Adverse events are generally tabulated and listed in statistical reports in randomized clinical trials. This paper introduces how to apply statistical methods to assess adverse events using SAS. In addition to the crude percentage (rate), adverse events are also adjusted by exposure time or multiple repeat. The paper also introduces the commonly used chi-square test and Fisher‟s exact test, and...

Understanding the occurrence of natural disasters in regions where is high very important, and it known that associated with intense rains a source research different locations around globe, being important not only for increasing accuracy weather forecasting models, but information civil defense, lives can be saved. The increase related to extreme rainfalls has become problem large urban cente...

Meteorological drought is among the key climate-related risks affecting Ethiopia. It indicates a shortage of precipitation over long period, usually for season or year. This study uses copula theory to analyze meteorological in upper Tekeze river basin, Northern part analysis using provides promising opportunity deal with such advance and improve sectoral resilience. In this study, long-year (1...

Better understanding of the spatiotemporal characteristics precipitation is essential in developing best management practices for ecological restoration and soil erosion control on China’s Loess Plateau, an arid semiarid region with severe erosion. This study aimed to explore trends using long-term data from 1957 2018 100 national standard meteorological stations across Plateau. The nonparametr...

Drop plate technique has a priority and preference compared with the spread plate procedure, because of less time, quantity of media, effort requirement, little incubator space, and less labor intensive. The objective of this research was to compare the accuracy and fidelity of drop plate method vs. spread plate method by parametric and nonparametric statistical tests. For bacterial enumeration...

In the context of climate change, this article tries to answer question whether a correlation exists between precipitation and temperature series at regional scale in Dobrogea, Romania. Six sets time are used for aim, each them containing ten series—precipitation temperatures—recorded same period hydro-meteorological stations. The existence monotonic trend was first assessed individual series. ...