9 results on '"Jessica Huffman"'
Search Results
2. Effects of isolation housing stress and mouse strain on intravenous cocaine self-administration, sensory stimulus self-administration, and reward preference
- Author
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Michael Leonardo, Sarah Brunty, Jessica Huffman, Deranda B. Lester, and Price E. Dickson
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Medicine ,Science - Abstract
Abstract Sensory stimuli are natural rewards in mice and humans. Consequently, preference for a drug reward relative to a sensory reward may be an endophenotype of addiction vulnerability. In this study, we developed a novel behavioral assay to quantify the preference for intravenous drug self-administration relative to sensory stimulus self-administration. We used founder strains of the BXD recombinant inbred mouse panel (C57BL/6J, DBA/2J) and a model of stress (isolation vs enriched housing) to assess genetic and epigenetic effects. Following 10 weeks of differential housing, all mice were tested under three reward conditions: sensory rewards available, cocaine rewards available, both rewards available. When a single reward was available (sensory stimuli or cocaine; delivered using distinct levers), DBA/2J mice self-administered significantly more rewards than C57BL/6J mice. When both rewards were available, DBA/2J mice exhibited a significant preference for cocaine relative to sensory stimuli; in contrast, C57BL/6J mice exhibited no preference. Housing condition influenced sensory stimulus self-administration and strain-dependently influenced inactive lever pressing when both rewards were available. Collectively, these data reveal strain effects, housing effects, or both on reward self-administration and preference. Most importantly, this study reveals that genetic mechanisms underlying preference for a drug reward relative to a nondrug reward can be dissected using the full BXD panel.
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- 2023
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3. Intravenous fentanyl self-administration in male and female C57BL/6J and DBA/2J mice
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Michael Leonardo, Sarah Brunty, Jessica Huffman, Alexis Kastigar, and Price E. Dickson
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Medicine ,Science - Abstract
Abstract The genetic mechanisms underlying fentanyl addiction, a highly heritable disease, are unknown. Identifying these mechanisms will lead to better risk assessment, early diagnosis, and improved intervention. To this end, we used intravenous fentanyl self-administration to quantify classical self-administration phenotypes and addiction-like fentanyl seeking in male and female mice from the two founder strains of the BXD recombinant inbred mouse panel (C57BL/6J and DBA/2J). We reached three primary conclusions from these experiments. First, mice from all groups rapidly acquired intravenous fentanyl self-administration and exhibited a dose–response curve, extinction burst, and extinction of the learned self-administration response. Second, fentanyl intake (during acquisition and dose response) and fentanyl seeking (during extinction) were equivalent among groups. Third, strain effects, sex effects, or both were identified for several addiction-like behaviors (cue-induced reinstatement, stress-induced reinstatement, escalation of intravenous fentanyl self-administration). Collectively, these data indicate that C57BL/6J and DBA/2J mice of both sexes were able to acquire, regulate, and extinguish intravenous fentanyl self-administration. Moreover, these data reveal novel strain and sex effects on addiction-like behaviors in the context of intravenous fentanyl self-administration in mice and indicate that the full BXD panel can be used to identify and dissect the genetic mechanisms underlying these effects.
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- 2023
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4. Effective eLearning and Transformative Pedagogical Strategies: STEM Programs.
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Daniel W. Keebler and Jessica Huffman
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- 2020
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5. Effective eLearning and Transformative Pedagogical Strategies
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Jessica Huffman and Daniel W. Keebler
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Liberal arts education ,Teaching method ,Learning environment ,Online learning ,05 social sciences ,050301 education ,02 engineering and technology ,Education ,Cohesion (linguistics) ,Transformative learning ,020204 information systems ,ComputingMilieux_COMPUTERSANDEDUCATION ,0202 electrical engineering, electronic engineering, information engineering ,Mathematics education ,Cognitive skill ,0503 education ,Curriculum - Abstract
This research exposed gaps in the current literature for online learning and transformative pedagogical strategies in STEM (science, technology, engineering and mathematics) programs. These voids were explored, and new blended strategies were provided to encourage online educators to develop effective pedagogical designs in STEM programs. Online education is no longer thought of as a passing trend, but as a viable alternative to traditional educational teaching methods. STEM educators need to develop online learning platforms that are flexible and effective, that enrich the student's experience while not diminishing the intellectual growth of the learner. This will help build learner cohesion and a more stable and effective learning environment, one that has the opportunity to develop into a community of learning. Research indicates that the STEM areas of study require a different pedagogical design than those in other curricula such as liberal arts and social science programs, specifically in the area of developing Higher Order Cognitive Skills (HOCS) in learners. This paper focuses on the pedagogical designs that will enable universities to successfully establish STEM online learning programs at their institutions.
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- 2020
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6. Prevalence and Levels of Parasitemia of
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Brian T, Cooney, Dana, Elhassani, Arafat, Bari, Jessica, Huffman, and Evelyn, Frazier
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Florida ,Prevalence ,Animals ,Parasitemia ,Apicomplexa ,Protozoan Infections, Animal ,Turtles - Published
- 2018
7. Comparative Stability of Vitamin K1 Oral Liquids Prepared in Sterile Water for Injection and Stored in Amber Glass Bottles and Amber Plastic Syringes
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Jessica, Huffman, Stacy, Brown, Paul, Lewis, Sarah, Lawson, Amanda, Ogle, and Gina, Peacock
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Drug Stability ,Drug Storage ,Syringes ,Administration, Oral ,Sterilization ,Vitamin K 1 ,Amber ,Injections - Abstract
The purpose of this study was to evaluate the stability of vitamin K1 oral liquids in Sterile Water for Injection when stored in amber glass bottles and amber plastic syringes under refrigerated conditions. Four 100-mL batches of vitamin K1 in Sterile Water for Injection were prepared in amber glass bottles to protect from light. One of the batches was divided into 1-mL aliquots, using amber plastic oral syringes, and capped. The prepared bottles and syringes were stored in a laboratory refrigerator. On each day of sampling, 1-mL aliquots were removed from each bottle and mixed with an equal volume of ethanol. Likewise, the contents of sample syringes were mixed with ethanol to achieve an assay concentration of 0.5 mg/mL. Recovery of vitamin K1 in the compounded samples was quantified against a United States Pharmacopeia reference standard. Quantification was achieved using a stability-indicating high-performance liquid chromatography with ultraviolent light detection method. Product stability is defined as 90% to 110% of the initial concentration. The percent recovery in the Sterile Water for Injection preparations in glass bottles remained above 90% for the 105-day duration of the study, but some samples stored in amber plastic syringes fell below 90% on day 21. Furthermore, a statistically significant difference (2-way ANOVA, P0.0001) emerged between syringes at day 0 and day 30, and this trend continued through the day 60, 90, and 105 samples. The only statistically significant difference found within the bottle-stored samples occurred on day 105 (versus zero, P = 0.0465), but the recovery on day 105 still exceeded 90%. Vitamin K1 in Sterile Water for Injection, stored in a refrigerated amber glass bottle, is stable for 105 days. This preparation can also be stored in amber plastic syringes, but this decreases the beyond-use date to 14 days.
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- 2018
8. Beyond-use dating of lidocaine alone and in two 'magic mouthwash' preparations
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Loren Madden Kirk, Paul O. Lewis, Stacy D. Brown, Amanda Ogle, Jessica Huffman, and Yao Luu
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Magnesium Hydroxide ,Lidocaine ,Drug Compounding ,Drug Storage ,Mouthwashes ,Administration, Oral ,Aluminum Hydroxide ,Antineoplastic Agents ,Oral cavity ,01 natural sciences ,03 medical and health sciences ,0302 clinical medicine ,Drug Stability ,Neoplasms ,medicine ,Lack of efficacy ,Simethicone ,Humans ,Drug Packaging ,Pharmacology ,Analgesics ,Stomatitis ,Chromatography ,business.industry ,Health Policy ,Syringes ,010401 analytical chemistry ,Diphenhydramine ,Magic Mouthwash ,Mouth Mucosa ,Temperature ,Repeatability ,0104 chemical sciences ,Topical lidocaine ,Drug Combinations ,030220 oncology & carcinogenesis ,Anesthesia ,business ,medicine.drug - Abstract
Purpose Beyond-use dating (BUD) of lidocaine alone and in two “magic mouthwash” preparations stored in amber oral syringes at room temperature was determined. Methods Two formulations of mouthwash containing oral topical lidocaine 2% (viscous), diphenhydramine 2.5 mg/mL, and aluminum hydroxide–magnesium hydroxide–simethicone were prepared in 1:1:1 and 1:2.5:2.5 ratios, divided into 3-mL samples, and stored in unit-dose oral amber syringes. Unit-dose single-product lidocaine samples were also prepared to serve as controls and stored in oral amber syringes. The lidocaine concentrations in these samples were measured periodically for 90 days. A stability-indicating high-performance liquid chromatographic method was developed and validated for system suitability, accuracy, repeatability, intermediate precision, specificity, linearity, and robustness. Results Based on the calculated percentages versus the initial concentration and the results from an analysis of variance comparing the two formulations, a BUD of 21 days is deemed appropriate for both magic mouthwash formulations. Based on the stability data, published safety concerns, and lack of efficacy in combination, packaging and dispensing lidocaine separately from other ingredients are recommended when administering magic mouthwash mixtures. Utilizing a 90-day BUD, lidocaine can be packaged separately from other magic mouthwash ingredients in individual dosage units and applied to the oral cavity using the swish-and-spit method. The delivery of the diphenhydramine and aluminum hydroxide–magnesium hydroxide–simethicone could be separated, allowing for a swish-and-swallow method of administration. Conclusion A BUD of 21 days is recommended for lidocaine prepared with diphenhydramine and aluminum hydroxide–magnesium hydroxide–simethicone in ratios of 1:1:1 and 1:2.5:2.5 and stored at room temperature in amber oral plastic syringes.
- Published
- 2017
9. Missing the Mark: The Neglect of Stalking and Cyberstalking in Introductory Criminology Textbooks
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Jessica Huffman and Angela Overton
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Class (computer programming) ,media_common.quotation_subject ,Criminology ,Social issues ,Student education ,Education ,Neglect ,Cyberstalking ,Sociology ,Law ,Inclusion (education) ,Stalking ,Criminal justice ,media_common - Abstract
Textbooks are an essential component of student education, often forming the basis for all information presented in a given class. Introductory texts cannot possibly cover all relevant material, but what is included speaks volumes. Given the prevalence of stalking and cyberstalking in society, this is an important issue for inclusion in introductory criminology and criminal justice classes. An analysis of 20 criminology and 12 criminal justice textbooks is done to determine what students are learning about this prevalent social problem. Specifically, we aim to evaluate whether stalking and cyberstalking are covered, determine the theories associated with the issues, and assess the textbook location in which the issue is covered. Results indicate slight coverage of stalking and cyberstalking in introductory texts.
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- 2013
- Full Text
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