Diagnostic criteria patterns of U.S. children with Metabolic Syndrome: NHANES 1999–2002

© 2007 Kranz et al; licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution Licens

The German Part-Time Wage Gap: Bad News for Men?

Despite the increasing occurrence of part-time employment in Germany, the effects on wage rates are rarely studied. I therefore use GSOEP panel data from 1984 to 2010 and apply different econometric approaches and definitions of part-time work to measure the so-called part-time wage gap of both, men and women. A very robust finding is that part-time working men are subject to higher wage cuts than women. The specification accommodating all available information and the biasing effect of unobserved individual characteristics yields a wage cut of about 10 percent in West and East Germany. Furthermore, the type of contract makes a big difference. While marginal employees own lower wage rates, irrespective of region and sex, female part-time employees covered by social security have no significant drawback once differences in firm and job characteristics (in OLS regressions) or individual fixed-effects (in panel regressions) are taken into account. The results also reveal that work experience in part-time employment generates no positive returns, implying that reduced working hours do not only cause short-term effects. Another novel of my study is the look at the part-time wage gap over time. While there are good reasons to believe that the part-time wage gap shrinks, the empirical evidence reveals that wage differentials in West-Germany increased over time. This finding also surprises in light of the supposition that the wage penalty tends to be lower in times when part-time work is widespread and employers get accustomed to alternative working time schemes

Financial and corporate social performance in the UK listed firms: the relevance of non-linearity and lag effects

Using environmental, social and governance scores compiled by Reuters Datastream for each company’s corporate social performance (CSP), we examine the relationship between CSP and corporate financial performance (CFP) of 314 UK listed companies over the period 2002–2015. We further evaluate the relationship between prior and subsequent CFP and prior and subsequent CSP. Based on the system-GMM estimation method, we provide direct evidence that suggests that while CFP and CSP can be linked linearly; however, when we examine the impact of CSP on CFP, the association is more non-linear (cubic) than linear. Our results suggest that firms periodically adjust their level of commitment to society, in order to meet their target CSP. The primary contributions of this paper are testing (1) the non-monotonous relationship between CSP and CFP, (2) the lagged relationship between the two and the optimality of CSP levels, and (3) the presence of a virtuous circle. Our results further suggest that CSP contributes to CFP better during post-crisis years. Our findings are robust to year-on-year changes in CFP and CSP, financial versus non-financial firms, and the intensity of corporate social responsibility (CSR) engagement across industries

International differences in the family gap in pay: the role of labor market institutions

Using microdata for 35 countries over the period 1985-1994-2002 we find that labor market institutions traditionally associated to more compressed wage structures are associated to a higher family gap. Our results indicate that these policies reduce the price effect of having children but aggravate the human capital loss due to motherhood. We also find evidence that policies that help women continue in the same job after childbirth decrease the family gap. Of all the countries we study, mothers in Southern Europe suffer the biggest family gap and our analysis indicates that this is due to the bad combination of labor market policies in these countries. Our results are robust to specification changes and indicate that the main reason mothers lag behind other women in terms of earnings is the loss of accumulated job market experience caused by career breaks around childbirth

In situ monitoring of Lentilactobacillus parabuchneri biofilm formation via real-time infrared spectroscopy

Foodborne pathogenic microorganisms form biofilms at abiotic surfaces, which is a particular challenge in food processing industries. The complexity of biofilm formation requires a fundamental understanding on the involved molecular mechanisms, which may then lead to efficient prevention strategies. In the present study, biogenic amine producing bacteria, i.e., Lentilactobacillus parabuchneri DSM 5987 strain isolated from cheese were studied in respect with biofilm formation, which is of substantial relevance given their contribution to the presence of histamine in dairy products. While scanning electron microscopy was used to investigate biofilm adhesion at stainless steel surfaces, in situ infrared attenuated total reflection spectroscopy (IR-ATR) using a custom flow-through assembly was used for real-time and non-destructive observations of biofilm formation during a period of several days. The spectral window of 1700–600 cm−1 provides access to vibrational signatures characteristic for identifying and tracking L. parabuchneri biofilm formation and maturation. Especially, the amide I and II bands, lactic acid produced as the biofilm matures, and a pronounced increase of bands characteristic for extracellular polymeric substances (EPS) provide molecular insight into biofilm formation, maturation, and changes in biofilm architecture. Finally, multivariate data evaluation strategies were applied facilitating the unambiguous classification of the observed biofilm changes via IR spectroscopic data