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Description

This study answers the question, “In Adult Hispanic BMI ≥ 30 (P), how does development of a weight loss program that utilizes Motivational Interviewing (I) compared to counseling and educational materials only (C) affect weight loss over the period of three months (T).” There are limited published systematic reviews and

This study answers the question, “In Adult Hispanic BMI ≥ 30 (P), how does development of a weight loss program that utilizes Motivational Interviewing (I) compared to counseling and educational materials only (C) affect weight loss over the period of three months (T).” There are limited published systematic reviews and randomized control trials to evaluate the effectiveness of Motivational Interviewing (MI), in conjunction with diet and exercise to promote weight loss. Participants (n = 5) were Latino patients of a local community health care center who were overweight and medically at risk due to unhealthy lifestyles that were determined through a screening test.

The 4-week clinical pathway program used motivational interviewing in one-on-one sessions every other week, and implemented the “Your Heart, Your Life” curriculum the other weeks. One expected outcome included lower anthropometric measurement numbers of participants’ WL, BMI, WC, and BP. Another expected outcome was an increase in physical activity. Participants were also expected to earn a higher score on a post-test about nutrition and healthy living. A paired t-test and power analyses were used to assess its effectiveness.

Results indicated significant decrease in weight loss (t [5] = 3.68, p = .0211, Cohen’s dz=1.647). For heart healthy habits, there were significant increases all three categories: weight management (t [5] = - 3.36, p = .0211), cholesterol and fat (t [5] = - 3.138, p =.035, salt and sodium (t [5] = - 4.899, p = .008). In addition, there was an increase in knowledge (t [5] = - 4.000, p = .016). Every participant showed small gains. Future implications should include more participants, including males, a control group, innovative activities that help to motivate a community of learners and more flexibility in allotted time for interventions.

ContributorsLedesma, Nadia (Author) / Thrall, Charlotte (Thesis advisor)
Created2016-05-06
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Description
Declaration of Conflicts: This project has no conflicts of interest to declare.

Context: This project was completed at a federally qualified primary healthcare clinic in Phoenix, Arizona that served patients of all age groups, but primarily cared for the Hispanic population providing primary care, preventative services, family planning, two lab

Declaration of Conflicts: This project has no conflicts of interest to declare.

Context: This project was completed at a federally qualified primary healthcare clinic in Phoenix, Arizona that served patients of all age groups, but primarily cared for the Hispanic population providing primary care, preventative services, family planning, two lab technicians, one promoter, two medical assistant supervisors, five front desk staff, one chief administrative officer, one chief financial officer, two medical directoers who were also providers at the clinic.

Problem and Analysis Assessment: During my clinical rotations, I saw the burden a missed patient appointment had not only on the patients themselves, but also on the clinic, providers, and the staff. It caused delay in treatment for patients, and it did not allow other patients that wanted to be seen to be seen. It also increased unnecessary costs and wasted provider time. Thereafter, I met with some of the leadership team and one of the medical directors to determine a solution to reduce the number of missed appointments that were occurring. An educational session was kept to discuss the findings of this problem to the providers and the staff and when surveys were handed out to the patients, providers, and staff to assess their satisfaction with the old scheduling system versus the new scheduling system, they were also provided with a cover letter discussing the project.

Intervention: In order for improvements in care to occur, a system process change including the way patients are scheduled must occur. In this case, an open-access scheduling system (OAS) was implemented. OAS allows a patient to schedule an appointment on the 'same-day' or the 'next-day' to be seen. One provider at each of the clinics, each day of the week was available for 'same-day' appointments from 1300-1600. The providers were still available for scheduled appointments using the previous scheduling method. Walk-ins were still accepted, and were scheduled based on patient provider preference; however, if an appointment was not available for their preferred provider, they were typically seen with the provider that was the 'same-day' provider for that day.

Strategy for change: Since patients were only allowed to schedule appointments one month in advance, only one month was needed to implement this process change. A recommendation for the future would be to clearly identify the patient encounter type, and label it as a same-day appointment, as this would be helpful when gathering and extracting data for this type of patient group specifically.

Measurement of Improvement: Over a three-month period, a data collection plan was used to determine the number of Mas over a three-month period before and after implementation of this change. Satisfaction scores were measured using likert scales for patients, provider, and staff, and a dichotomous scale was used to determine the likelihood of emergency room or urgent care use. A comparison was done to measure revenue during the same time frame. During the three months, a clinically significant decrease in MAs was seen (<0.52%), with an increase in revenue by 41%. Additionally, a statistically significant increase in patient, provider and staff satisfaction was also noted when compared to the old scheduling system, as >68% of all patients, providers and staff reported feeling either very satisfied or extremely satisfied with the new scheduling system. Additionally, patients also reported that they were less likely to visit an emergency room(88%) or urgent care (90%) since they were able to be seen the same-day or the next-day by a provider.

Effects of changes: An incidental finding occurred during this study - where 877 more patients were seen in the three months during the implementation of this project, compared to the three months prior; which likely resulted in a 41% increase in revenue. Additionally this project, allowed patients that wanted to be seen on the same day, to be seen, and it decreased unnecessary costs associated with emergency room or urgent care visits. Some of the limitations involved included the current political environment, appointment slots that were previously 15 minutes in length (in 2016), increased to 20 minutes in length (in 2017), a language barrier was noted for the patient surveys since English was not the first language for many of the patients who completed the survey (although documents were translated), and the surveys used were not reliable instrument given that a reliable instrument in previous studies could not be found.

Lessons learnt: In order to have accuracy of the survey results, it is best for the author of the study to hand out and provide scripture for the survey so that complete data is received from the surveyors.

Messages for others: Begin by making a small process change where only one provider allows for the open-access scheduling so that the entire office is not affected by it, and if results begin to look promising then it can be expanded. Additionally, correct labeling of patients as 'same-day' is also important so that additional data can be gathered when needed regarding the 'same-day' patients.

Patient/Family/Guardian Involvement: Patients who benefited from the new scheduling system (open-access scheduling) were asked to fill out a survey that asked them to disclose some demographic data and asked them to determine their satisfaction with the new vs old scheduling system and their likelihood of visiting an emergency room or urgent care.

Ethics Approval: Arizona State University Institutional Review Board (IRB) Received: September 2017
ContributorsPatel, Dimple (Author) / Thrall, Charlotte (Thesis advisor) / Glover, Johannah-Uriri (Thesis advisor)
Created2018-05-02
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Description

Over the last two decades, opioid prescription and prevalence has increased to account for over 33,000 deaths per year (Soelberg, Brown, Du Vivier, Meyer & Ramachandran, 2017). This is not only due to overdose, but misuse, abuse, and addiction. The abrupt increase in prescriptions, pills dispensed, and opioid-related deaths have

Over the last two decades, opioid prescription and prevalence has increased to account for over 33,000 deaths per year (Soelberg, Brown, Du Vivier, Meyer & Ramachandran, 2017). This is not only due to overdose, but misuse, abuse, and addiction. The abrupt increase in prescriptions, pills dispensed, and opioid-related deaths have encouraged the involvement of multiple entities.

In 2016, the opioid crisis gained the attention of communities that released guidelines to regulate prescription of opioid pain management. Such entities include the Center for Disease Control and Prevention (CDC), National Institute on Drug Abuse, Agency for Healthcare Research and Quality (AHRQ), Arizona Department of Health Services (AZDHS), and Substance Abuse and Mental Health Services Administration (SAMHSA). Evidence shows that prescribing practices between providers vary. It also shows that providers lack knowledge of appropriate opioid prescribing and management. To address this problem, provider education on an opioid policy is the most effective way to uniform opioid prescribing.

ContributorsWagner, Jessica (Author) / Thrall, Charlotte (Thesis advisor)
Created2019-04-22
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Description
Purpose: The purpose of this evidence-based practice project was to improve participation by increasing registration on to a medical patient portal to an uninsured population. Medical patient portals have the potential to provide patients with timely, transparent access to health care information and engage them in their health care process

Purpose: The purpose of this evidence-based practice project was to improve participation by increasing registration on to a medical patient portal to an uninsured population. Medical patient portals have the potential to provide patients with timely, transparent access to health care information and engage them in their health care process and management. This may result in improved disease management outcomes.

Methods: This project was guided by a The Rosswurm and Larrabee Model for Change to Evidence- Based Practice and Pender’s health promotion framework. IRB Approved by ASU. The instruction was implemented at an urban clinic in downtown phoenix that serves uninsured and underserved individuals. Uninsured participants were recruited (n=50). A survey pre and post registration was conducted to assess knowledge and medical portal participation in addition a random pre and post chart review was performed.

Results: Descriptive statistics was used to describe sample and outcome variables. A chi-square test of independence was calculated comparing pre and post intervention significant change was found (χ2 (1) = .002, P<0.05.), a paired sample t test was calculated to compare knowledge pre and post registration instruction the mean pre-10.187(SD = 4.422), post mean was 16.958(SD=.856). A significant increase of knowledge was found (t (47) =-9.573, p (<.001).

Outcomes: In this population both patients and providers have seen significant benefits such as increased communication and patient participation, from the implementation of evidence based educational tools such as instruction with teach back, and the usage of brochures. Potential Implication for sustainability includes the lack of a designated individual that is bilingual to register patients, making patients aware of the existence of a medical patient portal, patient’s fear of sharing immigration status.
ContributorsAlvarado, Cecilia I. (Author) / Thrall, Charlotte (Thesis advisor)
Created2019-05-03
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Description

Aim: To reduce the fear of falling in an elderly population by teaching ‘Tai Chi for Falls Prevention’ classes twice a week for 12 weeks.

Background & Significance: Falls continue to be the leading cause of injury-related deaths of Arizonans who are 65 years or older - well above the national

Aim: To reduce the fear of falling in an elderly population by teaching ‘Tai Chi for Falls Prevention’ classes twice a week for 12 weeks.

Background & Significance: Falls continue to be the leading cause of injury-related deaths of Arizonans who are 65 years or older - well above the national average. It is predicted that by 2030, national medical spending for this population will total over $31 billion, yearly. Tai Chi is revered for being a beneficial form of simple, low-impact exercise, which the CDC endorses for its falls risk reduction benefits.

Methods: The intervention consisted of 60-minute classes occurring twice a week for 12 weeks. Participants were English-speaking, between 65-85 years old, and able to ambulate independently. Appropriate pre-screening tools were used before applicants consented. Their Fear of Falling (FoF) was measured using a fall risk perception tool at the beginning, middle, and the end of the project. This ordinal data was analyzed with Friedman ANOVA using SPSS 25

Outcomes/Results: After enrolling five total participants, only three completed the project. This severely limited data analysis of their FoF, resulting in a statistical significance (p = 0.68), deeming the intervention ineffective - Despite observable downwards trending FoF scores.

Conclusion: The acceptance of the null hypothesis is attributed to the low enrollment and high attrition rate. Also, the only data measured was quantifiable, subjective data. Future projects could add objective data to reinforce the benefits of Tai Chi. This might reinforce the validity of Tai Chi as a practical recommendation due to its cost-effective simple interventional design and effectiveness for prevention of accidental falls. Increased focus on improved recruitment & retainment strategies should be prioritized for similar projects in the future.

ContributorsSawicki, Graham C. (Author) / Thrall, Charlotte (Thesis advisor)
Created2019-04-15
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Description
We have fabricated a high mobility device, composed of a monolayer graphene flake sandwiched between two sheets of hexagonal boron nitride. Conductance fluctuations as functions of a back gate voltage and magnetic field were obtained to check for ergodicity. Non-linear dynamics concepts were used to study the nature of these

We have fabricated a high mobility device, composed of a monolayer graphene flake sandwiched between two sheets of hexagonal boron nitride. Conductance fluctuations as functions of a back gate voltage and magnetic field were obtained to check for ergodicity. Non-linear dynamics concepts were used to study the nature of these fluctuations. The distribution of eigenvalues was estimated from the conductance fluctuations with Gaussian kernels and it indicates that the carrier motion is chaotic at low temperatures. We argue that a two-phase dynamical fluid model best describes the transport in this system and can be used to explain the violation of the so-called ergodic hypothesis found in graphene.
Contributorsda Cunha, C. R. (Author) / Mineharu, M. (Author) / Matsunaga, M. (Author) / Matsumoto, N. (Author) / Chuang, C. (Author) / Ochiai, Y. (Author) / Kim, G.-H. (Author) / Watanabe, K. (Author) / Taniguchi, T. (Author) / Ferry, David (Author) / Aoki, N. (Author) / Ira A. Fulton Schools of Engineering (Contributor) / School of Electrical, Computer and Energy Engineering (Contributor)
Created2016-09-09
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Description

Inhibition by ammonium at concentrations above 1000 mgN/L is known to harm the methanogenesis phase of anaerobic digestion. We anaerobically digested swine waste and achieved steady state COD-removal efficiency of around 52% with no fatty-acid or H[subscript 2] accumulation. As the anaerobic microbial community adapted to the gradual increase of total

Inhibition by ammonium at concentrations above 1000 mgN/L is known to harm the methanogenesis phase of anaerobic digestion. We anaerobically digested swine waste and achieved steady state COD-removal efficiency of around 52% with no fatty-acid or H[subscript 2] accumulation. As the anaerobic microbial community adapted to the gradual increase of total ammonia-N (NH[subscript 3]-N) from 890 ± 295 to 2040 ± 30 mg/L, the Bacterial and Archaeal communities became less diverse. Phylotypes most closely related to hydrogenotrophic Methanoculleus (36.4%) and Methanobrevibacter (11.6%), along with acetoclastic Methanosaeta (29.3%), became the most abundant Archaeal sequences during acclimation. This was accompanied by a sharp increase in the relative abundances of phylotypes most closely related to acetogens and fatty-acid producers (Clostridium, Coprococcus, and Sphaerochaeta) and syntrophic fatty-acid Bacteria (Syntrophomonas, Clostridium, Clostridiaceae species, and Cloacamonaceae species) that have metabolic capabilities for butyrate and propionate fermentation, as well as for reverse acetogenesis. Our results provide evidence countering a prevailing theory that acetoclastic methanogens are selectively inhibited when the total ammonia-N concentration is greater than ~1000 mgN/L. Instead, acetoclastic and hydrogenotrophic methanogens coexisted in the presence of total ammonia-N of ~2000 mgN/L by establishing syntrophic relationships with fatty-acid fermenters, as well as homoacetogens able to carry out forward and reverse acetogenesis.

Created2016-08-11
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Description
Background
Grading schemes for breast cancer diagnosis are predominantly based on pathologists' qualitative assessment of altered nuclear structure from 2D brightfield microscopy images. However, cells are three-dimensional (3D) objects with features that are inherently 3D and thus poorly characterized in 2D. Our goal is to quantitatively characterize nuclear structure in 3D,

Background
Grading schemes for breast cancer diagnosis are predominantly based on pathologists' qualitative assessment of altered nuclear structure from 2D brightfield microscopy images. However, cells are three-dimensional (3D) objects with features that are inherently 3D and thus poorly characterized in 2D. Our goal is to quantitatively characterize nuclear structure in 3D, assess its variation with malignancy, and investigate whether such variation correlates with standard nuclear grading criteria.
Methodology
We applied micro-optical computed tomographic imaging and automated 3D nuclear morphometry to quantify and compare morphological variations between human cell lines derived from normal, benign fibrocystic or malignant breast epithelium. To reproduce the appearance and contrast in clinical cytopathology images, we stained cells with hematoxylin and eosin and obtained 3D images of 150 individual stained cells of each cell type at sub-micron, isotropic resolution. Applying volumetric image analyses, we computed 42 3D morphological and textural descriptors of cellular and nuclear structure.
Principal Findings
We observed four distinct nuclear shape categories, the predominant being a mushroom cap shape. Cell and nuclear volumes increased from normal to fibrocystic to metastatic type, but there was little difference in the volume ratio of nucleus to cytoplasm (N/C ratio) between the lines. Abnormal cell nuclei had more nucleoli, markedly higher density and clumpier chromatin organization compared to normal. Nuclei of non-tumorigenic, fibrocystic cells exhibited larger textural variations than metastatic cell nuclei. At p<0.0025 by ANOVA and Kruskal-Wallis tests, 90% of our computed descriptors statistically differentiated control from abnormal cell populations, but only 69% of these features statistically differentiated the fibrocystic from the metastatic cell populations.
Conclusions
Our results provide a new perspective on nuclear structure variations associated with malignancy and point to the value of automated quantitative 3D nuclear morphometry as an objective tool to enable development of sensitive and specific nuclear grade classification in breast cancer diagnosis.
Created2012-01-05
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Description
Recent studies indicate the presence of nano-scale titanium dioxide (TiO[subscript 2]) as an additive in human foodstuffs, but a practical protocol to isolate and separate nano-fractions from soluble foodstuffs as a source of material remains elusive. As such, we developed a method for separating the nano and submicron fractions found

Recent studies indicate the presence of nano-scale titanium dioxide (TiO[subscript 2]) as an additive in human foodstuffs, but a practical protocol to isolate and separate nano-fractions from soluble foodstuffs as a source of material remains elusive. As such, we developed a method for separating the nano and submicron fractions found in commercial-grade TiO[subscript 2] (E171) and E171 extracted from soluble foodstuffs and pharmaceutical products (e.g., chewing gum, pain reliever, and allergy medicine). Primary particle analysis of commercial-grade E171 indicated that 54% of particles were nano-sized (i.e., < 100 nm). Isolation and primary particle analysis of five consumer goods intended to be ingested revealed differences in the percent of nano-sized particles from 32%‒58%. Separation and enrichment of nano- and submicron-sized particles from commercial-grade E171 and E171 isolated from foodstuffs and pharmaceuticals was accomplished using rate-zonal centrifugation. Commercial-grade E171 was separated into nano- and submicron-enriched fractions consisting of a nano:submicron fraction of approximately 0.45:1 and 3.2:1, respectively. E171 extracted from gum had nano:submicron fractions of 1.4:1 and 0.19:1 for nano- and submicron-enriched, respectively. We show a difference in particle adhesion to the cell surface, which was found to be dependent on particle size and epithelial orientation. Finally, we provide evidence that E171 particles are not immediately cytotoxic to the Caco-2 human intestinal epithelium model. These data suggest that this separation method is appropriate for studies interested in isolating the nano-sized particle fraction taken directly from consumer products, in order to study separately the effects of nano and submicron particles.
Created2016-10-31
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Description
pH and fermentable substrates impose selective pressures on gut microbial communities and their metabolisms. We evaluated the relative contributions of pH, alkalinity, and substrate on microbial community structure, metabolism, and functional interactions using triplicate batch cultures started from fecal slurry and incubated with an initial pH of 6.0, 6.5, or

pH and fermentable substrates impose selective pressures on gut microbial communities and their metabolisms. We evaluated the relative contributions of pH, alkalinity, and substrate on microbial community structure, metabolism, and functional interactions using triplicate batch cultures started from fecal slurry and incubated with an initial pH of 6.0, 6.5, or 6.9 and 10 mM glucose, fructose, or cellobiose as the carbon substrate. We analyzed 16S rRNA gene sequences and fermentation products. Microbial diversity was driven by both pH and substrate type. Due to insufficient alkalinity, a drop in pH from 6.0 to ~4.5 clustered pH 6.0 cultures together and distant from pH 6.5 and 6.9 cultures, which experienced only small pH drops. Cellobiose yielded more acidity than alkalinity due to the amount of fermentable carbon, which moved cellobiose pH 6.5 cultures away from other pH 6.5 cultures. The impact of pH on microbial community structure was reflected by fermentative metabolism. Lactate accumulation occurred in pH 6.0 cultures, whereas propionate and acetate accumulations were observed in pH 6.5 and 6.9 cultures and independently from the type of substrate provided. Finally, pH had an impact on the interactions between lactate-producing and -consuming communities. Lactate-producing Streptococcus dominated pH 6.0 cultures, and acetate- and propionate-producing Veillonella, Bacteroides, and Escherichia dominated the cultures started at pH 6.5 and 6.9. Acid inhibition on lactate-consuming species led to lactate accumulation. Our results provide insights into pH-derived changes in fermenting microbiota and metabolisms in the human gut.
Created2017-05-03