Open Access. Powered by Scholars. Published by Universities.®

Life Sciences Commons

Open Access. Powered by Scholars. Published by Universities.®

225,837 Full-Text Articles 331,755 Authors 61,421,447 Downloads 457 Institutions

All Articles in Life Sciences

Faceted Search

225,837 full-text articles. Page 3 of 6650.

Analysis Of Electrophysiological Markers And Correlated Components Of Neural Responses To Discourse Coherence, Kurt M. Masiello 2023 The Graduate Center, City University of New York

Analysis Of Electrophysiological Markers And Correlated Components Of Neural Responses To Discourse Coherence, Kurt M. Masiello

Dissertations, Theses, and Capstone Projects

Constructing meaning from spoken language is invaluable for learning, social interaction, and communication. In clinical populations with developmental disorders of speech comprehension, the severity of disruption can persist and vary from limiting occupational opportunities to lower performance outcomes. Previous research has reported an event-related potential (ERP) neural positivity over right hemisphere lateral anterior sites in response to semantic and discourse processing. Although useful as a marker for clinical populations of autism spectrum disorder (ASD) and developmental language disorder (DLD), little is understood about the dynamics and neural sources of this biological marker. In addition to traditional methods of ERP analysis, …


Grassland Productivity And Water Quality: A 21st Century Issue, David M. Nash, P. M. Haygarth 2023 Department of Primary Industries, Australia

Grassland Productivity And Water Quality: A 21st Century Issue, David M. Nash, P. M. Haygarth

International Grassland Congress Proceedings

  1. Irrigation and other changes to the hydrological cycle can increase soil and water salinity.
  2. Primary salinisation is a natural process that affects much of Europe, Asia, Africa, the Americas and Australia. Secondary salinisation is caused by human activities such as irrigation and land clearing that mobilise salt stored in the soil.
  3. The critical water contaminants exported from grasslands are nitrogen, phosphorus, potential pathogens and sediment.
  4. The mechanisms responsible for diffuse pollution from grasslands and mitigation strategies are most effectively investigated using a ‘source-mobilisation-transport’ framework.
  5. There is a lack of coherent interaction across discipline boundaries that links pollutant sources to impact. …


Water Resources, Agriculture And Pasture: Implications Of Growing Demand And Increasing Scarcity, M. W. Rosegrant, R. A. Valmonte-Santos, S. A. Cline, C. Ringler, W. Li 2023 International Food Policy Research Institute

Water Resources, Agriculture And Pasture: Implications Of Growing Demand And Increasing Scarcity, M. W. Rosegrant, R. A. Valmonte-Santos, S. A. Cline, C. Ringler, W. Li

International Grassland Congress Proceedings

  1. Water availability for irrigation is threatened in many regions by rapidly increasing demand for nonagricultural water uses in industry, households, and the environment. The scarcity of irrigation water will not only impact crop production, but also meat production, as much of the pasture used to feed livestock is irrigated.
  2. Grassland is caught between two countervailing forces: a requirement for increasing meat demand that boosts the need for additional pasture to support livestock production, and rapidly increasing water scarcity that makes pasture irrigation uneconomical.
  3. The most effective means of dealing with water scarcity is likely to be conserving water in existing …


Soil Quality Assessment And Management, M. G. Kibblewhite 2023 Cranfield University, UK

Soil Quality Assessment And Management, M. G. Kibblewhite

International Grassland Congress Proceedings

  1. Soil quality is related to the capacity of soil to deliver ecosystem services on a sustainable basis.
  2. Effective management of soil within grasslands can deliver many benefits to mankind but poor management may cause loss of soil quality from erosion, loss of organic matter, physical deterioration etc.
  3. Services are delivered from soil by biological processes. Soil quality depends on the form and condition of the soil habitat. Fixed factors (e.g. texture) are useful for assigning soil to types. Variable factors (e.g. organic carbon) can then be used to assess quality within soil types, by reference to percentiles of the distribution …


Soil Microbial Community: Understanding The Belowground Network For Sustainable Grassland Management, Y. G. Zhu, W. D. Kong, B. D. Chen, Z. B. Nan, P. Christie 2023 Chinese Academy of Sciences, China

Soil Microbial Community: Understanding The Belowground Network For Sustainable Grassland Management, Y. G. Zhu, W. D. Kong, B. D. Chen, Z. B. Nan, P. Christie

International Grassland Congress Proceedings

  1. In addition to the use of conventional methodologies in soil microbial research, molecular techniques are now being applied to gain insights into the soil microbial community;
  2. Plant diversity can exert impacts on soil microbial diversity (through root activities and plant litter etc.), but may in itself be significantly altered by soil properties;
  3. Soil microbial diversity largely determines the stability of soil ecosystems under biotic and abiotic perturbations.
  4. Management of soil microbial diversity can only be achieved through better understanding their structures and functions.


Grasslands1 For Production And The Environment, David R. Kemp, David L. Michalk 2023 University of Sydney, Australia

Grasslands1 For Production And The Environment, David R. Kemp, David L. Michalk

International Grassland Congress Proceedings

  1. To manage grasslands for production and enhanced environmental values requires a redefinition of the frameworks within which management decisions are made, and a tailoring of practices to suit the ways that farmers operate.
  2. Improving the perenniality and permanence of grasslands usually leads to better environmental and production outcomes.
  3. There is a case for a more conservative approach to utilising grasslands in order to sustain the functioning of local ecosystems and to improve water quality, nutrient and energy cycling and biodiversity.
  4. A landscape rather than paddock focus is more appropriate for meeting current grassland management objectives. Grasslands can be triaged to …


The Potential Of Grassland And Associated Forages To Produce Fibre, Biomass, Energy Or Other Feedstocks For Non-Food And Other Sectors: New Uses For A Global Resource, M. F. Askew 2023 Central Science Laboratory, UK

The Potential Of Grassland And Associated Forages To Produce Fibre, Biomass, Energy Or Other Feedstocks For Non-Food And Other Sectors: New Uses For A Global Resource, M. F. Askew

International Grassland Congress Proceedings

  1. In developed countries increased areas of land will become available for non-food production. Recent reforms of the Common Agricultural Policy will further intensify this trend in Europe.
  2. There is potential for grassland and associated species to contribute to large tonnage markets of energy and bulk fibres, to the supply of fermentation products and to speciality markets, but processes and approaches to the market are not as yet developed.
  3. There is potential for the establishment of Graminaceous species - specifically for non- food use. For European conditions particular attention is being given to Miscanthus sinensis (Miscanthus), Arundo donax (Giant Reed), Phalaris …


Grasses As Biofactories: Scoping Out The Opportunities, Nick Roberts, K. Richardson, G. Bryan, Christine R. Voisey, W. McNabb, T. Conner, M. Christey, R. Johnson 2023 AgResearch, New Zealand

Grasses As Biofactories: Scoping Out The Opportunities, Nick Roberts, K. Richardson, G. Bryan, Christine R. Voisey, W. Mcnabb, T. Conner, M. Christey, R. Johnson

International Grassland Congress Proceedings

  1. Plant biopharming is set to dominate commercial recombinant protein expression for specific proteins.
  2. The choice of plant species depends on a multitude of factors and is determined on a case- by-case basis.
  3. As a leaf based expression system grasses would have to compete predominantly with tobacco and alfalfa.
  4. The grass-endophyte symbiosis offers a number of unique possibilities for biopharming.


Adoption Of Tropical Legume Technology Around The World: Analysis Of Success, H. M. Shelton, Steven Franzel, M. Peters 2023 The University of Queensland, Australia

Adoption Of Tropical Legume Technology Around The World: Analysis Of Success, H. M. Shelton, Steven Franzel, M. Peters

International Grassland Congress Proceedings

  1. Examples of successful adoption of forage legumes are reported from all continents, where they delivered profitability and often provided multipurpose benefits to farmers.
  2. Factors vital to successful adoption were: meeting the needs of farmers; building relevant partnerships; understanding the socio-economic context and skills of farmers; participatory involvement with rural communities; and long-term involvement of champions.
  3. Organisation of seed supply, achieving scale-up and forming partnerships to implement adoption are key features.
  4. Legumes remain an important but under-exploited resource for tropical farming systems. The alternative to legumes will be greater and more costly use of N-fertilisers and purchased protein concentrates.
  5. The R&D …


Evolution Of Integrated Crop-Livestock Production Systems, Martin H. Entz, William D. Bellotti, J. M. Powell, S. V. Angadi, W. Chen, K. H. Ominski, B. Boelt 2023 University of Manitoba, Canada

Evolution Of Integrated Crop-Livestock Production Systems, Martin H. Entz, William D. Bellotti, J. M. Powell, S. V. Angadi, W. Chen, K. H. Ominski, B. Boelt

International Grassland Congress Proceedings

  1. Many factors contribute to changes in the crop-livestock systems, but no logical end-point in the evolution process exists.
  2. While benefits of integrated crop-livestock systems over specialised crop and livestock systems are well documented, there has been a move to specialised crop and livestock production.
  3. Sustainability issues (manure nutrient concentration, soil quality maintenance, salinity, herbicide resistance, economic instability) have created a renewed interest in integrated crop-livestock systems.
  4. Farmer adaptability is as an important link in the evolution between ‘states of integration’.


Overcoming Seasonality Of Production: Opportunities Offered By Forage Conservation Technologies, P. O'Kiely, A. G. Kaiser 2023 Teagasc, Ireland

Overcoming Seasonality Of Production: Opportunities Offered By Forage Conservation Technologies, P. O'Kiely, A. G. Kaiser

International Grassland Congress Proceedings

  1. Seasonality of forage supply is a key contributor to the seasonality of meat and milk production.
  2. Conserving forages as silage or hay can help reduce the seasonality of feed supply.
  3. Forage conservation technologies make this contribution mainly through increases in the yield or quality of suitable crops, through an improved efficiency of the conservation process or by allowing a reduction in costs.
  4. Future research needs differ considerably among regions of the world.


Strategies To Mitigate Seasonality Of Production In Grassland-Based Systems, Claudio Porqueddu, S. Maltoni, J. G. McIvor 2023 CNR-ISPAAM, Italy

Strategies To Mitigate Seasonality Of Production In Grassland-Based Systems, Claudio Porqueddu, S. Maltoni, J. G. Mcivor

International Grassland Congress Proceedings

  1. Fertilisation use and manipulation can cost-effectively alter species composition, increase seasonal herbage production and improve herbage quality.
  2. Choice of suitable grassland species, varieties and mixtures offers opportunity to mitigate limitations of seasonal grassland production.
  3. Special purpose fodder crops, cereals, shrubs and trees offer alternative or supplementary feed sources.
  4. Manipulation of stocking rates, grazing systems, transhumance and pasture management at various times of the season are significant advantageous options.
  5. Integration of different strategies is essential to mitigate seasonality in systems of animal production that must be inherently more sustainable over a longer time frame.


Interactions Between Foraging Behaviour Of Herbivores And Grassland Resources In The Eastern Eurasian Steppes, Deli Wang, Guodong Han, Yuguang Bai 2023 Northeast Normal University, China

Interactions Between Foraging Behaviour Of Herbivores And Grassland Resources In The Eastern Eurasian Steppes, Deli Wang, Guodong Han, Yuguang Bai

International Grassland Congress Proceedings

  1. In rangeland areas such as the eastern Eurasian steppes (Mongolia and China), foraging behaviour is influenced by plant or vegetation properties with high heterogeneity.
  2. Until recently foraging theory has not accounted for the foraging process or ingestive behaviour. Existing theories on foraging behaviour need to evolve and begin to coalesce, and combine with observations or manipulative experiments.
  3. Plant and patch properties such as diversity and height influence animal foraging behaviour (related to foraging process or diet selection) in heterogeneous steppes.
  4. Stocking rate is the most important management factor for grazing or vegetation management, and determining the optimal stocking rate in …


Foraging Behaviour And Herbage Intake In The Favourable Tropics/Sub-Tropics, S. C. Da Silva, Paulo C. de F. Carvalho 2023 Universidade de São Paulo, Brazil

Foraging Behaviour And Herbage Intake In The Favourable Tropics/Sub-Tropics, S. C. Da Silva, Paulo C. De F. Carvalho

International Grassland Congress Proceedings

  1. Herbage intake by animals grazing tropical/sub-tropical pastures is directly related to bite mass, as it is for those grazing temperate pastures.
  2. Where these swards have low proportions of stem and dead material (controlled swards), herbage intake follows a similar pattern to that of temperate pasture species, but leaf characteristics, such as lamina length play an important role and influence the short-term rate of intake.
  3. Sward structural characteristics and behavioural factors are relatively more important than nutritional factors in terms of herbage intake regulation. The feeding value of the herbage produced is potentially adequate to sustain high levels of beef cattle …


Differential Strain-Dependent Ovarian And Metabolic Responses In A Mouse Model Of Pcos, April K. Binder, Danielle L. Peecher, Amanda J. Qvigstad, Silvia D. Gutierrez, Jennifer Magaña, David B. Banks, Kenneth S. Korach 2023 Central Washington University

Differential Strain-Dependent Ovarian And Metabolic Responses In A Mouse Model Of Pcos, April K. Binder, Danielle L. Peecher, Amanda J. Qvigstad, Silvia D. Gutierrez, Jennifer Magaña, David B. Banks, Kenneth S. Korach

Biology Faculty Scholarship

Several mouse models have been developed to study polycystic ovarian syndrome (PCOS), a leading cause of infertility in women. Treatment of mice with dihydrotestosterone (DHT) for 90-days causes ovarian and metabolic phenotypes similar to women with PCOS. We used this 90-day DHT treatment paradigm to investigate the variable incidence and heterogeneity in two inbred mouse strains, NOD/ShiLtJ and 129S1/SvlmJ. NOD mice naturally develop type 1 diabetes, and recent meta-analysis found increased androgen excess and PCOS in women with type 1 diabetes. 129S1 mice are commonly used in genetic manipulations. Both NOD and 129S1 DHT treated mice had early vaginal opening, …


Lignin Nanoparticles Comparative Study For Their Emulsifying, Antibacterial And Antioxidant Properties, Matta Asaad Mesak Ebaid 2023 American University in Cairo

Lignin Nanoparticles Comparative Study For Their Emulsifying, Antibacterial And Antioxidant Properties, Matta Asaad Mesak Ebaid

Theses and Dissertations

Converting lignin, the second most natural abundant polymer on earth, into lignin nanoparticles (LNPs) form has potential applications. LNPs’ emulsifying, antibacterial and antioxidant properties of three different lignins, softwood kraft lignoboost (LB), hardwood birch (BB) and alkali protobind 1000 (PB) were evaluated in a comparative study at different pH and concentrations. Lower ionic strength of 5 millimole (mM) citric acid (CA) and pH of 7 were found to be the most optimum conditions for emulsion formation. Comparison among the two homogenization techniques revealed that microfluidizer is favored in case of BB- and PB-LNPs based emulsions, while ultrasonication is optimum in …


Effects Of A Race Timer On The 3-Minute All-Out Test For Critical Power, Paul Mandell, Boe Burrus, Taylor Bloedon 2023 Cal Poly Humboldt

Effects Of A Race Timer On The 3-Minute All-Out Test For Critical Power, Paul Mandell, Boe Burrus, Taylor Bloedon

Topics in Exercise Science and Kinesiology

Topics in Exercise Science and Kinesiology Volume 4: Issue 1, Article 2, 2023. The 3-min all-out cycling test (3MT) elicits valuable fitness metrics including V̇O2peak, HRmax, Critical Power (CP), and Work Above End Power (WEP; equivalent to work prime; W’). Twelve (n = 12) healthy active males were recruited to participate in the current study on the effects of the implementation of a race timer on the 3MT. Participants completed a V̇O2peak test and one 3MT familiarization trial before completing one standard 3MT and one 3MT with the presence of a countdown race timer in …


A Brief Overview Of Triple A Syndrome, Jamaal Khan 2023 Nova Southeastern University

A Brief Overview Of Triple A Syndrome, Jamaal Khan

Mako: NSU Undergraduate Student Journal

Triple A Syndrome, also known as AAA Syndrome, is a rare autosomal recessive disorder caused by any mutation in the AAAS gene on chromosome 12q13, whose main function is to code for the WD-repeat family regulatory protein, ALADIN. It typically occurs as a group of diseases that are characterized by alacrima, Addison's disease, and achalasia. Alacrima can be defined by a decrease in the amount of tears produced while achalasia is nerve damage in the esophagus that can cause difficulty swallowing. Lastly, Addison's disease is the insufficient production of cortisol and aldosterone produced by the adrenal cortex. There is no …


Dynamic Fecal Microbiota Transfer From Mice With Western Diet-Induced Severe Colitis And Colon Tumorigenesis Did Not Exacerbate Colitis Symptoms Or Colon Tumorigenesis In Recipient Mice Fed Either The Ain93g Diet Or The Total Western Diet, Abby D. Benninghoff 2023 Utah State University

Dynamic Fecal Microbiota Transfer From Mice With Western Diet-Induced Severe Colitis And Colon Tumorigenesis Did Not Exacerbate Colitis Symptoms Or Colon Tumorigenesis In Recipient Mice Fed Either The Ain93g Diet Or The Total Western Diet, Abby D. Benninghoff

Browse all Datasets

Consumption of the total Western diet (TWD) in mice has been shown to increase gut inflammation, promote colon tumorigenesis, and alter the fecal microbiome composition in mice as com-pared to mice fed a healthy diet, AIN93G (AIN). However, it is unclear whether the gut micro-biome contributes directly to colitis-associated CRC in this model. The objective of this study was to determine whether dynamic fecal microbiota transfer (FMT) from host mice fed either AIN or TWD basal diets would alter colitis symptoms or colitis-associated CRC in recipient mice, which were fed either AIN or TWD directly using a 2x2 factorial experiment …


Smokejumper Obituary: Tucker, William Dinwiddie “Bill” (Missoula 1950), National Smokejumper Association 2023 Eastern Washington University

Smokejumper Obituary: Tucker, William Dinwiddie “Bill” (Missoula 1950), National Smokejumper Association

Smokejumper Obituaries

No abstract provided.


Digital Commons powered by bepress