人々が健康で安心して働ける労働環境を目指して97年…

労働科学 91巻5/6号

印刷

河村智行, 石若仁, 石沢健人, 高野研一
根本原因分析を活用したプロジェクトマネージャトレーニングの提案
労働科学,91(5/6),47~61,(2015)
 日本の情報システム開発プロジェクトは約70%が失敗と言われ,成功率の向上が求められている。成否に影響を与える要因の中でも,プロジェクトマネジメントが大きな影響を与えていると言われ,プロジェクトマネージャ(PM)の能力の向上が望まれている。本研究は,失敗の再発防止に求められるPMの能力の育成を目的として,根本原因分析を活用したトレーニングを設計し,試行・評価を行った。IT(Information Technology)ベンダに勤務する23人のPMにトレーニングを試行し,トレーニング受講者へのアンケート,および聞き取り調査によって評価を行ったところ,失敗の再発防止に求められる能力の向上に一定の効果があることが確認された。
キーワード:情報システム;失敗の再発防止;プロジェクトマネージャ育成;根本原因分析;トレーニング評価

Tomoyuki KAWAMURA, Jin ISHIWAKA, Kento ISHIZAWA, Kenichi TAKANO
Proposal of project manager training that utilizes root cause analysis
THE JOURNAL OF SCIENCE OF LABOUR, 91 (5/6), 47-61, (2015)
Researchers have found that approximately 70% of the information systems development projects in Japan have failed, thus increasing the demand for solutions that will increase project success rates. Project management is said to be one of the most important factors affecting the project's outcome. Therefore, enhancing the project manager's skill is required. This study aims to develop the project manager's skill to prevent the recurrence of a problem due to factors that the projects have experienced in the past; this is done by using a training program that utilizes root cause analysis. The training program was applied to 23 project managers in an IT vendor in Japan, and the program was evaluated based on a questionnaire and interview of the trainees. As a result of the evaluation, the training program was indicated to be effective in developing the project manager's skill for preventing the recurrence of a problem due to factors that the projects have experienced in the past.
Key Words: Information systems; Prevention of recurrence of failure; Project manager training; Root cause analysis; Training evaluation

佐々木司, 山野優子, 松元俊
看護師が16時間夜勤中の3つの異なる時刻にとる仮眠の尿中6-スルファトキシメラトニン分泌量
労働科学,91(5/6),62~71,(2015)
 16時間2交代で勤務する看護師134名を対象にして,夜勤時の3つの時刻帯に取られる仮眠中の尿中6-スルファトキシメラトニン分泌量(aMT6s)を比較した。また統制条件として日勤-日勤間の夜間睡眠尿も採取した。仮眠時刻条件の尿は,仮眠を交代で取っていた前半(23:15-01:22),中半(01:20-03:23),後半(03:26-05:21)に分けて分析した。その結果,夜間睡眠中のaMT6s分泌量は,夜勤時の仮眠中より有意に多かった(p=0.007)。しかしながら,仮眠時刻条件間のaMT6s分泌量や交互作用に有意差は示されなかった。そこで仮眠を仮眠時間,仮眠開始時刻を考慮して分析したが,いずれも有意差が示されなかった。これらのことから,一般に16時間夜勤を行っている看護師が取る120分の仮眠のaMT6s分泌量は,夜間睡眠に及ばないものの,どの時刻帯に取っても変わらないことが明らかになった。
キーワード:看護師;夜勤中の仮眠;尿中6-スルファトキシメラトニン;16時間夜勤

Tsukasa SASAKI, Yuko YAMANO, Shun MATSUMOTO
Levels of urinary 6-sulphatoximelatonin on three different timings of planned naps taken by hospital nurses during double 8-hour night shifts
THE JOURNAL OF SCIENCE OF LABOUR, 91 (5/6), 62-71, (2015)
We investigated the relationship between three different timings of nap and concentration of urinary 6-sulphatoximelatonin (aMT6s) for 134 nurses (125 women and 9 men; 34.5 ± 9.3 years old ± SD) assigned to double 8-hour night shifts. Three nurses worked for each night shift and took their naps of around 2 hours in succession, with the first nap (23:15 - 01:22), the second nap (01:20 - 03:23) and the third nap (03:26 - 05:21). The urinary aMT6s collected during the nighttime sleep after a day shift (control condition) and during the nap at night shift (experimental condition) were analyzed by Dr.Minami's procedure (2009). The results showed that levels of urinary aMT6s during the nighttime sleep after a day shift were significantly higher than during the nap in the night shifts (p = 0.007). However, there were no significant differences in levels of aMT6s in terms of the nap timings and interactions. Furthermore, no significant differences were obtained, even if analyzed by the duration of nap periods and the start time of naps, respectively. Therefore, we conclude that whenever hospital nurses have taken a nap during double 8-hour night shifts, urinary aMT6s will be at similar levels and also fall short of the levels during a nighttime sleep after a day shift.
Key Words: Nurse; Nocturnal nap; Urinary 6-sulphatoximelatonin (aMT6s); Double 8-hour night shifts