basis of this analysis that geometrical constructions do not serve in the Elements as a means of ascertaining the existence of geometrical objects, but rather as a means of exhibiting spatial relations between geometrical figures. (shrink)

The aim of this study was to explore the coping resources of hope and sense of coherence, which are rooted in positive-psychology theory, as potential resilience factors that might reduce the emotional distress experienced by adults from three cultural groups in Israel during the chronic-stress situation of a pandemic. The three cultural groups examined were secular Jews, Ultra-Orthodox Jews, and Arabs. We compared these cultural groups during the second wave of the Covid-19 pandemic, just before the Jewish New Year (mid-September (...) 2020) as a second lockdown was announced. Data were gathered from 248 secular Jews, 243 Ultra-Orthodox Jews, and 203 Arabs, who were 18–70 years old (M= 37.14,SD= 12.62). The participants filled out self-reported questionnaires including the Brief Symptom Inventory as a measure of emotional/psychological distress (i.e., somatization, depression, and anxiety) and questionnaires about sense of coherence and different types of hope (i.e., intrapersonal, interpersonal, and transpersonal) as measures of coping resources and resiliency. Differences were found between the three groups in terms of several variables. The Arab participants reported the highest levels of emotional distress and the lowest levels of interpersonal and transpersonal hope; whereas the Ultra-Orthodox participants revealed the highest levels of sense of coherence and other resilience factors. A structural equation model revealed that, in addition to the sociodemographic factors, only sense of coherence and intrapersonal hope played significant roles in explaining emotional distress, explaining 60% of the reported distress among secular Jews, 41% among Ultra-Orthodox Jews, and 48% among Arabs. We discuss our findings in light of the salutogenic and hope theories. We will also discuss their relevancy to meaning-seeking and self-transcendence theory in the three cultural groups. (shrink)

I examine Alexander of Aphrodisias’ theory of action, addressing the question how his view that human actions are determined by reason accounts for the capacity of doing otherwise. Calling into question the standard view that Alexander frees agents from internal determination, I argue that (1) the capacity of doing otherwise is a consequence of determination by reason, since it enables agents to do something different from what they would have done had they followed external circumstances; and (2) this capacity is (...) compatible with causal determination by reason because as a case of potentiality for opposites, it grants agents the qualified possibility of doing otherwise insofar as their nature as human beings is concerned – a possibility which remains also when their actions are causally determined by reason and by their internal disposition. I show further that these elements of Alexander’s theory of action are ultimately based on his conception of the soul, specifically on his commitment to Aristotle’s view that the human soul is not purely rational, as the Stoics hold, but has nonrational and rational parts. (shrink)

I argue that Aristotle’s late-antique commentators read into his theory of demonstration the notion of tekmeriodic proofs in attempt to integrate into the theory of demonstration the assumption that the principles of demonstration should be evident. In so doing, I trace the late antique commentators’ view to Alexander of Aphrodisias’ discussion of the principles of demonstration, showing how his assumption that the principles of demonstration should be evident underlies their notions of tekmeriodic proofs.

Innovative teaching is sometimes perceived as opposite of traditional teaching, since it is regarded as student-centred and takes on the form of guided construction. This distinguishing feature led to an expectation that traditional teaching practices will be replaced with innovative ones for the purpose of fostering learning. The goal of the present research is to examine this issue by taking a closer look at teaching practices within an innovative learning environment, and their implications for teachers and teacher educators. Our qualitative (...) research was conducted in a secondary school which has implemented such a learning environment. The data analysis is based on sociolinguistic discourse analysis. The findings reveal a variety of teaching practices, which allows teachers to choose the most suitable one for a particular learning requirement. We conclude in proposing to adopt a more complex approach to teaching, and to relinquish the dichotomy between traditional and innovative teaching practi... (shrink)

The authors suggest that social movements research should recognize more the potential of the protesting body as an agent of social and political change. This contention is based on studying the relations among the body, gender, and knowledge in social protest by comparing two Israeli-Jewish leftist protest movements, a woman-only movement and a mixed-gender one, which protested against the Israeli Occupation in the early 1990s. The comparison reveals reversed patterns of body/knowledge relations, each connoting a different meaning and outcome of (...) the social protest. In the mixed movement, the body served as an instrument in carrying out the political knowledge and thus was left unmarked. In Women in Black, on the other hand, the body was the message, as it produced and articulated political ideology, simultaneously challenging the national security legacy and the gender order in Israel. (shrink)

Medicine has undergone substantial changes in the way medical dilemmas are being dealt with. Here we explore the attitude of Israeli physicians to two debatable dilemmas: disclosing the full truth to patients...

We mourn the loss of Yehuda Elkana, founding editor of this journal. Setting science in context was a mission of his life. For him this did not mean to relativize and historicize science to the point where it is no longer distinguishable as central to the human quest for knowledge. Rather, an understanding of science as being rooted in social, material, and cultural contexts was for him the key to its central role for solving the problems of humanity with which (...) he was so deeply concerned. (shrink)

Resisting Contextual Information: You Can't Put a Salient Meaning Down Two experiments support the graded salience hypothesis, which assumes that early processing involves distinct mechanisms-linguistic and contextual-that do not interact but run parallel. While contextual processes make up an integrative, top-down mechanism that benefits from linguistic and extra-linguistic information, the linguistic mechanism is modular. Using Vu et al.'s materials, Experiment 1 shows that the sentential position of a target word is crucial for the operation of the global, predictive mechanism, whose (...) effects, accumulated in prior discourse, mask lexical effects in final, but not in initial position. Experiment 2 shows that even in a sentential position that favors contextual effects, lexical access is not affected: Salient meanings are activated upon encounter of the lexical stimulus, regardless of contextual information to the contrary. Taken together, these findings argue against direct access models, which suggest that context can selectively activate the appropriate meaning, regardless of salience. (shrink)

This is a collective writing project that is part of the larger design of Infantologies, Infanticides and Infantilizations; a quartet that explores the philosophy of infants from thematic perspectives, that puts infants at the centre of our reflections, and that encourages a different academic style of thinking.

This paper analyzes how military service can be a source of women’s antiwar voices, using the Israeli case of “Women Breaking the Silence”. WBS is a collection of testimonies from Israeli women ex-soldiers who have served in the Occupied Palestinian Territories. The WBS testimonies change the nature of women’s antiwar protest by offering a new, paradoxical source of symbolic legitimacy for women’s antiwar discourse from the gendered marginalized position of “outsiders within” the military. From this contradictory standpoint, the women soldiers (...) offer a critical gendered voice, which focuses on criticism of the combat masculinity and gendered identification with the Palestinian “other.” While they reaffirm the republican ethos that grants political dominance to male soldiers, they also deconstruct the image of hegemonic masculinity as the emblem of the nation and undermine gendered militarized norms. (shrink)

After more than a decade Alexandre Métraux is leaving his post as a co-editor of Science in Context and will remain as a member of the editorial board.

Bu kitap değerlendirmesinde, Orna Donath’ın annelikten pişman olma durumunu nasıl ele aldığına değinilecek, kitabın güçlü ve zayıf yönleri üzerinde durulacaktır.