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Articles 631 - 660 of 756
Full-Text Articles in Other Life Sciences
Using Media Messaging To Promote Healthful Eating And Physical Activity Among Urban Youth, B.J Carter, Amanda Birnbaum, Lisa Hark, Brian Vickery, Charles Potter, Michael P. Osborne
Using Media Messaging To Promote Healthful Eating And Physical Activity Among Urban Youth, B.J Carter, Amanda Birnbaum, Lisa Hark, Brian Vickery, Charles Potter, Michael P. Osborne
Department of Public Health Scholarship and Creative Works
National trends show consistent increases, as well as racial and ethnic dis- parities, in the prevalence of overweight children and adolescents. Such disparity is evident regarding behaviors such as a poor diet and a lack of physical activity and in the prevalence and outcomes of associated health problems. It has been suggested that grounding interventions in cultural traditions and norms are critical for preventing obesity among ethnic and racial minority youth; however, with some notable exceptions, few community interventions have used this approach. Moreover, urban minority youth may face additional barriers to healthful eating and physical activity behaviors, such as …
An Anti-Locust Campaign In Nabokov (And Pushkin), Victor Fet
An Anti-Locust Campaign In Nabokov (And Pushkin), Victor Fet
Biological Sciences Faculty Research
Pushkin’s non-apocryphal anti-locust campaign is reflected in Nabokov’s unpublished sequel to The Gift.
Role Of Mitochondrial Uncoupling Protein 2 (Ucp2) In Modulation Of Adiposity, Xiaocun Sun
Role Of Mitochondrial Uncoupling Protein 2 (Ucp2) In Modulation Of Adiposity, Xiaocun Sun
Doctoral Dissertations
Obesity is a disorder of energy balance in which energy intake exceeds energy expenditure. Methods to control obesity through limiting energy intake have had limited success, and it is widely recognized that energy expenditure must also be increased if long-term weight loss is to be achieved. Uncoupling proteins (UCPs) are a family of integral membrane proteins of mitochondrial inner membrane, where they uncouple the process of mitochondrial respiration from oxidative phosphorylation, diminishing the resulting production of ATP and decreasing the metabolic efficiency of the organism. Thus, UCPs provide new molecular targets for increasing energy expenditure. Unlike the other UCP family …
The Movements And Reproductive Success Of Re-Introduced Darters In The Pigeon River, Tn, Virginia Anne Harrison
The Movements And Reproductive Success Of Re-Introduced Darters In The Pigeon River, Tn, Virginia Anne Harrison
Masters Theses
The Pigeon River has a history of degraded water quality that lasted nearly seven decades, from 1908 until the 1970s, thereby resulting in the loss of many native species. In recent years, recovery efforts have been initiated by numerous agencies to re-introduce selected fish and other aquatic species. Three species of darters (gilt darter Percina evides, bluebreast darter Etheostoma camurum, and blueside darter E. jessiae) were re-introduced into the river in 2001-03; re-introduction of a fourth species, the stripetail darter (E. kennicotti) began in 2003. Since 2002, these species have been monitored by snorkel surveys …
Influence Of Fall Grazing By Sheep On Plant Productivity, Shrub Age Class Structure And Herbaceous Species Diversity In Sagebrush Steppe, Ryan Duncan Woodland
Influence Of Fall Grazing By Sheep On Plant Productivity, Shrub Age Class Structure And Herbaceous Species Diversity In Sagebrush Steppe, Ryan Duncan Woodland
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
Traditional chemical and mechanical treatments of Wyoming Big Sagebrush (Artemisia tridentata ssp. wyomingensis) are costly and have typically focused solely on increasing forage for livestock production. Managing these systems biologically with grazing can potentially reduce costs and increase both biodiversity and understory production as well as rejuvenate Wyoming Big Sagebrush (ARTRWY). This experiment was conducted on Deseret Land and Livestock Ranch in northern Utah in October 2003. One hundred and twenty sheep (dry ewes) grazed 3, 60m x 40m plots (40 sheep plot-1). Sheep were provided a protein-energy supplement to facilitate use of the secondary metabolites …
High Phosphate (Up To 600 Mm) Induces Pseudohyphal Development In Five Wild Type Candida Albicans, Jacob M. Hornby, Raluca Dumitru, Kenneth Nickerson
High Phosphate (Up To 600 Mm) Induces Pseudohyphal Development In Five Wild Type Candida Albicans, Jacob M. Hornby, Raluca Dumitru, Kenneth Nickerson
Kenneth Nickerson Papers
A method is described for the formation of nearly 100% pseudohyphae populations of wild-type Candida albicans A72. The method employs fungal growth at 37 °C (ca. 5×106 cells/ml) in a glucose–proline–N-acetyl-glucosamine medium supplemented with up to 600 mM phosphate (KH2PO4/K2HPO4 1:1) at pH 6.5. Four other strains of C. albicans (MEN, 10261, SG5314 and CAI-4) also formed pseudohyphae under these conditions, although the phosphate response profiles differed in the concentration required for each strain to form pseudohyphae.
Zoological Nomenclature And Kinbote’S Name Of God, Victor Fet
Zoological Nomenclature And Kinbote’S Name Of God, Victor Fet
Biological Sciences Faculty Research
In Nabokov’s Pale Fire, Kinbote explains that the Name of God holds priority over Nature, etc. I show that the ‘priority principle’ here can be interpreted in the strict terms of zoological nomenclature.
A Management Plan For The Imported Fire Ant (Ifa) Migration Into Gateway Communities In East Tennessee, Elizabeth Ann Long
A Management Plan For The Imported Fire Ant (Ifa) Migration Into Gateway Communities In East Tennessee, Elizabeth Ann Long
Masters Theses
This thesis outlines a management plan for Gateway communities to use as a preparedness guide dealing with the establishment of the hybrid species of the Imported Fire Ant (IFA). The red species of IFA, Solenopsis invicta Buren, and the black species of IFA, Solenopsis richteri Forel, are located in southern Tennessee, but it appears that it is the hybrid species of their crossbreeding that is migrating into east Tennessee. The two species of IFA and their hybrid are moving north, both by natural migration and by being brought into the east Tennessee area on landscape plant materials and by the …
Quorum Sensing In Candida Albicans: Probing Farnesol’S Mode Of Action With 40 Natural And Synthetic Farnesol Analogs, Roman Shchepin, Jacob M. Hornby, Erin Burger, Timothy Niessen, Patrick H. Dussault, Kenneth Nickerson
Quorum Sensing In Candida Albicans: Probing Farnesol’S Mode Of Action With 40 Natural And Synthetic Farnesol Analogs, Roman Shchepin, Jacob M. Hornby, Erin Burger, Timothy Niessen, Patrick H. Dussault, Kenneth Nickerson
Kenneth Nickerson Papers
The dimorphic fungus Candida albicans produces extracellular farnesol (3,7, 11-trimethyl-2,6,10-dodecatriene- 1-ol) which acts as a quorum-sensing molecule (QSM) to suppress filamentation. Of four possible geometric isomers of farnesol, only the E,E isomer possesses QSM activity. We tested 40 natural and synthetic analogs of farnesol for their activity in an N-acetylglucosamine-induced differentiation assay for germ tube formation (GTF). Modified structural features include the head group, chain length, presence or absence of the three double bonds, substitution of a backbone carbon by S, O, N, and Se heteroatoms, presence or absence of a 3-methyl branch, and the bulkiness of the hydrophobic …
Sp290-D-Two-Spotted Spider Mites, The University Of Tennessee Agricultural Extension Service
Sp290-D-Two-Spotted Spider Mites, The University Of Tennessee Agricultural Extension Service
Insects, Pests, Plant Diseases and Weeds
Twospotted spider mites occur as injurious pests on more than 180 host plants, including more than 100 cultivated species. Violet, chickweed, pokeweed, wild mustard and blackberry are common foci from which infestations develop on nearby ornamental plants.
Trends. Security, Stigma, And Biological Weapons, Ibpp Editor
Trends. Security, Stigma, And Biological Weapons, Ibpp Editor
International Bulletin of Political Psychology
This Trends article discusses the political psychology of security concerns pertaining to unclassified information relating to biological weapons and/or biosecurity and how it might be used to harm US security.
Eight Gram-Negative Bacteria Are 10,000 Times More Sensitive To Cationic Detergents Than To Anionic Detergents, Soumitra Rajagopal, Nicole Eis, Kenneth Nickerson
Eight Gram-Negative Bacteria Are 10,000 Times More Sensitive To Cationic Detergents Than To Anionic Detergents, Soumitra Rajagopal, Nicole Eis, Kenneth Nickerson
Kenneth Nickerson Papers
In liquid culture, eight typical Gram-negative bacteria were ca. 10,000-fold more sensitive to cationic detergents than to the anionic detergent sodium dodecyl sulfate. Cetyltrimethylammonium bromide (CTAB) was inhibitory at concentrations ranging from 0.0006% to 0.01%. Four pseudomonads able to form biofilms were ca. 1000-fold more resistant to CTAB on Luria–Bertani agar plates than they were in liquid culture. A lasI mutant of Pseudomonas aeruginosa was only able to tolerate 0.1% CTAB on Luria–Bertani agar plates but could tolerate 5% CTAB when supplemented with homoserine lactone containing culture supernatants.
En culture liquide, huit bactéries Gram négatif typiques étaient ca. 10,000 fois …
An Ecological Study Of The Spotted Salamander, Ambystoma Maculatum, And Jefferson Salamander, A. Jeffersonianum, In West Virginia, Seth J. Myers
An Ecological Study Of The Spotted Salamander, Ambystoma Maculatum, And Jefferson Salamander, A. Jeffersonianum, In West Virginia, Seth J. Myers
Theses, Dissertations and Capstones
The movements of Spotted Salamanders, Ambystoma maculatum, and Jefferson Salamanders, A. jeffersonianum, in and out of an ephemeral wetland in West Virginia were monitored for one breeding season using a drift fence lined with funnel traps. Significant movements of A. jeffersonianum coincided with rainfall and maximum daily air temperatures reaching a minimum of 5° C. Significant movements of A. maculatum coincided with rainfall and maximum daily air temperatures of at least 10° C. A. jeffersonianum preceded A. maculatum to the breeding site. Males of both species preceded females. The mark-recapture estimate of A. maculatum is 67 males and 25 females. …
Phosphoproteomic Studies Of Smooth Muscle Contraction: Investigation Of Differential Phosphorylation In Relaxed/Contracted Rat Aortic Smooth Muscle Tissue Using Maldi-Tof Ms, Tonya M. Pekar
Theses, Dissertations and Capstones
Many human disorders are associated with the malfunction of smooth muscle tissue, or are related to the capabilities of its proper function—asthma, glaucoma, renal inefficiency, hypertension, and cardiovascular disease. Dysfunctional proteins are frequently implicated as the source of such disorders. As the second highest cause of death in the United States, the epidemic of cardiovascular disease makes the study of smooth muscle of utmost concern.
The capabilities of proteomics and mass spectrometry allow the entire proteome complement of a cell or tissue type to be analyzed at once. This investigation employs such techniques in an effort to better understand the …
Notes On Eryx, Omega, And Ata, Victor Fet
Notes On Eryx, Omega, And Ata, Victor Fet
Biological Sciences Faculty Research
Observations on several Nabokov’s works (Pale Fire, Lolita) where geographic or zoological names provide sources for puns and hidden parallels.
What Makes An Animal Choose A Forage, Elizabeth A. Burritt, Frederick D. Provenza
What Makes An Animal Choose A Forage, Elizabeth A. Burritt, Frederick D. Provenza
Wildland Resources Faculty Publications
Consider the following scenarios: To cut the costs of ranching a researcher explores feeding cattle ammoniated straw in winter. Some of the cows maintain themselves on the diet while others lose weight, produce less milk and fail to conceive. A producer in Missouri plants a pasture rich in legumes and high in crude protein, yet his cattle prefer moldy hay and endophyte infected tall fescue to the legumes. Why do animals behave this way? Animals are thought to prefer foods that are palatable but what is palatability? We define palatability as the interrelationship between a food's flavor and postingestive feedback …
How Mothers Make Decisions For Feeding Young Children: A Grounded Theory Approach, Dana Rae Cox
How Mothers Make Decisions For Feeding Young Children: A Grounded Theory Approach, Dana Rae Cox
Doctoral Dissertations
In this study a theory of how mothers make decisions about feeding their young children aged 3 to 5 years was developed using the grounded theory technique. In-depth interviews were conducted with 50 married mothers of children aged 3 to 5 to determine their mealtime practices and feelings about mealtimes. Interviews were audio taped and transcribed verbatim. Transcribed interviews were analyzed using the grounded theory technique to build a theory from the data (interviews).
Analyses of mothers’ interviews indicated that mothers in this study formed expectations for 5 distinct stages of feeding decisions based on their experiences. The five stages …
Ultrasound And Microwave Assisted Extraction Of Soybean Oil, Haizhou Li
Ultrasound And Microwave Assisted Extraction Of Soybean Oil, Haizhou Li
Masters Theses
Soybeans, one of the world’s leading cash crops, contain appropriately 20% lipid. Currently, soybean oil is the principal vegetable oil used in the U.S. and the world market, totaling 29% of the world vegetable oil production in 2001. Development of extraction technology that could increase oil yield would thus significantly enhance the profitability of the soybean industry and reduce processing costs significantly. It has been shown that both ultrasound-assisted and microwave-assisted extraction methods can enhance extraction of phytochemicals from plant sources while reducing processing time and solvent consumption. However, little is known about how ultrasound and microwave can affect the …
Molecular, Genetic, And Functional Analysis Of Ptr3p, A Novel Protein Involved In Amino Acid And Dipeptide Regulation Of Di/Tri-Peptide Transport System In Saccharomyces Cerevisiae, Vanny Narita
Doctoral Dissertations
The yeast Saccharomyces cerevisiae utilizes nutrient sensor activity at the plasma membrane to regulate growth. Amino acids are sensed by the membrane protein Ssy1p, and a signal is transduced to the novel intracellular regulatory protein Ptr3p. This leads to an upregulation of the expression of amino acid permease genes and PTR2, the gene encoding the di/tri-peptide transporter Ptr2p. Using a reporter gene assay, this study found that various amino acids induced PTR2 expression to different levels. Peptide and amino acid induction required Ptr3p, while Ssy1p was required for amino acid induction, but not peptide induction. Ptr3p-mediated, amino acid/dipeptide-induced expression …
Development And Impact Of Geocoris Punctipes (Say) (Hemiptera: Lygaeidae) On Selected Pests Of Greenhouse Ornamentals, Nicole D. Pendleton
Development And Impact Of Geocoris Punctipes (Say) (Hemiptera: Lygaeidae) On Selected Pests Of Greenhouse Ornamentals, Nicole D. Pendleton
Masters Theses
The big-eyed bug, Geocoris punctipes (Say) (Hemiptera: Lygaeidae), a generalist insect predator common in several agricultural systems, is explored as a biological control agent against pests of ornamentals in greenhouses. This research consists of three components: 1) Evaluation of development and survival of the predator (egg through adulthood) when reared on six diets, including greenhouse pests, a combination of greenhouse pests and plant material, and a meat-based artificial diet that has been developed for G.punctipes, 2) Assessment of predation rates of mass-reared big-eyed bugs by investigating the number of prey (three prey species common to greenhouse and ornamental crops) …
Pb1191-The Brown Recluse Spider, The University Of Tennessee Agricultural Extension Service
Pb1191-The Brown Recluse Spider, The University Of Tennessee Agricultural Extension Service
Insects, Pests, Plant Diseases and Weeds
Few things cause as much fear and anxiety in people as the thought of poisonous spiders. Araneophobia, irrational fear of spiders, is widespread in the United States. The brown recluse spider is one of the feared poisonous spiders occurring in Tennessee. This spider is often visualized as an aggressive, bad-tempered monster, just waiting for an opportunity to ambush people. In reality, the brown recluse spider is a shy, retiring spider that does not attack people and usually only bites in response to being injured. Most reported bites occur when putting on old clothing in which the spider is hiding or …
Pb1193-The Black Widow Spider, The University Of Tennessee Agricultural Extension Service
Pb1193-The Black Widow Spider, The University Of Tennessee Agricultural Extension Service
Insects, Pests, Plant Diseases and Weeds
Araneophobia, or an irrational fear of spiders, is common among people in the United States. Few other spiders are as apt to make people uncomfortable as is the black widow. Black widow spiders are very numerous in nearly all parts of the U.S., but cases of reported bites are rare. For the most part, black widows live peacefully in close proximity to humans with little contact. Although both male and female black widow spiders are highly venomous, according to our knowledge, no reports of bites from the males have been recorded.
Pb1303-Managing Pests Around The Home, The University Of Tennessee Agricultural Extension Service
Pb1303-Managing Pests Around The Home, The University Of Tennessee Agricultural Extension Service
Insects, Pests, Plant Diseases and Weeds
Most household pests are insects and are commonly called “bugs.” Other organisms such as spiders, scorpions, centipedes, millipedes, ticks, sowbugs, pillbugs, mites, rats, mice, snakes, bats, squirrels, birds, molds and fungi may enter homes. In Tennessee, one or more of about 40 common pests are found in every home at one time or another. Even the most conscientious person cannot always avoid an occasional pest infestation.
Determination Of 17Β-Estradiol And Estrone Concentrations In Runoff And Topsoil From Plots Receiving Dairy Manure, Angel Renea Peters Dyer
Determination Of 17Β-Estradiol And Estrone Concentrations In Runoff And Topsoil From Plots Receiving Dairy Manure, Angel Renea Peters Dyer
Masters Theses
Because of increasing concern about estrogenic compounds in animal wastes, the objective of this research was to measure 17β-estradiol and estrone concentrations in runoff and soil from plots fertilized with liquid dairy waste. Nine plots were established at The University of Tennessee Dairy Experiment Station located at Lewisburg, Tennessee, and dairy manure was applied to six of the nine plots in November, 2000. Three of the plots received manure at a rate sufficient to meet the nitrogen (N) requirement for winter wheat; three received manure at a rate sufficient to meet the phosphorus (P) requirement for winter wheat, and three …
Development Of Microbial Inocula For Silage Fermentations, Plunkett Clarke
Development Of Microbial Inocula For Silage Fermentations, Plunkett Clarke
Masters
Silage is the product formed by the fermentation process that occurs when grass is stored anaerobically. Microbial silage inoculants are often added to grass at ensiling in order to improve the silage fermentation. Inoculants normally contain strains of homofermentative lactic acid bacteria. In order to be effective 10 6 viable microorganisms must be added per gram grass ensiled. Literature reports have shown that there are a number of shortcomings associated with inoculants most notably a lack of viability and long lag phases. Therefore, the objective of the research was to improve the quality of silage inoculants. It was hoped to …
Manure Utilization Guidelines, Maine Department Of Agriculture
Manure Utilization Guidelines, Maine Department Of Agriculture
Maine Collection
Manure Utilization Guidelines
Maine Department of Agriculture, Food and Rural Resources, State House Station No.28, Augusta, Maine 04333 (November 1, 2001).
Contents: Table of Content / Nutrient Management Plan / Standards / Attachments 1-7
Functional Analysis Of Drosophila Rad51 Protein In Dna Repair, Recombination, And Apoptosis, Siuk Yoo
Functional Analysis Of Drosophila Rad51 Protein In Dna Repair, Recombination, And Apoptosis, Siuk Yoo
Doctoral Dissertations
Among proteins involved in homologous recombination, Rad51 is an essential enzyme possessing DNA binding, ATPase, and strand transfer activities. The fu nctions of Rad51 in repair of double-strand breaks (DSB) and meiotic recombination have been extensively studied in yeast and mammals, but little is known about its roles in cell cycle regulation and apoptosis. In this study, we examine the roles of Rad51dm protein in Drosophila melanogaster.
Like other Rad51 proteins, Rad51dm is involved in DNA repair and recombination. The function of Rad51dm in DNA repair was demonstrated by examining the sensitivity of transgenic animals to methyl methanesulfonate (MMS) …
Recreation, Livestock Grazing, And Protected Resource Values In The Grand Staircase-Escalante National Monument, Lael Palmer
Recreation, Livestock Grazing, And Protected Resource Values In The Grand Staircase-Escalante National Monument, Lael Palmer
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
This thesis reports the results of a project which identified differences in characteristics of Grand Staircase-Escalante National Monument user groups as they related to their perceptions of how they experience the Monument as recreationists. It explored opinions of four groups: hikers vs. hunters and pre-designation users vs. post-designation users. Responses of these groups were compared for attribution of perceived resource damage, feelings of crowding, acceptability of management action, and importance of identified monument values to their visit. In addition, characteristics of the users were examined to determine if demographic characteristics accounted for differences in perception toward the resources. Finally, how …
Origin And Conservation Genetics Of Threatened Ute Ladies’-Tresses, Spiranthes Diluvialis (Orchidaceae), Allen L. Szalanski, Gerry Steinauer, Richard Bischof, Jessica Lynn Petersen
Origin And Conservation Genetics Of Threatened Ute Ladies’-Tresses, Spiranthes Diluvialis (Orchidaceae), Allen L. Szalanski, Gerry Steinauer, Richard Bischof, Jessica Lynn Petersen
Department of Animal Science: Faculty Publications
The Ute ladies’-tresses, Spiranthes diluvialis, is listed as a threatened orchid in west-central United States by the Federal government. Information on its origin and patterns of genetic variation is needed to develop effective conservation strategies for this species. DNA sequencing and polymerase chain reaction–restriction fragment length polymorphism (PCR-RFLP) was used to evaluate genetic variation and structure of 23 populations of S. diluvialis. In addition, four congeneric species were analyzed to determine possible origins of the putative allotetraploid S. diluvialis. DNA sequencing and PCR-RFLP analysis of the nuclear ribosomal internal transcribed spacer (ITS) and mitochondrial and chloroplast DNA …
"Vertebrate Pests Of Agriculture, Forestry And Public Lands" 2001 Annual Meeting
"Vertebrate Pests Of Agriculture, Forestry And Public Lands" 2001 Annual Meeting
Western Region Coordinating Committee for Vertebrate Pests of Agriculture, Forestry, and Public Lands (WCC-95)
Table of Contents
2001 Officers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Minutes ................................................................ 2
Number and Title of the Regional Project ................................ 2
Location and Dates of the Meeting ................................... 2
Participants ................ , . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . …