5,865 research outputs found
Gender differences in EEG coherent activity before and after training navigation skills in virtual environments.
No full textGender differences in electroencephalographic activity (EEG) changes during navigation task performance after training were assessed in young adults. Female and male subjects were matched on initial navigation performance. EEG recordings were obtained while subjects navigated in an immersive virtual environment without visual cues, before and after a navigational skills training (9 sessions). In spite of task performance was similar in both groups, females showed higher theta band coherent activity between frontal and parietal and frontal and central regions than males before training. Correlation in theta band between fronto-central, fronto-parietal, and centro-parietal regions was enhanced in the left hemisphere for females but in the right hemisphere for males after training. Females also demonstrated a decreased in correlation in theta band over the right hemisphere between centro-parietal regions, whereas males demonstrated a similar effect over the left hemisphere. Navigation training seems to promote fronto-central-parietal synchronization in both genders but in different hemisphere. These results are interpreted as reflecting verbal-analytical working memory functions in females and global-spatial working memory mode in males
Gender differences in EEG coherent activity before and after training navigation skills in virtual environments
No full textGender differences in electroencephalographic activity (EEG) changes during navigation task performance after training were assessed in young adults. Female and male subjects were matched on initial navigation performance. EEG recordings were obtained while subjects navigated in an immersive virtual environment without visual cues, before and after a navigational skills training (9 sessions). In spite of task performance was similar in both groups, females showed higher theta band coherent activity between frontal and parietal and frontal and central regions than males before training. Correlation in theta band between fronto-central, fronto-parietal, and centro-parietal regions was enhanced in the left hemisphere for females but in the right hemisphere for males after training. Females also demonstrated a decreased in correlation in theta band over the right hemisphere between centro-parietal regions, whereas males demonstrated a similar effect over the left hemisphere. Navigation training seems to promote fronto-central-parietal synchronization in both genders but in different hemisphere. These results are interpreted as reflecting verbal-analytical working memory functions in females and global-spatial working memory mode in males. � 2011 Pleiades Publishing, Ltd
Rainbow Valley as embodied heaven: L.M. Montgomery’s narrative spirituality in Rainbow Valley
No full textIntriguingly, L.M. Montgomery’s generally realistic fiction is filled with fantastic elements. This article argues that by following Montgomery into the heavenly fairyland of Rainbow Valley, readers can discern a joyful, creative, imaginative, and integrated image of spiritual life in the conversations, the characters, and the magic valley itself
Befriending the darkness: L.M. Montgomery’s lived theodicy in Anne’s House of Dreams
No full textIn Anne’s House of Dreams, which Elizabeth Epperly calls Montgomery’s most philosophical novel, Montgomery delves into painful topics of loss, suicide, bad marriages, ill-timed love, poverty, and the beautiful-terrible consequences of duty. The result is a complex and nuanced consideration of faithful living in the face of unexplainable evil that functions as a lived theodicy in story form.
“I reckon when the darkness is close to us it is a friend. But when we sorter push it away from us—divorce ourselves from it, so to speak, with lantern light—it becomes an enemy.”
—L.M. Montgomery, Captain Jim in Anne’s House of Dream
Event-related potentials and event-related oscillations during identity and facial emotional processing in schizophrenia
No full textImpairments in emotional recognition have been consistently reported in schizophrenic patients. The main aim of the present study was to evaluate time-sequenced responses in ERPs and event-related oscillations during emotional recognition of happiness and fear compared to facial identity recognition in schizophrenic patients (SCH) versus healthy controls (CON). Ten paranoid SCH and ten CON subjects performed three oddball paradigm tasks, evaluating face identity recognition and facial emotional recognition of happiness and fear. Event-related potentials and event-related theta and alpha oscillations were obtained for each task. N170 and P2 components appeared with higher amplitude in SCH than in CON at the occipital locations. An early prefrontally distributed P3a component was observed while doing the identity task with lower amplitude in SCH than in CON. Comparatively, P3b amplitude was lower in SCH than in CON over parietal leads in the identity and happiness tasks. Additionally, theta oscillations showed significantly lower RMS values in SCH between 250 and 500\ua0ms post-stimuli in frontal and central regions. On the other hand, the grand-averaged alpha oscillations demonstrated higher RMS values in the occipital leads in SCH compared to CON and the opposite over the frontal regions. Results are interpreted in the framework of a functional disruption in the distributed neuronal networks involved both in facial identity and emotional recognition in schizophrenics as indexed by the brain oscillatory activity and related ERP components. © 2008 Elsevier B.V. All rights reserved
Evaluation of Psilocybe cubensis (Agaricales, Basidiomycota) toxicity over Artemia franciscana (Crustacea, Anostraca) [Evaluación de la toxicidad de Psilocybe cubensis (Agaricales, Basidiomycota) sobre Artemia franciscana (Crustacea, Anostraca)]
No full textImpairments in emotional recognition have been consistently reported in schizophrenic patients. The main aim of the present study was to evaluate time-sequenced responses in ERPs and event-related oscillations during emotional recognition of happiness and fear compared to facial identity recognition in schizophrenic patients (SCH) versus healthy controls (CON). Ten paranoid SCH and ten CON subjects performed three oddball paradigm tasks, evaluating face identity recognition and facial emotional recognition of happiness and fear. Event-related potentials and event-related theta and alpha oscillations were obtained for each task. N170 and P2 components appeared with higher amplitude in SCH than in CON at the occipital locations. An early prefrontally distributed P3a component was observed while doing the identity task with lower amplitude in SCH than in CON. Comparatively, P3b amplitude was lower in SCH than in CON over parietal leads in the identity and happiness tasks. Additionally, theta oscillations showed significantly lower RMS values in SCH between 250 and 500 ms post-stimuli in frontal and central regions. On the other hand, the grand-averaged alpha oscillations demonstrated higher RMS values in the occipital leads in SCH compared to CON and the opposite over the frontal regions. Results are interpreted in the framework of a functional disruption in the distributed neuronal networks involved both in facial identity and emotional recognition in schizophrenics as indexed by the brain oscillatory activity and related ERP components. " 2008 Elsevier B.V. All rights reserved.",,,,,,"10.1016/j.ijpsycho.2008.07.008",,,"http://hdl.handle.net/20.500.12104/41359","http://www.scopus.com/inward/record.url?eid=2-s2.0-58149314356&partnerID=40&md5=874bdf0c7cfc98ca11413affb7f3026
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India's Vibgyor man ::selected writings and speeches of L.M. Singhvi /
No full textDr L.M. Singhvi had a multifaceted personality - author, jurist, statesman, philosopher and social reformer. A product of many reputed universities like the University of Allahabad, University of Rajasthan, Harvard University and Cornell University, he was the most celebrated Indian public figure of contemporary times. This volume reflects L.M. Singhvi's prodigious scholarship
Concentration Dependence Of Hyperfine Parameters Of Fe-cu Alloys
No full textFe-Cu alloys produced by mechanical alloying were studied by Mössbauer spectroscopy. Room-temperature Mössbauer spectroscopy done on samples of Fex-Cu100-x (10< x< 45) show a change with concentration, from a superparamagnetic doublet to a broad sextet. The isomer shift behavior with concentration is analyzed with a simple model based on the chemical neighborhood. Quadrupole splitting slightly increases with concentration. Hyperfine parameters of high-temperature spectra of concentrated samples follow the behavior observed for the less-concentrated samples. A comparison with the hyperfine parameters of Fe-Cu alloys obtained by sputtering is done.2297101Uenishi, K., Kobayashi, K., Nasu, S., Hatano, H., Ishihara, K., Shingu, P.H., (1992) Z. Metallkd., 83, p. 132Yavari, A.R., Desré, P.J., Benameur, T., (1992) Phys. Rev. Lett., 68, p. 2235Ma, E., Atzmon, M., Pinkerton, F.E., (1993) J. Appl. Phys., 74 (2), p. 955Eilon, M., Ding, J., Street, R., (1995) J. Phys.: Condens. Matter, 7, p. 4921Saxena, S.S., Tang, J., Lee, Y., O'Connor, C.J., (1994) J. Appl. Phys., 76 (10), p. 6820Ding, J., Eilon, M., Street, R., St Pierre, T., Smith, P., McCormick, P.G., (1995) J. Magn. Magn. Mat., 140-144, p. 471Barro, M.J., Navarro, E., Agudo, P., Hernando, A., Crespo, P., García Escorial, A., (1997) Mat. Sci. Forum, 235-238, p. 553Socolovsky, L.M., Sánchez, F.H., Yasuna, K., Otsuki, A., Ishihara, K., Shingu, P.H., (1998) Hyp. Int. (C), 3, p. 210Jiang, J.Z., Gonser, U., Gente, C., Bormann, R., (1993) Appl. Phys. Lett., 63 (20), p. 2768Socolovsky, L.M., Sánchez, F.H., Shingu, P.H., (2001) Hyp. Int., 133, p. 47Shenoy, G., Wagner, F., (1978) Mössbauer Isomer Shifts, p. 409. , North Holland, AmsterdamChien, C.L., Liou, S.H., Kofalt, D., Wu, Y., Egami, T., McGuire, T.R., (1986) Phys. Rev. B, 33, p. 3247L. M. Socolovsky, F. H. Sánchez, unpublished resultsMonteiro, D.W.L., Larica, C., Nunes, E., Passamani, E.C., Alves, K.M.B., (1998) Hyperfine Interactions (C), 3, p. 17Elkalkouli, R., Chartier, P., Dinhut, J.F., (1995) Mat. Sci. Forum, 179-181, p. 267Macrí, P.P., Rose, P., Frattini, R., Enzo, S., Principi, G., Hu, W.X., Cowlam, N., (1994) J. Appl. Phys., 76 (7), p. 4061Agüero, O.E., Socolovsky, L.M., Torriani, I.L., Crystallite size and strain study of a nanostructured Fe-Cu alloy from diffraction profile analysis (2003) ISMANAM Conference, , presentation to the, Foz do Iguaçu, BrazilMcLean, A.B., Mitchell, C.E.J., Swanston, D.M., (1994) Journal of Electron Spectroscopy, 69, pp. 125-132Socolovsky, L.M., Sánchez, F.H., (2003) Materials Characterization, 50, pp. 123-12
The role of L.M. Karakhan in the Chinese policy of the Soviet Union (1923–1926)
No full textIn the 1920s, the young Soviet state pursued several, sometimes mutually exclusive, goals in its policy towards China. On the one hand, the Soviet leadership did its best to achieve international recognition and sought to protect its vital interests. On the other hand, it actively promoted the idea of a world revolution. Under those circumstances, the country’s foreign ministry needed experienced, flexible, and pragmatic diplomats. In this regard, the activities of L.M. Karakhan, who was sent as a Soviet emissary to the Republic of China to address these sensitive issues, are of particular interest. The figure of L.M. Karakhan is all the more remarkable because, being one of the architects of the USSR’s foreign policy towards China, he himself has not received much attention in either Soviet or Russian historiography. On the basis of new archival documents and Chinese primary sources the paper attempts to give a comprehensive assessment of L.M. Karakhan’s tenure first as a plenipotentiary and then as an ambassador of the USSR to China. The first sections consider the tasks of L.M. Karakhan’s diplomatic mission in China and the vicissitudes of the negotiations on the Soviet-Chinese agreement on the establishment of diplomatic relations. To that end, the Soviet diplomat, following the directives from Moscow, flexibly maneuvered between various groupings of Chinese elites and resisted the pressure of other great powers’ representatives. The following sections examine L.M. Karakhan’s activities as a Soviet ambassador. The author concludes that L.M. Karakhan consistently defended the national interests of the USSR, skillfully combining a fine diplomatic game and assertiveness, even rigidity at times. The latter was vividly manifested in the most challenging issues of Soviet-Chinese relations, such as disputes over the status of the Chinese Eastern Railway and Outer Mongolia. At the same time, the ambassador took an active part in organizing and supporting the revolutionary movement in China. In fact, L.M. Karakhan served as a central coordinator of the Soviet aid to the Kuomintang, determining both its forms and substance. The author concludes that L.M. Karakhan proved himself not merely as an agent of the Soviet leadership, but also as a politician in its own right capable to effectively address a wide range of tasks, some of which had not originally been intended by his mission. That said it is worth mentioning that the assertive, tough style of the Soviet diplomat often raised a lot of criticism among foreign representatives, since it was at odds with the declared USSR intentions to break with the foreign policy practices of tsarist Russia
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