Using data from the 1990 and 1993 Survey of Income and Program Participation, this paper attempts to examine how job mobility among disabled workers changed in the early 1990s and to disentangle the American with Disabilities Act (ADA) effects from the macroeconomic effects on this change of job mobility. This paper finds that the job mobility among disabled workers improved but there is no evi...

Studied in this paper is the well-posedness of Cauchy problem for coupled KdV-KdV systems \[ u_t+a_1u_{xxx} = c_{11}uu_x+c_{12}vv_x+d_{11}u_{x}v+d_{12}uv_{x}, \quad u(x,0)= u_0(x) \] v_t+a_2v_{xxx}= c_{21}uu_x+c_{22}vv_x +d_{21}u_{x}v+d_{22}uv_{x}, v(x,0)=v_0(x)\] posed on torus $\mathbb{T}$ spaces {\cal H}^s_1:=H^s_0 (\mathbb{T})\times H^s_0 (\mathbb{T}), H}^s_2:=H^s_0 H^s(\mathbb{T}), H}^s_3:...

The nano-to-micro mesoscale is crucial for cementitious materials; here reactions and interactions between molecules produce complex mechanisms that determine the behavior of cement minerals, especially C-S-H. This manuscript reviews current state art in coarse-grained simulations These leverage a rigorous statistical mechanical framework, linking atomistic description with modelling through se...

gracilariopsis persica (rhodophyta) is one of the most abundant algae, introduced newly from the indian ocean. in this study,   the main sterols of the algae have been isolated and identified. separation and purification of the compounds was carried out on silica gel and sephadex lh20 column chromatography (cc) and high performance liquid chromatography (hplc) to obtain five pure compounds 1-5....

the goal of this article is mapping urban management science. the main question of the research is “what are the subject areas of urban management science and how is the relation between these subject areas?” the map of urban management science can help to recognize urban management and its subject areas and can help policy makers to get familiar with the priorities in this subject area. for th...