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Articles 6691 - 6720 of 14133
Full-Text Articles in Entire DC Network
Gangrenous Ecthyma In Infancy, Samir Atmani, Larbi Larqam, Abdelhak Bouharrou, Moustapha Hida
Gangrenous Ecthyma In Infancy, Samir Atmani, Larbi Larqam, Abdelhak Bouharrou, Moustapha Hida
Saudi Medical Journal
No abstract provided.
Early-Onset Alcohol Use Among Native American Youth: Examining Female Caretaker Influence, Melissa L. Walls, Les B. Whitbeck, Dan R. Hoyt, Kurt D. Johnson
Early-Onset Alcohol Use Among Native American Youth: Examining Female Caretaker Influence, Melissa L. Walls, Les B. Whitbeck, Dan R. Hoyt, Kurt D. Johnson
Department of Sociology: Faculty Publications
This article investigates the influence of female caretaker substance use on early-onset youth drinking among Native American families in the Northern Midwest. Data include 603 Native American families, with reports from female caretakers and youths aged 10–13 years. Two potential caretaker influences are taken into account: adolescent modeling of caretaker behaviors and the effects of caretaker substance abuse on parenting. Results of bivariate and path analysis provide support for the influence of caretaker substance use on adolescent drinking from both perspectives; these effects vary, however, depending on the type or degree of adult substance use, or both.
Research Note: Bolivian Ectoparasites: A Survey Of Bats (Mammalia: Chiroptera), Carl W. Dick, Donald Gettinger, Scott Lyell Gardner
Research Note: Bolivian Ectoparasites: A Survey Of Bats (Mammalia: Chiroptera), Carl W. Dick, Donald Gettinger, Scott Lyell Gardner
Harold W. Manter Laboratory of Parasitology: Faculty Publications
A survey collection of arthropods associated with bats documents new distributional records of Bolivian ectoparasites. New species records include Acari: Mesostigmata: Spinturnicidae —Periglischrus caligus Kolenati, Periglischrus iheringi Oudemans, Periglischrus ojasti Machado-Allison; Macronyssidae—Radfordiella oudemansi Fonseca; Metastigmata: Argasidae—Ornithodoros hasei (Schulze); Insecta: Diptera: Streblidae—Anastrebla caudiferae Wenzel, Anastrebla modestini Wenzel, Anatrichobius scorzai Wenzel, Exastinion deceptivum Wenzel, Megistopoda theodori Wenzel, Neotrichobius delicatus (Machado-Allison), Paradyschiria fusca Speiser, Paraeuctenodes similis Wenzel, Strebla curvata Wenzel, Strebla guajiro (Garcı´a & Casal), Trichobius petersoni Wenzel, and Trichobius tiptoni Wenzel.
Haemodipsus Brachylagi N. Sp. (Phthiraptera: Anoplura: Polyplacidae), A New Sucking Louse From The Pygmy Rabbit In Nevada, Lance A. Durden, Robert L. Rausch
Haemodipsus Brachylagi N. Sp. (Phthiraptera: Anoplura: Polyplacidae), A New Sucking Louse From The Pygmy Rabbit In Nevada, Lance A. Durden, Robert L. Rausch
Harold W. Manter Laboratory of Parasitology: Faculty Publications
The male and female of Haemodipsis brachylagi,/i> n. sp. (Phthiraptera: Anoplura) are described from specimens collected from a pygmy rabbit, Brachylagus idahoensis (Merriam) (Lagomorpha: Leporidae), from Nevada. Morphological features that differentiate the new species from other known species of Haemodipsus are elucidated, and an identification key to both sexes of the three species now known from this genus in North America is included. Geographical distributions of the other four species of Haemodipsus known from other parts of the world are highlighted.
Heterogeneous Formation Of Hono On Hno3 Pre-Conditioned Hydrophobic, Hydrophilic And Ionic Surfaces At Various Relative Humidities, Dustin S. Wier
Heterogeneous Formation Of Hono On Hno3 Pre-Conditioned Hydrophobic, Hydrophilic And Ionic Surfaces At Various Relative Humidities, Dustin S. Wier
Masters Theses
Nitric acid (HNO3) is a major sink for NOx (NO+NO2 ) and is known to be removed from the atmosphere as a result of wet and dry deposition where it is then deposited on various surfaces in the environment. As these surfaces are photolyzed HONO is produced which affects the overlying troposphere. This study examines the amount of HONO (Nitrous Acid) produced by the photolysis of adsorbed HNO3 as a function of changing relative humidity on hydrophobic, hydrophilic, and inorganic ionic salt surfaces. The amount of HONO produced was measured in long path cell using …
Transcriptional Regulation Of Glucose-6-Phosphate Dehydrogenase (G6pdh) By Glucose, Pramod U. Thekkat
Transcriptional Regulation Of Glucose-6-Phosphate Dehydrogenase (G6pdh) By Glucose, Pramod U. Thekkat
Masters Theses
In liver, insulin and glucose regulate the expression of important genes for lipid and carbohydrate homeostasis. Studies on the effects of glucose and insulin, including effects on cell signaling, are vital since deficiencies in glucose utilization in cells and/or insulin secretion contribute to conditions like obesity and diabetes. In liver, the pentose phosphate pathway is one of the primary pathways that can utilize the excess carbohydrate. Glucose-6-phosphate dehydrogenase (G6PDH) is an important rate limiting enzyme in this pathway. Our laboratory has shown that both insulin and glucose induce the expression of G6PDH, although the mechanism by which this transcriptional regulation …
Spiders Fluoresce Variably Across Many Taxa, Kindra Andrews, Scott M. Reed, Susan E. Masta
Spiders Fluoresce Variably Across Many Taxa, Kindra Andrews, Scott M. Reed, Susan E. Masta
Biology Faculty Publications and Presentations
The evolution of fluorescence is largely unexplored, despite the newfound occurrence of this phenomenon in a variety of organisms. We document that spiders fluoresce under ultraviolet illumination, and find that the expression of this trait varies greatly among taxa in this species-rich group. All spiders we examined possess fluorophores in their haemolymph, but bright fluorescence appears to result when a spider sequesters fluorophores in its setae or cuticle. By sampling widely across spider taxa, we determine that fluorescent expression is labile and has evolved multiple times. Moreover, examination of the excitation and emission properties of extracted fluorophores reveals that spiders …
A Cautionary Tale: Cryptic Sexual Size Dimorphism In A Socially Monogamous Passerine, Michael T. Murphy
A Cautionary Tale: Cryptic Sexual Size Dimorphism In A Socially Monogamous Passerine, Michael T. Murphy
Biology Faculty Publications and Presentations
Among socially monogamous birds, standard metrics suggest that males are only ∼5% larger than females. An untested assumption is that, with the exception of reproductive systems, males and females are scaled mirror images of one another. I used external morphological and skeletal data, and information on muscle mass and organ size, to test this assumption in a population of breeding Eastern Kingbirds (Tyrannus tyrannus). Male and female Eastern Kingbirds exhibited no differences in body mass or standard measures of size, except in a longer (∼6%) wing chord and tail in males. However, keel length, a character rarely measured …
The Rhetoric Of Symmetry, Karen Petroski
The Rhetoric Of Symmetry, Karen Petroski
All Faculty Scholarship
References to the concept of symmetry have appeared in judicial opinions, advocacy efforts, and scholarly commentary throughout American legal history. But for every legal writer who invokes the concept as a logical or moral ideal, there is another who dismisses it as a formalistic distraction or an arid illusion. What is more, although legal writers virtually always use the term “symmetry” as if its meaning were self-evident, in fact they have used the same term to refer to a variety of distinct concepts, each with its own ambiguities.
Zephyr Lilies: Simple Beauty Belies Complex Biology, W. John Hayden
Zephyr Lilies: Simple Beauty Belies Complex Biology, W. John Hayden
Biology Faculty Publications
It is often thus, the best in art appears effortless; the most compelling science, once understood, seems obvious. But talk at length with any artist or scientist and you will learn that what appears simple is actually the culmination of a great deal of work. Zephyr, or Jamestown, lilies are like that, too. These seemingly simple flowers are merely the elegant end product of some very complex underlying biology, the details of which are imperfectly understood.
Mining Colossal Frequent Patterns By Core Pattern Fusion, Feida Zhu, Xifeng Yan, Jiawei Han, Philip S. Yu, Hong Cheng
Mining Colossal Frequent Patterns By Core Pattern Fusion, Feida Zhu, Xifeng Yan, Jiawei Han, Philip S. Yu, Hong Cheng
Research Collection School Of Computing and Information Systems
Extensive research for frequent-pattern mining in the past decade has brought forth a number of pattern mining algorithms that are both effective and efficient. However, the existing frequent-pattern mining algorithms encounter challenges at mining rather large patterns, called colossal frequent patterns, in the presence of an explosive number of frequent patterns. Colossal patterns are critical to many applications, especially in domains like bioinformatics. In this study, we investigate a novel mining approach called Pattern-Fusion to efficiently find a good approximation to the colossal patterns. With Pattern-Fusion, a colossal pattern is discovered by fusing its small core patterns in one step, …
Response Patterns: Effect Of Day Of Receipt Of An E-Mailed Survey Instrument On Response Rate, Response Time, And Response Quality, Glen Shinn, Matt Baker, Gary Briers
Response Patterns: Effect Of Day Of Receipt Of An E-Mailed Survey Instrument On Response Rate, Response Time, And Response Quality, Glen Shinn, Matt Baker, Gary Briers
Journal of Extension
Are you seeking ways to improve response to e-mailed survey instruments? We examined effects of day of receipt of an e-mailed survey instrument on 1) response rate, 2) length of time lapsed in responding, and 3) quality of response. No significant differences were explained by day of receipt of an e-mailed survey instrument on response rate, response time, or response quality. Two recommendations evolved: 1) use a complement of best practices, including advanced notice and multiple follow-up to increase participation of potential nonrespondents, and 2) understand the audience's preferred modality, organizational values, communication patterns, and medium to elicit information.
Postpartum Depression Post Andrea Yates, Patricia R. Luca
Postpartum Depression Post Andrea Yates, Patricia R. Luca
Senior Honors Theses
Scientific research does not occur without influence from media and culture. Certainly, changes in funding decisions and publishing patterns are not immune to the influence of a single fantastic case. Andrea Yates' gruesome murder of her five children is just that type of case. The present paper focuses on the influence of that case on postpartum depression research in terms of both content and volume. The explosion of research on postpartum depression since Yates murdered her children is inarguable, the content of that research was organized into three areas: application of postpartum depression, mother-child relationship, and related constructs and discussed …
A Molecular Evaluation Of The North American “Grassland” Sparrow Clade, John Klicka, Garth M. Spellman
A Molecular Evaluation Of The North American “Grassland” Sparrow Clade, John Klicka, Garth M. Spellman
Ornithology Program (HRC)
Because they share several morphological and ecological characters, the North American sparrow (Emberizidae) genera Ammodramus, Passerculus, and Xenospiza have historically been considered members of a well-defined “grassland” sparrow assemblage. Relationships among the 11 members of this group have been the subject of much taxonomic debate, yet no comprehensive molecular assessment of relationships has been done. We investigated these relationships using mitochondrial DNA sequence data that included complete cytochrome-b and ND2 genes. Phylogenetic reconstructions derived via parsimony, likelihood, and Bayesian methods were congruent. The grassland sparrows, as presently configured, are polyphyletic. Pooecetes gramineus, Amphispiza belli (but not A. …
Inside Unlv, Cate Weeks, Eppie Moore, David Ashley, Grace Russell, Lori Bachand, Shane Bevell
Inside Unlv, Cate Weeks, Eppie Moore, David Ashley, Grace Russell, Lori Bachand, Shane Bevell
Inside UNLV
No abstract provided.
Unlv Magazine, Grace Russell, Gian Galassi, Shane Bevell, Karyn S. Hollingsworth, Jennifer Lawson, Lori Bachand, Cate Weeks, Erin O'Donnell, Peter Starkweather
Unlv Magazine, Grace Russell, Gian Galassi, Shane Bevell, Karyn S. Hollingsworth, Jennifer Lawson, Lori Bachand, Cate Weeks, Erin O'Donnell, Peter Starkweather
UNLV Magazine
No abstract provided.
Production Of Medium Chain Length Polyhydroxyalkanoates From Oleic Acid Using Pseudomonas Putida Pga1 By Fed Batch Culture, Sidik Marsudi, Irene K.P. Tan, Seng Neon Gan, K. B. Ramachandran
Production Of Medium Chain Length Polyhydroxyalkanoates From Oleic Acid Using Pseudomonas Putida Pga1 By Fed Batch Culture, Sidik Marsudi, Irene K.P. Tan, Seng Neon Gan, K. B. Ramachandran
Makara Journal of Technology
Bacterial polyhydroxyalkanoates (PHAs) are a class of polymers currently receiving much attention because of their potential as renewable and biodegradable plastics. A wide variety of bacteria has been reported to produce PHAs including Pseudomonas strains. These strains are known as versatile medium chain length PHAs (PHAs-mcl) producers using fatty acids as carbon source. Oleic acid was used to produce PHAs-mcl using Pseudomonas putida PGA 1 by continuous feeding of both nitrogen and carbon source, in a fed batch culture. During cell growth, PHAs also accumulated, indicating that PHA production in this organism is growth associated. Residual cell increased until the …
Utilization Of Bagasse Cellulose For Ethanol Production Through Simultaneous Saccharification And Fermentation By Xylanase, M. Samsuri, Misri Gozan, R. Mardias, M. Baiquni, Heri Hermansyah, Anondho Wijanarko, Bambang Prasetya, M. Nasikin
Utilization Of Bagasse Cellulose For Ethanol Production Through Simultaneous Saccharification And Fermentation By Xylanase, M. Samsuri, Misri Gozan, R. Mardias, M. Baiquni, Heri Hermansyah, Anondho Wijanarko, Bambang Prasetya, M. Nasikin
Makara Journal of Technology
Utilization of Bagasse Cellulose for Ethanol Production through Simultaneous Saccharification and Fermentation by Xylanase. Bagasse is a solid residue from sugar cane process, which is not many use it for some product which have more added value. Bagasse, which is a lignosellulosic material, be able to be use for alternative energy resources like bioethanol or biogas. With renewable energy resources a crisis of energy in Republic of Indonesia could be solved, especially in oil and gas. This research has done the conversion of bagasse to bioethanol with xylanase enzyme. The result show that bagasse contains of 52,7% cellulose, 20% hemicelluloses, …
Kinetic Model For Triglyceride Hydrolysis Using Lipase:Review, Heri Hermansyah, A. Wijanarko, Dianursanti Dianursanti, Misri Gozan, Praswasti P. D.K Wulan, Rita Arbianti, Roekmijati W. Soemantojo, Tania Surya Utami, Yuliusman Yuliusman, Momoji Kubo, Naomi Shibasaki Kitakawa, Toshiy Yonemoto
Kinetic Model For Triglyceride Hydrolysis Using Lipase:Review, Heri Hermansyah, A. Wijanarko, Dianursanti Dianursanti, Misri Gozan, Praswasti P. D.K Wulan, Rita Arbianti, Roekmijati W. Soemantojo, Tania Surya Utami, Yuliusman Yuliusman, Momoji Kubo, Naomi Shibasaki Kitakawa, Toshiy Yonemoto
Makara Journal of Technology
Triglyceride hydrolysis using lipase has been proposed as a novel method to produce raw materials in food and cosmetic industries such as diacylglycerol, monoacylglycerol, glycerol and fatty acid. In order to design a reactor for utilizing this reaction on industrial scale, constructing a kinetic model is important. Since the substrates are oil and water, the hydrolysis takes place at oil-water interface. Furthermore, the triglyceride has three ester bonds, so that the hydrolysis stepwise proceeds. Thus, the reaction mechanism is very complicated. The difference between the interfacial and bulk concentrations of the enzyme, substrates and products, and the interfacial enzymatic reaction …
A Bimodular Polyconvex Anisotropic Strain Energy Function For Articular Cartilage, Stephen M. Klisch
A Bimodular Polyconvex Anisotropic Strain Energy Function For Articular Cartilage, Stephen M. Klisch
Mechanical Engineering
A strain energy function for finite deformations is developed that has the capability to describe the nonlinear, anisotropic, and asymmetric mechanical response that is typical of articular cartilage. In particular, the bimodular feature is employed by including strain energy terms that are only mechanically active when the corresponding fiber directions are in tension. Furthermore, the strain energy function is a polyconvex function of the deformation gradient tensor so that it meets material stability criteria. A novel feature of the model is the use of bimodular and polyconvex “strong interaction terms” for the strain invariants of orthotropic materials. Several regression analyses …
The Purification Of Helicobacter Pylori Urease Β Subunit Protein And Dna For Vaccine Production, Alyson Moll
The Purification Of Helicobacter Pylori Urease Β Subunit Protein And Dna For Vaccine Production, Alyson Moll
Honors Capstones
No abstract provided.
Applying Model-View-Controller To An Embedded System Simulation, Joseph Dominic Cali
Applying Model-View-Controller To An Embedded System Simulation, Joseph Dominic Cali
Honors Capstones
No abstract provided.
The Tadpole Of Leptodactylus Notoaktites Heyer, 1978 (Anura, Leptodactylidae), Rafael O. De Sá, José A. Langone, Magno V. Segalla
The Tadpole Of Leptodactylus Notoaktites Heyer, 1978 (Anura, Leptodactylidae), Rafael O. De Sá, José A. Langone, Magno V. Segalla
Biology Faculty Publications
The external morphology and oral disc of the tadpole of Leptodactylus notoaktites Heyer, 1978, are described and illustrated for Gosner’s stage 33. The internal oral anatomy was analyzed under SEM at Gosner’s stage 36 whereas chondrocranial anatomy is reported for Gosner’ stage 38. The morphology of this tadpole is compared with those available for other species of the L. mystaceus complex. The overall characteristics do not depart from those known for the genus Leptodactylus and they particularly agree for those of the fuscus species group. The labial tooth row formula is 2(2)/3.
Sex Differentiation Pattern In The Annual Fish Austrolebias Charrua (Cyprinodontiformes: Rivulidae), M. J. Arezo, S. D. Alessandro, N. Papa, Rafael O. De Sá, N. Berois
Sex Differentiation Pattern In The Annual Fish Austrolebias Charrua (Cyprinodontiformes: Rivulidae), M. J. Arezo, S. D. Alessandro, N. Papa, Rafael O. De Sá, N. Berois
Biology Faculty Publications
Sex differentiation process, determination of sexual strategy, and gametogenesis of the annual fish Austrolebias charrua are established. Evidence of histological sex differentiation in an antero-posterior gradient was observed in pre-hatching stages. Sexual strategy corresponds to the “differentiated gonochoric” pattern. Histological analyses of adult gonads showed an asynchronous spawning mode for females and continuous spawning for males. Mature oocytes presented fluid yolk. Testis organization corresponded to a restricted spermatogonial model. Herein, we report the ultrastructural organization of the vitelline envelope and the main features of the sperm of A. charrua. Taking together these results also contribute to phylogenetic studies and …
Reconstructing The Wall Of Virtue: Maxims For The Co-Evolution Of Environmental Law And Environmental Science, J.B. Ruhl
Vanderbilt Law School Faculty Publications
The decision-making framework established by most environmental laws incorporates an outdated Einsteinian model of how science and policy should be positioned within administrative agencies. Laws such as the Endangered Species Act employ a linear model of science and policy in which science is portrayed as operating in a domain separate from policy, the two being separated by a "Wall of Virtue "preventing agency science and scientists from becoming tainted by engagement in the relevant policy context Far from protecting science from politics, however, this approach facilitates agency use of science as a cover for decisions based on social and economic …
The Law And Policy Beginnings Of Ecosystem Services, J.B. Ruhl, James Salzman
The Law And Policy Beginnings Of Ecosystem Services, J.B. Ruhl, James Salzman
Vanderbilt Law School Faculty Publications
Over the past decade, there has been an explosion of interest in ecosystem services from scientists, economists, government officials, entrepreneurs, and the media. This article traces the development of the ecosystem services concept in law and policy. We prepared it in connection with a symposium held at Florida State University in April 2006. The presentations at the symposium, which then developed into the articles in a special issue of the Journal of Land Use and Environmental Law (volume 22, issue 2), approached the topic of ecosystem services and the law from two perspectives. One set of presentations focused on the …
Impact Of Minimum Winter Temperatures On The Population Dynamics Of Dendroctonus Frontalis, J. KhảI TrầN, Tiina Ylioja, Ronald F. Billings, Jacques Régnière, Matthew P. Ayres
Impact Of Minimum Winter Temperatures On The Population Dynamics Of Dendroctonus Frontalis, J. KhảI TrầN, Tiina Ylioja, Ronald F. Billings, Jacques Régnière, Matthew P. Ayres
Dartmouth Scholarship
Predicting population dynamics is a fundamental problem in applied ecology. Temperature is a potential driver of short-term population dynamics, and temperature data are widely available, but we generally lack validated models to predict dynamics based upon temperatures. A generalized approach involves estimating the temperatures experienced by a population, characterizing the demographic consequences of physiological responses to temperature, and testing for predicted effects on abundance. We employed this approach to test whether minimum winter temperatures are a meaningful driver of pestilence from Dendroctonus frontalis (the southern pine beetle) across the southeastern United States. A distance-weighted interpolation model provided good, spatially explicit, …
Banking The Unbanked, Janine Firpo
Banking The Unbanked, Janine Firpo
Journal of Microfinance / ESR Review
No abstract provided.
Federated Searching: Do Undergraduates Prefer It And Does It Add Value?, C. Jeffrey Belliston, Jared L. Howland, Brian C. Roberts
Federated Searching: Do Undergraduates Prefer It And Does It Add Value?, C. Jeffrey Belliston, Jared L. Howland, Brian C. Roberts
Faculty Publications
Randomly selected undergraduates at Brigham Young University, Brigham Young University Idaho and Brigham Young University Hawaii, all private universities sponsored by The Church of Jesus Christ of Latter-day Saints, participated in a study of federated searching. This paper reports the study results including differences in time spent between searching databases in federated and non-federated fashion, satisfaction with citations gathered using each method, preference between methods, and quality of citations retrieved by each method judged by two different rubrics. Undergraduates rated their satisfaction with the citations gathered by federated searching 6.5% higher than their satisfaction using non-federated search methods. Additionally, 70% …
Family Structure, Children, And Law, Vivian E. Hamilton
Family Structure, Children, And Law, Vivian E. Hamilton
Faculty Publications
No abstract provided.