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2007

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The Arctic Sea Routes : Marine Environmental Impacts On Effect Of The Climate Change And Opening Of The Passages For International Shipping Traffic, Mohamed A. Essallamy Dec 2007

The Arctic Sea Routes : Marine Environmental Impacts On Effect Of The Climate Change And Opening Of The Passages For International Shipping Traffic, Mohamed A. Essallamy

World Maritime University Dissertations

No abstract provided.

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Evolutionary Medicine Of Kani Tribal’S Botanical Knowledge In Agasthiayamalai Biosphere Reserve, South India, John De Britto, R. Mahesh Dec 2007

Evolutionary Medicine Of Kani Tribal’S Botanical Knowledge In Agasthiayamalai Biosphere Reserve, South India, John De Britto, R. Mahesh

Ethnobotanical Leaflets

Agasthiayamalai Biosphere Reserve in Tirunelveli zones have had five Kani tribal settlement surveys of ethnomedicinal utilization with more than 480 species of which only 70 species are been reported during the field study 2006-2007. Collected ancestral knowledge was documented in database format by the software Visual Basic 6.0 and M.S Access. Kani tribes reveal that they are capable of treating various diseases. Exploitation and documentation of traditional medicine is essential for the future. Such study will be useful to understand the role and importance of the tribal botanical knowledge in the conservation of medicinal plants of this area.

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Growth And Demography Of One Population Of The Lizard Sceloporus Mucronatus Mucronatus, Angela M. Ortega-León, Emily R. Smith, J. Jaime Zúñiga-Vega, Fausto R. Méndez–De La Cruz Dec 2007

Growth And Demography Of One Population Of The Lizard Sceloporus Mucronatus Mucronatus, Angela M. Ortega-León, Emily R. Smith, J. Jaime Zúñiga-Vega, Fausto R. Méndez–De La Cruz

Western North American Naturalist

We report on growth and demography of Sceloporus mucronatus mucronatus, a lizard subspecies endemic to central Mexico. We characterize the life history of this subspecies, provide quantitative information relevant to conservation, and add to the growing literature on the diversity of life histories in the genus Sceloporus. We calculated body growth rates and fitted them to the Von Bertalanffy, the logistic-by-length, and the logistic-by-weight growth models. The Von Bertalanffy model provided the best fit, and we used it to analyze the growth pattern. Growth rates were similar during the 1st year of life in both sexes, but after …

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Large Mixed-Species Dispersal Flights For Predatory And Scavenging Aquatic Heteroptera And Coleoptera, Northern Arizona, Usa, Lawrence E. Stevens, John T. Polhemus, Richard S. Durfee, Carl A. Olson Dec 2007

Large Mixed-Species Dispersal Flights For Predatory And Scavenging Aquatic Heteroptera And Coleoptera, Northern Arizona, Usa, Lawrence E. Stevens, John T. Polhemus, Richard S. Durfee, Carl A. Olson

Western North American Naturalist

We report 4 incidents of large (hundreds to hundreds of thousands of individuals) mixed-species flights of predatory and scavenging aquatic Heteroptera and Coleoptera. The events occurred on normal (mostly clear, calm) autumn 2005 and spring 2006 late afternoons near Flagstaff, Arizona. Flight days were either near the full moon or in advanced waning lunar periods. At least 18 species were involved in the flights, with as many as 16 species (7 species of Heteroptera in 3 families, 9 species of Coleoptera in 2 families) in a single flight. Heteroptera (especially from the family Corixidae) were 2–4 orders of magnitude more …

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Home Range Size Of Black-Backed Woodpeckers In Burned Forests Of Southwestern Idaho, Jonathan G. Dudley, Victoria A. Saab Dec 2007

Home Range Size Of Black-Backed Woodpeckers In Burned Forests Of Southwestern Idaho, Jonathan G. Dudley, Victoria A. Saab

Western North American Naturalist

We examined home range size of Black-backed Woodpeckers (Picoides arcticus) in burned ponderosa pine (Pinus ponderosa) / Douglas-fir (Pseudotsuga menziesii) forests of southwestern Idaho during 2000 and 2002 (6 and 8 years following fire). Home range size for 4 adult males during the post-fledging period was 115.6–420.9 ha using the 95% fixed-kernel method, and 150.4–766.1 ha using the 100% minimum convex polygon method. Smoothed bootstrap estimates (95%) were 130.0–521.9 ha. Home range sizes were significantly smaller 6 years after fire than 8 years after fire. Each male had from 2 to 8 areas of …

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Increased Willow Heights Along Northern Yellowstone's Blacktail Deer Creek Following Wolf Reintroduction, Robert L. Beschta, William J. Ripple Dec 2007

Increased Willow Heights Along Northern Yellowstone's Blacktail Deer Creek Following Wolf Reintroduction, Robert L. Beschta, William J. Ripple

Western North American Naturalist

Gray wolves (Canis lupus) were reintroduced into Yellowstone National Park in 1995–1996. In August 2004 we measured plant architecture of Geyer willow (Salix geyeriana) stems along three 100-m reaches of Blacktail Deer Creek in Yellowstone's northern elk (Cervus elaphus) winter range to evaluate changes in patterns of browsing and height growth following wolf reintroduction. Average browsing intensities (n = 3 stream reaches) of 100% in 1997 decreased to 0%–55% by 2003, whereas average stem heights of 25–74 cm in 1997 increased to 149–268 cm by 2003, indicating that willow height growth was inversely …

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Observations On An Association Between The Weevil Scaphomorphus Trivittatus (Say) And Two Astragalus Species On Selenium-Rich Soils In Carbon County, Utah, Gary R. Hooper, Boyd F. Holdaway Dec 2007

Observations On An Association Between The Weevil Scaphomorphus Trivittatus (Say) And Two Astragalus Species On Selenium-Rich Soils In Carbon County, Utah, Gary R. Hooper, Boyd F. Holdaway

Western North American Naturalist

The weevil Scaphomorphus trivittatus (Say) was found in close association with Astragalus praelongus var. elliseae (Rydb.) and Astragalus asclepiadoides (Jones) in selenium-containing soils in Carbon County, Utah. The weevils fed on roots of the Astragalus species and formed soil cocoons, which were attached to the tap roots. The weevils pupated and developed into adults in these cocoons over the fall and winter and then emerged in the spring. The plants and soil cocoons contained highly elevated levels of selenium compared to the soils. The weevils, in contrast, differed little from the soils in selenium content.

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Moistened Seeds Increase Rodent Trap Success, John C. Tull, Michael W. Sears Dec 2007

Moistened Seeds Increase Rodent Trap Success, John C. Tull, Michael W. Sears

Western North American Naturalist

Seed moisture has been shown to influence the rates of seed cache removal by rodents. Although the precise mechanism is not known, this knowledge might prove useful in field applications. We examined whether moistened bait would increase trap success in desert rodent populations. We placed traps 15 m apart in grids within a 500-ha study area and randomly baited traps with either dry or moistened seeds. We found that traps baited with moistened seeds had 34.9% higher success than traps baited with dry seeds (n = 190, χ2 = 5.389, df = 1, P = 0.020). Our results …

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New Distribution Records For The Querétero Dusky Rattlesnake Crotalus Aquilus (Viperidae), With Comments On Morphology And Habitat Use, Jesse M. Meik, Estrella Mociño Deloya, Kirk Setser Dec 2007

New Distribution Records For The Querétero Dusky Rattlesnake Crotalus Aquilus (Viperidae), With Comments On Morphology And Habitat Use, Jesse M. Meik, Estrella Mociño Deloya, Kirk Setser

Western North American Naturalist

We provide the 1st documented accounts of the Mexican endemic rattlesnake Crotalus aquilus from the state of México. The new records extend the known distribution of the species into a region where it may be sympatric with the superficially similar C. triseriatus. Because these taxa have previously been subject to some taxonomic confusion, we performed a preliminary morphological comparison using individuals of both species obtained from proximal localities. Our analyses support the supposition that these taxa are morphologically distinct. The new localities for C. aquilus are situated in high valleys that have been extensively modified by human settlement and …

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Censusing Bobcats Using Remote Cameras, Eveline S. Larrucea, Gianluca Serra, Michael M. Jaeger, Reginald H. Barrett Dec 2007

Censusing Bobcats Using Remote Cameras, Eveline S. Larrucea, Gianluca Serra, Michael M. Jaeger, Reginald H. Barrett

Western North American Naturalist

We estimated bobcat (Lynx rufus) density for 3 different locations in northern California using active infrared-triggered cameras. Using differences in pelage pattern as well as other physical characteristics, we identified individual bobcats from photographs, and used mark-recapture techniques to estimate population density. Camera density affected the precision of population estimates. The same population was estimated using camera densities of 0.5, 1, 2, 4, 6, and 8 cameras · km−2. Higher camera densities resulted in more captures and recaptures of bobcats and, consequently, in more precise density estimates. Similarly, the number of photo-captures and recaptures increased with …

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Variation In Ant Populations With Elevation, Tree Cover, And Fire In A Pinyon-Juniper–Dominated Watershed, Eugénie M. Montblanc, Jeanne C. Chambers, Peter F. Brussard Dec 2007

Variation In Ant Populations With Elevation, Tree Cover, And Fire In A Pinyon-Juniper–Dominated Watershed, Eugénie M. Montblanc, Jeanne C. Chambers, Peter F. Brussard

Western North American Naturalist

Climate change and fire suppression have facilitated expansion of pinyon-juniper woodlands into sagebrush-steppe ecosystems of the Great Basin, USA, resulting in a loss of biological diversity. To assess the effects of using prescribed fire in restoration efforts, ant abundance, species richness, and composition were examined pre- and post-burn along the elevation and tree cover gradients encompassed by a pinyon-juniper woodland in a central Nevada watershed. Ants were sampled using pitfall traps in 6 sites for the elevation study and in 2 sites for the tree cover study, representing paired burn and control sites in a randomized block design. Vegetation and …

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The Scotopic Visual Sensitivity Of Four Species Of Trout: A Comparative Study, Russell B. Rader, Timberley Belish, Michael K. Young, John Rothlisberger Dec 2007

The Scotopic Visual Sensitivity Of Four Species Of Trout: A Comparative Study, Russell B. Rader, Timberley Belish, Michael K. Young, John Rothlisberger

Western North American Naturalist

We compared the maximum scotopic visual sensitivity of 4 species of trout from twilight (mesotopic) to fully dark-adapted vision. Scotopic vision is the minimum number of photons to which a fully dark-adapted animal will show a behavioral response. A comparison of visual sensitivity under controlled laboratory conditions showed that brown trout (Salmo trutta) and brook trout (Salvelinus fontinalis) had maximum scotopic thresholds (1.1 × 10−4 µmol · m−2s−1, ~0.005 lux) 2 times lower than rainbow trout (Oncorhyncus mykiss) and Snake River cutthroat trout (Oncorhynchus clarki bouvieri), which …

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Population Density, Biomass, And Age-Class Structure Of An Invasive Clam Corbicula Fluminea In Rivers Of The Lower San Joaquin River Watershed, California, Larry R. Brown, Janet K. Thompson, Karen Higgins, Lisa V. Lucas Dec 2007

Population Density, Biomass, And Age-Class Structure Of An Invasive Clam Corbicula Fluminea In Rivers Of The Lower San Joaquin River Watershed, California, Larry R. Brown, Janet K. Thompson, Karen Higgins, Lisa V. Lucas

Western North American Naturalist

Corbicula fluminea is well known as an invasive filter-feeding freshwater bivalve with a variety of effects on ecosystem processes. However, C. fluminea has been relatively unstudied in the rivers of the western United States. In June 2003, we sampled C. fluminea at 16 sites in the San Joaquin River watershed of California, which was invaded by C. fluminea in the 1940s. Corbicula fluminea was common in 2 tributaries to the San Joaquin River, reaching densities of 200 clams · m−2, but was rare in the San Joaquin River. Biomass followed a similar pattern. Clams of the same age …

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Hay Piles Of The Mountain Beaver (Aplodontia Rufa) Delay Plant Decomposition, Richard Karban, Claire Karban, Jesse Karban Dec 2007

Hay Piles Of The Mountain Beaver (Aplodontia Rufa) Delay Plant Decomposition, Richard Karban, Claire Karban, Jesse Karban

Western North American Naturalist

Mountain beavers cache plants in neat piles above the ground near the entrances to their underground burrows, although the purpose of these hay piles remains controversial. We tested the hypothesis that drying plants in piles above ground may slow decay when the plants are stored underground. Predried plants and undried controls were placed in abandoned burrows. Plants that had been predried retained more green and decayed more slowly than undried controls. This experimental test supports the hypothesis that haying may extend the time during which plants are useful to mountain beavers.

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Transfer And The Fuzzy-Trace Theory, Michael Ryan Massey Dec 2007

Transfer And The Fuzzy-Trace Theory, Michael Ryan Massey

Theses

Transfer occurs when something is learned under particular circumstances and is applied in a new, somehow different, situation. This paper will argue that fuzzy-trace theory can be used to explain the process of transfer. The advantage of fuzzy-trace theory is found in a dual-process theory of memory. Fuzzy-trace theory explains a broad range of phenomena and has the strength to conquer the elusive problem of transfer. Trace-cue compatibility theory is a theory of memory retrieval. By combining the trace-cue compatibility theory with fuzzy-trace theory, we get a method for treating both memory storage and memory retrieval. This combination provides a …

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The Murray Ledger And Times, December 28, 2007, The Murray Ledger And Times Dec 2007

The Murray Ledger And Times, December 28, 2007, The Murray Ledger And Times

The Murray Ledger & Times

No abstract provided.

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Decree No. 144-2007 - Law For The Production And Consumption Of Biofuels, Congreso Nacional De Honduras Dec 2007

Decree No. 144-2007 - Law For The Production And Consumption Of Biofuels, Congreso Nacional De Honduras

Latin American Energy Policies

Law which has as objective the research, production and use of biofuels in order to contribute to the reduction of environmental pollution, both locally and globally.

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Aristotle's Analytic Tools, Mary Mulhern Dec 2007

Aristotle's Analytic Tools, Mary Mulhern

The Society for Ancient Greek Philosophy Newsletter

Aristotle developed analytic tools to deal with conceptual difficulties that were important in his time. Some of these tools are his explicit analysis of homonymy, his eightfold classification of subjects and predicates and its elaboration into the predicaments and predicables, his syntactical analysis of ordinary language sentences, and his construction of a formal language for deductive and demonstrative syllogistic. Some of these conceptual difficulties are traceable to theories of Ideas, in which definitory predicates were not distinguished from non-definitory ones, as for instance in Hypothesis V of the Parmenides, where it is argued that the (non-existent) one is not equal …

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Fractionation Of The Rice Bran Layer And Quantification Of Vitamin E, Oryzanol, Protein, And Rice Bran Saccharide, Rebecca Schramm, Alicia Abadie, Na Hua, Zhimin Xu, Marybeth Lima Dec 2007

Fractionation Of The Rice Bran Layer And Quantification Of Vitamin E, Oryzanol, Protein, And Rice Bran Saccharide, Rebecca Schramm, Alicia Abadie, Na Hua, Zhimin Xu, Marybeth Lima

Faculty Publications

Value-added processing with respect to rice milling has traditionally treated the rice bran layer as a homogenous material that contains significant concentrations of high-value components of interest for pharmaceutical and nutraceutical applications. Investigators have shown that high-value components in the rice bran layer vary from differences in kernel-thickness, bran fraction, rice variety, and environmental conditions during the growing season. The objectives of this study were to quantify the amount of rice bran removed at pre-selected milling times and to correlate the amount of rice bran removed at each milling time with the concentration of vitamin E, gamma-oryzanol, rice bran saccharide, …

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Evaluation Of The Cinical Use Of Silymarin In Knee Osteoarthritis: Application Of The Dual Inhibitory Concept Of Cyclooxygenase And 5-Lipoxygenase, Intesar Tariq Numan Dec 2007

Evaluation Of The Cinical Use Of Silymarin In Knee Osteoarthritis: Application Of The Dual Inhibitory Concept Of Cyclooxygenase And 5-Lipoxygenase, Intesar Tariq Numan

Iraqi Postgraduate Medical Journal

ABSTRACT: BACKGROUND: Many compounds from natural sources, including silymarin, proved to have effective inhibitory effects on cyclooxygenase (COX) and 5-lipoxygenase (5-LO) in vitro qnd experimental animals. The exellent pharmacological pre-clinical profile of these compounds indicates a broad range anti-inflammatory effectiveness devoid of the most troublesome side effects, which have at least impart impaired the clinical use of the classical COX inhibitors, including the newer selective COX-2 inhibitors. OBJECTIVES: This project designed to evaluate the clinical utility of silymarin, as a dual inhibitor of COX and 5-LO, as a single agent or in combination with non-steroidal anti-inflammatory drugs (NSAIDs) of both …

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The Role Of Oxidative Stress In The Pathogenesis Of Systemic Lupus Erythmatosus (Sle) Among Some Iraqi Patients, Ihab Ibrahim Abdulwahab Dec 2007

The Role Of Oxidative Stress In The Pathogenesis Of Systemic Lupus Erythmatosus (Sle) Among Some Iraqi Patients, Ihab Ibrahim Abdulwahab

Iraqi Postgraduate Medical Journal

ABSTRACT: BACKGROUND AND OBJECTIVE: Systemic Lupus Erythematosus (SLE) is a chronic progressive autoimmune disorder with a wide spectrum of clinical and immunological abnormalities, predominantly developed in women of childbearing age, oxidative stress has been postulated in many pathological conditions including atherosclerosis , inflammatory conditions and some autoimmune disease such as multiple sclerosis , rheumatoid arthritis and Systemic Lupus Erythematosus (SLE). The present study was conducted to support the idea of oxidative stress during the pathogenesis of (SLE) among some Iraqi patients, comparing it with healthy controls group matched for the same sex and age . PATIENTS AND METHODS: Twenty-three Iraqi …

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Starspots And Relativity: Applied Doppler Imaging For The Gravity Probe B Mission, Stephen C. Marsden, Svetlana V. Berdyugina, Jean-Francois Donati, Joel A. Eaton, Michael H. Williamson Dec 2007

Starspots And Relativity: Applied Doppler Imaging For The Gravity Probe B Mission, Stephen C. Marsden, Svetlana V. Berdyugina, Jean-Francois Donati, Joel A. Eaton, Michael H. Williamson

Information Systems and Engineering Management Research Publications

We present Doppler images and surface differential rotation measurements for the primary of the RS CVn binary IM Pegasi, the guide star for the Gravity Probe B experiment. The data used is a subset of that taken during optical support of the mission and was obtained almost nightly over a near three year period from the Automatic Spectroscopic Telescope operated by Tennessee State University. Using the technique of least-squares deconvolution to increase the signal-to-noise ratio of the data, we have reconstructed 31 maximum entropy Doppler images of the star. The images show that the spot features are relatively stable for …

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Phase Dynamics Of Inas/Gaas Quantum Dot Semiconductor Optical Amplifiers, T. Piwonski, Guillaume Huyet, Et. Al. Dec 2007

Phase Dynamics Of Inas/Gaas Quantum Dot Semiconductor Optical Amplifiers, T. Piwonski, Guillaume Huyet, Et. Al.

Physical Sciences Publications

The gain and phase dynamics of InAs∕GaAs quantum dot amplifiers are studied using single and two-color heterodyne pump probe spectroscopy. The relaxation of the wetting layer carrier density is shown to have a strong effect on the phase dynamics of both ground and excited state transients, while having a much weaker effect on the gain dynamics. In addition, the dynamical alpha factor may also display a constant value after an initial transient. Such behavior is strongly encouraging for reduced pattern effect operation in high speed optical networks.

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Effect Of The Co2 Grinding On Modified Atmosphere And Color Shelf Life Of Ground Beef, Sofiane Ghris Dec 2007

Effect Of The Co2 Grinding On Modified Atmosphere And Color Shelf Life Of Ground Beef, Sofiane Ghris

All Theses

Beef ground under air and carbon dioxide (CO2) conditions were evaluated for their storage stability at 2 ± 1¼C starting after 2 days in the dark to simulate transportation, followed by 7 days in lighted display by measuring color (CIE L*, a*, b*, the hue and chroma), gas headspace, microbiological content, and pigment content. AC (ground in air then packaged in 100% CO2 MAP) and CC (ground in CO2 then packaged in 100% CO2 MAP) treatments showed the highest a* and chroma values from day 3 to 9 compared with AV (ground in air then vacuum packaged) and CV (ground …

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The Murray Ledger And Times, December 26, 2007, The Murray Ledger And Times Dec 2007

The Murray Ledger And Times, December 26, 2007, The Murray Ledger And Times

The Murray Ledger & Times

No abstract provided.

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Role Of Penicillin Binding Proteins And Amidases In Daughter Cell Separation In Escherichia Coli, Richa Priyadarshini Dec 2007

Role Of Penicillin Binding Proteins And Amidases In Daughter Cell Separation In Escherichia Coli, Richa Priyadarshini

Theses and Dissertations

In the final stages of the bacterial growth cycle, daughter cells must be released from one another by cleaving the shared peptidoglycan cell wall that separates them. Although enzymes capable of cleaving bonds in the murein sacculus are ubiquitous among the bacteria, the physiological roles of only a few of these enzymes are clear. The peptidoglycan-specific amidases play an important role in cleaving the septum to release daughter cells after cell division in Escherichia coli. E. coli has three amidases dedicated to this task: AmiA, AmiB and AmiC. These enzymes remove side chains from the peptidoglycan by hydrolyzing the bond …

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The Use Of Information Books In The Preschool Classroom: Possibilities For Nurturing The Young Scientific Mind, Pamela A. Langlie Dec 2007

The Use Of Information Books In The Preschool Classroom: Possibilities For Nurturing The Young Scientific Mind, Pamela A. Langlie

Theses and Dissertations

The use of information books in the preschool classroom, and the potential of the books and the learning activities associated with the books for promoting science among young children are explored. The research was first conducted with four children at a university children's center, and then replicated in a whole class setting at a college child development lab school in another state. Using qualitative procedures the study produced several grounded theories which led to the assertion that preschoolers, independently of their teachers, select information books according to their developmental interests, and use the books for exploring scientific concepts, and to …

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Analysis Of Host Responses Against The Plague, Deanna O'Bryant Dec 2007

Analysis Of Host Responses Against The Plague, Deanna O'Bryant

Theses and Dissertations

Yersinia pestis, the causative agent of plague, is endemic to most of the world. Y. pestis' potential threat as a biological warfare agent has drawn increased attention to pathogenesis and vaccine research for the plague. A number of characteristics related both to the host response to, and bacterial pathogenesis of, Y. pestis were examined. To investigate the potential role of MHC Class II antigen presentation during the plague, HLA-DQ8αβ transgenic mice were infected with Y. pestis. DQ8 mice demonstrated a greatly enhanced age-dependent resistance to Y. pestis infection with females more resistant than males, mimicking gender differences in human plague, …

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Imaging Thermal Stratigraphy In Freshwater Lakes Using Georadar, John H. Bradford, Cody R. Johnson, Troy Brosten, James P. Mcnamara, Michael N. Gooseff Dec 2007

Imaging Thermal Stratigraphy In Freshwater Lakes Using Georadar, John H. Bradford, Cody R. Johnson, Troy Brosten, James P. Mcnamara, Michael N. Gooseff

CGISS Publications and Presentations

Thermal stratification exerts significant control over biogeochemical processing in freshwater lakes. Thus, the temporal and spatial distribution of the thermal structure is an important component in understanding lake ecosystems. We present the first reported observations of lake thermal stratification from surface based georadar measurements acquired over two small freshwater lakes. This method is very useful because it can provide rapid acquisition of 2D or 3D lotic stratification.

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Use Of Parthenolide Derivatives As Antileukemic And Cytotoxic Agents, Peter A. Crooks, Craig T. Jordan, Xiaochen Wei Dec 2007

Use Of Parthenolide Derivatives As Antileukemic And Cytotoxic Agents, Peter A. Crooks, Craig T. Jordan, Xiaochen Wei

Pharmaceutical Sciences Faculty Patents

Compounds of the formula having anti-tumor activity, wherein R1 and R2 are as described herein

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