Abstract Drought is a serious threat to agriculture in Ethiopia. This study examined the spatiotemporal variability of agricultural drought and its association with climatic variables Upper Awash basin. Mann–Kendall (MK) trend test was employed examine while Sen’s slop estimator pixel-based linear regression model were used analyze magnitude changes. The between evaluated by Pearson correlation...

drought is a major problematic phenomenon mostly for semi-arid areas of iran. during drought periods, reduction in vegetation levels causes such problems as soil erosion, surface runoff, flood risk, etc. therefore, the assessment of drought effects on plant covers is the most important issue. this research was conducted in 2015 using the extracted vegetation indices from moderate resolution ima...

Vascular dementia (VaD) is a heterogeneous disorder resulting from various cerebrovascular diseases (CVD) causing cognitive impairment that reflects severity and location of damage. Epidemiological studies suggest VaD is the second commonest cause of dementia, but autopsy series report that pure VaD is infrequent, while combined CVD and Alzheimer's Disease(AD) is likely the commonest pathologic...

BACKGROUND Vascular cognitive impairment (VCI) is a spectrum of cognitive impairment caused by various chronic diseases including aging, hypertension, and diabetes mellitus. Oxidative and inflammatory reactions induced by chronic cerebral hypoperfusion (CHP) are believed to cause VCI. Melatonin is reported to possess anti-oxidation and anti-inflammation effects. This study was designed to inves...

Objective: To test the hypotheses that reading comprehension difficulties of adolescent students with ADHD: 1) are related not so much to weak verbal abilities or weak basic reading skills, as to impairments of working memory and processing speed characteristic of ADHD; and 2) that extended time on a test of reading comprehension would yield significantly higher reading comprehension scores tha...

BACKGROUND cerebral small vessel disease (SVD) is the most common cause of vascular cognitive impairment (VCI). Despite this, there is a paucity of rapid simple screening tools to identify cognitive impairment in SVD and differentiate it from other common dementia types. OBJECTIVE to validate a new screening test for cognitive impairment in SVD, the Brief Memory and Executive Test (BMET) batt...

Climate change has proved to be a threat food security the world over. Using temperature and precipitation data, this paper examines differential effects climate on different land uses in Luvuvhu river catchment South Africa. The Normalised Difference Vegetation Index (NDVI) Condition (VCI), which were calculated from Landsat images, Standardised Precipitation (SPI) for sample of years between ...

Climate extreme like drought significantly affect the quality of environment and threaten food availability in developing countries Ethiopia. In this study, satellite-based agricultural assessments were conducted 0main crop growing season (June to September) using Landsat 8 images five periods (2015 2019) Rift Valley Region To assess we used Normalized Difference Vegetation Index (NDVI), Land S...

Abstract Background Geographic Information System (GIS) and Remote Sensing play an important role for near real time monitoring of drought condition over large areas. The aim this study was to assess spatial temporal variation agricultural meteorological using image eMODIS NDVI based vegetation index (VCI) standard precipitation (SPI) from the year 2000 2016. To validate strength indices correl...