The MALLET topic modeling toolkit contains efficient, sampling-based implementations of Latent Dirichlet Allocation, Pachinko Allocation, and Hierarchical LDA.
The Administrator must grant or deny a deletion petition prior to promulgating any emission standards pursuant to subsection (d) applicable to any source category or subcategory of a listed hazardous air pollutant without a CAS number listed under subsection (b) for which a deletion petition has been filed within 12 months of If the Administrator determines that information on the health or environmental effects of a substance is not sufficient to make a determination required by this subsection, the Administrator may use any authority available to the Administrator to acquire such information.
The Administrator may establish, by rule, test measures and other analytic procedures for monitoring and measuring emissions, ambient concentrations, deposition, and bioaccumulation of hazardous air pollutants.
Within 18 months after receipt of a petition, the Administrator shall either grant or deny the petition by publishing a written explanation of the reasons for the Administrator’s decision.
Any such petition shall include a showing by the petitioner that there is adequate data on the health or environmental defects  of the pollutant or other evidence adequate to support the petition.
The Administrator may not deny a petition solely on the basis of inadequate resources or time for review.
The Administrator shall add a substance to the list upon a showing by the petitioner or on the Administrator’s own determination that the substance is an air pollutant and that emissions, ambient concentrations, bioaccumulation or deposition of the substance are known to cause or may reasonably be anticipated to cause adverse effects to human health or adverse environmental effects.Sosu's Call : This lesson helps children understand how they can be affected by the way others view them.The story is about Sosu, an African boy with a disability., the Administrator shall publish, and shall from time to time, but no less often than every 8 years, revise, if appropriate, in response to public comment or new information, a list of all categories and subcategories of major sources and area sources (listed under paragraph (3)) of the air pollutants listed pursuant to subsection (b).To the extent practicable, the categories and subcategories listed under this subsection shall be consistent with the list of source categories established pursuant to section 7411 of this title and part C.This lesson plan addresses the following literacy skills: asking and answering questions about key details and unknown words in a text, referring explicitly to the text for the answers; describing characters' traits, feelings, and motivations and how their actions contribute to the events in a story; and writing an opinion piece in response to a text-based question.