The Microsoft version of the game Minesweeper has a known bug that makes sequences of boards appear again after generating thousands of boards, in a cycle, disturbing the random nature of the game. This article exposes the results of a research made in 2004, as well as the subsequent secondary discoveries, like the existence of boards made of combinations of mines from two consecutive boards of...

In India, there are various boards at the 10+2 level, including the CBSE, the ICSE and the state boards, each conducting a separate examination. The syllabus, marking scheme and difficulty level of these examinations may vary across the boards, and also within each board across years. Suppose we wish to compare the scores of students from different boards. In order to make this possible, we nee...

Australia does not have varroa mite. However, we investigated whether modified hive bottom boards used for varroa mite management in honey bee colonies had other benefits, for honey production. We compared a number of colony parameters between hives fitted with tube, mesh and conventional (solid) bottom boards in two locations in eastern Australian, Richmond NSW and Castlemaine Victoria. Coloni...

When aseptic failure of the bond between the cement and the prosthesis of a total joint replacement occurs, complete removal of the cement has been advocated before the insertion of a new prosthesis. The present study questions this practice. Both laboratory tests on variously prepared specimens of cement and clinical experiences demonstrate that recementing over old cement is a practical alter...

This paper reports the effects of carbon nanofibers (CNFs) on nanoscaled mechanical properties of cement composites. CNFs were added to cement composites at the filler loading of 0.2 wt % (by wt. of cement). Micrographs based on scanning electron microscopy (SEM) show that CNFs are capable of forming strong interfacial bonding with cement matrices. Experimental results using nanoindentation rev...

This paper documents several significant correlations between the variability of stock returns, the structure of director compensation and the gender diversity of corporate boards. In a crosssectional sample of boards of directors of 1024 publicly traded firms in fiscal year 1998, we find three robust results: (1) firms facing more variability in their stock returns have fewer women on their bo...

This article investigates the relationship between the characteristics of medical licensing boards and the frequency with which boards discipline physicians. Specifically, we take advantage of variation in the structure of medical licensing boards between 1993 and 2003 to determine the effect of organizational and budgetary independence, public oversight, and resource constraints on rates of ph...

Concrete a composite material made from cement, water, fine aggregate and coarse aggregate. But present researchers are in interest of finding new cement materials by waste materials or waste products produced from industries which are harmful to environment. The present paper deals with partial replacement of cement with quarry dust and metakaolin which are having silica used as admixture for ...

In this research, effect of soaking time of a new synthesized hydroxyapatite-based bone cement in simulated body fluid (SBF) on the final phase and strength has been studied. The powder section of the cement has been synthesized by using tricalcium phosphate, calcium carbonate and anhydrous dicalcium phosphate. The liquid phase of the cement consists of different concentrations of NaH2PO4.2H2O....

BACKGROUND Acetabular cementation during total hip arthroplasty is considered difficult mainly due to the appearance and anatomy of the acetabulum. Improved cementation technique has been shown to improve the longevity of acetabular components. METHOD We designed a ceramic model to investigate the effect of varying the initial cement pressurization and cup introduction times on the depth of c...