The Republic of Congo in the course last two decades has been marked by a strong demographic explosion. increase its population accompanied significant demand for drinking water. Congolese populations order to meet their water needs, have recourse rainwater, surface and groundwater, because it is easy access. city Brazzaville, political capital Congo, also affected this problem. study carried o...

In this paper we consider germs of smooth families of symmetric matrices. Using the natural notion of equivalence, that is smooth change of parameters and parameterised conjugation, we obtain a list of all simple germs and investigate their geometry. 2000 Math. Subj. Class. 15A21, 58K50, 58K60.

In this paper we prove a Fatou type theorem for complex map germs. More precisely, we give (generic) conditions assuring the existence of parabolic curves for complex map germs tangent to the identity, in terms of existence of suitable formal separatrices. Such a map cannot have finite orbits.

INTRODUCTION Hypodontia is the most frequent developmental anomaly of the orofacial complex, and its detection in prenatal ultrasound may indicate the presence of congenital malformations, genetic syndromes and chromosomal abnormalities. To date, only a few studies have evaluated the histological relationship of human tooth germs identified by two-dimensional (2D) ultrasonography. In order to a...

  Introduction: Deep sternal wound infection is a rare but serious complication after cardiac surgery that can increase mortality and morbidity. The aim of this study was to investigate the incidence and causative germs of deep sternal wound infection following cardiac surgery.   Methods: Data were collected retrospectively from patients who underwent different cardiac surgeries includ...

This study aims to compare the characteristics of handmade liquid hand soap formula and its effectiveness in reducing number germs. The formulation used is difference amount EDTA, Texapon, NaCl making. characterization carried out was organoleptic, physical stability at room temperature, pH, viscosity, foam height stability, water holding capacity, density. Meanwhile, reduced germs by calculati...