A duty of quality.

A Retransmission-Enhanced Duty-Cycle MAC Protocol Based on the Channel Quality for Wireless Sensor Networks

Duty-cycle MAC protocols have been proposed for wireless sensor networks (WSNs) to reduce the energy consumed by idle listening, but they introduce significant end-to-end delivery latency. Several works have attempted to mitigate this latency, but they still have a problem on handling the packet loss. The quality of the wireless channel in WSNs is quite bad, so packets are frequently lost. In t...

Using the Quality-Time Tradeo in Local Optimization

The paper introduces duty measure for optimization methods. Duty expresses the relationship between the quality of the result and the time required to obtain the result. The usefulness of the duty measure is demonstrated on a case study involving a local optimization of a large traveling salesman problem. Using duty, a deterministic method and a probabilistic method are combined into a hybrid m...

Night duty and decreased brain activity of medical residents: a wearable optical topography study

BACKGROUND Overwork, fatigue, and sleep deprivation due to night duty are likely to be detrimental to the performance of medical residents and can consequently affect patient safety. OBJECTIVE The aim of this study was to determine the possibility of deterioration of cerebral function of sleep-deprived, fatigued residents using neuroimaging techniques. DESIGN Six medical residents were inst...

نقد و ارزیابی وظیفه‌گرایی

Duty-based or deontological ethics is among much discussed, major schools of thought in philosophy of medical ethics that can provide additional solutions to various ethical challenges in modern medicine. Duty-based ethics generally refers to a set of principles according to which the criteria for determining whether an action is right or wrong is the action itself and its properties, regardles...

Discrimination of Power Quality Distorted Signals Based on Time-frequency Analysis and Probabilistic Neural Network

Recognition and classification of Power Quality Distorted Signals (PQDSs) in power systems is an essential duty. One of the noteworthy issues in Power Quality Analysis (PQA) is identification of distorted signals using an efficient scheme. This paper recommends a Time–Frequency Analysis (TFA), for extracting features, so-called "hybrid approach", using incorporation of Multi Resolution Analysis...

Securing Safe Plasma for Fractionation the Duty of any Country