Late Pleistocene climate change and the global expansion of anatomically modern humans

The extent to which past climate change has dictated the pattern and timing of the out-of-Africa expansion by anatomically modern humans is currently unclear [Stewart JR, Stringer CB (2012) Science 335:1317–1321]. In particular, the incompleteness of the fossil record makes it difficult to quantify the effect of climate. Here, we take a different approach to this problem; rather than relying on the appearance of fossils or archaeological evidence to determine arrival times in different parts of the world, we use patterns of genetic variation in modern human populations to determine the plausibility of past demographic parameters. We develop a spatially explicit model of the expansion of anatomically modern humans and use climate reconstructions over the past 120 ky based on the Hadley Centre global climate model HadCM3 to quantify the possible effects of climate on human demography. The combinations of demographic parameters compatible with the current genetic makeup of worldwide populations indicate a clear effect of climate on past population densities. Our estimates of this effect, based on population genetics, capture the observed relationship between current climate and population density in modern hunter–gatherers worldwide, providing supporting evidence for the realism of our approach. Furthermore, although we did not use any archaeological and anthropological data to inform the model, the arrival times in different continents predicted by our model are also broadly consistent with the fossil and archaeological records. Our framework provides the most accurate spatiotemporal reconstruction of human demographic history available at present and will allow for a greater integration of genetic and archaeological evidence.

Change in the archive: Blanchot's 'L'Entretien infini'

Today we are faced with the problem of how to relate the archives of deconstructionist thinkers to their thought, which seems opposed to historically-oriented or genetic criticism. This article is the first to look comprehensively at the gestation of Maurice Blanchot's L'Entretien infini, including the work's page-proofs which were made available in 2009. I thus address the multiple processes of change at work throughout Blanchot's writing, with change being a process whose importance goes beyond any single new form of writing resulting from it. My presentation of the archival material is contextualized via a discussion of the notion of L'Absence de livre (the project's working title). Rather than being a straightfoward incompleteness or fragmentation, this notion establishes a fraught relationship between such ideas and what it calls ‘le Livre’.

Does stakeholder pressure influence corporate GHG emissions reporting? Empirical evidence from Europe

Purpose – The purpose of this paper is to seek to shed light on the practice of incomplete corporate disclosure of quantitative Greenhouse gas (GHG) emissions and investigates whether external stakeholder pressure influences the existence, and separately, the completeness of voluntary GHG emissions disclosures by 431 European companies. Design/methodology/approach – A classification of reporting completeness is developed with respect to the scope, type and reporting boundary of GHG emissions based on the guidelines of the GHG Protocol, Global Reporting Initiative and the Carbon Disclosure Project. Logistic regression analysis is applied to examine whether proxies for exposure to climate change concerns from different stakeholder groups influence the existence and/or completeness of quantitative GHG emissions disclosure. Findings – From 2005 to 2009, on average only 15 percent of companies that disclose GHG emissions report them in a manner that the authors consider complete. Results of regression analyses suggest that external stakeholder pressure is a determinant of the existence but not the completeness of emissions disclosure. Findings are consistent with stakeholder theory arguments that companies respond to external stakeholder pressure to report GHG emissions, but also with legitimacy theory claims that firms can use carbon disclosure, in this case the incomplete reporting of emissions, as a symbolic act to address legitimacy exposures. Practical implications – Bringing corporate GHG emissions disclosure in line with recommended guidelines will require either more direct stakeholder pressure or, perhaps, a mandated disclosure regime. In the meantime, users of the data will need to carefully consider the relevance of the reported data and develop the necessary competencies to detect and control for its incompleteness. A more troubling concern is that stakeholders may instead grow to accept less than complete disclosure. Originality/value – The paper represents the first large-scale empirical study into the completeness of companies’ disclosure of quantitative GHG emissions and is the first to analyze these disclosures in the context of stakeholder pressure and its relation to legitimation.

Sensitivity of complex networks measurements

Complex networks obtained from real-world networks are often characterized by incompleteness and noise, consequences of imperfect sampling as well as artifacts in the acquisition process. Because the characterization, analysis and modeling of complex systems underlain by complex networks are critically affected by the quality and completeness of the respective initial structures, it becomes imperative to devise methodologies for identifying and quantifying the effects of the sampling on the network structure. One way to evaluate these effects is through an analysis of the sensitivity of complex network measurements to perturbations in the topology of the network. In this paper, measurement sensibility is quantified in terms of the relative entropy of the respective distributions. Three particularly important kinds of progressive perturbations to the network are considered, namely, edge suppression, addition and rewiring. The measurements allowing the best balance of stability (smaller sensitivity to perturbations) and discriminability (separation between different network topologies) are identified with respect to each type of perturbation. Such an analysis includes eight different measurements applied on six different complex networks models and three real-world networks. This approach allows one to choose the appropriate measurements in order to obtain accurate results for networks where sampling bias cannot be avoided-a very frequent situation in research on complex networks.

Hur eller Varför? : Kunskap i sociokulturellt eller existentialistiskt perspektiv? En kritisk betraktelse

This essay set out to propose a problematic interpretation of the socio-cultural perspective on learning. Its purpose is to show how the socio-cultural perspective on learning defines the concept of knowledge in an incomplete way. The aim becomes then that of giving a more comprehensive description of this concept, and, to this end, to construct a new, broader pedagogic discourse. The investigation starts with a deconstructive analysis of Roger Säljö’s socio-cultural text in order to point out the incompleteness of the concept of knowledge. The constructive part of the analysis proceeds using Heidegger’s and Sartre’s philosophical theories which take a general approach on human learning and on human knowledge as dependent on intuition. A dichotomy of two new concepts related to knowledge is thus defined: how-knowledge and why-knowledge. This reconceptualisation of the concept of knowledge allows a reinterpretation of any act of knowledge in a structural way. Hence any act of knowledge includes a moment (a) which defines the initial contextual (conceptual or practical) situation; a moment (b) which represents an algorithm, a procedure, or a theory; and a moment (c) which represents the result of the act, and is the direct application of knowledge as a finalized entity. Knowledge inbuilt in (a) and (c) is characterized as how-knowledge, while that in (b) is characterized as why-knowledge. In a learning situation a focus on how-knowledge implies finality and objectification of students. Conversely, why-knowledge implies students becoming subjects of their own learning.

Essays on industrial organization

Esta tese compõe-se de três ensaios que versam sobre o formato, em termos de estrutura de governança, das indústrias e como a estrutura interna das mesmas in fluenciam esses formatos e seus produtos. O primeiro capítulo apresenta um modelo de como a qualidade institucional, confiança e incompleteza contratual afetam as decisiões das firmas sobre a melhor forma de se organizarem internacionalmente. O segundo capítulo vai na mesma direcão de explicar a organização das indústrias, mas com foco no efeito da transmissão de informação entre as unidades constituintes das organizações sobre o formato ótimo das mesmas. Ambos trabalhos usam modelos dinâmicos. O terceiro capítulo se utiliza da modelagem de organização industrial para mostrar como a estrutura interna de uma indústria in fluencia no risco de crédito consignado.

Design e management: um estudo de ciência e tecnologia no campo dos estudos organizacionais

Esta dissertação se propõe a cartografar as redes sociotécnicas do design no campo do management nos moldes propostos pela Teoria Ator-Rede e apresentar o processo de translação pelo qual passou o termo ao adentrar no campo. Para tal, levantou e analisou artigos publicados sobre o tema nos principais periódicos da área de organizações e publicações. Estes textos demonstram como, nas últimas décadas, o design tem passado por uma expansão de sentido e aplicação na direção do management (ou do management no sentido do design), através das abordagens denominadas design thinking, design science ou design process. A pesquisa se justifica, uma vez que este assunto está presente nos principais periódicos do management e dos estudos organizacionais, como uma importante ferramenta para solução de problemas que desafiam os sistemas organizacionais, como: a mudança, o empreendedorismo e a inovação (Stephens & Boland, 2014). É importante destacar que o design tem sido cada vez mais considerado uma atividade decisiva na batalha econômica (Callon, 1986), na determinação dos atuais estilos de vida (lifestyle) e na construção de nosso mundo futuro. No campo dos estudos organizacionais, como demonstrou esta pesquisa, o design surge como uma abordagem que supera a dicotomia entre positivismo e a abordagem crítica na teoria organizacional (Jelinek, Romme & Boland, 2008). Por fim, esta dissertação se ateve à cartografia das redes sociotécnicas e à descrição das quatro principais fases do processo de translação do design no campo do management, a saber: (a) problematização, marcada pela publicação de The Sciences of Artificial em 1969 de Herbert A. Simon, no qual, ele argumenta pelo design como uma habilidade básica para todas as especialidades profissionais, incluindo a gestão (Simon, 1996), (b) interessamento, designers defendendo um design de sistemas complexos como as organizações, (c) engajamento, designers e teóricos das organizações juntos pelo design no management como uma alternativa para a superação da dicotomia entre positivismo e os estudos críticos na administração, e, (d) mobilização, na qual os teóricos das organizações partem em defesa do design no management como um forma de dar conta de modelos organizacionais contemporâneos com fronteiras mais permeáveis e em constante reformulação

Intervenção judicial nas sociedades limitadas em face da liberdade de iniciativa

The judicial intervention in limited liability company goes through several issues of legislative and hermeneutics origin, based considerably on the small importance given to freedom of economic initiative by the participants in the process of formation and application of the law. In addition, Brazilian law, due to incompleteness, inconsistency or lack of valid grounds, put the judge in a procedural delicate situation. Being forced to judge, the judiciary faces severe uncomfortable interpretive situations, of which derive solutions of dubious constitutionality and affecting, significantly, the dynamics of business activity. In this context, and considering the limited liability company as an expression of free enterprise, corresponding to a lawful association of people in order to undertake economically, in exercise of his freedom of contracting and professional action, intended to be offered safe parameters of constitutionality for judicial intervention in limited liability company in the hypothesis of (i) transfer of corporate shares, (ii) attachment of corporate shares, (iii) dismissal of directors, (iv) appointment of judicial stakeholders, (v) exclusion of shareholders and (vi ) trespass. The hypothetical-deductive approach was adopted, building hypotheses to overcome the gaps and unconstitutionality of the law and subjecting them to tests, reviews, and comparisons with hypothetical facts and case law in order to determine the constitutional validity of the proposed solutions. The procedure aimed to reconcile the historical, comparative, dialectical and scientific methods. The roots of temporal institutes were researched as well as current solutions provided by national and compared law. From problematizations point, addressed by the constitutional interpretation of the law and jurisprudence, responses that bring out the unconstitutionality of certain conceptions were headed

O discurso formativo do Biólogo sobre a morte: matizes e metáforas do saber que o sujeito não deseja saber

This study - Biologist s formative speech about death. Nuances and metaphors from knowing that the subject of do not want to know - shows a marginal cognitive construction in scientific education from biologist - death. It considered as obvious that death is a theme that covers both the scientific education from biologist and the division of the subject, and concerns the splitting of the double life-death and the principles of inclusion and exclusion of the subject. Part of sensitive question: What is the epistemological weave who supports biologist's speech about death? It is constituted an object of study of the biologist s speech on death. It is advocated the thesis that: Death is an epistemological obstacle announcing for something always aims to escape from the perspective of knowledge, especially of scientific knowledge because, since it is understood as cognitive learning about the disruption of biological phenomenon life which is involved on weave of imaginary and symbolic constructions about the finiteness of life; it has constituted a metaphorical knowing - encouraged by the noisy silence - which does not allow to know in full, mobilizing hence subject in searching for transitional truths that reduce the ontological being-mortal anguish centered in subjective dimension involved in the act of knowing. From this movement of search that the object mental life after death wins a symbolic value that requires a real-looking multi-referential for the study of biology - life - and its implications: the finiteness of life, especially by moving the omnipotence of scientific objectivity expressed by signs and symbols that seek say the completeness of scientific knowledge-, signaling thus the existence of the dynamics of incompleteness implicit in subjectivity that supports knowledge relating to the double, life and death, and to the temporality of the existence of Homo sapiens sapiens, with the axis guiding the desire of the subject, do not want to know about death, implicit in the mechanisms objective-subjective founded by non-said of death is the epistemology of the existence of objective-subjective subject, whose core is the negation of death. The theoretical methodological knowing web is anchored in the multi-reference which favors a transit by theoretical current, as the Psychoanalysis, bachelardian philosophy, the epistemology of complexity, the Thanatology, the Social Psychology, and Etnocenology, and Understanding Interview. The unveiling of the study object from the analysis of oral speech of eleven biologists who serve in high school, from three main guiding: Death in the history of life,Death in biologist s academic education and, Conceptions about concepts

Sofrimento psíquico: representações sociais dos enfermeiros em ambiente hospitalar

We believe that the dissatisfaction arising from the lack of belief in the possibilities of change in the workplace, which cause difficulties to achieve professional results in the professional psychological distress that currently fits into the context of mental health. This is a qualitative, descriptive and representational research aiming to discover how the professional nurses represent the very psychological distress from work in the hospital environment. Aided and supported by specific objectives of identifying factors that generates this suffering and strategies for defense and confronting these professionals in the hospital. 22 nurses participated in this research, officials of the University Hospital Onofre Lopes, located in the city of Natal / RN, with length of service in the institution more than one year and less than five, and they accepted, by signing the Term of Free and Informed Consent, participate in the study. We use plurimethodological approach: a questionnaire, a semi-structured interview and the design-story with a theme adapted from Trinca with the support of the Theory of Social Representations and that nurses do in their psychological distress of the Central Core. We reviewed the data from the results generated by the ALCESTE software, based on hierarchical categorization downward, leading seven classes used as categories: Work process: completeness vs. incompleteness; labor contradiction of the nurse; qualitative aspects of interpersonal relationships; hospital surveillance: Challenges, muteness and neglect; Expectations, conflicts and feelings in the work process; Leisure: the other side of the work process, and Suffering generating aspects of in the work process. We consider the analysis of quarters generated by the program, which SLQ houses in the central core of the representations; the SRQ and the DLQ the intermediaries elements and the DRQ the peripheral elements that nurses do in their psychological distress. We analytically adequate results in the three belonging dimensions of social representations: the Subjectivity, the Intersubjectivity and Trans-subjectivity. We infer that the interpersonal relationship, the extra work, the deviation in the role of nurse show themself as the factors responsible for psychological distress of it. In that sense, the central core of SR of this profession is based on the level of trans-subjectivity and understood as a Social Representation controversy

O Comitê pela anistia no Rio Grande do Norte e a Associação Norte-Rio-Grandense de Anistiados Políticos como espaços de história, memória e política(1979-2001)

This work is about a search that takes the Comitê pela Anistia no Rio Grande do Norte and the Associação Norte-Rio-Grandense de Anistiados Políticos as Political Spaces capable of expressing History, Memory and Politic. And has as main objective analyzing the amnesty process in the State from these Spaces of political struggle and of resistance, from the 1970s until the early 2000s. The discussion of amnesty and struggle for rights and remedies are still present today on the political agenda of the country, which demonstrates the importance and the incompleteness of the amnesty. Beyond the oral sources, which are essential for understanding periods of oppression, we also used written sources, such as digital and printed newspapers, laws, meeting minutes, pamphlets of political parties, magazines, theses, dissertations, among others. We made the crossing of oral sources with written guides us as Paul Thompson, highlighting the importance of Memory, especially of Collective Memory in line with the perception of Maurice Halbwachs. Work the concept of history approached by Jacques Le Goff and Politic from the perspective of Hannah Arendt. And consider the space from the approach taken by Doreen Massey

Quadro clínico do transtorno obsessivo-compulsivo

Obsessive-compulsive disorder is a very heterogeneous condition, not always easy to be identified. Obsessions are intrusive thoughts, impulses or images that cause anxiety or other emotional discomfort, whereas compulsions are repetitive behaviors or mental acts voluntarily performed to counterbalance or minimize the discomfort, or magically prevent any feared events. The most common symptoms are contamination, aggressive, somatic and sexual obsessions and washing, checking, repeating, counting and ordering compulsions. Patients usually have multiple symptoms simultaneously, which often change over time. Although the insight is typically preserved, it varies among patients and also fluctuates in the same patient in different ocasions. The main features are: exacerbated appraisal of risks, pathological doubts and incompleteness, as well as excessive sense of responsibility and guilt and thought/action fusion. As patients frequently feel ashamed of their symptoms, they can be reticent about them. Consequently, it usually takes time till they get adequate treatment.

Inovações do Código de Processo Civil e seus reflexos no Direito Processual do Trabalho: uma análise crítica das leis n.10352/01, n.10358/01, n.10444/02, n.11187/05, 11232/05, n.11276/06, n.11277/06, n.11280/06 e n.11382/06

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Leitura, leituras de leitores e leituraleitores: texto e espaço narrativa

Pós-graduação em Educação - IBRC

Civilização suficientemente boa? Do princípio do desamparo humano ao desamparo como princípio humano

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)