Firms that are located within industry clusters tend to make more acquisitions than their counterparts in the same industry that are not located within a cluster. As we show, if this increased tendency to acquire other firms arises because locating close to other industry participants facilitates acquisitions (e.g., by facilitating the acquisition of information), then firms located within clus...

Lebowitz MD, et al. Collaborative study to assess risk of lung disease in Pi MZ phenotype subjects. We read with interest the article by Farman and Speirl in which they stated that atypical roentgenographic presentation of lung tuberculosis is still uncommon in adults. This is in contrast with other studies2-5 in which an increased frequency of unusual presentations similar to those in childhoo...

OBJECTIVE: Macrosomia is strongly associated with a range of adverse maternal and neonatal outcomes. The effectiveness screening remains controversial because expecting macrosomic fetus affects intrapartum management, promoting elective cesarean sections. This study aims to identify differences in outcomes management among cases predicted unpredicted macrosomia. STUDY DESIGN: retrospective 779 ...

Does risk aversion amplify business cycle downturns? I study the risk exposure of CEOs and its effect on firm investment in times of high macroeconomic uncertainty. Exploiting exogenous variation in CEO equity ownership, I show that firms with larger CEO stakes decrease investment significantly more in periods of high uncertainty. I consider whether better shareholder alignment explains this fi...

OBJECTIVE Ultrasound estimating of fetal weight is one of the most frequent examinations during pregnancy. Hitherto, foreign fetometry curves have mostly been used in Poland as there are no national available reference charts that are based on ultrasound fetal biometry. The aim of the present study was to construct new charts based on ultrasound fetometry reference for Polish population. STUD...

OBJECTIVE To compare the accuracy of clinical and ultrasonographic (USG) estimation of fetal weight in non-complicated, term pregnancies. MATERIALS AND METHODS Two hundred term pregnant women were included in the study. We used three formulae for the estimation of fetal weight at term; the Hadlock formula for the USG method, and two different formulas for clinical methods, maternal symphysis-...