OBJECTIVE To evaluate the convergent validity of the PAQ-A for assessing physical activity (PA) in overweight (including obese) adolescents. MATERIAL AND METHOD Two hundred and three Spanish adolescents (96 females), aged 13-17 years, were selected for this study. Levels of PA were self-reported by 3-day activity diary, activity rating and PAQ-A. Adolescents wore the ActiGraph accelerometer f...

Due to the increasing prevalence of high bit depth and YCbCr 4:4:4 video data, it is desirable to develop a JND-based visually lossless coding technique which can account for high bit depth 4:4:4 data in addition to standard 8-bit precision chroma subsampled data. In this paper, we propose a Coding Block (CB)-level JND-based luma and chroma perceptual quantisation technique for HEVC named Pixel...

In this study we examined relationships among gender role identity, support for feminism, nontraditional gender roles, and willingness to consider oneself a feminist in a sample of college students (N D 301). For female participants, we found positive relationships among higher masculinity on the PAQ (Personal Attributes Questionnaire), nontraditional attitudes toward gender roles, and the comb...

The class of Bézout factorial rings is introduced and characterized. Using the factorial properties of such a ring R, and given a n×m matrix A over R, we find P ∈ GL(n, R) and Q ∈ GL(m, R) such that PAQ is diagonal with every element in the diagonal dividing the following one. Key-words: Ring, Bézout, principal, factorization, reduction of matrices.

Parenting style, as a widely studied topic, has been used by researchers and educators in the US to predict students’ academic achievements. Despite its theoretical and practical significance, no much work has been conducted to test the generalizability of parenting research framed in the Western culture to the Chinese population. Parenting styles in this study were measured by the PAQ (parenti...

Let m × m complex matrix P and n × n complex matrix Q be k-involutions, i.e., Pk−1 = P, Qk−1 = Q for some integer k ≥ 2. An m × n complex matrix A is (P, Q, β)symmetric if PAQ = λβA, or (P, Q, α, β)-symmetric if PAQ−α = λβA, where λ = e2πi/k and α, β ∈ {1, 2, . . . , k}. In this paper, for given matrices X, Y, E, F with appropriate sizes, the solvability of matrix equations AX = E and Y A = F u...

Pervasive computing applications often entail continuous monitoring tasks, issuing persistent queries that return continuously updated views of the operational environment. We present PAQ, a middleware that supports applications’ needs by approximating a persistent query as a sequence of one-time queries. PAQ introduces an integration strategy abstraction that allows composition of one-time que...