96 research outputs found

    How will we fund our roads? A case of decreasing revenue from electric vehicles

    Get PDF
    Abstract Annual expenditures for transportation infrastructure have recently surpassed the funding available through tax and fee collection. One large source of revenue generation for transportation infrastructure is use fees that are charged through taxes on gasoline both on a federal and state level. A massive adoption of electric vehicles (EVs) in the United States would result in significantly lower gasoline consumption and thus reduce the revenue collected to maintain the U.S. transportation infrastructure. We investigate how different vehicles will change the annual fee collected on a marginal basis. In addition, we assess the effects of adoption of alternative vehicles on revenues using several projections of alternative vehicles adoption, both on a state-by-state basis and at the national level. We find that baseline midsize and compact vehicles such as the Toyota Camry and Honda Civic generate approximately 2,5002,500-4,000 in tax revenue over their lifetime. Under the current funding structure, battery-electric vehicles (BEVs) such as the Nissan Leaf generate substantially less at 400400-1,300, while plug-in hybrid electric vehicles (PHEVs) such as the Chevrolet Volt generate 1,5001,500-2,700. Even in states with high lifetime fees due to fuel taxes, such as California, revenue generation can be upwards of 50% lower than in states with high registration fees such as Colorado. Total annual revenue generation decreases by about 200millionby2025asaresultofEVadoptioninourbasecase,butinprojectionswithlargeradoptionofalternativevehiclescouldleadtorevenuegenerationreductionsaslargeas200 million by 2025 as a result of EV adoption in our base case, but in projections with larger adoption of alternative vehicles could lead to revenue generation reductions as large as 900 million by 2025. Potential schemes that charge user fees on alternative fuel vehicles to overcome the decrease in revenue include a flat annual registration fee at 0.6% of the vehicle's manufacturer suggested retail price (MSRP) or 2¢ per mile fee

    Prevalence and determinants of dietary supplement and non-prescription medicine use by men and women over 53 years old in Taiwan. Results from a population-based cross-sectional survey

    Full text link
    This study investigated the prevalence and determinants of the use of dietary supplements and non-prescription medicines by older adults in Taiwan. Methods:  Data are from the 1999 Survey of Health and Living Status of the Elderly in Taiwan. The survey involved a national random sample of 2360 men and 2080 women, 53 years or older. Results:  Overall, 32.4% of elderly men and 42.7% of elderly women used at least one kind of dietary supplement during the past 12 months. Approximately 16% of elderly men and 19% of elderly women used multivitamin and mineral supplements, 10.5 and 22% used calcium, and 10 and 14% used vitamin E, respectively. Conclusions:  The rates of supplement use are generally lower than those observed in the USA but comparable to that in other industrialised countries. Elderly who are females or who are more highly educated or physically more active are more frequent supplement users.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/72609/1/j.1741-6612.2006.00183.x.pd

    Caenorhabditis elegans dnj-14, the orthologue of the DNAJC5 gene mutated in adult onset neuronal ceroid lipofuscinosis, provides a new platform for neuroprotective drug screening and identifies a SIR-2.1-independent action of resveratrol

    Get PDF
    Adult onset neuronal lipofuscinosis (ANCL) is a human neurodegenerative disorder characterized by progressive neuronal dysfunction and premature death. Recently, the mutations that cause ANCL were mapped to the DNAJC5 gene, which encodes cysteine string protein alpha. We show here that mutating dnj-14, the Caenorhabditis elegans orthologue of DNAJC5, results in shortened lifespan and a small impairment of locomotion and neurotransmission. Mutant dnj-14 worms also exhibited age-dependent neurodegeneration of sensory neurons, which was preceded by severe progressive chemosensory defects. A focussed chemical screen revealed that resveratrol could ameliorate dnj-14 mutant phenotypes, an effect mimicked by the cAMP phosphodiesterase inhibitor, rolipram. In contrast to other worm neurodegeneration models, activation of the Sirtuin, SIR-2.1, was not required, as sir-2.1; dnj-14 double mutants showed full lifespan rescue by resveratrol. The Sirtuin-independent neuroprotective action of resveratrol revealed here suggests potential therapeutic applications for ANCL and possibly other human neurodegenerative diseases

    Green Charging of Electric Vehicles Under a Net-Zero Emissions Policy Transition in California

    Get PDF
    UC-ITS-2020-08California has many aggressive climate policies, primarily aimed at individual sectors. This study explores untapped policy opportunities for interactions between sectors, specifically between the transportation and the electricity grid. As electric vehicles become more prevalent, their impact on the electricity grid is directly related to the aggregate patterns of vehicle charging. Even without vehicle-to-grid services, shifting of charging patterns can be a potentially important resource to alleviate issues such as renewable intermittency. This study compares, through modeling, projected emissions reductions from managed vs. unmanaged charging. The lion\u2019s share of emissions reduction in the light-duty transportation sector in California will come from electrification, with a cumulative 1 billion tons of CO2 reduction through 2045. Decarbonization of the current grid leads to an additional savings of 125 million tons of CO2 over the same time-period. Potential state policies to exploit synergies between transportation electrification and grid decarbonization could reduce cumulative emissions by another 10 million tons of CO2. These policies include strategic deployment of charging infrastructure, pricing mechanisms, standardizing grid interaction protocols, and supporting grid infrastructure requirements

    What do you mean, I have a right to health? Participatory action research on health and human rights

    Get PDF
    What does the right to health mean to people who face inequalities and may struggle to access support? This is a pressing issue in Scotland where there is a national commitment to human rights, but where deep seated health inequalities are a major public health concern. The right to the highest attainable standard of health is recognised within the European Convention on Economic, Social and Cultural Rights and should be equally available, accessible, acceptable and of good quality to everyone
    corecore