Waiting time jitter is one of the main problems encountered in ATM (asynchronous transfer mode) n... more Waiting time jitter is one of the main problems encountered in ATM (asynchronous transfer mode) networks, as its amplitude (after filtering) can exceed that permitted by current standards. A method for reducing jitter is presented which consists in transmitting the phase information from the plesiochronous source measured by a reference clock. This information is protected against transmission errors and cell loss. It is shown that it is possible to conform to CCITT recommendation G.823 for all plesiochronous rates of the 2-Mb/s hierarchy defined in recommendation G.702 by using as the reference clock either the 2-MHz synchronization network or the future 155-MHz network provided by the synchronous systems (synchronous digital hierarchy)
The main penile or cavernous nerve is usually regarded as the most important vasodilator projecti... more The main penile or cavernous nerve is usually regarded as the most important vasodilator projection in the rat. Although other descending pathways have been described, there is little detailed information on their importance. In this present report, we provide topographic and quantitative information on lateral and ventral penile branches and examine the vasodilator ®bers which join the pudendal neurovascular bundle. Seventeen Sprague-Dawley rats were used. The techniques included injection of dye in the penis to label neurons in the pelvic plexus in combination with transection of the main penile nerve (MPN). NADPH diaphorase (NADPH-d) histochemistry was used to assess the effects of transection of vasodilator pathways on innervation of the penis and for in situ staining of the pelvic plexus. Distinct clusters of penile neurons are aggregated at the origin of several nerve tracts leaving the posterior margin of the major pelvic ganglion (MPG). Multiple NADPH-d ®ber bundles coursed over the anterior surface of the prostate to reach the penis. Branches from these tracts joined the pudendal neurovascular bundle proximal to the hilum of the penis and provided innervation to the artery throughout its course in the pudendal canal. Consistent with the presence of multiple penile pathways, transection of the MPN reduced, but did not eliminate retrograde labeling of penile neurons in the MPG and only modestly decreased NADPH-d ®bers in the penis. This study con®rms that there are multiple pathways by which vasodilator ®bers reach the penis. If a similar allocation of vasodilator output is present in man, preservation of ®ner branches of the pelvic plexus would be important in surgical procedures on the prostate.
Palliative care is not accessed by all those who can benefit from it. Survey aim: To explore awar... more Palliative care is not accessed by all those who can benefit from it. Survey aim: To explore awareness of palliative care and related services among UK oncology out-patients, and to analyse the relationship between demographic characteristics and knowledge. Cross-sectional interview-based survey. Analysis comprised univariate and multiple logistic regression. Oncology out-patients receiving curative treatments at two district general hospitals in north-west London between December 2004 and April 2005. A total of 252 (94%) eligible clinic patients were interviewed. Only 47 (18.7%) patients recognised the term 'palliative care', but 135 (67.8%) understood the role of the hospice, and 164 (66.7%) understood the role of Macmillan nurses. Age-adjusted multiple logistic regression showed that recognizing the term 'palliative care' was more likely among the most socially and materially affluent patients than those who were the poorest (OR: 8.4, CI: 2.17-31.01, p =0.002). Understanding the role of Macmillan nurses was also more likely among the most socially and materially affluent patients compared with the poorest patients (OR: 7.0, CI: 2.41-18.52, p <0.0001), and was independently less likely among patients from black and minority ethnic groups than those who were classified as being white British (OR=0.5, CI:0.25-0.96, p =0.04). Awareness of palliative care and related services was low among black and minority ethnic groups, and the least affluent.
El azucar invertido de hace con unos 325 gramos de azucar, unos 125 ml de agua, 2 gramos de bicar... more El azucar invertido de hace con unos 325 gramos de azucar, unos 125 ml de agua, 2 gramos de bicarbonato de sodio y 2 gramos de acido citrico en polvo ó 3 gotas de jugo de limon. Calientas el azucar y el agua. Cuando hierve lo dejas 1 minuto sin moverlo y le hechas el bicarbonato y el jugo de limon. Eso hace que la glucosa y la sacarosa del azucar se separen.
Waiting time jitter is one of the main problems encountered in ATM (asynchronous transfer mode) n... more Waiting time jitter is one of the main problems encountered in ATM (asynchronous transfer mode) networks, as its amplitude (after filtering) can exceed that permitted by current standards. A method for reducing jitter is presented which consists in transmitting the phase information from the plesiochronous source measured by a reference clock. This information is protected against transmission errors and cell loss. It is shown that it is possible to conform to CCITT recommendation G.823 for all plesiochronous rates of the 2-Mb/s hierarchy defined in recommendation G.702 by using as the reference clock either the 2-MHz synchronization network or the future 155-MHz network provided by the synchronous systems (synchronous digital hierarchy)
The main penile or cavernous nerve is usually regarded as the most important vasodilator projecti... more The main penile or cavernous nerve is usually regarded as the most important vasodilator projection in the rat. Although other descending pathways have been described, there is little detailed information on their importance. In this present report, we provide topographic and quantitative information on lateral and ventral penile branches and examine the vasodilator ®bers which join the pudendal neurovascular bundle. Seventeen Sprague-Dawley rats were used. The techniques included injection of dye in the penis to label neurons in the pelvic plexus in combination with transection of the main penile nerve (MPN). NADPH diaphorase (NADPH-d) histochemistry was used to assess the effects of transection of vasodilator pathways on innervation of the penis and for in situ staining of the pelvic plexus. Distinct clusters of penile neurons are aggregated at the origin of several nerve tracts leaving the posterior margin of the major pelvic ganglion (MPG). Multiple NADPH-d ®ber bundles coursed over the anterior surface of the prostate to reach the penis. Branches from these tracts joined the pudendal neurovascular bundle proximal to the hilum of the penis and provided innervation to the artery throughout its course in the pudendal canal. Consistent with the presence of multiple penile pathways, transection of the MPN reduced, but did not eliminate retrograde labeling of penile neurons in the MPG and only modestly decreased NADPH-d ®bers in the penis. This study con®rms that there are multiple pathways by which vasodilator ®bers reach the penis. If a similar allocation of vasodilator output is present in man, preservation of ®ner branches of the pelvic plexus would be important in surgical procedures on the prostate.
Palliative care is not accessed by all those who can benefit from it. Survey aim: To explore awar... more Palliative care is not accessed by all those who can benefit from it. Survey aim: To explore awareness of palliative care and related services among UK oncology out-patients, and to analyse the relationship between demographic characteristics and knowledge. Cross-sectional interview-based survey. Analysis comprised univariate and multiple logistic regression. Oncology out-patients receiving curative treatments at two district general hospitals in north-west London between December 2004 and April 2005. A total of 252 (94%) eligible clinic patients were interviewed. Only 47 (18.7%) patients recognised the term 'palliative care', but 135 (67.8%) understood the role of the hospice, and 164 (66.7%) understood the role of Macmillan nurses. Age-adjusted multiple logistic regression showed that recognizing the term 'palliative care' was more likely among the most socially and materially affluent patients than those who were the poorest (OR: 8.4, CI: 2.17-31.01, p =0.002). Understanding the role of Macmillan nurses was also more likely among the most socially and materially affluent patients compared with the poorest patients (OR: 7.0, CI: 2.41-18.52, p <0.0001), and was independently less likely among patients from black and minority ethnic groups than those who were classified as being white British (OR=0.5, CI:0.25-0.96, p =0.04). Awareness of palliative care and related services was low among black and minority ethnic groups, and the least affluent.
El azucar invertido de hace con unos 325 gramos de azucar, unos 125 ml de agua, 2 gramos de bicar... more El azucar invertido de hace con unos 325 gramos de azucar, unos 125 ml de agua, 2 gramos de bicarbonato de sodio y 2 gramos de acido citrico en polvo ó 3 gotas de jugo de limon. Calientas el azucar y el agua. Cuando hierve lo dejas 1 minuto sin moverlo y le hechas el bicarbonato y el jugo de limon. Eso hace que la glucosa y la sacarosa del azucar se separen.
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