ABSTRACT
Cyclooctane is a cycloalkane consisting of carbon and hydrogen atoms arranged in a closed ring structure. Cyclooctane chains can be found in various organic compounds and are significant in the field of organic chemistry due to their diverse reactivity and properties. The atom-bond connectivity index ( A B C ), the geometric-arithmetic index ( G A ), the arithmetic-geometric index ( A G ) and the forgotten index ( F ) are four well-studied molecular descriptors that have found applications in QSPR and QSAR studies. These topological descriptors have shown significant correlations with different physiochemical properties of octane isomers. In this work, the expected values of four degree based topological descriptors for random cyclooctane chains are calculated. An analytical comparison is given between the expected values of A B C , G A , A G , and F indices of random cyclooctane chains.
ABSTRACT
BACKGROUND: The health status of pregnant women depends largely on the quality of the antenatal and delivery services available to them. Maternal mortality remains a major public health problem with antenatal and delivery care utilization remaining low in Pakistan. This study explores the perspectives of rural community members about the antenatal and delivery care services' utilization by the community. METHODS: A qualitative study was undertaken in the rural community of District Attock. Focus Group Discussions (FGD) were conducted with husbands, married women of child-bearing age with young children and mothers-in-law. Data was analysed manually using content analysis techniques. RESULTS: Majority of the respondents sought antenatal care (ANC) after 3-4 months. They further reported that home was the preferred place of delivery followed by the local "rural health centre". The preferred attendant for delivery was the local Dai (traditional birth attendant). Major limitations to accessing ANC and delivery services were lack of knowledge about ANC, long distance and high transport costs to health care facilities. People had strong beliefs on faith healers (Pirs) and insufficient knowledge about danger signs. Traditional and customary practice as taweez dhaga, saya, purdah, non-availability of health care providers, and lack of trust on young community midwives led to people favouring the home based package of services provided by traditional birth attendants (Dais). CONCLUSION: The findings of this study indicate that demand side barriers such as lack of knowledge regarding home based care, social barriers, financial constraint and non-acceptability of community midwives (CMW) because services offered by traditional birth attendants (TBA) were more accessible in terms of distance and cost are a major challenge affecting utilization. Efforts towards ensuring the utilization of ANC and delivery services should be targeted towards rural areas and the importance of skilled care should be emphasized. Women should be encouraged to utilize antenatal and delivery services.
