Black silicon properties are investigated in the wavelength range extending from 0.2 to 25 μm with a focus on mid-infrared (MIR). It is demonstrated that concurrently increasing initial level of doping bare silicon, given limits, enables reaching even higher absorptance and spectral range. Unprecedented light levels obtained black up 99.5% 1 8 above 90% until 20 μm, leading ultrabroadband, ultr...

Herein, it is investigated if black diamond useful in a bactericidal surface. Black derived from silicon, silicon surface structured into nanosized needles. obtained by coating with thin film, rendering the nanostructures more robust. The and antibacterial properties of fluorine‐terminated hydrogen‐terminated diamonds those for flat surfaces (on silicon) same terminations are studied. ability t...

The number of studies using various stable isotope systems for tracing contamination sources and biogeochemical processes is rapidly rising due to the increased availability techniques used analyses. However, in most cases, resulting data are influenced by many occurring within reactive environmental compartments, e.g., soils sediments, such as sorption, precipitation, redox changes, interactio...

objective: infection control is one of the important aspects in dentistry. oral and maxillofacial surgery is one of the most sensitive fields in dentistry in which infection control is important a sterile surgical set is imperative. manufacturers only guarantee the sterility of the anesthetic not the sterility of its outer surface. they recommend alcohol to sterile the outer surface (especially...

INTRODUCTION The purpose of this study is to analyze national and institutional trends in shoulder arthroplasty utilization by race. METHODS The Nationwide Inpatient Sample (NIS) was analyzed to determine racial trends in shoulder arthroplasty utilization nationally. An institutional database was then utilized to retrospectively identify all patients undergoing shoulder arthr...

black humor plays a crucial role in fulfilling langston hughes's anti-racist purposes as an integral notionin his poetry. accordingly, translation(s) of his poetry are to benefit from the same indexes onthe basis of equivalent effect principle. on this account, 33 black-humor-rich poems of hughes, translatedby ahmad shamloo, yaghma golruee and hassan fayyad, were selected to be analyzed contras...

In a paper [23] in 1973, R. Penrose made a physical argument that the total mass of a spacetime which contains black holes with event horizons of total area A should be at least √ A/16π. An important special case of this physical statement translates into a very beautiful mathematical inequality in Riemannian geometry known as the Riemannian Penrose inequality. One particularly geometric aspect...

The aim of the study was to evaluate the activity of high-polyphenolic black currant (Ribes nigrum L.) and bilberry (Vaccinium myrtillus L.) juices against bacterial strains Asaia lannensis and Asaia bogorensis isolated as spoilage of commercial soft drinks. The composition of fruit juices was evaluated using chromatographic techniques HPLC and LC-MS. The adhesion to glass, polystyrene, and pol...