44 research outputs found

    Work Sanctions Under Welfare Reform: Are They Helping Women Achieve Self-Sufficiency?

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    The focus of this thesis has been to determine the usable voltage range of carbon-based supercapacitors (SC). Supercapacitors are a relatively new type of capacitors with a vast increase in capacitance compared to capacitors which utilize a dielectric as charge separator. A SC consists of two electrodes and an electrolyte separating the electrodes. The charges are stored by electrostatic forces in the interface between the electrode and the electrolyte, forming the so called electrochemical double-layer (EDL). With porous electrodes the effective surface area of the interfacial zone can be made very large, giving SCs a large storage capacity. The limiting factors of a SC is the decomposition potential of the electrolyte and the decomposition of the electrodes. For commercially manufactured SCs the electrolyte is usually an organic solvent, which has a decomposition potential of up to 2.7-2.8 V. Compared to aqueous electrolytes with a thermodynamic limit of 1.23 V. The drawback of using non-aqueous electrolytes is that they are not environmentally friendly, and they increase the production cost. It is claimed that the voltage range can be up to 1.9 V using aqueous electrolytes. Some researchers have focused on aqueous electrolytes for these reasons. In this thesis two different electrolytes were tested to determine if the voltage range could be extended. The experiments were conducted using a three electrode cell and performing cyclic voltammogram measurements (CV). The carbon electrodes were made of  two different sources of grahite, battery graphite or exfoliated graphite, and nano fibrilated cellulose was added to increase the mechanical stability. The results show that the oxidation potential of the carbon electrode was the positive limit. A usable potential of about 1 V was shown. However, when cycling the electrodes to potentials below the decomposition limit, for hydrogen evolution, interesting effects were seen. A decrease in reaction kinetics, indicating a type of conditioning of the electrode was observed. An increase in charge storage capacitance was also observed when comparing the initial measurements with the final, probably corresponding to an increase in porosity.KEPS projekt Sundsvall Mitt Universite

    Public Voices and Public Policy: Changing the Societal Discourse on Welfare

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    Much of the public discourse on welfare reform is subjective and value laden, a composite of socially constructed stories and myths that support the dominant ideology. This article reports on a study that examines the language used by government officials, poverty experts, advocates and others to discuss welfare reform. Statements made about welfare reform were extracted from the Washington Post and the New York Times and analyzed using qualitative content analysis. Dissecting the public language of welfare provides insight into how prevailing ideologies are communicated and reinforced, and how they can be changed

    Social Justice and the Supreme Court: Lessons from the Past

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    This article revisits over sixty years of Supreme Court decisions that have affected the poor and racial minorities, using a novel approach that considers the synergistic relationship between different doctrinal areas rather than focusing on one area. Specifically, I appraise the Supreme Court’s doctrinal contributions from 1953 to the present across three foundational elements of social justice on behalf of the poor and people of color: the school integration cases under the Equal Protection Clause, a series of cases under the Fourth Amendment which sanctioned the police tactic of stop-and-frisk, and attempts to secure economic security for the poor through the Constitution under the Due Process and Equal Protection Clauses. I find that the Warren Court, which is widely considered the most progressive court in U.S. history, failed in several respects. It damaged, rather than abetted, the cause of economic justice. And what it gave to Black children in terms of educational opportunity, it took away from their future selves, their adult community members, and their caretakers by facilitating the mass incarceration of Black men through the practice of stop- and-frisk. I also show how the conservative Courts that followed diluted any gains from this era. I conclude that the Supreme Court has been more foe than friend, and has abandoned, rather than protected, the poor and racial minorities. I draw from this history lessons for the present, including strategies for advancing social justice in the current political and legal environment
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