Reactive elements (RE), such as Ce, La or Y, are known to improve oxidation resistance of Fe based alloys that form Cr2O3 scales. The current investigation aims to characterize the oxide scale in a Fe-22 wt.% Cr alloy containing 120 ppm La and 270 ppm Ce (added during melt-stage processing) as a function of oxidation times (at 800°C in dry air) during the transient stage of scale formation. The...

The scanning electron microscope (SEM) has been successfully used as an analysis tool for micro scale materials in the last few decades [1]. Recently, the large chamber (LC) SEM at Y-12 has demonstrated useful results in the analysis of large specimens at nano scales. This paper summarizes the research efforts conducted by UT and Y-12 in applying state of art 3D computer vision techniques to LC...

BACKGROUND Enteral acetaminophen, when used alone, is not very effective for postoperative analgesia because of delayed absorption and sub-therapeutic plasma concentrations. In contrast, i.v. acetaminophen is devoid of these shortcomings and could potentially provide adequate postoperative analgesia as a single agent. This randomized double-blind study compared the analgesic effects of i.v. ace...

INTRODUCTION Investigations of patterns of sexual arousal to certain groups of sexually explicit media (SEM) in the general population in non-laboratory settings are rare. Such knowledge could be important to understand more about the relative specificity of sexual arousal in different SEM users. AIMS (i) To investigate whether sexual arousal to non-mainstream vs mainstream SEM contents could...

Polymer gels are regarded as a potential dosimeter for independent validation of absorbed doses in clinical radiotherapy. Several imaging modalities have been used to convert radiation-induced polymerization to absorbed doses from a macro-scale viewpoint. This study developed a novel dose conversion mechanism by texture analysis of scanning electron microscopy (SEM) images. The modified N-isopr...

background fear of falling (fof) is highly common in people with parkinson disease (pd). fear of frequent falling arises from risk factors in pd. objectives one of the most common tools used to measure fof in patients with pd is the survey of activities and fear of falling in the elderly (saffe), but no studies have been conducted on its reliability and validity in iran. the current study attem...

The objective of the study was to assess whether the timing of increased dietary protein throughout the day influences the feelings of fullness during energy balance (EB) and restriction (ER). Nine men (age 48 (sem 6) years; BMI 32.7 (sem 0.7) kg/m2) randomly completed five controlled feeding trials, each consisting of 3 d of EB, followed by 3 d of ER of a 3138 kJ/d (750 kcal/d) reduction). The...

HYPOTHESIS Long-term quality of life (QOL) in patients undergoing laparoscopic cholecystectomy (LC) incurring bile duct injury (BDI) and repair is comparable to that of patients undergoing uncomplicated LC. DESIGN Case comparison study. SETTING Secondary and tertiary care centers. PATIENTS Eighty-six patients incurring BDI during LC between January 1, 1991, and July 31, 2003, were surveye...