Progress on the hybrid gun project at UCLA

UCLA/INFN-LNF/Univ. Rome has been developing the hybrid gun which has an RF gun and a short linac for velocity bunching in one structure. After the cavity was manufactured at INFN-LNF in 2012, tests of the gun was carried out at UCLA. The field in the standing wave part was 20 % smaller than the simulation but the phase advance was fine. The cavity was commissioned successfully up to 13 MW. The beam test was performed at 11.5 MW and demonstrated the bunch compression

Gas-liquid segmented flow microwave-assisted synthesis of MOF-74(Ni) under moderate pressures

The metal organic framework, MOF-74(Ni), was synthesized in a continuous flow microwave-assisted reactor obtaining a high space-time yield (~90 g h⁻¹ L⁻¹) and 96.5% conversion of reagents. Separation of the nucleation and growth steps was performed by using uniform and rapid microwave heating to induce nucleation, which allowed a substantial increase in conversion for shorter reaction times under mild pressure. High yields were achieved in minutes, as opposed to days for typical batch syntheses, with excellent control over the material's properties due to more uniform nucleation, and the separation of the nucleation and growth steps. Optimization of the microwave reactor parameters led to improvements in MOF-74(Ni) crystallinity, reagent conversion, and production rates. Differences in MOF-74(Ni) crystallinity were observed as smaller grains were formed when higher microwave zone temperatures were used. Crystallinity differences led to different final adsorption properties and surface areas. Herein we show that a continuous high space-time yield synthesis of MOF-74(Ni) allows control over nucleation using microwave heating

Synthesis of colloidal PbSe nanoparticles using a microwave-assisted segmented flow reactor

Colloidal lead selenide nanoparticles (PbSe NPs) were synthesized using a microwave-assisted continuous flow reactor. Rapid heating of precursors was performed in the microwave reaction zone to initiate nucleation and was followed by an oil bath growth zone. In this study we have evaluated the effect of the nucleation temperature on the PbSe NP size distributions, crystallographic structure, particle shape, and particle composition. The PbSe NP size could be varied from 11.2 to 13.9 nm by adjusting the microwave nucleation temperature between 124 and 159 °C. It was found that nucleation of Pb rich species occurred in the microwave reaction zone, while PbSe NPs form in the growth zone.This is an author's peer-reviewed final manuscript, as accepted by the publisher. The published article is copyrighted by Elsevier and can be found at: http://www.sciencedirect.com/science/journal/0167577XKeywords: PbSe, Microwave, Flow synthesis, Nanoparticles, Colloidal processin

Productivity, influence, and evolution: The complex language shift of Modern Ladino

Thesis (Ph.D.)--University of Washington, 2019This dissertation uses data from interviews with Seattle Ladino speakers, an online forum in Ladino, and documents from the University of Washington Sephardic Studies Collection to investigate the language shift that Modern Ladino has undergone. Ladino is the language that developed when the Jews who were exiled from Spain in 1492 fled to the Ottoman Empire and mixed Ottoman Turkish and other languages into their Spanish. Chapter 1 of this dissertation provides a short language shift literature review, a brief history of the Ladino speech community, and information about each of the aforementioned Ladino data sources. Chapter 2 explores the variation of the vowel raising pattern found in the Rhodesli dialect of Seattle Ladino and shows that this variation existed before Rhodesli speakers came into contact with non-raising speakers in Seattle. Chapter 3 explores the combinatory potential of the Turkish-origin suffix -dji and finds that, while the majority of the roots being combined with this suffix today are of Turkish origin, there appears to still be some productivity with respect to this suffix. Chapter 4 challenges the traditional three-generation language shift model, showing that this model is insufficient for Modern Ladino, as it fails to account for the multilingualism and constant language contact inherent to the Ladino speech community in the 20th century, but also throughout its history. Ultimately, this dissertation provides a snapshot of Modern Ladino in the 20th century, and highlights what are likely some of the last recordings of Seattle Ladino speech that will be made

The Last Generation of Native Ladino Speakers? Judeo-Spanish and the Sephardic Community in Seattle

Thesis (Master's)--University of Washington, 2014The Sephardic community in Seattle, Washington is unique not only in its relative size, but also in its cohesiveness. The community boasts two Sephardic synagogues, various religious and cultural organizations that meet regularly, and a group that convenes weekly to read texts in Ladino and discuss their experiences growing up with the language. In fact, Seattle is one of the few cities left in the world with a sizeable population of Ladino speakers. Ladino, or Judeo-Spanish, the historical language of the Sephardic Jews, was born when the Spanish-speaking Jews were expelled from Spain in 1492, and they migrated to various parts of the world, particularly the Ottoman Empire, integrating elements from the local languages into their own Iberian language. A large percentage of the oldest generation of Seattle Sephardim grew up if not speaking, at least hearing, Ladino at home, but, as children of immigrants, they did not teach the language to their own children. This generation is thus the last generation of native Ladino speakers that Seattle will ever see. Using interviews and surveys with members of the previously mentioned Ladino conversation group, nicknamed "the Ladineros," this paper investigates the language shift from Ladino to English in Seattle. More specifically, the study explores this language shift through the lens of structural changes in the language and by means of the speakers' language attitudes. Bookmarking the presentation of the sociolinguistic study is information about the past and future of the language. A brief outline of the development of the language is provided, as are some of the salient characteristics of the language, especially in comparison with Modern Castilian Spanish. Two major sociolinguistic studies regarding Ladino in other areas of the world are reviewed, as is some of the key linguistic theory regarding language shift, language loss, and language death. Concluding the paper are some remarks regarding the future of Seattle Ladino, including the possibility of preservation and/or revitalization

The Jiann-Ping Hsu College of Public Health

This presentation was given during the Georgia Public Health District 9 – 2 Environmental Training

Evidence-Based Decision-Making: Assessment of Student Learning Outcomes in Public Health Education Programs

The assessment of student learning has been defined as the systematic collection of information about learning, using the time, knowledge, expertise, and resources available, in order to inform decisions about how to improve learning. (Walvood, 2004) In its revision of accreditation criteria in 2005, the Council on Education for Public Health (CEPH) transitioned from student learning objectives to competencies, which reflected a shift in focus to competency-based education, an Evidence-Based Decision-Making (EBDM) model focused on what students need to know and are able to perform in a variety of complex, dynamic situations. In programs, schools, and colleges of public health, these competencies take the form of a set of focused outcomes linked to workforce needs in the five core areas of the curriculum and, based on a mastery of knowledge, skills, and abilities, are critical for a student\u27s future success in the field. Given the revised set of criteria, a newly-established College of Public Health in the southeastern United States developed an integrated, computer-aided EBDM paradigm, consistent with its mission, goals, and objectives. This rubric was designed to close the loop between theory and practice, while establishing evidence-based decision-making as a key component of the College\u27s academic culture from its inception. This session will describe the model, and present data collected from the first semester during which the process was operative, including: characteristics of MPH graduates; program goals and outcomes; core competencies; course objectives and student learning outcomes; data that assess student outcomes; preceptor evaluations; and suggestions for program improvement

The Last Generation of Native Ladino Speakers? Judeo-Spanish and the Sephardic Community in Seattle /

The Sephardic community in Seattle, Washington is unique not only in its relative size, but also in its cohesiveness. The community boasts two Sephardic synagogues, various religious and cultural organizations that meet regularly, and a group that convenes weekly to read texts in Ladino and discuss their experiences growing up with the language. In fact, Seattle is one of the few cities left in the world with a sizeable population of Ladino speakers. Ladino, or Judeo-Spanish, the historical language of the Sephardic Jews, was born when the Spanish-speaking Jews were expelled from Spain in 1492, and they migrated to various parts of the world, particularly the Ottoman Empire, integrating elements from the local languages into their own Iberian language. A large percentage of the oldest generation of Seattle Sephardim grew up if not speaking, at least hearing, Ladino at home, but, as children of immigrants, they did not teach the language to their own children. This generation is thus the last generation of native Ladino speakers that Seattle will ever see.Using interviews and surveys with members of the previously mentioned Ladino conversation group, nicknamed "the Ladineros," this paper investigates the language shift from Ladino to English in Seattle. More specifically, the study explores this language shift through the lens of structural changes in the language and by means of the speakers' language attitudes. Bookmarking the presentation of the sociolinguistic study is information about the past and future of the language. A brief outline of the development of the language is provided, as are some of the salient characteristics of the language, especially in comparison with Modern Castilian Spanish. Two major sociolinguistic studies regarding Ladino in other areas of the world are reviewed, as is some of the key linguistic theory regarding language shift, language loss, and language death. Concluding the paper are some remarks regarding the future of Seattle Ladino, including the possibility of preservation and/or revitalization.Master's -- University of Washington, 2014.School code: 025