This article describes a clinical case of a girl who has been treated for a long time with remedies from the mineral group?Alumina and Aluminum muriaticum. Although the homeopathic treatment was working well, the definite healing was realised by the use of a close but absolutely new remedy?Aluminum chloride hexahydratum. At that time we couldn't find the remedy in any pharmacy so we took the salt from a chemical laboratory. Although this remedy was close in its chemical formula to the remedies used before, a full recovery was achieved only with Aluminum chloride hexahydratum. The girl got rid of her uncertainty about her appearance, found a job, got married and had a baby. She became confident and now sees herself as a successful and skilled professional.

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The article presents the results on the influence of geometric factors and surface states at the interfaces on the processes of electronic transport in thin silicon films on dielectric. TCAD Sentaurus calculations of the mesaresistors relative change resistance (ΔR\R) on the applied power, have shown the decisive role of traps with "shallow" states in the film conductivity. Their presence leads to a nonmonotonic dependence ΔR\R.

Aim: To assess the opportunity of use specificity (Sp) and sensitivity (Se) - indicators that are generally accepted for any diagnostic method - in homeopathy. Methodology: Analysis of comprehensions Specificity and Sensitivity in context of homeopathic knowledge. Results and discussions: In homeopathy, as in mathematics, patterns are identified through research, the main resources: provings, cases, repertory data, Materia Medica, and source information. S. Bohger wrote: “not all symptoms are equivalent”, “peculiar characteristics should be distinguished from the general series”. Considering the different facets in the general pattern of any remedy, we can see that the weight and diagnostic significance of each facet are different. Each facet of the pattern can be characterized by specificity (Sp) and sensitivity (Se) – indicators that are generally accepted for any diagnostic method. Specificity in medicine is the ability of the diagnostic method (facet of the pattern) not to give false positive results in the absence of disease (i.e., not to point to another remedy). Sp shows to what degree this parameter is typical for this remedy. It is defined as the proportion of the truly negative results of healthy individuals in the group under examination (i.e., the more often the facet is found in other remedies, the lower the specificity is). E.g., the Sp of sore throat for Hepar sulphur is how rarely the sore throat will be met in all other cases, except Hepar sulphur). Sensitivity is the ability of the diagnostic method (certain facet of the pattern) to give the correct result (to identify the remedy), which is defined as the proportion of true positive results among all tests performed (i.e., how often this facet of the pattern appears in this remedy compared to others). The Se reflects how often this pattern theme (symptom) occurs among all cases of this remedy, for example, how often we will find the sore throat among all cases of Hepar sulphur. The key symptoms, corresponding to the leading symptoms of the remedy, so-called “grains of gold” in homeopathy, can be attributed to highly specific parameters: they “valuable, few and hidden”, and as the “key to the lock” opening the whole case. Obviously, the key symptoms should have both high Sp and sufficient Se to be some kind of a visiting card of the remedy. Concomitant symptoms can be attributed to sensitive parameters, they complement the overall picture of the remedy, but they cannot be relied on in the decisive choice of the remedy (due to their low specificity). Conclusion: Sp and Se can use for description basic homeopathic terms and concepts and show diagnostic contribution of individual parameters in total pattern of the homeopathic remedy on different levels of disease.