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Articles 1 - 30 of 112277

Full-Text Articles in Life Sciences

Recent Decline Of Lowland Populations Of The Western Gray Squirrel In The Los Angeles Area Of Southern California, Daniel S. Cooper, Alan Muchlinski Jul 2105

Recent Decline Of Lowland Populations Of The Western Gray Squirrel In The Los Angeles Area Of Southern California, Daniel S. Cooper, Alan Muchlinski

Bulletin of the Southern California Academy of Sciences

We provide an overview of the distribution of lowland and otherwise isolated populations of the western gray squirrel (Sciurus griseus) in the Los Angeles area of southern California, an area that has experienced a recent and ongoing invasion by the non-native eastern fox squirrel (Sciurus niger), an urban-adapted species introduced a century ago. Away from its strongholds in the western Santa Monica Mountains, San Gabriel Mountains, and Santa Ana Mountains, the western gray squirrel is resident locally in both the Santa Susana and the Verdugo Mountains, in Griffith Park, in low hills at the eastern periphery of the San Gabriel ...


An Orange Fluorescent Protein Tagging System For Real-Time Pollen Tracking, J. Rice, R. Mundell, R. Millwood, O. Chambers, L. Abercrombie, H. Davies, C. Stewart Dec 2102

An Orange Fluorescent Protein Tagging System For Real-Time Pollen Tracking, J. Rice, R. Mundell, R. Millwood, O. Chambers, L. Abercrombie, H. Davies, C. Stewart

C. Neal Stewart Jr.

Background Monitoring gene flow could be important for future transgenic crops, such as those producing plant-made-pharmaceuticals (PMPs) in open field production. A Nicotiana hybrid (Nicotiana. tabacum × Nicotiana glauca) shows limited male fertility and could be used as a bioconfined PMP platform. Effective assessment of gene flow from these plants is augmented with methods that utilize fluorescent proteins for transgenic pollen identification. Results We report the generation of a pollen tagging system utilizing an orange fluorescent protein to monitor pollen flow and as a visual assessment of transgene zygosity of the parent plant. This system was created to generate a tagged ...


Effect Of External Energy On The Atomic, Crystalline, And Powder Characteristics Of Antimony And Bismuth Powders, Mahendra Kumar Trivedi Sep 2099

Effect Of External Energy On The Atomic, Crystalline, And Powder Characteristics Of Antimony And Bismuth Powders, Mahendra Kumar Trivedi

Mahendra Kumar Trivedi

Next to atoms and molecules the powders are the smallest state of matter available in high purities and large quantities. The effect of any external energy on the shape, morphology and structure can thus be studied with relative ease. The present investigation deals with the effect of a non-contact external energy on the powders of antimony and bismuth. The characteristics of powders treated by external energy are compared with the as received powders (control). The average particle sizes, d50 and d99, the sizes below which 99% of the particles are present showed significant increase and decrease indicating that the energy ...


Molecular Biology Of A Surface-Exposed Protein Family Of Bartonella Bacilliformis, Hannah Fay Jan 2017

Molecular Biology Of A Surface-Exposed Protein Family Of Bartonella Bacilliformis, Hannah Fay

Undergraduate Theses and Professional Papers

Bartonella bacilliformis is a gram negative alpha-proteobacterium native to the Andes of South America. Bartonella causes Carrion’s disease, a potentially life threatening disease transmitted by the sand fly. It has a mortality rate of 88% when untreated and 10% when treated. Diagnostics and control measures for the disease are underdeveloped and no vaccine is available. Recent outbreaks indicate that the range of the pathogen is increasing with nearly 1.7 million people in western South America at risk. Little is known about the epidemiology and pathogenesis of B. bacilliformis. Recent research done by UC San Diego found a paralogous ...


Effect Of Trees On Biotopes And Human Psyche, Gabriel Leiner Dec 2016

Effect Of Trees On Biotopes And Human Psyche, Gabriel Leiner

Gabriel Leiner

My latest research is focused on measuring the positive effects that various types of trees can have on a biological environment and humans on planet Earth. I'm very excited to be conducting this research within the scope of the unique geographic features found exclusively on the eight islands of Hawaii.


J. C. Penney: The Man, The Store And American Agriculture (Under Contract), David Kruger Dec 2016

J. C. Penney: The Man, The Store And American Agriculture (Under Contract), David Kruger

David Delbert Kruger

No abstract provided.


Cover Crop Effect On Subsequent Wheat Yield In The Central Great Plains, David Nielsen, Drew Lyon, Robert Higgins, Gary Hergert, Johnathon Holman, Merle Vigil Oct 2016

Cover Crop Effect On Subsequent Wheat Yield In The Central Great Plains, David Nielsen, Drew Lyon, Robert Higgins, Gary Hergert, Johnathon Holman, Merle Vigil

David C. Nielsen

Crop production systems in the water-limited environment of the semiarid central Great Plains may not have potential to profitably use cover crops because of lowered subsequent wheat (Triticum asestivum L.) yields following the cover crop. Mixtures have reportedly shown less yield-reducing effects on subsequent crops than single-species plantings. This study was conducted to determine winter wheat yields following both mixtures and single-species plantings of spring-planted cover crops. The study was conducted at Akron, CO, and Sidney, NE, during the 2012–2013 and 2013–2014 wheat growing seasons under both rainfed and irrigated conditions. Precipitation storage efficiency before wheat planting, wheat ...


1. Types Of Alignment: Presentations & Demos Assignment, Sarah O'Leary-Driscoll Oct 2016

1. Types Of Alignment: Presentations & Demos Assignment, Sarah O'Leary-Driscoll

Sequence Alignments

Pairwise Alignment: DNA

Pairwise Alignment: Protein

Multiple Sequence Alignment: DNA

Multiple Sequence Alignment: Protein


Investigating Genetic Differences Between Strains Of Janthinobacterium Lividum On Salamanders And In Their Environment, Rhiannon E. Black Aug 2016

Investigating Genetic Differences Between Strains Of Janthinobacterium Lividum On Salamanders And In Their Environment, Rhiannon E. Black

University of Tennessee Honors Thesis Projects

No abstract provided.


Atlantic Salmon Physiological And Immune Response To Amoebic Gill Disease And Insight Into The Biology Of The Amoeba, Ottavia Benedicenti Jun 2016

Atlantic Salmon Physiological And Immune Response To Amoebic Gill Disease And Insight Into The Biology Of The Amoeba, Ottavia Benedicenti

2nd International Conference of Fish & Shellfish Immunology

No abstract provided.


Constitutively Overexpressed Type I Interferon Transgenic Medaka Fish Down-Regulate The Antiviral Response, Shun Maekawa Jun 2016

Constitutively Overexpressed Type I Interferon Transgenic Medaka Fish Down-Regulate The Antiviral Response, Shun Maekawa

2nd International Conference of Fish & Shellfish Immunology

No abstract provided.


Chronic Saline Exposures Interfere With Basal And Induced Immunity In Striped Catfish (Pangasianodon Hypophthalmus, Sauvage) Exposed To Virulent Strain Of Edwardsiella Ictaluri., Mélodie Schmitz Jun 2016

Chronic Saline Exposures Interfere With Basal And Induced Immunity In Striped Catfish (Pangasianodon Hypophthalmus, Sauvage) Exposed To Virulent Strain Of Edwardsiella Ictaluri., Mélodie Schmitz

2nd International Conference of Fish & Shellfish Immunology

No abstract provided.


Zebrafish As A Model Host For Studies Of Piscirickettsia Salmonis And Its Outer Membrane Vesicles, Julia Isabel Tandberg Ph.D Jun 2016

Zebrafish As A Model Host For Studies Of Piscirickettsia Salmonis And Its Outer Membrane Vesicles, Julia Isabel Tandberg Ph.D

2nd International Conference of Fish & Shellfish Immunology

No abstract provided.


Recombinant Ferritin-H Induces Immunosupression In European Sea Bass Larvae (Dicentrarchus Labrax) Rather Than Immunostmulation And Protection Against Vibrio Anguillarum, Daisy Vanrompay Jun 2016

Recombinant Ferritin-H Induces Immunosupression In European Sea Bass Larvae (Dicentrarchus Labrax) Rather Than Immunostmulation And Protection Against Vibrio Anguillarum, Daisy Vanrompay

2nd International Conference of Fish & Shellfish Immunology

No abstract provided.


A Comparative Immune Response To Piscirickettsia Salmonis Grown In Alternative Media, Daniel Makrinos Jun 2016

A Comparative Immune Response To Piscirickettsia Salmonis Grown In Alternative Media, Daniel Makrinos

2nd International Conference of Fish & Shellfish Immunology

No abstract provided.


Tumor Necrosis Factor Receptor-Associated Factor 6 (Traf6) From Mud Crab Participates In Anti-Lipopolysaccharide Factors (Alfs) Gene Expression, Shengkang Li Jun 2016

Tumor Necrosis Factor Receptor-Associated Factor 6 (Traf6) From Mud Crab Participates In Anti-Lipopolysaccharide Factors (Alfs) Gene Expression, Shengkang Li

2nd International Conference of Fish & Shellfish Immunology

No abstract provided.


Morphological Characterization Via Light And Electron Microscopy Of Atlantic Jackknife Clam (Ensis Directus) Hemocytes, Brian Preziosi, Timothy Bowden Jun 2016

Morphological Characterization Via Light And Electron Microscopy Of Atlantic Jackknife Clam (Ensis Directus) Hemocytes, Brian Preziosi, Timothy Bowden

2nd International Conference of Fish & Shellfish Immunology

No abstract provided.


Relationships Between Cell Migration, Adhesion, Apoptosis And Gene Expression In Free And Attached Peritoneal Cells In Turbot After Administration Of Vaccines Containing P. Dicentrarchi Antigen And Different Adjuvants, Jesus Lamas Jun 2016

Relationships Between Cell Migration, Adhesion, Apoptosis And Gene Expression In Free And Attached Peritoneal Cells In Turbot After Administration Of Vaccines Containing P. Dicentrarchi Antigen And Different Adjuvants, Jesus Lamas

2nd International Conference of Fish & Shellfish Immunology

No abstract provided.


Diurnal And Seasonal Rhythm Of Total Antioxidant Capacity And Reactive Oxygen And Nitrogen Species In Atlantic Salmon, Nicholas C. Fargnoli Jun 2016

Diurnal And Seasonal Rhythm Of Total Antioxidant Capacity And Reactive Oxygen And Nitrogen Species In Atlantic Salmon, Nicholas C. Fargnoli

2nd International Conference of Fish & Shellfish Immunology

No abstract provided.


Supplemental Action Learning Workshops: Understanding The Effects Of Independent And Cooperative Workshops On Students’ Knowledge, Kathryn M. Morris May 2016

Supplemental Action Learning Workshops: Understanding The Effects Of Independent And Cooperative Workshops On Students’ Knowledge, Kathryn M. Morris

Dissertations

Community colleges enroll more than half of the undergraduate population in the United States, thereby retaining students of varying demographics with extracurricular demands differing from traditional four-year university students. Often in a collegiate lecture course, students are limited in their abilities to absorb and process information presented by their instructors due to content-specific cognitive gaps between the instructor and the student (Preszler, 2009). Research has shown implementation of instructor-facilitated action learning workshops as supplemental instruction may help bridge these cognitive gaps allowing better student conceptualization and dissemination of knowledge (Drake, 2001; Fullilove & Treisman, 1990; Preszler, 2009; Udovick et al., 2002).

The purpose ...


Heredity In The Epigenetic Era: Are We Facing A Politics Of Reproductive Obligations?, Michael J. Crawford Apr 2016

Heredity In The Epigenetic Era: Are We Facing A Politics Of Reproductive Obligations?, Michael J. Crawford

Biological Sciences Publications

Recent research in the emerging field of epigenetics has implications with the potential to re-ignite acrimony in the discourse of reproductive rights, medical ethics, and the role of the state in our homes and in our lives. For scientists, epigenetics has profoundly realigned our understanding of heredity: epigenetics provides a mechanism through which the environmental challenges met in one generation can be inscribed and transmitted to future offspring. Although both genetic parents have the potential to transmit heritable epigenetic changes to their offspring, mothers have a particularly potent effect because nutrition in the uterine environment can exert a supplemental effect ...


Parthenocissus Quinquefolia (L.) Planch. Feb 2016

Parthenocissus Quinquefolia (L.) Planch.

Specimens by Name

No abstract provided.


Vitis Aestivalis F.Michx., Elisabet Ore Feb 2016

Vitis Aestivalis F.Michx., Elisabet Ore

Specimens by Name

No abstract provided.


Vitis Aestivalis F.Michx., Elisabet Ore Feb 2016

Vitis Aestivalis F.Michx., Elisabet Ore

Specimens by Name

No abstract provided.


Parthenocissus Quinquefolia (L.) Planch., Elisabet Ore Feb 2016

Parthenocissus Quinquefolia (L.) Planch., Elisabet Ore

Specimens by Name

No abstract provided.


Vitis Vulpina L., Mcclain Feb 2016

Vitis Vulpina L., Mcclain

Specimens by Name

No abstract provided.


Vitis Aestivalis F.Michx., John E. Ebinger Feb 2016

Vitis Aestivalis F.Michx., John E. Ebinger

Specimens by Name

No abstract provided.


Parthenocissus Quinquefolia (L.) Planch., John E. Ebinger Feb 2016

Parthenocissus Quinquefolia (L.) Planch., John E. Ebinger

Specimens by Name

No abstract provided.


How Do Fat Cells Work?, Stacey Cahn, Christopher Adams Feb 2016

How Do Fat Cells Work?, Stacey Cahn, Christopher Adams

Stacey C. Cahn

Basic facts about fat.


Midwest Vision For Sustainable Fuel Production, Kenneth Moore, Stuart Birrell, Robert Brown, Michael Caster, Jill Euken, H. Mark Hanna, Dermot Hayes, Jason Hill, Keri Jacobs, Catherine Kling, David Laird, Robert Mitchell, Patrick Murphy, D. Raj Raman, Charles Schwab, Kevin Shinners, Kenneth Vogel, Jeffrey Volenic Feb 2016

Midwest Vision For Sustainable Fuel Production, Kenneth Moore, Stuart Birrell, Robert Brown, Michael Caster, Jill Euken, H. Mark Hanna, Dermot Hayes, Jason Hill, Keri Jacobs, Catherine Kling, David Laird, Robert Mitchell, Patrick Murphy, D. Raj Raman, Charles Schwab, Kevin Shinners, Kenneth Vogel, Jeffrey Volenic

Keri Jacobs

This article charts the progress of CenUSA Bioenergy, a USDA-NIFA-AFRI coordinated agricultural project focused on the North Central region of the US. CenUSA’s vision is to develop a regional system for producing fuels and other products from perennial grass crops grown on marginally productive land or land that is otherwise unsuitable for annual cropping. This article focuses on contributions CenUSA has made to nine primary systems needed to make this vision a reality: feedstock improvement; feedstock production on marginal land; feedstock logistics; modeling system performance; feedstock conversion into biofuels and other products; marketing; health and safety; education, and outreach ...