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Did you mean baum?
Showing 1 to 15 of 34 results Save | Export
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Campbell, Eric V.; Miller, Joel S. – Journal of Chemical Education, 2018
Expensive, highly reflective barium sulfate plates are typically used to obtain solid-state UV-vis electronic spectra. Through normal laboratory use these plates become dirty, chip, and break, thus requiring replacement. An alternative to purchasing new plates is to make your own by combining a mechanical stabilizer, such as gum arabic, with…
Descriptors: Spectroscopy, Organic Chemistry, Laboratory Experiments, Science Laboratories
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Hazen, Jeffery L.; Cleary, David A. – Journal of Chemical Education, 2014
Precipitation of barium phosphate from aqueous solutions of a barium salt and a phosphate salt forms the basis for a number of conclusions drawn in general chemistry. For example, the formation of a solid white precipitate is offered as evidence that barium phosphate is insoluble. Furthermore, analysis of the supernatant is used to illustrate the…
Descriptors: Science Instruction, Chemistry, Science Curriculum, Scientific Principles
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Nagy, Ahmed; Steele, Catriona M.; Pelletier, Cathy A. – Journal of Speech, Language, and Hearing Research, 2014
Purpose: The authors examined the impact of barium on the perceived taste intensity of 7 different liquid tastant stimuli and the modulatory effect that these differences in perceived taste intensity have on swallowing behaviors. Method: Participants were 80 healthy women, stratified by age group (<40; >60) and genetic taste status…
Descriptors: Adults, Females, Perception, Stimuli
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Dietsch, Angela M.; Dorris, H. Duncan; Pearson, William G.; Dietrich-Burns, Katie E.; Solomon, Nancy Pearl – Journal of Speech, Language, and Hearing Research, 2019
Purpose: This study explored the effects of high-concentration taste manipulation trials on swallow function in persons with sensory-based dysphagia. Method: Dysphagia researchers partnered with clinical providers to prospectively identify traumatically injured U.S. military service members (N = 18) with sensory-based dysphagia as evidenced by…
Descriptors: Human Body, Sensory Experience, Stimuli, Biochemistry
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Humbert, Ianessa A.; Sunday, Kirstyn L.; Karagiorgos, Eleni; Vose, Alicia K.; Gould, Francois; Greene, Lindsey; Azola, Alba; Tolar, Ara; Rivet, Alycia – Journal of Speech, Language, and Hearing Research, 2018
Purpose: The aim of this study was to examine the effects of frozen and mixed-consistency boluses on the swallowing physiology of younger and older adults. We also aimed to quantify factors that lead to increased variability in swallowing outcomes (i.e., age, sex, bolus type). Method: Forty-one healthy adults (18-85 years old) swallowed 5 blocks…
Descriptors: Adults, Motor Reactions, Age Differences, Gender Differences
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Steele, Catriona M.; Peladeau-Pigeon, Melanie; Barbon, Carly A. E.; Guida, Brittany T.; Tapson, Melanie S.; Valenzano, Teresa J.; Waito, Ashley A.; Wolkin, Talia S.; Hanson, Ben; Ong, Jane Jun-Xin; Duizer, Lisa M. – Journal of Speech, Language, and Hearing Research, 2019
Purpose: During swallowing, the tongue generates the primary propulsive forces that transport material through the oral cavity toward the pharynx. Previous literature suggests that higher tongue pressure amplitudes are generated for extremely thick liquids compared with thin liquids. The purpose of this study was to collect detailed information…
Descriptors: Human Body, Physiology, Adults, Stimuli
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Garcia, Jennifer; Schultz, Linda D. – Journal of Chemical Education, 2016
The classic technique for sulfate analysis in an undergraduate quantitative analysis lab involves precipitation as the barium salt with barium chloride, collection of the precipitate by gravity filtration using ashless filter paper, and removal of the filter paper by charring over a Bunsen burner. The entire process is time-consuming, hazardous,…
Descriptors: Science Instruction, College Science, Undergraduate Study, Science Experiments
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Valenzano, Teresa J.; Guida, Brittany T.; Peladeau-Pigeon, Melanie; Steele, Catriona M. – Journal of Speech, Language, and Hearing Research, 2020
Purpose: Respiratory-swallow coordination is vital for airway protection, preventing aspiration, or penetration of foreign material into the airway. With the implementation of the International Dysphagia Diet Standardization Initiative definitions for different liquid consistencies used in dysphagia management, it is important to establish whether…
Descriptors: Adults, Human Body, Motor Reactions, Gender Differences
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Hazelwood, R. Jordan; Armeson, Kent E.; Hill, Elizabeth G.; Bonilha, Heather Shaw; Martin-Harris, Bonnie – Journal of Speech, Language, and Hearing Research, 2017
Purpose: The purpose of this study was to identify which swallowing task(s) yielded the worst performance during a standardized modified barium swallow study (MBSS) in order to optimize the detection of swallowing impairment. Method: This secondary data analysis of adult MBSSs estimated the probability of each swallowing task yielding the derived…
Descriptors: Probability, Physical Disabilities, Severity (of Disability), Disability Identification
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Herzberg, Erica G.; Brates, Danielle; Molfenter, Sonja M. – Journal of Speech, Language, and Hearing Research, 2019
Purpose: Previous work has established that advanced bolus location at swallow onset (BLSO) alone is not correlated with an increased swallowing safety risk in healthy seniors. The primary goal of this retrospective study was to examine whether healthy seniors systematically alter their laryngeal vestibule closure reaction time (LVCrt) to maintain…
Descriptors: Older Adults, Physiology, Reaction Time, Motor Reactions
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Steele, Catriona M.; Peladeau-Pigeon, Melanie; Barbon, Carly A. E.; Guida, Brittany T.; Namasivayam-MacDonald, Ashwini M.; Nascimento, Weslania V.; Smaoui, Sana; Tapson, Melanie S.; Valenzano, Teresa J.; Waito, Ashley A.; Wolkin, Talia S. – Journal of Speech, Language, and Hearing Research, 2019
Purpose: Thickened liquids are frequently used as an intervention for dysphagia, but gaps persist in our understanding of variations in swallowing behavior based on incremental thickening of liquids. The goal of this study was to establish reference values for measures of bolus flow and swallowing physiology in healthy adults across the continuum…
Descriptors: Human Body, Psychomotor Skills, Adults, Physical Disabilities
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Miles, Anna – International Journal of Language & Communication Disorders, 2017
Background: Oesophageal abnormalities are common findings in a speech-language therapy videofluoroscopy clinic. Fluoroscopic screening involving oropharynx alone fails to identify these patients. Oesophageal screening as an adjunct to videofluoroscopy is gaining popularity. Yet currently, little is known about the reliability of speech and…
Descriptors: Interrater Reliability, Speech Therapy, Allied Health Personnel, Speech Language Pathology
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Thananatthanachon, Todsapon – Journal of Chemical Education, 2016
In this experiment, the students explore the synthesis of a crystalline solid-state material, barium zirconate (BaZrO3) by two different synthetic methods: (a) the wet chemical method using BaCl[subscript 2]·2H[subscript 2]O and ZrOCl[subscript 2]·8H[subscript 2]O as the precursors, and (b) the solid-state reaction from BaCO[subscript 3] and…
Descriptors: Inorganic Chemistry, Synthesis, Laboratory Experiments, Scientific Methodology
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Brates, Danielle; Steele, Catriona M.; Molfenter, Sonja M. – Journal of Speech, Language, and Hearing Research, 2020
Purpose: A method for controlling for sex-based differences in measures of hyoid movement using an internal anatomical scalar has been validated in young healthy individuals. Known anatomical changes with aging necessitate validation of this methodology in a mixed-age sample. The primary aim of this study was to validate a method for controlling…
Descriptors: Anatomy, Age Differences, Gender Differences, Measurement
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Belle-Oudry, Deirdre – Journal of Chemical Education, 2008
The determination of sulfate concentration in water by indirect EDTA titration is an instructive experiment that is easily implemented in an analytical chemistry laboratory course. A water sample is treated with excess barium chloride to precipitate sulfate ions as BaSO[subscript 4](s). The unprecipitated barium ions are then titrated with EDTA.…
Descriptors: Water Quality, Chemistry, Science Instruction, Laboratory Experiments
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