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南秦岭淅川地区上石炭统周营组生物群特征 被引量:1
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作者 裴中朝 朱广彬 杨振军 《沉积与特提斯地质》 CAS CSCD 2004年第2期63-69,共7页
南秦岭淅川地区上石炭统周营组有多门类化石共生 ,类为晚石炭世的标准分子 ,菊石、腕足、珊瑚、双壳、腹足类多具泥盆纪生物群特征。岩石组合、岩性特征、层序特征、沉积环境演变及构造古地理、生态的综合研究表明 ,周营组为晚石炭世... 南秦岭淅川地区上石炭统周营组有多门类化石共生 ,类为晚石炭世的标准分子 ,菊石、腕足、珊瑚、双壳、腹足类多具泥盆纪生物群特征。岩石组合、岩性特征、层序特征、沉积环境演变及构造古地理、生态的综合研究表明 ,周营组为晚石炭世沉积地层 ,其内的晚石炭世、中晚泥盆世古生物组合是在有障壁的局限滞留盆地这一特殊的古地理和生态环境下形成和发展起来的 ,是南秦岭淅川地区特有的组合 ,不具有搬运再沉积的物质条件 ,不是搬运再沉积的结果。每一次海侵 ,海水的加深和有机质的富集 ,是周营组生物群得以发生和发展的有利条件。海水的退出、咸化和相对闭塞环境下食物的缺乏 ,是生物群绝灭 ,并很好保存埋藏的主要原因。 展开更多
关键词 南秦岭 周营组 生物 豫西南
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The Relationship Between Working Capital Management and Profitability of Companies Listed on the Johannesburg Stock Exchange
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作者 Sam Ngwenya 《Journal of Modern Accounting and Auditing》 2012年第8期1204-1213,共10页
Efficient working capital management is an integral component of the overall corporate strategy to create shareholders' wealth. This paper seeks to extend findings regarding the relationship between working capital m... Efficient working capital management is an integral component of the overall corporate strategy to create shareholders' wealth. This paper seeks to extend findings regarding the relationship between working capital management and profitability. A sample of 69 companies listed on the Johannesburg Stock Exchange (JSE) for the period from 1998 to 2008 was selected. The results revealed a statistically significant negative relationship among profitability (as measured through gross operating profit), the cash conversion cycle (CCC), and number of days accounts receivable (AR). The results also revealed a positive and significant relationship among profitability, the number of days accounts payable (AP), and the number of days inventory (INV). The results suggested that managers could increase their company's profitability by effectively managing the CCC and its components. 展开更多
关键词 working capital management cash conversion cycle (CCC) PROFITABILITY
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