A5001857660- American Constitutional Law and Politics
- Race, History, and American Society
- Cultural Heritage Materials Analysis
- American Environmental and Regional History
- Colonialism, slavery, and trade
- Conservation Techniques and Studies
- Building materials and conservation
- Archaeology and ancient environmental studies
- American History and Culture
- Chemistry and Chemical Engineering
- Archaeological Research and Protection
- Archaeology and Natural History
- Parental Involvement in Education
- Early Childhood Education and Development
- Various Chemistry Research Topics
- Historical Studies and Socio-cultural Analysis
- Cultural Heritage Management and Preservation
- Ancient Mediterranean Archaeology and History
- Biotechnology and Related Fields
- Historical and Cultural Archaeology Studies
- Environmental Justice and Health Disparities
- Education, Achievement, and Giftedness
- Historical Economic and Social Studies
- Maritime and Coastal Archaeology
- Historical and Architectural Studies
Museum of Fine Arts, Boston
2012-2023
Rochester Institute of Technology
2000-2023
Humber Teaching NHS Foundation Trust
2018-2023
Museum of Fine Arts
1995-2021
Arizona State University
2020
Middle East Studies Association of North America
2020
University of Cambridge
1990-2020
U.S. National Arboretum
2017
Harvard University
2017
Library Company of Philadelphia
2015
Elementary-school children were asked why they do, or do not, ask for help from parents, teachers, and classmates when have problems in math reading. Responses correlated with achievement scores
This study investigated students' perceptions of their teachers and classmates in relation to reported academic help seeking. 177 students at grades 3, 5, 7 were interviewed individually using a structured questionnaire assess who, why, what situations they asked for when had problems math class. Results indicated that generally preferred the teacher as helpers saw teacher, comparison classmates, more likely facilitate learning less think "dumb" asking questions. Several grade-related...
How abolitionism evolved from an elite and conservative movement to a radical, grassroots reform cause; Most accounts date the birth of American 1831, when William Lloyd Garrison began publishing his radical antislavery newspaper, The Liberator. In fact, however, abolition had been born with Republic. decades following Revolution, abolitionists worked steadily eliminate slavery racial injustice, their tactics strategies constantly evolved. Tracing development abolitionist 1770s 1830s,...
We have used MALDI-TOF mass spectrometry to characterize a selection of dyes from the Schweppe dye collection and pigments Tate Gallery collection. spectra such samples are easily obtained and, through observation both positive negative ion spectra, provide convenient, versatile method for characterization identification. Such pairs immediately distinguish between acidic basic characteristic either molecular or simply related fragment ion. This approach is especially useful in situations...
The unusual resin from some species of Elaeagia, a genus now found in certain parts Central America and South America, was probably first utilized by native peoples Colombia more than thousand years ago. It became crucial part often elaborately decorated objects made the southwestern city Pasto colonial period, it has continued to be used there up present, which is at core local craft tradition. also for about 300 Inka, mainly decorate qeros (ceremonial drinking cups). referred as mopa-mopa...
In this story about one of the 19th century's most famous Americans, Benjamin Reiss uses P.T. Barnum's Joice Heth hoax to examine contours race relations in antebellum North. first exhibit as a showman, was an elderly enslaved woman who said be 161-year-old former nurse infant George Washington. Seizing upon novelty, newly emerging commercial press turned her act - and especially death into media spectacles American history. piecing together fragmentary conflicting evidence event, paints...
AbstractInfrared spectroscopy has been used successfully in the characterization of several types painting materials. Although most often employed with organic materials, technique can also yield valuable structural information on many inorganic compounds. Several applications infrared to pigments are reviewed, theoretical bases for spectra these materials considered, and characteristic presented. The discussed include chrome greens, green earths, chromium oxide viridian. Synthetic be...
This essay examines the creation and meaning of Pennsylvania anti-slavery borderland that developed in United States during late eighteenth early nineteenth centuries. Drawing on voluminous legal files Abolition Society (the world's oldest organisation), as well recent insights by scholars working both emancipation borderlands history Atlantic world, I argue enslaved people their allies defined Pennsylvania's territorial boundaries ways abetted black freedom claims. Indeed, though a...
As part of a project designed to systematically identify colorants on Japanese woodblock prints, excitation–emission matrix (EEM), or three-dimensional, fluorescence spectroscopy, equipped with fiber optic probe, was used characterize natural yellow and red organic 18th-century prints without taking samples. This analysis technique collected emission spectra in the visible region for sequence excitation wavelengths at 10 nm steps from 250 600 nm. The resultant data set provided...
A native South American phenolic resin commonly called mopa was used for many centuries in two cultural contexts, by artisans the region of Pasto, Colombia (where it is still used), and Inka Peru, where to decorate ceremonial drinking cups known as qeros. It softened a rubbery state heating water, mixed with colorants, stretched into thin layers applied inlay wooden surfaces various kinds objects. The comes from trees genus Elaeagia, which grows mountainous regions western America Ecuador....
After the Portuguese discovered Cape Verde Islands in AD 1456 they divided its main island, Santiago, into two governing captaincies. The founding settlement south-west, Cidade Velha, soon became Islands’ capital and a thriving trade centre; contrast, that east, Alcatrazes, only lasted as an official seat from 1484–1516 is held to have ‘failed’ (see Richter 2015).
This study investigates the efficacy of a sampling technique to acquire sufficient sample for peptide mass fingerprinting analysis (PMF) with minimal alteration photograph surfaces. The technique, which is potentially useful surface coatings in wide variety situations, uses very fine polishing film (1–30 μm particles, 14,000–600 grit) abrade and remove small amounts material consistent PMF requirements. Several variations devices were evaluated using coated salt print mock-ups collection...