In this paper, we consider three U.S. public policies that potentially influence the work decisions of mothers of infants—parental leave laws, exemptions from welfare work requirements, and child care subsidies for low-income families. We estimate the effects of these policies on the timing of work participation after birth, and on a range of outcomes in the subsequent four years, using a group...

Parental Leave – A Policy Evaluation of the Swedish “Daddy-Month” Reform Many countries are trying to incentivize fathers to increase their share in parental leave and in household work to improve female labor market opportunities. Our unique data set stems from a natural experiment in Sweden. The data comprises all children born before (control group) and after the reform (treatment group) in ...

We introduce a real-time method to monitor the evolution of oak aromas during the oak toasting process. French and American oak wood boards were toasted in an oven at three different temperatures, while the process-gas was continuously transferred to the inlet of a proton-transfer-reaction time-of-flight mass spectrometer for online monitoring. Oak wood aroma compounds important for their senso...

D. S. Kim,1,* H. L. Smith,1 J. L. Niedziela,2 C. W. Li,3 D. L. Abernathy,4 and B. Fultz1 1Department of Applied Physics and Materials Science, California Institute of Technology, Pasadena, California 91125, USA 2Instrument and Source Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA 3Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, Tenn...

C. W. Li,1,2,* H. L. Smith,2 T. Lan,2 J. L. Niedziela,3 J. A. Muñoz,2 J. B. Keith,2 L. Mauger,2 D. L. Abernathy,4 and B. Fultz2 1Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee, 37831, USA 2Department of Applied Physics and Materials Science, California Institute of Technology, Pasadena, California, 91125, USA 3Instrument and Source Division, Oak R...

Dietary specialization is thought to be rare in mammalian herbivores as a result of either a limitation in their detoxification system to metabolize higher doses of plant secondary compounds or deficiencies in nutrients present in a diet composed of a single species of plant. Neotoma macrotis is an oak specialist, whereas Neotoma lepida is a dietary generalist when sympatric with N. macrotis. W...

The first requirement—competitive oak regeneration sources —is a restatement of the First Law of Oak Silviculture; i.e., successful oak regeneration after harvest will come from advance reproduction that exists in the current stand and stump sprouts from trees that are harvested from the current stand. I will discuss progress that has been made in assessing (1) the competitiveness of oak regene...

background persian oak (quercus brantii) belongs to the fagaceae family. it is a medicinal plant which is commonly used by the tribes in south western iran to treat inflammatory and gastric ulcers. objectives the aim of this study was to evaluate the effectiveness of persian oak ointment on dermal wound healing in rats. materials and methods for making full-thickness wounds in rats, the excisio...

The effects of raw and sodium hydrogen carbonate-treated oak acorn were evaluated on broiler chicken performance and cecal flora. A total of 340 one-day-old broiler chicks were used in a completely randomized design with five experimental treatments and four replicates with 17 birds each. A corn-based diet served as the control and four treatment groups were diets containing 20 or 25% raw or tr...

D.S. Kim, ∗ O. Hellman, J. Herriman, H.L. Smith, J.Y.Y. Lin, N. Shulumba, J.L. Niedziela, C.W. Li, D.L. Abernathy, and B. Fultz California Institute of Technology, Department of Applied Physics and Materials Science, Pasadena, California 91125, USA Neutron Data Analysis and Visualization Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA California Institute of Technology,...