This paper studies a multi-criteria optimization problem which appears in the context of booking chemotherapy appointments. The main feature of the model under study is the requirement to book for each patient multiple appointments which should follow a pre-speci ed multi-day pattern. Each appointment involves several nurse activities which should also follow a pre-speci ed intra-day pattern. T...

The aim of this study was to evaluate the morbidity and mortality in patients with operable stage II and III rectal cancers within one or two months after surgery, who has been treated pre-operatively with short course radiotherapy. Twenty-eight patients with rectal adenocarcinoma, consecutively referred to the Cancer Institute of Imam Khomeini Hospital from March 2009 to March 2010, were selec...

In two experiments, participants were required to identify a target stimulus by means of same/different judgments. Previously, they had received simultaneous or blocked pre-exposures to the target and a similar stimulus. Participants' ability to judge pre-exposed stimuli as different was better after simultaneous than after blocked pre-exposures. However, the benefit of the simultaneous schedul...

The study was conducted to optimize lighting schedule for pre-pubertal (12 to 22 weeks) Chinese native breed Pengxian yellow pullet. A total of 414 healthy pullets (10 weeks), with similar body weight were randomly distributed into three groups (n = 138) and housed in individual cages for up to 12 weeks of age in light controlled rooms and provided normal lighting schedule (10L:14D). At 12 to 1...

normal 0 false false false en-us x-none ar-sa microsoftinternetexplorer4 background: after conducting a study on shift work and its related health problems in a petrochemical company and recommending a new shift system, the company changed its shift schedule from 12-hour to 8-hour pattern. after a year of implementing this new system, the present study was carried out to evaluate the effects of...

Each year at the beginning of a new academic semester, most advisors face a very common and particularly tedious and time consuming problem: deciding for each student what course schedule would be ideal for the following semester so that the student would graduate in the fastest possible time and also have his / her specific preferences and pre-requisites

While traffic signals are necessary to safely control competing flows of traffic, they inevitably enforce a stop-and-go movement pattern that increases fuel consumption, reduces traffic flow and causes traffic jams. These side effects can be alleviated by providing drivers and their onboard computational devices (e.g., vehicle computer, smartphone) with information about the schedule of the tra...