Self-perfection by liquefaction (SPEL) was used to fabricate nanoimprint molds with an array of sub-25 nm diameter pillars (200 nm period), resulting in nearly perfect cylindrical shape and smooth sidewalls. SPEL turned an array of irregularly shaped Cr polygons into an array of nearly perfect circular dots with small diameter. The Cr dot arrays were then transferred to SiO(2) or Si pillar arra...

The development of mold of environmental origin in honey affects its quality and leads to its deterioration, so yeasts and molds counts have been used as an important indicator of hygiene levels during its processing, transportation and storage. The aim of this study was to evaluate the levels of yeasts and molds contamination and their correlation with moisture and acidity levels in Apis melli...

Lost-foam (also known as Expendable Pattern Casting, EPC) is an ever-growing metal casting technique, capable of producing complex metal components without parting lines. Mold preparation for lost-foam casting is typically accurate, but expensive and slow. The goal of this research was to develop a new approach for producing rapid lost-foam molds. With this new approach, patterns generated by S...

The concept of molds, introduced by the authors in a recent preprint, break regular tournaments naturally into big classes: cyclic tournaments, tame tournaments and wild tournaments. We enumerate completely the tame molds, and prove that the dichromatic number of a tame tournament is 3.

In the manufacturing industry, nding an orientation for a mold that eliminates surface defects and insures a complete ll after termination of the gravity casting process, is an important and diicult problem. We study the problem of determining a favorable position of a mold (modeled as a polyhedron), such that when it is lled, no air bubbles and ensuing surface defects arise. Given a polyhedron...

With a growing awareness of the potential hazards of chemical and biological agents in our homes, schools and workplaces, a greater emphasis has been placed on evaluating the role of mycotoxins and mycotoxin-producing fungi in our indoor environments. Now, more then ever, the potential health effects of airborne molds and other biological contaminants are being given serious consideration in IA...

BACKGROUND The identification of molds in clinical laboratories is largely on the basis of phenotypic criteria, the classification of which can be subjective. Recently, molecular methods have been introduced for identification of pathogenic molds in clinical settings. Here, we employed comparative sequence analysis to identify molds. METHODS A total of 47 clinical mold isolates were used in t...

In thermal characterization tests of bone cement according to the ASTM Standard Specification for Acrylic Bone Cement, time-temperature profiles of bone cement were observed to be sensitive to the thickness of the cement patty and the mold material. Due to the heat transfer from cement to the surrounding mold, such tests might underestimate the exothermic temperature of bone cement. Developing ...