This is an account of a series of lectures of Graham Higman on januarials, namely coset graphs for actions of triangle groups which become 2-face maps when embedded in orientable surfaces. Spilt Milk We that have done and thought, That have thought and done, Must ramble, and thin out Like milk spilt on a stone. The Nineteenth Century and After Though the great song return no more There’s keen d...

The purpose of this note is to construct a non-hopfian and finitely generated group 5 which is in no way complicated. This group S is a generalised free square of the free nilpotent group A of class two on two generators. Since A satisfies the maximum condition, S differs radically from the non-hopfian groups constructed by Graham Higman [ l ] , with which it may be compared. I t may perhaps be...

‎‎we investigate graham higman's paper emph{enumerating }$p$emph{-groups}‎, ‎ii‎, ‎in which he formulated his famous porc conjecture‎. ‎we are able to simplify some of the theory‎. ‎in particular‎, ‎higman's paper contains five pages of homological algebra which he uses in‎ ‎his proof that the number of solutions in a finite field to a finite set of‎ ‎emph{monomial} equations is porc‎. ‎it turn...

This article is a concise review of the application of secondary ion mass spectrometry (SIMS) to the imaging of biological cells. The paper covers the various advantages and disadvantages of different approaches to SIMS analysis with respect to the information that can be gained from the interrogation of the cells. Current successes, pitfalls and future potential for SIMS in cell imaging are di...

Many service identification methods (SIMs) have been proposed to support the determination of services that are appropriate for use in an SOA. However, these SIMs vary in terms of analysis objectives, identification procedures and service hierarchies. Due to the heterogeneity of the SIMs, practitioners often face the difficulty of choosing a SIM that copes with available resources and fits thei...

The purpose of the present research was to develop and validate a situational (or state) measure of motivation, the Situational Motivation Scale (SIMS). The SIMS is designed to assess the constructs of intrinsic motivation, identified regulation, external regulation, and amotivation (E. L. Deci & R. M. Ryan, 1985, 1991) in field and laboratory settings. Five studies were conducted to develop an...

We tested the suitability of two spectroscopic methods, x-ray photoelectron spectroscopy (XPS) and time of flight secondary ion mass spectrometry (ToF-SIMS), in the recognition of bacterial and eukaryotic cell footprints on implant surfaces. Human mesenchymal stem cells (MSCs) and Staphylococcus aureus were cultured on sample surfaces and detached using trypsin. Scanning electron microscopy con...

Different modes of SIMS for thin film analysis and the principle of SIMS will be discussed; this will be followed by a discussion of some features related to instrumentation: types of ion sources and their characteristics; ion microprobe versus ion microscope; special modes of SIMS: sputter neutral mass spectrometry (SNMS) and fast atom bombardment. (FAB). The discussion of analytical features ...

this article deals with the social and family values in one of the most famous simulation games (the sims) in the recent years. it is tried to answer some questions, whether, the sims is a representative of social values of american society, and in particular, of the american family. what is the cement of the american society from the game point of view? what does the sims family suggest as a m...