Objective: To report a case of severe necrotizing ulcerative periodontitis (NUP) with a rarely associated sequestrum formation in a Nigerian HIV-positive patient. Clinical Presentation and Intervention: A 47-year-old HIV-positive male patient with no history of previous dental visits presented with a severe toothache in his lower jaw of 4 weeks’ duration, which had affected his ability to chew ...

Objective: To report a case of severe necrotizing ulcerative periodontitis (NUP) with a rarely associated sequestrum formation in a Nigerian HIV-positive patient. Clinical Presentation and Intervention: A 47-year-old HIV-positive male patient with no history of previous dental visits presented with a severe toothache in his lower jaw of 4 weeks’ duration, which had affected his ability to chew ...

We estimate a dynamic model of employment, human capital accumulation including education, and savings for women in the UK, exploiting policy changes. We analyze both the incentive effects and the welfare implications of tax credits and income support programs and we account for their insurance value. We find important incentive effects on education choice and labor supply, with single mothers ...

The Swedish comprehensive school reform implied an extension of the number of years of compulsory school from 7 or 8 to 9 for the entire nation and was implemented as a social experiment by municipality between 1949 and 1962. A previous study (Meghir and Palme, 2005) has shown that this reform signi cantly increased the number of years of schooling as well as labor earnings of the children who ...

We discuss recent developments in the literature that studies how the dynamics of earnings and wages affect consumption choices over the life cycle. We start by analyzing the theoretical impact of income changes on consumption highlighting the role of persistence, information, size and insurability of changes in economic resources. We next examine the empirical contributions, distinguishing bet...

2-joins are edge cutsets that naturally appear in the decomposition of several classes of graphs closed under taking induced subgraphs, such as balanced bipartite graphs, even-hole-free graphs, perfect graphs and claw-free graphs. Their detection is needed in several algorithms, and is the slowest step for some of them. The classical method to detect a 2-join takes O(nm) time where n is the num...

Objective: To report a case of severe necrotizing ulcerative periodontitis (NUP) with a rarely associated sequestrum formation in a Nigerian HIV-positive patient. Clinical Presentation and Intervention: A 47-year-old HIV-positive male patient with no history of previous dental visits presented with a severe toothache in his lower jaw of 4 weeks’ duration, which had affected his ability to chew ...

We estimate a dynamic model of employment, human capital accumulation including education, and savings for women in the UK, exploiting tax and benefit reforms, and use it to analyze the e↵ects of welfare policy. We find substantial elasticities for labor supply and particularly for lone mothers. Returns to experience, which are important in determining the longer-term e↵ects of policy, increase...

This paper addresses the fundamental characteristics of information exchange via multihop network coding over two-way relaying in a wireless ad hoc network. The end-to-end rate regions achieved by timedivision multihop (TDMH), MAC-layer network coding (MLNC) and PHY-layer network coding (PLNC) are first characterized. It is shown that MLNC does not always achieve better rates than TDMH, time sh...

In [Structural properties and decomposition of linear balanced matrices, Mathematical Programming, 55:129–168, 1992], Conforti and Rao conjectured that every balanced bipartite graph contains an edge that is not the unique chord of a cycle. We prove this conjecture for balanced bipartite graphs that do not contain a cycle of length 4 (also known as linear balanced bipartite graphs), and for bal...