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Articles 12211 - 12240 of 18912
Full-Text Articles in Entire DC Network
Humane Living
Serial - All Animals 2009-15
How to Build a Backyard Oasis; Recipe Box: Rocky Road Cupcakes
The Global Fight For Wildlife, Teresa Telecky
The Global Fight For Wildlife, Teresa Telecky
Serial - All Animals 2009-15
Humane Society International works to curtail a booming and inhumane trade in vulnerable species
Identification Of Parelaphostrongylus Odocoilei (Nematoda: Protostrongylidae) First-Stage Larvae In The Feces Of Gray Wolves (Canis Lupus) By Molecular Methods, Heather M. Bryan, Kathrin A. Sim, Chris T. Darimont, Paul C. Paquet, Brent Wagner, Violeta Muñoz-Fuentes, Judit E. Smits, Nell B. Chilton
Identification Of Parelaphostrongylus Odocoilei (Nematoda: Protostrongylidae) First-Stage Larvae In The Feces Of Gray Wolves (Canis Lupus) By Molecular Methods, Heather M. Bryan, Kathrin A. Sim, Chris T. Darimont, Paul C. Paquet, Brent Wagner, Violeta Muñoz-Fuentes, Judit E. Smits, Nell B. Chilton
Parasitology Collection
First-stage nematode larvae with a dorsal-spine (DSL) were detected in five of 1,565 fecal samples from gray wolves (Canis lupus) collected in British Columbia, Canada, between 2005 and 2008. Molecular techniques were used to identify the DSL because it was not possible to determine their species identity using morphologic characters. The DSL were identified as Parelaphostrongylus odocoilei based on the results of single-strand conformation polymorphism (SSCP) analyses and DNA sequencing of the ribosomal DNA first and second internal transcribed spacers. Finding DSL of P. odocoilei in the feces of gray wolves was unexpected because P. odocoilei adults are parasites of …
The Welfare Of Animals In The Pig Industry
The Welfare Of Animals In The Pig Industry
Agribusiness Reports
The discordance between the behavioral needs of pigs and the life afforded to those raised commercially for the meat industry has created many animal welfare problems. Methods of pig production have changed substantially over the last several decades, and industrialized confinement operations have largely overtaken small, diversified farms. Overcrowded in indoor, barren environments, pigs in commercial production facilities are offered little opportunity to display their full range of complex social, foraging, and exploratory behavior. Behavioral abnormalities, such as tail-biting and aggression, arise due to environmental and social deficiencies. Poor air quality and intensive confinement may lead to health problems, and …
The Welfare Of Piglets In The Pig Industry
The Welfare Of Piglets In The Pig Industry
Agribusiness Reports
Pig production has changed dramatically over the last several decades, and most piglets are now raised on industrialized commercial operations that confine thousands of animals on one site. In these facilities, piglets are born and reared under conditions that dramatically contrast with the natural environment they are biologically adapted to fit. In nature, a mother sow builds a nest of twigs and leaves for the birth of her litter, and, after several days, the piglets gradually begin to leave the nest, explore their environment by rooting and nibbling, and slowly integrate into a larger family group. Piglets on commercial production …
Welfare Issues With Furnished Cages For Egg-Laying Hens
Welfare Issues With Furnished Cages For Egg-Laying Hens
Agribusiness Reports
Furnished cages were developed in response to criticisms about conventional battery-cage confinement of laying hens in commercial egg production. Battery cages—small, barren, wire enclosures—restrictively confine the birds, depriving them of the opportunity to display many important patterns of behavior. In contrast, furnished cages are typically equipped with a nest box, perch, and dustbathing area, thereby providing more behavioral outlets than conventional cages. However, similar to conventional battery cages, furnished cages provide an unacceptably limited amount of space per bird; prevent many important locomotory activities, including running, jumping, flying, and wing-flapping; and constrain perching, dustbathing, and nesting. The severe locomotory restriction …
Understanding Mortality Rates Of Laying Hens In Cage-Free Egg Production Systems
Understanding Mortality Rates Of Laying Hens In Cage-Free Egg Production Systems
Agribusiness Reports
In cage-free egg production systems, concerns have been raised over hen mortality rates. High mortality is an obvious indicator of poor welfare, and problems should be addressed without delay. It is important to note, however, that mortality can vary substantially between hen flocks, and that some cage-free systems have healthy flocks that do not suffer substantial death losses. These systems can serve as models for the rest of the industry, since mortality is not inherent to any particular system, but a consequence of how well the system is managed.
About Chickens
Agribusiness Reports
The chicken is the world’s most numerous domesticated bird, with over 52 billion farmed worldwide in 2008, rivaling the dog as the most ubiquitous domestic animal globally. These birds have fascinated scholars and researchers since the dawn of Western civilization, and recent studies are beginning to reveal the depths of their complexity and cognitive ability. According to Andrew F. Fraser, professor of veterinary surgery at Memorial University of Newfoundland, and Donald M. Broom, professor of animal welfare at University of Cambridge: “Those who have studied the behaviour of the domestic fowl in detail…, especially those who have looked at feral …
Non-Invasive Methods Of Identifying And Tracking Wild Squid, Ruth A. Byrne, James B. Wood, Roland C. Anderson, Ulrike Griebel, Jennifer A. Mather
Non-Invasive Methods Of Identifying And Tracking Wild Squid, Ruth A. Byrne, James B. Wood, Roland C. Anderson, Ulrike Griebel, Jennifer A. Mather
Morality and Ethics of Animal Experimentation Collection
The ability to identify individual free-living animals in the field is an important method for studying their behavior. Apart from invasive external or internal tags, which may cause injury or abnormal behavior, most cephalopods cannot be tagged, as their skin is too soft and delicate for tag retention. Additionally, cephalopods remove many types of tags. However, body markings have been successfully used as a non invasive method to identify individuals of many different species of animals, including whale sharks, grey whales, seals, and zebras. We developed methods to sex and individually identify Caribbean reef squid, Sepiotheuthis sepioidea. Males showed distinct …
Memorabilia 2010, Kean University
Non-Planar Diamond Electrodes For Biomedical Neural Sensing And Stimulating, Jeffrey M. Halpern
Non-Planar Diamond Electrodes For Biomedical Neural Sensing And Stimulating, Jeffrey M. Halpern
Chemical Engineering
Abstract
Conductive diamond has exceptional chemical stability, making it an appealing candidate material for long-term medical device implants. This work describes the characterization, and fabrication of four diamond-based neural devices. A previously developed 30 µm diamond-disk in vitro needle electrode was characterized. The device could detect 1 nM concentration analytes in a flow cell using fast scan cyclic voltammetry, but the fabrication was not reproducible. A novel in vitro diamond device was developed with diamond selectively grown at the tip of a hollow quartz capillary, resulting in a 2-4 µm tip diameter. The diamond tip shape and size were geometrically …
Does The Theory Of Planned Behavior Predict Intentions To Seek Help For Suicidality?, Jennifer Lynn Mills
Does The Theory Of Planned Behavior Predict Intentions To Seek Help For Suicidality?, Jennifer Lynn Mills
Theses, Dissertations and Capstones
The purpose of the current project is to relate disparate lines of research on suicide prevention and help-seeking using Azjen’s (1991) Theory of Planned Behavior (TpB). Two studies examined college students’ beliefs about help-seeking for emotional problems. In Study 1, 37 undergraduates responded to open-ended questions about a variety of help-seeking behaviors. These responses were categorized. Frequencies and percentages were calculated for each category. In Study 2, 143 undergraduates completed two mental health inventories and a TpB survey constructed by the experimenter. A model containing the three TpB predictor variables—attitudes (M = 15.29, SD = 3.57), perceived social norms (M …
Pharmaceutical Crops: An Overview, Shiyou Li, Wei Yuan, Peiying Yang, Mikhail Antoun, Michael Balick, Gordon Cragg
Pharmaceutical Crops: An Overview, Shiyou Li, Wei Yuan, Peiying Yang, Mikhail Antoun, Michael Balick, Gordon Cragg
Faculty Publications
Pharmaceutical crops is an ambiguous term used by biologists and chemists for different categories of plants. We define pharmaceutical crops as those cultivated species that are used for extraction or preparation of therapeutic substances such as active pharmaceutical ingredients (APIs), excipients used in pharmaceutical formulations, vaccines and antibodies, as well as other therapeutic proteins. Based on the type of pharmaceutical product, these crops can be classified into three distinct yet sometimes overlapping categories: crops for the production of small therapeutic molecules (STMs), large therapeutic molecules (LMTs), or standard therapeutic extracts (STEs). This review briefly discusses the relationships of pharmaceutical crops …
An Overview Of Genus Aesculus L.: Ethnobotany, Phytochemistry, And Pharmacological Activities, Shiyou Li, Xiao-Yuan Lian, Zhizhen Zhang
An Overview Of Genus Aesculus L.: Ethnobotany, Phytochemistry, And Pharmacological Activities, Shiyou Li, Xiao-Yuan Lian, Zhizhen Zhang
Faculty Publications
The genus Aesculus L. (Hippocastanaceae) has 12 species distributed in eastern Asia, eastern and western North America, and Europe. In Europe and the United States, A. hippocastanum has been used for the treatment of chronic venous insufficiency, hemorrhoids, and postoperative edema. In China, A. chinensis var. chinense has been used as a stomachic and analgesic in the treatment of distention and pain in the chest and the abdomen, malaria, dysentery, and heart disease. The objective of this paper is to review the ethnobotany, phytochemistry, and pharmacological properties of the genus Aesculus. To date, more than 210 compounds have been isolated …
Sesquiterpenes And Dimeric Sesquiterpenoids From Sarcandra Glabra, Xiu-Feng He, Sheng Yin, Yin-Chun Ji, Zu-Shang Su, Mei-Yu Geng, Jian-Min Yue
Sesquiterpenes And Dimeric Sesquiterpenoids From Sarcandra Glabra, Xiu-Feng He, Sheng Yin, Yin-Chun Ji, Zu-Shang Su, Mei-Yu Geng, Jian-Min Yue
Faculty Publications
Two new sesquiterpenes, sarcandralactones A (1) and B (2), and five new dimeric sesquiterpenoids, sarcandrolides A-E (3-7), along with 10 known compounds were isolated from the whole plants of Sarcandra glabra. Their structures were elucidated on the basis of spectroscopic analysis. Some of the new isolates exhibit significant cytotoxicities when tested against a small panel of tumor cell lines.
2010 Survey Of Juvenile Law, Michael J. Dale
94th Annual Meeting, 2010. Secretary's Report And Financial Statement, Academy Editors
94th Annual Meeting, 2010. Secretary's Report And Financial Statement, Academy Editors
Journal of the Arkansas Academy of Science
No abstract provided.
Tribute To Dr. David A. Saugey, Stanley E. Trauth
Tribute To Dr. David A. Saugey, Stanley E. Trauth
Journal of the Arkansas Academy of Science
No abstract provided.
Title Of A Paper Prepared For The Arkansas Academy Of Science Journal [Instructions For Prospective Authors], Academy Editors
Title Of A Paper Prepared For The Arkansas Academy Of Science Journal [Instructions For Prospective Authors], Academy Editors
Journal of the Arkansas Academy of Science
No abstract provided.
Nutrient Flux, Uptake, And Transformation In A Spring-Fed Stream In The Missouri Ozarks, Usa, Dev Niyogi, Janet M. Bandeff, Cem Selman, Drew E. Menke
Nutrient Flux, Uptake, And Transformation In A Spring-Fed Stream In The Missouri Ozarks, Usa, Dev Niyogi, Janet M. Bandeff, Cem Selman, Drew E. Menke
Biological Sciences Faculty Research & Creative Works
We examined nutrient flux, uptake, and transformation along a spring-fed stream in the Ozark region of Missouri, USA, over the year 2006. Water in Mill Creek originates from several springs, with a single spring contributing over 90% of the stream discharge during much of the year of study. Soluble reactive phosphate concentrations were usually low (< 10 lg L-1) along Mill Creek but peaked during high discharge. Concentrations of dissolved inorganic nitrogen (DIN) were relatively high in the spring water, mainly as nitrate, but usually declined across a small pond and the 10-km length of Mill Creek. During low flows in …
2010 Report On Giving, University Of Minnesota, Morris Office Of External Relations
2010 Report On Giving, University Of Minnesota, Morris Office Of External Relations
Report on Giving
No abstract provided.
Expanding Opportunity Structures: Parental Investments In Education, Migration, And Extrinsic Risk Reduction Among Indo-Fijians, Dawn B. Neill
Expanding Opportunity Structures: Parental Investments In Education, Migration, And Extrinsic Risk Reduction Among Indo-Fijians, Dawn B. Neill
Social Sciences
Parental investment strategies are contingent on parental capacities and ecology. Parental embodied capital may be important in aspiration construction and investments in children’s human capital, which is especially important in urban environments where skills are directly tied to wage income. For Indo-Fijians, rural ecology strongly limits opportunities. Here this limitation is conceptualized as extrinsic risk and immune to reduction through enhanced parental investment. Urban migration is interpreted as a risk reduction strategy, given an expanded urban opportunity structure (lower extrinsic risk). Qualitative and quantitative data from 678 Indo-Fijian children suggest that, contingent on parental capacities, parents migrate in response to …
Growth From Birth To Adulthood And Abdominal Obesity In A Brazilian Birth Cohort, D. A. Gonzalez, Aydin Nazmi, C. G. Victoria
Growth From Birth To Adulthood And Abdominal Obesity In A Brazilian Birth Cohort, D. A. Gonzalez, Aydin Nazmi, C. G. Victoria
Food Science and Nutrition
Background: Rapid weight gain in childhood may increase the risk of chronic adult diseases. Few studies have examined the effects of lifecourse weight gain on waist circumference (WC), hip circumference (HC), or waist-to-hip ratio (WHR).
Objective: To evaluate the effects of birthweight and weight gain from birth to age 23 years on WC, HC, and WHR in young adults.
Design: Population-based birth cohort study started in 1982. A sample of 856 individuals was examined in 2006. Conditional growth analyses were carried out with adjustment for confounders. WC and HC were also mutually adjusted.
Results: Weight gains during all age ranges …
Investigating The Protective Properties Of Milk Phospholipids Against Ultraviolet Light Exposure In A Skin Equivalent Model, Ashley Russell, Andrea Laubscher, Rafael Jiménez-Flores, Lily H. Laiho
Investigating The Protective Properties Of Milk Phospholipids Against Ultraviolet Light Exposure In A Skin Equivalent Model, Ashley Russell, Andrea Laubscher, Rafael Jiménez-Flores, Lily H. Laiho
Dairy Science
Current research on bioactive molecules in milk has documented health advantages of bovine milk and its components. Milk Phospholipids, selected for this study, represent molecules with great potential benefit in human health and nutrition. In this study we used confocal reflectance and multiphoton microscopy to monitor changes in skin morphology upon skin exposure to ultraviolet light and evaluate the potential of milk phospholipids in preventing photodamage to skin equivalent models. The results suggest that milk phospholipids act upon skin cells in a protective manner against the effect of ultraviolet (UV) radiation. Similar results were obtained from MTT tissue viability assay …
Digester Selection And Operation For Heybeli Island, Spencer Fackler, Joseph Violetti
Digester Selection And Operation For Heybeli Island, Spencer Fackler, Joseph Violetti
Industrial and Manufacturing Engineering
The Heybeli Digester project originated with Sema Alptekin in her personal research and was incorporated into a Senior Project opportunity at California Polytechnic State University, San Luis Obispo. The aim of this project was to select and design a plan for the use of a digester for the island of Heybeli, Turkey. The objective of this plan was to incorporate economic, social, and environmental justifications to evaluate if a digester would be a benefit to the community.
Systems Engineering analysis is a vital tool when working with complicated projects that include multiple systems interfacing with one another. Through the use …
Ethics Of Human Enhancement: 25 Questions & Answers, Fritz Allhoff, Patrick Lin, James Moor, John Weckert
Ethics Of Human Enhancement: 25 Questions & Answers, Fritz Allhoff, Patrick Lin, James Moor, John Weckert
Philosophy
This paper presents the principal findings from a three-year research project funded by the US National Science Foundation (NSF) on ethics of human enhancement technologies. To help untangle this ongoing debate, we have organized the discussion as a list of questions and answers, starting with background issues and moving to specific concerns, including: freedom & autonomy, health & safety, fairness & equity, societal disruption, and human dignity. Each question-and answer pair is largely self-contained, allowing the reader to skip to those issues of interest without affecting continuity.
Small Heat Shock Protein Responses Differ Between Chaparral Shrubs From Contrasting Microclimates, Charles A. Knight
Small Heat Shock Protein Responses Differ Between Chaparral Shrubs From Contrasting Microclimates, Charles A. Knight
Biological Sciences
Small heat shock protein (sHsp) responses were studied for two evergreen perennial shrubs in the northern California chaparral; one common on warm, south-facing slopes (Ceanothus cuneatus), and the other on cooler, north-facing slopes (Prunus ilicifolia). Small Hsp expression was induced experimentally for field collected leaves. Leaf collections were made where the species co-occur. Small Hsp expression was quantified using two antibodies, one specific to a chloroplast 22 kD sHsp and another that detects a broad range of sHsps. Differences between chloroplast sHsp accumulation, which protects thermally labile proteins in PSII, and the general sHsp response were …
On The Relationship Between Pollen Size And Genome Size, Charles A. Knight, Rachel B. Clancy, Lars Götzenberger, Leighton Dann, Jeremy M. Beaulieu
On The Relationship Between Pollen Size And Genome Size, Charles A. Knight, Rachel B. Clancy, Lars Götzenberger, Leighton Dann, Jeremy M. Beaulieu
Biological Sciences
Here we test whether genome size is a predictor of pollen size. If it were, inferences of ancient genome size would be possible using the abundant paleo-palynolgical record. We performed regression analyses across 464 species of pollen width and genome size. We found a significant positive trend. However, regression analysis using phylogentically independent contrasts did not support the correlated evolution of these traits. Instead, a large split between angiosperms and gymnosperms for both pollen width and genome size was revealed. Sister taxa were not more likely to show a positive contrast when compared to deeper nodes. However, significantly more congeneric …