Nutrition Commons^™

Dietitian-Led Nutrition Care Across The Cellular Therapy Continuum Supports Weight And Strength Recovery, Ashley Pagano Ms, Rdn, Ldn, Samantha Okerson Rdn, Erin Levine Rd, Cso, Ldn, Deanna Yerg Ms, Rdn, Ldn

Clinical Nutrition Service

No abstract provided.

High-Osmolality Medication Exposure And Length Of Stay In Icu Patients With Rectal Tubes, Kimberly Cephas Ms, Rdn, Ldn, Rachel Geosits Ms, Rdn, Cnsc, Ldn, Matthew Fair Pharmd, Hope Kincaid Mph, Cph, Alison Sutter Mph

Clinical Nutrition Service

No abstract provided.

Bridging The Gap Between Function-Based And Iddsi Standards In Dysphagia Care, Chien-Hui Cheng

Rehabilitation Practice and Science

No abstract provided.

Examining The Factor Structure And Subgroup Invariance Of The Deliberate Denial Of Disordered Eating Behaviors Scale, Lindsay Howard, Sage Hawn, Kayla D. Pitchford, Riley Mcgrath, Aubri Farniok, Arturo Sesma, Kristin E. Heron

Psychology Faculty Publications

The denial, concealment, or omission of disordered eating behaviors has received limited attention in the eating disorder literature, partly due to the lack of reliable and valid measures. This study re-examined the factor structure of the Denial of Disordered Eating Behaviors Scale (DDEBS-12) and tested measurement invariance across gender identity, racial identity, and levels of disordered eating in a non-clinical undergraduate sample (N = 3285). Confirmatory factor analyses did not support the original unidimensional structure. Instead, a seven-item model assessing denial of dietary restriction demonstrated the best fit and was renamed the DDEBS-restriction. The revised scale showed good internal consistency …

Nutrient-Driven Transcription Factor-Dna Interactions And Their Signaling Mechanisms In Metabolic Disease, Evelyn A. Bates

Theses and Dissertations--Nutritional Sciences

Metabolic homeostasis is maintained through tightly coordinated signaling networks that integrate diverse physiological inputs. Central to this regulation are transcription factors, which sense nutrient, hormonal, and vitamin-derived signals and translate them into coordinated gene expression programs. Transcription factor activity is governed by DNA binding, recruitment of coregulatory proteins, and interactions with specific response elements in gene promoters, which allows them to selectively modulate diverse metabolic pathways. Owing to their multifactorial and tunable nature, transcription factors have emerged as promising targets for the treatment and diagnosis of metabolic diseases, including metabolic dysfunction-associated steatotic liver disease (MASLD). This dissertation explores the molecular …

The Treatment Of Obesity In The Context Of The Obesity Paradox In Patients With Heart Failure: A Narrative Review, Pamela L. Alebna, Sarah Martey, Anurag Mehta, Carl J. Lavie, Salvatore Carbone

EVMS School of Health Professions Faculty Publications

Purpose of review

While excess adiposity is a known risk factor for incident heart failure ( HF), once the condition is established, observational data suggest that increased body mass index (BMI) may confer a survival advantage. This paradox has emphasized the underlying roles of cardiorespiratory fitness (CRF), and body composition, particularly lean mass (LM), in influencing clinical outcomes.

Recent findings

In this review, we explore the multifaceted nature of the obesity paradox in HF, with a focus on emerging anti-obesity incretin-mimetic therapies, such as glucagon-like peptide-1 receptor agonists (GLP-1 RAs) and dual GLP-1/glucose-dependent insulinotropic polypeptide (GIP) receptor agonists. These agents …

“Shaking The Ladder” Reveals How Analytic Choices Can Influence Associations In Nutrition Epidemiology: Beef Intake And Coronary Heart Disease As A Case Study, Colby J Vorland, Lauren E O'Connor, Beate Henschel, Cuiqiong Huo, James M Shikany, Carlos A Serrano, Robert Henschel, Stephanie L Dickinson, Keisuke Ejima, Aurelian Bidulescu, David B Allison, Andrew W Brown

Children’s Nutrition Research Center Staff Publications

Nutrition epidemiological models involve many analytic decisions, such as defining exposures, selecting which covariates to include, or configuring variables in different ways. We explored the impact of analytical decisions on conclusions in nutrition epidemiology using self-reported beef intake and incident coronary heart disease as a case study. We used REasons for Geographic and Racial Differences in Stroke (REGARDS) data, and selected covariates and their configurations from published literature to recapitulate common models used to assess associations between meat intake and health outcomes. Three model sets were designed: sets one and two used continuous and quintile-defined beef intakes, respectively, each with …

Crab And Lobster Shell Meal Taste Preferences Of Dairy Heifer Calves, Summer R. Pescinski, Peter S. Erickson

Honors Theses and Capstones

Objective: This preference study was conducted to evaluate the palatability of crab shell meal (CM) and lobster shell meal (LM) when added to calf starter for post-weaned dairy heifer calves.

Materials and methods: Six calves were used for a sequential elimination experiment to rank their taste preferences when offered control calf starter, calf starter mixed with 50 g of CM, and calf starter mixed with 50 g of LM.  The calves were kept on the study for a total of 5-d split into two feeding segments.  Preference was determined by calculating the total intake of each treatment …

Evaluating The Healthfulness Of The University Of New Hampshire’S Food Environment Using The Healthy Campus Environmental Audit (Hcea), Margo Kamis

UNH URC Open (2026 and after)

Evaluating the Healthfulness of the University of New Hampshire’s Food Environment Using the Healthy Campus Environmental Audit (HCEA)

Patient Characteristics, Growth Indices, And Treatment Outcomes Among Children With Feeding Difficulties, Amelia Kearney

Theses, Dissertations and Culminating Projects

Pediatric feeding difficulties is an umbrella term that is used to describe children with a variety of problematic feeding behaviors and/or mealtime impairments that can impact age-appropriate food consumption, growth and the caregiver-child relationship. There is a lack of research from nutrition professionals regarding the nutrient intake, diet quality and growth outcomes among patients with pediatric feeding difficulties. Furthermore, changes in nutrient intakes during intensive outpatient treatment have not been formally assessed. PURPOSE: The purpose of Manuscript 1 was to describe the demographic profile, medical history, and baseline mealtime behaviors, usual diet, and diet quality of patients with feeding difficulties …

Health Disparities In Cardiovascular Care: The Impact Of Diabetes Education And Post-Discharge Interventions For African American Adults At Risk For And After Myocardial Infarction, Trinity L. Billingsley

Nursing | Senior Theses

Background: Cardiovascular disease is the leading cause of death in the United States, affecting African American adults at higher rates compared to other racial and ethnic groups. Diabetes as a comorbidity is one of the risk factors of experiencing a myocardial infarction, remaining one of the leading causes of death among individuals with diabetes. Objective: To examine the effectiveness of structured diabetes education tailored to African American adults who are at risk for and after a myocardial infarction. Additionally assessing the complications of a myocardial infarction, the outcomes associated with structured education will be compared to the outcomes of …

Vitamin D Status During Pregnancy Modulates The Effect Of Pre-Pregnancy Obesity On Gestational Diabetes Mellitus Risk: A Birth Cohort Study, Ali H. Ziyab, Abdullah Al-Taiar, Reem Al-Sabah, Majeda S. Hammoud, Saeed Akhtar

Epidemiology, Biostatistics, & Environmental Health Faculty Publications

Objective:

To determine whether gestational vitamin D status modulates the effect of pre-pregnancy obesity on gestational diabetes mellitus (GDM) risk while stratifying by maternal age.

Design:

Birth cohort.

Setting:

A major maternity hospital in Kuwait.

Participants:

Pregnant women in their second/third trimester of gestation were enrolled. Pre-pregnancy body mass index (BMI, kg/m²) was categorized as under/normal weight (< 25.0), overweight (25.0 to < 30.0), and obesity (≥30.0). Gestational 25-hydroxyvitamin D concentrations were categorized as deficiency (< 50 nmol/L) or insufficiency/sufficiency (≥50 nmol/L). GDM status was ascertained according to international guidelines. Adjusted odds ratios (aOR) and 95% confidence intervals (CI) were estimated using logistic regression.

Results:

Data from 957 pregnant women were analyzed, with GDM affecting 166 (17.4%) pregnancies. Pre-pregnancy obesity and gestational vitamin D deficiency was ascertained in 275 (28.7%) and 533 (55.7%) pregnant women, respectively. The association between pre-pregnancy obesity and GDM risk differed according …

Eat With Understanding: A Um Student Guide To Food Systems, James Deacon, Cora Johnson, Lucas Dymit, Kaeli Rackham, Elsie Danyo

Undergraduate Theses, Professional Papers, and Capstone Artifacts

The industrialized food system creates environmental harm, reduces food sovereignty, and contributes to growing food insecurity. These problems oftentimes are overlooked in higher education. To address this gap, our project examines how access to sustainable food education and campus-community partnerships can improve well-being and informed decision-making amongst University of Montana students. This collaborative project connects partners within UM Wellness, PEAS Farm, the Missoula Food Bank and Community Center, and the Big Sky Culinary Institute. Our research includes applied learning with these organizations by hosting a variety of speaker series presentations and coordinating a cooking workshop. We collected quantitative and qualitative …

A Narrative Review Of The High-Carbohydrate Fueling Revolution (≥100 G/H) In The Professional Peloton, Patrick B. Wilson

Exercise Science Faculty Publications

High-carbohydrate fueling in cycling (defined as ≥ 100 g/h for this paper) has received significant media attention in recent years. Whether this practice improves performance, however, remains an unresolved issue in the scientific literature. The purpose of this narrative review is to provide an up-to-date analysis of the practice of high-carbohydrate fueling, with a specific focus on potential performance implications in professional cycling. Topics covered include historical carbohydrate intake guidelines, research directly comparing high-carbohydrate fueling with traditional fueling guidelines, theorized benefits of high-carbohydrate fueling specific to cycling, potential risks associated with high-carbohydrate fueling, and personalizing carbohydrate intakes. Among a small …

Physical Activity Among Active-Duty Us Military Servicemembers With Overweight And Obesity, Natalie M. Yarish, Jessica L. Morse, Jennalee S. Wooldridge, Erin E. Dooley, Niloofar Afari

Exercise Science Faculty Publications

Background

To examine physical activity (PA) among US military servicemembers (SM) with overweight and obesity (OW/OB) and if they meet Physical Activity Guidelines (PAG). To assess differences in PA by sex and associations between PA and body composition.

Methods

PA duration and intensity were objectively collected via accelerometers and self-reported daily average via self-report International Physical Activity Questionnaire (IPAQ) among US active-duty SM (n=113, 58% female, Mean BMI = 33.3 ± 3.9 kg/m2). Sex, body mass index (BMI), and body fat % (BF% via circumference and an equation) were measured. Accelerometer PA and sedentary time were computed for IPAQ categories …

Low Energy Availability And Dietary Factors In High School Runners, Natalie E. Allik

All Master's Theses

ABSTRACT

LOW ENERGY AVAILABILITY AND DIETARY FACTORS IN HIGH SCHOOL RUNNERS

By

Natalie Elizabeth Allik

June 2026

Context: Low energy availability (LEA) is associated with adverse health and performance outcomes in athletes and may be particularly concerning during adolescence when growth and bone development are ongoing. Although inadequate carbohydrate (CHO) intake has been proposed as a contributor to LEA, limited research has examined this relationship in adolescent endurance athletes. Objective: To examine dietary intake, bone mineral density (BMD), and eating disorder (ED) risk in adolescent distance runners with and without LEA. Methods: Eighteen adolescent distance runners (15.7 ± 1.2 years; …

Food Stamp Participation And Health Outcomes In Ca Immigrants, Esther Kang

Scripps Senior Theses

The U.S. social welfare system includes programs aiming to increase access to nutritious food to reduce nutrition insecurity. However, studies suggest that immigrants continue to face disproportionate risks of nutrition insecurity and may face barriers to enrollment due to legal status. This study, using secondary data from the 2023 California Health Interview Survey, examines the associations between food stamp participation, food insecurity, and clinical diagnosis of diabetes among adult U.S.-born, naturalized, and non-citizen adults in California. The findings suggest that those enrolled in food stamps are more likely to report food insecurity than those who are not enrolled, and that …

South Asians And Renal Disease: Traditional Food Lists For Management Of Chronic Kidney Disease, Ashwini Wagle

Open Educational Resources

The renal food list is a culturally tailored nutrition education tool designed to address the specific dietary needs of the South Asian population. It is an original intellectual work created by Ashwini Wagle, Ed.D., MS, RD, FAND, Chair and Professor, Department of Nutrition, Food Science, and Packaging at San José State University (SJSU).

An earlier version of this tool was published in 2011 with the assistance of graduate student Kalpana Balasubramanian. The development of this renal food list was strengthened by the encouragement and support of the registered dietitian community, whose contributions included verifying the accuracy of the nutritional information …

Ethanol And Iron Absorption Interactions Within Crayfish Invertebrate Models, James Rollman, Andrew Wissmar

Williams Honors College, Honors Research Projects

Analysis of the effects of alcohol consumption (ethyl-alcohol) on iron absorption within crayfish model. The use of tube-feeding provides a novel, more precise output, and less invasive procedure compared to the traditional approach of dissolving the target substance in tank water and measuring hemolymph changes. The project aims to determine the extent to which alcohol influences iron absorption. Ultimately, the choice of iron reflect the future potential to aid in research with genetic hemochromatosis and or Iron overload.

Insulinemic And Inflammatory Dietary Patterns And Colorectal Cancer Risk: A Dietary Data Harmonization Study Of One Million Participants In The Consortium Of Metabolomics Studies (Comets), Ni Shi, Rachel Hoobler, Rhea Harewood, Amanda E Toland, Demetrius Albanes, Emmanouil Bouras, Marc J Gunter, Linda M Liao, Steven C Moore, Fulvio Ricceri, Jerome I Rotter, Rashmi Sinha, Rachael Stolzenberg-Solomon, Anne Tjønneland, Alexis C Wood, Danxia Yu, Mary C Playdon, Fred K Tabung

Children’s Nutrition Research Center Staff Publications

Background: Inflammatory and insulinemic dietary patterns have been associated with colorectal cancer (CRC) risk, but generalizability across diverse populations with heterogeneous food supplies and dietary behaviors has not been established.

Objectives: We harmonized disparate dietary and covariate data on a large scale to compute the reverse Empirical Dietary Index for Hyperinsulinemia (rEDIH), reverse Empirical Dietary Inflammatory Pattern (rEDIP), and Healthy Eating Index (HEI)-2015 scores, and tested their associations with CRC risk.

Methods: We leveraged data among 501,892 women and 407,390 men from 6 cohorts across the United States (NIH-AARP, Multi-Ethnic Study of Atherosclerosis, Prostate, Lung, Colorectal, and Ovarian, SCCS) and …

Polyfluoroalkyl Substances And Altered Glucose Homeostasis In Adolescents Following Bariatric Surgery, Elizabeth Costello, Brittney O Baumert, Zhenjiang Li, Vishal Midya, Shudi Pan, Justin R Ryder, Thomas H Inge, Todd M Jenkins, Stephanie Sisley, Stavra A Xanthakos, Anita Courcoulas, Douglas I Walker, Nikos Stratakis, Damaskini Valvi, Scott M Bartell, Angela L Slitt, Rohit Kohli, Sarah Rock, Michele A La Merrill, Sandrah P Eckel, Max T Aung, Rob Mcconnell, David V Conti, Lida Chatzi

Children’s Nutrition Research Center Staff Publications

Objectives: Bariatric surgery is an effective treatment for severe obesity and associated metabolic comorbidities. Exposure to polyfluoroalkyl substance (PFAS) before bariatric surgery may attenuate improvements in glucose metabolism and explain some of the heterogeneity in post-surgery outcomes.

Design: This is an observational cohort study.

Methods: Adolescents (n = 186) enrolled in the Teen-Longitudinal Assessment of Bariatric Surgery study were included. Eight-PFAS congeners were measured in plasma before surgery. Linear and logistic regressions were used to examine cross-sectional associations between log2-transformed PFAS (ng/mL) and fasting glucose, insulin, hemoglobin A1c (HbA1c), and homeostatic model assessment for insulin resistance (HOMA-IR). Linear mixed …

Effects Of Fermented Soybean Products On The Human Gut Microbiome, Microbial Metabolism, And Host Physiology, Shannon Moncier

Biology Dissertations

Fermented soybean products (FSPs) contain soybean-derived substrates, fermentation-associated microorganisms, and bioactive compounds that may interact with the human gut microbiome and host physiology. However, despite the growing interest in FSPs, longitudinal human studies specifically evaluating traditional Korean-FSPs (K-FSPs), particularly among United States-based populations, remain limited. The objective of this work was to evaluate the effects of three K-FSPs, including Cheonggukjang, Gochujang, and Doenjang, on host physiological responses, gut microbial community structure, predicted microbial functional potential, and fecal butyrate responses in healthy adults. Three independent dietary intervention cohorts were conducted using FSP formulations produced either by traditional artisan methods (Product A) …

Photovoice Exploration Of Afghan Refugee Background Women's Food-Related Well-Being, Eileen C. Lindemann

Graduate Research Theses & Dissertations

More than 117,000 Afghans have been relocated to the United States following the U.S. military withdrawal in August 2021. Research indicates that Afghan refugees resettled in the U.S. are at increased risk of psychological distress, with Afghan women particularly susceptible compared with Afghan men, and diet-related chronic disease. However, research also shows that traditional food and eating customs foster cultural identity, social support, integration, and well-being. The purpose of this study was to collaboratively explore the food-related well-being and daily life contexts of resettled refugee participants through the photovoice method, a participatory research strategy in which participants photograph aspects of …

Prepregnancy Overweight And Obesity In Kuwait Birth Cohort Study, Abdullah Al-Taiar, Ali H. Ziyab, Eelaf A. Husain, Maryam M.Y. Mohammad, Maryem A. Shamsah, Noor Salah Alali, Reem Sharaf-Alddin, Majeda S. Hammoud

Epidemiology, Biostatistics, & Environmental Health Faculty Publications

Objectives: This study aimed to estimate the prevalence of prepregnancy obesity and overweight, and to identify a set of sociodemographic factors that could guide weight management interventions for women prior to conception.

Design, Sample, and Measurements: Pregnant women (N = 989) were recruited in the Kuwait Birth Cohort Study during the period June 2017 to February 2020. Prepregnancy weight and height were self-reported, while current weight and height were measured in a standardized procedure. Data on sociodemographic factors were collected through face-to-face interviews conducted by a trained data collector. Multinomial logistic regression was used to investigate the association between sociodemographic …

Reducing Inorganic Phosphorus In Poultry Diets: Nutritional Constraints And Strategies For Successful Implementation, Elizabeth Ann Lynch

Graduate Theses, Dissertations, and Problem Reports (ETD)

Applied poultry nutrition and feed manufacture science can be described as a “three-legged stool” supported by pellet quality, feed hygienics, and nutrient availability, where imbalance in any one component can compromise overall bird performance. The research presented herein primarily addresses feed hygienics and nutrient availability, with pellet quality serving as an underlying theme, to better understand how processing conditions and dietary formulation influence performance and nutrient utilization.

In Chapter 2, the objective of this study was to evaluate the effects of hygienizer retention time on bacterial reduction during feed manufacture using Enterococcus faecium as a Salmonella surrogate. Pellet mill motor …

Homoplasy Of Maxillary Orthognathism In Derived Homo, Jared Jordan

Graduate Studies Theses and Dissertations 2026

The evolution of the orthognathic condition in the genus Homo represents a monumental transition toward the facial morphology of modern humans from that of earlier hominins, but the phylogenetic positioning of this transformation remains poorly understood. This study investigated temporal trends in maxillary and mandibular prognathism in the genus Homo, and whether maxillary and mandibular shortening in East Asian H. erectus and later East Asian Middle Pleistocene Homo (e.g., Homo longi) represent independent derivations of orthognathic morphology, thereby making orthognathism a homoplasy in the genus Homo. Using a sample of roughly 109 cranial and mandibular specimens spanning …

Limosilactobacillus Reuteri Alleviates Proinflammatory T-Cell-Mediated Liver Injury And Transcriptomic Changes In Immunocompromised Mice, Ana Fadhel Alvarez, Zheng Yin, Beanna Okeugo, Alexander Banerjee, Meng Luo, Christopher M Taylor, Salomea Giorgberidze, Vaishali Harne, Rambabu Majji, Melissa N Munroe, Ji Ho Suh, Stephen T C Wong, Kang Ho Kim, Hari Krishna Yalamanchili, Suhair Al Salihi, Jon Marc Rhoads, Yuying Liu

Children’s Nutrition Research Center Staff Publications

Background: A deficiency of immunosuppressive regulatory T cells, as seen in scurfy (SF) mice or in IPEX syndrome in humans, can lead to multiorgan inflammation. Oral administration of the probiotic Limosilactobacillus reuteri Deutsche Sammlung von Mikroorganismen und Zellkulturen GmbH (DSM) 17938 prolongs survival and reduces Th1- and Th2-associated inflammation in SF mice. It remains unclear how DSM 17938-educated SF-CD4+ T cells modulate T-cell-liver communication.

Methods: To characterize CD4+ T cells from SF mice orally administered DSM 17938 (Prob-SF-CD4+ T cells) and to compare them with CD4+ T cells from SF mice (SF-CD4+ T cells), cells isolated from SF spleens were …

Health And Nutrition In The First 1000 Days Of Life, Yaojiang Shi, Qi Zhang, Yiliang Zhu, Jingchun Nie

Health Behavior, Policy & Management Faculty Publications

Malnutrition and health issues remain persistent global crises, with developing regions bearing the brunt of the burden. According to the World Health Organization, nearly half of under-five deaths in low-and middle-income countries are linked to malnutrition, while stunting, wasting, and micronutrient deficiencies impair the development of millions of children annually. The studies in this special issue focus on countries facing distinct yet interconnected challenges: Sub-Saharan African nations grapple with high rates of stunting and maternal high-risk fertility behaviors; China confronts rural-urban disparities in dietary diversity and grandparenting practices; Colombia struggles with intersectional inequalities driving infant mortality; and Zambia faces unique …

Advancing Food Equity Through Explainable Ai (Xai): Identifying Place-Based Factors And Conditions Of Food Security, Leslie Hoglund, Hyoshin Park

Health Behavior, Policy & Management Faculty Publications

Food behaviors, food security, and their association with socioeconomic factors constitute a critical area of study with implications for public health, economic stability, and social equity. Understanding these relationships are essential for developing effective policies and interventions that promote sustainable, healthy food systems and greater food equity. This paper employs explainable artificial intelligence (XAI) methods to identify key features influencing household food behaviors. The insights gained from the XAI analysis are further utilized in conjunction with inverse reinforcement learning (IRL) to examine expert behaviors related to eating habits satisfaction. The XAI results reveal that household health conditions, spending patterns, and …

Chia Seed Gel Powder As A Clean-Label Enhancer Of Texture, Physicochemical Quality, Antioxidant Activity, And Prebiotic Function In Probiotic Low-Fat Yogurt, Mahmoud E. A. Hamouda, Ratul Kalita, Abdelfatah K. Ali, Pratibha Chaudhary, Pramith U. Don, Omar A. A. Abdelsater, Anjali Verma, Yaser Elderwy

Nutrition, Dietetics, and Food Science Student Research

This study evaluated the effect of incorporating chia seed gel powder (CSGP) as a natural, clean-label stabilizer on the physicochemical, functional, microbiological, microstructural, antioxidant, and sensory properties of probiotic low-fat yogurt (PLFY) during 21 days of refrigerated storage. Six formulations were prepared using 0–2.5% CSGP, including Control (0% CSGP), YOG1 (0.5% CSGP), YOG2 (1.0% CSGP), YOG3 (1.5% CSGP), YOG4 (2.0% CSGP), and YOG5 (2.5% CSGP). Results showed that increasing CSGP levels noticeably enhanced the total solids, protein content, viscosity, hardness, and water-holding capacity of the PLFY (p < 0.05), while consistently reducing syneresis. Antioxidant activity also rose with higher CSGP concentrations, with YOG5 exhibiting the greatest DPPH scavenging activity (35.12%). Confocal laser scanning microscopy revealed a denser and more uniform protein network in PLFY fortified with CSGP, consistent with rheological measurements showing increased storage (G′) and loss (G″) moduli. Probiotic viability significantly increased (p < 0.05) in CSGP-added samples, indicating a potential prebiotic effect of CSGP. Sensory results demonstrated that although higher CSGP levels slightly darkened the yogurt color, body, texture, flavor, and total sensory scores improved markedly, with YOG5 gaining the highest total score (81.77). The results demonstrate that CSGP acts as a highly effective, multifunctional ingredient that enhances texture, stability, probiotic viability, and antioxidant capacity, making it a strong clean-label candidate for developing high-quality, functional probiotic low-fat yogurt.