We study vectors which undergo maximum or minimum rotation by a matrix on the field of real numbers. The cosine of the angle between a maximally rotated vector and its image under the matrix is called the cosine or antieigenvalue of the matrix and has important applications in numerical methods. Using Lagrange multiplier technique, we obtain systems of nonlinear equations which represent these ...

[Purpose] The purpose of this study was to ascertain the kinematic characteristics on a horizontal plane, including knee joint rotation, when walking with a tandem gait on a sine wave walkway. [Subjects and Methods] Eighteen healthy adults were enrolled as subjects in this study. They walked with a tandem gait on a sine wave walkway. A three-dimensional motion analysis system was used to record...

this paper presents results of hydro-chemical processes controlling groundwater chemical composition, using an integrated application of hierarchical cluster analysis and factor analysis of a major ion data set of groundwater from mighan playa aquifer. cluster analysis classified samples into four clusters(a, b, c and d) according to their dominant chemical composition: cluster a (dominant comp...

genetic  diversity  is  the  basis  of  the  natural  evolution  of  plant  breeding  and  biological  system  are  important  components  of  sustainability. the aim of this study was to evaluate 116 genotypes of triticum turgidum from seven countries in terms of morphological traits. the results showed that high significant differences among the genotypes. the correlation between grain yield ...

BACKGROUND The SF-36 and SF-12 summary scores were derived using an uncorrelated (orthogonal) factor solution. We estimate SF-36 and SF-12 summary scores using a correlated (oblique) physical and mental health factor model. METHODS We administered the SF-36 to 7,093 patients who received medical care from an independent association of 48 physician groups in the western United States. Correlat...

in order to study the correlation between morphophenological and quantitative traits with yield and to determine the most important traits for yield, 600 ecotypes of mung bean were evaluated in normal and limited irrigation conditions through augmented design. computation of correlation coefficients showed that in two conditions, number of pods per plant, harvest index and biological yield had ...

Objective: to validate an instrument that assesses the level of knowledge nursing staff in caring for patients with CVD. Method: Longitudinal-process study 115 professionals. Non-probabilistic sampling convenience. The was validated five moments: 1) creation construct, 2) validation by 15 expert judges, 3) pilot test instrument, 4) internal consistency Cronbach's Alpha and 5) factor analysis ro...

An atom-surface interaction was detected by studying atom diffraction from a rotated material grating. A phasor diagram similar to the Cornu spiral was developed to explain why there are no missing orders in atom diffraction from material gratings. We also show that atom-surface interactions combined with rotated grating structures can produce asymmetric, i.e., blazed, diffraction patterns. Our...

We investigate the uplink non-orthogonal multiple access (NOMA)-based Internet-of-Things (IoT) networks, where each IoT device (station: STA) equipped with a single antenna exploits constellation-rotated space-time line code (CR-STLC) to send signals an point (AP) two receive antennas. The AP d...

Abstract A proper description of ocean-atmosphere interactions is key for a correct understanding climate evolution. The interplay among the different variables acting over complex, often leading to correlations across long spatial distances (teleconnections). In some occasions, those teleconnections occur with quite significant temporal shifts that are fundamental underlying phenomena but whic...