let $k$ be a field of characteristic$p>0$, $k[[x]]$, the ring of formal power series over $ k$,$k((x))$, the quotient field of $ k[[x]]$, and $ k(x)$ the fieldof rational functions over $k$. we shall give somecharacterizations of an algebraic function $fin k((x))$ over $k$.let $l$ be a field of characteristic zero. the power series $finl[[x]]$ is called differentially algebraic, if it satisfies...

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The concept of good character was popularized by Thomas Lickona referring to the put forward Aristotle as follows "the life right conduct, conduct in relation another person and self", which means a behavior/full virtue is behave well towards other parties (God Almighty, humans, universe) oneself. There one event that we can make an example with character. Indonesia will become fifth largest co...

Abstract In this paper, we use a discrete choice experiment conducted among pastoralists in four different semi-arid counties Kenya characterized by land tenure regimes to analyze how make tradeoffs between security and grazing flexibility – the so-called pastoralist paradox. Results show that there is one group of respondents who are desperate for change seem prefer either or private title dee...