Recently, data of multimedia performs an exponentially blowing tendency, saturating daily life of humans. Various modalities of data, includes images, texts and video, plays important role in different aspects and has wide. However, the key problem of utilizing data of large scale is cost of processing and massive storage. Therefore, for efficient communications and for economical storage requires effective techniques of data compression to reduce the volume of data. Speech coding is a main problem in the area of digital speech processing. The process of converting the voice signals into a more compressed form is speech coding. In this work, we demonstrate that a DCT with a chaotic system combined with run-length coding can be utilized to implement speech coding of very low bit-rate with high reconstruction quality. Experimental result show that compression ratio is about 13% when implemented on Librispeech dataset.
Background: As our society ages, the incidence of chronic diseases increases, and so does drug use and polypharmacy. Aim: To evaluate the medication use behaviors of selected elderly patients who lived in Baghdad city. Methods: This cross-sectional study included 225 subjects aged >60 years who lived in Baghdad city and consumed chronically prescribed medications. Data were collected using a survey form, and the survey was conducted through face-to-face interviews. The data are presented as numbers, percentages, and averages. Results: The majority were treated through polypharmacy, using various drugs. The most commonly used drugs included those used to treat cardiovascular diseases, DM, and dyslipidemia. 74.6% did not know about the side effects of the drugs they used, and 55.6% did not read the product information leaflet (PIL) of the drugs. Also, 70.7% said that the health care personnel did not educate them about their drugs. Of the elderly who were informed about their drugs, 128 obtained the information from the physician and 91 from the pharmacist. Conclusion: The majority of the elderly subjects used more than one drug, and the main drug class used was the cardiovascular agents. they are unaware of the side effects of the prescribed agents.
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