Bayesian Analysis of Location-Scale Family of Distributions Using S-PLUS and R Software

The Normal and Laplace’s methods of approximation for posterior density based on the location-scale family of distributions in terms of the numerical and graphical simulation are examined using S-PLUS and R Software

Solar Transients disturbing the Terrestrial Magnetic Environment at Higher Latitudes

Geomagnetic field variations during five major Solar Energetic Particle (SEP) events of solar cycle 23 have been investigated in the present study. The SEP events of 01 oct 2001, 04 Nov 2001, 21 Apr 2002 and 14 May 2005 have been selected to study the geomagnetic field variations at two high-latitude stations, Thule and Resolute Bay of the northern polar cap. We have used the GOES protn flux in seven different energy channels. All the proton events were associated with geoeffective or Earth directed CMEs that caused intense geomagnetic storms in response to geospace. We have taken high-latitude indices, AE and PC, under consideration and found fairly good correlation of thees with the ground magnetic field records during the five proton events. The departure of H component during the events were calculated from the quietest day of the month for each event. The correspondence of spectral index, inferred from event integrated spectra, with ground magnetic signatures along with Dst and PC indices have been brought out. From the correlation analysis we found very strong correlation to exist between the geomagnetic field variations and high latitude indices AE and PC. To find the association of geomagnetic storm intensity with proton and geomagnetic field variations along with the Dst and AE index. We found a strong correlation (0.88) to exist between the spectral indices and magnetic field deviations and also between spectral indices and AE and PC.Comment: Accepted for publication in Astrophys Space Sci (2013) (19 pages, 6 figures, 2 tables

Evaluation of incidence and severity of postoperative hypoxemia in neurosurgical patients during transportation from operation theater to surgical intensive care unit in a tertiary care unit, Kashmir, India

Background:Postoperative hypoxemia during transportation from operation theater to intensive care unit is common among neurosurgical patients. Methadology: Arterial oxygen saturation (Spo2) and arterial blood gas analysis was performed postoperatively before and after shifting a group of sixty patients with ASA I and ASA II status undergoing various elective neurosurgical procedures under general anesthesia at Sheri-Kashmir Institute of Medical Sciences Srinagar , Kashmir. Statistical analysis: The data was analyzed using SPSS version 13. The chi-square test was used for categorical variables and student’s t test was used for continuous variables with normal distribution. The data was collected, compiled and statistically analyzed using analysis of variance (ANOVA). The values were expressed as mean±SD and a p value <0.05 was taken as statistically significant. Results: SpO2 before and after transporting the patients to SICU in group I was 98.90±0.45 and 86.70±3.85 respectively, whereas in group II, the SpO2 values were 98.80±0.52 and 93.95±3.99 respectively. In group III the mean SpO2 before and after transportation was 97.60±1.96 and 83.95±8.64 respectively. The difference in SpO2 in all the three groups before and after transportation was statistically significant (p<0.05). Conclusion: We recommend supplemental oxygen administration in all neurosurgical patients during transportation from operation theater to intensive care unit

Robotic rectal cancer surgery in obese patients may lead to better short-term outcomes when compared to laparoscopy: a comparative propensity scored match study

Se identifican en el presente trabajo los elementos fundamentales de la trama urbana de la ciudad de Toledo. La metodología propuesta se aparta de la utilizada tradicionalmente, debido a las peculiaridades que presenta su ubicación física concreta, intentando enfatizar de forma especial el estudio del medio físico. Para ello se parte de un análisis topográfico y climático del cerro toledano, relacionado con la evolución histórica de la forma urbana, sobre todo con el sistema de murallas. Mediante esta metodología llegan a detectarse cinco ejes estructurantes: el formado por las calles del Barco y Pozo Amargo, el de la puerta de San Sebastián, el de Tendillas y Nuncio Nuevo, el de la calle de la Luz y Azacanes y el del barrio de la Antequeruela. Este esquema se completa con vaguadas secundarias y líneas de deslizamiento. También se detecta un gran colector que se encarga de articular toda esta red y que está formado por las calles del Ángel, Santo Tomé, Trinidad, Hombre de Palo y del Comercio, uniendo entre sí las antiguas puertas interiores de Assuica y de la Sangre