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Articles 1 - 20 of 20
Full-Text Articles in Life Sciences
A Method For Estimating Marine Habitat Values Based On Fish Guilds, With Comparisons Between Sites In The Southern California Bight, Alan Bond, John Stephens, Daniel Pondella, James Allen, Mark Helvey
A Method For Estimating Marine Habitat Values Based On Fish Guilds, With Comparisons Between Sites In The Southern California Bight, Alan Bond, John Stephens, Daniel Pondella, James Allen, Mark Helvey
Alan B. Bond
Habitat valuation is an essential tool for tracking changes in habitat quality and in adjudicating environmental mitigation. All current methods for estimating habitat values of coastal marine sites rely heavily on the opinion of experts or on data variables that can readily be manipulated to influence the outcome. As a result, unbiased, quantitative comparisons between the values of different marine habitats are generally unavailable. We report here on a robust, objective technique for the valuation of marine habitats that makes use of data that are commonly gathered in surveys of marine fish populations: density, fidelity, and mean size. To insure …
Monogenic Control Of Iris Coloration In The January Tetra (Hemigrammus Hyanuary Characidae), Jack Frankel
Monogenic Control Of Iris Coloration In The January Tetra (Hemigrammus Hyanuary Characidae), Jack Frankel
Jack Frankel
Protection From Oxidative Stress–Induced Apoptosis In Cortical Neuronal Cultures By Iron Chelators Is Associated With Enhanced Dna Binding Of Hypoxia-Inducible Factor-1 And Atf-1/Creb And Increased Expression Of Glycolytic Enzymes, P21waf1/Cip1, And Erythropoietin, Kevin O'Donovan
Kevin O'Donovan
No abstract provided.
The Egr Family Of Transcription-Regulatory Factors: Progress At The Interface Of Molecular And Systems Neuroscience, Kevin O'Donovan
The Egr Family Of Transcription-Regulatory Factors: Progress At The Interface Of Molecular And Systems Neuroscience, Kevin O'Donovan
Kevin O'Donovan
No abstract provided.
Phd Thesis (Doctorat De Spécialité): Université De Ouagadougou, 1999. Dr. Mamoudou H. Dicko. Purification Et Propriétés Physico-Chimiques Des Enzymes De Curculigo Pilosa, Gladiolus Klattianus Et Boscia Senegalensis Catalysant L'Hydrolyse Des Polysaccharides (Amidon Et Béta-Glucanes), Mamoudou H. Dicko Prof.
Pr. Mamoudou H. DICKO, PhD
The objective of this study was the research of novel and inexpensive sources of polysaccharides degrading enzymes such as amylases and glucanases from local plants in order to justify their biotechnological applications. The isolation of two l3-amylases and an endo-1,3-ß-D-glucanase was reached using common protein purification methods such as buffer extraction, ammonium sulfate fractionation, ionexchange and gel filtration chromatographies. The methods used were simple and easily reproducible, suggesting the possibilfty of large-scale production. ln the crude extract of Curculigo pilosa tuber, only ß-amylase was detected as starch degrading enzyme and its activity was approximately 282 Uig of fresh material. The …
A Method For Estimating Marine Habitat Values Based On Fish Guilds, With Comparisons Between Sites In The Southern California Bight, Alan B. Bond, John S. Stephens, Daniel J. Pondella Ii, James M. Allen, Mark Helvey
A Method For Estimating Marine Habitat Values Based On Fish Guilds, With Comparisons Between Sites In The Southern California Bight, Alan B. Bond, John S. Stephens, Daniel J. Pondella Ii, James M. Allen, Mark Helvey
Daniel Pondella
Habitat valuation is an essential tool for tracking changes in habitat quality and in adjudicating environmental mitigation. All current methods for estimating habitat values of coastal marine sites rely heavily on the opinion of experts or on data variables that can readily be manipulated to influence the outcome. As a result, unbiased, quantitative comparisons between the values of different marine habitats are generally unavailable. We report here on a robust, objective technique for the valuation of marine habitats that makes use of data that are commonly gathered in surveys of marine fish populations: density, fidelity, and mean size. To insure …
Genome-Wide Bioinformatic And Molecular Analysis Of Introns In Saccharomyces Cerevisiae, Marc Spingola, Leslie Grate, David Haussler, Manuel Ares
Genome-Wide Bioinformatic And Molecular Analysis Of Introns In Saccharomyces Cerevisiae, Marc Spingola, Leslie Grate, David Haussler, Manuel Ares
Marc Spingola
Growing Pollen Tubes Possess A Constitutive Alkaline Band In The Clear Zone And A Growth-Dependent Acidic Tip, Joseph Kunkel, J, Feijo, J. Sainhas, G. Hackett, P. Hepler
Growing Pollen Tubes Possess A Constitutive Alkaline Band In The Clear Zone And A Growth-Dependent Acidic Tip, Joseph Kunkel, J, Feijo, J. Sainhas, G. Hackett, P. Hepler
Joseph Kunkel
Using both the proton selective vibrating electrode to probe the extracellular currents and ratiometric wide-field fluorescence microscopy with the indicator 2′,7′-bis-(2-carboxyethyl)-5-(and-6)-carboxyfluorescein (BCECF)-dextran to image the intracellular pH, we have examined the distribution and activity of protons (H+) associated with pollen tube growth. The intracellular images reveal that lily pollen tubes possess a constitutive alkaline band at the base of the clear zone and an acidic domain at the extreme apex. The extracellular observations, in close agreement, show a proton influx at the extreme apex of the pollen tube and an efflux in the region that corresponds to the position of …
Graded Functional Activation In The Visuo-Spatial System With The Amount Of Task Demand, Patricia Carpenter, Marcel Just, Timothy Keller, William Eddy, Keith Thulborn
Graded Functional Activation In The Visuo-Spatial System With The Amount Of Task Demand, Patricia Carpenter, Marcel Just, Timothy Keller, William Eddy, Keith Thulborn
Marcel Adam Just
No abstract provided.
Ampa Receptors In Epilepsy And As Targets For Antiepileptic Drugs, Michael A. Rogawski, Sean D. Donevan
Ampa Receptors In Epilepsy And As Targets For Antiepileptic Drugs, Michael A. Rogawski, Sean D. Donevan
Michael A. Rogawski
No abstract provided.
Inhibition Of Alpha-Smooth Muscle Actin Expression In An In Vitro Wound Healing Model By Certain Antibiotics, Pingyang Yu, George W. Dombi, Angela L. Vlahos, Anna M. Ledgerwood Md, Charles E. Lucas Md
Inhibition Of Alpha-Smooth Muscle Actin Expression In An In Vitro Wound Healing Model By Certain Antibiotics, Pingyang Yu, George W. Dombi, Angela L. Vlahos, Anna M. Ledgerwood Md, Charles E. Lucas Md
George Dombi
No abstract provided.
Lateral Hypothalamic Nmda Receptor Subunits Nr2a And/Or Nr2b Mediate Eating: Immunochemical/Behavioral Evidence, Arshad Khan, Margarita C. Curras, Jennifer Dao, Faizi A. Jamal, Rishi K. Goel, Elizabeth R. Gillard, Stefany D. Wolfsohn, B. Glenn Stanley
Lateral Hypothalamic Nmda Receptor Subunits Nr2a And/Or Nr2b Mediate Eating: Immunochemical/Behavioral Evidence, Arshad Khan, Margarita C. Curras, Jennifer Dao, Faizi A. Jamal, Rishi K. Goel, Elizabeth R. Gillard, Stefany D. Wolfsohn, B. Glenn Stanley
Arshad M. Khan, Ph.D.
No abstract provided.
Genetic Variation In Geographical Populations Of Western And Mexican Corn Rootworm., Allen L. Szalanski, Richard L. Roehrdanz, David B. Taylor, Lawrence Chandler
Genetic Variation In Geographical Populations Of Western And Mexican Corn Rootworm., Allen L. Szalanski, Richard L. Roehrdanz, David B. Taylor, Lawrence Chandler
David B. Taylor
Genetic variation in the nuclear rDNA ITS1 region of western corn rootworm, Diabrotica virgifera virgifera (WCR), and Mexican corn rootworm, D. v. zeae (MCR) was studied. Two sites were detected which differentiated WCR and MCR in the 642-base sequence. Polymerase chain reaction–restriction fragment length polymorphism (PCR-RFLP) analysis of the first internal transcribed spacer region (ITS1) sequence revealed no variation within or among the twelve WCR and two MCR populations. PCR-RFLP of 75% of the mitochondrial DNA genome detected one significant polymorphic site out of the approximately 190 restriction sizes observed in WCR. The polymorphism did not differentiate geographical populations of …
Uptake Of Dissolved Free Amino Acids By Northern Quahogs, Mercenaria Mercenaria, And Its Relative Importance To Organic Nitrogen Deposition In Narragansett Bay, Rhode Island, Michael A. Rice
Michael A Rice
Studies were undertaken to determine the relationship between size of northern quahogs Mercenaria mercenaria and the rate at which they transport aspartic acid. Quahogs ranging from 25 to 103 mm valve length were collected in Narragansett Bay and placed in seawater aquaria (27 ppt, 20 deg C) and allowed to pump actively. Uptake experiments were carried out using 1 umol/L C(14) radiolabeled aspartic acid. Aspartate transport rates in umol/h can be related to valve length by the allometric equation with a = 24.32 and b = 0.905 when valve length is in mm. In May 1990, near bottom samples of …
Time Course Of Fmri-Activation In Language And Spatial Networks During Sentence Comprehension, Patricia A. Carpenter, Marcel Adam Just, Timothy A. Keller, William F. Eddy, Keith R. Thulborn
Time Course Of Fmri-Activation In Language And Spatial Networks During Sentence Comprehension, Patricia A. Carpenter, Marcel Adam Just, Timothy A. Keller, William F. Eddy, Keith R. Thulborn
Marcel Adam Just
No abstract provided.
The Genetics And Evolution Of The Mariner Transposable Element In Drosophila Simulans: Worldwide Distribution And Experimental Population Dynamics, Amy L. Russell, R. C. Woodruff
The Genetics And Evolution Of The Mariner Transposable Element In Drosophila Simulans: Worldwide Distribution And Experimental Population Dynamics, Amy L. Russell, R. C. Woodruff
Amy L. Russell
Plasticity Of Language-Related Brain Function During Recovery From Strok, Keith R. Thulborn, Patricia A. Carpenter, Marcel Adam Just
Plasticity Of Language-Related Brain Function During Recovery From Strok, Keith R. Thulborn, Patricia A. Carpenter, Marcel Adam Just
Marcel Adam Just
No abstract provided.
Computational Modeling Of High-Level Cognition And Brain Function, Marcel Adam Just, Patricia A. Carpenter, Sashank Varma
Computational Modeling Of High-Level Cognition And Brain Function, Marcel Adam Just, Patricia A. Carpenter, Sashank Varma
Marcel Adam Just
No abstract provided.
Relationship Between The Bacillus Subtilis Clades Associated With Strains 168 And W23: A Proposal For B. Subtilis Subsp. Subtilis And B. Subtilis Subsp. Spizizenii, L. K. Nakamura, M. S. Roberts, Frederick M. Cohan
Relationship Between The Bacillus Subtilis Clades Associated With Strains 168 And W23: A Proposal For B. Subtilis Subsp. Subtilis And B. Subtilis Subsp. Spizizenii, L. K. Nakamura, M. S. Roberts, Frederick M. Cohan
Frederick M. Cohan
No abstract provided.
Dna Sequence Similarity Requirements For Interspecific Recombination In Bacillus, J. Majewski, Frederick M. Cohan
Dna Sequence Similarity Requirements For Interspecific Recombination In Bacillus, J. Majewski, Frederick M. Cohan
Frederick M. Cohan
No abstract provided.