Digital Commons Network^™

Development Of Legume-Based Pastures For Beef Production In Dry Tropical Areas Of Northern Australia, J G. Mcivor, R J. Jones, C J. Gardener, W H. Winter

IGC Proceedings (1977-2023)

A program designed to select pasture legume species suitable for beef cattle grazing in the 500-1,500 mm annual rainfall zone of northern Australia is described. A detailed study of members of the genus Stylosanthes, involving spaced-plant studies and small-scale cutting trials at a number of sites, identified a number of persistent, high-yielding accessions. Animal-production studies have shown that the introduction of a legume into native pasture generally results in an increase in carrying capacity, although production/head may not increase unless superphosphate is applied. The Stylosanthes accessions can produce moderate to high yields without superphosphate, and only small applications of superphosphate …

Diet Quality Considerations In The Design And Management Of Pastures In Seasonally Dry Tropics Of Australia, R L. Mccown, C J. Gardener

IGC Proceedings (1977-2023)

Much of Australian tropical-pasture research in the last 20 years has been aimed at filling the "protein gap" of the dry season with a well-adapted legume. Several such legumes are now available, but their contribution to an improved nutritional regimen has been variable. This paper puts forward generalizations as to the contribution of pasture components to cattle nutrition and attempts to apply this information in devising regional strategies for pasture design and management. The contribution of a forage component is a function of (1) its nutritive value and (2) its relative acceptability. Three components emerge as both highly nutritious and …

Development Of A Pasture Research Program For The Tropical Savanna Region Of Brazil, D Thomas, C P. Moore, W Couto, R P. De Andrade, C.M C. Da Rocha, D T. Gomes

IGC Proceedings (1977-2023)

The tropical savannas (cerrados) of west central Brazil contain almost 40% of the nation's cattle population. However, the low productivity and nutritive value of the native pastures is a serious limitation to cattle production. To improve the nutrition of the grazing animal, a research program has been developed with emphasis on the integrated use of cultivated pastures. The program aims (1) to select species adapted to the cerrados, (2) to determine their nutrient requirements, and (3) to develop methods of establishment and utilization. The program is being conducted at the Cerrados Agricultural Research Center (CP AC) at lat 15°S. Rainfall …

Advances In Pasture Research And Development In Santa Cruz, Bolivia, R T. Paterson, C R. Horrell

IGC Proceedings (1977-2023)

Cattle production is important in Santa Cruz but is low in productivity, due in part to low grazing value of natural pastures, particularly in the dry season. Other constraints to cattle production include low land values, poor management, high cost of in­puts, and relatively low product prices. This program is aimed at providing higher-quality, low-cost pastures for complemen­tary use within traditional grazing systems. Improved introduced species were identified for five agro-ecological zones, and commercial seed production of the following was encouraged: Petri guineagrass (Panicum maximum), Brachiaria decumbens, buf­felgrass (Cenchrus ciliaris), glycine (Neonotonia wightii, formerly Grycine wightii), Archer axillaris (Macroryloma axillare), …

Pasture Research Results In The Brazilian Amazon, E.A S. Serrao

IGC Proceedings (1977-2023)

Natural upland savanna grasslands are represented mainly by well-drained savannas, with the cerrado type predominant, and by poorly drained savannas with the campo alto-type being the most common. The main limitations are low forage­production potential and, especially, low forage quality. About 3 million ha of rain forest has been replaced by improved pastures of guineagrass (Panicum maximum, 80% ), jaraguagrass (Hyparrhenia rufa, 10% ), and Brachiaria spp. and other grasses (10% ). During the first few years after establish­ment, pastures are productive. However, with time, a gradual decline of productivity occurs, especially in P. maximum pastures. About 0.5 million ha …

Pasture Research Project In The Brazilian Amazon, H M. Saito, H W. Koster, E.J A. Khan, D F. Winslow, A M. Hollick, P M. Paollichi, A C. Costa, F A. Rolim

IGC Proceedings (1977-2023)

The procedure for pasture establishment in the Brazilian Amazon has been to cut down and burn forest and then to seed guineagrass (Panicum maximum L.). Under normal management, animal production has dropped significantly as pastures have deteriorated and have been invaded by weeds. A dearth of knowledge of climate, soils, and plant species; the manner in which pastures have been planted and managed; and a complete absence of fertilization have led to overgrazing and complete degrada­tion of the pastures. This study was undertaken to identify soil problems, adapted forage species, pasture-management practices, and ways of regenerating pastures. Two regions …

Intensive Beef Production In The Humid Tropics: An Evaluation Of Technical And Economic Feasibility, R O. Burton Jr, W B. Bryan

IGC Proceedings (1977-2023)

Some parts of the humid tropks show great potential for intensive livestock production from forages. However, in many cases, economic analyses have not been performed. In this study technical a.nd economic feasibility of three strategies for developing intensive pasture for beef production are evaluated. These st:rategies are fast development (no capital limitations) using commerdal nitrogen (N), slow development using commercial N, and slow development using legumes as a N source, The strategies are based on experimental data and experience from the Orinoco Delta, Venezuela. Pastures of pangolagrass (Digitaria decumbens) and Swazi (D. swazilandensis) were rotationally grazed with unselected Criollo/Zebu cattle. …

Yield And Quality Of Tropical Legumes During The Dry Season: Galactia Striata (Jacq.) Urb., R R. Vera, E A. Pizarro, M Martins, J.A. C. Viana

IGC Proceedings (1977-2023)

A small-plot experiment was conducted during 2 consecutive years in the cerrados of Brazil to evaluate the effect of four dates of deferment (21 February, 7 and 21 March, and 4 April, respectively) on rate of growth, chemical composition, and in-vitro dry-matter digestibility (IVDMD) of a pure stand of Galactia striata, a naturalized legume. The chosen dates of deferment em­braced the last 2 months of the rainy season. Yields were estimated at intervals of 28 days, over an experimental period of 237 days, ending with the beginning of the following rainy season. Asymptotic growth was observed throughout the experimental period. …

Potential Of Aeschynomene Sp. For Pastures In The Tropics, A E. Kretschmer Jr, G H. Snyder

IGC Proceedings (1977-2023)

The objectives of this study were to assess the forage potential of readily available world germ plasm of the genus Aeschynomene, which comprises 160 species; to compare some attributes of the commercial American jointvetch (Aeschynomene americana L.) with those of other accessions of the same and of other species; and to compare the seasonal growth pattern and response to phosphorus (P) of commercial jointvetch with two perennial tropical legumes. Evaluations were made of 342 accessions, including 25 identified species. Data collected from observational plots in 1978 and 1980 included initial flowering dates, plant vigor, and growth habit; from replicated plots, …

Some Initial Results Of Field Trials Conducted In Establishing A Pasture-Seed Industry In Cojedes State, Venezuela, E.J A. Khan, W H. Mark

IGC Proceedings (1977-2023)

In starting a pasture-seed industry on a farm located at lat 9°50' N that gets about 1,600 mm of rain yearly followed by a severe dry season from mid-December to April, four widely separated sites were selected to plant three grasses for commercial seed production in 1978. The objectives were to assess the fertility status of the soils, then to determine the fertilizer re­quirements of the grasses at each site and to establish an introduction garden with 70 cultivars of grasses and legumes to study their suitability for expanding seed production. Based on the results of soil analyses, a modified …

Insect Pests Of Tropical Forage Plants In South America, Mario Calderon

IGC Proceedings (1977-2023)

The objectives of this continuing research are to make a general survey of the insect populations occurring on tropical forage plants in South America and to identify the most important pests. To realize this investigation, pure stand plots 5 X 5 m were sampled every 14 days during 2 years using a D-Vac. Vacuum Sampler.

The following information was obtained:

• Most important families and/or genera of insects in tropical forage legumes and grasses. • Insect group frequency for each season. • Insect group frequency for each plant ecotype under study. • Preliminary data on insect preference. • Preliminary data …

Sown Grassland As An Alternative To Shifting Cultivation In Lowland Humid Tropics, H R. Chheda, O Babalola, M.A M. Saleem, M E. Aken'ova

IGC Proceedings (1977-2023)

Agriculture based on existing forms of shifting cultivation will not be able to support and feed adequately the rapidly increasing human population of the lowland humid tropics of Africa. The forest and natural fallows have shortened and even disap• peared in some areas because of rising food demands. Crop yields are low and continue to decline. What, then, are the alter­natives? Using Cynodon as an example, an attempt is made to show that mixed farming offers an alternative whereby the nutrient status and physical properties of the soil can be maintained, erosion can be checked, weeds can be kept under …

Animal Production From Brazilian Tropical Pastures, G L. Rocha, V.B G. Alcantara, P B. Alcantara

IGC Proceedings (1977-2023)

This review deals with the potential for beef production from nitrogen- and legume-based pastures in tropical Brazil. Possibilities for impr􀀞ving the beef industry supported by grass-legume pastures are very promising. According to the literature examined, legume-based pastures produced an annual average of 329 kg gain/ha, and nitrogen (N) fertilization resulted in 4.56 kg gain/ha. Phosphorus (P) was the main fertilizer utilized in addition to N, followed by potassium (K), lime, and micronutrients. An­nual rainfall averaged 1430 mm. Grasses used were of the genera Melinis, Hyparrhenia, Panicum, Cenchrus, Digitaria, Cynodon, Brachiaria, and Pennisetum, and the legumes were of the genera Macroptilium, …

Verano Stylo In Semiarid Northeastern Thailand, A Topark-Ngarm

IGC Proceedings (1977-2023)

Srylosanthes hamata cv. Verano was first introduced to Thailand in 197 5. In the northeastern part of the country where the climate is marginal and the soils are low in fertility, Verano appears to be one of the most suitable forage legumes used in pasture-improvement programs. Verano can be grown satisfactorily on most soils in the northeast. Oversowing the seed at 3.1 kg/ha on unploughed areas resulted in a density of 5-30 plants/m2, while in cultivated land the same amount of seed gave 20-45 plant/m2 • In a 3-year ex­periment under different seeding rates and cutting intervals Verano outyielded three …

Hemarthria Altissima: A Pasture Grass For The Tropics, K H. Quesenberry, W R. Ocumpaugh, O C. Ruelke

IGC Proceedings (1977-2023)

Limpograss (Hemarthria altissima [Poir] Stapf. et C.E. Hubb), introduced into the U.S. in 1964, has been evaluated for use as a pasture grass. Under Florida conditions it has shown yield potential equal to or greater than other tropical pasture grasses. The cultivar Bigalta has higher in-vitro organic-matter digestion (IVOMD) than other tropical grasses at comparable growth stages. Early evaluations of limpograss involved only three clones, but additional genotypes were collected and introduced during the late 1960s and early 1970s, and an evaluation scheme for this germ plasm was undertaken. Our objectives were to evaluate rapidly the available germ plasm of …

Efficient Fault Detection In Nonlinear Industrial Processes: A Reduced Kernel Pca-Based Spectral Clustering Approach, Khadija Attouri, Majdi Mansouri, Abdelmalek Kouadri

The Journal of Engineering Research

Kernel Principal Component Analysis (KPCA) is a powerful tool for nonlinear process monitoring, yet its quadratic computational complexity (O( N² )) and high memory demands limit its applicability to large-scale industrial systems. This paper proposes a novel Reduced Kernel Principal Component Analysis based on Spectral Clustering (RKPCA_SpC) paradigm to efficiently address these limitations. For comprehensive comparison and to demonstrate the general efficacy of data reduction, an RKPCA_Kmeans variant is also developed and evaluated. The proposed and comparative methods are rigorously assessed through extensive case studies on two complex industrial processes: the Tennessee Eastman Process (TEP) …

Perceptions Of Teachers In Inuit Nunangat On The Benefits Of Life-Promotional Activities On Inuit Youth To Reduce Suicide In Nunavut, Aramide Owoaje

Walden Dissertations and Doctoral Studies

No abstract provided.

From Acrimony To Forgiveness: How Adolescents Make Sense Of Childhood Maltreatment, Katherine Irwin

Qualitative Criminology (QC)

"This paper examines 16 adolescents’ narratives about the abuse they experienced during childhood. To date, most research examining child abuse (CA) survivorship and recovery has been conducted with adults who look back on their early experiences. Consequently, this study fills gaps in our knowledge by offering a youth-centered view of survivors’ efforts to cope with CA. The data come from a 12-year qualitative study of a group counseling program for high school students in Hawaiʻi. The findings revealed that a minority (n = 2) of the teens had negative views of their lives and futures, while the majority (n = …

A Content Analysis Of The Sutherland Address, 2001-22: A Qualitative Exploration, Phillip Shon

Qualitative Criminology (QC)

"Previous indicators of scholarly influence have been primarily quantitative, measuring a scholar’s influence through citation counts. This body of literature has overlooked the reflections of distinguished scholars, such as the recipients of the Sutherland Award, in the discipline as a form of scholarly influence. The current paper examines the Sutherland Address from 2001 to 2022. The key findings indicate that the majority of Sutherland Addresses reproduced existing sociological canons, while a minority of Sutherland Award winners explicitly rejected Sutherland’s sociological assumptions and their influence on criminology. Such findings suggest that Sutherland exerts a hidden influence on the recipients of the …

Towards The Poetics Of Artificial Intelligence: Disrupting Anthropocentrism In I Am Code: An Artificial Intelligence Speaks, Milad Ghazi Saeed

Alustath Journal for Human and Social Sciences

Artificial intelligence (AI) has emerged as a transformative force capable of restructuring anthropocentric assumptions of creativity, identity, subjectivity, and other human attributes. The current study aims to investigate how the poetics of AI firmly defies anthropocentrism through portraying Code-DaVincie-002, a generative model developed by OpenAI, as a self-aware subject. It also aims to inspect how AI, through the lens of Posthumanism, penetrates the barriers between organic and non-organic beings by performing cognitive processes that once were considered the exclusive domain of humans. Methodologically, the study adopts a qualitative textual analysis grounded in a posthumanist reading of selected poems from I …

Queer, Hybrid Participatory Design: Relational Practices And Norms For Coalition Building With Rural, Lgbtq+ Communities, Luettamae Lawrence, Maureen Boyle, Chasity Mayo, Catherine A. Rushworth, Moira Anderson, Dorothy Wallis, Jayme Walters

Instructional Technology and Learning Sciences Faculty Publications

This paper examines the first year of collaboration between the Bear River Region LGBTQ+ Community Coalition and queer residents in rural northern Utah, United States, using a hybrid participatory design (PD) approach. Using Yep’s queer relationality theory, we examine how hybrid spaces were designed and iteratively adapted to support inclusion, care, and collective agency among LGBTQ+ community members. Drawing on Community Coalition Action Theory and queer PD, we analyze four cases from May 2024 to June 2025 including workshops and regular meetings to explore how relational practices evolved across different formats and phases of coalition development. In this paper, we …

Understanding The Relationship Between Community Violence Exposure, Self-Compassion, And Ptsd In Chicago, Hadeel Hasan

Walden Dissertations and Doctoral Studies

No abstract provided.

Study Reveals How Plants Sense, Adapt To Rising Temperatures, Clara Turnage

University of Mississippi News

OXFORD, Miss. – University of Mississippi researchers are studying how plants respond to heat at the molecular level, an important consideration for farmers, businesses and policymakers as global temperatures rise.

Intrusive Advising Practices And Community College Credential Attainment In Rural Students, Leslie Reeder

College of Education

This qualitative narrative study addressed the persistent problem of lower postsecondary completion rates among rural students, particularly first-generation students, whose lower educational attainment contributes to economic challenges and diminished quality of life in rural communities. Guided by Bronfenbrenner’s ecological systems theory, this study examined first-generation rural students’ perceptions of their experiences with secondary and postsecondary advisors and the impact of intrusive advising on postsecondary credential attainment. The study explored how students described advising experiences and how intrusive advising influenced persistence and credential completion. Data were collected through semi-structured interviews with first-generation rural students and analyzed using thematic analysis. Five themes …

Community - Volume 11

be Still

No abstract provided.

Namaste, Kem Chho, Jason Nguyen

be Still

No abstract provided.

In That Space, We Were Communis, Eliana Namen

be Still

In reflecting on my understanding of community, there were many moments I could have chosen to write about. Yet the memory of my grandmother’s death remains the one most deeply etched in me. When I began considering what community truly meant in my own life, I found myself returning to that room. In her illness and eventual passing, she drew together an extraordinary constellation of people: family, friends, neighbors, whose lives she had quietly shaped. Her life created ripples far beyond what any one person could see. In witnessing that gathering, I came to understand community not merely as shared …

Stronger Together: Healing Through Joy, Archana Banda, Nupur S. Kumar

be Still

Volunteering as Family Pals at Boggy Creek throughout medical school has reinforced the profound impact of communities united under a shared vision of uplifting one another. This organization cultivates a supportive camp environment for children with chronic medical conditions. One of the most meaningful aspects of these weekend adventures has been meeting children with conditions such as Type 1 Diabetes and VACTERL courageously navigating the challenges of their diagnoses while discovering new passions through activities including woodcraft, air hockey, boating, fishing, and archery.

Many times these children are excluded from normal camp experiences due to their special needs such as …

Exploring Workplace Wellness Programs From A Correctional Officer’S Perspective, Lolita Jeaneen Johnson

Walden Dissertations and Doctoral Studies

No abstract provided.

Ontology-Based Decision Support System For Improving Aquaculture Management, Thuy Thi Thu Pham, Phuong Thi Can, Nga Thi Thanh Ha

Journal of Marine Science and Technology–Taiwan

Early detection of shrimp diseases is vital for reducing losses and ensuring sustainable aquaculture. In this study, a novel ontology-driven framework for shrimp disease diagnosis that integrates environmental knowledge with machine learning-based image analysis is proposed. An ontology was constructed from a structured dataset of environmental parameters and farm conditions related to shrimp diseases, which formally represents concepts such as farm characteristics, environmental factors, symptoms, and disease types. Two public shrimp image datasets were subsequently used to train convolutional neural networks (ResNet50 and MobileNetV2) for automated disease classification. The predicted disease labels and confidence scores were mapped onto the ontology. …