It has been established that lNH2SO4 solution and distilled water can be used as a protective medium for long-term storage (30-40 days) of thallium amalgam eutectic composition (8.6 mas.%), without sliming its surface an insignificant change concentration. An inverse dependence between the decomposition reaction rate ratio volume per unit contact (V:S), which corresponds to height liquid layer ...

We report on observations of correlated behavior between the prompt γ-ray and optical emission from GRB 080319B, which (i) strongly suggest that they occurred within the same astrophysical source region and (ii) indicate that their respective radiation mechanisms were most likely dynamically coupled. Our preliminary results, based upon a new cross-correlation function (CCF) methodology for dete...

In this experiment we observe the distribution of radiation emitted by a Cs source. Using a scintillation counter, we count the number of gamma rays emitted by the radiation source at four different mean count rates: 1 sec−1, 4 sec−1, 10 sec−1, and 100 sec−1. From this we can plot the distribution of counts/sec versus the frequency of count rate. We find the distributions for the different mean...

OBJECTIVE A local anaesthetic with fast onset, short and reliable duration of anaesthesia may be preferable for day care urological surgeries. Low dose lignocaine is believed to act faster and to have a shorter duration of action than low dose bupivacaine. Use of lignocaine for spinal anesthesia is discouraged now a days because of rare reports of transient neurological symptoms. The purpose of...

Ten hospitalized patients performed two exercise tests per day on five consecutive days to determine the efficacy and duration of action of three sublingual long-acting nitrate preparations: isosorbide dinitrate, pentaerythritol trinitrate, and erythrityl tetranitrate. The duration of exercise to the point of ischemia, manifest as typical anginal pain and/or 1.0 mm ST-segment depression, was de...

Enamel microabrasion using hydrochloric acid and pumice is an effective method to remove superficial enamel discoloration. This procedure is used in many dental offices but little is known about how different treatment combinations of hand applicator pressure on the tooth, number of applications, and duration of application affect the amount of enamel loss. This investigation studied variables ...

This study investigated the influence of short and moderate recovery intervals on lipid profiles and plasminogen activator inhibitor-1 (PAI-1) following exhaustive strength exercise in recreational weightlifters. Seven subjects performed two conditions in a randomized order: short, 90% of one maximum repetition (1RM) and 30-sec rest allowed between sets; moderate, 90% of 1RM and 90-sec rest all...

Two experiments were carried out to examine the effect of interruption position and interruption duration on postcompletion error (PCE) occurrences in a game-like procedural task. Experiment 1 showed a significant main effect of interruption position on PCE rate; significantly more PCEs were obtained when the interruption occurred just before the PC step than interruptions at any other position...