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Articles 1 - 30 of 469
Full-Text Articles in Life Sciences
Gene Signature Of Stromal Cells Which Support Dendritic Cell Development., Geneviève Despars, Pravin Periasamy, Jonathan Tan, Janice Abbey, Terence O'Neill, Helen O'Neill
Gene Signature Of Stromal Cells Which Support Dendritic Cell Development., Geneviève Despars, Pravin Periasamy, Jonathan Tan, Janice Abbey, Terence O'Neill, Helen O'Neill
Jonathan Tan
Spleen stromal cells are critical determinants of dendritic cell (DC) development in spleen. The spleen stromal line, namely STX3, supports DC differentiation in vitro from overlaid bone marrow cells while the lymph node stromal line, namely 2RL22, does not. Here we have characterised the hematopoietic support capacity of each stroma, and analyzed lineage origin of the stromal cell lines by gene profiling using microarrays. Stromal co-culture experiments were performed using bone marrow cells as a source of hematopoietic progenitors. A characteristic immature myeloid-like CD11c+CD11b+CD86+MHC-II−/loB220−CD8α− DC is produced after 14 days in STX3 cocultures, while 2RL22 cocultures produce only monocyte/macrophage-like cells. …
North Atlantic Vibrio Vulnificus Surveillance From Postharvest Oysters At A Us Shellfish Processing Facility, Kenneth Lavalley, Joseph Dealteris, Michael Rice, Marta Gomez-Chiarri
North Atlantic Vibrio Vulnificus Surveillance From Postharvest Oysters At A Us Shellfish Processing Facility, Kenneth Lavalley, Joseph Dealteris, Michael Rice, Marta Gomez-Chiarri
Marta Gomez-Chiarri
Postharvest surveillance for Vibrio vulnificus by a commercial processing facility was conducted from May 2001 to September 2003. Harvest areas included the Delaware Bay, Long Island Sound and Prince Edward Island. Occurrence followed a seasonal distribution. Low densities were observed in June, increased through August, and became rare by September. Given the ubiquitous nature of marine Vibrios, it was not surprising to find V. vulnificus everywhere, which was investigated. Observations confirmed the importance of strict time/temperature and product handling practices by shellfish harvesters, dealers and processors. Mishandling led to a potentially dangerous and uncharacteristically high V. vulnificus observation.
A Simple Spectrophotometric Streptavidin-Biotin Binding Assay Utilizing Biotin-4-Fluorescein., Mark Waner, David Mascotti
A Simple Spectrophotometric Streptavidin-Biotin Binding Assay Utilizing Biotin-4-Fluorescein., Mark Waner, David Mascotti
Mark J. Waner
A new assay for biotin binding capacity of Streptavidin (SA) is presented in this work. The assay is based on the large decrease in the extinction coefficient at 493 nm that accompanies binding of biotin-4-fluorescein (B4F) to SA. This decrease is attributed to formation of a charge transfer complex between the B4F-donor and one or more SA residues. We show that one may observe the stoichiometric binding via monitoring the absorbance at 493 nm using either SA or B4F as the titrant. The sensitivity of the assay is at the lower end of similar fluorimetric and photometric assays. Though the …
Proteome Of Geobacter Sulfurreducens Through Genome-Wide Expression Data And Sequence Analysis, Derek Lovley, Yan-Huai Ding, Kim Hixson, Muktak Aklujkar, Mary Lipton, Richard Smith, Tϋnde Mester
Proteome Of Geobacter Sulfurreducens Through Genome-Wide Expression Data And Sequence Analysis, Derek Lovley, Yan-Huai Ding, Kim Hixson, Muktak Aklujkar, Mary Lipton, Richard Smith, Tϋnde Mester
Muktak Aklujkar
No abstract provided.
Laser-Induced Photon-Branched Chain Reaction In A Chemically-Active Gas-Dispersed Medium, Thomas F. George, Renat R. Letfullin, Galen C. Duree
Laser-Induced Photon-Branched Chain Reaction In A Chemically-Active Gas-Dispersed Medium, Thomas F. George, Renat R. Letfullin, Galen C. Duree
Thomas George
Insig2 Gene Polymorphism Is Associated With Increased Subcutaneous Fat In Women And Poor Response To Resistance Training In Men, Funda Orkunoglu-Suer, Heather Gordish-Dressman, Priscilla Clarkson, Paul Thompson, Theodore Angelopoulos, Paul Godron, Niall Moyna, Linda Pescatello, Paul Visich, Robert Zoeller, Brennan Harmon, Richard Seip, Eric Hoffman, Joseph Devaney
Insig2 Gene Polymorphism Is Associated With Increased Subcutaneous Fat In Women And Poor Response To Resistance Training In Men, Funda Orkunoglu-Suer, Heather Gordish-Dressman, Priscilla Clarkson, Paul Thompson, Theodore Angelopoulos, Paul Godron, Niall Moyna, Linda Pescatello, Paul Visich, Robert Zoeller, Brennan Harmon, Richard Seip, Eric Hoffman, Joseph Devaney
Priscilla M. Clarkson
Background A common SNP upstream of the INSIG2 gene, rs7566605 (g.-10,1025G>C, Chr2:118,552,255, NT_022135.15), was reported to be associated with obesity (Body Mass Index, [BMI]) in a genome-wide association scan using the Framingham Heart Study but has not been reproduced in other cohorts. As BMI is a relatively insensitive measure of adiposity that is subject to many confounding variables, we sought to determine the relationship between the INSIG2 SNP and subcutaneous fat volumes measured by MRI in a young adult population. Methods We genotyped the INSIG2 SNP rs7566605 in college-aged population enrolled in a controlled resistance-training program, (the Functional Polymorphism …
Gokilaht®-S 5ec Testing On Culex Quinquefasciatus Say Larvae For An Early Detection In Esterase And Monooxygenase Resistance System, Soam Prakash, Gavendra Singh
Gokilaht®-S 5ec Testing On Culex Quinquefasciatus Say Larvae For An Early Detection In Esterase And Monooxygenase Resistance System, Soam Prakash, Gavendra Singh
Soam Prakash
Giant Sequoia Insect, Disease, And Ecosystem Interactions, Douglas D. Piirto
Giant Sequoia Insect, Disease, And Ecosystem Interactions, Douglas D. Piirto
Douglas D. Piirto
Individual trees of giant sequoia (Sequoia gigantea [Lindl.] Decne.) have demonstrated a capacity to attain both a long life and very large size. It is not uncommon to find old-growth giant sequoia trees in their native range that are 1,500 years old and over 15 feet in diameter at breast height. The ability of individual giant sequoia trees to survive over such long periods of time has often been attributed to the species high resistance to disease, insect, and fire damage. Such a statement, however, is a gross oversimplification, given broader ecosystem and temporal interactions. For example, why isn't there …
Efficacy Of Herbicide Application Methods Used To Control Tanoak (Lithocarpus Densiflorus) In An Uneven-Aged Coast Redwood Management Context, Douglas D. Piirto, Brenda Smith, Eric K. Huff, Scott T. Robinson
Efficacy Of Herbicide Application Methods Used To Control Tanoak (Lithocarpus Densiflorus) In An Uneven-Aged Coast Redwood Management Context, Douglas D. Piirto, Brenda Smith, Eric K. Huff, Scott T. Robinson
Douglas D. Piirto
Three methods of tanoak (Lithocarpus densiflorus [Hook. & Arn.] Rehd.) control involving the application of the amine or ester form of triclopyr were evaluated in this coast redwood uneven-aged forest management study of herbicides. A cut-stump application with the amine form of triclopyr (Garlon 3A), frill cut with the amine form of triclopyr, basal-bark (outer surface) with the ester form of triclopyr (Garlon 4), and an untreated control were replicated three times. The tanoak control results in Douglas-fir (Pseudotsuga menziesii [Mirb.] Franco) and/ or coast redwood (Sequoia sempervirens [D. Don] Endl.) predominated stands obtained in earlier studies …
Cost-Effective Fire Management For Southern California's Chaparral Wilderness: An Analytical Procedure, Chris A. Childers, Douglas D. Piirto
Cost-Effective Fire Management For Southern California's Chaparral Wilderness: An Analytical Procedure, Chris A. Childers, Douglas D. Piirto
Douglas D. Piirto
Fire management has always meant fire suppression to the managers of the chaparral covered southern California National Forests. Today, Forest Service fire management programs must be cost effective, while wilderness fire management objectives are aimed at recreating natural fire regimes. A cost-effectiveness analysis has been developed to compare fire management options for meeting these objectives in California's chaparral wilderness. This paper describes the analytical procedure using examples from a study currently being conducted for the Los Padres National Forest, and discusses some preliminary results.
Comparative Pollination Biology Of Sympatric And Allopatric Andean Iochroma (Solanaceae)1, Steven J. Hall, Stacy Dewitt Smith, Pablo R. Izquierdo, David A. Baum
Comparative Pollination Biology Of Sympatric And Allopatric Andean Iochroma (Solanaceae)1, Steven J. Hall, Stacy Dewitt Smith, Pablo R. Izquierdo, David A. Baum
Steven J. Hall
Field studies were conducted for 15 species of Iochroma Benth. and the nested genus Acnistus Schott to quantify the diversity of pollination systems and to assess the potential contribution of pollinator behavior to the persistence of closely related species in sympatry. We combined measures of pollinator visitation and pollen deposition to estimate the importance of major groups of pollinators for each species, and we calculated proportional similarity in the pollinator assemblage among species. We found that 12 species of Iochroma, encompassing a range of flower colors and sizes, were principally pollinated by hummingbirds and, in many cases, by the same …
Differential Requirements Of Two Reca Mutants For Constitutive Sos Expression In Escherichia Coli K-12, Steven Sandler, Jarukit Edward Long, Nicholas Renzette, Richard Centore
Differential Requirements Of Two Reca Mutants For Constitutive Sos Expression In Escherichia Coli K-12, Steven Sandler, Jarukit Edward Long, Nicholas Renzette, Richard Centore
Steven Sandler
Background Repairing DNA damage begins with its detection and is often followed by elicitation of a cellular response. In E. coli, RecA polymerizes on ssDNA produced after DNA damage and induces the SOS Response. The RecA-DNA filament is an allosteric effector of LexA auto-proteolysis. LexA is the repressor of the SOS Response. Not all RecA-DNA filaments, however, lead to an SOS Response. Certain recA mutants express the SOS Response (recAC) in the absence of external DNA damage in log phase cells. Methodology/Principal Findings Genetic analysis of two recAC mutants was used to determine the mechanism of constitutive SOS (SOSC) expression …
Flowability And Handling Characteristics Of Bulk Solids And Powders—A Review With Implications For Ddgs, V. Ganesan, Kurt A. Rosentrater, Kasiviswanathan Muthukumarappan
Flowability And Handling Characteristics Of Bulk Solids And Powders—A Review With Implications For Ddgs, V. Ganesan, Kurt A. Rosentrater, Kasiviswanathan Muthukumarappan
Kurt A. Rosentrater
Much research regarding handling and storage characteristics of bulk solids has been conducted over the years. Physical properties of granular solids play a significant role in their resulting storage and flow behaviour, and are therefore essential to design appropriate, efficient, and economic bulk solids handling and storage equipment and structures. Distillers Dried Grains with Solubles (DDGS) is a bulk material that has been widely used as a protein source for ruminants and non-ruminants for more than two decades. Distillers grains are energy and nutrient dense, and are often used as a replacement for corn in animal diets. With the exponential …
Sourwood: An Apiforestation Story, Tammy Horn
Co-Encapsulation Of Gallium With Gentamicin In Liposomes Enhances Antimicrobial Activity Of Gentamicin Against Pseudomonas Aeruginosa, Majed Halwani, B. Yebio, Zacharias E. Suntres, M. Alipour, Ali Azghani, A. Omri
Co-Encapsulation Of Gallium With Gentamicin In Liposomes Enhances Antimicrobial Activity Of Gentamicin Against Pseudomonas Aeruginosa, Majed Halwani, B. Yebio, Zacharias E. Suntres, M. Alipour, Ali Azghani, A. Omri
Ali Azghani
Distribution Patterns Of Sciurus Niger (Eastern Fox Squirrel) Leaf Nests Within Woodlots Across A Suburban/Urban Landscape, Carmen M. Salsbury
Distribution Patterns Of Sciurus Niger (Eastern Fox Squirrel) Leaf Nests Within Woodlots Across A Suburban/Urban Landscape, Carmen M. Salsbury
Carmen M. Salsbury
To determine habitat characteristics that influence Sciurus niger (Eastern Fox Squirrel) abundance and distribution within a suburban/urban landscape in the midwestern United States, I documented the density and placement of fox squirrel leaf nests in 20 woodlots in the Indianapolis metropolitan area. Marion County, IN. The woodlots varied in size (0.94 to 19.5 ha), approximate age, shape, and degree of isolation from other woodlots and suitable squirrel habitat in the surrounding area. Only 8.0% of nests were located in a tree with another nest, and nests were randomly distributed in all but one woodlot, where they were uniformly dispersed. Nest …
Objectively Measured Physical Activity In Urban Alternative High School Students, John R. Sirard, Martha Y. Kubik, Jayne A. Fulkerson, Chrisa Arcan
Objectively Measured Physical Activity In Urban Alternative High School Students, John R. Sirard, Martha Y. Kubik, Jayne A. Fulkerson, Chrisa Arcan
John Sirard
Introduction—Alternative high school students are an underserved population of youth at greater risk for poor health behaviors and outcomes. Little is known about their physical activity patterns. Purpose—The purpose of this study was to describe 1) physical activity levels of students attending alternative high schools (AHS) in St. Paul/Minneapolis, MN and 2) compliance with wearing a physical activity accelerometer. Methods—Sixty-five students (59% male, 65% <18 years>old, 51% African-American, 17% Caucasian, 32% mixed and other) wore an accelerometer during all waking hours for seven days as part of the baseline assessment for a school-based physical activity and dietary behavior intervention. Accelerometer data …18>
In Vivo Lumbo-Sacral Forces And Moments During Constant Speed Running At Different Stride Lengths, Joseph Seay, W. Scott Selbie, Joseph Hamill
In Vivo Lumbo-Sacral Forces And Moments During Constant Speed Running At Different Stride Lengths, Joseph Seay, W. Scott Selbie, Joseph Hamill
Joseph Hamill
The aim of this study was to introduce a Newton–Euler inverse dynamics model that included reaction force and moment estimation at the lumbo-sacral (L5-S1) and thoraco-lumbar (T12-L1) joints. Data were collected while participants ran over ground at 3.8 m s71 at three different stride lengths: preferred stride length, 20% greater than preferred, and 20% less than preferred. Inputs to the model were ground reaction forces, bilateral lower extremity and pelvis kinematics and inertial parameters, kinematics of the lumbar spine and thorax and inertial parameters of the lumbar segment. Repeated measures ANOVA were performed on the lower extremity sagittal kinematics and …
Melamine Contamination Of Infant Formula In China: The Causes, Food Safety Issues And Public Health Implications, Emmanuel Ohene Afoakwa
Melamine Contamination Of Infant Formula In China: The Causes, Food Safety Issues And Public Health Implications, Emmanuel Ohene Afoakwa
Professor Emmanuel Ohene Afoakwa
No abstract provided.
Two Leucine-Rich Repeat Receptor Kinases Mediate Signaling, Linking Cell Wall Biosynthesis And Acc Synthase In Arabidopsis, Shou-Ling Xu, Abidur Rahman, Tobias Baskin, Joseph J. Kieber
Two Leucine-Rich Repeat Receptor Kinases Mediate Signaling, Linking Cell Wall Biosynthesis And Acc Synthase In Arabidopsis, Shou-Ling Xu, Abidur Rahman, Tobias Baskin, Joseph J. Kieber
Tobias Baskin
The plant cell wall is a dynamic structure that changes in response to developmental and environmental cues through poorly understood signaling pathways. We identified two Leu-rich repeat receptor-like kinases in Arabidopsis thaliana that play a role in regulating cell wall function. Mutations in these FEI1 and FEI2 genes (named for the Chinese word for fat) disrupt anisotropic expansion and the synthesis of cell wall polymers and act additively with inhibitors or mutations disrupting cellulose biosynthesis. While FEI1 is an active protein kinase, a kinase-inactive version of FEI1 was able to fully complement the fei1 fei2 mutant. The expansion defect in …
Efficacy Of Bacillus Sphaericus Against Larvae Of Malaria And Filarial Vectors: An Analysis Of Early Resistance Detection, Soam Prakash, Gavendra Singh
Efficacy Of Bacillus Sphaericus Against Larvae Of Malaria And Filarial Vectors: An Analysis Of Early Resistance Detection, Soam Prakash, Gavendra Singh
Soam Prakash
Effect Of Post Composting On Vermicompost Of Spent Mushroom Substrate, Adi Ainurzaman Jamaludin, Noor Zalina Mahmood
Effect Of Post Composting On Vermicompost Of Spent Mushroom Substrate, Adi Ainurzaman Jamaludin, Noor Zalina Mahmood
Adi Ainurzaman Jamaludin
By using Lumbricus rubellus, vermicomposting started after 3 weeks of pre composting. Five treatments in different ratio of cow dung : spent mushroom substrate were prepared as feed materials with four replicates for each treatment namely; 80:20 (T1), 60:40 (T2), 50:50 (T3), 40:60 (T4) and 20:80 (T5). After 7 weeks of vermicomposting, macronutrient elements of vermicompost produced were measured and the process continues with composting when all the earthworms were taken out from the treatments. Macronutrient elements of compost produced were also measured after 20 weeks of composting. The data reveals that 7 weeks for vermicomposting of cow dung and …
Impact Of An External Energy On Staphylococcus Epidermis [Atcc –13518] In Relation To Antibiotic Susceptibility And Biochemical Reactions – An Experimental Study, Mahendra Kumar Trivedi
Impact Of An External Energy On Staphylococcus Epidermis [Atcc –13518] In Relation To Antibiotic Susceptibility And Biochemical Reactions – An Experimental Study, Mahendra Kumar Trivedi
Mahendra Kumar Trivedi
Purpose:
While spiritual and mental energies are known to man, their impact has never been scientifically measurable in the material world and they remain outside the domain of science. The present experiment on Staphylococcus epidermis [ATCC –13518], validate the effects of such energy transmitted through a person, Mahendra Trivedi, which has produced an impact measurable in scientifically rigorous manner.
Methods:
Staphylococcus epidermis strains in revived and lyophilized state were subjected to spiritual energy transmitted through thought intervention and/or physical touch of Mahendra Trivedi to the sealed tubes containing strain, the process taking about 3 minutes and were analyzed within 10 …
Leading Firms As Knowledge Gatekeepers In A Networked Environment, Deogratias Harorimana Mr
Leading Firms As Knowledge Gatekeepers In A Networked Environment, Deogratias Harorimana Mr
Dr Deogratias Harorimana
This chapter introduces the role of the knowledge gatekeeper as a mechanism by which knowledge is created and transferred in a networked environment. Knowledge creation and transfer are essential for building a knowledge based economy. The chapter considers obstacles that inhibit this process and argues that leading firms create a shared socio-cultural context that enables the condivision of tacit meanings and codification of knowledge. Leading firms act as gatekeepers of knowledge through the creation of shared virtual platforms. There will be a leading firm that connects several networks of clients and suppliers may not interact directly with one another, but …
Understanding Consumer Preference For Functional Barley Tortillas Through Sensory, Demographic, And Behavioral Data, Ayako Toma, Maria Botero Omary, Kurt A. Rosentrater, Elizabeth A. Arndt, Naruemon Prasopsunwattana, Sutida Chongcham, Rolando A. Flores
Understanding Consumer Preference For Functional Barley Tortillas Through Sensory, Demographic, And Behavioral Data, Ayako Toma, Maria Botero Omary, Kurt A. Rosentrater, Elizabeth A. Arndt, Naruemon Prasopsunwattana, Sutida Chongcham, Rolando A. Flores
Kurt A. Rosentrater
Consumption of whole grains as part of a health-promoting diet is encouraged among Americans due to beneficial nutrients and phytochemicals. The main objectives of this study were to investigate the effect of whole barley flour particle size on consumer acceptance of whole grain and soluble fiber-enriched tortillas; to examine the effect of demographic and behavioral data on consumer acceptance; and to establish relationships between consumer acceptance and survey results to identify market opportunities among particular groups of consumers. Four experimental tortillas and two representative commercial brands were tested by 95 untrained panelists using a 9-point hedonic scale for appearance, color, …
No Evidence That Bacillus Thuringiensis Genes And Their Products Influence The Susceptibility Of Corn Residue To Decomposition, R. Michael Lehman, Shannon L. Osborne, Kurt A. Rosentrater
No Evidence That Bacillus Thuringiensis Genes And Their Products Influence The Susceptibility Of Corn Residue To Decomposition, R. Michael Lehman, Shannon L. Osborne, Kurt A. Rosentrater
Kurt A. Rosentrater
The possibility that Bacillus thuringiensis (Bt) corn (Zea mays L.) residues resist decomposition compared to non-Bt residues would present direct (soil carbon turnover times) and indirect (changes in tillage practices) effects on carbon budgets in agricultural systems. We evaluated the relative decomposition of residue from two pairs of Bt and non-Bt corn hybrids from different seed manufacturers buried in the root zone of adjacent Bt and non-Bt corn plots over a period of 384 d. We found no persistent differences in residue decomposition among the different hybrids regardless of the seed manufacturer or the presence of the Bt genes (both …
Determination Of Machining Parameters Of Corn Byproduct Filled Plastics, Kurt A. Rosentrater
Determination Of Machining Parameters Of Corn Byproduct Filled Plastics, Kurt A. Rosentrater
Kurt A. Rosentrater
In a collaborative project between the USDA and Northern Illinois University, the use of ethanol corn processing by-products as bio-filler materials in the compression molding of phenolic plastics has been studied. This paper reports on the results of a machinability study in the milling of various grades of this material. Three types of samples were studied: 100%, 75% and 50% phenolic samples. The milling operation was carried out with a fixed depth of cut of 2.0 mm using a 12.5 mm diameter two-fluted end-mill. The cutting speed was varied between 120 and 160 m/min at feeds between 200 and 300 …
The Effects Of Lactation And Negative Energy Balance On Kisspeptin-Stimulated Luteinizing Hormone And Growth Hormone In Dairy Cows, Brian K. Whitlock, Joseph A. Daniel, Robyn R. Wilborn, Herris S. Maxwell, Barbara P. Steele, James L. Sartin
The Effects Of Lactation And Negative Energy Balance On Kisspeptin-Stimulated Luteinizing Hormone And Growth Hormone In Dairy Cows, Brian K. Whitlock, Joseph A. Daniel, Robyn R. Wilborn, Herris S. Maxwell, Barbara P. Steele, James L. Sartin
Brian K Whitlock, PhD, DVM, DACT
Kisspeptin, a neuroendocrine regulator of gonadotropin releasing hormone, is hypothesized to integrate nutrition and hormones critical to metabolism and the regulation of reproduction. Since the negative energy balance of early lactation is associated with reduced fertility via suppression of gonadotropin secretion and enhanced growth hormone (GH) responsiveness, this experiment was designed to determine the effects of stage of lactation and negative energy balance on kisspeptin-10 (Kp-10) stimulated luteinizing hormone (LH) and GH concentrations. Five nonlactating [5.1 ± 0.8 (SEM) years; 577 ± 19 kg body weight (BW)] and five lactating [4.1 ± 0.6 years; 608 ± 11 kg BW] multiparous …
Local Chef Inspires Healthy And Economical Cooking -- In A Flash, Madeleine K. Charney
Local Chef Inspires Healthy And Economical Cooking -- In A Flash, Madeleine K. Charney
Madeleine K. Charney
Local chef, Leslie Cerier, offers thought-provoking workshops about eating whole foods.
The Internet Archive: How You Can Look Into The Web’S Past And Plan Your Future, Joe Zumalt
The Internet Archive: How You Can Look Into The Web’S Past And Plan Your Future, Joe Zumalt
Joseph R. Zumalt
How to find historical pages on the World Wide Web with the Internet Archive.