A review of: “Human Motor Actions: Bernstein Reassessed.” Edited by H. T. A. WHITING. (Oxford: North-Holland, 1984.) [Pp. xxxv + 633.] ISBN 0-444-86813-5.

The physical work performance of eight fit fire fighters wearing fire brigade uniforms and wearing breathing apparatus was assessed. They were tested in a climatic chamber set at temperatures of 15 and 45°C respectively. The test was performed with and without fire fighting equipment. The subjects walked on a treadmill at a speed of 3.5km/h, which produce a workload equivalent of 20% of the subjects' maximal oxygen uptake without equipment, and 30% with equipment. The test lasted for 60 min. Heart rate, oxygen uptake, skin and deep body temperatures were measured during the test. The subjects estimated perceived physical exertion and perceived temperature. Wearing fire fighting equipment increased the oxygen uptake by 0.4 1min^-1. Heart rate at the end of the experiments reached near-maximum levels when the temperature was 45°C with equipment, and deep body temperature increased to an average of 38.7°C. The subjects' ratings of perceived exertion were highly correlated to heart rate. The loading induced by heat and protective equipment reduced the ability to perform strenuous work. The combination of thick clothing and heavy breathing apparatus was found to have a significant limiting effect on the endurance of fire fighters.     

A review of: “Man and his Thermal Environment” By R. P. CLARK and O. G. EDHOLM. (London: Arnold, 1985.) [Pp.288.] £39·95. ISBN 0-7131-4445-9.

Abstract

A computer-video interactive system is described that enables a trained observer to systematically record and view the behaviour of athletes performing within a team-sport competition. This system is designed to allow the recall of selected video instances from previously recorded athletic behaviours. In order to accomplish this form of analysis, a computerized recording system and a video cassette recording machine were combined using specialized hardware and software. A system for the analysis of field hockey is used to exemplify how the interaction of computers and video recorders can aid in the sport analysis process.     

A review of: “Posture. Sitting,standing, chair design and exercise.” By D. ZACHARKOW. (Springfield,IL: Charles C. Thomas, 1988.) [Pp. xxi + 433.] US$49·75. ISBN 0-398-05418-5.

Drivers experiencing rush hour congestion were interviewed using cellular telephones to study stress and coping responses. Measures were taken of each driver's predisposition to stress (trait stress) as well as their reactions to the experience of either low or high traffic congestion (state stress). Two interviews were conducted during the trip when drivers experienced both low and high congestion conditions. Although state stress was greatest for all drivers experiencing the high congestion condition, a trait X situation interaction was obtained, indicating that stress levels were highest for high trait stress drivers experiencing the congested roadway. In terms of trait coping behaviours, participants indicated a preference for direct over indirect behaviours. A greater variety of direct and indirect behaviours were reported in high congestion. Reports of aggressive behaviours showed the greatest increase from low to high congestion. Comments on the use of cellular telephones in methodology are offered.     

BD: business.deleted

“我Kao!”,胡一郎看到新的工作任务,差点没把嘴里的茶全喷了。“BD部门近期工作重点:与电信部门洽谈向手机用户提供奥运快讯短信息服务事宜。”胡一郎在脑子里飞快地计算:一条短信息中国移动才向用户收费一毛,公司最多能挣几分钱?My God!原来“最清晰的可盈利电子商务模式”就是挣这点没影儿的钱? 做了这几个月的BD,胡一郎觉得自己彻底晕菜。过去做销售,目的明确,实打实地挣钱;现在可好,找谁?说什么?谈得成谈不成?似乎都不重要,谈成的项目保不齐也会被公司cancel,真不知道自己的工作究竟有什么意义。     

品牌:InternetNO.1

国内的Internet市场通过媒体长达三年的炒作和资本市场的新近认可,Internet次新板块才从接入费用的坎坷经历发展到拥有更多的想象空间阶段。但是抛弃以往拜钱过日子的ICP,反而象刚脱下军装后的茫然,让用户出现视觉障碍。ICP缺乏品牌效应的支持,而在打开的市场里显得单薄。因而在现阶段,品牌,将是Internet市场运作发展的