scholarly journals Implications of Multiple Disequilibrium Textures in Quartz-Hosted Embayments

2021 ◽  
Vol 9 ◽  
Author(s):  
Anna C. Ruefer ◽  
Kenneth S. Befus ◽  
James O. Thompson ◽  
Benjamin J. Andrews
Keyword(s):  
The United States ◽  
Bishop Tuff ◽  
Concentration Gradients ◽  
Equilibrium Solubility ◽  
Quartz Crystals ◽  
Diffusion Limited ◽  
Complex Shapes ◽  
Bandelier Tuff ◽  
Filling Characteristics ◽  
Insight Into

The faces of volcanic phenocrysts may be marked by imperfections occurring as holes that penetrate the crystal interior. When filled with glass these features, called embayments or reentrants, have been used to petrologically constrain magmatic ascent rate. Embayment ascent speedometry relies on the record of disequilibrium preserved as diffusion-limited volatile concentration gradients in the embayment glass. Clear, glassy embayments are carefully selected for speedometry studies. The use and subsequent descriptions of pristine embayments overrepresent their actual abundance. Here, we provide a textural analysis of the number, morphology, and filling characteristics of quartz-hosted embayments. We target a collection of large (i.e., >20 km3 erupted volume) silicic eruptions, including the Bishop Tuff, Tuff of Bluff Point, Bandelier Tuff, Mesa Falls Tuff, and Huckleberry Ridge Tuff in the United States, Oruanui Tuff in New Zealand, Younger Toba Tuff in Indonesia, the Kos Plateau Tuff in Greece, and the Giant Pumice from La Primavera caldera in Mexico. For each unit, hundreds of quartz crystals were picked and the total number of embayment-hosting crystals were counted and categorized into classifications based on the vesicularity and morphology. We observed significant variability in embayment abundance, form, and vesicularity across different eruptions. Simple, cylindrical forms are the most common, as are dense glassy embayments. Increasingly complex shapes and a range of bubble textures are also common. Embayments may crosscut or deflect prominent internal cathodoluminescence banding in the host quartz, indicating that embayments form by both dissolution and growth. We propose potential additional timescales recorded by embayment disequilibrium textures, namely, faceting, bubbles, and the lack thereof. Embayment formation likely occurs tens to hundreds of years before eruption because embayment surfaces are rounded instead of faceted. Bubble textures in embayments are far from those predicted by equilibrium solubility. Homogenous nucleation conditions likely allow preservation of pressures much greater than magmastatic inside embayments. Our textural observations lend insight into embayment occurrence and formation and guide further embayment studies.

Analysis of Demographics and Factors Influencing Student Choice of Major at Five Universities

HortScience ◽  
1998 ◽  
Vol 33 (3) ◽  
pp. 510b-510
Author(s):  
Tammy Kohlleppel ◽  
Jennifer C. Bradley ◽  
Jayne Zajicek
Keyword(s):  
Student Satisfaction ◽  
Undergraduate Students ◽  
The United States ◽  
Student Choice ◽  
Student Interest ◽  
Post Secondary ◽  
Choice Of Major ◽  
Factors Influencing ◽  
University History ◽  
Insight Into

In recent years horticulture programs at universities across the United States have experienced a decline in student numbers. Researchers at the Univ. of Florida and Texas A&M Univ. have developed a survey to gain insight into the influences on undergraduate students who major in horticulture. Five universities participated in the survey of undergraduate horticulture programs, these include the Univ. of Florida, Texas A&M Univ., Oklahoma State Univ., Univ. of Tennessee, and Kansas State Univ. Approximately 600 surveys were sent to the schools during the 1997 fall semester. The questionnaires were completed by horticulture majors and nonmajors taking classes in the horticulture departments. The survey consisted of two main sections. The first section examined student demographic information, high school history, university history and horticulture background and was completed by all students. Only horticulture majors completed the second section, which examined factors influencing choice of horticulture as a major. Results examine fundamental predictors in promoting student interest in horticulture, demographic variables that may influence student choice of major, and student satisfaction and attitude toward current collegiate horticulture programs. Findings from this study will provide insight into the status of post-secondary horticulture education and assist in identifying methods to increase student enrollment in horticulture programs across the country.

scholarly journals Rapid Deployment of an Algorithm to Triage Dental Emergencies During COVID-19 Pandemic

2021 ◽  
Author(s):  
Sharon C Perelman ◽  
Steven Erde ◽  
Lynda Torre ◽  
Tunaidi Ansari
Keyword(s):  
Rapid Development ◽  
The United States ◽  
Healthcare Systems ◽  
Patient Needs ◽  
Columbia University ◽  
Dental Infection ◽  
Screening Algorithm ◽  
Rapid Deployment ◽  
Medical Infrastructure ◽  
Insight Into

Abstract COVID-19 quickly immobilized healthcare systems in the United States during the early stages of the outbreak. While much of the ensuing response focused on supporting the medical infrastructure, Columbia University College of Dental Medicine pursued a solution to triage and safely treat patients with dental emergencies amidst the pandemic. Considering rapidly changing guidelines from governing bodies, dental infection control protocols and our clinical faculty's expertise, we modeled, built, and implemented a screening algorithm, which provides decision support as well as insight into COVID-19 status and clinical comorbidities, within a newly integrated Electronic Health Record (EHR). Once operationalized, we analyzed the data and outcomes of its utilization and found that it had effectively guided providers in triaging patient needs in a standardized methodology. This article describes the algorithm's rapid development to assist faculty providers in identifying patients with the most urgent needs, thus prioritizing treatment of dental emergencies during the pandemic.

Excavating the Layers of Trauma in Homelands and Hostlands: Supporting Political Refugees in U.S. Schools

2021 ◽  
pp. 155545892199751
Author(s):  
Mehtap Akay ◽  
Reva Jaffe-Walter
Keyword(s):  
United States ◽  
Teacher Education ◽  
Education System ◽  
Home Country ◽  
The United States ◽  
Dominant Culture ◽  
Refugee Students ◽  
Political Refugees ◽  
Language And Education ◽  
Insight Into

This article details how a newly arrived Turkish refugee student navigates schooling in the United States. It highlights the trauma a purged Turkish families experience in their home country and their challenges as newcomers unfamiliar with their new country’s dominant culture, language, and education system. The case narrative provides insight into how children of Turkish political refugees are often overlooked in the context of U.S. schools, where teachers lack adequate training and supports. By illuminating one refugee family’s experiences in U.S. schools, the case calls for leaders to develop holistic supports and teacher education focused on the needs of refugee students.

Newsmaking criminology in Australia and New Zealand: Results from a mixed methods study of criminologists’ media engagement

2019 ◽  
Vol 53 (1) ◽  
pp. 84-101 ◽  
Author(s):  
Mary Iliadis ◽  
Imogen Richards ◽  
Mark A Wood
Keyword(s):  
New Zealand ◽  
News Media ◽  
The United States ◽  
Mixed Methods Study ◽  
The Past ◽  
Professional Duty ◽  
The Subject ◽  
Survey Responses ◽  
Insight Into ◽  
Newsmaking Criminology

‘Newsmaking criminology’, as described by Barak, is the process by which criminologists contribute to the generation of ‘newsworthy’ media content about crime and justice, often through their engagement with broadcast and other news media. While newsmaking criminological practices have been the subject of detailed practitioner testimonials and theoretical treatise, there has been scarce empirical research on newsmaking criminology, particularly in relation to countries outside of the United States and United Kingdom. To illuminate the state of play of newsmaking criminology in Australia and New Zealand, in this paper we analyse findings from 116 survey responses and nine interviews with criminologists working in universities in these two countries, which provide insight into the extent and nature of their news media engagement, and their related perceptions. Our findings indicate that most criminologists working in Australia or New Zealand have made at least one news media appearance in the past two years, and the majority of respondents view news media engagement as a professional ‘duty’. Participants also identified key political, ethical, and logistical issues relevant to their news media engagement, with several expressing a view that radio and television interviewers can influence criminologists to say things that they deem ‘newsworthy’.

scholarly journals »Heimat im Koffer.« – »Oder über das Emigrantendasein. (Falls nicht zu traurig).«

Aschkenas ◽  
2014 ◽  
Vol 24 (2) ◽  
Author(s):  
Joachim Schlör
Keyword(s):  
United States ◽  
New York ◽  
Popular Music ◽  
Everyday Life ◽  
The United States ◽  
National Socialist ◽  
Weimar Germany ◽  
Musical Traditions ◽  
German Jewish ◽  
Insight Into

AbstractThe idea to create and stage a play called »Heimat im Koffer« – »A home in the suitcase« – emerged, I presume, in Vienna shortly before Austria became part of National Socialist Germany in 1938: the plot involved the magical translocation of a typical Viennese coffeehouse, with all its inhabitants and with the songs they sang, to New York; their confrontation with American everyday life and musical traditions would create the humorous situations the authors hoped for. Since 1933, Robert Gilbert (Robert David Winterfeld, 1899–1978), the son of a famous Jewish musician and himself a most successful writer of popular music for film and operetta in Weimar Germany, found himself in exile in Vienna where he cooperated with the journalist Rudolf Weys (1898–1978) and the piano artist Hermann Leopoldi (1888–1959). Whereas Gilbert and Leopoldi emigrated to the United States and became a part of the German-Jewish and Austrian-Jewish emigré community of New York – summarizing their experience in a song about the difficulty to acquire the new language, »Da wär’s halt gut, wenn man Englisch könnt« (1943) – Weys survived the war years in Vienna. After 1945, Gilbert and Weys renewed their contact and discussed – in letters kept today within the collection of the Viennese Rathausbibliothek – the possibility to finally put »Heimat im Koffer« on stage. The experiences of exile, it turned out, proved to be too strong, and maybe too serious, for the harmless play to be realized, but the letters do give a fascinating insight into everyday-life during emigration, including the need to learn English properly, and into the impossibility to reconnect to the former life and art.

scholarly journals Address of the President Sir Henry Dale, C.B.E., at the Anniversary Meeting, 1 December 1941

1942 ◽  
Vol 179 (978) ◽  
pp. 233-260 ◽  
Keyword(s):  
Technical College ◽  
High Speed ◽  
Large Scale ◽  
Electrical Engineering ◽  
The United States ◽  
The Past ◽  
Pure Mathematics ◽  
Symbolic Structure ◽  
The Church ◽  
Insight Into

This is the first occasion on which I have had the great honour of addressing the Royal Society on this anniversary of its foundation. According to custom, I begin with brief mention of those whom death has taken from our Fellowship during the past year, and whose memories we honour. Alfred Young (1873-1940), distinguished for his contributions to pure mathematics, was half brother to another of our Fellows, Sydney Young, a chemist of eminence. Alfred Young had an insight into the symbolic structure and manipulation of algebra, which gave him a special place among his mathematical contemporaries. After a successful career at Cambridge he entered the Church, and passed his later years in the country rectory of Birdbrook, Essex. His devotion to mathematics continued, however, throughout his life, and he published a steady stream of work in the branch of algebra which he had invented, and named ‘quantitative substitutional analysis’. He lived to see his methods adopted by Weyl in his quantum mechanics and spectroscopy. He was elected to our Fellowship in 1934. With the death of Miles Walker (1868-1941) the Society loses a pioneer in large-scale electrical engineering. Walker was a man of wide interests. He was trained first for the law, and even followed its practice for a period. Later he studied electrical engineering under Sylvanus Thompson at the Finsbury Technical College and became his assistant for several years. Thereafter, encouraged by Thompson, he entered St John’s College, Cambridge, with a scholarship, and graduated with 1st Class Honours in both the Natural Sciences and the Engineering Tripos. Having entered the service of the British Westinghouse Company, he was sent by them to the United States of America to study electrical engineering with the parent company in Pittsburgh. On his return to England he became their leading designer of high-speed electrical generators

Prosperity Gospel Latinos and Their American Dream

2020 ◽  
Author(s):  
Tony Tian-Ren Lin
Keyword(s):  
Latin American ◽  
American Dream ◽  
The United States ◽  
Political Resistance ◽  
Religious Experiences ◽  
Prosperity Gospel ◽  
White American ◽  
Material Goods ◽  
Latin American Immigrants ◽  
Insight Into

In this immersive ethnography, Tony Tian-Ren Lin explores the reasons that Latin American immigrants across the United States are increasingly drawn to Prosperity Gospel Pentecostalism, a strand of Protestantism gaining popularity around the world. Lin contends that Latinos embrace Prosperity Gospel, which teaches that believers may achieve both divine salvation and worldly success, because it helps them account for the contradictions of their lives as immigrants. Weaving together his informants’ firsthand accounts of their religious experiences and everyday lives, Lin offers poignant insight into how they see their faith transforming them both as individuals and as communities. The theology fuses salvation with material goods so that as these immigrants pursue spiritual rewards they are also, perhaps paradoxically, striving for the American dream. But after all, Lin observes, prosperity is the gospel of the American dream. In this way, while becoming better Prosperity Gospel Pentecostals they are also adopting traditional white American norms. Yet this is not a story of smooth assimilation as most of these immigrants must deal with the immensity of the broader cultural and political resistance to their actually becoming Americans. Rather, Prosperity Gospel Pentecostalism gives Latinos the logic and understanding of themselves as those who belong in this country yet remain perpetual outsiders.

State- and Individual-Level Predictors of Mexican Death Penalty Support

2017 ◽  
Vol 64 (12) ◽  
pp. 1590-1611 ◽  
Author(s):  
Alexander H. Updegrove ◽  
Erin A. Orrick
Keyword(s):  
Death Penalty ◽  
Capital Punishment ◽  
Mexican Immigrants ◽  
State Level ◽  
The United States ◽  
Individual Level ◽  
Specific Factors ◽  
Nationally Representative ◽  
Future Practice ◽  
Insight Into

Mexico exerts a unique influence on Texas through immigration. As immigrants bring perspectives from their country of origin when they immigrate, studying attitudes toward capital punishment in Mexico may provide insight into ways Mexican immigrants could affect its future practice in Texas. Multilevel modeling is used to examine individual- and state-level predictors of death penalty support among a nationally representative sample of Mexicans. Results indicate age and Catholic affiliation are associated with death penalty support, although not in the expected directions, whereas states bordering the United States are less likely to support capital punishment, despite experiencing less overall peace and a higher average homicide rate. Findings suggest the need for researchers to use culture-specific factors to predict death penalty support.

scholarly journals “It’s Not Just a Simple Meal. It’s So Much More”: Interactions Between Meals on Wheels Clients and Drivers

2018 ◽  
Vol 39 (2) ◽  
pp. 151-158 ◽  
Author(s):  
Kali S. Thomas ◽  
Emily A. Gadbois ◽  
Renee R. Shield ◽  
Ucheoma Akobundu ◽  
Andrea M. Morris ◽  
...  
Keyword(s):  
The United States ◽  
Case Managers ◽  
Qualitative Research Study ◽  
Personal Benefit ◽  
Meals On Wheels ◽  
Clear Insight ◽  
Additional Support ◽  
Insight Into ◽  
Made In ◽  
Meal Delivery

Background and Objectives: Meals on Wheels (MOW) programs provide home-delivered meals to over 1.5 million older adults; yet, very little is known about the drivers who make meal deliveries possible. Specifically, we do not have clear insight into their interaction with clients or the benefits that they may receive through their service. The objective of this article is to describe the characteristics of MOW drivers, the interactions among drivers and clients, and the benefits of the program to both. Research Design and Method: This qualitative research study reports on interviews with 84 MOW staff (leadership, case managers/client assessors, volunteer coordinators) and drivers at six geographically and operationally distinct programs across the United States. Results: Qualitative analysis of the interviews with MOW staff and drivers revealed the following key themes: (a) clients have multiple vulnerabilities; (b) clients appear to derive social, as well as nutritional benefit from receiving meals; (c) drivers report they provide additional support to their clients beyond delivering the meal; (d) social bonds between drivers and clients were reported to strengthen over time; (e) drivers claim that they, too, derive validation and personal benefit through their meal delivery. Discussion and Implications: This research highlights the significant contributions that meal delivery drivers made in the lives of MOW clients beyond the actual meal itself. This research also spotlights the perceived benefits experienced by the drivers and points to the importance of conducting further research to determine the effects of meal delivery on client and drivers’ outcomes, more broadly.

Examining How Stakeholders at the Local, State, and National Levels Made Sense of the Changed Kindergarten

2018 ◽  
Vol 56 (3) ◽  
pp. 822-867 ◽  
Author(s):  
Christopher P. Brown ◽  
Joanna Englehardt ◽  
David P. Barry ◽  
Da Hei Ku
Keyword(s):  
Public Education ◽  
Standardized Testing ◽  
First Grade ◽  
The United States ◽  
Ethnographic Study ◽  
Local State ◽  
National Education ◽  
Insight Into ◽  
Academic Content ◽  
Education Stakeholders

Kindergarten in the United States has fundamentally changed. It is the new first grade where children are taught increased academic content and experience more standardized testing. There is much debate among education stakeholders about these changes, but such discussions are often siloed— making it difficult to know whether these changes reflect these stakeholders’ understandings of kindergarten specifically or public education in general. This explorative video-cued multivocal ethnographic study addressed this issue by examining how local, state, and national education stakeholders made sense of the changed kindergarten. Such findings provide insight into what it is they viewed driving these academic and instructional changes, what opportunities for further reform exist, and whether these stakeholders will work to support and/or alter such changes.

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