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Relationship between Changes in Functional Capacity and Anthropometric, Clinical and Psychological Indicators in Cardiac Patients Participating in Cardiac Rehabilitation Program

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Health 2021年第11期13卷 1303-1313页

作者： hadavi mohammad mahdi Sadeghi Masoumeh Kheiry mohammad Ali Hamidreza Roohafza Rafati Fard mohammad Cardiac Rehabilitation Research Center Cardiovascular Research Institute Isfahan University of Medical Sciences Isfahan Iran Iranian Hospital Dubai UAE Health Science/Exercise Physiology Clinical Research Development Unit Hajar Hospital Shahrekord University of Medical Sciences Shahrekord Iran

Background: Cardiac rehabilitation (CR) is a multifaceted treatment that can increase the survival and quality of life of cardiac patients by increasing their functional capacity (FC). In this study, we aimed to investigate the FC changes of cardiac patients after the CR program in different subgroups in terms of anthropometric, clinical, and psychological indices. Materials and Methods: This is a descriptive retrospective study that has been derived from the results of a Cohort study at the Rehabilitation Research Center of the Cardiovascular Research Institute of Isfahan (Iran), from 2006 to 2017. In this study, the dependent variable is functional capacity changes based on Mets obtained in exercise testing at the beginning and end of the CR program. Independent variables included age, sex, dyslipidemia, diabetes, smoking, and Body mass index, type of intervention, depression, and EF. Results: The sample size is 1250 cardiovascular patients, of which 917 (73.5%) are male and 331 (26.5%) are female. Functional capacity after the CR program significantly increased in all age, gender, body mass index, hypertension, hyperlipidemia, diabetes, smoking, depression, EF, and type of operation performed (angioplasty or open-heart surgery) subgroups, (p Conclusion: The results of this study show the importance of rehabilitation programs in the secondary prevention of cardiovascular disease in different subgroups and factors such as gender, level of primary depression, and EF less than 35 are the most important factors affecting functional capacity increase after CR program in heart patients.

关键词： Functional Capacity Heart Patients Cardiac Rehabilitation

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A New Method of Voiced/Unvoiced Classification Based on Clustering

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Journal of Signal and Information Processing 2011年第4期2卷 336-347页

作者： Mojtaba Radmard mahdi hadavi mohammad mahdi Nayebi Department of Electrical Engineering Sharif University of Technology Tehran Iran

In this paper, a new method for making v/uv decision is developed which uses a multi-feature v/uv classification algorithm based on the analysis of cepstral peak, zero crossing rate, and autocorrelation function (ACF) peak of short-time segments of the speech signal by using some clustering methods. This v/uv classifier achieved excellent results for identification of voiced and unvoiced segments of speech.

关键词： Speech Voiced Unvoiced Clustering Cepstrum Autocorrelation Zero crossing

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Nannostratigraphy and Palaeoecology of the Uppermost Mozduran Formation in the Jozak Section in West Kopet-Dagh (NE Iran)

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International Journal of Geosciences 2014年第1期5卷 12-19页

作者： mohammad Anvar Moheghy Fatemeh hadavi Department of Geology Faculty of Science Ferdowsi University of Mashhad Mashhad Iran

This paper discusses the biostratigraphy and palaeoecology of calcareous nannofossils of the uppermost Mozduran Formation in the Jozak section in west Kopet-Dagh basin. The Mozduran Formation consists of white to grey Limestone. In the studied sections, samples are taken and prepared with smear slides. In the Jozak section, 17 species have been determined. Based on nannoplanktons and as a result of biostratigraphy studies, the nannofossil standard zones (CC4) are identified. According to this zone, the age of the studied thickness is Early Hauterivian in this section in west Kopet-Dagh basin. The presence of warm water indicators (Nannoconus, Watznaueria, Lithraphidites) suggests warm surface water conditions in the studied thickness. In the Jozak section based on Nannoconus spp., low fertility conditions are suggested. The studied area is deposited in low to middle latitudes and shallow marine environments.

关键词： Nannostratigraphy Paleoecology Mozduran Shurijeh Kopet-Dagh Iran

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Investigation of the Boundary between Abderaz and Kalat Formations Based on Calcareous Nannofossils in West Kopet-Dagh (NE IRAN)

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Open Journal of Geology 2013年第3期3卷 178-186页

作者： mohammad Anvar Moheghy Fatemeh hadavi Behname Rahimi Department of Geology Faculty of Science Ferdowsi University of Mashhad Mashhad Iran

The biostratigraphy of calcareous nannofossils of the Cretaceous is investigated in the boundary between Abderaz and Kalat Formations through the record of species richness, diversity and distribution patterns in the west Kopet-Dagh region. The Kalat Formation comprising of coarse-grained detritus limestone with subordinate sandstone intercalations and the Abderaz Formation mainly consists of limestone, Shale and Limy marl. Nannofossils of this boundary in each of studied sections are listed and figured. 21 species in?Ghalehzoo section, 29 species in Sheikh section and 19 species in Jozak section have been determined. Boistratigraphy based on calcareous nannofossil allow the identification of nannofossil standard zones CC21 and CC26 in all of sections, According to these zones in all of sections, the age of the studied thickness is Early Late Campanian-Late Late Maastrichtian in these sections.

关键词： Nannofossils Biostratigraphy Abderaz Kalat Iran Kopet Dagh

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The Size Effect of TiO<sub>2</sub>Anatase Nanoparticles on Photon Correlation Spectroscopy

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Soft Nanoscience Letters 2012年第4期2卷 77-80页

作者： mohammad Saeed hadavi Soheil Sharifi Somaye Jafari Department of Physics University of Sistan and Baluchestan Zahedan Iran

In this work, the anataze phase of TiO2 nanoparticles was prepared by sol gel method. We changed time and temperature of calcinations to change size and property of nanoparticles. The Transmission Electron Microscopy and Scanning Electron Microscopy were used for characterization of the TiO2 nanoparticles. The nanoparticle size was increased with time and temperature. We found that the average size of samples was changed from 30 to 46 nm with changing temperature from 450℃ to 650℃ and at fixed temperature (450℃) with changing of calcination times from 1 to 3 hours, the size was changed from 30 to 58 nm. For study the dynamic of nanoparticles, the TiO2 nanoparticles were added to water with 2.4 weights present of particles to the water. The different size of TiO2 nanoparticles was studied with photon correlation spectroscopy. The relaxation time was increased with increasing of nanoparticle size and so diffusion coefficient was decreased.

关键词： TiO2 Nano-Particle Light Scattering Spectroscopy SEM

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