This article presents a systematic review carried out around the development of technologies that have driven military communication, describing the evolution of communication equipment and protocols used throughout history. This work was carried out from the review of 80 articles related to the field of militarycommunications, from which the fundamentals of the different technologies, equipment and means of communication were extracted. It is concluded that technological progress has improved the speed of response in digital signals, has proposed.

El autor nos introduce en la experiencia del silencio, que postula fue en el comienzo de los tiempos el estado natural de los seres, y afirma que en el contexto de la vida occidental actual el hombre y la mujer han perdido contacto con su ser interior. Que el ruido de la sociedad moderna y artificial nos ha arrebatado el silencio indispensable para el desarrollo integral de los seres humanos.

British historians drew on anthropological exemplars to remake social history between 1959 and 1977. Eric Hobsbawm's ‘primitive rebels’, Peter Laslett's World We Have Lost, Keith Thomas’s studies of witchcraft, and E. P. Thompson's ‘moral economy’ were all inspired by contemporary social anthropology, and they transformed historians’ understanding of the past. Reconstructing this moment of cross-disciplinary research contributes to our understanding of broader changes in the mid-century human sciences. This was a moment of grand theorizing about ‘modernization’, capitalism, and industrialization. Social (...) historians responded to these concerns by drawing analogies between the past and the ethnographic present. The result was a number of hugely influential studies of social change that posed new questions to those seeking to create abstract models of modernization out of the English past. (shrink)

This ar ti cle ad dresses the dis cus sion of the relationship between political philosophy and po - litical science. Concepts are articulated throiugh poltical thought that of fer vi sion and a re la tion ship of pol i tics from a sci en tific per spec tive. When ap - proaching political scien..

One important limitation of the current renditions of interpretivism is that its emphasis on the moral dimension of sport has overlooked the aesthetic dimension lying at the core of this account of sport. The interpretivist’s failure to acknowledge and consider the aesthetic implicitly distances this realm from the moral. Marcia Muelder Eaton calls this distancing the separatist mistake. This paper argues that interpretivism presupposes not only moral but also aesthetic principles and values. What it sets out to demonstrate is that (...) interpretivism is an integralist, or nonseparatist, account of sport, one in which ethical and aesthetic values are not exclusive. Making explicit and specifying interpretivism’s combined moral-aesthetic approach to sport not only helps to better distinguish the whole range of values that make up sport as well as their interconnection but also encourages sportspeople to pursue more coherent sport and, thus, more enriching lives. (shrink)

De se attitudes seem to play a special role in action and cognition. This raises a challenge to the traditional way in which mental attitudes have been understood. In this chapter, we review the case for thinking that de se attitudes require special theoretical treatment and discuss various ways in which the traditional theory can be modified to accommodate de se attitudes.

A commonly held idea regarding the nature of time is that the future is open and the past is fixed or closed. This article investigates the notion that there is an asymmetry in openness between the past and the future. The following questions are considered: How exactly is this asymmetry in openness to be understood? What is the relation between an open future and various ontological views about the future? Is an open future a branching future? What is the relation (...) between an open future and the question of whether contingent statements about the future are true or false? Is an open future compatible with a single determinate future? (shrink)

Self-Efficacy in Action provides a practitioner-friendly overview of the concepts, vocabulary, practices, and contexts related to teacher self-efficacy. This book engages readers in the meaningful discussions of practices and purposes of teacher self-efficacy to advance professionalism.

Este artículo demuestra los resultados de la aplicación de La Filosofía para Niños (FpN) como propuesta didáctica para el fortalecimiento de actitudes críticas y reflexivas sobre el tema de la identidad cultural de manera dialógica en un contexto escolar de Educación General Básica Superior en Cuenca (Ecuador). Para el análisis se utilizó la metodología hermenéutica, a través de la interpretación de las transcripciones de las tres sesiones aplicadas con base a historias creadas con preguntas que generaban discusiones y a través (...) de las cuales se logró fortalecer las actitudes críticas y reflexivas de los estudiantes. (shrink)

In this paper I consider two strategies for providing tenseless truth-conditions for tensed sentences: the token-reflexive theory and the date theory. Both theories have faced a number of objections by prominent A-theorists such as Quentin Smith and William Lane Craig. Traditionally, these two theories have been viewed as rival methods for providing truth-conditions for tensed sentences. I argue that the debate over whether the token-reflexive theory or the date theory is true has arisen from a failure to distinguish between conditions (...) for the truth of tensed tokens and conditions for the truth of propositions expressed by tensed tokens. I demonstrate that there is a true formulation of the token-reflexive theory that provides necessary and sufficient conditions for the truth of tensed tokens, and there is a true formulation of the date theory that provides necessary and sufficient conditions for the truth of propositions expressed by tensed tokens. I argue that once the views are properly formulated, the A-theorist’s objections fail to make their mark. However, I conclude by claiming that even though there is a true formulation of the token-reflexive theory and a true formulation of the date theory, the New B-theory nonetheless fails to provide a complete account of the truth and falsity of tensed sentences. (shrink)

There is currently disagreement about whether the phenomenon of first-person, or de se, thought motivates a move towards special kinds of contents. Some take the conclusion that traditional propositions are unable to serve as the content of de se belief to be old news, successfully argued for in a number of influential works several decades ago.1 Recently, some philosophers have challenged the view that there exist uniquely de se contents, claiming that most of the philosophical community has been under the (...) grip of an attractive but unmotivated myth.2 At the very least, this latter group has brought into question the arguments in favor of positing special kinds of content for de se belief; I think they have successfully shown that these arguments are not as conclusive, or fully articulated, as many have taken them to be. In this paper I will address these challenges directly and I will present and defend an argument for the conclusion that the phenomenon of de se thought does indeed motivate the move to a special kind of content, content that is uniquely de se. First, I characterize a notion of de se belief that is neutral with respect to friends and foes of uniquely de se content. I then argue for a determination thesis relating de se belief to belief content: that there is no difference in de se belief without a difference in belief content. I argue that various proposals for rejecting this determination thesis are unsuccessful. In the last part of the paper, I employ this determination thesis to argue for the existence of a type of belief content that is uniquely de se. (shrink)

I consider whether the self-ascription theory can succeed in providing a tenseless (B-theoretic) account of tensed belief and timely action. I evaluate an argument given by William Lane Craig for the conclusion that the self-ascription account of tensed belief entails a tensed theory (A-theory) of time. I claim that how one formulates the selfascription account of tensed belief depends upon whether one takes the subject of selfascription to be a momentary person-stage or an enduring person. I provide two different formulations (...) of the self-ascription account of tensed belief, one that is compatible with a perdurantist account of persons and the other that is compatible with an endurantist account of persons. I argue that a self-ascription account of tensed beliefs for enduring subjects most plausibly involves the self-ascription of relations rather than properties. I argue that whether one takes the subject of self-ascription to be a momentary personstage or an enduring person, the self-ascription theory provides a plausible B-theoretic account of how tensed belief and timely action are possible. (shrink)

Many of the social deprivations of Mexico will be worsened due to the SARSCOV2 pandemic. Namely, the insufficient access to public health, lack of labor rights, and the unsuccessful government’s response to eradicate male violence against women. The historical unconcern in promoting a culture rooted in mutual aid and self-care has provoked many citizens are disconnected from their social and health rights. Thus, people’s inability to carry through one direction –stay home- is unfulfilled, in part, due to structural inequalities. I (...) affirm that effective liberty could be obtained by approving a Universal Basic Income from a feminist perspective. I conclude that the aftermath of COVID-19, which will define everyday life for a while, require the endorsement of such measure. Likewise, women as a class deserve protection from a feminist critical framework. (shrink)

When do objects at different times compose a further object? This is the question of diachronic composition. The universalist answers, ‘under any conditions whatsoever’. Others argue for restrictions on diachronic composition: composition occurs only when certain conditions are met. Recently, some philosophers have argued that restrictions on diachronic compositions are motivated by our best physical theories. In Persistence and Spacetime and elsewhere, Yuri Balashov argues that diachronic compositions are restricted in terms of causal connections between object stages. In a recent (...) article, Nikk Effingham argues that the standard objections to views that endorse restrictions on composition do not apply to a view that restricts composition according to compliance with the laws of nature. On the face of it, such restrictions on diachronic composition preserve our common-sense ontology while eliminating from it scientifically revisionary objects that travel faster than the speed of light. I argue that these attempts to restrict diachronic composition by appealing to either causal or nomological constraints face insurmountable difficulties within the context of special relativity. I discuss how the universalist should best respond to Hudson’s argument for superluminal objects, and in doing so, I present and defend a new sufficient condition for motion that does not entail that such objects are in superluminal motion. 1 Introduction2 Diachronic Composition3 Diachronic Composition and Superluminal Objects4 Restricting Diachronic Composition5 Causal and Nomological Restrictions on Composition in a Relativistic Context6 Superluminal Objects and Motion7 Conclusion. (shrink)

In this paper I examine an argument that has been made by Patrick Grim for the claim that de se knowledge is incompatible with the existence of an omniscient being. I claim that the success of the argument depends upon whether it is possible for someone else to know what I know in knowing (F), where (F) is a claim involving de se knowledge. I discuss one reply to this argument, proposed by Edward Wierenga, that appeals to first-person propositions and (...) argue that this response is unsuccessful. I then consider David Lewis’s theory of de se attitudes involving the self-ascription of properties. I claim that, according to this theory, there are two senses in which someone else can know what I know in knowing (F). I then argue that the second sense allows for the compatibility of de se knowledge with the existence of an omniscient being. (shrink)

In this chapter I will present, in a general way, Millikan's biosemantic theory of the phenomenon of intentionality. For this purpose, the text will take the following path. First, I will present the problem of intentionality and an overview of the dominant theories of intentional content during the twentieth century and part of the twenty-first century. Then, I will present a general version of Millikan's biosemantic theory, appearing in 1984, which will allow us to see what the relevance and originality (...) of his proposal consists in. Finally, in keeping with one of the central purposes of Las filósofas que nos formaron, I will share a brief interview that Millikan very kindly agreed to give for this publication, in which she tells us some non-theoretical aspects of her history as a philosopher. (shrink)

Sound symbolism refers to non-arbitrary associations between word forms and meaning, such as those observed for some properties of sounds and size or shape. Recent evidence suggests that these connections extend to emotional concepts. Here we investigated two types of non-arbitrary relationships. Study 1 examined whether iconicity scores (i.e. resemblance-based mapping between aspects of a word’s form and its meaning) for words can be predicted from ratings in the affective dimensions of valence and arousal and/or the discrete emotions of happiness, (...) anger, fear, disgust and sadness. Words denoting negative concepts were more likely to have more iconic word forms. Study 2 explored whether statistical regularities in single phonemes (i.e. systematicity) predicted ratings in affective dimensions and/or discrete emotions. Voiceless (/p/, /t/) and voiced plosives (/b/, /d/, /g/) were related to high arousing words, whereas high arousing negative words tended to include fricatives (/s/, /z/). Hissing consonants were also more likely to occur in words denoting all negative discrete emotions. Additionally, words conveying certain discrete emotions included specific phonemes. Overall, our data suggest that emotional features might explain variations in iconicity and provide new insight about phonemic patterns showing sound symbolic associations with the affective properties of words. (shrink)

Objectives: The objective of this study is to estimate the proportion of different types of end‐of‐life decisions (ELDs) of physicians in the city of Hasselt (Flanders, Belgium). The question is addressed to what degree these ELD meet legal constraints and the ethical requirements for prudent practice. Methodology: All physicians of the city of Hasselt who signed at least one death certificate in 1996 (N=166) received an anonymous self‐administered mail questionnaire per death case (max. 5/doctor) Results: the response rate was 55% (...) (N=269). In 37.3% of all cases at least one ELD was made (16.5% non‐treatment decisions; 16% potential life‐shortening by intensifying the treatment of pain and symptoms; 4.8% administration, supply or prescription of lethal drugs). In 59.5% of the cases were an ELD was made that decision was legally questionable. Patient characteristics were clearly related to the type of ELD. There was no influence of physician characteristics, except for commitment to life‐stance. In 71.3% of the cases the ELD was in no way discussed with the patient. 8.1% of the ELD‐cases were in response to a direct request from the patient Conclusions: The incidences of ELDs in Hasselt are consistent with earlier findings. The study shows that religious commitment influences the behaviour of physicians at the end of their patients' life. The patient's and her family's entitlements to participation in the decision making process were rather poorly respected. (shrink)

El centro de atención de este ensayo es la construcción teórica de la categoría afectividad, la cual se concibe como un sistema formado por las emociones, los sentimientos y las pasiones, de los cuales también se despliegan reflexiones en torno a su elaboración teórica. Este estudio se despliega desde una perspectiva filosófica y con una mirada totalizadora. Forman parte del contenido algunas elaboraciones teóricas de autores imprescindibles para entender estas temáticas y polemizar en torno a ellas, entre los cuales están (...) Juan Luis Vives, Renato Descartes, David Hume (a quien se le brinda una atención más esmerada) y Adam Smith; no obstante, también forman parte del contenido criterios de algunos estudiosos contemporáneos, como el filósofo italiano Remo Bodei y el filósofo español José Antonio Marina. Al profundizar en las categorías referidas, se establecen relaciones con facultades humanas, como la imaginación, así como con los valores, la cultura y el mejoramiento humano. (shrink)

Objectives: The objective of this study is to estimate the proportion of different types of end‐of‐life decisions (ELDs) of physicians in the city of Hasselt (Flanders, Belgium). The question is addressed to what degree these ELD meet legal constraints and the ethical requirements for prudent practice.Methodology: All physicians of the city of Hasselt who signed at least one death certificate in 1996 (N=166) received an anonymous self‐administered mail questionnaire per death case (max. 5/doctor)Results: the response rate was 55% (N=269). In (...) 37.3% of all cases at least one ELD was made (16.5% non‐treatment decisions; 16% potential life‐shortening by intensifying the treatment of pain and symptoms; 4.8% administration, supply or prescription of lethal drugs). In 59.5% of the cases were an ELD was made that decision was legally questionable. Patient characteristics were clearly related to the type of ELD. There was no influence of physician characteristics, except for commitment to life‐stance. In 71.3% of the cases the ELD was in no way discussed with the patient. 8.1% of the ELD‐cases were in response to a direct request from the patientConclusions: The incidences of ELDs in Hasselt are consistent with earlier findings. The study shows that religious commitment influences the behaviour of physicians at the end of their patients' life. The patient's and her family's entitlements to participation in the decision making process were rather poorly respected. (shrink)

Este estudio teórico se despliega en dos ámbitos. Uno de ellos es el de las ideas de una figura cimera delpensamiento complejo, Edgar Morin, de quien se revela algunas de sus consideraciones en torno a la integración, las cuales están mayormente implícitas en sus meditaciones. El otro ámbito es la formación universitaria, a propósito de la cual se reflexiona acerca del pensamiento complejo y de la eliminación de características que atentan contra el carácter integrador de la misma. Los objetivos de (...) este trabajo son: argumentar el carácter integrador del pensamiento de Morin, y criticar las acciones que reducen el carácter integrador propio de la formación universitaria. La metodología empleada es la Documental, consistente en el estudio crítico de textos y el análisis de información escrita. Algunos de los resultados son: la revelación del carácter integrador de las ideas de Morin, la formulación de una definición de la categoría académica formación, y la crítica a la reducción del carácter integrador consustancial a la formación universitaria. Entre las conclusiones están: el carácter integrador del pensamiento de Morin tiene una base objetiva; el rasgo distintivo de la formación académica es que se realiza desde la conciencia del implicado y la atención a la afectividad en la formación universitaria fortalece su carácter integrador. (shrink)

In Philosophy, it is well known that of the total faculty population, the proportion of women is significantly lower than men. This disproportion is odd for a discipline within the humanities; these numbers seem more compatible with what is found in STEM (Science, Technology, Engineering, Mathematics) careers. These proportions are in turn a product of the low female presence that exists from the previous levels of academic training in philosophy. What happens in the case of the philosophy student body? For (...) example, the report presented by BeeBee and Saul (2011), on women in philosophy in the United Kingdom, in the period 2008 and 2009, points out that in the first degrees of academic training, in the bachelor's degree, women occupy 45% of the student population, in the master's degree 38% and in the doctorate 35%. Thus, "it is notable that there is a reduction in the proportion of women from the bachelor's degree to the doctorate [...]. This has as a consequence that at the professional level women holding positions as professors represent only 19%" (BeeBee & Saul, 2011, p. 11). Recently, Torres González (2018), based on European Union studies, points out that in Spain, with respect to gender disparity in students, "the data yield as a result masculinized studies, where, contrary to what happens in the branch of the humanities to which it [philosophy] belongs, males outnumber females by 28 percentage points" (2018, p. 328). This disparity is reflected in philosophy at the professional level, "the indicators of vertical segregation show a reinforced glass ceiling, which presents one of the worst data of hierarchical discrimination in the university: the percentage of female professors in philosophy is 12% compared to 21% of female professors in higher education" (Idem). Although it is a fact that there are fewer women than men studying philosophy and, therefore, fewer women than men working professionally in this discipline, we do not yet have possible explanations for this phenomenon of gender disparity in the student body in philosophy. In some cases, even if the number of women entering the philosophy degree program is already low, the number of women graduating is even lower, which indicates that there is attrition along the way; the initial numbers of women entering the program tend to decrease by the time they graduate. Thus we come to the question that is the subject of this paper: What causes female students to drop out of the philosophy program? In this article we answer this question from the philosophy of science and supported by local empirical data, so we do not give a complete or even less exhaustive answer. We review two explanatory models that purport to answer the question of why there are fewer women in philosophy, both formatively and professionally. These are the Different Voices Model (DVM) and the Perfect Storm Model (PSM); we opt for the latter and give reasons for it. Regarding the empirical aspect of our research, our source of statistical data belongs to the undergraduate program in philosophy at the Facultad de Estudios Superiores Acatlán-UNAM, Mexico (FES Acatlán), obtained in the framework of the SWIP-Analytic Mexico workshops. Our analysis of these data shows that even when female students have better GPAs than male students and take fewer subjects while enrolled, female students graduate less than male students in the FES Acatlan degree program. (shrink)

Is it ethical or not to enhance the characteristics and capacities of human beings, making use of technological incorporations in their biology? This article presents arguments from both position pros and cons, about technological incorporations in human bodies. The denaturalization of technologically enhanced humans is discussed; A discussion is raised about the impact of these technologies on the population inequality; We present a contrast between whether the research is for treatment or enhancement purposes. Some of the repercussions on a society (...) of humans are analyzed, both hyper connected and technologically enhanced. Some of the future challenges that societies with technologically enhanced humans must face are presented. In conclusion, the development of technologies, within a regulatory and normative framework, to enhancing the characteristics and capacities of human beings is ethical. Because technologically enhanced humans are part of the NBIC convergence, and the NBIC convergence will generate new knowledge that will surely be used to develop clean and safe energy sources, preventive medical treatments that will eliminate diseases such as cancer and HIV, and design strategies to the conservation and decontamination of the planet. (shrink)

Mindfulness training is often promoted as a method to train cognitive functions and has shown such effects in previous studies. However, many conventional mindfulness exercises for beginners require cognitive effort, which may be prohibitive for some, particularly for people who have more pronounced cognitive problems to begin with. An alternative mindfulness-based approach, called restoration skills training, draws on a restorative natural practice setting to help regulate attention effortlessly and promote meditative states during exercises. Previous research has shown that a 5-week (...) ReST course requires less effort and is attended by higher compliance with practice recommendations than a conventional mindfulness course, without compromising long-term outcomes. Here, we compare ReST and a formally matched conventional mindfulness course regarding the role that initial individual differences in cognitive functioning play in determining practice compliance and long-term improvements in dispositional mindfulness and cognitive functioning. In line with expectations, ReST participants who had more pronounced cognitive problems to begin with practiced more during the course, which in turn explained much of their improvement in dispositional mindfulness and cognitive functioning. In contrast, initial cognitive functioning did not explain practice and improvement in the conventional mindfulness course. The results provide further support for the potential utility of ReST as a low-effort method for enhancing cognitive functioning among people who would struggle with the demands of conventional mindfulness training. With careful integration of mindfulness practices with a restorative natural setting, these people can develop mindfulness and self-regulation capabilities without relying on effortful training. (shrink)

Restoration skills training is a mindfulness-based course in which participants draw support from a natural practice setting while they learn to meditate. Well-established conventional mindfulness training can improve psychological functioning but many perceive it as demanding and fail to sustain practice habits. Applying non-inferiority logic, previous research indicated that ReST overcomes compliance problems without compromising the benefits gained over 5 weeks’ training. This article applies similar logic in a 6-month follow-up. Of 97 contacted ReST and CMT course completers, 68 responded (...) and 29 were included with multiple imputation data. The online survey included questions about their psychological functioning in three domains and the forms and frequencies with which they had continued to practice mindfulness after the course. Former ReST participants continued, on average, to show higher dispositional mindfulness and fewer cognitive lapses compared to pre-course ratings. Improved psychological functioning in one or more domains was demonstrated by 35%, as determined by a reliable change index. Again, analyses detected no indications of any substantive disadvantages compared to the more demanding, established CMT approach. Compared to the CMT group, more ReST participants had also continued to practice at least occasionally. Continued practice was linked to sustained improvements for ReST but not clearly so for CMT. ReST participants thus continued to use the skills and sustained the improvements in psychological functioning that they had gained in the course, further supporting the utility of ReST as a health intervention. (shrink)

It is common in contemporary sport to liken the notion of the team to that of the family. That is, the family is used to evoke team life. Portraying the team as a family usually implies a positive evaluation. Despite its prevalence, the team as a family equation has not been analyzed in the sport philosophy literature. Thus, the purpose of this article is twofold. First, it explores whether the team is to be equated with the family. To discuss the (...) nature of the family and the team, I draw together the work of several sport philosophers with that of Laura Wildemann Kane. Second, and considering what characterizes the team, this article investigates whether teammates have special responsibilities to one another by virtue of their relationship and the value attached to it. I propose that the team as a family equation does not align with the constitution of these two social groups and that teammates have special responsibilities to one another, but such responsibilities are different from those observed in the family. (shrink)

The present work tackles the issue of the effects of digitalisation on employment. This issue has been attracting a growing interest, in particular because of the anxiety generated by the idea that digital technologies could cancel a large number of jobs. Although I agree with argument put forward in opposition to the existence of a causal link between technological innovation and increased productivity at the macroeconomic level, I believe that the novelty and pervasiveness of digital technologies require more in-depth micro-level (...) analysis in order to understand the extent to which new digital technologies are currently employed by leading manufacturing companies and the ways new technologies are affecting employment. The empirical findings show that among the different technologies included under the umbrella of Industry 4.0, mainly robots have received a great deal of attention so far, while the current application and employment impact for other emerging technological opportunities such as 3D printing, Internet of Things, Augmented reality, Big data Analytics have not been studied yet. In relation to the qualitative changes of the labour market, our empirical research confirms that there are new types of skills that will be demanded in the future in manufacturing, in particular in relation to service provision and software development. (shrink)

Este libro recoge una veintena de estudios que, desde el punto de vista de la teoría social abordan aspectos variados de la Globalización, el Riesgo y la Reflexividad, considerados como los retos fundamentales con los que ha de enfrentarse la sociología actual.

RESUMEN Este artículo reconstruye la genealogia arendtiana de las formas extremas de la violencia, tomando como hilo conductor los procesos de desingularización con un doble propósito: por un lado, analizar las (dis)continuidades históricas de dicha genealogia que trasciende la dimensión fisico-instrumental de la violencia y entra conexión con la (des)configuración de la identidad personal; por otro lado, reivindicar la vigencia de la obra de Hannah Arendt para explorar los ecos presentes de esa violencia, sin perder de vista su especificad actual. (...) ABSTRACT This paper reconstructs the Arendtian genealogy of the extreme forms of violence, taking desingularization processes as its guiding thread, with a twofold goal: on the one hand, to analyze the historical (dis)continuities of that genealogy, that goes beyond the physical-instrumental dimension of violence and comes into connection with the (de)configuration of personal identity; on the other hand, to claim the validity of Arendt's work to explore the echoes of that violence, without losing sight of its current specificity. (shrink)

Este libro recoge una veintena de estudios que, desde el punto de vista de la teoría social abordan aspectos variados de la Globalización, el Riesgo y la Reflexividad, considerados como los retos fundamentales con los que ha de enfrentarse la sociología actual.

Call ‘a substance’ a person who is at home in a relatively stable and unified sense-making framework: a social structure that to some degree specifies which categories are important for interpreting reality, which goals are worth pursing, which character traits are admirable, etc. Call ‘an accident’ a person who is not at home in one such framework. It is tempting to think that being a substance is preferable, but I present some considerations for thinking otherwise. Mexican philosophers Emilio Uranga and (...) Jorge Portilla, I argue, present notions of accidentality as decolonial tools. Uranga’s account enables Mexicans to have positive valuation of their being independently of the approving gaze of the colonizers and their standards of value. Portilla’s thought distinguishes between pernicious accidentality resulting from the disintegration of sense-making frameworks and authentic accidentality as a condition for freedom, self-creation, and ultimately for individual and communal liberation. (shrink)

The evolutionarily conserved Notch signaling pathway regulates a broad spectrum of cell fate decisions and differentiation processes during fetal and postnatal life. It is involved in embryonic organogenesis as well as in the maintenance of homeostasis of self‐renewing systems. In this article, we review the role of Notch signaling in the hematopoietic system with particular emphasis on lymphocyte development and highlight the similarities in Notch function between Drosophila and mammalian differentiation processes. Recent studies indicating that aberrant NOTCH signaling is frequently (...) linked to the induction of T leukemia in humans will also be discussed. BioEssays 27:1117–1128, 2005. © 2005 Wiley Periodicals, Inc. (shrink)