The process of biology study by using the whiteboard animation medium will allow teacher to use it as a fascinating, creative introduction study. aim is develop learning medium, describing worthiness based media. method used in research and development (r&d). subject this sophomores, Sibolga high school. data-collection techniques are observation, angket, interview. analysis technique quant...

In this paper, we study the effects of uncertainty shocks in a quantitative framework where firms corporate sector are constrained by credit. Specifically, formulate borrowing constraints as nested function that features both earnings and capital alternative instruments for assessing credit worthiness, line with recent trends finance. We find incorporates only one instrument (capital or earning...

The production of closed-cell metallic foams has been interest to the scientific community and industry for decades, owing their unique properties, which include high specific strength stiffness, buoyancy, shock absorption, crash worthiness. One approaches fabrication relies solely on use powders is manifested in what referred as powder metallurgy (PM) route. This review discusses underlying fu...