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- :: arXiv On $q$-scale functions of spectrally negative compound Poisson processes Scale functions play a central role in the fluctuation theory of spectrally negative L\'evy processes. For spectrally negative compound Poisson processes with positive drift, a new representation of the $q$-scale functions in terms of the characteristics of the process is derived. Moreover, similar representations of the derivatives and the primitives of the $q$-scale functions are presented. The obtained formulae for the derivatives allow for a complete exposure of the smoothness properties of the considered $q$-scale functions. Some explicit examples of $q$-scale functions are given for illustration.
- :: TED The colorful critter world of microbes in Antarctica In this tour of the microscopic world, explorer and artist Ariel Waldman introduces the charismatic creatures lurking beneath Antarctica's massive ice sheet, the largest on earth. From "cuddly" water bears to geometric algae made of glass, Waldman shows how this seemingly barren landmass is actually a polar oasis of life — if we just know where to look.
- :: Phys.org Antarctica more widely impacted by climate change than previously thought Antarctica is considered one of the Earth's largest, most pristine remaining wildernesses. Yet since its formal discovery 200 years ago, the continent has seen accelerating human activity. Reporting in the journal Nature, a research team including Tilburg University show where human activities have been conducted and uncover two main concerns: wilderness in Antarctica is decreasing due to an increasing "human footprint" and biodiversity is under pressure because species mainly depend on areas that are strongly influenced by humans. However, much opportunity exists to take swift action.
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제브라피쉬를 활용한 화합물 50종의 기초 생리활성 및 간독성 기능시험 용역(재안내공고)