The experiment was conducted to examine the effect of prior-item retention interval on the retention of a given item in a short-term memory test series. There were five conditions. The retention interval for the fifth test of five successive tests was 15 sec. for all five conditions. The retention intervals for tests 1–4 were constant for a condition but varied across conditions. These retention intervals were 5, 10, 15, 20 and 25 sec. Five consonant trigrams constructed from the set of letters sharing the vowel sound “e” were used for all conditions. Recall on test 5 was a direct function of prior-item retention interval. The data indicate, therefore, that the availability of prior items for proactive interference is an inverse function of prior-item retention interval.

Tracheostomy remains the primary method of treatment of acute airway obstruction due to malignant invasion and compression of the trachea. However, the development of tracheal stents has provided an alternative effective treatment modality. This case report and literature review highlights the benefits of intra-luminal stenting, including resolution of distressing obstructive symptoms, and subsequent improvement in quality of life.

Mini rev Article RADICAL PROSTATECTOMY WITH POSITIVE SURGICAL MARGINS THURAIRAJA et al.

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