Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network™

Open Access. Powered by Scholars. Published by Universities.®

2012

Discipline
Institution
Keyword
Publication
Publication Type
File Type

Articles 5731 - 5760 of 6750

Full-Text Articles in Entire DC Network

School Wellness Policies, Impacts, And Challenges, Shenay Tekin Damirgi Jan 2012

School Wellness Policies, Impacts, And Challenges, Shenay Tekin Damirgi

Graduate Research Papers

The purpose of this study is to examine the existing literature in order to understand the relationship between school wellness policies and the impact they have on children's dietary behavior and physical activity. The study will take a look at various guidelines that should be included in school wellness policies, the most significant ones being on competitive foods, fundraising, physical education, and nutrition education. Additionally the study will examine the CDC's School Health Index (SHI) and how it has aided schools in both evaluating and improving their school wellness policies.


Cover And Contents Jan 2012

Cover And Contents

Turkish Journal of Biology

No abstract provided.


Bioactive Compounds From Discarded Mushroom Beds, Svsssl Hima Bindu Nidadavolu, Ram Prasad Metuku, Samatha Burra, Rajitha Byram, Singara Charya Maringanti Jan 2012

Bioactive Compounds From Discarded Mushroom Beds, Svsssl Hima Bindu Nidadavolu, Ram Prasad Metuku, Samatha Burra, Rajitha Byram, Singara Charya Maringanti

Turkish Journal of Biology

Discarded dried button, dried oyster, and fresh button mushroom beds were examined for their bioactive compounds and industrial enzymes. Levels of reducing sugars and total sugars were high in all mushroom beds. Carboxymethyl cellulase activity was higher (920 µg/mL) in the dried oyster mushroom bed extract. Schizophyllum commune, Fomitopsis feei, Trametes gibbosa, and Trametes elegans were grown on direct mushroom bed extract, 0.2% glucose-containing mushroom bed extract, and common production medium for determination of growth and lignolytic activities. Since lignolytic activities were high with the direct mushroom bed extract, this medium was further diluted to 1:1 and 1:2 ratios and …


Deletion Of Polyphosphate Kinase Gene (Ppk)Has A Stimulatory Effect On Actinorhodin Production By Streptomyces Coelicolor A3(2), İrem Yalim Camci, Tuğrul Doruk, Ümmehan Avi̇can, Sedef Tunca Gedi̇k Jan 2012

Deletion Of Polyphosphate Kinase Gene (Ppk)Has A Stimulatory Effect On Actinorhodin Production By Streptomyces Coelicolor A3(2), İrem Yalim Camci, Tuğrul Doruk, Ümmehan Avi̇can, Sedef Tunca Gedi̇k

Turkish Journal of Biology

Polyphosphate, which is synthesized by the enzyme polyP kinase (PPK), is an important energy and phosphate storage polymer that plays a crucial role in the regulation of adaptive responses of cells to physical and chemical stresses. In this work, the polyphosphate kinase gene (ppk) of Streptomyces coelicolor was deleted, and the effect of this mutation on actinorhodin and undecylprodigiosin biosynthesis was investigated. Deletion of the ppk gene had a stimulatory effect on actinorhodin production; the mutant strain produced about 5 times more antibiotic compared to the wild type strain at 120 h of growth. There was no difference in undecylprodigiosin …


Cover And Contents Jan 2012

Cover And Contents

Turkish Journal of Biology

No abstract provided.


A Comparative Study On The Fatty Acid Composition Of The Oils From Five Bupleurum Species Collected From Turkey, Hati̇ce Taner Saraçoğlu, Gökhan Zengi̇n, Mehtap Akin, Apdurahman Aktümsek Jan 2012

A Comparative Study On The Fatty Acid Composition Of The Oils From Five Bupleurum Species Collected From Turkey, Hati̇ce Taner Saraçoğlu, Gökhan Zengi̇n, Mehtap Akin, Apdurahman Aktümsek

Turkish Journal of Biology

The oil content and fatty acid compositions of 5 Bupleurum species (B. intermedium, B. lancifolium, B. croceum, B. rotundifolium, and B. cappadocicum) were determined. Their oil contents ranged from 2.87% to 4.20%. Gas chromatography (GC) was used for the fatty acid composition. Twenty-one fatty acids were identified and quantified by GC. Oleic acid (C18:1) accounted for more than 50% of the total fatty acids in 3 of the Bupleurum species (B. intermedium, B. lancifolium, and B. rotundifolium). The total unsaturated fatty acid contents varied from 67.28% in B. cappadocicum to 87.06% in B. rotundifolium. The total saturated fatty acids represent …


Cover And Contents Jan 2012

Cover And Contents

Turkish Journal of Biology

No abstract provided.


Effect Of Exogenous Application Of Ascorbic Acid On Antioxidant Enzyme Activities, Proline Contents, And Growth Parameters Of Saccharum Spp. Hybrid Cv. Hsf-240 Under Salt Stress, Batool Ejaz, Zahoor Ahmad Sajid, Faheem Aftab Jan 2012

Effect Of Exogenous Application Of Ascorbic Acid On Antioxidant Enzyme Activities, Proline Contents, And Growth Parameters Of Saccharum Spp. Hybrid Cv. Hsf-240 Under Salt Stress, Batool Ejaz, Zahoor Ahmad Sajid, Faheem Aftab

Turkish Journal of Biology

The present study was undertaken to examine the effects of exogenous application of ascorbic acid (AA) through different modes on growth and associated biochemical parameters in Saccharum spp. hybrid cv. HSF-240, under salt stress. In a pot experiment, AA was applied through irrigation or foliar-spray at the concentrations of 0.1, 0.5, and 1 mM with or without 100 mM NaCl concentration. Vegetative growth measurements, antioxidant enzyme activities (POD and SOD), and protein and proline contents of plants were recorded to study the effects of these treatments. The presence of salt reduced the growth of sugarcane plants. The AA application not …


Dipeptidyl Peptidase Iv Production By Solid State Fermentation Using Alternative Fungal Sources, Gaye Öngen, Sayit Sargin, Özlem Üstün, Ceren Kutlu, Mesut Yücel Jan 2012

Dipeptidyl Peptidase Iv Production By Solid State Fermentation Using Alternative Fungal Sources, Gaye Öngen, Sayit Sargin, Özlem Üstün, Ceren Kutlu, Mesut Yücel

Turkish Journal of Biology

The present work was carried out for the production of dipeptidyl peptidase IV (DPP IV; EC 3.4.14.5) using Aspergillus, Penicillium, and Rhizopus strains under solid state fermentation conditions. Response surface methodology was applied for the optimization of the selected operational variables (corn flour, initial moisture content, and cultivation time) for DPP IV activity as the response. The optimal parameters of DPP IV activity for the independent variables, namely the amount of corn flour (% w/w), initial moisture content (% w/w), and cultivation time (days), were evaluated to be 2.44%, 60.85%, and 4.69 days, respectively, using Aspergillus awamori T116. The response …


Optimization Of Ultrasound Assisted Extraction Of Antioxidant Compounds From Marjoram (Origanum Majorana L.) Using Response Surface Methodology, Mohammad Hossain, Nigel Brunton, Ankit Patras, Brijesh Tiwari, C. O'Donnell, Ana Belen Martin-Diana, Catherine Barry-Ryan Jan 2012

Optimization Of Ultrasound Assisted Extraction Of Antioxidant Compounds From Marjoram (Origanum Majorana L.) Using Response Surface Methodology, Mohammad Hossain, Nigel Brunton, Ankit Patras, Brijesh Tiwari, C. O'Donnell, Ana Belen Martin-Diana, Catherine Barry-Ryan

Articles

The present study optimized the ultrasound assisted extraction (UAE) conditions to maximize the antioxidant activity [Ferric ion Reducing Antioxidant Power (FRAP)], total phenol content (TP) and content of individual polyphenols of extracts from marjoram. Optimal conditions with regard to amplitude of sonication (24.4–61.0 μm) and extraction temperature (15–35 °C) and extraction time (5–15 min) were identified using response surface methodology (RSM). The results showed that the combined treatment conditions of 61 μm, 35 °C and 15 min were optimal for maximizing TP, FRAP, rosmarinic acid, luteolin-7-O-glucoside, apigenin-7-O-glucoside, caffeic acid, carnosic acid and carnosol values of the …


Spiritual Support As Coping Among Alzheimer's Caregivers, Mary Katherine Schillings Jan 2012

Spiritual Support As Coping Among Alzheimer's Caregivers, Mary Katherine Schillings

LSU Master's Theses

The purpose of this study is to identify the effect of spiritual support on Alzheimer’s caregiver’s perceived burden. This study will examine the relationship between spiritual support and burden among Alzheimer’s caregivers. The collection of data was accomplished by a packet of surveys mailed to Alzheimer’s caregivers. For this study the population is separated and difficult to survey as a whole, therefore, a smaller cluster sample is surveyed from a specific organization. The global score of the burden measure is negatively correlated with the global score of the Spiritual Support Scale. In this study, spiritual support is not the sole …


Development Of A Frozen Yogurt Fortified With A Nano-Emulsion Containing Purple Rice Bran Oil, Luis Alonso Alfaro Sanabria Jan 2012

Development Of A Frozen Yogurt Fortified With A Nano-Emulsion Containing Purple Rice Bran Oil, Luis Alonso Alfaro Sanabria

LSU Master's Theses

The U.S. frozen dessert business, including retail and foodservice markets, is the largest in the world. There is a need for deserts that offer better nutritional attributes, such as antioxidants than traditional deserts. Purple rice bran oil (PRBO) is an excellent source of natural antioxidants including tocopherol, tocotrienol, and oryzanol. Adding nano-emulsions of purple rice bran oil (NPRBO) to many products including frozen yogurts (FY) will improve the nutritional profile of the product by substantially increasing the natural antioxidant content. This fortification may have the potential to broaden the FY market. The objectives of this study were to develop and …


Reduced Protein For Late-Lactation Dairy Cows, Andre De Barros Duarte Pereira Jan 2012

Reduced Protein For Late-Lactation Dairy Cows, Andre De Barros Duarte Pereira

LSU Master's Theses

Excess protein in dairy cattle diets unnecessarily increases the cost of production and may contribute to environmental pollution. The objective of this research was to evaluate the effect of feeding dairy cows with two levels of dietary protein on animal performance and manure characteristics. Two experiments were carried out with 24 lactating dairy cows each. Experiment 1 was corn silage based and had a control TMR (HP1) estimated to contain 16.5% CP with SBM and treatment TMR (LP1; 13.5% CP) using DDGS and rumen protected Lys and Met. Experiment 2 was ryegrass haylage based and had a control TMR (HP2) …


Effects Of Mimic Artificial Oyster Reefs On The Ecology Of Juvenile Fishes In Marsh Ponds: A Before-After-Control-Impact Analysis, Steven B. Garner Jan 2012

Effects Of Mimic Artificial Oyster Reefs On The Ecology Of Juvenile Fishes In Marsh Ponds: A Before-After-Control-Impact Analysis, Steven B. Garner

LSU Master's Theses

I sought to assess the enhancement potential of mimic artificial oyster reefs (MAORs) on trophic dynamics of juvenile estuarine fishes in marsh ponds. Tropic dynamics were investigated by determining the impacts of MAOR addition on meiofauna and macrofauna and then comparing these results to the gut contents and condition of four abundant estuarine fishes: Atlantic croaker (Micropogonias undulatus), bay whiff (Citharichthys spilopterus), sand seatrout (Cynoscion arenarius), and pinfish (Lagodon rhomboides). Samples were collected every other month for two years (March 2009 – 11) employing a Before-After-Control-Impact (BACI) design. Halfway through the experiment (March 2010), two mud sites in two marsh …


Influences On Behavior Adaptations To Reduce Exposure To Environmental Hazards Among Residents Of Louisiana's Upper Industrial Corridor, Corrinthia Marie Hinton Jan 2012

Influences On Behavior Adaptations To Reduce Exposure To Environmental Hazards Among Residents Of Louisiana's Upper Industrial Corridor, Corrinthia Marie Hinton

LSU Master's Theses

Over the past century, the growth in petrochemical manufacturing within Louisiana’s Upper Industrial Corridor brought economic development, but also introduced toxic emissions and environmental exposure risks to residents of the area. For the citizens living in close proximity to multiple facilities there is the added risk of chemical exposure from environmentally hazardous accidents. This study seeks to gain insights into patterns of risk-reducing behaviors of residents in East Baton Rouge Parish so that better educational outreach programs can be developed. This research addresses the following questions: To what extent are residents of Baton Rouge taking steps to reduce environmental exposure …


Evaluation Of Pleistocene To Holocene (Mis 5 To 1) Climatic Changes In Southwestern Black Sea: A Palynological Study Of Dsdp Site 380, Shannon Ferguson Jan 2012

Evaluation Of Pleistocene To Holocene (Mis 5 To 1) Climatic Changes In Southwestern Black Sea: A Palynological Study Of Dsdp Site 380, Shannon Ferguson

LSU Master's Theses

Site 380 of the Deep Sea Drilling Program [DSDP] is located in the southwestern region of the Black Sea (42°05.94’, 29°36.82’E). The location of this site is important due to its proximity to the narrow Bosphorus strait, the only present-day connection between the Black Sea and the Aegean Sea. Drops in eustatic sea level during extensive Pleistocene glacial episodes disconnected the Black Sea from the Aegean Sea at the Bosphorus strait, creating a change from brackish to freshwater within the Black Sea during these intervals. Organic-walled phytoplankton (dinoflagellate cysts, acritarchs, and fresh-water algae) are investigated to better constrain these glacio-eustatic …


Key Elements Of Poverty Influencing Language Development And Academic Achievement, Joanna L. Eggert Jan 2012

Key Elements Of Poverty Influencing Language Development And Academic Achievement, Joanna L. Eggert

Honors Program Theses

This paper investigates central issues surrounding poverty and how it influences a child's language development and academic achievement. It examines the differences in amounts of language input in the home environments of children from varying socioeconomic statuses and how this shapes their language acquisition. The research also explores the exposure to prenatal teratogens in addition to environmental toxins associated with poverty that may play a role in disparities in development, such as lead exposure. Furthermore, the issue of unequal healthcare and educational access between individuals of differing income levels is addressed. Ultimately, the purpose of this research is to call …


Antimicrobial, Antioxidant And Free Radical-Scavenging Capacity Of Brown Seaweed Himanthalia Elongata From Western Coast Of Ireland, Gaurav Rajauria, Amit Jaiswal, Nissreen Abu-Ghannam, Shilpi Gupta Jan 2012

Antimicrobial, Antioxidant And Free Radical-Scavenging Capacity Of Brown Seaweed Himanthalia Elongata From Western Coast Of Ireland, Gaurav Rajauria, Amit Jaiswal, Nissreen Abu-Ghannam, Shilpi Gupta

Articles

Water,methanol and mixtures (20–80%) thereof have been used for the extraction of phenolic compounds from Irish brown seaweed Himanthalia elongata for studying its antimicrobial and antioxidant properties.The 60%methanolic extract exhibited significantly (P < 0.05) the highest value of yield (6.8 6 0.24%), total phenol (286.0 6 4.61 mg gallic acid equivalents/g), flavonoid (109.8 6 2.68 mg quercetin equivalents/g) and condensed tannin content (35.6 6 1.03 mgcatechin equivalents/ g). Antimicrobial activity of 60% methanolic extract tested from disc diffusion and broth dilution methods was effective against various food spoilage and pathogenic bacteria studied.The same extract exhibited statistically highest reducing power and antioxidant capacity againstDPPHradical,metal ions, lipid peroxides and hydrogen peroxide radicals. The UV-visible spectroscopy showed absorption maxima at 205 and 260 nm and the presence of hydroxyl group (3,431 cm-1) and an aromatic ring (around 1,465, 1,505 and 1,624 cm-1) in Fourier Transform Infrared spectroscopy, suggested the presence of phenolic compounds in the extract.


"From Research To Realized Garments": A Costume Design Process For Dying City, Tori Rezek Jan 2012

"From Research To Realized Garments": A Costume Design Process For Dying City, Tori Rezek

Honors Program Theses

The purpose of my thesis project is to develop and document an approach to costume design that would support this method by creating realistic visual images of the characters the actors developed. This portfolio displays my complete costume design process for Dying City. It includes notes, sketches, research images, and charts that helped inform the final costume design for the production. The collaborative processes I participated in with the production team (involving the director; scenic, lighting, and sound designers; and stage management) and the build team (the costume technical director, cutter/drapers, and stichers) also aided in the development of my …


Mountain Pine Beetle Outbreaks In High Elevation Whitebark Pine Forests: The Effects Of Tree Host Species And Blister Rust Infection Severity On Beetle Productivity, Edith Mary Dooley Jan 2012

Mountain Pine Beetle Outbreaks In High Elevation Whitebark Pine Forests: The Effects Of Tree Host Species And Blister Rust Infection Severity On Beetle Productivity, Edith Mary Dooley

Graduate Student Theses, Dissertations, & Professional Papers

In recent years, the mountain pine beetle (MPB, Dendroctonus ponderosae) has caused dramatic levels of mortality of whitebark pine (Pinus albicaulis). This keystone and foundation tree species is also being killed by the exotic fungus, Cronartium ribicola, which causes the disease white pine blister rust (WPBR). This study examines MPB productivity in whitebark pine compared to that in lodgepole pine, and also in whitebark pine of varying WPBR infection severities to determine if either of these host factors contributes to the current, dramatic MPB outbreaks in whitebark pine. To evaluate host tree effects on MPB, I tracked attack densities, emergence …


Pig (Sus Scrofa) Exploitation At Hallan Çemi, Southeastern Anatolia: Proposing An Alternative Model, Ximena Lemoine Jan 2012

Pig (Sus Scrofa) Exploitation At Hallan Çemi, Southeastern Anatolia: Proposing An Alternative Model, Ximena Lemoine

University Honors Theses

Hallan Çemi presents itself as a unique site to study the transitional period before the onset of agriculture in the Near East. The site fails to fit nicely into demographic or environmental models that have widely been accepted for the region. Hallan Çemi thus represents the potential to study innovative human strategies for subsistence, and to provide insight into the processes that led to the eventual adoption of agriculture only a few millennia later. Richard Redding and Michael Rosenberg presented one such innovative strategy for pig exploitation at this site with their New Guinean model (Redding and Rosenberg 1998; Rosenberg …


Protein Timing And Its Effects On Muscular Hypertrophy And Strength In Individuals Engaged In Weight-Training, Judith Lukaszuk, Matthew Stark, Aimee Prawitz, Amanda Salacinski Jan 2012

Protein Timing And Its Effects On Muscular Hypertrophy And Strength In Individuals Engaged In Weight-Training, Judith Lukaszuk, Matthew Stark, Aimee Prawitz, Amanda Salacinski

Faculty Articles, Papers, and Other Scholarship

The purpose of this review was to determine whether past research provides conclusive evidence about the effects of type and timing of ingestion of specific sources of protein by those engaged in resistance weight training. Two essential, nutrition-related, tenets need to be followed by weightlifters to maximize muscle hypertrophy: the consumption of 1.2-2.0 g protein.kg -1 of body weight, and ≥44-50 kcal.kg-1 of body weight. Researchers have tested the effects of timing of protein supplement ingestion on various physical changes in weightlifters. In general, protein supplementation pre- and post-workout increases physical performance, training session recovery, lean body mass, muscle hypertrophy, …


Quantitative Analysis Of Some Important Metals And Metalloids In Tobacco Products By Inductively Coupled Plasma-Mass Spectrometry (Icp-Ms), Syed Ghulam Musharraf, Muhammad Shoaib, Amna Jabbar Siddiqui, Muhammad Najam-Ul-Haq, Aftab Ahmed Jan 2012

Quantitative Analysis Of Some Important Metals And Metalloids In Tobacco Products By Inductively Coupled Plasma-Mass Spectrometry (Icp-Ms), Syed Ghulam Musharraf, Muhammad Shoaib, Amna Jabbar Siddiqui, Muhammad Najam-Ul-Haq, Aftab Ahmed

Pharmacy Faculty Articles and Research

Background: Large scale usage of tobacco causes a lot of health troubles in human. Various formulations of tobacco are extensively used by the people particularly in developing world. Besides several toxic tobacco constituents some metals and metalloids are also believed to pose health risks. This paper describes inductively coupled plasma-mass spectrometric (ICP-MS) quantification of some important metals and metalloids in various brands of smoked, sniffed, dipped and chewed tobacco products.

Results: A microwave-assisted digestion method was used for sample preparation. The method was validated by analyzing a certified reference material. Percentage relative standard deviation (% R.S.D.) between recovered …


A Method To Assess The Organizing Behaviors Used In Physicians' Counseling Of Standardized Parents After Newborn Genetic Screening, Stephanie A. Christopher, Nadia Y. Ahmad, Lisa Bradford, Jenelle Collins, Kerry L. Eskra, Alison La Pean Kirschner, Faith O. O'Tool, Sara J. Roedl, Michael H. Farrell Jan 2012

A Method To Assess The Organizing Behaviors Used In Physicians' Counseling Of Standardized Parents After Newborn Genetic Screening, Stephanie A. Christopher, Nadia Y. Ahmad, Lisa Bradford, Jenelle Collins, Kerry L. Eskra, Alison La Pean Kirschner, Faith O. O'Tool, Sara J. Roedl, Michael H. Farrell

College of Professional Studies Faculty Research and Publications

Well-organized conversation can improve people’s ability to comprehend and retain information. As part of a long-term effort to adapt Quality Improvement techniques for communication, we developed an explicit criteria method to assess usage of three organizing behaviors (OBs): ‘opening behaviors’ to establish goals; ‘structuring behaviors’ to guide patients through conversation; and ‘emphasizing behaviors’ that signal a need for attention. Pairs of abstractors independently reviewed transcripts in a demonstration sample of conversations between physicians and standardized parents after newborn screening identifies carrier status for sickle cell disease. Criteria for at least one OB were identified in 50/84 transcripts (60%), including 27 …


Forecasting Terrorism: The Need For A More Systematic Approach, Edwin Bakker Jan 2012

Forecasting Terrorism: The Need For A More Systematic Approach, Edwin Bakker

Journal of Strategic Security

This article analyzes a unique branch of terrorism literature—terrorism futures—by academics, think tanks, and governmental agencies published between 2000 and 2012. To this end, it examines over sixty publications that attempt to discern possible futures of terrorism. In general, the track record of forecasting terrorism has not been good. This is particularly true for major changes in the modus operandi of terrorism, the attacks on 9/11 being a case in point. The analyses of the future of terrorism shows an absence of methodologies, and the lack of theoretical foundations, which lead to limited insights about the causes of changes in …


Anti-Stereotyping And "The End Of Men", Barbara Stark Jan 2012

Anti-Stereotyping And "The End Of Men", Barbara Stark

Hofstra Law Faculty Scholarship

As scholars have recently shown, Justice Ruth Bader Ginsburg’s earliest sex discrimination work was grounded in anti-stereotyping theory. The particular stereotype she challenged was that of males as breadwinners and females as homemakers. As Cary Franklin notes, Justice Ginsburg’s approach was grounded in “constitutional limits on the state’s power to enforce sex-role stereotypes.” While Justice Ginsburg herself has come to realize that anti- stereotyping may not suffice to combat sex discrimination, her early focus on the ways in which stereotyping affects men, specifically men who did not fit the breadwinner stereotype, and her argument that only state-sanctioned stereotypes are constitutionally …


Investigating The Potential Existence Of Endophytic Bacteria In Early Stage Maize Kernels, Matthew Anderson Jan 2012

Investigating The Potential Existence Of Endophytic Bacteria In Early Stage Maize Kernels, Matthew Anderson

Theses & ETDs

Endophytic bacteria reside inside of a host plant for part of or all of their life cycle without causing any apparent symptoms of disease. Most endophytes have a symbiotic relationship with their host, offering benefits such as increased nutrient uptake, stimulated phytohormone production, or improved resistance to pathogens and toxins. Endophytic bacteria have been well studied in various tissues of many different crops, but their potential presence has not been investigated in maize kernels at early developmental stages. The aims of this thesis research were to investigate the potential existence of endophytic bacterial communities in Zea mays L. (maize) kernels …


The Distribution Of Cyphoma Gibbosum (Mollusca Gastropoda: Cypraeoidea: Ovulidae) (The Flamingo Tongue Gastropod) In Relation To The Presence Of The Fungal Disease Aspergillosis On Gorgonia Spp. (Anthozoa: Cnidaria: Octocorallia: Gorgoniidae), Julie Christina Krzykwa Jan 2012

The Distribution Of Cyphoma Gibbosum (Mollusca Gastropoda: Cypraeoidea: Ovulidae) (The Flamingo Tongue Gastropod) In Relation To The Presence Of The Fungal Disease Aspergillosis On Gorgonia Spp. (Anthozoa: Cnidaria: Octocorallia: Gorgoniidae), Julie Christina Krzykwa

Theses & ETDs

The fungal disease Aspergillosis has been an ongoing epizootic in the Caribbean since its identification in 1995. Further investigation into the environmental or biological vectors of Aspergillosis is of great interest, as this disease has had a considerable impact on coral reefs in the Caribbean. The gastropod Cyphoma gibbosum is able to pass viable spores of Aspergillus sydowii (Ascomycota: Eurotiomycetes: Eurotiales: Trichocomaceae), the fungus thought to cause the disease, and previous field studies noted an increased presence of C. gibbosum during Aspergillosis outbreaks. These observations suggest that C. gibbosum may be a biological vector of Aspergillosis. This study looked at …


Evaluation Of Algae Concentration In Manure Based Media, Maira Freire Pecegueiro Do Amaral Jan 2012

Evaluation Of Algae Concentration In Manure Based Media, Maira Freire Pecegueiro Do Amaral

Theses and Dissertations--Biosystems and Agricultural Engineering

Algae can be used to treat wastewater and manure while producing a feedstock for renewable energy. Algae require nutrients to achieve their maximum growth and manure could provide those nutrients, thereby reducing the cost of algae production and the impact of manure treatment. Algae concentration during cultivation is a critical variable that is difficult to measure due to the high concentration of suspended solids present in manure. This dissertation addresses methods to measure algae concentration in the presence of manure solids.

Quantifying the algae concentration gravimetrically or by optical density was unreliable due to manure solids interfering with the measurement. …


The Impact Of Water Supply And Sanitation On Child Health: Evidence From Egypt, Rania Roushdy, Maia Sieverding, Hanan Radwan Jan 2012

The Impact Of Water Supply And Sanitation On Child Health: Evidence From Egypt, Rania Roushdy, Maia Sieverding, Hanan Radwan

Poverty, Gender, and Youth

Using a combination of qualitative and quantitative data, this working paper investigates whether access to improved sources of water and sanitation is an effective “treatment” for the incidence of diarrhea among children under five years of age in Egypt. Both components of the study indicate that widespread access to improved sources of drinking water and toilet facilities exists across Egypt; however, service quality remains a significant problem in many areas. In particular, cuts in water supply—and the resulting practice of storing water—are quite common; a sizable percentage of flush toilet facilities are not connected to the public sewer system; and …