1,789 research outputs found
The Phenomenon of Suicide Bombing: A Review of Psychological and Nonpsychological Factors
This article reviews the literature on the phenomenon of suicide bombing. It addresses the question of just how much a psychological understanding of the individuals involved can aid in prevention. The article looks at historical, epidemiological, and cultural perspectives and compares the nonpsychological and psychological approaches to suicide bombing. On the basis of the material available it seems that social processes such as group-dynamic indoctrination and political factors are decisive in analyzing this problem. Cultural, nationalistic, and religious factors are important. The conclusion is that in suicidal bombing, suicide is instrumental in the context of war, not in the context of psychopathology. Suicide bombing is instrumental in realizing fatalities, and it is only one of many weapons. The act of killing in warfare is more important to understanding suicidal terrorism than the act of suicide. This explains why psychological profiling of suicidal terrorists has to date not been successful. Keywords: suicide, terror, bombing, indoctrination, psychological and nonpsychological approache
New Light on Some Old Problems: Revisiting the Stefan Tube, Graham's Law, and the Bosanquet Equation
Las filigranas del manuscrito S del Libro de buen amor
n la introducción a su edición paleográfica del libro de Juan Ruiz, Jean Ducamin describe las filigranas encontradas por él en el manuscrito de Salamanca. En una nota al pie de la página Ducamin lamenta la falta de un diccionario de filigranas de papel fabricado en España. En su edición crítica del Libro de Buen Amor, Manuel Criado de Val y Eric Naylor se limitan a repetir estos datos de Ducamin. Ninguno de los editores modermos volvió sobre el asunto, de modo que podemos concluir que hasta ahora nadie ha utilizado las filigranas del manuscrito salmantino para su datación
Hacia una nueva edición de la Coronación (poesía y comentario en prosa) de Juan de Mena
Mediante el análisis de diferentes fragmentos de las ediciones de Pérez Priego y de Gómez Moreno—Jiménez Calvante de la Coronación, el autor se propone demostrar que no existe todavía ninguna edición fidedigna de este texto, ya que no se ha prestado suficiente atención a los manuscritos del siglo XVI, a las ediciones antiguas, y a las fuentes que Mena utilizó. Es necesario, por tanto, la elaboración de una nueva edición en la que se realice este laborioso trabajo
Laser light scattering (LLS) to observe plasma impact on the adhesion of micrometer-sized particles to a surface
Laser light scattering (LLS) method, combined with a long-distance microscope was utilized to detect micrometer-sized particles on a smooth substrate. LLS was capable to detect individual particle release, shrink, or fragmentation during exposure to a plasma or a gas jet. In-situ monitoring of hundreds of particles was carried out to investigate the effect of hydrogen plasma exposure on particle adhesion, morphology, and composition. LLS was calibrated with monodisperse melamine resin spheres with known sizes of 2.14 µm, 2.94 µm, and 5.26 µm in diameter. The lowest achievable noise level of approximately 3% was demonstrated for counting 5.26 µm spherical melamine particles. The accuracy for melamine particle size measurements ranged from 50% for 2.14 µm particles to 10% for 5.26 µm particles. This scatter was taken as the imprecision of the method. Size distribution for polydisperse particles with known refractive index was obtained by interpolating to an effective scattering cross-section of a sphere using Mie theory. While the Abbe diffraction limit was about 2 µm in our system, the detection limit for Si particles in LLS according to Mie approximation was assessed to about 3 µm, given the limitations of the laser flux, microscope resolution, camera noise, and particle composition. Additionally, the gradual changes in forward scattering cross-sections for Si particles during the exposure to the hydrogen plasma were consistent with Si etching reported in the literature.</p
Predicting frequent COPD exacerbations using primary care data
This study was funded by an unrestricted grant from the Respiratory Effectiveness Group (REG; www.effectivenessevaluation.org). Access to data from the Optimum Patient Care Research Database was co-funded by Research in Real-Life Ltd (RiRL, Cambridge, UK). The authors would like to thank Dr John Bukowski of WordsWorld Consulting for editorial assistance drafting this manuscript. Additional editorial support was provided by Elizabeth V Hillyer, DVM, funded by RiRL.Peer reviewedPublisher PD
Effects of Light-at-Night on the Rat Liver - A Role for the Autonomic Nervous System
Exposure to light at night (LAN) has been associated with serious pathologies, including obesity, diabetes and cancer. Recently we showed that 2 h of LAN impaired glucose tolerance in rats. Several studies have suggested that the autonomic nervous system (ANS) plays an important role in communicating these acute effects of LAN to the periphery. Here, we investigated the acute effects of LAN on the liver transcriptome of male Wistar rats. Expression levels of individual genes were not markedly affected by LAN, nevertheless pathway analysis revealed clustered changes in a number of endocrine pathways. Subsequently, we used selective hepatic denervations [sympathetic (Sx), parasympathetic (Px), total (Tx, i.e., Sx plus Px), sham] to investigate the involvement of the ANS in the effects observed. Surgical removal of the sympathetic or parasympathetic hepatic branches of the ANS resulted in many, but small changes in the liver transcriptome, including a pathway involved with circadian clock regulation, but it clearly separated the four denervation groups. On the other hand, analysis of the liver metabolome was not able to separate the denervation groups, and only 6 out of 78 metabolites were significantly up- or downregulated after denervations. Finally, removal of the sympathetic and parasympathetic hepatic nerves combined with LAN exposure clearly modulated the effects of LAN on the liver transcriptome, but left most endocrine pathways unaffected. Conclusion: One-hour light-at-night acutely affects the liver transcriptome. Part of this effect is mediated via the nervous innervation, as a hepatectomy modulated and reduced the effect of LAN on liver transcripts
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