Digital Commons Network^™

Understanding Processing And Mechanics Of Extrusion-Based Additive Manufacturing For Multi-Material Parts, Jafar N/A Ghorbani

Mechanical Engineering ETDs

Despite the design freedom that additive manufacturing (AM) processes provide, there are still challenges in using some AM processes for end-use products. Fused filament fabrication (FFF), also known as material extrusion, is one of the AM technologies that has been used mainly for prototyping due to the low cost of machines, raw material, and ease of operation. Another advantage of FFF is its ease of integration with other additive or subtractive technologies. However, some disadvantages such as relatively poor and anisotropic mechanical properties have hindered FFF for end-use engineering components. The first chapter of this dissertation is a brief review …

A Novel Imaging Methodology To Estimate Advective Losses From A Concentrating Solar Power Particle Receiver, Jesus Daniel Ortega

Mechanical Engineering ETDs

Falling particle receivers (FPRs) such as the one at Sandia National Labs, represent the state-of-the-art Concentrating Solar Power (CSP) technology for energy harvesting. The FPR operates by creating a gravity-driven particle curtain in a receiver that is irradiated by concentrated sunlight from a field of concentrators. The particles are used directly as the heat transfer and storage media for the concentrated energy absorbed. However, during operation, particles can egress through the open aperture of the receiver cavity, resulting in particle-inventory and heat losses from the system. The particle plumes egressing from the cavity present a unique challenge to metrology due …

Trauma Center Development Improved New Mexico Trauma System By Decreasing Inappropriate Air Medical Transport And Increasing System Revenue, Nikki L. May

Doctor of Nursing Practice Scholarly Projects

Before 2016 in southern New Mexico, the closest trauma center for patients was El Paso, Texas. Las Cruces, New Mexico, in Doña Ana County began developing its first trauma center in 2016 and became designated in 2017. The development of this trauma center changed trauma triage destination protocols for trauma patients. The improved collaboration and teamwork with prehospital personnel, surrounding hospitals, and existing trauma centers led to the development of trauma triage and transport guidelines. These protocols categorized trauma patients and constituted a guide for emergency personnel. Developing a trauma center in Doña Ana County improved the New Mexico Trauma …

20220426_2021 Annual Report For The Justice, Equity, And Inclusion Committee, Varina Kosovich

HSLIC Blog Post

No abstract provided.

Dc Microgrid Fault Detection Using Multiresolution Analysis Of Traveling Waves, Rudy Montoya

Mechanical Engineering ETDs

Fast detection and isolation of faults in a DC microgrid is of particular importance. Fast tripping protection (i) increases the lifetime of power electronics (PE) switches by avoiding high fault current magnitudes and (ii) enhances the controllability of PE converters. This thesis proposes a traveling wave (TW) based scheme for fast tripping protection of DC microgrids. The proposed scheme utilizes a discrete wavelet transform (DWT) to calculate the high-frequency components of DC fault currents. Multiresolution analysis (MRA) using DWT is utilized to detect TW components for different frequency ranges. The Parseval energy calculated from the MRA coefficients are then used …

Analyzing Student Credits, Don R. Hush, Elias S. Lopez, Wisam Al-Doroubi, Tushar Ojha, Brianne Santos, Kevin Warne

Electrical & Computer Engineering Technical Reports

This report describes methods for decomposing student credits into three categories: applied, unusable, and excess where applied credits count towards the student's degree requirements, unusable credits do not count towards any degree requirement, and excess credits exceed one or more degree requirement specifications. These methods enable multiple types of analysis including student progress assessment, student planning (i.e. helping the student determine the best path forward), credit efficiency analysis (i.e. quantifying the number of applied versus unusable and excess credits), transfer credit analysis (i.e. determining the utility and efficiency of transfer credits), and requirement analysis (i.e. determining the types of requirements …

20220425_Hslic Employee Recognition, David Lucero

HSLIC Blog Post

No abstract provided.

Design And Characterization Of Frequency Tripling Mirrors, Amir Khabbazi Oskouei

Optical Science and Engineering ETDs

Aperiodic stacks of dielectric low- and high-index films can be designed to enhance third-harmonic generation (THG) in reflection of near infrared laser pulses using computer optimization. Numerical and analytical results suggest that the TH energy increases rapidly with increasing number of films and the ratio of the high and low index.

Our optical matrix based THG model that takes into account the full pulse bandwidth predicts conversion efficiencies of about 7% for transform-limited Gaussian pulse bandwidths of 16 nm for mirrors with 45 layers, which exceed those expected from periodic designs. Stability against film thickness fluctuations expected from the deposition …

Unm Hslic Organizational Chart 2022, Sally Bowler-Hill

HSLIC Organizational Charts

No abstract provided.

20220422_Celebrate Earth Day - Conserve Clean Water, Gale G. Hannigan Phd

HSLIC Blog Post

No abstract provided.

Civil Procedure Update 2022 (Handout And Slide Deck), Verónica C. Gonzales, Julio C. Romero

Faculty Scholarship

This presentation aims to 1) review recent amendments to the state and federal rules of civil procedure; 2) help you understand the impact of recent federal and state published opinions interpreting and applying the rules of civil procedure; and 3) assess your understanding of the updates.

A Rare Presentation Of Pediatric Alk-Positive Histiocytosis As Palatal Mass With Response To Alk Inhibitor Crizotinib Treatment: Case Report, Ella Dolan, Katie Harmoney

2022 Pediatric Research Forum Session

ALK-positive histiocytosis is a rare histiocytic proliferative disorder most often seen in infants and young children. 1,2 We describe a patient with a novel presentation of this condition characterized by a palatal mass that was responsive to treatment with first-generation ALK inhibitor, crizotinib. The unique immunophenotypic and molecular characteristics of ALK-positive histiocytosis provide an opportunity for targeted therapy with ALK inhibitors and additional research should be focused on further characterization of this condition and potential treatment options. Additionally, we support the suggestion that ALK-positive histiocytosis should be considered a distinct entity from other histiocytic proliferative disorders 1,2, such as Langerhans …

Improving Sepsis Outcomes In Hospitalized Children Within A Safety Net Hospital: A Quality Improvement Project, Anna Duran, Anjali Subbaswamy, Rachel Tuuri, Sandra Beauman, Elizabeth Yakes Jimenez

2022 Pediatric Research Forum Session

Purpose: Delayed diagnosis of pediatric sepsis increases morbidity, mortality and healthcare costs. Specific interventions, such as a sepsis screening tool, sepsis huddles, and sepsis management pathway and continuous quality improvement (QI)-based reviews have been shown to decrease time to treatment and mortality. When this project was designed, UNMH did not have any of these interventions in place. This QI project aims to: 1) implement a sepsis screening huddle within 20 minutes when pediatric patients meet a clinical trigger based on vital signs; 2) ensure patients who screen positive for sepsis receive antibiotics within 3 hours; and 3) ensure that patients …

How Would Jesus Watch This? An Investigation Into Dance Restrictions In American Protestantism, Rebecca Lynn Huppenthal

Theatre & Dance ETDs

In the United States there has been many disagreements concerning the place of dance within Protestant Christianity. Some denominations have banned dance entirely while other utilize dance as an essential element of worship. At the center of this argument is the understanding, treatment, and use of the physical body. Beginning in the sixteenth century through current times, I analyze specific Protestant denominations including the Puritans, Evangelical Fundamentalists, Southern Baptists, the Shakers, certain African American denominations, and Pentecostals. Additionally, I examine notable liturgical modern dancers, as well as my own choreographic work, a dance film titled Rebirth. This research displays …

Teenager With A Rare Congenital Anemia, Shirley M. Abraham

2022 Pediatric Research Forum Session

Aim: To report a case of a teenager with congenital dyserythropoietic anemia (CDA). This is a 16y/o female who been noted to have mild persistent jaundice since early childhood. No history of abdominal pain, nausea or vomiting. No bleeding symptoms. Initial work up by PCP showed mild macrocytic anemia. Mom has history of jaundice of unclear etiology. O/E she has evidence of scleral icterus, no pallor and no evidence of hepatosplenomegaly. WBC 4.8K/uL, RBC 3.4 million/uL (4-5.47), H/H 11.3/34, MCV 100, MCHC 33.1, platelets 477K/uL, RDW 29.8% (11-14.5). Total bilirubin 2.8 (0.3-1.2) and indirect bilirubin 2.6 (0.2-1.0), retic 2%. Liver …

Autoimmune Cytopenia(S) Might Be Initial Presentation Of Primary Immunodeficiency And Immune Dysregulation Disorders, Shirley Abraham, Elif Dokmeci

2022 Pediatric Research Forum Session

Background: Primary immunodeficiency is common diagnosis among patients with autoimmune cytopenia. Autoimmunity and immune dysregulation causing immune cytopenias might be an initial presentation in some patients. Case Presentation: We report 2 patients who presented with single lineage cytopenia. Patient 1: 19y/o female who was admitted 4 years ago with severe anemia. Work up showed H/H 6.7/19, retic 8%. Antibody screen positive, warm, and cold autoantibodies, Mycoplasma IgG and IgM were positive. She was diagnosed with autoimmune hemolytic anemia. She had 4 recurrences and was treated with systemic steroids with a positive response. No history of recurrent infections but had chronic …

Assessing Food Insecurity When Caring For Children With Bmi ≥85th Percentile, Kathryne (Kitty) Foos, Janet Page-Reeves, Sylvia Negrete, Alberta Kong, Monique Vallabhan

2022 Pediatric Research Forum Session

Childhood obesity is a growing epidemic in the United States and New Mexico. Excess weight early in life progressively increases risks of severe health complications in adulthood. Healthy and Fit Children’s Clinic (H&FCC) at Carrie Tingley Outpatient Children’s Clinic treats children ages 2-17 years old with elevated body mass index (BMI; ≥85th percentile). Providers work to lower children’s BMI and risks for chronic cardiometabolic comorbid conditions through lifestyle changes. Successful weight management requires a comprehensive treatment plan including social determinants of health (SDoH) assessment. One key SDoH is food insecurity. H&FCC serves vulnerable populations. Providers are anecdotally aware of patients’ …

Hemophagocytic Lymphohistiocytosis As An Acute Febrile Illness In A Child With Congenital Hiv: Acase Report, Morgan Day, Lorena Galvan, Christal Chow

2022 Pediatric Research Forum Session

We report the complex case of a nine-year-old male who was adopted from Ghana approximately four years ago with a past medical history significant for congenital HIV on combination antiretroviral therapy and treated latent tuberculosis who presented with persistent fevers of unknown origin and who was ultimately diagnosed with multisystem hemophagocytic lymphohistiocytosis (HLH). As seen with our patient, the variable clinical presentations of HLH make obtaining a diagnosis challenging.1 Hemophagocytosis is a multisystem inflammatory syndrome that occurs when regulatory pathways responsible for the natural termination of immune and inflammatory responses are disrupted or overwhelmed.2 This regulatory failure results in excessive …

Megacystitis-Microcolon-Intestinal Hypoperistalsis Syndrome: A Case Report, Kelsey Soppet, Patricia J. Hogan

2022 Pediatric Research Forum Session

MM is a 12-month-old female with history of chronic constipation, megacystitis, muscle weakness and failure to thrive who presented to the pediatric ED for massive abdominal distention in the setting of decreased oral intake. CT revealed severely distended bladder compressing the colon. She was admitted for concerns of dysmotility and chronic intestinal pseudo-obstruction. Prior traditional constipation therapies, celiac panel, milk-protein allergy, and Hirschsprung’s workup were negative. Neurologic workup was negative. An upper GI with small bowel follow-through revealed delayed transit constipation. Surgery performed exploratory laparotomy with intraoperative findings of malrotation and markedly dilated colon concerning for colonic pseudo-obstruction. Ladd’s procedure …

The Influence Of Maternal And Child Interactive Behaviors On Early Child Development, Kati N. Baillie, Tiffany J. Emery, Jean R. Lowe, Sofia M. Markee

2022 Pediatric Research Forum Session

Background: The quality of interactions between children and their caregivers significantly impacts a child’s development. We explored the relationship between maternal interactive behaviors during play, parental well-being and cognitive and language development in children aged 18 months old. Methods: Healthy term infants were recruited in Albuquerque, NM between 2010-2012 as part of a longitudinal study (n=40). BSID-III was used as an objective measure of cognitive and language development. Parental well-being was measured using a parental stress index (PSI) questionnaire in addition to socioeconomic status (SES). The Maternal Attention Directing Manual (S. Landry 2000) was used to code free-play videos of …

Formula Fortification For The Preterm Infant After Discharge From The Nicu, Erin Swieter, Dawn Novak, Kara Mckinney

2022 Pediatric Research Forum Session

Background: Nutrition for the preterm infant following hospital discharge from the NICU varies greatly among institutions, however studies have shown that a high percentage of preterm infants globally have growth values infants, studies have shown that late preterm infants have higher mineral requirements than term infants and nutritional requirements of late preterm infants is also greater than that of term infants. While human milk and breastfeeding is recommended for the first six months of life, preterm and late preterm infants are likely to require fortification to promote growth and development after leaving the hospital.

Objective: To anonymously survey pediatric healthcare …

Utilization Of Near-Infrared Spectroscopy Technology To Determine Normative Cerebral Regional Oxygen Saturation In A Preterm Population Born At Altitude, Leah Enright, Dawn Novak, Jessie R. Maxwell

2022 Pediatric Research Forum Session

Background: Near-infrared spectroscopy (NIRS) is a non-invasive technique for monitoring regional oxygenation of underlying tissues and has been well validated in neonates. Cerebral oxygenation may be a better predictor for risk of brain hypoperfusion and subsequent adverse neurodevelopmental outcomes than standard hemodynamic monitoring parameters. Low or fluctuating cerebral oxygenation has been shown to be associated with increased risk of intraventricular hemorrhage (IVH), adverse neurodevelopmental outcomes, and death in preterm infants. Reference ranges for cerebral oxygenation in the first several days of life using NIRS have been published for preterm (<37 >weeks’ gestation) infants born at sea level, but no published …

Touchscreen Operant Platform Paradigms Reveal Differences In Attention And Inhibition But Not In Flexibility After Moderate Prenatal Alcohol Exposure And Placental Insufficiency, Brooke R. Dunn, Sarah Olguin, Suzy Davies, Jonathan Brigman, Daniel D. Savage, Jessie R. Maxwell

2022 Pediatric Research Forum Session

Touchscreen Operant Platform Paradigms Reveal Differences in Attention and Inhibition but not in Flexibility After Moderate Prenatal Alcohol Exposure and Placental Insufficiency Prenatal Alcohol Exposure (PAE) can result in fetal alcohol spectrum disorder (FASD), with individuals demonstrating abnormalities in frontal cortical development with a range of deficits in attention, executive functioning, and response inhibition. A higher incidence of placental insufficiency (PI), which can lead to neurodevelopmental delays, occurs in the setting of PAE. The impact of this combined insult on neurodevelopmental outcomes is lacking. To establish a model of combined moderate PAE and PI, pregnant Long-Evans rats voluntarily drank 5% …

Development And Implementation Of A Pediatric Critical Caretransport Education Curriculum, Cassondra Burton Greenbaum, Verena Weissenborn

2022 Pediatric Research Forum Session

Background: Continuing education is imperative for all medical providers particularly those who deliver care to specialized populations such as transport of critically ill pediatric patients. Currently at the University of New Mexico, there is no designated pediatric transport team in which members have specialized training. The combination of a primarily rural state with a large catchment area and limited resources presents a need to reinforce pediatric specific concepts. Methods: A didactic curriculum with 12 topics relevant to the transport of critically ill pediatric patients was designed. The target audience included members of our hospital-based medical transport team. Prior to implementation, …

The Influence Of Maternal-Child Interactions During Early Child Development And The Impact On Anterior Cingulate Cortex Volumes, Sofia Markee

2022 Pediatric Research Forum Session

Background: Studies investigating differences in regional brain volumes in children during early childhood are limited. Many theories suggest the anterior cingulate cortex (ACC) is at the center of the brain’s self-regulatory system playing a key role in learning and emotion. Our aim is to investigate the volume of the ACC identified with MRI and developmental outcomes in children at 18 months. We hypothesize the volume of the ACC will be larger in children who received more positive directing behaviors from their mothers during play and ACC volumes will be larger in children with higher cognitive and language scores as measured …

The Impact Of Coronavirus Disease 2019 On Maternal And Infant Characteristics In New Mexico, Hellen Ko, Katie Baille, Orrin Myers, Jessie R. Maxwell

2022 Pediatric Research Forum Session

Introduction:

Illnesses caused by coronaviruses have previously been shown to affect maternal and neonatal morbidity and mortality. Coronavirus disease 2019 (COVID-19) has been shown to affect vasculature including placental changes. As significant remodeling of the placenta occurs at the end of the first trimester into the second trimester, insults during this crucial period could affect placental functionality, with impact on fetal growth and well-being. Thus, we explored the relationship between antenatally-acquired maternal COVID-19 infection and birth characteristics.

Methods:

A retrospective chart review was completed using the University of New Mexico electronic medical record system. ICD-10 codes were used to identify …

Investigating The Impact Of Skin To Skin Care On Preterm Infant Heart Rate Variability, Erin Swieter, Julia Stephen, Jessie R. Maxwell, Kristi Watterberg

2022 Pediatric Research Forum Session

Background: Skin-to-skin care (the intermittent placement of a diaper-clad infant on a caretaker’s chest to enhance attachment and parental self-esteem), is a common occurrence in most newborn intensive care units (NICUs). Skin-to-skin care has been shown to be safe for preterm infants, independent of respiratory support. Heart rate variability (HRV), the temporal variation between consecutive heart beats, provides a measure of the balance between sympathetic and parasympathetic nervous system. HRV increases with gestational age and changes in HRV are associated with various clinical conditions. Therefore, measuring heart rate variability may be useful in capturing clinical dynamic changes in autonomic regulation …

A Potpourri Of Ingested Foreign Bodies At Unm From January To March 2022, Rasha A. Elmaoued, Razan Alkhouri, Richardo Castillo, Rajmohan Dharmarai, Pankaj Vohra

2022 Pediatric Research Forum Session

Introduction:

Foreign body (FB) ingestion is a clinical challenge in children. Most are accidental and occur in children under 6 years. Guidelines published in 2015 by the North American Society of Pediatric Gastroenterology, Hepatology, and Nutrition (NASPGHAN) aid in the management decision-making process. We present cases of pediatric FB ingestion at UNMH between January and March 2022 and management for each case.

Cases:

Case 1: A 9-year-old boy swallowed a heart-shaped pendant. Two days after being found in the stomach, it passed to the colon without intervention.

Case 2: A 5-year-old boy swallowed 17 Buckyball magnets found in the rectum …

Utility Of Laboratory Screening For Inherited Thrombophilia In The Acute Setting For Hospitalized Pediatric Patients, Ella Dolan, Jason Koury, Shirley Abraham

2022 Pediatric Research Forum Session

Background: Pediatric patients with thromboembolic events (TEEs) often undergo testing for inherited thrombophilia disorders,1 including anti-thrombin III deficiency, Factor V Leiden mutation, prothrombin 20210 mutation, protein C deficiency, and protein S deficiency. While some data suggests testing for these disorders in all pediatric patients with a confirmed thrombosis,2 there is increasing evidence that this often does not result in meaningful changes in management1,3,4 and may not be cost effective.1 Another group suggests a stepwise testing algorithm to optimize diagnosis while preventing excessive testing.5 Our study will evaluate the rate of testing that results in diagnosis and management changes and explore …

Pilot Study To Assess Feasibility Of Using A Fitness Tracker Device And Monitoring System To Support Clinical Weight Management Via Telemedicine Contacts In Adolescents, Thien-Dang N. Vu, Patricia Roldan, Sarah G. Sanders, Bernard A. Mensah, Elizabeth Y. Jimenez, Alberta S. Kong, Monique K. Vallabhan

2022 Pediatric Research Forum Session

Objective: The purpose of this pilot study was to determine feasibility and usefulness of integrating a fitness tracker (device for self-monitoring physical activity) coupled with a software program viewable by the clinician into virtual clinical interactions.

Methods: Adolescents with obesity (BMI >95th percentile) treated at a weight management clinic used a fitness tracker and associated phone application (app) to self-monitor physical activity for 4 weeks. We developed a parent guide with instructions for use of the device and app, and assisted participants with device set-up and app installation. Participants received weekly follow-up coaching from a clinical health educator via telemedicine …