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Homeobox genes are regulatory genes often associated with tumors in the adult organisms. We investigated their comparative expression by immunohistochemical and real-time PCR analysis, in normal and inflammatory nasal mucosae and in sinonasal neoplasms in order to use them as possible diagnostic and therapeutic...
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This paper introduces the method of developing, characterizing, and tracking in real-time the tumor metastasis in zebrafish model of neuroblastoma, specifically in the transgenic zebrafish line with overexpression of MYCN and LMO1, which develops metastasis spontaneously.
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Classifying Matter by Composition03:35

Classifying Matter by Composition

Matter: Pure Substances and Mixtures
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Classifying Matter by State02:49

Classifying Matter by State

Chemistry is the study of matter and the changes it undergoes. Matter is anything that has mass and occupies space. Matter is all around us; the air, water, soil, mountains, even our bodies are all examples of matter. Matter is divided into three states — solid, liquid, and gas — that are commonly found on earth. The fourth state of matter, plasma, occurs naturally in the interiors of stars. 
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