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Modelling Nutrient Uptake By A Grass Sward: Long Term Studies Over Several Years, J Salette, Lydie Huche

IGC Proceedings (1977-2023)

Many experiments were conducted to assess the short term effects of fertilization management on nitrogen and mineral uptake of cut or grazed swards. One important work was performed to model the grass nutrition status during a regrowth (Salette, 1982; Salette et al., 1983; Salette et al., 1989), but for both a theoretical and practical point of view it is of great interest to evaluate the evolution of N and mineral uptake throughout all the years of a pasture life. This paper gives an analysis of nitrogen and mineral uptake dynamics during sev­eral years and proposes a model for sward N …

Unraveling Genetic Links Between Diabetes And Heart Failure-A Machine Learning Approach, Sunakhi Sahoo, Marzieh Ayati

Research Symposium

Background: Diabetic heart failure (DHF) is defined as a chronic and progressive disease which is associated with both diabetes and heart failure (HF). Even though there have been many developments in the knowledge of these diseases, there is still much to learn about the genetic crossovers between the two. In this study, we identified genes that are associated with diabetic heart failure and heart failure by using gene expression data from patients with DHF, HF, and a control group of patients who died of natural causes. We sought to identify genes that had altered expression levels which could possibly play …

Derivation And Testing Of Nutrient Norms For White Clover, Marta J. Rodreiguez

IGC Proceedings (1977-2023)

Foliar analysis has been practiced widely to diagnose the nutrient status of crops in order to give fertilizer recommenda­tions. The changing nature of plant tissue mineral concentra­tions imposes limitations on the use of foliar analysis for diag­nostic purposes. In this way, sampling of particular plant parts at particular stages of development is required to assess the nutrient status of crop and forage plants. The Diagnosis and Recommendations Integrated System (DRIS) was developed by Beaufils (1973), based on a holistic experimental approach, as a means of coping with the problems derived of the dynamic nature of foliar composition. Three concepts are …

Liming And Phosphate Fertilization On Forage Production, Mineral Composition And Nodulation On Pigeonpea (Cajanus Cajan (L.) Millsp.), V T. Paulino, N L. Costa, C.G S. Pedreira

IGC Proceedings (1977-2023)

For legume forage plant contribute effectively to grassland improvement, mainly through high herbage yields and fixation of atmospheric N, it is necessary to have a better knowledge of its nutritional requirements, since pigeonpea does not grow well on acidic soils with high levels of Al and poor in Ca, Mg and P. Ogunwale and Olaniyi (1978) reported a significant increase on forage production and P and Ca uptake for pigeonpea as a result of phosphate fertilization, while Abrufi.a et al., (1984) observed that lime improved growth, nodulation and P and Ca uptake, but with little effect on crude protein con­tent. …

Effects Of Phosphogypsum, Phsophorus And Lime On Andropogon Gayanus Kunth, V T. Paulino, E Malavolta

IGC Proceedings (1977-2023)

There are several factors which determine the low animal productivity in the tropics. Among these factors, inadequate nutrition is the most limiting one followed by the low natural fertility and high acidity of the soils in these regions. Previous findings have shown important soil nutrient deficiencies in some Brazilian cerrado soils. Malavolta (1952) demonstrated sulfur (S) deficiencies, while Werner et al. (1967) found plant response to S. Responses to phosphorus addition are very common in this kind of soil and in tropical America there are rates of phosphorus being applied, which sometimes are uneconomical for the formation and maintenance of …

An Effective P Application Method For Dactylis Glomerata, M Hojito, A Nishimune, M Noshiro

IGC Proceedings (1977-2023)

There are two practical ways to apply phosphorus (P) fertil­izer on cutting type grasslands in Hokkaido, Japan. The first one is to apply P at a rate of about I 00 kg P2Os/ha in the spring (April) in one application. Some reasons for this method have been explained (Hayakawa et al., 1951). However, in some cases, it is more convenient for practical management to apply three equal amounts of P, at three different times during the year (April, June and August) the same as other fertilizers such as nitrogen or potassium. That is a second way. Grassland soil is acidified …

Distribution Of Phosphorus And Aluminum In Acidic Pasture Soils And Effects On Growth Of Subterranean Clover, M J. Mclaughlin, T R. James

IGC Proceedings (1977-2023)

In south-eastern Australia, pasture improvement and the use of superphosphate fertilizers have resulted in the gradual acidi­fication of many soils under subterranean clover pastures (Wil­liams, 1980). Despite high values of exchangeable and extract­able aluminium (and low pH) recorded in many soils, there are few reports of significant responses of clover growth to lime application in the field. In this study we examined the vertical distribution of CaCb-extractable aluminium (Al) and available phosphorus (Bray P) in pasture topsoils. We also simulated the conditions in the field sites by investigating in solution culture the response of subterranean clover to various concentrations of …

Study Of Some Factors That Influence Upon P Fertilization On Pastures From Red Ferralitic Soil, Marta Hernandez, A R. Mesa

IGC Proceedings (1977-2023)

The importance of P for vegetal nutrition has been a topic of study for several workers. However, results obtained have not always been positive using P fertilizer due to some factors such as the content of this nutrient in the soil and its fixation capacity. This study was conducted in order to evaluate the response of guinea grass cv. Likoni and buffel grass cv. Biloela to P fertil­ization. These pastures were selected due to their favourable behaviour and the different levels of exigency to P that they pre­sent.

Response Of Forage Oats To Nitrogen Fertilizer In High And Low Fertility Soils, N Moreira

IGC Proceedings (1977-2023)

Forage oats are used extensively as whole-crop in rainfed areas of Portugal as is traditional in Mediterranean areas. They are cropped with minimum inputs, and increasingly in mixtures with annual legumes such as Vivia sativa (Moreira, 1989). In addition to the fact that relatively low yields are obtained in these conditions, the oats harvested during grain filling have a very low crude protein content, which severely limits their nutritive value (Eagles et al., 1979; Abreu et al., 1982). The aim of the present study is to determine the effects of nitrogen fertilizer on whole-crop forage oats in terms of dry­matter …

Rendement Des Prairies Dans Les Marais De L'Ouest De La France. Diagnostic Des Insuffisances Minerales, Y Pons, E Lafon

IGC Proceedings (1977-2023)

Situes sur la cote atlantique entre la Vilaine au Nord et la Gironde au Sud, !es Marais de l'Ouest s'etendent sur 250 000 ha environ. Ils resultent du comblement d'un golfe marin par des alluvions fluviomarines argileuses. La prairie est la production obligatoire lorsque !es contraintes hydrauliques ne sont pas maitrisables ou lorsque le cout d'amenagement est prohibitif. C'est le cas d'une part des marais "mouilles" qui sont soumis aux crues des rivieres (sols tourbeux et argileux) et d'autre part des marais desseches lorsque !es sols sont sodiques et done tres instables. L'objectif de l'etude est d'expliquer !es ecarts de …

Effects Of Short-Term Rotations Of Monocultures And Mixtures Of Legumes And Grasses With Rice In The Subtropical Zone Of South-Western China, S R. Zhou, Y G. Yu, K Mao, X M. Gan, Z L. Pu

IGC Proceedings (1977-2023)

Five short-term rotation systems of monocultures and mixtures of legumes and grasses with rice, i.e., Medicago hispida ➔ rice, Trifolium repens cv. Ladino ➔ rice, Astragalus sinicus + lolium multiflorum ➔ rice, Medicago hispida + Lolium multiflorum ➔ rice and Trifolium repens cv. Ladino + Lolium multiflorium ➔ rice, were selected from 8 evaluated in this study in the subtropical zone of south-western China. The average results for these rotational types per year were: forage dry matter 3,63 tlha, forage crude protein 727 .5 kg/ha, metabolisable energy 22.lx!03 MJ/ha, in vitro organic matter digestibility of forages 72.84%, rice yield 7.4 …

Potential Of Crotalaria Ochroleuca (Marejea) In Traditional Crop And Livestock Production Systems In Tanzania, S V. Sarwatt

IGC Proceedings (1977-2023)

In experiments to study the role of Crolalaria ochrroleuca (marejea) in traditional farming systems, the plant was used in the following way: (l) broadcast alone at a rate of 10 kg/ha of seed to determine dry matter (DM) yield, nutritive value and kg N/ha it can fix at different stages of growth, i.e., 2, 4, 6, 8, IO, 12, 14 and 16 weeks. (2) sown under after 3 weeks on alternate ridges with maize and maize alone as control. (3) the leaves at 10 weeks were harvested and supplemented to young sheep grazing 8 h/day. 12 male sheep …

Sesbania Sesban: A Promising Forage Legume In Semi-Arid Central Tanzania, D N. Msariri, M L. Kusekwa

IGC Proceedings (1977-2023)

Seventy-four accessions of Sesbania sesban were evaluated alongside 7 of S. goetzel for forage production at Mpwapwa, In Tanzania. The former was promising while the latter was generally unsuccessful. For S. sesban, germination of scarified inoculated seed in nursery was 34%. Survival of the seedlings was 96% at transplanting at 8 weeks. Growth in the field, measured in terms of mean incremental height, was 2.9 m at l year of establishment. On average, 50% of the plants flowered and formed pods at 158 and 190 days, respectively. Seed yield averaged 348 g per plant, while forage yield averaged 4.5 t …

Analysis Of Growth Characteristics And Evaluation As Fodder Resources Of Tropical Leguminous Browses In Subtropical Area In Japan, Y Kawamoto, M Honma

IGC Proceedings (1977-2023)

To evaluate the potential of several tropical leguminous browse species as fodder plants in the subtropical area of Japan, the dry matter yield and quality and resistance to clipping and drought in the first year were examined and compared in browse species. Species such as Deamodiwn tortuoaum, Desmodium discolor, Aeschynomene villosa and herbaceous Stylosanthes guianensis, had relatively high water stress tolerance, All the species were resistant to clipping. The species such as Desmodium tortuosum. Desmodium discolor among Desmodium genus have high potential for dry matter production and nutritive value in this region.

Agronomic Evaluation Of Centrosema Germplasm On Acid Utisol In The Humid Tropics Of Peru. Ii. Centrosema Tetragonolobum Schultze-Kraft & Williams, Gerhard Keller-Grein

IGC Proceedings (1977-2023)

The agronomic potential of 11 accessions of Centrosema tetragonolobum was assessed In a small-plot clipping trial conducted near Pucallpa, Peru. These accessions were compared with 8 selected accessions of C. acutifolium, C, brasilianum and C. macrocarpum, and 3 accessions of the agronomically little-known C. brachypodum and C. capitatum. All C. tetragonolobum accessions were well adapted to an acid ultisol (pH 4.S, 80% Al saturation). Several of them produced dry matter and seed yields similar to those of promising lines of C. acutifolium and C. macrocarpum, The capacity to root at trailing stems was poor for C. tetragonolobum …

A Feedback-Guided Analysis Of Environmental, Health And Socio-Economic Factors Affecting Drivers’ Willingness To Shift To E-Jeepneys, Charlotte Kendra Gotangco Gonzales, Katrina Abenojar, Carlos Rosauro Manalo, Melliza Templonuevo Cruz, Maria Obiminda L. Cambaliza, James Bernard Simpas, Imee Delos Reyes, John Wong, Bernell Go, Krizelle Cleo Fowler, Rene Marlon Panti, Emma E. Porio, Jean Jardeleza Mijares

Environmental Science Faculty Publications

The Jeepney Modernization Program involves the replacement of traditional jeepneys with more efficient alternatives, including modern enclosed electric vehicles, alongside operational improvements to the public transportation system. This study aims to assess the environmental, health and socio-economic factors impacting drivers’ willingness to shift to e-jeepneys. Feedback-Guided Analysis was used as a framework for designing an interdisciplinary approach towards understanding the decision-making paradigms of drivers plying a specific route in Quezon City, Metro Manila. Measurements of drivers’ exposure to PM2.5 and associated health parameters were complemented by key informant interviews delving into income, expenses, valuation of benefits and decision-making paradigms. A …

Maine Career Exploration: Final Evaluation Report, Julia Bergeron-Smith Mppm, Msw, Sarah Goan, Madison Burke, Becky Wurwarg, Amy Geren, Shannon Saxby

Publications

The Maine Career Exploration (MCE) Program was a two-year, $25 million pilot initiative launched in 2022 by Governor Janet Mills as part of the Maine Jobs and Recovery Plan. The program aimed to connect young people aged 16 to 24 with Maine’s economy through paid, age-appropriate career experiences that matched their interests, while also expanding career exploration opportunities in schools and communities and building long-term infrastructure to sustain these efforts. Managed by the Maine Department of Economic and Community Development, MCE distributed funding across three main streams: the Maine Children’s Cabinet Career Exploration Pilot Project, the Maine Department of Education’s …

Revised Final - Multi-Pathway Residential Metals Abatement Program Plan, Butte-Silver Bow Department Of Reclamation And Environmental Services, Atlantic Richfield Company

Silver Bow Creek/Butte Area Superfund Site

No abstract provided.

Revised Final Multi-Pathway Residential Metals Abatement Program Plan, Atlantic Richfield Company, Butte Silver Bow

Silver Bow Creek/Butte Area Superfund Site

No abstract provided.

Wayne E. Sabbe Arkansas Soil Fertility Studies 2024, Nathan A. Slaton

Arkansas Agricultural Experiment Station Research Series

Rapid technological changes in crop management and production require that the research efforts be presented in an expeditious manner. The contributions of soil fertility and fertilizers are major production factors in all Arkansas crops. The studies described within will allow producers to compare their practices with the university’s research efforts. Additionally, soil-test data and fertilizer sales are presented to allow comparisons among years, crops, and other areas within Arkansas.

Technical Cooperation Programme To Build Countries’ Capacities For Science-Based Sustainable Marine Management, Marc Metian, Jana Friedrich, Pere Masque, Sam Dupont, Magali Zapata, Michel Warnau, Carlos M. Alonso-Hernandez

Research outputs 2022 to 2026

No abstract provided.

Executive Functioning, Diabetes Distress, And Diabetes Management Among Adolescents With Type 1 Diabetes: Youth And Parent Perspectives, Allison Choe, Emily M. Fredericks, Dana L. Albright, Joyce M. Lee, Julie M. Sturza, Hurley O. Riley, Niko Kaciroti, Katherine W. Bauer, Allison L. Miller

Health Services and Informatics Research

Objective: Most adolescents with Type 1 Diabetes (T1D) do not achieve recommended glycemic targets, placing them at risk for long-term complications. Executive functioning (EF), or the cognitive processes that support goal-directed action and management of behavior, emotion, and cognition, is proposed to support effective T1D management and contribute to glycemic stability. We sought to examine associations of EF with T1D management behaviors and diabetes-related distress in adolescents with T1D.

Methods: Participants were 13–17-year-olds (M = 15.44, SD = 1.38 years) from a randomized controlled trial (N = 88). We conducted secondary analyses of preintervention data. Youth and their …

A Review Of Racial Differences And Disparities In Ecg, Jianwei Zheng, Chizobam Ani, Islam Abudayyeh, Yunfan Zheng, Cyril Rakovski, Ehsan Yaghmaei, Omolola Ogunyemi

Mathematics, Physics, and Computer Science Faculty Articles and Research

The electrocardiogram (ECG) is a widely used, non-invasive tool for diagnosing a range of cardiovascular conditions, including arrhythmia and heart disease-related structural changes. Despite its critical role in clinical care, racial and ethnic differences in ECG readings are often underexplored or inadequately addressed in research. Variations in key ECG parameters, such as PR interval, QRS duration, QT interval, and T-wave morphology, have been noted across different racial groups. However, the limited research in this area has hindered the development of diagnostic criteria that account for these differences, potentially contributing to healthcare disparities, as ECG interpretation algorithms largely developed from major …

Nonadhesive Membranes: Preparation And Characterization Of Modified Phbhx Membranes, Funda Alkan, Murat Demi̇rbi̇lek, Oktay Aydin, Berrak Gümüşkaya Öcal, Neli̇sa Laçi̇n Türkoğlu, Mustafa Türk, Mehmet Ali̇ Onur

Turkish Journal of Chemistry

After abdominal surgery, there is a possibility of adhesions between the abdominal organs and the abdominal wall. Theadhesions can lead to problems such as chronic pain, intestinal blockage, and infertility. To prevent adhesion, antiadhesion patchescan be used. In this study, poly hydroxybutyrate-co-hexanoate membranes were fabricated as antiadhesion patches and modified witheither fatty acids or polyethylene glycol. The homogeneity and protein absorption of the membranes were assessed. The effects onblood coagulation factors were determined and the adhesion-proliferation properties of human fibroblast cells on the membranes weredetermined. The results show that myristic acid slightly increases surface free energy (40.7 ± 4.2 mN/m), …

Icipe Monthly Digest – Volume 1, Issue 2, February 2025, International Centre Of Insect Physiology And Ecology (Icipe)

icipe Newsletters

No abstract provided.

Exploring Key Factors Influencing Depressive Symptoms Among Middle-Aged And Elderly Adult Population: A Machine Learning-Based Method, Ngoc Doan Thu Tran, Yi Zhen Tan, Sapphire Lin, Fang Zhao, Yee Sien Ng, Dong Ma, Jeonggil Ko, Rajesh Krishna Balan

Research Collection School Of Computing and Information Systems

Objective: This paper aims to investigate the key factors, including demographics, socioeconomics, physical wellbeing, lifestyle, daily activities and loneliness that can impact depressive symptoms in the middle-aged and elderly population using machine learning techniques. By identifying the most important predictors of depressive symptoms through the analysis, the findings can have important implications for early depression detection and intervention. Participants: For our cross-sectional study, we recruited a total of 976 volunteers, with a specific focus on individuals aged 50 and above. Each participant was requested to provide their demographic, socioeconomic information and undergo several physical health tests. Additionally, they were asked …

Advances In Research And Development With Sylosanthes And Other Tropical Pasture Legumes, D F. Cameron, C P. Miller, L A. Edye, J W. Miles

IGC Proceedings (1977-2023)

The last 20 years have seen major advances in research and development wilh tropical legumes. Research advances have been closely associated with substantial increases in the number and diversity of genetic resource collections, Release of a wide range of new cultivars has been based on selection for plant adaptation, persistence and productivity, screening for resistance to pest's and diseases, and the development of efficient seed production. Determination of fertiliser requirements and grazing management practices has resulted in sustainable animal production from legume-based pasture systems. Extensive pasture development has now occurred in both high and low input systems. Options vary from …

Growth And Mineral Nutrition In Dichanthium Aristatum Sward Shaded By Tress, P Cruz, N M. Munier-Jolain, R Tournebize, H Sinoquet

IGC Proceedings (1977-2023)

Gliricidia sepium is an important legume tree used in the silvopastoral systems of the Caribbean area and tropical America. In this work we analysed the effect of its alley cropping on the growth and mineral nutrition of a Dichanthium aristatum sward, Results show that nitrogen uptake and conversion efficiency of solar radiation were twice as high in the shaded grass. Phosphorus and potassium uptake of dichanthium were also improved by tree presence, Better mineral nutrition and growth of a shaded sward could be related to the better water status of the .. grass leaves throughout the day, This effect may …

Contribution Of Parkia Biglobosa To The Feeding Value Of Pasture Systems In West Africa, Elly N. Sabiiti, J Cobbina, J Lambourne

IGC Proceedings (1977-2023)

Parkia (Parkia biglobosa) is an important traditional economic tree legume with several uses for the rural farmers in West Africa, although it has received only limited resenrch. Parkia is dominant in natural pastures or fallow fields that are used for livestock grazing. The tree provides shade to forage grasses and livestock, protects soil from heat and torrential tropical rains, resists fire damage and coppices very well after defoliation. Farmers grow several food crops under the canopy. The fruits, leaves and young seedlings, which are highly nutritious, form an important fodder for livestock in the dry season when natural …

Pilot Study: Initial Investigation Suggests Differences In Emt-Associated Gene Expression In Breast Tumor Regions, Kylie L. King, Hamed Abdollahi, Zoe Dinkel, Alannah Akins, Homayoun Valafar, Heather Dunn

Faculty Publications

Triple negative breast cancer (TNBC) is the most aggressive subtype and disproportionately affects African American women. The development of breast cancer is highly associated with interactions between tumor cells and the extracellular matrix (ECM), and recent research suggests that cellular components of the ECM vary between racial groups. This pilot study aimed to evaluate gene expression in TNBC samples from patients who identified as African American and Caucasian using traditional statistical methods and emerging Machine Learning (ML) approaches. ML enables the analysis of complex datasets and the extraction of useful information from small datasets. We selected four regions of interest …