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Articles 1 - 30 of 1396
Full-Text Articles in Life Sciences
Flowering Of Spring-Planted Greens, Elizabeth Maynard, Marian M. Rodriguez-Soto, Rebecca Koetz
Flowering Of Spring-Planted Greens, Elizabeth Maynard, Marian M. Rodriguez-Soto, Rebecca Koetz
Midwest Vegetable Trial Reports
Greens for salad or cooking are a significant part of the spring crop mix sold at Indiana farmers' markets. The harvest period for many spring-planted greens is shortened because they flower in response to environmental conditions. This paper reports on flowering response of two varieties of arugula, collards, mizuna, two types of mustard, and shungiku, planted in mid-April through May in northern Indiana.
High Tunnel Bell Pepper Spacing Trial, Bronwyn Aly
High Tunnel Bell Pepper Spacing Trial, Bronwyn Aly
Midwest Vegetable Trial Reports
The objective of this trial is to determine an optimum spacing for bell peppers grown in a high tunnel production system. Six different spacing treatments were evaluated in this trial. Results from this study suggest that tighter plant spacing increased yield per unit area (100 feet of linear row) but decreased the yield per plant.
A Machine Learning Model Of Perturb-Seq Data For Use In Space Flight Gene Expression Profile Analysis, Liam F. Johnson, James Casaletto, Lauren Sanders, Sylvain Costes
A Machine Learning Model Of Perturb-Seq Data For Use In Space Flight Gene Expression Profile Analysis, Liam F. Johnson, James Casaletto, Lauren Sanders, Sylvain Costes
Graduate Industrial Research Symposium
The genetic perturbations caused by spaceflight on biological systems tend to have a system-wide effect which is often difficult to deconvolute it into individual signals with specific points of origin. Single cell multi-omic data can provide a profile of the perturbational effects, but does not necessarily indicate the initial point of interference within the network. The objective of this project is to take advantage of large scale and genome-wide perturbational datasets by using them to train a tuned machine learning model that is capable of predicting the effects of unseen perturbations in new data. Perturb-Seq datasets are large libraries of …
Modelling The "Bottom-Up" Development Pattern Of Tar Spot Disease In Corn, Brenden Lane, Joaquín Guillermo Ramírez-Gil, Carlos Góngora-Canul, Mariela Sofia Fernandez Campos, Andres Cruz-Sancan, Fidel E. Jiménez-Beitia, Alex G. Acosta-Guatemal, Wily Sic, C. D. Cruz
Modelling The "Bottom-Up" Development Pattern Of Tar Spot Disease In Corn, Brenden Lane, Joaquín Guillermo Ramírez-Gil, Carlos Góngora-Canul, Mariela Sofia Fernandez Campos, Andres Cruz-Sancan, Fidel E. Jiménez-Beitia, Alex G. Acosta-Guatemal, Wily Sic, C. D. Cruz
Graduate Industrial Research Symposium
In 2015, the corn-infecting pathogen Phyllachora maydis (causal agent of tar spot disease) was reported for the first time in the United States. The disease has since spread across the US, causing major yield losses. In 2021 alone, 5.88 million metric tons (231.3 million bushels) of US corn yield were lost to this disease, costing an estimated US$1.25 billion. Though fungicides can protect against these agroeconomic losses, application timing can be difficult to optimize because our understanding of tar spot dynamics is still evolving. The current view is that tar spot typically develops bottom-up through a repeating infection cycle. Because …
Geospatial Analysis Of Agricultural Potential In The United States, Diana Febrita
Geospatial Analysis Of Agricultural Potential In The United States, Diana Febrita
Graduate Industrial Research Symposium
Traditionally, the agriculture sector is responsible for providing food and crop products. However, the role of agriculture has expanded beyond its traditional function. It is the main sector that contributes to the provision of food, income, employment, environmental protection, and local economic development. Reflecting on the roles of agriculture, understanding the potential of agriculture in the United States is crucial to discovering the prospects and challenges. This study will briefly discuss the agricultural potential in the United States based on the five assets, including natural capital, financial capital, human capital, physical capital, and social capital. To identify the states with …
Measurement And Imaging Of Intra Matrix Igg Diffusion, Riya Debbarma, Antonio C. F. Dos Santos, Diana Milena Ramiez Gutierrez, Fernanda M. Da Cunha, Michael Ladisch
Measurement And Imaging Of Intra Matrix Igg Diffusion, Riya Debbarma, Antonio C. F. Dos Santos, Diana Milena Ramiez Gutierrez, Fernanda M. Da Cunha, Michael Ladisch
Graduate Industrial Research Symposium
Bovine IgG diffusion measurement by tracking the movement of the protein over time in an in-vitro matrix is motivated by the large number of protein/peptide therapeutics currently under various stages of development in the pharmaceutical industry. Many of these therapeutics are monoclonal antibodies (IgG type proteins) that are candidates for subcutaneous, intra-vitreous and intra-articular administration depending on the target of the therapeutic. Hyaluronic acid (HA) is a major constituent and determines the key attributes of the subcutaneous environment, vitreous humor of the eye and synovial fluid of the knee joint. HA exhibits varying molecular weight at these anatomic locations thereby …
Mushrooom Production Without Solid Substrates, Alexander Baena, Marshall Porterfield
Mushrooom Production Without Solid Substrates, Alexander Baena, Marshall Porterfield
Graduate Industrial Research Symposium
Novel biotechnological approaches are needed to enhance renewable food production and waste recycling capabilities in resource-constrained environments. Edible mushrooms possess nutritious profiles and represent emerging opportunities to develop circular bioproduction by transforming waste organic materials into food and high-value products. However, traditional mushroom cultivation methods utilizing solid substrates have technical limitations like 1) uneven nutrient diffusion, 2) constant sterilization needs, 3) numerous intermediate steps that are energy and time-demanding, and 4) waste production from bags and jars. This work introduces an innovative hydroponic fungal cultivation system called Mycoponics™ using bioengineered ceramic materials. This liquid-nutrient-based technique optimizes fungal metabolism and facilitates …
Co-Crystallization Of Urea Granules For Slower Dissolution, Vidya Nagaraju, Carl Wassgren, Kingsly Ambrose
Co-Crystallization Of Urea Granules For Slower Dissolution, Vidya Nagaraju, Carl Wassgren, Kingsly Ambrose
Graduate Industrial Research Symposium
Co-crystals are multicomponent crystals formed through hydrogen bond interactions. Co-crystallization, the process of developing cocrystals, serves as a versatile approach for discovering new solid forms of active ingredients (AIs) that can alter physical properties such as solubility, dissolution rates, and stability. These co-crystals can be produced through three main methods: solid-state methods, solution-based methods, and supercritical fluid methods. Recently, the solid-state (mechanochemical) method of developing cocrystals has gained more attention from researchers in the development of slow-release urea fertilizers. This technique can also be applied to the development of urease inhibitors. These multicomponent crystals present a potential solution to the …
Evaluating The Environmental Impacts Of U.S. Historical Oil Spill Incidents, Yiming Liu, Hua Cai
Evaluating The Environmental Impacts Of U.S. Historical Oil Spill Incidents, Yiming Liu, Hua Cai
Graduate Industrial Research Symposium
Exposure to risks associated with the production and usage of products, particularly oil, poses significant threats to both ecological systems and human health. Notable examples include the Gulf War Oil Spill (1991) and the Deepwater Horizon Oil Spill (2010). However, numerous smaller-scale oil spills, which collectively contribute to substantial oil releases, often remain overlooked. To fill this gap, our study first developed a detailed oil spill incidents database, covering 1967 to 2023. We quantified the released amount (RA) of oil spills recorded by the National Oceanic and Atmospheric Administration (NOAA). Subsequently, we utilized life cycle impact indicators in ReCiPe to …
Autonomous Roadside Mower Testing And Evaluation In Digital Twin Environments, Michael Mardikes, Ethan Brown, Timothy Wiegman, Nathan Sprague, Shreyas Supe, J. T. Evans
Autonomous Roadside Mower Testing And Evaluation In Digital Twin Environments, Michael Mardikes, Ethan Brown, Timothy Wiegman, Nathan Sprague, Shreyas Supe, J. T. Evans
Graduate Industrial Research Symposium
Modern day roadside mowing operations in Indiana are performed by contractors operating tractors that pull flex-wing mowers. These mowing operations span over 11,000 miles of road across the state and create serious risk for human operators. Autonomous mowers can provide a safer alternative, but a replacement system must demonstrate an acceptable level of trust before large-scale deployment. A high-fidelity digital-twin environment can facilitate the capability to rapidly test and evaluate platforms in their desired application, while enabling zero real-world risk, a wide range of test variables, and repeatability of a test setup. The simulation environment must be at a level …
Online Class-Incremental Learning For Real-World Food Image Classification, Siddeshwar Raghavan, Jiangpeng He, Fengqing Zhu
Online Class-Incremental Learning For Real-World Food Image Classification, Siddeshwar Raghavan, Jiangpeng He, Fengqing Zhu
Graduate Industrial Research Symposium
Food image classification is essential for monitoring health and tracking dietary in image-based dietary assessment methods. However, conventional systems often rely on static datasets with fixed classes and uniform distribution. In contrast, real-world food consumption patterns, shaped by cultural, economic, and personal influences, involve dynamic and evolving data. Thus, it requires the classification system to cope with continuously evolving data. Online Class Incremental Learning (OCIL) addresses the challenge of learning continuously from a single-pass data stream while adapting to the new knowledge and reducing catastrophic forgetting. Experience Replay (ER) based OCIL methods store a small portion of previous data and …
Impact Of Equine Interaction During Psychotherapy On Anxiety And Depression For Residential Treatment Program Patients Experiencing Substance Withdrawal, Molly M. Friend, Molly C. Nicodemus, Clay Cavinder, Caleb Lemley, Pauline Prince, Katherine A. Cagle-Holtcamp, Rebecca M. Swanson
Impact Of Equine Interaction During Psychotherapy On Anxiety And Depression For Residential Treatment Program Patients Experiencing Substance Withdrawal, Molly M. Friend, Molly C. Nicodemus, Clay Cavinder, Caleb Lemley, Pauline Prince, Katherine A. Cagle-Holtcamp, Rebecca M. Swanson
People and Animals: The International Journal of Research and Practice
As incidences of substance use disorders (SUD) increase in the wake of the COVID-19 pandemic, there is a need for more effective treatment approaches. Further, treatment approaches currently available struggle to retain patients during the period of substance withdrawal in early treatment due to patients’ withdrawal symptoms including increased feelings of anxiety and depression. Withdrawal symptoms have been linked to dysregulated cortisol concentrations present in this period. Psychotherapy incorporating equine interaction (PIE) has emerged in other populations as a treatment that decreases cortisol concentrations and improves treatment retention. The present study investigated the impact of 4 weeks of PIE on …
Toward Improved Global Food Security: Uncovering How Tomatoes Fight Root-Knot Nematodes, Chingyan H. Huang
Toward Improved Global Food Security: Uncovering How Tomatoes Fight Root-Knot Nematodes, Chingyan H. Huang
The Journal of Purdue Undergraduate Research
No abstract provided.
Exploring The Evolution Of Callose Synthase In Green Plants, Giovanna Durante
Exploring The Evolution Of Callose Synthase In Green Plants, Giovanna Durante
The Journal of Purdue Undergraduate Research
No abstract provided.
Comparing Effects Of Atrazine Exposure On Neuroendocrine Molecular Targets At Two Developmental Exposure Periods In The Zebrafish, Jenna Swihart
Comparing Effects Of Atrazine Exposure On Neuroendocrine Molecular Targets At Two Developmental Exposure Periods In The Zebrafish, Jenna Swihart
The Journal of Purdue Undergraduate Research
No abstract provided.
Formulation Of Preservation Solutions For Model Generation With In Vivo Tissue Morphology, Holly Pickett
Formulation Of Preservation Solutions For Model Generation With In Vivo Tissue Morphology, Holly Pickett
The Journal of Purdue Undergraduate Research
No abstract provided.
Tree Localization In A Plantation Using Ultra Wideband Signals, Akshat Verma
Tree Localization In A Plantation Using Ultra Wideband Signals, Akshat Verma
The Journal of Purdue Undergraduate Research
No abstract provided.
Gossypium Hirsutum As A Study Species To Understand Plant Responses To Drought Stress, Sam Schafer
Gossypium Hirsutum As A Study Species To Understand Plant Responses To Drought Stress, Sam Schafer
The Journal of Purdue Undergraduate Research
No abstract provided.
Dining Out Behavior In China And The Implications In The Post-Covid-19 Era, Ji Yong Kwon
Dining Out Behavior In China And The Implications In The Post-Covid-19 Era, Ji Yong Kwon
The Journal of Purdue Undergraduate Research
No abstract provided.
A Computational Profile Of Invasive Lionfish In Belize: A New Insight On A Destructive Species, Joshua E. Balan
A Computational Profile Of Invasive Lionfish In Belize: A New Insight On A Destructive Species, Joshua E. Balan
The Journal of Purdue Undergraduate Research
Since their discovery in the region in 2009, invasive Indonesian-native lionfish have been taking over the Belize Barrier Reef. As a result, populations of local species have dwindled as they are either eaten or outcompeted by the invaders. This has led to devastating losses ecologically and economically; massive industries in the local nations, such as fisheries and tourism, have suffered greatly. Attempting to combat this, local organizations, from nonprofits to ecotourism companies, have been manually spear-hunting them on scuba dives to cull the population. One such company, Reef Conservation Institute (ReefCI), operating out of Tom Owens Caye outside of Placencia, …
High Tunnel Broccoli Cultivar Evaluations, Lewis Jett
High Tunnel Broccoli Cultivar Evaluations, Lewis Jett
Midwest Vegetable Trial Reports
Broccoli is a potentially profitable crop for high tunnel production. Updated information on yield and quality of new cultivars is important for producers making planting decisions. This evaluation of 11 cultivars was conducted within a high tunnel in Fall 2023.
2023 Evaluation Of Pumpkin Cultivars In West Virginia, Lewis Jett
2023 Evaluation Of Pumpkin Cultivars In West Virginia, Lewis Jett
Midwest Vegetable Trial Reports
Pumpkins are a popular, commercial vegetable crop in West Virginia. Each year, many new hybrid cultivars are released by commercial seed companies. In 2023, we trialed 16 cultivars. Pumpkins were grown using conventional tillage, and each cultivar was replicated 4 times. ‘Griffin’ ‘Justify’, ‘Hawk’, ‘Bellatrix’ and ‘Hermes’ produced high yields with both fruit count and average weight per pumpkin.
Implementing Integrated Stem Forensic And Soil Sciences Lab Activities To Promote Interest In Stem Careers, Mariah K. Stollar Awan, Caroline J. Rakowski
Implementing Integrated Stem Forensic And Soil Sciences Lab Activities To Promote Interest In Stem Careers, Mariah K. Stollar Awan, Caroline J. Rakowski
Indiana STEM Education Conference
We implemented forensic and soil science integrated STEM lab activities with 11 middle school youth at a 4-H day camp at Purdue University. STEM perceived knowledge increased overall for participants. However, the pre- and post-assessments did not show a statistically significant difference. More students also indicated STEM career interest after participating. Because this study was exploratory and had a small sample size, more research on these integrated STEM lab activities should be conducted with larger samples.
Biowall Development For The West Lafayette Public Library, Dhanurja De Silva, Yalin Lu, Siqi He, Ajay Dalal, Bill Hutzel
Biowall Development For The West Lafayette Public Library, Dhanurja De Silva, Yalin Lu, Siqi He, Ajay Dalal, Bill Hutzel
Purdue Journal of Service-Learning and International Engagement
A group of multidisciplinary Purdue students are working together to design, assemble, and install a Biowall in the Children’s section of the West Lafayette Public Library. A Biowall is a plant-based filter that improves Indoor Environmental Quality by cleaning indoor air and adding a natural aesthetic to the building space. Purdue has been developing Biowall technology since 2012, and this project involves redesigning it to fit into the available space at the library. The new Biowall design incorporates a watering mechanism that allows for children to get actively involved in maintaining the Biowall and learning about sustainability. This project also …
Colored Sweet Bell And Tapered Pepper Cultivar Evaluation For High Tunnel Production In West-Central Indiana, 2023, Petrus Langenhoven, Dennis Gustavo Toc Mo
Colored Sweet Bell And Tapered Pepper Cultivar Evaluation For High Tunnel Production In West-Central Indiana, 2023, Petrus Langenhoven, Dennis Gustavo Toc Mo
Midwest Vegetable Trial Reports
Colored sweet bell-shaped and tapered pepper is a summer crop that is grown by many small and medium-sized farming operations in Indiana. Growers can choose to grow peppers out in the field or plant them under a protective structure. Sweet peppers, in particular, benefit from the unique growing environment created by a high tunnel. Planting of peppers can start at least 2-4 weeks earlier in the spring, and production can continue into the fall until the first hard freeze. Pepper variety performance data for Indiana is not readily available. We are working hard to change that. To date, we have …
Evaluation Of 13 Round Tomato Cultivars In Southwest Michigan In 2023, Ben Phillips, Jenny Schoonmaker
Evaluation Of 13 Round Tomato Cultivars In Southwest Michigan In 2023, Ben Phillips, Jenny Schoonmaker
Midwest Vegetable Trial Reports
A round tomato cultivar trial was planted at the Southwest Michigan Research and Extension Center (42.081985, -86.354087, Benton Harbor, Michigan). Bejo (BJ), Enza Zaden (EZ), Seminis (SM), Sakata (SK), and Seedway (SW) seed companies donated round tomato cultivars for plastic-mulch bedded and trellised hand harvest. Overall trial quality was excellent, despite a dry start that brought in insects, and hard rains that flared bacterial diseases.
Evaluation Of Five Roma Tomato Cultivars In Southwest Michigan In 2023, Ben Phillips, Jenny Schoonmaker
Evaluation Of Five Roma Tomato Cultivars In Southwest Michigan In 2023, Ben Phillips, Jenny Schoonmaker
Midwest Vegetable Trial Reports
A Roma tomato cultivar trial was planted at the Southwest Michigan Research and Extension Center (42.081985, -86.354087, Benton Harbor, Michigan). HM Claus (HM), PanAmerican (PA), and Sakata (SK) seed companies donated five Roma tomato cultivars for plastic-mulch bedded and trellised hand harvest. Overall trial quality was excellent, despite a dry start that brought in insects, and hard rains that flared bacterial diseases.
Evaluation Of 23 Pickling Cucumber Cultivars For Machine Harvest In Southwest Michigan In 2023, Ben Phillips, Jenny Schoonmaker
Evaluation Of 23 Pickling Cucumber Cultivars For Machine Harvest In Southwest Michigan In 2023, Ben Phillips, Jenny Schoonmaker
Midwest Vegetable Trial Reports
A pickling cucumber cultivar trial was planted at the Southwest Michigan Research and Extension Center (42.088261, -86.351980, Benton Harbor, Michigan). Bejo (BJ), Nunhems (NU), Rijk Zwaan (RZ), and US AgriSeed (UA) seed companies donated parthenocarpic (seedless) cultivars for mechanical once-over harvest. Overall trial quality was good despite a droughty start, though picking could have started sooner.
Evaluation Of 11 Broccoli Cultivars For Summer Harvest In Southwest Michigan In 2023, Ben Phillips, Leah Freeman
Evaluation Of 11 Broccoli Cultivars For Summer Harvest In Southwest Michigan In 2023, Ben Phillips, Leah Freeman
Midwest Vegetable Trial Reports
A broccoli cultivar trial was planted at the Southwest Michigan Research and Extension Center (42.081985, -86.354087, Benton Harbor, Michigan). Bejo (BJ), Clifton (CL), Sakata (SK), and Tozer (TZ) seed companies donated 11 broccoli cultivars for plastic-mulch bedded hand harvest. The trial quality was good for collecting data on stressed plants. A dry start and cabbage maggot attack reduced stand with replacement plants lagging behind, and heat around head formation created a high proportion of non-marketable heads.
Evaluation Of Five Cauliflower Cultivars For Summer Harvest In Southwest Michigan In 2023, Ben Phillips, Leah Freeman
Evaluation Of Five Cauliflower Cultivars For Summer Harvest In Southwest Michigan In 2023, Ben Phillips, Leah Freeman
Midwest Vegetable Trial Reports
A cauliflower cultivar trial was planted at the Southwest Michigan Research and Extension Center (42.081985, -86.354087, Benton Harbor, Michigan). Bejo (BJ), Clifton (CL), Sakata (SK), and Tozer (TZ) seed companies donated five cauliflower cultivars for plastic-mulch bedded hand harvest. The trial quality was good for collecting data on stressed plants. A dry start and cabbage maggot attack reduced stand with replacement plants lagging behind, and heat around head formation created a high proportion of non-marketable heads.