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2021

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Individual Donor Strains Do Not Show Link Between Fecal Microbe Transplantation And Successful Melanoma Immunotherapy, Jeff Hansen Oct 2021

Individual Donor Strains Do Not Show Link Between Fecal Microbe Transplantation And Successful Melanoma Immunotherapy, Jeff Hansen

Browse All News

No abstract provided.


October 6, 2021 Faculty Senate Minutes, University Of South Carolina Oct 2021

October 6, 2021 Faculty Senate Minutes, University Of South Carolina

Faculty Senate

No abstract provided.


The Individual Water Insecurity Experiences (Iwise) Scale: Reliability, Equivalence And Validity Of An Individual-Level Measure Of Water Security, Sera L. Young, Hilary J. Bethancourt, Zacchary R. Ritter, Edward A. Frongillo Jr. Oct 2021

The Individual Water Insecurity Experiences (Iwise) Scale: Reliability, Equivalence And Validity Of An Individual-Level Measure Of Water Security, Sera L. Young, Hilary J. Bethancourt, Zacchary R. Ritter, Edward A. Frongillo Jr.

Faculty Publications

Objective: The lack of a validated and cross-culturally equivalent scale for measuring individual-level water insecurity has prevented identification of those most vulnerable to it. Therefore, we developed the 12-item Individual Water InSecurity Experiences (IWISE) Scale to comparably measure individual experiences with access, use, and stability (reliability) of water. Here, we examine the reliability, cross-country equivalence, and cross-country and within-country validity of the scale in a cross-sectional sample.

Methods: IWISE items were implemented by the Gallup World Poll among nationally representative samples of 43 970 adults (15 y) in 31 low-income and middle-income countries (LMICs). Internal consistency was assessed …


The Lumberjack, October 06, 2021 Oct 2021

The Lumberjack, October 06, 2021

Cal Poly Humboldt's Student Newspaper

The student newspaper of Humboldt State University.


October 6, 2021, Faculty, Illinois Wesleyan University Oct 2021

October 6, 2021, Faculty, Illinois Wesleyan University

2021-2022

No abstract provided.


Virtual Reality In Healthcare: An Occupational Therapy Perspective, Wyatt Mead, Alexandra Harnica, Marion Marxer, Trent Paveglio Oct 2021

Virtual Reality In Healthcare: An Occupational Therapy Perspective, Wyatt Mead, Alexandra Harnica, Marion Marxer, Trent Paveglio

Masters Projects

Abstract

Object: There is limited research about how virtual reality is used in therapeutic settings and how specifically occupational therapy finds it valuable, when in the OT process to use VR, and across what setting and diagnosis it is utilized in. This descriptive study design is intended to determine when practitioners utilize VR during the OT process, what their aims are for using it, the types of VR systems being utilized, as well as anecdotal comparison of outcomes using VR versus other therapy modalities. To further explore this, qualitative one on one interviews will be conducted with practicing Occupational Therapists …


A Data-Driven Statistical Description For The Hydrodynamics Of Active Matter, Ahmad Borzou, Alison E. Patteson, J. M. Schwarz Oct 2021

A Data-Driven Statistical Description For The Hydrodynamics Of Active Matter, Ahmad Borzou, Alison E. Patteson, J. M. Schwarz

Physics - All Scholarship

Modeling living systems at the collective scale can be very challenging because the individual constituents can themselves be complex and the respective interactions between the constituents may not be fully understood. With the advent of high throughput experiments and in the age of big data, data-driven methods are on the rise to overcome these challenges. Although machine-learning approaches can help quantify correlations between the various players, they do not directly shed light on the underlying physical principles of such systems. Here, we present a data-driven method for obtaining the phase-space density of active matter systems such that the solution to …


Remote, Unsupervised Functional Motor Task Evaluation In Older Adults Across The United States Using The Mindcrowd Electronic Cohort, Andrew Hooyman, Joshua S. Talboom, Matthew D. De Both, Lee Ryan, Matthew J. Huentelman, Sydney Y. Schaefer Oct 2021

Remote, Unsupervised Functional Motor Task Evaluation In Older Adults Across The United States Using The Mindcrowd Electronic Cohort, Andrew Hooyman, Joshua S. Talboom, Matthew D. De Both, Lee Ryan, Matthew J. Huentelman, Sydney Y. Schaefer

Physical Therapy Faculty Articles and Research

COVID-19 has impacted the ability to evaluate motor function in older adults, as motor assessments typically require face-to-face interaction. One hundred seventy-seven older adults nationwide completed an unsupervised functional upper-extremity assessment at home. Data were compared to data from an independent sample of community-dwelling older adults (N = 250) assessed in lab. The effect of age on performance was similar between the in-lab and at-home groups. Practice effects were also similar. Assessing upper-extremity motor function remotely is feasible and reliable in community-dwelling older adults. This test offers a practical solution for telehealth practice and other research involving remote or geographically …


Diversity Of Tetrabothriidae (Eucestoda) Among Holarctic Alcidae (Charadriiformes): Resolution Of The Tetrabothrius Jagerskioeldi Cryptic Species Complex: Cestodes Of Alcinae—Provides Insights On The Dynamic Nature Of Tapeworm And Marine Bird Faunas Under The Stockholm Paradigm, Eric P. Hoberg, Kaylen Marie Soudachanh Oct 2021

Diversity Of Tetrabothriidae (Eucestoda) Among Holarctic Alcidae (Charadriiformes): Resolution Of The Tetrabothrius Jagerskioeldi Cryptic Species Complex: Cestodes Of Alcinae—Provides Insights On The Dynamic Nature Of Tapeworm And Marine Bird Faunas Under The Stockholm Paradigm, Eric P. Hoberg, Kaylen Marie Soudachanh

MANTER: Journal of Parasite Biodiversity

We begin resolution of the Tetrabothrius jagerskioeldi–species complex with descriptions of Tetrabothrius alcae n. sp. based on numerous specimens, primarily in murres (species of Uria), from the greater North Pacific basin and Tetrabothrius sinistralis n. sp. based on cestodes in guillemots (species of Cepphus) from the central Bering Sea and West Greenland. These tetrabothriids are characterized, among 44 species of Tetrabothrius in avian hosts, by attributes of the scolex, male and female organ systems, structure and dimensions of the vitelline gland, numbers of testes, configuration of the genital atrium, genital papillae and the male and female atrial …


The Aquatic Symbiosis Genomics Project: Probing The Evolution Of Symbiosis Across The Tree Of Life, Victoria Mckenna, John M. Archibald, Roxanne Beinart, Michael N. Dawson, Ute Hentschel, Patrick J. Keeling, Jose V. Lopez, José M. Martín-Durán, Jillian M. Petersen, Julia D. Sigwart, Oleg Simakov, Kelly R. Sutherland, Michael Sweet, Nick Talbot, Anne W. Thompson, Sara Bender, Peter W. Harrison, Jeena Rajan, Guy Cochrane, Matthew Berriman, Mara Lawniczak, Mark Blaxter Oct 2021

The Aquatic Symbiosis Genomics Project: Probing The Evolution Of Symbiosis Across The Tree Of Life, Victoria Mckenna, John M. Archibald, Roxanne Beinart, Michael N. Dawson, Ute Hentschel, Patrick J. Keeling, Jose V. Lopez, José M. Martín-Durán, Jillian M. Petersen, Julia D. Sigwart, Oleg Simakov, Kelly R. Sutherland, Michael Sweet, Nick Talbot, Anne W. Thompson, Sara Bender, Peter W. Harrison, Jeena Rajan, Guy Cochrane, Matthew Berriman, Mara Lawniczak, Mark Blaxter

Biology Faculty Articles

We present the Aquatic Symbiosis Genomics Project, a global collaboration to generate high quality genome sequences for a wide range of eukaryotes and their microbial symbionts. Launched under the Symbiosis in Aquatic Systems Initiative of the Gordon and Betty Moore Foundation, the ASG Project brings together researchers from across the globe who hope to use these reference genomes to augment and extend their analyses of the dynamics, mechanisms and environmental importance of symbiosis. Applying large-scale, high-throughput sequencing and assembly technologies, the ASG collaboration will assemble and annotate the genomes of 500 symbiotic organisms – both the “hosts” and the microbial …


The Bg News October 06, 2021, Bowling Green State University Oct 2021

The Bg News October 06, 2021, Bowling Green State University

BG News (Student Newspaper)

The BGSU campus student newspaper. October 06, 2021. Volume 101-Issue 7.


The Parthenon, October 6, 2021, Xena Bunton, Isabella Robinson, Madison Perdue, Abby Hanlon, Catherine Blankenship, Zach Hiser, Tyler Spence, Carter Truman, Tyler Kennett, Abby Ayes, Noah Hickman Oct 2021

The Parthenon, October 6, 2021, Xena Bunton, Isabella Robinson, Madison Perdue, Abby Hanlon, Catherine Blankenship, Zach Hiser, Tyler Spence, Carter Truman, Tyler Kennett, Abby Ayes, Noah Hickman

The Parthenon

No abstract provided.


Late-Season Nitrogen Applications Increase Soybean Yield And Seed Protein Concentration, Anuj Chiluwal, Erin R. Haramoto, David F. Hildebrand, Seth Naeve, Hanna J. Poffenbarger, Larry C. Purcell, Montserrat Salmeron Oct 2021

Late-Season Nitrogen Applications Increase Soybean Yield And Seed Protein Concentration, Anuj Chiluwal, Erin R. Haramoto, David F. Hildebrand, Seth Naeve, Hanna J. Poffenbarger, Larry C. Purcell, Montserrat Salmeron

Plant and Soil Sciences Faculty Publications

Low seed and meal protein concentration in modern high-yielding soybean [Glycine max L. (Merr.)] cultivars is a major concern but there is limited information on effective cultural practices to address this issue. In the objective of dealing with this problem, this study conducted field experiments in 2019 and 2020 to evaluate the response of seed and meal protein concentrations to the interactive effects of late-season inputs [control, a liquid Bradyrhizobium japonicum inoculation at R3, and 202 kg ha−1 nitrogen (N) fertilizer applied after R5], previous cover crop (fallow or cereal cover crop with residue removed), and short- and …


The Novel Orfv Protein Orfv113 Activates Lpa-P38 Signaling, Sushil Khatiwad, Gustavo Delho, Sabal Chaulagai, Daniel L. Rock Oct 2021

The Novel Orfv Protein Orfv113 Activates Lpa-P38 Signaling, Sushil Khatiwad, Gustavo Delho, Sabal Chaulagai, Daniel L. Rock

School of Veterinary and Biomedical Sciences: Faculty Publications

Viruses have evolved mechanisms to subvert critical cellular signaling pathways that regulate a wide range of cellular functions, including cell differentiation, proliferation and chemotaxis, and innate immune responses. Here, we describe a novel ORFV protein, ORFV113, that interacts with the G protein-coupled receptor Lysophosphatidic acid receptor 1 (LPA1). Consistent with its interaction with LPA1, ORFV113 enhances p38 kinase phosphorylation in ORFV infected cells in vitro and in vivo, and in cells transiently expressing ORFV113 or treated with soluble ORFV113. Infection of cells with virus lacking ORFV113 (OVIA82Δ113) significantly decreased p38 phosphorylation and viral plaque size. …


A Dedicated Flavin-Dependent Monooxygenase Catalyzes The Hydroxylation Of Demethoxyubiquinone Into Ubiquinone (Coenzyme Q) In Arabidopsis, Scott Latimer, Shea A. Keene, Lauren R. Stutts, Antoine Berger, Ann C. Bernert, Eric Soubeyrand, Janet D. Wright, Catherine F. Clarke, Anna K. Block, Thomas A. Colquhoun, Christian Elowsky, Alan C. Christensen, Mark A. Wilson, Gilles J. Basset Oct 2021

A Dedicated Flavin-Dependent Monooxygenase Catalyzes The Hydroxylation Of Demethoxyubiquinone Into Ubiquinone (Coenzyme Q) In Arabidopsis, Scott Latimer, Shea A. Keene, Lauren R. Stutts, Antoine Berger, Ann C. Bernert, Eric Soubeyrand, Janet D. Wright, Catherine F. Clarke, Anna K. Block, Thomas A. Colquhoun, Christian Elowsky, Alan C. Christensen, Mark A. Wilson, Gilles J. Basset

Department of Biochemistry: Faculty Publications

Ubiquinone (Coenzyme Q) is a vital respiratory cofactor and liposoluble antioxidant. In plants, it is not known how the C-6 hydroxylation of demethoxyubiquinone, the penultimate step in ubiquinone biosynthesis, is catalyzed. The combination of cross-species gene network modeling along with mining of embryo-defective mutant databases of Arabidopsis thaliana identified the embryo lethal locus EMB2421 (At1g24340) as a top candidate for the missing plant demethoxyubiquinone hydroxylase. In marked contrast with prototypical eukaryotic demethoxyubiquinone hydroxylases, the catalytic mechanism of which depends on a carboxylatebridged di-iron domain, At1g24340 is homologous to FADdependent oxidoreductases that instead use NAD(P)H as an electron donor. …


Faculty Spotlight: Sue Cooke ’94, ’04g, Biological Sciences, Kassidy Taylor Oct 2021

Faculty Spotlight: Sue Cooke ’94, ’04g, Biological Sciences, Kassidy Taylor

UNH Today Archive

No abstract provided.


Office Of Research, Economic Engagement And Outreach Update, October 6, 2021, Office Of Research, Economic Engagement And Outreach Oct 2021

Office Of Research, Economic Engagement And Outreach Update, October 6, 2021, Office Of Research, Economic Engagement And Outreach

Office of Research, Economic Engagement and Outreach

No abstract provided.


Equilibrium Calculations Of Iron Speciation And Apparent Iron Solubility In The Celtic Sea At Ambient Seawater Ph Using The Nica-Donnan Model, Kechen Zhu, Antony J. Birchill, Angela Milne, Simon Ussher, Matthew P. Humphreys, Nealy Carr, Claire Mahaffey, Maeve C. Lohan, Eric P. Achterberg, Martha Gledhill Oct 2021

Equilibrium Calculations Of Iron Speciation And Apparent Iron Solubility In The Celtic Sea At Ambient Seawater Ph Using The Nica-Donnan Model, Kechen Zhu, Antony J. Birchill, Angela Milne, Simon Ussher, Matthew P. Humphreys, Nealy Carr, Claire Mahaffey, Maeve C. Lohan, Eric P. Achterberg, Martha Gledhill

School of Geography, Earth and Environmental Sciences

No abstract provided.


The Student Movement Volume 106 Issue 3: ¡Levanta La Bandera!: Au Celebrates Hispanic Heritage Month, Heeyun Oh, Timmy Duado, Karenna Lee, Solana Campbell, Hannah Cruse, Steven Injety, Andrew Pak, Caralynn Chan, Nathan Mathieu, Sion Kim, Evin-Nazya Musgrove, Sung Been Han, Gloria Oh, Brendan Syto, Izzy Koh, Alyssa Henriquez Oct 2021

The Student Movement Volume 106 Issue 3: ¡Levanta La Bandera!: Au Celebrates Hispanic Heritage Month, Heeyun Oh, Timmy Duado, Karenna Lee, Solana Campbell, Hannah Cruse, Steven Injety, Andrew Pak, Caralynn Chan, Nathan Mathieu, Sion Kim, Evin-Nazya Musgrove, Sung Been Han, Gloria Oh, Brendan Syto, Izzy Koh, Alyssa Henriquez

The Student Movement v. 106 (2021-2022)

HUMANS

La Chula Mexican Market Food Truck Visits Andrews University for Hispanic Heritage Month, Interviewed by: Heeyun Oh

New Chapel Set Up with Student Chaplain Kevin Galeano, Interviewed by: Timmy Duado

Student Missionary Spotlight: Elizabeth Cisneros (senior, speech pathology), Karenna Lee

ARTS & ENTERTAINMENT

Hispanic Heritage Month in Song, Solana Campbell

Julio Cortázar y Continuidad de los parques ("Continuity of the Parks"), Hannah Cruse

The Hispanic Media Gap, Steven Injety

NEWS

A Glimpse Into AU's Club Fair, Andrew Pak

AFIA Throws Welcome Back Bash, Caralynn Chan

The History of Hispanic Heritage Month and AU Happenings Honoring the Holiday, Nathan Mathieu …


A Bioinformatic And Biochemical Analysis Of Cruciviruses, George William Kasun Oct 2021

A Bioinformatic And Biochemical Analysis Of Cruciviruses, George William Kasun

Dissertations and Theses

Cruciviruses are novel ssDNA viruses discovered through metagenomics and direct environmental DNA amplification and cloning. The genomes of cruciviruses suggest that gene transfer between RNA and DNA viruses occurred due to the presence of putative protein-encoding genes that are homologous to both ssRNA and ssDNA viruses. In order to gain a better understanding of this group of viruses both bioinformatic analyses and in vitro biochemical experiments were employed. The results of the bioinformatic analyses show that cruciviruses are a highly diverse group of ssDNA viruses. Their placement within established ssDNA phylogenies is difficult due to heterogeneity in their putative replication-associated …


Purification And Initial Biochemical Characterization Of Atp:Cob(I)Alamin Adenosyltransferase (Eutt) Enzyme Of Salmonella Enterica, Nicole R. Buan, Jorge C. Escalante-Semerena Oct 2021

Purification And Initial Biochemical Characterization Of Atp:Cob(I)Alamin Adenosyltransferase (Eutt) Enzyme Of Salmonella Enterica, Nicole R. Buan, Jorge C. Escalante-Semerena

Department of Biochemistry: Faculty Publications

ATP:cob(I)alamin adenosyltransferase (EutT) of Salmonella enterica was overproduced and enriched to ~70% homogeneity, and its basic kinetic parameters were determined. Abundant amounts of EutT protein were produced, but all of it remained insoluble. Soluble active EutT protein (~70% homogeneous) was obtained after treatment with detergent. Under conditions in which cobalamin (Cbl) was saturating, Km(ATP) = 10 μM, kcat = 0.03 s–1, and Vmax = 54.5 nM min–1. Similarly, under conditions in which MgATPwas saturating,Km(Cbl)= 4.1μM, kcat = 0.06 s–1, andVmax …


A Comprehensive Antiracist Framework For Slhs Education: A Sample Curriculum Related To Arab American Populations, Reem Khamis-Dakwar Oct 2021

A Comprehensive Antiracist Framework For Slhs Education: A Sample Curriculum Related To Arab American Populations, Reem Khamis-Dakwar

Teaching and Learning in Communication Sciences & Disorders

Black, Indigenous, and People of Color (BIPOC) students in higher education programs in Speech, Language, & Hearing Sciences (SLHS) experience structural racism, entering a majority white profession, while confronting social inequalities in their personal and professional communities. A vision of an antiracist decolonized antiracist curriculum enhances the integration of BIPOC students in academic programs in the field, while also facilitating the preparation of non-BIPOC students to meet the needs of a growing and diverse community of individuals with communication disorders. Such a curriculum must be comprehensively designed to include pedagogy, community-based, and research based educational activities, and to adequately prepare …


The Power Of Faculty: Transformative Agents Of Change For The Profession, Lekeitha R. Morris, Monica L. Bellon-Harn Oct 2021

The Power Of Faculty: Transformative Agents Of Change For The Profession, Lekeitha R. Morris, Monica L. Bellon-Harn

Teaching and Learning in Communication Sciences & Disorders

The lack of racial diversity in the profession is problematic for the families we aim to serve. The goal of this paper is to address some of the ways in which CSD departments can contribute to increasing the number of speech-language pathologists and audiologists of color. This manuscript proposes that faculty are a source of fundamental change and progress toward anti-racism in CSD profession. We will (a) describe strategies for creating equity within the course syllabi, content and classroom interactions (b) offer suggestions on next steps beyond the classroom and (c) highlight ways to maximize success through departmental initiatives.


Evaluation Of Asthma Control In Patients With And Without Sinonasal Polyps Following Treatment With Biologic Agents, Prachi Patel, Chandala Chitguppi, Md, Alan Gandler, Md, Kira Murphy, Md, Tawfiq Khoury, Md, Stephanie Bork, Crnp, Pamela Monostra, Pa, Elina Toskala, Md, Phd, Mindy Rabinowitz, Md, Marc Rosen, Md, Gurston Nyquist, Md, Jessica Most, Md Oct 2021

Evaluation Of Asthma Control In Patients With And Without Sinonasal Polyps Following Treatment With Biologic Agents, Prachi Patel, Chandala Chitguppi, Md, Alan Gandler, Md, Kira Murphy, Md, Tawfiq Khoury, Md, Stephanie Bork, Crnp, Pamela Monostra, Pa, Elina Toskala, Md, Phd, Mindy Rabinowitz, Md, Marc Rosen, Md, Gurston Nyquist, Md, Jessica Most, Md

The Medicine Forum

Background: The effects of biologics on severe asthmatics with chronic rhinosinusitis with sinonasal polyposis (CRSwNP) have not been well established. This study evaluates overall control of asthma in patients with and without sinonasal polyps following initiation of biologics therapy.

Methods: Retrospective review of patients with asthma treated with a biologic agent (benralizumab, omalizumab, dupilumab, mepolizumab) and CRSwNP. Charts were assessed for ACT scores at time of biologic enrollment and at 4-7 months.

Results:82 patients met inclusion criteria; 42 (52.5%) patients with asthma and 40 (47.5%) with concurrent sinonasal polyps. The average ACT score for the non-polyp cohort was 13.16 …


The Behaviors Of A Captive Father-Daughter Pair Of Ateles Geoffroyi Geoffroyi, Felicia Gordian Oct 2021

The Behaviors Of A Captive Father-Daughter Pair Of Ateles Geoffroyi Geoffroyi, Felicia Gordian

The Pegasus Review: UCF Undergraduate Research Journal

The Central Florida Zoo and Botanical Gardens intends to introduce new members to the black-handed spider monkeys (Ateles geoffroyi geoffroyi) enclosure. The behavioral analysis of captive animals within their human-made zoo environments is pertinent information for zookeepers before such an introduction can be made. To contribute to that goal, this study observed the behaviors of a father-daughter pair of black-handed spider monkeys. This study observed their vocalizations, habitat utilization, enrichment utilization, conspecific interactions, and interactions with humans to better understand how they interact with their environment as well as their group dynamics. This behavioral baseline can then be utilized to …


Centering The Activity Of Writing: Designing Writing Tasks For The Introductory Creative-Writing Classroom, C. Connor Syrewicz Oct 2021

Centering The Activity Of Writing: Designing Writing Tasks For The Introductory Creative-Writing Classroom, C. Connor Syrewicz

Journal of Creative Writing Studies

In this paper, I argue that writing tasks (assignments, exercises, prompts, activities, etc.) are one of the best tools we have to teach our students how to perform the activity of writing more effectively. Contemporary creative writing instructors tend to be suspicious of writing tasks, and I argue that this suspicion is a largely result of the predominantly “text-centered” view of writing instruction that prioritizes teaching students “textual knowledge” above all else. Following others, I call for placing a much greater pedagogical emphasis upon the process of producing texts, and I argue that this can only be accomplished by centering …


Writing Here, Writing Now; Making Sense Of It All: Examining Cultural And Historical Context In The Introductory Creative Writing Class, Oindrila Mukherjee Oct 2021

Writing Here, Writing Now; Making Sense Of It All: Examining Cultural And Historical Context In The Introductory Creative Writing Class, Oindrila Mukherjee

Journal of Creative Writing Studies

Writers are a product of their environment. The time and place in which they live inevitably impact what they write, why they write, and how they write. I assign a brief reflection essay in my Introduction to Creative Writing class which asks students to consider social, historical, and cultural factors that influence the poetry, fiction, or nonfiction they write, either directly or indirectly. It encourages students to identify patterns in their writing, and to reflect on what it means to live in a specific part of the world at a specific time in history. This makes them more aware of …


Development Of Technology For Producing Food Sweeteners From Stevia And Their Immunomodulating Effect, Isomiddin Bobaev, Маrkhаbоhон Makhmudova, Makhbuba Alimova, Alimdjan Sadikov, Shamansur Sagdullaev Oct 2021

Development Of Technology For Producing Food Sweeteners From Stevia And Their Immunomodulating Effect, Isomiddin Bobaev, Маrkhаbоhон Makhmudova, Makhbuba Alimova, Alimdjan Sadikov, Shamansur Sagdullaev

CHEMISTRY AND CHEMICAL ENGINEERING

The aim of the study is to develop a technology for the production of food sweetener from stevia (Stevia rebaudiana Bertoni) - a plant of the Asteraceae (Compositae) family, cultivated in Uzbekistan using alcohol extracts. Diterpene glycosides were isolated from the extract - stevioside (1), rebaudioside A (2) and other biologically active substances. Pharmacological studies in mice have shown the presence of an immunostimulating effect in the alcoholic extract and in the individual diterpene glycoside, stevioside (1).


Nitrogen Fertiliser Effects On Perennial Ryegrass Nutritive And Nitrate Content During The Cool Season, Joseph L. Jacobs, Frank R. Mckenzie Oct 2021

Nitrogen Fertiliser Effects On Perennial Ryegrass Nutritive And Nitrate Content During The Cool Season, Joseph L. Jacobs, Frank R. Mckenzie

IGC Proceedings (1977-2023)

A study was undertaken to determine the effects of differing levels of nitrogen (N) application (0 (N1), 25 (N2), 50 (N3) and 75 kgN/ha (N4)) during late autumn (T1), early (T2) and late winter (T3) on the nutritive characteristics and nitrate content of perennial ryegrass. Changes in crude protein (CP) for all treatments at each application time were similar irrespective of level of N application. At the commencement of all treatments, the existing CP content was highest in N3, followed by N2, N1 and N0. Nitrate content decreased throughout T1 primarily due to dry conditions, whilst during T2, levels for …


Nitrogen Concentration In Cell Wall Of Warm-Season Perennial Grasses, G. F. C. Lima, Lynn E. Sollenberger, J. E. Moore Oct 2021

Nitrogen Concentration In Cell Wall Of Warm-Season Perennial Grasses, G. F. C. Lima, Lynn E. Sollenberger, J. E. Moore

IGC Proceedings (1977-2023)

The objectives of this experiment were to evaluate the influence of N fertilizer, age of regrowth, and season on concentration of N in cell-wall fractions of three warm-season perennial grasses (limpograss, [Hemarthria altissima (Poir.) Stapf et C.E. Hubb.], bermudagrass [Cynodon spp.], and bahiagrass [Paspalum notatum Flügge]. The herbage neutral detergent insoluble nitrogen (NDIN) fraction composed almost half of total N in these grasses. Though acid detergent insoluble nitrogen (ADIN) concentrations generally were 80 g kg-1 of total N or less, this fraction is indigestible and unavailable and composes a significant portion of a nutrient that may …