Recommender Systems have been around for more than a decade now. Choosing what book to read next has always been a question for many. Even for students, deciding which textbook or reference book to read on a topic unknown to them is a big question. In this paper, we try to present a model for a web-based personalized hybrid book recommender system which exploits varied aspects of giving recommendations apart from the regular collaborative and content-based filtering approaches. Temporal aspects for the recommendations are incorporated. Also for users of different age, gender and country, personalized recommendations can be made on these demographic parameters. Scraping information from the web and using the information obtained from this process can be equally useful in making recommendations.

Purpose: To compare the efficacy of Kane formula with Sanders Retzlaff Kraff/Theoretical (SRK/T) and Barrett Universal II in predicting intraocular lens (IOL) power in Indian eyes. Methods: This retrospective study conducted in a tertiary care eye hospital. Data from patients having uneventful cataract surgery with Tecnis ZCB00 IOL implantation were obtained from Lenstar and electronic medical records. Eyes were divided into subgroups based on axial length (AL) as short (<22.0 mm), medium (22–24 mm), and long (>24 mm). The predicted refractive outcome for each patient was calculated after optimizing the lens constant. Prediction error was calculated by subtracting the predicted spherical equivalent from achieved spherical equivalent 1 week post-surgery. The mean absolute error (MAE) and median absolute error (MedAE) and percentage of eyes within 0.25, 0.5, 1, and 2 D were calculated for each formula. Friedman test, Cochrane Q test were used for statistical analysis. Results: Out of the 350 eyes included in the study, we found that without lens constant optimization, Barrett formula performed better than SRK/T and Kane ( P < 0.0001). Over the entire range of axial lengths, Kane formula performed slightly inferior compared to Barrett and SRK-T, both of which performed equally well ( P = 0.006). On subgroup analysis, Kane formula performed inferiorly for medium eyes as compared to the other two. No significant differences were noted between the formulae for short and long eyes Conclusion: Kane formula did not outperform Barrett Universal II and SRK/T in Indian eyes.

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The main objective of the study is to emphasizes the importance of the postero-medial fragment in the management of the tibial plateau fractures and study the functional outcome in Proximal tibia fracture treated with buttress plating. So accurate reduction and buttressing the fragment is essential for excellent functional outcome. Materials and Methods: It was a single center Retrospective and prospective study. 60 patients, with mean age 50.53 + 13.47, presenting with traumatic fractures of proximal tibial having posteromedial fragment treated with buttress plating via posteromedial approach were included in the study and were followed up for the period of 1-year post-surgery. Anatomical and functional evaluation was done using the modified Rasmussen's clinical and radiological criteria. Results: Mean Rasmussen's Clinical Outcome score was 26.63 ± 2.63 with 53.33% (32 patients) showed excellent clinical outcome and 30% (18 patients) showed good outcome. Mean Rasmussen's Radiological Outcome score was 8.3 ± 0.95 with 60% (36 patients) showed excellent radiological outcome and 33.33% (20 patients) showed good outcome. The correlation between Rasmussen's Clinical and Radiological Score was found to be strongly positive (R=0.76) which was a statistically significant finding (p<0.05). The correlation between Rasmussen's Clinical and Radiological Score with Age of patients was found to be negative (p=0.03). There was a significant difference in Mean Clinical and Radiological Scores of Patients between different classification groups, Highest score were seen in patients with One Column involvement followed by Two column (p <0.05). Conclusion:The study emphasizes the importance of the postero-medial fragment in the management of the tibial plateau fractures. Accurate reduction and buttressing the fragment is essential for excellent functional outcome. The goal of treatment of these fractures aims at stability and perfect articular reduction, both of them are not possible without reduction and fixation of the posteromedial fragment.