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A Study On The Effects Of E-Navigation On Reducing Vessel Accidents, Sun-Bae Hong
A Study On The Effects Of E-Navigation On Reducing Vessel Accidents, Sun-Bae Hong
World Maritime University Dissertations
The dissertation aims to evaluate how and to what extent e-navigation contributes to reducing accidents for SOLAS ships as well as non-SOLAS ships, hoping that the results are referred to IMO Member States when they are implementing enavigation along with the maritime sectors such as shipping companies, crews on board ships and manufactures developing e-navigation related systems. The study focuses on the potential effects of e-navigation based on tool kits of the IMO e-navigation for SOLAS ships and services of SMART-navigation, which is the Korean approach to implementing the e-navigation concept for both SOLAS ships and non-SOLAS ships. The processes …
Theoretical Review On Indonesian Academic Legal Education In Conjunction With Asean Economic Community Era, Ariawan Gunadi
Theoretical Review On Indonesian Academic Legal Education In Conjunction With Asean Economic Community Era, Ariawan Gunadi
Indonesia Law Review
Indonesia will be welcoming the ASEAN Economic Community in 2015 as a multilateral agreement to create integrated regions such as: (a) a single market and production base, (b) a highly competitive economic region, (c) a region of equitable economic development, and (d) a region fully integrated into the global economy. These characteristics are interrelated and mutually reinforcing in a sense that overall development would not be complete without total completion of the previous sector. This article discusses the participation of Indonesia as part of ASEAN as a single market and production base, through free flow of services which targets higher …
Autonomous Weapons And International Humanitarian Law: Advantages, Open Technical Questions And Legal Issues To Be Clarified, Marco Sassoli
Autonomous Weapons And International Humanitarian Law: Advantages, Open Technical Questions And Legal Issues To Be Clarified, Marco Sassoli
International Law Studies
This contribution argues that autonomous weapons systems may have advantages from the perspective of ensuring better respect for international humanitarian law (IHL). This may be the case if they are one day capable of perceiving the information necessary to comply with IHL, can apply IHL to that information, and if it can be ensured that they will not deviate from the ways in which humans have programmed them. In the view of the author, targeting decisions do not require subjective value judgments a machine would be unable to make. In order to ensure IHL is respected with regard to use …
Insights From A Global Engineering Outreach Course, Randy S. Lewis
Insights From A Global Engineering Outreach Course, Randy S. Lewis
Faculty Publications
A two-semester multi-disciplinary Global Engineering Outreach (GEO) course was initiated in 2007 to provide an opportunity for junior and senior-level engineering and technology students to design and implement humanitarian-based engineering projects in developing communities. Recently, the course was integrated with a sociology course to enhance the educational opportunities between social scientists and engineers. During the GEO course, students work on small-scale projects that are selected in conjunction with members of the developing communities. Students regularly interact with community members during project development. Following the GEO course, students participate in a two-week implementation trip. Learning outcomes associated with the course are …
Contactless Measurement Of Angular Velocity Using Circularly Polarized Antennas, Vit Sipal, Adam Narbudowicz, Max Ammann
Contactless Measurement Of Angular Velocity Using Circularly Polarized Antennas, Vit Sipal, Adam Narbudowicz, Max Ammann
Articles
An innovative method to measure the angular velocity using circularly polarized antennas is proposed. Due to the properties of circular polarization, the angular velocity is frequency modulated (FM) on a wireless carrier. This enables a low-cost precise continuous measurement of angular velocity using a standard FM demodulator. The hardware can be easily adapted for both high and low angular velocity values. The precise alignment angle between the antennas can be determined if the initial antenna orientation is known. The angular error is shown to be
Cyber Sovereignty: The Way Ahead, Eric Talbot Jensen
Cyber Sovereignty: The Way Ahead, Eric Talbot Jensen
Faculty Scholarship
The last few years are full of reports of cyber incidents, some of which have caused significant damage. Each of these cyber events raise important questions about the role and responsibility of States with respect to cyber incidents. The answer to these questions revolves in large part around the international law doctrine of sovereignty. The extent to which nations exercise sovereignty over cyberspace and cyber infrastructure will provide key answers to how much control States must exercise and how much responsibility States must accept for harmful cyber activities when they fail to adequately do so. This article argues that States …
Future War And The War Powers Resolution, Eric Talbot Jensen
Future War And The War Powers Resolution, Eric Talbot Jensen
Faculty Scholarship
Since its passage in 1973 over the veto of then-President Nixon, the War Powers Resolution (WPR) has been laden with controversy. Labeled as everything from ineffective to unconstitutional, the WPR has generally failed in its design to require notification and consultation to Congress by the President. Despite numerous proposals to amend the WPR, it continues to languish in the twilight of Executive war powers, and its future is bleak. With emerging technologies such as drones, cyber tools, nanotechnology, and genomics, the ineffectiveness of the WPR will prove even more profound. The WPR’s reliance on “armed forces” and “hostilities” as triggers …
Seeing Red: Characterizing Historic Bricks At Sylvester Manor, Long Island, Ny 1652-1735, Martin John Schmidheiny
Seeing Red: Characterizing Historic Bricks At Sylvester Manor, Long Island, Ny 1652-1735, Martin John Schmidheiny
Graduate Masters Theses
The goal of this project is to develop a basic material characterization of the bricks excavated at the site of Sylvester Manor on Shelter Island, New York. In the early Manor period of 1650-1690, this early Northern provisioning plantation supplied Barbadian sugar operations and pursued mercantile interests independent of state control. Accounting for the range of production defects and material characteristics of the bricks suggests on-site or local manufacture as a regional ceramic industry developed. Qualitative visual analysis and petrographic thin-sections were used to characterize the internal composition, variation and production evidence in the bricks. Interpreting the results of this …
Qatari Foreign Policy And The Arab Spring: From Mediation To Intervention, Basma Mahmoud Eletreby
Qatari Foreign Policy And The Arab Spring: From Mediation To Intervention, Basma Mahmoud Eletreby
Theses and Dissertations
This thesis examines the controversial role that Qatar has been playing in the Arab Spring, specifically from 2011 to 2013. Evidently, Qatari foreign policy will be assessed to comprehend the power this small state has been gaining in Middle East politics in a region plagued by never ending manifestations of power struggles and turbulent developments. The case studies of Egypt, Libya and Syria in which Qatari foreign policy involvement deployed the same rationale will be investigated to examine the increasing involvement of Qatar in Middle East politics. It concludes that the foreign policy of Qatar was both opportunistic and pro-Islamist …
Economic Development In The Massachusetts Life Sciences Cluster: Shared Prosperity Or A Big Tradeoff?, Brandynn Holgate
Economic Development In The Massachusetts Life Sciences Cluster: Shared Prosperity Or A Big Tradeoff?, Brandynn Holgate
Graduate Doctoral Dissertations
Policies aimed at economic development can be judged by two criteria: efficiency and equity. -Policies that result in both greater efficiency and greater equity lead to shared economic prosperity for a region. The innovation economy includes some of the fastest growing industries which generate new wealth in the U.S. Within this context, the life sciences industry has been a prime target for economic development for individual states. This case study examines the economic development agenda in the Massachusetts life sciences industry and whether these efforts result in both sustaining competitive advantage (i.e., continuous innovation that improves productivity and product and …
Congenital Epidermoid Cyst Results In Muscle Fusion Defect In The Upper Lip, Fatih Dogan, Ibrahim Hakan Bucak
Congenital Epidermoid Cyst Results In Muscle Fusion Defect In The Upper Lip, Fatih Dogan, Ibrahim Hakan Bucak
Materials Science and Engineering Faculty Research & Creative Works
Epidermoid cysts are rarely detected malformations in the oral cavity. Their development sites are the sublingual, submaxillary, and submandibular spaces. In this paper, we report a three-month-old infant who was admitted to our hospital due upper lip swelling. Magnetic resonance imaging showed that she had a two-centimeter cystic lesion and fusion defects of orbicularis oris muscle. The cyst was surgically removed, and histopathological diagnosis was “epidermoid cyst.” In recent literature, we could not find reports related to orbicularis oris muscle fusion defects because of epidermoid cyst.
Thermal Feasibility Analysis Of Low Heat Rejection Engine, Peter Johnston Northrop
Thermal Feasibility Analysis Of Low Heat Rejection Engine, Peter Johnston Northrop
Open Access Theses
This thesis describes the computational fluid dynamics (CFD) directed analysis used to solve an overheating problem occurring during the warm up period of the crossbred ZKA26 engine in previous research. Internal combustion engine powered generator sets are the primary choice for worldwide operation. Of these generator sets, hardly any use internal combustion automobile engines that are modified beyond the specifications of the manufacturer. These specifications, while well qualified for their intended purpose, are poorly qualified for steady RPM operation as they are used in generator operation. This lack of qualification results in key losses of operational efficiency. This research effort …
Religiosity In Constitutions And The Status Of Minority Rights, Brandy G. Robinson
Religiosity In Constitutions And The Status Of Minority Rights, Brandy G. Robinson
Cultural Encounters, Conflicts, and Resolutions
Minority rights and religion have never been topics that are simultaneously considered. However, arguably, the two have relevance, especially when combined with the topic and theory of constitutionalism. Historically and traditionally, minorities have been granted certain rights and have been denied certain rights under various constitutions. These grants and denials relate to cultural differences and values, arguably relating to a culture’s understanding and interpretation of religion.
This article explores the relationship and status of minority rights as it relates to religiosity and constitutionalism. Essentially, there is a correlation between these topics and research shows where certain nations have used religion …
Wyoming's Big Horn General Stream Adjudication, Jason Anthony Robison
Wyoming's Big Horn General Stream Adjudication, Jason Anthony Robison
Faculty Articles
The State of Wyoming's general stream adjudication in the WindBig Horn Basin ÔÇ£Big HornÔÇØ adjudication effectively concluded in September 2014 after thirtyseven years Lengthy costly and often contentious this proceeding addressed diverse water rights claims submitted by over 20000 parties Perhaps most notable were claims for reserved rights asserted by the Eastern Shoshone and Northern Arapaho tribes on the Wind River Indian Reservation ' claims that when considered by the US Supreme Court in Wyoming v United States raised salient issues regarding the practicably irrigable acreage PIA standard and related sensitivity doctrine then espoused by certain members of the Court …
Nanoparticle Dispersions With Ionic Liquid-Based Stabilizers, John Texter
Nanoparticle Dispersions With Ionic Liquid-Based Stabilizers, John Texter
Patents
The disclosure generally relates to a dispersion of nanoparticles in a liquid medium. The liquid medium is suitably water-based and further includes an ionic liquid-based stabilizer in the liquid medium to stabilize the dispersion of nanoparticles therein. The stabilizer can be polymeric or monomeric and generally includes a moiety with at least one quaternary ammonium cation from a corresponding ionic liquid. The dispersion suitably can be formed by shearing or otherwise mixing a mixture/combination of its components. The dispersions can be used to form nanoparticle composite films upon drying or otherwise removing the liquid medium carrier, with the stabilizer providing …
The Economic And Tax Revenue Impact Of The Nebraska Wind Energy Industry, Eric Thompson
The Economic And Tax Revenue Impact Of The Nebraska Wind Energy Industry, Eric Thompson
Bureau of Business Research Publications
This study by the University of Nebraska-Lincoln Bureau of Business Research (UNL-BBR) explores the economic impact from the construction and operation of wind farms in Nebraska, focusing on those farms with 10 or more wind turbines. The study estimates: 1) the statewide economic and tax revenue impact of the Nebraska wind industry as it is currently configured, 2) the local economic and tax revenue impact of the existing industry in the counties where it operates and 3) the potential statewide economic impact from expansion of the industry through the addition of new wind farms.
Table ES.1 summarizes the impacts. Operation …
State V. Howell Appellant's Brief Dckt. 42277
State V. Howell Appellant's Brief Dckt. 42277
Idaho Supreme Court Records & Briefs, All
No abstract provided.
Conventional Latex/Nanolatex Blends, Frank N. Jones, Ravi G. Joshi, Theodore Provder
Conventional Latex/Nanolatex Blends, Frank N. Jones, Ravi G. Joshi, Theodore Provder
Patents
Nanolatexes comprising functional monomers and methods for making nanolatexes. Compositions comprising between about 3:97 and 90:10 (w/w) nanolatex particles to conventional latex particles. Because of the particle size differences between the conventional and nanolatexes, the nanolatexes may distribute themselves advantageously amongst the conventional latexes during coalescence, resulting in films having unexpected properties. In particular, when the average particle size of the conventional latex is about six times larger than the average particle size of the nanolatex, a composition comprising a ratio of 1 conventional latex particle for every 25 nanolatex particles results in unexpectedly strong (large Young's modulus) and smooth …
American Society Of Parasitologists Newsletter, V. 36, Nos. 3-4, Fall-Winter 2014, Scott Lyell Gardner
American Society Of Parasitologists Newsletter, V. 36, Nos. 3-4, Fall-Winter 2014, Scott Lyell Gardner
American Society of Parasitologists: Newsletter
No abstract provided.
Telescopic Nanotube Device For Hot Nanolithography, Adrian Popescu, Lilia M. Woods
Telescopic Nanotube Device For Hot Nanolithography, Adrian Popescu, Lilia M. Woods
USF Patents
A device for maintaining a constant tip-surface distance for producing nanolithography patterns on a surface using a telescopic nanotube for hot nanolithography. An outer nanotube is attached to an AFM cantilever opposite a support end. An inner nanotube is telescopically disposed within the outer nanotube. The tip of the inner nanotube is heated to a sufficiently high temperature and brought in the vicinity of the surface. Heat is transmitted to the surface for thermal imprinting. Because the inner tube moves telescopically along the outer nanotube axis, a tip-surface distance is maintained constant due to the vdW force interaction, which in …
Minimally Invasive Networked Surgical System And Method, Richard D. Gitlin, Gabriel E. Arrobo, Thomas P. Ketterl
Minimally Invasive Networked Surgical System And Method, Richard D. Gitlin, Gabriel E. Arrobo, Thomas P. Ketterl
USF Patents
A system for performing non-invasive networked medical procedures including a number of in vivo medical devices, a communication path between at least two of the devices, an ex vivo control unit to control the behavior of the devices, and a wireless communication path between the control unit and at least one of the devices. An associated method for performing non-invasive networked medical procedures is also provided. Further included is a simulation method that utilizes accurate electromagnetic field simulations, using a software based test bench, to determine the maximum allowable transmitted power levels from in vivo devices to achieve a required …
System And Method For Dissolving Gases In Fluids And For Delivery Of Dissolved Gases, Gregory S. Osborn, Marty D. Matlock, Shandi S. Teltschik
System And Method For Dissolving Gases In Fluids And For Delivery Of Dissolved Gases, Gregory S. Osborn, Marty D. Matlock, Shandi S. Teltschik
Patents Granted
Apparatus and methods are disclosed for facilitating dissolution of one or more gases into a liquid. Preferred gases for use with the apparatus are oxygen, air, and ozone. An apparatus of the present invention includes a dissolution tank that includes a pressure vessel, at least one liquid spray nozzle, and a fluid outlet. The apparatus also includes a gas source, an element for passing fluid into the pressure vessel, and a discharge device connected to the fluid outlet, which discharge device is provided with at least one orifice. Preferred applications include wastewater treatment, treatment of drinking water, fermentation, and bioremediation.
Classification Of Current Anticancer Immunotherapies., Lorenzo Galluzzi, Erika Vacchelli, José-Manuel Bravo-San Pedro, Aitziber Buqué, Laura Senovilla, Elisa Elena Baracco, Norma Bloy, Francesca Castoldi, Jean-Pierre Abastado, Patrizia Agostinis, Ron N Apte, Fernando Aranda, Maha Ayyoub, Philipp Beckhove, Jean-Yves Blay, Laura Bracci, Anne Caignard, Chiara Castelli, Federica Cavallo, Estaban Celis, Vincenzo Cerundolo, Aled Clayton, Mario P Colombo, Lisa Coussens, Madhav V Dhodapkar, Alexander M Eggermont, Douglas T Fearon, Wolf H Fridman, Jitka Fučíková, Dmitry I Gabrilovich, Jérôme Galon, Abhishek Garg, François Ghiringhelli, Giuseppe Giaccone, Eli Gilboa, Sacha Gnjatic, Axel Hoos, Anne Hosmalin, Dirk Jäger, Pawel Kalinski, Klas Kärre, Oliver Kepp, Rolf Kiessling, John M Kirkwood, Eva Klein, Alexander Knuth, Claire E Lewis, Roland Liblau, Michael T Lotze, Enrico Lugli, Jean-Pierre Mach, Fabrizio Mattei, Domenico Mavilio, Ignacio Melero, Cornelis J Melief, Elizabeth A Mittendorf, Lorenzo Moretta, Adekunke Odunsi, Hideho Okada, Anna Karolina Palucka, Marcus E Peter, Kenneth J Pienta, Angel Porgador, George C Prendergast, Gabriel A Rabinovich, Nicholas P Restifo, Naiyer Rizvi, Catherine Sautès-Fridman, Hans Schreiber, Barbara Seliger, Hiroshi Shiku, Bruno Silva-Santos, Mark J Smyth, Daniel E Speiser, Radek Spisek, Pramod K Srivastava, James E Talmadge, Eric Tartour, Sjoerd H Van Der Burg, Benoît J Van Den Eynde, Richard Vile, Hermann Wagner, Jeffrey S Weber, Theresa L Whiteside, Jedd D Wolchok, Laurence Zitvogel, Weiping Zou, Guido Kroemer
Classification Of Current Anticancer Immunotherapies., Lorenzo Galluzzi, Erika Vacchelli, José-Manuel Bravo-San Pedro, Aitziber Buqué, Laura Senovilla, Elisa Elena Baracco, Norma Bloy, Francesca Castoldi, Jean-Pierre Abastado, Patrizia Agostinis, Ron N Apte, Fernando Aranda, Maha Ayyoub, Philipp Beckhove, Jean-Yves Blay, Laura Bracci, Anne Caignard, Chiara Castelli, Federica Cavallo, Estaban Celis, Vincenzo Cerundolo, Aled Clayton, Mario P Colombo, Lisa Coussens, Madhav V Dhodapkar, Alexander M Eggermont, Douglas T Fearon, Wolf H Fridman, Jitka Fučíková, Dmitry I Gabrilovich, Jérôme Galon, Abhishek Garg, François Ghiringhelli, Giuseppe Giaccone, Eli Gilboa, Sacha Gnjatic, Axel Hoos, Anne Hosmalin, Dirk Jäger, Pawel Kalinski, Klas Kärre, Oliver Kepp, Rolf Kiessling, John M Kirkwood, Eva Klein, Alexander Knuth, Claire E Lewis, Roland Liblau, Michael T Lotze, Enrico Lugli, Jean-Pierre Mach, Fabrizio Mattei, Domenico Mavilio, Ignacio Melero, Cornelis J Melief, Elizabeth A Mittendorf, Lorenzo Moretta, Adekunke Odunsi, Hideho Okada, Anna Karolina Palucka, Marcus E Peter, Kenneth J Pienta, Angel Porgador, George C Prendergast, Gabriel A Rabinovich, Nicholas P Restifo, Naiyer Rizvi, Catherine Sautès-Fridman, Hans Schreiber, Barbara Seliger, Hiroshi Shiku, Bruno Silva-Santos, Mark J Smyth, Daniel E Speiser, Radek Spisek, Pramod K Srivastava, James E Talmadge, Eric Tartour, Sjoerd H Van Der Burg, Benoît J Van Den Eynde, Richard Vile, Hermann Wagner, Jeffrey S Weber, Theresa L Whiteside, Jedd D Wolchok, Laurence Zitvogel, Weiping Zou, Guido Kroemer
Kimmel Cancer Center Faculty Papers
During the past decades, anticancer immunotherapy has evolved from a promising therapeutic option to a robust clinical reality. Many immunotherapeutic regimens are now approved by the US Food and Drug Administration and the European Medicines Agency for use in cancer patients, and many others are being investigated as standalone therapeutic interventions or combined with conventional treatments in clinical studies. Immunotherapies may be subdivided into "passive" and "active" based on their ability to engage the host immune system against cancer. Since the anticancer activity of most passive immunotherapeutics (including tumor-targeting monoclonal antibodies) also relies on the host immune system, this classification …
Inductive Measurement Of Optically Hyperpolarized Phosphorous Donor Nuclei In An Isotopically Enriched Silicon-28 Crystal, P. Gumann, O. Patange, C. Ramanathan, H. Haas
Inductive Measurement Of Optically Hyperpolarized Phosphorous Donor Nuclei In An Isotopically Enriched Silicon-28 Crystal, P. Gumann, O. Patange, C. Ramanathan, H. Haas
Dartmouth Scholarship
We experimentally demonstrate the first inductive readout of optically hyperpolarized phosphorus-31 donor nuclear spins in an isotopically enriched silicon-28 crystal. The concentration of phosphorus donors in the crystal was 1.5×1015 cm−3, 3 orders of magnitude lower than has previously been detected via direct inductive detection. The signal-to-noise ratio measured in a single free induction decay from a 1 cm3 sample (≈1015 spins) was 113. By transferring the sample to an X-band ESR spectrometer, we were able to obtain a lower bound for the nuclear spin polarization at 1.7 K of ∼64%. The 31P-T2 measured with a Hahn echo sequence was …
Modeling, Fabrication, And Characterization Of Memristors, Anas Mazady
Modeling, Fabrication, And Characterization Of Memristors, Anas Mazady
Doctoral Dissertations
The term “memristor” was coined by L. Chua from its two distinct functional characteristics, memory and resistor. From the symmetry argument of the circuit element and circuit variable matrix, memristor is deemed as the fourth fundamental circuit element, after resistor, capacitor, and inductor. Memristor switching and observed I-V characteristics are explained utilizing the underlying physics of the device in terms of the formation and rupture of filaments. Three different conduction mechanisms, namely - filament assisted tunneling current, bulk tunneling current and currents flowing through low and high conductivity filaments give rise to the total current in memristive systems. DC and …
The Paradox Of Immigration Politics: Revisiting The Dynamics Of Philippine Nikkeijin Labor Migration, Ron Bridget Vilog
The Paradox Of Immigration Politics: Revisiting The Dynamics Of Philippine Nikkeijin Labor Migration, Ron Bridget Vilog
Asia-Pacific Social Science Review
Under the 1990 Immigration Control Act, nikkeijin or descendants of Japanese nationals who were born in foreign countries were granted limited rights to reside and work in Japan. Notwithstanding the contradictions of the policy framework, nikkeijin migration remains dynamic and robust. Impelled by socio-economic and cultural factors, Filipino nikkeijin have demonstrated an enduring cycle of migration, indicating socio-economic and cultural embeddedness within the host society. Thus, this paper discussed how Filipino nikkeijin acquired their nikkei recognition, initiated the migration process, and sustained massive flow despite Japan’s problematic immigration policies. Exploring the notion of Tsuda’s (1999) “structural embeddedness,” the paper highlights …
Three Win Poster Awards At National Honors Conference, Staff
Three Win Poster Awards At National Honors Conference, Staff
Browse All News
No abstract provided.
Unidirectional Spectral Singularities, Hamidreza Ramezani, Hao Kun Li, Yuan Wang, Xiang Zhang
Unidirectional Spectral Singularities, Hamidreza Ramezani, Hao Kun Li, Yuan Wang, Xiang Zhang
Physics & Astronomy Faculty Publications
We propose a class of spectral singularities emerging from the coincidence of two independent singularities with highly directional responses. These spectral singularities result from resonance trapping induced by the interplay between parity-time symmetry and Fano resonances. At these singularities, while the system is reciprocal in terms of a finite transmission, a simultaneous infinite reflection from one side and zero reflection from the opposite side can be realized.
The Effect Of Non Freeze-Dried Hydrogel-Cha On Fibroblast Proliferation, Ivan A. Wahyudi, Lea M. Nurwadji
The Effect Of Non Freeze-Dried Hydrogel-Cha On Fibroblast Proliferation, Ivan A. Wahyudi, Lea M. Nurwadji
Journal of Dentistry Indonesia
Bone damage can be caused by variety of surgical procedures. Bone reconstruction has been developed lately is tissue engineering techniques. One of materials that proved to be effective as a scaffold in tissue engineering is a hydrogel. The addition of carbonate apatite (CHA) will produce a hydrogel-CHA material which is believed to improve the mechanical properties and biological similarities with the original bone. Scaffold is considered an important aspect in the field of tissue engineering, because it’s ability to mimic extracellular matrix of the damaged tissue. Fibroblasts are mesenchymal cells that can be readily cultured in the laboratory and play …
Cal Poly Institute For Advanced Technology And Public Policy Secures $1.2 Million To Build Online Transparency Platform For California Legislature, Public Affairs Office
Cal Poly Institute For Advanced Technology And Public Policy Secures $1.2 Million To Build Online Transparency Platform For California Legislature, Public Affairs Office
Press Releases
No abstract provided.