Aiming at the problem of gliding near space hypersonic vehicle (NSHV) trajectory prediction, a prediction method based on aerodynamic acceleration empirical mode decomposition (EMD) is proposed. The analyzes motion characteristics skipping NSHV and verifies that target has relatively stable rule. On this basis, EMD used to extract trend into multiple sub-items, aggregate sub-items with similar ...

BACKGROUND Depression and anxiety are recognised increasingly as serious public health problems among women in low- and lower-middle income countries. The aim of this study was to validate the 21-item Depression Anxiety and Stress Scale (DASS21) for use in screening for these common mental disorders among rural women with young children in the North of Vietnam. METHODS The DASS-21 was transla...

BACKGROUND Complete and transparent reporting of clinical trial protocols and reports ensures that these documents are useful to all stakeholders, that bias is minimized, and that the research is not wasted. However, current studies repeatedly conclude that pediatric trial protocols and reports are not appropriately reported. Guidelines like SPIRIT (Standard Protocol Items: Recommendations for ...

BACKGROUND Information about the prognostic implications of a DSM-IV diagnosis of alcohol dependence is important to both clinicians and researchers. In this regard, only limited data are available on the performance of specific diagnostic items. METHODS This study reports data gathered with a structured, validated interview with 642 alcohol-dependent men and women from the Collaborative Stud...

In this paper, we propose a new approach to find the most dependent test items in students’ response data by adopting the concept of entropy from information theory. We define a distance metric to measures the amount of mutual independency between two items, and it is used to quantify how independent two items are in a test. Based on the proposed measurement, we present a simple yet efficient a...

Determinantal Point Process (DPP) has gained much popularity for modeling sets of diverse items. The gist of DPP is that the probability of choosing a particular set of items is proportional to the determinant of a positive definite matrix that defines the similarity of those items. However, computing the determinant requires time cubic in the number of items, and is hence impractical for large...

Between July 1999 to November 2000, 115 patients undergoing radiotherapy were evaluated for the development of treatment-related fatigue, using a modified Piper's fatigue scale. The above scale determines 4 dimensions of fatigue ie behavioral severity (6 items), affective meaning (5 items), sensory (5 items), and cognitive mood (6 items). Radiotherapy was delivered to the head and neck, breast,...