The lateral electrical/electronic conductivity of alkanethiolate-protected gold nanoparticles was evaluated at the air/water interface by using the Langmuir method. For particles with short protecting monolayers (C4Au and C5Au), the current–voltage profiles exhibited ohmic behaviors with conductivity several orders of magnitude smaller than that of bulk gold. The conductivity is found to decrea...

We present an experiment addressed to verify the validity of the entanglement quantifier R, defined as the ratio between single counts and coincidence distribution width for pure biphoton states generated by short pump pulses. We demonstrate that this ratio can be efficient to estimate entanglement degree in frequency domain. Our work has been performed with a femto second pulsed laser pump add...

An effective-medium approach is used to derive a set of coupled-mode equations describing quadratic parametric interactions in a one-dimensional inhomogeneous medium of finite length. The solutions for both copropagating and counterpropagating interactions are used to study the quantum-mechanical process of spontaneous parametric down-conversion (SPDC). An example is studied in which the inhomo...

Protecting children online has been a focus of research in psychiatry and sociology for many years. However, the anonymous nature of the Internet has made finding a solution to the problem of child protection online difficult. The current study proposes going beyond the identification of an individual online predator to the recognition of predatory discourse enacted via coercion within frames o...

The historiography of Banda has paid little attention to the existence women. Stories involving women are mainly about romance, family, and suffering. In reality, “Mama Lima” (groups five women) is very strong in tradition (adat). They carriers knowledge tradition, a consequence matriarchy. determine content implementation adat ceremonies like Buka kampong, forming set social norms customary la...

The study focused on effect of capacity building programme of development agencies on well being of beneficiaries in Niger Delta Nigeria. Data was collected with the aid of structured questionnaire from 271 randomly selected participants involved in capacity building programmes in Niger Delta area of Nigeria. Data were analysed using mean scores and Z test statistics. Findings revealed that bef...

The Frege-Russell view is that existence is a second-order property rather than a property of individuals. One of the most compelling arguments for this view is based on the premise that there is an especially close connection between existence and number. The most promising version of this argument is by C.J.F. Williams (1981, 1992). In what follows, I argue that this argument fails. I then de...

Patterns in nature result from dynamic relationships of forces and constraints. What is analogous for patterns in art? Art is created by human hands motivated by inspiration and thought. It is the product of creativity and skill. Creativity is constrained by cognitive processes and skill by the limits of technology. Based upon the author’s studies of Oriental carpets, this paper suggests that p...