Digital Commons Network^™

Tillering In Irrigated Smooth Bromegrass (Bromus Inermis Leyss.) As Affected By Elongated Tiller Removal, James W. Krause, Lowell E. Moser

IGC Proceedings (1977-2023)

A two-year field study at Mead, Nebraska, USA, showed that subsequent tillering was generally increased when 33, 67, and 100% of the elongated tillers were removed in Lincoln smooth bromegrass (Bromus inermis Leyss.). Apical dominance was apparently reduced when elongated tillers were removed and as a con­sequence new tillers elongated. If irrigated smooth bromegrass is grazed in the spring so about 67 % or more of the elongated tillers are removed and subsequent tillering will be in­creased. By removing only 67 % or slightly more of the tillers, remaining leaf area could supply carbohydrates to the small developing tillers.

Net Assimilation And Longevity Of Alfalfa Stands, R A. Moore

IGC Proceedings (1977-2023)

Stand reduction in established fields of alfalfa (Medicago sativa L.) has often been observed. This may be related to an increase in non­photosynthetically active tissue, causing respi­ration to exceed photosynthesis. Net carbon dioxide exchange rate (NCE) per unit leaf area and rate of respiration per gram of forage were determined from plants grown under field conditions. The uptake and evolution of carbon dioxide per plant were measured. The data suggest that the greater root mass of 2-year-old plants does add considerably to the evolution of carbon dioxide by the plant.

Some Results Of Studies On Correlations Between The Size Of The Assimilating Area And The Biomass Production In Medicago Sativa L. And Trifolium Pratense L., F Hrabe

IGC Proceedings (1977-2023)

The dependence of the biomass production upon the size of the assimilating area of Medicago sativa L. and Trifolium pratense L. was confirmed. However, this dependence was not linear in all the cuttings; in Medicago sativa and tetraploid Trifolium pratense the opti­mum values of the leaf area index (LAI) were 5 to 6 m2/m2 and 4 to 5 m2 /m2, respectively. In the second cutting, the highest production of both species was obtained when LAI was smaller by 1 m2/m2 than that of the first cutting. In M. sativa and tetraploid T. pratense the maximum assimilating area (leaves and stems) …

Morphological Characters Associated With Productivity Of Tall Fescue, C J. Nelson, D A. Sleper

IGC Proceedings (1977-2023)

Number of tillers and yield/tiller of tall fescue were similar in their association with forage yield, but were negatively correlated (r = -0.21 **) with each other. Area ofli:3f 6, which was correlated with leaf area expansion rate (r = 0.81 **), was correlated higher with yield/tiller (r = 0.58**) than with tiller number (r = -0.16*). Seeding characters were not strongly associated with number of tillers. In continental climates cool-season forage grasses produce most of their yield during the reproductive growth phase. In order to improve summer and fall productivity we are investi­gating development of the vegetative canopy. RHODES …

The Effect Of Changes In Crop Structure On Photosynthesis, Dry Matter Production, And Chemical Composition Of Lolium Perenne, L Sibma, W Louwerse

IGC Proceedings (1977-2023)

To study the effect of changes in leaf position in perennial ryegrass during the growing season, the leaf position was changed with wide­meshed wire netting in field and greenhouse experiments. CO2 measurements with a mobile unit showed that changing the leaf position from erecto­phile to planophile decreased the carbohydrate production by 30 %, and that proportional recovery of the production occurred when the leaves were replaced in the original erecto­phile position. Throughout a single growing period the nega­tive effect of a planophile leaf position on dry matter production above ground was 10% at the highest. This was associated with lower …

Influence Of Cutting Frequency On Quantity And Quality Of Root Matter Of Different Grasses After Two Years Of Utilization, J Stuczynska, S Jakubowski

IGC Proceedings (1977-2023)

The effect of cutting date and cutting frequency on the formation of the root system of several forage grasses was investigated in experiments over several years. The grass species differed in their response. Best tolerance of cutting was found in Festuca arundinacea, with Dactylis glomerata and Phalaris arundinacea ranking second and third, respectively. Bromus unio­loides was the most susceptible species. The amount of nitrogen contained in the dry matter decreased, for example in Dactylis, as the number of cuts increased. The mineral content of stubble and roots tends to increase as the cutting frequency goes up.

Trends Of Development In The Production Of Artificially Dried Feeds, M A. Smurygin

IGC Proceedings (1977-2023)

In recent years, many countries have seen trends towards specialization and enlargement of pro­duction units and transition to industrialized livestock farming technologies. New techno­logies are being prepared for feeding and industrialized feed production. The production of artificially dried feeds, including pellets and wafers, is going up continuously. The produc­tion of such feeds allows to cut nutrient losses to half and even one third as well as to accomplish mechanization and automation of feed production and feed distribution. Wider use of finished feeds in pelleted and wafered form, hence, will be instrumental to more requirement-oriented feeding and to maximiz­ing livestock production. …

Problems Of Modern Management Of Mountain Grassland, Jan Caputa

IGC Proceedings (1977-2023)

The importance of grassland does increase with the progression of latitude towards the polar circles, and with rising altitude. The potential of grass production is estimated to about 55 kg dry matter or 4 kg meat (live weight)/ha per day of growth. The develop­ment of management in mountain grassland does not keep the same rhythm as in the lowland. The modernization of mountain grass­land utilization should especially take into consideration the following points :

-Separation of lands being suitable or unsuit­able for agricultural purposes;

-Careful preservation for agricultural use of grassland areas suited for mechanized harvest of forage for winter …

Grazing Values Of The Boreal Forest And Tundra Regions, William L. Pringle

IGC Proceedings (1977-2023)

Grazing values of the Boreal forest and tundra regions of our world offer a tremendous future potential for the production of red meat. One of the only means we have of efficiently utilizing our northern lands is by grazing animals -that are able to forage over extensive areas. The Boreal forest and tundra biomes of the world occupy about 2. 3 billion ha. This area is equal to 85 % of the total potential arable area of the earth's surface. By far the largest portion occurs in the U.S.S.R. which has 1.2 billion ha of forest and 321 million ha …

The Intensification Off Forage And Livestock Production In Sub-Tropical Areas, L R. Humphreys

IGC Proceedings (1977-2023)

Options available for the intensification of forage production in sub-tropical areas are contrasted. Research on the removal of inedible species, the provision of stock-drinking water, the control of stocking rate and the incor­poration of well-adapted pasture legumes should receive priority. Approaches to maintaining continuity of forage supply and legume per­sistence are discussed.

The Importance Of Ley Farming For Improving The Forage Basis Of Tropical Africa, V A. Oyenuga

IGC Proceedings (1977-2023)

The concept and practice of including short­duration pasture mixtures or leys in agricultural rotations, particularly for intensive livestock production, are of recent development in tropical Africa. Although mixed farming -the keeping of animals for farm work, producing farmyard manure for the maintenance of soil fertility, and rearing of dairy cows to produce milk for household use - was first introduced as an organized system of settled farming in Nigeria in 1922, intensive animal husbandry, based on intensively maintained pasture mix­tures, be it on a small or large scale, is still in the process of widespread development in many parts of …

The Grassland Of Africa: Classification, Production Evolution And Development Outlook, H N. Le Houerou

IGC Proceedings (1977-2023)

Grasslands in the broader meaning, i.e. grazing lands, occupy huge areas in Africa, prob­ably in the vicinity of 10 million km2 (1000 million hectares), of which some 800 million hectares of permanent pastures and 200 mil­lion hectares of grazed woodland and open forest. There are also some 210 million hectares of crops and fallows most of which are grazed for part of the annual cycle. These African grasslands thus represent 7.5 % of the world's total land surface and 1/3 of its total acreage of grassland; they also corre­spond to 33 % of the surface of the continent, the remainder …

Pasture Possibilities In The Tropics, Fernando Perez Infante

IGC Proceedings (1977-2023)

Frnm an academic viewpoint, only biological aspects of pasture possibilities in the Tropics are considered in this paper. In spite of being an important . part of these possibilities, no mention would be made of a fundamental aspect, i.e. the one related to the people living in the Tropics and the ways in which they could make use of the potentials offered by their pastures to improve their living conditions. Thus when we come to consider "possibilities", it is not only a question of solving technical problems, but there are also economic and cultural factors which must be kept in …

Management Of Arid Pastures, Cyrus M. Mckell, Don D. Dwyer

IGC Proceedings (1977-2023)

Arid pasture, natural grazing land, or rangeland are synonymous terms used to describe the extensive areas of open, non-cultivated arid lands over which domestic livestock and wildlife roam in search of feed. These lands are characteristically low in productivity and if managed, the level of management is extensive and based on ecological principles. The term rangeland originated in the United States of America and is gradually gaining usage in other countries to differentiate between intensively managed pastures of humid and sub-humid regions, and the open steppes, deserts, shrub­lands and dry non-commercial forested lands which, in addition to grazing, provide non­consumptive …

New Objectives And Modern Methods Of Forage Grass Breeding In The German Democratic Republic, Heinrich Baudis

IGC Proceedings (1977-2023)

The objectives of forage grass breeding in the GDR are derived from the social development processes which, in socialist agriculture, find their expression in further intensification, concentration and spezialization of plant and animal production. New aspects which have been recognized only recently, for example, positive response to intensification measures, suitability for industrialized production me­thods, increased yield stability and improved quality in addition to a higher yielding poten­tial, have the decisive say in the breeding tar­gets. The most important traits and properties from the breeder's point of view are dealt with in detail. Explanations on practical breeding work and on some …

Possibilities Of Dry Matter Production From Forage Plants Under Different Climatic Conditions, Th Alberda

IGC Proceedings (1977-2023)

On the basis of the gross photosynthesis of closed green grass swards the net potential dry herbage production of permanent pastures is calculated for the climatic and soil conditions for the so-called broad soil regions and summa­rized per continent. The values thus obtained form the upper level of dry herbage production to be reached on the prevailing permanent pas­ture area. Subsequently the minimum level of dry herb­age production is calculated, based on data on the production of marketed secondary prod­ucts as meat and milk. Since not all these secondary products are marketed and since not all the herbage produced is …

The Gene Pool And Its Use In Breeding Grassland Plants, Anna Novoselova

IGC Proceedings (1977-2023)

1. The gene pool of grassland plants is of great diversity and localized in certain centres of origin where the carriers of germ plasma are concentrated for the most important bio­logical characters and properties of a great variability of species.

2. New intensive varieties for mowing and grazing have been bred by advanced breeding methods and by taking advantage of the gene pool of the most important plant species throughout the world.

3. Wild-growing species were found to have great prospects for opening up soils of poor productivity by mowing and grazing use. They constitute a great reserve of genetic …

The Environment And Population Differences In Anjan Grass (Cenchrus Ciliaris) In Western India, S C. Pandeya

IGC Proceedings (1977-2023)

Cenchrus ciliaris (anjan or buffel grass) is a gregarious fodder species with high nutritive value. The species is an inhabitant of drier sandy areas throughout Africa, Canary Island, Madagascar and eastwards to India, where it mostly occurs in western parts of the country, constituting the States of Gujarat, Rajasthan, Hayana and the adjoining portions of Punjab, U ttar Pradesh and Madhya Pradesh ( called here in as Western India). In Western India, Cen­chrus ciliaris (Cc) variously dominates the nat­urally occurring grazing lands exhibiting great morphological variations with respect to habit. and spike characters. The ecoclimate of Western India is arid …

Review Of 50 Years Grassland Farming And Trends Of Development In The Further Intensification Of Forage Production In The German Democratic Republic, Eberhard Wojahn

IGC Proceedings (1977-2023)

This our XIII International Grassland Congress is being held at the invitation of the Govern­ment of the German Democratic Republic following the decision of the XII International Grassland Congress in Moscow in 1974 that this Congress shall be held as a jubilee event here in Leipzig. It is the Jubilee Congress reminding us of the First International Grass­land Congress which was held 50 years ago, during the last days of May, 1927, in this time-honoured University town and centre of world trade. Because of that jubilee character this XIII International Grassland Congress is of very special importance.

Influence Of Feeding On Health And Productivity Of Ruminants, Alexander Sommer

IGC Proceedings (1977-2023)

As to the utilization of plant matter not suited for direct consumption by man, ruminants are of outstanding importance. This fact is related with the function of their specific stom­ach system. The paper discusses the microbial protein synthesis from NPN compounds. When 50 per cent of digestible crude protein required by fattening cattle were replaced, daily live weight gains of 997 g were reached; beef quality was not affected. Similarly favourable results were obtained with dairy cows when replacing by NPN compounds 50 to 100 per cent of extracted meals. Further on, the problem of crude-fibre diges­tion in connection with …

A Differential Equation–Based Epidemiological Model Of Post-Operative Chronic Pain In Scoliosis Patients With Data-Driven Analysis, Paige Zhu, Padmanabhan Seshaiyer

CODEE Journal

Chronic post-surgical pain (CPSP) is a common and often overlooked complication following surgical correction of idiopathic scoliosis, impacting long-term patient wellbeing despite improvements in surgical outcomes. This project introduces a novel epidemiological framework to model the progression of CPSP using a compartmental structure. By applying a coupled system of nonlinear differential equations, we simulate pain trajectories over time and assess the effectiveness of surgical interventions. The model is implemented for a single-cohort population and extended to a two-cohort design to compare outcomes between Posterior Spinal Fusion (PSIF) and Vertebral Body Tethering (VBT) procedures. Further stratification by patient age enables us …

An Automated Electrochemistry Platform For Accelerating The Characterization Of Enzymatic Electrochemistry, Michael A. Pence, Zachary A. Nguyen, Luke G. Kays, Dylan G. Boucher, Joaquín Rodríguez-López, Shelley D. Minteer

Chemistry Faculty Research & Creative Works

Enzymatic electrochemistry harnesses the selectivity of enzymes to enable electrochemical applications spanning sensing, synthesis, and energy conversion. However, the sequential nature of electroanalytical experiments limits throughput, restricting the scale at which enzyme-electrode systems can be screened. Here we demonstrate the capabilities of an automated electrochemistry platform, eLab, to increase the throughput of enzymatic electrochemistry investigations. We used the eLab to collect over 10,000 cyclic voltammograms across a large parameter space consisting of two enzyme variants (promiscuous and wild-type glucose oxidase), 20 saccharide substrates, 21 concentrations, and four scan rates, with measurements being made all in triplicate. The expansive dataset enabled …

Perspectives Of Scholars, Families, And Advisors On 360-Degree Video Technology In Graduate Education, Oluwatobi A. Mogbojuri, Bridget A. Walsh, Matthew Aguirre

Journal of Human Sciences and Extension

This study explored the experiences of scholars in creating and sharing 360-degree videos, as well as the perspectives of families and advisors who viewed the videos. Focus groups and individual interviews were conducted online using a videoconferencing platform. Perspectives from 20 participants (15 scholars, three advisors, and two family members) were analyzed using thematic analysis. Three primary themes were identified: (1) barriers to 360-degree video use, (2) perspective shifts and limited change, and (3) storytelling and scholar visibility. Findings suggest that 360-degree video technology may be an innovative tool for enhancing recruitment and retention, especially for historically marginalized groups, through …

Elemental Analysis Of Upper Devonian To Lower Mississippian Organic-Rich Mudstone Cores From Kentucky By Portable X-Ray Fluorescence (Pxrf), Alex M. Washburn

KGS Research Data Set

This dataset contains high-density portable X-ray fluorescence (pXRF) elemental analyses of 1,867 m (6,125 ft) of Upper Devonian to Lower Mississippian organic-rich mudstone cores from Kentucky. Analyses were collected from cores across the Illinois Basin, Cincinnati Arch, and Appalachian Basin to support regional evaluation of elemental variability, chemostratigraphy, and redox-sensitive trace-metal enrichment in Devonian–Mississippian mudstone successions. All measurements were conducted using a Bruker Tracer 5 pXRF analyzer with the factory “Mudrock Air” calibration, using analytical settings optimized for both low-atomic-number elements and transition metals/redox-sensitive trace elements. Reference materials SARM-41 and SGR-1 were analyzed throughout the analytical sequence to monitor instrument …

Analysis Of Clinical Health Worker Notes With Explainable Artificial Intelligence For A Better Perspective In Preventing Readmission, Christopher Scott Klimp

Theses and Dissertations from DePaul University

Emergency Department (ED) readmissions remain a major challenge for healthcare systems, affecting both patient care quality and financial costs. Most prediction models depend largely on structured data from clinical tools that assign points to a small set of predefined factors – such as comorbidities, previous hospital visits, and behaviors such as smoking and drinking – and then sum those points to produce an overall risk score. These point-based tools leave out important information from Social Determinants of Health and a wealth of information from Community Health Workers (Community health workers (CHWs), trusted members of a community who help connect people …

Chi Meta-Project Ecosystem Overview - Spring 2026, David B. Smith

Publications and Research

This paper offers a high-level account of the Center for Holistic Integration’s (CHI) meta-project ecosystem as visualized in the included system map. CHI provides an organizational structure framed around persistent meta-projects that support and extend individual initiatives across curriculum, scholarly and applied research, infrastructure, artistic production, AI development, cultural inquiry, and external partnerships. Rather than presenting the map as a static inventory of projects, the paper examines how its core domains function as living systems through which knowledge, tools, documentation, participants, and collaborations can accumulate over time. It also considers how CHI-mediated connectivity, institutional integration, and external funding allow the …

How Do Different Food Influents Affect Biogas Production, Process And Operational Stability, And System Performance In The Armfield W8, A Bench-Scale Anaerobic Digester, Jarko Rumbaoa, Anahita Adhikari

Rose-Hulman Undergraduate Research Publications

No abstract provided.

Improving Urban Search And Rescue Team Coordination Through Adaptive Context Awareness, Daniel Reyes Duran

Doctoral Dissertations and Master's Theses

Modern multi-agent Urban Search and Rescue (USAR) operations heavily rely on mobile geospatial Common Operating Pictures (COPs) to maintain team coordination and Situational Awareness (SA). However, the proliferation of high-frequency sensor telemetry at the tactical edge has introduced a data saturation paradox challenge: while information theoretically drives informed decision-making, unmanaged data surges induce increased operator cognitive overload and alert fatigue on mobile End-User Devices (EUDs), while downstream data-broadcasting models inherently strain edge processing and viewport environments.

To resolve these constraints, this dissertation presents a context-aware Value of Information (VoI) data-management framework integrated directly with a custom, event-driven Android Team Awareness …

Activity Transition Graph Generation: How Far Are We?, Jiakun Liu, Peixin Zhang, Han Hu, Yonghui Liu, Wei Minn, Ferdian Thung, Shahar Maoz, Eran Toch, Debin Gao, David Lo

Research Collection School Of Computing and Information Systems

Android applications (i.e., apps) are indispensable nowadays and are getting bigger and bigger with an increasing number offunctionalities. To understand how to access functionalities in an app, prior studies proposed tools to model the transitionsbetween functionalities with the activity transition graph (ATG). ATG is an important data structure and has been used forvarious Android app analyses, including app design, understanding, and testing. However, there is no benchmarking work onATG generation. It is still unclear whether the transitions identified by tools are correct and how many transitions are missed.To fill this gap, we manually identified all transitions in 98 applications to …

Enhancing Deep Learning Image Reconstruction In Breast Ct With Task-Driven Training And Physics-Informed Models, Megan Ariel Murphy

Dissertations (1934 -)

Dedicated breast X-ray computed tomography (breast CT) is a developing imaging modality that has potential as an alternative to mammography. Unlike traditional mammography, breast CT offers high-resolution, fully 3D anatomical detail, which aids in the detection of microcalfications and subtle lesions that are potential indicators of cancer. To be effective for screening, breast CT must limit radiation exposure by reducing CT view angles. However, traditional image reconstruction methods yield noisy, artifacted images in this sparse-view CT setting. This dissertation develops image restoration and reconstruction methods that address these limitations by integrating physics-informed iterative methods with machine learning tools, and a …