Perforation or gap formation in a vegetation is a major process in landscape transformation. The occurrence of gaps profoundly alters the microclimatical conditions in a vegetation. A method is proposed to quantify perforation by using the three main 2-D characteristics of the gaps: area, number and boundary length. New measures are developed by normalizing the observed values to the reference status of minimum and maximum perforation. As minimum perforation status, the presence of one single gap with area equal to the (...) map resolution is assumed. The new measures are combined using a 3-D Euclidean distance to visualize the process and to detect changes. The method is exemplified using a field case of gaps in a tropical terra firme rainforest at Tiputini, Ecuador. (shrink)

Background: Family sense of coherence can be defined as the cognitive map of a family that enables the family to deal with stress during their lifetime. FSOC is the degree to which a family perceives family life as comprehensible, manageable, and meaningful. To the best of our knowledge, few studies have used this scale, and very few have evaluated FSOC Scale psychometric properties.Objective: This study aimed to evaluate the psychometric properties of the original FSOC Scale in a sample of Portuguese (...) caregivers of children aged between 10 and 15 years.Methods: A total of 329 caregivers completed a sociodemographic questionnaire and the FSOC Scale. Analyses were performed to evaluate the factor structure of the FSOC Scale with 26 items as well as composite reliability, internal consistency, convergent-related validity, and discriminant-related validity of the scale scores.Results: The findings supported a three-factor solution for a 13-item version that maintains the original FSOC Scale structure. The three FSOC dimensions presented a good fit to the data. Cronbach’s alpha, composite reliability, and convergent-related validity were considered very good for the FSOC Scale. No evidence of discriminant-related validity was found for the dimensions of FSOC.Conclusion: The findings support the use of the Portuguese FSOC Scale for research and clinical purposes with Portuguese caregivers. Future research is necessary to further develop a European Portuguese version of the FSOC Scale.Implications: This study provides a psychometric evaluation of FSOC Scale characteristics in a Portuguese sample. The results are helpful for clinicians and family therapists who work with families since it could help them to assess the resources of families and their ability to cope with adversity and enhance their strengths. (shrink)

Objectives To describe the distress experienced by Spanish podiatrists related to ethical dilemmas, organisational matters, and lack of resources. Design A 2008 email survey of a representative sample of 485 Spanish podiatrists presenting statements about different ethical dilemmas, values and goals at the workplace. Results The response rate was 44.8%. Of all the respondents, 57% described sometimes having to act against their own conscience as distressing. Time constraints is the main cause of moral distress (67%) and 58% of respondents said (...) that they found it distressing that patients have long waits for treatment. Distress related to inadequate treatment due to economical constraints or ineffectiveness was described by 60% of the podiatrists. Another 51% reported that time spent on administration and documentation is distressing. Female doctors experienced more distress than their male colleagues. Last, 36% of respondents reported that their workplace lacked strategies for dealing with ethical dilemmas. Conclusion These study results identify moral distress among Spanish podiatrists mainly related to time constraints, patient demands and lack of resources. Moral distress varies with sex and age. Organisational strategies such as moral deliberation and responsive evaluation offer the potential to address moral distress. (shrink)

The expansion of livestock production throughout the world has led to increased demand for high protein animal feed. This expansion has created economic benefits for livestock farmers and other actors in the chain, but also resulted in environmental and social side effects. This study aims to identify a set of sustainability issues that cover the environmental, economic and social dimensions of soymeal and beef production chains. The method applied combines the results of multiple studies, including a literature review and stakeholder (...) surveys. Stakeholder surveys were conducted for three different interest groups and two geographical regions . Our results reveal that the selection of issues in most sustainability assessment studies is a relatively arbitrary decision, while the literature also states that identifying issues is an important step in a sustainability assessment. Defining sustainability issues from a whole chain perspective is important, as issues of sustainability emerge at various stages along the production chain, and are found to vary across stakeholders’ interests. Business stakeholders, for example, perceived economic issues to be more important, whereas the majority of consumer stakeholders and other stakeholders perceived social and environmental issues, respectively, to be more important. Different education levels, knowledge, and living patterns in various geographical regions can affect the stakeholders’ perceptions. The combination of a heterogeneous group of stakeholders and the consideration of multiple chain stages constitutes a useful approach to identify sustainability issues along food chains. (shrink)

Online education has become an essential component of education. Thus, several factors, such as the student’s learning strategy and motivation, generally contribute to their academic success. This study investigates the relationship between learning strategies, motivation, and online learning environment among 150 first-year college students. Employing correlational design, the statistical findings of the study reveal that the r coefficient of 0.59 indicates a moderate positive correlation between the variables. The p-value of 0.00, which is less than 0.05, leads to the decision (...) to reject the null hypothesis. Hence, a significant relationship exists between learning strategies, motivation, and the online learning environment. (shrink)

Soto Calderón, Andrea (2022)Imaginación materialSantiago de Chile: Metales Pesados, 149 p.ISBN 978-9566048923.

New equations of motion for a Bloch electron [momentum p=h k,energy ε n(p),zone number n, charge -e]: $$m_j \frac{{dv_j }}{{dt}} = - e(E + v \times B)_j $$ are proposed, where v≡∂εn(p)/∂p is the velocity, and {mj}are the principal masses m j − 1=∂2εn/∂p j 2 along the normal and the two principal axes of curvatures at each point of the constant-energy surface represented by ε=εn(p).Their advantages over the prevalent equations of motion where the left-hand-side is replaced by hk j (...) are demonstrated by examining de Haas-van Alphen oscillations and orientation-dependent cyclotron resonance peaks. (shrink)

We analyze the correspondence between a five-dimensional U(1)gauge invariant theory and four-dimensional scalar QED, where the fifth dimension (τ)is an invariant parameter of evolution of the manifestly covariant one-particle sector as well as for the full Fock space. The correspondence is represented by the limit in which the width of the photon mass distribution Δs tends to zero and large τ correlations occur. In the limiting procedure, calculation of a twopoint diagram shows that the PauliVillars regularization is intrinsically related to (...) these longrange correlations. (shrink)

This article offers a behavioral analysis of national conflict, in which the socio-psychological mechanisms of the adversary groups escalate ideological passions to the point of violence.

El libro La indianización. Cautivos, renegados, “hommes libres” y misioneros en los confines americanos (S. XVI-XIX) es una cuidada publicación en español y francés en la que contribuyen, además de sus coordinadores, una docena de investigadores de diversas universidades y centros de investigación europeos y americanos. El germen de esta obra colectiva fue el coloquio internacional organizado por Giudicelli, Bernabéu y Havard en la Escuela de Estudios Hispano-Americanos (EEHA) de Sevilla en s...

Al llibre ¿Què ens fa humans? (2022), Salvador Macip explora la pregunta del títol a través d’un diàleg fructífer entre la ciència i la filosofia. Ara bé, Macip diu que no està interessat en tota la filosofia, sinó només en «la part de la filosofia que ha aplicat el mètode científic » (p. 159). A quina part de la filosofia fa referència exactament? Repassarem les idees principals del llibre de Macip fent especial esment dels filòsofs que es mencionen. Així, (...) podrem tenir una idea més precisa de quina mena de filosofia és la que interessa a Macip. També revisarem breument les referències artístiques incloses al llibre de Macip, ja que el mateix autor afirma que «ciència i art no s’haurien de veure com dues entitats separades (i gairebé antagòniques) […], sinó com components del mateix concepte, el de la cultura humana» (p. 35). (shrink)

En el siglo XIX, médicos europeos desarrollaron estudios científicos sobre técnica vocal y su aplicación artística. Profesionales y aficionados al canto deseaban conocer estos nuevos recursos y descubrimientos sobre la fonación, la respiración y las últimas tendencias interpretativas. El objetivo de esta investigación es documentar a través de una metodología descriptiva las principales innovaciones en la técnica vocal que se presentaron en cinco tratodos españoles de canto publicados en la segunda mitad del siglo XIX. La incorporación de estos avances influyeron (...) de forma directa en la enseñanza del canto. (shrink)

This article presents an archaeological analysis of some of the discourses and practices that played a decisive role in the effectuation of the Conquest of America and the establishment of a political order based on a racial prejudice and domination. A political order that was, in consequence, extremely exclusionary and violent. This research is based on the concepts of biopolitics and anthropological machine created by Giorgio Agamben, as well as on the relationship that exists between them and the communities founded (...) on identitarian principles; the researches of post-colonial philosophers; and Carl Schmit’s writings on International Law. The analysis of the Aristotelian-Thomistic conception of the human being, the geographical division of the World created from Europe, and the political treaties concluded between the emerging European States during fifteenth and sixteenth centuries, allows me to propose the Conquest of America as a paradigmatic case of this form of power that has characterized Western politics: biopolitics. (shrink)

This article develops a theory of border subjectivity that considers the cybernetic role of narrative structures and mediation in political advocacy aimed at dreamers and DACA recipients. "Cybersujetos” are border subjects who are racialized by cybernetic systems and media narratives, but can resist control by repurposing cultural technologies. In assessing the limitations of journalism, literature, and film as outlets for political advocacy, this article finds that remediated representations of undocumented youth that attempt to expand their political agency can further alienate (...) them. Outdated stereotypes in representation are substituted with a proliferation of diverse but still racialized figures meant to demarcate "exceptional" candidates for naturalization, thus failing to challenge the normative parameters of citizenship itself and the militarized position of the US on the global stage. (shrink)

La libertad en Descartes tiene dos momentos diferentes: antes de que se descubra la posibilidad de la verdad y después de su descubrimiento. La experiencia de la libertad previa al establecimiento de las condiciones de la verdad tiene lugar en la decisión de reconstruir el edificio del conocimiento. El descubrimiento de su fundamento teológico tiene como consecuencia la moralización del saber.

Es indudable el hecho que el mundo está viviendo una crisis sanitaria (pandemia) de magnitudes catastróficas, en la cual todas las medidas de contención, parecen no ser graves, pues el número de bajas por los efectos devastadores de este virus, conocido como Coronavirus (COVID-19 para la comunidad científica), no para crecer, abandonando a la humanidad en la desesperanza, dolor, luto y pérdida, es por eso, que considero que todos los seres humanos de la forma de pensar que sea, ideología política, (...) tendencia de pensamiento, religión, creencias, área de experticia, etc., competimos con nuestro informe y sentar una opinión en torno a un tema que es de vida o muerte para la humanidad en estos momentos y los filósofos, pesar que muchas veces se muestran como seres alejados del mundo en el ensueño de las elucubraciones y “fantasías” maniqueas, no están exentos del problema y le afectan de la misma forma que cualquiera, pues vive en este mundo y está o no, sumergido en el mismo, debe por ello “llenarse” del presente y la realidad actual y efectiva de los problemas que afectan al mundo aquí y ahora. (shrink)

RESUMEN Las principales ideas del pensamiento de Han se construyen frente a conceptos de la filosofía de Foucault: la psicopolítica como superación de la biopolítica, la transparencia como un panóptico no perspectivista y el cuidado de sí como la técnica de dominación más eficaz, propia de individuos que se someten voluntariamente creyendo que son libres. En este trabajo evalúo dicha lectura subrayando las imprecisiones sobre las que se asienta su lectura de Foucault: no comprende el carácter incitador de la biopolítica (...) y olvida la importancia de la perspectiva en el panóptico y la imposibilidad de escapar de las relaciones de poder. ABSTRACT The main ideas of Han's thought are built against concepts of Foucault's philosophy: psychopolitics as overcoming biopolitics, transparency as a non-perspectivist panopticon and self-care as the most effective technique for dominating individuals who submit voluntarily while believing that they are free. In this paper I evaluate this reading, underlining the imprecisions on which his reading of Foucault is based: he does not understand the inciting character of biopolitics and forgets the importance of perspective in the panopticon and the impossibility of escaping from power relations. (shrink)

A pesar de que en los trabajos de Foucault no encontramos una problematización de los Ensayos de Montaigne, a partir de las escasas menciones que hace a su pensamiento es posible reconstruir su lectura. Si Descartes es el autor que mediante un gesto violento expulsa la locura de lo razonable y clausura la tradición del ejercicio de sí reactivada en el Renacimiento, en Montaigne el ensayo surge como una técnica de continua transformación de sí ejercida por un sujeto que, ante (...) la impotencia de la evidencia para acceder a la verdad, solo puede someterse a prueba. La relación que se establece entre ambos autores en el marco de la filosofía foucaultiana nos permite entrever cómo se relaciona el eje de la subjetividad con los del poder y el saber, así como subrayar la importancia de un estudio filosófico de los Ensayos para comprender la genealogía de la ontología del presente. (shrink)