Among the many purely magical methods of pregnancy diagnosis practised by the Ancient Egyptians, were tests based on the germination of seeds and rate of plant growth when treated with pregnancy urine (Bayon, I939). That there is some scientific basis for these tests is shown by the general agreement that a factor contained in pregnancy exerts a beneficial effect on plant growth. It is of inter...

In the previous review, the physical aspect of heavy particles, with a focus on the carbon beam was introduced. Particle beam therapy has many potential advantages for cancer treatment without increasing severe side effects in normal tissue, these kinds of radiation have different biologic characteristics and have advantages over using conventional photon beam radiation during treatment. The re...

Among the many purely magical methods of pregnancy diagnosis practised by the Ancient Egyptians, were tests based on the germination of seeds and rate of plant growth when treated with pregnancy urine (Bayon, I939). That there is some scientific basis for these tests is shown by the general agreement that a factor contained in pregnancy exerts a beneficial effect on plant growth. It is of inter...

In this paper we briefly discuss various forms of randomness that physics, mathematics and computing have proposed. Classical and quantum physics view randomness, that we describe as unpredictability in the intended theory, in di↵erent ways. Computing allows to discuss this issue in an abstract, yet very expressive mean, which yields useful hierarchies of randomness and may help to relate its v...

We describe a new approach for comparing cellular-biological networks and finding conserved regions in two or more such networks. Our distance measure is based on the description length of one network, given the description of the other one, and it is efficiently computable. We employ these distances as inputs for generating phylogenetic trees. Using KEGG's metabolic networks as our starting po...

When compared to photon beams, particle beams have distinct spatial distributions on the energy depositions in both the macroscopic and microscopic volumes. In a macroscopic volume, the absorbed dose distribution shows a rapid increase near the particle range, that is, Bragg peak, as particle penetrates deep inside the tissue. In a microscopic volume, individual particle deposits its energy alo...

In this report, we propose a photonic crystal heteroslab-edge microcavity design for optical index sensing, where the high quality Q surface mode is confined by mode-gap effect. By optimizing the barrier region of the microcavity, high Q factor of 6.6 105 is obtained in simulations. Lasing actions with high Q factor and low threshold of 6400 and 0.55 mW are obtained from the real devices. High ...

We propose and analyze a new photonic crystal cavity design that supports a dipole mode with a quality factor greater than 20,000. Such a high quality factor is obtained by precise tuning of the cavity length with minimal disruption of the surrounding photonic crystal. A fabrication procedure based on dry etching of InGaAsP material in HI/H2/Ar is used to demonstrate photonic crystal lasers wit...

We have measured the mechanical dissipation in a sample of fused silica drawn into a rod. The sample was hung from a multiple-bob suspension, which isolated it from rubbing against its support, from recoil in the support structure, and from seismic noise. The quality factor, Q, was measured for several modes with a high value of 57 million found for mode number 2 at 726 Hz. This result is about...

We experimentally demonstrate an ultra high Q/V nanocavity on SOI substrate. The design is based on modal adaptation within the cavity and allows to measure a quality factor of 58.000 for a modal volume of 0.6(lambda/n)(3) . This record Q/V value of 10(5) achieved for a structure standing on a physical substrate, rather than on membrane, is in very good agreement with theoretical predictions al...