Life Sciences Commons^™

Oregon State Rank Assessment For Chace Sideband (Monadenia Chaceana), Misty Nelson

Institute for Natural Resources Publications

Oregon state conservation status assessment for chace sideband (Monadenia chaceana) using NatureServe methodology, 2023.

Oregon State Rank Assessment For Donner Und Blitzen Pebblesnail (Fluminicola Insolitus), Misty Nelson

Institute for Natural Resources Publications

Oregon state conservation status assessment for Donner und Blitzen pebblesnail (Fluminicola insolitus) using NatureServe methodology, 2023.

Will Nebraska Farms And Ranches Be Ready For Double Digit Operating Line Rates?, Jeffrey Stokes, Jim Jansen

Cornhusker Economics

For those involved in agriculture, it has been quite a while since interest rates on farm real estate, equipment, and operating lines have been as high as they are for the industry. As the fall harvest winds down and producers focus on next year, interest rates on operating lines may cause shock. It has been over 20 years since interest rates on operating lines exceeded 10%. To better understand what may be causing interest rates on operating lines to rise, it will be beneficial to understand some basic monetary policy tools the Fed has at its disposal. The tool receiving …

Effect Of Ploidy On Salinity And Temperature Tolerance In Early Life Stages Of The Eastern Oyster (Crassostrea Virginica), Christian Boudreaux, Jessica Pruett, Alexz Carpenter, Kristie Willett, Deborah Gochfeld

Honors Theses

The U.S. Gulf of Mexico contains the largest remaining wild oyster fishery in the world, but populations have declined in recent decades. A growing interest in off-bottom aquaculture that relies on triploid eastern oysters (Crassostrea virginica) has emerged in the Gulf region, yet these faster growing oysters suffer high mortality as adults during low salinity events (< 5 ppt) in warmer summer months. The combined effects of salinity and temperature stressors on early life stages of triploid oysters are unknown. Early life stages are particularly crucial to understand because triploid oysters do not occur naturally and must be reared in hatchery settings, requiring appropriate water conditions to yield the greatest survival and growth. Thus, we tested the effects of different temperatures (28oC and 32oC) and salinities (5, 10, and 15 ppt) on diploid and triploid oysters at three critical production stages: veliger, pediveliger, and spat. Veliger survival was significantly lower for triploids relative to diploid oysters at all experimental conditions, but triploid veligers had faster growth than diploids at 32oC and 15 ppt. Pediveliger settlement was not affected by ploidy type and only reduced at high temperature (32oC) and the lowest salinity (5 ppt). Diploid spat showed highest survival at 28oC and 15 ppt, while triploids survived best at 32oC and 15 ppt. Triploid spat attained greater shell height compared to diploids in our 6-day exposures, but growth decreased for both ploidies at lower salinities. At the salinity and temperature levels examined, diploid early life stages performed best at 28oC and 15 ppt, whereas triploids were more successful at 32oC and 15 ppt. A broader understanding of the combined effects of environmental stressors will improve the success of hatchery production yields and the resulting economic and environmental benefits of the oyster industry.

Oregon State Rank Assessment For Puget Oregonian (Cryptomastix Devia), Eleanor P. Gaines, Misty Nelson

Institute for Natural Resources Publications

Oregon state conservation status assessment for Puget oregonian (Cryptomastix devia) using NatureServe methodology, 2023.

Examination Of The Prevalence And Behaviors Of Pathogenic And Spoilage Bacteria At Multiple Stages In The Meat Processing Chain, Samuel C. Watson

Dissertations and Doctoral Documents, University of Nebraska-Lincoln, 2023–

As long as there is food, there will also be bacteria that are capable of compromising the quality and safety of food. This dissertation aims to study bacteria capable of spoiling meat, causing illness, or both. The literature review summarizes the understanding of several bacterial pathogens, current issues in combating those pathogens in the food supply, and how spoilage Pseudomonas behave in the meat supply. Chapter 2 explored the impact of organic acid treatments on the spoilage microbiome of raw beef during extended storage. While Pseudomonas and Yersinia were both present in significant levels, Lactococcus was determined to be the …

Value-Added Green Processing Of Tomato Waste To Obtain A Stable Free-Flowing Powder Lycopene Formulation Using Supercritical Fluid Technology, Purlen Sezer Okur, Ozan Ciftci

Department of Food Science and Technology: Faculty Publications

The tomato processing industry generates large amounts of waste, which creates disposal problems and negatively impacts the environment. Tomato waste contains lycopene, high-value health- and wellness-promoting bioactive, and it is a potential source of natural lycopene for food and nutraceutical applications. However, isolation of lycopene from its source requires toxic solvents, and lycopene is unstable during storage. The objective of this study was to extract lycopene from tomato waste and to convert it to a shelf-stable and easy-to-use free-flowing powder form using green extraction and particle formation processes based on supercritical carbon dioxide (SC-CO2) technology. Lycopene was extracted using SC-CO2 …

Antibacterial Solution Using Cinnamomum Verum (Cinammon) And Cympobogon Citratus (Lemongrass) Essential Oils With Hydrogen Peroxide Against Staphylococcus Aureus And Escherichia Coli, Janelle Sasha O. Montañer, Javier Generoso S. Abes, Annika Marie A M. Cas, Diego Martin D. Herrera, Eusha Ysabela B. Manaloto, Danielle Asher Nicole B. Navarro, Marc Ryall S. Pabilonia, Qichsia Brea S. Paladin, Cerise Jaclyn R. Peña, Ailyn A. Ojeda, Fritz M. Ferran, Christian Jeff G. Cariaga

Sinaya: A Philippine Journal for Senior High School Teachers and Students

Amidst the pandemic, millions of impoverished Filipinos lack sufficient access to sanitation services that protect them from bacterial infections. As such, this study endeavored to formulate a disinfectant spray of hydrogen peroxide and varying concentrations of lemongrass (Cymbopogon citratus) and cinnamon (Cinnamomum verum) essential oils to produce a maximally effective solution. Due to their natural origin, these essential oils were chosen for their extensive antibacterial properties, affordable price, and low toxicity levels. Six disinfectant spray solutions containing different concentrations of either essential oil were tested against Staphylococcus aureus and Escherichia coli bacteria through the agar disk diffusion method. After analyzing …

Percolation-Modeling Comparison Between The Conductivities Of Zinc-Graphene Quantum Dot Nanocomposite And Graphite During Extracellular Electron Transfer In Microbial Fuel Cell Electrodes, Jamme Omar A. Biscocho, Ralph Calvin D. Almazan, Francis M. Emralino, Michelle T. Manglicmot

Sinaya: A Philippine Journal for Senior High School Teachers and Students

While promising as an energy production alternative through its sustainability and wastewater treatment utility, a microbial fuel cell is not widely used due to its low power output and high cost. The development of advanced electrode materials is currently being pursued to solve this problem. A zinc-graphene quantum dot nanocomposite was modeled using percolation theory as a prospective advanced electrode material. During extracellular electron transfer, the electrical conductivity properties of the material were studied through cellular percolation models, percolation probability functions, and electrical conductivity curves. These models were compared against those of the conventional graphite electrodes and the leading graphene …

A Comparative Study On The Effects Of Varying Concentrations Of Eggshell Tea Fertilizer On Capsicum Annum (Bell Pepper), Anjanette Czyra L. Argonza, Alaissa Riobel D. De Chavez, Raquel B. Supan, Kerry P. Cabral

Sinaya: A Philippine Journal for Senior High School Teachers and Students

With the increasing worldwide demand for eggs, the continuous accumulation of these poses environmental threats because of their support for microbiological action. However, the fact that eggshells have high calcium content motivated researchers to explore their potential use as fertilizer for various plant species. Despite this, most studies only focused on applying eggshell fertilizers in solid form. Meanwhile, research on boosting bell pepper production remains sparse in the Philippines despite its increasing demand. This study examined the capabilities of eggshell tea, a liquid form of eggshell fertilizer, by determining which concentration would be most effective and least effective in growing …

Elucidation Of Molecular Mechanisms Underlying Novel Multi-Targeted Therapy Strategies For, Qianqian Hu

USF Tampa Graduate Theses and Dissertations

EML4-ALK fusion non-small cell lung cancer (NSCLC) represents a distinct subset of lung cancers that possesses unique molecular and clinical features, paving the way for targeted therapeutic interventions. Despite the promise of ALK-directed therapies, challenges such as metastasis at the time of diagnosis and treatment resistance persist, necessitating deeper research into the underlying mechanisms and potential solutions. In the context of these challenges, our study embarked on two specific objectives. The first goal, elucidated in Chapter 2, revolved around brain metastasis, an event critically facilitated by cell migration. Here, we assessed the anti-migratory activities of several clinical ALK inhibitors in …

Author Correction: Regulation Of Hnrnpa1 By Micrornas Controls The Mir-18a-K-Ras Axis In Chemotherapy-Resistant Ovarian Cancer, Cristian Rodriguez-Aguayo, Paloma Del C Monroig, Roxana S Redis, Emine Bayraktar, Maria I Almeida, Enrique Fuentes-Mattei, Arturo Chavez-Reyes, Bulent Ozpolat, Rahul Mitra, Anil K Sood, George A Calin, Gabriel Lopez-Berestein

Faculty, Staff and Student Publications

No abstract provided.

Voltage- And Calcium-Gated Membrane Currents Tune The Plateau Potential Properties Of Multiple Neuron Types, Curtis L Neveu, Paul Smolen, Douglas A Baxter, John H Byrne

Faculty, Staff and Student Publications

Many neurons exhibit regular firing that is limited to the duration and intensity of depolarizing stimuli. However, some neurons exhibit all-or-nothing plateau potentials that, once elicited, can lead to prolonged activity that is independent of stimulus intensity or duration. To better understand this diversity of information processing, we compared the voltage-gated and Ca2+-gated currents of three identified neurons from hermaphroditic Aplysia californica Two of these neurons, B51 and B64, generated plateau potentials and a third neuron, B8, exhibited regular firing and was incapable of generating a plateau potential. With the exception of the Ca2+-gated potassium current (I KCa), all …

The Cancer Moonshot Immuno-Oncology Translational Network At 5: Accelerating Cancer Immunotherapies, Ananth Annapragada, Andrew G Sikora, Himangi Marathe, Song Liu, Michael Demetriou, Jinming Gao, Zachary S Morris, Eduardo Vilar, Elad Sharon, Alan Hutson, Kunle Odunsi

Faculty, Staff and Student Publications

The Immuno-Oncology Translational Network (IOTN) was established in 2018 as part of the Cancer Moonshot. In 2022, President Joe Biden set new goals to reduce the cancer death rate by half within 25 years and improve the lives of people with cancer and cancer survivors. The IOTN is focused on accelerating translation of cancer immunology research, from bench to bedside, and improving immunotherapy outcomes across a wide array of cancers in the adult population. The unique structure and team science approach of the IOTN is designed to accelerate discovery and evaluation of novel immune-based therapeutic and prevention strategies. In this …

Comparison Of Single-Port Laparoscopy With Other Surgical Approaches In Endometrial Cancer Surgical Staging: Propensity-Score-Matched Analysis, Sang Hyun Cho, Jung-Yun Lee, Eun Ji Nam, Sunghoon Kim, Young Tae Kim

Faculty, Staff and Student Publications

This single-institution, retrospective study aimed to compare the surgical outcomes of single-port, multi-port, and robot-assisted laparoscopy, as well as laparotomy, in patients with endometrial cancer who underwent surgical staging between January 2006 and December 2017. This study evaluated various parameters, including disease-free survival (DFS), overall survival (OS), recurrence rate (RR), recurrence site, and intra- and postoperative complications. Propensity score matching was performed to account for baseline characteristics, and a total of 881 patients were included in the analysis. The 3-year DFS of single-port laparoscopy was similar to that of the other groups, but laparotomy exhibited a lower 3-year DFS compared …

Synthetic Megavoltage Cone Beam Computed Tomography Image Generation For Improved Contouring Accuracy Of Cardiac Pacemakers, Hana Baroudi, Xinru Chen, Wenhua Cao, Mohammad D El Basha, Skylar Gay, Soleil Hernandez, Zaphanlene Kaffey, Adam D Melancon, Raymond P Mumme, Carlos Sjogreen, January Y Tsai, Cenji Yu, Laurence E Court, Ramiro Pino, Yao Zhao

Faculty, Staff and Student Publications

In this study, we aimed to enhance the contouring accuracy of cardiac pacemakers by improving their visualization using deep learning models to predict MV CBCT images based on kV CT or CBCT images. Ten pacemakers and four thorax phantoms were included, creating a total of 35 combinations. Each combination was imaged on a Varian Halcyon (kV/MV CBCT images) and Siemens SOMATOM CT scanner (kV CT images). Two generative adversarial network (GAN)-based models, cycleGAN and conditional GAN (cGAN), were trained to generate synthetic MV (sMV) CBCT images from kV CT/CBCT images using twenty-eight datasets (80%). The pacemakers in the sMV CBCT …

Exposure Of The Audience To Eco-Horror Movies And Its Relationship To Their Ecophobia Nature's Revenge Movies As A Model, Reham Refaat Mohammad Abdelaal

This study provides the first synthesis of the empirical literature on the psychology of Eco-horror film using multi-disciplinary research from media studies, psychology, neurobiology, psychotherapy, communication studies, clinical psychology, Aesthetics and Art. The study sought to identify the relationship between Audience's exposure to Eco-horror Movies and its Relationship to their Ecophobia, the study belongs to the descriptive studies, and the researcher used the media survey method, This study uses the Magic-Bullet Theory, or hypodermic needle theory’ , The Uses and gratifications Theory, Protection motivation theory (PMT)and the protective frame theory to develop a theoretical framework for ascertaining the type of …

Modelling Basal Area Of Perennial Grasses In Australian Semi-Arid Wooded Grasslands, S. G. Marsden, K. C. Hodgkinson

IGC Proceedings (1977-2023)

In many semi-arid pastoral systems, landscape processes easily become dysfunctional. Shifts to less functional states may be irreversible, and have long-term consequences for pastoral profitability and social viability of rural communities. Typically, shifts to lower functional states involve a decline in perennial grasses (Hodgkinson, 1994). Here we develop a conceptual basis for modelling the basal area of perennial grasses in a semi-arid grassland and validate the model using data from a 10-year grazing study.

The Effect Of Manipulated Conservation Margins In Intensively Grazed Dairy Paddocks On The Biodiversity Of Pteromalidae And Braconidae (Hymenoptera: Parasitica), A. Anderson, G. Purvis, A. Helden, H. Sheridan

IGC Proceedings (1977-2023)

Conserving field margins provides an opportunity to enhance biodiversity in agricultural landscapes. The parasitoid Hymenoptera represent one of the most diverse and biologically specialised of all insect groups and play an important role in insect pest control (LaSalle & Gauld, 1993). The diversity of parasitiods in any habitat is theoretically likely to reflect the diversity of host taxa. The aim of this study was to assess the effects of field margin manipulations on the diversity of parasitoids as a wider indication of effects on general arthropod diversity.

Plant Diversity Patterns Along Altitudinal Gradient In Understory Communities Of Darkesh Region, Bojnord, Iran, A. Arjmandi, H. Ejtehadi, F. Memariani, Mansour Mesdaghi

IGC Proceedings (1977-2023)

The ecotone region of Darkesh with an area of 22,500 hectares is located in the Irano-Turanian xeric-continental bioclimatic zone of Khorassan-Kopet Dagh. To investigate the plant diversity patterns of understory communities along three elevation classes of 1100-1600, 1600-2100, and 2100-2600 m, 187 plots were sampled randomly and abundance and cover of species were recorded using 4-m² plots. Beta diversity and Hill indices were calculated by using R and PAST software. A total of 252 species were recorded including 31 perennial grasses. The most abundant grasses were Poa nemoralis, Poa bulbosa, Bromus sterilis, Brachypodium sylvaticum, and Dactylis glomerata subsp. glomerata …

Using Genetic Diversity In Deep Root Systems Of Perennial Forage Grasses And Rice To Capture Carbon In Tropical Soils, J. Arango, Daniel M. Villegas, R. N. Jauregui, J. A. Cardoso, C. Costa Jr., C. Rebolledo, M. F. Alvarez, M. Selvaraj, L. Rodriguez, M. Mayorga, P. Chavarriaga, A. Notenbaert, M. Quintero, M. Da Silva, Manabu Ishitani, M. Peters, I. Rao, Joe Tohme

IGC Proceedings (1977-2023)

Agricultural soils have the potential not only to be sinks of carbon dioxide (CO₂) but also to mitigate the emissions of this gas to the atmosphere, thus, alleviating global warming. Perennial tropical grasses and rice upland and lowland varieties exhibit a large untapped genetic diversity in their root systems (e.g., deep rooting ability, exudation rates and chemical composition) that, if unlocked, could contribute to increased food production in crop-livestock systems while enhancing soil organic carbon (SOC) in tropical regions. Naturebased solutions that improve crop adaptation and SOC storage in tropical soils could help to remove CO₂ from …

Salt Tolerance Mechanisms In Perennial Fodder Grasses, Edna Antony, B. Aravind, A. Amulya, T. Anushree, P. V. Rakshata, F. H. Savitha, M. B. Doddamani, P. V. Kuligod, Akbar, Vinod Kumar, K. Sridhar, Vijay Kumar Yadav

IGC Proceedings (1977-2023)

Salinity stress is one of the most damaging stresses in crop plants. It reduces the productivity of the soil and makes it unsuitable for crop cultivation. Fodder crops are considered the best alternative in such uncultivable land. Using salinity-affected land for pasture development is the best alternative to utilize such lands. However, the extent of salinity tolerance varies among different grass species. In this study, Pearl millet Napier hybrids (PMN hybrid) and guinea grass varieties were studied for salinity tolerance in artificially created saline soils in the ratio of 13:7:1:2 (NaCl: Na₂SO₄: MgCl: CaSO₄, …

Effect Of Soil Nitrogen And Water Content On The Establishment Of A Lolium Perenne L. And Trifolium Repens L. Pasture, M. F. Alonso, Oscar A. Balocchi, I. Calvache, O. Martínez

IGC Proceedings (1977-2023)

Climate change has decreased rainfall in Southern Chile affecting the productivity of the grasslands that sustain the dairy and beef cattle industries. These grasslands are mainly mixtures of Lolium perenne L. and Trifolium repens L. Thus, we study the response on the establishment of a mixture of these two species to three levels of soil water content and two levels of nitrogen (N) fertilization. The trial was carried out in containers sowed in a complete randomized block´s design. Soil moisture measurements were taken daily. N fertilizations was applied at the establishment and every 60 days. Leaf appearance rate was measured …

Identification And Functional Characterization Of Two Novel Ring-Type E3 Ligases From Sesuvium Verrucosum, Fayas Thayale Purayil

Thesis/ Dissertation Defenses

Drought and salinity pose significant environmental challenges that impact the growth and productivity of plants. Sesuvium verrucosum is a succulent halophyte species of the Aizoaceae family. Halophytes have evolved specialized mechanisms to thrive in saline environments. Studying these adaptations can provide valuable insights into how plants cope with stress, thereby improving the resilience of crops and other plant species to combat salinity stress. In plants, the ubiquitin-proteasome system (UPS) is crucial in maintaining cellular homeostasis and regulating protein levels, particularly in stress responses. E3 ubiquitin ligases play a major role in identifying targets and transferring ubiquitin to those targets. Among …

Impact Of Level Of Use On Plant Vigor And Weight Of Festuca Humilior And Calamagrostis Vicunarum, T. Edson, L. Aguirre, E. R. Flores

IGC Proceedings (1977-2023)

Tussock grasslands of Festuca humilior and Calamagrostis vicunarum cover a significant extension of the central Andes of Peru, constituting a plant association highly appreciated by cattle ranchers. The objective of this research was to estimate the cumulative impact of the level of use of the key grasses Festuca humilior and Calamagrostis vicunarum on plant height, vigor, and weight. This study was conducted in a humid grassland of regular condition located at 4186 masl in the Puna ecoregion. The variables evaluated were: plant height, basal and canopy diameter and plant weight. The experiment lasted two years in which individual plants from …

Determining The Preparedness Of Nursing Programs And Faculty For The Next Generation Nclex-Rn, Heather Hartness

ATU Theses and Dissertations 2021 - Present

Fifty-two nursing faculty from ADN (Associate Degree Nursing) and BSN (Bachelor of Science in Nursing) programs in the state of Arkansas were surveyed to examine the preparedness resources and interventions to prepare for the Next Generation NCLEX-RN (NGN) and to explore the perceptions of nursing faculty on their readiness to teach critical thinking, clinical judgment, and their competency with NGN item writing. A quantitative cross-sectional descriptive design was used for this study utilizing a self-created survey. The survey revealed 40% of participants felt adequately prepared with item writing, and 35% reported feeling adequately prepared to test using the new NGN …

Bush And Revegetation Recovery After Fire On Farms In Western Australia, Department Of Primary Industries And Regional Development, Western Australia

Natural resources factsheets

This page gives some ideas on how to reduce the risk of fires in bush and revegetation on farms, and how to speed recovery of burnt areas.

Large patches of bush in good condition will generally regenerate well after fire, with some management of weeds and grazing.

Revegetation areas are much more susceptible to fire, and recovery largely depends on the age of the revegetation and after-fire management.

Population Genetic Structure Of Testudo Hermanni Boettgeri (Hermann's Tortoise) In Türkiye, Can Yilmaz, Oğuz Türkozan, Sezgi̇n Karaman, Celal Ülger

Turkish Journal of Zoology

Multidisciplinary approaches for the conservation of endangered species have great importance in preparing management plans. In addition to ecological and population demographic parameters, genetic data provide vital information for conservation management plans for a species. The Hermann's tortoise (Testudo hermanni) suffers from illegal trade, fires, habitat fragmentation and destruction, and therefore, the genetic diversity of the regional populations has been affected. It was aimed herein to impart knowledge on the population genetic structure of T. hermanni boettgeri, listed as near threatened by the International Union for Conservation of Nature Red List as a subspecies and has limited …

Addition Of Fibers Derived From Paper Mill Sludge In Paper Coatings: Impact On Microstructure, Surface And Optical Properties, Bilge N. Altay, Burak Aksoy, Anamiqa Huq, Richard Hailstone, Charles P. Klass, Muslum Demir, Scott Williams

Articles

Traditionally, cellulose nanofiber (CNF) production has primarily relied on virgin cellulose sources. Yet, the shift to using paper mill sludge (PMS) as a source for CNF underscores the significance of reusing and recycling industrial byproducts. PMS contains significant amounts of cellulose that can be extracted as a raw material. The purpose of present study is to provide a sustainable approach to PMS utilization as a paper coating additive in the cellulose nanofibrils (CNFPMS) form via simply scalable wire-wound rod coating method. The effect of CNFPMS additive amounts at two coating layers on microstructure and surface properties of coatings such as …

Affective Liking Influences Reward Processing In Depression: A Computational Eeg Approach, Garima Singh

Psychology ETDs

Reinforcement learning (RL) enables agents to learn through interaction with their environment. This empowers individuals to optimize actions in complex and dynamic settings. The component of event related potential (ERP) termed as the Reward Positivity (RewP) evidently signifies a fundamental reward prediction error (RPE) associated with rewards. This characteristic implies that it represents a fundamental computational process in the assessment of RL. When a reward is particularly pleasurable or liked by an individual, it tends to elicit an amplified RewP signal, reflecting the heightened positive affect. RPE arises from disparities between anticipated and actual rewarding outcomes and is known to …