Competition Policy and Regulation in Ports and Shipping

The country's archipelagic configuration requires an efficient maritime transport infrastructure composed of ports and shipping for growth and socioeconomic integration. This paper examines competition policy and the regulatory framework of the port and shipping sectors. It assesses the policies and programs of the government in promoting competition in these sectors and recommends areas for policy and regulatory reform. After a brief description of the analytical underpinnings of competition policy and regulation, the paper reviews the present state of competition and regulation in Philippine ports and interisland shipping to identify emerging issues that call for policy action. It provides specific recommendations for policy and regulatory reform.competition policy, regulatory framework, maritime transport, ports and inter-island shipping, market contestability

Competition Policy and Regulation in Ports and Shipping

The Philippines is an archipelago of approximately 7,107 islands. It has a long coastline extending to 235,973 square kilometers which is longer than that of the United States (UNESCAP 2002b). The countrys archipelagic configuration requires an efficient maritime transport infrastructure composed of ports and shipping for growth and socioeconomic integration. The integration of peripheral islands to the urban economic nodes such as Metro Manila, Cebu, Davao and General Santos and the diffusion of investments and economic activities fundamentally count on an efficient road and maritime transport network. This paper examines competition policy and the regulatory framework of the port and shipping sectors. It assesses the policies and programs of the government in promoting competition in these sectors and recommends areas for policy and regulatory reform. After a brief description of the analytical underpinnings of competition policy and regulation the paper reviews the present state of competition and regulation in Philippine ports and inter-island shipping to identify emerging issues that call for policy action. It provides specific recommendations for policy and regulatory reform

The leading Ruelle resonances of chaotic maps

The leading Ruelle resonances of typical chaotic maps, the perturbed cat map and the standard map, are calculated by variation. It is found that, excluding the resonance associated with the invariant density, the next subleading resonances are, approximately, the roots of the equation $z^4=\gamma$, where $\gamma$ is a positive number which characterizes the amount of stochasticity of the map. The results are verified by numerical computations, and the implications to the form factor of the corresponding quantum maps are discussed.Comment: 5 pages, 4 figures included. To appear in Phys. Rev.

Accurate Atmospheric Parameters at Moderate Resolution Using Spectral Indices: Preliminary Application to the MARVELS Survey

Studies of Galactic chemical and dynamical evolution in the solar neighborhood depend on the availability of precise atmospheric parameters (Teff, [Fe/H] and log g) for solar-type stars. Many large-scale spectroscopic surveys operate at low to moderate spectral resolution for efficiency in observing large samples, which makes the stellar characterization difficult due to the high degree of blending of spectral features. While most surveys use spectral synthesis, in this work we employ an alternative method based on spectral indices to determine the atmospheric parameters of a sample of nearby FGK dwarfs and subgiants observed by the MARVELS survey at moderate resolving power (R~12,000). We have developed three codes to automatically normalize the observed spectra, measure the equivalent widths of the indices and, through the comparison of those with values calculated with pre-determined calibrations, derive the atmospheric parameters of the stars. The calibrations were built using a sample of 309 stars with precise stellar parameters obtained from the analysis of high-resolution FEROS spectra. A validation test of the method was conducted with a sample of 30 MARVELS targets that also have reliable atmospheric parameters from high-resolution spectroscopic analysis. Our approach was able to recover the parameters within 80 K for Teff, 0.05 dex for [Fe/H] and 0.15 dex for log g, values that are lower or equal to the typical external uncertainties found between different high-resolution analyzes. An additional test was performed with a subsample of 138 stars from the ELODIE stellar library and the literature atmospheric parameters were recovered within 125 K for Teff, 0.10 dex for [Fe/H] and 0.29 dex for log g. These results show that the spectral indices are a competitive tool to characterize stars with the intermediate resolution spectra.Comment: Accepted for publication in AJ. Abstract edited to comply with arXiv standards regarding the number of character

A tolerance analysis and optimization methodology: the combined use of 3D CAT, a dimensional hierarchization matrix and an optimization algorithm

We propose a methodology in this study for the analysis and the optimization of assembly tolerances. A combination of three components, it involves the use of 3D CAT software, a table referred to as a “dimensional hierarchization matrix” and a tolerance optimization algorithm. The Antolin Group, a Spanish multinational in the automobile components sector, employs this system to optimize tolerance values and to reduce manufacturing costs. The matrix was designed to enable easy identification, in a single table, of all requirements that fail to meet the specifications in the different approximations, prior to the definition of the dimensional and the geometric tolerances that comply with the functional requirements, and to identify which tolerances contribute most to variations in all of the functional conditions of the mechanism. Through its different iterations, this matrix allows us to see which of the tolerances should first be modified to optimize the design requirement specifications. A tolerance optimization algorithm was also defined, which functions with the data from the dimensional hierarchization matrix

Veteran Teacher Perceptions of the Grossmont Model of Peer Assistance and Review. Is it a Viable Alternative to Traditional Evaluation?

This study looked at factors that influenced veteran teacher perceptions of the newly implemented Peer Assistance and Review (PAR) program in the Grossmont Union High School District. More specifically, the study explored (1) reasons why teachers with at least five years of successful teaching experience voluntarily chose to forfeit their regularly scheduled traditional evaluation and substitute it with a peer review, (2) factors that contributed to positive perceptions of the PAR program, (3) factors that contributed to negative perceptions of the PAR program, and (4) perceived differences between the traditional and PAR methods of teacher evaluation. This study incorporated multiple traditions of qualitative research and used guided interviews as data for the interpretive analysis. The study\u27s findings suggest that respondents\u27 views of the traditional approach to teacher evaluation played a critical role in their decision to volunteer for the PAR alternative, as did a simple desire to try something new. The evidence from the study provides tentative support for the premise that respondents view the PAR experience as the preferred method of evaluation. Respondents indicate experiencing (1) an ownership of their professional growth activity, (2) a desire to continue improvements, (3) changes in their classroom practice, (4) an ability to focus on a specific area in their teaching practice, and (5) freedom to take risks without fear of reprisal should efforts to improve result in failure. However, respondents also indicate that the Grossmont Model of PAR (1) requires more time than that normally involved with traditional evaluation, (2) is incorrectly identified as a remediation tool for ineffective teachers, and (3) requires participants to critically assess their teaching practice - a process, according to respondents, that many veteran teachers are unable to honestly perform. Additional research is needed to investigate whether or not PAR will remain the preferred method of evaluation over a longer period of time. This research would involve identifying if increased professional growth opportunities (as a result of PAR activities) favorably affects student achievement

Very Low Mass Stellar and Substellar Companions to Solar-Like Stars From MARVELS V: A Low Eccentricity Brown Dwarf from the Driest Part of the Desert, MARVELS-6b

We describe the discovery of a likely brown dwarf (BD) companion with a minimum mass of 31.7 +/- 2.0 M_Jup to GSC 03546-01452 from the MARVELS radial velocity survey, which we designate as MARVELS-6b. For reasonable priors, our analysis gives a probability of 72% that MARVELS-6b has a mass below the hydrogen-burning limit of 0.072 M_Sun, and thus it is a high-confidence BD companion. It has a moderately long orbital period of 47.8929 +0.0063/-0.0062 days with a low eccentricty of 0.1442 +0.0078/-0.0073, and a semi-amplitude of 1644 +12/-13 m/s. Moderate resolution spectroscopy of the host star has determined the following parameters: T_eff = 5598 +/- 63, log g = 4.44 +/- 0.17, and [Fe/H] = +0.40 +/- 0.09. Based upon these measurements, GSC 03546-01452 has a probable mass and radius of M_star = 1.11 +/- 0.11 M_Sun and R_star = 1.06 +/- 0.23 R_Sun with an age consistent with less than ~6 Gyr at a distance of 219 +/- 21 pc from the Sun. Although MARVELS-6b is not observed to transit, we cannot definitively rule out a transiting configuration based on our observations. There is a visual companion detected with Lucky Imaging at 7.7 arcsec from the host star, but our analysis shows that it is not bound to this system. The minimum mass of MARVELS-6b exists at the minimum of the mass functions for both stars and planets, making this a rare object even compared to other BDs.Comment: 15 pages, 15 figures, 5 tables. Accepted for publication in The Astronomical Journa

Reversible Nanoparticle–Micelle Transformation of Ionic Liquid–Sulfonatocalix[6]arene Aggregates

The effect of temperature and NaCl concentration variations on the self-assembly of 1-methyl-3- tetradecylimidazolium (C14mim+) and 4-sulfonatocalix[6]- arene (SCX6) was studied by dynamic light scattering and isothermal calorimetric methods at pH 7. Inclusion complex formation promoted the self-assembly to spherical nanoparticles (NP), which transformed to supramolecular micelles (SM) in the presence of NaCl. Highly reversible, temperature-responsive behavior was observed, and the conditions of the NP−SM transition could be tuned by the alteration of C14mim+:SCX6 mixing ratio and NaCl concentration. The association to SM was always exothermic with enthalpy independent of the amount of NaCl. In contrast, NPs were produced in endothermic process at low temperature, and the enthalpy change became less favorable upon increase in NaCl concentration. The NP formation was accompanied by negative molar heat capacity change, which further diminished when NaCl concentration was raised