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2008

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Articles 31 - 51 of 51

Full-Text Articles in Life Sciences

Adding Ecosystem Function To Agent-Based Land Use Models, Vineet Yadav, S Del Grosso, William Parton, George Malanson Dec 2007

Adding Ecosystem Function To Agent-Based Land Use Models, Vineet Yadav, S Del Grosso, William Parton, George Malanson

George P Malanson

The objective of this paper is to examine issues in the inclusion of simulations of ecosystem functions in agent-based models of land use decision-making,


Applying The Limiting Resource Model To Plant Tolerance Of Apical Meristem Damage, Warren Abrahamson, M.J. Wise Dec 2007

Applying The Limiting Resource Model To Plant Tolerance Of Apical Meristem Damage, Warren Abrahamson, M.J. Wise

Warren G. Abrahamson, II

No abstract provided.


Effect Of Statins On Serum Apolipoprotein J And Paraoxonase-1 Levels In Patients With Ischemic Heart Disease Undergoing Coronary Angiography, Mark Wilson, Dimitri Mikhailidis, Maria Poulakou, Despina Perrea, Kosmas Paraskevas, Dimitrios Iliopoulos, Serafim Tsitsilonis, Ioannis Vlachos, Sonia-Athena Karabina Dec 2007

Effect Of Statins On Serum Apolipoprotein J And Paraoxonase-1 Levels In Patients With Ischemic Heart Disease Undergoing Coronary Angiography, Mark Wilson, Dimitri Mikhailidis, Maria Poulakou, Despina Perrea, Kosmas Paraskevas, Dimitrios Iliopoulos, Serafim Tsitsilonis, Ioannis Vlachos, Sonia-Athena Karabina

Mark R Wilson

No abstract provided.


Gene Expression Reveals Unique Skeletal Patterning In The Limb Of The Direct-Developing Frog, Eleutherodactylus Coqui, Ryan Kerney, James Hanken Dec 2007

Gene Expression Reveals Unique Skeletal Patterning In The Limb Of The Direct-Developing Frog, Eleutherodactylus Coqui, Ryan Kerney, James Hanken

Ryan Kerney

The growing field of skeletal developmental biology provides new molecular markers for the cellular pre- cursors of cartilage and bone. These markers enable resolution of early features of skeletal development that are otherwise undetectable through conventional staining tech- niques. This study investigates mRNA distributions of skeletal regulators runx2 and sox9 along with the cartilage-dominant collagen 2a1 (col2a1) in embryonic limbs of the direct- developing anuran, Eleutherodactylus coqui. To date, distri- butions of these genes in the limb have only been examined in studies of the two primary amniote models, mouse and chicken. In E. coqui, expression of transcription factors runx2 …


Carotenoid Intake Does Not Mediate A Relationship Between Reactive Oxygen Species And Bright Colouration: Experimental Test In A Lizard, Mark Wilson, Mats Olsson, Tobias Uller, Caroline Isaksson, Beth Mott Dec 2007

Carotenoid Intake Does Not Mediate A Relationship Between Reactive Oxygen Species And Bright Colouration: Experimental Test In A Lizard, Mark Wilson, Mats Olsson, Tobias Uller, Caroline Isaksson, Beth Mott

Mark R Wilson

No abstract provided.


Free Radicals Run In Lizard Families, Mark Wilson, Mats Olsson, Tobias Uller, Caroline Isaksson, Beth Mott, Mo Healey, Wanger Thomas Dec 2007

Free Radicals Run In Lizard Families, Mark Wilson, Mats Olsson, Tobias Uller, Caroline Isaksson, Beth Mott, Mo Healey, Wanger Thomas

Mark R Wilson

No abstract provided.


Expression Of T-Cell Receptor Genes During Early T-Cell Development, Janice Abbey, Helen O'Neill Dec 2007

Expression Of T-Cell Receptor Genes During Early T-Cell Development, Janice Abbey, Helen O'Neill

Helen O'Neill

Lymphoid cell development is an ordered process that begins in the embryo in specific sites and progresses through multiple differentiative steps to production of T- and B-cells. Lymphoid cell production is marked by the rearrangement process, which gives rise to mature cells expressing antigen-specific T-cell receptors (TCR) and immunoglobulins (Ig). While most transcripts arising from TCR or Ig loci reflect fully rearranged genes, germline transcripts have been identified, but these have always been thought to have no specific purpose. Germline transcription from either unrearranged TCR or unrearranged Ig loci was commonly associated with an open chromatin configuration during VDJ recombination. …


Phylogenomic Evidence For Multiple Losses Of Flight In Ratite Birds, Sushma Reddy Dec 2007

Phylogenomic Evidence For Multiple Losses Of Flight In Ratite Birds, Sushma Reddy

Sushma Reddy

No abstract provided.


Autism-Like Behavioral Phenotypes In Btbr Ttf/J Mice. Genes, Hewlet Mcfarlane Dec 2007

Autism-Like Behavioral Phenotypes In Btbr Ttf/J Mice. Genes, Hewlet Mcfarlane

Hewlet McFarlane

No abstract provided.


Coal Country Beeworks: An Experiment In Apiforestation, Tammy Horn Dec 2007

Coal Country Beeworks: An Experiment In Apiforestation, Tammy Horn

Tammy Horn

The Coal Country Beeworks promotes a fundamental principle: diverse economies depend on diverse landscapes. In order for the colonial status of Appalachia to change, the unique mesophytic forests that existed prior to mining need to be reestablished so local people can be beekeepers, honey producers, queen rearers,scientists, etc. In this way,the two-tier economy that has defined Appalachia for the past hundred years can be diversified.


The Effects Of Prenatal Stress On Motivation In The Rat Pup, Howard Cromwell Dec 2007

The Effects Of Prenatal Stress On Motivation In The Rat Pup, Howard Cromwell

Howard Casey Cromwell

Exposure to prenatal stress (PNS) has been shown to induce a set of psychological and behavioral changes in developing offspring. We used the rodent model to investigate whether PNS produces changes in the ability of the pup to express social motivation.We used a set of behavioral tasks including monitoring ultrasonic vocalizations after isolation, a conditioned place preference, and a novel and familiar odor approach test. Pregnant Long–Evans rats were exposed to an unpredictable, variable stressor twice daily during the third week of gestation. Isolation vocalizations were assessed on postnatal day (PND) 10. Pup affinity for the dam was evaluated on …


Rough- Shell Disease Of Penaeus Monodon Fabricius, 1798 In Grow-Out Ponds., A. Gopalakrishnan, M. Rajkumar, T. Vasanthan, Gary Martin, T. Balasubramanian Dec 2007

Rough- Shell Disease Of Penaeus Monodon Fabricius, 1798 In Grow-Out Ponds., A. Gopalakrishnan, M. Rajkumar, T. Vasanthan, Gary Martin, T. Balasubramanian

Gary Martin

Macrophytes, such as mangroves, salt marshes and sea grasses, constitute an important component of coastal domain (Kathiresan and Bingham, 2001; Kathiresan, 2007), but their role in carbon budget is neglected from accounts of the global ocean carbon cycle for the main reason that the marine vegetation occupies only less than 2% of the oceanic surface (Duarte and Cebrian, 1996). Moreover, the coastal macrophytes are being cleared and converted globally at alarming rates. For instance, the annual rate of loss in global mangroves was disturbingly high, 0.66%, during the years 2000–2005 (FAO, 2007).


Plant Hydraulics: New Discoveries In The Pipeline (Meeting Report), R. Pratt, A. Jacobsen, Gretchen North, L. Sack, H. Schenk Dec 2007

Plant Hydraulics: New Discoveries In The Pipeline (Meeting Report), R. Pratt, A. Jacobsen, Gretchen North, L. Sack, H. Schenk

Gretchen North

No abstract provided.


Ducking As A Means Of Resistance To Herbivory In Tall Goldenrod, Solidago Altissima, Warren Abrahamson, M.J. Wise Dec 2007

Ducking As A Means Of Resistance To Herbivory In Tall Goldenrod, Solidago Altissima, Warren Abrahamson, M.J. Wise

Warren G. Abrahamson, II

No abstract provided.


Macroecology Of Microbes – Biogeography Of The Glomeromycota, Veer Chaudhary Dec 2007

Macroecology Of Microbes – Biogeography Of The Glomeromycota, Veer Chaudhary

V. Bala Chaudhary

No abstract provided.


Inheriting Inherit The Wind: Debating The Play As A Teaching Tool, Edward Larson, David Depew, Ronald Isetti Dec 2007

Inheriting Inherit The Wind: Debating The Play As A Teaching Tool, Edward Larson, David Depew, Ronald Isetti

David J Depew

No abstract provided.


Testing The Nutrition Hypothesis For The Adaptive Nature Of Insect Galls: Does A Non-Adapted Herbivore Perform Better In Galls?, Warren Abrahamson, S.E. Diamond, C.P. Blair Dec 2007

Testing The Nutrition Hypothesis For The Adaptive Nature Of Insect Galls: Does A Non-Adapted Herbivore Perform Better In Galls?, Warren Abrahamson, S.E. Diamond, C.P. Blair

Warren G. Abrahamson, II

No abstract provided.


Colorado Potato Beetle Resistance To Insecticides, Andrei Alyokhin, Mitchell Baker, David Mota-Sanchez, Galen Dively, Edward Grafius Dec 2007

Colorado Potato Beetle Resistance To Insecticides, Andrei Alyokhin, Mitchell Baker, David Mota-Sanchez, Galen Dively, Edward Grafius

Andrei Alyokhin

The Colorado potato beetle, Leptinotarsa decemlineata (Say), is widely regarded as the most important insect defoliator of potatoes. Its current range covers about 16 million km2 in North America, Europe, and Asia and continues to expand. This insect has a complicated and diverse life history, which is well-suited to agricultural environments, and makes it a complex and challenging pest to control. Dispersal, closely connected with diapause, feeding, and reproduction, allow the Colorado potato beetle to employ "bet-hedging" reproductive strategies, distributing its offspring in both space (within and between fields) and time (within and between years). The Colorado potato beetle played …


Protease Activation Of A2-Macroglobulin Modulates A Chaperone-Like Action With Broad Specificity, Katie French, Justin Yerbury, Mark Wilson Dec 2007

Protease Activation Of A2-Macroglobulin Modulates A Chaperone-Like Action With Broad Specificity, Katie French, Justin Yerbury, Mark Wilson

Mark R Wilson

α2-Macroglobulin (α2M) is a major human blood glycoprotein best known for its ability to inhibit a broad spectrum of proteases by a unique trapping method. This action induces an “activated” conformation of α2M with an exposed binding site for the low density lipoprotein receptor, facilitating clearance of α2M-protease complexes from the body. This report establishes that protease activation also modulates a potent chaperone-like action of α2M which has broad specificity for proteins partly unfolded as a result of heat or oxidative stress. Protease-mediated activation of α2M abolishes its chaperone-like activity. However, native α2M is able to form soluble complexes with …


Understanding Evaluation Of Faces On Social Dimensions., Alex Todorov, Said Chris, Andrew Engell, Nicholas Oosterhof Dec 2007

Understanding Evaluation Of Faces On Social Dimensions., Alex Todorov, Said Chris, Andrew Engell, Nicholas Oosterhof

Andrew Engell

n/a


Structural And Dynamic Basis Of Phospholamban And Sarcolipin Inhibition Of Ca2+-Atpase, Nathaniel J. Traaseth, Kim N. Ha, Raffaello Verardi, Lei Shi, Jarrod J. Buffy, Larry R. Masterson, Gianluigi Veglia Dec 2007

Structural And Dynamic Basis Of Phospholamban And Sarcolipin Inhibition Of Ca2+-Atpase, Nathaniel J. Traaseth, Kim N. Ha, Raffaello Verardi, Lei Shi, Jarrod J. Buffy, Larry R. Masterson, Gianluigi Veglia

Larry Masterson

Phospholamban (PLN) and sarcolipin (SLN) are two single-pass membrane proteins that regulate Ca2+-ATPase (SERCA), an ATP-driven pump that translocates calcium ions into the lumen of the sarcoplasmic reticulum, initiating muscle relaxation. Both proteins bind SERCA through intramembrane interactions, impeding calcium translocation. While phosphorylation of PLN at Ser-16 and/or Thr-17 reestablishes calcium flux, the regulatory mechanism of SLN remains elusive. SERCA has been crystallized in several different states along the enzymatic reaction coordinates, providing remarkable mechanistic information; however, the lack of high-resolution crystals in the presence of PLN and SLN limits the current understanding of the regulatory mechanism. This …