Optimization of Scheduling Problems: A genetic algorithm survey 1

Abstract: There are various methods to optimize the scheduling systems such as tabu search, genetic algorithms and simulated annealing etc. These methods usually require much less work than developing a specialized heuristic for a specific application, which makes metaheuristics an appealing choice for implementation in general purpose of sequencing and scheduling. Furthermore, a good metaheuristics implementation is likely to provide near optimal solutions in reasonable computational time. Among these Genetic algorithm is believed to be the most vigorous impartial random (stochastic) search algorithm for sampling a large solution space. This study demonstrates a substantial description of various genetic algorithm based techniques and its usage in scheduling and sequencing problem. A review of genetic algorithm and its intricate practices in managing different objective problems and forming hybrid procedures with parameters for scheduling problems have been explored in the present work

Flavone-based dual PARP-Tubulin inhibitor manifesting efficacy against endometrial cancer

AbstractStructural tailoring of the flavone framework (position 7) via organopalladium-catalyzed C–C bond formation was attempted in this study. The impact of substituents with varied electronic effects (phenyl ring, position 2 of the benzopyran scaffold) on the antitumor properties was also assessed. Resultantly, the efforts yielded a furyl arm bearing benzopyran possessing a 4-fluoro phenyl ring (position 2) (14) that manifested a magnificent antitumor profile against the Ishikawa cell lines mediated through dual inhibition of PARP and tubulin [(IC50 (PARP1) = 74 nM, IC50 (PARP2) = 109 nM) and tubulin (IC50 = 1.4 µM)]. Further investigations confirmed the ability of 14 to induce apoptosis as well as autophagy and cause cell cycle arrest at the G2/M phase. Overall, the outcome of the study culminated in a tractable dual PARP-tubulin inhibitor endowed with an impressive activity profile against endometrial cancer

Treatment Delay in Oral and Oropharyngeal Cancer in Our Population: The Role of Socio-Economic Factors and Health-Seeking Behaviour

The objective is to assess the role of socio-economic factors and health-seeking behavior in treatment delay in oral and oropharyngeal cancer in our population. This article adapts—design: prospective study and setting: tertiary care centre. We studied 153 patients with oral and oropharyngeal squamous cell carcinoma who were managed in the department of otolaryngology and head and neck surgery between January 2006 and December 2007. There were 127 male patients (83%) and 26 females (17%) with ages ranging from 22 years to 70 years. Fifty-nine patients (39%) presented to us with early stage disease (i.e. stage I and II), whereas, 94 patients (61%) presented with late stage disease (i.e. stage III and IV). Of the 59 patients presenting with early stage disease, 20 were illiterate and 39 literate with 28 patients (47%) belonging to low socio-economic status and 32 patients (54%) having an access to primary health centre (PHC). Of the 94 patients presenting with late stage disease, 53 were illiterate and 41 literate with 58 patients (62%) belonging to low socio-economic status and 38 patients (40%) having an access to primary health centre. Literacy, socio-economic status, access to primary health centre and health-seeking behavior of our population has a significant association with the stage of presentation of patients with oral and oropharyngeal cancer