BACKGROUND AND PURPOSE Alzheimer disease is the most common neurodegenerative disorder with dementia, and a practical and economic biomarker for diagnosis of Alzheimer disease is needed. Three-dimensional arterial spin-labeling, with its high signal-to-noise ratio, enables measurement of cerebral blood flow precisely without any extrinsic tracers. We evaluated the performance of 3D arterial spi...

The search for species associations is one of the classical problems of community ecology. This article proposes to use Kendall’s coefficient of concordance (W ) to identify groups of significantly associated species in field survey data. An overall test of independence of all species is first carried out. If the null hypothesis is rejected, one looks for groups of correlated species and, withi...

While in an earlier commentary (Honing & Ladinig, 2008) we stressed the potential of Web-delivered experiments for music perception research, the ongoing discussion on Web-based versus lab-based studies seems to circle around issues of method and control (Mehler, 1999; Kendall, 2008). We agree with the importance of these issues from a methodological point of view. However, we continue to stres...

Abstract. Monitoring drought and mastering the laws of propagation are basis for regional prevention resistance. Multivariate indicators considering meteorological, agricultural hydrological information may fully describe conditions. However, series variables in cold arid regions that too short or missing make it difficult to monitor drought. This paper proposed a method combining Soil Water As...

In the last decade, many malaria-endemic countries, like Zambia, have achieved significant reductions in malaria incidence among children <5 years old but face ongoing challenges achieving similar progress against older age groups. parts of changing climatic and environmental factors are those suspectedly behind high incidence. Changes variations these potentially interfere with intervention pr...

The weather derivatives market as an instrument of effective risk management is still not flexible enough for many industries. water supply and sewerage industry sensitive primarily to heavy rainfalls periods high low temperatures: days with rainfall may cause a hydraulic overload the systems; on hot days, demand increases significantly; frost pipe failure grows. work aimed summarise methods pr...

from the viewpoint of many experts in climatology, climate fluctuation is considered a natural phenomenon repeated in the course of a long-term cycle. this study will analyze the elements of temperature, precipitation and evaporation in the northern mountains of the karkas range in terms of seasonal and annual cycles, using a non-parametric test of man-kendall during two time periods from 1980 ...