Soka University of America is a university located in Aliso Viejo, California, United States. The university's mission is to "foster of a steady stream of global citizens committed to living a contributive life," with an emphasis on principles of pacifism, human rights, and the creative coexistence of nature and humanity.It has a graduate and an undergraduate program.A much larger and older sister school, Sōka University of Japan, is located in Hachiōji, Tokyo. SUA encompasses a four-year liberal arts college and an ESL Teaching graduate school. SUA hosts the Pacific Basin Research Center and the academic journal Annals of Scholarship. The school is noted for being in the top 3 in terms of freshman's happiness in the United States. Wikipedia.
Hamersley M.R.,Soka University of America |
Turk K.A.,University of California at Santa Cruz |
Leinweber A.,University of California at Los Angeles |
Gruber N.,University of California at Los Angeles |
And 4 more authors.
Aquatic Microbial Ecology | Year: 2011
We measured pelagic dinitrogen (N2) fixation by incorporation of 15N2 during regular cruises over 4 yr to deep hypoxic basins in the Southern California Bight, USA. N2 fixation in the photic zone was dominated (80%) by nanoplankton (<10 μm). N2 fixation rates in surface waters were near the upper range measured for nanoplankton in tropical waters, averaging 5.8 μmol m-3 d -1 at the San Pedro Ocean Time Series (SPOTS) station, and 2.4 μmol m-3 d-1 at the Santa Monica Bay Observatory (SMBO) station, with a maximum at SPOTS of 35 μmol m-3 d-1. Quantitative polymerase chain reaction (qPCR) assays and nested PCR-based clone libraries targeting the nitrogenase gene nifH indicate that the uncultivated unicellular cyanobacterial group A (UCYN-A) is an abundant diazotroph in the photic zone. Although N2 fixation rates were highest at the surface, mean N2 fixation averaged 0.07 μmol m-3 d-1 at depths of 500 and 885 m within hypoxic basin waters (<10% O2 saturation). When integrated over the aphotic water column, this deep N 2 fixation may account for as much as one-third of the total areal N2 fixation, estimated at 150 μmol N m-2 d -1. These deep hypoxic N2 fixers were an assemblage of heterotrophic bacteria, including Alpha- and Gammaproteobacteria and putative sulfate-reducing bacteria. Our results suggest that N2 fixation could play a role in other hypoxic, high-nitrate waters. © Inter-Research 2011. Source
Padron J.A.G.,Soka University of America
Natural Resources Journal | Year: 2016
The recent approval of a Clean Energy Certificates market in Mexico is part of the broad Energy Reform in the country since the end of 2013. Clean Energy Certificates create an incentive for new investment and a source of extra income for green energy producers in the electricity market. Mexico’s scheme is based on similar Green Trade Certificates schemes, which promote investment in renewable energy by setting quotas on electricity producers and requiring certain electricity users to buy certificates. This article briefly looks at the early adopters, Sweden and later Norway, where a similar scheme has been implemented since 2003. The Nordic scheme, along with other policy measures, has proven effective in increasing the share of renewables. This article analyzes the Mexican Energy Reform’s approach to renewable energy, and explains how Mexico can learn from its Swedish and Norwegian counterparts. © 2016, University of New Mexico. All rights reserved. Source
Bonnet S.,University of New Caledonia |
Dekaezemacker J.,University of New Caledonia |
Dekaezemacker J.,Max Planck Institute for Marine Microbiology |
Turk-Kubo K.A.,University of California at Santa Cruz |
And 5 more authors.
PLoS ONE | Year: 2013
We examined rates of N2 fixation from the surface to 2000 m depth in the Eastern Tropical South Pacific (ETSP) during El Niño (2010) and La Niña (2011). Replicated vertical profiles performed under oxygen-free conditions show that N2 fixation takes place both in euphotic and aphotic waters, with rates reaching 155 to 509 μmol N m -2 d-1 in 2010 and 24±14 to 118±87 μmol N m-2 d-1 in 2011. In the aphotic layers, volumetric N 2 fixation rates were relatively low (<1.00 nmol N L-1 d-1), but when integrated over the whole aphotic layer, they accounted for 87-90% of total rates (euphotic+aphotic) for the two cruises. Phylogenetic studies performed in microcosms experiments confirm the presence of diazotrophs in the deep waters of the Oxygen Minimum Zone (OMZ), which were comprised of non-cyanobacterial diazotrophs affiliated with nifH clusters 1K (predominantly comprised of α-proteobacteria), 1G (predominantly comprised of γ-proteobacteria), and 3 (sulfate reducing genera of the δ-proteobacteria and Clostridium spp., Vibrio spp.). Organic and inorganic nutrient addition bioassays revealed that amino acids significantly stimulated N2 fixation in the core of the OMZ at all stations tested and as did simple carbohydrates at stations located nearest the coast of Peru/Chile. The episodic supply of these substrates from upper layers are hypothesized to explain the observed variability of N2 fixation in the ETSP. © 2013 Bonnet et al. Source
Busenberg G.J.,Soka University of America
Review of Policy Research | Year: 2011
Since 1977, oil produced in northern Alaska has posed a major environmental threat across large areas of Alaska while simultaneously playing a dominant role in the economy of Alaska. This enduring dilemma was created by the building of the Trans-Alaska Pipeline System to transport oil produced on the North Slope of Alaska, a region containing the largest oil field ever developed in North America. The Trans-Alaska Pipeline System transports oil through an 800-mile pipeline and ocean-going oil tankers. This complex technological system poses an enduring risk of environmentally damaging oil spills in Alaska. This study applies the punctuated equilibrium theory of policy change to examine the processes and enduring consequences of the national policy reforms that allowed the building of the Trans-Alaska Pipeline System. © 2011 by The Policy Studies Organization. Source
Mazumder D.B.,Soka University of America
Energy Economics | Year: 2014
This paper provides an analytical framework to examine the relative efficiencies of a revenue-neutral biofuel subsidy and a gas tax in the presence of pre-existing distortions and growing substitutability between fuels. Both policies are set to achieve a targeted reduction in gasoline use at the state level. The model is then calibrated for a small open economy such as Illinois which is one of the largest producers of biofuels such as ethanol in the U.S. The main result of the paper shows that raising the biofuel subsidy use reduces overall welfare by more than a higher gas tax, both aimed to achieve a targeted reduction in pure gasoline. The relative efficiency of the higher gas tax is primarily due to it exacerbating the pre-existing distortion in the biofuel market by less than the subsidy. Moreover, for current parameter estimates welfare improving policy combinations for achieving a targeted amount of energy security are higher gas taxes combined with lower biofuel subsidies and a lower tax on income. However, the preference for a gasoline-labor tax swap shrinks as the elasticity of substitution between the two fuels rises. © 2014 Elsevier B.V. Source