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Porcine reproductive and respiratory syndrome (PRRS) is an immunosuppressive disease that is characterized by respiratory distress and poor growth in piglets and by severe reproductive failure in sows. PRRS was first recognized in the 1990s in Europe and the United States. In 2006, highly pathogenic (HP)-PRRS caused enormous economic losses in China. Our(More)
ABSTRACT The wheat stripe rust pathogen (Puccinia striiformis f. sp. tritici) population in China has been reported to be a distinct genetic group with higher diversity than those in many other countries. Genetic recombination in the P. striiformis f. sp. tritici population has been identified with molecular markers but whether sexual reproduction occurs in(More)
Objectives. Osteopontin (OPN) is overexpressed in breast cancers, while its clinical and prognostic significance remained unclear. This study aimed to assess the prognostic value of OPN, especially its splice variants, in breast cancers. Methods. Data were extracted from eligible studies concerning the OPN and OPN-c expression in breast cancer patients and(More)
Correlation has been used extensively in object detection field. In this paper, two kinds of correlation filters, Minimum Average Correlation Energy (MACE) and Extended Maximum Average Correlation Height (EMACH), are applied as adaptive shift locators to detect and locate smudgy character strings in complex tabular color flight coupon images. These strings(More)
We investigated the relationship between prostaglandin (PG) F(2)(alpha)-induced functional luteal regression and apoptosis in the rodent ovary. Administration of PGF(2)(alpha) significantly decreased the serum levels of progesterone within 12 h after treatment in pseudopregnant mice. Apparent signals were detected in luteal tissues at 24 to 72 h by terminal(More)
A novel technique is presented in this paper to extract strings in color images of both Business Settlement Plan (BSP) and non-BSP airline coupon. The essential concept is to remove non-text pixels from complex coupon images, rather than extract strings directly. First we transfer color images from RGB to HSV space, which is approximate uniformed, and then(More)
A novel image thresholding method using improved particle swarm optimization is proposed in this paper. Unlike tradition thresholding methods, the proposed method search the optimal threshold based on the movements of particles without the criterion function. Experiments and comparisons show that the proposed method is a fast, stable and effective image(More)