Two-photon polymerization (2PP), also known as two photon lithograpy (2PL) or direct laser writing (DLW) is a microfabrication technique established in the last decade, which combines advantages of 3D-printing with sub-micron resolution.[1] Micromachinery, photonics, surface design, microrobotics, and biomedical sciences are just some fields mostly impacted by technology (see Figure 1). Recent ...

Children with B-progenitor cell acute lymphoblastic leukemia whose lymphoblasts at diagnosis accumulate high levels of methotrexate (MTh) and MTX polyglutamates (MTXPGs) appear to have a good prognosis. This has been attributed to increased sensitivity oftheir blast cells to MTX. However, the proportion of children who are cured of Bprogenitor cell acute lymphoblastic leukemia exceeds the numbe...

Lord (1980) proposed formulas that provide direct relationships between IRT discrimination and difficulty parameters and conventional item statistics. The purposes of the present study were to determine (1) the veracity of the two formulas within the context that Lord proposed, and (2) the robustness of the formulas beyond the initial and restrictive conditions identified by Lord. Simulation an...

Among the many grammatical features which are shared between Hiw and Lo-Toga – the two Oceanic languages spoken in the Torres Islands of Vanuatu – are the semantics of Tense-AspectMood markers, and their effects on the syntax of clause dependency. Even though these two languages possess a wealth of subordinators such as conjunctions or relativizers, two TAM markers show a clear propensity, in f...

We present a cognitive process model of response choice and response time performance data that has excellent psychometric properties and may be used in a wide variety of contexts. In the model there is an accumulator associated with each response option. These accumulators have bounds, and the first accumulator to reach its bound determines the response time and response choice. The times each...