Sir,—The hypothesis advanced by Narang and Linter [1] concerning the cause of unilateral extradural blockade is intriguing. However, I must take exception to their mathematics. Using the data from their table I, I have calculated the percentage of unsatisfactory blocks at each S—EDS (skin— extradural space distance) (table I). Spearmans rank correlation remains the same, but the authors' statem...

The management of a patient presenting with unsatisfactory labor epidural analgesia poses a severe challenge for the anesthetist wanting to provide safe anesthetic care for a cesarean delivery. Early recognition of unsatisfactory labor analgesia allows for replacement of the epidural catheter. The decision to convert labor epidural analgesia to anesthesia for cesarean delivery is based on the u...

Self-service technologies empower consumers to do things for themselves that they could not do before. In the case of consumers’ unsatisfactory encounters with self-service technologies, however, consumers feel powerless. Self-service technology powerlessness is defined as consumers’ feelings of SST dominance. To the authors’ knowledge, this construct has not been investigated previously in the...

Irritable bowel syndrome (IBS) is one of the most common chronic gastrointestinal disorders, yet its pathophysiology is incompletely understood and pharmacological treatments remain unsatisfactory. Current therapeutic choices include a range of drugs aimed at normalising bowel habits, reducing pain or treating comorbid psychological symptoms. However, this individual symptom-targeted approach r...

The electromagnetic field of the ultrarelativistic Reissner Nordstrøm Solution shows the physically highly unsatisfactory property of a vanishing field tensor but a nonzero, i.e. δ-like, energy density. The aim of this work is to analyse this situation from a mathematical point of view, using the framework of Colombeau’s theory of nonlinear generalized functions. It is shown that the physically...

The diagnosis of villoglandular adenocarcinoma of cervix on cytological smears is often missed due to the relatively bland cytological features of this tumour. A 45-year-old female with an exophytic cervical growth had three cervical smears reported as unsatisfactory. A cervical biopsy followed by Wertheim's hysterectomy showed a villoglandular adenocarcinoma (VGA) of cervix. Vaginal recurrence...

Fine needle aspirations (FNA) were performed on 48 patients treated for gynecologic malignancies and suspected of having recurrence of their disease. The suspected sites of metastases were peripheral lymph nodes (38 patients) and the retroperitoneal region (10 patients). Metastdtic tumors were detected in 22 out of the 48 patients (45%) by FNA, with 9 patients having additional confirmation by ...

We reviewed 12 patients with congenital hallux varus who had had operations on 20 feet to enable them to wear normal shoes and to improve the appearance. After an average follow-up of 12.7 years the results of soft tissue procedures were satisfactory in 12 of 17 feet. Arthrodesis of the first metatarsophalangeal joint, performed primarily in one foot and secondarily in two others was also satis...

Intelligent agents are starting to assume more responsibility in more critical tasks. Agents do not always work as required, however in some systems it is infeasible to simply \stop" an agent when its behavior is unsatisfactory. Instead it is desirable to reduce the agent's autonomy and give control of the unsatisfactory aspects of the agents task to a more competent entity. Adjustable Autonomy...