نتایج جستجو برای: year validation period 1992
تعداد نتایج: 1198356 فیلتر نتایج به سال:
background: universities play an important role in training people to meet the community demands for skilled manpower. furthermore, it is a fact known that universities do most of the research projects in iran and in most countries through out the world. it is, therefore, important to know about teaching and research productivity in universities and to determine this productivity. theoretically...
In this research, we used the support vector machine (SVM), support vector machine combine with wavelet transform (W-SVM), ARMAX and ARIMA models to predict the monthly values of precipitation. The study considers monthly time series data for precipitation stations located in Hamedan province during a 25-year period (1998-2016). The 25-year simulation period was divided into 17 years for t...
Objectives: Asthma, a public health problem, has variable global mortality rates. In Chile, there are no studies to report on the national situation. This study analyzes trend in Chilean adults over period of 26 years. Methods: Using data from Department Health Sta- tistics and Information National Institute Statistics, asthma rates 1992-2017 were calculated people > 15 years-old. To avoid impa...
In 1992, the Heritage Institute was created in renewed Russia, and became first specially organized scientific institute country to study problems of cultural natural heritage. The article considers main tasks institute, its structure directions research., as well results work leading achievements for 20-year period development.
One of the most important Limitation General Circulation Models , Large scale are being simulation of climatic variables. So should With Various method are downscaled, The ability to have identified a study area. Choose a suitable GCM model for the study area Very important role In the simulation parameter (precipitation) is intended for future. In this research of CMIP5 Models Contains BCC-CS...
OBJECTIVE To describe according to gender the trend in mortality attributed to myocardial infarction (MI) in the population of Salvador, Bahia between 1981 and 1996. METHODS This study was on mortality due to MI estimates by period and gender of the city of Salvador, Bahia. Data from 1981 to 1996 were stratified by quadrienia, and the percentage reduction in death rate due to MI relative to t...
OBJECTIVE To determine the impact of new treatment modalities, including high-frequency oscillatory ventilation (HFOV) and inhaled nitric oxide (INO), on extracorporeal membrane oxygenation (ECMO) use and outcome of neonatal patients with persistent pulmonary hypertension of the newborn. STUDY DESIGN We reviewed the medical records of neonatal patients meeting established ECMO criteria from 1...
In recent decades, water scarcity has become a global problem due to the growth of the world's population as well as the increase in per capita water consumption. Therefore, planning and managing water resources to prevent potential risks such as floods and drought in the future is one of the important measures of water resources management. One of the important measures to avoid potential risk...
The research was aimed at reconstructing the media image of feminism which presented in most popular Polish magazines dedicated to women years 1989–1992. time period corresponded first stage system transformation Poland. It initiated by year Round Table Talks were held and it ended with adoption so-called “Small Constitution” 1992. There three detailed questions formulated: 1. How defined women...
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