Pub Date : 2020-11-04DOI: 10.32473/ufjur.v22i0.121814
Rachel Bomser, H. Gibson, Hongping Zhang
Since 2007, the University of Florida has hosted summer field-based, sustainability-focused study abroad programs in Australia, New Zealand, and Fiji. The purpose of this study was to examine the impact of these study abroad programs on change of major and subsequent career choice. Program alumni (2007-2019) completed an online questionnaire. N=94 responded to questions about impact on major (yes=1, no=2), career choice (yes=1, no=2), and open-ended responses. Data were analyzed using descriptive statistics, chi square, and content analysis. Five of 94 respondents changed majors and 39/93 reported study abroad influenced their career choice. Content analysis revealed participation influenced: n=14 to pursue a sustainability-focused career, n=8 to work in “a helping-profession”, n=6 to pursue ecotourism, and n=4 to study environmental law. Program participation seems to be influential for some in future career choice, but not major change.
{"title":"Pacific Study Abroad Program’s Impact on Students’ Major and Career Choice","authors":"Rachel Bomser, H. Gibson, Hongping Zhang","doi":"10.32473/ufjur.v22i0.121814","DOIUrl":"https://doi.org/10.32473/ufjur.v22i0.121814","url":null,"abstract":"Since 2007, the University of Florida has hosted summer field-based, sustainability-focused study abroad programs in Australia, New Zealand, and Fiji. The purpose of this study was to examine the impact of these study abroad programs on change of major and subsequent career choice. Program alumni (2007-2019) completed an online questionnaire. N=94 responded to questions about impact on major (yes=1, no=2), career choice (yes=1, no=2), and open-ended responses. Data were analyzed using descriptive statistics, chi square, and content analysis. Five of 94 respondents changed majors and 39/93 reported study abroad influenced their career choice. Content analysis revealed participation influenced: n=14 to pursue a sustainability-focused career, n=8 to work in “a helping-profession”, n=6 to pursue ecotourism, and n=4 to study environmental law. Program participation seems to be influential for some in future career choice, but not major change. ","PeriodicalId":278243,"journal":{"name":"UF Journal of Undergraduate Research","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115142237","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-11-04DOI: 10.32473/ufjur.v22i0.121740
Lauren Lester, Elliott W. Dirr, K. Otto
Neuromodulation can be used to control organ function through exogenous augmentation of neural activity via targeted delivery of an electrical stimulus. Recently, neuromodulation has been a topic of investigation to treat many illnesses and conditions including Parkinson’s disease, epilepsy, obesity, chronic pain, type 1 diabetes, and hypertension. During neuromodulatory treatments, it is important to measure both the physiological response of the target system as well as any off-target systems that may be engaged from the delivered stimulus. Stimulation of the vagus nerve, a common target of neuromodulatory therapies, causes a vasovagal response which results in decreased cardiac rate and arteriolar dilatation. It is possible to measure these physiological parameters in anesthetized rats, but it is a challenge in conscious, moving rats because of motion artifact introduced to the sensors. By creating a noninvasive, stabilized pulse oximeter that measures the blood oxygenation waveform, one can analyze the heart rate in awake behaving animals. This study reports the design of a heart rate monitor used to monitor effects of heart rate variability during neuromodulation experiments. Design of this device included testing different sensors, methods of attaching to the rodent, microcontrollers, and wireless communication modules.
{"title":"Design of Pulse Oximeter Solution for Conscious Rodents","authors":"Lauren Lester, Elliott W. Dirr, K. Otto","doi":"10.32473/ufjur.v22i0.121740","DOIUrl":"https://doi.org/10.32473/ufjur.v22i0.121740","url":null,"abstract":"Neuromodulation can be used to control organ function through exogenous augmentation of neural activity via targeted delivery of an electrical stimulus. Recently, neuromodulation has been a topic of investigation to treat many illnesses and conditions including Parkinson’s disease, epilepsy, obesity, chronic pain, type 1 diabetes, and hypertension. During neuromodulatory treatments, it is important to measure both the physiological response of the target system as well as any off-target systems that may be engaged from the delivered stimulus. Stimulation of the vagus nerve, a common target of neuromodulatory therapies, causes a vasovagal response which results in decreased cardiac rate and arteriolar dilatation. It is possible to measure these physiological parameters in anesthetized rats, but it is a challenge in conscious, moving rats because of motion artifact introduced to the sensors. By creating a noninvasive, stabilized pulse oximeter that measures the blood oxygenation waveform, one can analyze the heart rate in awake behaving animals. This study reports the design of a heart rate monitor used to monitor effects of heart rate variability during neuromodulation experiments. Design of this device included testing different sensors, methods of attaching to the rodent, microcontrollers, and wireless communication modules.","PeriodicalId":278243,"journal":{"name":"UF Journal of Undergraduate Research","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127446022","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-11-04DOI: 10.32473/ufjur.v22i0.121766
Alyssa Faye Clare, Sara A Cornett, Kathryn M Trainor, J. Splett
Approximately 80% of children with social, emotional, and behavioral challenges are not adequately identified, leading to a large gap in unmet mental health needs. The purpose of the MTSS-MH project is to identify the efficiency and acceptability of universal mental health screening in schools using screening to systematically identify all students’ behavioral and mental health needs. The Teacher Perceptions of Screening and Mental Health Practices Survey (TPSMHPS) was administered within the MTSS-MH project to assess each school’s organizational climate and teachers’ perceptions of how acceptable universal screening and their school’s utilization of it was. Data analyses were run in this validity study to measure the survey’s preliminary psychometric properties. The internal reliability of the survey was indicated moderate to high reliability (Cronbach’s alpha = 0.787). One-way ANOVAs were run to assess the survey’s ability to detect differences between schools on teachers’ mean responses about screening acceptability, intervention acceptability, and implementation of screening resources. Results indicate that the TPSMHPS survey is a valid measure of teachers’ perceptions of mental health screening, as it is shown to to have high internal consistency, however between school differences were not detected. Future studies should consider other statistical analyses to examine the survey’s sensitivity to between school differences to ensure the survey is a good measure of teacher perceptions.
{"title":"Teacher Perceptions of Screening and Mental Health Practices Survey: A Validation Study","authors":"Alyssa Faye Clare, Sara A Cornett, Kathryn M Trainor, J. Splett","doi":"10.32473/ufjur.v22i0.121766","DOIUrl":"https://doi.org/10.32473/ufjur.v22i0.121766","url":null,"abstract":"Approximately 80% of children with social, emotional, and behavioral challenges are not adequately identified, leading to a large gap in unmet mental health needs. The purpose of the MTSS-MH project is to identify the efficiency and acceptability of universal mental health screening in schools using screening to systematically identify all students’ behavioral and mental health needs. The Teacher Perceptions of Screening and Mental Health Practices Survey (TPSMHPS) was administered within the MTSS-MH project to assess each school’s organizational climate and teachers’ perceptions of how acceptable universal screening and their school’s utilization of it was. Data analyses were run in this validity study to measure the survey’s preliminary psychometric properties. The internal reliability of the survey was indicated moderate to high reliability (Cronbach’s alpha = 0.787). One-way ANOVAs were run to assess the survey’s ability to detect differences between schools on teachers’ mean responses about screening acceptability, intervention acceptability, and implementation of screening resources. Results indicate that the TPSMHPS survey is a valid measure of teachers’ perceptions of mental health screening, as it is shown to to have high internal consistency, however between school differences were not detected. Future studies should consider other statistical analyses to examine the survey’s sensitivity to between school differences to ensure the survey is a good measure of teacher perceptions.","PeriodicalId":278243,"journal":{"name":"UF Journal of Undergraduate Research","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114256275","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-11-03DOI: 10.32473/ufjur.v22i0.121832
Chadwick Auriol Gaspard
Hip Hop is a cultural phenomenon that is constantly evolving and has made a worldwide impact in a short time. While it continues to change Hip Hop at its core remains the same. Victor Quijada artistic director of the Rubberband Dance company posed the question of “What more could Hip Hop be”. With those words in mind the focus of my research is to examine the movement and concepts/ideologies of the breakdancing subculture of Hip Hop; to create a fusion with contemporary dance. As such a brand-new system of movement with its own concepts and life could be created. The dance world is continuously shifting, and different skill sets, as well as ideologies, have been valued at different times and places. This exploration will challenge the mainstream ideals of what is currently considered “technique” and “foundation”
{"title":"Intersections","authors":"Chadwick Auriol Gaspard","doi":"10.32473/ufjur.v22i0.121832","DOIUrl":"https://doi.org/10.32473/ufjur.v22i0.121832","url":null,"abstract":"Hip Hop is a cultural phenomenon that is constantly evolving and has made a worldwide impact in a short time. While it continues to change Hip Hop at its core remains the same. Victor Quijada artistic director of the Rubberband Dance company posed the question of “What more could Hip Hop be”. With those words in mind the focus of my research is to examine the movement and concepts/ideologies of the breakdancing subculture of Hip Hop; to create a fusion with contemporary dance. As such a brand-new system of movement with its own concepts and life could be created. The dance world is continuously shifting, and different skill sets, as well as ideologies, have been valued at different times and places. This exploration will challenge the mainstream ideals of what is currently considered “technique” and “foundation”","PeriodicalId":278243,"journal":{"name":"UF Journal of Undergraduate Research","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124028152","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-11-03DOI: 10.32473/ufjur.v22i0.121841
H. Fechtel
Oral and Pharyngeal Cancer (OPC) is a deadly cancer with complex treatment plans and outcomes. In practice, surgery followed by radiation or chemotherapy is considered the “optimal treatment” associated with better OPC survival. However, not all OPC patients receive the optimal treatment. Prior research has documented that survival varies by smoking status and ethno-racial groups, but little is known about the relationship between a patient’s smoking status, ethnicity, and the choices they make about cancer treatment post diagnosis. To shed light on this under-studied issue, data from the Florida Cancer Data System were analyzed. A logit model was built with the response variable treatment pattern arranged into three levels: surgery only (reference), surgery followed by radiation or chemotherapy, and other treatment types. The predictors included smoking status, race-ethnicity, smoking by race-ethnicity interaction, health insurance, age at diagnosis, gender, and marital status. Overall, the odds of receiving optimal treatment for Non-Hispanic Whites and Non-Hispanic Blacks are 29%-34% (p<0.001) greater than the odds of optimal treatment for Hispanics. One significant smoking by race-ethnicity interaction was found between Non-Hispanic Blacks and current smoking status, making Non-Hispanic Blacks who currently smoke less likely to receive optimal treatment than those who do not smoke.
{"title":"Disparities in Optimal Treatment of Oral and Pharyngeal Cancer by Ethnicity and Smoking Status","authors":"H. Fechtel","doi":"10.32473/ufjur.v22i0.121841","DOIUrl":"https://doi.org/10.32473/ufjur.v22i0.121841","url":null,"abstract":"Oral and Pharyngeal Cancer (OPC) is a deadly cancer with complex treatment plans and outcomes. In practice, surgery followed by radiation or chemotherapy is considered the “optimal treatment” associated with better OPC survival. However, not all OPC patients receive the optimal treatment. Prior research has documented that survival varies by smoking status and ethno-racial groups, but little is known about the relationship between a patient’s smoking status, ethnicity, and the choices they make about cancer treatment post diagnosis. To shed light on this under-studied issue, data from the Florida Cancer Data System were analyzed. A logit model was built with the response variable treatment pattern arranged into three levels: surgery only (reference), surgery followed by radiation or chemotherapy, and other treatment types. The predictors included smoking status, race-ethnicity, smoking by race-ethnicity interaction, health insurance, age at diagnosis, gender, and marital status. Overall, the odds of receiving optimal treatment for Non-Hispanic Whites and Non-Hispanic Blacks are 29%-34% (p<0.001) greater than the odds of optimal treatment for Hispanics. One significant smoking by race-ethnicity interaction was found between Non-Hispanic Blacks and current smoking status, making Non-Hispanic Blacks who currently smoke less likely to receive optimal treatment than those who do not smoke.","PeriodicalId":278243,"journal":{"name":"UF Journal of Undergraduate Research","volume":"273-276 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130779165","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-11-03DOI: 10.32473/ufjur.v22i0.121835
Carolina Leah Arango
Over time artists have grappled with the experiences of the soul, particularly the human struggle to be virtuous. In this research project, choreographic tools are used to examine expressionistic links between the movement of Auguste Rodin’s sculpture The Gates of Hell and the narrative of Dante Alighieri’s Dante’s Inferno. These works were intended to persuade men to be righteous instead of committing sin. Rodin’s attention to human anatomy centers the importance of the body’s organic creation of movement in this struggle. Attention to the physique and emotion of the human body in motion has enabled Rodin’s work to transcend “generations and nationalities with the utmost ease”. The choreographic research aims to connect the links between emotion, expressions, and narrative of the souls to today. In contrast to sin simply being a conscious individual choice, an individual could be influenced to engage in “unethical behavior” by a group. Using dancers’ interpretation of ‘moral injustices’ as a guide for motifs, the choreography entitled “Shame on Me… or Shame on You?” will be a group work embodying the struggle of humanity to be good in real time.
{"title":"\"Shame on me... or Shame on You\": The Connection Between Arts and Decision-making","authors":"Carolina Leah Arango","doi":"10.32473/ufjur.v22i0.121835","DOIUrl":"https://doi.org/10.32473/ufjur.v22i0.121835","url":null,"abstract":"Over time artists have grappled with the experiences of the soul, particularly the human struggle to be virtuous. In this research project, choreographic tools are used to examine expressionistic links between the movement of Auguste Rodin’s sculpture The Gates of Hell and the narrative of Dante Alighieri’s Dante’s Inferno. These works were intended to persuade men to be righteous instead of committing sin. Rodin’s attention to human anatomy centers the importance of the body’s organic creation of movement in this struggle. Attention to the physique and emotion of the human body in motion has enabled Rodin’s work to transcend “generations and nationalities with the utmost ease”. The choreographic research aims to connect the links between emotion, expressions, and narrative of the souls to today. In contrast to sin simply being a conscious individual choice, an individual could be influenced to engage in “unethical behavior” by a group. Using dancers’ interpretation of ‘moral injustices’ as a guide for motifs, the choreography entitled “Shame on Me… or Shame on You?” will be a group work embodying the struggle of humanity to be good in real time.","PeriodicalId":278243,"journal":{"name":"UF Journal of Undergraduate Research","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125031431","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-11-03DOI: 10.32473/ufjur.v22i0.121829
Carolyn Muldowney, Vandana Baweja
The postwar transition to suburbia inaugurated a trend in which most American builders opted to clear the land and build standardized houses without any regard for the site conditions and local climate. Elizabeth Gordon (1906–2000) was the editor of House Beautiful a popular design magazine. She launched the Climate Control Project (1949–1953) to offer the homebuilder guidance on constructing houses suited for the local climate using design principles of orientation, sun control, site planning, and ventilation. Gordon was a strong critic of the International Style that developed in Europe in the interwar period and came to America after the war. This paper will examine the techniques prescribed by the Climate Control Project and draw conclusions about the ideal postwar house promoted by the magazine. Using the Climate Control project, House Beautiful advanced strategies for physiological comfort and efficient utilization of space as central objectives for its readers. By analyzing the articles published throughout the project's duration, this study concludes that the Climate Control Project promoted the idea of a regional American home as the ideal postwar home – as an alternative to the prefabricated mass-produced suburban homes during this time period and the International Style.
{"title":"House Beautiful, Climate Control Project 1949-1953","authors":"Carolyn Muldowney, Vandana Baweja","doi":"10.32473/ufjur.v22i0.121829","DOIUrl":"https://doi.org/10.32473/ufjur.v22i0.121829","url":null,"abstract":"The postwar transition to suburbia inaugurated a trend in which most American builders opted to clear the land and build standardized houses without any regard for the site conditions and local climate. Elizabeth Gordon (1906–2000) was the editor of House Beautiful a popular design magazine. She launched the Climate Control Project (1949–1953) to offer the homebuilder guidance on constructing houses suited for the local climate using design principles of orientation, sun control, site planning, and ventilation. Gordon was a strong critic of the International Style that developed in Europe in the interwar period and came to America after the war. This paper will examine the techniques prescribed by the Climate Control Project and draw conclusions about the ideal postwar house promoted by the magazine. Using the Climate Control project, House Beautiful advanced strategies for physiological comfort and efficient utilization of space as central objectives for its readers. By analyzing the articles published throughout the project's duration, this study concludes that the Climate Control Project promoted the idea of a regional American home as the ideal postwar home – as an alternative to the prefabricated mass-produced suburban homes during this time period and the International Style.","PeriodicalId":278243,"journal":{"name":"UF Journal of Undergraduate Research","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133861567","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-11-03DOI: 10.32473/ufjur.v22i0.121907
K. Shah, E. Fischman, Maximilian Mathers, Stephanie Miller, Ashley Sepulveres, Yang Zhao
Modern business has recently trended towards a focus on corporate social responsibility (CSR) due to a growing sense that companies should uphold ethical standards not only for their direct stakeholders, but also for society at large. This study therefore investigated whether a relationship between companies’ CSR/philanthropic efforts and financial growth may exist. The six public companies investigated (Alphabet, Apple, Bank of America, JP Morgan Chase, Kroger, and Walmart) were the six highest-ranked on the 2019 Fortune 500 list that also appeared on the 2018 Fortune Change the World list. One notable philanthropic effort for each company was selected. Financial statements from the year before, during, and after the philanthropic efforts began were examined and sales revenue was recorded. A positive correlation was found between Apple’s and Kroger’s financial success and philanthropic efforts but not for the other four companies. This may indicate that CSR is a strong factor in how customers perceive those two companies. The weak correlation found between these two variables for the four remaining firms may demonstrate that the relationship between CSR and consumer choice is weak or nonexistent. The results of this study are intended to prepare future research involving the potential relationship between corporate social responsibility and sales revenue, by providing a framework for related statistics and information among top philanthropic public corporations.
{"title":"Investigating a Potential Relationship between Corporate Social Responsibility and Financial Growth","authors":"K. Shah, E. Fischman, Maximilian Mathers, Stephanie Miller, Ashley Sepulveres, Yang Zhao","doi":"10.32473/ufjur.v22i0.121907","DOIUrl":"https://doi.org/10.32473/ufjur.v22i0.121907","url":null,"abstract":"Modern business has recently trended towards a focus on corporate social responsibility (CSR) due to a growing sense that companies should uphold ethical standards not only for their direct stakeholders, but also for society at large. This study therefore investigated whether a relationship between companies’ CSR/philanthropic efforts and financial growth may exist. The six public companies investigated (Alphabet, Apple, Bank of America, JP Morgan Chase, Kroger, and Walmart) were the six highest-ranked on the 2019 Fortune 500 list that also appeared on the 2018 Fortune Change the World list. One notable philanthropic effort for each company was selected. Financial statements from the year before, during, and after the philanthropic efforts began were examined and sales revenue was recorded. A positive correlation was found between Apple’s and Kroger’s financial success and philanthropic efforts but not for the other four companies. This may indicate that CSR is a strong factor in how customers perceive those two companies. The weak correlation found between these two variables for the four remaining firms may demonstrate that the relationship between CSR and consumer choice is weak or nonexistent. The results of this study are intended to prepare future research involving the potential relationship between corporate social responsibility and sales revenue, by providing a framework for related statistics and information among top philanthropic public corporations.","PeriodicalId":278243,"journal":{"name":"UF Journal of Undergraduate Research","volume":"170 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115456882","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-02-20DOI: 10.32473/ufjur.v21i2.109129
Yang Yue
The relationship between potato (Solanum tuberosumL.) tuber membrane permeability and storage conditions were examined. Tubers from four potato cultivars were stored for 1 year at 2 °C and4 °C, and tubers transferred from 4 °C to 2 °C for 48 hours. Electrolyte conductivity measurements taken from two discs of four potato cultivars with six biological replicates as well as different tissues types including the pith, cortex and parenchyma. The results showed that the longer the storage time and lower the temperature, the higher the electrolyte conductivity of the tissues. And different tissue types pith, cortex and parenchyma had different electrolyte conductivity susceptibility pattern under different storage conditions. Overall, the parenchyma has highest electrolyte leakage and following are pith, cortex has lowest among three different tissue types. However, cultivars that are resistant to Blackheart, surprisingly had higher electrolyte conductivity compared to the Blackheart-susceptible cultivars. Overall, the work demonstrates that storage conditions have a significant effect on membrane leakage but that this doesn’t appear to relate directly to susceptibility to Blackheart.
{"title":"The Relationship Between Post-harvest Storage Conditions and Membrane Leakage in the Context of Blackheart in Potato Tubers","authors":"Yang Yue","doi":"10.32473/ufjur.v21i2.109129","DOIUrl":"https://doi.org/10.32473/ufjur.v21i2.109129","url":null,"abstract":"The relationship between potato (Solanum tuberosumL.) tuber membrane permeability and storage conditions were examined. Tubers from four potato cultivars were stored for 1 year at 2 °C and4 °C, and tubers transferred from 4 °C to 2 °C for 48 hours. Electrolyte conductivity measurements taken from two discs of four potato cultivars with six biological replicates as well as different tissues types including the pith, cortex and parenchyma. The results showed that the longer the storage time and lower the temperature, the higher the electrolyte conductivity of the tissues. And different tissue types pith, cortex and parenchyma had different electrolyte conductivity susceptibility pattern under different storage conditions. Overall, the parenchyma has highest electrolyte leakage and following are pith, cortex has lowest among three different tissue types. However, cultivars that are resistant to Blackheart, surprisingly had higher electrolyte conductivity compared to the Blackheart-susceptible cultivars. Overall, the work demonstrates that storage conditions have a significant effect on membrane leakage but that this doesn’t appear to relate directly to susceptibility to Blackheart. ","PeriodicalId":278243,"journal":{"name":"UF Journal of Undergraduate Research","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115356381","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-02-19DOI: 10.32473/ufjur.v21i2.108563
A. S. Saini
Premature babies are often put on respirators due to their lack of lung development and functionality. However, there is not much data that specifically pinpoints when it is safe to take a child off a respirator. Therefore, the main focus question is: how does the pulmonary vasculature develop as the child grows and can we determine the exact time-point to take him/her off a respirator. In this study, Chest CT scans were retrospectively gathered from pediatric patients at different follow-up times from the UF Shands Pulmonary Care Pediatric Center from 2005-2012. In-house software built upon the NIH ImageJ platform was used to count blood vessels as a function of size in each patient’s lungs. Nine datasets were analyzed from subjects 1 week to 22 years of age. It was observed that the number of vessels increased as a patient aged however the data points were spread greatly, preventing our being able to make additional inferences. Limitations of this initial work include that often patients were scanned only in instances of lung infections which hinders the assessment of lung vasculature; the number of repeated scans per patient was low; and the image slice thickness and in-plane pixel resolution varied across scans, which affects vessels count. Future extensions of this work include selecting a larger cohort of subjects with multiple follow-ups and similar imaging parameters, along with an age-matched control group.
{"title":"Measuring Lung Vessel Tree Growth During Development in Pediatric Patients","authors":"A. S. Saini","doi":"10.32473/ufjur.v21i2.108563","DOIUrl":"https://doi.org/10.32473/ufjur.v21i2.108563","url":null,"abstract":"Premature babies are often put on respirators due to their lack of lung development and functionality. However, there is not much data that specifically pinpoints when it is safe to take a child off a respirator. Therefore, the main focus question is: how does the pulmonary vasculature develop as the child grows and can we determine the exact time-point to take him/her off a respirator. In this study, Chest CT scans were retrospectively gathered from pediatric patients at different follow-up times from the UF Shands Pulmonary Care Pediatric Center from 2005-2012. In-house software built upon the NIH ImageJ platform was used to count blood vessels as a function of size in each patient’s lungs. Nine datasets were analyzed from subjects 1 week to 22 years of age. It was observed that the number of vessels increased as a patient aged however the data points were spread greatly, preventing our being able to make additional inferences. Limitations of this initial work include that often patients were scanned only in instances of lung infections which hinders the assessment of lung vasculature; the number of repeated scans per patient was low; and the image slice thickness and in-plane pixel resolution varied across scans, which affects vessels count. Future extensions of this work include selecting a larger cohort of subjects with multiple follow-ups and similar imaging parameters, along with an age-matched control group.","PeriodicalId":278243,"journal":{"name":"UF Journal of Undergraduate Research","volume":"167 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115653959","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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