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		<title>Botanic Garden of Pisa Reveals Hidden Lichen Richness in the Heart of a City</title>
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				<category><![CDATA[Biology]]></category>
		<category><![CDATA[air quality indicators]]></category>
		<category><![CDATA[Biodiversity Conservation]]></category>
		<category><![CDATA[botanical gardens]]></category>
		<category><![CDATA[epiphytes]]></category>
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		<category><![CDATA[Red List species]]></category>
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		<category><![CDATA[Tuscany]]></category>
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					<description><![CDATA[A survey of the Botanic Garden of Pisa recorded 57 epiphytic lichen taxa, including two species new to Tuscany and several threatened species, revealing botanical gardens as urban refuges for rare bark-dwelling organisms.]]></description>
		
		
		
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		<title>Genetic Algorithm Builds PISA-Inspired Math Tests Automatically</title>
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		<pubDate>Sun, 18 Oct 2026 06:30:56 +0000</pubDate>
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		<category><![CDATA[PISA]]></category>
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					<description><![CDATA[Building a good mathematics test is a surprisingly hard optimization problem. Every item in a test bank carries its own content domain, difficulty level, cognitive demand, and point value, and a well-constructed exam must balance all of these simultaneously while]]></description>
		
		
		
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