46 research outputs found
Efficacy of an aquatic movement program for individuals with arthritis
This study was conducted to determine the effectiveness of an aquatic movement program of individuals with arthritis. The Arthritis Foundation YMCA Aquatic Program\u27s (AFYAP) guidelines and procedures were used to structure a six week aquatic movement program at Longview, a senior citizen residential community in Ithaca, NY.
[This is an excerpt from the abstract. For the complete abstract, please see the document.
Hegelian and syllogistic logic compared
Thesis (M.A.)--Boston University, 1947. This item was digitized by the Internet Archive
Investigation of a yellow lake pigment using 2D-LC and EC-SERS
1 online resource (xix, 116 pages) : colour illustrationsIncludes abstract and appendix.Includes bibliographical references (pages 102-106).The identification of natural organic pigments is fundamental for the conservation, preservation, and historical interpretation of artwork. Natural pigments, derived from plant and insect sources, can experience fading and degradation over time due to light, air, and humidity exposure. As such, these naturally-derived pigments are referred to as fugitive pigments. Although these pigments are derived from simple sources, it can be a significant challenge to characterize these pigments by a single method since they are found in complex matrices and are comprised of many components varying in their chemical structure and properties. Many spectroscopic techniques have been used successfully for the identification of fugitive pigments, such as Raman and infrared spectroscopy. Although these techniques are quite useful, they have their disadvantages. Raman spectroscopy is inherently weak, with only one in a million photons undergoing inelastic scattering. In addition, molecules which are also fluorescent, such as many natural organic pigments, will be difficult to detect using Raman spectroscopy due to the competing fluorescence. An enhanced variant of Raman spectroscopy, called surface-enhanced Raman spectroscopy or SERS, has shown much promise in this area over the past 15 years, with many natural organic pigments being identified in precious artworks as a result. However, a significant limitation of SERS is the ability to identify organic pigments present in a complex mixture and this limitation is due to the fact that SERS by itself offers no separation capabilities. While coupling of separation techniques such as thin layer chromatography and liquid chromatography have been attempted and have been successful, even for artist colourants, the combination of multidimensional chromatography and SERS has not yet been attempted and is the focus of this thesis work.1,2 Multidimensional liquid chromatography (2D-LC) is appropriate for addressing the increasing demand for decoding complex samples and has recently been found to be useful for the separation of artist colourants.3 However, it remains challenging to identify the components in such complex mixtures in a rapid and confirmatory way. Consequently, this thesis work has explored a 2D-LC-EC-SERS method, wherein electrochemical SERS (EC SERS) is used as the offline detection modality for multidimensional chromatography. This thesis work hypothesizes that 2D-LC-EC-SERS can be used for the identification of components in pigment samples, with a future goal of elucidation of the pigment degradation pathways for yellow lake pigments in particular
(E)-3-Bromo-N-(1,3-oxazolidin-2-ylidene)benzamide
The five- and six-membered rings in the title compound, C10H9BrN2O2, are essentially coplanar. This is consistent with a highly conjugated system, as seen in the short N—C bond distances of 1.308 (6) and 1.317 (5) Å
Alien Registration- Eisnor, Eben (Northport, Waldo County)
https://digitalmaine.com/alien_docs/5015/thumbnail.jp
Alien Registration- Eisnor, Elva I. (Bangor, Penobscot County)
https://digitalmaine.com/alien_docs/15896/thumbnail.jp
Electrochemical Behavior of Metals Used in Drinking Water Distribution Systems: A Rotating Cylinder Electrode's Study
Orthographic Mapping: a Tool for Success in Reading, Vocabulary Word Knowledge, Meaning, and Self Teaching in the Primary Grades
High frequency words are words that appear often within text. These words often contain unfamiliar letter/sound patterns. In the past, educators have encouraged students to learn high frequency words beyond their level of decoding skill by techniques such as memorization, chants and mnemonics. Research is showing that students are capable of decoding words with unfamiliar letter/sound patterns; when they use phonic skills to do this work the words are stored in their memories. Orthographic mapping provides a structure by which students are able to practice listening for sounds, and determining corresponding letter patterns. Students are capable of decoding challenging letter/sound patterns, and when they can read words with automaticity, they are then freed up to focus on meaning. When students build these skills, their comprehension, vocabulary recognition and self teaching skills are positively impacted. This project seeks to give teachers instruction on how to build their students decoding abilities through orthographic mapping. The project focuses on mapping routines, word lists and vocabulary word study. Educators will have an opportunity to reflect on current approaches and goals around their teaching of high frequency words and vocabulary words
The pairing of two-dimensional iquid chromatography and electrochemical surface-enhanced raman spectroscopy to provide thorough separation and detection of complex samples
1 online resource (xix, 158 pages) : illustrations (chiefly colour), colour maps, charts (some colour), graphs (some colour)Includes abstract and appendix.Includes bibliographical references (pages 146-154).Dissolved organic matter (DOM) and green tea are known complex substances requiring advanced
separation techniques and ultrasensitive detection methods for characterization and identification.
DOM is ubiquitous in water bodies and participates in the global carbon cycle, undergoing
complex transformation through photochemical and microbial processes. Green tea is one of the
most consumed beverages in the world and is rich in polyphenolic compounds. Separation and
identification of components in green tea is useful for gauging tea quality. In this work, 2D-LC and
EC-SERS were explored for the first time to analyze compounds in DOM and green tea. 2D-LC offers
enhanced separation compared to conventional HPLC systems since there are two dimensions present.
EC-SERS was used as an offline detection modality to help identify the compounds in DOM and green
tea. 2D-LC-EC-SERS was successfully performed for green tea and preliminary work was conducted
for DOM taken from the Sackville River