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Pilar G. Paez presents a check to Luis Chavez, $200 scholarship to attend Texas Technology College in Lubbock (photograph)
No full text(L. to R.) Pilar G. Paez presents a check to Luis Chavez, $200 scholarship to attend Texas Technology College in Lubbock. Mr. Williams H. Crenshaw is a director of the college
Attention: A view suggested by systemic and cybernetic consideration
No full textThis thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.Current views and models about attention regard man as a 'transmitter channel' and try to characterise the properties of that 'odd channel'. Another characteristic of the current views is that attention is regarded as a specific mental operation in a person which can be described, irrespective of the purposes of the subject.
By contrast we examine attention as an activity at the service of the purposes of the person. Attention is examined as an activity by means of which the field of consciousness is structured around the 'object of attention'. This object of attention is not a specific 'stimulus' but a system in the sense of General System Theory. Hence, the approach is mainly holistic in character. Activity is looked upon as an INTERTRAFFIC between the person and his relation with the world. And where there is relatedness, information theory, in a cybernetic sense, can be used. The approach developed benefits of the advantages from previous models allowing also for a better explanation of the limitation present in the cognitive realm without appeal to some 'filter mechanism' in the physiological structure of a person.Consejo de Desarrollo Cientifico y Humanistico
U. C. V. Caraca
U.S. President Barack Obama speaks at the screening of "Cesar Chavez: an American hero"
No full textPresident Obama hosts a screening of "Cesar Chavez: An American Hero." President Obama tells of labor leader Cesar Chavez's commitment to hard work and of how he thinks that more hard work needs to be done, prior to a screening of a film celebrating the life of Chavez, founder of the United Farm Workers union. Held in the White House
Cesar E. Chavez commemoration : we are all Arizona
No full textMichigan State University faculty join together at the MSU Main Library for a reading event entitled, "Cesar E. Chavez Commemoration: We Are All Arizona". The group reads from books recently banned in the state of Arizona, a state which has also passed laws to eliminate Hispanic studies in the state school system. Selected works include "Codex tamuanchan: on becoming human" by R. Rodrigueq, "Pedagogy of the oppressed" by Paulo Freire and "For whom the Taco Bell tolls" by Elizabeth Martinez. The group also celebrates the fiftieth anniversary of the creation of the United Farm Workers union founded by Chavez and Dolores Huerta. A question and answer session follows. The event is moderated by MSU Librarian Diana Rivera
The Role of Morality and Religiosity in Ethnic and Homophobic Prejudice Among Teachers
No full textThe role of moral disengagement strategies and religiosity related to ethnic and
homophobic prejudice were investigated in a sample of 550 Italian secondary school
teachers (76.4% female, age range: 20–70; M=46.18) who completed the teachers’
attitudes towards the representation of homosexuality in flm and television scale;
the Italian version of the moral disengagement scale; the subtle and blatant prejudice
scales; and three items to evaluate their religiosity. Evidence suggests that moral disengagement processes matter for subtle ethnic prejudice, but not for blatant ethnic
prejudice or homophobic prejudice. Results based on a structural equation model
show that teachers who are more prone to use moral disengagement mechanisms
have higher levels of subtle ethnic prejudice, while teachers who are older and more
religious have higher levels of homophobic prejudice. The results of a multiple
group structural equation model showed that high versus low levels of religiosity
among teachers did not moderate the strength of these associations. Theoretical and
educational implications are discussed
Like principal, like agent? Managerial preferences in employee-owned firms
No full textThe relationship between firms' owners and managers is a quintessential example of costly principal-agent interaction. Optimal design of monetary incentives and supervision mechanisms are the two traditional ways of reducing agency costs in this relationship. In this paper, we show evidence which is consistent with a third mechanism: firms have managers whose economic preferences are aligned with owners' interests. We uncover differences in economic preferences between managers employed in firms controlled by two distinct classes of 'patrons': employee-owned firms (worker cooperatives) and conventional investor-owned firms. In a high-stakes lab-in-the-field experiment, we find that co-op managers are less risk-loving and more altruistic than their conventional counterparts. We do not observe differences between the two groups in terms of time preferences, reciprocity, and trust. Our findings are consistent with existing evidence on worker cooperatives, such as their tendency to self-select into less risky industries and their compressed compensation structures
Venezuela\u27s Hugo Chavez, Bolivarian Socialism, and Asymmetric Warfare
No full text¿Habla español? Military Review translated this study to Spanish. View the translated study. The author answers questions regarding Who is Hugo Chavez? How can the innumerable charges and countercharges between the Venezuelan and U.S. governments be interpreted? What are the implications for democracy and stability in Latin America? In an attempt to answer these and related questions, the analysis centers on the contemporary geopolitical conflict context of current Venezuelan Bolivarian (bolivarianismo) policy. To accomplish this, a basic understanding of the political-historical context within which Venezuelan national security policy is generated is an essential first step toward understanding the situation as a whole. The second step requires an introductory understanding of Chavez\u27s concept of 21st century socialism, and the political-psychological-military ways he envisions to achieve it. Then, a levels of analysis approach will provide a systematic understanding of the geopolitical conflict options that have a critical influence on the logic that determines how such a policy as bolivarianismo might continue to be implemented by Venezuela or any other country in the contemporary world security arena. At the same time, this analysis provides an understanding of how other countries in the Western Hemisphere and elsewhere might begin to respond to bolivarianismo\u27s possible threats. Finally, this is the point from which one can generate strategic-level recommendations for maintaining and enhancing stability in Latin America.https://press.armywarcollege.edu/monographs/1732/thumbnail.jp
Medical therapy of aortic aneurysms: A pathophysiology-based approach
No full textOne of the critical points in the pathogenesis of aortic aneurysms (AAs) is the disruption of the balance between vascular extracellular matrix (ECM) deposition and degradation. AAs are common features in some genetically determined diseases of the connective tissue, such as Marfan and Ehlers-Danlos. Acquired factors determining an enhanced inflammatory state of the arterial wall also play a key role. Previous studies have determined the role of tumor growth factor β (TGF-β); as a principal mediator of the pathogenesis of the alterations of the arterial wall homeostasis in AAs. The medical management of any AA is mainly focused on the use of pharmacological agents that reduce hemodynamic stress of the aortic wall, since hypertension is the major risk factor for the enlargement and rupture of the AAs. However, this is far from being a comprehensive pathophysiology-based therapeutic approach. Drugs potentially able to reduce the release of TGF- β may play a role in the pathogenesis of the AAs. They work by improving matrix repair, decreasing the proteolytic pattern and inhibition of angiotensin-converting enzyme (ACE) as well as preventing angiotensin II-induced angiotensin type-1 receptor (AT1R) activation. A new pathophysiology-based therapeutic approach, involving the mechanisms leading to the rupture of the AAs, could represent an additional tool in combination with the current established antihypertensive therapy. © 2011 Bentham Science Publishers
Neuropsychological constraints to human data production on a global scale
No full textWhich are the factors underlying human information production on a global level? In order to gain an insight into this question we study a corpus of 252–633 mil. publicly available data files on the Internet corresponding to an overall storage volume of 284–675 Terabytes. Analyzing the file size distribution for several distinct data types we find indications that the neuropsychological capacity of the human brain to process and record information may constitute the dominant limiting factor for the overall growth of globally stored information, with real-world economic constraints having only a negligible influence. This supposition draws support from the observation that the files size distributions follow a power law for data without a time component, like images, and a log-normal distribution for multimedia files, for which time is a defining qualia.
Author summary: The generation of new information is limited by two key factors, by the incurring economic costs and by the capacity of the human brain to process and store data and information; the controlling agent needs to retain an overall understanding even when data is generated by semiautomatic processes. These processes are reflected in the statistical properties of the data files publicly available on the Internet. Collecting a corpus of 252–633 mil. files we find that the statistics of the file size distribution are consistent with the supposition that data production on a global level is shaped and limited by the neuropsychological information processing capacity of the brain, with economic and hardware constraints having a negligible influence
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