the degradation rate of mediterranean steppes, especially in north africa is 1% per year, and this considered as high a rate of degradation. this study conducted in 2014 in the south slope of the al-jabal al-akhdar, northeast libya to quantify the vegetation recovery rate and assess selected vegetation indices (vis) for mapping rangelands degradation status using remote sensing technology. thro...

This study attempts to evaluate Malaysia’s stock performance before and during COVID-19 across all sectors by using the Sharpe ratio Sortino with risk measured standard deviation. We develop an algorithm for selection construct portfolio investment. In our study, we apply ratio, Treynor Jensen’s alpha identify optimal portfolio. The result shows that based on Top 20 from stocks is superior 3 ea...

Performance measurement is an integral part of investment analysis and risk management. The goal of performance measurement is to build a ranking of different investments on the basis of risk-adjusted returns in order to evaluate the relative success of these investments. The Sharpe Ratio is the best-known measure of this type. It considers the first two moments of the return distribution (expe...

investing on growth stocks and value stocks has represented one of the research topics on strategies creating excess return. in this paper, which focuses on companies listed in tehran stock exchange, companies are categorized into growth and value based on certain measures and then their performances are studied. in addition to individual ratios used in a large volume of researches, combined me...

introduction: periodontitis is an inflammatory disease, for which, scaling and root planning (srp) is the common approach for non-surgical control of inflammation. using lasers is another approach in the first phase of periodontal treatment for control of inflammation. diode laser has some beneficial effects such as acceleration of wound healing, promotion of angiogenesis and augmentation of gr...

The degradation rate of Mediterranean steppes, especially in North Africa is 1% per year, and this considered a high  rate of degradation. This study conducted in 2014 in the south slope of the Al-Jabal Al-Akhdar, northeast Libya to quantify the vegetation recovery rate and assess selected Vegetation Indices (VIs) for mapping rangelands degradation status using remote sensing technology. Throug...

Despite a significant increase in global clean energy investments, as part of the decarbonization process, it remains insufficient to meet demand for services sustainable manner. This study investigates performance equity with focus on environmental markets, using monthly index data from 31 August 2009 30 December 2022. The main contributions our are (i) assessment trading strategies based tren...

The SHARPE package is now 1 3 y ears old. A w ell known package in the eld of reliability and performability, SHARPE is used in universities as well as in companies. Many important c hanges have been made during these years to improve the satisfaction of our users. Recently several new algorithms have been added and a Graphical User Interface has been implemented. This paper presents the curren...