Surfaces with built-in antimicrobial activity have the potential to reduce hospital-acquired infections. One promising strategy is to create functionalised surfaces which, following illumination with visible light, are able to generate singlet oxygen under aerobic conditions. In contrast to antibiotics, the mechanism of bacterial kill by species derived from reactions with singlet oxygen is com...

Aims & Objectives The aim of this study is to evaluate genetic relatedness, antibiotic resistance pattern, and virulence characteristics of different types of S. aureus isolated from air, surfaces, staff, and patients in a Public hospital in Ilam. Methods & Materials A total of 88 of 140 staphylococci identified as S. aureus by conventional and molecular methods were used in this study. Isola...

The efficacy of ultraviolet C (UVC) light (100-280 nm) in the decontamination of three hospital-related surfaces, namely, unpainted/painted aluminum (bed railings), stainless steel (operating tables), and scrubs (laboratory coats), was investigated. Acinetobacter baumannii cells were inoculated (10(5) or 10(3) cells) on small coupons and dried overnight in a class II biosafety cabinet. Drying r...

INTRODUCTION Direct contact is undoubtedly the main means of transmission of hospital infections. An investigative study was therefore conducted to assess workplace surfaces at risk from microbial contamination. METHODS The study was conducted using swabs and contact slides placed on the palms of healthcare workers during their routine patient care and on workplace surfaces (e.g. telephones, ...

Deep tissue injury (DTI) can rapidly evolve into a higher stage pressure ulcer. Use of pressure-redistribution surfaces is a widely accepted practice for the prevention of pressure ulcers in acute care patients, particularly in departments where care processes limit mobility. A 15-year-old patient developed a sacral DTI 24 hours after completion of a lengthy (12- hour) electroph...

INTRODUCTION The study assessed the efficacy of a system of nebulization of a hydrogen peroxide-based solution for surface disinfection. METHODS Different concentrations (1, 2 and 4 ml/m3) of the same disinfectant solution (active principle: hydrogen peroxide) were nebulized inside a 50 m3 experimental environment. Sampling was carried out on both horizontal and vertical surfaces, and the tot...

N osocomial (hospital-acquired, healthcare-associated) infections are a serious health problem worldwide. It is estimated that nosocomial infections account for 10 15% and more than 40% of hospitalizations in developed and developing countries, respectively (1). A wide spectrum of organisms has been associated with nosocomial infections; however, the most common nosocomial pathogens have been m...

in this paper, the time-like hyperruled surfaces in the minkowski 4-space and their algebraicinvariants are worked. also some characteristic results are found about these algebraic invariants.

in this paper, the dual area vector of a closed dual spherical curve is kinematically generatedand the dual steineer vector of a motion are extensively studied by the methods of differential geometry.jacobi’s theorems, known for real curves, are investigated for closed dual curves. the closed trajectorysurfaces generated by an oriented line are fixed in a moving rigid body in ir3 , in which the...

introduction: until now, many models have been presented for optical study of the human eye. in recent years, surgery on the anterior section of the eye (such as cataract and photo-refractive surgery) has increased, so a study on the optics of the eye and evaluation of vision quality has become more important. material and methods: in this article, some of these models are considered. they incl...