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Volume 12, Issue 2, April 2023

  • Examining the Causal Effect of Social Development on Maternal Mortality in Sub-Saharan Africa Using Partial Least Squares (PLS) Structural Equation Modeling (SEM)

    Frank Okwan, Peter Kovacs

    Issue: Volume 12, Issue 2, April 2023
    Pages: 23-33
    Received: 4 August 2022
    Accepted: 9 September 2022
    Published: 26 July 2023
    DOI: 10.11648/j.pamj.20231202.11
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    Abstract: The threat of a woman in a low-income economy dying due to pregnancy and childbirth-related complications during her lifetime is about 120 times higher than for a woman living in a high-income economy. Social factors are seen as important factors contributing to maternal mortality and the conceptual framework developed for the reduction of maternal... Show More
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  • A Study of Some Generalizations of Local Homology

    Yanping Liu

    Issue: Volume 12, Issue 2, April 2023
    Pages: 34-39
    Received: 4 July 2023
    Accepted: 25 July 2023
    Published: 28 July 2023
    DOI: 10.11648/j.pamj.20231202.12
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    Abstract: Tate local cohomology and Gorenstein local cohomology theory, which are important generalizations of the classical local cohomology, has been investigated. It has been found that they have such vanishing properties and long exact sequences. However, for local homology, what about the duality? In this paper we are concerned with Tate local homology ... Show More
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