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The People Behind the PhDs 08: Stephen Bieda III – The clouds are forming. Lighting strikes 2-3

The People Behind the PhDs 08: Stephen Bieda III – The clouds are forming. Lighting strikes 2-3

Dr. Stephen Bieda III had an inkling he wanted to be a meteorologist growing up, then one day while hanging out with his dog “Zig Zag,” lighting struck his boyhood home. The “snapping” sound stuck which led him to studying weather interpretation and weather communication research, the basis for weather forecasting for the National Weather Service in Amarillo, Texas.

 

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Stephen Bieda III Bio

Dr. Stephen Bieda is the Science & Operations Officer (SOO) at National Weather Service Amarillo, TX. Dr. Bieda received his B.S. (2003), M.S. (2007) and Ph.D. (2012) from the University of Arizona in meteorology and climatology. In the capacity of NWS Amarillo SOO, he is the chief scientific advisor to the Meteorologist-in-Charge. In addition, Dr. Bieda oversees the science, research and operational programs of the office for purposes of protecting life and property from weather hazards in the Texas and Oklahoma Panhandles. Dr. Bieda has been an operational government meteorologist or scientist for 9 years, and serves on the American Meteorological Society (AMS) Board of Operational Government Meteorologists as well as the AMS Committee on Weather Analysis & Forecasting.

Abstract: The Relationship of Transient Upper-Level Troughs to Variability of the North American Monsoon System

https://journals.ametsoc.org/doi/abs/10.1175/2009JCLI2487.1

, and 

Relationships between transient upper-tropospheric troughs and warm season convective activity over the southwest United States and northern Mexico are explored. Analysis of geopotential height and vorticity fields from the North American Regional Reanalysis and cloud-to-ground lightning data indicates that the passage of mobile inverted troughs (IVs) significantly enhances convection when it coincides with the peak diurnal cycle (1800–0900 UTC) over the North American monsoon (NAM) region. The preferred tracks of IVs during early summer are related to the dominant modes of Pacific sea surface temperature (SST) variability. When La Niña–like (El Niño–like) conditions prevail in the tropical Pacific and the eastern North Pacific has a horseshoe-shaped negative (positive) SST anomaly, IVs preferentially track farther north (south) and are slightly (typically one IV) more (less) numerous. These results point to the important role that synoptic-scale disturbances play in modulating the diurnal cycle of precipitation over the NAM region and the significant impact that the statistically supported low-frequency Pacific SST anomalies exert on the occurrence and track of these synoptic transients.

Music by Kate SC

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The People Behind the PhDs 08: Stephen Bieda III – The clouds are forming. Lighting strikes 1-3

The People Behind the PhDs 08: Stephen Bieda III – The clouds are forming. Lighting strikes 1-3

Dr. Stephen Bieda III had an inkling he wanted to be a meteorologist growing up, then one day while hanging out with his dog “Zig Zag,” lighting struck his boyhood home. The “snapping” sound stuck which led him to studying weather interpretation and weather communication research, the basis for weather forecasting for the National Weather Service in Amarillo, Texas.

 

Listen to the episode in 3 parts

Part 1 m4a mp3Part 2 m4a mp3Part 3 m4a mp3

People behind the PhDs 08: Stephen Bieda III – Preview

Stephen Bieda III Bio

Dr. Stephen Bieda is the Science & Operations Officer (SOO) at National Weather Service Amarillo, TX. Dr. Bieda received his B.S. (2003), M.S. (2007) and Ph.D. (2012) from the University of Arizona in meteorology and climatology. In the capacity of NWS Amarillo SOO, he is the chief scientific advisor to the Meteorologist-in-Charge. In addition, Dr. Bieda oversees the science, research and operational programs of the office for purposes of protecting life and property from weather hazards in the Texas and Oklahoma Panhandles. Dr. Bieda has been an operational government meteorologist or scientist for 9 years, and serves on the American Meteorological Society (AMS) Board of Operational Government Meteorologists as well as the AMS Committee on Weather Analysis & Forecasting.

Abstract: The Relationship of Transient Upper-Level Troughs to Variability of the North American Monsoon System

https://journals.ametsoc.org/doi/abs/10.1175/2009JCLI2487.1

, and 

Relationships between transient upper-tropospheric troughs and warm season convective activity over the southwest United States and northern Mexico are explored. Analysis of geopotential height and vorticity fields from the North American Regional Reanalysis and cloud-to-ground lightning data indicates that the passage of mobile inverted troughs (IVs) significantly enhances convection when it coincides with the peak diurnal cycle (1800–0900 UTC) over the North American monsoon (NAM) region. The preferred tracks of IVs during early summer are related to the dominant modes of Pacific sea surface temperature (SST) variability. When La Niña–like (El Niño–like) conditions prevail in the tropical Pacific and the eastern North Pacific has a horseshoe-shaped negative (positive) SST anomaly, IVs preferentially track farther north (south) and are slightly (typically one IV) more (less) numerous. These results point to the important role that synoptic-scale disturbances play in modulating the diurnal cycle of precipitation over the NAM region and the significant impact that the statistically supported low-frequency Pacific SST anomalies exert on the occurrence and track of these synoptic transients.

Music by Kate SC

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The People Behind the PhDs 07: Peta Leitermann-Long – Uh oh, I’m in trouble. What’s my agency? 3-3

The People Behind the PhDs 07: Peta Long – Uh oh, I’m in trouble. What’s my agency? 3-3

Peta Leitermann-LongABD, researches women in politicstwitter activism, political communication, and diversity and inclusion in public relations at the S.I. Newhouse School of Communication at Syracuse University.

 

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Peta Leitermann-Long Bio

Peta Leitermann-Long, is a doctoral candidate at the S.I. Newhouse School of Public Communications, where she specializes in political communication, public relations, and diversity and inclusion. She is the Visiting Assistant Professor in Public Relations at the University of Pittsburgh at Bradford.

Her doctoral thesis, which she aims to complete before August 2018, examines the effects of the 2016 US Presidential debates. This follows her work on political leadership, which started with her Master thesis in Pan African Studies that looked at the political communication philosophy as communicated in the speeches of the late Michael Manley, former Prime Minister of Jamaica. She received her Bachelor of Arts degree, second class honor and dual major from the University of the West Indies, Mona Campus, in July 2008 where she studied Philosophy and Media and Communication.

Peta Long
Peta Long
Women in Politics Researcher

 

Leitermann-Long is currently working on a book with Drs. Rochelle Ford and Hua Jiang on diversity and inclusion practices, which builds on their award-winning paper and industry bench mark study, “Diversity and Inclusion (D&I) in Recruitment and Retention of Public Relations Talent from Under-Represented Groups: A Study with the Arthur W. Page Society Members 2016.” She is a part of Women Get It Done movement in D.C., and an active member of the International Association of Business Communications – Caribbean.

Student, teacher, researcher, motivator, problem-solver, creator, communicator – endearing words that describe Peta Leitermann-Long.

https://www.linkedin.com/in/petalong

http://www.leitermannlong.com

Peta Long
Peta Long
Women in Politics Researcher

Music by Kate SC

 

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The People Behind the PhDs 07: Peta Leitermann-Long – Uh oh, I’m in trouble. What’s my agency? 2-3

The People Behind the PhDs 07: Peta Long – Uh oh, I’m in trouble. What’s my agency? 2-3

Peta Leitermann-LongABD, researches women in politicstwitter activism, political communication, and diversity and inclusion in public relations at the S.I. Newhouse School of Communication at Syracuse University.

 

Listen to the episode in 3 parts

Part 1 m4a mp3Part 2 m4a mp3Part 3 m4a mp3

People behind the PhDs 07: Peta Leitermann-Long – Preview

Peta Leitermann-Long Bio

Peta Leitermann-Long, is a doctoral candidate at the S.I. Newhouse School of Public Communications, where she specializes in political communication, public relations, and diversity and inclusion. She is the Visiting Assistant Professor in Public Relations at the University of Pittsburgh at Bradford.

Her doctoral thesis, which she aims to complete before August 2018, examines the effects of the 2016 US Presidential debates. This follows her work on political leadership, which started with her Master thesis in Pan African Studies that looked at the political communication philosophy as communicated in the speeches of the late Michael Manley, former Prime Minister of Jamaica. She received her Bachelor of Arts degree, second class honor and dual major from the University of the West Indies, Mona Campus, in July 2008 where she studied Philosophy and Media and Communication.

Peta Long
Peta Long
Women in Politics Researcher

 

Leitermann-Long is currently working on a book with Drs. Rochelle Ford and Hua Jiang on diversity and inclusion practices, which builds on their award-winning paper and industry bench mark study, “Diversity and Inclusion (D&I) in Recruitment and Retention of Public Relations Talent from Under-Represented Groups: A Study with the Arthur W. Page Society Members 2016.” She is a part of Women Get It Done movement in D.C., and an active member of the International Association of Business Communications – Caribbean.

Student, teacher, researcher, motivator, problem-solver, creator, communicator – endearing words that describe Peta Leitermann-Long.

https://www.linkedin.com/in/petalong

http://www.leitermannlong.com

Peta Long
Peta Long
Women in Politics Researcher

Music by Kate SC

 

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The People Behind the PhDs 07: Peta Leitermann-Long – Uh oh, I’m in trouble. What’s my agency? 1-3

The People Behind the PhDs 07: Peta Long – Uh oh, I’m in trouble. What’s my agency? 1-3

Peta Leitermann-LongABD, researches women in politicstwitter activism, political communication, and diversity and inclusion in public relations at the S.I. Newhouse School of Communication at Syracuse University.

 

Listen to the episode in 3 parts

Part 1 m4a mp3Part 2 m4a mp3Part 3 m4a mp3

People behind the PhDs 07: Peta Leitermann-Long – Preview

Peta Leitermann-Long Bio

Peta Leitermann-Long, is a doctoral candidate at the S.I. Newhouse School of Public Communications, where she specializes in political communication, public relations, and diversity and inclusion. She is the Visiting Assistant Professor in Public Relations at the University of Pittsburgh at Bradford.

Her doctoral thesis, which she aims to complete before August 2018, examines the effects of the 2016 US Presidential debates. This follows her work on political leadership, which started with her Master thesis in Pan African Studies that looked at the political communication philosophy as communicated in the speeches of the late Michael Manley, former Prime Minister of Jamaica. She received her Bachelor of Arts degree, second class honor and dual major from the University of the West Indies, Mona Campus, in July 2008 where she studied Philosophy and Media and Communication.

Peta Long
Peta Long
Women in Politics Researcher

 

Leitermann-Long is currently working on a book with Drs. Rochelle Ford and Hua Jiang on diversity and inclusion practices, which builds on their award-winning paper and industry bench mark study, “Diversity and Inclusion (D&I) in Recruitment and Retention of Public Relations Talent from Under-Represented Groups: A Study with the Arthur W. Page Society Members 2016.” She is a part of Women Get It Done movement in D.C., and an active member of the International Association of Business Communications – Caribbean.

Student, teacher, researcher, motivator, problem-solver, creator, communicator – endearing words that describe Peta Leitermann-Long.

https://www.linkedin.com/in/petalong

http://www.leitermannlong.com

Peta Long
Peta Long
Women in Politics Researcher

Music by Kate SC

 

Continue reading The People Behind the PhDs 07: Peta Leitermann-Long – Uh oh, I’m in trouble. What’s my agency? 1-3

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The People Behind the PhDs 06: Steve Przymus -Should I translanguage, I’m not sure about education? 3-3

The People Behind the PhDs 06: Steve Przymus -Should I translanguage, I’m not sure about education? 3-3

Dr. Steve Prymus studies translanguaing, bilingual education, and the assessment of teaching culturally and linguistically diverse exceptional students at Texas Christian University.

In this episode, we talk about how a kid wondering about the world during midnight talks while wandering around a small North Dakota town went on to study translanguaging with stops as a junior high teacher, Peace Corps volunteer, and Fulbright scholar.

Listen to the episode in 3 parts

Part 1 m4a mp3Part 2 m4a mp3Part 3 m4a mp3

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Dr. Steve Przymus Bio

Steve Daniel Przymus, Ph.D. is an Assistant Professor of Bilingual Education/ESL at Texas Christian University. Steve’s experiences as a U.S. Peace Corps Volunteer (Dominican Republic, 2003-2005), Fulbright Distinguished Awards in Teaching Grantee (Mexico, 2010), and U.S. public school teacher have driven his passion for developing and promoting multimodal/multilingual pedagogies that recognize individuals’ full semiotic repertoires and educational life histories. Steve’s research focusses on the language and identity development of emergent bilinguals through innovative bilingual instruction in the classroom, through socialization in interest-based communities of practice beyond the classroom, and through bilingual semi-anonymous communicative interactions online.The Subliminal Influence of Street Signs in Schoolscapes

Professor Steve Przymus sitting
Professor Steve Przymus sitting

 

  • In the south part of Tucson a majority of the population identifies as Hispanic or Mexican.
  • In the north part of Tucson a majority of the population does not identity itself as Hispanic or Mexican.
  • Yet, in the south part of Tucson a majority of the street signs are in English, and in the north part of Tucson the majority of streets signs are in Spanish.
  • In the south, students are discouraged from speaking Spanish. In the north, students are encouraged to learn Spanish. What gives?
Dr. Z Productions
People behind the PhDs

 

More info at: https://coe.tcu.edu/faculty-staff/steve-przymus/?fbclid=IwAR2I-O0dm2Jxw7i9lvNDCS79vcfivqhjbrOR265Z5qRMcASLkkiE_154s4o

Music by Kate SC

Abstract

Mensajes de los abuelitos: Multimodal Zapotec literacy development via the assertion of local
ontologies and community-based xkialnana (knowledge) in Oaxaca, México

Steve Daniel Przymus, Texas Christian University
https://orcid.org/0000-0002-1882-453X

Felipe Ruiz Jiménez, Escuela Primaria Intercultural Bilingüe: Ramón López Velarde
Virgilia Pérez García, Escuela Primaria Intercultural Bilingüe: Luz y Progreso

Abstract

A challenge facing Zapotec teachers in multicultural bilingual schools in Oaxaca, México is a
persistent colonial and Eurocentric system of national education curriculum that places greater
value on Western, monolingual, epistemological knowing-about knowledge over profound,
community-based, traditional, ontological, Indigenous knowing; a knowledge that is vital to the
maintenance of the Zapotec language and way of life. A “decolonial” (ontological) way of
thinking that values and legitimatizes Indigenous categories of thought can lead to decolonial
education models, such as community-based teaching approaches to literacy development
(Francisco Antonio, 2015, p. 1). The literacy teaching methods, shared within, derive from and
honor community-based xkialnana, local ontologies that work to develop Zapotec
literacy/identity development and challenge normalized/official/colonial knowledge acceptance
at schools. Questions of language planning and policy remain, however, as Zapotec teachers
struggle to find ways to infuse the Zapotec language in curriculum in meaningful ways, amid
critique and concerns from parents that doing so slows down literacy instruction in Spanish.
This microethnographic case study of two native Zapotec teachers at two Zapotec bilingual
schools, addresses both ways to achieve decolonial teaching and solutions for including
meaningful Zapotec literacy instruction that builds community-based xkialnana among youth and
keeps mensajes de los abuelitos alive.

Continue reading The People Behind the PhDs 06: Steve Przymus -Should I translanguage, I’m not sure about education? 3-3

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The People Behind the PhDs 06: Steve Przymus -Should I translanguage, I’m not sure about education? 2-3

The People Behind the PhDs 06: Steve Przymus -Should I translanguage, I’m not sure about education? 2-3

Dr. Steve Prymus studies translanguaing, bilingual education, and the assessment of teaching culturally and linguistically diverse exceptional students at Texas Christian University.

In this episode, we talk about how a kid wondering about the world during midnight talks while wandering around a small North Dakota town went on to study translanguaging with stops as a junior high teacher, Peace Corps volunteer, and Fulbright scholar.

Listen to the episode in 3 parts

Part 1 m4a mp3Part 2 m4a mp3Part 3 m4a mp3

People behind the PhDs 06: Steve Przymus – Preview

Dr. Steve Przymus Bio

Steve Daniel Przymus, Ph.D. is an Assistant Professor of Bilingual Education/ESL at Texas Christian University. Steve’s experiences as a U.S. Peace Corps Volunteer (Dominican Republic, 2003-2005), Fulbright Distinguished Awards in Teaching Grantee (Mexico, 2010), and U.S. public school teacher have driven his passion for developing and promoting multimodal/multilingual pedagogies that recognize individuals’ full semiotic repertoires and educational life histories. Steve’s research focusses on the language and identity development of emergent bilinguals through innovative bilingual instruction in the classroom, through socialization in interest-based communities of practice beyond the classroom, and through bilingual semi-anonymous communicative interactions online.The Subliminal Influence of Street Signs in Schoolscapes

Professor Steve Przymus sitting
Professor Steve Przymus sitting

 

  • In the south part of Tucson a majority of the population identifies as Hispanic or Mexican.
  • In the north part of Tucson a majority of the population does not identity itself as Hispanic or Mexican.
  • Yet, in the south part of Tucson a majority of the street signs are in English, and in the north part of Tucson the majority of streets signs are in Spanish.
  • In the south, students are discouraged from speaking Spanish. In the north, students are encouraged to learn Spanish. What gives?
Dr. Z Productions
People behind the PhDs

 

More info at: https://coe.tcu.edu/faculty-staff/steve-przymus/?fbclid=IwAR2I-O0dm2Jxw7i9lvNDCS79vcfivqhjbrOR265Z5qRMcASLkkiE_154s4o

Music by Kate SC

Abstract

Mensajes de los abuelitos: Multimodal Zapotec literacy development via the assertion of local
ontologies and community-based xkialnana (knowledge) in Oaxaca, México

Steve Daniel Przymus, Texas Christian University
https://orcid.org/0000-0002-1882-453X

Felipe Ruiz Jiménez, Escuela Primaria Intercultural Bilingüe: Ramón López Velarde
Virgilia Pérez García, Escuela Primaria Intercultural Bilingüe: Luz y Progreso

Abstract

A challenge facing Zapotec teachers in multicultural bilingual schools in Oaxaca, México is a
persistent colonial and Eurocentric system of national education curriculum that places greater
value on Western, monolingual, epistemological knowing-about knowledge over profound,
community-based, traditional, ontological, Indigenous knowing; a knowledge that is vital to the
maintenance of the Zapotec language and way of life. A “decolonial” (ontological) way of
thinking that values and legitimatizes Indigenous categories of thought can lead to decolonial
education models, such as community-based teaching approaches to literacy development
(Francisco Antonio, 2015, p. 1). The literacy teaching methods, shared within, derive from and
honor community-based xkialnana, local ontologies that work to develop Zapotec
literacy/identity development and challenge normalized/official/colonial knowledge acceptance
at schools. Questions of language planning and policy remain, however, as Zapotec teachers
struggle to find ways to infuse the Zapotec language in curriculum in meaningful ways, amid
critique and concerns from parents that doing so slows down literacy instruction in Spanish.
This microethnographic case study of two native Zapotec teachers at two Zapotec bilingual
schools, addresses both ways to achieve decolonial teaching and solutions for including
meaningful Zapotec literacy instruction that builds community-based xkialnana among youth and
keeps mensajes de los abuelitos alive.

Continue reading The People Behind the PhDs 06: Steve Przymus -Should I translanguage, I’m not sure about education? 2-3

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The People Behind the PhDs 06: Steve Przymus -Should I translanguage, I’m not sure about education? 1-3

The People Behind the PhDs 06: Steve Przymus -Should I translanguage, I’m not sure about education? 1-3

Dr. Steve Prymus studies translanguaing, bilingual education, and the assessment of teaching culturally and linguistically diverse exceptional students at Texas Christian University.

In this episode, we talk about how a kid wondering about the world during midnight talks while wandering around a small North Dakota town went on to study translanguaging with stops as a junior high teacher, Peace Corps volunteer, and Fulbright scholar.

Listen to the episode in 3 parts

Part 1 m4a mp3Part 2 m4a mp3Part 3 m4a mp3

People behind the PhDs 06: Steve Przymus – Preview

Dr. Steve Przymus Bio

Steve Daniel Przymus, Ph.D. is an Assistant Professor of Bilingual Education/ESL at Texas Christian University. Steve’s experiences as a U.S. Peace Corps Volunteer (Dominican Republic, 2003-2005), Fulbright Distinguished Awards in Teaching Grantee (Mexico, 2010), and U.S. public school teacher have driven his passion for developing and promoting multimodal/multilingual pedagogies that recognize individuals’ full semiotic repertoires and educational life histories. Steve’s research focusses on the language and identity development of emergent bilinguals through innovative bilingual instruction in the classroom, through socialization in interest-based communities of practice beyond the classroom, and through bilingual semi-anonymous communicative interactions online.The Subliminal Influence of Street Signs in Schoolscapes

Professor Steve Przymus sitting
Professor Steve Przymus sitting

 

  • In the south part of Tucson a majority of the population identifies as Hispanic or Mexican.
  • In the north part of Tucson a majority of the population does not identity itself as Hispanic or Mexican.
  • Yet, in the south part of Tucson a majority of the street signs are in English, and in the north part of Tucson the majority of streets signs are in Spanish.
  • In the south, students are discouraged from speaking Spanish. In the north, students are encouraged to learn Spanish. What gives?
Dr. Z Productions
People behind the PhDs

 

More info at: https://coe.tcu.edu/faculty-staff/steve-przymus/?fbclid=IwAR2I-O0dm2Jxw7i9lvNDCS79vcfivqhjbrOR265Z5qRMcASLkkiE_154s4o

Music by Kate SC

Abstract

Mensajes de los abuelitos: Multimodal Zapotec literacy development via the assertion of local
ontologies and community-based xkialnana (knowledge) in Oaxaca, México

Steve Daniel Przymus, Texas Christian University
https://orcid.org/0000-0002-1882-453X

Felipe Ruiz Jiménez, Escuela Primaria Intercultural Bilingüe: Ramón López Velarde
Virgilia Pérez García, Escuela Primaria Intercultural Bilingüe: Luz y Progreso

Abstract

A challenge facing Zapotec teachers in multicultural bilingual schools in Oaxaca, México is a
persistent colonial and Eurocentric system of national education curriculum that places greater
value on Western, monolingual, epistemological knowing-about knowledge over profound,
community-based, traditional, ontological, Indigenous knowing; a knowledge that is vital to the
maintenance of the Zapotec language and way of life. A “decolonial” (ontological) way of
thinking that values and legitimatizes Indigenous categories of thought can lead to decolonial
education models, such as community-based teaching approaches to literacy development
(Francisco Antonio, 2015, p. 1). The literacy teaching methods, shared within, derive from and
honor community-based xkialnana, local ontologies that work to develop Zapotec
literacy/identity development and challenge normalized/official/colonial knowledge acceptance
at schools. Questions of language planning and policy remain, however, as Zapotec teachers
struggle to find ways to infuse the Zapotec language in curriculum in meaningful ways, amid
critique and concerns from parents that doing so slows down literacy instruction in Spanish.
This microethnographic case study of two native Zapotec teachers at two Zapotec bilingual
schools, addresses both ways to achieve decolonial teaching and solutions for including
meaningful Zapotec literacy instruction that builds community-based xkialnana among youth and
keeps mensajes de los abuelitos alive.

Continue reading The People Behind the PhDs 06: Steve Przymus -Should I translanguage, I’m not sure about education? 1-3

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The People Behind the PhDs 05: Jay Sanguinetti -Rude awakening, first grades back, brain stimulation 3-3

The People Behind the PhDs 05: Jay Sanguinetti -Rude awakening, first grades back, brain stimulation 3-3

Dr. Jay Sanguinetti studies consciousness, brain stimulation, and meditation at the University of New Mexico in Albuquerque where he works as a Research Assistant Professor. He is also the Assistant Director to the Center for Consciousness Studies at the University of Arizona.

In this episode, I talk with Jay about his journey into discovering that he wanted to study consciousness and and noninvasive brain stimulation. His research also includes:

Listen to the episode in 3 parts

Part 1 m4a mp3Part 2 m4a mp3Part 3 m4a mp3

People behind the PhDs 05: Jay Sanguinetti – Preview

Dr. Jay Sanguinetti Bio

Jay Sanguinetti is a Research Assistant Professor at the University of New Mexico. His team investigates novel forms of brain stimulation, including ultrasound and light-based stimulation, with the goal of enhancing memory, perception, and well-being.  Over the past year, has worked with Shinzen Young to combine brain stimulation and mindfulness to accelerate the positive benefits of mindfulness. Jay was trained in neuroscience and philosophy and is the Assistant Director to the Center for Consciousness Studies in Tucson, Arizona.

Jay currently works with Shinzen Young, a famous meditation teacher, to combine focused ultrasound brain stimulation with meditation.

Dr. Jay Sanguinetti
Dr. Jay Sanguinetti

 

Dr. Jay Sanuinetti with Shinzen Young
Dr. Jay Sanuinetti is putting a focused ultrasound transducer on Shinzen Young‘s head.

 

Music by Kate SC

Increased Excitability Induced in the Primary Motor Cortex by Transcranial Ultrasound Stimulation

https://www.frontiersin.org/articles/10.3389/fneur.2018.01007/full

Benjamin C. Gibson1Joseph L. Sanguinetti1,2Bashar W. Badran1,2,3,4Alfred B. Yu2, Evan P. Klein1Christopher C. Abbott5, Jeffrey T. Hansberger6 and Vincent P. Clark1,7,8*

Background: Transcranial Ultrasound Stimulation (tUS) is an emerging technique that uses ultrasonic waves to noninvasively modulate brain activity. As with other forms of non-invasive brain stimulation (NIBS), tUS may be useful for altering cortical excitability and neuroplasticity for a variety of research and clinical applications. The effects of tUS on cortical excitability are still unclear, and further complications arise from the wide parameter space offered by various types of devices, transducer arrangements, and stimulation protocols. Diagnostic ultrasound imaging devices are safe, commonly available systems that may be useful for tUS. However, the feasibility of modifying brain activity with diagnostic tUS is currently unknown.

Objective: We aimed to examine the effects of a commercial diagnostic tUS device using an imaging protocol on cortical excitability. We hypothesized that imaging tUS applied to motor cortex could induce changes in cortical excitability as measured using a transcranial magnetic stimulation (TMS) motor evoked potential (MEP) paradigm.

Methods: Forty-three subjects were assigned to receive either verum (n = 21) or sham (n = 22) diagnostic tUS in a single-blind design. Baseline motor cortex excitability was measured using MEPs elicited by TMS. Diagnostic tUS was subsequently administered to the same cortical area for 2 min, immediately followed by repeated post-stimulation MEPs recorded up to 16 min post-stimulation.

Results: Verum tUS increased excitability in the motor cortex (from baseline) by 33.7% immediately following tUS (p = 0.009), and 32.4% (p = 0.047) 6 min later, with excitability no longer significantly different from baseline by 11 min post-stimulation. By contrast, subjects receiving sham tUS showed no significant changes in MEP amplitude.

Conclusion: These findings demonstrate that tUS delivered via a commercially available diagnostic imaging ultrasound system transiently increases excitability in the motor cortex as measured by MEPs. Diagnostic tUS devices are currently used for internal imaging in many health care settings, and the present results suggest that these same devices may also offer a promising tool for noninvasively modulating activity in the central nervous system. Further studies exploring the use of diagnostic imaging devices for neuromodulation are warranted.

About Dr. Z Podcasts

The mission of Dr. Z Podcasts is to find, record, and share stories about humans engaged in one of the 6As* of life.

*6As = athletics, adventure, academics, art, advocacy, human algorithm. The 6As is the name of the book I am writing and the foundation for Dr. Z Podcasts.

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About Dr. Z

Thanks for visiting my site. My name is Zachary Brooks, the “Z” behind “Dr. Z.” Enjoy the content and please send me questions and comments. *I earned a doctorate in Second Language Acquisition with concentrations in cognitive science and management from the University of Arizona.

Dr. Z Zachary S Brooks
Dr. Z Zachary S Brooks

Continue reading The People Behind the PhDs 05: Jay Sanguinetti -Rude awakening, first grades back, brain stimulation 3-3

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The People Behind the PhDs 05: Jay Sanguinetti -Rude awakening, first grades back, brain stimulation 2-3

The People Behind the PhDs 05: Jay Sanguinetti -Rude awakening, first grades back, brain stimulation 2-3

Dr. Jay Sanguinetti studies consciousness, brain stimulation, and meditation at the University of New Mexico in Albuquerque where he works as a Research Assistant Professor. He is also the Assistant Director to the Center for Consciousness Studies at the University of Arizona.

In this episode, I talk with Jay about his journey into discovering that he wanted to study consciousness and and noninvasive brain stimulation. His research also includes:

Listen to the episode in 3 parts

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People behind the PhDs 05: Jay Sanguinetti – Preview

Dr. Jay Sanguinetti Bio

Jay Sanguinetti is a Research Assistant Professor at the University of New Mexico. His team investigates novel forms of brain stimulation, including ultrasound and light-based stimulation, with the goal of enhancing memory, perception, and well-being.  Over the past year, has worked with Shinzen Young to combine brain stimulation and mindfulness to accelerate the positive benefits of mindfulness. Jay was trained in neuroscience and philosophy and is the Assistant Director to the Center for Consciousness Studies in Tucson, Arizona.

Jay currently works with Shinzen Young, a famous meditation teacher, to combine focused ultrasound brain stimulation with meditation.

Dr. Jay Sanguinetti
Dr. Jay Sanguinetti

 

Dr. Jay Sanuinetti with Shinzen Young
Dr. Jay Sanuinetti is putting a focused ultrasound transducer on Shinzen Young‘s head.

 

Music by Kate SC

Increased Excitability Induced in the Primary Motor Cortex by Transcranial Ultrasound Stimulation

https://www.frontiersin.org/articles/10.3389/fneur.2018.01007/full

Benjamin C. Gibson1Joseph L. Sanguinetti1,2Bashar W. Badran1,2,3,4Alfred B. Yu2, Evan P. Klein1Christopher C. Abbott5, Jeffrey T. Hansberger6 and Vincent P. Clark1,7,8*

Background: Transcranial Ultrasound Stimulation (tUS) is an emerging technique that uses ultrasonic waves to noninvasively modulate brain activity. As with other forms of non-invasive brain stimulation (NIBS), tUS may be useful for altering cortical excitability and neuroplasticity for a variety of research and clinical applications. The effects of tUS on cortical excitability are still unclear, and further complications arise from the wide parameter space offered by various types of devices, transducer arrangements, and stimulation protocols. Diagnostic ultrasound imaging devices are safe, commonly available systems that may be useful for tUS. However, the feasibility of modifying brain activity with diagnostic tUS is currently unknown.

Objective: We aimed to examine the effects of a commercial diagnostic tUS device using an imaging protocol on cortical excitability. We hypothesized that imaging tUS applied to motor cortex could induce changes in cortical excitability as measured using a transcranial magnetic stimulation (TMS) motor evoked potential (MEP) paradigm.

Methods: Forty-three subjects were assigned to receive either verum (n = 21) or sham (n = 22) diagnostic tUS in a single-blind design. Baseline motor cortex excitability was measured using MEPs elicited by TMS. Diagnostic tUS was subsequently administered to the same cortical area for 2 min, immediately followed by repeated post-stimulation MEPs recorded up to 16 min post-stimulation.

Results: Verum tUS increased excitability in the motor cortex (from baseline) by 33.7% immediately following tUS (p = 0.009), and 32.4% (p = 0.047) 6 min later, with excitability no longer significantly different from baseline by 11 min post-stimulation. By contrast, subjects receiving sham tUS showed no significant changes in MEP amplitude.

Conclusion: These findings demonstrate that tUS delivered via a commercially available diagnostic imaging ultrasound system transiently increases excitability in the motor cortex as measured by MEPs. Diagnostic tUS devices are currently used for internal imaging in many health care settings, and the present results suggest that these same devices may also offer a promising tool for noninvasively modulating activity in the central nervous system. Further studies exploring the use of diagnostic imaging devices for neuromodulation are warranted.

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Dr. Z Zachary S Brooks
Dr. Z Zachary S Brooks

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