The relations of decadal to multidecadal (D2M) variability in global sea-surface temperatures (SSTs) with D2M variability in the flow of the Upper Colorado River Basin (UCRB) are examined for the years 19062003. Results indicate that D2M variability of SSTs in the North Atlantic, North Pacific, tropical Pacific, and Indian Oceans is associated with D2M variability of the UCRB. A principal compo...

River Hindon is an important river catering the demand of highly populated rural and industrial cluster of western Uttar Pradesh, India. Water quality of river Hindon is deteriorating at an alarming rate due to various industrial, municipal and agricultural activities. The present study aimed at identifying the pollution sources and quantifying the degree to which these sources are responsible ...

Background: Freezing of gait (FOG) is a common, poorly understood, parkinsonian symptom interfering with daily functioning and quality of life. Assessment of FOG is complex because of the episodic nature of this symptom, and the influence of mental and environmental factors on it. Objective: To design a self-reportable reliable questionnaire for FOG. Method: A questionnaire consisting of 16 ite...

Missing values are a common problem faced in the analysis of time-series data. Many SAS® time-series procedures (PROC ARIMA, PROC VARMAX, etc.) are intolerant of missing values, particularly when these missing values are embedded in the time-series, rather than occurring at the beginning or end of the series. PROC EXPAND is designed to convert time series from one sampling interval or frequency...

The large size of the hyperspectral datasets that are produced with modern mass spectrometric imaging techniques makes it difficult to analyze he results. Unsupervised statistical techniques are needed to extract relevant information from these datasets and reduce the data into a surveyable verview. Multivariate statistics are commonly used for this purpose. Computational power and computer mem...

Generalized Linear Latent Variable Models (GLLVM), as de ned in Bartholomew and Knott (1999) enable modelling of relationships between manifest and latent variables. They extend structural equation modelling techniques, which are powerful tools in the social sciences. However, because of the complexity of the log-likelihood function of a GLLVM, an approximation such as numerical integration mus...

Background. The PAS-ADD Checklist is designed to screen for likely mental health problems in people with intellectual disabilities (ID). The specificity of recommended subscales derived from diagnostic criteria is unclear; this paper investigates empirically derived subscales. Methods. Informants who had known service users for a median 24 months completed the PAS-ADD Checklist on 1155 adults w...

In this study, the spatial patterns of relative air humidity and its relation to urban, geographical and meteorological factors in the city of Zaragoza (Spain) is discussed. We created a relative humidity database by means of 32 urban transects. Data were taken on different days and with different weather types. This data set was used to map the mean spatial distribution of urban dry island (UD...