Objective To investigate the change in pulse transit time (PTT)-time between the electrocardiographic R wave and the highest point of the corresponding plethysmographic wave-after lumbar sympathetic ganglion block (LSGB) and evaluate PTT as an indicator of successful LSGB. Methods Sixteen cases of sympathetically mediated lower extremity neuropathic pain treated with LSGB were studied. Correlat...

This study aimed to investigate the effects of sleep deprivation on postural control, subjective fatigue assessment and psychomotor performance, and to assess the efficiency of an objective posturographic test as an indicator of mental fatigue. Postural sway using static posturography (Romberg's test), subjective fatigue assessment (Stanford Sleepiness Scale) and psychomotor performance (Sternb...

Collaborative indicators derived from quantitative statistical indicators of students’ interactions in forums can be used by e-learning systems in order to support the collaborative behaviour and motivation of students. The main objective of this research is to achieve a transferable and domain-independent reputation indicator, considering the information extracted from social network analysis,...

Region-growing segmentation algorithms are useful for remote sensing image segmentation. These algorithms need the user to supply control parameters, which control the quality of the resulting segmentation. An objective function is proposed for selecting suitable parameters for region-growing algorithms to ensure best quality results. It considers that a segmentation has two desirable propertie...

Perspective functions have long been used to convert fractional programs into convex programs. More recently, they have been used to form tight relaxations of mixed-integer nonlinear programs with socalled indicator variables. Motivated by a practical application (maximising energy efficiency in an OFDMA system), we consider problems that have a fractional objective and indicator variables simu...

Recent research and management experience has led to several frameworks for defining and managing carrying capacity of national parks and protected areas. The process outlined in contemporary carrying capacity frameworks embodies the principles of adaptive management. That is, management decisions are guided and adapted within these frameworks by monitoring indicator variables to ensure that st...

The current investigation was done to assess the bacterial load and detect the presence of indicator bacteria that acquire the spread of feacal contamination of water of river Ganga at Serampore, West Bengal, India. Total of 110 bacterial isolates, 25 feacal coliform, 50 Escherichia coli and Enterobacter sp were isolated from river water. The objective of this study also showed the antibiotic r...

This paper explores the performance of the method proposed by Efron and Thisted to predict vocabulary sizes based on sampled text. The objective of this research is to determine whether this simple and quick test can be used as a coarse indicator of authorship. Three sets of emails, as well as other texts are analyzed in order to collect performance data. The conclusion is that the test is at b...